CN118999201A - Heat exchanger with turbulent flow structure, heat exchange method and application of heat exchanger in heat exchange equipment - Google Patents
Heat exchanger with turbulent flow structure, heat exchange method and application of heat exchanger in heat exchange equipment Download PDFInfo
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- CN118999201A CN118999201A CN202411481000.8A CN202411481000A CN118999201A CN 118999201 A CN118999201 A CN 118999201A CN 202411481000 A CN202411481000 A CN 202411481000A CN 118999201 A CN118999201 A CN 118999201A
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- 238000000034 method Methods 0.000 title claims abstract description 31
- 239000012530 fluid Substances 0.000 claims abstract description 77
- 230000009471 action Effects 0.000 claims abstract description 17
- 238000007790 scraping Methods 0.000 claims description 46
- 238000001514 detection method Methods 0.000 claims description 44
- 230000000694 effects Effects 0.000 claims description 15
- 238000009434 installation Methods 0.000 claims description 8
- 230000008676 import Effects 0.000 claims description 6
- 230000009467 reduction Effects 0.000 claims description 3
- 230000001965 increasing effect Effects 0.000 abstract description 6
- 230000002708 enhancing effect Effects 0.000 abstract description 4
- 230000008569 process Effects 0.000 description 19
- 238000004140 cleaning Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/16—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation
- F28D7/1607—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation with particular pattern of flow of the heat exchange media, e.g. change of flow direction
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F27/00—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/001—Casings in the form of plate-like arrangements; Frames enclosing a heat exchange core
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/24—Arrangements for promoting turbulent flow of heat-exchange media, e.g. by plates
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
- F28G1/00—Non-rotary, e.g. reciprocated, appliances
- F28G1/08—Non-rotary, e.g. reciprocated, appliances having scrapers, hammers, or cutters, e.g. rigidly mounted
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
- F28G15/00—Details
- F28G15/003—Control arrangements
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Fluid Mechanics (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
本发明涉及换热器技术领域，公开了一种具有扰流结构的换热器、换热方法及在换热设备中的应用，该换热器包括换热组件，所述换热组件包括壳体和换热管，所述壳体的内部设置有折流组件，所述折流组件的两端均分别设置有第一调节组件和第二调节组件，所述换热管的内部设置有扰流结构，扰流结构包括三角翼片，所述三角翼片的数量有多个，多个所述三角翼片呈环形设置于换热管的内壁。本发明通过设置扰流结构，使换热管内的流体产生的纵向涡流，在涡流的作用下，靠近换热管内壁端的流体湍流强度增大，从而使换热管不同部位的流体混合均匀，显著增强换热管内流体的混合速率，破坏边界层并提升管内流体的湍流强度，实现强化传热的目的。
The present invention relates to the technical field of heat exchangers, and discloses a heat exchanger with a turbulent structure, a heat exchange method, and an application in a heat exchange device. The heat exchanger includes a heat exchange component, the heat exchange component includes a shell and a heat exchange tube, a baffle component is arranged inside the shell, and a first adjustment component and a second adjustment component are arranged at both ends of the baffle component, respectively, and a turbulent structure is arranged inside the heat exchange tube, and the turbulent structure includes a triangular wing, and the number of the triangular wing is multiple, and the multiple triangular wing is arranged in an annular shape on the inner wall of the heat exchange tube. The present invention sets a turbulent structure to generate a longitudinal vortex in the fluid in the heat exchange tube. Under the action of the vortex, the turbulent intensity of the fluid near the inner wall end of the heat exchange tube is increased, so that the fluids in different parts of the heat exchange tube are mixed evenly, the mixing rate of the fluid in the heat exchange tube is significantly enhanced, the boundary layer is destroyed and the turbulent intensity of the fluid in the tube is increased, and the purpose of enhancing heat transfer is achieved.
Description
Technical Field
The invention belongs to the technical field of heat exchangers, and particularly relates to a heat exchanger with a turbulent flow structure, a heat exchange method and application of the heat exchanger in heat exchange equipment.
Background
The heat exchanger, also called heat exchanger, is an energy-saving equipment for transferring heat between two or more fluids with different temperatures, and is characterized by that the heat is transferred from fluid with higher temperature to fluid with lower temperature, so that the fluid temperature can be reached to the index defined by flow path so as to meet the requirements of technological condition, at the same time, it is one of main equipment for raising energy utilization rate, and the heat exchanger industry relates to more than 30 industries of heating ventilation, pressure container, medium water treatment equipment, chemical industry, petroleum, etc.
The chinese patent with 2018114268841 discloses a tubular heat exchanger with turbulent flow, including a tube shell, a tube plate, a plurality of sleeve sheets, a plurality of baffle plates and a cooling tube bundle, but the heat exchange efficiency is low, the adjustment is inconvenient, the dirt is generated after long-time use, and the cleaning is inconvenient.
A tubular heat exchanger is disclosed in chinese patent No. 2023113684785, comprising a housing, on which a heat medium inlet, a heat medium outlet, a cold medium inlet and a cold medium outlet are provided; the shell is internally and detachably provided with a plurality of tube bundles, heat flow enters the tube bundles through the heat medium inlet and flows out of the heat medium outlet through the tube bundles, cold flow enters the shell through the cold medium inlet and flows out of the cold medium outlet after flowing through the outside of the tube bundles, and the cold flow exchanges heat with the heat flow through the tube bundles, but vibration is generated when the flow velocity of the passing fluid in the tube bundles is too high, so that the tube bundles are easy to deform and damage.
Based on the scheme, because the fluid can generate vortex in the process of passing through the heat exchange tube, when the flow speed of the fluid passing through the heat exchange tube is too high, the heat exchange tube can vibrate, and the excessive vibration can also cause friction collision between the heat exchange tube and the upper baffle plate and between the heat exchange tube and the lower baffle plate, so that the heat exchange tube is deformed and damaged, and the service life of the heat exchange tube is reduced;
Meanwhile, in the heat exchange process, as a plurality of flow dead areas exist in the shell, when the flow rate of fluid in the heat exchange tube is small, insufficient heat exchange is easily caused when the flow rate is low;
because the heat exchange tube is used for a long time, dirt is easy to adhere to the surface of the heat exchange tube or the inner wall of the shell, the heat exchange tube cannot be cleaned in time, and the heat exchange effect can be affected due to excessive dirt, so that the heat exchange efficiency is low.
Disclosure of Invention
In view of the above problems, the present invention provides a heat exchanger with a turbulent flow structure, a heat exchange method and an application in a heat exchange device, so as to solve the problems set forth in the background art.
In order to achieve the above purpose, the present invention provides the following technical solutions: the heat exchanger with the turbulent flow structure comprises a heat exchange assembly, wherein the heat exchange assembly comprises a shell and a heat exchange tube, a baffle assembly is arranged in the shell, and a first adjusting assembly and a second adjusting assembly are respectively arranged at two ends of the baffle assembly;
The inside of the heat exchange tube is provided with a turbulence structure, the turbulence structure comprises a plurality of triangular fins, and the plurality of triangular fins are annularly arranged on the inner wall of the heat exchange tube;
The baffle assembly comprises an upper baffle plate and a lower baffle plate, a first detection scraping ring is arranged on one side of the upper baffle plate, and a second detection scraping ring is arranged on one side of the lower baffle plate;
The first detection scraping ring and the second detection scraping ring are both internally provided with pressure sensors.
Preferably, the number of the turbulence structures is multiple, the turbulence structures are linearly arranged in the heat exchange tube, and the surfaces of the triangular fins are provided with circular holes.
Preferably, a first round hole is formed in the position, connected with the upper baffle plate, of the heat exchange tube, a first conical scraping ring is arranged in the first round hole, and the heat exchange tube penetrates through the first detection scraping ring and extends to the outer part of the upper baffle plate;
The heat exchange tube is connected with the lower baffle plate, a second round hole is formed in the position, connected with the lower baffle plate, of the heat exchange tube, a second conical scraping ring is arranged in the second round hole, and the heat exchange tube penetrates through the second detection scraping ring and extends to the outer portion of the lower baffle plate.
Preferably, a first end cover is arranged at one end of the shell, a second end cover is arranged at one end of the shell far away from the first end cover, and a support is arranged below the shell;
the surface of first end cover is provided with the cold flow import, the surface of second end cover is provided with the cold flow mouth, the surface of casing is provided with the hot flow import, the one end that the casing kept away from the hot flow import is provided with the hot flow mouth.
Preferably, a first tube plate and a second tube plate are arranged in the shell, the first tube plate and the second tube plate are respectively arranged at two ends of the heat exchange tube, and fixing holes are formed in the surfaces of the first tube plate and the second tube plate and are matched with the heat exchange tube;
The number of the upper baffle plates is two, the number of the lower baffle plates is two, and the upper baffle plates and the lower baffle plates are arranged between the first tube plate and the second tube plate in a crossing way.
Preferably, the first adjusting component comprises a first electric control telescopic rod, the first electric control telescopic rod is arranged at one end of the first tube plate, a first mounting rod is arranged above the first electric control telescopic rod, and a first spring is arranged on the surface of the first mounting rod;
The first installation rod movably penetrates through the upper baffle plate close to the first tube plate, and an output shaft of the first electric control telescopic rod is connected with the lower baffle plate close to one side of the first tube plate.
Preferably, the second adjusting assembly comprises a second electric control telescopic rod, the second electric control telescopic rod is arranged at one end of the second tube plate, a second mounting rod is arranged below the second electric control telescopic rod, and a second spring is arranged on the surface of the second mounting rod;
The second installation rod movably penetrates through the lower baffle plate close to the second tube plate, and an output shaft of the second electric control telescopic rod is connected with the upper baffle plate close to one side of the second tube plate.
The heat exchange method of the heat exchanger with the turbulent flow structure comprises the following specific steps:
S1: firstly, respectively introducing hot fluid and cold fluid into a shell in a heat exchange assembly and the interior of a heat exchange tube, wherein heat transfer can occur between the two fluids in a flowing state of the two fluids, and the fluid in the heat exchange tube can enhance the turbulence effect under the action of a triangular fin, so that the heat transfer efficiency is improved;
S2: then according to different conditions of fluid in the heat exchange tube, the positions of the upper baffle plate and the lower baffle plate in the heat exchange assembly are adjusted by matching the first adjusting assembly and the second adjusting assembly, so that the direction and the speed of the fluid in the shell are changed, and the heat exchange strength and efficiency are improved;
S3: and finally, the upper baffle plate and the lower baffle plate reciprocate on the heat exchange tube through the matching of the first adjusting assembly and the second adjusting assembly, so that dirt on the surface of the heat exchange tube or the inner wall of the shell is cleaned, and the reduction of heat exchange efficiency is avoided.
The invention also provides application of the heat exchanger with the turbulence structure in heat exchange equipment.
Compared with the prior art, the invention has the following beneficial effects:
1. By arranging the turbulence structure, the invention increases the turbulence intensity of the fluid close to the inner wall end of the heat exchange tube under the action of the turbulence, thereby uniformly mixing the fluids at different parts of the heat exchange tube, obviously enhancing the mixing rate of the fluid in the heat exchange tube, damaging the boundary layer and improving the turbulence intensity of the fluid in the heat exchange tube, and realizing the purpose of enhancing heat transfer.
2. According to the invention, the vibration amplitude of different positions of the heat exchange tube is detected through the pressure sensors on the first detection scraping ring and the second detection scraping ring, the vibration of the heat exchange tube is judged through comparing the detection value of the pressure sensors with the preset value, and the positions of the upper baffle plate and the lower baffle plate on the heat exchange tube are adjusted through the cooperation of the first electric control telescopic rod and the second electric control telescopic rod, so that the natural frequency of the heat exchange tube is improved, and the vibration of the heat exchange tube is reduced.
3. According to the invention, the vibration amplitude of different positions of the heat exchange tube is detected by the pressure sensors on the first detection scraping ring and the second detection scraping ring, the flow in the heat exchange tube is judged, and the distance between the upper baffle plate and the lower baffle plate is adjusted by matching the first electric control telescopic rod and the second electric control telescopic rod, so that the heat exchange effect is improved.
4. According to the invention, the first electric control telescopic rod is matched with the second electric control telescopic rod, so that the upper baffle plate and the lower baffle plate reciprocate on the heat exchange tube, dirt on the surface of the heat exchange tube is scraped and cleaned through the first detection scraping ring, the second detection scraping ring, the first conical scraping ring and the second conical scraping ring, and meanwhile, dirt on the inner wall of the shell is scraped and cleaned through the upper baffle plate and the lower baffle plate.
Drawings
FIG. 1 is a schematic cross-sectional view of the overall structure of the present invention;
FIG. 2 is a schematic view of a heat exchange assembly according to the present invention;
FIG. 3 is a schematic cross-sectional view of a housing structure of the present invention;
FIG. 4 is a schematic view in partial cross-section of a heat exchange tube structure of the present invention;
FIG. 5 is a schematic view of the assembled heat exchange assembly and baffle assembly of the present invention;
FIG. 6 is an enlarged view of the portion A of FIG. 5 in accordance with the present invention;
FIG. 7 is an enlarged view of FIG. 5B in accordance with the present invention;
FIG. 8 is a schematic view of a baffle assembly according to the present invention;
FIG. 9 is an enlarged view of FIG. 8 at C in accordance with the present invention;
FIG. 10 is an enlarged view of the portion D of FIG. 8 in accordance with the present invention;
FIG. 11 is a schematic diagram of the assembly structure of the baffle assembly and the first and second adjustment assemblies of the present invention.
In the figure: 1. a heat exchange assembly; 101. a housing; 102. a heat exchange tube; 1021. triangular fins; 103. a first end cap; 104. a second end cap; 105. a first tube sheet; 106. a second tube sheet; 107. a cold flow inlet; 108. cold flow discharge; 109. a heat flow inlet; 110. a heat flow exhaust port; 111. a support; 2. a baffle assembly; 201. an upper baffle; 2011. a first round hole; 2012. a first tapered wiper ring; 2013. a first detection scraper ring; 202. a lower baffle; 2021. a second round hole; 2022. a second tapered wiper ring; 2023. a second detection scraper ring; 3. a first adjustment assembly; 301. the first electric control telescopic rod; 302. a first mounting bar; 303. a first spring; 4. a second adjustment assembly; 401. the second electric control telescopic rod; 402. a second mounting bar; 403. and a second spring.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1 to 11, the heat exchanger with the turbulent flow structure of the present invention comprises a heat exchange assembly 1, wherein the heat exchange assembly 1 comprises a shell 101 and a heat exchange tube 102, a baffle assembly 2 is arranged in the shell 101, and a first adjusting assembly 3 and a second adjusting assembly 4 are respectively arranged at two ends of the baffle assembly 2.
As shown in fig. 2 and 3, a first end cover 103 is disposed at one end of the casing 101, a second end cover 104 is disposed at one end of the casing 101 far away from the first end cover 103, a support 111 is disposed below the casing 101, the support 111 is used for supporting and fixing the casing 101, a cold flow inlet 107 is disposed on the surface of the first end cover 103, a cold flow exhaust 108 is disposed on the surface of the second end cover 104, through the arrangement of the cold flow inlet 107 and the cold flow exhaust 108, for the ingress and egress of fluid inside the heat exchange tube 102, a hot flow inlet 109 is disposed on the surface of the casing 101, a hot flow exhaust 110 is disposed at one end of the casing 101 far away from the hot flow inlet 109, for the ingress and egress of fluid outside the heat exchange tube 102, thereby realizing heat transfer between fluid inside the heat exchange tube 102 and fluid outside the heat exchange tube 102, a first tube plate 105 and a second tube plate 106 are disposed inside the casing 101, the first tube plate 105 and the second tube plate 106 are disposed at two ends of the heat exchange tube 102, fixing holes are disposed on the surfaces of the first tube plate 105 and the second tube plate 106, the fixing holes are adapted to the heat exchange tube 102, and the first tube plate 105 and the second tube plate 106 are used for fixing the heat exchange tube 102.
As shown in fig. 8 to 10, the baffle assembly 2 includes an upper baffle 201 and a lower baffle 202, for increasing the flow rate of the fluid outside the heat exchange tube 102, a first circular hole 2011 is formed at a position where the heat exchange tube 102 is connected to the upper baffle 201, a second circular hole 2021 is formed at a position where the heat exchange tube 102 is connected to the lower baffle 202, by providing the first circular hole 2011 and the second circular hole 2021, the heat exchange tube 102 passes through the upper baffle 201 or the lower baffle 202, the number of the upper baffle 201 is two, the number of the lower baffle 202 is two, and the upper baffle 201 and the lower baffle 202 are disposed between the first tube plate 105 and the second tube plate 106 in a crossing manner.
As shown in fig. 4, a turbulence structure is disposed inside the heat exchange tube 102, the turbulence structure includes a plurality of triangular fins 1021, the number of the triangular fins 1021 is plural, the plurality of triangular fins 1021 are annularly disposed on the inner wall of the heat exchange tube 102, the number of the turbulence structure is plural, the plurality of turbulence structures are linearly disposed inside the heat exchange tube 102, and circular holes are formed on the surface of the triangular fins 1021.
When the heat exchanger is used for heat exchange, heat flow enters the shell 101 from the heat flow inlet 109, is discharged from the heat flow outlet 110, cold flow enters the first end cover 103 from the cold flow inlet 107 and enters the heat exchange tube 102, is guided into the second end cover 104 through a turbulence structure formed by triangular fins 1021 in the heat exchange tube 102, and in the process, the heat fluid in the shell 101 exchanges heat with the cold fluid in the heat exchange tube 102 through the tube wall of the heat exchange tube 102.
In order to improve the heat transfer effect, a turbulence structure is arranged in the heat exchange tube 102, when fluid flows in the heat exchange tube 102, the fluid collides with the triangular fins 1021 in the heat exchange tube 102, and under the action of the plurality of triangular fins 1021, the fluid in the heat exchange tube 102 is induced to generate multi-scale longitudinal turbulence, the longitudinal turbulence is parallel to the flow direction, a entrainment effect is generated, the fluid near the wall surface is wrapped and clamped flows downwards to the center of a drainage basin, and under the action of the turbulence, the turbulence intensity of the fluid near the inner wall end of the heat exchange tube 102 is increased, so that the fluid at different parts of the heat exchange tube 102 is uniformly mixed, the mixing rate of the fluid in the heat exchange tube 102 is obviously enhanced, the boundary layer is destroyed, the turbulence intensity of the fluid in the tube is improved, and the purpose of enhancing the heat transfer is realized.
Meanwhile, the circular holes are formed in the surface of the triangular fins 1021, so that fluid in the heat exchange tube 102 forms jet flow after passing through the small holes, stagnant fluid in a recirculation area is reduced, heat transfer is enhanced, in addition, friction resistance in the flowing process can be reduced through the circular holes, friction loss is further reduced, and overall thermal performance is improved.
In the above process, because the fluid can generate vortex in the process of passing through the heat exchange tube 102, when the flow speed of the fluid passing through the heat exchange tube 102 is too fast, the heat exchange tube 102 can vibrate, and the excessive vibration can also cause friction collision between the heat exchange tube 102 and the upper baffle 201 and the lower baffle 202, so that the heat exchange tube 102 is deformed and damaged, and the service life of the heat exchange tube 102 is reduced; meanwhile, in the heat exchange process, as a plurality of flow dead areas exist in the shell 101, when the flow rate of fluid in the heat exchange tube 102 is small, insufficient heat exchange is easily caused when the flow rate is low; because of long-time use, dirt is easy to adhere to the surface of the heat exchange tube 102 or the inner wall of the shell 101, the dirt cannot be cleaned in time, and the heat exchange effect is affected by excessive dirt, so that the heat exchange efficiency is low.
In order to solve the above problems, the heat exchanger further includes:
As shown in fig. 9 and 10, a first detection scraping ring 2013 is provided on one side of the upper baffle 201, a second detection scraping ring 2023 is provided on one side of the lower baffle 202, and pressure sensors are provided inside the first detection scraping ring 2013 and the second detection scraping ring 2023.
The first circular hole 2011 is internally provided with a first conical scraper ring 2012, the heat exchange tube 102 penetrates the first detection scraper ring 2013 and extends to the outside of the upper baffle 201, the second circular hole 2021 is internally provided with a second conical scraper ring 2022, and the heat exchange tube 102 penetrates the second detection scraper ring 2023 and extends to the outside of the lower baffle 202.
In use, the pressure sensor is used for detecting the vibration degree of the heat exchange tube 102 in the heat exchange process, and in addition, the first detection scraping ring 2013, the second detection scraping ring 2023, the first conical scraping ring 2012 and the second conical scraping ring 2022 are arranged for scraping dirt on the surface of the heat exchange tube 102, and the upper baffle 201 and the lower baffle 202 are arranged for scraping dirt on the inner wall of the shell 101.
As shown in fig. 5 to 7 and 11, the first adjusting assembly 3 comprises a first electrically controlled telescopic rod 301, the first electrically controlled telescopic rod 301 is arranged at one end of the first tube plate 105, a first mounting rod 302 is arranged above the first electrically controlled telescopic rod 301, a first spring 303 is arranged on the surface of the first mounting rod 302, the first mounting rod 302 movably penetrates through an upper baffle 201 close to the first tube plate 105, and an output shaft of the first electrically controlled telescopic rod 301 is connected with a lower baffle 202 close to one side of the first tube plate 105.
The second adjusting component 4 comprises a second electric control telescopic rod 401, the second electric control telescopic rod 401 is arranged at one end of the second tube plate 106, a second installation rod 402 is arranged below the second electric control telescopic rod 401, a second spring 403 is arranged on the surface of the second installation rod 402, the second installation rod 402 movably penetrates through the lower baffle plate 202 close to the second tube plate 106, and an output shaft of the second electric control telescopic rod 401 is connected with the upper baffle plate 201 close to one side of the second tube plate 106.
In use, the first electrically controlled telescopic rod 301 is controlled by the controller to extend, the first electrically controlled telescopic rod 301 pushes the lower baffle plate 202 positioned close to the first tube plate 105 to move together, so that the position of the lower baffle plate 202 on the heat exchange tube 102 is adjusted, and similarly, the second electrically controlled telescopic rod 401 is controlled by the controller to extend, and the second electrically controlled telescopic rod 401 pushes the upper baffle plate 201 positioned close to the second tube plate 106 to move together, so that the position of the upper baffle plate 201 on the heat exchange tube 102 is adjusted.
In the heat exchange process, since fluid generates vortex in the process of passing through the heat exchange tube 102, impact is caused on the heat exchange tube 102 to make the heat exchange tube 102 vibrate, the vibration amplitudes of different positions of the heat exchange tube 102 are detected by the pressure sensors on the first detection scraping ring 2013 and the second detection scraping ring 2023, and the vibration of the heat exchange tube 102 is judged by comparing the difference between the detected value of the pressure sensor and a preset value, specifically:
When the difference between the detected value of the pressure sensor and the preset value is within the standard range, it indicates that the pressure of the heat exchange tube 102 received by the first detection scraper ring 2013 and the second detection scraper ring 2023 is within the normal range, and the vibration of the heat exchange tube 102 does not affect the normal operation of heat exchange.
When the difference between the detection value of the pressure sensor and the preset value exceeds the standard range, the fact that the pressure of the first detection scraping ring 2013 and the second detection scraping ring 2023 is larger by the heat exchange tube 102 and the vibration amplitude of the heat exchange tube 102 is larger is indicated, in order to solve the problem, the controller controls the first electric control telescopic rod 301 to stretch, in the process, the first electric control telescopic rod 301 pushes the lower baffle plate 202 located close to the first tube plate 105 to move together and move towards the direction close to the second electric control telescopic rod 401, so that the position of the lower baffle plate 202 on the heat exchange tube 102 is adjusted, meanwhile, the controller controls the second electric control telescopic rod 401 to stretch, the second electric control telescopic rod 401 pushes the upper baffle plate 201 located close to the second tube plate 106 to move together and move towards the direction close to the first electric control telescopic rod 301, so that the position of the upper baffle plate 201 on the heat exchange tube 102 is adjusted, the distance between the upper baffle plate 201 and the lower baffle plate 202 located at the middle position is shortened through the cooperation of the first electric control telescopic rod 301 and the second electric control telescopic rod 401, the upper baffle plate 201 and the lower baffle plate 202 are matched with the lower baffle plate 202, the heat exchange tube is prevented from being damaged by the vibration force of the heat exchange tube 102, and the vibration deformation of the heat exchange tube 102 is avoided when the upper baffle plate and the lower baffle plate is matched with the lower baffle plate 102, and the vibration force of the heat exchange tube is prevented.
In the heat exchange process, the flow of the fluid in the heat exchange tube 102 can be judged through the vibration amplitude of the heat exchange tube 102, so that the heat exchange effect of the fluid in the heat exchange tube 102 is judged, the detection value of the pressure sensor is called as a preset value through setting the vibration amplitude of the heat exchange tube 102 in the normal heat exchange process, and if the detection value of the pressure sensor exceeds or is smaller than the preset value, the heat exchange tube 102 cannot achieve sufficient heat exchange at the moment, and in order to improve the heat exchange effect, the following is specifically:
If the detection value of the pressure sensor is smaller than the preset value, the fact that the flow of the fluid inside the heat exchange tube 102 is too small at this moment, and the vibration amplitude of the heat exchange tube 102 is small, at this moment, the heat exchange tube 102 cannot achieve sufficient heat exchange, but in order to improve the heat transfer effect, the controller controls the first electric control telescopic rod 301 to stretch, the first electric control telescopic rod 301 pushes the lower baffle plate 202 located close to the first tube plate 105 to move together and move towards the direction close to the second electric control telescopic rod 401, meanwhile, the controller controls the second electric control telescopic rod 401 to stretch, the second electric control telescopic rod 401 pushes the upper baffle plate 201 located close to the second tube plate 106 to move together and move towards the direction close to the first electric control telescopic rod 301, the distance between the upper baffle plate 201 and the lower baffle plate 202 at the middle position is shortened, and therefore the upper baffle plate 201 and the lower baffle plate 202 are uniformly distributed inside the shell 101, in the process, fluid inside the shell 101 is enabled to periodically change the flow direction under the combined action of the upper baffle plate 201 and the lower baffle plate 202, the fluid is forced to flow in a specified baffling distance for multiple times, the degree of fluid inside the shell 101 is increased, the effective baffling efficiency is improved, the heat exchange dead zone is greatly reduced, and the heat exchange area is remarkably reduced.
When the detection value of the pressure sensor exceeds the preset value, the fact that the flow of the fluid in the heat exchange tube 102 is overlarge at the moment is indicated, the vibration amplitude of the heat exchange tube 102 is enlarged under the action of fluid impact, the heat exchange tube 102 cannot achieve sufficient heat exchange at the moment, but in order to improve the heat transfer effect, the controller controls the first electric control telescopic rod 301 to shrink, the first electric control telescopic rod 301 pulls the lower baffle plate 202 located close to the first tube plate 105 to move together and move towards the direction away from the second electric control telescopic rod 401, meanwhile, the controller controls the second electric control telescopic rod 401 to shrink, the second electric control telescopic rod 401 pulls the upper baffle plate 201 located close to the second tube plate 106 to move together and move towards the direction away from the first electric control telescopic rod 301, the distance between the upper baffle plate 201 and the lower baffle plate 202 at the middle position is increased, so that the turbulence degree of the fluid in the shell 101 is reduced, the heat exchange residence time is shortened, the heat exchange efficiency is improved, the impact force of the fluid in the shell 101 on the heat exchange tube 102 is reduced, and the service life of the heat exchange tube 102 is prolonged.
Because long-time use, the surface of heat exchange tube 102 or the inner wall of casing 101 is attached with dirt easily, can't in time clear up, and the too much dirt can influence the heat transfer effect, causes heat exchange inefficiency, in order to solve this problem, specifically:
In the initial state, the fluid enters the interior of the housing 101 from the heat flow inlet 109, moves along the length direction of the housing 101 and is discharged from the heat flow outlet 110, and under the action of the fluid in the interior of the housing 101, the first spring 303 is in a stretched state, and the second spring 403 is in a compressed state.
When cleaning is needed, the controller firstly controls the first electric control telescopic rod 301 to extend, and simultaneously controls the second electric control telescopic rod 401 to shrink, so that the upper baffle plate 201 and the lower baffle plate 202 which are positioned at the middle positions move in the same direction on the heat exchange tube 102 and move towards the direction close to the second tube plate 106, in the process, dirt on the surface of the heat exchange tube 102 is scraped and cleaned through the first detection scraping ring 2013 and the first conical scraping ring 2012 on the upper baffle plate 201, dirt on the surface of the heat exchange tube 102 is scraped and cleaned through the second detection scraping ring 2023 and the second conical scraping ring 2022 on the lower baffle plate 202, and meanwhile, dirt on the inner wall of the shell 101 is scraped and cleaned through the upper baffle plate 201 and the lower baffle plate 202.
Under the action of the second electric control telescopic rod 401, the second electric control telescopic rod 401 drives the upper baffle plate 201 to squeeze the lower baffle plate 202 on the second installation rod 402, and at the moment, the second spring 403 is compressed again, so that the lower baffle plate 202 on the second installation rod 402 scrapes off dirt on the surface of the heat exchange tube 102 and the inner wall of the shell 101.
Then the controller controls the first electric control telescopic rod 301 to shrink, and simultaneously controls the second electric control telescopic rod 401 to stretch, so that the upper baffle 201 and the lower baffle 202 which are positioned at the middle positions move on the heat exchange tube 102 towards the direction away from the second tube plate 106, and meanwhile, dirt on the surface of the heat exchange tube 102 is scraped and cleaned through the first detection scraping ring 2013 and the first conical scraping ring 2012 on the upper baffle 201, dirt on the surface of the heat exchange tube 102 is scraped and cleaned through the second detection scraping ring 2023 and the second conical scraping ring 2022 on the lower baffle 202, and meanwhile, dirt on the inner wall of the shell 101 is scraped and cleaned through the upper baffle 201 and the lower baffle 202.
Under the action of the first electric control telescopic rod 301, the first electric control telescopic rod 301 drives the lower baffle plate 202 to squeeze the upper baffle plate 201 on the first mounting rod 302, and at the moment, the first spring 303 is converted into a compressed state from a stretched state, and in the process, dirt on the surface of the heat exchange tube 102 and dirt on the inner wall of the shell 101 are scraped and cleaned by the upper baffle plate 201 on the first mounting rod 302.
The first electric control telescopic rod 301 and the second electric control telescopic rod 401 are matched, so that dirt attached to the surface of the heat exchange tube 102 or the inner wall of the shell 101 is cleaned by the upper baffle 201 and the lower baffle 202, and the heat exchange effect is prevented from being influenced by excessive dirt, so that the heat exchange efficiency is low.
When the fluid in the shell 101 is discharged, the first spring 303 is restored to the initial state from the tensile state under the action of the fluid, the second spring 403 is restored to the initial state from the compressed state, and in the process, the upper baffle 201 on the first mounting rod 302 and the lower baffle 202 on the second mounting rod 402 are respectively under the action of the first spring 303 and the second spring 403 to scrape and clean dirt on the surface of the heat exchange tube 102 and the inner wall of the shell 101 again.
The heat exchange method of the heat exchanger with the turbulent flow structure comprises the following specific steps:
S1: firstly, hot fluid and cold fluid are respectively introduced into a shell 101 and a heat exchange tube 102 in a heat exchange assembly 1, heat transfer can occur between the two fluids in a flowing state of the two fluids, and the fluid in the heat exchange tube 102 can enhance the turbulence effect and improve the heat transfer efficiency under the action of a triangular fin 1021;
S2: then, according to different conditions of fluid in the heat exchange tube 102, the positions of the upper baffle 201 and the lower baffle 202 in the heat exchange assembly 2 are adjusted by matching the first adjusting assembly 3 with the second adjusting assembly 4, so that the direction and the speed of the fluid in the shell 101 are changed, and the heat exchange strength and efficiency are improved;
S3: finally, the first adjusting component 3 and the second adjusting component 4 are matched, so that the upper baffle 201 and the lower baffle 202 reciprocate on the heat exchange tube 102, dirt on the surface of the heat exchange tube 102 or the inner wall of the shell 101 is cleaned, and the reduction of heat exchange efficiency is avoided.
The invention discloses an application of a heat exchanger with a turbulent flow structure in heat exchange equipment, which is particularly applied to realizing heat transfer between materials between two or more fluids with different temperatures, so that heat is transferred from fluid with higher temperature to fluid with lower temperature, thereby realizing heat exchange, enabling the temperature of the fluid to reach the index specified by a flow path, and improving the heat transfer effect.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. Heat exchanger with vortex structure, including heat exchange assembly (1), heat exchange assembly (1) include casing (101) and heat exchange tube (102), its characterized in that: a baffle assembly (2) is arranged in the shell (101), and a first adjusting assembly (3) and a second adjusting assembly (4) are respectively arranged at two ends of the baffle assembly (2);
The inside of the heat exchange tube (102) is provided with a turbulence structure, the turbulence structure comprises triangular fins (1021), the number of the triangular fins (1021) is multiple, and the triangular fins (1021) are annularly arranged on the inner wall of the heat exchange tube (102);
The baffle assembly (2) comprises an upper baffle (201) and a lower baffle (202), a first detection scraping ring (2013) is arranged on one side of the upper baffle (201), and a second detection scraping ring (2023) is arranged on one side of the lower baffle (202);
the first detection scraping ring (2013) and the second detection scraping ring (2023) are respectively provided with a pressure sensor.
2. A heat exchanger with turbulent flow structure according to claim 1, wherein: the number of the turbulence structures is multiple, the turbulence structures are linearly arranged in the heat exchange tube (102), and the surfaces of the triangular fins (1021) are provided with circular holes.
3. A heat exchanger with turbulent flow structure according to claim 1, wherein: a first round hole (2011) is formed in the position, connected with the upper baffle plate (201), of the heat exchange tube (102), a first conical scraping ring (2012) is arranged in the first round hole (2011), and the heat exchange tube (102) penetrates through the first detection scraping ring (2013) and extends to the outer part of the upper baffle plate (201);
The heat exchange tube (102) is connected with the lower baffle plate (202) and provided with a second round hole (2021), a second conical scraping ring (2022) is arranged in the second round hole (2021), and the heat exchange tube (102) penetrates through the second detection scraping ring (2023) and extends to the outer part of the lower baffle plate (202).
4. A heat exchanger with turbulent flow structure according to claim 1, wherein: one end of the shell (101) is provided with a first end cover (103), one end of the shell (101) far away from the first end cover (103) is provided with a second end cover (104), and a support (111) is arranged below the shell (101);
The surface of first end cover (103) is provided with cold flow import (107), the surface of second end cover (104) is provided with cold flow discharge (108), the surface of casing (101) is provided with hot flow import (109), the one end that hot flow import (109) was kept away from to casing (101) is provided with hot flow discharge (110).
5. A heat exchanger with turbulent flow structure according to claim 1, wherein: the heat exchange tube comprises a shell (101), wherein a first tube plate (105) and a second tube plate (106) are arranged in the shell, the first tube plate (105) and the second tube plate (106) are respectively arranged at two ends of the heat exchange tube (102), fixing holes are formed in the surfaces of the first tube plate (105) and the second tube plate (106), and the fixing holes are matched with the heat exchange tube (102);
The number of the upper baffle plates (201) is two, the number of the lower baffle plates (202) is two, and the upper baffle plates (201) and the lower baffle plates (202) are arranged between the first tube plate (105) and the second tube plate (106) in a crossing way.
6. A heat exchanger with turbulent flow structure according to claim 5, wherein: the first adjusting assembly (3) comprises a first electric control telescopic rod (301), the first electric control telescopic rod (301) is arranged at one end of the first tube plate (105), a first mounting rod (302) is arranged above the first electric control telescopic rod (301), and a first spring (303) is arranged on the surface of the first mounting rod (302);
The first mounting rod (302) movably penetrates through the upper baffle plate (201) close to the first tube plate (105), and an output shaft of the first electric control telescopic rod (301) is connected with the lower baffle plate (202) close to one side of the first tube plate (105).
7. A heat exchanger with turbulent flow structure according to claim 5, wherein: the second adjusting assembly (4) comprises a second electric control telescopic rod (401), the second electric control telescopic rod (401) is arranged at one end of the second tube plate (106), a second mounting rod (402) is arranged below the second electric control telescopic rod (401), and a second spring (403) is arranged on the surface of the second mounting rod (402);
the second installation rod (402) movably penetrates through the lower baffle plate (202) close to the second tube plate (106), and an output shaft of the second electric control telescopic rod (401) is connected with the upper baffle plate (201) close to one side of the second tube plate (106).
8. A heat exchange method of a heat exchanger with a turbulent flow structure, the method being realized by using a heat exchanger with a turbulent flow structure as claimed in claim 1, characterized in that: the specific heat exchange method comprises the following steps:
S1: firstly, respectively introducing hot fluid and cold fluid into a shell (101) and a heat exchange tube (102) in a heat exchange assembly (1), wherein heat transfer can occur between the two fluids in a flowing state of the two fluids, and under the action of a triangular fin (1021), the fluid in the heat exchange tube (102) enhances the turbulence effect, so that the heat transfer efficiency is improved;
S2: then according to different conditions of fluid in the heat exchange tube (102), the positions of an upper baffle plate (201) and a lower baffle plate (202) in the heat exchange assembly (2) are adjusted by matching the first adjusting assembly (3) with the second adjusting assembly (4), so that the direction and the speed of the fluid in the shell (101) are changed, and the heat exchange strength and efficiency are improved;
S3: finally, the upper baffle plate (201) and the lower baffle plate (202) are made to reciprocate on the heat exchange tube (102) through the cooperation of the first adjusting component (3) and the second adjusting component (4), so that dirt on the surface of the heat exchange tube (102) or the inner wall of the shell (101) is cleaned, and the reduction of heat exchange efficiency is avoided.
9. Use of a heat exchanger with turbulence structures according to any of claims 1-7 in a heat exchange device.
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| CN202411481000.8A CN118999201A (en) | 2024-10-23 | 2024-10-23 | Heat exchanger with turbulent flow structure, heat exchange method and application of heat exchanger in heat exchange equipment |
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| CN202411481000.8A CN118999201A (en) | 2024-10-23 | 2024-10-23 | Heat exchanger with turbulent flow structure, heat exchange method and application of heat exchanger in heat exchange equipment |
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