CN118816601B - A heat exchange device for cold recovery in low-temperature methanol washing section - Google Patents
A heat exchange device for cold recovery in low-temperature methanol washing section Download PDFInfo
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- CN118816601B CN118816601B CN202411318389.4A CN202411318389A CN118816601B CN 118816601 B CN118816601 B CN 118816601B CN 202411318389 A CN202411318389 A CN 202411318389A CN 118816601 B CN118816601 B CN 118816601B
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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
- F28D11/00—Heat-exchange apparatus employing moving conduits
- F28D11/02—Heat-exchange apparatus employing moving conduits the movement being rotary, e.g. performed by a drum or roller
- F28D11/04—Heat-exchange apparatus employing moving conduits the movement being rotary, e.g. performed by a drum or roller performed by a tube or a bundle of tubes
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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
- F28F11/00—Arrangements for sealing leaky tubes and conduits
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- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
本发明涉及换热设备技术领域，特别是一种用于低温甲醇洗工段冷量回收的换热设备，包括，外护壳，包括换热框、呈对称固设在换热框两侧的斗部和固设在斗部小口径一端的输气盒；换热机构，包括换热组件、链条、第一电机和软管，多个换热组件沿竖直方向阵列设置在换热框内部，换热组件包括一个主换热管、沿水平方向阵列设置在主换热管一侧的两个从换热管和呈对称设置在主换热管两端的安装板；以及，固设在换热框一外侧壁上的调节机构，包括轴线沿竖直方向布置的气筒和设置在气筒内部的橡胶半圆柱，该换热设备可以根据常温氮气的温度进行换热接触面积的调整，提高换热的效果，同时本设备还能控制常温氮气流通的流速，避免换热之后的温度阈值较大。
The present invention relates to the technical field of heat exchange equipment, in particular to a heat exchange equipment for cold recovery in a low-temperature methanol washing section, comprising an outer protective shell, including a heat exchange frame, buckets symmetrically fixed on both sides of the heat exchange frame and a gas transmission box fixed at one end of the bucket with a small diameter; a heat exchange mechanism, including a heat exchange component, a chain, a first motor and a hose, a plurality of heat exchange components are arranged in an array in a vertical direction inside the heat exchange frame, the heat exchange component includes a main heat exchange tube, two slave heat exchange tubes arranged in an array in a horizontal direction on one side of the main heat exchange tube and mounting plates symmetrically arranged at both ends of the main heat exchange tube; and an adjustment mechanism fixed on an outer side wall of the heat exchange frame, comprising an air cylinder with an axis arranged in a vertical direction and a rubber semi-cylinder arranged inside the air cylinder. The heat exchange equipment can adjust the heat exchange contact area according to the temperature of normal temperature nitrogen to improve the heat exchange effect. At the same time, the equipment can also control the flow rate of normal temperature nitrogen to avoid a large temperature threshold after heat exchange.
Description
Technical Field
The invention relates to the technical field of heat exchange equipment, in particular to heat exchange equipment for cold recovery in a low-temperature methanol washing section.
Background
In the production process of low-temperature methanol washing, the stripping nitrogen of the low-temperature methanol washing hydrogen sulfide concentration tower consists of two parts, wherein one part of the normal-temperature low-pressure nitrogen from a pipe network exchanges heat with flash gas through a flash gas heat exchanger, the temperature is reduced to 4 ℃ and then the other part of the normal-temperature nitrogen from a liquid nitrogen washing device is converged to be used as the stripping nitrogen of the low-temperature methanol washing hydrogen sulfide concentration tower to enter the tower for stripping, but the nitrogen temperature sent from the liquid nitrogen washing device is higher, so that the methanol-rich temperature in the tower is raised back, the temperature of the whole low-temperature methanol washing system is raised back, the loss of low-temperature methanol washing cold in the operation process is overlarge, and the operation of a subsequent device is influenced when serious, so that the cold recovery and energy saving system of the prior publication CN 219607812U-a low-temperature methanol washing section is disclosed, but the system still has certain defects in practical use:
1. When the existing cold energy recovery and energy saving system is used, effective and energy-saving heat exchange cannot be performed, the temperature of the entering normal-temperature nitrogen is different, and if the heat exchange is performed by adopting nitrogen at 4 ℃ all the time, the original normal-temperature nitrogen temperature is difficult to reach a preset cooling effect, and when partial staff face the problem, the introduced low-temperature nitrogen is reduced, so that the energy consumption is increased;
2. When the existing cold energy recovery and energy saving system is used, the flow rate of the input normal-temperature nitrogen cannot be controlled, and because the temperature of the normal-temperature nitrogen is different, the fixed low-temperature nitrogen is input, so that the change of the threshold value of the normal-temperature nitrogen after heat exchange is larger, and a certain influence is brought to the subsequent production process;
Accordingly, there is a need for improvements in the art to address the above-described problems.
Disclosure of Invention
This section is intended to outline some aspects of embodiments of the application and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section as well as in the description of the application and in the title of the application, which may not be used to limit the scope of the application.
In view of the problem that the existing cold energy recovery and energy saving system cannot perform effective and energy-saving heat exchange, the heat exchange equipment for cold energy recovery in the low-temperature methanol washing section is provided.
In order to solve the technical problems, the invention provides the following technical scheme: the heat exchange equipment for cold recovery in the low-temperature methanol washing section comprises an outer protective shell, a heat exchange frame, bucket parts symmetrically and fixedly arranged at two sides of the heat exchange frame, and a gas transmission box fixedly arranged at one small-caliber end of the bucket part; the heat exchange mechanism comprises a heat exchange assembly, a chain, a first motor and a hose, wherein the plurality of heat exchange assemblies are arranged inside a heat exchange frame along a vertical direction array, the heat exchange assembly comprises a main heat exchange tube, two auxiliary heat exchange tubes arranged on one side of the main heat exchange tube along a horizontal direction array and mounting plates symmetrically arranged on two ends of the main heat exchange tube, a plurality of air guide tubes are fixedly arranged on the side wall of the main heat exchange tube along an axial direction array, the free ends of the air guide tubes penetrate through the adjacent auxiliary heat exchange tubes and extend into the other auxiliary heat exchange tube, a plurality of air outlet grooves are circumferentially formed in the side wall of the air guide tube in the auxiliary heat exchange tube adjacent to the main heat exchange tube, an air inlet tube coaxial with the main heat exchange tube is fixedly arranged on one side surface of one mounting plate, an air inlet tube coaxial with the main heat exchange tube is fixedly arranged on one side surface of the other mounting plate, the air inlet tube is communicated with the inside of the main heat exchange tube, a plurality of tooth wheel discs are coaxially fixedly arranged on one end of the rotating tube extending to the outer side of the heat exchange frame, a plurality of tooth wheel discs in the plurality of heat exchange assemblies are transmitted through the same chain, a plurality of tooth wheel discs in the same end discs are fixedly arranged on one end face of the first motor at the end face of the most bottom, a first end face of the tooth wheel disc is fixedly arranged on the side wall of the first connecting tube is far away from the first connecting tube, and is fixedly connected with the first connecting tube, and far away from the first connecting tube; and the adjusting mechanism is fixedly arranged on the outer side wall of the heat exchange frame and comprises an air cylinder with an axis arranged along the vertical direction and a rubber semi-cylinder arranged in the air cylinder.
The beneficial effects of the invention are as follows: when the heat exchange device is used, low-temperature nitrogen is conveyed from one gas conveying box to the other gas conveying box, normal-temperature nitrogen enters from the adjusting mechanism and exchanges heat in the heat exchange assembly, the synchronous rotation of the gear plates can be achieved through the work of the first motor and under the cooperation of the chain, because the gear plates, the mounting plate and the main heat exchange tube are fixedly connected, when the gear plates drive the whole heat exchange assembly to rotate by taking the main heat exchange tube as a shaft, the two follow heat exchange tubes in the same heat exchange assembly can conduct angle adjustment in the vertical direction, because the whole normal-temperature nitrogen flows through the main heat exchange tube and the two follow heat exchange tubes, the adjustment of the contact area of the low-temperature nitrogen and the follow heat exchange tube can be adjusted through the adjustment of the angle of the follow heat exchange tube in the vertical direction, so the adjustment of the heat exchange efficiency can be achieved, the adjustment of the heat exchange efficiency can be achieved according to the input normal-temperature nitrogen temperature, the effective heat exchange can be achieved on the premise of saving energy, and the whole practicality is good.
As a preferable scheme of the heat exchange equipment for cold recovery in the low-temperature methanol washing section, the invention comprises the following steps: the closed end of the gas transmission box is fixedly connected with a low-temperature gas pipe.
As a preferable scheme of the heat exchange equipment for cold recovery in the low-temperature methanol washing section, the invention comprises the following steps: an outer side wall of the heat exchange frame is fixedly provided with a gas collecting box, a plurality of second connecting pipes are communicated with the inside of the same gas collecting box, and an air outlet pipe is fixedly connected to the outer side wall of the gas collecting box.
As a preferable scheme of the heat exchange equipment for cold recovery in the low-temperature methanol washing section, the invention comprises the following steps: the side wall of the first rotating shaft is fixedly provided with a first sealing ring along the circumferential direction, the side part of the heat exchange frame is provided with a first sealing groove for clearance fit of the first sealing ring, and the outer side wall of the first sealing ring is provided with a second oil sealing groove along the circumferential direction.
In view of the problem that the threshold value of the normal-temperature nitrogen temperature after heat exchange is changed greatly in the conventional cold energy recovery energy-saving system, the heat exchange equipment for cold energy recovery in the low-temperature methanol washing section is further preferably improved, wherein: a linkage column is fixedly arranged on the diameter surface of the rubber semi-cylinder along the axial direction, a gas distribution box communicated with the inside of the gas cylinder is fixedly arranged on one side wall of the gas cylinder along the axial direction, and a mounting frame fixedly connected with the outer side wall of the heat exchange frame through a bolt is fixedly arranged on the outer side wall of the free end of the gas distribution box; the plurality of air inlet pipes are all positioned on the inner side of the same air distribution box, the communication area of the air distribution box and the air cylinder is completely projected on the rubber semi-cylinder along the radial line direction of the air cylinder, the upper end of the rubber semi-cylinder is propped against the inner top wall of the air cylinder, meanwhile, the distance between the lower end of the rubber semi-cylinder and the inner bottom wall of the air cylinder is n, and n is more than or equal to 100mm.
As a preferable scheme of the heat exchange equipment for cold recovery in the low-temperature methanol washing section, the invention comprises the following steps: the upper end of the linkage column is fixedly provided with a second rotating shaft, the upper end of the second rotating shaft is slidably inserted through the air cylinder to be embedded in the output end of the second motor, and the second motor is fixedly connected to the top surface of the air cylinder; the lower end of the inflator is fixedly connected with a normal temperature air pipe.
The invention has the following beneficial effects: when the heat exchange device is used, the second rotating shaft can drive the rubber semi-cylinder to rotate in the air cylinder by taking the axis of the air cylinder as the shaft through the work of the second motor, because the communication area of the air distribution box and the air cylinder is completely projected on the rubber semi-cylinder along the radial direction of the air cylinder, the change of the amount of normal-temperature nitrogen entering the air distribution box can be realized in the rotating process of the rubber semi-cylinder, the change of the flow rate of the normal-temperature nitrogen entering the heat exchange assembly is realized under the condition that the inflow of the normal-temperature air pipe is kept unchanged, the heat exchange time is changed, and the change of the temperature threshold of the nitrogen after heat exchange is further ensured to be smaller.
As a preferable scheme of the heat exchange equipment for cold recovery in the low-temperature methanol washing section, the invention comprises the following steps: the second sealing ring is fixedly arranged on the outer side wall of the second rotating shaft along the circumferential direction, the second sealing groove for clearance fit of the second sealing ring is formed in the inflator, and the third oil sealing groove is formed in the side wall of the second sealing ring along the circumferential direction.
As a preferable scheme of the heat exchange equipment for cold recovery in the low-temperature methanol washing section, the invention comprises the following steps: a U-shaped plate is fixedly arranged on one side surface of the mounting plate, which is close to the secondary heat exchange tube, the opening end of the U-shaped plate is fixedly connected to the side wall of the main heat exchange tube, rectangular blocks are symmetrically and fixedly arranged at two ends of the secondary heat exchange tube, and the rectangular blocks are in clearance fit in the U-shaped plate; two rectangular blocks at the same end of the secondary heat exchange tube are sleeved on the same guide rod in a sliding manner, two ends of the guide rod are respectively and fixedly connected to the U-shaped plate and the primary heat exchange tube, and springs are sleeved on the guide rods on two sides of one rectangular block close to the primary heat exchange tube in a sliding manner.
As a preferable scheme of the heat exchange equipment for cold recovery in the low-temperature methanol washing section, the invention comprises the following steps: the sealing sleeve is sleeved on the outer side wall of the air duct at the contact position of the heat exchange tube in a sliding manner, extension pieces respectively attached to the inner wall and the outer wall of the heat exchange tube are fixedly arranged on the outer side walls of the two ends of the sealing sleeve, and a first oil seal groove is formed in the inner wall of the sealing sleeve along the circumferential direction.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art. Wherein:
FIG. 1 is a schematic diagram of the overall structure of a heat exchange device for cold recovery in a low temperature methanol washing section.
Fig. 2 is a rear right side view of the structure of fig. 1 in accordance with the present invention.
Fig. 3 is a vertical cross-sectional view of the structure of fig. 1 in the direction of cryogenic nitrogen flow in accordance with the present invention.
Fig. 4 is a vertical cross-sectional view of the structure of fig. 1 in the direction of the main heat exchange tube axis of the present invention.
Fig. 5 is a horizontal cross-sectional view of the structure of fig. 1 in the direction of cryogenic nitrogen flow in accordance with the present invention.
Fig. 6 is a schematic view of the internal structure of the outer casing of the structure of fig. 1 according to the present invention.
Fig. 7 is a schematic diagram of the overall structure of the heat exchange mechanism in the present invention.
Fig. 8 is a schematic diagram of the overall structure of the heat exchange assembly and the first motor of the present invention.
Fig. 9 is an exploded view of the structure of fig. 8 in accordance with the present invention.
Fig. 10 is an exploded view of the adjustment mechanism of the present invention.
Fig. 11 is a state adjustment diagram of the heat exchange assembly in the present invention.
Detailed Description
In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways other than those described herein, and persons skilled in the art will readily appreciate that the present invention is not limited to the specific embodiments disclosed below.
Further, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic can be included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
Further, in describing the embodiments of the present invention in detail, the cross-sectional view of the device structure is not partially enlarged to a general scale for convenience of description, and the schematic is only an example, which should not limit the scope of protection of the present invention. In addition, the three-dimensional dimensions of length, width and depth should be included in actual fabrication.
Example 1
Referring to fig. 1,2, 4, 6 and 7, a first embodiment of the present invention provides a heat exchange apparatus for cold recovery in a low-temperature methanol washing section, wherein in use, low-temperature nitrogen circulates in an outer protective shell 100, normal-temperature nitrogen circulates in a heat exchange mechanism 200, the two heat exchange frames 101 exchange heat, and two parts of nitrogen after heat exchange and removal are mixed and enter a tower as stripping nitrogen of a low-temperature methanol washing hydrogen sulfide concentration tower for stripping.
Specifically, the outer protective shell 100 comprises a heat exchange frame 101, bucket parts 102 symmetrically and fixedly arranged on two sides of the heat exchange frame 101, and a gas transmission box 103 fixedly arranged at one small-caliber end of the bucket parts 102, wherein the bucket parts 102 can play a role in gathering gas and improve the heat exchange effect, a low-temperature gas pipe 103a is fixedly connected to the closed end of the gas transmission box 103, one low-temperature gas pipe 103a is used for entering low-temperature nitrogen, and the other low-temperature gas pipe 103a is used for removing nitrogen after heat exchange; the heat exchange mechanism 200 comprises a heat exchange assembly 201, a chain 202, a first motor 203 and a hose 204, wherein a plurality of heat exchange assemblies 201 are arranged in the heat exchange frame 101 in an array manner along the vertical direction; and an adjusting mechanism 300 fixed on an outer side wall of the heat exchange frame 101, comprising an air cylinder 301 whose axis is arranged in a vertical direction and a rubber semi-cylinder 302 provided inside the air cylinder 301.
Referring to fig. 3, 5,7, 8 and 9 in detail, the heat exchange assembly 201 includes a main heat exchange tube 201a, two auxiliary heat exchange tubes 201b arranged on one side of the main heat exchange tube 201a along a horizontal direction and mounting plates 201c symmetrically arranged on two ends of the main heat exchange tube 201a, a plurality of air ducts 201a-1 are fixedly arranged on a side wall of the main heat exchange tube 201a along an axial direction in an array manner, free ends of the air ducts 201a-1 extend to another auxiliary heat exchange tube 201b through adjacent auxiliary heat exchange tubes 201b, a plurality of air outlet grooves 201a-2 are circumferentially arranged on a side wall of the air duct 201a-1 in the auxiliary heat exchange tube 201b adjacent to the main heat exchange tube 201a, the arrangement of the air outlet grooves 201a-2 and the arrangement of the free ends of the air ducts 201a-1 are in an opening manner, thereby realizing air circulation between the main heat exchange tube 201a and the two auxiliary heat exchange tubes 201b and air circulation between the two auxiliary heat exchange tubes 201b, an air inlet pipe 201e coaxial with the main heat exchange pipe 201a is fixedly arranged on one side surface of one mounting plate 201c, the air inlet pipe 201e is communicated with the inside of the main heat exchange pipe 201a so as to enable normal-temperature nitrogen to enter the main heat exchange pipe 201a through the air inlet pipe 201e, the air inlet pipe 201e is slidingly sleeved on the side wall of the heat exchange frame 101, a first connecting pipe 201b-4 is fixedly arranged on the side wall of one slave heat exchange pipe 201b far away from the main heat exchange pipe 201a in the same heat exchange assembly 201, the first connecting pipe 201b-4 is connected with a second connecting pipe on the inner side wall of the heat exchange frame 101 through a hose 204, a gas collecting box 104 is fixedly arranged on the outer side wall of the heat exchange frame 101 so as to enable gas in each heat exchange assembly 201 to enter the gas collecting box 104, a plurality of second connecting pipes are communicated with the inside of the same gas collecting box 104, and an air outlet pipe 104a is fixedly connected on the outer side wall of the gas collecting box 104, the gas outlet pipe 104a can realize the gas discharge in the gas collecting box 104;
When the heat exchange device is used, external normal-temperature nitrogen enters the main heat exchange pipes 201a of each heat exchange assembly 201 through the air inlet pipe 201e, the air in the main heat exchange pipes 201a can circulate in the two secondary heat exchange pipes 201b through the conveying of the air guide pipe 201a-1 and is finally discharged from the first connecting pipe 201b-4, and then the normal-temperature nitrogen after heat exchange in the plurality of heat exchange assemblies 201 is finally gathered into the gas gathering box 104 through the conveying of the hose 204 and the second connecting pipe and is discharged through the air outlet pipe 104a so as to facilitate subsequent operation.
Referring to fig. 1,4 and 7 in detail, a rotating column 201d coaxial with a main heat exchange tube 201a is fixedly arranged on one side surface of one mounting plate 201c, the rotating column 201d is slidably sleeved on the side wall of the heat exchange frame 101, a gear disc 201d-3 is coaxially fixedly arranged on one end of the rotating column 201d extending to the outer side of the heat exchange frame 101, a plurality of gear discs 201d-3 in a plurality of heat exchange assemblies 201 are driven by the same chain 202, a first rotating shaft 203a is fixedly arranged on one end surface of the gear disc 201d-3 positioned at the lowest position, the other end of the first rotating shaft 203a is embedded in the output end of the first motor 203, and the first motor 203 is fixedly connected to the outer side wall of the heat exchange frame 101;
When the heat exchange device is used, the first motor 203 works to drive one of the gear plates 201d-3 to rotate, and the plurality of heat exchange assemblies 201 can rotate by taking the main heat exchange tube 201a of the heat exchange assembly as an axis under the transmission of the chain 202, so that the angle adjustment of the secondary heat exchange tube 201b in the vertical direction is realized, as shown in fig. 11, the secondary heat exchange tube 201b is in a horizontal state, the thermal contact area is minimum at the moment, the secondary heat exchange tube 201b is rotated 45 degrees in the vertical direction, and the secondary heat exchange tube 201b is rotated 90 degrees in the vertical direction, and the thermal contact area is maximum at the moment.
Further, the first sealing ring 201d-1 is fixedly arranged on the side wall of the first rotating shaft 203a along the circumferential direction, meanwhile, the first sealing groove 101a for clearance fit of the first sealing ring 201d-1 is formed on the side part of the heat exchange frame 101, the arrangement can achieve the sealing performance of fit between the first rotating shaft 203a and the heat exchange frame 101, the second oil seal groove 201d-2 is formed on the outer side wall of the first sealing ring 201d-1 along the circumferential direction, and sealing oil is filled in the second oil seal groove 201d-2, so that the sealing effect is improved.
It should be noted that the device further includes a controller (not shown in the drawings) for controlling each electrical element in the device; in addition, in practical use, in order to meet the heat exchange amount requirement, a plurality of groups of heat exchange mechanisms 200 may be arranged in an array along the horizontal direction of the heat exchange frame 101.
Example 2
Referring to fig. 2, 4,5 and 10, this embodiment is based on the previous embodiment, except that the present embodiment is proposed in order to achieve control of the flow rate of nitrogen at normal temperature into the heat exchange assembly 201, thereby avoiding the problem of large variation of the gas temperature threshold after heat exchange.
Specifically, a radial surface of the rubber semi-cylinder 302 is fixedly provided with a linkage column 302a along an axial direction, one side wall of the air cylinder 301 is fixedly provided with an air distribution box 301a communicated with the inside of the air cylinder 301 along the axial direction, and the outer side wall of the free end of the air distribution box 301a is fixedly provided with a mounting frame 301a-1 fixedly connected with the outer side wall of the heat exchange frame 101 through bolts;
the plurality of air inlet pipes 201e are all positioned on the inner side of the same air distribution box 301a, the communication area of the air distribution box 301a and the air cylinder 301 is completely projected on the rubber semi-cylinder 302 along the radial direction of the air cylinder 301, the arrangement can realize the blocking effect of the rubber semi-cylinder 302 on the position of the air distribution box 301a, the upper end of the rubber semi-cylinder 302 is propped against the inner top wall of the air cylinder 301, meanwhile, the distance between the lower end of the rubber semi-cylinder 302 and the inner bottom wall of the air cylinder 301 is n, and n is more than or equal to 100mm, the arrangement can realize that the air entering the air cylinder 301 can effectively enter the air distribution box 301a, and the lower end of the air cylinder 301 is fixedly connected with the normal-temperature air pipe 301b so as to facilitate the entry of normal-temperature nitrogen;
the upper end of the linkage column 302a is fixedly provided with a second rotating shaft 302b-1, the upper end of the second rotating shaft 302b-1 is slidably inserted through the air cylinder 301 and is embedded in the output end of the second motor 302b, and the second motor 302b is fixedly connected to the top surface of the air cylinder 301;
When the device is used, the second rotating shaft 302b-1 can be used for driving the linkage column 302a to rotate through the work of the second motor 302b, so that the rubber semi-cylinder 302 rotates by taking the axis of the air cylinder 301 as the shaft, the area for blocking the position of the air distributing box 301a can be changed under the condition that the rubber semi-cylinder 302 rotates, and the change of the flow rate entering each heat exchange assembly 201 through the air distributing box 301a can be realized on the premise that the amount/time of the air input by the normal-temperature air pipe 301b is unchanged.
Further, a second sealing ring 302b-2 is fixedly arranged on the outer side wall of the second rotating shaft 302b-1 along the circumferential direction, a second sealing groove 301c for clearance fit of the second sealing ring 302b-2 is formed in the air cylinder 301, so that tightness between the second rotating shaft 302b-1 and the air cylinder 301 is achieved, a third oil seal groove 302b-3 is formed in the side wall of the second sealing ring 302b-2 along the circumferential direction, and sealing oil is filled in the third oil seal groove 302b-3, so that sealing effect is further improved.
Example 3
Referring to fig. 5 and 9, in order to make the space layout of the whole heat exchange assembly 201 more reasonable while improving the heat dissipation effect, the third embodiment of the present invention is based on any of the above embodiments, and the problem that the design size of the whole outer casing 100 is too large to occupy a large space and increase the production cost is avoided.
Specifically, a U-shaped plate 201c-1 is fixedly arranged on one side surface of the mounting plate 201c, which is close to the secondary heat exchange tube 201b, and the opening end of the U-shaped plate 201c-1 is fixedly connected to the side wall of the primary heat exchange tube 201a, rectangular blocks 201b-5 are symmetrically and fixedly arranged at two ends of the secondary heat exchange tube 201b, and the rectangular blocks 201b-5 are in clearance fit in the U-shaped plate 201c-1, so that limiting of the rectangular blocks 201b-5 is realized;
Two rectangular blocks 201b-5 at the same end of the secondary heat exchange tube 201b are sleeved on the same guide rod 201c-2 in a sliding manner so as to realize the limiting and guiding effects on the movement of the rectangular blocks 201b-5, two ends of the guide rod 201c-2 are respectively and fixedly connected to the U-shaped plate 201c-1 and the main heat exchange tube 201a, a spring 201c-3 is sleeved on the guide rod 201c-2 close to two sides of one rectangular block 201b-5 of the main heat exchange tube 201a in a sliding manner, and the spring 201c-3 can provide extrusion force for the rectangular blocks 201 b-5;
When the heat exchange assembly 201 is used, when the heat exchange assemblies 201 are adjusted in the vertical direction, the main heat exchange tube 201a in one heat exchange assembly 201 and the auxiliary heat exchange tube 201b in the other heat exchange assembly 201 are contacted and extruded, the rectangular block 201b-5 slides in the U-shaped plate 201c-1 under the extrusion action, and then the two auxiliary heat exchange tubes 201b in the same heat exchange assembly 201 are synchronously adjusted in a displacement mode under the action of the spring 201c-3, so that the adjustment of the heat exchange assemblies 201 can be realized on the premise of ensuring the circulation of low-temperature nitrogen.
Further, the sealing sleeve 201b-1 is sleeved on the outer side wall of the air duct 201a-1 at the contact position of the heat exchange tube 201b in a sliding manner, the sealing sleeve 201b-1 can achieve relative sliding between the air duct 201a-1 and the sealing sleeve 201b-1 while matching tightness between the air duct 201a-1 and the heat exchange tube 201b, extension pieces 201b-2 respectively attached to the inner wall and the outer wall of the heat exchange tube 201b are fixedly arranged on the outer side wall of the two ends of the sealing sleeve 201b-1, the extension pieces 201b-2 can achieve a limiting effect, in actual use, the extension pieces 201b-2 can be adhered to the outer side wall of the heat exchange tube 201b through an adhesive, firmness is improved, a first oil seal groove 201b-3 is formed in the inner wall of the sealing sleeve 201b-1 along the circumferential direction, and sealing oil is filled in the first oil seal groove 201b-3, so that sealing effect is improved.
In addition, the components not described in detail herein are prior art.
It is important to note that the construction and arrangement of the application as shown in the various exemplary embodiments is illustrative only. Although only a few embodiments have been described in detail in this disclosure, those skilled in the art who review this disclosure will readily appreciate that many modifications are possible (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, values of parameters (e.g., temperature, pressure, etc.), mounting arrangements, use of materials, colors, orientations, etc.) without materially departing from the novel teachings and advantages of the subject matter described in this application. For example, elements shown as integrally formed may be constructed of multiple parts or elements, the position of elements may be reversed or otherwise varied, and the nature or number of discrete elements or positions may be altered or varied. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present applications. Therefore, the application is not limited to the specific embodiments, but extends to various modifications that nevertheless fall within the scope of the appended claims.
Furthermore, in an effort to provide a concise description of the exemplary embodiments, all features of an actual implementation may not be described (i.e., those not associated with the best mode presently contemplated for carrying out the invention, or those not associated with practicing the invention).
It should be appreciated that in the development of any such actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort might be complex and time consuming, but would nevertheless be a routine undertaking of design, fabrication, and manufacture for those of ordinary skill having the benefit of this disclosure.
It should be noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present invention may be modified or substituted without departing from the spirit and scope of the technical solution of the present invention, which is intended to be covered in the scope of the claims of the present invention.
Claims (9)
1. A heat transfer equipment that is used for cold recovery of low temperature methanol washing workshop section which characterized in that: comprising the steps of (a) a step of,
The outer protective shell (100) comprises a heat exchange frame (101), bucket parts (102) symmetrically fixed on two sides of the heat exchange frame (101) and a gas transmission box (103) fixed on one small-caliber end of the bucket parts (102);
the heat exchange mechanism (200) comprises a heat exchange assembly (201), a chain (202), a first motor (203) and a hose (204), wherein a plurality of heat exchange assemblies (201) are arranged inside a heat exchange frame (101) in an array mode along the vertical direction, the heat exchange assembly (201) comprises a main heat exchange tube (201 a), two auxiliary heat exchange tubes (201 b) arranged on one side of the main heat exchange tube (201 a) in an array mode along the horizontal direction and mounting plates (201 c) symmetrically arranged at two ends of the main heat exchange tube (201 a), a plurality of air guide tubes (201 a-1) are fixedly arranged on the side wall of the main heat exchange tube (201 a) in an array mode along the axis direction, the free ends of the air guide tubes (201 a-1) penetrate through the adjacent auxiliary heat exchange tubes (201 b) to extend into the other auxiliary heat exchange tube (201 b), a plurality of air outlet grooves (201 a-2) are circumferentially formed in the side wall of the auxiliary heat exchange tube (201 a-1) adjacent to the main heat exchange tube (201 a), a side wall of one mounting plate (201 c) is fixedly provided with a mounting plate (201 d) coaxially arranged on one side face of the main heat exchange tube (201 a) and is fixedly connected with a heat exchange column (201 e) coaxially arranged on the other side wall of the main heat exchange tube (201 e) and the air inlet tube (201 e) in a rotating mode, the heat exchange column is fixedly connected with the other side of the main heat exchange column (201 e) and the main heat exchange column (201 e), a gear disc (201 d-3) is coaxially and fixedly arranged on one end of a rotating column (201 d) extending to the outer side of the heat exchange frame (101), a plurality of gear discs (201 d-3) in a plurality of heat exchange assemblies (201) are driven by the same chain (202), a first rotating shaft (203 a) is fixedly arranged on one end face of the gear disc (201 d-3) at the lowest position, the other end of the first rotating shaft (203 a) is embedded in the output end of the first motor (203), the first motor (203) is fixedly connected to the outer side wall of the heat exchange frame (101), a first connecting pipe (201 b-4) is fixedly arranged on the side wall of the same heat exchange assembly (201) away from the main heat exchange pipe (201 a), and the first connecting pipe (201 b-4) is connected with a second connecting pipe on the inner side wall of the heat exchange frame (101) through a hose (204); and
The adjusting mechanism (300) is fixedly arranged on one outer side wall of the heat exchange frame (101) and comprises an air cylinder (301) with an axis arranged along the vertical direction and a rubber semi-cylinder (302) arranged inside the air cylinder (301).
2. A heat exchange apparatus for cold recovery in a low temperature methanol wash section as claimed in claim 1, wherein: the closed end of the gas transmission box (103) is fixedly connected with a low-temperature gas pipe (103 a).
3. A heat exchange apparatus for cold recovery in a low temperature methanol wash section as claimed in claim 2, wherein: an air collecting box (104) is fixedly arranged on the outer side wall of the heat exchange frame (101), a plurality of second connecting pipes are communicated with the inside of the same air collecting box (104), and an air outlet pipe (104 a) is fixedly connected to the outer side wall of the air collecting box (104).
4. A heat exchange apparatus for cold recovery in a low temperature methanol wash section as claimed in claim 3, wherein: the side wall of the first rotating shaft (203 a) is fixedly provided with a first sealing ring (201 d-1) along the circumferential direction, meanwhile, the side part of the heat exchange frame (101) is provided with a first sealing groove (101 a) for clearance fit of the first sealing ring (201 d-1), and the outer side wall of the first sealing ring (201 d-1) is provided with a second oil sealing groove (201 d-2) along the circumferential direction.
5. A heat exchange apparatus for cold recovery in a low temperature methanol wash section as claimed in claim 1, wherein: a linkage column (302 a) is fixedly arranged on the diameter surface of the rubber semi-cylinder (302) along the axial direction, a gas distribution box (301 a) communicated with the inside of the gas cylinder (301) is fixedly arranged on one side wall of the gas cylinder (301) along the axial direction, and a mounting frame (301 a-1) fixedly connected with the outer side wall of the heat exchange frame (101) through a bolt is fixedly arranged on the outer side wall of the free end of the gas distribution box (301 a);
The air inlet pipes (201 e) are all located on the inner side of the same air distribution box (301 a), the communication area between the air distribution box (301 a) and the air cylinder (301) is completely projected on the rubber semi-cylinder (302) along the radial direction of the air cylinder (301), the upper end of the rubber semi-cylinder (302) is abutted against the inner top wall of the air cylinder (301), meanwhile, the distance between the lower end of the rubber semi-cylinder (302) and the inner bottom wall of the air cylinder (301) is n, and n is more than or equal to 100mm.
6. A heat exchange apparatus for cold recovery in a low temperature methanol wash section as recited in claim 5, wherein: the upper end of the linkage column (302 a) is fixedly provided with a second rotating shaft (302 b-1), the upper end of the second rotating shaft (302 b-1) is embedded in the output end of the second motor (302 b) in a sliding way through the air cylinder (301), and the second motor (302 b) is fixedly connected to the top surface of the air cylinder (301);
the lower end of the inflator (301) is fixedly connected with a normal temperature air pipe (301 b).
7. A heat exchange apparatus for cold recovery in a low temperature methanol wash section as recited in claim 6, wherein: the second sealing ring (302 b-2) is fixedly arranged on the outer side wall of the second rotating shaft (302 b-1) along the circumferential direction, a second sealing groove (301 c) for clearance fit of the second sealing ring (302 b-2) is formed in the air cylinder (301), and a third oil sealing groove (302 b-3) is formed in the side wall of the second sealing ring (302 b-2) along the circumferential direction.
8. A heat exchange apparatus for cold recovery in a low temperature methanol wash section as claimed in claim 1, 4 or 7, wherein: a U-shaped plate (201 c-1) is fixedly arranged on one side surface of the mounting plate (201 c) close to the secondary heat exchange tube (201 b), the opening end of the U-shaped plate (201 c-1) is fixedly connected to the side wall of the main heat exchange tube (201 a), rectangular blocks (201 b-5) are symmetrically and fixedly arranged at two ends of the secondary heat exchange tube (201 b), and the rectangular blocks (201 b-5) are in clearance fit in the U-shaped plate (201 c-1);
Two rectangular blocks (201 b-5) at the same end of the heat exchange tube (201 b) are sleeved on the same guide rod (201 c-2) in a sliding manner, two ends of the guide rod (201 c-2) are fixedly connected to the U-shaped plate (201 c-1) and the main heat exchange tube (201 a) respectively, and springs (201 c-3) are sleeved on the guide rods (201 c-2) at two sides of one rectangular block (201 b-5) close to the main heat exchange tube (201 a) in a sliding manner.
9. A heat exchange apparatus for cold recovery in a low temperature methanol wash section as recited in claim 8, wherein: the sealing sleeve (201 b-1) is sleeved on the outer side wall of the air duct (201 a-1) at the contact position of the heat exchange tube (201 b) in a sliding manner, extension pieces (201 b-2) respectively attached to the inner wall and the outer wall of the heat exchange tube (201 b) are fixedly arranged on the outer side walls of the two ends of the sealing sleeve (201 b-1), and a first oil seal groove (201 b-3) is formed in the inner wall of the sealing sleeve (201 b-1) along the circumferential direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411318389.4A CN118816601B (en) | 2024-09-20 | 2024-09-20 | A heat exchange device for cold recovery in low-temperature methanol washing section |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202411318389.4A CN118816601B (en) | 2024-09-20 | 2024-09-20 | A heat exchange device for cold recovery in low-temperature methanol washing section |
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| CN118816601A CN118816601A (en) | 2024-10-22 |
| CN118816601B true CN118816601B (en) | 2024-11-22 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2010229460A1 (en) * | 2009-03-27 | 2011-10-20 | Framo Engineering As | Subsea cooler |
| CN116772620A (en) * | 2023-07-11 | 2023-09-19 | 河北工程大学 | Water and smoke type heat exchanger with anti-scaling function |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6973009B2 (en) * | 2017-12-13 | 2021-11-24 | トヨタ自動車株式会社 | Stirring mechanism and manufacturing method of stirring mechanism |
| CN216716172U (en) * | 2021-12-23 | 2022-06-10 | 南京河西远大能源服务有限公司 | Steam heater |
| CN117268140A (en) * | 2023-10-16 | 2023-12-22 | 山东绿能工矿余热综合利用产业技术研究院有限公司 | A high-efficiency heat exchange device for direct utilization of mine return air waste heat |
| CN117537638B (en) * | 2023-12-29 | 2024-05-03 | 江苏科力普汽车部件有限公司 | Heat exchange fin and heat exchanger |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2010229460A1 (en) * | 2009-03-27 | 2011-10-20 | Framo Engineering As | Subsea cooler |
| CN116772620A (en) * | 2023-07-11 | 2023-09-19 | 河北工程大学 | Water and smoke type heat exchanger with anti-scaling function |
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| Publication number | Publication date |
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| CN118816601A (en) | 2024-10-22 |
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