CN100559077C - Sonic velocity temperature-reducing decompressing volume-increasing device - Google Patents
Sonic velocity temperature-reducing decompressing volume-increasing device Download PDFInfo
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- CN100559077C CN100559077C CNB2007101897781A CN200710189778A CN100559077C CN 100559077 C CN100559077 C CN 100559077C CN B2007101897781 A CNB2007101897781 A CN B2007101897781A CN 200710189778 A CN200710189778 A CN 200710189778A CN 100559077 C CN100559077 C CN 100559077C
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Abstract
It is made of a kind of sonic velocity temperature-reducing decompressing volume-increasing device disclosed by the invention speedup decompression section (1), vaporization mixer (2), water filling shower nozzle (3) and increase-volume decompression section (4), the interior caliber of described speedup decompression section is a convergent flaring structure, by changing pace of change that actual internal area makes actual internal area greater than the gathering way to reduce steam pressure of vapor volume, its heavy caliber end is connected with the mixer of vaporizing; The water filling shower nozzle that is arranged on the vaporization mixer adds the steam total measurement (volume) increase that its inside makes outflow with demineralized water with vaporific, jet attitude; Increase-volume decompression section is connected with the other end of vaporization mixer, and caliber is the flaring structure in it, by changing pace of change the gathering way to reduce steam pressure greater than vapor volume that actual internal area makes actual internal area.The present invention reduces steam working pressure (SWP) by changing circulation area, not only reaches the purpose of pressure and temperature reducing, and has increased the steam total measurement (volume) of bleeder.It is little to have volume, in light weight, simple installation.
Description
Technical field
The invention belongs to technical field of heat exchange, what relate generally to is a kind of sonic velocity temperature-reducing decompressing volume-increasing device.
Background technology
As everyone knows, high pressure superheater or saturated vapor by Steam Turbine or boiler produce can't directly directly be used by the terminal use because its pressure and temperature is too high, must carry out pressure and temperature reducing to it.Its effect of easing stress of existing reducing-and-cooling plant mainly relies on independent pressure-reducing valve to reduce pressure, and mixes the demineralized water desuperheat then, and package unit is partial installation, and floor space is big, the installation, maintenance inconvenience.Because the operation principle of traditional steam converter valve is to pass through expenditure and pressure, by changing orifice size, the kinetic energy of flow velocity and fluid is changed, cause the different pressure losses, thereby reach the purpose of decompression, reduce through steam flow behind the pressure-reducing valve like this, the energy loss of the pressure-reducing valve of flowing through is also wasted.
Summary of the invention
The objective of the invention is to propose a kind of sonic velocity temperature-reducing decompressing volume-increasing device.By changing circulation area, reduce steam working pressure (SWP).Not only reach the purpose of pressure and temperature reducing, and increased the steam total measurement (volume) of bleeder.It is little to have volume, in light weight, simple installation.
The present invention realizes that the technical scheme that above-mentioned purpose is taked is: it is made up of speedup decompression section, vaporization mixer, water filling shower nozzle and increase-volume decompression section, and the interior caliber of speedup decompression section is a convergent flaring structure, according to formula dA/A=(M
2-1) dv/v, by changing pace of change that actual internal area makes actual internal area greater than the gathering way to reduce steam pressure of vapor volume, its heavy caliber end is connected with the mixer of vaporizing under the supersonic speed situation; The water filling shower nozzle that is arranged on the vaporization mixer adds the steam total measurement (volume) increase that its inside makes outflow with demineralized water with vaporific, jet attitude; Increase-volume decompression section is connected with the other end of vaporization mixer, and caliber is the flaring structure in it, and by changing actual internal area, the pass of circulate among sectional area and stream pressure, speed is dA/A=((M
2-1)/KM
2) dp/p, the pace of change that makes actual internal area gathering way to reduce steam pressure greater than vapor volume.
The effect of the speedup of setting of the present invention decompression section is the change by actual internal area, and the pace of change that makes actual internal area gathers way greater than vapor volume, to reduce steam pressure.The effect of vaporization mixer is under the steam pressure after the reduction carbonated drink evenly to be mixed, and makes demineralized water be vaporizated into saturated vapor.It is provided with the water filling shower nozzle on the vaporization mixer, the water filling shower nozzle is under external force, demineralized water is added supersonic speed steam inside with vaporific, jet attitude, demineralized water absorbs steam heat, and intensification, vaporization and vapor mixing absorb because the part heat of steam is softened water, high temperature and high pressure steam temperature, pressure descend, become the saturated vapor under the same state, demineralized water is vaporizated into saturated vapor simultaneously, and the steam total measurement (volume) of bleeder increases.Increase-volume decompression section is the change by actual internal area, and the pace of change that makes actual internal area gathers way greater than vapor volume, to reduce steam pressure.
The present invention is according to the theory of two phase flow carbonated drink mixed heat transfer, correlation theory in conjunction with fields such as thermodynamics, hydrodynamics, Machine Designs, use physical laws such as continuity equation, energy equation, momentum theorem, thermodynamics the one or two law and derive a cover fundamental relation formula that is used for theoretical design, under design parameters such as pressure, cold water pressure, temperature before and after the given steam decompression, determine temperature reducing and pressure reducing system parameter and technological process, and the geometry and the size of selected basic parts, development have an energy saving and environment friendly special-purpose pressure and temperature reducing product.
By the adiabatic expansion technical finesse, make the following high temperature and high pressure steam of 1.2MPa be issued to supersonic speed flow velocity state at certain pressure, the conversion of steam kinetic energy and pressure energy takes place this moment, the part pressure energy is converted to kinetic energy, steam pressure drops to about 0.577～0.6 times of inlet pressure, on the certain pressure interface, add a certain amount of demineralized water with the jet attitude, (mass ratio be about quality of steam 8%～12%), utilize the heat energy (enthalpy) of steam itself, make steam mix compression with demineralized water, demineralized water vaporized fully becomes saturated vapor under certain state, because being softened water, the part heat of steam absorbs, the high temperature and high pressure steam temperature, pressure descends, become the saturated vapor under the same state, demineralized water is vaporizated into saturated vapor simultaneously, and the steam total measurement (volume) of bleeder increases, and steam flows out reducing-and-cooling plant along certain actual internal area.
The present invention's steam flow after having overcome traditional steam converter valve process pressure-reducing valve on the operation principle reduces the defective that energy loss wastes.By adding demineralized water, its mass flow can increase by 8%～12%, and its force value can descend 20～40%, and sonic velocity temperature-reducing decompressing volume-increasing device is a tubular equipment, and volume is little, and is in light weight, simple installation.Reconstruction project need not big moving existing pipeline, saves civil engineering costs.Exterior material is a common straightcarbon steel, and internal material is corrosion resistant special steel alloy, and service life is more than 15 years, dependable performance, and the working service operating cost is low.Have great energy-saving and environmental protection technology and economic worth.
Description of drawings
Accompanying drawing is a structural representation of the present invention
Among the figure: 1, speedup decompression section, 2, the vaporization mixer, 3, the water filling shower nozzle, 4, increase-volume decompression section.
The specific embodiment
In conjunction with the accompanying drawings, it is as follows to provide embodiments of the invention:
As shown in the figure: present embodiment is made of speedup decompression section 1, vaporization mixer 2, water filling shower nozzle 3 and increase-volume decompression section 4.Speedup decompression section 1 is a convergent flaring structure, can make steam reach the velocity of sound in convergent smallest cross-sectional place speed, and partly reach supersonic speed at flaring.Its heavy caliber end is fixedlyed connected with an end of vaporization mixer, and the internal diameter equalization of heavy caliber end internal diameter and vaporization mixer can make the steam pressure after the step-down keep stable.Water filling shower nozzle 3 is arranged on the vaporization mixer, and increase-volume decompression section is fixedlyed connected with the other end of vaporization mixer, and caliber is the flaring structure in it.During use, under the effect of steam pressure, speedup decompression section makes steam flow rate reach supersonic speed by changing circulation area, reaches the effect that reduces steam working pressure (SWP).On the vaporization mixer, water filling shower nozzle 3 is set, this adoptable commercially available prod of water filling shower nozzle such as finer atomization nozzle etc.Under external force, the water filling shower nozzle is that demineralized water is added supersonic speed steam inside with vaporific, jet attitude, demineralized water absorbs steam heat, intensification, vaporization and vapor mixing, absorb because the part heat of steam is softened water, high temperature and high pressure steam temperature, pressure descend, and become the saturated vapor under the same state, demineralized water is vaporizated into saturated vapor simultaneously, and the steam total measurement (volume) of bleeder increases.So not only reach the purpose of pressure and temperature reducing, and increased the steam total measurement (volume) of bleeder.
This equipment can be used in the little load heating, hot-water heating system of general civil buildings, and steam pressure all can satisfy customer requirements below 1.2MPa.
Claims (2)
1, a kind of sonic velocity temperature-reducing decompressing volume-increasing device, it is characterized in that: it is made of speedup decompression section (1), vaporization mixer (2), water filling shower nozzle (3) and increase-volume decompression section (4), the interior caliber of described speedup decompression section (1) is a convergent flaring structure, by changing pace of change that actual internal area makes actual internal area greater than the gathering way to reduce steam pressure of vapor volume, its heavy caliber end is connected with the mixer of vaporizing; The water filling shower nozzle that is arranged on the vaporization mixer adds the steam total measurement (volume) increase that its inside makes outflow with demineralized water with vaporific, jet attitude; Increase-volume decompression section is connected with the other end of vaporization mixer, and caliber is the flaring structure in it, by changing pace of change the gathering way to reduce steam pressure greater than vapor volume that actual internal area makes actual internal area.
2, sonic velocity temperature-reducing decompressing volume-increasing device according to claim 1 is characterized in that: the internal diameter equalization of the heavy caliber end internal diameter of described speedup decompression section (1) and vaporization mixer (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007101897781A CN100559077C (en) | 2007-10-15 | 2007-10-15 | Sonic velocity temperature-reducing decompressing volume-increasing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007101897781A CN100559077C (en) | 2007-10-15 | 2007-10-15 | Sonic velocity temperature-reducing decompressing volume-increasing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101144617A CN101144617A (en) | 2008-03-19 |
| CN100559077C true CN100559077C (en) | 2009-11-11 |
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ID=39207268
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007101897781A Expired - Fee Related CN100559077C (en) | 2007-10-15 | 2007-10-15 | Sonic velocity temperature-reducing decompressing volume-increasing device |
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| CN (1) | CN100559077C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111174019B (en) * | 2019-12-31 | 2021-10-08 | 浙江大学 | A device and method for coordinated regulation of steam pressure and temperature |
| CN114992419B (en) * | 2022-05-31 | 2023-09-05 | 中国船舶重工集团公司第七一九研究所 | Steam pressure-reducing and temperature-reducing device |
| CN120120553B (en) * | 2025-05-13 | 2025-08-08 | 福州和特新能源有限公司 | A large flow temperature and pressure reducer |
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2007
- 2007-10-15 CN CNB2007101897781A patent/CN100559077C/en not_active Expired - Fee Related
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| CN101144617A (en) | 2008-03-19 |
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20080319 Assignee: Luoyang Zhongmao Environmental Protection Equipment Co., Ltd. Assignor: Lanhai Industrial Co., Ltd., Luoyang City Contract record no.: 2014410000045 Denomination of invention: Nozzle structure of temperature and pressure reducing and capacity increasing device with variable sound speed Granted publication date: 20091111 License type: Common License Record date: 20140512 |
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| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091111 Termination date: 20181015 |
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| CF01 | Termination of patent right due to non-payment of annual fee |