CN101666567A - Liquid-reservoir type steam-liquid heat exchanging device and heat exchanging system using device - Google Patents
Liquid-reservoir type steam-liquid heat exchanging device and heat exchanging system using device Download PDFInfo
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- CN101666567A CN101666567A CN200910307870A CN200910307870A CN101666567A CN 101666567 A CN101666567 A CN 101666567A CN 200910307870 A CN200910307870 A CN 200910307870A CN 200910307870 A CN200910307870 A CN 200910307870A CN 101666567 A CN101666567 A CN 101666567A
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Abstract
The invention discloses a liquid-reservoir type steam-liquid heat exchanging device, which is characterized by comprising a circular cylinder; the cylinder is internally provided with two baffles which divide the cylinder into three cavities, namely, a gas inlet cavity, a heat exchanging cavity and a gas outlet cavity, wherein the cavity between the two baffles in the cylinder body is the heat exchanging cavity; a heat exchanging pipe group is communicated with the gas inlet cavity and the gas outlet cavity; the gas inlet cavity is provided with a gas inlet connected with an exhaust end of anevaporator; the gas outlet cavity is provided with a gas outlet connected with a gas inlet end of a compressor; and the heat exchanging cavity is provided with an inlet connected with a liquid outletof an evaporating condenser and an outlet connected with a liquid inlet of a throttle valve at the front of an evaporator inlet. The liquid-reservoir type steam-liquid heat exchanging device has simple structure, not only uses conveniently, but also is safe and reliable, simultaneously and effectively utilizes heat exchange between a liquid state and a steam state of a refrigerant in a low-temperature overlaying refrigerating cycle, and achieves the effects of effectively improving gas-absorbing working condition of the compressor and improving refrigerating capacity.
Description
Technical field
The present invention relates to the vapour-liquid heat-exchange device of a kind of liquid storage type in the cooling cycle system, relate in particular to the ultralow temperature cascade refrigeration circulatory system a kind of liquid-reservoir type steam-liquid heat exchanging device of low-pressure stage system and use the heat-exchange system of this device.
Background technology
The vapour-liquid recuperative heat exchanger of existing ultralow temperature cascade refrigeration circulatory system low-pressure stage cycle refrigeration system is structurally often taked to draw close the method that fits tightly one segment distance of reverse flow together with the muffler after condensed feed tube and the evaporation and is carried out the vapour-liquid heat exchange; Or adopting feed liquor to walk the internal tank tubule, back-steam is walked the vapour-liquid heat exchanger of tubule outside.Adopt the vapour-liquid heat exchanger of said structure, its heat exchange effect is not ideal.Therefore, need find a kind of heat exchange efficiency height, can improve the liquid-reservoir type steam-liquid heat exchanging device of compressor safe operation again.
Summary of the invention
The purpose of this invention is to provide a kind of liquid-reservoir type steam-liquid heat exchanging device safe, reliable, efficient, practical, simple in structure.
Technical scheme of the present invention is as follows:
A kind of liquid-reservoir type steam-liquid heat exchanging device, it is characterized in that: this device comprises circular cylinder body, 2 baffle plates are housed in cylindrical shell will be divided into 3 cavitys in the cylindrical shell, be inlet chamber, heat exchanger and outlet chamber, wherein the cavity between two baffle plates is a heat exchanging chamber in cylindrical shell, set of heat exchange tubes is communicated with inlet chamber and outlet chamber, inlet chamber has the air inlet that is connected with the evaporimeter exhaust end, outlet chamber has the gas outlet that is connected with the compressor air suction end, and heat exchanging chamber has the import that is connected with the evaporative condenser liquid outlet and the outlet that is connected with choke valve inlet before the evaporator.
A kind of vapour-liquid heat-exchange system of using said apparatus, comprise compressor, evaporative condenser, evaporimeter, the exhaust end of compressor links to each other with evaporative condenser, the inlet end of compressor links to each other with evaporimeter, evaporative condenser passes through heat exchanging pipe, choke valve links to each other with evaporimeter, it is characterized in that: between the inlet end of compressor and evaporimeter, be connected with described liquid-reservoir type steam-liquid heat exchanging device, the outlet chamber of liquid-reservoir type steam-liquid heat exchanging device is connected with the compressor air suction end, inlet chamber is connected with the evaporimeter exhaust end, heat exchanging chamber be connected with the evaporative condenser liquid outlet with evaporator before the choke valve inlet be connected respectively.
The preferred technical solution of the present invention is as follows:
Preferably, described cylindrical shell is a steel.
Preferably, described liquid-reservoir type steam-liquid heat exchanging device is horizontal installation in the vapour-liquid heat-exchange system.
Preferably, on the pipeline section between outlet chamber and the compressor air suction end, be connected with oil pick-up tube, the other end of oil pick-up tube be connected to outlet chamber.
Preferably, also has a device for drying and filtering between the choke valve inlet before heat exchanging chamber and evaporator.
Operation principle of the present invention is: when the present invention works, in evaporative condenser, absorb the heat of vaporization vaporization of low-pressure stage cold-producing medium by low temperature cascade refrigeration circulation hiigh pressure stage cold-producing medium, condensation low-pressure stage vaporized refrigerant, make the low-pressure stage cold-producing medium become cryogenic high pressure liquid and enter liquid-reservoir type steam-liquid heat friendship device, when the cold-producing medium of low-pressure stage absorbs heat carburation by evaporation in evaporimeter after, during by liquid-reservoir type steam-liquid heat exchanging device, carry out exchange heat with the cryogenic liquid cold-producing medium in this heat exchanger, reach effective compressor back-steam operating mode of improving, improved the purpose of refrigerating capacity.This is because when the refrigerant vapour temperature of returning from evaporimeter is higher than heat exchanger inner refrigerant cryogenic condensation fluid temperature, the refrigerant vapour liquid-reservoir type steam-liquid heat exchanging device of flowing through, carry out the vapour-liquid heat exchange with the low temperature liquid cold-producing medium, can reduce refrigerant vapour back-steam temperature, effectively improve the air-breathing operating mode of cryogenic compressor, prevent that cryogenic compressor from sucking harmful superheated steam.When the refrigerant vapour temperature of returning from evaporimeter is lower than heat exchanger inner refrigerant cryogenic condensation fluid temperature, the refrigerant vapour liquid-reservoir type steam-liquid heat exchanging device of flowing through, carry out the gas-liquid heat exchange with the low temperature liquid cold-producing medium, can further reduce the temperature of liquid refrigerant, improve the degree of supercooling of liquid refrigerant, thereby effectively improve the refrigeratory capacity under this cooling condition; Simultaneously,, can suitably improve refrigerant vapour back-steam temperature, prevent that effectively compressor from producing liquid hammer, improves the security of compressor operating by the vapour-liquid heat exchange.
The invention has the beneficial effects as follows: simple in structure, using not only convenient but also safe and reliable, as effectively to utilize low temperature cascade refrigeration circulatory system mesolow level kind of refrigeration cycle inner refrigerant simultaneously liquid state and the heat between the steam state exchanges, reach effective compressor air suction operating mode of improving, improve the effect of refrigerating capacity.
Description of drawings
The present invention will illustrate by example and with reference to the mode of accompanying drawing, wherein:
Fig. 1 is the schematic diagram of vapour-liquid heat-exchange system embodiment of the present invention.
Fig. 2 is the structural representation of liquid storage type gas-liquid heat-exchange device among Fig. 1.
Wherein Reference numeral is:
1 is the low-pressure stage compressor, 2 is oil return pipe, 3 are the adapter of compressor steam discharge, 4 is oil eliminator, 5 is overheated cooler, 6 is the import of evaporative condenser low-pressure stage cold-producing medium high-temperature gas, 7 is the outlet of evaporative condenser hiigh pressure stage cold-producing medium Low Temperature Steam, 8 is evaporative condenser, 9 is the import of evaporative condenser hiigh pressure stage cold-producing medium evaporating liquid, 10 is the outlet of evaporative condenser low-pressure stage cold-producing medium cryogenic liquid, 11 is device for drying and filtering, 12 is choke valve, 13 is evaporimeter, 14 is the liquid-reservoir type steam-liquid heat exchanger, 15 inhale vapour for compressor takes over, 16 is the refrigerant vapour discharge connection, 17 is oil pick-up tube, 18 is end socket, 19 is cold-producing medium cryogenic liquid inlet union, 20 is cylindrical shell, 21 is the vapour-liquid heat-exchange tube, 22 is cold-producing medium cryogenic liquid outlet connection, 23 is baffle plate, 24 are the adapter of refrigerant vapour mouth.
The specific embodiment
A kind of vapour-liquid heat-exchange system as shown in Figure 1, comprise low-pressure stage compressor 1, the oil return pipe 2 of compressor is connected with oil eliminator 4, the steam discharge of compressor is taken over 2 process oil eliminators 4 and overheated cooler 5 is connected to evaporative condenser 8, compressor is inhaled vapour adapter 15 and is connected to liquid-reservoir type steam-liquid heat exchanging device 14, has evaporative condenser hiigh pressure stage cold-producing medium evaporating liquid import 9 and evaporative condenser hiigh pressure stage cold-producing medium Low Temperature Steam outlet 7 on the evaporative condenser 8, evaporative condenser low-pressure stage cold-producing medium cryogenic liquid outlet 10 is connected to liquid-reservoir type steam-liquid heat exchanging device 14, the internal structure of liquid-reservoir type steam-liquid heat exchanging device 14 as shown in Figure 2, comprise circular cylinder body 20,2 baffle plates 23 are housed in cylindrical shell 20 are divided into 3 cavitys in cylindrical shell, it is inlet chamber, heat exchanger and outlet chamber, wherein the cavity between two baffle plates is a heat exchanging chamber in cylindrical shell, inlet chamber and outlet chamber are the end sockets 18 between baffle plate 23 and cylindrical shell 20 ends, vapour-liquid heat-exchange tube 21 is communicated with inlet chamber and outlet chamber, inlet chamber has the refrigerant vapour mouth that is connected with evaporimeter 13 exhaust ends and takes over 24, outlet chamber has the refrigerant vapour discharge connection 16 that is connected with the compressor air suction end, and heat exchanging chamber has and evaporative condenser low-pressure stage cold-producing medium cryogenic liquid outlet 10 cold-producing medium cryogenic liquid inlet union 19 that are connected and the cold-producing medium cryogenic liquid outlet connection 22 that is connected with choke valve 11 inlets before evaporimeter 13 imports.
Preferably, between choke valve 11 inlets of evaporimeter 13 and cold-producing medium cryogenic liquid outlet connection 22, be connected with device for drying and filtering 11.
Preferably, on refrigerant vapour discharge connection 16 pipeline sections, be connected with oil pick-up tube, the other end of oil pick-up tube be connected to outlet chamber.
Disclosed all features in this specification, or the step in disclosed all methods or the process except mutually exclusive feature and/or step, all can make up by any way.
Disclosed arbitrary feature in this specification (comprising any accessory claim, summary and accompanying drawing) is unless special narration all can be replaced by other equivalences or the alternative features with similar purpose.That is, unless special narration, each feature is an example in a series of equivalences or the similar characteristics.
The present invention is not limited to the aforesaid specific embodiment.The present invention expands to any new feature or any new combination that discloses in this manual, and the arbitrary new method that discloses or step or any new combination of process.
Claims (6)
1. liquid-reservoir type steam-liquid heat exchanging device, it is characterized in that: this device comprises circular cylinder body, 2 baffle plates are housed in cylindrical shell will be divided into 3 cavitys in the cylindrical shell, be inlet chamber, heat exchanger and outlet chamber, wherein the cavity between two baffle plates is a heat exchanging chamber in cylindrical shell, set of heat exchange tubes is communicated with inlet chamber and outlet chamber, inlet chamber has the air inlet that is connected with the evaporimeter exhaust end, outlet chamber has the gas outlet that is connected with the compressor air suction end, and heat exchanging chamber has the import that is connected with the evaporative condenser liquid outlet and the outlet that is connected with choke valve inlet before the evaporator.
2. liquid-reservoir type steam-liquid heat exchanging device according to claim 1 is characterized in that: described cylindrical shell is a steel.
3. vapour-liquid heat-exchange system of using the described device of claim 1, comprise compressor, evaporative condenser, evaporimeter, the exhaust end of compressor links to each other with evaporative condenser, the inlet end of compressor links to each other with evaporimeter, evaporative condenser passes through heat exchanging pipe, choke valve links to each other with evaporimeter, it is characterized in that: between the inlet end of compressor and evaporimeter, be connected with described liquid-reservoir type steam-liquid heat exchanging device, the outlet chamber of liquid-reservoir type steam-liquid heat exchanging device is connected with the compressor air suction end, inlet chamber is connected with the evaporimeter exhaust end, heat exchanging chamber be connected with the evaporative condenser liquid outlet with evaporator before the choke valve inlet be connected respectively.
4. vapour-liquid heat-exchange system according to claim 3 is characterized in that: described liquid-reservoir type steam-liquid heat exchanging device is horizontal installation in the vapour-liquid heat-exchange system.
5. vapour-liquid heat-exchange system according to claim 3 is characterized in that: on the pipeline section between outlet chamber and the compressor air suction end, be connected with oil pick-up tube, the other end of oil pick-up tube be connected to outlet chamber.
6. vapour-liquid heat-exchange system according to claim 3 is characterized in that: also have a device for drying and filtering between the choke valve inlet before heat exchanging chamber and evaporator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910307870A CN101666567A (en) | 2009-09-28 | 2009-09-28 | Liquid-reservoir type steam-liquid heat exchanging device and heat exchanging system using device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910307870A CN101666567A (en) | 2009-09-28 | 2009-09-28 | Liquid-reservoir type steam-liquid heat exchanging device and heat exchanging system using device |
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| Publication Number | Publication Date |
|---|---|
| CN101666567A true CN101666567A (en) | 2010-03-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200910307870A Withdrawn CN101666567A (en) | 2009-09-28 | 2009-09-28 | Liquid-reservoir type steam-liquid heat exchanging device and heat exchanging system using device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103900298A (en) * | 2012-12-28 | 2014-07-02 | 珠海格力电器股份有限公司 | Regenerator, refrigeration equipment and refrigeration vehicle |
| CN109631470A (en) * | 2018-12-12 | 2019-04-16 | 河北万博生物科技有限公司 | A kind of cooling water circulating apparatus |
| WO2022022407A1 (en) * | 2020-07-25 | 2022-02-03 | 浙江三花汽车零部件有限公司 | Thermal management component |
-
2009
- 2009-09-28 CN CN200910307870A patent/CN101666567A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103900298A (en) * | 2012-12-28 | 2014-07-02 | 珠海格力电器股份有限公司 | Regenerator, refrigeration equipment and refrigeration vehicle |
| CN103900298B (en) * | 2012-12-28 | 2016-07-06 | 珠海格力电器股份有限公司 | Regenerator, fridge-freezer and freezing and refrigeration car |
| CN109631470A (en) * | 2018-12-12 | 2019-04-16 | 河北万博生物科技有限公司 | A kind of cooling water circulating apparatus |
| WO2022022407A1 (en) * | 2020-07-25 | 2022-02-03 | 浙江三花汽车零部件有限公司 | Thermal management component |
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Open date: 20100310 |