CN105526745A - Refrigerating system utilizing flash air to supercool high-pressure liquid refrigerant and realizing single-phase liquid-state uniform distribution of refrigerant - Google Patents
Refrigerating system utilizing flash air to supercool high-pressure liquid refrigerant and realizing single-phase liquid-state uniform distribution of refrigerant Download PDFInfo
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- CN105526745A CN105526745A CN201610077214.8A CN201610077214A CN105526745A CN 105526745 A CN105526745 A CN 105526745A CN 201610077214 A CN201610077214 A CN 201610077214A CN 105526745 A CN105526745 A CN 105526745A
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- Prior art keywords
- outlet
- current divider
- cold
- inlet
- gas
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
Abstract
The invention discloses a refrigerating system utilizing flash air to supercool a high-pressure liquid refrigerant and realizing single-phase liquid-state uniform distribution of the refrigerant. A gas exhaust port of a compressor is connected to an inlet of a condenser; an outlet of the condenser is connected to an inlet at a high-pressure liquid side of a heat regenerator; an outlet at the high-pressure liquid side of the heat regenerator is connected to an inlet of an inner heat exchanger of a flow splitter; an outlet of the inner heat exchanger of the flow splitter is connected to an inlet of a throttle valve; an outlet of the throttle valve is connected to an inlet of the flow splitter; a gas outlet of the flow splitter is connected to a low-pressure side gas inlet of the heat regenerator; a liquid outlet of the flow splitter is connected to each flow path inlet of an evaporator; and an outlet of the evaporator is connected to an inlet of a compressor. The refrigerating system can reduce heat transfer temperature difference of the evaporator to certain extent, so that irreversible loss of the system is reduced, drying loss of frozen and cold-storage food is reduced, and meaning to energy source efficient utilization and food storage is great.
Description
Technical field
The present invention relates to refrigeration technology field, in particular, relate to a kind of refrigeration system of dodging by the uniform distribution of cold-peace cold-producing medium single-phase liquid by gas.
Background technology
Along with the aggravation of world wide energy shortage problem and environmental problem, countries in the world man proposes the policy of energy-saving and emission-reduction.And much scholar and enterprise are all carrying out a large amount of technical research around the policy of energy-saving and emission-reduction, the especially conservation measures of refrigeration system.
At present, in the refrigeration system of liquid provision through direct expansion, cold-producing medium, after throttle mechanism, becomes gas-liquid two-phase cold-producing medium from single-phase liquid.The existence of flash gas, does not only have cooling effect in evaporimeter, but also account for most disengagement area, is that the heat exchange efficiency of evaporimeter declines; In addition from gas-liquid two-phase cold-producing medium out after throttling machine should through current divider to each stream of evaporimeter evenly, the feed flow of equivalent.But due to the interference of flash gas, often cause evaporimeter each stream feed flow uneven, not only affect the heat transfer effect of evaporimeter, cause the concussion of expansion valve, and then reduce the performance of whole refrigeration system, and cold-producing medium distribution inequality causes evaporimeter frosting uneven, evaporating pressure reduces, heat transfer temperature difference increases, and causes chilled food drying loss, reduces the quality of food storage.
The present invention is directed to the defect of above-mentioned refrigeration system, the flash gas after throttling is utilized to make high pressure liquid refrigerant excessively cold, not only improve the performance of refrigeration system, and make the distribution of gas-liquid two-phase cold-producing medium be converted into the distribution of single-phase liquid cold-producing medium, improve the allocation performance of current divider, improve the heat exchange efficiency of evaporimeter, and then improve the performance of whole refrigeration system.
Summary of the invention
The object of the invention is the technological deficiency for existing in prior art, structure improvement is carried out to existing current divider, after making the flash gas after throttling cool high pressure liquid refrigerant, send compressor back to.In evaporimeter, make the distribution of two phase flow be converted into the distribution of single-phase flow, eliminate the interference of gas phase, realize the even feed flow to evaporimeter, improve the heat exchange property of evaporimeter; Knockout resistance significantly reduces, and improves evaporating pressure, improves performance of refrigerant systems.
The technical scheme adopted for the object realizing invention is:
A kind of refrigeration system of dodging by the uniform distribution of cold-peace cold-producing medium single-phase liquid by gas, the exhaust outlet of compressor 1 is connected with the entrance of condenser 2, the outlet of described condenser 2 is connected with the entrance on regenerator 3 high pressure liquid side, the outlet on described regenerator 3 high pressure liquid side is connected with the entrance of current divider internal exchanger 4, the outlet of described current divider internal exchanger 4 is connected with the import of choke valve 5, the outlet of described choke valve 5 is connected with the import of current divider 6, the gas vent of described current divider 6 is connected with regenerator 3 low-pressure side gas access, the liquid outlet of described current divider 6 is connected with each path inlet of evaporimeter 7, the outlet of described evaporimeter 7 is connected with the entrance of described compressor 1.
Described current divider internal exchanger is positioned at current divider top, is coiled to form by copper pipe, or is material filling type.
The separating tube of described current divider is drawn by bottom and is connected respectively at each stream of evaporimeter, and the gas outlet tube of described knockout is drawn by top center and is connected with the import of regenerator low-pressure side.
Compared with prior art, the invention has the beneficial effects as follows:
1. the flash gas after the present invention utilizes throttling is that highly pressurised liquid is excessively cold, and the performance improving refrigeration system reaches energy-conservation object
2. the present invention and traditional current divider have different separatory principles, compare traditional knockout, and its pressure drop significantly reduces, and can improve evaporating pressure, improve performance of refrigerant systems.
3. two phase flow complicated in knockout in refrigeration system distribution is converted into single-phase flow distribution by the present invention, avoid gas phase to the interference of allocation performance, realize the even feed flow to each stream of evaporimeter, improve the heat exchange property of evaporimeter, and then improve performance of refrigerant systems.
4. the present invention can reduce the heat transfer temperature difference of evaporimeter to a certain extent, reduces the irreversible loss of system, reduces chilled food drying loss, high efficiency of energy is utilized and food storage significant.
Accompanying drawing explanation
Figure 1 shows that flash gas is other by cold-peace cold-producing medium single-phase liquid distribution system figure.
Detailed description of the invention
Below in conjunction with accompanying drawing, native system is described in detail.
As shown in Figure 1, the exhaust outlet of compressor 1 is connected with the entrance of condenser 2, the outlet of described condenser 2 is connected with the entrance on regenerator 3 high pressure liquid side, the outlet on described regenerator 3 high pressure liquid side is connected with the entrance of current divider internal exchanger 4, the outlet of described current divider internal exchanger 4 is connected with the import of choke valve 5, the outlet of described choke valve 5 is connected with the import of current divider 6, the gas vent of described current divider 6 is connected with regenerator 3 low-pressure side gas access, the liquid outlet of described current divider 6 is connected with each path inlet of evaporimeter 7, the outlet of described evaporimeter 7 is connected with the entrance of described compressor 1.
The operation principle of the other refrigeration system by the uniform distribution of cold-peace cold-producing medium single-phase liquid of a kind of flash gas of the present invention is as follows:
The gas refrigerant of the HTHP of being discharged by compressor 1 enters condenser 2 heat release, be condensed into the liquid refrigerant of temperature in high pressure, then enter regenerator 3 by low-pressure gas cross cold after, enter current divider internal exchanger 4, further by the flash gas after throttling and partially liq cold-producing medium excessively cold, then the gas-liquid two-phase cold-producing medium of low-temp low-pressure is become after entering choke valve 5 reducing pressure by regulating flow, after gas-liquid two-phase cold-producing medium enters the single-phase current divider 6 of the phase seperated liquid state of Novel air, in knockout inside because reduction of speed and Action of Gravity Field make gas-liquid two-phase be separated, liquid supplies each stream of evaporimeter 7 equably by the separating tube of knockout bottom, sweat cooling in evaporimeter, and gas and partially liq enter regenerator 3 after being absorbed heat by current divider internal exchanger 4, after the heat of further absorption highly pressurised liquid, converge with the return-air of evaporimeter, return the suction end of compressor 1.Thus complete the other assigning process being changed into unidirectional liquid refrigerant by SAPMAC method and two phase flow distribution of flash gas.
Claims (3)
1. one kind is dodged the other refrigeration system by the uniform distribution of cold-peace cold-producing medium single-phase liquid of gas, it is characterized in that, the exhaust outlet of compressor (1) is connected with the entrance of condenser (2), the outlet of described condenser (2) is connected with the entrance on regenerator (3) high pressure liquid side, the outlet on described regenerator (3) high pressure liquid side is connected with the entrance of current divider internal exchanger (4), the outlet of described current divider internal exchanger (4) is connected with the import of choke valve (5), the outlet of described choke valve (5) is connected with the import of current divider (6), the gas vent of described current divider (6) is connected with regenerator (3) low-pressure side gas access, the liquid outlet of described current divider (6) is connected with evaporimeter (7) each path inlet, the outlet of described evaporimeter (7) is connected with the entrance of described compressor (1).
2. the other refrigeration system by the uniform distribution of cold-peace cold-producing medium single-phase liquid of sudden strain of a muscle gas according to claim 1, it is characterized in that, described current divider internal exchanger is positioned at current divider top, is coiled to form by copper pipe, or is material filling type.
3. the other refrigeration system by the uniform distribution of cold-peace cold-producing medium single-phase liquid of sudden strain of a muscle gas according to claim 1, it is characterized in that, the separating tube of described current divider is drawn by bottom and is connected respectively at each stream of evaporimeter, and the gas outlet tube of described knockout is drawn by top center and is connected with the import of regenerator low-pressure side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610077214.8A CN105526745A (en) | 2016-02-04 | 2016-02-04 | Refrigerating system utilizing flash air to supercool high-pressure liquid refrigerant and realizing single-phase liquid-state uniform distribution of refrigerant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610077214.8A CN105526745A (en) | 2016-02-04 | 2016-02-04 | Refrigerating system utilizing flash air to supercool high-pressure liquid refrigerant and realizing single-phase liquid-state uniform distribution of refrigerant |
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| CN105526745A true CN105526745A (en) | 2016-04-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610077214.8A Pending CN105526745A (en) | 2016-02-04 | 2016-02-04 | Refrigerating system utilizing flash air to supercool high-pressure liquid refrigerant and realizing single-phase liquid-state uniform distribution of refrigerant |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106440438A (en) * | 2016-11-24 | 2017-02-22 | 南京佳力图机房环境技术股份有限公司 | Modularized magnetic levitation refrigeration system and multifunctional heat exchanger structure thereof |
| CN110082094A (en) * | 2019-05-29 | 2019-08-02 | 天津商业大学 | The shunting performance testing experimental system not influenced by the non-homogeneous heat exchange in downstream |
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| JP2010107152A (en) * | 2008-10-31 | 2010-05-13 | Mitsubishi Electric Corp | Refrigerating air-conditioning device |
| CN102095229A (en) * | 2011-01-13 | 2011-06-15 | 深圳市雅尔典科技有限公司 | Super high-rise building air conditioning system for directly refrigerating room air by using evaporator |
| CN202581553U (en) * | 2011-12-12 | 2012-12-05 | 海尔集团公司 | Air conditioner system |
| CN202869064U (en) * | 2012-11-12 | 2013-04-10 | 厦门金龙汽车空调有限公司 | Air conditioning system of energy-saving car |
| CN104634012A (en) * | 2013-11-07 | 2015-05-20 | 珠海格力电器股份有限公司 | Flash-evaporation heat storage tank, air-conditioner unit provided with same, and heating method of air-conditioner unit |
| CN205481967U (en) * | 2016-02-04 | 2016-08-17 | 天津商业大学 | Dodge refrigerating system that single -phase liquid uniform distribution of cold -peace refrigerant was crossed to gas bypass |
-
2016
- 2016-02-04 CN CN201610077214.8A patent/CN105526745A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010107152A (en) * | 2008-10-31 | 2010-05-13 | Mitsubishi Electric Corp | Refrigerating air-conditioning device |
| CN102095229A (en) * | 2011-01-13 | 2011-06-15 | 深圳市雅尔典科技有限公司 | Super high-rise building air conditioning system for directly refrigerating room air by using evaporator |
| CN202581553U (en) * | 2011-12-12 | 2012-12-05 | 海尔集团公司 | Air conditioner system |
| CN202869064U (en) * | 2012-11-12 | 2013-04-10 | 厦门金龙汽车空调有限公司 | Air conditioning system of energy-saving car |
| CN104634012A (en) * | 2013-11-07 | 2015-05-20 | 珠海格力电器股份有限公司 | Flash-evaporation heat storage tank, air-conditioner unit provided with same, and heating method of air-conditioner unit |
| CN205481967U (en) * | 2016-02-04 | 2016-08-17 | 天津商业大学 | Dodge refrigerating system that single -phase liquid uniform distribution of cold -peace refrigerant was crossed to gas bypass |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106440438A (en) * | 2016-11-24 | 2017-02-22 | 南京佳力图机房环境技术股份有限公司 | Modularized magnetic levitation refrigeration system and multifunctional heat exchanger structure thereof |
| CN110082094A (en) * | 2019-05-29 | 2019-08-02 | 天津商业大学 | The shunting performance testing experimental system not influenced by the non-homogeneous heat exchange in downstream |
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Application publication date: 20160427 |
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