CN203629161U - Air-supplying structure of economizer capable of adjustable refrigerant flow - Google Patents
Air-supplying structure of economizer capable of adjustable refrigerant flow Download PDFInfo
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- CN203629161U CN203629161U CN201320813898.5U CN201320813898U CN203629161U CN 203629161 U CN203629161 U CN 203629161U CN 201320813898 U CN201320813898 U CN 201320813898U CN 203629161 U CN203629161 U CN 203629161U
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- 239000003507 refrigerant Substances 0.000 title claims abstract description 75
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 34
- 230000001105 regulatory effect Effects 0.000 claims description 43
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 238000004781 supercooling Methods 0.000 abstract description 9
- 238000005057 refrigeration Methods 0.000 abstract description 8
- 239000007788 liquid Substances 0.000 description 11
- 230000010354 integration Effects 0.000 description 8
- 230000001276 controlling effect Effects 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
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Abstract
The utility model pertains to the technical field of refrigeration equipment and discloses an air-supplying structure of an economizer capable of adjustable the refrigerant flow which helps to resolve the problem that the through-put capability of refrigerants in a super-cooling passage cannot be individually adjusted. The air-supplying structure comprises the economizer, the super-cooling passage and an air-supplying passage. The refrigerants of the super-cooling passage and the air-supplying passage exchange heat in the economizer. The super-cooling passage enables the portion outside the economizer to be divided into two portions including an upstream passage and a downstream passage along the flow direction of the refrigerants. An air-supplying connection point where the air-supplying passage and the super-cooling passage are communicated is arranged at the upstream passage. The air-supplying structure also comprises an adjusting branch. A first connection point and a second connection point are formed in such a manner that the two ends of the adjusting branch are respectively communicated with the super-cooling passage. The first connection pint is arranged at the upstream passage. The second connection point is arranged at the downstream passage. The adjusting branch and the economizer are connected in parallel in the super-cooling passage and total amount of the high-temperature high-pressure refrigerants passing through the super-cooling passage can be individually adjusted. Meanwhile, the refrigerant flow of the air-supplying passage is not affected.
Description
Technical field
The utility model relates to art of refrigeration units, particularly a kind of economizer gas supplementary structure of adjustable refrigerant flow.
Background technology
In lower compared with high and low pressure pressure in evaporating temperature lower (below 25 ℃), delivery temperature in refrigerated air-conditioning system, the low inferior situation of unit efficiency; in order to make compressor operating also improve the efficiency of compressor bank under the security parameter environment of design simultaneously, often can use economizer.
From compressor high temperature, higher pressure refrigerant gas out, cooling through condenser condenses, condensed high-pressure refrigerant is divided into two-way: major loop was cold path, and subsidiary loop is tonifying Qi path.The refrigerant liquid of subsidiary loop is calmed the anger in being depressured to and becoming after certain intermediate pressure, liquid mixture heat exchange occurs in economizer with the higher refrigerant liquid of temperature from major loop.The refrigerant liquid of subsidiary loop absorbs heat and becomes gas, fills into compressor operating chamber by the inlet end of compressor; Meanwhile, the cold-producing medium of major loop obtains supercooling, and this part excessively cold cold-producing medium enters evaporimeter after expansion valve.In evaporimeter, the cold-producing medium of major loop absorbs the heat in low temperature environment and becomes low-pressure gas and enter compressor air suction chamber, after compression in a section, the cold-producing medium in main and auxiliary loop mixes in compressor operating chamber, then along with mix until mixed process finishes on this compression limit, two parts cold-producing medium limit of rotation of working chamber, mixed cold-producing medium is further discharged compressor after compression through compressor, so far, form a complete closed circulation, circulate through the economizer tonifying Qi of economizer structure.
Adopt economizer tonifying Qi circulation, can improve the efficiency of kind of refrigeration cycle, improve refrigerating capacity, reduce compressor exhaust temperature, improve low pressure.The use of economizer can make compressor application wider, more economical.But in use; as disclosed technology or similar structures in the patent publication No. Chinese patent that is 202304102U; it is unadjustable usually can to there is the total amount (cross the cold-producing medium of cold path and the cold-producing medium sum of tonifying Qi path) of the cold-producing medium because flowing through in economizer in existing economizer tonifying Qi loop structure (as Fig. 4); make tonifying Qi temperature too high or have to reduce the cold-producing medium total flow of economizer tonifying Qi circulation, cause realizing re-set target.
Summary of the invention
The object that the utility model will reach is to provide a kind of economizer gas supplementary structure of adjustable refrigerant flow.
In order to achieve the above object, the utility model adopts following technical scheme: a kind of economizer gas supplementary structure of adjustable refrigerant flow, comprise economizer, cross cold path and tonifying Qi path, cross cold path, cold-producing medium in tonifying Qi path heat-shift in economizer, the part outside economizer is divided into upstream passages and two parts of downstream passages along flow of refrigerant direction to cross cold path, tonifying Qi path is located at upstream passages with the tonifying Qi tie point that cold path is communicated with excessively, also comprise adjusting branch road, regulate branch road two ends to be communicated with and to form the first tie point and the second tie point with the cold path of mistake respectively, the first tie point is located at upstream passages, the second tie point is located at downstream passages.
Further, in described upstream passages, along in the direction of flow of refrigerant, described the first tie point is located at upstream or the downstream of described tonifying Qi tie point.Before or after part cold-producing medium enters tonifying Qi path, shunt the cold-producing medium of HTHP, can reach the object of tapped refrigerant.
Further, described the first tie point and described tonifying Qi tie point in described upstream passages in same position.When cold-producing medium part enters tonifying Qi path, part branches to adjusting branch road, also can reach the object of tapped refrigerant.
Further, described adjusting branch road is provided with first flow adjusting device.Can regulate as required the flow of the cold-producing medium passing through from adjusting branch road.
Further, described first flow adjusting device is electric expansion valve.Electric expansion valve can feed back the temperature and pressure parameter from regulating the high-temperature high-pressure refrigerant that flows through of branch road, and can be by Single-chip Controlling, thus the electromechanical integration of realization.
Further, described tonifying Qi path is provided with second quantity regulating device.Can regulate as required the flow of the cold-producing medium passing through from tonifying Qi path.
Further, described second quantity regulating device is electric expansion valve.Electric expansion valve can feed back from tonifying Qi path, pass through in, the low-pressure gas-liquid temperature and pressure parameter of cold-producing medium of mixing, and can be by Single-chip Controlling, thus the electromechanical integration of realization.
A kind of economizer gas supplementary structure of adjustable refrigerant flow, comprise economizer, cross cold path and tonifying Qi path, cross cold path, cold-producing medium in tonifying Qi path heat-shift in economizer, the part outside economizer is divided into upstream passages and two parts of downstream passages along flow of refrigerant direction to cross cold path, tonifying Qi path is located at upstream passages with the tonifying Qi tie point that cold path is communicated with excessively, also comprise adjusting branch road, regulate branch road one end to be communicated with and to form the first tie point with the downstream passages of crossing cold path, the one end that regulates the branch road other end to be connected cold path with tonifying Qi path on tonifying Qi path is communicated with formation the second tie point.
Further, described adjusting branch road is provided with first flow adjusting device, can regulate as required the flow of the cold-producing medium passing through from tonifying Qi path, first flow adjusting device is electric expansion valve, electric expansion valve can feed back from tonifying Qi path, pass through in, the low-pressure gas-liquid temperature and pressure parameter of cold-producing medium of mixing, and can be by Single-chip Controlling, thereby the electromechanical integration of realization.
Further, described tonifying Qi path is provided with second quantity regulating device, second quantity regulating device at tonifying Qi path along the downstream of being located at described the second tie point in flow of refrigerant direction.Can regulate as required the flow of the cold-producing medium passing through from tonifying Qi path, simultaneously before adjusting tonifying Qi Access flow, the second tie point place tapped refrigerant, second quantity regulating device is electric expansion valve, electric expansion valve can feed back from tonifying Qi path, pass through in, the low-pressure gas-liquid temperature and pressure parameter of cold-producing medium of mixing, and can be by Single-chip Controlling, thereby the electromechanical integration of realization.
Adopt after technique scheme, the utlity model has following advantage:
Regulate branch road in parallel in the cold path of mistake with economizer, can be by regulating branch road to regulate separately the total amount of stream through the high-temperature high-pressure refrigerant of cold path, and the while does not affect the flow of cold-producing medium in tonifying Qi path, can effectively reduce tonifying Qi temperature, further improve kind of refrigeration cycle efficiency, improve refrigerating capacity.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is described in further detail:
Fig. 1 is the structural representation of the utility model embodiment mono-;
Fig. 2 is the structural representation of the utility model embodiment bis-;
Fig. 3 is the structural representation of the utility model embodiment tri-;
Fig. 4 is the structural representation of the utility model embodiment tetra-;
Fig. 5 is economizer tonifying Qi loop structure of the prior art.
The specific embodiment
Embodiment mono-
See Fig. 1, a kind of economizer 1 gas supplementary structure of adjustable refrigerant flow, the flow direction that arrow a direction is cold-producing medium, comprise economizer 1, cross cold path I and tonifying Qi path II, cross cold path I, cold-producing medium in tonifying Qi path II heat-shift in economizer 1, the part outside economizer is divided into upstream passages 6 and 7 two parts of downstream passages along flow of refrigerant direction a to cross cold path I, tonifying Qi path II is located at upstream passages with the tonifying Qi tie point 8 that cold path I is communicated with excessively, the connection here refers to that the two is directly connected, also comprise and regulate branch road III, regulate branch road III two ends to be communicated with and to form two tie points with the cold path I of mistake respectively: the first tie point 4, the second tie point 5, wherein the first tie point 4 is located at upstream passages 6, the second tie point 5 is located at downstream passages 7, wherein in upstream passages 6 along in the direction of flow of refrigerant, the first tie point 4 is located at the upstream of tonifying Qi tie point 8, before entering tonifying Qi path II, shunts by part cold-producing medium the cold-producing medium of HTHP.
Regulate branch road III to be provided with first flow adjusting device 2, tonifying Qi path II is provided with second quantity regulating device 3, first flow adjusting device 2, second quantity regulating device 3 are the electric expansion valve with information feedback device, can regulate as required the flow from regulating the cold-producing medium that branch road III or tonifying Qi path II pass through, be connected and realize electromechanical integration with single-chip microcomputer, and Real-time Feedback regulates the temperature and pressure parameter of the high-temperature high-pressure refrigerant in branch road III, the mesolow gas-liquid mixed refrigerant in tonifying Qi path II simultaneously.First flow adjusting device 2, second quantity regulating device 3 also can adopt common discharge valve to realize.
Regulate branch road III in parallel in the cold path I of mistake with economizer 1, can be by regulating branch road III to reduce the quantity of the high-temperature high-pressure refrigerant of the economizer 1 of flowing through, and the while does not affect the flow of cold-producing medium in tonifying Qi path II, can effectively reduce tonifying Qi temperature, further improve kind of refrigeration cycle efficiency, improve refrigerating capacity.If first excessive discharge temperature regulates second quantity regulating device 3 to control the refrigerant flow in tonifying Qi path II when work, if can not delivery temperature be adjusted in setting range in setting-up time, open the first flow adjusting device 2 for closing under original state, make part high-temperature high-pressure refrigerant directly enter next step without economizer 1, and according to first flow adjusting device 2, in second quantity regulating device 3, the temperature and pressure information of feedback is in real time by first flow adjusting device 2, second quantity regulating device 3 regulates branch road III, refrigerant flow in tonifying Qi path II, until reach requirement.
In accompanying drawing, the circuit of economizer inside just represented cold path I, tonifying Qi path II annexation, did not limit the actual trend of each pipeline in economizer.
Embodiment bis-
See Fig. 2, a kind of economizer 1 gas supplementary structure of adjustable refrigerant flow, the flow direction that arrow a direction is cold-producing medium, comprise economizer 1, cross cold path I and tonifying Qi path II, cross cold path I, cold-producing medium in tonifying Qi path II heat-shift in economizer 1, the part outside economizer is divided into upstream passages 6 and 7 two parts of downstream passages along flow of refrigerant direction a to cross cold path I, tonifying Qi path II is located at upstream passages with the tonifying Qi tie point 8 that cold path I is communicated with excessively, also comprise and regulate branch road III, regulate branch road III two ends to be communicated with and to form two tie points with the cold path I of mistake respectively: the first tie point 4, the second tie point 5, wherein the first tie point 4 is located at upstream passages 6, the second tie point 5 is located at downstream passages 7, wherein in upstream passages 6 along in the direction of flow of refrigerant, the first tie point 4 is located at the downstream of tonifying Qi tie point 8, after entering tonifying Qi path II, shunts by part cold-producing medium the cold-producing medium of HTHP.
Regulate branch road III to be provided with first flow adjusting device 2, tonifying Qi path II is provided with second quantity regulating device 3, first flow adjusting device 2, second quantity regulating device 3 are the electric expansion valve with information feedback device, can regulate as required the flow from regulating the cold-producing medium that branch road III or tonifying Qi path II pass through, be connected and realize electromechanical integration with single-chip microcomputer, and Real-time Feedback regulates the temperature and pressure parameter of the high-temperature high-pressure refrigerant in branch road III, the mesolow gas-liquid mixed refrigerant in tonifying Qi path II simultaneously.First flow adjusting device 2, second quantity regulating device 3 also can adopt common discharge valve to realize.
Regulate branch road III in parallel in the cold path I of mistake with economizer 1, can be by regulating branch road III to reduce the quantity of the high-temperature high-pressure refrigerant of the economizer 1 of flowing through, and the while does not affect the flow of cold-producing medium in tonifying Qi path II, can effectively reduce tonifying Qi temperature, further improve kind of refrigeration cycle efficiency, improve refrigerating capacity.If first excessive discharge temperature regulates second quantity regulating device 3 to control the refrigerant flow in tonifying Qi path II when work, if can not delivery temperature be adjusted in setting range in setting-up time, open the first flow adjusting device 2 for closing under original state, make part high-temperature high-pressure refrigerant directly enter next step without economizer 1, and according to first flow adjusting device 2, in second quantity regulating device 3, the temperature and pressure information of feedback is in real time by first flow adjusting device 2, second quantity regulating device 3 regulates branch road III, refrigerant flow in tonifying Qi path II, until reach requirement.
In accompanying drawing, the circuit of economizer inside just represented cold path I, tonifying Qi path II annexation, did not limit the actual trend of each pipeline in economizer.
Embodiment tri-
See Fig. 3, a kind of economizer 1 gas supplementary structure of adjustable refrigerant flow, the flow direction that arrow a direction is cold-producing medium, comprise economizer 1, cross cold path I and tonifying Qi path II, cross cold path I, cold-producing medium in tonifying Qi path II heat-shift in economizer 1, the part outside economizer is divided into upstream passages 6 and 7 two parts of downstream passages along flow of refrigerant direction a to cross cold path I, tonifying Qi path II is located at upstream passages 6 with the tonifying Qi tie point 8 that cold path I is communicated with excessively, also comprise and regulate branch road III, regulate branch road III one end to be communicated with and to form the second tie point 5 with the downstream passages 7 of crossing cold path I, regulate the branch road III other end to be communicated with tonifying Qi path II arrival end and form the first tie point 4, after entering tonifying Qi path II, shunts by part cold-producing medium the cold-producing medium of HTHP.
Regulate branch road III to be provided with first flow adjusting device 2, tonifying Qi path II is provided with second quantity regulating device 3, first flow adjusting device 2, second quantity regulating device 3 are the electric expansion valve with information feedback device, can regulate as required the flow from regulating the cold-producing medium that branch road III or tonifying Qi path II pass through, be connected and realize electromechanical integration with single-chip microcomputer, and Real-time Feedback regulates the temperature and pressure parameter of the high-temperature high-pressure refrigerant in branch road III, the mesolow gas-liquid mixed refrigerant in tonifying Qi path II simultaneously.First flow adjusting device 2, second quantity regulating device 3 also can adopt common discharge valve to realize.
Regulate branch road III in parallel in the cold path I of mistake with economizer 1, can be by regulating branch road III to reduce the quantity of the high-temperature high-pressure refrigerant of the economizer 1 of flowing through, and the while does not affect the flow of cold-producing medium in tonifying Qi path II, can effectively reduce tonifying Qi temperature, further improve kind of refrigeration cycle efficiency, improve refrigerating capacity.If first excessive discharge temperature regulates second quantity regulating device 3 to control the refrigerant flow in tonifying Qi path II when work, if can not delivery temperature be adjusted in setting range in setting-up time, open the first flow adjusting device 2 for closing under original state, make part high-temperature high-pressure refrigerant directly enter next step without economizer 1, and according to first flow adjusting device 2, in second quantity regulating device 3, the temperature and pressure information of feedback is in real time by first flow adjusting device 2, second quantity regulating device 3 regulates branch road III, refrigerant flow in tonifying Qi path II, until reach requirement.
In accompanying drawing, the circuit of economizer inside just represented cold path I, tonifying Qi path II annexation, did not limit the actual trend of each pipeline in economizer.
Embodiment tetra-
See Fig. 4, a kind of economizer 1 gas supplementary structure of adjustable refrigerant flow, the flow direction that arrow a direction is cold-producing medium, comprise economizer 1, cross cold path I and tonifying Qi path II, cross cold path I, cold-producing medium in tonifying Qi path II heat-shift in economizer 1, the part outside economizer is divided into upstream passages 6 and 7 two parts of downstream passages along flow of refrigerant direction a to cross cold path I, tonifying Qi path II is located at upstream passages with the tonifying Qi tie point 8 that cold path I is communicated with excessively, also comprise and regulate branch road III, regulate branch road III two ends to be communicated with and to form two tie points with the cold path I of mistake respectively: the first tie point 4, the second tie point 5, wherein the first tie point 4 is located at upstream passages 6, the second tie point 5 is located at downstream passages 7, the first tie point 4 and tonifying Qi tie point 8 in upstream passages 6 in same position, as use the devices such as cross valve to connect, when cold-producing medium part enters tonifying Qi path II, part branches to and regulates branch road III, also can reach the object of tapped refrigerant.
Regulate branch road III to be provided with first flow adjusting device 2, tonifying Qi path II is provided with second quantity regulating device 3, first flow adjusting device 2, second quantity regulating device 3 are the electric expansion valve with information feedback device, can regulate as required the flow from regulating the cold-producing medium that branch road III or tonifying Qi path II pass through, be connected and realize electromechanical integration with single-chip microcomputer, and Real-time Feedback regulates the temperature and pressure parameter of the high-temperature high-pressure refrigerant in branch road III, the mesolow gas-liquid mixed refrigerant in tonifying Qi path II simultaneously.First flow adjusting device 2, second quantity regulating device 3 also can adopt common discharge valve to realize.
Regulate branch road III in parallel in the cold path I of mistake with economizer 1, can be by regulating branch road III to reduce the quantity of the high-temperature high-pressure refrigerant of the economizer 1 of flowing through, and the while does not affect the flow of cold-producing medium in tonifying Qi path II, can effectively reduce tonifying Qi temperature, further improve kind of refrigeration cycle efficiency, improve refrigerating capacity.If first excessive discharge temperature regulates second quantity regulating device 3 to control the refrigerant flow in tonifying Qi path II when work, if can not delivery temperature be adjusted in setting range in setting-up time, open the first flow adjusting device 2 for closing under original state, make part high-temperature high-pressure refrigerant directly enter next step without economizer 1, and according to first flow adjusting device 2, in second quantity regulating device 3, the temperature and pressure information of feedback is in real time by first flow adjusting device 2, second quantity regulating device 3 regulates branch road III, refrigerant flow in tonifying Qi path II, until reach requirement.
In accompanying drawing, the circuit of economizer inside just represented cold path I, tonifying Qi path II annexation, did not limit the actual trend of each pipeline in economizer.
Except above preferred embodiment, the utility model also has other embodiment, those skilled in the art can make various changes and distortion according to the utility model, only otherwise depart from spirit of the present utility model, all should belong to the defined scope of the utility model claims.
Claims (10)
1. the economizer gas supplementary structure of an adjustable refrigerant flow, comprise economizer (1), cross cold path (I) and tonifying Qi path (II), cross cold path, cold-producing medium in tonifying Qi path heat-shift in economizer, the part outside economizer is divided into upstream passages (6) and (7) two parts of downstream passages along flow of refrigerant direction to cross cold path, tonifying Qi path is located at upstream passages with the tonifying Qi tie point (8) that cold path is communicated with excessively, it is characterized in that: also comprise and regulate branch road (III), regulate branch road two ends to be communicated with and to form the first tie point (4) and the second tie point (5) with the cold path of mistake respectively, the first tie point is located at upstream passages, the second tie point is located at downstream passages.
2. the economizer gas supplementary structure of a kind of adjustable refrigerant flow according to claim 1, is characterized in that: in described upstream passages, along in the direction of flow of refrigerant, described the first tie point is located at upstream or the downstream of described tonifying Qi tie point.
3. the economizer gas supplementary structure of a kind of adjustable refrigerant flow according to claim 1, is characterized in that: described the first tie point and described tonifying Qi tie point in described upstream passages in same position.
4. according to the economizer gas supplementary structure of the arbitrary described a kind of adjustable refrigerant flow of claim 1-3, it is characterized in that: described adjusting branch road is provided with first flow adjusting device (2).
5. the economizer gas supplementary structure of a kind of adjustable refrigerant flow according to claim 4, is characterized in that: described first flow adjusting device is electric expansion valve.
6. according to the economizer gas supplementary structure of the arbitrary described a kind of adjustable refrigerant flow of claim 1-3, it is characterized in that: described tonifying Qi path is provided with second quantity regulating device (3).
7. the economizer gas supplementary structure of a kind of adjustable refrigerant flow according to claim 6, is characterized in that: described second quantity regulating device is electric expansion valve.
8. the economizer gas supplementary structure of an adjustable refrigerant flow, comprise economizer, cross cold path and tonifying Qi path, cross cold path, cold-producing medium in tonifying Qi path heat-shift in economizer, the part outside economizer is divided into upstream passages and two parts of downstream passages along flow of refrigerant direction to cross cold path, tonifying Qi path is located at upstream passages with the tonifying Qi tie point that cold path is communicated with excessively, it is characterized in that: also comprise adjusting branch road, regulate branch road one end to be communicated with and to form the first tie point with the downstream passages of crossing cold path, the one end that regulates the branch road other end to be connected cold path with tonifying Qi path on tonifying Qi path is communicated with formation the second tie point.
9. the economizer gas supplementary structure of a kind of adjustable refrigerant flow according to claim 8, is characterized in that: described adjusting branch road is provided with first flow adjusting device.
10. the economizer gas supplementary structure of a kind of adjustable refrigerant flow according to claim 8 or claim 9, it is characterized in that: described tonifying Qi path is provided with second quantity regulating device, second quantity regulating device at tonifying Qi path along the downstream of being located at described the second tie point in flow of refrigerant direction.
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| CN201320813898.5U CN203629161U (en) | 2013-12-10 | 2013-12-10 | Air-supplying structure of economizer capable of adjustable refrigerant flow |
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| CN201320813898.5U CN203629161U (en) | 2013-12-10 | 2013-12-10 | Air-supplying structure of economizer capable of adjustable refrigerant flow |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106196721A (en) * | 2016-07-04 | 2016-12-07 | 珠海格力电器股份有限公司 | A kind of spray enthalpy compressor air-conditioning system and control method thereof |
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2013
- 2013-12-10 CN CN201320813898.5U patent/CN203629161U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106196721A (en) * | 2016-07-04 | 2016-12-07 | 珠海格力电器股份有限公司 | A kind of spray enthalpy compressor air-conditioning system and control method thereof |
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