CN217178932U - Air conditioner jet circulation system - Google Patents
Air conditioner jet circulation system Download PDFInfo
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- CN217178932U CN217178932U CN202220256491.6U CN202220256491U CN217178932U CN 217178932 U CN217178932 U CN 217178932U CN 202220256491 U CN202220256491 U CN 202220256491U CN 217178932 U CN217178932 U CN 217178932U
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- 238000002347 injection Methods 0.000 claims abstract description 54
- 239000007924 injection Substances 0.000 claims abstract description 54
- 239000007788 liquid Substances 0.000 claims abstract description 49
- 238000005057 refrigeration Methods 0.000 claims abstract description 39
- 239000007921 spray Substances 0.000 claims abstract description 16
- 239000003507 refrigerant Substances 0.000 description 18
- 238000004378 air conditioning Methods 0.000 description 6
- 239000000758 substrate Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000003570 air Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/88—Optimized components or subsystems, e.g. lighting, actively controlled glasses
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- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
The utility model provides an air conditioner sprays circulation system, include: a main circulation flow path including a compressor, a condenser, a switching valve, an injection port of an ejector, and a gas-liquid separator; the heat exchange flow path comprises an evaporator and a throttling element connected to a first port of the evaporator, a second port of the evaporator is simultaneously communicated with the switching valve and an injection port of the ejector, and one end of the throttling element, which is far away from the evaporator, is selectively communicated with the bottom of the gas-liquid separator and the switching valve; the switching valve comprises a first state and a second state, wherein in the first state, the jet port of the ejector is communicated with the outlet of the condenser, and the throttling element is communicated with the gas-liquid separator; in the second state, the outlet of the condenser is communicated with the throttling element, and the injection port of the ejector is communicated with the second port of the evaporator. According to the utility model discloses, make the system can be according to the different refrigeration mode of operating condition operation of difference, can the comprehensive energy efficiency ratio of lift system, guarantee the stability of system operation.
Description
Technical Field
The utility model belongs to the technical field of air conditioning, concretely relates to air conditioner sprays circulation system.
Background
The utility model with publication number CN109515115A discloses an automobile air conditioning system using carbon dioxide as working medium and a control method thereof, which can improve CO 2 The automobile air conditioner has the advantages of improving the refrigeration efficiency, the suction superheat degree of the compressor and the operation reliability. However, the refrigerant circulation path of the system is complicated, and the ejector technology has design optimization and control difficulty and is not mature to apply.
The utility model discloses a utility model with publication number CN214172602U discloses a solar energy sprays and compression coupled's two evaporation refrigerating plant, has improved scroll compressor and steam ejector's suction pressure, and steam ejector secondary fluid entry pressure when improving weak irradiation improves device performance and solar energy utilization ratio, improves system operation stability. However, the efficiency of the system for coupling solar energy is still low, and the improvement of the energy efficiency ratio is limited.
SUMMERY OF THE UTILITY MODEL
Therefore, the utility model provides an air conditioner sprays circulation system can overcome the air conditioner among the prior art and spray circulation system composition and control logic comparatively complicated, the system construction cost is higher, the system efficiency is on the low side not enough.
In order to solve the above problem, the utility model provides an air conditioner sprays circulation system, include:
the main circulation flow path comprises a compressor, a condenser, a switching valve, a jet orifice of an ejector and a gas-liquid separator which are sequentially arranged along the flow direction of a working medium;
the heat exchange flow path comprises an evaporator and a throttling element connected to a first port of the evaporator, a second port of the evaporator is simultaneously communicated with the switching valve and an injection port of the ejector, and one end, far away from the evaporator, of the throttling element is selectively communicated with the bottom of the gas-liquid separator and the switching valve;
wherein the switching valve includes a first state in which the injection port of the ejector communicates with the outlet of the condenser and the throttle member communicates with the gas-liquid separator, and a second state; in the second state, the outlet of the condenser is communicated with the throttling element, and the injection port of the ejector is communicated with the second port of the evaporator.
In some embodiments of the present invention, the substrate is,
a first one-way valve is arranged on a pipeline between the throttling element and the gas-liquid separator, and only working medium is allowed to flow from the gas-liquid separator to the throttling element; and/or a second one-way valve is arranged on a pipeline between the throttling element and the switching valve, and only the working medium is allowed to flow from the switching valve to the throttling element.
In some embodiments of the present invention, the substrate is,
the switching valve is a four-way valve, the four-way valve is provided with a D port, an E port, an S port and a C port, and when the switching valve is in the first state, the D port is communicated with the E port and the C port is communicated with the S port; when the switching valve is in the second state, the port D is communicated with the port C, and the port E is communicated with the port S.
In some embodiments of the present invention, the substrate is,
when the air conditioner injection circulation system operates in an injection refrigeration mode, the switching valve is in a first state, so that gaseous working media flowing out of the condenser and flowing into the gas-liquid separator are sucked into the compressor, and liquid working media in the gas-liquid separator enter the evaporator and then enter the injection port of the injector.
In some embodiments of the present invention, the substrate is,
when the air conditioner injection circulation system expansion valve is in a refrigeration mode, the switching valve is in a second state, so that the working medium flowing out of the condenser enters the evaporator, flows into the gas-liquid separator through the injection port and the injection port of the ejector and is sucked into the compressor.
The utility model provides a pair of air conditioner injection circulation system, it is right through the state of diverter valve switches the switching of realization system between injection refrigeration mode and expansion valve refrigeration mode to can make the system can be according to the different refrigeration mode of operation operating mode operation of difference, can the comprehensive energy efficiency ratio of lift system, the stability of assurance system operation, simultaneously, the component structure of this system obtains simplifying, and then has simplified corresponding control logic, has reduced the system construction cost.
Drawings
Fig. 1 is a schematic system diagram of an air conditioner injection circulation system according to an embodiment of the present invention, in which a switching valve is in a first state;
fig. 2 is a schematic system diagram of an air conditioner spray circulation system according to an embodiment of the present invention, in which the switching valve is in a second state.
The reference numerals are represented as:
1. a compressor; 2. a condenser; 3. a switching valve; 4. an ejector; 5. a gas-liquid separator; 6. an evaporator; 7. a throttling element; 81. a first check valve; 82. a second one-way valve; 91. an inner fan; 92. an outer fan.
Detailed Description
Referring to fig. 1 to 2 in combination, according to an embodiment of the present invention, there is provided an air conditioner spray circulation system including: the main circulation flow path comprises a compressor 1, a condenser 2, a switching valve 3, an injection port of an injector 4 and a gas-liquid separator 5 which are sequentially arranged along the flow direction of a working medium; a heat exchange flow path which comprises an evaporator 6 and a throttling element 7 connected to a first port of the evaporator 6, wherein a second port of the evaporator 6 is simultaneously communicated with the switching valve 3 and an injection port of the ejector 4, and one end of the throttling element 7, which is far away from the evaporator 6, is selectively communicated with the bottom of the gas-liquid separator 5 and the switching valve 3; wherein the switching valve 3 includes a first state in which the injection port of the ejector 4 communicates with the outlet of the condenser 2 and the throttle element 7 communicates with the gas-liquid separator 5, and a second state; in the second state, the outlet of the condenser 2 communicates with the throttle element 7, and the injection port of the ejector 4 communicates with the second port of the evaporator 6. In the technical scheme, the switching between the injection refrigeration mode (when the switching valve 3 is in the first state) and the expansion valve refrigeration mode (when the switching valve 3 is in the second state) of the system is realized by switching the states of the switching valve 3, so that the system can operate different refrigeration modes according to different operation conditions, the comprehensive energy efficiency ratio of the system can be improved, and the stability of the system operation is ensured.
The working medium is the medium material by which various heat engines or thermal equipment can complete the interconversion of heat energy and mechanical energy, and the common medium material comprises water, refrigerant, air and the like.
It should be noted that the energy efficiency of the system in one operation mode is different due to the difference of the thermal load of the environment where the system is located, for example, under a normal-temperature (specifically, 20 ℃ to 26 ℃) working condition, the energy efficiency of the system in the expansion valve refrigeration mode is relatively high, and under an adverse (specifically, for example, lower than 20 ℃ or higher than 26 ℃) working condition that is not normal-temperature, the energy efficiency of the system in the injection refrigeration mode is relatively high, so that the system of the present application may be correspondingly entered into different operation modes according to these preset working conditions, and further, the comprehensive energy efficiency ratio of the system is improved.
In some embodiments, a first check valve 81 is arranged on a pipeline between the throttling element 7 and the gas-liquid separator 5, and only allows the working medium to flow from the gas-liquid separator 5 to the throttling element 7; and/or a second one-way valve 82 is arranged on a pipeline between the throttling element 7 and the switching valve 3, and only the flow of the working medium from the switching valve 3 to the throttling element 7 is allowed. The first check valve 81 and the second check valve 82 can be electromagnetically controlled, and in some possible cases, mechanical differential pressure check valves can be adopted, and the combination of the first check valve 81 and the second check valve 82 and the switching valve 3 can guide the flow direction of working media in different operation modes, so that the normal operation of the modes is ensured.
In some embodiments, the switching valve 3 is a four-way valve having a port D, a port E, a port S, and a port C, the port D communicating with the port E and the port C communicating with the port S when the switching valve 3 is in the first state; when the switching valve 3 is in the second state, the port D communicates with the port C, and the port E communicates with the port S, so that the system structural design can be further simplified by using the four-way flow path switching characteristic of the four-way valve.
In some embodiments, when the air conditioning injection cycle system operates in the injection refrigeration mode, the switching valve 3 is in the first state, so that the gaseous working medium flowing out of the condenser 2 into the gas-liquid separator 5 is sucked into the compressor 1, and the liquid working medium in the gas-liquid separator 5 enters the evaporator 6 and then enters the injection port of the ejector 4, in this mode, the ejector 4 can fully recover the expansion work in the throttling process, thereby increasing the suction pressure of the compressor 1 (in a specific embodiment, a scroll compressor) and reducing the power consumption of the compressor 1.
In some embodiments, when the air conditioning injection cycle expansion valve is in the cooling mode, the switching valve 3 is in the second state, so that the working medium flowing out of the condenser 2 enters the evaporator 6, flows into the gas-liquid separator 5 through the injection port and the injection port of the ejector 4, and is sucked into the compressor 1, and in this mode, the ejector 4 corresponds to a section of pipeline, which does not perform an injection pressurization function.
According to the utility model discloses an embodiment still provides an air conditioner injection circulation system's control method for control foretell air conditioner injection circulation system, include:
acquiring an operation mode of a system;
and controlling and switching the state of the switching valve 3 according to the acquired operation mode.
Specifically, when the operation mode is an injection refrigeration mode, the switching valve 3 is controlled to be in a first state, so that the gaseous working medium flowing out of the condenser 2 into the gas-liquid separator 5 is sucked into the compressor 1, and the liquid working medium in the gas-liquid separator 5 enters the evaporator 6 and then flows into the injection port of the injector 4; and when the air conditioner injection circulation system expansion valve is in a refrigeration mode, the switching valve 3 is controlled to be in a second state, so that the working medium flowing out of the condenser 2 flows through the evaporator 6 in sequence, flows into the gas-liquid separator 5 through the injection port and the injection port of the ejector 4 and is sucked into the compressor 1.
In the technical scheme, the switching between the injection refrigeration mode (when the switching valve 3 is in the first state) and the expansion valve refrigeration mode (when the switching valve 3 is in the second state) of the system is realized by switching the states of the switching valve 3, so that the system can operate different refrigeration modes according to different operation conditions, the comprehensive energy efficiency ratio of the system can be improved, and the stability of the system operation is ensured.
The technical solution of the present invention is further explained with reference to fig. 1 and fig. 2 as follows:
the utility model discloses an among the air conditioner injection circulation system (also can be called as to have the refrigeration air conditioning system who sprays circulation), compressor 1 is connected with condenser 2, expansion valve (also being throttling element 7, lower with), evaporimeter 6 and forms conventional expansion valve refrigeration cycle system, and compressor 1 is connected with condenser 2, electromagnetism cross valve (also the diverter valve 3, lower with), sprayer 4, evaporimeter 6 in order to be used for forming and sprays refrigeration cycle system, through the switching of electromagnetism cross valve in the governing system in order to be used for the switching between expansion valve refrigeration cycle system and the injection refrigeration cycle system. The system has simple structure and convenient operation control, can adapt to different operation working conditions, and improves the comprehensive energy efficiency ratio of the system.
(1) The utility model discloses an expansion valve refrigeration mode flow as follows: as shown in fig. 2, the compressor → the condenser → the electromagnetic four-way valve D → the electromagnetic four-way valve C → the second one-way valve 82 → the expansion valve → the evaporator → the ejector → the gas-liquid separator → the compressor.
(2) The utility model discloses a spray refrigeration mode flow as follows: as shown in fig. 1, the compressor → the condenser → the electromagnetic four-way valve D → the electromagnetic four-way valve E → the ejector → the gas-liquid separator → the first check valve 81 → the expansion valve → the evaporator → the ejector → the gas-liquid separator → the compressor.
The utility model discloses a be provided with electromagnetism cross valve and check valve on refrigeration air conditioning system with spray circulation, electromagnetism cross valve and check valve are used for switching expansion valve refrigeration cycle and spray refrigeration cycle system jointly. The electromagnetic four-way valve and the one-way valve are added at proper positions of the compression refrigeration cycle system, and the switching between the expansion valve refrigeration cycle and the injection refrigeration cycle system is realized by utilizing the opening and closing of the electromagnetic four-way valve and utilizing the one-way conduction function of the one-way valve. The one-way valve is preferably arranged on a liquid inlet pipeline of the expansion valve, and the electromagnetic four-way valve is preferably arranged on a rear exhaust pipeline of the condenser and in front of the ejector.
When the system is in an injection refrigeration cycle system, the electromagnetic four-way valve DE and the electromagnetic four-way valve SC are communicated, the second one-way valve 82 is closed, the first one-way valve 81 is opened, the refrigerant passes through the expansion valve after passing through the ejector, and the ejector starts to operate at the moment to play a role as a lifting device; when the system is in an expansion valve refrigeration cycle system, the electromagnetic four-way valve DC and the SE are communicated, the second one-way valve 82 is opened, the first one-way valve 81 is closed, the refrigerant firstly passes through the expansion valve and then passes through the ejector, and the ejector stops running at the moment and does not play any role.
The working principle of the present invention is explained as follows:
(1) expansion valve cooling mode (see FIG. 2)
The high-temperature and high-pressure refrigerant gas discharged by the compressor enters a condenser, the refrigerant releases heat to give outdoor air and then is condensed into normal-temperature and high-pressure liquid, the normal-temperature and high-pressure liquid enters an expansion valve through an electromagnetic four-way valve and a second one-way valve 82, the normal-temperature and high-pressure liquid is throttled and reduced in pressure by the expansion valve to form two-phase low-temperature and low-pressure refrigerant, the two-phase low-pressure refrigerant flows to an evaporator and absorbs heat in the evaporator to be evaporated into low-pressure gas, the low-pressure gas enters a gas-liquid separator after passing through an ejector, and the gas-phase refrigerant returns to a gas suction port of the compressor through a gas outlet pipe to complete a refrigeration cycle. In this mode of operation, the first check valve 81 is closed and the injector ceases operation.
(2) Injection refrigeration mode (see FIG. 1)
The compressor discharges high-temperature and high-pressure refrigerant gas to enter a condenser, the refrigerant releases heat to outdoor air and then is condensed into normal-temperature and high-pressure liquid, the normal-temperature and high-pressure liquid enters an ejector through an electromagnetic four-way valve, the low-temperature and low-pressure refrigerant gas (low-pressure refrigerant gas from the outlet of the evaporator) and the refrigerant mixed with the condensed liquid enter a gas-liquid separator under the action of the ejector, and the gas-phase refrigerant returns to the air suction port of the compressor through an air outlet pipe to perform the next refrigeration cycle; the liquid refrigerant passes through the first check valve 81, is throttled and depressurized again by the expansion valve to become a two-phase low-temperature low-pressure refrigerant, flows to the evaporator, absorbs heat in the evaporator to evaporate into low-pressure gas, enters the injection port of the ejector, is mixed with the high-pressure refrigerant in the mixing section, and enters the gas-liquid separator again to complete a refrigeration cycle. In this mode of operation, the second one-way valve 82 is closed.
It is readily understood by a person skilled in the art that the advantageous ways described above can be freely combined, superimposed without conflict.
The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention. The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (5)
1. An air conditioner spray cycle system, comprising:
the main circulation flow path comprises a compressor (1), a condenser (2), a switching valve (3), a jet orifice of an ejector (4) and a gas-liquid separator (5) which are sequentially arranged along the flow direction of a working medium;
the heat exchange flow path comprises an evaporator (6) and a throttling element (7) connected to a first port of the evaporator (6), a second port of the evaporator (6) is simultaneously communicated with the switching valve (3) and an injection port of the ejector (4), and one end, far away from the evaporator (6), of the throttling element (7) is selectively communicated with the bottom of the gas-liquid separator (5) and the switching valve (3);
wherein the switching valve (3) comprises a first state in which the injection port of the ejector (4) communicates with the outlet of the condenser (2) and a second state in which the throttling element (7) communicates with the gas-liquid separator (5); in the second state, the outlet of the condenser (2) is communicated with the throttling element (7), and the injection port of the ejector (4) is communicated with the second port of the evaporator (6).
2. An air conditioner spray cycle system as set forth in claim 1,
a first one-way valve (81) is arranged on a pipeline between the throttling element (7) and the gas-liquid separator (5), and only the working medium is allowed to flow from the gas-liquid separator (5) to the throttling element (7); and/or a second one-way valve (82) is arranged on a pipeline between the throttling element (7) and the switching valve (3) and only allows the working medium to flow from the switching valve (3) to the throttling element (7).
3. An air conditioner spray cycle system as set forth in claim 1,
the switching valve (3) is a four-way valve, the four-way valve is provided with a D port, an E port, an S port and a C port, and when the switching valve (3) is in the first state, the D port is communicated with the E port and the C port is communicated with the S port; when the switching valve (3) is in the second state, the port D is communicated with the port C, and the port E is communicated with the port S.
4. An air conditioner injection circulation system according to any one of claims 1 to 3,
when the air conditioner injection circulation system operates in an injection refrigeration mode, the switching valve (3) is in a first state, so that gaseous working media flowing out of the condenser (2) and flowing into the gas-liquid separator (5) are sucked into the compressor (1), and liquid working media in the gas-liquid separator (5) enter the evaporator (6) and then enter the injection port of the ejector (4).
5. An air conditioner injection circulation system according to any one of claims 1 to 3,
when the air conditioner injection circulation system expansion valve is in a refrigeration mode, the switching valve (3) is in a second state, so that the working medium flowing out of the condenser (2) enters the evaporator (6), flows into the gas-liquid separator (5) through the injection port and the injection port of the ejector (4) and is sucked into the compressor (1).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202220256491.6U CN217178932U (en) | 2022-02-08 | 2022-02-08 | Air conditioner jet circulation system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202220256491.6U CN217178932U (en) | 2022-02-08 | 2022-02-08 | Air conditioner jet circulation system |
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| CN217178932U true CN217178932U (en) | 2022-08-12 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114791178A (en) * | 2022-02-08 | 2022-07-26 | 珠海格力电器股份有限公司 | Air conditioner injection circulation system and control method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114791178A (en) * | 2022-02-08 | 2022-07-26 | 珠海格力电器股份有限公司 | Air conditioner injection circulation system and control method thereof |
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