CN106802036B - Refrigeration cycle system and method of high-temperature air conditioner and high-temperature air conditioner - Google Patents
Refrigeration cycle system and method of high-temperature air conditioner and high-temperature air conditioner Download PDFInfo
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- CN106802036B CN106802036B CN201710014546.6A CN201710014546A CN106802036B CN 106802036 B CN106802036 B CN 106802036B CN 201710014546 A CN201710014546 A CN 201710014546A CN 106802036 B CN106802036 B CN 106802036B
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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
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
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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
- F25B41/37—Capillary tubes
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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
- F25B2600/00—Control issues
- F25B2600/02—Compressor control
- F25B2600/027—Compressor control by controlling pressure
- F25B2600/0271—Compressor control by controlling pressure the discharge pressure
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
The invention relates to a refrigeration cycle system and a method of a high-temperature air conditioner and the high-temperature air conditioner, wherein the refrigeration cycle system comprises a compressor, an outdoor heat exchanger, a capillary tube, an indoor heat exchanger and a gas-liquid separator which are sequentially connected to form a loop; the compressor further comprises a pressure relief device, and two ends of the pressure relief device are respectively communicated with the working medium outlet of the compressor and the working medium inlet of the gas-liquid separator through pipelines. According to the invention, the pressure relief device is arranged between the working medium outlet of the compressor and the working medium inlet of the gas-liquid separator, when the exhaust pressure of the compressor is increased, part of the working medium can be converged with the outlet working medium of the indoor heat exchanger through the pressure relief device, and the working load of the outdoor heat exchanger can be reduced.
Description
Technical Field
The invention relates to the field of air conditioners, in particular to a refrigeration cycle system and method of a high-temperature air conditioner and the high-temperature air conditioner.
Background
The high-temperature air conditioner under the current T3 working condition needs to meet certain energy efficiency requirements, and needs to sacrifice partial energy efficiency under the T1 working condition, because the refrigerant filling amount under the T3 working condition is less than that under the optimal performance condition under the T1 working condition, and meanwhile, under the condition of less refrigerant, the air conditioner is easier to blow water under the condensation working condition. The prior art can solve the two difficulties by increasing the heat exchange area of the outdoor unit or improving the structure of the compressor, but the cost of the air conditioner is undoubtedly increased.
Disclosure of Invention
The invention aims to solve the technical problem of the prior art, and provides a refrigeration cycle system and a method of a high-temperature air conditioner and the high-temperature air conditioner, which solve the problem that the air conditioning capacity and the performance are not good due to the air conditioning charge of a T3 working condition air conditioner on the premise of not greatly improving the air conditioning cost.
The technical scheme for solving the technical problems is as follows: a refrigeration cycle system of a high-temperature air conditioner comprises a compressor, an outdoor heat exchanger, a capillary tube, an indoor heat exchanger and a gas-liquid separator which are sequentially connected to form a loop; the compressor further comprises a pressure relief device, and two ends of the pressure relief device are respectively communicated with the working medium outlet of the compressor and the working medium inlet of the gas-liquid separator through pipelines.
The invention has the beneficial effects that: by arranging the pressure relief device between the working medium outlet of the compressor and the working medium inlet of the gas-liquid separator, when the exhaust pressure of the compressor is increased, part of the working medium can converge with the outlet working medium of the indoor heat exchanger through the pressure relief device, and the working load of the outdoor heat exchanger can be reduced.
On the basis of the technical scheme, the invention can be further improved as follows.
Further, the pressure relief device comprises an unloading valve and a pressure relief capillary tube, and the compressor, the unloading valve, the pressure relief capillary tube and the gas-liquid separator are sequentially connected to form a pressure relief loop.
The beneficial effect of adopting the further scheme is that: when the discharge pressure of the compressor is greater than the set pressure of the unloading valve, the unloading valve starts to work, part of working medium passes through the unloading valve and the pressure relief capillary tube, can exchange heat with the gas-liquid separator and converge with the working medium at the outlet of the indoor heat exchanger, and can effectively reduce the load of the outdoor heat exchanger.
Further, a one-way valve is arranged on the pressure relief loop and is positioned between the pressure relief capillary tube and the compressor.
The beneficial effect of adopting the further scheme is that: due to the existence of the one-way valve, only the working medium is allowed to converge with the outlet working medium of the indoor heat exchanger through the pressure relief loop, and the working medium cannot flow into the pressure relief loop from the outlet of the indoor heat exchanger.
Furthermore, a pipeline between the pressure relief capillary tube and the one-way valve is wound on the outer wall of the gas-liquid separator.
The beneficial effect of adopting the further scheme is that: the pipeline between the pressure relief capillary tube and the one-way valve is wound on the outer wall of the gas-liquid separator, so that the working medium and the outlet working medium of the indoor heat exchanger can converge after exchanging heat with the gas-liquid separator, and the temperature of the converged working medium is reduced.
The invention also provides a refrigeration cycle method of the high-temperature air conditioner, which comprises the following steps:
s1, under the high-temperature working condition, circulating a part of working medium discharged by the compressor through a circulating loop formed by the outdoor heat exchanger, the capillary tube, the indoor heat exchanger, the gas-liquid separator and the compressor in sequence;
and S2, allowing the other part of the working medium discharged by the compressor to enter a gas-liquid separator through a pressure relief device, and performing gas-liquid separation on the part of the working medium by the gas-liquid separator.
The invention has the beneficial effects that: a part of working medium discharged by the compressor enters gas-liquid separation liquid after passing through the pressure relief device and then returns to the compressor again, so that the working load of the outdoor heat exchanger can be effectively reduced.
On the basis of the technical scheme, the invention can be further improved as follows.
Further, in S2, the other part of the compressed working medium discharged from the compressor sequentially passes through the unloading valve and the pressure relief capillary tube, and then enters the gas-liquid separator.
The beneficial effect of adopting the further scheme is that: when the discharge pressure of the compressor is greater than the set pressure of the unloading valve, the unloading valve starts to work, part of working medium passes through the unloading valve and the pressure relief capillary tube, can exchange heat with the gas-liquid separator and converge with the working medium at the outlet of the indoor heat exchanger, and can effectively reduce the load of the outdoor heat exchanger.
Further, in S2, the compressed working medium passing through the pressure relief capillary tube is converged into the working medium discharged from the indoor heat exchanger through the check valve.
The beneficial effect of adopting the further scheme is that: due to the existence of the one-way valve, only the working medium is allowed to converge with the outlet working medium of the indoor heat exchanger through the pressure relief loop, and the working medium cannot flow into the pressure relief loop from the outlet of the indoor heat exchanger.
Further, in S2, the compressed working medium passing through the pressure relief capillary tube is cooled and then converged into the working medium discharged from the indoor heat exchanger.
The beneficial effect of adopting the further scheme is that: after part of working medium passes through the unloading valve and is throttled by the pressure relief capillary, the working medium exchanges heat with the gas-liquid separator, the temperature of the working medium is reduced, and the efficiency of the compressor is improved.
The invention also provides a high-temperature air conditioner which comprises the refrigeration cycle system.
The invention has the beneficial effects that: according to the invention, a part of working medium discharged by the compressor enters the gas-liquid separation liquid after passing through the pressure relief device, and then returns to the compressor again, so that the working load of the outdoor heat exchanger can be effectively reduced.
Drawings
Fig. 1 is an overall structural view of the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
1. a compressor; 2. an outdoor heat exchanger; 3. a capillary tube; 4. an indoor heat exchanger; 5. a gas-liquid separator; 6. an unloading valve; 7. a pressure relief capillary tube; 8. a one-way valve.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.
Example 1
As shown in fig. 1, the refrigeration cycle system of a high temperature air conditioner of this embodiment includes a compressor 1, an outdoor heat exchanger 2, a capillary tube 3, an indoor heat exchanger 4 and a gas-liquid separator 5 which are connected in sequence to form a loop; the working medium outlet of the compressor 1 is communicated with the working medium inlet of the outdoor heat exchanger 2 through a pipeline, the working medium outlet of the outdoor heat exchanger 2 is communicated with the working medium inlet of the indoor heat exchanger 4 through a capillary tube 3, the working medium outlet of the indoor heat exchanger 4 is communicated with the working medium inlet of the gas-liquid separator 5 through a pipeline, and the working medium outlet of the gas-liquid separator 5 is communicated with the working medium inlet of the compressor 1 through a pipeline. The refrigeration cycle system of the high-temperature air conditioner of the embodiment further comprises a pressure relief device, and two ends of the pressure relief device are respectively communicated with the working medium outlet of the compressor 1 and the working medium inlet of the gas-liquid separator 5 through pipelines. The direction of the arrow in fig. 1 in this embodiment is the flow direction of the working medium.
The refrigeration cycle system of the embodiment is suitable for the high-temperature air conditioner under the existing high-temperature working condition, and the pressure relief device does not work under the ordinary working condition of the high-temperature air conditioner, and the working medium circulates according to the ordinary working condition; only under the high-temperature working condition, the exhaust pressure of the compressor is increased, the pressure relief device starts to work, a part of working medium discharged by the compressor is converged with the working medium at the outlet of the indoor heat exchanger through the pressure relief device, the working load of the outdoor heat exchanger can be properly reduced, the capacity and energy efficiency of the air conditioner under the common working condition can be ensured, and the capacity and energy efficiency under the high-temperature working condition can be improved. The refrigeration cycle system of the embodiment can effectively reduce the working load of the outdoor heat exchanger by enabling a part of working medium discharged by the compressor to enter the gas-liquid separation liquid after passing through the pressure relief device and then return to the compressor again. The refrigeration cycle system of this embodiment has avoided the insufficient condensation that leads to the fact of outdoor heat exchanger heat transfer to blow the problem of water.
As shown in fig. 1, the pressure relief device of this embodiment includes an unloading valve 6 and a pressure relief capillary 7, the compressor 1, the unloading valve 6, the pressure relief capillary 7 and the gas-liquid separator 5 are sequentially connected to form a pressure relief loop, a check valve 8 is disposed on the pressure relief loop, and the check valve 8 is located between the pressure relief capillary 7 and the compressor 1; wherein, the inlet of the unloading valve 6 is communicated with the working medium outlet of the compressor 1 through a pipeline, the outlet of the unloading valve 6 is communicated with one end of a pressure relief capillary tube 7 through a pipeline, the other end of the pressure relief capillary tube 7 is communicated with one end of a one-way valve 8 through a pipeline, and the other end of the one-way valve 8 is communicated with the working medium inlet of the gas-liquid separator 5 through a pipeline; and a pipeline between the pressure relief capillary tube 7 and the one-way valve 8 is wound on the outer wall of the gas-liquid separator 5. In the embodiment, due to the existence of the one-way valve, the working medium is only allowed to converge with the outlet working medium of the indoor heat exchanger through the pressure relief loop, and the working medium cannot flow into the pressure relief loop from the outlet of the indoor heat exchanger. And the pipeline between the pressure relief capillary tube and the one-way valve is wound on the outer wall of the gas-liquid separator, so that the working medium can exchange heat with the gas-liquid separator and then converge with the outlet working medium of the indoor heat exchanger, and the temperature of the converged working medium is reduced.
When the refrigeration cycle system of the embodiment is under a common working condition (the outdoor temperature is 20-40 ℃), the unloading valve is not opened, and the working medium circulates according to the conventional working condition. Under the high-temperature working condition (the outdoor temperature is more than 40 ℃), most of working media discharged from the compressor still flow into the outdoor heat exchanger for conventional circulation, but because the exhaust pressure of the compressor is overlarge under the high-temperature working condition, when the exhaust pressure of the compressor reaches the set pressure, the unloading valve is opened, a small amount of working media flow through the unloading valve, are subjected to pressure relief capillary throttling and gas-liquid separator heat exchange, converge with the working media at the outlet of the indoor heat exchanger in the main refrigeration circulation through the check valve, and flow into the compressor for next circulation after being separated by the gas-liquid separator.
Example 2
As shown in fig. 1, the refrigeration cycle method of a high temperature air conditioner of the present embodiment includes the following steps:
s1, under a high-temperature working condition, circulating a part of working medium discharged by the compressor 1 through a circulating loop formed by the outdoor heat exchanger 2, the capillary tube 3, the indoor heat exchanger 4, the gas-liquid separator 5 and the compressor 1 in sequence;
and S2, allowing the other part of the working medium discharged by the compressor 1 to enter the gas-liquid separator 5 through a pressure relief device, and performing gas-liquid separation on the part of the working medium by the gas-liquid separator 5.
In S2 of this embodiment, another part of the compressed working medium discharged from the compressor 1 sequentially passes through the unloading valve 6 and the pressure relief capillary 7, and is cooled and then converged into the working medium discharged from the indoor heat exchanger 4, so that the temperature of the converged working medium is reduced; a one-way valve is arranged on a pipeline between the pressure relief capillary tube and the compressor so as to prevent working media from flowing into a pressure relief loop from an outlet of the indoor heat exchanger; the embodiment preferably adopts the way between the pressure relief capillary tube and the one-way valve to wind on the outer wall of the gas-liquid separator 5 to exchange heat with the gas-liquid separator 5. In the embodiment, the working medium cooled by the gas-liquid separator is converged into the working medium discharged by the indoor heat exchanger 4 through the one-way valve 8, then enters the gas-liquid separator 5, and finally enters the compressor 1. The direction of the arrow in fig. 1 in this embodiment is the flow direction of the working medium.
The refrigeration cycle method of the embodiment is suitable for the high-temperature air conditioner under the existing high-temperature working condition, and the pressure relief device does not work under the ordinary working condition of the high-temperature air conditioner, and the working medium circulates according to the ordinary working condition; only under the high-temperature working condition, the exhaust pressure of the compressor is increased, the pressure relief device starts to work, a part of working medium discharged by the compressor is converged with the working medium at the outlet of the indoor heat exchanger through the pressure relief device, the working load of the outdoor heat exchanger can be properly reduced, the capacity and energy efficiency of the air conditioner under the common working condition can be ensured, and the capacity and energy efficiency under the high-temperature working condition can be improved. In the refrigeration cycle method, a part of working medium discharged by the compressor enters the gas-liquid separation liquid after passing through the pressure relief device, and then returns to the compressor again, so that the working load of the outdoor heat exchanger can be effectively reduced. The refrigeration cycle method of the embodiment avoids the problem of condensation and water blowing caused by insufficient heat exchange of the outdoor heat exchanger.
In the refrigeration cycle method of the embodiment, when the normal working condition (the outdoor temperature is 20-40 ℃), the unloading valve is not opened, and the working medium circulates according to the normal working condition. Under the high-temperature working condition (the outdoor temperature is more than 40 ℃), most of working media discharged from the compressor still flow into the outdoor heat exchanger for conventional circulation, but because the exhaust pressure of the compressor is overlarge under the high-temperature working condition, when the exhaust pressure of the compressor reaches the set pressure, the unloading valve is opened, a small amount of working media flow through the unloading valve, are subjected to pressure relief capillary throttling and gas-liquid separator heat exchange, converge with the working media at the outlet of the indoor heat exchanger in the main refrigeration circulation through the check valve, and flow into the compressor for next circulation after being separated by the gas-liquid separator.
Example 3
As shown in fig. 1, a high temperature air conditioner of the present embodiment includes the refrigeration cycle system described in embodiment 1. The direction of the arrows in fig. 1 is the flow direction of the working medium.
The working principle of the invention is as follows: under the common working condition (the outdoor temperature is 20-40 ℃), the unloading valve does not work and is in a closed state, and the working medium circulates according to the conventional working condition; under the high-temperature working condition (the outdoor temperature is more than 40 ℃), the discharge pressure of the compressor is more than the set pressure of the unloading valve, most of working media discharged from the compressor 1 still flow into the outdoor heat exchanger for conventional circulation, the unloading valve is opened and is in a working state, a small amount of working media pass through the unloading valve, are subjected to heat exchange with the gas-liquid separator through pressure relief capillary throttling, are converged with the working media at the outlet of the indoor heat exchanger in the main circulation through the one-way valve, and flow into the compressor through the gas-liquid separator for circulation.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.
Furthermore, the terms "first", "second", and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (3)
1. A refrigeration cycle system of a high-temperature air conditioner comprises a compressor (1), an outdoor heat exchanger (2), a capillary tube (3), an indoor heat exchanger (4) and a gas-liquid separator (5) which are sequentially connected to form a loop; the device is characterized by further comprising a pressure relief device, wherein two ends of the pressure relief device are respectively communicated with a working medium outlet of the compressor (1) and a working medium inlet of the gas-liquid separator (5) through pipelines; the pressure relief device comprises an unloading valve (6) and a pressure relief capillary tube (7), and the compressor (1), the unloading valve (6), the pressure relief capillary tube (7) and the gas-liquid separator (5) are sequentially connected to form a pressure relief loop; a one-way valve (8) is arranged on the pressure relief loop, and the one-way valve (8) is positioned between the pressure relief capillary tube (7) and the compressor (1); the inlet of the unloading valve is communicated with the working medium outlet of the compressor through a pipeline, the outlet of the unloading valve is communicated with one end of a pressure relief capillary tube through a pipeline, the other end of the pressure relief capillary tube is communicated with one end of a one-way valve through a pipeline, and the other end of the one-way valve is communicated with the working medium inlet of the gas-liquid separator through a pipeline; the pipeline between the pressure relief capillary tube (7) and the one-way valve (8) is wound on the outer wall of the gas-liquid separator (5);
under the common working condition of the high-temperature air conditioner, when the outdoor temperature is 20-40 ℃, the pressure relief device does not work, and the working medium circulates according to the conventional working condition; only under the high-temperature working condition, when the outdoor temperature is more than 40 ℃, the exhaust pressure of the compressor is increased, the pressure relief device starts to work, and a part of working medium discharged by the compressor is converged with the working medium at the outlet of the indoor heat exchanger through the pressure relief device; most working media discharged from the compressor still flow into the outdoor heat exchanger for conventional circulation, but due to the fact that the exhaust pressure of the compressor is too large under the high-temperature working condition, when the exhaust pressure of the compressor reaches the set pressure, the unloading valve is opened, a small amount of working media pass through the unloading valve, are subjected to pressure relief capillary throttling and gas-liquid separator heat exchange, converge with the working media at the outlet of the indoor heat exchanger in the main refrigeration circulation through the one-way valve, are separated through the gas-liquid separator, and flow into the compressor for next circulation.
2. A refrigeration cycle method of a high-temperature air conditioner is characterized by comprising the following steps:
s1, under the high-temperature working condition, when the outdoor temperature is more than 40 ℃, circulating a part of the working medium discharged by the compressor (1) through a circulating loop formed by the outdoor heat exchanger (2), the capillary tube (3), the indoor heat exchanger (4), the gas-liquid separator (5) and the compressor (1) in sequence;
s2, allowing the other part of the working medium discharged by the compressor (1) to enter a gas-liquid separator (5) through a pressure relief device, and performing gas-liquid separation on the part of the working medium by the gas-liquid separator (5); the other part of the compressed working medium discharged by the compressor (1) sequentially passes through the unloading valve (6) and the pressure relief capillary tube (7) and then enters the gas-liquid separator (5); the compressed working medium passing through the pressure relief capillary tube (7) is converged into the working medium discharged by the indoor heat exchanger (4) through a one-way valve (8); in S2, the compressed working medium passing through the pressure relief capillary (7) is cooled and then converged into the working medium discharged by the indoor heat exchanger (4);
most working media discharged from the compressor still flow into the outdoor heat exchanger to carry out conventional circulation, but due to the fact that the exhaust pressure of the compressor is overlarge under the high-temperature working condition, when the exhaust pressure of the compressor reaches the set pressure, the unloading valve is opened, a small amount of working media pass through the unloading valve, are subjected to pressure relief capillary throttling and gas-liquid separator heat exchange, converge with the working media at the outlet of the indoor heat exchanger in the main refrigeration circulation through the one-way valve, are separated through the gas-liquid separator, and flow into the compressor to carry out next circulation.
3. A high temperature air conditioner, characterized by comprising the refrigeration cycle system according to claim 1.
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| CN201710014546.6A CN106802036B (en) | 2017-01-09 | 2017-01-09 | Refrigeration cycle system and method of high-temperature air conditioner and high-temperature air conditioner |
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| CN201710014546.6A CN106802036B (en) | 2017-01-09 | 2017-01-09 | Refrigeration cycle system and method of high-temperature air conditioner and high-temperature air conditioner |
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| CN106802036B true CN106802036B (en) | 2019-12-27 |
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| CN110260553B (en) * | 2019-06-10 | 2021-12-21 | 广东美的制冷设备有限公司 | Air conditioner and control method thereof |
| CN110542226A (en) * | 2019-08-30 | 2019-12-06 | 郑州之铂智能科技有限公司 | Control system for widening use range of air-cooled fixed-frequency heat pump unit |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102829583A (en) * | 2012-09-25 | 2012-12-19 | 青岛海尔空调电子有限公司 | Pipeline structure for reducing opening noise of pressure unloading valve of air conditioning system |
| CN204006307U (en) * | 2014-04-21 | 2014-12-10 | 广东美的集团芜湖制冷设备有限公司 | The air-conditioner with unloading function |
| CN205102224U (en) * | 2015-08-27 | 2016-03-23 | 江苏天舒电器有限公司 | Adopt warm pump developments controlling means |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202119169U (en) * | 2011-06-03 | 2012-01-18 | 合肥通用制冷设备有限公司 | Refrigerating system of air-conditioner with decompression branch |
| CN205174909U (en) * | 2015-10-27 | 2016-04-20 | 广东美的暖通设备有限公司 | Air conditioning system |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102829583A (en) * | 2012-09-25 | 2012-12-19 | 青岛海尔空调电子有限公司 | Pipeline structure for reducing opening noise of pressure unloading valve of air conditioning system |
| CN204006307U (en) * | 2014-04-21 | 2014-12-10 | 广东美的集团芜湖制冷设备有限公司 | The air-conditioner with unloading function |
| CN205102224U (en) * | 2015-08-27 | 2016-03-23 | 江苏天舒电器有限公司 | Adopt warm pump developments controlling means |
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