CN115435443B - Non-condensable gas evacuation method and device in air conditioning system and air conditioning system - Google Patents
Non-condensable gas evacuation method and device in air conditioning system and air conditioning system Download PDFInfo
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- CN115435443B CN115435443B CN202211016517.0A CN202211016517A CN115435443B CN 115435443 B CN115435443 B CN 115435443B CN 202211016517 A CN202211016517 A CN 202211016517A CN 115435443 B CN115435443 B CN 115435443B
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 50
- 238000000034 method Methods 0.000 title claims abstract description 35
- 230000009471 action Effects 0.000 claims abstract description 39
- 239000007789 gas Substances 0.000 claims description 53
- 238000005057 refrigeration Methods 0.000 claims description 4
- 230000003213 activating effect Effects 0.000 claims 1
- 238000012423 maintenance Methods 0.000 abstract description 4
- 230000006872 improvement Effects 0.000 description 6
- 230000015654 memory Effects 0.000 description 4
- 238000010926 purge Methods 0.000 description 4
- 239000003507 refrigerant Substances 0.000 description 4
- 230000007704 transition Effects 0.000 description 4
- 238000013022 venting Methods 0.000 description 4
- 238000004134 energy conservation Methods 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000003491 array Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/32—Responding to malfunctions or emergencies
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/88—Electrical aspects, e.g. circuits
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2140/00—Control inputs relating to system states
- F24F2140/10—Pressure
- F24F2140/12—Heat-exchange fluid pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2140/00—Control inputs relating to system states
- F24F2140/20—Heat-exchange fluid temperature
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention provides a method and a device for exhausting non-condensable gas in an air conditioning system and the air conditioning system, relates to the technical field of air conditioning, and mainly aims to solve the problem that the non-condensable gas mixed into the air conditioning system cannot be identified and exhausted in the prior art. The method for evacuating the non-condensable gas in the air conditioning system comprises the following steps: acquiring system data, wherein the system data comprises high-pressure data H, low-pressure data L and compressor exhaust temperature T; judging whether noncondensable gas exists in the system or not based on the acquired system data; if there is non-condensable gas in the system, the evacuation action is executed. The technical scheme provided by the invention can identify whether noncondensable gas exists in the system and evacuate the noncondensable gas, so that the compressor is protected, the air conditioning system can operate efficiently and reliably, the energy efficiency of the system and the service life of the unit are effectively improved, and the workload of after-sale maintenance personnel is reduced.
Description
Technical Field
The present invention relates to the field of air conditioning technologies, and in particular, to a method and an apparatus for evacuating non-condensable gas in an air conditioning system, and an air conditioning system.
Background
The multi-split air conditioner has the advantages of long pipeline, large drop height, more internal machines, huge installation engineering quantity and frequent occurrence of non-condensable gases such as mixed air in the actual use process. Because air can not be condensed into liquid under specific temperature and pressure conditions in the condenser, the problems of increased power consumption, poor refrigerating effect, poor lubricating effect and the like of a unit can be caused when the air conditioner is used, and even the air conditioner system is abnormal and the motor of the compressor is damaged when the air conditioner is serious.
The prior art lacks a method for identifying and evacuating non-condensable gases such as air mixed into an air conditioning system.
Disclosure of Invention
The invention aims to provide a method and a device for exhausting noncondensable gas in an air conditioning system and the air conditioning system, so as to solve the problem that the noncondensable gas mixed in the air conditioning system cannot be identified and exhausted in the prior art. The preferred technical solutions of the technical solutions provided by the present invention can produce a plurality of technical effects described below.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the invention provides a method for evacuating noncondensable gas in an air conditioning system, which comprises the following steps:
Acquiring system data, wherein the system data comprises high-pressure data H, low-pressure data L and compressor exhaust temperature T;
judging whether noncondensable gas exists in the system or not based on the acquired system data;
If there is non-condensable gas in the system, the evacuation action is executed.
On the basis of the technical scheme, the invention can be improved as follows.
As a further improvement of the present invention, determining whether there is a noncondensable gas in the system based on the acquired system data includes:
the preset data fluctuation amplitude value comprises a preset high-pressure data fluctuation amplitude delta H, a preset low-pressure data fluctuation amplitude delta L and a preset compressor exhaust temperature fluctuation amplitude delta T;
executing a comparison action, wherein the comparison action compares the fluctuation amplitude value of the acquired system data with the preset data fluctuation amplitude value;
And when the fluctuation amplitude value of the system data is larger than the preset data fluctuation amplitude value, judging that noncondensable gas exists in the system.
As a further improvement of the present invention, there is also included:
and when the high-pressure data, the low-pressure data and the compressor discharge temperature all rise and fluctuate, performing a comparison action.
As a further improvement of the invention, performing the purging action includes:
automatically stopping the system and standing for N hours, wherein N is a positive number;
Acquiring the high-pressure data of the system, and comparing the high-pressure data with the saturation pressure P b at the current ambient temperature;
and executing a restarting action or an exhausting action according to the comparison result.
As a further improvement of the present invention, the restart action or the exhaust action is performed according to the comparison result, including:
when the high-voltage data of the system is smaller than P b, restarting the air conditioning system;
And otherwise, executing the exhausting action.
As a further development of the invention, the venting action is the activation of a venting device located on the condenser.
As a further improvement of the invention, the exhaust device is an electric exhaust valve which is communicated with the capillary tube.
As a further improvement of the invention, the system is a refrigeration system.
The invention also provides a non-condensable gas evacuating device in the air conditioning system, which comprises the following components:
The data acquisition module is used for acquiring system data, wherein the system data comprises high-pressure data H, low-pressure data L and compressor exhaust temperature T;
The judging module can judge whether noncondensable gas exists in the system based on the acquired system data;
And the emptying module is used for executing the emptying action.
The invention also provides an air conditioning system, which comprises a condenser, wherein an exhaust device communicated with the capillary tube is arranged on the condenser.
The invention also provides an air conditioner, comprising:
one or more memories having executable programs stored thereon;
One or more processors configured to execute the executable program in the storage to implement the steps of any of the methods described above.
Compared with the prior art, the technical scheme provided by the preferred embodiment of the invention has the following beneficial effects:
Whether noncondensable gas exists in the system or not can be identified through system data, and the noncondensable gas is emptied, so that a compressor is protected, an air conditioning system can operate efficiently and reliably, the energy efficiency of the system and the service life of a unit are effectively improved, and the workload of after-sales maintenance personnel is reduced; in addition, the method can also improve the refrigerating efficiency of the air conditioner to a certain extent, thereby achieving the purpose of energy conservation.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a flow chart illustrating a method of purging non-condensable gases within an air conditioning system according to an exemplary embodiment;
FIG. 2 is a flow chart illustrating a method of purging non-condensable gases within an air conditioning system according to another exemplary embodiment;
FIG. 3 is a schematic diagram illustrating a non-condensable gas evacuation device within an air conditioning system according to an exemplary embodiment;
Fig. 4 is a schematic structural view of an air conditioning system according to an exemplary embodiment;
fig. 5 is an enlarged view of the structure of the region a in fig. 4.
In the figure: 1. a condenser; 11. a gas collecting tube; 12. a heat exchanger; 13. an exhaust valve; 14. a capillary tube; 15. a shunt; 2. a compressor; 3. an evaporator; 4. a throttle device; 5. a high-pressure sensor; 6. a low pressure sensor.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, based on the examples herein, which are within the scope of the invention as defined by the claims, will be within the scope of the invention as defined by the claims.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present invention can be understood as appropriate by those of ordinary skill in the art.
Example 1:
As shown in fig. 1, the present invention provides a method for evacuating non-condensable gas in an air conditioning system, comprising:
step S1: acquiring system data, wherein the system data comprises high-pressure data H, low-pressure data L and compressor exhaust temperature T;
step S2: judging whether noncondensable gas exists in the system or not based on the acquired system data;
step S3: if there is non-condensable gas in the system, the evacuation action is executed.
It should be noted that the technical solution provided in this embodiment is applicable to an air conditioning apparatus, where the air conditioning apparatus may be a traditional on-hook or cabinet machine, or may be a multi-split air conditioner. It is particularly noted that the above method is applicable to refrigeration systems and enables the identification and evacuation of air (i.e., non-condensable gases) within the refrigeration system.
When the air conditioning system is installed, the air conditioning system is started, cooled and operated for a certain time without changing the load factor, and then step S1 can be executed.
Specifically, the above-mentioned "running for a certain time" is 1 hour in this embodiment.
As an alternative embodiment, determining whether there is a non-condensable gas in the system based on the acquired system data includes:
step S21: the preset data fluctuation amplitude value comprises a preset high-pressure data fluctuation amplitude delta H, a preset low-pressure data fluctuation amplitude delta L and a preset compressor exhaust temperature fluctuation amplitude delta T;
Step S22: executing a comparison action, wherein the comparison action compares the obtained fluctuation amplitude value of the system data with a preset data fluctuation amplitude value;
Step S23: when the fluctuation amplitude value of the system data is larger than the preset data fluctuation amplitude value, judging that noncondensable gas exists in the system.
As an alternative embodiment, further comprising:
When the high pressure data, the low pressure data and the compressor discharge temperature all rise and fluctuate, they are compared with preset data fluctuation values.
In the present embodiment, the minimum value of the high pressure data in the surge state is H 1, the maximum value is H 2, the minimum value of the low pressure data is L 1, the maximum value is L 2, the minimum value of the compressor discharge temperature is T 1, the maximum value is T 2.
When the comparison is performed, the data is compared with a preset data fluctuation amplitude value.
In this embodiment, when |H 2-H1 | > ΔH, |L2-L1| > ΔL, and |T 2-T1 | > ΔT, it is indicated that air (i.e., non-condensable gas) is mixed in the system, and the evacuation operation needs to be started. Otherwise, it indicates that all the systems are normal, and the systems can continue to operate normally.
As an alternative embodiment, performing the purging action includes:
step S31: automatically stopping the system and standing for N hours, wherein N is a positive number;
Step S32: acquiring high-pressure data of the system, and comparing the high-pressure data with saturation pressure P b at the current ambient temperature;
Step S33: and executing a restarting action or an exhausting action according to the comparison result.
Specifically, the value of N can be determined according to the temperature, and is generally 2, that is, after the system is stopped, the system is left for 2 hours, and then the high-voltage data H 3 of the system can be detected again.
As an alternative embodiment, the performing a restart action or an exhaust action according to the comparison result includes:
Step S331: when the high-voltage data H 3 of the system is smaller than P b, performing restarting operation, and restarting the air conditioning system;
Step S332: when the high-pressure data H 3 of the system is greater than P b, an exhaust action is performed.
When the high-pressure data H 3 detected by the system is smaller than P b, the system is determined to have no noncondensable gas, so that the unit can be recovered to be normal, automatic starting is completed, and normal operation is maintained; when the detected high pressure data is greater than P b, a certain amount of non-condensable gas is still present in the system, and the exhausting action is required to be performed until the high pressure data H 3 is less than P b.
The overall operational flow of the above method is shown in fig. 2.
As an alternative embodiment, the venting action is to activate a venting device located on the condenser.
Specifically, the exhaust device is an electric exhaust valve which is communicated with the capillary tube.
It can be understood that the technical scheme provided by the embodiment can judge whether the non-condensable gas exists in the system and discharge the non-condensable gas in the system by comparing and judging the system data, so that the compressor is protected, and the air conditioning system can operate efficiently and reliably.
Example 2:
as shown in fig. 3, the present invention further provides a non-condensable gas evacuating device in an air conditioning system, which comprises:
The data acquisition module is used for acquiring system data, wherein the system data comprises high-pressure data H, low-pressure data L and compressor exhaust temperature T;
The judging module can judge whether noncondensable gas exists in the system based on the acquired system data;
And the emptying module is used for executing the emptying action.
It should be noted that the technical solution provided in this embodiment is applicable to an air conditioning system, where the air conditioning system may be one or more of a hanging machine, a cabinet machine, a multi-split air conditioner, and the like.
The implementation manner and beneficial effects of each module in this embodiment can be referred to the description of the related steps in the first embodiment, which is not repeated.
It can be understood that, in the technical scheme provided by the embodiment, by acquiring system data and judging the data by combining preset data, whether noncondensable gas is mixed in the system is determined; after the non-condensable gas exists in the system, the non-condensable gas in the system can be discharged through the evacuation module, so that the compressor is protected, and the air conditioning system can operate efficiently and reliably. Meanwhile, the scheme can also effectively improve the energy efficiency of the system and the service life of the unit, and reduce the workload of after-sales maintenance personnel; in addition, the method can also improve the refrigerating efficiency of the air conditioner to a certain extent, thereby achieving the purpose of energy conservation.
Example 3:
As shown in fig. 4, the present invention also provides an air conditioning system, which comprises a condenser 1, and an exhaust device communicated with a capillary tube 14 is arranged on the condenser 1.
Specifically, the exhaust device is an electric exhaust valve 13. In addition, the electric exhaust valve 13 is positioned on a transition pipe connected with the capillary tube 14, and the transition pipe is connected with the capillary tube 14 and the heat exchanger 12; the electric exhaust valve 13 communicates the transition pipe with the external environment.
The condenser 1 is further provided with a gas collecting pipe 11, a heat exchanger 12 and a flow divider 15, as shown in fig. 4. In the cold state, the refrigerant flows through the heat exchanger 12, through the transition pipe and the capillary tube 14, and to the flow divider 15, namely, in the direction indicated by the arrow in the figure.
After the refrigerant is mixed with non-condensable gas, the condensing pressure of the refrigerating system is increased, the condensing temperature is increased, the exhaust temperature of the compressor is increased, the lubricating effect is affected, and the motor of the refrigerating compressor is burnt when serious. However, since the non-condensable gas is easily separated from the refrigerant naturally at a low temperature in a state where the system is left standing, and is collected at a high position (above) of the system in consideration of the fact that the air specific gravity is smaller than that of the refrigerant, the above-mentioned electric discharge valve should be disposed at a position as shown in fig. 4 to 5 (i.e., at the highest position of the system). When the air temperature is the lowest and the system downtime is the longest, the electric exhaust valve is started to realize the effective discharge of the noncondensable gas.
The air conditioning system comprises a compressor 2, an evaporator 3, a throttling device 4, a high pressure sensor 5 and a low pressure sensor 6, wherein an environment temperature sensing bulb is arranged on the condenser 1, and an exhaust temperature sensing bulb is arranged between the condenser 1 and the compressor 2.
Example 4:
the invention also provides an air conditioner, comprising:
one or more memories having executable programs stored thereon;
One or more processors configured to execute the executable program in the storage to implement the steps of any of the methods described above.
It can be understood that the technical scheme provided by the embodiment can judge whether the non-condensable gas exists in the system and discharge the non-condensable gas in the system by comparing and judging the system data, so that the compressor is protected, and the air conditioning system can operate efficiently and reliably. Meanwhile, the scheme can also effectively improve the energy efficiency of the system and the service life of the unit, and reduce the workload of after-sales maintenance personnel; in addition, the method can also improve the refrigerating efficiency of the air conditioner to a certain extent, thereby achieving the purpose of energy conservation.
It is to be understood that the same or similar parts in the above embodiments may be referred to each other, and that in some embodiments, the same or similar parts in other embodiments may be referred to.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and further implementations are included within the scope of the preferred embodiment of the present invention in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present invention.
It is to be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above-described embodiments, the various steps or methods may be implemented in software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, may be implemented using any one or combination of the following techniques, as is well known in the art: discrete logic circuits having logic gates for implementing logic functions on data signals, application specific integrated circuits having suitable combinational logic gates, programmable Gate Arrays (PGAs), field Programmable Gate Arrays (FPGAs), and the like.
Those of ordinary skill in the art will appreciate that all or a portion of the steps carried out in the method of the above-described embodiments may be implemented by a program to instruct related hardware, where the program may be stored in a computer readable storage medium, and where the program, when executed, includes one or a combination of the steps of the method embodiments.
In addition, each functional unit in the embodiments of the present application may be integrated in one processing module, or each unit may exist alone physically, or two or more units may be integrated in one module. The integrated modules may be implemented in hardware or in software functional modules. The integrated modules may also be stored in a computer readable storage medium if implemented in the form of software functional modules and sold or used as a stand-alone product.
The above-mentioned storage medium may be a read-only memory, a magnetic disk or an optical disk, or the like.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means 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 present application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present application have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the application, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the application.
Claims (9)
1. A method for evacuating non-condensable gas in an air conditioning system, comprising:
Acquiring system data, wherein the system data comprises high-pressure data H, low-pressure data L and compressor exhaust temperature T;
judging whether noncondensable gas exists in the system based on the acquired system data comprises the following steps: the preset data fluctuation amplitude value comprises a preset high-pressure data fluctuation amplitude delta H, a preset low-pressure data fluctuation amplitude delta L and a preset compressor exhaust temperature fluctuation amplitude delta T; executing a comparison action, wherein the comparison action compares the fluctuation amplitude value of the acquired system data with the preset data fluctuation amplitude value; when the fluctuation amplitude value of the system data is larger than the preset data fluctuation amplitude value, judging that noncondensable gas exists in the system;
If there is non-condensable gas in the system, the evacuation action is executed.
2. The method for evacuating non-condensable gas within an air conditioning system according to claim 1, further comprising:
and when the high-pressure data, the low-pressure data and the compressor discharge temperature all rise and fluctuate, performing a comparison action.
3. The method of evacuating non-condensable gas within an air conditioning system according to claim 1, wherein performing the evacuating action comprises:
automatically stopping the system and standing for N hours, wherein N is a positive number;
Acquiring the high-pressure data of the system, and comparing the high-pressure data with the saturation pressure P b at the current ambient temperature;
and executing a restarting action or an exhausting action according to the comparison result.
4. A method of evacuating non-condensable gas within an air conditioning system according to claim 3, wherein performing a restart action or an evacuation action based on the comparison result comprises:
when the high-voltage data of the system is smaller than P b, restarting the air conditioning system;
And otherwise, executing the exhausting action.
5. The method of claim 4, wherein the exhausting action is activating an exhaust located on the condenser.
6. The method of claim 5, wherein the vent is an electrically operated vent valve in communication with a capillary tube.
7. A method of evacuating non-condensable gases within an air conditioning system according to any of claims 1-6, wherein the system is a refrigeration system.
8. A non-condensable gas evacuating device in an air conditioning system, comprising:
The data acquisition module is used for acquiring system data, wherein the system data comprises high-pressure data H, low-pressure data L and compressor exhaust temperature T;
The judging module can judge whether noncondensable gas exists in the system based on the acquired system data; the method is particularly used for presetting data fluctuation amplitude values, including preset high-pressure data fluctuation amplitude delta H, low-pressure data fluctuation amplitude delta L and compressor exhaust temperature fluctuation amplitude delta T; executing a comparison action, wherein the comparison action compares the fluctuation amplitude value of the acquired system data with the preset data fluctuation amplitude value; when the fluctuation amplitude value of the system data is larger than the preset data fluctuation amplitude value, judging that noncondensable gas exists in the system;
And the emptying module is used for executing the emptying action.
9. An air conditioning system is characterized by comprising a condenser, wherein an exhaust device communicated with a capillary tube is arranged on the condenser; the air conditioning system is used for executing the method for exhausting the non-condensable gas in the air conditioning system according to any one of claims 1 to 7.
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| CN202211016517.0A CN115435443B (en) | 2022-08-24 | 2022-08-24 | Non-condensable gas evacuation method and device in air conditioning system and air conditioning system |
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| CN202211016517.0A CN115435443B (en) | 2022-08-24 | 2022-08-24 | Non-condensable gas evacuation method and device in air conditioning system and air conditioning system |
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| CN115435443B true CN115435443B (en) | 2024-08-16 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2853517A1 (en) * | 2011-10-28 | 2013-05-02 | Armstrong Global Holdings, Inc. | Steam quality measurement system |
| CN108344084A (en) * | 2017-01-23 | 2018-07-31 | 约克（无锡）空调冷冻设备有限公司 | The method for exhausting of exhaust apparatus, refrigerated air-conditioning system and incoagulable gas |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8055453B2 (en) * | 2008-09-19 | 2011-11-08 | Raytheon Company | Sensing and estimating in-leakage air in a subambient cooling system |
| JP6875097B2 (en) * | 2016-10-21 | 2021-05-19 | 三菱重工サーマルシステムズ株式会社 | A method of controlling an bleed air device and a device that executes this method. |
| KR102115080B1 (en) * | 2018-04-27 | 2020-05-25 | 한동대학교 산학협력단 | Method for improving condenser performance by reducing the effect of non-condensable gas and facility therefor |
| KR102163871B1 (en) * | 2019-03-14 | 2020-10-12 | 박진규 | Driving control method of gas distribution part for refrigeration |
| CN110345672B (en) * | 2019-07-16 | 2021-03-12 | 珠海格力电器股份有限公司 | Non-condensable gas purification device, refrigeration system and method |
| CN110986438A (en) * | 2019-12-18 | 2020-04-10 | 珠海格力电器股份有限公司 | Air conditioning unit with function of cleaning non-condensable gas |
| CN113091172A (en) * | 2021-04-25 | 2021-07-09 | 福州市炜悦机电工程有限公司 | Non-condensable gas discharging device of air conditioning system and control method |
| CN215179841U (en) * | 2021-05-19 | 2021-12-14 | 山东新华医疗器械股份有限公司 | Temperature difference type non-condensable gas detection device |
| CN113959124A (en) * | 2021-12-22 | 2022-01-21 | 顿汉布什(中国)工业有限公司 | Non-condensable gas purification system and purification method thereof |
-
2022
- 2022-08-24 CN CN202211016517.0A patent/CN115435443B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2853517A1 (en) * | 2011-10-28 | 2013-05-02 | Armstrong Global Holdings, Inc. | Steam quality measurement system |
| CN108344084A (en) * | 2017-01-23 | 2018-07-31 | 约克（无锡）空调冷冻设备有限公司 | The method for exhausting of exhaust apparatus, refrigerated air-conditioning system and incoagulable gas |
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