CN116734515A - Air conditioning system comprising gas-liquid separator and control method - Google Patents
Air conditioning system comprising gas-liquid separator and control method Download PDFInfo
- Publication number
- CN116734515A CN116734515A CN202310596703.4A CN202310596703A CN116734515A CN 116734515 A CN116734515 A CN 116734515A CN 202310596703 A CN202310596703 A CN 202310596703A CN 116734515 A CN116734515 A CN 116734515A
- Authority
- CN
- China
- Prior art keywords
- liquid
- gas
- liquid separator
- viewing mirror
- conditioning system
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000007788 liquid Substances 0.000 title claims abstract description 193
- 238000004378 air conditioning Methods 0.000 title claims abstract description 54
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000007789 sealing Methods 0.000 claims abstract description 50
- 239000003507 refrigerant Substances 0.000 claims abstract description 38
- 238000010438 heat treatment Methods 0.000 claims description 84
- 238000000605 extraction Methods 0.000 claims description 24
- 239000011521 glass Substances 0.000 claims description 16
- 230000002265 prevention Effects 0.000 claims description 10
- 229920003023 plastic Polymers 0.000 claims description 5
- 238000004891 communication Methods 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 19
- 238000010257 thawing Methods 0.000 abstract description 8
- 230000008569 process Effects 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 6
- 238000005086 pumping Methods 0.000 description 6
- 239000007791 liquid phase Substances 0.000 description 5
- 238000000926 separation method Methods 0.000 description 3
- 238000012795 verification Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000012071 phase Substances 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 239000010725 compressor oil Substances 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000005341 toughened glass Substances 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- 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
- F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
-
- 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
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Power Engineering (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Analytical Chemistry (AREA)
- Human Computer Interaction (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention relates to the technical field of air conditioners, in particular to an air conditioning system comprising a gas-liquid separator and a control method thereof, and aims to solve the problem that in the process of frosting and defrosting an outdoor unit heat exchanger of the existing air conditioning system, the temperature of a refrigerant in the gas-liquid separator is low, so that water vapor in the environment frosts on the surface of a liquid viewing mirror, and the observation effect on the liquid level of the refrigerant in the gas-liquid separator is affected. The air conditioning system comprising the gas-liquid separator comprises the liquid viewing mirror for observing the liquid level of the refrigerant in the gas-liquid separator and the anti-frosting device for preventing the liquid viewing mirror from frosting, wherein the anti-frosting device comprises the transparent sealing head, the anti-frosting device can be connected with the liquid viewing mirror and form a closed space between the transparent sealing head and the liquid viewing mirror, and the liquid level of the refrigerant in the gas-liquid separator can be observed through the transparent sealing head and the liquid viewing mirror, so that the closed space between the transparent sealing head and the liquid viewing mirror can isolate water vapor in air from contacting with the liquid viewing mirror, and further frosting on the liquid viewing mirror is avoided.
Description
Technical Field
The invention relates to the technical field of air conditioners, and particularly provides an air conditioning system comprising a gas-liquid separator and a control method.
Background
The existing air conditioning system is generally provided with a gas-liquid separator, and the gas-liquid separator has the main functions of separating gas-phase and liquid-phase refrigerants and storing part of the refrigerants in the system, so that the liquid impact of the compressor is prevented, the dilution of compressor oil caused by excessive liquid-phase refrigerants returned to the compressor is avoided, and the service life of the compressor is further influenced.
The newly developed gas-liquid separator (hereinafter referred to as "gas fraction") needs to be experimentally verified when applied to an air conditioning system, wherein the liquid storage capacity of the gas fraction is a major issue of verification. When the unit operates under a low-temperature heating working condition (or other working conditions that the outdoor heat exchanger is easy to frost), the outdoor heat exchanger can be subjected to frosting and defrosting due to the fact that the outdoor side is in a low-temperature high-humidity environment, when the two phenomena (frosting and defrosting) occur, the dryness of the refrigerant entering the air from the outdoor heat exchanger is low due to insufficient heat exchange, so that liquid refrigerant can be accumulated in the air component, once the liquid level of the refrigerant does not exceed the lowest position of the air outlet pipe of the air separation pipe, the compressor can be impacted by the fact that too much liquid refrigerant is inhaled, and then the compressor is damaged, the liquid level of the refrigerant needs to be observed through the liquid-viewing mirror, and therefore the liquid storage capacity of each operation moment of the air separation is judged, but at the moment, the temperature of the refrigerant in the air separation is usually low, and water vapor in the environment can be condensed/frosted on the surface of the liquid-viewing mirror, so that the observation effect is affected.
Accordingly, there is a need in the art for a new air conditioning system including a gas-liquid separator and control method to solve the existing problems.
Disclosure of Invention
The invention aims to solve the technical problems that in the process of frosting and defrosting of an outdoor unit heat exchanger of the existing air conditioning system, the temperature of the refrigerant in the gas-liquid separator is low, so that water vapor in the environment is condensed/frosted on the surface of a liquid viewing mirror, and the observation effect on the liquid level of the refrigerant in the gas-liquid separator is affected.
In a first aspect, the present invention provides an air conditioning system including a gas-liquid separator, the gas-liquid separator including a liquid viewing mirror for observing a liquid level of a refrigerant in the gas-liquid separator and an anti-frosting device for preventing frosting of the liquid viewing mirror, the anti-frosting device including a transparent head, the anti-frosting device being capable of being connected to the liquid viewing mirror and forming a closed space between the transparent head and the liquid viewing mirror, the liquid level of the refrigerant in the gas-liquid separator being capable of being observed through the transparent head and the liquid viewing mirror.
In a specific embodiment of the air conditioning system including a gas-liquid separator, an observation channel is provided on the gas-liquid separator main body, the liquid viewing mirror is embedded in the observation channel, the frost prevention device further includes a sleeve and a first fixing ring, the transparent sealing head can be sleeved outside the sleeve, the first fixing ring can be sleeved outside the transparent sealing head so that the transparent sealing head is fixed at one end of the sleeve, and the other end of the sleeve can be sleeved on the observation channel.
In a specific embodiment of the air conditioning system including a gas-liquid separator, the frost prevention device further includes an air extraction device, the air extraction device is communicated with the enclosed space, and a valve is disposed on an extraction pipeline between the air extraction device and the enclosed space.
In a specific embodiment of the air conditioning system including a gas-liquid separator, the anti-frosting device further includes a sealing ring and a second fixing ring, wherein the sealing ring can be fixed on the other end of the sleeve through the second fixing ring, so that the sealing ring is sleeved at the joint of the sleeve and the observation channel.
In the specific embodiment of the air conditioning system including the gas-liquid separator, the valve is a one-way valve, and/or the air extracting device is an air pump.
In a specific embodiment of the air conditioning system including a gas-liquid separator, an observation channel is provided on the gas-liquid separator main body, the liquid-viewing mirror is embedded in the observation channel, and the transparent seal head is embedded in the observation channel and is disposed between the liquid-viewing mirror and the gas-liquid separator main body, so that a closed space is formed between the transparent seal head and the liquid-viewing mirror.
In a specific embodiment of the air conditioning system including a gas-liquid separator, the frost prevention device further includes an air extraction device, the air extraction device is communicated with the enclosed space, a valve is disposed on an extraction line between the air extraction device and the enclosed space, and/or the transparent seal head is any one of transparent plastic or transparent glass.
In the specific embodiment of the air conditioning system comprising the gas-liquid separator, a heating belt is wound on the outer side of the sleeve.
The invention also provides a control method for an air conditioning system comprising a gas-liquid separator, wherein the gas-liquid separator comprises a liquid-viewing mirror for observing the liquid level of a refrigerant in the gas-liquid separator and an anti-frosting device for preventing the liquid-viewing mirror from frosting, the anti-frosting device comprises a transparent sealing head, an observation channel is arranged on a gas-liquid separator main body, the liquid-viewing mirror is embedded in the observation channel, the anti-frosting device further comprises a sleeve and a first fixing ring, the transparent sealing head can be sleeved outside the sleeve, the first fixing ring can be sleeved outside the transparent sealing head so that the transparent sealing head is fixed at one end of the sleeve, the other end of the sleeve can be sleeved on the observation channel, the anti-frosting device further comprises a sealing ring and a second fixing ring, the sealing ring can be fixed on the other end of the sleeve so that the sealing ring is sleeved at a joint of the sleeve and the observation channel, the air conditioning system comprises a first sensor for detecting the ambient temperature, a second sensor for detecting the ambient temperature, a heating belt and a heating belt for heating device for heating the sleeve, and a control method for winding the heating belt can be provided, and the heating device can be provided: judging whether the running time of the air conditioning system reaches a preset time t or not; acquiring temperature data T1 of the first temperature sensor and temperature data T2 of the second temperature sensor; if the running time of the air conditioning system reaches the preset time T, comparing the sizes of T1 and T2; if T2 is less than T1, controlling the heating module to heat the heating belt; and if T2 is more than or equal to T1, controlling the heating module to stop heating the heating belt.
In a specific embodiment of the above control method for an air conditioning system including a gas-liquid separator, the step of controlling the heating module to stop heating the heating belt if T2 is equal to or greater than T1 further includes: and if T2 is more than or equal to T1 and the difference between T2 and T1 is larger than a preset difference A, controlling the heating module to stop heating the heating belt.
Under the condition of adopting the technical scheme, the invention can avoid the frosting of the vapor in the air on the surface of the liquid-viewing mirror, and specifically, the invention adds the frosting prevention device comprising the transparent end socket on the outer side of the liquid-viewing mirror, so that a closed space is formed between the transparent end socket and the liquid-viewing mirror, thereby avoiding the contact between the liquid-viewing mirror and the vapor in the air, further solving the problem that the vapor in the environment frosts on the surface of the liquid-viewing mirror due to the lower temperature of the refrigerant in the gas-liquid separator in the frosting and defrosting process of the outdoor heat exchanger of the existing air-conditioning system, and further, the problem that the observation effect on the liquid level of the refrigerant in the gas-liquid separator is influenced due to the transparent end socket is solved, and in addition, the observation on the liquid level of the refrigerant in the gas-liquid separator by the liquid-viewing mirror by a user is not influenced.
Drawings
Preferred embodiments of the present invention are described below with reference to the accompanying drawings, in which:
FIG. 1 is an assembly view of an anti-frosting device mounted to a gas-liquid separator;
FIG. 2 is an enlarged view of a portion of the junction of the anti-frosting device and the viewing channel, where FIG. 2 is a view at A in FIG. 1;
FIG. 3 is an exploded view of the anti-frosting device;
FIG. 4 is a schematic view of an anti-frosting device comprising a heating belt;
fig. 5 is a flowchart of a control method for an air conditioning system including a gas-liquid separator.
List of reference numerals:
1-a gas-liquid separator;
11-a liquid-viewing mirror;
12-an anti-frosting device;
121-a transparent seal head; 122-sleeve; 123-a first securing ring;
124-air extraction device (air pump); 125-valve (check valve);
126-sealing ring; 127-a second securing ring; 128-pumping pipeline;
13-a gas-liquid separator body;
14-observing the channel;
15-heating the belt;
2-a second temperature sensor.
Detailed Description
Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are merely for explaining the technical principles of the present invention, and are not intended to limit the scope of the present invention. Those skilled in the art can adapt it as desired to suit a particular application. For example, although the description of the transparent seal head is described by taking transparent glass as an example, it is obvious that various other transparent seal heads can be used in the present invention, so long as the transparent seal head has the effect of being transparent and capable of forming a closed space with the liquid-viewing mirror.
It should be noted that, in the description of the present invention, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the apparatus or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Furthermore, it should be noted that, in the description of the present invention, 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, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to the specific circumstances.
First, with reference to fig. 1, a description will be given of a problem of a gas-liquid separator 1 in an existing air conditioning system. In which fig. 1 is an assembly view of an anti-frosting device 12 of the present invention mounted to a gas-liquid separator 1, two arrows of which are the flow directions of refrigerant flowing into the gas-liquid separator 1 and flowing out of the gas-liquid separator 1, respectively. The existing air conditioning system is generally provided with a gas-liquid separator 1, the gas-liquid separator 1 mainly aims to separate gas-phase and liquid-phase refrigerants and store part of the refrigerants in the system, so that liquid impact of a compressor is prevented, and the phenomenon that the service life of the compressor is influenced due to excessive liquid-phase refrigerants returned to the compressor is avoided, and when the newly developed gas-liquid separator 1 is applied to the air conditioning system, test verification is required, wherein the liquid storage capacity of the gas-liquid separator 1 is the most important of the verification. When the unit operates under a low-temperature heating working condition (or other outdoor heat exchangers are easy to frost working conditions), the outdoor side is a low-temperature high-humidity environment, the outdoor heat exchanger can be subjected to frosting and defrosting, when the two phenomena (frosting and defrosting) occur, the temperature of the refrigerant is reduced due to insufficient heat exchange, the dryness of the refrigerant entering the gas-liquid separator 1 is very low, liquid refrigerant is accumulated in the gas-liquid separator 1, once the liquid level of the refrigerant does not exceed the lowest position of an air outlet pipe of the gas-liquid separator 1, the compressor can be impacted due to the fact that too much liquid refrigerant is sucked in, and the compressor is damaged, so that the liquid level of the refrigerant needs to be observed through the liquid-viewing mirror 11, and the liquid storage capacity of the gas-liquid separator 1 is judged, but due to the fact that the lower temperature in the gas-liquid separator 1 is lower, the temperature of the lower temperature is transmitted to the liquid-viewing mirror 11, the other side of the liquid-viewing mirror 11 is in the external environment, and water in the external environment is more, and the water vapor can condensate on the liquid-viewing mirror 11, and the liquid level of the liquid-phase is condensed on the liquid-viewing mirror 11, and the liquid-liquid level of the liquid separator 1 is condensed by the user, and the scheme of the invention is introduced by combining the scheme of the invention.
As shown in fig. 1-3, in order to solve the problem that in the process of frosting and defrosting of an outdoor unit heat exchanger of the existing air conditioning system, the temperature of a refrigerant in a gas-liquid separator 1 is low, so that water vapor in the environment frosts on the surface of a view mirror 11, thereby influencing the observation effect on the refrigerant liquid level in the gas-liquid separator 1, the outdoor unit heat exchanger comprises a view mirror 11 for observing the refrigerant liquid level in the gas-liquid separator 1 and a frosting prevention device 12 for preventing the frosting of the view mirror 11, the frosting prevention device 12 is sleeved and connected to the outer side of the view mirror 11, specifically, a plurality of observation channels 14 are arranged on the side wall of the gas-liquid separator 1, the view mirror 11 is embedded in the observation channels 14, the left end (as in the direction in fig. 3) of the frosting prevention device 12 comprises a transparent seal head 121, a sleeve 122 and a first fixing ring 123, the transparent seal head 121 is made of transparent plastic, one end is closed, the transparent seal head 121 can be sleeved on the outer side of the sleeve 122, the first fixing ring 123 can be sleeved and arranged on the outer side of the transparent seal head 121 so that the transparent seal head 122 can be sleeved and fixed on the outer side of the sleeve 122, the second fixing ring 126 is sleeved and fixed on the outer side of the transparent seal head 122, and the first fixing end 126 is formed by the transparent seal ring 122, and the second fixing part of the transparent seal head 122 is sleeved and fixed on the transparent seal head 122, and the second fixing part, and the transparent seal head 122.
It should be noted that, firstly, the precondition that the water vapor in the air can frost on the surface of the view mirror 11 is that there is a significant temperature difference between the environments where the two sides of the view mirror 11 are located, and that more water vapor exists in the air at the side where the temperature is higher, and that the water vapor condenses to frost on the surface of the view mirror 11, in the case of adopting the above embodiment, in the installation process of the air-liquid separator 1 for an air-conditioning system of the present invention, firstly, a part of the sealing ring 126 is sleeved on the sleeve 122, and a part not sleeved on the sleeve 122 is sleeved on the observation channel 14, then the second fixing ring 127 is sleeved on the outer side of the sealing ring 126, thereby realizing the sealing of the sealing ring 126 to the junction of the sleeve 122 and the observation channel 14, then the transparent end cap 121 is sleeved on the other end of the sleeve 122, and the first fixing ring 123 is sleeved on the outer side of the transparent end cap 121, thereby realizing the connection of the transparent sealing head 121 and the sleeve 122, forming a section of closed ground space between the transparent sealing head 121 and the liquid viewing mirror 11, in the use process of the gas-liquid separator 1 for the air conditioning system, even if the temperature in the gas-liquid separator 1 is lower, the temperature of the surface of the liquid viewing mirror 11 close to the gas-liquid separator 1 is lower, because the closed space is formed between the liquid viewing mirror 11 and the transparent sealing head 121, the surface of the liquid viewing mirror 11 far away from the gas-liquid separator 1 is far away from the external environment, the higher temperature in the external environment has obvious dissipation in the process of being transferred to the liquid viewing mirror 11, the temperature of the surface of the liquid viewing mirror 11 far away from the gas-liquid separator 1 can not be obviously increased, the temperature difference of the two side surfaces of the liquid viewing mirror 11 is reduced, the frosting on the liquid viewing mirror 11 is more difficult to occur, on the other hand, the presence of the closed space makes the water vapor content in the air in the closed space limited, so that the total amount of water vapor that can condense on the surface of the liquid mirror 11 that is remote from the gas-liquid separator 1 is limited, thus further reducing the possibility of occurrence of frost on the surface of the liquid mirror 11.
In addition, regarding the transparent sealing head 121, although the transparent sealing head 121 is made of transparent plastic, this is not the only material for the transparent sealing head 121, and those skilled in the art can also select other common transparent materials, such as transparent glass, and these simple changes do not exceed the protection scope of the present invention.
Having described the primary embodiments of the present invention, reference is made to the following preferred embodiments of the present invention.
In one possible embodiment, as shown in fig. 3, the anti-frosting device 12 further includes an air pumping device 124, where the air pumping device 124 is in communication with the enclosed space, and a valve 125 is disposed on an air pumping line 128 between the air pumping device 124 and the enclosed space, where the valve 125 is a one-way valve 125, and the air pumping device 124 is an air pump 124.
In the case of the above embodiment, in the use of the gas-liquid separator 1 for an air conditioning system of the present invention, after the transparent seal head 121 and the seal ring are mounted on the sleeve 122 and on the observation channel 14, the air-extracting device 124 is opened, and the air in the closed space is drawn into the air-extracting device 124 through the check valve 125 along the air-extracting line 128, so that the closed space between the liquid-viewing mirror 11 and the transparent seal head 121 is vacuumed, thus completely isolating the surface of the liquid-viewing mirror 11 away from the gas-liquid separator 1 from the water vapor, thereby ensuring that no frost is formed on the surface of the liquid-viewing mirror 11 away from the gas-liquid separator 1, and, due to the existence of the check valve 125, no air enters the closed space along the air-extracting line 128 after the evacuation is completed.
It should be noted that, in the case of the above embodiment, since a large negative pressure exists in the closed space during and after the evacuation, the transparent sealing head 121 should be made of a material having sufficient strength, such as tempered glass or high-strength transparent plastic, which is within the technical principles of the present invention.
As shown in fig. 4, in one possible embodiment, the outside of the sleeve 122 is wound with a heating belt 15.
As mentioned above, a closed space is formed between the sight glass 11 and the transparent seal 121, so that the surface of the sight glass 11 far away from the gas-liquid separator 1 is far away from the external environment, and therefore, the higher temperature in the external environment is obviously dissipated in the process of being transferred to the sight glass 11, and further, the temperature difference of the surfaces of the sight glass 11 far away from the gas-liquid separator 1 cannot be obviously increased, the temperature difference of the surfaces of the sight glass 11 is reduced, meanwhile, due to the reduction of the water vapor content in the air around the surfaces of the sight glass 11 far away from the gas-liquid separator 1, the two factors are combined, the frost can not be formed on the surfaces of the sight glass 11, and in the same case, a part of the lower temperature in the gas-liquid separator 1 can be transferred to the surfaces of the transparent seal 121 facing the closed space, and the temperature difference exists on the surfaces of the two sides of the transparent seal 121 facing the external environment, but the surfaces of the transparent seal 121 facing the external environment are not increased, and further, the heat of the sight glass 121 is heated on the surfaces of the sight glass 121 facing the external environment, and the sleeve 122 is prevented from being transferred to the external sleeve 122, and the heat of the sight glass is removed by the heat of the sight glass 121, and the heat of the sight glass is transferred to the surface of the transparent seal 121, and the external sleeve 122 is prevented.
In one possible embodiment, the gas-liquid separator main body 13 is provided with an observation channel 14, the liquid viewing mirror 11 is embedded in the observation channel 14, the transparent sealing head 121 is embedded in the observation channel 14 and is arranged between the liquid viewing mirror 11 and the gas-liquid separator main body 13, so that a closed space is formed between the transparent sealing head 121 and the liquid viewing mirror 11, the frost prevention device 12 further comprises an air extraction device 124, the air extraction device 124 is communicated with the closed space, and a valve 125 is arranged on an air extraction pipeline 128 between the air extraction device 124 and the closed space.
In the case of the above embodiment, unlike the aforementioned embodiment, the frost prevention device 12 in this embodiment includes only the transparent seal head 121, the air extraction device 124, and the valve 125 disposed on the air extraction line 128, by embedding the transparent seal head 121 into the observation channel 14, a closed space between the transparent seal head 121 and the liquid viewing mirror 11 is formed in the observation channel 14, and then the closed space is vacuumized by the air extraction device 124, so that the lower temperature in the gas-liquid separator 1 is blocked by the vacuum closed space when being transferred to the transparent seal head 121, and the lower temperature cannot be transferred to the liquid viewing mirror 11, so that the two side surfaces of the liquid viewing mirror 11 maintain a small temperature difference, therefore, although the liquid viewing mirror 11 is in the external environment, more water vapor exists in the air on the surface of the liquid viewing mirror 11, and frost is not formed on the surface of the liquid viewing mirror 11, and meanwhile, the high temperature in the external air cannot be transferred to the transparent seal head 121, so that the difference in temperature of the two side surfaces of the transparent seal head 121 is small, and the water vapor is not formed on the surface of the transparent seal head 121.
The advantages of the above embodiment are: by embedding the transparent sealing head 121 into the observation channel 14, compared with the previous embodiment, parts such as the sleeve 122, the first fixing ring 123, the second fixing ring 127, the sealing ring 126 and the like are reduced, the space occupation of the anti-frosting device 12 is reduced, meanwhile, the fewer parts are more convenient for installing and detaching the anti-frosting device 12, and meanwhile, the problem of air leakage caused by the fact that the matching between the parts is not tight can be avoided.
In addition, the present invention also provides a control method for an air conditioning system including a gas-liquid separator, in one possible embodiment, the air conditioning system includes a first temperature sensor (not shown in the drawings) for detecting an ambient temperature, a second temperature sensor 2 for detecting a temperature of a casing 122, and a heating device (not shown in the drawings), the casing 122 is wound with a heating belt 15 on an outer side thereof, and the heating device is capable of heating the heating belt 15, as shown in fig. 4 and 5, the control method includes:
s01, judging whether the running time of the air conditioning system reaches a preset time t;
s02, acquiring temperature data T1 of a first temperature sensor and temperature data T2 of a second temperature sensor 2;
s03, if the running time of the air conditioning system reaches a preset time T, comparing the sizes of T1 and T2;
s031, if T2 is less than T1, controlling the heating module to heat the heating belt 15;
s032, if T2 is more than or equal to T1, controlling the heating module to stop heating the heating belt 15.
Step S032 further comprises:
s0321, if T2 is greater than or equal to T1 and the difference between T2 and T1 is greater than the preset difference A, the heating module is controlled to stop heating the heating belt 15.
The above has mentioned that the heating belt 15 is wound around the outside of the sleeve 122, and the principle that the heating belt 15 eliminates the temperature difference between the two sides of the liquid viewing mirror 11 and ensures that no frosting occurs on the liquid viewing mirror 11 is guaranteed, so this embodiment proposes a method for controlling whether the heating belt 15 heats the liquid viewing mirror 11 to further refine the above scheme, in the case of this embodiment, after the air conditioning system is started, it is firstly determined whether the operation time of the air conditioning system reaches the preset time T, and at the same time, the temperature data T1 of the first temperature sensor and the temperature data T2 of the second temperature sensor 2 are obtained, if the operation time of the air conditioning system reaches the preset time T, it is proved that the air conditioning system is operating normally and stably, at this time, the ambient temperature T1 and the temperature T2 of the sleeve 122 are compared, if T2 < T1 indicates that the temperature of the sleeve 122 is lower than the ambient temperature, so that the temperature of the liquid viewing mirror 11 in the sleeve 122 is also lower than the ambient temperature, in order to avoid a larger temperature difference on the surface of the liquid viewing mirror 11, the heating module is controlled to heat the heating belt 15, the heating belt 15 heats the sleeve 122 and the liquid viewing mirror 11 in the sleeve 122 until T2 is more than or equal to T1 and the difference between T2 and T1 is greater than the preset difference A, the heating module is controlled to stop heating the heating belt 15, so that the temperature of the sleeve 122 and the liquid viewing mirror 11 is higher than the ambient temperature, and further, the frost is avoided due to the larger temperature difference on the surface of the liquid viewing mirror 11, and on the other hand, when the temperature T2 is more than or equal to T1 after the ambient temperature T1 and the temperature T2 of the sleeve 122 are compared, the heating module is directly controlled not to heat the heating belt 15.
The advantages of the above embodiment are: the heating module is controlled to stop heating the heating belt 15 by judging that T2 is more than or equal to T1 and the difference between T2 and T1 is larger than the preset difference A, specifically, if the heating module is set to stop heating when T2 is more than or equal to T1, because the sleeve 122 is in air and slowly dissipates heat, when the air conditioning system periodically circularly detects T1 and T2, once T2 < T1 is found, the heating module is immediately controlled to be started, and when T2 is more than or equal to T1, the heating module is controlled to be closed, so that the heating module can be frequently heated and stopped to heat, the service life of the heating module can be lost, and therefore, when the difference between T2 and T1 is larger than the preset difference A, the heating module is controlled to stop heating the heating belt 15, the temperature T2 of the sleeve 122 is reduced to be lower than the ambient temperature T1 after a period, the service life of the heating module is protected, and the service life of the heating module is also prevented from being started when the difference between the ambient temperature T1 and the sleeve 122 is larger than or equal to T2, and the service life of the heating module can not be found to be as small as possible, and the service life of the heating module can not be started when the temperature difference of the heating module is found to be directly under the condition that the temperature is larger than or equal to T2.
In summary, the anti-frosting device 12 comprising the transparent seal head 121 is sleeved on the outer side of the observation channel 14 of the liquid viewing mirror 11 on the gas-liquid separator 1, so that a closed space is formed between the transparent seal head 121 and the liquid viewing mirror 11, the temperature difference of the surface of the liquid viewing mirror 11 is reduced, meanwhile, the content of water vapor which can frost the surface of the liquid viewing mirror 11 is reduced, the situation of frosting on the surface of the liquid viewing mirror 11 is avoided, meanwhile, due to the existence of the transparent seal head 121, an operator can observe the liquid level of the refrigerant in the gas-liquid separator 1 through the transparent seal head 121 and the liquid viewing mirror 11, the function of the liquid viewing mirror 11 is ensured to be normal, in addition, in order to further reduce the content of water vapor on the surface of the liquid viewing mirror 11, an air extracting device 124 is connected to the closed space formed between the liquid viewing mirror 11 and the transparent seal head 121, the content of water vapor around the liquid viewing mirror 11 is further reduced through vacuuming the closed space, the situation of frosting on the surface of the liquid viewing mirror 11 is further avoided, meanwhile, in order to further prevent the liquid viewing mirror 11 from frosting on the surface of the liquid viewing mirror 11 and the liquid viewing mirror 11 from being heated by the heat up of the transparent seal head 121 and the transparent seal head 121, and the anti-frosting device 15 is further prevented from being affected by the liquid heating the surface of the transparent seal head 121, and the surface is prevented from frosting on the surface of the surface.
It should be noted that the above-mentioned embodiments are merely for illustrating the principles of the present invention, and are not intended to limit the scope of the invention, and those skilled in the art can modify the above-mentioned structure to apply the present invention to more specific application scenarios without departing from the principles of the present invention.
Thus far, the technical solution of the present invention has been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of protection of the present invention is not limited to these specific embodiments. Equivalent modifications and substitutions for related technical features may be made by those skilled in the art without departing from the principles of the present invention, and such modifications and substitutions will fall within the scope of the present invention.
Claims (10)
1. An air conditioning system comprising a gas-liquid separator, wherein the gas-liquid separator comprises a liquid viewing mirror for observing the liquid level of a refrigerant in the gas-liquid separator and an anti-frosting device for preventing frosting of the liquid viewing mirror, the anti-frosting device comprises a transparent sealing head, the anti-frosting device can be connected with the liquid viewing mirror and enables a closed space to be formed between the transparent sealing head and the liquid viewing mirror, and the liquid level of the refrigerant in the gas-liquid separator can be observed through the transparent sealing head and the liquid viewing mirror.
2. The air conditioning system comprising a gas-liquid separator according to claim 1, wherein an observation channel is provided on the gas-liquid separator main body, the liquid viewing mirror is embedded in the observation channel, the frost prevention device further comprises a sleeve and a first fixing ring, the transparent sealing head can be sleeved outside the sleeve, the first fixing ring can be sleeved outside the transparent sealing head so that the transparent sealing head is fixed at one end of the sleeve, and the other end of the sleeve can be sleeved on the observation channel.
3. The air conditioning system comprising a gas-liquid separator according to claim 2, wherein the anti-frosting means further comprises an air extraction means, the air extraction means being in communication with the enclosed space, a valve being provided on the extraction line between the air extraction means and the enclosed space.
4. An air conditioning system comprising a gas-liquid separator according to claim 3, wherein the anti-frosting means further comprises a sealing ring and a second fixing ring, the sealing ring being fixable on the other end of the casing tube by the second fixing ring such that the sealing ring is sleeved at the junction of the casing tube and the viewing channel.
5. An air conditioning system comprising a gas-liquid separator as claimed in claim 3, wherein the valve is a one-way valve, and/or,
the air extracting device is an air pump.
6. The air conditioning system comprising a gas-liquid separator according to claim 1, wherein an observation channel is provided on the gas-liquid separator main body, the liquid-viewing mirror is embedded in the observation channel, and the transparent seal head is embedded in the observation channel and is provided between the liquid-viewing mirror and the gas-liquid separator main body, so that a closed space is formed between the transparent seal head and the liquid-viewing mirror.
7. An air conditioning system comprising a gas-liquid separator according to claim 6 wherein the anti-frosting means further comprises an air extraction means, said air extraction means being in communication with the enclosed space, a valve being provided on the extraction line between the air extraction means and the enclosed space, and/or,
the transparent sealing head is made of any one of transparent plastic or transparent glass.
8. The air conditioning system comprising a gas-liquid separator according to claim 4, wherein a heating belt is wound around the outside of the sleeve.
9. A control method for an air conditioning system comprising a gas-liquid separator, characterized in that the gas-liquid separator comprises a liquid-viewing mirror for viewing the liquid level of a refrigerant in the gas-liquid separator and an anti-frosting device for preventing frosting of the liquid-viewing mirror, the anti-frosting device comprises a transparent sealing head, an observation channel is arranged on a gas-liquid separator main body, the liquid-viewing mirror is embedded in the observation channel, the anti-frosting device further comprises a sleeve and a first fixing ring, the transparent sealing head can be sleeved outside the sleeve, the first fixing ring can be sleeved outside the transparent sealing head so that the transparent sealing head is fixed at one end of the sleeve, the other end of the sleeve can be sleeved on the observation channel, the anti-frosting device further comprises a sealing ring and a second fixing ring, the sealing ring can be fixed on the other end of the sleeve so that the sealing ring is sleeved at a joint of the sleeve and the observation channel, the air conditioning system comprises a first sensor for detecting the ambient temperature, a second sensor for detecting the ambient temperature, a heating belt and a heating belt, and a heating belt can be wound on the outer side of the heating belt, and the heating belt can be controlled by the heating belt, and the heating device can be wound on the outside.
Judging whether the running time of the air conditioning system reaches a preset time t or not;
acquiring temperature data T1 of the first temperature sensor and temperature data T2 of the second temperature sensor;
if the running time of the air conditioning system reaches the preset time T, comparing the sizes of T1 and T2;
if T2 is less than T1, controlling the heating module to heat the heating belt;
and if T2 is more than or equal to T1, controlling the heating module to stop heating the heating belt.
10. The control method for an air conditioning system including a gas-liquid separator according to claim 9, wherein the step of controlling the heating module to stop heating the heating belt if T2 is equal to or greater than T1 further comprises:
and if T2 is more than or equal to T1 and the difference between T2 and T1 is larger than a preset difference A, controlling the heating module to stop heating the heating belt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310596703.4A CN116734515A (en) | 2023-05-23 | 2023-05-23 | Air conditioning system comprising gas-liquid separator and control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310596703.4A CN116734515A (en) | 2023-05-23 | 2023-05-23 | Air conditioning system comprising gas-liquid separator and control method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116734515A true CN116734515A (en) | 2023-09-12 |
Family
ID=87905353
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310596703.4A Pending CN116734515A (en) | 2023-05-23 | 2023-05-23 | Air conditioning system comprising gas-liquid separator and control method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116734515A (en) |
-
2023
- 2023-05-23 CN CN202310596703.4A patent/CN116734515A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP3109500B2 (en) | Refrigeration equipment | |
| WO2015037354A1 (en) | Refrigeration cycle device | |
| US20190346191A1 (en) | Heat pump apparatus | |
| EP0407106A1 (en) | Refrigerant recovery device | |
| JP6079061B2 (en) | Refrigeration equipment | |
| US11536502B2 (en) | Refrigerant cycle apparatus | |
| EP3026374B1 (en) | Outdoor unit and air conditioning device | |
| US20090235673A1 (en) | Detection of refrigerant release in co2 refrigerant systems | |
| JP2005241121A (en) | Air conditioner | |
| JP2019143877A (en) | Air conditioning system | |
| CN116734515A (en) | Air conditioning system comprising gas-liquid separator and control method | |
| JP6822335B2 (en) | Refrigerant recovery device | |
| WO2018037544A1 (en) | Heat pump device | |
| CN111486620A (en) | Self-discharging refrigerant coil | |
| CN106403095B (en) | Heat generating unit | |
| AU2015375971B2 (en) | Outdoor unit and air-conditioning apparatus | |
| JP6398373B2 (en) | Air conditioner floor-mounted indoor unit | |
| JP4844601B2 (en) | Refrigeration equipment | |
| US20080156002A1 (en) | Air Conditioning System Treatment Applicator | |
| ES2771852T3 (en) | Refrigerant fluid recovery and recharging station of a motor vehicle air conditioning system with a non-condensable gas determination system and corresponding method | |
| CN208765327U (en) | air conditioning system | |
| GB2253473A (en) | Pipeline cooling systems | |
| JP2007212077A (en) | Air-conditioner | |
| JP4700025B2 (en) | Air conditioner | |
| US12085321B2 (en) | Refrigeration cycle system and refrigerant recovery apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |