CN110440424A - A kind of anti-return hydraulic control device, method and air-conditioning equipment suitable for various working - Google Patents
A kind of anti-return hydraulic control device, method and air-conditioning equipment suitable for various working Download PDFInfo
- Publication number
- CN110440424A CN110440424A CN201910684745.7A CN201910684745A CN110440424A CN 110440424 A CN110440424 A CN 110440424A CN 201910684745 A CN201910684745 A CN 201910684745A CN 110440424 A CN110440424 A CN 110440424A
- Authority
- CN
- China
- Prior art keywords
- compressor
- value
- heat
- control element
- condenser
- 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
- 238000000034 method Methods 0.000 title claims abstract description 25
- 238000004378 air conditioning Methods 0.000 title claims abstract description 18
- 239000007788 liquid Substances 0.000 claims abstract description 49
- 238000004891 communication Methods 0.000 claims abstract description 7
- 239000003507 refrigerant Substances 0.000 claims description 26
- 238000001514 detection method Methods 0.000 claims description 10
- 230000001960 triggered effect Effects 0.000 claims description 4
- 238000005057 refrigeration Methods 0.000 description 7
- 241000521257 Hydrops Species 0.000 description 2
- 206010030113 Oedema Diseases 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 239000010725 compressor oil Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
-
- 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
- F24F11/89—Arrangement or mounting of control or safety devices
-
- 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
- F25B39/00—Evaporators; Condensers
-
- 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
-
- 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
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
- F25B49/022—Compressor control arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Signal Processing (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
The present invention discloses a kind of anti-return hydraulic control device, method and air-conditioning equipment suitable for various working.Wherein, the device includes: heat-exchange device, the first end of the heat-exchange device is connected to the exhaust outlet of compressor of air-conditioning equipment, the inlet communication of the condenser of the second end and air-conditioning equipment of the heat-exchange device, first control element, it is arranged between the exhaust outlet of the compressor and the heat-exchange device, the second control element is arranged between the exhaust outlet of the compressor and the condenser.By means of the invention it is possible to prevent from generating back liquid in return line, reliability is improved, in turn avoids preventing back the unnecessary unlatching of liquid mode under nothing time liquid status.
Description
Technical field
The present invention relates to air-conditioning technical fields, fill in particular to a kind of anti-return hydraulic control suitable for various working
It sets, method and air-conditioning equipment.
Background technique
Since current market is more and more wider for air-conditioning use scope, existing air conditioner refrigerating range is by before minimum 18
DEG C become -20 DEG C, the cryogenic refrigeration function of air-conditioning is also the function that existing each producer will all be done step-by-step, but in worst cold case
Requirement for compressor reliability is higher and higher, and the compressor oil temperature degree of superheat is relatively difficult foundation under worst cold case, for oil temperature
The reason of degree of superheat is to guarantee one of the important indicator of compressor reliability, and oil overheating degree cannot be established rapidly predominantly unit
Liquid situation is returned under worst cold case, compressor reliability will be advantageously ensured that so solving unit and returning liquid, also ensure that whole
Machine reliability has more important guarantee for extending complete machine service life.
Aiming at the problem that liquid is returned in the appearance under worst cold case in the prior art, currently no effective solution has been proposed.
Summary of the invention
A kind of anti-return hydraulic control device and method suitable for various working is provided in the embodiment of the present invention, it is existing to solve
The problem of liquid is returned in appearance in technology under worst cold case.
In order to solve the above technical problems, the present invention provides a kind of anti-return hydraulic control device suitable for various working,
In, which includes: heat-exchange device, and the first end of the heat-exchange device is connected to the exhaust outlet of compressor of air-conditioning equipment,
The refrigerant of the inlet communication of the condenser of the second end and air-conditioning equipment of the heat-exchange device, the compressor discharge flows through institute
Heat-exchange device is stated, the gas exhaust piping and return line for making the compressor carry out heat exchange；
First control element is arranged between the exhaust outlet of the compressor and the heat-exchange device, for meeting
It triggers and opens when the first preset condition, enter the heat-exchange device to control the refrigerant of the compressor discharge；
Second control element is arranged between the exhaust outlet of the compressor and the condenser, for meeting second
It triggers and opens when preset condition, enter the condenser to control the refrigerant of the compressor discharge.
Further, the heat-exchange device includes inlet ductwork, export pipeline and heat exchange department, the inlet ductwork with
The refrigerant of exhaust outlet of compressor connection, the inlet communication of the export pipeline and the condenser, the compressor discharge flows through
The heat exchange department.
Further, the heat exchange department is the spirality pipeline surrounded outside the return line of the compressor.
Further, first preset condition are as follows: ambient temperature value < presets high temperature threshold value；Second preset condition
Are as follows: the bottom temp value > of compressor presets low temperature threshold.
Further, first control element or the second control element are solenoid valve.
Further, described device further includes the first temperature-sensing element, and first temperature-sensing element is arranged in the condenser
Outer surface, for detecting ambient temperature value.
Further, described device further includes the second temperature-sensing element, and the bottom of the compressor is arranged in, for detecting pressure
The bottom temp value of contracting machine.
The present invention also provides a kind of air-conditioning equipments, including the above-mentioned anti-return hydraulic control device suitable for various working.
The present invention also provides a kind of anti-return hydraulic control method suitable for various working applied to above-mentioned apparatus,
In, this method comprises: S101, the current ambient temperature value of detection；Ambient temperature value described in S102, comparison and default high temperature threshold value
Size；S103, described in the ambient temperature value < preset high temperature threshold value when, the inlet ductwork for triggering heat-exchange device is beaten
It opens, liquid mode is prevented back in unlatching, when the ambient temperature value >=default high temperature threshold value, the inlet ductwork of switch is kept to close
It closes, maintains normal mode.
Further, current ambient temperature value is detected, comprising: the environment temperature is detected by the first temperature-sensing element
Value；Wherein, the outer surface of condenser is arranged in first temperature-sensing element.
Further, it opens and prevents back liquid mode, comprising: the first control element of the control anti-return hydraulic control device is opened
It opens；And the second control element of the control anti-return hydraulic control device is closed；Wherein, the first control element setting exists
Between the exhaust outlet and heat-exchange device of compressor, second control element be arranged in the exhaust outlet of the compressor with it is described
Between condenser.
Further, the above method further include: S104, detection compressor bottom temp value；Compressor described in S105, comparison
The size of bottom temp value and default low temperature threshold；If S106, the compressor bottom temp value≤default low temperature threshold
Value, then keep described and prevent back liquid mode；If presetting low temperature threshold described in the compressor bottom temp value >, exit described
Prevent back liquid mode.
Further, compressor bottom temp value is detected, comprising: the compression motor spindle is detected by the second temperature-sensing element
Temperature value；Wherein, the bottom of the compressor is arranged in second temperature-sensing element.
Further, it exits and prevents back liquid mode, comprising: the second control element of the control anti-return hydraulic control device is opened
It opens；And the first control element of the control anti-return hydraulic control device is closed.
It applies the technical scheme of the present invention, by the way that heat-exchange device is arranged on institute's compressor return air pipe road, by the heat
One end of switch is connected to the exhaust outlet of compressor side, using exhaust outlet of compressor discharge high temperature refrigerant to muffler
Refrigerant heating in road, makes liquid refrigerants therein gasify, avoids back liquid phenomenon, and in the exhaust outlet of compressor institute
State between heat-exchange device and be respectively set between the exhaust outlet of compressor and the condenser the first control element and second
Control element is realized under high-temperature refrigeration operating condition, is closed and is prevented back liquid mode, and under cryogenic refrigeration operating condition, liquid mode is prevented back in unlatching, can
Meet the pattern switching under different operating conditions, can anti-non-return liquid generate, improve reliability, in turn avoid preventing without returning under liquid status
Return the unnecessary unlatching of liquid mode.
Detailed description of the invention
Fig. 1 is the structure chart of anti-return hydraulic control device according to an embodiment of the present invention；
Wherein, 1- heat-exchange device, 11- inlet ductwork, 12- export pipeline, 13- heat exchange department, the first control element of 2-,
The second control element of 3-, 4- compressor, 5- condenser, the first temperature-sensing element of 6-, the second temperature-sensing element of 7-, 8- electric expansion valve,
9- evaporator；
Fig. 2 is the flow chart of anti-return hydraulic control method according to an embodiment of the present invention；
Fig. 3 is the flow chart of anti-return hydraulic control method according to another embodiment of the present invention.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with attached drawing to the present invention make into
It is described in detail to one step, it is clear that described embodiments are only a part of the embodiments of the present invention, rather than whole implementation
Example.Based on the embodiments of the present invention, obtained by those of ordinary skill in the art without making creative efforts
All other embodiment, shall fall within the protection scope of the present invention.
The term used in embodiments of the present invention is only to be not intended to be limiting merely for for the purpose of describing particular embodiments
The present invention.In the embodiment of the present invention and the "an" of singular used in the attached claims, " described " and "the"
It is also intended to including most forms, unless the context clearly indicates other meaning, " a variety of " generally comprise at least two.
It should be appreciated that term "and/or" used herein is only a kind of incidence relation for describing affiliated partner, indicate
There may be three kinds of relationships, for example, A and/or B, can indicate: individualism A, exist simultaneously A and B, individualism B these three
Situation.In addition, character "/" herein, typicallys represent the relationship that forward-backward correlation object is a kind of "or".
It will be appreciated that though control element may be described in embodiments of the present invention using term first, second etc., but
These control elements should not necessarily be limited by these terms.These terms are only used to distinguish different control elements.For example, not departing from
In the case where range of embodiment of the invention, the first control element can also be referred to as the second control element, similarly, the second control
Element can also be referred to as the first control element.
Depending on context, word as used in this " if ", " if " can be construed to " ... when " or
" when ... " or " in response to determination " or " in response to detection ".Similarly, context is depended on, phrase " if it is determined that " or " such as
Fruit detection (condition or event of statement) " can be construed to " when determining " or " in response to determination " or " when detection (statement
Condition or event) when " or " in response to detection (condition or event of statement) ".
It should also be noted that, the terms "include", "comprise" or its any other variant are intended to nonexcludability
Include, so that commodity or device including a series of elements not only include those elements, but also including not clear
The other element listed, or further include for this commodity or the intrinsic element of device.In the feelings not limited more
Under condition, the element that is limited by sentence "including a ...", it is not excluded that in the commodity or device for including the element also
There are other identical elements.
The alternative embodiment that the invention will now be described in detail with reference to the accompanying drawings.
Embodiment 1
Fig. 1 is the structure chart of the anti-return hydraulic control device according to an embodiment of the present invention suitable for various working, in figure
Shown, which includes:
Heat-exchange device 1, the first end of the heat-exchange device 1 is connected to 4 exhaust outlet of compressor of air-conditioning equipment, described
The inlet communication of the condenser 5 of the second end and air-conditioning equipment of heat-exchange device 1, the refrigerant that the compressor 4 is discharged flow through institute
Heat-exchange device 1 is stated, the gas exhaust piping and return line for making the compressor 4 carry out heat exchange；
First control element 2 is arranged between the exhaust outlet and the heat-exchange device 1 of the compressor 4, for full
Triggering is opened when the first preset condition of foot, is introduced into the heat-exchange device 1 to control the refrigerant that the compressor 4 is discharged, then
Successively pass through condenser 5, electric expansion valve 8, evaporator 9, returns to compressor 4 eventually by return line；
Second control element 3 is arranged between the exhaust outlet and the condenser 5 of the compressor 4, for meeting the
It triggers and opens when two preset conditions, be directly entered the condenser 5 to control the refrigerant that the compressor 4 is discharged, then successively pass through
Electric expansion valve 8, evaporator 9 are crossed, returns to compressor 4 eventually by return line.
By between heat-exchange device 1 described in the exhaust outlet in the compressor 4 and the exhaust outlet of compressor 4 with it is described
The first control element 2 and the second control element 3 are respectively set between condenser 5, realizes under high-temperature refrigeration operating condition, closing is prevented back
Liquid mode, under cryogenic refrigeration operating condition, liquid mode is prevented back in unlatching, can meet the pattern switching under different operating conditions, can either anti-non-return
Liquid generates, and in turn avoids preventing back the unnecessary unlatching of liquid mode.
In the present embodiment, the heat-exchange device 1 includes inlet ductwork 11, export pipeline 12 and heat exchange department 13, institute
It states inlet ductwork 11 to be connected to 4 exhaust outlet of compressor, the inlet communication of the export pipeline 12 and the condenser 5, the pressure
The refrigerant that contracting machine 4 is discharged flows through the heat exchange department 13, the high temperature refrigerant that 4 exhaust outlet of compressor is discharged by inlet ductwork 11
Into heat-exchange device 1, the refrigerant after reducing with the temperature after 4 return line heat exchange of compressor is made by export pipeline 12
Into condenser 5.
In the present embodiment, the heat exchange department 13 is the spiral shape surrounded outside the return line of the compressor 4
Pipeline, the design of spirality pipeline are capable of increasing the surface area of heat exchange department 13, to increase effective heat dissipation area, reach more
Good heat transfer effect.
In the present embodiment, the first preset condition that first control element 2 is opened is triggered are as follows: ambient temperature value < is pre-
If high temperature threshold value, when ambient temperature value >=default high temperature threshold value, show that equipment is currently at high-temperature refrigeration operating condition, compressor 4
Be not in back liquid in return line, therefore the first control element 2 remains turned-off, and does not start and prevents back liquid mode, works as environment temperature
When value < presets high temperature threshold value, show that equipment is currently in cryogenic refrigeration operating condition, easily liquid situation occur back, therefore, controls the
One control element 2 is opened, and the high temperature refrigerant that compressor 4 is discharged makes the temperature liter in return line by heat-exchange device 1
Height, liquid refrigerants evaporation, is converted into gaseous state.
In the present embodiment, the second preset condition that second control element 3 is opened is triggered are as follows: the bottom of compressor 4
Temperature value > presets low temperature threshold, when 4 bottom temp value of compressor≤default low temperature threshold, shows 4 return line of compressor
In there are hydrops, therefore, need to keep preventing back liquid mode, after 4 bottom temp value of compressor, which rises to, is greater than default low temperature threshold,
Control the second control element 3 unlatching, open general mode, prevent back liquid mode closing, make compressor 4 discharge high temperature refrigerant without
Heat-exchange device 1 is crossed, condenser 5 is directly entered.
It is able to reflect out in 4 return line of compressor and whether there is by ambient temperature value and 4 bottom temp value of compressor
Hydrops, therefore by the variation of 4 bottom temp value of ambient temperature value and compressor, be converted to unlatching and pass that liquid mode is prevented back in control
The control signal closed, can be according to the switching for prevent back liquid mode and general mode of actual conditions adaptability inside equipment.
In the present embodiment, first control element 2 or the second control element 3 are solenoid valve, ambient temperature value and pressure
4 bottom temp value of contracting machine can be converted into electric signal, then by electric signal to first control element 2 or the second control element
3, using solenoid valve, can be realized according to ambient temperature value and the variation of 4 bottom temp value of compressor, to the first control element 2 or
The automatic control of second control element 3.
In the present embodiment, described device further includes the first temperature-sensing element 6, and first temperature-sensing element 6 is arranged described
The outer surface of condenser 5 can obtain ambient temperature value by the first temperature-sensing element 6 for detecting ambient temperature value in real time,
And then realization is to the real-time control of the first control element 2.
In the present embodiment, described device further includes the second temperature-sensing element 7, and the bottom of the compressor 4 is arranged in, is used for
The bottom temp value for detecting compressor 4, the bottom temp value of compressor 4 can be accurately obtained by the second temperature-sensing element 7, used
In accurately controlling to the second control element 3.
Embodiment 2
The present embodiment provides a kind of air-conditioning equipments, including the above-mentioned anti-return hydraulic control device suitable for various working.
Embodiment 3
The present embodiment provides a kind of anti-return hydraulic control method suitable for various working applied to above-mentioned apparatus,
In, as shown in Fig. 2, this method comprises:
The current ambient temperature value of S101, detection；
The size of ambient temperature value described in S101, comparison and default high temperature threshold value；
S103, when default high temperature threshold value, the inlet ductwork 11 of heat-exchange device 1 is triggered described in the ambient temperature value <
It opens, liquid mode is prevented back in unlatching, when the ambient temperature value >=default high temperature threshold value, keeps the import of switch 1
Pipeline 11 is closed, and normal mode is maintained.
In the present embodiment, current ambient temperature value is detected, comprising: the environment is detected by the first temperature-sensing element 6
Temperature value；Wherein, the outer surface of condenser 5 is arranged in first temperature-sensing element 6.
In the present embodiment, it opens and prevents back liquid mode, comprising: the first control element of the control anti-return hydraulic control device
2 open, and the second control element 3 for controlling the anti-return hydraulic control device is closed, the high temperature refrigerant warp that compressor 4 is discharged
Cross the first control element 2 and enter heat-exchange device 1, make refrigerant in return line the high temperature refrigerant being discharged with compressor 4 into
Temperature increases after row heat exchange, and liquid refrigerants evaporation is converted into gaseous state；Wherein, first control element 2 is arranged in compressor
Between 4 exhaust outlet and heat-exchange device 1, second control element 3 be arranged in the exhaust outlet of the compressor 4 with it is described cold
Between condenser 5.
Control method through this embodiment, when liquid can occur back in 4 return line of compressor, in time by opening
The first control element 2 of anti-return hydraulic control device is opened, liquid mode is prevented back in unlatching, in time turns the liquid refrigerants in return line
Turn to gaseous state.
Embodiment 4
The present embodiment provides the anti-return hydraulic control method of one kind of multiple operating conditions, it is further improved on the basis of embodiment 3, such as
Shown in Fig. 3, this method further include: after liquid mode is prevented back in S104, unlatching, detect 4 bottom temp value of compressor；S105, compare institute
State the size of 4 bottom temp value and default low temperature threshold of compressor；If S106,4 bottom temp value of the compressor≤described
Default low temperature threshold, then keep described and prevent back liquid mode；If presetting low temperature threshold described in the 4 bottom temp value > of compressor
Value then exits and described prevents back liquid mode.
In the present embodiment, 4 bottom temp value of compressor is detected, comprising: the compression is detected by the second temperature-sensing element 7
4 bottom temp value of machine；Wherein, the bottom of the compressor 4 is arranged in second temperature-sensing element 7.
In the present embodiment, it exits and prevents back liquid mode, comprising: the second control element of the control anti-return hydraulic control device
3 open, and the first control element 2 for controlling the anti-return hydraulic control device is closed, and the refrigerant that the compressor 4 is discharged is advanced
Enter the heat-exchange device 1, then successively pass through condenser 5, electric expansion valve 8, evaporator 9, is returned to eventually by return line
Compressor 4.
Method through this embodiment passes through unlatching when liquid can be not present back in 4 return line of compressor in time
Second control element 3 closes the first control element 2, and liquid mode is prevented back in closing, and the meaningless operation of avoiding device, causing need not
The loss wanted.
Through the above description of the embodiments, those skilled in the art can be understood that each embodiment can
It realizes by means of software and necessary general hardware platform, naturally it is also possible to pass through hardware.Based on this understanding, on
Stating technical solution, substantially the part that contributes to existing technology can be embodied in the form of software products in other words, should
Computer software product may be stored in a computer readable storage medium, such as ROM/RAM, magnetic disk, CD, including several fingers
It enables and using so that a computer equipment (can be personal computer, server or the network equipment etc.) executes each implementation
Method described in certain parts of example or embodiment.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features；
And these are modified or replaceed, technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution spirit and
Range.
Claims (14)
1. a kind of anti-return hydraulic control device characterized by comprising
Heat-exchange device, the first end of the heat-exchange device are connected to the exhaust outlet of compressor of air-conditioning equipment, the heat exchange
The inlet communication of the condenser of the second end and air-conditioning equipment of device, the refrigerant of the compressor discharge flow through the heat exchange dress
It sets, the gas exhaust piping and return line for making the compressor carry out heat exchange；
First control element is arranged between the exhaust outlet of the compressor and the heat-exchange device, for meeting first
It triggers and opens when preset condition, enter the heat-exchange device to control the refrigerant of the compressor discharge；
Second control element is arranged between the exhaust outlet of the compressor and the condenser, for default in satisfaction second
It triggers and opens when condition, enter the condenser to control the refrigerant of the compressor discharge.
2. the apparatus according to claim 1, which is characterized in that the heat-exchange device includes inlet ductwork, export pipeline
And heat exchange department, the inlet ductwork are connected to exhaust outlet of compressor, the inlet communication of the export pipeline and the condenser,
The refrigerant of the compressor discharge flows through the heat exchange department.
3. the apparatus of claim 2, which is characterized in that the heat exchange department is the return-air for surrounding the compressor
Spirality pipeline outside pipeline.
4. the apparatus according to claim 1, which is characterized in that
First preset condition are as follows: ambient temperature value < presets high temperature threshold value；
Second preset condition are as follows: the bottom temp value > of compressor presets low temperature threshold.
5. the apparatus according to claim 1, which is characterized in that first control element or the second control element are electromagnetism
Valve.
6. the apparatus according to claim 1, which is characterized in that it further include the first temperature-sensing element, first temperature-sensing element
The outer surface of the condenser is set, for detecting ambient temperature value.
7. the apparatus according to claim 1, which is characterized in that further include the second temperature-sensing element, be arranged in the compressor
Bottom, for detecting the bottom temp value of compressor.
8. a kind of air-conditioning equipment, which is characterized in that including anti-return hydraulic control device described in any one of claims 1 to 7.
9. a kind of anti-return hydraulic control method, special applied to anti-return hydraulic control device described in any one of claims 1 to 7
Sign is, comprising:
The current ambient temperature value of S101, detection；
The size of ambient temperature value described in S102, comparison and default high temperature threshold value；
S103, described in the ambient temperature value < when default high temperature threshold value, the inlet ductwork opening of heat-exchange device is triggered, is opened
It opens and prevents back liquid mode；
In the ambient temperature value >=default high temperature threshold value, the inlet ductwork of switch is kept to close, remains normal
Mode.
10. according to the method described in claim 9, it is characterized in that, detecting current ambient temperature value, comprising:
The ambient temperature value is detected by the first temperature-sensing element；Wherein, the outer of condenser is arranged in first temperature-sensing element
Surface.
11. according to the method described in claim 10, preventing back liquid mode it is characterized in that, opening, comprising:
The first control element for controlling the anti-return hydraulic control device is opened；And
The second control element for controlling the anti-return hydraulic control device is closed；
Wherein, first control element is arranged between the exhaust outlet of compressor and heat-exchange device, the second control member
Part is arranged between the exhaust outlet of the compressor and the condenser.
12. the method according to any one of claim 9~11, which is characterized in that after liquid mode is prevented back in unlatching, institute
State method further include:
S104, detection compressor bottom temp value；
The size of compressor bottom temp value and default low temperature threshold described in S105, comparison；
If S106, the compressor bottom temp value≤default low temperature threshold, keep described and prevent back liquid mode；
If presetting low temperature threshold described in the compressor bottom temp value >, exits and described prevent back liquid mode.
13. according to the method for claim 12, which is characterized in that detection compressor bottom temp value, comprising:
The compressor bottom temp value is detected by the second temperature-sensing element；Wherein, second temperature-sensing element is arranged described
The bottom of compressor.
14. according to the method for claim 12, which is characterized in that exit and prevent back liquid mode, comprising:
The second control element for controlling the anti-return hydraulic control device is opened；And the of the control anti-return hydraulic control device
One control element is closed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910684745.7A CN110440424A (en) | 2019-07-26 | 2019-07-26 | A kind of anti-return hydraulic control device, method and air-conditioning equipment suitable for various working |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910684745.7A CN110440424A (en) | 2019-07-26 | 2019-07-26 | A kind of anti-return hydraulic control device, method and air-conditioning equipment suitable for various working |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110440424A true CN110440424A (en) | 2019-11-12 |
Family
ID=68431833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910684745.7A Pending CN110440424A (en) | 2019-07-26 | 2019-07-26 | A kind of anti-return hydraulic control device, method and air-conditioning equipment suitable for various working |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110440424A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111219840A (en) * | 2019-11-27 | 2020-06-02 | 珠海格力电器股份有限公司 | Ultralow-temperature refrigeration control method and device and air conditioning equipment |
| CN113446702A (en) * | 2020-03-26 | 2021-09-28 | 青岛海尔空调电子有限公司 | Refrigerant flow control method and system of air conditioner |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20050062352A (en) * | 2003-12-19 | 2005-06-23 | 삼성전자주식회사 | Air conditioner |
| CN1908556A (en) * | 2006-08-31 | 2007-02-07 | 黄麦 | Refrigerating air conditioner in high temperature working condition |
| JP2016090186A (en) * | 2014-11-10 | 2016-05-23 | 株式会社富士通ゼネラル | Air conditioner |
| CN107024046A (en) * | 2017-03-27 | 2017-08-08 | 广东美的制冷设备有限公司 | A kind of air-conditioner control method and air conditioner |
| CN109405383A (en) * | 2018-10-29 | 2019-03-01 | 宁波奥克斯电气股份有限公司 | A kind of anti-return hydraulic control method of air conditioner and air conditioner |
| CN109579296A (en) * | 2017-09-29 | 2019-04-05 | 青岛经济技术开发区海尔热水器有限公司 | A kind of Teat pump boiler unit and its control method |
| CN109812900A (en) * | 2019-03-22 | 2019-05-28 | 广东美的制冷设备有限公司 | Air conditioner, progress control method and computer readable storage medium |
| CN110006193A (en) * | 2019-03-25 | 2019-07-12 | 珠海格力电器股份有限公司 | Air-conditioning system and its compressor oil temperature regulating device used |
| CN210602377U (en) * | 2019-07-26 | 2020-05-22 | 珠海格力电器股份有限公司 | Liquid return prevention control device suitable for multiple working conditions and air conditioning equipment |
-
2019
- 2019-07-26 CN CN201910684745.7A patent/CN110440424A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20050062352A (en) * | 2003-12-19 | 2005-06-23 | 삼성전자주식회사 | Air conditioner |
| CN1908556A (en) * | 2006-08-31 | 2007-02-07 | 黄麦 | Refrigerating air conditioner in high temperature working condition |
| JP2016090186A (en) * | 2014-11-10 | 2016-05-23 | 株式会社富士通ゼネラル | Air conditioner |
| CN107024046A (en) * | 2017-03-27 | 2017-08-08 | 广东美的制冷设备有限公司 | A kind of air-conditioner control method and air conditioner |
| CN109579296A (en) * | 2017-09-29 | 2019-04-05 | 青岛经济技术开发区海尔热水器有限公司 | A kind of Teat pump boiler unit and its control method |
| CN109405383A (en) * | 2018-10-29 | 2019-03-01 | 宁波奥克斯电气股份有限公司 | A kind of anti-return hydraulic control method of air conditioner and air conditioner |
| CN109812900A (en) * | 2019-03-22 | 2019-05-28 | 广东美的制冷设备有限公司 | Air conditioner, progress control method and computer readable storage medium |
| CN110006193A (en) * | 2019-03-25 | 2019-07-12 | 珠海格力电器股份有限公司 | Air-conditioning system and its compressor oil temperature regulating device used |
| CN210602377U (en) * | 2019-07-26 | 2020-05-22 | 珠海格力电器股份有限公司 | Liquid return prevention control device suitable for multiple working conditions and air conditioning equipment |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111219840A (en) * | 2019-11-27 | 2020-06-02 | 珠海格力电器股份有限公司 | Ultralow-temperature refrigeration control method and device and air conditioning equipment |
| CN113446702A (en) * | 2020-03-26 | 2021-09-28 | 青岛海尔空调电子有限公司 | Refrigerant flow control method and system of air conditioner |
| WO2021190235A1 (en) * | 2020-03-26 | 2021-09-30 | 青岛海尔空调电子有限公司 | Control method and system for flow of refrigerant of air conditioner |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100529604C (en) | Loss of refrigerant charge and expansion valve malfunction detection | |
| US9103574B2 (en) | Air conditioner, refrigerant filling method of air conditioner, method for judging refrigerant filling state of air conditioner as well as refrigerant filling and pipe cleaning method of air conditioner | |
| CN100419351C (en) | Refrigerant system with controlled refrigerant charge amount | |
| JP4317878B2 (en) | Air conditioner and method for judging refrigerant amount | |
| KR940020058A (en) | Regenerative air conditioning system and defrosting method | |
| CN109556232A (en) | Four-way valve method for detecting abnormality, device and air-conditioner set | |
| CN110050159A (en) | Air conditioner | |
| CN108278715A (en) | A kind of air conditioner lacks fluorine guard method and the air conditioner with scarce fluorine defencive function | |
| Kim et al. | Performance investigation of a variable speed vapor compression system for fault detection and diagnosis | |
| CN110440424A (en) | A kind of anti-return hydraulic control device, method and air-conditioning equipment suitable for various working | |
| CN113007830A (en) | Three-pipe multi-split system and control method thereof | |
| JP6628911B1 (en) | Refrigeration cycle device | |
| MXPA06004686A (en) | Expansion device with low refrigerant charge monitoring. | |
| CN106801955B (en) | Air-cooling water cooling and heating unit system and control method | |
| EP3663681B1 (en) | Refrigeration device | |
| JP3738299B2 (en) | Heat pump type heat supply device | |
| JP4039462B1 (en) | Refrigeration equipment | |
| JPWO2015198489A1 (en) | Refrigeration cycle apparatus, refrigerant leak detection apparatus and refrigerant leak detection method | |
| JP2020165315A (en) | Air conditioner control device, air conditioner with the same, control method for air conditioner and control program for air conditioner | |
| CN110529993B (en) | Operation control device and method, air conditioner, and computer-readable storage medium | |
| JP5020114B2 (en) | Air conditioner | |
| JP2015014372A (en) | Air conditioner | |
| CN210602377U (en) | Liquid return prevention control device suitable for multiple working conditions and air conditioning equipment | |
| CN107023917B (en) | Air conditioner and refrigerator integrated machine and operation control method thereof | |
| JP4090240B2 (en) | Cooling system |
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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191112 |
|
| RJ01 | Rejection of invention patent application after publication |