CN206131559U - Prevent air conditioning system of air condition compressor liquid hammer - Google Patents
Prevent air conditioning system of air condition compressor liquid hammer Download PDFInfo
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- CN206131559U CN206131559U CN201621173232.8U CN201621173232U CN206131559U CN 206131559 U CN206131559 U CN 206131559U CN 201621173232 U CN201621173232 U CN 201621173232U CN 206131559 U CN206131559 U CN 206131559U
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Abstract
The utility model provides a prevent air conditioning system of air condition compressor liquid hammer, the system includes compressor (1), first heat exchanger (11), second heat exchanger (4) and throttling arrangement (8), and wherein the storage volume of first heat exchanger is greater than the storage volume of second heat exchanger, and first heat exchanger with still connect between the throttling arrangement and be provided with liquid storage pot (10), still be not provided with parallel branch (16) on the liquid storage pot parallelly connected ground in both ends, be provided with the first control valve (9a) of this branch road break -make of control on parallel branch. Through the utility model discloses can be as required breathe in the refrigerant storage capacity of the heat exchanger of end and do not start the liquid storage pot when big, do not breathe in the refrigerant storage capacity of the heat exchanger of end and hour open the liquid storage pot in order to save too much refrigerant being close to the compressor being close to the compressor to prevent that the compressor induction port from the phenomenon of taking liquid appearing breathing in and taking place, prevented effectively the condition of compressor liquid hammer.
Description
Technical field
The utility model belongs to compressor and air-conditioning technical field, and in particular to a kind of sky for preventing compressor of air conditioner liquid hammer
Adjusting system.
Background technology
Currently for the Worm type air-cooled heat pump with full-liquid type case tube heat exchanger, refrigerant liquid is mainly accumulated during refrigeration
Collect together in full-liquid type case tube heat exchanger, when heating, refrigerant liquid is saved bit by bit in finned heat exchanger and respective line, general feelings
Under condition, because the storage volume of full-liquid type package is more than fin and the storage volume of respective line, it is possible to occur such
Situation：When heating, substantial amounts of refrigerant liquid pours into fin heat exchange pipe, and the storage volume of fin heat exchange pipe is not enough to accommodate this
A little refrigerants, flow to according to refrigerant when heating, and refrigerant liquid will flow to compressor air suction mouth, and cause the liquid hammer of compressor.
Because there is compressor liquid hammer, absorbing gas belt liquid etc. in the air-conditioning system with full-liquid type case tube heat exchanger of the prior art
Technical problem, therefore the utility model research and design goes out a kind of air-conditioning system for preventing compressor of air conditioner liquid hammer.
Utility model content
Therefore, the technical problems to be solved in the utility model is to overcome air-conditioning system of the prior art to there is compressor
The defect of liquid hammer, so as to provide a kind of air-conditioning system for preventing compressor of air conditioner liquid hammer.
The utility model provides a kind of air-conditioning system for preventing compressor of air conditioner liquid hammer, including compressor, First Heat Exchanger,
Second heat exchanger and throttling arrangement, wherein memory bank of the storage volume of the First Heat Exchanger more than second heat exchanger
Product, and be also connected with being provided with fluid reservoir between the First Heat Exchanger and the throttling arrangement, at the fluid reservoir two ends simultaneously
It is additionally provided with parallel branch connection, the first control valve for controlling the branch road break-make is provided with the parallel branch.
Preferably, the entrance point in the fluid reservoir is additionally provided with the second control valve；And/or, in going out for the fluid reservoir
Mouth end is additionally provided with the 3rd control valve.
Preferably, also it is connected to inside the fluid reservoir including one end, the other end is connected to drawing in the parallel branch
Branch road is penetrated, and the 4th control valve is additionally provided with the injection branch road.
Preferably, one end of injector and the injector is additionally provided with the injection branch road near the injection
One end of device is additionally provided with the 4th control valve, the other end near the fluid reservoir.
Preferably, the injection branch road is connected in the parallel branch and near one end of the described first control valve, institute
State and bypass branch is also associated between the other end of the first control valve and the other end of the injector, and in the bypass branch
On be additionally provided with the 5th control valve.
Preferably, when while having the first control valve, the second control valve, the 3rd control valve, the 4th to control valve and the 5th control
During valve processed,
The first control valve, the second control valve, the 3rd control valve, the 4th control valve and the described 5th
Control valve is magnetic valve.
Preferably, the First Heat Exchanger is full-liquid type heat exchanger；And/or, second heat exchanger is fin type heat exchange
Device；And/or, the throttling arrangement is electric expansion valve.
The utility model also provides a kind of control method for preventing compressor of air conditioner liquid hammer, and it uses aforesaid air-conditioning system
System, the state control fluid reservoir for being freezed according to First Heat Exchanger or being heated works or does not work.
Preferably, when the First Heat Exchanger freezes, the first control valve is opened, control refrigerant is from described in parallel
Road is flow through, the fluid reservoir does not work；
When the First Heat Exchanger is heated, the first control valve is closed, the parallel branch disconnects, controls the storage
Flow container works, and refrigerant flows through the fluid reservoir and is stored.
Preferably, when the air-conditioning system also includes the second control valve, the 3rd control valve：
When the First Heat Exchanger freezes, control the first control valve is always on, second controls valve and the 3rd control
Valve is closed all the time；
When the First Heat Exchanger is heated, control the first control valve is closed all the time, second controls valve and the 3rd control
Valve is always on.
Preferably, when the air-conditioning system also includes the 4th control valve and the 5th control valve, and when the described first heat exchange
When device freezes and compressor load reaches A%, the 4th control valve and/or the 5th control valve are opened, control injection branch road
Connect, wherein A is preset constant, scope positioned at 0-100.
Preferably, open the 4th control valve and/or the 5th control valve, the action of control injection branch road connection continue △
After the t times, closing be opened the 4th control valve and/or the 5th control valve, to close the injection branch road.
The a kind of of the utility model offer prevents the air-conditioning system of compressor of air conditioner liquid hammer from having the advantages that：
1. the air-conditioning system for preventing compressor of air conditioner liquid hammer of the present utility model, by First Heat Exchanger and throttling arrangement
Between be also connected with being provided with fluid reservoir, be additionally provided with parallel branch in parallel at the fluid reservoir two ends, set in parallel branch
The the first control valve for controlling the branch road break-make is equipped with, can as needed in the refrigerant storage of the heat exchanger near compressor air suction end
Do not start when storage is big fluid reservoir, near compressor air suction end heat exchanger refrigerant storage capacity hour open fluid reservoir to deposit
The excessive refrigerant of storage, so as to the phenomenon for preventing compressor air suction mouth from absorbing gas belt liquid occur occurs, effectively prevent compressor liquid
Situation about hitting；
2. the air-conditioning system for preventing compressor of air conditioner liquid hammer of the present utility model, heats compared with First Heat Exchanger and freezes
Shi Jun is stored for the scheme of refrigerant by fluid reservoir so that First Heat Exchanger is obtained in that the refrigerant of greater flow is used when freezing
To exchange heat, it is to avoid First Heat Exchanger reservoir volume causes effective refrigerant to be stored and storage because of the effect of fluid reservoir enough
In flow container, cause that First Heat Exchanger can not be entered, cause the appearance of the relatively low situation of First Heat Exchanger heat exchange efficiency, therefore effectively
Improve air-conditioning system especially First Heat Exchanger freeze when heat exchange efficiency；
3. the air-conditioning system for preventing compressor of air conditioner liquid hammer of the present utility model, by First Heat Exchanger and throttling arrangement
Between be also connected with being provided with fluid reservoir, additionally it is possible to effectively First Heat Exchanger is preferably by fluid reservoir cold in full-liquid type package
Coagulate the refrigerant liquid for getting off and be transferred out of package, to ensure First Heat Exchanger in have more fully area carry out condensing heat-exchange,
So as to improve the heating performance that First Heat Exchanger is preferably full-liquid type case tube heat exchanger；
4. the air-conditioning system for preventing compressor of air conditioner liquid hammer of the present utility model, by between fluid reservoir and parallel branch
The mode of injection branch road and injector is also connected with, because the reservoir volume of First Heat Exchanger is larger, heat exchange refrigerant demand capacity is big,
Therefore said structure can enter the remaining refrigerant injection in fluid reservoir in main circulation loop when First Heat Exchanger freezes, so as to
In making it into First Heat Exchanger, so as to effectively ensure the cooling heat exchange efficiency of First Heat Exchanger, the COP of air-conditioning system is improved
Value.
Description of the drawings
Fig. 1 is the structural representation of the air-conditioning system for preventing compressor of air conditioner liquid hammer of the present utility model.
Reference is expressed as in figure：
1-compressor, 2-oil eliminator, 3-cross valve, the 4-the second heat exchanger (finned heat exchanger), 5a, 5b, 5c,
5d-check valve, 6a, 6b-ball valve, 7-device for drying and filtering, 8-throttling arrangement (throttling components and parts), 9a-the first control valve
(magnetic valve 9a), 9b-the second control valve (magnetic valve 9b), controls valve of 9c-the 3rd (magnetic valve 9c), the control valves of 9e-the 4th
(magnetic valve 9e), 9d-the 5th control valve (magnetic valve 9d), 10-fluid reservoir, (full-liquid type package exchanges heat 11-First Heat Exchanger
Device), 12-vapour liquid separator, 13-hydrojet pipeline and its components and parts, 14-return line and its components and parts, 15-injector,
16-parallel branch, 17-injection branch road, 18-bypass branch.
Specific embodiment
As shown in figure 1, the utility model provides a kind of air-conditioning system for preventing compressor of air conditioner liquid hammer, wherein the air-conditioning
System includes compressor 1, First Heat Exchanger 11, the second heat exchanger 4 and throttling arrangement 8, wherein the storage of the First Heat Exchanger
Volume is more than the storage volume of second heat exchanger, and is also connected with setting between the First Heat Exchanger and the throttling arrangement
Fluid reservoir 10 is equipped with, at the fluid reservoir two ends parallel branch 16 is additionally provided with parallel, be provided with the parallel branch
Control the first control valve 9a of the branch road break-make.
It is in parallel at the fluid reservoir two ends by being also connected with being provided with fluid reservoir between First Heat Exchanger and throttling arrangement
Be additionally provided with parallel branch, be provided with parallel branch control the branch road break-make first control valve, can be as needed
Do not start when the refrigerant storage capacity of heat exchanger is big fluid reservoir, heat exchanger refrigerant storage capacity hour open fluid reservoir to store
Excessive refrigerant, so as to the phenomenon for preventing compressor air suction mouth from absorbing gas belt liquid occur occurs, effectively prevent compressor liquid hammer
Situation；
Stored for the scheme of refrigerant by fluid reservoir when heating compared with First Heat Exchanger and freezing so that first changes
Hot device is obtained in that the refrigerant of greater flow to exchange heat when freezing, it is to avoid First Heat Exchanger reservoir volume is enough and because storage
The effect of flow container and cause effective refrigerant be stored with fluid reservoir, cause can not enter First Heat Exchanger, cause first heat exchange
The appearance of the relatively low situation of device heat exchange efficiency, thus be effectively improved air-conditioning system especially First Heat Exchanger freeze when change
The thermal efficiency；
The cooling medium liquid that effectively by fluid reservoir First Heat Exchanger can also be preferably to be condensed out in full-liquid type package
Body shift shell discharging pipe, to ensure First Heat Exchanger in have more fully area carry out condensing heat-exchange, change so as to improve first
Hot device is preferably the heating performance of full-liquid type case tube heat exchanger.
Preferably, the entrance point in the fluid reservoir 16 is additionally provided with the second control valve 9b；And/or, in the fluid reservoir
16 port of export is additionally provided with the 3rd control valve 9c.The knot of control valve is arranged by the entrance point in fluid reservoir and/or the port of export
Configuration formula, the control that the pipeline that fluid reservoir is located can be opened or is opened and closed coordinates first to control valve to parallel branch
Control action, so as to realize between parallel branch and two parallel pipelines of fluid reservoir place pipeline, under different actual demands
Be precisely controlled, realize that compressor air suction occurs the purpose and effect of liquid hammer without liquid, not.
Preferably, also it is connected to inside the fluid reservoir 10 including one end, the other end is connected in the parallel branch 16
Injection branch road 17, and be additionally provided with the injection branch road 17 the 4th control valve 9e.By in fluid reservoir and parallel branch
Between be also connected with the mode of injection branch road and injector, because the reservoir volume of First Heat Exchanger is larger, heat exchange refrigerant demand is held
Amount is big, and the refrigerant stored in fluid reservoir when heating is high pressure refrigerant liquid, and during refrigeration, magnetic valve 9e evaporates near full-liquid type
Device side is low-pressure side, due to the effect pressure of evaporimeter low-pressure side (high pressure refrigerant in fluid reservoir more than) of pressure reduction, opens the
Four control valve 9e, the cooling medium liquid cognition in fluid reservoir is conducted in flooded evaporator 11, therefore said structure can be first
Heat exchanger freeze when the remaining refrigerant injection in fluid reservoir is entered in main circulation loop, so as to make it into First Heat Exchanger in,
So as to effectively ensure the cooling heat exchange efficiency of First Heat Exchanger, the COP values of air-conditioning system are improved.
Preferably, one end of injector 15 and the injector 15 is additionally provided with the injection branch road 17 near institute
The 4th control valve 9e, the other end are stated near the fluid reservoir 10.By the version for arranging injector on injection branch road, energy
The enough pressure in especially fluid reservoir is less will can not to be opened in the case of refrigerant return to parallel branch, to play refrigerant
Injector can be passed through by injection in parallel branch, in so as to return to First Heat Exchanger 11 from fluid reservoir, it is changed to realize raising
The purpose of the thermal efficiency；(First Heat Exchanger heat exchange efficiency need not be improved, preferably it heats or freezes injection refrigerant is not needed
Compressor horsepower is relatively low) when, then close injector so that injector does not work.
Preferably, the injection branch road 17 is connected in the parallel branch 16 and near the one of the described first control valve 9a
End, between the other end and the other end of the injector 15 of the first control valve 9a bypass branch 18 is also associated with, and
The 5th control valve 9d is additionally provided with the bypass branch 18.By being also connected with arranging bypass branch and thereon in above-mentioned position
Arrange the 5th control valve version, enable to injection branch road can injection in parallel branch first control valve it is another
At end, the different embodiments of injection refrigerant are realized.
Preferably, when simultaneously with the first control valve 9a, the second control valve 9b, the 3rd control valve 9c, the 4th control valve 9e
With the 5th control valve 9d when, it is described first control valve 9a, it is described second control valve 9b, it is described 3rd control valve 9c, the described 4th
Control valve 9e and the 5th control valve 9d are magnetic valve.This is the air-conditioning for preventing compressor of air conditioner liquid hammer of the present utility model
The first, second, third, fourth and fifth of system control the preferred constructive form of valve.
Preferably, the First Heat Exchanger 11 is full-liquid type heat exchanger；And/or, second heat exchanger 4 is changed for finned
Hot device；And/or, the throttling arrangement 8 is electric expansion valve.This is the preferred constructive form of First Heat Exchanger of the present utility model
With the preferred constructive form of the second heat exchanger, the refrigerant memory capacity of full-liquid type heat exchanger is (or dry relative to finned heat exchanger
Formula heat exchanger) for it is much greater, so typically freezed to interior or heated using full-liquid type heat exchanger, throttling arrangement
It is a kind of preferred version to select as electric expansion valve, can realize the effect that reducing pressure by regulating flow expands.
Preferably, the air-conditioning system is the Worm type air-cooled heat pump of flooded evaporator.
The utility model also provides a kind of control method for preventing compressor of air conditioner liquid hammer, and it uses aforesaid air-conditioning system
System, judges the state that First Heat Exchanger freezes or heats, and then controls fluid reservoir work or do not work, it is to avoid compressor
Absorbing gas belt liquid, prevents compressor liquid hit phenomenon from occurring.
By the control method for preventing compressor of air conditioner liquid hammer of the present utility model, can as needed in First Heat Exchanger
Refrigeration (the refrigerant storage capacity of the heat exchanger being now connected with compressor air suction mouth big (i.e. First Heat Exchanger, preferably full-liquid type
Case tube heat exchanger)) when, do not start fluid reservoir, heat (the heat exchanger being now connected with compressor air suction mouth in First Heat Exchanger
Refrigerant storage capacity little (i.e. the second heat exchanger, be preferably finned heat exchanger)) when open fluid reservoir with the refrigerant of storing excess,
So as to the phenomenon for preventing compressor air suction mouth from absorbing gas belt liquid occur occurs, effectively prevent the situation of compressor liquid hammer；
Stored for the scheme of refrigerant by fluid reservoir when heating compared with First Heat Exchanger and freezing so that first changes
Hot device is obtained in that the refrigerant of greater flow to exchange heat when freezing, it is to avoid First Heat Exchanger reservoir volume is enough and because storage
The effect of flow container and cause effective refrigerant be stored with fluid reservoir, cause can not enter First Heat Exchanger, cause first heat exchange
The appearance of the relatively low situation of device heat exchange efficiency, thus be effectively improved air-conditioning system especially First Heat Exchanger freeze when change
The thermal efficiency；
The cooling medium liquid that effectively by fluid reservoir First Heat Exchanger can also be preferably to be condensed out in full-liquid type package
Body shift shell discharging pipe, to ensure First Heat Exchanger in have more fully area carry out condensing heat-exchange, change so as to improve first
Hot device is preferably the heating performance of full-liquid type case tube heat exchanger.
Preferably, when the First Heat Exchanger 11 freezes, open it is described first control valve 9a, control refrigerant from it is described simultaneously
Branch road 16 flows through connection, the fluid reservoir 10 does not work；
When the First Heat Exchanger 11 is heated, the first control valve 9a is closed, the parallel branch 16 disconnects, controls
The fluid reservoir 10 works, and refrigerant flows through the fluid reservoir and is stored.
This is the control method for preventing compressor of air conditioner liquid hammer of the present utility model when First Heat Exchanger freezes or makes
The hot time-division it is other preferably by first control valve control the step of, First Heat Exchanger freeze when, now First Heat Exchanger near pressure
The air entry end of contracting machine, because the storage refrigerant capacity of First Heat Exchanger is big compared with the second heat exchanger, will not now occur compressor
The risk of absorbing gas belt liquid, therefore fluid reservoir need not be used, then adjust first control valve open be located with short-circuit fluid reservoir pipeline,
It is set not work；When First Heat Exchanger is heated, now the second heat exchanger is near the air entry end of compressor, due to the second heat exchanger
Storage refrigerant capacity it is little compared with First Heat Exchanger, then it may happen that risk of the compressor air suction with liquid, therefore now need to make
Fluid reservoir work is obtained to carry out liquid storage (by way of closing first and controlling valve), so as to by unnecessary refrigerant storage, with reduction
Into the cold medium flux in finned heat exchanger, to reduce compressor air suction with liquid, by the risk of liquid hammer.
Preferably, when the air-conditioning system also includes the second control valve 9b, the 3rd control valve 9c：
When the First Heat Exchanger 11 freezes, control the first control valve 9a be always on, the second control valve 9b and the
Three control valve 9c are closed all the time；
When the First Heat Exchanger 11 is heated, control the first control valve 9a close all the time, the second control valve 9b and the
Three control valve 9c are always on.
This is when also having second and the 3rd control in the control method for preventing compressor of air conditioner liquid hammer of the present utility model
Why concrete control operation step during valve, will arrange second and the 3rd and control valve, be intended to ensure to be located fluid reservoir
Being precisely controlled for pipeline, prevents from also to be there are when storing refrigerant without the need for fluid reservoir coolant leakage into the situation in fluid reservoir
Occur；When First Heat Exchanger freezes, it is not necessary to use fluid reservoir, thus control first control valve be always on, second and the
Three control valves are closed all the time, and this is also preferred rate-determining steps, naturally it is also possible to which only control second and the 3rd controls in valve
Close；When First Heat Exchanger is heated, now need to use fluid reservoir to carry out storage refrigerant, prevent liquid hammer, therefore control the
One control valve close all the time, second and the 3rd control valve be always on, this is also preferred rate-determining steps.
Preferably, when the air-conditioning system also includes injection branch road and injector and the 4th control valve 9e and the 5th control
During valve 9d, and when the First Heat Exchanger refrigeration and compressor load reach A% when, open it is described 4th control valve and/or
5th control valve, control injection branch road is connected, and wherein A is preset constant, scope positioned at 0-100.
This is of the present utility model when the preferred control method and step with injection branch road and injector, the ejector action
When the action of coolant adding is usually applicable only to First Heat Exchanger refrigeration, because only that now refrigerant is just from fluid reservoir or parallel connection
Road flows to First Heat Exchanger and only First Heat Exchanger can just have the situation of cold medium shortage；If First Heat Exchanger is heated
When, refrigerant flows to the second heat exchanger from fluid reservoir or parallel branch, and the amount of storage of the second heat exchanger itself is just little, if now mended
If filling refrigerant, will increase in refrigerant liquid into the risk in compressor, cause liquid hammer；
Also, when First Heat Exchanger freezes and need the load of compressor high to a certain extent (preferably A%, A are
Variable between 0-100) when, illustrate that now compressor horsepower is larger, require supplementation with larger amount of refrigerant and just can guarantee that circulation, protect
Card compressor does not dally or prevents the situation of excessive discharge temperature from occurring, therefore now just needs control the 4th to control valve
And/or the 5th control valve open, connected with controlling injection branch road, final so that refrigerant enters parallel branch by fluid reservoir injection
In.
Preferably, open the 4th control valve and/or the 5th control valve, the action of control injection branch road connection continue △
After the t times, closing be opened the 4th control valve and/or the 5th control valve, to close the injection branch road.This is by opening
Injection branch road further control and regulation step and action after connecting, injection branch road is opened after continuing the △ t times, judges fluid reservoir
In refrigerant largely or entirely suffered into main circulation loop by injection, therefore just can close injection branch road so that
Air-conditioning system safety, normal operation.△ t are Preset Time parameter, and the △ t are according to actual condition and be actually needed and can occur
It is corresponding to change.
Operation principle of the present utility model and preferred embodiment is described below
The utility model provides a kind of air-conditioning system and its control method for preventing compressor of air conditioner liquid hammer, the air-conditioning system
The preferably Worm type air-cooled heat pump of flooded evaporator, by increasing fluid reservoir at flooded evaporator main liquid tube, with
Refrigerant excessive when heating is prevented to fin, the storage volumes of fin are not enough and cause compressor liquid hammer；In time will be full when heating
Condensed refrigerant is removed in liquid formula package, it is ensured that have enough area in package to carry out heat exchange condensation.
The utility model effectively solving finned heat exchanger memory space inadequate causes liquid coolant to cause pressure into compressor
The problem of contracting machine liquid hammer.
The beneficial effects of the utility model：Effectively prevent compressor liquid hammer, it is ensured that unit reliability；In time will be full when heating
Condensed refrigerant is removed in liquid formula package, it is ensured that have enough area in package to carry out heat exchange condensation.
Brief description：
Coolant refrigeration is flowed to：
--- --- --- finned heat exchanger 4 --- check valve 5a --- ball valve of cross valve 3 of oil eliminator 2 of compressor 1
6a --- --- ball valve 6b --- --- check valve 5b --- magnetic valve 9a --- full-liquid types of electric expansion valve 8 of device for drying and filtering 7
--- cross valve 3 --- vapour liquid separator 12 --- compressor 1 of case tube heat exchanger 11
Refrigerant heats flow direction：
--- --- --- the full-liquid type case tube heat exchanger 11 --- magnetic valve 9c --- of cross valve 3 of oil eliminator 2 of compressor 1
--- --- --- --- electronics is swollen for device for drying and filtering 7 --- ball valve 6b --- for ball valve 6a for check valve 5c for magnetic valve 9b for fluid reservoir 10
--- check valve 5d --- --- cross valve 3 --- vapour liquid separator 12 --- compressors 1 of finned heat exchanger 4 of swollen valve 8.
Specific embodiment：
The utility model is heat pump Worm type air-cooled to flooded evaporator, by full-liquid type package main liquid tube
Increase fluid reservoir, effectively prevent compressor liquid hammer, it is ensured that unit reliability；In time will be condensed in full-liquid type package when heating
Refrigerant is removed, it is ensured that have enough area in package to carry out heat exchange condensation.
1. kind of refrigeration cycle：
Cold-producing medium is compressed to the gas of HTHP in compressor 1, after external oil eliminator 2 isolates refrigeration oil
Become the refrigerant liquid of middle temperature high pressure into finned heat exchanger 4 through cross valve 3, each fin refrigerant liquid Jing separating tubes enter
Enter main liquid tube, Jing after check valve 5a, throttle in throttling components and parts 8 after device for drying and filtering 7, by check valve 5b, electromagnetism
Valve 9a enters the evaporation and heat-exchange of full-liquid type case tube heat exchanger 11 into the cold media gas of low-temp low-pressure, Jing cross valves 3, gas-liquid separator 12
Start next refrigerant circulation into compressor compresses 1 afterwards.
Process of refrigerastion, magnetic valve 9a is always on, magnetic valve 9b, magnetic valve 9c are closed all the time.Magnetic valve 9d, magnetic valve 9e
Control is as follows：
When detecting compressor loads to load A%, magnetic valve 9d, magnetic valve 9e are opened, and are closed after the △ t times.
2. circulation is heated：
Cold-producing medium is compressed to the gas of HTHP in compressor 1, after external oil eliminator 2 isolates refrigeration oil
Become the refrigerant liquid of middle temperature high pressure, Jing fluid reservoirs 10, magnetic valve 9b into full-liquid type case tube heat exchanger 11 through cross valve 3
Afterwards, throttle in throttling components and parts 8 after check valve 5c, filter 7, by check valve 5d, the heat exchange of refrigerant liquid fin
The evaporation and heat-exchange of device 3 into low-temp low-pressure cold media gas, under starting into compressor compresses 1 Jing after cross valve 3, gas-liquid separator 12
One refrigerant circulation.
Heating operations, magnetic valve 9a, magnetic valve 9d, magnetic valve 9e are closed all the time, magnetic valve 9b, magnetic valve 9c are opened all the time
Open.
3. the beneficial effect of fluid reservoir
When unit is heated, liquid storage fills the effect of one side and is to aid in a part of refrigerant of fin storage, it is to avoid fin storage is empty
Between it is not enough and cause refrigerant liquid to enter compressor air suction mouth, cause compressor liquid hammer, improve reliability；On the other hand, liquid storage
Tank is transferred out of package the refrigerant liquid condensed out in full-liquid type package, so that more fully area carries out condensing heat-exchange, carries
The heating performance of high full-liquid type package.
During refrigeration, without the need for the memory action of fluid reservoir, it is contemplated that there is part refrigerant to save bit by bit in fluid reservoir when heating,
Opened an account when compressor loads are to certain load, using the jet turbulent diffusion of injector, rolled up the refrigerant of flow container of attracting deposit,
Enter into and be evaporated in full-liquid type package.
4. other explanations：
Below check valve, ball valve, return line and its components and parts, hydrojet pipeline and its components and parts do not mentioned are provided to
The design of system needs and sets, and here does not just elaborate.
Those skilled in the art is it is easily understood that on the premise of not conflicting, above-mentioned each advantageous manner can be free
Ground combination, superposition.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
Any modification, equivalent and improvement made within the spirit and principle of utility model etc., should be included in the utility model
Protection domain within.The above is only preferred embodiment of the present utility model, it is noted that for the art
For those of ordinary skill, on the premise of without departing from the utility model know-why, some improvement and modification can also be made,
These are improved and modification also should be regarded as protection domain of the present utility model.
Claims (7)
1. a kind of air-conditioning system for preventing compressor of air conditioner liquid hammer, it is characterised in that：Including compressor (1), First Heat Exchanger
(11), the second heat exchanger (4) and throttling arrangement (8), wherein the storage volume of the First Heat Exchanger is more than the described second heat exchange
The storage volume of device, and be also connected with being provided with fluid reservoir (10) between the First Heat Exchanger and the throttling arrangement, in institute
State fluid reservoir two ends and be additionally provided with parallel branch (16) in parallel, be provided with the parallel branch and control the branch road break-make
First control valve (9a).
2. air-conditioning system according to claim 1, it is characterised in that：It is additionally provided with the entrance point of the fluid reservoir (10)
Second control valve (9b)；And/or, it is additionally provided with the 3rd control valve (9c) in the port of export of the fluid reservoir (10).
3. the air-conditioning system according to one of claim 1-2, it is characterised in that：Also it is connected to the fluid reservoir including one end
(10) the internal, other end is connected to the injection branch road (17) in the parallel branch (16), and also sets on the injection branch road
It is equipped with the 4th control valve (9e).
4. air-conditioning system according to claim 3, it is characterised in that：Injection is additionally provided with the injection branch road (17)
One end of device (15) and the injector (15) near the injector (15) one end, the other end near the fluid reservoir
(10)。
5. air-conditioning system according to claim 4, it is characterised in that：The injection branch road (17) is connected to described in parallel
On road (16) and near one end of the described first control valve (9a), the other end and the injector of first control valve (9a)
(15) bypass branch (18) is also associated between the other end, and the 5th control valve is additionally provided with the bypass branch (18)
(9d)。
6. air-conditioning system according to claim 5, it is characterised in that：Control when having the first control valve (9a), second simultaneously
When valve (9b) processed, the 3rd control valve (9c), the 4th control valve (9e) and the 5th control valve (9d),
First control valve (9a), second control valve (9b), the 3rd control valve (9c), the 4th control valve
(9e) it is magnetic valve with the described 5th control valve (9d).
7. the air-conditioning system according to claim 1-2, described in one of 4-6, it is characterised in that：The First Heat Exchanger (11) is full
Liquid formula heat exchanger；And/or, second heat exchanger (4) is finned heat exchanger；And/or, the throttling arrangement (8) is electronics
Expansion valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621173232.8U CN206131559U (en) | 2016-10-26 | 2016-10-26 | Prevent air conditioning system of air condition compressor liquid hammer |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106482407A (en) * | 2016-10-26 | 2017-03-08 | 珠海格力电器股份有限公司 | A kind of air-conditioning system for preventing compressor of air conditioner liquid hammer and its control method |
| CN108386357A (en) * | 2018-04-18 | 2018-08-10 | 北京燕都碧城科技有限公司 | A kind of single screw compressor anti-liquid impact device |
| CN108731311A (en) * | 2018-07-12 | 2018-11-02 | 珠海凌达压缩机有限公司 | A kind of compressor assembly and its air-conditioning system |
| CN110425112A (en) * | 2019-08-12 | 2019-11-08 | 郑州海尔空调器有限公司 | The control method of the air-conditioning of anti-compressor liquid hammer and anti-compressor liquid hammer |
| US10591100B2 (en) | 2017-11-15 | 2020-03-17 | Ford Global Technologies, Llc | Refrigerant hammer arrestor and refrigerant loop incorporating that refrigerant hammer arrestor |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106482407A (en) * | 2016-10-26 | 2017-03-08 | 珠海格力电器股份有限公司 | A kind of air-conditioning system for preventing compressor of air conditioner liquid hammer and its control method |
| CN106482407B (en) * | 2016-10-26 | 2022-03-08 | 珠海格力电器股份有限公司 | Air conditioning system for preventing liquid impact of air conditioning compressor and control method thereof |
| US10591100B2 (en) | 2017-11-15 | 2020-03-17 | Ford Global Technologies, Llc | Refrigerant hammer arrestor and refrigerant loop incorporating that refrigerant hammer arrestor |
| CN108386357A (en) * | 2018-04-18 | 2018-08-10 | 北京燕都碧城科技有限公司 | A kind of single screw compressor anti-liquid impact device |
| CN108731311A (en) * | 2018-07-12 | 2018-11-02 | 珠海凌达压缩机有限公司 | A kind of compressor assembly and its air-conditioning system |
| CN110425112A (en) * | 2019-08-12 | 2019-11-08 | 郑州海尔空调器有限公司 | The control method of the air-conditioning of anti-compressor liquid hammer and anti-compressor liquid hammer |
| CN110425112B (en) * | 2019-08-12 | 2022-09-06 | 郑州海尔空调器有限公司 | Compressor liquid impact prevention air conditioner and compressor liquid impact prevention control method |
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