CN205678933U - Coolant circulating system and there is its air-conditioner - Google Patents
Coolant circulating system and there is its air-conditioner Download PDFInfo
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- CN205678933U CN205678933U CN201620224388.8U CN201620224388U CN205678933U CN 205678933 U CN205678933 U CN 205678933U CN 201620224388 U CN201620224388 U CN 201620224388U CN 205678933 U CN205678933 U CN 205678933U
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- displacement compressor
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Abstract
The utility model provides a kind of coolant circulating system and has its air-conditioner, coolant circulating system includes positive displacement compressor, condenser, flash vessel and the evaporimeter being sequentially connected with, coolant circulating system also includes: the first control piper, pipeline connection between first end of the first control piper and condenser and flash vessel, second end of the first control piper connects with the control refrigerant inlet of positive displacement compressor, is provided with the first valve in the first control piper；And/or, the second control piper, the pipeline connection between the first end of the second control piper and flash vessel and evaporimeter, the second end of the second control piper connects with the control refrigerant inlet of positive displacement compressor, is provided with the second valve in the second control piper.To solve the bigger problem of pressure reduction of the both sides of pin of the prior art.
Description
Technical field
The utility model relates to compressor field, in particular to a kind of coolant circulating system and the air-conditioning with it
Device.
Background technology
Positive displacement compressor can there is one or more cylinder can realize whether control cylinder presses by high and low pressure
The switching of contracting, thus change in running order in the quantity of cylinder, it is achieved the transfiguration control of compressor.
Being provided with slide plate in the cylinder of positive displacement compressor, arranging a breach on slide plate, pin is arranged under slide plate
Side, is provided with spring below pin.Pin head is constantly in high pressure or low pressure, the high pressure being inputted by cylinder switching channel or
Low pressure acts on the back side of pin, makes the head of pin and the back side produce pressure differential, and this pressure differential can with compression spring (for example,
Pressure differential is 0.1MPa), make pin leave the breach on slide plate, make cylinder in running order, or pressure differential is less than spring
Elastic force, under the effect of elastic force, make the locked slide plate of pin, make cylinder not work.
Cylinder body switching in current positive displacement compressor control, switches the number of cylinder body generally by introducing high pressure or low pressure
Amount, thus reach the effect of compressor transfiguration.Current positive displacement compressor is mainly introduced by the suction line of positive displacement compressor
Low pressure, gas exhaust piping introduce high pressure, coordinate the Valve controlling such as two-port valve, check valve, triple valve, it is achieved introduce the control of pressure.
But, due to factors such as vibration of compressor, pipeline vibration, stress, when air intake duct, blast pipe are taken over, be used for introducing high pressure or
The control piper of low pressure is shorter and forms triangular structure with refrigerant pipeline, thus the rigidity causing pipeline overall is relatively big, hardening
A whole set of pipeline is unfavorable for absorbing vibration, simultaneously because the pressure being introduced by the gas exhaust piping of compressor too increases more greatly and to shake
Dynamic, this connecting tube stress, vibration are relatively big, have disconnected pipe hidden danger.
Further, the elastic force of the spring much larger than driving pin for the high pressure being introduced by the gas exhaust piping of positive displacement compressor,
And by the low pressure of the suction line introducing of positive displacement compressor much smaller than the elastic force of spring, cause the pressure reduction of both sides of pin relatively greatly,
Unfavorable to the life-span of parts.
Utility model content
Main purpose of the present utility model is the air-conditioner providing a kind of coolant circulating system and having it, existing to solve
There is the bigger problem of pressure reduction of the both sides of pin in technology.
To achieve these goals, according to an aspect of the present utility model, a kind of coolant circulating system is provided, including
Positive displacement compressor, condenser, flash vessel and the evaporimeter being sequentially connected with, coolant circulating system also includes: the first control piper, the
Pipeline connection between first end of one control piper and condenser and flash vessel, the second end of the first control piper and transfiguration pressure
The control refrigerant inlet connection of contracting machine, is provided with the first valve in the first control piper；And/or, the second control piper, the second control
Pipeline connection between first end on tubulation road and flash vessel and evaporimeter, the second end of the second control piper and positive displacement compressor
Control refrigerant inlet connection, the second control piper is provided with the second valve.
Further, also including cross valve, four ports of cross valve connect the exhaust outlet of positive displacement compressor, transfiguration respectively
The air entry of compressor, condenser and evaporimeter, the pipeline between the first end of the first control piper and condenser and flash vessel
Connection, the second end of the first control piper connects with the control refrigerant inlet of positive displacement compressor, is provided with in the first control piper
First valve；Pipeline connection between first end of the second control piper and evaporimeter and cross valve, the of the second control piper
Two ends connect with the control refrigerant inlet of positive displacement compressor, are provided with the second valve in the second control piper.
Further, be provided with first throttle assembly between condenser and flash vessel, the first end of the first control piper with
Pipeline between condenser and first throttle assembly connects.
Further, be provided with first throttle assembly between condenser and flash vessel, the first end of the first control piper with
Pipeline between first throttle assembly and flash vessel connects.
Further, also including cross valve, four ports of cross valve connect the exhaust outlet of positive displacement compressor, transfiguration respectively
The air entry of compressor, condenser and evaporimeter, the pipeline between the first end of the first control piper and cross valve and condenser
Connection, the second end of the first control piper connects with the control refrigerant inlet of positive displacement compressor, is provided with in the first control piper
First valve；Pipeline connection between first end of the second control piper and flash vessel and evaporimeter, the of the second control piper
Two ends connect with the control refrigerant inlet of positive displacement compressor, are provided with the second valve in the second control piper.
Further, be provided with the second orifice union between flash vessel and evaporimeter, the first end of the second control piper with
Pipeline connection between flash vessel and the second orifice union.
Further, be provided with the second orifice union between flash vessel and evaporimeter, the first end of the second control piper with
Pipeline connection between second orifice union and evaporimeter.
Further, the first control piper and/or the second control piper are provided with gas-liquid separator.
Further, including the first control piper and the second control piper, coolant circulating system also includes converging pipeline, the
Second end of the second end of one control piper and the second control piper all with the inlet communication converging pipeline, converge the outlet of pipeline
With the control refrigerant inlet of positive displacement compressor, converge and pipeline is provided with gas-liquid separator.
According to another aspect of the present utility model, providing a kind of air-conditioner, further, air-conditioner includes as mentioned above
Coolant circulating system.
Application the technical solution of the utility model, the pressure in pipeline between condenser and flash vessel compresses less than transfiguration
Pressure in the blast pipe of machine, utilizes this pressure as high drive pin to realize the change of positive displacement compressor duty,
Reduce the pressure differential of pin both sides.Owing to the pressure in the pipeline between flash vessel and evaporimeter is higher than the suction of positive displacement compressor
Therefore this pressure introduced positive displacement compressor as low pressure by the pressure of gas port, it is also possible to plays the pressure of the both sides reducing pin
The effect of difference, advantageously reduces the damage of pin and slide plate, is conducive to improving its life-span.
Further, by the first control piper or the second control piper are connected to the position away from positive displacement compressor,
Reduce the integral rigidity of pipe-line system, advantageously reduce the vibration of system.
Brief description
A part of Figure of description constituting the application is used for providing being further appreciated by of the present utility model, this practicality
Novel schematic description and description is used for explaining the utility model, is not intended that to improper restriction of the present utility model.
In the accompanying drawings:
Fig. 1 shows the structural representation of the first embodiment of coolant circulating system of the present utility model；
Fig. 2 shows the structural representation of the second embodiment of coolant circulating system of the present utility model；
Fig. 3 shows the structural representation of the 3rd embodiment of coolant circulating system of the present utility model.
Wherein, above-mentioned accompanying drawing includes that the following drawings marks:
1st, the first control piper；11st, the first valve；12nd, the first dotted line；2nd, condenser；3rd, flash vessel；4th, the second control pipe
Road；41st, the second valve；42nd, the second dotted line；5th, evaporimeter；6th, cross valve；71st, first throttle assembly；72nd, the second orifice union；
8th, compressor；9th, gas-liquid separator；10th, tonifying Qi pipeline.
Detailed description of the invention
It should be noted that in the case of not conflicting, the embodiment in the application and the feature in embodiment can phases
Combination mutually.Describe the utility model below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
Embodiment one:
With reference to shown in Fig. 1, the 2nd, the coolant circulating system of the present embodiment includes positive displacement compressor the 8th, the condenser that is sequentially connected with
Flash vessel 3 and evaporimeter 5.
Coolant circulating system is during work, and the refrigerant after positive displacement compressor 8 compression is delivered to condenser 2, cold
Refrigerant exothermic condensation in condenser 2, condensed refrigerant is delivered to the import of flash vessel 3, and flash vessel 3 also has gaseous coolant outlet
With liquid refrigerants outlet, gaseous coolant outlet is connected by increasing enthalpy tonifying Qi pipeline 10 with the increasing enthalpy tonifying Qi import of positive displacement compressor 8,
The liquid refrigerants outlet of flash vessel 3 connects with evaporimeter 5, and in flash vessel 3, isolated gaseous coolant is through increasing enthalpy tonifying Qi pipeline 10
Being delivered to positive displacement compressor 8, in flash vessel 3, isolated liquid refrigerants is delivered to evaporimeter 5, liquid refrigerants in evaporimeter 5
Evaporation is to absorb heat.
In the present embodiment, coolant circulating system also includes the first control piper 1 and the second control piper 4.
Pipeline connection between first end of described first control piper 1 and condenser 2 and flash vessel 3, described first control
Second end on tubulation road 1 connects with the control refrigerant inlet of described positive displacement compressor, is provided with in described first control piper 1
One valve 11.Or, the pipeline connection between the first end of described second control piper 4 and flash vessel 3 and evaporimeter 5, described
Second end of two control pipers 4 connects with the control refrigerant inlet of described positive displacement compressor, arranges in described second control piper 4
There is the second valve 41.
Use the refrigerant drawn in the pipeline between condenser 2 and flash vessel 3 as the high pressure of control positive displacement compressor 8,
When the first valve 11 is in open mode, positive displacement compressor 8 enters multi-cylinder mode of operation；Or, use flash vessel 3 and evaporimeter
The refrigerant drawn in pipeline between 5 is as low pressure, and when the second valve 41 is in open mode, positive displacement compressor enters twin-tub
Mode of operation.
The pressure in pipeline between condenser 2 and flash vessel 3 is less than the pressure in the blast pipe of positive displacement compressor 8, profit
With this pressure as high drive pin to realize the change of positive displacement compressor duty, reduce the pressure of pin both sides
Difference.Owing to the pressure in the pipeline between flash vessel 3 and evaporimeter 5 is higher than the pressure of the air entry of positive displacement compressor 8, therefore will
This pressure introduces positive displacement compressor as low pressure, it is also possible to play the effect of the pressure differential of the both sides reducing pin, is conducive to fall
Low pin and the damage of slide plate, be conducive to improving its life-span.
Further, by the first control piper 1 or the second control piper 4 are connected to the position away from positive displacement compressor
Put, reduce the integral rigidity of pipe-line system, advantageously reduce the vibration of system.
The coolant circulating system of the present embodiment can be used for Teat pump boiler, the water dispenser with refrigerating function and air-conditioner etc.
Equipment.
Fig. 1 shows the structural representation of the air-conditioner of the above-mentioned coolant circulating system of tool.Preferably, this air-conditioner is tool
There is refrigeration and heat the air-conditioner of two kinds of mode of operations.
This air-conditioner also includes cross valve 6, and four ports of cross valve 6 connect the exhaust outlet of positive displacement compressor 8, change respectively
The air entry of positive displacement compressor 8, condenser 2 and evaporimeter 5.
In cooling mode, the refrigerant condensation heat release in the condenser 2 of air-conditioner, the refrigerant evaporation heat absorption in evaporimeter 5.
Refrigerant after positive displacement compressor 8 compression is delivered to condenser 2 and outside air through cross valve 6 and carries out heat exchange with exothermic condensation, cold
Refrigerant after Ning enters flash vessel 3, and flash vessel 3 has gaseous coolant outlet and liquid refrigerants outlet, the gaseous coolant of flash vessel 3
Outlet is connected by increasing enthalpy tonifying Qi pipeline 10 with the increasing enthalpy gas supplementing opening of positive displacement compressor 8, the liquid refrigerants outlet output of flash vessel 3
Refrigerant be delivered to evaporimeter 5, in evaporimeter 5 refrigerant evaporation absorb heat to reduce indoor temperature, in evaporimeter 5 after heat exchange
Refrigerant is delivered to the air entry of positive displacement compressor 8 through cross valve 6.
In a heating mode, the refrigerant condensation heat release in the evaporimeter 5 of air-conditioner, the refrigerant evaporation heat absorption in condenser 2.
Refrigerant after positive displacement compressor 8 compression is delivered to evaporimeter 5 through cross valve 6, and refrigerant condenses heat release to improve room in evaporimeter 5
Interior temperature, the refrigerant after evaporimeter 5 heat exchange is delivered in condenser 2 after flash vessel 3, and in condenser 2, refrigerant evaporation is inhaled
Heat, the refrigerant after absorbing heat in condenser 22 enters the air entry of positive displacement compressor 8 through cross valve 6.
In conjunction with shown in Fig. 1, the pipeline between the first end of described first control piper 1 and condenser 2 and flash vessel 3 is even
Logical, described second end of the first control piper 1 connects with the control refrigerant inlet of described positive displacement compressor, described first control pipe
Road 1 is provided with the first valve 11.
Pipeline connection between first end of described second control piper 4 and evaporimeter 5 and cross valve 6, described second control
Second end on tubulation road 4 connects with the control refrigerant inlet of described positive displacement compressor, is provided with in described second control piper 4
Two valves 41.
In cooling mode, if the first valve 11 in the first control piper 1 is in open mode, then by condenser 2 with
Refrigerant between flash vessel 3 introduces the control refrigerant inlet of positive displacement compressor 8, and positive displacement compressor 8 enters multi-cylinder mode of operation, if
Second valve 41 of the second control piper 4 is in open mode, then the refrigerant between cross valve 6 and evaporimeter 5 is introduced transfiguration
The control refrigerant inlet of compressor 8, positive displacement compressor enters twin-tub mode of operation.
In cooling mode, the pressure in the pipeline between condenser 2 and flash vessel 3 is less than the exhaust of positive displacement compressor 8
Pressure in pipe, utilizes this pressure as high drive pin to realize the change of positive displacement compressor duty, reduces pin
The pressure differential of nail both sides.
In a heating mode, if the first valve 11 in the first control piper 1 is in open mode, then by condenser 2 with
Refrigerant between flash vessel 3 introduces the control refrigerant inlet of positive displacement compressor, and positive displacement compressor 8 enters twin-tub cylinder working pattern.
Owing to the pressure in the pipeline between flash vessel 3 and condenser 2 is higher than the pressure of the air entry of positive displacement compressor, therefore by this pressure
Masterpiece is that low pressure introduces positive displacement compressor, it is also possible to play the effect of the pressure differential of the both sides reducing pin.
Preferably, it is provided with first throttle assembly 71 between condenser 2 and flash vessel 3, the first end of the first control piper 1
It is connected with the pipeline between condenser 2 and first throttle assembly 71.
Can also preferably, as shown in the first dotted line 12 in Fig. 1, the first end of the first control piper 1 and first throttle
Pipeline between assembly 71 and flash vessel 3 connects.
Described coolant circulating system also includes converging pipeline, the second end of described first control piper 1 and described second control
Second end on tubulation road 4 all with the described inlet communication converging pipeline, the described outlet converging pipeline is with described positive displacement compressor
Control refrigerant inlet, is provided with gas-liquid separator 9 described converging in pipeline.
Preferably the first control piper 1 and/or the second control piper 4 can also be provided with gas-liquid separator 9.
In the present embodiment, first throttle assembly 71 is electric expansion valve, and the first valve 11 and the second valve 41 are electromagnetism
Two-port valve.
Pipeline from first throttle assembly 71 to condenser 2 (outdoor heat exchanger) or (first throttle assembly 71 with
Pipeline between flash vessel 3) upper introduce pressure Pa, from cross valve 6 to evaporimeter 5 (indoor heat exchanger) pipeline introduce
Pressure Pb, and control its pressure introducing positive displacement compressor 8 by three-way solenoid valve break-make, thus realize positive displacement compressor 8
Transfiguration controls.Systematic schematic diagram is as it is shown in figure 1, major control mode is as follows:
1. refrigeration mode
When being in refrigeration mode, being high pressure at the Pa of the first valve 11, now introduced high pressure Pa will be less than transfiguration
The pressure of the exhaust pipeline section of compressor 8.At second valve, Pb is low pressure.It (is not situated between in detail according to compressor transfiguration principle herein
Continue), when
When A, the first valve 11 lead to and the second valve 41 closes, now compressor introduces pressure Pa, and it is (many that compressor is in three cylinders
Cylinder) mode of operation；
When B, the first valve 11 break and the second valve 41 leads to, now compressor introduces pressure Pb, and it is (general that compressor is in two cylinders
Logical) mode of operation；
When C, the first valve 11 and the second valve 41 all disconnect, before compressor keeps, state is run.
2. heating mode
When being in heating mode, at the first valve 11, Pa is low pressure.At second valve 41, Pb is high pressure, now introduced
High pressure Pb will less than exhaust pipeline section pressure.According to positive displacement compressor transfiguration principle, when
When A, the first valve 11 lead to and the second valve 41 closes, now compressor introduces pressure Pa, and it is (general that compressor is in two cylinders
Logical) mode of operation；
When B, the first valve 11 break and the second valve 41 leads to, now compressor introduces pressure Pb, and it is (many that compressor is in three cylinders
Cylinder) mode of operation；
When C, the first valve 11 and the second valve 41 all disconnect, before compressor keeps, state is run.
The positive displacement compressor transfiguration control mode of prior art, is directly at the air intake duct of positive displacement compressor, blast pipe
Introduce high and low pressure respectively, realize that the transfiguration of positive displacement compressor runs, now whole pipeline hardening, use the utility model institute
Use high-low pressure control mode, not only can effectively quickly realize that the transfiguration of compressor runs, also can reduce pipeline in running
Vibration, reduces the stress of pipeline.
Slide plate, pin etc. when on the other hand using high-low pressure control mode used by the utility model can reduce many cylinder workings
The pressure differential of both sides, improves the compressor life-span.Compressor pin switching pressure reduction has only to 0.1-0.5MPa, and suction and discharge pressure reduction is high
When to reach 2.5MPa even more high.
According to the different high-low pressure incorporation way of employing, it is achieved the multiple control modes of compressor transfiguration.
The technique effect of the scheme of this Shen embodiment: use the program, on the premise of realizing that positive displacement compressor controls, energy
Effectively reduce pipeline vibration, stress, reduce compressor pressure at both sides difference, extend lifetime of system, improve security reliability.
According to the another aspect of the application, the present embodiment also discloses a kind of air-conditioner, and this air-conditioner includes above-mentioned cold
Matchmaker's circulatory system.
Embodiment two:
As in figure 2 it is shown, the present embodiment is from the different of embodiment one: first end and four of described first control piper 1
Logical pipeline connection between valve 6 and condenser 2, the second end of described first control piper 1 and the control of described positive displacement compressor
Refrigerant inlet connects, and is provided with the first valve 11 in described first control piper 1.
Pipeline connection between first end of described second control piper 4 and flash vessel 3 and evaporimeter 5, described second control
Second end on tubulation road 4 connects with the control refrigerant inlet of described positive displacement compressor, is provided with in described second control piper 4
Two valves 41.
Alternatively, it is provided with the second orifice union 72 between flash vessel 3 and evaporimeter 5, the first end of the second control piper 4
And the pipeline connection between the second orifice union 72 and evaporimeter 5.
Can also preferably, as shown in the second dotted line 42 in Fig. 2, the first end of the second control piper 4 and flash vessel 3 with
Pipeline connection between second orifice union 72.
Described coolant circulating system also includes converging pipeline, the second end of described first control piper 1 and described second control
Second end on tubulation road 4 all with the described inlet communication converging pipeline, the described outlet converging pipeline is with described positive displacement compressor
Control refrigerant inlet, is provided with gas-liquid separator 9 described converging in pipeline.
In the present embodiment, the second orifice union 72 is electric expansion valve, and the first valve 11 and the second valve 41 are electromagnetism
Two-port valve.
Pressure Pa is introduced, from the second orifice union 72 to indoor heat exchanger pipeline from cross valve 6 to condenser 2
Pipeline (or the pipeline between the second orifice union 72 and flash vessel) between (big valve) is upper introduces pressure Pb, and uses electromagnetism
Two-port valve break-make controls its pressure introducing compressor, thus realizes the transfiguration control of compressor.Systematic schematic diagram such as Fig. 2 institute
Showing, major control mode is as described below:
1. refrigeration mode
When being in refrigeration mode, at the first valve 11, Pa is high pressure.At second valve 41, Pb is low pressure.According to compressor
Transfiguration principle (is not described in detail) herein, when
When A, the first valve 11 lead to and the second valve 41 closes, now compressor introduces pressure Pa, and it is (many that compressor is in three cylinders
Cylinder) mode of operation；
When B, the first valve 11 break and the second valve 41 leads to, now compressor introduces pressure Pb, and it is (general that compressor is in two cylinders
Logical) mode of operation；
When C, the first valve 11 and the second valve 41 all disconnect, before compressor keeps, state is run.
2. heating mode
When being in heating mode, at the first valve 11, Pa is low pressure.At second valve 41, Pb is high pressure, now introduced
High pressure Pb will less than exhaust pipeline section pressure.According to compressor transfiguration principle, when
When A, the first valve 11 lead to and the second valve 41 closes, now compressor introduces pressure Pa, and it is (general that compressor is in two cylinders
Logical) mode of operation；
When B, the first valve 11 break and the second valve 41 leads to, now compressor introduces pressure Pb, and it is (many that compressor is in three cylinders
Cylinder) mode of operation；
When C, the first valve 11 and the second valve 41 all disconnect, before compressor keeps, state is run.
Embodiment three:
As it is shown on figure 3, the present embodiment is from the different of embodiment one: the first end of described first control piper 1 with cold
Pipeline connection between condenser 2 and flash vessel 3, the second end of described first control piper 1 and the control of described positive displacement compressor
Refrigerant inlet connects, and is provided with the first valve 11 in described first control piper 1.First end of described second control piper 4 with
Pipeline connection between flash vessel 3 and evaporimeter 5, the second end of described second control piper 4 and the control of described positive displacement compressor
Refrigerant inlet processed connects, and is provided with the second valve 41 in described second control piper 4.
It in the present embodiment, between condenser 2 and flash vessel 3, is provided with first throttle assembly 71.Flash vessel 3 and evaporimeter 5
Between be provided with the second orifice union 72.
Alternatively, the first end of the first control piper 1 is connected with the pipeline between condenser 2 and first throttle assembly 71.
Pipeline connection between first end of the second control piper 4 and the second orifice union 72 and evaporimeter 5.
Can also preferably, as shown in the first dotted line 12 in Fig. 3 and the second dotted line 42, the first of the first control piper 1
End is connected with the pipeline between first throttle assembly 71 and flash vessel 3.First end of the second control piper 4 and flash vessel 3 and the
Pipeline connection between two orifice unions 72.
Described coolant circulating system also includes converging pipeline, the second end of described first control piper 1 and described second control
Second end on tubulation road 4 all with the described inlet communication converging pipeline, the described outlet converging pipeline is with described positive displacement compressor
Control refrigerant inlet, is provided with gas-liquid separator 9 described converging in pipeline.
In the present embodiment, first throttle assembly 71 and the second orifice union 72 are electric expansion valve, the first valve 11 and the
Two valves 41 are electromagnetism two-port valve.
Pipeline from first throttle assembly 71 to outdoor heat exchanger (or between first throttle assembly 71 and flash vessel
Pipeline) upper introduce pressure Pa, from the second orifice union 72 to indoor heat exchanger (big valve) pipeline (or second section
Pipeline between stream assembly 72 and flash vessel) the upper pressure Pb that introduces, and control its introducing compressor by electromagnetism two-port valve break-make
Pressure, thus realize compressor transfiguration control.Systematic schematic diagram is as it is shown on figure 3, major control mode is as described below:
1. refrigeration mode
When being in refrigeration mode, at the first valve 11, Pa is high pressure, and now introduced high pressure Pa will be less than blast pipe
The pressure of section.At second valve 41, Pb is low pressure.According to compressor transfiguration principle (being not described in detail) herein, when
When A, the first valve 11 lead to and the second valve 41 closes, now compressor introduces pressure Pa, and it is (many that compressor is in three cylinders
Cylinder) mode of operation；
When B, the first valve 11 break and the second valve 41 leads to, now compressor introduces pressure Pb, and it is (general that compressor is in two cylinders
Logical) mode of operation；
When C, the first valve 11 and the second valve 41 all disconnect, before compressor keeps, state is run.
2. heating mode
When being in heating mode, at the first valve 11, Pa is low pressure.At second valve 41, Pb is high pressure, now introduced
High pressure Pb will less than exhaust pipeline section pressure.According to compressor transfiguration principle, when
When A, the first valve 11 lead to and the second valve 41 closes, now compressor introduces pressure Pa, and it is (general that compressor is in two cylinders
Logical) mode of operation；
When B, the first valve 11 break and the second valve 41 leads to, now compressor introduces pressure Pb, and it is (many that compressor is in three cylinders
Cylinder) mode of operation；
When C, the first valve 11 and the second valve 41 all disconnect, before compressor keeps, state is run.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for this
For the technical staff in field, the utility model can have various modifications and variations.All in spirit of the present utility model and principle
Within, any modification, equivalent substitution and improvement etc. made, should be included within protection domain of the present utility model.
Claims (10)
1. a coolant circulating system, including the positive displacement compressor being sequentially connected with (8), condenser (2), flash vessel (3) and evaporation
Device (5), it is characterised in that described coolant circulating system also includes:
First control piper (1), the pipe between the first end of described first control piper (1) and condenser (2) and flash vessel (3)
Road connects, and described second end of the first control piper (1) connects with the control refrigerant inlet of described positive displacement compressor, and described first
Control piper (1) is provided with the first valve (11)；And/or,
Second control piper (4), the pipe between the first end of described second control piper (4) and flash vessel (3) and evaporimeter (5)
Road connects, and described second end of the second control piper (4) connects with the control refrigerant inlet of described positive displacement compressor, and described second
Control piper (4) is provided with the second valve (41).
2. coolant circulating system according to claim 1, it is characterised in that also include cross valve (6), described cross valve
(6) four ports connect the air entry, described of the exhaust outlet of described positive displacement compressor (8), described positive displacement compressor (8) respectively
Condenser (2) and described evaporimeter (5),
Pipeline connection between first end of described first control piper (1) and condenser (2) and flash vessel (3), described first
Second end of control piper (1) connects with the control refrigerant inlet of described positive displacement compressor, sets in described first control piper (1)
It is equipped with the first valve (11)；
Pipeline connection between first end of described second control piper (4) and evaporimeter (5) and cross valve (6), described second
Second end of control piper (4) connects with the control refrigerant inlet of described positive displacement compressor, sets in described second control piper (4)
It is equipped with the second valve (41).
3. coolant circulating system according to claim 1 and 2, it is characterised in that described condenser (2) and described flash vessel
(3) it is provided with first throttle assembly (71), the first end of described first control piper (1) and described condenser (2) and institute between
State the pipeline between first throttle assembly (71) to connect.
4. coolant circulating system according to claim 1 and 2, it is characterised in that described condenser (2) and described flash vessel
(3) it is provided with first throttle assembly (71), the first end of described first control piper (1) and described first throttle assembly between
(71) pipeline and between described flash vessel (3) connects.
5. coolant circulating system according to claim 1, it is characterised in that also include cross valve (6), described cross valve
(6) four ports connect the air entry, described of the exhaust outlet of described positive displacement compressor (8), described positive displacement compressor (8) respectively
Condenser (2) and described evaporimeter (5),
Pipeline connection between first end of described first control piper (1) and cross valve (6) and condenser (2), described first
Second end of control piper (1) connects with the control refrigerant inlet of described positive displacement compressor, sets in described first control piper (1)
It is equipped with the first valve (11)；
Pipeline connection between first end of described second control piper (4) and flash vessel (3) and evaporimeter (5), described second
Second end of control piper (4) connects with the control refrigerant inlet of described positive displacement compressor, sets in described second control piper (4)
It is equipped with the second valve (41).
6. coolant circulating system according to claim 1 or 5, it is characterised in that described flash vessel (3) and described evaporimeter
(5) it is provided with the second orifice union (72), the first end of described second control piper (4) and described flash vessel (3) and institute between
State the pipeline connection between the second orifice union (72).
7. coolant circulating system according to claim 1 or 5, it is characterised in that described flash vessel (3) and described evaporimeter
(5) it is provided with the second orifice union (72), the first end of described second control piper (4) and described second orifice union between
(72) pipeline connection and between described evaporimeter (5).
8. coolant circulating system according to claim 1, it is characterised in that described first control piper (1) and/or described
Second control piper (4) is provided with gas-liquid separator (9).
9. the coolant circulating system according to according to any one of claim the 1st, the 2nd, 5 and 8, it is characterised in that include described first
Control piper (1) and described second control piper (4), described coolant circulating system also includes converging pipeline, described first control
Second end of the second end of pipeline (1) and described second control piper (4) all with the described inlet communication converging pipeline, described remittance
Close outlet and the control refrigerant inlet of described positive displacement compressor of pipeline, described converging pipeline is provided with gas-liquid separator (9).
10. an air-conditioner, it is characterised in that described air-conditioner includes the refrigerant circulation according to any one of claim 1 to 9
System.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620224388.8U CN205678933U (en) | 2016-03-21 | 2016-03-21 | Coolant circulating system and there is its air-conditioner |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620224388.8U CN205678933U (en) | 2016-03-21 | 2016-03-21 | Coolant circulating system and there is its air-conditioner |
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| CN205678933U true CN205678933U (en) | 2016-11-09 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107218740A (en) * | 2016-03-21 | 2017-09-29 | 珠海格力电器股份有限公司 | Coolant circulating system and the air conditioner with it |
| CN110307660A (en) * | 2019-06-26 | 2019-10-08 | 珠海格力电器股份有限公司 | Multi-stage compression air-conditioning system and its control method |
-
2016
- 2016-03-21 CN CN201620224388.8U patent/CN205678933U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107218740A (en) * | 2016-03-21 | 2017-09-29 | 珠海格力电器股份有限公司 | Coolant circulating system and the air conditioner with it |
| CN107218740B (en) * | 2016-03-21 | 2023-12-12 | 珠海格力电器股份有限公司 | Refrigerant circulation system and air conditioner with same |
| CN110307660A (en) * | 2019-06-26 | 2019-10-08 | 珠海格力电器股份有限公司 | Multi-stage compression air-conditioning system and its control method |
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