CN105650926A - Refrigerant circulation system and air conditioner with same - Google Patents
Refrigerant circulation system and air conditioner with same Download PDFInfo
- Publication number
- CN105650926A CN105650926A CN201610164714.5A CN201610164714A CN105650926A CN 105650926 A CN105650926 A CN 105650926A CN 201610164714 A CN201610164714 A CN 201610164714A CN 105650926 A CN105650926 A CN 105650926A
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- CN
- China
- Prior art keywords
- pilot piping
- positive displacement
- displacement compressor
- flasher
- condenser
- Prior art date
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- 239000003507 refrigerant Substances 0.000 title claims abstract description 71
- 238000006073 displacement reaction Methods 0.000 claims description 93
- 239000006200 vaporizer Substances 0.000 claims description 47
- 239000002826 coolant Substances 0.000 claims description 38
- 230000008676 import Effects 0.000 claims description 22
- 239000007788 liquid Substances 0.000 claims description 15
- 238000013022 venting Methods 0.000 claims description 5
- 230000008859 change Effects 0.000 description 10
- 238000010438 heat treatment Methods 0.000 description 8
- 238000005057 refrigeration Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 230000005494 condensation Effects 0.000 description 5
- 238000009833 condensation Methods 0.000 description 5
- 230000009467 reduction Effects 0.000 description 5
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 238000001704 evaporation Methods 0.000 description 4
- 230000008020 evaporation Effects 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000009897 systematic effect Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- 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
- F25B13/00—Compression machines, plants or systems, with reversible cycle
-
- 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
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
-
- 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
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/31—Expansion valves
-
- 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
- F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
- F25B2313/027—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means
- F25B2313/0271—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means the compressor allows rotation in reverse direction
-
- 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
- F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
- F25B2313/027—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means
- F25B2313/02741—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means using one four-way valve
-
- 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
- F25B2500/00—Problems to be solved
- F25B2500/13—Vibrations
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
The invention provides a refrigerant circulating system and an air conditioner with the same, wherein the refrigerant circulating system comprises a variable volume compressor, a condenser, a flash evaporator and an evaporator which are sequentially connected, and the refrigerant circulating system also comprises: the first end of the first control pipeline is communicated with a pipeline between the condenser and the flash evaporator, and the second end of the first control pipeline is communicated with a control refrigerant inlet of the variable-capacity compressor in a switching-on and switching-off mode; and/or a second control pipeline, wherein the first end of the second control pipeline is communicated with the pipeline between the flash evaporator and the evaporator, and the second end of the second control pipeline is selectively communicated with the control refrigerant inlet of the variable-capacity compressor in an on-off manner. The problem of large vibration in the prior art is solved.
Description
Technical field
The present invention relates to compressor field, specifically, it relates to a kind of coolant circulating system and there is its conditioner.
Background technology
Positive displacement compressor can have one or more cylinder can realize, by high and low pressure, the switching whether control cylinder carry out compressing, thus change in running order in the quantity of cylinder, it is achieved control is held in the change of compressor.
Being provided with slide plate in the cylinder of positive displacement compressor, arrange a breach on slide plate, pin is arranged on the lower section of slide plate, is provided with spring below pin. Pin head is in high pressure or low pressure always, the back side of pin is acted on by the high pressure of cylinder switching passage input or low pressure, head and the back side of pin is made to produce pressure difference, this pressure difference can compression spring (such as, pressure difference is 0.1MPa), make the breach that pin leaves on slide plate, make cylinder in running order, or pressure difference is less than the elastic force of spring, under the effect of elastic force, makes the dead slide plate of pin lock, cylinder is not worked.
Cylinder body switching in the control of current positive displacement compressor, is generally the quantity being carried out diverter cylinder body by introducing high pressure or low pressure, thus reaches the effect that compressor variable holds. Current positive displacement compressor mainly introduces low pressure by the suction line of positive displacement compressor, exhaust line introduces high pressure, coordinates the Valve controlling such as two-port valve, check valve, T-valve, it is achieved introduce the control of pressure. But, due to factors such as vibration of compressor, pipeline vibration, stress, when taking over from air suction pipe, vapor pipe, for to introduce the pilot piping of high pressure or low pressure shorter and forms trilateral structure with refrigerant pipeline, thus the rigidity causing pipeline entirety is bigger, the a whole set of pipeline that hardened is unfavorable for absorbing vibration, and this pipe connecting stress, vibration are relatively big, have disconnected pipe hidden danger.
Further, the high pressure introduced by the exhaust line of positive displacement compressor is much larger than the elastic force of the spring driving pin, and the low pressure introduced by the suction line of positive displacement compressor is much smaller than the elastic force of spring, cause the pressure reduction of the both sides of pin relatively big, the life-span of component is unfavorable.
Summary of the invention
The main purpose of the present invention is the conditioner providing a kind of coolant circulating system and having it, to solve the bigger problem of vibration of the prior art.
In order to realize above-mentioned purpose, according to an aspect of the present invention, provide a kind of coolant circulating system, coolant circulating system comprises the positive displacement compressor, condenser, flasher and the vaporizer that connect successively, coolant circulating system also comprises: the first pilot piping, the first end of the first pilot piping and the pipeline connection between condenser and flasher, the 2nd end of the first pilot piping is connected with the control refrigerant inlet of positive displacement compressor with can selecting break-make; And/or, the 2nd pilot piping, the first end of the 2nd pilot piping and the pipeline connection between flasher and vaporizer, the 2nd end of the 2nd pilot piping is connected with the control refrigerant inlet of positive displacement compressor with can selecting break-make.
Further, also comprise four-way valve, four ports of four-way valve connect the venting port of positive displacement compressor, the suction opening of positive displacement compressor, condenser and vaporizer respectively, the first end of the first pilot piping and the pipeline connection between condenser and flasher, the 2nd end of the first pilot piping is connected with the control refrigerant inlet of positive displacement compressor with can selecting break-make; The first end of the 2nd pilot piping and the pipeline connection between vaporizer and four-way valve, the 2nd end of the 2nd pilot piping is connected with the control refrigerant inlet of positive displacement compressor with can selecting break-make.
Further, being provided with first throttle assembly between condenser and flasher, the pipeline between the first end of the first pilot piping with condenser and first throttle assembly is connected.
Further, being provided with first throttle assembly between condenser and flasher, the pipeline between the first end of the first pilot piping with first throttle assembly and flasher is connected.
Further, also comprise four-way valve, four ports of four-way valve connect the venting port of positive displacement compressor, the suction opening of positive displacement compressor, condenser and vaporizer respectively, the first end of the first pilot piping and the pipeline connection between four-way valve and condenser, the 2nd end of the first pilot piping is connected with the control refrigerant inlet of positive displacement compressor with can selecting break-make; The first end of the 2nd pilot piping and the pipeline connection between flasher and vaporizer, the 2nd end of the 2nd pilot piping is connected with the control refrigerant inlet of positive displacement compressor with can selecting break-make.
Further, between flasher and vaporizer, it is provided with the 2nd throttling assembly, the pipeline connection between the first end of the 2nd pilot piping and flasher and the 2nd throttling assembly.
Further, the 2nd throttling assembly it is provided with between flasher and vaporizer, the pipeline connection between the first end of the 2nd pilot piping and the 2nd throttling assembly and vaporizer.
Further, the first pilot piping and/or the 2nd pilot piping are provided with gas-liquid separator.
Further, comprise the first pilot piping and the 2nd pilot piping, coolant circulating system also comprises T-valve, T-valve comprises the first import, the 2nd import and outlet, first import is connected with the 2nd end of the first pilot piping, 2nd import is connected with the 2nd end of the 2nd pilot piping, and the outlet of T-valve is connected with the control refrigerant inlet of positive displacement compressor.
Further, it is provided with gas-liquid separator between the outlet of T-valve and the control refrigerant inlet of positive displacement compressor.
According to a further aspect in the invention, it provides a kind of conditioner, conditioner comprises above-mentioned coolant circulating system.
The technical scheme of application the present invention, the pressure in pipeline between condenser and flasher is lower than the pressure in the vapor pipe of positive displacement compressor, utilize this pressure as high drive pin to realize the change of positive displacement compressor working order, reduce the pressure difference of pin both sides. Owing to the pressure in the pipeline between flasher and vaporizer is higher than the pressure of the suction opening of positive displacement compressor, therefore this pressure is introduced positive displacement compressor as low pressure, the effect of the pressure difference of the both sides reducing pin can also be played, be conducive to reducing the damage of pin and slide plate, be conducive to improving its life-span.
Further, by the first pilot piping or the 2nd pilot piping are connected to the position away from positive displacement compressor, reduce the integral rigidity of piping system, be conducive to the vibration of reduction system.
Accompanying drawing explanation
The Figure of description of the part forming the application is used to provide a further understanding of the present invention, and the schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention. In the accompanying drawings:
Fig. 1 shows the structural representation of the first embodiment of the coolant circulating system of the present invention;
Fig. 2 shows the structural representation of the 2nd embodiment of the coolant circulating system of the present invention;
Fig. 3 shows the structural representation of the 3rd embodiment of the coolant circulating system of the present invention.
Wherein, above-mentioned accompanying drawing comprises the following drawings mark:
1, the first pilot piping; 11, T-valve; 12, the first dotted line; 2, condenser; 3, flasher; 4, the 2nd pilot piping; 42, the 2nd dotted line; 5, vaporizer; 6, four-way valve; 71, first throttle assembly; 72, the 2nd throttling assembly; 8, compressor; 9, gas-liquid separator; 10, enthalpy tonifying Qi pipeline is increased.
Embodiment
It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually. Below with reference to the accompanying drawings and come the present invention is described in detail in conjunction with the embodiments.
Embodiment one:
Shown in figure 1, the coolant circulating system of the present embodiment comprises the positive displacement compressor 8, condenser 2, flasher 3 and the vaporizer 5 that connect successively.
Coolant circulating system is in the process of work, refrigerant after positive displacement compressor 8 compression is delivered to condenser 2, refrigerant heat release condensation in condenser 2, condensed refrigerant is delivered to the import of flasher 3, flasher 3 also has gaseous coolant outlet and 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 flasher 3 is connected with vaporizer 5, through increasing, enthalpy tonifying Qi pipeline 10 is delivered to positive displacement compressor 8 to the gaseous coolant isolated in flasher 3, the liquid refrigerants isolated in flasher 3 is delivered to vaporizer 5, in vaporizer 5, liquid refrigerants evaporates to absorb heat.
In the present embodiment, coolant circulating system also comprises the first pilot piping 1 and the 2nd pilot piping 4.
The first end of the first pilot piping 1 and the pipeline connection between condenser 2 and flasher 3, the 2nd end of the first pilot piping 1 is connected with the control refrigerant inlet of positive displacement compressor 8 with can selecting break-make. Or, the first end of the 2nd pilot piping 4 and the pipeline connection between flasher 3 and vaporizer 5, the 2nd end of the 2nd pilot piping 4 is connected with the control refrigerant inlet of positive displacement compressor 8 with can selecting break-make.
Adopting the refrigerant drawn in the pipeline between condenser 2 and flasher 3 as the high pressure controlling positive displacement compressor 8, when the first pilot piping 1 is chosen as connected state, positive displacement compressor 8 enters multi-cylinder operating mode; Or, adopt the refrigerant drawn in the pipeline between flasher 3 and vaporizer 5 as low pressure, when the 2nd pilot piping 4 is chosen as connected state, positive displacement compressor enters twin-tub operating mode.
The pressure in pipeline between condenser 2 and flasher 3, lower than the pressure in the vapor pipe of positive displacement compressor 8, utilizes this pressure as high drive pin to realize the change of positive displacement compressor working order, reduces the pressure difference of pin both sides. Owing to the pressure in the pipeline between flasher 3 and vaporizer 5 is higher than the pressure of the suction opening of positive displacement compressor 8, therefore this pressure is introduced positive displacement compressor as low pressure, the effect of the pressure difference of the both sides reducing pin can also be played, be conducive to reducing the damage of pin and slide plate, be conducive to improving its life-span.
Further, by the first pilot piping 1 or the 2nd pilot piping 4 are connected to the position away from positive displacement compressor, reduce the integral rigidity of piping system, be conducive to the vibration of reduction system.
The coolant circulating system of the present embodiment can be used for Teat pump boiler, has the equipment such as the water dispenser of refrigerating function and conditioner.
Fig. 1 shows the structural representation of the conditioner of the above-mentioned coolant circulating system of tool. Preferably, this conditioner is the conditioner with refrigeration and system heat two kinds of operating mode.
This conditioner also comprises four-way valve 6, and four ports of four-way valve 6 connect the venting port of positive displacement compressor 8, the suction opening of positive displacement compressor 8, condenser 2 and vaporizer 5 respectively.
In cooling mode, the refrigerant condensation heat release in the condenser 2 of conditioner, the refrigerant evaporation heat absorption in vaporizer 5. refrigerant after positive displacement compressor 8 compression is delivered to condenser 2 through four-way valve 6 and carries out heat exchange with heat release condensation with outside air, condensed refrigerant enters flasher 3, flasher 3 has gaseous coolant outlet and liquid refrigerants outlet, by increasing, enthalpy tonifying Qi pipeline 10 is connected with the increasing enthalpy gas supplementing opening of positive displacement compressor 8 in the gaseous coolant outlet of flasher 3, the refrigerant that the liquid refrigerants outlet of flasher 3 exports is delivered to vaporizer 5, in vaporizer 5, refrigerant evaporation absorbs heat to reduce room temp, in vaporizer 5, refrigerant after heat exchange is delivered to the suction opening of positive displacement compressor 8 through four-way valve 6.
In a heating mode, the refrigerant condensation heat release in the vaporizer 5 of conditioner, the refrigerant evaporation heat absorption in condenser 2. Refrigerant after positive displacement compressor 8 compression is delivered to vaporizer 5 through four-way valve 6, refrigerant in vaporizer 5 condensation heat release to improve room temp, refrigerant after vaporizer 5 heat exchange is delivered in condenser 2 after flasher 3, refrigerant evaporation heat absorption in condenser 2, the refrigerant after absorbing heat in condenser 22 enters the suction opening of positive displacement compressor 8 through four-way valve 6.
Shown in composition graphs 1, the first end of the first pilot piping 1 and the pipeline connection between condenser 2 and flasher 3, the 2nd end of the first pilot piping 1 is connected with the control refrigerant inlet of positive displacement compressor 8 with can selecting break-make.
The first end of the 2nd pilot piping 4 and the pipeline connection between vaporizer 5 and four-way valve 6, the 2nd end of the 2nd pilot piping 4 is connected with the control refrigerant inlet of positive displacement compressor 8 with can selecting break-make.
In cooling mode, if the first pilot piping 1 is connected with the control refrigerant inlet of positive displacement compressor 8, then the refrigerant between condenser 2 and flasher 3 is introduced the control refrigerant inlet of positive displacement compressor 8, positive displacement compressor 8 enters multi-cylinder operating mode, if the 2nd pilot piping 4 is connected with the control refrigerant inlet of positive displacement compressor 8, refrigerant between four-way valve 6 and vaporizer 5 is then introduced the control refrigerant inlet of positive displacement compressor 8, and positive displacement compressor enters twin-tub operating mode.
In cooling mode, the pressure in pipeline between condenser 2 and flasher 3 is lower than the pressure in the vapor pipe of positive displacement compressor 8, utilize this pressure as high drive pin to realize the change of positive displacement compressor working order, reduce the pressure difference of pin both sides.
In a heating mode, if the first pilot piping 1 is connected with the control refrigerant inlet of positive displacement compressor, then the refrigerant between condenser 2 and flasher 3 being introduced the control refrigerant inlet of positive displacement compressor, positive displacement compressor 8 enters twin-tub cylinder working pattern. Owing to the pressure in the pipeline between flasher 3 and condenser 2 is higher than the pressure of the suction opening of positive displacement compressor, therefore this pressure is introduced positive displacement compressor as low pressure, it is also possible to play the effect of the pressure difference of the both sides reducing pin.
Preferably, the first end being provided with first throttle assembly 71, first pilot piping 1 between condenser 2 and flasher 3 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 pilot piping 1 is connected with the pipeline between first throttle assembly 71 and flasher 3.
As shown in Figure 1, coolant circulating system also comprises T-valve 11, T-valve 11 comprises the first import, the 2nd import and outlet, first import is connected with the 2nd end of the first pilot piping 1,2nd import is connected with the 2nd end of the 2nd pilot piping 4, and the outlet of T-valve is connected with the control refrigerant inlet of positive displacement compressor.
It is provided with gas-liquid separator 9 between the outlet of T-valve 11 and the control refrigerant inlet of positive displacement compressor.
Preferably, the first pilot piping 1 and/or the 2nd pilot piping 4 can also be provided with gas-liquid separator 9.
In the present embodiment, first throttle assembly 71 is electric expansion valve, and T-valve 11 is three-way solenoid valve.
Pipeline from first throttle assembly 71 to condenser 2 (outdoor heat exchanger) or introduce pressure Pa (pipeline between first throttle assembly 71 and flasher 3), pipeline from four-way valve 6 to vaporizer 5 (indoor heat exchanger) introduces pressure P b, and control its pressure introducing positive displacement compressor 8 by three-way solenoid valve break-make, thus control is held in the change realizing positive displacement compressor 8. As shown in Figure 1, major control mode is as follows for systematic schematic diagram:
1. refrigeration mode
When being in refrigeration mode, three-way solenoid valve Pa place is high pressure, and three-way solenoid valve Pb place is low pressure, becomes according to positive displacement compressor and holds principle and T-valve principle of work (herein not detail), when
When A, three-way solenoid valve power-off, now pressure Pa introduced by compressor, and compressor is three cylinder multi-cylinder operating mode;
When B, three-way solenoid valve obtain electric, now pressure P b introduced by compressor, and compressor is two cylinder normal mode of operation.
2. heating mode
When being in heating mode, three-way solenoid valve Pa place is low pressure, and three-way solenoid valve Pb place is high pressure, holds principle and T-valve principle of work according to compressor variable, when
When A, three-way solenoid valve power-off, now pressure Pa introduced by compressor, and compressor is two cylinder normal mode of operation;
When B, three-way solenoid valve obtain electric, now pressure P b introduced by compressor, and compressor is three cylinder multi-cylinder operating mode.
The positive displacement compressor of prior art becomes appearance control mode, it is the direct air suction pipe from positive displacement compressor introducing high pressure, introduces low pressure respectively from the vapor pipe of positive displacement compressor, operation is held in the change realizing positive displacement compressor, now whole pipeline hardening, adopt the present invention's high low pressure control mode used, operation is held in the change that not only can realize compressor effectively fast, also can reduce the vibration of pipeline in operational process, reduces the stress of pipeline.
Adopt the present invention's high low pressure control mode used can reduce the pressure difference of the both sides such as slide plate, pin when multi-cylinder works on the other hand, it is to increase the compressor life-span. Positive displacement compressor pin switching pressure reduction is less, such as, only need 0.1MPa-0.5MPa, and suction and discharge pressure reduction Gao Shineng to reach 2.5MPa even higher.
In the present embodiment, according to adopting different high low pressure incorporation way, it is achieved the multiple control modes that compressor variable holds.
The technique effect of the scheme of this Shen embodiment: use the program, under the prerequisite realizing positive displacement compressor control, can effectively reduce pipeline vibration, stress, reduces compressor pressure at both sides poor, extends lifetime of system, it is to increase safe reliability.
Another aspect according to the application, the present embodiment also discloses a kind of conditioner, and this conditioner comprises above-mentioned coolant circulating system.
Embodiment two:
As shown in Figure 2, the present embodiment is from the different of embodiment one: the first end of the first pilot piping 1 and the pipeline connection between four-way valve 6 and condenser 2, and the 2nd end of the first pilot piping 1 is connected with the control refrigerant inlet of positive displacement compressor with can selecting break-make.
The first end of the 2nd pilot piping 4 and the pipeline connection between flasher 3 and vaporizer 5, the 2nd end of the 2nd pilot piping 4 is connected with the control refrigerant inlet of positive displacement compressor with can selecting break-make.
Can selection of land, the pipeline connection being provided with between the 2nd throttling first end of assembly the 72, two pilot piping 4 and the 2nd throttling assembly 72 and vaporizer 5 between flasher 3 and vaporizer 5.
Can also preferably, the pipeline connection as shown in the 2nd dotted line 42 in Fig. 2, between the first end of the 2nd pilot piping 4 and flasher 3 and the 2nd throttling assembly 72.
Coolant circulating system also comprises T-valve 11, T-valve 11 comprises the first import, the 2nd import and outlet, first import is connected with the 2nd end of the first pilot piping 1,2nd import is connected with the 2nd end of the 2nd pilot piping 4, and the outlet of T-valve is connected with the control refrigerant inlet of positive displacement compressor.
It is provided with gas-liquid separator 9 between the outlet of T-valve and the control refrigerant inlet of positive displacement compressor.
In the present embodiment, the 2nd throttling assembly 72 is electric expansion valve, and T-valve 11 is three-way solenoid valve.
Pipeline from four-way valve 6 to condenser 2 (outdoor heat exchanger) introduces pressure Pa, pressure P b is introduced from the pipeline the 2nd throttling assembly 72 to vaporizer 5 (indoor heat exchanger) or the pipeline between electric expansion valve B and flasher, and control its pressure introducing compressor by three-way solenoid valve break-make, thus control is held in the change realizing compressor. As shown in Figure 1, major control mode is as follows for systematic schematic diagram:
1. refrigeration mode
When being in refrigeration mode, three-way solenoid valve Pa place is high pressure, and three-way solenoid valve Pb place is low pressure, holds principle and T-valve principle of work (herein not detail) according to compressor variable, when
When A, three-way solenoid valve power-off, now pressure Pa introduced by compressor, and compressor is three cylinders (multi-cylinder) operating mode;
When B, three-way solenoid valve obtain electric, now pressure P b introduced by compressor, and compressor is two cylinders (common) operating mode.
2. heating mode
When being in heating mode, three-way solenoid valve Pa place is low pressure, and three-way solenoid valve Pb place is high pressure, holds principle and T-valve principle of work according to compressor variable, when
When A, three-way solenoid valve power-off, now pressure Pa introduced by compressor, and compressor is two cylinders (common) operating mode;
When B, three-way solenoid valve obtain electric, now pressure P b introduced by compressor, and compressor is three cylinders (multi-cylinder) operating mode.
Embodiment three:
As shown in Figure 3, the present embodiment is from the different of embodiment one: the first end of the first pilot piping 1 and the pipeline connection between condenser 2 and flasher 3, and the 2nd end of the first pilot piping 1 is connected with the control refrigerant inlet of positive displacement compressor 8 with can selecting break-make. The first end of the 2nd pilot piping 4 and the pipeline connection between flasher 3 and vaporizer 5, the 2nd end of the 2nd pilot piping 4 is connected with the control refrigerant inlet of positive displacement compressor 8 with can selecting break-make.
In the present embodiment, between condenser 2 and flasher 3, it is provided with first throttle assembly 71. The 2nd throttling assembly 72 it is provided with between flasher 3 and vaporizer 5.
Can selection of land, the first end of the first pilot piping 1 is connected with the pipeline between condenser 2 and first throttle assembly 71.Pipeline connection between the first end of the 2nd pilot piping 4 and the 2nd throttling assembly 72 and vaporizer 5.
Can also preferably, such as the first dotted line 12 in Fig. 3 with shown in the 2nd dotted line 42, the first end of the first pilot piping 1 is connected with the pipeline between first throttle assembly 71 and flasher 3. Pipeline connection between the first end of the 2nd pilot piping 4 and flasher 3 and the 2nd throttling assembly 72.
Coolant circulating system also comprises T-valve 11, T-valve 11 comprises the first import, the 2nd import and outlet, first import is connected with the 2nd end of the first pilot piping 1,2nd import is connected with the 2nd end of the 2nd pilot piping 4, and the outlet of T-valve is connected with the control refrigerant inlet of positive displacement compressor.
It is provided with gas-liquid separator 9 between the outlet of T-valve and the control refrigerant inlet of positive displacement compressor.
In the present embodiment, first throttle assembly 71 and the 2nd throttling assembly 72 are electric expansion valve, and T-valve 11 is three-way solenoid valve.
Pipeline from first throttle assembly 71 to condenser 2 (outdoor heat exchanger) or introduce pressure Pa the pipeline between first throttle assembly 71 and flasher 3, pressure P b is introduced from the pipeline the 2nd throttling assembly 72 to vaporizer 5 (indoor heat exchanger) or the pipeline between the 2nd throttling assembly 72 and flasher 3, and control its pressure introducing compressor by three-way solenoid valve break-make, thus control is held in the change realizing compressor. Systematic schematic diagram as shown in Figure 1, major control mode as follows described in:
1. refrigeration mode
When being in refrigeration mode, three-way solenoid valve Pa place is high pressure, and three-way solenoid valve Pb place is low pressure, holds principle and T-valve principle of work (herein not detail) according to compressor variable, when
When A, three-way solenoid valve power-off, now pressure Pa introduced by compressor, and compressor is three cylinders (multi-cylinder) operating mode;
When B, three-way solenoid valve obtain electric, now pressure P b introduced by compressor, and compressor is two cylinders (common) operating mode.
2. heating mode
When being in heating mode, three-way solenoid valve Pa place is low pressure, and three-way solenoid valve Pb place is high pressure, holds principle and T-valve principle of work according to compressor variable, when
When A, three-way solenoid valve power-off, now pressure Pa introduced by compressor, and compressor is two cylinders (common) operating mode;
When B, three-way solenoid valve obtain electric, now pressure P b introduced by compressor, and compressor is three cylinders (multi-cylinder) operating mode.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations. Within the spirit and principles in the present invention all, any amendment of doing, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (11)
1. a coolant circulating system, comprises the positive displacement compressor (8), condenser (2), flasher (3) and the vaporizer (5) that connect successively, it is characterised in that, described coolant circulating system also comprises:
First pilot piping (1), the first end of described first pilot piping (1) and the pipeline connection between described condenser (2) and described flasher (3), the 2nd end of described first pilot piping (1) is connected with the control refrigerant inlet of described positive displacement compressor (8) with can selecting break-make; And/or,
2nd pilot piping (4), the described first end of the 2nd pilot piping (4) and the pipeline connection between described flasher (3) and described vaporizer (5), described 2nd end of the 2nd pilot piping (4) is connected with the control refrigerant inlet of described positive displacement compressor (8) with can selecting break-make.
2. coolant circulating system according to claim 1, it is characterized in that, also comprise four-way valve (6), four ports of described four-way valve (6) connect the venting port of described positive displacement compressor (8), the suction opening of described positive displacement compressor (8), described condenser (2) and described vaporizer (5) respectively
The first end of described first pilot piping (1) and the pipeline connection between described condenser (2) and described flasher (3), the 2nd end of described first pilot piping (1) is connected with the control refrigerant inlet of described positive displacement compressor with can selecting break-make;
The described first end of the 2nd pilot piping (4) and the pipeline connection between described vaporizer (5) and described four-way valve (6), the 2nd end of described 2nd pilot piping (4) is connected with the control refrigerant inlet of described positive displacement compressor with can selecting break-make.
3. coolant circulating system according to claim 1 and 2, it is characterized in that, being provided with first throttle assembly (71) between described condenser (2) and described flasher (3), the first end of described first pilot piping (1) is connected with the pipeline between described condenser (2) and described first throttle assembly (71).
4. coolant circulating system according to claim 1 and 2, it is characterized in that, being provided with first throttle assembly (71) between described condenser (2) and described flasher (3), the first end of described first pilot piping (1) is connected with the pipeline between described first throttle assembly (71) and described flasher (3).
5. coolant circulating system according to claim 1, it is characterized in that, also comprise four-way valve (6), four ports of described four-way valve (6) connect the venting port of described positive displacement compressor (8), the suction opening of described positive displacement compressor (8), described condenser (2) and described vaporizer (5) respectively
The first end of described first pilot piping (1) and the pipeline connection between four-way valve (6) and condenser (2), the 2nd end of described first pilot piping (1) is connected with the control refrigerant inlet of described positive displacement compressor with can selecting break-make;
The described first end of the 2nd pilot piping (4) and the pipeline connection between flasher (3) and vaporizer (5), the 2nd end of described 2nd pilot piping (4) is connected with the control refrigerant inlet of described positive displacement compressor with can selecting break-make.
6. coolant circulating system according to claim 1 or 5, it is characterized in that, the 2nd throttling assembly (72) it is provided with, the pipeline connection between the first end of described 2nd pilot piping (4) and described flasher (3) and described 2nd throttling assembly (72) between described flasher (3) and described vaporizer (5).
7. coolant circulating system according to claim 1 or 5, it is characterized in that, the 2nd throttling assembly (72) it is provided with, the first end of described 2nd pilot piping (4) and the pipeline connection between described 2nd throttling assembly (72) and described vaporizer (5) between described flasher (3) and described vaporizer (5).
8. coolant circulating system according to claim 1, it is characterised in that, described first pilot piping (1) and/or described 2nd pilot piping (4) are provided with gas-liquid separator (9).
9. according to claim 1, 2, coolant circulating system according to any one of 5 and 8, it is characterized in that, comprise described first pilot piping (1) and described 2nd pilot piping (4), described coolant circulating system also comprises T-valve (11), described T-valve (11) comprises the first import, 2nd import and outlet, described first import is connected with the 2nd end of described first pilot piping (1), described 2nd import is connected with the 2nd end of described 2nd pilot piping (4), the outlet of described T-valve is connected with the control refrigerant inlet of described positive displacement compressor.
10. coolant circulating system according to claim 9, it is characterised in that, it is provided with gas-liquid separator (9) between the outlet of described T-valve and the control refrigerant inlet of described positive displacement compressor.
11. 1 kinds of conditioners, it is characterised in that, described conditioner comprises the coolant circulating system according to any one of claim 1 to 10.
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| CN201610164714.5A CN105650926B (en) | 2016-03-21 | 2016-03-21 | Refrigerant circulation system and air conditioner with same |
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| CN201610164714.5A CN105650926B (en) | 2016-03-21 | 2016-03-21 | Refrigerant circulation system and air conditioner with same |
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| CN105650926B CN105650926B (en) | 2018-12-07 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106885389A (en) * | 2017-03-24 | 2017-06-23 | 广东美芝精密制造有限公司 | Refrigerating plant |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103954066A (en) * | 2014-04-15 | 2014-07-30 | 珠海格力电器股份有限公司 | Refrigerating device |
| CN104534732A (en) * | 2014-12-02 | 2015-04-22 | 广东美的制冷设备有限公司 | Air conditioner |
| WO2015128122A1 (en) * | 2014-02-27 | 2015-09-03 | Siemens Aktiengesellschaft | Heat pump with storage tank |
| CN204805097U (en) * | 2015-06-19 | 2015-11-25 | 珠海格力节能环保制冷技术研究中心有限公司 | Compressor and air conditioning system |
| CN205505484U (en) * | 2016-03-21 | 2016-08-24 | 珠海格力电器股份有限公司 | Refrigerant circulation system and air conditioner with same |
-
2016
- 2016-03-21 CN CN201610164714.5A patent/CN105650926B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015128122A1 (en) * | 2014-02-27 | 2015-09-03 | Siemens Aktiengesellschaft | Heat pump with storage tank |
| CN103954066A (en) * | 2014-04-15 | 2014-07-30 | 珠海格力电器股份有限公司 | Refrigerating device |
| CN104534732A (en) * | 2014-12-02 | 2015-04-22 | 广东美的制冷设备有限公司 | Air conditioner |
| CN204805097U (en) * | 2015-06-19 | 2015-11-25 | 珠海格力节能环保制冷技术研究中心有限公司 | Compressor and air conditioning system |
| CN205505484U (en) * | 2016-03-21 | 2016-08-24 | 珠海格力电器股份有限公司 | Refrigerant circulation system and air conditioner with same |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106885389A (en) * | 2017-03-24 | 2017-06-23 | 广东美芝精密制造有限公司 | Refrigerating plant |
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| CN105650926B (en) | 2018-12-07 |
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