CN108302041B - Air-conditioning system - Google Patents
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- CN108302041B CN108302041B CN201810124137.6A CN201810124137A CN108302041B CN 108302041 B CN108302041 B CN 108302041B CN 201810124137 A CN201810124137 A CN 201810124137A CN 108302041 B CN108302041 B CN 108302041B
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Abstract
The present invention provides a kind of air-conditioning system, including compressor, condenser, first throttling device, flash evaporation, second throttling device, evaporator and positive-displacement apparatus, compressor, condenser, first throttling device, flash evaporation, second throttling device and evaporator are in turn connected to form refrigerating circuit, and positive-displacement apparatus selectively switches the connection between the venthole of compressor and the low-pressure end of refrigerating circuit, high-voltage end；Positive-displacement apparatus includes the first triple valve and the second triple valve, the exhaust end of the first valve port connection compressor of the first triple valve, the air return end of the second valve port connection compressor of the first triple valve, the venthole of the third valve port connection compressor of the first triple valve；First valve port of the second triple valve is connected to flash evaporation, the air return end of the second valve port connection compressor of the second triple valve, the gas supplementing opening of the third valve port connection compressor of the second triple valve.Improve efficiency of the air-conditioning system under light industry condition.
Description
The application be on 06 09th, 2015 the applying date, be compression application No. is 201510350899.4, patent name
The divisional application of machine and air-conditioning system.
Technical field
The present invention relates to refrigerating field more particularly to a kind of air-conditioning systems.
Background technique
With the increasingly raising of national efficiency class requirement, existing Dual-level enthalpy adding compressor is solved by Gas-supplying enthalpy-increasing
The problem of low-temperature heating capacity deficiency, so that air-conditioning heating measures satisfaction, but Dual-level enthalpy adding compressor is due to there is hiigh pressure stage and low
Two cylinders of arbitrarily downgrading carry out compression for operating condition (such as the name refrigeration, nominal heating, national standard operating condition, low temperature work of heavier loads
Condition etc.) for, pressure ratio is larger, can be effectively allocated pressure ratio using Two-stage Compression, so that hiigh pressure stage cylinder and low pressure
Grade cylinder can reasonably be run；For air-conditioning system operation light load conditions (such as IPLV operating condition, intermediate operating condition etc.) and
It is low to carry out efficiency when mesolow switching realizes that single cylinder single-stage transfiguration operating can effectively solve the operation of light industry condition by displacement-variable device for speech
The problem of, but mesolow switching is affected by operating condition, may be there are problems that malfunction and be led to handover failure.
Summary of the invention
In view of the status of the prior art, the purpose of the present invention is to provide a kind of air-conditioning systems, are switched by positive-displacement apparatus
High-low pressure realizes that twin-stage and single-stage transfiguration mode stable switch, and improves efficiency of the air-conditioning system under light industry condition.On realizing
Purpose is stated, technical scheme is as follows:
A kind of air-conditioning system, including compressor, condenser, first throttling device, flash evaporation, second throttling device, evaporation
Device and positive-displacement apparatus, the compressor, condenser, first throttling device, flash evaporation, second throttling device and evaporator successively connect
It connects to form refrigerating circuit, the positive-displacement apparatus selectively switches the venthole of the compressor and the low pressure of the refrigerating circuit
Connection between end, high-voltage end；
The positive-displacement apparatus includes the first triple valve and the second triple valve, and the first valve port of first triple valve is connected to institute
The exhaust end of compressor is stated, the second valve port of first triple valve is connected to the air return end of the compressor, first threeway
The third valve port of valve is connected to the venthole of the compressor；First valve port of second triple valve is connected to the flash evaporation, institute
The second valve port for stating the second triple valve is connected to the air return end of the compressor, described in the third valve port connection of second triple valve
The gas supplementing opening of compressor.
First triple valve and second triple valve can be replaced by four-way valve in one of the embodiments, institute
State a sealing valve port of four-way valve.
The air-conditioning system has transfiguration twin-stage operational mode in one of the embodiments, transports in the transfiguration twin-stage
Under row mode, the third valve port of the first valve port of first triple valve and first triple valve is connected, second threeway
The conducting of the third valve port of first valve port of valve and second triple valve.
The air-conditioning system has transfiguration single-stage operational mode in one of the embodiments, transports in the transfiguration single-stage
Under row mode, the third valve port of the second valve port of first triple valve and first triple valve is connected, second threeway
The conducting of the third valve port of second valve port of valve and second triple valve.
The compressor includes pump assembly in one of the embodiments, and the pump assembly includes setting gradually
Hiigh pressure stage cylinder, partition, low-pressure stage cylinder, lower flange and lower cover plate, the hiigh pressure stage cylinder the first slide plate of interior setting are described low
Cylinder of arbitrarily downgrading is interior to be arranged the second slide plate, is provided with pin hole on the lower flange, the pin is placed in the pin hole, described
Pin hole is connected to the air entry of the low-pressure stage cylinder, and second slide plate is equipped with the accommodating for accommodating the head of the pin
Slot, the low-pressure stage cylinder are additionally provided with tail chamber, and it is intracavitary that the tail portion of second slide plate is placed in the tail, the low-pressure stage cylinder
Or the venthole for being connected to the tail chamber is additionally provided on the lower flange, the venthole is for introducing high pressure or low pressure and to institute
The pressure for stating the head of pin is controlled, and is controlled to realize the state of the pin.
Lower cover plate air slot is provided on the lower cover plate in one of the embodiments, is provided on the lower flange
Lower flange low pressure air slot, the lower flange low pressure air slot are connected to the air entry of the low-pressure stage cylinder, and the lower cover plate is led
Air drain is connected to the lower flange low pressure air slot and the pin hole.
Elastic reset member, institute are additionally provided between the pin and the lower cover plate in one of the embodiments,
The tail portion for stating pin has receiving portion, and one end of the elastic reset member is placed in described accommodation section, and the other end is arranged in institute
It states on lower cover plate.
In one of the embodiments, the air entry of the hiigh pressure stage cylinder include step air entry and beveling air entry,
The air entry of the hiigh pressure stage cylinder is step-like in the side close to the partition, is beveling in the side far from the partition
Mouthful.
The venthole includes air channel and at least two sections of through-holes being sequentially connected in one of the embodiments, adjacent
Two sections of through-holes arrange in L like shape, at least two sections of through-holes being sequentially connected to are arranged in series with the air channel.
The lower flange and the lower cover plate are formed for accommodating the low-pressure stage inblock cylinder in one of the embodiments,
The intermediate cavity of refrigerant out, the intermediate cavity are also communicated with increasing enthalpy component, and the pump assembly is additionally provided with the connection intermediate cavity
With the circulation passage of the hiigh pressure stage cylinder.
The circulation passage includes the first exhaust passage being arranged on the partition, sets in one of the embodiments,
The third exhaust passage setting the second exhaust channel on the low-pressure stage cylinder and being arranged on the lower flange, first exhaust
Channel, second exhaust channel and third exhaust passage are sequentially connected in series.
The beneficial effects of the present invention are:
Air-conditioning system of the invention switches the single cylinder of compressor by positive-displacement apparatus or twin-tub is run, and improves air-conditioning system
Efficiency under light industry condition has been improved particularly efficiency when Dual-level enthalpy adding compressor is run under light industry condition, has made up two-stage enthalpy increasing pressure
Efficiency defect of the contracting machine in light load, the hidden danger for being switched to single-stage transfiguration mode can not be stablized by avoiding.To compressor and change
The optimization of capacitance device, further ensures twin-stage and stablizing for single-stage transfiguration mode switches.
Detailed description of the invention
Fig. 1 is the pump assembly schematic diagram of compressor of the invention；
Fig. 2 is the decomposition diagram of one embodiment of pump assembly shown in Fig. 1；
Fig. 3 is the decomposition diagram of another embodiment of pump assembly shown in Fig. 1；
Fig. 4 is schematic diagram of the air-conditioning system of one embodiment of the invention in transfiguration twin-stage operational mode；
Fig. 5 is schematic diagram of the air-conditioning system in transfiguration single-stage operational mode shown in Fig. 4；
Fig. 6 is schematic diagram of the air-conditioning system of another embodiment of the present invention in transfiguration twin-stage operational mode；
Fig. 7 is schematic diagram of the air-conditioning system in transfiguration single-stage operational mode shown in Fig. 6.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, right with reference to the accompanying drawings and embodiments
Compressor and air-conditioning system of the invention is further elaborated.It should be appreciated that specific embodiment described herein is only
It is used to explain the present invention, is not intended to limit the present invention.
Embodiment one
Referring to figs. 1 to Fig. 3, the compressor of one embodiment of the invention, including pump assembly, pump assembly include setting gradually
Hiigh pressure stage cylinder 102, partition 103, low-pressure stage cylinder 104, lower flange 105 and lower cover plate 106.Wherein, low-pressure stage cylinder 104
As one stage of compression cylinder, hiigh pressure stage cylinder 102 is used as two-stage compression cylinder.Preferably, pump assembly further includes upper flange
101, the top of hiigh pressure stage cylinder 102 is arranged in upper flange 101.
The first slide plate 1021 of setting and the first rolling-rotor 1023 in hiigh pressure stage cylinder 102, the interior setting of low-pressure stage cylinder 104
Second slide plate 1041 and the second rolling-rotor 1044.First rolling-rotor 1023 and the second rolling-rotor 1044 are arranged in crankshaft
On 100 eccentric part.
Pin hole is provided on lower flange 105, pin 107 is placed in the pin hole, and the pin hole is connected to low-pressure stage
The air entry of cylinder 104.Second slide plate 1041 is equipped with the accommodation groove 1046 for accommodating the head of pin 107, when pin 107
When head is placed in accommodation groove 1046, the second slide plate 1041 is locked, to realize the unloading of low-pressure stage cylinder 104；Work as pin
After 107 head is detached from accommodation groove 1046, the second slide plate 1041 is unlocked, to realize the normal work of low-pressure stage cylinder 104.
Low-pressure stage cylinder 104 is additionally provided with tail chamber 1042, and the tail portion of the second slide plate 1041 is placed in tail chamber 1042.Low-pressure stage
The venthole 1043 of connection tail chamber 1042 is additionally provided on cylinder 104 or lower flange 105.By low-pressure stage cylinder 104 or under
The venthole 1043 being arranged on flange 105 controls the pressure on 107 head of pin introducing high pressure or low pressure, realizes pair
The control of 107 state of pin, and then realize single cylinder or the twin-tub operation of control compressor, solve existing double-stage compressor Dan Shuan
Grade transfiguration switching is existing to switch instability problem.
Wherein, venthole 1043 can be straight hole or inclined hole, and venthole 1043 shown in Fig. 2, Fig. 3 is respectively provided with low-pressure stage gas
On cylinder 104, venthole 1043 shown in Fig. 2 is straight hole, and venthole 1043 shown in Fig. 3 is inclined hole.Certainly, venthole 1043
It can be arranged in the same way on lower flange 105.
Venthole 1043 in Fig. 3 includes air channel and at least two sections of through-holes being sequentially connected to, and adjacent two sections are described logical
Hole is arranged in L like shape, and at least two sections of through-holes being sequentially connected to are arranged in series with the air channel.Air channel at least two sections
The combination for the through-hole being sequentially connected to, under the premise of guaranteeing cylinder constancy of volume, venthole 1043 easy to process.
Preferably, elastic reset member 108, the tail portion of pin 107 are additionally provided between pin 107 and lower cover plate 106
With receiving portion, one end of elastic reset member 108 is placed in described accommodation section, and the other end is arranged on lower cover plate 106.Elasticity
Reset element 108 can be spring or elastic slice.Elastic reset member 108 is set, convenient for the reset of pin 107.
As an embodiment, lower flange 105 and lower cover plate 106 are formed is discharged for accommodating low-pressure stage cylinder 104
The intermediate cavity of refrigerant, the intermediate cavity are also communicated with increasing enthalpy component 116, and increasing enthalpy component 116 is connected to the gas supplementing opening of compressor.The pump housing
Component is additionally provided with the circulation passage for being connected to the intermediate cavity and hiigh pressure stage cylinder 102.Preferably, the circulation passage includes setting
It sets in first exhaust passage 1031, the second exhaust channel 1045 that is arranged on low-pressure stage cylinder 104 and the setting on partition 103
Third exhaust passage 1051 on lower flange 105.First exhaust passage 1031, second exhaust channel 1045 and third exhaust are logical
Road 1051 is sequentially connected in series.
When compressor twin-tub is run, the exhaust of low-pressure stage cylinder 104 enters the intermediate cavity, and flows from increasing enthalpy component 116
The refrigerant for entering compressor gas supplementing opening mixes in intermediate cavity with the refrigerant that low-pressure stage cylinder 104 is discharged, and mixed refrigerant is by institute
State the air entry that circulation passage enters hiigh pressure stage cylinder 102.When compressor single cylinder is run, enter from the gas supplementing opening of compressor cold
Matchmaker can be directly entered the air entry of hiigh pressure stage cylinder 102.
As an embodiment, it is provided with lower cover plate air slot 1061 on lower cover plate 106, is arranged on lower flange 105
There is lower flange low pressure air slot 1052, lower flange low pressure air slot 1052 is connected to the air entry of low-pressure stage cylinder 104, and lower cover plate is led
Air drain 1061 is connected to lower flange low pressure air slot 1052 and the pin hole.So set, convenient for pin hole and low-pressure stage cylinder
The connection of 104 air entries.
Preferably, the air entry of hiigh pressure stage cylinder 102 includes step air entry and beveling air entry.Hiigh pressure stage cylinder 102
Air entry close to partition 103 side be it is step-like, far from partition 103 side be angular cut.
The compressor of above embodiments is provided with the pin hole of connection low-pressure stage cylinder air entry, low on lower flange
Cylinder of arbitrarily downgrading is equipped with tail chamber, and the tail portion of the second slide plate is placed in that tail is intracavitary, logical by what is be arranged on low-pressure stage cylinder or lower flange
Stomata controls the pressure of pin head introducing high pressure or low pressure, realizes the control to pin state, and then realize
It is unstable to solve the existing existing switching of double-stage compressor list twin-stage transfiguration switching for single cylinder or the twin-tub operation for controlling compressor
Problem.Optimization to compressor, further ensures twin-stage and stablizing for single-stage transfiguration mode switches.
Embodiment two
Within air-conditioning systems, as shown in Figures 4 to 7, air-conditioning system includes compressor to the compressor application of above embodiments
109, condenser 110, first throttling device 111, flash evaporation 112, second throttling device 113, evaporator 114 and positive-displacement apparatus,
Compressor 109, condenser 110, first throttling device 111, flash evaporation 112, second throttling device 113 and evaporator 114 are successively
Connection forms refrigerating circuit.Compressor 109 is just the compressor of any of the above-described technical solution.Preferably, first throttling device
111, second throttling device 113 is electric expansion valve or capillary.
The positive-displacement apparatus selectively switch the venthole 1043 of compressor 109 and the low-pressure end of the refrigerating circuit,
Connection between high-voltage end, i.e., the described positive-displacement apparatus can make the venthole 1043 of compressor 109 and the low pressure of the refrigerating circuit
End connection, can also be such that the venthole 1043 of compressor 109 is connected to the high-voltage end of the refrigerating circuit, but compressor 109 is logical
Stomata 1043 is not connected to simultaneously with the low-pressure end of the refrigerating circuit, high-voltage end.
Air-conditioning system switches the single cylinder of compressor by positive-displacement apparatus or twin-tub is run, and improves air-conditioning system in light industry condition
Under efficiency, be improved particularly efficiency when Dual-level enthalpy adding compressor is run under light industry condition, made up Dual-level enthalpy adding compressor light
Efficiency defect when load, the hidden danger for being switched to single-stage transfiguration mode can not be stablized by avoiding.Optimization to positive-displacement apparatus, into one
Step ensure that twin-stage and stablizing for single-stage transfiguration mode switch.
Embodiment three
As shown in Figure 4 and Figure 5, the positive-displacement apparatus of air-conditioning system includes the first valve 117, the second valve 118, third valve
119 and the 4th valve 120.First valve 117 is connected between flash evaporation 112 and the gas supplementing opening of compressor 109, the second valve
118 are connected between the air return end (at the dispenser 115 of compressor 109) of compressor 109 and the gas supplementing opening of compressor 109, the
Three valves 119 are connected between the exhaust end of compressor 109 and the venthole 1043 of compressor 109, and the 4th valve 120 is connected on
Between the gas supplementing opening of compressor 109 and the venthole 1043 of compressor 109.Preferably, the first valve 117, the second valve 118,
Third valve 119 and the 4th valve 120 are solenoid valve or motor-driven valve.
The air-conditioning system of the present embodiment has transfiguration twin-stage operational mode, as shown in Figure 2 and Figure 4, double in the transfiguration
Under grade operational mode, the first valve 117 and third valve 119 are opened, and the second valve 118 and the 4th valve 120 are turned off.System
High pressure refrigerant in cold loop is connected to via third valve 119 with the venthole 1043 of compressor 109, the tail portion of pin 107 with
The air entry of low-pressure stage cylinder 104 is connected to, and pin 107 moves downward under the action of height pressure difference, 1041 (low pressure of the second slide plate
Grade slide plate) it operates normally；It is pressed in the exhaust that low-pressure stage cylinder 104 is formed after overcompression and the tonifying Qi via the first valve 117
In be pressed in increasing enthalpy component 116 or intermediate cavity mixing after enter 102 air entry of hiigh pressure stage cylinder, hiigh pressure stage cylinder 102 compression in press
The exhaust high pressure gas formed afterwards enters compressor to exhaust pipe and is expelled in air-conditioning system, realizes transfiguration twin-stage fortune
Rotary-die type.Arrow direction in figure represents the flow direction of refrigerant.
The air-conditioning system of the present embodiment has transfiguration single-stage operational mode, as shown in Figure 3 and Figure 5, runs in transfiguration single-stage
Under mode, the first valve 117 and third valve 119 are turned off, and the second valve 118 and the 4th valve 120 are opened.Low pressure refrigerant
Gas is successively connected to via after the second valve 118 and the 4th valve 120 with the venthole 1043 of compressor 109, the tail of pin 107
Portion is connected to the air entry of low-pressure stage cylinder 104, and 107 upper and lower ends pressure of pin maintains an equal level at this time, and pin 107 is in elastic reset member
It is moved upwards under the elastic force effect of part 108, the second slide plate 1041 is locked by pin 107, and low-pressure stage cylinder 104 is unloaded；Low pressure
Cold media gas enters the air entry of hiigh pressure stage cylinder 102 via the second valve 118, is formed after 102 compression and low pressure of hiigh pressure stage cylinder
Exhaust high pressure gas enter compressor to exhaust pipe and be expelled in air-conditioning system, realize transfiguration single-stage operational mode
Formula.Arrow direction in figure represents the flow direction of refrigerant.
The positive-displacement apparatus of air-conditioning system realizes the single cylinder or twin-tub of switching compressor by the way of four electronic valves
Operation, improves efficiency of the air-conditioning system under light industry condition, when being improved particularly Dual-level enthalpy adding compressor and running under light industry condition
Efficiency makes up efficiency defect of the Dual-level enthalpy adding compressor in light load, avoids not stablizing and is switched to single-stage transfiguration mode
Hidden danger.
Example IV
As shown in Figure 6 and Figure 7, the positive-displacement apparatus of air-conditioning system includes the first triple valve 121 and the second triple valve 122.
The exhaust end of the first valve port A1 connection compressor 109 of first triple valve 121, the second valve of the first triple valve 121
The air return end (at the dispenser 115 of compressor 109) of mouth B1 connection compressor 109, the third valve port C1 of the first triple valve 121 connect
The venthole 1043 of logical compressor 109.
First valve port A2 of the second triple valve 122 is connected to flash evaporation 112, the second valve port B2 connection of the second triple valve 122
The air return end of compressor 109, the gas supplementing opening of the third valve port C2 connection compressor 109 of the second triple valve 122.
The air-conditioning system of the present embodiment has transfiguration twin-stage operational mode, as shown in Figure 2 and Figure 6, in the transfiguration twin-stage
Under operational mode, the third valve port C1 conducting of the first valve port A1 and the first triple valve 121 of the first triple valve 121, the second threeway
The third valve port C2 conducting of the first valve port A2 and the second triple valve 122 of valve 122.
High pressure refrigerant in refrigerating circuit via the first triple valve 121 the first valve port A1 and the first triple valve 121
It is connected to after three valve port C1 with the venthole 1043 of compressor 109, the tail portion of pin 107 and the air entry of low-pressure stage cylinder 104 connect
Logical, pin 107 moves downward under the action of height pressure difference, and the second slide plate 1041 (low-pressure stage slide plate) operates normally；Low-pressure stage
It is pressed in the exhaust that cylinder 104 is formed after overcompression and the first valve port A2 and the second triple valve 122 via the second triple valve 122
Third valve port C2 after tonifying Qi in be pressed in increasing enthalpy component 116 or middle chamber mixing after enter 102 air entry of hiigh pressure stage cylinder,
The exhaust high pressure gas formed after pressing in the compression of hiigh pressure stage cylinder 102 enters compressor to exhaust pipe and is expelled to air-conditioning
In system, transfiguration twin-stage operation mode is realized.Arrow direction in figure represents the flow direction of refrigerant.
The air-conditioning system of the present embodiment has transfiguration single-stage operational mode, as shown in Figure 2 and Figure 7, in the transfiguration single-stage
Under operational mode, the third valve port C1 conducting of the second valve port B1 and the first triple valve 121 of the first triple valve 121, the second threeway
The third valve port C2 conducting of the second valve port B2 and the second triple valve 122 of valve 122.
Low pressure refrigerant gas is successively via the third valve of the second valve port B1 of the first triple valve 121 and the first triple valve 121
It being connected to after mouth C1 with the venthole 1043 of compressor 109, the tail portion of pin 107 is connected to the air entry of low-pressure stage cylinder 104, this
When 107 upper and lower ends pressure of pin maintain an equal level, pin 107 moves upwards under the elastic force effect of elastic reset member 108, and second is sliding
Piece 1041 is locked by pin 107, and low-pressure stage cylinder 104 is unloaded；Low-pressure gas via the second triple valve 122 the second valve port B2
With the air entry for entering hiigh pressure stage cylinder 102 after the third valve port C2 of the second triple valve 122 from gas supplementing opening, hiigh pressure stage cylinder 102
The exhaust high pressure gas formed after compression and low pressure enters compressor to exhaust pipe and is expelled in air-conditioning system, realizes and becomes
Hold single-stage operation mode.Arrow direction in figure represents the flow direction of refrigerant.
The first triple valve 121 and the second triple valve 122 of above embodiments can be replaced by four-way valve, wherein described four
One sealing valve port of port valve can be used as triple valve use.
The positive-displacement apparatus of air-conditioning system realizes the single cylinder of switching compressor by the way of two triple valves or four-way valve
Or twin-tub operation, efficiency of the air-conditioning system under light industry condition is improved, has been improved particularly Dual-level enthalpy adding compressor under light industry condition
Efficiency when operation makes up efficiency defect of the Dual-level enthalpy adding compressor in light load, avoids not stablizing and is switched to single-stage change
The hidden danger of molar formula.
The compressor and air-conditioning system of the above various embodiments are provided with connection low-pressure stage cylinder air entry on lower flange
Pin hole is equipped with tail chamber in low-pressure stage cylinder, and it is intracavitary that the tail portion of the second slide plate is placed in tail, by low-pressure stage cylinder or lower flange
The venthole of upper setting controls the pressure of pin head introducing high pressure or low pressure, realizes the control to pin state
System, and then realize single cylinder or the twin-tub operation of control compressor, it solves existing double-stage compressor list twin-stage transfiguration switching and exists
Switching instability problem.Air-conditioning system switches the single cylinder of compressor by positive-displacement apparatus or twin-tub is run, and improves air-conditioning system
Efficiency of the system under light industry condition, has been improved particularly efficiency when Dual-level enthalpy adding compressor is run under light industry condition, has made up two-stage enthalpy increasing
Efficiency defect of the compressor in light load, the hidden danger for being switched to single-stage transfiguration mode can not be stablized by avoiding.To compressor and
The optimization of positive-displacement apparatus, further ensures twin-stage and stablizing for single-stage transfiguration mode switches.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
Limitations on the scope of the patent of the present invention therefore cannot be interpreted as.It should be pointed out that for those of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to guarantor of the invention
Protect range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (11)
1. a kind of air-conditioning system, which is characterized in that including compressor (109), condenser (110), first throttling device (111),
Flash evaporation (112), second throttling device (113), evaporator (114) and positive-displacement apparatus, the compressor (109), condenser
(110), first throttling device (111), flash evaporation (112), second throttling device (113) and evaporator (114) are sequentially connected shape
At refrigerating circuit, the venthole (1043) that the positive-displacement apparatus selectively switches the compressor (109) freezes back with described
Connection between the low-pressure end on road, high-voltage end；
The positive-displacement apparatus includes the first triple valve (121) and the second triple valve (122), and the of first triple valve (121)
One valve port A1 is connected to the exhaust end of the compressor (109), and the second valve port B1 of first triple valve (121) is connected to the pressure
The air return end of contracting machine (109), the third valve port C1 of first triple valve (121) are connected to the venthole of the compressor (109)
(1043)；First valve port A2 of second triple valve (122) is connected to the flash evaporation (112), second triple valve (122)
The second valve port B2 be connected to the air return end of the compressor (109), the third valve port C2 of second triple valve (122) is connected to institute
State the gas supplementing opening of compressor (109).
2. air-conditioning system according to claim 1, which is characterized in that first triple valve (121) and the described 2nd 3
Port valve (122) can be replaced by four-way valve, a sealing valve port of the four-way valve.
3. air-conditioning system according to claim 1, which is characterized in that there is the air-conditioning system transfiguration twin-stage to run mould
Formula, under the transfiguration twin-stage operational mode, the first valve port A1 and first triple valve of first triple valve (121)
(121) third valve port C1 conducting, the first valve port A2 of second triple valve (122) and second triple valve (122)
Third valve port C2 conducting.
4. air-conditioning system according to claim 1, which is characterized in that there is the air-conditioning system transfiguration single-stage to run mould
Formula, under the transfiguration single-stage operational mode, the second valve port B1 and first triple valve of first triple valve (121)
(121) third valve port C1 conducting, the second valve port B2 of second triple valve (122) and second triple valve (122)
Third valve port C2 conducting.
5. air-conditioning system according to claim 1, which is characterized in that the compressor includes pump assembly, the pump housing
Component includes the upper flange (101) set gradually, hiigh pressure stage cylinder (102), partition (103), low-pressure stage cylinder (104), laxative remedy
Blue (105) and lower cover plate (106), the hiigh pressure stage cylinder (102) is interior to be arranged the first slide plate (1021), the low-pressure stage cylinder
(104) the second slide plate (1041) are set in, are provided with pin hole on the lower flange (105), pin (107) is placed in the pin
In hole, the pin hole is connected to the air entry of the low-pressure stage cylinder (104), and second slide plate (1041) is equipped with for accommodating
The accommodation groove (1046) on the head of the pin (107), the low-pressure stage cylinder (104) is additionally provided with tail chamber (1042), described
The tail portion of second slide plate (1041) is placed in the tail chamber (1042), the low-pressure stage cylinder (104) or the lower flange (105)
On be additionally provided with the venthole (1043) for being connected to the tail chamber (1042), the venthole (1043) is for introducing high pressure or low pressure
And the pressure on the head of the pin (107) is controlled, the state of the pin (107) is controlled to realize.
6. air-conditioning system according to claim 5, which is characterized in that be provided with lower cover plate on the lower cover plate (106) and lead
Air drain (1061) is provided with lower flange low pressure air slot (1052), the lower flange low pressure air slot on the lower flange (105)
(1052) it is connected to the air entry of the low-pressure stage cylinder (104), it is low that the lower cover plate air slot (1061) is connected to the lower flange
Press air slot (1052) and the pin hole.
7. air-conditioning system according to claim 5, which is characterized in that in the pin (107) and the lower cover plate (106)
Between be additionally provided with elastic reset member (108), the tail portion of the pin (107) has receiving portion, the elastic reset member
(108) one end is placed in described accommodation section, and the other end is arranged on the lower cover plate (106).
8. air-conditioning system according to claim 5, which is characterized in that the air entry of the hiigh pressure stage cylinder (102) includes
Step air entry and beveling air entry, the air entry of the hiigh pressure stage cylinder (102) are in the side close to the partition (103)
It is step-like, it is angular cut in the side far from the partition (103).
9. according to the described in any item air-conditioning systems of claim 5-8, which is characterized in that the venthole (1043) includes ventilation
Slot is arranged at least two sections of through-holes being sequentially connected to, two sections of adjacent through-holes in L like shape, and described at least two sections are sequentially connected to
Through-hole be arranged in series with the air channel.
10. according to the described in any item air-conditioning systems of claim 5-8, which is characterized in that the lower flange (105) and it is described under
Cover board (106) forms the intermediate cavity for accommodating low-pressure stage cylinder (104) the discharge refrigerant, and the intermediate cavity is also communicated with increasing
Enthalpy component (116), the pump assembly is additionally provided with the connection intermediate cavity and the circulation of the hiigh pressure stage cylinder (102) is logical
Road.
11. air-conditioning system according to claim 10, which is characterized in that the circulation passage includes being arranged in the partition
(103) first exhaust passage (1031) on, the second exhaust channel (1045) being arranged on the low-pressure stage cylinder (104) and
The third exhaust passage (1051) being arranged on the lower flange (105), first exhaust passage (1031), second exhaust channel
(1045) it is sequentially connected in series with third exhaust passage (1051).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810124137.6A CN108302041B (en) | 2015-06-19 | 2015-06-19 | Air-conditioning system |
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| CN201810124137.6A CN108302041B (en) | 2015-06-19 | 2015-06-19 | Air-conditioning system |
| CN201510350899.4A CN106321433B (en) | 2015-06-19 | 2015-06-19 | Air-conditioning system |
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| CN107816816B (en) * | 2017-11-24 | 2023-05-26 | 安徽美芝精密制造有限公司 | Refrigerating device |
| CN109236651B (en) * | 2018-10-11 | 2020-03-27 | 珠海格力电器股份有限公司 | Variable-capacity compressor and air conditioning system thereof |
| TWI678868B (en) * | 2018-12-05 | 2019-12-01 | 東元電機股份有限公司 | Rotor with pressure differential generating assembly |
| CN111075721B (en) * | 2019-12-26 | 2021-11-19 | 珠海格力节能环保制冷技术研究中心有限公司 | Pump body subassembly and variable volume compressor |
| CN111622950B (en) * | 2020-05-22 | 2022-05-31 | 珠海格力节能环保制冷技术研究中心有限公司 | Compressor, control method thereof and air conditioner |
| CN112628142A (en) * | 2020-11-16 | 2021-04-09 | 珠海格力节能环保制冷技术研究中心有限公司 | Compressor, air conditioner and control method thereof |
| CN113982926A (en) * | 2021-10-19 | 2022-01-28 | 珠海格力节能环保制冷技术研究中心有限公司 | Single-stage and double-stage switching compressor, air conditioning system and control method |
| CN114198304B (en) * | 2021-12-10 | 2022-11-01 | 珠海格力电器股份有限公司 | Double-cylinder variable-capacity compressor and air conditioning system |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN108302041A (en) | 2018-07-20 |
| CN106321433B (en) | 2018-10-02 |
| CN106321433A (en) | 2017-01-11 |
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