CN108591059A - Compression set and refrigeration system with it - Google Patents
Compression set and refrigeration system with it Download PDFInfo
- Publication number
- CN108591059A CN108591059A CN201810629255.2A CN201810629255A CN108591059A CN 108591059 A CN108591059 A CN 108591059A CN 201810629255 A CN201810629255 A CN 201810629255A CN 108591059 A CN108591059 A CN 108591059A
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- Prior art keywords
- liquid storage
- entrance
- compression
- heat exchanger
- gas
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/30—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
- F04C18/34—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members
- F04C18/356—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member
- F04C18/3566—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member the inner and outer member being in contact along more than line or surface
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/0092—Removing solid or liquid contaminants from the gas under pumping, e.g. by filtering or deposition; Purging; Scrubbing; Cleaning
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/04—Heating; Cooling; Heat insulation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/06—Silencing
- F04C29/068—Silencing the silencing means being arranged inside the pump housing
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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
Abstract
The invention discloses a kind of compression set and with its refrigeration system, the compression set includes：Compressor, the compressor includes shell, compression unit and driving portion, the shell has discharge opening, the compression unit has first entrance, second entrance and discharge opening, the discharge opening is connected to the inner space of the shell, the first entrance and the second entrance are respectively communicated with chamber spaced apart from each other in the compression unit, the driving portion is connected with the compression unit, and the driving portion drives the compression unit so that the fluid for entering the compression unit from the first entrance and the second entrance is sent to the discharge opening；Liquid storage device, the liquid storage device is interior, and there is mutually isolated the first liquid storage cylinder and the second liquid storage cylinder, first liquid storage cylinder to be connected with the first entrance, and second liquid storage cylinder is connected with the second entrance.Compression set according to the ... of the embodiment of the present invention can improve the efficiency of compression set.
Description
Technical field
This application involves technical field of heat exchange, and in particular to a kind of compression set and the refrigeration system with it.
Background technology
In the related technology, liquefied refrigerant is depressurized by expansion valve within the condenser, will produce supercooling gas-liquid separator
Liquid coolant and gas coolant.Since there are the heating capacities of overcooled liquid coolant , Kong Tone or refrigerating capacity to be promoted.
However, if gasify in gas-liquid separator it is insufficient if, liquid coolant is had in gas coolant and is mixed into.Compression
If having liquid coolant injection in machine, while delivery temperature reduces, refrigerant condensation, refrigerant are will produce in compression case body
It will be dissolved in lubricating oil, lubricating oil viscosity will be greatly reduced, therefore the sliding such as eccentric shaft component can be worn in the short time.
Invention content
The present invention is directed to solve at least some of the technical problems in related technologies.
For this purpose, a purpose of first aspect present invention embodiment is to propose a kind of higher compression set of efficiency.
One purpose of second aspect of the present invention embodiment is to propose a kind of refrigeration system, the refrigeration effect of the refrigeration system
Rate is high.
The compression set of embodiment according to a first aspect of the present invention, including：Compressor, the compressor include shell, pressure
Contracting portion and driving portion, the shell have discharge opening, and the compression unit has first entrance, second entrance and discharge opening, described
Discharge opening is connected to the inner space of the shell, and the first entrance and the second entrance are respectively communicated with phase in the compression unit
The chamber mutually separated, the driving portion are connected with the compression unit, and the driving portion drives the compression unit with will be from described
The fluid that first entrance and the second entrance enter the compression unit is sent to the discharge opening；Liquid storage device, in the liquid storage device
With mutually isolated the first liquid storage cylinder and the second liquid storage cylinder, first liquid storage cylinder is connected with the first entrance, and described
Two liquid storage cylinders are connected with the second entrance.
Compression set according to the ... of the embodiment of the present invention, liquid storage device store the stream entered from first entrance and second entrance respectively
Body can improve the efficiency of compression set.
In addition, compression set according to the above embodiment of the present invention can also have following additional technical characteristic：
According to one embodiment of present invention, the compression unit includes：First cylinder body, first cylinder body are interior by the first pressure
Shrinking structure is divided into the first suction muffler and the first compression chamber, and first suction muffler connects the first entrance, and described first
Compression chamber connects the discharge opening.
According to one embodiment of present invention, the second entrance connects first compression chamber.
According to one embodiment of present invention, the second entrance is set to the both ends of first cylinder body in the axial direction
It is periodically opened and closed on wall and by first pressure texture.
According to one embodiment of present invention, the compression unit further includes：Second cylinder body, second cylinder body are interior by second
Pressure texture is divided into the second suction muffler and the second compression chamber, and second suction muffler connects the second entrance, and described the
Two compression chambers connect the discharge opening.
According to one embodiment of present invention, the compression unit further includes：First muffler, first muffler and institute
It states the first cylinder body to be connected, and first muffler connects the inner space of first compression chamber and the shell；Second disappears
Sound device, second muffler are connected with second cylinder body, and second muffler connects second compression chamber and institute
State the inner space of shell.
According to one embodiment of present invention, the discharge capacity of second compression chamber of second cylinder body is first cylinder
The 6%-40% of the discharge capacity of first compression chamber of body.
According to one embodiment of present invention, the lower part in the liquid storage device has partition board, and the partition board is by the liquid storage
The inner space of device is divided into the first liquid storage cylinder being located above and underlying second liquid storage cylinder.
According to one embodiment of present invention, the liquid storage device further includes the first conduit and the second conduit, and described first leads
Pipe is connected to and extends downwardly with first liquid storage cylinder, and second conduit is connected to and extends downwardly with second liquid storage cylinder.
The refrigeration system of embodiment according to a second aspect of the present invention, including：Compression set, the compression set are above-mentioned
Compression set；First Heat Exchanger, one end of the First Heat Exchanger are connected with the outlet；Second heat exchanger, described second
One end of heat exchanger is connected with first liquid storage cylinder；Gas-liquid separation device, the gas-liquid separation device have first interface, the
Two interfaces and gas outlet, the first interface of the gas-liquid separator is connected with the other end of the First Heat Exchanger and second interface
It is connected with the other end of second heat exchanger, the gas outlet of the gas-liquid separator is connected with second liquid storage cylinder.
Refrigeration system according to the ... of the embodiment of the present invention, the high cooling efficiency of the refrigeration system.
According to one embodiment of present invention, the institute of the other end of the First Heat Exchanger and second heat exchanger
It states and is serially connected with throttle valve between the other end.
According to one embodiment of present invention, between the first interface of the gas-liquid separator and the First Heat Exchanger with
And it is serially connected with the throttle valve between the second interface and second heat exchanger of the gas-liquid separator.
According to one embodiment of present invention, the refrigeration system further includes：Commutation portion, the commutation portion are separately connected institute
State outlet, the First Heat Exchanger, second heat exchanger and first liquid storage cylinder, wherein the commutation portion is suitable for
Switch between the first state and a second state, wherein the commutation portion compressor, described in the first state
One heat exchanger, the gas-liquid separator, second heat exchanger and the liquid storage device are sequentially connected into circulation loop, described to change
To portion in second state compressor, second heat exchanger, the gas-liquid separator, the First Heat Exchanger with
And the liquid storage device is sequentially connected into circulation loop.
Description of the drawings
Fig. 1 is the structural schematic diagram of refrigeration system according to an embodiment of the invention；
Fig. 2 is the planar structure schematic diagram of the second cylinder body according to an embodiment of the invention；
Fig. 3 is the structural schematic diagram of liquid storage device according to an embodiment of the invention；
Fig. 4 is the structural schematic diagram of refrigeration system according to an embodiment of the invention.
Reference numeral：
Refrigeration system 1,
Compressor 121, shell 2, compression unit 6, outlet 3, second entrance 44, liquid storage device 10, the first liquid storage cylinder 20, second
Liquid storage cylinder 21, the first cylinder body 25, driving portion 9, the second cylinder body 40, spray-hole 45, the second compression chamber 25a, piston 41, the first noise reduction
Device 31a, the second muffler 32a, intercommunicating pore 35, partition board 12, the first conduit 13a, the second conduit 13b, First Heat Exchanger 100,
Two heat exchangers 110, first interface 1081, second interface 1082, gas outlet 1083, throttle valve 102, commutation portion 105, lubricating oil
22, base bearing 31, supplementary bearing 32, eccentric shaft 30, gas coolant injection pipe 103, low pressure suction line 4, middle pressure suction line 5, discharge
Mouth 46, low-pressure connection tube 14a, middle pressure connecting tube 14b.
Specific implementation mode
In the related technology, liquefied refrigerant is depressurized by expansion valve within the condenser, will produce supercooling gas-liquid separator
Liquid coolant and gas coolant.Since there are the heating capacities of overcooled liquid coolant , Kong Tone or refrigerating capacity to be promoted.
However, if gasify in gas-liquid separator it is insufficient if, liquid coolant is had in gas coolant and is mixed into.Compression
If having liquid coolant injection in machine, while delivery temperature reduces, refrigerant condensation, refrigerant are will produce in compression case body
It will be dissolved in lubricating oil, lubricating oil viscosity will be greatly reduced, therefore the sliding such as eccentric shaft component can be worn in the short time.
For this purpose, the present invention proposes a kind of compression set and the refrigeration system 1 with it.
The embodiment of the present invention is described below in detail, the example of embodiment is shown in the accompanying drawings, wherein identical from beginning to end
Or similar label indicates same or similar element or element with the same or similar functions.It is retouched below with reference to attached drawing
The embodiment stated is exemplary, it is intended to for explaining the present invention, and is not considered as limiting the invention.
1- Fig. 4 describes compression set according to the ... of the embodiment of the present invention with reference to the accompanying drawings, as shown in Fig. 1 combinations Fig. 4, the pressure
Compression apparatus substantially may include compressor 121 and liquid storage device 10.
Specifically, as shown in Figure 1 and Figure 4, compressor 121 includes shell 2, compression unit 6 and driving portion 9, shell 2 has
Discharge opening 46, compression unit 6 have first entrance, second entrance 44 and discharge opening 46, the inside that discharge opening 46 is connected to shell 2 empty
Between, first entrance and second entrance 44 are respectively communicated with chamber spaced apart from each other in compression unit 6, and driving portion 9 is connected with compression unit 6,
And driving portion 9 drives compression unit 6 so that the fluid for entering compression unit 6 from first entrance and second entrance 44 is sent to discharge opening 46.
That is, driving portion 9 drives compression unit 6 to operate, fluid enters pressure from first entrance and second entrance 44 respectively
Different chamber in contracting portion 6, compression unit 6 will enter the indoor fluid of different cavity and shell 2 are discharged by discharge opening 46, pass through later
Compressor 121 is discharged in outlet 3.
Wherein, compression unit 6 have different chamber spaced apart from each other, spaced chamber can store different pressures or
The fluid of temperature, for example, one of chamber stores low-pressure gas, another chamber stores medium pressure gas.
There is mutually isolated the first liquid storage cylinder 20 and the second liquid storage cylinder 21, the first liquid storage cylinder 20 and first in liquid storage device 10
Entrance is connected, and the second liquid storage cylinder 21 is connected with second entrance 44.
Wherein, liquid storage device 10 has 20 and second liquid storage cylinder 21 of the first liquid storage cylinder spaced apart from each other, 20 He of the first liquid storage cylinder
Second liquid storage cylinder 21 can store the fluid of different pressures, state or temperature, for example, the first liquid storage cylinder 20 can store low pressure gas
Body, the second liquid storage cylinder 21 can store medium pressure gas.
In this way, first entrance is respectively communicated with the chamber of storage low-pressure fluid in the first liquid storage cylinder 20 and compression unit 6, second enters
Mouth 44 is respectively communicated with the chamber for pressing fluid in the second liquid storage cylinder 21 and compression unit 6 in storage.
That is, the fluid in the first liquid storage cylinder 20 and the second liquid storage cylinder 21 passes through first entrance and second entrance respectively
44 flow into chamber spaced apart from each other in compression unit 6.In this way, driving portion 9 drives compression unit 6 that will enter the indoor fluid pressure of different cavity
Compressor 121 is discharged by discharge opening 46 and outlet 3 again after contracting.
Compressor 121 according to the ... of the embodiment of the present invention as a result, by the way that liquid storage device 10 is arranged, and liquid storage device 10 has mutually
The first liquid storage cylinder 20 and the second liquid storage cylinder 21 of isolation, compression unit 6 is interior to have chamber spaced apart from each other, and different chamber treatments is not
Fluid in the case of, improves the efficiency of compression set.
In some embodiments, as shown in Figure 1, compression unit 6 includes the first cylinder body, by the first pressure texture point in the first cylinder body
It is segmented into the first suction muffler and the first compression chamber, the first suction muffler connects first entrance, and the first compression chamber connects discharge opening 46.It can
With understanding, the fluid entered in the first cylinder body from first entrance initially enters the first suction muffler, into the first suction muffler
Fluid be driven into the first compression chamber under the action of compressor 121, in the first compression chamber, fluid will be compressed, pass through
Compressed fluid will be discharged from discharge opening 46.For example, the fluid for the first suction muffler being entered from first entrance is low pressure gas
Body, after overcompression, low-pressure gas becomes high pressure gas, and compressor 121 is discharged from outlet 3 in high pressure gas.
In some embodiments, as shown in Fig. 4 combinations Fig. 2, second entrance 44 connects the first compression chamber.That is, by
The fluid of second entrance 44 is directly entered the first compression chamber, does not enter the first suction muffler.In this way, entering from the first suction muffler and second
Mouth 44, which can all enter in the first compression chamber, to be compressed, and only needs a compression chamber that compression can be completed, the structure of compression set is tight
It gathers.
Further, second entrance 44 is set on the wall at the both ends of the first cylinder body in the axial direction and by the first pressure texture
Periodically opening and closing.In other words, second entrance 44 periodically opens and closes, that is to say, that the stream in the second liquid storage cylinder 21
Cognition periodically enters into the first cylinder body.
In some embodiments, compression unit 6 further includes the second cylinder body 40, is divided by the second pressure texture in the second cylinder body 40
Second suction muffler and the second compression chamber 25a, the second suction muffler connect second entrance 44, and the second compression chamber 25a connection discharge openings
46.That is, fluid enters from second entrance 44 in the second suction muffler first, under the action of compression unit 6, inhaled into second
Fluid in air cavity, which enters in the second compression chamber 25a, to be compressed, and compressor is discharged by discharge opening 46 by compressed fluid
121.In this way, entering the fluid of compression unit 6 respectively by the first compression chamber and the second compression chamber from first entrance and second entrance 44
25a compresses, and compression efficiency is higher, thus the efficiency of compression set is higher.
In some specific embodiments, the first pressure texture and the second pressure texture are coaxial.In this way, the internal junction of compression set
Structure arrangement is neat, reasonable, compact-sized.
Further, as shown in figure 4, compression unit 6 further includes the first muffler 31a and the second muffler 32a.
Wherein, the first muffler 31a is connected with the first cylinder body, and first muffler the first compression chamber of 31a connections and shell 2
Inner space.Second muffler 32a is connected with the second cylinder body 40, and second muffler 32a connections the second compression chamber 25a and shell
The inner space of body 2.
In this way, the fluid being flowed into the second compression chamber 25a of the second cylinder body 40 is discharged to the first muffler as high pressure
In 31a, being flowed into the fluid of the low pressure in the first compression chamber of the first cylinder body becomes high pressure to the first muffler 31a exhausts.The
One muffler 31a and the second muffler 32a can reduce noise, enhance product performance.
Preferably, as shown in figure 4, the second muffler 32a and the first muffler 31a are by being formed in the first cylinder body and second
Intercommunicating pore 35 in cylinder body 40 is connected to.There is intercommunicating pore 35, the second noise reduction between first muffler 31a and the second muffler 32a
It is discharged behind the high-pressure fluid interflow that the high-pressure fluid of device 32a passes through intercommunicating pore 35 and the first muffler 31a.
Certainly, above-described embodiment is only illustrative, and can not be interpreted as limiting the scope of the invention, for example,
Intercommunicating pore 35 can not also be set between Du Yi mufflers and the second muffler 32a, by the first muffler 31a and the second noise reduction
Compressor 121 is discharged each by discharge opening 46 in the gas of device 32a.
Advantageously, the discharge capacity of the second compression chamber 25a of the second cylinder body 40 is the discharge capacity of the first compression chamber of the first cylinder body
6%-40%.Wherein, the second compression chamber 25a is middle pressure chamber, and the first compression chamber is low pressure chamber, into the second compression chamber 25a
The pressure of fluid is higher, and fluid density is big, and the pressure into the fluid in the first compression chamber is relatively low, and fluid density is smaller.In this way,
It is unlikely to allow liquid storage device 10 is interior to be full of fluid, keeps compression set safer.Wherein, in order to meet above-mentioned discharge capacity condition, second presses
The volume of contracting chamber 25a could be provided as the 6%-40% of the first compression chamber volume.
In some embodiments, compression unit 6 is single cylinder pressure texture or multi-cylinder pressure texture.For example, compression unit 6 is single cylinder pressure
Shrinking structure namely compression unit 6 only have there are one compression cylinder；Compression unit 6 is multi-cylinder pressure texture namely compression unit 6 with multiple
Compression cylinder, for example, compression unit 6 tool there are two, three or more compression cylinders.
In some embodiments, as shown in figure 3, lower part in liquid storage device 10 has a partition board 12, partition board 12 is by liquid storage device 10
Inner space is divided into the first liquid storage cylinder 20 being located above and underlying second liquid storage cylinder 21.In other words, the first liquid storage
The inner space that chamber 20 and the second liquid storage cylinder 21 are separated liquid storage device 10 by partition board 12 is formed.Wherein, partition board 12 can be only set as
One, certainly, in order to ensure that heat-proof quality, partition board 12 may be set to be multiple.Wherein, the first liquid storage cylinder 20 and the second liquid storage
The volume ratio of chamber 21 is preferably 6%-40%, is full of fluid in liquid storage device 10 in this way, avoiding, keeps compression set safer.
Further, as shown in Fig. 3 combinations Fig. 4, liquid storage device 10 further includes the first conduit 13a and the second conduit 13b, and first
Conduit 13a is connected to and extends downwardly with the first liquid storage cylinder 20, and the second conduit 13b is connected to and extends downwardly with the second liquid storage cylinder 21.
First conduit 13a is connected to first entrance, and the second conduit 13b is connected to second entrance 44.In this way, the stream in the first liquid storage cylinder 20
Body imports first entrance by the first conduit 13a, and enters the first cylinder body by first entrance, and the fluid in the second liquid storage cylinder 21 is by the
Two conduit 13b import second entrance 44, and enter the second cylinder body 40 by second entrance 44.
Refrigeration system according to the ... of the embodiment of the present invention, as shown in Figure 1 and Figure 4, including compression set, First Heat Exchanger 100,
Second heat exchanger 110 and gas-liquid separation device.
Wherein, compression set is above-mentioned compression set, and one end of First Heat Exchanger 100 is connected with outlet 3, and second changes
One end of hot device 110 is connected with the first liquid storage cylinder 20.Gas-liquid separation device has first interface 1081, second interface 1082 and goes out
The first interface 1081 of gas port 1083, gas-liquid separator be connected with the other end of First Heat Exchanger 100 and second interface 1082 with
The other end of second heat exchanger 110 is connected, and the gas outlet 1083 of gas-liquid separator is connected with the second liquid storage cylinder 21.
In this way, the fluid being discharged from outlet 3 first passes around First Heat Exchanger 100, the stream after First Heat Exchanger 100
Body becomes gas-liquid two-phase fluid, and gas-liquid two-phase fluid enters gas-liquid separation device, gas-liquid two-phase fluid by first interface 1081
In a part by gas outlet 1083 enter liquid storage device 10 the second liquid storage cylinder 21 in, another part passes through second interface 1082
Gas-liquid separation device is discharged, and enters the second heat exchanger 110, the fluid after the heat exchange of the second heat exchanger 110 enters the first storage
In sap cavity 20.
Into the fluid in the first liquid storage cylinder 20 and the second liquid storage cylinder 21 respectively by first entrance and second entrance 44 into
Enter in the first cylinder body and the second cylinder body 40.Thus, it is possible to realize the cycle of fluid.
Refrigeration system according to the ... of the embodiment of the present invention, the high cooling efficiency of the refrigeration system.
In some embodiments, as shown in Figure 1 and Figure 4, the other end of First Heat Exchanger 100 and the second heat exchanger 110 it is another
Throttle valve 102 is serially connected between one end.Wherein, throttle valve 102 can be expansion valve, and expansion valve is used for fluid pressure.In this way,
Enter gas-liquid separation device after decompression for the first time by the fluid of First Heat Exchanger 100, depressurized later using second,
At this point, fluid is essentially low-pressure gaseous, low-pressure gas finally enters the first liquid storage cylinder 20.
In some alternative embodiments, as shown in Figure 1 and Figure 4, the first interface 1081 and First Heat Exchanger of gas-liquid separator
It is serially connected with throttle valve 102 between 100 and between the second interface of gas-liquid separator 1082 and the second heat exchanger 110.Namely
Throttle valve 102 is respectively arranged between First Heat Exchanger 100 and gas-liquid separation device and gas-liquid separation device and the second heat exchanger
Between 110.
Further, as shown in Figure 1 and Figure 4, refrigeration system further includes commutation portion 105, and commutation portion 105 is separately connected discharge
Mouth 3, First Heat Exchanger 100, the second heat exchanger 110 and the first liquid storage cylinder 20, wherein commutation portion 105 is suitable in first state
And second switch between state, wherein commutation portion 105 compressor 121, First Heat Exchanger 100, gas-liquid separation in first state
Device, the second heat exchanger 110 and liquid storage device 10 are sequentially connected into circulation loop, the compressor in the second state of commutation portion 105
121, the second heat exchanger 110, gas-liquid separation device, First Heat Exchanger 100 and liquid storage device 10 are sequentially connected into circulation loop.
When commutation portion 105 is in first state, the fluid in compressor 121 is discharged by outlet 3, by 3 row of outlet
A part of flow path of the fluid gone out passes through commutation portion 105, First Heat Exchanger 100, gas-liquid separation device, the second heat exchanger successively
110 and first liquid storage cylinder 20, another part flow path for the fluid being discharged by outlet 3 pass through commutation portion 105, first successively and exchange heat
Device 100, gas-liquid separation device and the second liquid storage cylinder 21.
When commutation portion 105 is in the second state, the fluid in compressor 121 is discharged by outlet 3, by 3 row of outlet
A part of flow path of the fluid gone out passes through commutation portion 105, the second heat exchanger 110, gas-liquid separation device, First Heat Exchanger successively
100 and first liquid storage cylinder 20, another part flow path for the fluid being discharged by outlet 3 pass through commutation portion 105, second successively and exchange heat
Device 110, gas-liquid separation device and the second liquid storage cylinder 21.
In this way, refrigeration system can have refrigeration and heating capacity simultaneously.
In one particular embodiment of the present invention, as shown in Figure 1, when refrigeration system is in first state, compressor 121
For single cylinder rotary compressor 121, driving portion 9 is stored in the shell 2 of sealing, driving portion 9 is electric motor, and its underpart is matched
Compression unit 6 and lubricating oil 22 are set.Compression unit 6 by shell 2 fixed first cylinder body of inner circumferential and with base bearing 31 and countershaft
Hold the equal composition of eccentric shaft 30 that 32 are slidably matched.
The pressurized gas refrigerant (pressure Pd) being discharged from discharge opening 46 passes through four-way valve (commutation portion 105) heat exchanger indoors
Become condensation refrigerant in (First Heat Exchanger 100), thereafter, is depressurized by expansion valve (throttle valve 102), in gas-liquid separation device
It is separated into the gas coolant (pressure Pi) and liquid coolant of middle pressure.Therefore, the supercooling of the liquid coolant can increase.
The liquid coolant of gas-liquid separation device is further depressurized by expansion valve, in outdoor heat exchanger (the second heat exchanger
110) become low-pressure gas refrigerant (pressure Ps), thereafter, flow into four-way valve and be divided into the liquid storage device 10 of two closed chambers
In low pressure chamber (the first liquid storage cylinder 20), reach in the first entrance being connect with the first cylinder body.
I.e. the refrigeration cycle becomes heating mode by the control of four-way valve.In addition, solid line (-) indicates that high pressure is cold in Fig. 1
The flowing of the gas coolant (Pi) of matchmaker (Pd) or middle pressure, dotted line (--) indicate the flowing of low pressure refrigerant (Ps).
On the other hand, the gas coolant separated in gas-liquid separation device is flowed into liquid storage by gas outlet 1083
The middle pressure chamber of device 10 enters the first cylinder body into the gas of middle pressure chamber from first entrance.In addition, the characteristics of gas-liquid separation device, is
With low pressure chamber and middle pressure chamber.
Fig. 2 is the plan view for indicating that the second cylinder body 40 is detailed.Second entrance 44 is opened and closed by the piston 41 of revolution, is led to
Cross gas coolant injection pipe 103 and middle pressure suction line 5 discharge gas coolant (pressure Pi).Period flows into from second entrance 44
And gas compressed mixing is from gas vent to the exhaust gas inside of shell 2.
Here, gas-liquid separation device is in the case where gas coolant is less or is led in the case that liquid coolant is excessive
Gas coolant injection pipe 103 is crossed, a large amount of liquid coolant is injected into the first compression chamber, so the gas of the first compression chamber can occur
The problem of temperature reduction.
Since the gas temperature being vented into shell 2 by gas vent is low, once the temperature of lubricating oil 22 is than condenser
Saturation condensation temperature is low, and a large amount of refrigerant can be dissolved in lubricating oil 22, will produce the phenomenon that 22 viscosity of lubricating oil extremely reduces.
As a result, the oil film between the slide unit of eccentric shaft 30 etc. cannot be formed, wear-out failure will produce.
The liquid storage device 10 in the appearance of this above problem, the present embodiment has low pressure chamber and middle pressure chamber in order to prevent.Storage
Middle partition board 12 is welded in liquid device 10, the inside of liquid storage device 10 is divided into low pressure chamber (upside) and middle pressure chamber (downside) two
Point.
Low pressure chamber carries out gas-liquid separation by evaporator (outdoor heat exchanger) to the low pressure refrigerant flowed into from low-pressure inlet pipe,
Preferential selection gas coolant, flows in the first compression chamber of the first cylinder body.If middle pressure chamber connection gas coolant injection pipe 103,
If thering is liquid coolant to be mixed into, selectively by gas coolant be flowed into in the first entrance of the first compression chamber unicom.
First conduit 13a and the second conduit 13b are L-shaped in the lower knuckle of liquid storage device 10 respectively, become low pressure connection Ei
Pipe 14a and middle pressure connecting tube 14b, they connect with low pressure suction line 4 and middle pressure suction line 5.The holes the A 16a and holes B 16b is by liquid
The hole that a part for body refrigerant is discharged in safe range avoids hydraulically full refrigerant in low pressure chamber or middle pressure chamber.It is logical
Cross experimental result confirmation, the range of the volumetric ratio of middle pressure chamber and low pressure chamber from 10% to 40% is best.
In addition, low pressure chamber and middle pressure chamber not still pressure, temperature is also different, and the gas temperature of low pressure chamber is less than middle pressure chamber
Gas temperature, the heat transfer area of middle partition board 12 is small, and relative to the gas flow of low pressure chamber, the gas flow of middle pressure chamber is about 10%
To 15%, the heat transfer between them is negligible range.In addition, if necessary, two panels can be arranged spaced
The middle partition board 12 opened, to promote thermal insulation.
In second state shown in Fig. 4, twin-tub rotation-type compressor 121 has both the first cylinder body and the second cylinder body 40, and first
Cylinder body compresses the low-pressure gas refrigerant (pressure Ps) that is flowed into from outdoor heat exchanger, dedicated second cylinder body 40 of gas injection compress from
The gas coolant that gas-liquid separation device comes out, wherein there is gas jetting hole 45, gas jetting hole 45 to pass through public affairs on the second cylinder body
The piston 41 turned is opened and closed, and gas jetting hole 45 sprays gas into the second cylinder body 40.
Compression unit 6 is by being fixed on the first cylinder body of the inner circumferential of shell 2, the second cylinder body 40 of low capacity, in connection
The compositions such as the eccentric shaft 30 that intermediate plate, base bearing 31 and supplementary bearing 32 are slidably matched.
The low pressure refrigerant (Ps) that is flowed into the low pressure chamber of liquid storage device 10 is flowed into from low pressure suction line 4 in the first cylinder body.
The middle pressure of liquid storage device 10 is flowed by gas coolant injection pipe 103 in the medium pressure refrigerant gas (Pi) that gas-liquid separation device detaches
In chamber, therefrom pressure suction line 5 is flowed into the second cylinder body 40 later.Therefore, the second cylinder body 40 is the dedicated cylinder of gas injection.
The medium pressure refrigerant gas being flowed into the compression chamber of the second cylinder body 40 is discharged to the second muffler 32a as high pressure
In.Being flowed into the gas coolant of the low pressure in the first cylinder body compression chamber becomes high pressure to the first muffler 31a exhausts.Second noise reduction
The high pressure gas of device 32a is discharged to by the high pressure gas of intercommunicating pore 35 and the first muffler 31a interflow in shell 2.Thereafter, from
Outlet 3 is to four-way valve exhaust.
In this way, the refrigeration system can free switching between the first state and a second state, for example, the of refrigeration system
One state is heating, and the second state is refrigeration, that is, refrigeration system can take into account heating and refrigeration simultaneously.
In the description of the present invention, it is to be understood that, term "center", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " be orientation based on ... shown in the drawings or
Position relationship is merely for convenience of description of the present invention and simplification of the description, and does not indicate or imply the indicated device or element must
There must be specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are used for description purposes only, it is not understood to indicate or imply relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include at least one this feature.In the description of the present invention, the meaning of " plurality " is at least two, such as two, three
It is a etc., unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；Can be that machinery connects
It connects, can also be electrical connection；It can be directly connected, can also can be indirectly connected through an intermediary in two elements
The interaction relationship of the connection in portion or two elements, unless otherwise restricted clearly.For those of ordinary skill in the art
For, the specific meanings of the above terms in the present invention can be understood according to specific conditions.
In the present invention unless specifically defined or limited otherwise, fisrt feature can be with "above" or "below" second feature
It is that the first and second features are in direct contact or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature be directly above or diagonally above the second feature, or be merely representative of
Fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be
One feature is directly under or diagonally below the second feature, or is merely representative of fisrt feature level height and is less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
It can be combined in any suitable manner in one or more embodiments or example.In addition, without conflicting with each other, the skill of this field
Art personnel can tie the feature of different embodiments or examples described in this specification and different embodiments or examples
It closes and combines.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changes, replacing and modification.
Claims (13)
1. a kind of compression set, which is characterized in that including：
Compressor, the compressor include shell, compression unit and driving portion, and the shell has outlet, the compression unit tool
There are first entrance, second entrance and discharge opening, the discharge opening to be connected to the inner space of the shell, the first entrance and institute
It states second entrance and is respectively communicated with chamber spaced apart from each other in the compression unit, the driving portion is connected with the compression unit, and institute
It states driving portion and drives the compression unit to send the fluid for entering the compression unit from the first entrance and the second entrance
Toward the discharge opening；
Liquid storage device, has mutually isolated the first liquid storage cylinder and the second liquid storage cylinder in the liquid storage device, first liquid storage cylinder with
The first entrance is connected, and second liquid storage cylinder is connected with the second entrance.
2. compression set according to claim 1, which is characterized in that the compression unit includes：
First cylinder body is divided into the first suction muffler and the first compression chamber in first cylinder body by the first pressure texture, and described the
One suction muffler connects the first entrance, and first compression chamber connects the discharge opening.
3. compression set according to claim 2, which is characterized in that the second entrance connects first compression chamber.
4. compression set according to claim 3, which is characterized in that the second entrance is set to first cylinder body along axis
It is periodically opened and closed on the wall at the both ends in line direction and by first pressure texture.
5. compression set according to claim 2, which is characterized in that the compression unit further includes：
Second cylinder body is divided into the second suction muffler and the second compression chamber in second cylinder body by the second pressure texture, and described the
Two suction mufflers connect the second entrance, and second compression chamber connects the discharge opening.
6. compression set according to claim 5, which is characterized in that the compression unit further includes：
First muffler, first muffler are connected with first cylinder body, and first muffler connection described first
The inner space of compression chamber and the shell；
Second muffler, second muffler are connected with second cylinder body, and second muffler connection described second
The inner space of compression chamber and the shell.
7. compression set according to claim 5, which is characterized in that the row of second compression chamber of second cylinder body
Amount is the 6%-40% of the discharge capacity of first compression chamber of first cylinder body.
8. according to the compression set described in any one of claim 1-7, which is characterized in that the lower part in the liquid storage device has
The inner space of the liquid storage device is divided into the first liquid storage cylinder being located above and underlying second by partition board, the partition board
Liquid storage cylinder.
9. compression set according to claim 8, which is characterized in that the liquid storage device further includes that the first conduit and second are led
Pipe, first conduit are connected to and extend downwardly with first liquid storage cylinder, and second conduit connects with second liquid storage cylinder
Lead to and extends downwardly.
10. a kind of refrigeration system, which is characterized in that including：
Compression set, the compression set are the compression set according to any one of claim 1-9；
First Heat Exchanger, one end of the First Heat Exchanger are connected with the outlet；
Second heat exchanger, one end of second heat exchanger are connected with first liquid storage cylinder；
Gas-liquid separation device, the gas-liquid separation device have first interface, second interface and gas outlet, the gas-liquid separator
First interface be connected with the other end of the First Heat Exchanger and second interface is connected with the other end of second heat exchanger,
The gas outlet of the gas-liquid separator is connected with second liquid storage cylinder.
11. refrigeration system according to claim 10, which is characterized in that the other end of the First Heat Exchanger and institute
It states and is serially connected with throttle valve between the other end of the second heat exchanger.
12. refrigeration system according to claim 11, which is characterized in that the first interface of the gas-liquid separator with it is described
It is serially connected with the section between First Heat Exchanger and between the second interface of the gas-liquid separator and second heat exchanger
Flow valve.
13. according to the refrigeration system described in any one of claim 10-12, which is characterized in that the refrigeration system further includes：
Commutation portion, the commutation portion are separately connected the outlet, the First Heat Exchanger, second heat exchanger and described
First liquid storage cylinder,
Wherein, the commutation portion is suitable for switching between the first state and a second state, wherein the commutation portion is described first
When state the compressor, the First Heat Exchanger, the gas-liquid separator, second heat exchanger and the liquid storage device according to
It is secondary to be connected to circulation loop, the commutation portion compressor, second heat exchanger, gas-liquid in second state
Separator, the First Heat Exchanger and the liquid storage device are sequentially connected into circulation loop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810629255.2A CN108591059A (en) | 2018-06-19 | 2018-06-19 | Compression set and refrigeration system with it |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810629255.2A CN108591059A (en) | 2018-06-19 | 2018-06-19 | Compression set and refrigeration system with it |
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| Publication Number | Publication Date |
|---|---|
| CN108591059A true CN108591059A (en) | 2018-09-28 |
Family
ID=63628277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810629255.2A Pending CN108591059A (en) | 2018-06-19 | 2018-06-19 | Compression set and refrigeration system with it |
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| CN (1) | CN108591059A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04209985A (en) * | 1990-12-18 | 1992-07-31 | Mitsubishi Electric Corp | Two cylinder rotary compressor |
| CN201772684U (en) * | 2010-05-24 | 2011-03-23 | 上海日立电器有限公司 | Two-stage rotor type compressor and decompression and defrosting heat pump circulation system |
| CN107859623A (en) * | 2017-10-23 | 2018-03-30 | 珠海格力节能环保制冷技术研究中心有限公司 | Compressor and refrigeration system and air conditioner |
| CN207437362U (en) * | 2017-10-23 | 2018-06-01 | 珠海格力节能环保制冷技术研究中心有限公司 | Compressor and refrigeration system and air conditioner |
| CN208281178U (en) * | 2018-06-19 | 2018-12-25 | 广东美芝制冷设备有限公司 | Compression set and refrigeration system with it |
-
2018
- 2018-06-19 CN CN201810629255.2A patent/CN108591059A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04209985A (en) * | 1990-12-18 | 1992-07-31 | Mitsubishi Electric Corp | Two cylinder rotary compressor |
| CN201772684U (en) * | 2010-05-24 | 2011-03-23 | 上海日立电器有限公司 | Two-stage rotor type compressor and decompression and defrosting heat pump circulation system |
| CN107859623A (en) * | 2017-10-23 | 2018-03-30 | 珠海格力节能环保制冷技术研究中心有限公司 | Compressor and refrigeration system and air conditioner |
| CN207437362U (en) * | 2017-10-23 | 2018-06-01 | 珠海格力节能环保制冷技术研究中心有限公司 | Compressor and refrigeration system and air conditioner |
| CN208281178U (en) * | 2018-06-19 | 2018-12-25 | 广东美芝制冷设备有限公司 | Compression set and refrigeration system with it |
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