CN207146975U - Heat recovery multi-split air conditioning system - Google Patents
Heat recovery multi-split air conditioning system Download PDFInfo
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- CN207146975U CN207146975U CN201721163116.2U CN201721163116U CN207146975U CN 207146975 U CN207146975 U CN 207146975U CN 201721163116 U CN201721163116 U CN 201721163116U CN 207146975 U CN207146975 U CN 207146975U
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 36
- 238000011084 recovery Methods 0.000 title abstract description 3
- 239000007788 liquid Substances 0.000 claims abstract description 62
- 238000010438 heat treatment Methods 0.000 abstract description 33
- 238000005057 refrigeration Methods 0.000 abstract description 23
- 239000003507 refrigerant Substances 0.000 description 26
- 230000001276 controlling effect Effects 0.000 description 13
- 238000001816 cooling Methods 0.000 description 12
- 238000010792 warming Methods 0.000 description 11
- 239000002826 coolant Substances 0.000 description 10
- 230000005611 electricity Effects 0.000 description 5
- 238000000926 separation method Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 4
- 238000001704 evaporation Methods 0.000 description 3
- 230000008020 evaporation Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004781 supercooling Methods 0.000 description 1
- 210000004243 sweat Anatomy 0.000 description 1
- 210000005239 tubule Anatomy 0.000 description 1
- 238000010977 unit operation Methods 0.000 description 1
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- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
The utility model relates to a heat recovery multi-split air conditioning system, which comprises a compressor, a first four-way valve, a second four-way valve, a first heat exchanger, a second heat exchanger, a high-pressure air pipe, a low-pressure air pipe and a liquid pipe; the exhaust end of the compressor is connected with a first four-way valve, a second four-way valve and a high-pressure air pipe in parallel; the high-pressure air pipe is provided with a third valve for controlling the on-off of the flow path; the first end of the first heat exchanger is connected with a first four-way valve, the first end of the second heat exchanger is connected with a second four-way valve, and the second end of the first heat exchanger and the second end of the second heat exchanger are both connected with liquid pipes; a pipeline connecting the second end of the first heat exchanger with the liquid pipe is provided with a first valve for controlling the on-off and flow of the flow path, and a pipeline connecting the second end of the second heat exchanger with the liquid pipe is provided with a second valve for controlling the on-off and flow of the flow path; the low-pressure air pipe, the first four-way valve and the second four-way valve are all connected with the air inlet end of the compressor. The utility model discloses can realize refrigeration mode alone, heat the mode alone and refrigerate the mode of heating simultaneously.
Description
Technical field
It the utility model is related to air-conditioning system field, more particularly to a kind of heat-reclamation multi-compressors air-conditioning system.
Background technology
Conventional heat pump multiple on-line system can only meet separate refrigeration and independent heat-production functions, it is impossible to meet cooling and warming simultaneously
Function, but for some areas because the weather temperature difference is larger, often same set of system need to have can freeze simultaneously and
Heat-production functions.
Utility model content
The purpose of this utility model is to propose a kind of heat-reclamation multi-compressors air-conditioning system, its can solve the problem that same set of system without
Method meets the problem of refrigeration simultaneously and heating needs.
To achieve the above object, the utility model provides a kind of heat-reclamation multi-compressors air-conditioning system, it include compressor,
First four-way valve, the second four-way valve, First Heat Exchanger, the second heat exchanger, high-pressure air pipe, low pressure gas pipe and liquid pipe；
The exhaust end of the compressor is connected in parallel first four-way valve, second four-way valve and the high pressure gas
Pipe；
The high-pressure air pipe is provided with the 3rd valve for being used for controlling stream break-make；
The first end of the First Heat Exchanger connects first four-way valve, the first end connection institute of second heat exchanger
State the second four-way valve, the second end of the second end of the First Heat Exchanger and second heat exchanger is all connected with the liquid pipe；Institute
State the second end of First Heat Exchanger and pipeline that the liquid pipe is connected be provided with the first valve for being used for controlling stream break-make and flow,
The pipeline that second end of second heat exchanger is connected with the liquid pipe is provided with the second valve for being used for controlling stream break-make and flow；
The low pressure gas pipe, first four-way valve and second four-way valve are all connected with the inlet end of the compressor.
One preferably or in alternative embodiment, first valve and second valve include magnetic valve, and the liquid pipe is set
There is electric expansion valve.
One preferably or in alternative embodiment, first valve and second valve include electric expansion valve.
One preferably or in alternative embodiment, the liquid pipe is provided with subcooler.
One preferably or in alternative embodiment, the liquid pipe connects tie point, and the tie point is sequentially connected described
Subcooler and the compressor.
One preferably or in alternative embodiment, the tie point is provided with electric expansion valve.
One preferably or alternative embodiment in, the high-pressure air pipe by the second branch road connect low pressure gas pipe, described second
Branch road is provided with the 4th valve for being used for controlling stream break-make.
One preferably or in alternative embodiment, second branch road is provided with capillary.
One preferably or in alternative embodiment, the inlet end of the compressor is provided with gas-liquid separator.
One preferably or in alternative embodiment, the exhaust end of the compressor is provided with oil eliminator.
One preferably or in alternative embodiment, the oil eliminator connects the air inlet of the compressor by the 3rd branch road
End, the 3rd branch road are provided with the 5th valve for being used for controlling stream break-make.
One preferably or in alternative embodiment, the 3rd branch road is provided with capillary.
One preferably or in alternative embodiment, first four-way valve connects the exhaust of the compressor by the 4th branch road
End, second four-way valve connect the exhaust end of the compressor by the 5th branch road, the 4th branch road and described 5th
Road is equipped with capillary.
One preferably or in alternative embodiment, the both ends of the 3rd valve are also connected with the both ends of the 6th branch road, and the described 6th
Branch road is provided with capillary.
One preferably or in alternative embodiment, the high-pressure air pipe, liquid pipe and low pressure gas pipe are equipped with stop valve.
Based on above-mentioned technical proposal, the utility model at least has the advantages that：
The heat-reclamation multi-compressors air-conditioning system that the utility model embodiment provides includes compressor, the first four-way valve, second
Four-way valve, First Heat Exchanger, the second heat exchanger, high-pressure air pipe, low pressure gas pipe and liquid pipe, high-pressure air pipe, which is provided with, to be used to control stream
3rd valve of break-make, the pipeline that the second end of First Heat Exchanger is connected with liquid pipe, which is provided with, is used to controlling stream break-make and flow
First valve, the pipeline that the second end of the second heat exchanger is connected with liquid pipe are provided with the second valve for being used for controlling stream break-make and flow,
By controlling the break-make of the first valve, the second valve, the 3rd valve, commutated with reference to the electric dead electricity that obtains of the first four-way valve and the second four-way valve,
Separate refrigeration pattern, independent heating mode and cooling and warming pattern simultaneously can be realized, meets that user has to same set of system
The demand of refrigeration and heat-production functions simultaneously.
Brief description of the drawings
Accompanying drawing described herein is used for providing further understanding to of the present utility model, forms the part of the application,
Schematic description and description of the present utility model is used to explain the utility model, does not form to of the present utility model improper
Limit.In the accompanying drawings：
Fig. 1 is the first embodiment schematic diagram of heat-reclamation multi-compressors air-conditioning system provided by the utility model；
Fig. 2 is the second embodiment schematic diagram of heat-reclamation multi-compressors air-conditioning system provided by the utility model.
Label in accompanying drawing：
1- compressors；The four-way valves of 2- first；The four-way valves of 3- second；4- First Heat Exchangers；The heat exchangers of 5- second；6- high pressure gas
Pipe；7- low pressure gas pipes；8- liquid pipes；The valves of 9- the 3rd；The valves of 10- first；The valves of 11- second；12- subcoolers；13- gas-liquid separators；14-
Oil eliminator；The valves of 15- the 4th；The valves of 16- the 5th；17- electric expansion valves.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in embodiment is carried out clear, complete
Ground describes.Obviously, described embodiment is only part of the embodiment of the present utility model, rather than whole embodiments.
Based on embodiment of the present utility model, institute that those of ordinary skill in the art are obtained under the premise of creative work is not made
There is other embodiment, belong to the scope of the utility model protection.
In description of the present utility model, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", "front", "rear",
The orientation or position relationship of the instruction such as "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer " is based on accompanying drawing institutes
The orientation or position relationship shown, it is for only for ease of description the utility model and simplifies description, rather than indicates or imply and be signified
Device or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to this practicality
The limitation of novel protected scope.
The technical term used in the utility model embodiment is explained first.
Compressor：Refrigerant circulation power is provided, by low-temp low-pressure gaseous coolant boil down to high pressure gaseous refrigerant.
Heat exchanger：During refrigeration, outdoor heat exchanger condenses to HTHP refrigerant, and during heating, outdoor heat exchanger is to low
Warm low pressure refrigerant is evaporated.
Electric expansion valve：Control cold medium flux.
Subcooler：Heat exchanger, increase degree of supercooling.
Oil eliminator：The compressor and freeze oil carried in separation circulating refrigerant, and return in compressor, ensure compression captain
Phase operational reliability.
Gas-liquid separator：The liquid refrigerants in gaseous coolant is separated, reduces back liquid.
Four-way valve：Refrigeration, heating time control refrigeration matchmaker's flow direction.
Stop valve：End tracheae/liquid pipe.
Filter：Impurity in filtration system.
Capillary：Flow is controlled, avoids refrigerant dead band, reduces noise etc..
As shown in Figure 1 and Figure 2, the heat-reclamation multi-compressors air-conditioning system provided for the utility model embodiment, it is specially that heat is returned
The outdoor machine part of multi-online air-conditioning system is received, it includes compressor 1, the first four-way valve 2, the second four-way valve 3, First Heat Exchanger
4th, the second heat exchanger 5, high-pressure air pipe 6, low pressure gas pipe 7 and liquid pipe 8；
The exhaust end of compressor 1 is connected in parallel the first four-way valve 2, the second four-way valve 3 and high-pressure air pipe 6, high-pressure air pipe 6 and set
There is the 3rd valve 9 for controlling stream road break-make；
The first end of First Heat Exchanger 4 connects the first four-way valve 2, and the first end of the second heat exchanger 5 connects the second four-way valve
3, the second end of the second end of First Heat Exchanger 4 and the second heat exchanger 5 is all connected with liquid pipe 8；Second end of First Heat Exchanger 4 and liquid
The pipeline that pipe 8 connects is provided with the first valve 10 for being used for controlling stream break-make and flow, the second end of the second heat exchanger 5 and liquid pipe
The pipeline of 8 connections is provided with the second valve 11 for being used for controlling stream break-make and flow；
Low pressure gas pipe 7, the first four-way valve 2 and the second four-way valve 3 are all connected with the inlet end of compressor 1.
The first four-way valve 2 and the second four-way valve 3 in above-described embodiment include first interface D, second interface S, the 3rd
Interface E and the 4th interface C.Wherein, when four-way valve power down, first interface D connects with the 4th interface C, corresponding, second interface
S connects with the 3rd interface E.When four-way valve obtains it is electric when, first interface D connects with the 3rd interface E, corresponding, second interface S and
Four interface C are connected.
The exhaust end of the first interface D connection compressors 1 of four-way valve in above-described embodiment, second interface S connection compressions
The inlet end of machine 1, the 4th interface C connection heat exchangers, the 3rd interface E connect the inlet end of compressor 1 by branch road, and the branch road is set
There is capillary, the refrigerant of compressor 1 can pass through four-way valve DE paths, capillary returns compressor 1, by capillary equivalent to the branch
Road is closed, and capillarity is to ensure less flow, ensures the reliability of four-way valve.
The utility model embodiment by control the first valve 10, the second valve 11, the 3rd valve 9 break-make, with reference to the first four-way
The commutation for obtaining electric dead electricity of the four-way valve 3 of valve 2 and second, can realize that same heat-reclamation multi-compressors air-conditioning system has separate refrigeration
Pattern, independent heating mode and cooling and warming pattern simultaneously.Wherein, separate refrigeration pattern can include the He of First Heat Exchanger 4 again
Second heat exchanger, 5 whole refrigeration modes and part refrigeration mode；Independent heating mode can include First Heat Exchanger 4 and second again
5 whole heating modes of heat exchanger and part heating mode；Cooling and warming pattern can include refrigerating capacity and heating capacity phase again simultaneously
When pattern, refrigerating capacity be more than heating capacity pattern and heating capacity be more than refrigerating capacity pattern.
The first valve 10 and the second valve 11 in above-described embodiment can at least have following two embodiments.
First embodiment：As shown in figure 1, the first valve 10 can include the first magnetic valve, the second valve 11 includes the second electromagnetism
Valve, liquid pipe 8 are provided with electric expansion valve.The electronics that second end of First Heat Exchanger 4 is sequentially connected on the first magnetic valve and liquid pipe 8 is swollen
Swollen valve, the second end of the second heat exchanger 5 are sequentially connected the electric expansion valve in second solenoid valve and liquid pipe 8.
Above-mentioned first embodiment, it is simpler during control by using solenoid valve control stream break-make, and cost it is low, can
By property height；The heat exchanger 5 of First Heat Exchanger 4 and second shares same electric expansion valve and carries out Flow-rate adjustment.
Second embodiment：As shown in Fig. 2 the first valve 10 can include the first electric expansion valve, the second valve 11 can include
Second electric expansion valve.Second end of First Heat Exchanger 4 is sequentially connected the first electric expansion valve and liquid pipe 8, the second heat exchanger 5
Second end is sequentially connected the second electric expansion valve and liquid pipe 8.
Above-mentioned second embodiment, the heat exchanger 5 of First Heat Exchanger 4 and second carry out flow tune using an electric expansion valve respectively
Section and control stream break-make, can make control more accurate.
In above-mentioned first embodiment and second embodiment, the pipeline between the valve 10 of First Heat Exchanger 4 and first can also be set
There is filter.Pipeline between second heat exchanger 5 and the second valve 11 is also provided with filter.
The 3rd valve 9 in above-described embodiment can include magnetic valve, and the stream using solenoid valve control high-pressure air pipe 6 leads to
Disconnected, control is simple, more reliable, and service life length, easy to maintenance, noise is small, and space is saved in structure.
The heat-reclamation multi-compressors air-conditioning system that the utility model embodiment provides, liquid pipe 8 can be provided with subcooler 12, and first
Second end of heat exchanger 4 connects liquid pipe 8 after connecting subcooler 12 commonly through pipeline with the second end of the second heat exchanger 5.
In above-described embodiment, liquid pipe 8 can connect the first end of tie point, and the second end of tie point was sequentially connected
The inlet end of cooler 12 and compressor 1.
In above-described embodiment, tie point can be provided with electric expansion valve 17, and the refrigerant in liquid pipe 8 first passes through electronic expansion
Valve 17, after compressor 1 returned by subcooler 12.
In above-described embodiment, liquid pipe 8 can be provided with filter.
The heat-reclamation multi-compressors air-conditioning system that the utility model embodiment provides, the inlet end of compressor 1 can be provided with gas
Liquid/gas separator 13.
Second end of First Heat Exchanger 4 connects the first of subcooler 12 with the second end of the second heat exchanger 5 by pipeline
End, the second end connection liquid pipe 8 of subcooler 12, liquid pipe 8 also connect tie point, tie point connection electric expansion valve 17, mistake
Cooler 12, gas-liquid separator 13, last gas-liquid separator 13 connect compressor 1.The effect of subcooler 12 is exactly to increase system mistake
Cold degree, performance when improving unit refrigeration；Part refrigerant passes through the evaporation endothermic of subcooler 12, becomes gaseous coolant, subsequently into gas
Liquid/gas separator 13, eventually pass back to compressor 1.
The heat-reclamation multi-compressors air-conditioning system that the utility model embodiment provides, high-pressure air pipe 6 can pass through the second branch road
Low pressure gas pipe 7 is connected, the second branch road can be provided with the 4th valve 15 for being used for controlling stream break-make.
In above-described embodiment, the second branch road can be provided with capillary.
It is closed during the 4th 15 normal operation of valve.When unit switching on and shutting down, either system high pressure is too high or system
Low pressure is too low, or when complete machine has indoor set type cooling and warming pattern switching, the 4th valve 15 is opened；It is motor-driven that complete machine completes switch
Make, either high and low pressure recovers normally or after indoor set completion cooling and warming pattern switching, and the 4th valve 15 recovers to close.Second
Branch road is used to balance high-low pressure, improves unit starting, shutdown, pattern switching efficiency.
In above-described embodiment, the 4th valve 15 can include magnetic valve.
The heat-reclamation multi-compressors air-conditioning system that the utility model embodiment provides, the exhaust end of compressor 1 can be provided with oil
Separator 14.
In above-described embodiment, oil eliminator 14 connects the inlet end of compressor 1 by the 3rd branch road, and the 3rd branch road, which is provided with, to be used
In the 5th valve 16 of control stream break-make.The 5th valve 16 between compressor 1 and oil eliminator 14 maintains a normally open, during compressor emergency shutdown
Close.The effect of 3rd branch road is oil return, ensures the reliability of compressor 1.
In above-described embodiment, the 3rd branch road can be provided with capillary.
In above-described embodiment, the 5th valve 16 can include magnetic valve.
The heat-reclamation multi-compressors air-conditioning system that the utility model embodiment provides, the first four-way valve 2 are connected by the 4th branch road
The exhaust end of logical compressor 1, the second four-way valve 3 connect the exhaust end of compressor 1 by the 5th branch road, the 4th branch road and the 5th
Road is equipped with capillary.
In above-described embodiment, the both ends of the 3rd valve 9 can also connect the both ends of the 6th branch road, and the 6th branch road can be provided with hair
Tubule.The parallel capillary tube of 3rd valve 9, it is used to bypass when the 3rd valve 9 is normally closed, prevents pipeline dead band.
The heat-reclamation multi-compressors air-conditioning system that the utility model embodiment provides, high-pressure air pipe 6, liquid pipe 8 and low pressure gas pipe 7
It is equipped with stop valve.Stop valve, which is used to produce, to be installed, without relevant control.
Below by taking the embodiment of the heat-reclamation multi-compressors air-conditioning system shown in Fig. 1 as an example, heat-reclamation multi-compressors are described in detail
The mode of operation of air-conditioning system.
Separate refrigeration pattern：Separate refrigeration pattern includes heat exchanger whole refrigeration mode and heat exchanger section refrigeration mode.
Heat exchanger whole refrigeration mode：When the complete refrigerating operaton of unit, the first four-way valve 2 and the second four-way valve 3 fall
Electricity, the 3rd valve 9 are closed, and the first valve 10 and the second valve 11 are opened.Now high pressure gaseous refrigerant comes out from the exhaust of compressor 1,
Oil-gas Separation is carried out by oil eliminator 14, then it is cold into liquid by First Heat Exchanger 4 and the second heat exchanger 5 progress condensing heat-exchange
Matchmaker, liquid refrigerants are subcooled by subcooler 12, then are recycled to indoor set by liquid pipe 8 and are carried out throttling and evaporation refrigeration, evaporation
Low-temp low-pressure gaseous coolant afterwards is recycled in compressor 1 and re-compressed by low pressure gas pipe 7, gas-liquid separator 13, so
Circulation.
Heat exchanger section refrigeration mode：When unit refrigerating part load operation, then outdoor heat exchanger is without being all used for
Heat exchange, the first four-way valve 2 (or second four-way valve 3) is now controlled to obtain electric, the 3rd valve 9 remains turned-off.Simultaneously the first valve 10 (or
The valve 11 of person second) close, now quite only carry out condensing heat-exchange with the second heat exchanger 5 (or First Heat Exchanger 4).
For sub-load, if detecting system refrigerant is on the high side, the first four-way valve 2 (or the second four-way can be controlled
Valve 3) power down, the first valve 10 (or second valve 11) close, now can with First Heat Exchanger 4 (or second heat exchanger 5) come
Store refrigerant.So control can optimize lifting unit comfortableness and reliability.
Independent heating mode：Independent heating mode includes heat exchanger whole heating mode and heat exchanger section heating mode.
Heat exchanger whole heating mode：When the complete heating operation of unit, the first four-way valve 2 and the second four-way valve 3 obtain
Electricity, the 3rd valve 9 are opened, and the first valve 10 and the second valve 11 are opened.Now high pressure gaseous refrigerant comes out from the exhaust of compressor 1,
Oil-gas Separation is carried out by oil eliminator 14, then is recycled to indoor set by the 3rd valve 9, high-pressure air pipe 6 and carries out condensing heating, it is cold
Refrigerant is recycled to outdoor by liquid pipe 8 after solidifying, successively by subcooler 12, electric expansion valve reducing pressure by regulating flow, First Heat Exchanger 4
Evaporated with the second heat exchanger 5, be changed into low-temp low-pressure gaseous coolant again by gas-liquid separator 13, be finally recirculated to compressor
In 1, so circulation.
Heat exchanger section heating mode：When unit heats operation at part load, then outdoor heat exchanger is without being all used for
Heat exchange, now control the first four-way valve 2 and the second four-way valve 3 it is electric, the 3rd valve 9 is opened, while the first valve 10 (or second
Valve 11) close, now quite only it is evaporated heat exchange with the second heat exchanger 5 (or First Heat Exchanger 4).
For sub-load, if detecting system refrigerant is on the high side, the first four-way valve 2 (or the second four-way can be controlled
Valve 3) power down, the closing of the first valve 10 (or second valve 11).Now can with First Heat Exchanger 4 (or second heat exchanger 5) come
Store refrigerant.So control can optimize lifting unit comfortableness and reliability.
Heat recovery mode, i.e., simultaneously cooling and warming pattern：Cooling and warming pattern includes refrigerating capacity simultaneously and heating capacity is suitable
Pattern, refrigerating capacity be more than heating capacity pattern and heating capacity be more than refrigerating capacity pattern.
Refrigerating capacity and the suitable pattern of heating capacity：When unit cooling and warming operation simultaneously and refrigerating capacity and heating capacity phase
At that time, then the first four-way valve 2 and the second four-way valve 3 must be electric, and the 3rd valve 9 is opened, and the first valve 10 and the second valve 11 are closed.High temperature is high
Pressure gaseous coolant is come out from the exhaust of compressor 1, and Oil-gas Separation is carried out by oil eliminator 14, then by the 3rd valve 9, high-pressure air pipe
6, which are recycled to the indoor set for needing to heat, carries out condensing heating, and condensed liquid refrigerants carries out what reducing pressure by regulating flow freezed to needs
Indoor set is evaporated refrigeration, and last low-temp low-pressure gaseous coolant is recycled to outdoor unit by low pressure gas pipe 7.Now outdoor unit changes
Hot device is without heat exchange.
Refrigerating capacity is more than the pattern of heating capacity：When unit cooling and warming operation, but refrigerating capacity is more than heating capacity simultaneously
When, then outdoor unit heat exchanger uses as condenser；Outdoor unit heat exchanger is as condenser in use, can pass through corresponding four-way
Valve and the valve of control stream break-make are controlled, and the heat exchanger 5 of First Heat Exchanger 4 or second, or heat exchanger are used with control
All use.
Such as：First Heat Exchanger 4 is as condenser in use, the first four-way valve 2 of the corresponding First Heat Exchanger 4 of control falls
Electricity, the first valve 10 are opened, and the 3rd valve 9 is opened.I.e. except heat exchanger freezes, the refrigerant after the progress condensing heating of high-pressure air pipe 6 is also
For sweat cooling, last low-temp low-pressure gaseous coolant is recycled to outdoor unit by low pressure gas pipe 7.
Heating capacity is more than the pattern of refrigerating capacity：When unit cooling and warming operation, but heating capacity is more than refrigerating capacity simultaneously
When, then outdoor unit heat exchanger uses as evaporator；Outdoor unit heat exchanger is as evaporator in use, can pass through corresponding four-way
Valve and the valve of control stream break-make are controlled, and the heat exchanger 5 of First Heat Exchanger 4 or second, or heat exchanger are used with control
All use.
Such as：First Heat Exchanger 4 works as evaporator in use, controlling the first four-way valve 2 of correspondingly First Heat Exchanger 4 must be electric,
First valve 10 is opened, and the power down of the second four-way valve 3, the second valve 11 is closed, and the 3rd valve 9 is opened.Now high pressure gaseous refrigerant from
The exhaust of compressor 1 comes out, and carries out Oil-gas Separation by oil eliminator 14, then be recycled to needs by the 3rd valve 9, high-pressure air pipe 6
The indoor set of heating carries out condensing heating, and a condensed refrigerant part is recycled to outdoor by liquid pipe 8, successively by subcooler
12nd, electric expansion valve reducing pressure by regulating flow, First Heat Exchanger 4 evaporate, and are changed into low-temp low-pressure gaseous coolant again by gas-liquid separator 13
It is recirculated in compressor 1, the indoor set that the condensed liquid refrigerants reducing pressure by regulating flow of another part freezes to needs steams
Hair refrigeration, last low-temp low-pressure gaseous coolant are recycled to outdoor unit by low pressure gas pipe 7.So circulation.
When detecting system refrigerant is on the high side, refrigerant storage can be carried out without the outdoor heat exchanger of heat exchange.Heat exchanger is used
When making refrigerant storage, control four-way valve power down corresponding to heat exchanger, control the valve of stream break-make to close.
The utility model can have refrigeration and heat-production functions simultaneously by optimizing control to multiple on-line system, can
Greatly promote unit entirety efficiency；Pass through Optimal Control System pressure, it is possible to increase the comfortableness and reliability of unit operation.
In description of the present utility model, it is to be understood that limited using the word such as " first ", " second ", " the 3rd "
Determine parts, it is only for be easy to distinguish above-mentioned parts, such as there is no a Stated otherwise, above-mentioned word is not special
Implication, therefore it is not intended that limitation to scope of protection of the utility model.
Finally it should be noted that:Above example is only illustrating the technical solution of the utility model rather than it is limited
System；Although the utility model is described in detail with reference to preferred embodiment, those of ordinary skill in the art should
Understand：Specific embodiment of the present utility model can still be modified or some technical characteristics are equally replaced
Change；Without departing from the spirit of technical solutions of the utility model, it all should cover in the claimed technical scheme of the utility model
Among scope.
Claims (15)
- A kind of 1. heat-reclamation multi-compressors air-conditioning system, it is characterised in that：Including compressor (1), the first four-way valve (2), the two or four Port valve (3), First Heat Exchanger (4), the second heat exchanger (5), high-pressure air pipe (6), low pressure gas pipe (7) and liquid pipe (8)；The exhaust end of the compressor (1) is connected in parallel first four-way valve (2), second four-way valve (3) and the height Air pipe (6)；The high-pressure air pipe (6) is provided with the 3rd valve (9) for being used for controlling stream break-make；The first end of the First Heat Exchanger (4) connects first four-way valve (2), the first end of second heat exchanger (5) Second four-way valve (3) is connected, the second end of the First Heat Exchanger (4) and the second end of second heat exchanger (5) are equal Connect the liquid pipe (8)；The pipeline that second end of the First Heat Exchanger (4) is connected with the liquid pipe (8), which is provided with, to be used to control The first valve (10) of stream break-make processed and flow, the pipeline that the second end of second heat exchanger (5) is connected with the liquid pipe (8) Provided with the second valve (11) for controlling stream break-make and flow；The low pressure gas pipe (7), first four-way valve (2) and second four-way valve (3) are all connected with the compressor (1) Inlet end.
- 2. heat-reclamation multi-compressors air-conditioning system as claimed in claim 1, it is characterised in that：First valve (10) and described Two valves (11) include magnetic valve, and the liquid pipe (8) is provided with electric expansion valve.
- 3. heat-reclamation multi-compressors air-conditioning system as claimed in claim 1, it is characterised in that：First valve (10) and described Two valves (11) include electric expansion valve.
- 4. heat-reclamation multi-compressors air-conditioning system as claimed in claim 1, it is characterised in that：The liquid pipe (8) is provided with subcooler (12)。
- 5. heat-reclamation multi-compressors air-conditioning system as claimed in claim 4, it is characterised in that：The liquid pipe (8) connects first Road, the tie point are sequentially connected the subcooler (12) and the compressor (1).
- 6. heat-reclamation multi-compressors air-conditioning system as claimed in claim 5, it is characterised in that：It is swollen that the tie point is provided with electronics Swollen valve (17).
- 7. heat-reclamation multi-compressors air-conditioning system as claimed in claim 1, it is characterised in that：The high-pressure air pipe (6) passes through Two branch roads connection low pressure gas pipe (7), second branch road are provided with the 4th valve (15) for being used for controlling stream break-make.
- 8. heat-reclamation multi-compressors air-conditioning system as claimed in claim 7, it is characterised in that：Second branch road is provided with capillary Pipe.
- 9. heat-reclamation multi-compressors air-conditioning system as claimed in claim 1, it is characterised in that：The inlet end of the compressor (1) Provided with gas-liquid separator (13).
- 10. heat-reclamation multi-compressors air-conditioning system as claimed in claim 1, it is characterised in that：The exhaust end of the compressor (1) Provided with oil eliminator (14).
- 11. heat-reclamation multi-compressors air-conditioning system as claimed in claim 10, it is characterised in that：The oil eliminator (14) passes through 3rd branch road connects the inlet end of the compressor (1), and the 3rd branch road is provided with the 5th valve for being used for controlling stream break-make (16)。
- 12. heat-reclamation multi-compressors air-conditioning system as claimed in claim 11, it is characterised in that：3rd branch road is provided with capillary Pipe.
- 13. heat-reclamation multi-compressors air-conditioning system as claimed in claim 1, it is characterised in that：First four-way valve (2) passes through 4th branch road connects the exhaust end of the compressor (1), and second four-way valve (3) connects the compressor by the 5th branch road (1) exhaust end, the 4th branch road and the 5th branch road are equipped with capillary.
- 14. heat-reclamation multi-compressors air-conditioning system as claimed in claim 1, it is characterised in that：The both ends of 3rd valve (9) are also The both ends of the 6th branch road are connected, the 6th branch road is provided with capillary.
- 15. heat-reclamation multi-compressors air-conditioning system as claimed in claim 1, it is characterised in that：The high-pressure air pipe (6), liquid pipe (8) and low pressure gas pipe (7) is equipped with stop valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721163116.2U CN207146975U (en) | 2017-09-12 | 2017-09-12 | Heat recovery multi-split air conditioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721163116.2U CN207146975U (en) | 2017-09-12 | 2017-09-12 | Heat recovery multi-split air conditioning system |
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| Publication Number | Publication Date |
|---|---|
| CN207146975U true CN207146975U (en) | 2018-03-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721163116.2U Active CN207146975U (en) | 2017-09-12 | 2017-09-12 | Heat recovery multi-split air conditioning system |
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| Country | Link |
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| CN (1) | CN207146975U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020057210A1 (en) * | 2018-09-21 | 2020-03-26 | 青岛海尔空调电子有限公司 | Cooling and heating switching device for variable refrigerant flow system capable of heat recovery, variable refrigerant flow system, and control method |
| CN111706941A (en) * | 2020-05-29 | 2020-09-25 | 苏州浪潮智能科技有限公司 | Combined type data center cooling and heating system |
| CN111895675A (en) * | 2020-07-24 | 2020-11-06 | 苏州浪潮智能科技有限公司 | Air conditioning system of heat recovery data center |
-
2017
- 2017-09-12 CN CN201721163116.2U patent/CN207146975U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020057210A1 (en) * | 2018-09-21 | 2020-03-26 | 青岛海尔空调电子有限公司 | Cooling and heating switching device for variable refrigerant flow system capable of heat recovery, variable refrigerant flow system, and control method |
| CN111706941A (en) * | 2020-05-29 | 2020-09-25 | 苏州浪潮智能科技有限公司 | Combined type data center cooling and heating system |
| CN111895675A (en) * | 2020-07-24 | 2020-11-06 | 苏州浪潮智能科技有限公司 | Air conditioning system of heat recovery data center |
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