CN207585128U - A kind of overlapping, refrigerating bimodulus refrigeration system - Google Patents
A kind of overlapping, refrigerating bimodulus refrigeration system Download PDFInfo
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- CN207585128U CN207585128U CN201721476728.7U CN201721476728U CN207585128U CN 207585128 U CN207585128 U CN 207585128U CN 201721476728 U CN201721476728 U CN 201721476728U CN 207585128 U CN207585128 U CN 207585128U
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Abstract
The utility model is related to refrigeration technology field more particularly to a kind of overlapping, refrigerating bimodulus refrigeration system, including condenser/evaporator, NH3Cooling cycle system and CO2Cooling cycle system；The NH3Cooling cycle system and CO2Cooling cycle system is connect respectively with the condenser/evaporator；The CO2The first shut-off valve is equipped between first output terminal of low pressure storage tank and first compressor, the second shut-off valve, the condenser/evaporator and the CO are equipped between first compressor and the condenser/evaporator2Third shut-off valve, the throttle valve and the CO are equipped between high pressure storage tank2The 4th shut-off valve is equipped between the first input end of low pressure storage tank；The CO2First output terminal of low pressure storage tank is connect by the 5th shut-off valve with the input terminal of the condenser/evaporator, and the output terminal of the condenser/evaporator passes through the 6th shut-off valve and the CO2The first input end connection of low pressure storage tank.The overlapping of the utility model, refrigerating bimodulus refrigerant system configurations are simple, can independently carry out work system switching.
Description
Technical field
The utility model is related to refrigeration technology field more particularly to a kind of overlapping, refrigerating bimodulus refrigeration systems.
Background technology
R717/CO2Cascade system and R717/CO2It is low that refrigerating system, which is all high-temperature level R717 systems by condenser/evaporator,
Warm grade CO2System provides low-temperature receiver.R717/CO2Cascade system is normally applied operating mode within the temperature range of -35 DEG C~-55 DEG C,
R717/CO2Refrigerating system is normally applied operating mode within the temperature range of -42 DEG C~0 DEG C.During client's use, often deposit
In use condition and the changed situation of ambient temperature, change refrigeration system is at this moment just needed otherwise will to be difficult to meet to make
With demand, still, change refrigeration system and take longer and reduce production efficiency.Therefore it provides one kind can as needed may be used
Reach economical and energy saving, the system of Effec-tive Function to carry out corresponding system switching according to the variation of use condition and ambient temperature
Cooling system is very necessary.
Utility model content
Technical problem to be solved in the utility model is：Offer one kind is simple in structure, can independently carry out work system
The overlapping of switching, refrigerating bimodulus refrigeration system.
In order to solve the above-mentioned technical problem, the technical solution adopted in the utility model is：A kind of overlapping, refrigerating bimodulus refrigeration
System, including condenser/evaporator, NH3Cooling cycle system and CO2Cooling cycle system；
The NH3Cooling cycle system and CO2Cooling cycle system is connect respectively with the condenser/evaporator；
The CO2Cooling cycle system includes CO2Low pressure storage tank, the first compressor, CO2High pressure storage tank and first throttle valve,
The CO2First output terminal of low pressure storage tank is connect by first compressor with the input terminal of the condenser/evaporator, institute
State the output terminal of condenser/evaporator and the CO2The input terminal connection of high pressure storage tank, the CO2The output terminal of high pressure storage tank passes through
The first throttle valve and the CO2The first input end connection of low pressure storage tank；
The CO2It is equipped with the first shut-off valve between first output terminal of low pressure storage tank and first compressor, described the
The second shut-off valve, the condenser/evaporator and the CO are equipped between one compressor and the condenser/evaporator2High pressure storage tank it
Between be equipped with third shut-off valve, the first throttle valve and the CO2The 4th cut-off is equipped between the first input end of low pressure storage tank
Valve；
The CO2First output terminal of low pressure storage tank is connected by the input terminal of the 5th shut-off valve and the condenser/evaporator
It connects, the output terminal of the condenser/evaporator passes through the 6th shut-off valve and the CO2The first input end connection of low pressure storage tank.
In an alternative embodiment, the CO2Cooling cycle system further includes the first evaporator, first evaporator it is defeated
Outlet and input terminal respectively with the CO2Second input terminal of low pressure storage tank is connected with second output terminal.
In an alternative embodiment, the CO2Cooling cycle system, which further includes, is arranged on the CO2The output terminal of low pressure storage tank
CO between the input terminal of first evaporator2The pump housing.
In an alternative embodiment, the CO2Cooling cycle system, which further includes, is arranged on first compressor and described cold
The first oil eliminator between the input terminal of solidifying evaporator.
In an alternative embodiment, the NH3Cooling cycle system includes being steamed by gas-liquid separator, the second compressor, second
Send out the closed circuit of device, liquid reservoir and second throttle composition, the output terminal and input terminal of the gas-liquid separator respectively with institute
The input terminal for stating condenser/evaporator is connected with output terminal.
In an alternative embodiment, the NH3Cooling cycle system, which further includes, is arranged on second compressor and described
The second oil eliminator between two evaporators.
In an alternative embodiment, the overlapping, refrigerating bimodulus refrigeration system further include control module, the control module point
Do not connect with first shut-off valve, the second shut-off valve, third shut-off valve, the 4th shut-off valve, the 5th shut-off valve and the 6th shut-off valve
It connects.
The beneficial effects of the utility model are：Using the first shut-off valve, the second shut-off valve, third shut-off valve, the 4th section
Only valve, the 5th shut-off valve and the 6th shut-off valve control refrigeration system, to realize the freedom of cascade system and refrigerating system
Switching, expands the application range of product, reaches economical and energy saving, Effec-tive Function.
Description of the drawings
Fig. 1 is a kind of overlapping of the utility model embodiment, the structure diagram of refrigerating bimodulus refrigeration system；
Label declaration：
1- condenser/evaporators；
2-NH3Cooling cycle system；21- gas-liquid separators；The second compressors of 22-；The second evaporators of 23-；24- reservoirs
Device；25- second throttle；The second oil eliminators of 26-；
3-CO2Cooling cycle system；31-CO2Low pressure storage tank；The first compressors of 32-；33-CO2High pressure storage tank；34- first
Throttle valve；The first evaporators of 35-；36-CO2The pump housing；The first oil eliminators of 37-；
The first shut-off valves of 4-；
The second shut-off valves of 5-；
6- third shut-off valves；
The 4th shut-off valves of 7-；
The 5th shut-off valves of 8-；
The 6th shut-off valves of 9-.
Specific embodiment
For technology contents, the objects and the effects of the utility model are described in detail, below in conjunction with embodiment and match
Attached drawing is closed to be explained.
The design of the utility model most critical is：Utilize the first shut-off valve, the second shut-off valve, third shut-off valve, the 4th
Shut-off valve, the 5th shut-off valve and the 6th shut-off valve control refrigeration system, with realize cascade system and refrigerating system from
By switching.
Please refer to Fig. 1, a kind of overlapping, refrigerating bimodulus refrigeration system, including condenser/evaporator 1, NH3Cooling cycle system 2
And CO2Cooling cycle system 3；
The NH3Cooling cycle system 2 and CO2Cooling cycle system 3 is connect respectively with the condenser/evaporator 1；
The CO2Cooling cycle system 3 includes CO2Low pressure storage tank 31, the first compressor 32, CO2High pressure storage tank 33 and first
Throttle valve 34, the CO2First output terminal of low pressure storage tank 31 passes through first compressor 32 and the condenser/evaporator 1
Input terminal connects, output terminal and the CO of the condenser/evaporator 12The input terminal connection of high pressure storage tank 33, the CO2High pressure
The output terminal of storage tank 33 passes through the first throttle valve 34 and the CO2The first input end connection of low pressure storage tank 31；
The CO2The first shut-off valve 4, institute are equipped between first output terminal of low pressure storage tank 31 and first compressor 32
It states and the second shut-off valve 5 is equipped between the first compressor 32 and the condenser/evaporator 1, the condenser/evaporator 1 and the CO2It is high
Third shut-off valve 6, the first throttle valve 34 and the CO are equipped between pressure storage tank 332The first input end of low pressure storage tank 31 it
Between be equipped with the 4th shut-off valve 7；
The CO2The input terminal that first output terminal of low pressure storage tank 31 passes through the 5th shut-off valve 8 and the condenser/evaporator 1
Connection, the output terminal of the condenser/evaporator 1 pass through the 6th shut-off valve 9 and CO2The first input end of low pressure storage tank 31 connects
It connects.
As can be seen from the above description, the beneficial effects of the utility model are：When the first shut-off valve 4, the second shut-off valve 5,
Three shut-off valves 6 and the 4th shut-off valve 7 are opened, and when the 5th shut-off valve 8 and the 6th shut-off valve 9 are closed, system is run for cascade system
Pattern；When the first shut-off valve 4, the second shut-off valve 5,6 and the 4th shut-off valve 7 of third shut-off valve are closed, the 5th shut-off valve 8 and the 6th
When shut-off valve 9 is opened, system is refrigerating system running pattern.
During using cascade system operational mode, NH3Cooling cycle system 2 continues refrigeration cycle work, CO2Refrigeration cycle system
CO in system 32It is cold that the refrigerant gas of low pressure storage tank 31 enters condenser/evaporator 1 after the first compressor 32 is compressed into high pressure gas
But it liquefies, subsequently into CO2High pressure storage tank 33 flows into CO after being then depressured by first throttle valve 342Low pressure storage tank 31, i.e., in fact
Existing CO2The refrigeration cycle work of cooling cycle system 3.
During using refrigerating system running pattern, NH3Cooling cycle system 2 continues refrigeration cycle work, CO2Refrigeration cycle system
System 3 is without work.
Further, the CO2Cooling cycle system 3 further includes the first evaporator 35, first evaporator 35 it is defeated
Outlet and input terminal respectively with the CO2Second input terminal of low pressure storage tank 31 is connected with second output terminal.
Further, the CO2Cooling cycle system 3, which further includes, is arranged on the CO2The output terminal of low pressure storage tank 31 and institute
State the CO between the input terminal of the first evaporator 352The pump housing 36.
Seen from the above description, the CO in condenser/evaporator 1 after cooling liquid2Liquid flows into CO2Low pressure storage tank 31, CO2It is low
The refrigerant liquid in storage tank 31 is pressed using CO2The pump housing 36 becomes CO after entering the heat absorption evaporation of the first evaporator 352Gas, CO2
Gas returns to CO2It is again flowed into condenser/evaporator 1 in low pressure storage tank 31 and by the first shut-off valve 4 and the second shut-off valve 5
Form CO2Cycle.
Further, the CO2Cooling cycle system 3, which further includes, is arranged on first compressor 32 and the condensation steaming
Send out the first oil eliminator 37 between the input terminal of device 1.
Seen from the above description, the lubrication contained in the high pressure gas that the first oil eliminator 37 discharges the first compressor 32
Oil is detached, to ensure CO2Cooling cycle system 3 is safely and efficiently run.
Further, the NH3Cooling cycle system includes being evaporated by gas-liquid separator 21, the second compressor 22, second
The closed circuit that device 23, liquid reservoir 24 and second throttle 25 form, the output terminal and input terminal point of the gas-liquid separator 21
It is not connect with the input terminal of the condenser/evaporator 1 and output terminal.
Seen from the above description, NH3Gas is compressed into high temperature and high pressure gas and waits by the second compressor 22 enters the second steaming
Hair device 23 is cooled to liquid, then flows into liquid reservoir 24, enters in gas-liquid separator 21 after the decompression of second throttle 25, NH3
Liquid enters 1 vaporation cooling refrigeration agent CO of condenser/evaporator2, NH3Gas returns the second compressor via gas-liquid separator 21
22, form NH3Cooling cycle system 2.
Further, the NH3Cooling cycle system, which further includes, is arranged on second compressor 22 and second steaming
Send out the second oil eliminator 26 between device 23.
Seen from the above description, the lubrication contained in the high pressure gas that the second oil eliminator 26 discharges the second compressor 22
Oil is detached, to ensure NH3Refrigeration system is safely and efficiently run.
Further, the overlapping, refrigerating bimodulus refrigeration system further include control module, the control module respectively with institute
The first shut-off valve 4, the second shut-off valve 5, third shut-off valve 6, the 4th shut-off valve 7, the 5th shut-off valve 8 and the 6th shut-off valve 9 is stated to connect
It connects.
Seen from the above description, it can be realized using control module and shut-off valve each in system is precisely controlled, to protect
Demonstrate,prove overlapping, the stabilization of refrigerating bimodulus refrigeration system, Effec-tive Function.
Fig. 1 is please referred to, the embodiment one of the utility model is：A kind of overlapping, refrigerating bimodulus refrigeration system are steamed including condensation
Send out device 1, NH3Cooling cycle system 2 and CO2Cooling cycle system 3；
The NH3Cooling cycle system 2 and CO2Cooling cycle system 3 is connect respectively with the condenser/evaporator 1；
The CO2Cooling cycle system 3 includes CO2Low pressure storage tank 31, the first compressor 32, CO2High pressure storage tank 33 and first
Throttle valve 34, the CO2First output terminal of low pressure storage tank 31 passes through first compressor 32 and the condenser/evaporator 1
Input terminal connects, output terminal and the CO of the condenser/evaporator 12The input terminal connection of high pressure storage tank 33, the CO2High pressure
The output terminal of storage tank 33 passes through the first throttle valve 34 and the CO2The first input end connection of low pressure storage tank 31；
The CO2The first shut-off valve 4, institute are equipped between first output terminal of low pressure storage tank 31 and first compressor 32
It states and the second shut-off valve 5 is equipped between the first compressor 32 and the condenser/evaporator 1, the condenser/evaporator 1 and the CO2It is high
Third shut-off valve 6, the first throttle valve 34 and the CO are equipped between pressure storage tank 332The first input end of low pressure storage tank 31 it
Between be equipped with the 4th shut-off valve 7；
The CO2The input terminal that first output terminal of low pressure storage tank 31 passes through the 5th shut-off valve 8 and the condenser/evaporator 1
Connection, the output terminal of the condenser/evaporator 1 pass through the 6th shut-off valve 9 and CO2The first input end of low pressure storage tank 31 connects
It connects.
Fig. 1 is please referred to, the embodiment two of the utility model is：A kind of overlapping, refrigerating bimodulus refrigeration system are steamed including condensation
Send out device 1, NH3Cooling cycle system 2 and CO2Cooling cycle system 3；
The NH3Cooling cycle system 2 and CO2Cooling cycle system 3 is connect respectively with the condenser/evaporator 1；
The CO2Cooling cycle system 3 includes CO2Low pressure storage tank 31, the first compressor 32, CO2High pressure storage tank 33 and first
Throttle valve 34, the CO2First output terminal of low pressure storage tank 31 passes through first compressor 32 and the condenser/evaporator 1
Input terminal connects, output terminal and the CO of the condenser/evaporator 12The input terminal connection of high pressure storage tank 33, the CO2High pressure
The output terminal of storage tank 33 passes through the first throttle valve 34 and the CO2The first input end connection of low pressure storage tank 31；
The CO2The first shut-off valve 4, institute are equipped between first output terminal of low pressure storage tank 31 and first compressor 32
It states and the second shut-off valve 5 is equipped between the first compressor 32 and the condenser/evaporator 1, the condenser/evaporator 1 and the CO2It is high
Third shut-off valve 6, the first throttle valve 34 and the CO are equipped between pressure storage tank 332The first input end of low pressure storage tank 31 it
Between be equipped with the 4th shut-off valve 7；
The CO2The input terminal that first output terminal of low pressure storage tank 31 passes through the 5th shut-off valve 8 and the condenser/evaporator 1
Connection, the output terminal of the condenser/evaporator 1 pass through the 6th shut-off valve 9 and CO2The first input end of low pressure storage tank 31 connects
It connects.
The CO2Cooling cycle system 3 further includes the first evaporator 35, the output terminal of first evaporator 35 and input
End respectively with the CO2Second input terminal of low pressure storage tank 31 is connected with second output terminal.The CO2Cooling cycle system 3 also wraps
It includes and is arranged on the CO2CO between the input terminal of the output terminal of low pressure storage tank 31 and first evaporator 352The pump housing 36.Institute
State CO2Cooling cycle system 3, which further includes, to be arranged between first compressor 32 and the input terminal of the condenser/evaporator 1
First oil eliminator 37.The NH3Cooling cycle system is included by gas-liquid separator 21, the second compressor 22, the second evaporator
23rd, the closed circuit that liquid reservoir 24 and second throttle 25 form, output terminal and the input terminal difference of the gas-liquid separator 21
It is connect with the input terminal and output terminal of the condenser/evaporator 1.The NH3Cooling cycle system, which further includes, is arranged on described second
The second oil eliminator 26 between compressor 22 and second evaporator 23.The overlapping, refrigerating bimodulus refrigeration system are also wrapped
Control module is included, the control module is ended respectively with first shut-off valve 4, the second shut-off valve 5, third shut-off valve the 6, the 4th
Valve 7, the 5th shut-off valve 8 and the 6th shut-off valve 9 connect.
In conclusion it is provided by the utility model using the first shut-off valve, the second shut-off valve, third shut-off valve, the 4th section
Only valve, the 5th shut-off valve and the 6th shut-off valve control refrigeration system, to realize the freedom of cascade system and refrigerating system
Switching, expands the application range of product, reaches economical and energy saving, Effec-tive Function.
The above description is only the embodiments of the present invention, and it does not limit the scope of the patent of the present invention, every
Equivalents made based on the specification and figures of the utility model are directly or indirectly used in relevant technology neck
Domain is equally included in the patent within the scope of the utility model.
Claims (7)
1. a kind of overlapping, refrigerating bimodulus refrigeration system, which is characterized in that including condenser/evaporator, NH3Cooling cycle system and CO2
Cooling cycle system；
The NH3Cooling cycle system and CO2Cooling cycle system is connect respectively with the condenser/evaporator；
The CO2Cooling cycle system includes CO2Low pressure storage tank, the first compressor, CO2High pressure storage tank and first throttle valve, it is described
CO2First output terminal of low pressure storage tank is connect by first compressor with the input terminal of the condenser/evaporator, described cold
The output terminal and the CO of solidifying evaporator2The input terminal connection of high pressure storage tank, the CO2The output terminal of high pressure storage tank passes through described
First throttle valve and the CO2The first input end connection of low pressure storage tank；
The CO2The first shut-off valve, first compression are equipped between first output terminal of low pressure storage tank and first compressor
The second shut-off valve, the condenser/evaporator and the CO are equipped between machine and the condenser/evaporator2It is equipped between high pressure storage tank
Third shut-off valve, the first throttle valve and the CO2The 4th shut-off valve is equipped between the first input end of low pressure storage tank；
The CO2First output terminal of low pressure storage tank is connect by the 5th shut-off valve with the input terminal of the condenser/evaporator, described
The output terminal of condenser/evaporator passes through the 6th shut-off valve and the CO2The first input end connection of low pressure storage tank.
2. overlapping according to claim 1, refrigerating bimodulus refrigeration system, which is characterized in that the CO2Cooling cycle system
Further include the first evaporator, the output terminal and input terminal of first evaporator respectively with the CO2The second of low pressure storage tank is defeated
Enter end to connect with second output terminal.
3. overlapping according to claim 2, refrigerating bimodulus refrigeration system, which is characterized in that the CO2Cooling cycle system
It further includes and is arranged on the CO2CO between the input terminal of the output terminal of low pressure storage tank and first evaporator2The pump housing.
4. overlapping according to claim 1, refrigerating bimodulus refrigeration system, which is characterized in that the CO2Cooling cycle system
Further include the first oil eliminator being arranged between first compressor and the input terminal of the condenser/evaporator.
5. overlapping according to claim 1, refrigerating bimodulus refrigeration system, which is characterized in that the NH3Cooling cycle system
It is described including the closed circuit being made of gas-liquid separator, the second compressor, the second evaporator, liquid reservoir and second throttle
The output terminal and input terminal of gas-liquid separator are connect respectively with the input terminal of the condenser/evaporator and output terminal.
6. overlapping according to claim 5, refrigerating bimodulus refrigeration system, which is characterized in that the NH3Cooling cycle system
Further include the second oil eliminator being arranged between second compressor and second evaporator.
7. overlapping according to claim 1, refrigerating bimodulus refrigeration system, which is characterized in that the overlapping, refrigerating bimodulus system
Cooling system further includes control module, the control module respectively with first shut-off valve, the second shut-off valve, third shut-off valve,
4th shut-off valve, the 5th shut-off valve and the connection of the 6th shut-off valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721476728.7U CN207585128U (en) | 2017-11-08 | 2017-11-08 | A kind of overlapping, refrigerating bimodulus refrigeration system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721476728.7U CN207585128U (en) | 2017-11-08 | 2017-11-08 | A kind of overlapping, refrigerating bimodulus refrigeration system |
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| CN207585128U true CN207585128U (en) | 2018-07-06 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107677003A (en) * | 2017-11-08 | 2018-02-09 | 福建雪人股份有限公司 | A kind of overlapping, refrigerating bimodulus refrigeration system |
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2017
- 2017-11-08 CN CN201721476728.7U patent/CN207585128U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107677003A (en) * | 2017-11-08 | 2018-02-09 | 福建雪人股份有限公司 | A kind of overlapping, refrigerating bimodulus refrigeration system |
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