CN203323454U - Large-volume double-evaporator screw type ice storage heat pump unit - Google Patents
Large-volume double-evaporator screw type ice storage heat pump unit Download PDFInfo
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- CN203323454U CN203323454U CN2013202662996U CN201320266299U CN203323454U CN 203323454 U CN203323454 U CN 203323454U CN 2013202662996 U CN2013202662996 U CN 2013202662996U CN 201320266299 U CN201320266299 U CN 201320266299U CN 203323454 U CN203323454 U CN 203323454U
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Abstract
The utility model relates to a heat pump unit used for a central air conditioner. A large-volume double-evaporator screw type ice storage heat pump unit comprises a cold accumulation evaporator (4), an air conditioning evaporator (3), compressors (1), a condenser (2) and an oil separator (5). The inside of the bottom end of the cold accumulation evaporator (4) is communicated with the inside of the bottom end of the air conditioning evaporator (3) through a liquid level balance pipeline (11). The number of the compressors (1) is two. The cold accumulation evaporator (4) is communicated with the two compressors (1) through a pipeline and a valve respectively. The air conditioning evaporator (3) is also communicated with the two compressors (1) through a pipeline and a valve respectively. The compressors (1) are communicated with the condenser (2) through the oil separator (5). The large-volume double-evaporator screw type ice storage heat pump unit has the advantages of multiple functions, high energy efficiency, large volume, small size, reliable operation, energy conservation and environmental friendliness, and can be widely applied to large-scale civil buildings and industrial sites requiring centralized refrigeration and heating.
Description
Technical field
The utility model relates to a kind of central air-conditioning source pump, be specifically related to there is air conditioner refrigerating, night cold-storage and the double evaporators ice storage cold-hot pump unit of winter heating.
Background technology
Along with improving constantly of rapid development of economy and city commercial level, jumbo central air-conditioning unit application is more and more universal, particularly along with country is more and more higher to energy-conservation and requirement environmental protection, people recognize that the air-conditioning that cold-storage adjusts the lotus technology to be applied to building is round the clock had to very large " peak load shifting " potentiality gradually, and novel energy-conserving product also constantly is being applied to market as heat pump series products, cold storage cooling-water machine.In the middle of the cold-storage or heat pump product of cold scope 1000KW-3000KW, generally adopt the centrifugal unit of water-cooled, although it is high to have efficiency, relatively also there are some problems in the advantage that noise is little:
1. initial cost is high, and the investment recovery time is longer;
2. multi-state operation, single compressor can't meet pressure head, needs to adopt double-compressor to connect to promote pressure head, and control system is comparatively complicated;
3. only have cold-storage class or heat pump series products on open market, can't have daytime in summer refrigeration, night cold-storage and winter heating concurrently, function is comparatively single;
4. surge, fluctuation of service easily occur in centrifuge under underload and special operation condition;
5. unit volume is larger, and floor space is many, the division of room difficulty; And the regulator cubicle volume is larger, generally ground loading need be set, additionally increase the machine room space.
The utility model content
Technique effect of the present utility model can overcome above-mentioned defect, and a kind of large capacity double evaporators screw ice storage cold-hot pump unit is provided, and it has air conditioner refrigerating, ice cold-storage and heat-production functions.
For achieving the above object, the utility model adopts following technical scheme: it comprises the cold-storage evaporimeter, evaporator using for air, compressor, condenser, oil eliminator, cold-storage is inner by the liquid level equilibrium pipeline connection with evaporimeter bottom and evaporator using for air bottom, compressor arranges two, cold-storage passes through pipeline with evaporimeter, valve is communicated with two compressors respectively, evaporator using for air is passed through pipeline, valve is communicated with two compressors respectively, compressor is communicated with condenser by oil eliminator, condenser passes through pipeline, valve respectively with the cold-storage evaporimeter, evaporator using for air is communicated with.
This type at least comprises two compressors, two oil eliminators, two evaporimeters, condenser and the independent expansion throttling device arranged of two covers.Wherein, three heat exchangers are placed side by side, and in the middle of condenser is placed on, two evaporimeters are placed on respectively the left and right sides of condenser, and compressor is placed on above condenser, before oil eliminator is positioned at compressor outlet and enters condenser; Throttling arrangement adopts electric expansion valve, is convenient to control the refrigerant flow under different operating modes; Also be provided with air conditioner refrigerating, ice cold-storage and heat pump functional switching valve on refrigerant line, between two evaporimeters, also be provided with the refrigerant level equalizing line, the evaporimeter liquid level caused with three operating mode operations of balance is unequal, prevents fluctuation of service.
Evaporator using for air and cold-storage all adopt two-segment type with evaporimeter, and the circulating refrigerant of every joint heat exchanger arranges separately.
Described evaporator using for air and cold-storage are flooded evaporator with evaporimeter.
Evaporator using for air, cold-storage adopt electrical ball valve with the valve between evaporimeter and compressor.
Evaporator using for air, cold-storage all adopt stop valve, electrical ball valve, electric expansion valve with the valve arranged on every pipeline between evaporimeter and condenser.
Condenser adopts two-segment type, and the circulating refrigerant of every joint heat exchanger arranges separately.
Described condenser is shell and tube condenser.
Oil eliminator adopts the horizontal compressor outside that is placed on, and oil piping system is arranged on outside, is convenient to check.Compressor can adopt motor and discharge chambe independently, and motor adopts Liquid injection cooling, and the back flow of refrigerant of cooling rear evaporation is to evaporimeter.
Be provided with check-valves between compressor and oil eliminator.
The utility model, because adopting above structure, has following advantage:
1. unit can be in refrigeration daytime in season refrigeration, night cold-storage, and night, cold-storage not only can be avoided peak of power consumption, avoided the effect of rationing the power supply, and also can save a large amount of operating costs for the user; Can also make in the winter time hot water, as heating water or health hot water, supply with the user, reduce carbon emission and environmental pollution that other form energy multi-bands are come.
2. unit adopts the Double-head parallel structure, and refrigerating capacity can reach 1000KW-3000KW, and unit volume is little, saves the machine room space.
3. unit adopts semi-closed double-screw refrigeration compressor and flooded evaporator, and efficiency is high.
4. unit adopts double evaporators, and wherein evaporator using for air can make the common air-conditioning chilled water, and cold-storage can make cold-storage chilled water at night with evaporimeter.
5. unit adopts cold-producing medium independence dual system loop, and during two heads operations, cold-producing medium and lubricating oil system can not obscured separately, and each road is equipped with stop valve, filter, visor and electric expansion valve, is convenient to keep in repair; Electric expansion valve has and is quick on the draw, and precision is high, and adjustable range is wide, uses the advantages such as a plurality of operating modes.
6. the refrigerant level equalizing line that unit adopts can prevent two evaporimeters contingent liquid level imbalance problem in the intermitten service process, and be controlled by electrical ball valve that unit operation is more stable.
7. the compressor electric motor of unit adopts the Liquid injection cooling mode, can better reduce the motor coil temperature, extends the life-span of compressor electric motor.
8. unit adopts the PLC Programmable Logic Controller, can have the multi-mode operation of realization option, and display floater color touch screen, good looking appearance, and convenient operation, the cold regulation scope is 12.5%-100%.
9. the employing of unit electric control system is integrated, and startup cabinet, switch board, display floater, high-pressure manometer, low pressure gauge all are arranged on unit, convenient operation and maintenance.
In sum, the utlity model has a tractor serves several purposes, efficiency is high, capacity is large, volume is little, the advantage of reliable, energy-conserving and environment-protective; Can be widely used in large-scale civil buildings and the industrial site of centralized refrigeration and heating.
The accompanying drawing explanation
Fig. 1 is theory structure schematic diagram of the present utility model.
In figure: 1. compressor; 2. condenser; 3. evaporator using for air; 4. cold-storage evaporimeter; 5. oil eliminator; 6. stop valve; 7. electrical ball valve; 8. check-valves; 9. liquid level equilibrium pipeline; 10. electric expansion valve.
The specific embodiment
As shown in Figure 1, large capacity double evaporators screw ice storage cold-hot pump unit of the present utility model comprises evaporimeter 4 for cold-storage, evaporator using for air 3, compressor 1, condenser 2, oil eliminator 5, cold-storage is communicated with by liquid level equilibrium pipeline 9 with evaporator using for air 3 bottoms are inner with evaporimeter 4 bottoms, compressor 1 arranges two, cold-storage passes through pipeline with evaporimeter 4, valve is communicated with two compressors 1 respectively, evaporator using for air 3 is passed through pipeline, valve is communicated with two compressors 1 respectively, compressor 1 is communicated with condenser 2 by oil eliminator 5, condenser 2 passes through pipeline, valve respectively with evaporimeter 4 for cold-storage, evaporator using for air 3 is communicated with.
Evaporator using for air 3 and cold-storage all adopt two-segment type with evaporimeter 4, and the circulating refrigerant of every joint heat exchanger arranges separately.
Described evaporator using for air 3 and cold-storage are flooded evaporator with evaporimeter 4.
Evaporator using for air 3, cold-storage adopt electrical ball valve 7 with the valve between evaporimeter 4 and compressor 1.
Evaporator using for air 3, cold-storage all adopt stop valve 6, electrical ball valve 7, electric expansion valve 10 with the valve arranged on every pipeline between evaporimeter 4 and condenser 2.
Condenser 2 adopts two-segment type, and the circulating refrigerant of every joint heat exchanger arranges separately.
Described condenser 2 is shell and tube condenser.
Oil eliminator 5 adopts horizontal compressor 1 outside that is placed on.
Be provided with check-valves 8 between compressor 1 and oil eliminator 5.
Claims (6)
1. a large capacity double evaporators screw ice storage cold-hot pump unit, it is characterized in that, comprise evaporimeter for cold-storage (4), evaporator using for air (3), compressor (1), condenser (2), oil eliminator (5), evaporimeter for cold-storage (4) bottom is communicated with by liquid level equilibrium pipeline (11) with evaporator using for air (3) bottom is inner, compressor (1) arranges two, evaporimeter for cold-storage (4) passes through pipeline, valve is communicated with two compressors (1) respectively, evaporator using for air (3) is passed through pipeline, valve is communicated with two compressors (1) respectively, compressor (1) is communicated with condenser (2) by oil eliminator (5).
2. large capacity double evaporators screw ice storage cold-hot pump unit according to claim 1, is characterized in that, evaporator using for air (3) and for cold-storage evaporimeter (4) all adopt two-segment type, the circulating refrigerant of every joint heat exchanger arranges separately.
3. large capacity double evaporators screw ice storage cold-hot pump unit according to claim 2, is characterized in that, described evaporator using for air (3) and for cold-storage evaporimeter (4) be flooded evaporator.
4. large capacity double evaporators screw ice storage cold-hot pump unit according to claim 1, is characterized in that, condenser (2) adopts two-segment type, and the circulating refrigerant of every joint heat exchanger arranges separately.
5. large capacity double evaporators screw ice storage cold-hot pump unit according to claim 4, is characterized in that, described condenser (2) is shell and tube condenser.
6. large capacity double evaporators screw ice storage cold-hot pump unit according to claim 1, is characterized in that, oil eliminator (5) adopts horizontal compressor (1) outside that is placed on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202662996U CN203323454U (en) | 2013-05-16 | 2013-05-16 | Large-volume double-evaporator screw type ice storage heat pump unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202662996U CN203323454U (en) | 2013-05-16 | 2013-05-16 | Large-volume double-evaporator screw type ice storage heat pump unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203323454U true CN203323454U (en) | 2013-12-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013202662996U Expired - Lifetime CN203323454U (en) | 2013-05-16 | 2013-05-16 | Large-volume double-evaporator screw type ice storage heat pump unit |
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| Country | Link |
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| CN (1) | CN203323454U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108895869A (en) * | 2018-08-10 | 2018-11-27 | 江苏诺普乐生物科技有限公司 | A kind of multiloop dual control temperature phase change cold-storage device |
| CN110425780A (en) * | 2018-05-08 | 2019-11-08 | 约克（无锡）空调冷冻设备有限公司 | Refrigeration system and method for controlling refrigeration system |
-
2013
- 2013-05-16 CN CN2013202662996U patent/CN203323454U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110425780A (en) * | 2018-05-08 | 2019-11-08 | 约克（无锡）空调冷冻设备有限公司 | Refrigeration system and method for controlling refrigeration system |
| CN108895869A (en) * | 2018-08-10 | 2018-11-27 | 江苏诺普乐生物科技有限公司 | A kind of multiloop dual control temperature phase change cold-storage device |
| CN108895869B (en) * | 2018-08-10 | 2023-12-05 | 江苏诺普乐生物科技有限公司 | Multi-loop double-temperature-control phase change cold accumulation device |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131204 |
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| CX01 | Expiry of patent term |