CN201662271U - Multi- stage cooling and refrigerating system - Google Patents
Multi- stage cooling and refrigerating system Download PDFInfo
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- CN201662271U CN201662271U CN2010201146686U CN201020114668U CN201662271U CN 201662271 U CN201662271 U CN 201662271U CN 2010201146686 U CN2010201146686 U CN 2010201146686U CN 201020114668 U CN201020114668 U CN 201020114668U CN 201662271 U CN201662271 U CN 201662271U
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- heat exchanger
- exchanger device
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- water
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Abstract
The utility model discloses a multi-stage cooling and refrigerating system which includes an evaporative condenser, a first pre-cooling heat exchanger, a second pre-cooling heat exchanger, a third pre-cooling heat exchanger, a first pre-cooling refrigerating compressor, a second pre-cooling refrigerating compressor, an insulating water storage tank, a circulating water pump, a high-pressure liquid storage device and an effective oil separator; the water outlet end of the evaporative condenser is connected with the water inlet end of the first pre-cooling heat exchanger; the water outlet end of the first pre-cooling heat exchanger is connected with the water inlet end of the second pre-cooling heat exchanger; the water outlet end of the second pre-cooling heat exchanger is connected with the water inlet end of the third pre-cooling heat exchanger; the water outlet end of the third pre-cooling heat exchanger is connected with the water inlet port of the insulating water storage tank; the water outlet of the insulating storage tank is connected with the water inlet of the second pre-cooling heat exchanger; and the refrigerating agents in the pre-cooling heat exchangers exchange heat with water. The water in the multi- stage cooling and refrigerating system is cooled by multi-stages solving the problems of single refrigerating way and poor refrigerating effect of the current refrigerating system which only adopts single-stage refrigerating.
Description
Technical field
The utility model relates to refrigeration plant manufacturing technology field, more particularly, relates to a kind of multistage cooling refrigeration system.
Background technology
At present, in existing refrigeration system, adopt a temperature reduction way to freeze, because have only a kind of refrigeration evaporator temperature, so refrigeration is poor, and version is more single, and does not reach problem of energy saving.
The utility model content
In view of this, the utility model provides a kind of multistage cooling refrigeration system, and is single to solve existing refrigeration system refrigeration structure form, the problem of power saving function difference.
For achieving the above object, the utility model provides following technical scheme:
A kind of multistage cooling refrigeration system comprises: evaporative condenser, the first precool heat exchanger device, the second precool heat exchanger device, the 3rd precool heat exchanger device, the first precooling refrigeration compressor, the second precooling refrigeration compressor, insulation water storage box, water circulating pump, high pressure receiver, high-efficiency oil separator;
The water side of described evaporative condenser is connected with the described first precool heat exchanger device water inlet end, the water side of described first preheating heat exchanger is connected with the water inlet end of the second precool heat exchanger device, the water side of the described second precool heat exchanger device is connected with the water inlet end of described the 3rd precool heat exchanger device, the water side of described the 3rd precool heat exchanger device is connected with the water inlet of described insulation water storage box, and the delivery port of described insulation water storage box is connected by the water inlet of described water circulating pump with the described second precool heat exchanger device;
The refrigerant outlet of described evaporative condenser is connected with high pressure receiver, described efficient liquid reservoir is by arm and the described first precool heat exchanger device, the cold-producing medium of the second precool heat exchanger device and the 3rd preheating heat exchanger flows into end and is connected, the cold-producing medium outflow end of the described first precool heat exchanger device is connected with the described first precooling refrigeration compressor, the cold-producing medium outflow end of described second precool heat exchanger device and the 3rd precool heat exchanger device is connected with the described second precooling refrigeration compressor, the described first precooling refrigeration compressor, the output of the second precooling refrigeration compressor and the 3rd precooling refrigeration compressor is connected with high-efficiency oil separator, the cold-producing medium output of high-efficiency oil separator links to each other with described evaporative condenser, and the oily output of described high-efficiency oil separator is connected with the second precooling refrigeration compressor with the described first precooling refrigeration compressor.
Preferably, in the above-mentioned multistage cooling refrigeration system, also be connected with pressure-control valve at the cold-producing medium output of described second precooling refrigeration compressor and the described second precool heat exchanger device.
Preferably, in the above-mentioned multistage cooling refrigeration system, the described first precool heat exchanger device and the second precool heat exchanger device are plate type heat exchanger.
Preferably, in the above-mentioned multistage cooling refrigeration system, described the 3rd precool heat exchanger device is a plate type heat exchanger.
From technique scheme as can be seen, adopt multistage cooling in the multistage cooling refrigeration system that the utility model embodiment provides, water is through repeatedly cooling, cold-producing medium can be shunted simultaneously to heat exchanger at different levels and carry out heat exchange, refrigeration is than single refrigeration good effect of heat exchange, good energy-conserving effect, and refrigerating efficiency height, the different model of can arranging in pairs or groups of every grade precooling refrigeration compressor and precool heat exchanger device in addition, can satisfy different refrigeration requirements like this, but also can select to open the progression of cooling system according to the temperature height that supplies water.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
The structural representation of the multistage cooling refrigeration system that Fig. 1 provides for the utility model embodiment.
The specific embodiment
For quote and know for the purpose of, below label in the accompanying drawing is explained as follows:
1, feed pipe, 2, evaporative condenser, 3, the first precool heat exchanger device, 4, the second precool heat exchanger device, 5, the first precooling refrigeration compressor, 6, the second precooling refrigeration compressor, 7, water circulating pump, 8, the insulation water storage box, 9, the 3rd precool heat exchanger device, 10, high pressure receiver, 11, high-efficiency oil separator, 12, oil container, 13, suspended body flowmeter, A, the first precool heat exchanger device water inlet end, B, the first precool heat exchanger device water side, C, the first precool heat exchanger device cold-producing medium flows into end, D, the first precool heat exchanger device cold-producing medium outflow end, E, the second precool heat exchanger device water inlet end, F, the second precool heat exchanger device water side, H, the second precool heat exchanger device cold-producing medium flows into end, G, the second precool heat exchanger device cold-producing medium outflow end, I, the 3rd precool heat exchanger device water inlet end, J, the 3rd precool heat exchanger device water side, K, the 3rd precool heat exchanger device cold-producing medium flows into end, L, the 3rd precool heat exchanger device cold-producing medium outflow end.
Below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
The utility model embodiment discloses a kind of multistage cooling refrigeration system, only adopts the single-stage refrigeration to solve existing refrigeration system, and refrigeration modes is single, the problem of poor refrigerating efficiency.
A kind of multistage cooling refrigeration system, as shown in Figure 1, feed pipe 1 is connected with evaporative condenser 2, feed pipe 1 supplies water in evaporative condenser 2, the water side of evaporative condenser 2 is connected with the first precool heat exchanger device water inlet end A, the water outlet pipe end of insulation water storage box 8 is provided with water circulating pump 7, water circulating pump 7 is connected with the second precool heat exchanger device water inlet end E by pipeline, the first precool heat exchanger device water side B is connected with the second precool heat exchanger device water inlet end E, the second precool heat exchanger device water side F is connected with the 3rd precool heat exchanger device water inlet end I, and the 3rd precool heat exchanger device water side J is connected with insulation water storage box 8.
The cold-producing medium efferent duct of evaporative condenser 2 is connected with high pressure receiver 10, the arm of the efferent duct of high pressure receiver 10 flows into respectively at the first precool heat exchanger device cold-producing medium holds C, second precool heat exchanger device cold-producing medium inflow end H, the 3rd precool heat exchanger device cold-producing medium to flow into end K and be connected, and the first precool heat exchanger device cold-producing medium outflow end D, the second precool heat exchanger device cold-producing medium outflow end G are connected respectively at the first precooling refrigeration compressor 5, the second precooling refrigeration compressor 6.
The first precooling refrigeration compressor 5 is connected with high-efficiency oil separator 11 by pipeline with the second precooling refrigeration compressor 6, high-efficiency oil separator 11 is connected with evaporative condenser 2, and the output of the oil container 12 that is connected with high-efficiency oil separator 11 is connected by the electronics oil level switch of arm with the first precooling refrigeration compressor 5, the second precooling refrigeration compressor 6.
The course of work of the described multistage cooling refrigeration system of the utility model embodiment is as follows: the cooling flow process of water: feed pipe 1 supplies water and gives evaporative condenser 2, also cooling water supply the cold-producing medium of evaporative condenser 2 in the cooling refrigeration system, water through evaporative condenser 2 enters in the first precool heat exchanger device 3 by the first precool heat exchanger device water inlet end A, carry out heat exchange with the cold-producing medium in the first precool heat exchanger device 3, coolant-temperature gage through the first precool heat exchanger device 3 descends, water after the heat exchange flows out from the first precool heat exchanger device water side B, enter the second precool heat exchanger device, 4 backs through the second precool heat exchanger device water inlet end E and carry out heat exchange with cold-producing medium, the temperature of water further descends in this process, water after the cooling enters the 3rd precool heat exchanger device 9 by the 3rd precool heat exchanger device water inlet end I, water and liquid refrigerant carry out heat exchange, a step descends the temperature of water again, the water of last low temperature enters the insulation water storage box by the 3rd precool heat exchanger device water side J, the temperature of water is through 4 coolings in the whole process, and cooling extent is big.
The cold-producing medium workflow: through the first precooling refrigeration compressor 5 and the second precooling refrigeration compressor, 6 refrigerant compressed is the gaseous refrigerant of HTHP, cold-producing medium after the compression enters in the evaporative condenser 2 through after the high-efficiency oil separator 11, the cold-producing medium cooling is middle temperature high pressure liquid refrigerant, enter the first precooling refrigerated heat exchanger 3 through behind the high pressure receiver 11 through each arm, in the second precooling refrigerated heat exchanger 4 and the 3rd precooling refrigerated heat exchanger 9, carry out heat exchange with wherein water respectively, specifically: behind the middle temperature high-pressure refrigerant process throttling arrangement is the liquid refrigerant of low-temp low-pressure, flow into end C from the first precool heat exchanger device cold-producing medium and enter the first precool heat exchanger device 3, cold-producing medium flows out from the first precool heat exchanger device cold-producing medium outflow end D after entering 3 heat exchange of the first precool heat exchanger device, enters the first precooling refrigeration compressor 5 and compresses; In like manner cold-producing medium flows into the water heat exchange of holding in H and the second precool heat exchanger device cold-producing medium outflow end G realization and the second precool heat exchanger device 4 by the second precool heat exchanger device cold-producing medium, finally enters in the second precooling refrigeration compressor 6 and compresses; Low-temperature low-pressure refrigerant flows into end K by the 3rd precool heat exchanger device cold-producing medium and enters the 3rd precool heat exchanger device 9 and carry out heat exchange, enter in the second precooling refrigeration compressor 6 by the 3rd precool heat exchanger device cold-producing medium outflow end L and to compress, enter next kind of refrigeration cycle.
Between the second precool heat exchanger device water side F and the 3rd precool heat exchanger device water inlet end I, also be provided with suspended body flowmeter 13 in the described multistage cooling refrigeration system of the foregoing description, be used to measure the flow of water.
On the pipeline between the second precool heat exchanger device cold-producing medium outflow end G and the second precooling refrigeration compressor 6, also be provided with the PM1+CVP pressure-control valve in the described multistage cooling refrigeration system of the foregoing description, be used to control evaporating pressure, make the second precool heat exchanger device 4 be unlikely to freeze.
The first precool heat exchanger device and the second precool heat exchanger device in the foregoing description can be plate type heat exchanger, and the 3rd precool heat exchanger device is a plate type heat exchanger.
Adopt multistage cooling in the multistage cooling refrigeration system that the utility model embodiment provides, water is through repeatedly cooling, cold-producing medium can be shunted simultaneously to heat exchanger at different levels and carry out heat exchange, refrigeration is than single refrigeration good effect of heat exchange, good energy-conserving effect, and refrigerating efficiency height, the different model of can arranging in pairs or groups of every grade precooling refrigeration compressor and precool heat exchanger device in addition, can satisfy different refrigeration requirements like this, but also can select to open the progression of cooling system according to the temperature height that supplies water.
Each embodiment adopts the mode of going forward one by one to describe in this specification, and what each embodiment stressed all is and the difference of other embodiment that identical similar part is mutually referring to getting final product between each embodiment.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the utility model.Multiple modification to these embodiment will be conspicuous concerning those skilled in the art, and defined herein General Principle can realize under the situation that does not break away from spirit or scope of the present utility model in other embodiments.Therefore, the utility model will can not be restricted to these embodiment shown in this article, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.
Claims (4)
1. multistage cooling refrigeration system, it is characterized in that, comprising: evaporative condenser, the first precool heat exchanger device, the second precool heat exchanger device, the 3rd precool heat exchanger device, the first precooling refrigeration compressor, the second precooling refrigeration compressor, insulation water storage box, water circulating pump, high pressure receiver, high-efficiency oil separator;
The water side of described evaporative condenser is connected with the described first precool heat exchanger device water inlet end, the water side of described first preheating heat exchanger is connected with the water inlet end of the second precool heat exchanger device, the water side of the described second precool heat exchanger device is connected with the water inlet end of described the 3rd precool heat exchanger device, the water side of described the 3rd precool heat exchanger device is connected with the water inlet of described insulation water storage box, and the delivery port of described insulation water storage box is connected by the water inlet of described water circulating pump with the described second precool heat exchanger device;
The refrigerant outlet of described evaporative condenser is connected with high pressure receiver, described efficient liquid reservoir is by arm and the described first precool heat exchanger device, the cold-producing medium of the second precool heat exchanger device and the 3rd preheating heat exchanger flows into end and is connected, the cold-producing medium outflow end of the described first precool heat exchanger device is connected with the described first precooling refrigeration compressor, the cold-producing medium outflow end of described second precool heat exchanger device and the 3rd precool heat exchanger device is connected with the described second precooling refrigeration compressor, the described first precooling refrigeration compressor, the output of the second precooling refrigeration compressor and the 3rd precooling refrigeration compressor is connected with high-efficiency oil separator, the cold-producing medium output of high-efficiency oil separator links to each other with described evaporative condenser, and the oily output of described high-efficiency oil separator is connected with the second precooling refrigeration compressor with the described first precooling refrigeration compressor.
2. multistage cooling refrigeration system according to claim 1 is characterized in that, also is connected with pressure-control valve at the cold-producing medium output of described second precooling refrigeration compressor and the described second precool heat exchanger device.
3. will go 2 described multistage cooling refrigeration systems according to right, it is characterized in that, the described first precool heat exchanger device and the second precool heat exchanger device are plate type heat exchanger.
4. multistage cooling refrigeration system according to claim 3 is characterized in that, described the 3rd precool heat exchanger device is a plate type heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201146686U CN201662271U (en) | 2010-02-11 | 2010-02-11 | Multi- stage cooling and refrigerating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201146686U CN201662271U (en) | 2010-02-11 | 2010-02-11 | Multi- stage cooling and refrigerating system |
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| Publication Number | Publication Date |
|---|---|
| CN201662271U true CN201662271U (en) | 2010-12-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201146686U Expired - Fee Related CN201662271U (en) | 2010-02-11 | 2010-02-11 | Multi- stage cooling and refrigerating system |
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| Country | Link |
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| CN (1) | CN201662271U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105211267A (en) * | 2015-09-17 | 2016-01-06 | 北京市农林科学院 | Multistage pre-cooling machine |
-
2010
- 2010-02-11 CN CN2010201146686U patent/CN201662271U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105211267A (en) * | 2015-09-17 | 2016-01-06 | 北京市农林科学院 | Multistage pre-cooling machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: ZHONGJIYUANXIONG ENERGY STORAGE TECHNOLOGY CO., LT Free format text: FORMER OWNER: CHONGQING YUANXIONG REFRIGERATION COMPLETE SET OF EQUIPMENT CO.LTD Effective date: 20110331 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 401120 LAND BLOCK NO. A10-1, ECONOMIC DEVELOPMENT PARK, BEIBU NEW DISTRICT, CHONGQING CITY TO: 401520 CORE AREA OF HECHUAN INDUSTRIAL PARK, CHONGQING CITY |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20110331 Address after: 401520 Hechuan Chongqing Industrial Park core area Patentee after: Chongqing Yuanxiong Complete Refrigeration Equipment Co., Ltd. Address before: Northern New Chongqing 401120 ring A10-1 block Patentee before: Chongqing Yuanxiong Refrigeration Complete Set of Equipment Co.Ltd |
|
| C56 | Change in the name or address of the patentee |
Owner name: CHINA ICEPOWER ENERGY TECHNOLOGY CO., LTD. Free format text: FORMER NAME: ZHONGJIYUANXIONG ENERGY STORAGE TECHNOLOGY CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 401520 Hechuan Chongqing Industrial Park core area Patentee after: China Icepower Energy Technology Co., Ltd. Address before: 401520 Hechuan Chongqing Industrial Park core area Patentee before: Chongqing Yuanxiong Complete Refrigeration Equipment Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101201 Termination date: 20170211 |