CN201903211U - Refrigeration system - Google Patents
Refrigeration system Download PDFInfo
- Publication number
- CN201903211U CN201903211U CN2010206957216U CN201020695721U CN201903211U CN 201903211 U CN201903211 U CN 201903211U CN 2010206957216 U CN2010206957216 U CN 2010206957216U CN 201020695721 U CN201020695721 U CN 201020695721U CN 201903211 U CN201903211 U CN 201903211U
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- Prior art keywords
- valve
- cooling water
- cooling
- circulation loop
- chilled water
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Abstract
The utility model discloses a refrigeration system which comprises a refrigeration circulation loop, a chilled water circulation loop, and a cooling water circulation loop, wherein the refrigeration circulation loop at least includes an evaporator and a condenser; the evaporator is connected with the chilled water circulation loop; the condenser is connected with the cooling water circulation loop; and the cooling water circulation loop is connected with the chilled water circulation loop. By adopting the communicated structure between the chilled water circulation loop and the cooling water circulation loop, the refrigeration system can adjust the conversion utilization rate between the cooing water and the chilled water at any moment along with the change of seasonal temperature, thereby effectively solving the defect that the flow of the cooling water is not enough due to high temperature in summer and also realizing the use of the cooling water instead of the chilled water in winter; and the refrigeration electricity is saved to reduce the energy consumption and achieve the optimal energy efficiency ratio.
Description
Technical field
The utility model relates to a kind of large-scale refrigerating system, relates in particular to the system that cold water is used instead between the cooling water circulation loop and chilled water closed circuit in this refrigeration system.
Background technology
Refrigeration system is compressed into cold-producing medium to send in the evaporimeter after the liquid state by compressor carries out heat exchange with chilled water, and with the chilled water refrigeration, chilled water pump is delivered to chilled water in the cooling coil of each air blower, blows the purpose that cold wind reaches cooling by blower fan.Cold-producing medium after compression discharges heat in condenser, carry out heat exchange with cooling circulating water, and the cooling water that will have a heat by cooling water pump is delivered on the cooling tower and by fan it cooled off, and heat is dispersed in the atmosphere goes.
Therefore refrigeration system must be equipped with chilled water closed circuit and cooling water circulation loop.In the prior art, chilled water closed circuit and cooling water circulation loop are two independently closed cycle systems.The chilled water closed circuit is made up of chilled water pump and chilled water pipeline.Send into the chilled water pipeline from the chilled water that evaporimeter flows out by the chilled water pump pressurization, each takes away heat in the workshop with the coil pipe of point by the workshop, makes the temperature decline in the workshop.Simultaneously, the heat in the workshop is frozen water and absorbs, and the temperature of chilled water is raise.The recirculated water that temperature has raise becomes chilled water again behind evaporimeter, so repeatedly circulation.Cooling water circulation loop is made up of cooling water pump, cooling water pipeline and cooling tower.Condenser is the higher refrigerant cools of temperature in carrying out hot friendship process, and condenser discharges a large amount of heats simultaneously.This heat water that is cooled absorbs, and cooling water temperature is raise.Cooling water pump is pressed into cooling tower with the cooling water that is heated, and makes it to carry out heat exchange with atmosphere in cooling tower, and then the cooling water of cooling is sent back to freezing unit.The heat that freezing main frame discharges has been taken away in so constantly circulation.
The refrigeration system of this structure exists cooling water not enough at high temperature season, still need be in the kind of refrigeration cycle process at the low temperature season chilled water, but this moment, cooling water temperature reaches chilled water temperature.There is the high energy consumption shortcoming in the such working method of refrigeration system at low temperature season, and has the not enough shortcoming of refrigeration at high temperature season.
Summary of the invention
The technical problems to be solved in the utility model provides low, the simple in structure refrigeration system of a kind of low temperature season energy consumption for cooling.
For solving the problems of the technologies described above, the utility model adopts following technical scheme: this refrigeration system comprises refrigeration cycle, the chilled water closed circuit, cooling water circulation loop, at least comprise evaporimeter and condenser in the described refrigeration cycle, described evaporimeter is connected with the chilled water closed circuit, described condenser is connected with cooling water circulation loop, described cooling water circulation loop comprises the cooling pond at least, cooling tower and heat exchanger I, described cooling pond is connected with heat exchanger I by pipeline, described heat exchanger I is connected with cooling tower by pipeline, described chilled water closed circuit is provided with heat exchanger II at least, described heat exchanger II is connected with evaporimeter by pipeline, described cooling pond is connected with heat exchanger II by pipeline, described heat exchanger II is connected with cooling tower by pipeline, is provided with cooling water pump I at least on the pipeline between described cooling pond and the heat exchanger II.There has been the connecting pipe between cooling pond and the heat exchanger II just can use cooling water as chilled water in the microthermal climate in winter, therefore under the low temperature environment in winter, the water temperature of outdoor cooling pond has reached the chilled water operating temperature, so just, can save the refrigeration electricity consumption, play the effect that cuts down the consumption of energy.
As of the present utility model preferred, pipeline also is connected with condenser between described cooling pond and the heat exchanger II.In summer high temperature weather, can quicken the heat exchange amount of condenser like this, have the not enough problem of refrigeration thereby effectively solve high temperature season.
The utility model adopts technique scheme: refrigeration system has the structure of intercommunication between chilled water closed circuit and the cooling water circulation loop, can adjust the rate of using instead between cooling water and the chilled water at any time with the variation of seasonal temperature, can effectively solve the shortcoming of summer high temperature weather cooling water flow deficiency thus, can also realize in the winter time that cooling water replaces chilled water to use, save the refrigeration electricity consumption, to cut down the consumption of energy, reach best Energy Efficiency Ratio.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is further described in detail.
Fig. 1 is the structural representation of a kind of refrigeration system of the utility model.
The specific embodiment
Refrigeration system comprises refrigeration cycle, chilled water closed circuit and cooling water circulation loop.Refrigeration cycle is made up of condenser 1, throttling arrangement, evaporimeter 2 and compressor, the inlet that condenser 1 is used to import cold-producing medium is connected with the liquid outlet of compressor by pipeline, and the liquid outlet of condenser 1 is connected with the cold-producing medium input port of evaporimeter 2 by throttling arrangement; The liquid outlet of evaporimeter 2 is connected with the cold-producing medium inlet of compressor by pipeline.
Chilled water closed circuit and cooling water circulation loop are attached on the refrigeration cycle and have characteristic of simple structure.As shown in Figure 1, the chilled water closed circuit comprises flowing water Valve I 193, heat exchanger II 4, valve VII5, chilled water pump 6, valve V 7, backwater valve I 8, valve VIII9, expansion tank 10.Flowing water Valve I 193 1 ends are connected on the evaporimeter 2 by pipeline, and the other end is connected with heat exchanger II 4 by pipeline; Heat exchanger II 4 is connected with chilled water pump 6 by valve VII5, and the output of chilled water pump 6 is connected with valve V 7 by pipeline, and valve V 7 is connected with backwater valve I 8 by pipeline, and backwater valve I 8 is connected with evaporimeter 2 by pipeline; Expansion tank 10 is connected on the water inlet end of valve VII5 by valve VIII9.Cooling water circulation loop comprises valve IV11, valve II 12, cooling water pump II 13, cooling pond 14, cooling tower 15, flowing water Valve II 16, heat exchanger I 17, cooling water pump I 18, valve I 19, valve III20.Cooling water pump II 13 and cooling water pump I 18 are installed on the cooling pond 14, and cooling water pump II 13 is connected with valve II12 by pipeline, and valve II 12 is connected with valve IV11 by pipeline again, and valve IV11 is installed in the liquid feeding end of condenser 1.Cooling water pump I 18 is connected with valve I 19 by pipeline, and valve I 19 is connected with valve II12, valve IV11, valve III20 by pipeline, is in connected state between valve I 19, valve II 12, valve III20, the valve IV11.Valve III20 is connected by the liquid feeding end of pipeline with backwater valve I 8.Condenser 1 outlet end connects flowing water Valve II 16 by pipeline, and flowing water Valve II 16 connects cooling tower 15 by pipeline.Be connected with heat exchanger I 17 on the pipeline between cooling water pump II 13 and the valve II 12, the outlet end of heat exchanger I 17 is connected with cooling tower 15 by pipeline; Also connect valve VI on this pipeline, the valve VI other end is connected with the liquid feeding end of valve VII5.
The pipeline and the valve VI that are made up of cooling water pump I 18, valve I 19, valve III20 connect between chilled water closed circuit and cooling water circulation loop, make to link together between cooling pond 14 and the heat exchanger II 4, therefore cooling water flow is gone in the chilled water circulation line.
Using this refrigeration system to call cooling water according to environment temperature enters in the chilled water circulation line.For example when using summer, refrigeration cycle is normally opened; Chilled water closed circuit and cooling water circulation loop place, open valve I 19, valve IV11, valve V 7, valve VII5, valve VIII9, valve-off II 12, valve III20, valve VI start cooling water pump II 13, cooling water pump I 18, chilled water pump 6.Cooling water from cooling pond 14 enters heat exchanger I 17 from cooling water pump II 13, and cooling water flows in the cooling tower 15 from heat exchanger I 17 other ends then; Cooling water also enters in the condenser 1 after cooling water pump I 18 flows through valve I 19, valve IV11, and cooling water flows in the cooling tower 15 from the outlet end of condenser 1 then; The cooling water that flows in the cooling tower 15 flows back to cooling pond 14 at last.The chilled water flowing water Valve I 193 that flows through after evaporimeter 2 output enters heat exchanger II 4, and chilled water flows back in the evaporimeter 2 by flow through valve V 7 and backwater valve I 8 of chilled water pump 6 then.Relatively independent between cooling water circulation loop and the chilled water closed circuit like this.Because cooling water circulation loop has increased cooling water pump I 18, has increased the cooling water flow of cooling water circulation loop, therefore can satisfy the refrigeration requirement under the summer high temperature condition.
When spring and autumn used, refrigeration cycle was normally opened; Chilled water closed circuit and cooling water circulation loop place open valve II 12, valve IV11, valve V 7, valve VII5, valve VIII9, and valve-off I19, valve III20, valve VI start cooling water pump II 13 and chilled water pump 6.Cooling water from cooling pond 14 flows to valve II12 from cooling water pump II 13 outputs, flows to valve IV11 again, and cooling water flow through flowing in the cooling tower 15 by pipeline after the heat exchange, flows back to cooling pond 14 from cooling tower 15 through condenser 1 at last.The cooling water heat exchanger I 17 that also flows through, last cooling water also flows to cooling tower 15, and cooling water flows back to cooling pond 14 from cooling tower 15.The chilled water flowing water Valve I 193 that flows through after evaporimeter 2 output enters heat exchanger II 4, and chilled water flows back in the evaporimeter 2 by flow through valve V 7 and backwater valve I 8 of chilled water pump 6 then.Still relatively independent between cooling water circulation loop and the chilled water closed circuit like this.The relative summer environment temperature of environment temperature in autumn is low, therefore only needs a cooling water pump just can satisfy the cooling water flow demand of cooling water circulation loop.
In the winter time, refrigeration cycle is closed; Chilled water closed circuit and cooling water circulation loop place open valve II 12, valve III20, valve VI, close I, valve IV11, valve V 7, valve VII5, valve VIII9, only start cooling water pump II 13.The cooling water flow of cooling pond 14 enters evaporimeter 2 and carries out heat exchange behind valve II 12, valve III20, backwater valve I 8, the cooling water that heats up flows out from condenser 1, flow through and enter heat exchanger II 4 behind the flowing water Valve I 193, cooling water flows in the cooling tower 15 through valve VI, and last cooling water flows back in the cooling pond 14.Just set up connected relation between cooling water circulation loop and the chilled water closed circuit like this, make that cooling water can be in the cocycle of chilled water closed circuit.Because winter, outdoor temperature was lower, make that the water temperature in the cooling pond 14 is lower, therefore can directly use as chilled water.So just do not need to open refrigeration cycle, thus energy efficient.
Claims (2)
1. refrigeration system, this refrigeration system comprises refrigeration cycle, the chilled water closed circuit, cooling water circulation loop, at least comprise evaporimeter (2) and condenser (1) in the described refrigeration cycle, described evaporimeter (2) is connected with the chilled water closed circuit, described condenser (1) is connected with cooling water circulation loop, described cooling water circulation loop comprises cooling pond (14) at least, cooling tower (15) and heat exchanger I (17), described cooling pond (14) is connected with heat exchanger I (17) by pipeline, described heat exchanger I (17) is connected with cooling tower (15) by pipeline, described chilled water closed circuit is provided with heat exchanger II (4) at least, described heat exchanger II (4) is connected with evaporimeter (2) by pipeline, it is characterized in that: described cooling pond (14) are connected with heat exchanger II (4) by pipeline, described heat exchanger II (4) is connected with cooling tower (15) by pipeline, is provided with cooling water pump I (18) at least on the pipeline between described cooling pond (14) and the heat exchanger II (4).
2. according to the described refrigeration system of claim 1, it is characterized in that: pipeline also is connected with condenser (1) between described cooling pond (14) and the heat exchanger II (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206957216U CN201903211U (en) | 2010-12-29 | 2010-12-29 | Refrigeration system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206957216U CN201903211U (en) | 2010-12-29 | 2010-12-29 | Refrigeration system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201903211U true CN201903211U (en) | 2011-07-20 |
Family
ID=44273803
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206957216U Expired - Lifetime CN201903211U (en) | 2010-12-29 | 2010-12-29 | Refrigeration system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201903211U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102767985A (en) * | 2012-07-24 | 2012-11-07 | 江苏申久化纤有限公司 | Device for introducing cooling water to chilled water circulation system in polyester device |
| CN103743182A (en) * | 2013-12-27 | 2014-04-23 | 上海烟草集团有限责任公司 | Method and device for cooling cigarette making machine |
-
2010
- 2010-12-29 CN CN2010206957216U patent/CN201903211U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102767985A (en) * | 2012-07-24 | 2012-11-07 | 江苏申久化纤有限公司 | Device for introducing cooling water to chilled water circulation system in polyester device |
| CN103743182A (en) * | 2013-12-27 | 2014-04-23 | 上海烟草集团有限责任公司 | Method and device for cooling cigarette making machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110720 |