CN203478687U - Refrigeration system - Google Patents
Refrigeration system Download PDFInfo
- Publication number
- CN203478687U CN203478687U CN201320461733.6U CN201320461733U CN203478687U CN 203478687 U CN203478687 U CN 203478687U CN 201320461733 U CN201320461733 U CN 201320461733U CN 203478687 U CN203478687 U CN 203478687U
- Authority
- CN
- China
- Prior art keywords
- refrigeration
- condenser
- control valve
- compressor
- evaporator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000005057 refrigeration Methods 0.000 title claims abstract description 78
- 230000006835 compression Effects 0.000 claims abstract description 26
- 238000007906 compression Methods 0.000 claims abstract description 26
- 239000003507 refrigerant Substances 0.000 claims abstract description 22
- 239000007788 liquid Substances 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims 5
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 6
- 238000009833 condensation Methods 0.000 description 4
- 230000005494 condensation Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 238000009740 moulding (composite fabrication) Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Landscapes
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The utility model discloses a refrigeration system which comprises a compression refrigerating loop adopting compression-type refrigeration, a natural cold energy refrigerating loop adopting the natural cold energy for refrigeration, and a control valve selectively controlling the former two loops to work, wherein the compression refrigerating loop comprises a compressor, a condenser, a throttle valve and an evaporator; the natural cold energy refrigerating loop comprises a condenser, a refrigerant pump and an evaporator, the refrigerant pump is arranged between the condenser and the evaporator and used for delivering a refrigerant in the condenser to the evaporator for supplying refrigerant circulating pressure. Therefore, when the outer door temperature is relatively low, the refrigeration system works while the compressor and the throttle valve are in idle, so that the system energy consumption is reduced; the refrigerant pump is used for providing circulating pressure for the refrigerant, and the natural cold energy is adopted to realize the operation of the refrigeration system.
Description
Technical field
The utility model relates to a kind of refrigeration system, relates in particular to a kind of refrigeration system that can utilize natural cold-energy to realize refrigeration.
Background technology
The refrigeration principle of refrigeration machine is that compressor sucks the cold-producing medium from evaporimeter lower pressure out, make it after pressure raises to send into condenser, in condenser, be condensed into the cold-producing medium of high normal pressure and temperature, after choke valve throttling, become the refrigerant liquid of low-temp low-pressure, then send into evaporimeter, heat absorption evaporation in evaporimeter and become the refrigerant vapour that pressure is lower, send into again the entrance of compressor, thereby complete kind of refrigeration cycle.
Current refrigeration system is normally carried out type selection according to the outdoor environment temperature in summer, when spring, autumn or winter, outdoor temperature was lower, condensing pressure can reduce, if now still have the higher refrigeration that needs of part indoor environment temperature, need to close condensation fan to improve condensing pressure, could meet the pressure differential that choke valve is imported and exported, choke valve just can be opened, but the raising of condensing pressure can cause compressor, power consumption increases; If do not close condensation fan, choke valve will be in closure state, and kind of refrigeration cycle will be interrupted, and refrigeration system cannot be worked.
Utility model content
The technical problem that the utility model solves is: provide a kind of when outdoor temperature is lower the refrigeration system without choke valve participation work, the reduction of condensing pressure can not exerted an influence to the normal operation of refrigeration system.
For reaching this object, the utility model by the following technical solutions:
A refrigeration system, comprising:
Adopt the compression refrigeration circuits of compression-type refrigeration;
Adopt the natural cold-energy refrigerating circuit of natural cold-energy refrigeration;
And the control valve of optionally controlling described compression refrigeration circuits or described natural cold-energy refrigerating circuit work;
Described compression refrigeration circuits comprises compressor, condenser, choke valve and evaporimeter;
Described natural cold-energy refrigerating circuit comprises condenser, refrigerated medium pump and evaporimeter, described refrigerated medium pump is arranged between described condenser and described evaporimeter, for the cold-producing medium of described condenser being transported in described evaporimeter and providing pressure for refrigerant circulation.
As a kind of preferred technical scheme, the entrance of described refrigerated medium pump is connected in the entrance of described choke valve, and described cold-producing medium delivery side of pump is connected in the entrance of described evaporimeter.
As a kind of preferred technical scheme, in described natural cold-energy refrigerating circuit, be provided with compressor parallel branch, described compressor parallel branch is provided with the 3rd control valve.
As a kind of preferred technical scheme, described control valve comprises the first control valve that is separately positioned on choke valve and exports, the second control valve of described refrigerated medium pump outlet and the 4th control valve of described compressor outlet.
As a kind of preferred technical scheme, between described condenser and described refrigerated medium pump, be provided with reservoir.
As a kind of preferred technical scheme, between described refrigerated medium pump and described reservoir, be provided with device for drying and filtering.
As a kind of preferred technical scheme, between described choke valve and described evaporimeter, be provided with decompressor.
The beneficial effects of the utility model are: when outdoor temperature is lower, refrigeration system operation does not need compressor and choke valve work, reduced system energy consumption, by refrigerated medium pump, provide circulating pressure for cold-producing medium, utilize natural cold-energy to realize refrigeration, make the variation of condensing pressure can not affect the operation of refrigeration system.
Accompanying drawing explanation
According to drawings and embodiments the utility model is described in further detail below.
Fig. 1 is refrigerant system configurations schematic diagram described in the utility model.
Fig. 2 is refrigeration system compression refrigeration circuits running status schematic diagram described in the utility model (in figure, solid line is partly compression refrigeration circuits).
Fig. 3 is refrigeration system natural cold-energy refrigerating circuit running status schematic diagram described in the utility model (in figure, solid line is partly natural cold-energy refrigerating circuit).
In figure:
1, compressor; 2, condenser; 3, choke valve; 4, evaporimeter; 5, reservoir; 6, device for drying and filtering; 7, refrigerated medium pump; 8, compressor parallel branch; 9, decompressor; 10, the first control valve; 11, the second control valve; 12, the 3rd control valve; 13, the 4th control valve; 14, stop valve.
The specific embodiment
Below in conjunction with accompanying drawing and by the specific embodiment, further illustrate the technical solution of the utility model.
As shown in Figures 1 to 3, in the present embodiment, a kind of refrigeration system described in the utility model, comprising: the compression refrigeration circuits that adopts compression-type refrigeration; Adopt the natural cold-energy refrigerating circuit of natural cold-energy refrigeration; And the control valve of optionally controlling described compression refrigeration circuits or described natural cold-energy refrigerating circuit work; Described compression refrigeration circuits comprises compressor 1, condenser 2, choke valve 3 and evaporimeter 4; Described natural cold-energy refrigerating circuit comprises condenser 2, refrigerated medium pump 7 and evaporimeter 4, described refrigerated medium pump 7 is arranged between described condenser 2 and described evaporimeter 4, for the cold-producing medium of described condenser 2 being transported in described evaporimeter 4 and providing pressure for refrigerant circulation.
When the refrigerating circuit of the higher operation natural cold-energy of outdoor temperature cannot meet refrigeration demand, need to move compression refrigeration circuits, its process of refrigerastion is: cold-producing medium becomes the refrigerant liquid of high normal pressure and temperature after compressor 1 compression, condenser 2 condensations, through choke valve 3 throttling expansions, obtain low-temperature low-pressure refrigerant, enter again evaporimeter 4 and freeze, after refrigeration, again enter compressor 1 and compress and realize kind of refrigeration cycle.
When outdoor temperature is lower, need to close condensation fan to improve condensing pressure, could meet the pressure differential that choke valve is imported and exported, choke valve just can be opened, but the raising of condensing pressure can cause compressor, power consumption increases, if still adopt compression refrigeration circuits to carry out refrigeration, can produce energy waste, also may there is the situation that the bad even kind of refrigeration cycle of refrigeration is interrupted simultaneously, therefore, can adopt in the case natural cold-energy refrigerating circuit to freeze.
Natural cold-energy refrigerating circuit process of refrigerastion is: the cold-producing medium in condenser 2 and outdoor natural cold-energy carry out heat exchange, temperature reduces pressure simultaneously and also reduces, by refrigerated medium pump 7, the cold-producing medium of low temperature is sent in evaporimeter 4 and freezed, the circulation that refrigerated medium pump 7 is cold-producing medium simultaneously provides circulating pressure.
In natural cold-energy refrigerating circuit process of refrigerastion, in order to prevent that cold-producing medium from flowing in compressor 1, need to stop valve 14 be set in compressor 1 porch, thereby when freezing, natural cold-energy refrigerating circuit make cold-producing medium can not enter in compressor 1 by stop valve 14, cold-producing medium total amount in loop can not reduced, thereby can not affect refrigeration.
As a kind of preferred technical scheme, natural cold-energy refrigerating circuit and compression refrigeration circuits adopt common condenser 2 and evaporimeter 4.
Thereby natural cold-energy refrigerating circuit and compression refrigeration circuits also can be used separately the separate refrigerating circuit of condenser 2 and evaporimeter 4 each self-formings separately certainly; Now in whole refrigeration system, there is the first condenser, the second condenser, the first evaporimeter and the second evaporimeter, compressor, the first condenser, choke valve and the first evaporimeter form compression refrigeration circuits, the second condenser, refrigerated medium pump and the second evaporimeter form natural cold-energy refrigerating circuit, and natural cold-energy refrigerating circuit and compression refrigeration circuits be independent operating separately.
Further, the entrance of described refrigerated medium pump 7 is connected in the entrance of described choke valve 3, and the outlet of described refrigerated medium pump 7 is connected in the entrance of described evaporimeter 4.For described choke valve 3 is isolated from natural cold-energy refrigerating circuit.
Further, in natural cold-energy refrigerating circuit, be provided with compressor parallel branch 8, on described compressor parallel branch 8, be provided with the 3rd control valve 12.
Compressor parallel branch 8 is arranged on compressor 1 two ends, for described compressor 1 is isolated from natural cold-energy refrigerating circuit, and compressor parallel branch 8 and condenser 2, refrigerated medium pump 7 and the refrigerating circuit of the common composition natural cold-energy of evaporimeter 4.The opening and closing of the 3rd control valve 12 is controlled compressor parallel branch 8 and whether is participated in refrigeration.
Further, described control valve comprises the first control valve 10, the second control valve 11 of described refrigerated medium pump 7 outlets and the 4th control valve 12 of described compressor 1 outlet that is separately positioned on choke valve 3 and exports.On mutually parallel choke valve branch road and refrigerated medium pump branch road, the first control valve 10 and the second control valve 11 are set respectively, whether the first control valve 10 participates in kind of refrigeration cycle for controlling choke valve 3, whether the second control valve 11 participates in kind of refrigeration cycle for controlling refrigerated medium pump 7, and whether the 4th control valve 13 participates in kind of refrigeration cycle for controlling compressor 1.
Preferably, in described natural cold-energy refrigerating circuit, between condenser 2 and refrigerated medium pump 7, be also provided with reservoir 5.
Further, in compression refrigeration circuits, between choke valve 3 and evaporimeter 4, be provided with for collecting and utilize the decompressor 9 of the choke pressure energy of choke valve 3 generations, decompressor 9 can further be used the choke pressure producing in choke valve 3 throttling expansion processes, improves the efficiency of system.
Introduce above-mentioned refrigeration system operation method below, it is by the control of control valve optionally being realized to compression refrigeration circuits or natural cold-energy refrigerating circuit is freezed generally.Wherein, the stable temperature reference that return air design temperature is indoor needs; Set model inversion temperature is for generally lower than 5 ℃ of return air design temperatures.
Detailed process is:
As shown in Figure 2; When outdoor temperature is during higher than set model inversion temperature, compression refrigeration circuits refrigeration.The first control valve 10 is opened, the second control valve 11 is closed, the 3rd control valve 12 is closed, the 4th control valve 13 is opened, choke valve 3 work, cold-producing medium enters in evaporimeter 4 after choke valve 3 throttling expansions, compressor 1 work, cold-producing medium enters condenser 2 through compressor 1 boil down to high temperature and high pressure gas, realizes compression refrigeration circuits operation.
As shown in Figure 3: when outdoor temperature is during lower than set model inversion temperature, natural cold-energy refrigerating circuit refrigeration.The first control valve 10 is closed, the second control valve 11 is opened, the 3rd control valve 12 is opened, the 4th control valve 13 is closed, choke valve 3 quits work, refrigerated medium pump 7 is directly sent into cold-producing medium in evaporimeter 4, compressor 1 quits work, cold-producing medium directly enters condenser 2 by evaporimeter 4, realizes natural cold-energy refrigerating circuit operation.
Certainly, for judging that compression refrigeration circuits operation or the return air design temperature of natural cold-energy refrigerating circuit operation and the difference of set model inversion temperature are not limited to 5 ℃, can be as the case may be suitable heightening or turning down.
What need statement is; the above-mentioned specific embodiment is only preferred embodiment of the present utility model and institute's application technology principle; in technical scope disclosed in the utility model; the variation that any those skilled in the art of being familiar with easily expect or replacement, all should be encompassed in protection domain of the present utility model.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320461733.6U CN203478687U (en) | 2013-07-30 | 2013-07-30 | Refrigeration system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320461733.6U CN203478687U (en) | 2013-07-30 | 2013-07-30 | Refrigeration system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203478687U true CN203478687U (en) | 2014-03-12 |
Family
ID=50227006
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320461733.6U Expired - Lifetime CN203478687U (en) | 2013-07-30 | 2013-07-30 | Refrigeration system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203478687U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103363717A (en) * | 2013-07-30 | 2013-10-23 | 新奥科技发展有限公司 | Refrigerating system and operation method thereof |
| CN104776633A (en) * | 2015-03-10 | 2015-07-15 | 深圳市艾特网能有限公司 | Hybrid power refrigeration system and control method thereof |
| CN105423656A (en) * | 2015-12-23 | 2016-03-23 | 广东美的暖通设备有限公司 | Refrigeration system and control method thereof |
| CN105758033A (en) * | 2016-04-29 | 2016-07-13 | 北京天云动力科技有限公司 | Energy-efficient cooling system and method for data center |
-
2013
- 2013-07-30 CN CN201320461733.6U patent/CN203478687U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103363717A (en) * | 2013-07-30 | 2013-10-23 | 新奥科技发展有限公司 | Refrigerating system and operation method thereof |
| CN104776633A (en) * | 2015-03-10 | 2015-07-15 | 深圳市艾特网能有限公司 | Hybrid power refrigeration system and control method thereof |
| CN104776633B (en) * | 2015-03-10 | 2017-05-10 | 深圳市艾特网能有限公司 | Hybrid power refrigeration system and control method thereof |
| CN105423656A (en) * | 2015-12-23 | 2016-03-23 | 广东美的暖通设备有限公司 | Refrigeration system and control method thereof |
| CN105758033A (en) * | 2016-04-29 | 2016-07-13 | 北京天云动力科技有限公司 | Energy-efficient cooling system and method for data center |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103363717A (en) | Refrigerating system and operation method thereof | |
| CN110030763B (en) | Operation method of gas engine driven vapor compression type air source heat pump hot and cold water unit | |
| CN100533003C (en) | Air source solution heat pump device based on reverse osmosis membrane solution regeneration | |
| CN100552323C (en) | Solar-air source energy storage type solution heat pump device | |
| CN203231582U (en) | Two-stage compression heat pump system with economizer and defrosting by means of hot gas bypassing | |
| CN103411352B (en) | Heat source tower heat pump device achieving solution low-pressure boiling regeneration through heat of subcooling | |
| CN100523652C (en) | Air source solution type heat pump device | |
| CN103486754B (en) | A kind of energy-conservation middle temperature cold-producing medium/middle temperature cold-producing medium cascade refrigeration system | |
| CN101261024A (en) | Air Conditioning Unit Device and Air Treatment Method for Heat and Humidity Sectional Treatment | |
| CN104061705A (en) | Two-stage compression air conditioning system and control method thereof | |
| CN103363710B (en) | A kind of heat pump of air source hot pump water heater | |
| CN104154692B (en) | A kind of novel Gas-supplying enthalpy-increasing system and control method thereof | |
| CN102155772A (en) | Cascaded ice-storage air conditioning system and method utilizing same to supply cold air for air conditioner | |
| CN108302838A (en) | A kind of heat-storage solar energy coupling air source heat pump system and its control method | |
| CN101776353A (en) | Cooling tower-based solution type cold and hot water unit | |
| CN203478687U (en) | Refrigeration system | |
| CN104482688B (en) | A kind of solar absorption compression combined formula refrigeration system and method thereof | |
| CN107120831A (en) | A kind of continuous heating air friction drag | |
| CN207893919U (en) | A kind of mechanical refrigeration and auxiliary cold source two-way United system | |
| CN102767921B (en) | Double-way pre-cooling efficient heat pump device and control method thereof | |
| CN202133170U (en) | A Liquid Level Control System of a Flooded Refrigeration Unit | |
| CN201149400Y (en) | A solution-based air source/water-cooled heat pump device | |
| CN101625176B (en) | Quasi three-stage compressed air source heat pump system | |
| CN206930033U (en) | Electric expansion valve hot gas defrosting system Condensing units | |
| CN206709446U (en) | A kind of efficient freezer based on ground source technology is with drying storehouse hybrid system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Langfang Xin Ao energy conservation services Co.,Ltd. Assignor: ENN SCIENCE & TECHNOLOGY DEVELOPMENT Co.,Ltd. Contract record no.: 2015990000696 Denomination of utility model: Energy saving device of refrigeration system Granted publication date: 20140312 License type: Exclusive License Record date: 20150727 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| EM01 | Change of recordation of patent licensing contract | ||
| EM01 | Change of recordation of patent licensing contract |
Change date: 20171206 Contract record no.: 2015990000696 Assignee after: LANGFANG ENN PANERGY NETWORK TECHNOLOGY SERVICE CO.,LTD. Assignee before: Langfang Xin Ao energy conservation services Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140312 |