CN206160542U - Overlapping formula refrigerating units - Google Patents
Overlapping formula refrigerating units Download PDFInfo
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- CN206160542U CN206160542U CN201621131662.3U CN201621131662U CN206160542U CN 206160542 U CN206160542 U CN 206160542U CN 201621131662 U CN201621131662 U CN 201621131662U CN 206160542 U CN206160542 U CN 206160542U
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- temperature level
- condenser
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- cooling tower
- compressor
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- 238000001816 cooling Methods 0.000 claims abstract description 25
- 239000007788 liquid Substances 0.000 claims abstract description 15
- 230000008676 import Effects 0.000 claims description 15
- 239000002826 coolant Substances 0.000 claims description 5
- 238000001704 evaporation Methods 0.000 claims description 5
- 230000005494 condensation Effects 0.000 claims description 3
- 238000009833 condensation Methods 0.000 claims description 3
- 230000008020 evaporation Effects 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims 1
- 239000007924 injection Substances 0.000 claims 1
- 238000005057 refrigeration Methods 0.000 abstract description 8
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 206010037660 Pyrexia Diseases 0.000 abstract 2
- 238000007710 freezing Methods 0.000 description 7
- 230000008014 freezing Effects 0.000 description 7
- 238000007599 discharging Methods 0.000 description 4
- 239000003507 refrigerant Substances 0.000 description 2
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000011555 saturated liquid Substances 0.000 description 1
- 238000004781 supercooling Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Other Air-Conditioning Systems (AREA)
Abstract
The utility model relates to an overlapping formula refrigerating units belongs to the refrigeration cycle field, and it includes high temperature level circulation system and low -temperature level circulation system, high temperature level circulation system in set up the sprayer, the sprayer is connected with generator, vapour and liquid separator and high -temperature -level compressor respectively, overlapping formula refrigerating units still include a cooling tower, the cooling tower is connected with high temperature level condenser, perhaps establishes the hookup location at high temperature level circulation system and low -temperature level circulation system. The sprayer reduced refrigerating units key components's work load and exhaust temperature effectively, improve the operational reliability of compressor. When the cooling tower is connected with high temperature level condenser, can reduces high -temperature -level compressor's among the high temperature level circulation system operating load, and then reduce the energy consumption, when the hookup location at high temperature level circulation system and low -temperature level circulation system is established to the cooling tower, under the lower condition of outdoor temperature, may not start high temperature level circulation system, and then practice thrift the energy.
Description
Technical field
The utility model is related to superposition type freezing unit, belongs to kind of refrigeration cycle field.
Background technology
The low-temperature level compressor air-discharging with the higher degree of superheat, is directly entered condensation evaporation in traditional Cascade refrigeration cycle
To first pass through cooling after device to be condensed into saturated liquid again or have the liquid of certain degree of supercooling, low-temperature level compressor air-discharging is cooled down and cold
The height of solidifying load directly influences the size of high-temperature level refrigeration cycle refrigerating capacity.With NH3And CO2The cascade refrigeration system of composition
As a example by system, when low-temperature level evaporating temperature be -50 DEG C, condensation temperature be -10 DEG C when, low-temperature level compressor air-discharging is CO2Temperature
About 60 DEG C.In view of the heat transfer temperature difference in condenser/evaporator, about -15 DEG C of high-temperature level evaporating temperature, therefore high-temperature level refrigeration
The very big temperature difference is there is between the evaporimeter and low-temperature level compressor air-discharging of circulation, and this will be in condenser/evaporator heat transfer process
The middle waste for producing serious irreversible loss and cold.Meanwhile, in high-temperature level refrigeration cycle, liquid refrigerant is after throttling
Flashed vapour can be produced, this part flashed vapour enters after condenser/evaporator and cold not only will not be produced in condenser/evaporator, will also
Occupying condenser/evaporator heat exchange area affects the evaporation of liquid refrigerant, so as to reduce condenser/evaporator heat exchange efficiency and reduction
Refrigerating capacity.Moreover, this part do not produce the flashed vapour of cold will also be by high-temperature level compressor after condenser/evaporator
Suction is compressed into condensing pressure, increases the wasted work of high-temperature level compressor.
Utility model content
To overcome the deficiencies in the prior art, it is negative that the utility model can effectively reduce condenser/evaporator heat exchange there is provided one kind
Lotus, improves the exchange capability of heat of high-temperature level evaporimeter, the wasted work of high-temperature level compressor is reduced, so as to improve the refrigeration system of whole system
Several superposition type freezing units.
For the attainment of one's purpose, the technical scheme of the utility model offer is：
A kind of superposition type freezing unit that the utility model is related to, it is characterised in that：It includes the high-temperature level being connected with each other
The circulatory system and the low-temperature level circulatory system, the described high-temperature level circulatory system includes the high-temperature level compressor of circulation connection, occurs
Device, high-temperature level condenser, high-temperature level choke valve, gas-liquid segregating unit and condenser/evaporator, the described high-temperature level circulatory system is also wrapped
Injector is included, the gas outlet end of generator is connected by the first magnetic valve with injector, the gas outlet end of gas-liquid segregating unit
It is connected with the ejection gas entrance point of injector by the second magnetic valve, gas outlet end and the warm condenser of injector connect
Connect, described gas-liquid segregating unit is also connected by the 3rd magnetic valve with high-temperature level compressor；The described low-temperature level circulatory system is extremely
It it is less two groups, every group of low-temperature level circulatory system includes low-temperature level compressor, low-temperature level condenser, the low-temperature level section being sequentially connected
Stream valve and evaporimeter, the described import of low-temperature level condenser is connected with the outlet of condenser/evaporator, and low-temperature level condenser goes out
Mouth is connected with the import of condenser/evaporator, and the 4th magnetic valve is provided between low-temperature level condensator outlet and condenser/evaporator import.
Preferably, described high-temperature level condenser is water-cooled condenser, and the coolant of water-cooled condenser is imported and exported by pipe
Road is connected with cooling tower, and before the inlet of cooling tower circulating pump is additionally provided with.
Preferably, described high-temperature level condenser is air-cooled condenser, the high-temperature level circulatory system and the low-temperature level circulatory system
Link position be additionally provided with cooling tower, the described import of cooling tower is connected with the outlet of condenser/evaporator by heat-carrying pipeline,
The outlet of cooling tower is connected with the import of condenser/evaporator by bypass, and heat-carrying pipeline is provided with circulating pump.
Preferably, described high-temperature level compressor and low-temperature level compressor adopts open-type screw compressor.
The technical scheme provided using the utility model, compared with prior art, is had the advantages that：
The superposition type freezing unit that the utility model is related to is additionally arranged injector, significantly reduces freezing unit key portion
The live load and delivery temperature of part, improves the functional reliability of compressor；Secondly, the utility model is provided with cooler, has
Energy adjustment and automatic protection functions.
Description of the drawings
Fig. 1 is the structural representation that the utility model superposition type freezes unit；
Fig. 2 is the structural representation that the superposition type of embodiment 1 freezes unit；
Fig. 3 is the structural representation that the superposition type of embodiment 2 freezes unit.
Mark explanation in schematic diagram：1 high-temperature level compressor, 2 generators, 3 high-temperature level condensers, 4 high-temperature level sections
Stream valve, 5 gas-liquid segregating units, 6 condenser/evaporators, 7 injectors, 8 first magnetic valves, 9 second magnetic valves, 10 the 3rd electromagnetism
Valve, 11 low-temperature level compressors, 12 low-temperature level condensers, 13 low-temperature level choke valves, 14 evaporimeters, 15 the 4th magnetic valves, 16
Cooling tower, 17 circulating pumps.
Specific embodiment
To further appreciate that content of the present utility model, the utility model is described in detail in conjunction with the embodiments, it is real below
Example is applied for illustrating the utility model, but is not limited to scope of the present utility model.
Embodiment one：
Referring to the drawings shown in 1, the superposition type freezing unit that the present embodiment is related to includes the high-temperature level cyclic system being connected with each other
Unite and the low-temperature level circulatory system, the described high-temperature level circulatory system includes high-temperature level compressor 1, generator 2, the height of circulation connection
Warm level condenser 3, high-temperature level choke valve 4, gas-liquid segregating unit 5 and condenser/evaporator 6, the described high-temperature level circulatory system also includes
Injector 7, the gas outlet end of generator 2 is connected by the first magnetic valve 8 with injector 7, the gas vent of gas-liquid segregating unit 5
End is connected by the second magnetic valve 9 with the ejection gas entrance point of injector 7, and gas outlet end and the high temperature of injector 7 are condensed
Device 3 connects, and described gas-liquid segregating unit 5 is also connected by the 3rd magnetic valve 10 with high-temperature level compressor 1.Described low-temperature level is followed
Loop systems are two groups, low-temperature level compressor 11 that two groups of low-temperature level circulatory systems include being sequentially connected, low-temperature level condenser 12,
Low-temperature level choke valve 13 and evaporimeter 14, the import of described low-temperature level condenser 12 is connected with the outlet of condenser/evaporator 6, low
The outlet of warm level condenser 12 is connected with the import of condenser/evaporator 6, low-temperature level condensator outlet and condenser/evaporator import it
Between be provided with the 4th magnetic valve 13, the setting of injector significantly reduces the live load and exhaust temperature of freezing unit critical component
Degree, improves the functional reliability of compressor.High-temperature level compressor and low-temperature level compressor in the present embodiment adopts open-type
Screw compressor, the characteristics of the formula screw compressor of opening has few moving component, bearing long service life.
With reference to shown in accompanying drawing 2, the high-temperature level condenser 3 in the present embodiment adopts water-cooled condenser, water-cooled condenser it is cold
But liquid is imported and exported and is connected with cooling tower 16 by pipeline, circulating pump 17 is additionally provided with before the inlet of cooling tower, using the cooling
Coolant in 16 pairs, the tower high-temperature level condenser 3 is lowered the temperature, and with more preferable cooling effect, can further reduce height
The operating load of warm level circulatory system high temperature level compressor 1, and then energy consumption is reduced, refrigerating efficiency is improve, make high-temperature level
Compressor has operating condition preferably, extends the service life of high-temperature level compressor.
Embodiment two：
The high-temperature level circulatory system in the present embodiment and the connection between the building block and part of the low-temperature level circulatory system
Relation is identical with embodiment one, and difference is：The present embodiment high-temperature level condenser 3 adopts air-cooled condenser, high-temperature level to follow
The link position of loop systems and the low-temperature level circulatory system is additionally provided with cooling tower 16, the import of described cooling tower and condenser/evaporator
Outlet connected by heat-carrying pipeline, the outlet of cooling tower and the import of condenser/evaporator are connected by bypass, on heat-carrying pipeline
It is provided with circulating pump 17.
When outdoor temperature is relatively low, the temperature that the low-temperature level condenser 12 in the low-temperature level circulatory system is discharged is higher
Coolant is directly pumped in cooling tower 16 by circulating pump 17 and realizes natural cooling, at this moment need not just start the high-temperature level circulatory system
The coolant higher to temperature is cooled down, and then further saves the energy, reduces use cost.
The utility model has been described in detail above in association with embodiment, but the content be only it is of the present utility model compared with
Good embodiment, it is impossible to be considered as limiting practical range of the present utility model.It is all to be made according to the utility model application range
Impartial change and improvement etc., all should still fall within patent covering scope of the present utility model.
Claims (4)
1. a kind of superposition type freezes unit, it is characterised in that：It includes that the high-temperature level circulatory system being connected with each other and low-temperature level are followed
Loop systems, the described high-temperature level circulatory system includes high-temperature level compressor, generator, high-temperature level condenser, the height of circulation connection
Warm level choke valve, gas-liquid segregating unit and condenser/evaporator, the described high-temperature level circulatory system also includes injector, the gas of generator
The body port of export is connected by the first magnetic valve with injector, and the gas outlet end of gas-liquid segregating unit is by the second magnetic valve and injection
The ejection gas entrance point connection of device, the gas outlet end of injector is connected with warm condenser, and described gas-liquid segregating unit is also
It is connected with high-temperature level compressor by the 3rd magnetic valve；
The described low-temperature level circulatory system is at least two groups, and every group of low-temperature level circulatory system includes the low-temperature level pressure being sequentially connected
Contracting machine, low-temperature level condenser, low-temperature level choke valve and evaporimeter, import and the condenser/evaporator of described low-temperature level condenser
Outlet connection, the outlet of low-temperature level condenser is connected with the import of condenser/evaporator, low-temperature level condensator outlet and condensation evaporation
The 4th magnetic valve is provided between device import.
2. superposition type according to claim 1 freezes unit, it is characterised in that：Described high-temperature level condenser is that water-cooled is cold
Condenser, the coolant of water-cooled condenser is imported and exported and is connected with cooling tower by pipeline, and circulation is additionally provided with before the inlet of cooling tower
Pump.
3. superposition type according to claim 1 freezes unit, it is characterised in that：Described high-temperature level condenser is air-cooled cold
The link position of condenser, the high-temperature level circulatory system and the low-temperature level circulatory system is additionally provided with cooling tower, the import of described cooling tower
Outlet with condenser/evaporator is connected by heat-carrying pipeline, and the outlet of cooling tower is with the import of condenser/evaporator by the company of bypass
Connect, heat-carrying pipeline is provided with circulating pump.
4. superposition type according to claim 1 freezes unit, it is characterised in that：Described high-temperature level compressor and low-temperature level
Compressor adopts open-type screw compressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621131662.3U CN206160542U (en) | 2016-10-18 | 2016-10-18 | Overlapping formula refrigerating units |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621131662.3U CN206160542U (en) | 2016-10-18 | 2016-10-18 | Overlapping formula refrigerating units |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206160542U true CN206160542U (en) | 2017-05-10 |
Family
ID=58654755
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621131662.3U Active CN206160542U (en) | 2016-10-18 | 2016-10-18 | Overlapping formula refrigerating units |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206160542U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111457610A (en) * | 2020-04-22 | 2020-07-28 | 苏州奥德机械有限公司 | Special refrigerating unit for testing temperature of fuel cell |
| CN113277665A (en) * | 2021-06-12 | 2021-08-20 | 富莱特(北京)科技有限公司 | Method and device for treating high-concentration high-salinity wastewater through electrolytic evaporation |
| CN114046609A (en) * | 2021-11-26 | 2022-02-15 | 天津商业大学 | A cascade heat pump device for gas-liquid separation before intermediate heat exchanger |
-
2016
- 2016-10-18 CN CN201621131662.3U patent/CN206160542U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111457610A (en) * | 2020-04-22 | 2020-07-28 | 苏州奥德机械有限公司 | Special refrigerating unit for testing temperature of fuel cell |
| CN113277665A (en) * | 2021-06-12 | 2021-08-20 | 富莱特(北京)科技有限公司 | Method and device for treating high-concentration high-salinity wastewater through electrolytic evaporation |
| CN114046609A (en) * | 2021-11-26 | 2022-02-15 | 天津商业大学 | A cascade heat pump device for gas-liquid separation before intermediate heat exchanger |
| CN114046609B (en) * | 2021-11-26 | 2024-04-12 | 天津商业大学 | Overlapping type heat pump device for front gas-liquid separation of intermediate heat exchanger |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220112 Address after: 313310 room 311, block B, No. 23, tianzihu Avenue, modern industrial park, tianzihu Town, Anji County, Huzhou City, Zhejiang Province Patentee after: Kassel machinery (Zhejiang) Co.,Ltd. Address before: 311100 No. 3, Wanhe Road, Gaoqiao village, Cangqian street, Yuhang District, Hangzhou City, Zhejiang Province Patentee before: HANGZHOU KASSEL MACHINERY Co.,Ltd. |