CN203163323U - Water-cooled screw-type water chiller - Google Patents
Water-cooled screw-type water chiller Download PDFInfo
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- CN203163323U CN203163323U CN 201320087095 CN201320087095U CN203163323U CN 203163323 U CN203163323 U CN 203163323U CN 201320087095 CN201320087095 CN 201320087095 CN 201320087095 U CN201320087095 U CN 201320087095U CN 203163323 U CN203163323 U CN 203163323U
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- water
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- evaporator
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Abstract
The utility model relates to a water-cooled screw-type water chiller. The water-cooled screw-type water chiller comprises a screw-type compressor, a condenser and an evaporator. An oil separator is arranged between the outlet end of the screw-type compressor and the inlet end of the condenser and communicated with the pipe of the inlet end of the screw-type compressor through pipes; a gas-liquid separator is arranged between the inlet end of the screw-type compressor and the outlet end of the condenser; the screw-type compressor is connected to an oil cooler which is connected with the inlet end and the outlet end of the condenser respectively through pipes; the inlet end and the outlet end of the condenser are connected with the inlet end and the outlet end of a cooling tower respectively through pipes; and the inlet end and the outlet end of the evaporator are connected with a user end and a user water return end respectively through pipes, and the periphery of the pipe between the inlet end of the evaporator and the user end is provided with an ethylene glycol water solution tank. The water-cooled screw-type water chiller is simple in structure and effective in anti-freezing, guarantees chillers to operate safely and reliably, avoids the fuel starvation of the compressor and greatly prolongs the service life of the chillers.
Description
Technical field
The utility model relates to a kind of cooling-water machine, especially relates to a kind of water-cooling screw rod formula cooling-water machine.
Background technology
Cooling-water machine is a kind ofly to reach the machine of refrigeration by both vapor compression or absorption circulation, and these liquid can flow through heat exchanger and arrive purpose to air or equipment cooling.The both vapor compression handpiece Water Chilling Units comprises the steam compression type refrigeration circulation (compressor, evaporimeter, condenser, the form of part metering device) of four chief components, and these machines can be realized different cold-producing mediums.The cold-producing medium that Absorption Refrigerator uses and the optimum silica gel of urban water are as drier, and Absorption Refrigerator utilizes water as cold-producing medium, and water and lithium-bromide solution between relying on, to reach the very strong affinity of refrigeration.Be widely used in fields such as plastics industry, electronics industry, mechanical industry, building industry, food industry, chemical fibre industry.
Existing cooling-water machine uses refrigeration principle that water is lowered the temperature, and when temperature is lower than 0 when spending, medium is easily because low temperature and being frozen, and in addition, the oil return situation of compressor reached also less than requiring when compressor moved at worst cold case, easily caused the compressor oil starvation; And the operative liquid cold-producing medium that exists in the compressor return air has very big influence to compressor, not only influences refrigeration, and influences the service life of refrigeration unit.
The utility model content
In order to overcome the deficiency that prior art exists, the utility model provides a kind of water-cooling screw rod formula cooling-water machine.
A kind of water-cooling screw rod formula cooling-water machine, described cooling-water machine comprise that successively described screw compressor, condenser and evaporimeter are equipped with corresponding entrance point and the port of export by pipeline be formed by connecting screw compressor, condenser and the evaporimeter of sealing loop; Be provided with oil eliminator between the described screw compressor port of export and the condenser inlet end, described oil eliminator is connected by the pipeline of pipeline with the screw compressor entrance point; Be provided with gas-liquid separator between described screw compressor entrance point and the evaporator outlet end; Described screw compressor is connected to oil cooler, and described oil cooler links to each other with the port of export with the condenser inlet end respectively by pipeline; Described condenser inlet end links to each other with the port of export with the entrance point of cooling tower respectively by pipeline with the port of export, and described evaporator end links to each other with user side and user's backwater end respectively by pipeline with the port of export; The pipeline periphery that links to each other between described evaporator end and the user side is provided with the glycol water water tank, is provided with fluid level controller in the described water tank.
Preferably, be respectively equipped with refrigerant high-low pressure Pressure gauge on the described screw compressor port of export and the pipeline that entrance point links to each other, described refrigerant high-low pressure Pressure gauge is connected to the refrigerant dual-pressure controller.
Preferably, described condensator outlet end is along being provided with coolant drying filter, refrigerant liquid-sighting glass and refrigerant expansion valve on the pipeline of evaporator extreme direction in turn.
Preferably, the pipeline that the described cooling tower port of export links to each other with the condensator outlet end is provided with first centrifugal pump, and the pipeline between the described cooling tower port of export and first centrifugal pump is provided with first water filter.
Preferably, the pipeline between described evaporimeter and the gas-liquid separator is provided with the refrigerant charging valve.
Preferably, the pipeline between described user's backwater end and the evaporator outlet end is provided with the discharge switch.
Preferably, described evaporator end is continued to use on the pipeline of family extreme direction and is provided with second centrifugal pump and temperature sensor in turn.
Preferably, be provided with second water filter between described evaporator end and second centrifugal pump.
Preferably, described evaporimeter adopts dry evaporator, is provided with deicing controllor in the described dry evaporator.
The utility model is simple in structure, adopts the glycol water water tank, the freezing point of water can be reduced, and carries out effectively antifreeze; Adopt oil cooler, guaranteed that the cooling-water machine unit safety moves reliably; The oil eliminator that adds is therefrom separated oil when the screw compressor exhaust, directly is back to compressor, guarantees not oil starvation of compressor; Gas-liquid separator then effectively enters compressor with the liquid refrigerant prevention, has prolonged the service life of cooling-water machine greatly.
Description of drawings
Fig. 1 is operation principle schematic diagram of the present utility model.
The specific embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments, but protection domain of the present utility model is not limited to this.
With reference to Fig. 1, a kind of water-cooling screw rod formula cooling-water machine, comprise screw compressor 1, condenser 2 and evaporimeter 3, the port of export of described compressor 1 links to each other by the entrance point of pipeline with condenser 2, the port of export of condenser 2 links to each other by the entrance point of pipeline with evaporimeter 3, and the port of export of evaporimeter 3 links to each other by the entrance point of pipeline with compressor 1; Be respectively equipped with refrigerant high-low pressure Pressure gauge 4 on described compressor 1 port of export and the pipeline that entrance point links to each other, described refrigerant high-low pressure Pressure gauge 4 is connected to refrigerant dual-pressure controller 5; Described condenser 2 ports of export are along being provided with coolant drying filter 6, refrigerant liquid-sighting glass 7 and refrigerant expansion valve 8 on the pipeline of evaporimeter 3 entrance point directions in turn.
Be provided with oil eliminator 9 between described compressor 1 port of export and condenser 2 entrance points, described oil eliminator 9 is connected by the pipeline of pipeline with compressor 1 entrance point; Be provided with gas-liquid separator 10 between described compressor 1 entrance point and evaporimeter 3 ports of export; Described compressor 1 is connected to oil cooler 23, and described oil cooler 23 links to each other with the port of export with condenser 2 entrance points respectively by pipeline; Described condenser 2 entrance points link to each other with the port of export with the entrance point of cooling tower 11 respectively by pipeline with the port of export, and described evaporimeter 3 entrance points link to each other with user side 12 and user's backwater end 13 respectively by pipeline with the port of export; The pipeline periphery that links to each other between described evaporimeter 3 entrance points and the user side 12 is provided with glycol water water tank 14, is provided with fluid level controller 24 in the described water tank.
The pipeline that described cooling tower 11 ports of export link to each other with condenser 2 ports of export is provided with first centrifugal pump 15, and the pipeline between described cooling tower 11 ports of export and first centrifugal pump 15 is provided with first water filter 16; Described evaporimeter 3 entrance points are provided with second water filter 19 along being provided with second centrifugal pump 17 and temperature sensor 18 on the pipeline of user side 12 directions in turn between described evaporimeter 3 entrance points and second centrifugal pump 17.
Pipeline between described evaporimeter 3 and the gas-liquid separator 10 is provided with refrigerant charging valve 20, and the pipeline between described user's backwater end 13 and evaporimeter 3 ports of export is provided with discharge switch 21.
Described condenser 2 adopts shell-and-tube water condenser, and described evaporimeter 3 adopts dry evaporator, is provided with deicing controllor 22 in the described dry evaporator.
Refrigeration system is made up of compressor, condenser and evaporimeter, with pipeline they is connected into a sealing system.Refrigerant liquid with low temperature and the object generation heat exchange that is cooled, absorbs heat and the gasification of the object that is cooled in evaporimeter, the low-pressure steam of generation is sucked by compressor, discharges with high pressure after compression.The high-pressure gaseous refrigerant that compressor is discharged advances condenser, by the cooling water of normal temperature or air cooling, condenses into highly pressurised liquid.Throttling when highly pressurised liquid is flowed through expansion valve, become the gas-fluid two-phase mixture of low-pressure low-temperature, enter evaporimeter, the temperature when vaporizing in pipe owing to refrigerant is lower than the temperature outside the evaporator tube, so the outer heat of its energy absorption tube, thereby the medium temperature of the evaporimeter of flowing through is reduced, imitate thereby produce refrigeration cool-down, the sweat cooling in evaporimeter of liquid refrigerants wherein, the low-pressure steam of generation is sucked by compressor again, so go round and begin again, constantly circulation.
The utility model uses refrigeration principle that water is lowered the temperature, and when temperature is lower than 0 when spending, medium must carry out antifreeze processing, so we add the ethylene glycol of corresponding proportion in water, with the freezing point reduction of water; And screw compressor oil return situation of compressor when worst cold case moves does not reach requirement, so the oil eliminator that adds in the system, when compressor air-discharging oil is therefrom separated, and directly is back to compressor, guarantees not oil starvation of compressor; And the operative liquid cold-producing medium that exists in the return-air has very big influence to compressor, and gas-liquid separator is contained on the aspirating air pipe of compressor, effectively liquid refrigerant is stoped to enter compressor.
Claims (9)
1. water-cooling screw rod formula cooling-water machine, it is characterized in that: described cooling-water machine comprises that successively described screw compressor, condenser and evaporimeter are equipped with corresponding entrance point and the port of export by pipeline be formed by connecting screw compressor, condenser and the evaporimeter of sealing loop; Be provided with oil eliminator between the described screw compressor port of export and the condenser inlet end, described oil eliminator is connected by the pipeline of pipeline with the screw compressor entrance point; Be provided with gas-liquid separator between described screw compressor entrance point and the evaporator outlet end; Described screw compressor is connected to oil cooler, and described oil cooler links to each other with the port of export with the condenser inlet end respectively by pipeline; Described condenser inlet end links to each other with the port of export with the entrance point of cooling tower respectively by pipeline with the port of export, and described evaporator end links to each other with user side and user's backwater end respectively by pipeline with the port of export; The pipeline periphery that links to each other between described evaporator end and the user side is provided with the glycol water water tank, is provided with fluid level controller in the described water tank.
2. water-cooling screw rod formula cooling-water machine according to claim 1, it is characterized in that: be respectively equipped with refrigerant high-low pressure Pressure gauge on the described screw compressor port of export and the pipeline that entrance point links to each other, described refrigerant high-low pressure Pressure gauge is connected to the refrigerant dual-pressure controller.
3. water-cooling screw rod formula cooling-water machine according to claim 1, it is characterized in that: described condensator outlet end is along being provided with coolant drying filter, refrigerant liquid-sighting glass and refrigerant expansion valve on the pipeline of evaporator extreme direction in turn.
4. water-cooling screw rod formula cooling-water machine according to claim 1, it is characterized in that: the pipeline that the described cooling tower port of export links to each other with the condensator outlet end is provided with first centrifugal pump, and the pipeline between the described cooling tower port of export and first centrifugal pump is provided with first water filter.
5. water-cooling screw rod formula cooling-water machine according to claim 1, it is characterized in that: the pipeline between described evaporimeter and the gas-liquid separator is provided with the refrigerant charging valve.
6. water-cooling screw rod formula cooling-water machine according to claim 1, it is characterized in that: the pipeline between described user's backwater end and the evaporator outlet end is provided with the discharge switch.
7. water-cooling screw rod formula cooling-water machine according to claim 1 is characterized in that: described evaporator end is continued to use on the pipeline of family extreme direction and is provided with second centrifugal pump and temperature sensor in turn.
8. water-cooling screw rod formula cooling-water machine according to claim 1 is characterized in that: be provided with second water filter between described evaporator end and second centrifugal pump.
9. water-cooling screw rod formula cooling-water machine according to claim 1 is characterized in that: described evaporimeter adopts dry evaporator, is provided with deicing controllor in the described dry evaporator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320087095 CN203163323U (en) | 2013-02-26 | 2013-02-26 | Water-cooled screw-type water chiller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320087095 CN203163323U (en) | 2013-02-26 | 2013-02-26 | Water-cooled screw-type water chiller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203163323U true CN203163323U (en) | 2013-08-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320087095 Expired - Fee Related CN203163323U (en) | 2013-02-26 | 2013-02-26 | Water-cooled screw-type water chiller |
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| Country | Link |
|---|---|
| CN (1) | CN203163323U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106052222A (en) * | 2016-05-30 | 2016-10-26 | 哈尔滨工业大学 | Large-medium dual throttle refrigeration water unit achieving water cooling type oil cooling |
-
2013
- 2013-02-26 CN CN 201320087095 patent/CN203163323U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106052222A (en) * | 2016-05-30 | 2016-10-26 | 哈尔滨工业大学 | Large-medium dual throttle refrigeration water unit achieving water cooling type oil cooling |
| CN106052222B (en) * | 2016-05-30 | 2018-08-03 | 哈尔滨工业大学 | A kind of oil cooled large and medium-sized double throttle chilled water unit of water-cooled |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130828 Termination date: 20150226 |
|
| EXPY | Termination of patent right or utility model |