CN102865690A - Novel water cooling unit - Google Patents
Novel water cooling unit Download PDFInfo
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- CN102865690A CN102865690A CN2012103605384A CN201210360538A CN102865690A CN 102865690 A CN102865690 A CN 102865690A CN 2012103605384 A CN2012103605384 A CN 2012103605384A CN 201210360538 A CN201210360538 A CN 201210360538A CN 102865690 A CN102865690 A CN 102865690A
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- evaporimeter
- condenser
- outlet
- air compressor
- refrigerant
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Abstract
The invention discloses a novel water cooling unit which comprises a condenser, an evaporator, an oil and gas separator and an air compressor. The condenser is provided with a condenser water inlet, a condenser water outlet, a condenser refrigerant inlet and a condenser refrigerant outlet, the evaporator is provided with an evaporator water inlet, an evaporator water outlet, an evaporator refrigerant inlet and an evaporator refrigerant outlet, the oil and gas separator is provided with an oil and gas separator inlet and an oil and gas separator outlet, the air compressor is arranged between the evaporator refrigerator inlet and the oil and gas separator inlet, the oil and gas separator is provided with an oil outlet, the oil outlet is communicated with a lubricating oil port of the air compressor, the evaporator is provided with a temperature sensor, a pressure sensor is arranged between an outlet of the air compressor and the oil and gas separator inlet, and a cooling water pump is connected to the condensed water inlet. The novel water cooling unit has the advantages that the problem of unsmooth oil return caused during starting of the air compressor is solved and operation efficiency of the whole water cooling unit is increased.
Description
Technical field
The present invention relates to technical field of refrigerating devices, relate in particular a kind of water chiller.
Background technology
In industrial production and daily life, a lot of machineries, office, family all need to use refrigerating plant.
In the existing refrigerating plant, it much is the unit that utilizes water to cool, patent publication No. is CN201875994U, open day is that on 06 22nd, 2011 Chinese utility model patent discloses a kind of internal recycle box-type water-cooling group, it comprises a housing, be provided with water tank in the described housing, heat exchanger, compression pump and evaporimeter, described water tank is connected with described heat exchanger, described heat exchanger is connected with described compression pump, described compression pump is connected with described evaporimeter, the delivery port of described evaporimeter is provided with a three-way control valve, the first valve port of described three-way control valve is connected with described evaporimeter, the second valve port of described three control valves is connected with described water tank, the 3rd valve port of described three-way control valve is connected with outlet pipe, described the 3rd valve port place is provided with a temperature sensor, described temperature sensor, three-way control valve is connected with a PLC controller.This water chiller can make chilled water flow be back in the water tank and circulate, and compression pump just can not quit work like this, so leaving water temperature do not have large variation, thereby can guarantee the normal operation of target device.Housing adopts the PP anticorrosive, can prevent that high temperature soda acid volatilization gas to the corrosion of housing, prolonging the service life of this internal recycle box-type water-cooling group.But, it also has weak point: in the existing water chiller work, inefficiency, when air compressor (compression pump) starts, the not smooth phenomenon of air-compressor lubricating oil oil return often occurs, have a strong impact on the normal operation of air compressor, also reduced the service life of air compressor, reduced the operating efficiency of whole water chiller.
Summary of the invention
The objective of the invention is for the deficiencies in the prior art part, a kind of water cooling unit is provided, it has solved the not smooth problem of oil return that occurs when air compressor starts, and has improved the operating efficiency of whole water chiller.
In order to solve the problems of the technologies described above, technical scheme of the present invention is as follows: the water cooling unit, comprise and have the condenser water inlet, the condenser delivery port, the condenser of the import of condenser refrigerant and condenser refrigerant exit, has the evaporimeter water inlet, the evaporimeter delivery port, the evaporimeter of the import of evaporimeter refrigerant and evaporimeter refrigerant exit, have gs-oil separator import and gs-oil separator the outlet gs-oil separator and be arranged on described evaporimeter refrigerant exit and described gs-oil separator import between air compressor, described gs-oil separator is provided with the fluid outlet, the lubricated hydraulic fluid port of described fluid outlet and described air compressor is communicated with, described evaporimeter is provided with temperature sensor, be provided with pressure sensor between the outlet of described air compressor and the described gs-oil separator import, be connected with cooling water pump on the described condenser water inlet.
The applicant finds, the not smooth problem of air compressor oil return in the past, when being too small because of the pressure reduction between condenser and the evaporimeter, cooling water pump has just started, caused the not smooth of air compressor lubricating oil return, because want so that the lubricating oil that gs-oil separator is separated returns air compressor smoothly, just need to set up enough pressure, therefore, water chiller of the present invention, be provided with temperature sensor at evaporimeter, simultaneously, be provided with pressure sensor between the outlet of air compressor and gs-oil separator import, its temperature value with temperature sensor is converted into force value, is that the force value of pressure sensor compares, only have when both pressure reduction reaches setting value, cooling water pump just starts work, has so just solved the not smooth problem of in the past air compressor oil return, has improved the operating efficiency of water chiller.
As preferably, be provided with electric expansion valve between described condenser refrigerant exit and the import of described evaporimeter refrigerant; Described evaporimeter water inlet and/or described evaporimeter delivery port are equipped with the first temp probe.
Water chiller of the present invention, between condenser refrigerant exit and the import of evaporimeter refrigerant, be provided with electric expansion valve, utilize electric expansion valve to control the amount that enters the refrigerant of evaporimeter from condenser, between the outlet of air compressor and described gs-oil separator import, be provided with pressure sensor and outlet temperature sensor, utilize pressure sensor to monitor from the pressure of compressor outlet refrigerant steam out, and then convert this force value to temperature value, utilize outlet temperature sensor to monitor from the temperature of compressor outlet refrigerant steam out, calculate both differences, when calculate difference (degree of superheat) large the time, it is large that the electric expansion valve opening becomes, the refrigerant quantitative change is many, it is large that air compressor sucks quantitative change, the refrigerating capacity grow, otherwise, electric expansion valve openings get smaller then, refrigerating capacity reduces, so repeatedly, so that whole water cooling plant can either satisfy the demands, do not waste energy again, we find, from the refrigerant steam that air compressor exports out, if the liquid refrigerants that wherein contains is more, then the degree of superheat is less, otherwise, then larger.
As preferably, on described condenser water inlet and/or the described condenser delivery port the second temp probe is installed.
The second temp probe can be assisted the first temp probe work, the temperature of water of turnover condenser is monitored, and then guarantee the normal operation of whole cooling unit.
As preferably, the import of described air compressor is provided with air-breathing protector, and outlet is provided with the air outlet temperature sensor.
Air-breathing protector, air outlet temperature sensor can detect the air pressure of turnover air compressor, when surpassing setting range, send warning, even shut down.
As preferably, be provided with liquid-sighting glass between described refrigerant filter and the described electric expansion valve.
The existence of liquid-sighting glass can observe the situation that flows into the refrigerant of electric expansion valve from the refrigerant filter, in time finds, discharges fault or hidden danger.
As preferably, be provided with boost gauge and low pressure controller between described evaporimeter refrigerant exit and the described air compressor import.
Boost gauge can be so that the real-time observation gas pressure of operator, and low pressure controller then is used for controlling admission pressure.
As preferably, be provided with give vent to anger Pressure gauge and dual pressure controller between described gs-oil separator import and the outlet of described air compressor.
The force value that the Pressure gauge of giving vent to anger can real-time monitored be given vent to anger, dual pressure controller then is used for controlling out the size of atmospheric pressure.
As preferably, low evaporating temperature protector is installed on the described evaporimeter, low evaporating temperature protector is installed on the described evaporimeter.
Should hang down the setting of evaporating temperature protector, and can monitor the temperature of evaporimeter, prevent that its temperature was excessively low, cause damage, and can when temperature is excessively low, give a warning.
As preferably, be provided with the refrigerant filter between described condenser refrigerant exit and the import of described evaporimeter refrigerant.
The refrigerant filter can filter the refrigerant of process, prevents from stopping up evaporimeter and other operation elements, and then guarantees the normal operation of whole water chiller, and reduce trouble has improved the operating efficiency of whole water chiller.
The lubricating oil that gs-oil separator is separated in the fluid outlet is drained in the air compressor again, and is recycling.
As preferably, be provided with control valve and look oily mirror between the lubricated hydraulic fluid port of described fluid outlet and described air compressor.
The switching of control valve control connection oil circuit then is used for observing the mobility status of the lubricating oil that is separated depending on oily mirror.
Beneficial effect of the present invention is:
Water chiller of the present invention, by being provided with temperature sensor at evaporimeter, between the outlet of air compressor and gs-oil separator import, pressure sensor being set, when the pressure difference value between condenser and the evaporimeter reaches a setting pressure reduction, just send instruction and connect the not smooth problem of oil return that has occured when the starting cooling water pump has solved the air compressor startup, improved the operating efficiency of whole water chiller.
Description of drawings
The present invention is described further below in conjunction with accompanying drawing:
Fig. 1 is the structural representation of one embodiment of the invention.
Among the figure:
The 1-condenser, 101-condenser water inlet, 102-condenser delivery port, the import of 103-condenser refrigerant, 104-condenser refrigerant exit;
The 2-evaporimeter, 201-evaporimeter water inlet, 202-evaporimeter delivery port, the import of 203-evaporimeter refrigerant, 204-evaporimeter refrigerant exit;
The 3-gs-oil separator; The import of 301-gs-oil separator, the outlet of 302-gs-oil separator, the outlet of 303-fluid;
The 4-air compressor, the 401-import, the 402-outlet, 403-lubricates hydraulic fluid port;
The 5-electric expansion valve;
6-refrigerant filter;
7-the first temp probe;
8-the second temp probe;
The 9-liquid-sighting glass;
The 10-boost gauge;
The 11-low pressure controller;
The 12-Pressure gauge of giving vent to anger;
The 13-dual pressure controller;
14-hangs down the evaporating temperature protector;
The 15-control valve;
16-looks oily mirror;
The air-breathing protector of 17-;
18-air outlet temperature sensor;
The 19-pressure sensor;
The 20-cooling water pump;
The 21-temperature sensor.
The specific embodiment
The following stated is preferred embodiment of the present invention only, is not that scope of the present invention is limited.
Embodiment, see accompanying drawing 1, the water cooling unit, comprise and have condenser water inlet 101, condenser delivery port 102, the condenser 1 of condenser refrigerant import 103 and condenser refrigerant exit 104, has evaporimeter water inlet 201, evaporimeter delivery port 202, the evaporimeter 2 of evaporimeter refrigerant import 203 and evaporimeter refrigerant exit 204, have gs-oil separator import 301 and gs-oil separator outlet 302 gs-oil separator 3 and be arranged on evaporimeter refrigerant exit 204 and gs-oil separator import 301 between air compressor 4, air compressor 4 has import 401, outlet 402 and lubricated hydraulic fluid port 403, the evaporimeter refrigerant exit 204 of the import of air compressor and evaporimeter 2 is communicated with, the gs-oil separator import 301 of outlet and gs-oil separator 3 is communicated with, gs-oil separator outlet 302 and the condenser refrigerant import 103 of gs-oil separator 3 are communicated with, gs-oil separator 3 is provided with fluid outlet 303, the lubricated hydraulic fluid port of fluid outlet 303 and air compressor 4 is communicated with, be provided with control valve 15 between the lubricated hydraulic fluid port of fluid outlet 303 and air compressor 4 and look oily mirror 16, control valve 15 adopts common manual ball valve to get final product, evaporimeter 2 is provided with temperature sensor 21, be provided with pressure sensor 19 between the outlet of air compressor 4 and the gs-oil separator import 301, be connected with cooling water pump 20 on the described condenser water inlet 101.
Simultaneously, between condenser refrigerant exit 104 and evaporimeter refrigerant import 203, be provided with electric expansion valve 5; Be used for controlling the cold medium flux between condenser and the evaporimeter, evaporimeter water inlet 201 and evaporimeter delivery port 202 are equipped with the first temp probe 7, certainly, also can be in evaporimeter water inlet 201 and evaporimeter delivery port 202 one be equipped with the first temp probe 7, just effect is good not, and the first temp probe can adopt temperature sensor or temperature switch, simultaneously, between condenser refrigerant exit 104 and evaporimeter refrigerant import 203, be provided with refrigerant filter 6, to the refrigerant filtration of process.The second temp probe 8 all is installed on condenser water inlet 101 and condenser delivery port 102, and same, the second temp probe 8 can adopt temperature sensor or temperature switch etc.
The import of air compressor 4 is provided with air-breathing protector 17, and outlet is provided with air outlet temperature sensor 18, and air-breathing protector 17, air outlet temperature sensor 18 can adopt baroswitch or baroceptor.
Be provided with liquid-sighting glass 9 between refrigerant filter 6 and the electric expansion valve 5, be provided with boost gauge 10 and low pressure controller 11 between evaporimeter refrigerant exit 204 and air compressor 4 imports, between gs-oil separator import 301 and air compressor 4 outlets, be provided with give vent to anger Pressure gauge 12 and dual pressure controller 13, boost gauge 10 and the Pressure gauge 12 of giving vent to anger, select as required, because air inlet is different with the force value of giving vent to anger, in the time of all selection pressure tables, note its range, low pressure controller 11 and dual pressure controller can the selection pressure sensors.
Low evaporating temperature protector 14 is installed on the evaporimeter 2, and general, low evaporating temperature protector 14 adopts temperature sensor or temperature detect switch (TDS).
Above explanation only is explanation of the invention, so that complete enforcement this programme of those of ordinary skills' energy, but be not limitation of the present invention, those skilled in the art can make the modification that does not have creative contribution to the present embodiment as required after reading this specification, these all are not creative modifications.But as long as in claim scope of the present invention, all be subject to the protection of Patent Law.
Claims (10)
1. water cooling unit, comprise and have condenser water inlet (101), condenser delivery port (102), the condenser (1) of condenser refrigerant import (103) and condenser refrigerant exit (104), has evaporimeter water inlet (201), evaporimeter delivery port (202), the evaporimeter (2) of evaporimeter refrigerant import (203) and evaporimeter refrigerant exit (204), have gs-oil separator import (301) and gs-oil separator the outlet (302) gs-oil separator (3) and be arranged on described evaporimeter refrigerant exit (204) and described gs-oil separator import (301) between air compressor (4), described gs-oil separator (3) is provided with fluid outlet (303), the lubricated hydraulic fluid port of described fluid outlet (303) and described air compressor (4) is communicated with, it is characterized in that: described evaporimeter (2) is provided with temperature sensor (21), be provided with pressure sensor (19) between the outlet of described air compressor (4) and the described gs-oil separator import (301), be connected with cooling water pump (20) on the described condenser water inlet (101).
2. water cooling unit according to claim 1 is characterized in that: be provided with electric expansion valve (5) between described condenser refrigerant exit (104) and the described evaporimeter refrigerant import (203); Described evaporimeter water inlet (201) and/or described evaporimeter delivery port (202) are equipped with the first temp probe (7).
3. water cooling unit according to claim 2 is characterized in that: on described condenser water inlet (101) and/or the described condenser delivery port (102) the second temp probe (8) is installed.
4. water cooling unit according to claim 3, it is characterized in that: the import of described air compressor (4) is provided with air-breathing protector (17), and outlet is provided with air outlet temperature sensor (18).
5. water cooling unit according to claim 4 is characterized in that: be provided with liquid-sighting glass (9) between described refrigerant filter (6) and the described electric expansion valve (5).
6. water cooling unit according to claim 5 is characterized in that: be provided with boost gauge (10) and low pressure controller (11) between described evaporimeter refrigerant exit (204) and described air compressor (4) import.
7. it is characterized in that according to claim 1 and 2 or 3 or 4 or 5 or 6 described water cooling units: be provided with the Pressure gauge of giving vent to anger (12) and dual pressure controller (13) between described gs-oil separator import (301) and described air compressor (4) outlet.
8. water cooling unit according to claim 7 is characterized in that: low evaporating temperature protector (14) is installed on the described evaporimeter (2).
9. water cooling unit according to claim 8 is characterized in that: be provided with refrigerant filter (6) between described condenser refrigerant exit (104) and the described evaporimeter refrigerant import (203).
10. water cooling unit according to claim 9 is characterized in that: be provided with control valve (15) and look oily mirror (16) between the lubricated hydraulic fluid port of described fluid outlet (303) and described air compressor (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210360538.4A CN102865690B (en) | 2012-09-26 | 2012-09-26 | Water cooling unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210360538.4A CN102865690B (en) | 2012-09-26 | 2012-09-26 | Water cooling unit |
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| Publication Number | Publication Date |
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| CN102865690A true CN102865690A (en) | 2013-01-09 |
| CN102865690B CN102865690B (en) | 2015-09-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210360538.4A Active CN102865690B (en) | 2012-09-26 | 2012-09-26 | Water cooling unit |
Country Status (1)
| Country | Link |
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| CN (1) | CN102865690B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106225340A (en) * | 2016-07-25 | 2016-12-14 | 信易电热机械有限公司 | A kind of refrigeration system |
| CN109163479A (en) * | 2018-10-18 | 2019-01-08 | 中国科学院广州能源研究所 | A kind of automatic oil return gas engine heat pump system |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5347821A (en) * | 1993-07-23 | 1994-09-20 | American Standard Inc. | Apparatus and method of oil charge loss protection for compressors |
| JPH0828971A (en) * | 1994-07-14 | 1996-02-02 | Hitachi Ltd | Controlling method of air conditioner |
| JP2003322421A (en) * | 2002-05-02 | 2003-11-14 | Chubu Electric Power Co Inc | High pressure side pressure control method in supercritical vapor compression circuit and circuit device |
| CN1463352A (en) * | 2001-04-20 | 2003-12-24 | 约克国际公司 | Method and appts. for controlling removal of heat from condenser in refrigeration system |
| JP2006275440A (en) * | 2005-03-30 | 2006-10-12 | Mitsubishi Electric Corp | Refrigerating device |
| JP2010169286A (en) * | 2009-01-20 | 2010-08-05 | Hitachi Appliances Inc | Refrigerating device |
| CN201611190U (en) * | 2010-01-05 | 2010-10-20 | 浙江盾安人工环境设备股份有限公司 | Nuclear plant safety standard cooling-water machine set |
| CN202813860U (en) * | 2012-09-26 | 2013-03-20 | 美意(浙江)空调设备有限公司 | Novel water cooling unit |
-
2012
- 2012-09-26 CN CN201210360538.4A patent/CN102865690B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5347821A (en) * | 1993-07-23 | 1994-09-20 | American Standard Inc. | Apparatus and method of oil charge loss protection for compressors |
| JPH0828971A (en) * | 1994-07-14 | 1996-02-02 | Hitachi Ltd | Controlling method of air conditioner |
| CN1463352A (en) * | 2001-04-20 | 2003-12-24 | 约克国际公司 | Method and appts. for controlling removal of heat from condenser in refrigeration system |
| JP2003322421A (en) * | 2002-05-02 | 2003-11-14 | Chubu Electric Power Co Inc | High pressure side pressure control method in supercritical vapor compression circuit and circuit device |
| JP2006275440A (en) * | 2005-03-30 | 2006-10-12 | Mitsubishi Electric Corp | Refrigerating device |
| JP2010169286A (en) * | 2009-01-20 | 2010-08-05 | Hitachi Appliances Inc | Refrigerating device |
| CN201611190U (en) * | 2010-01-05 | 2010-10-20 | 浙江盾安人工环境设备股份有限公司 | Nuclear plant safety standard cooling-water machine set |
| CN202813860U (en) * | 2012-09-26 | 2013-03-20 | 美意(浙江)空调设备有限公司 | Novel water cooling unit |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106225340A (en) * | 2016-07-25 | 2016-12-14 | 信易电热机械有限公司 | A kind of refrigeration system |
| CN109163479A (en) * | 2018-10-18 | 2019-01-08 | 中国科学院广州能源研究所 | A kind of automatic oil return gas engine heat pump system |
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| Publication number | Publication date |
|---|---|
| CN102865690B (en) | 2015-09-23 |
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