CN200961582Y - Water circulation type vacuum pump cooling device - Google Patents
Water circulation type vacuum pump cooling device Download PDFInfo
- Publication number
- CN200961582Y CN200961582Y CN 200620052506 CN200620052506U CN200961582Y CN 200961582 Y CN200961582 Y CN 200961582Y CN 200620052506 CN200620052506 CN 200620052506 CN 200620052506 U CN200620052506 U CN 200620052506U CN 200961582 Y CN200961582 Y CN 200961582Y
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- China
- Prior art keywords
- water
- vacuum pump
- refrigerator
- temperature
- operating
- 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 - Fee Related
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Abstract
The utility model discloses a liquid-ring vacuum pump cooling device, comprising a cryostat and a temperature control regulator, wherein a water inlet and a water outlet pipelines of the cryostat are separately communicated with a water outlet and a water inlet of the operating water of the liquid-ring vacuum pump; and the temperature control regulator is connected with a driving device of the cryostat and also connected with a temperature detector arranged on the operating water circuit of the vacuum pump. The utility model can control the temperature of the operating water of the vacuum pump within a proper range, thereby insuring the liquid-ring vacuum pump in the ideal operating condition under any environmental temperature, which can effectively enhance the vacuum degree of the condenser in the generating plant and clearly reduce the generating coal consumption of the generating plant.
Description
Technical field
The utility model relates to a kind of cooling unit of operating water of vacuum pump, especially relates to a kind of cooling unit of Nash hytor.
Background technique
The vapour condenser in thermal power plant usually adopts Nash hytor as its device that vacuumizes.Existing Nash hytor is to adopt water-water heat exchanger to reduce the working water temperature, and cooling water commonly used is an industrial water, its temperature depends on physical environment, at ambient temperature height in summer, the temperature of cooling water is corresponding just high, the temperature of working water is also just high, operation to vacuum pump is very unfavorable, especially in actual motion, also dirty owing to cooler through regular meeting, stop up or fouling, the operating water of vacuum pump temperature is raise, the heat exchanger of vacuum pump itself holds difference to increase because of fouling causes simultaneously, and along with the approaching saturated vapourizing temperature of work water temperature, its exhaust capacity can constantly descend after operation a period of time, have a strong impact on the vacuum capability of vacuum pump, and cause air accumulation in the vapour condenser, and back pressure raises, and this coal consumption that not only can cause thermal power generation raises, also influence exerting oneself of power station unit when serious, unit operation Economy and Security are seriously descended; The operating water of vacuum pump vapourizing temperature that reaches capacity simultaneously also can cause the vacuum pump impeller cavitation to damage and can't work.
The model utility content
The purpose of this utility model is to overcome the defective of existing Nash hytor cooling system, the water circulating type cooling device for vacuum pump that provides a kind of working water temperature to regulate arbitrarily.
The purpose of this utility model is achieved through the following technical solutions:
It comprises refrigerator, and temperature control damper, the inlet and outlet pipe of described refrigerator are communicated with water intake with water circulating type operating water of vacuum pump water outlet respectively; Described temperature control damper is connected with the drive unit of refrigerator, and is connected with Temperature Detector on being arranged on the operating water of vacuum pump loop.
Described refrigerator can be motor-driven compression-type refrigerator, perhaps absorption chiller.
Preferred version is to set up a bypass that valve is housed on the refrigerator inlet and outlet pipe, and water-water heat exchanger is set on pipeline.Like this, when lower (for example winter), stop the refrigerator operation, open by-pass valve, utilize water-water heat exchanger work, to reach purpose of energy saving as far as possible in ambient temperature.
Refrigerator of the present utility model is by motor driving, because the operating water of vacuum pump loop is provided with Temperature Detector, by Measuring Vacuum working water entering water temp and to fixed temperature, by the temperature control damper output signal drive unit of refrigerator is controlled, and then refrigerating capacity controlled, the operating water of vacuum pump temperature is controlled at suitable scope (being higher than 0 ℃), thereby under any ambient temperature, can both guarantee that Nash hytor is in the ideal operation state, thereby can effectively improve the degree of vacuum of condenser of power plant, obviously reduce the gross coal consumption rate of power station.
This device is on probation in certain power station, obtain very good effect: after this factory uses this device, the condenser vacuum 1kpa that risen, make the gross coal consumption rate 2g/KWh that descended, be equivalent to annual 3600 tons in the mark coal of saving, by 500 yuan of/ton calculating, annual cost-saved 1,800,000 yuan, energy-saving benefit is considerable.
Description of drawings
Fig. 1 is the utility model-embodiment's a formation schematic representation;
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
With reference to accompanying drawing.It comprises refrigerator 1, temperature control damper 7, and the rising pipe 3 of described refrigerator 1 is communicated with the working water water intake of Nash hytor 4, and the rising pipe 5 of Nash hytor 4 is communicated with the water intake of refrigerator 1; Described temperature control damper 7 is connected with the drive unit 2 of refrigerator 1, temperature control damper 7 also be located at operating water of vacuum pump rising pipe 3 on Temperature Detector 8 be connected; Nash hytor 4 is connected with vapour condenser 9.10 is by-pass valve, and 11 is water-water heat exchanger, in ambient temperature lower (for example winter), can open by-pass valve 10, stops refrigerator 1 operation, only utilizes water-water heat exchanger 11 work, to reach purpose of energy saving as far as possible.
Claims (3)
1, a kind of cooling unit of Nash hytor is characterized in that, comprises refrigerator, and temperature control damper, the inlet and outlet pipe of described refrigerator are communicated with water intake with Nash hytor working water water outlet respectively; Described temperature control damper is connected with the drive unit of refrigerator, and is connected with Temperature Detector on being arranged on the operating water of vacuum pump loop.
2, the cooling unit of water circulating type vacuum pump according to claim 1 is characterized in that, described refrigerator is motor-driven compression-type refrigerator, perhaps absorption chiller.
3, the cooling unit of water circulating type vacuum pump according to claim 1 and 2 is characterized in that, described refrigerator inlet and outlet pipe is provided with a bypass that valve is housed, and pipeline is provided with water-water heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620052506 CN200961582Y (en) | 2006-10-17 | 2006-10-17 | Water circulation type vacuum pump cooling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620052506 CN200961582Y (en) | 2006-10-17 | 2006-10-17 | Water circulation type vacuum pump cooling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200961582Y true CN200961582Y (en) | 2007-10-17 |
Family
ID=38798097
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620052506 Expired - Fee Related CN200961582Y (en) | 2006-10-17 | 2006-10-17 | Water circulation type vacuum pump cooling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200961582Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101871714A (en) * | 2010-06-24 | 2010-10-27 | 宁波明欣化工机械有限责任公司 | Vacuumizing recycled water cooling process system |
| CN101532508B (en) * | 2008-03-14 | 2011-08-10 | 田智慧 | Control system for reducing temperature and saving energy of operating water of vacuum pump |
| CN101660532B (en) * | 2008-08-29 | 2012-04-18 | 中国科学院沈阳科学仪器研制中心有限公司 | Water-cooling system of multi-stage dry vacuum pump |
-
2006
- 2006-10-17 CN CN 200620052506 patent/CN200961582Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101532508B (en) * | 2008-03-14 | 2011-08-10 | 田智慧 | Control system for reducing temperature and saving energy of operating water of vacuum pump |
| CN101660532B (en) * | 2008-08-29 | 2012-04-18 | 中国科学院沈阳科学仪器研制中心有限公司 | Water-cooling system of multi-stage dry vacuum pump |
| CN101871714A (en) * | 2010-06-24 | 2010-10-27 | 宁波明欣化工机械有限责任公司 | Vacuumizing recycled water cooling process system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071017 Termination date: 20091117 |