CN201739234U - Compression refrigeration device additionally arranged on vacuum pump - Google Patents
Compression refrigeration device additionally arranged on vacuum pump Download PDFInfo
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- CN201739234U CN201739234U CN2010202334377U CN201020233437U CN201739234U CN 201739234 U CN201739234 U CN 201739234U CN 2010202334377 U CN2010202334377 U CN 2010202334377U CN 201020233437 U CN201020233437 U CN 201020233437U CN 201739234 U CN201739234 U CN 201739234U
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- vacuum pump
- heat exchanger
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- steam
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Abstract
The utility model discloses a compression refrigeration device additionally arranged on a vacuum pump, which comprises a water ring vacuum pump, a heat exchanger and a steam-water separator, wherein an air inlet pipe of the water ring vacuum pump is communicated with an air outlet pipe of the heat exchanger; the steam-water separator is communicated with an exhaust hole of the water ring vacuum pump; an outlet of the steam-water separator is communicated with an air inlet pipe of the heat exchanger; an adjusting valve is arranged between the water ring vacuum pump and the heat exchanger; a water cooling unit and the adjusting valve are arranged in parallel; a water inlet pipe of the water cooling unit is communicated with the air outlet pipe of the heat exchanger; and the end of a water outlet pipe is communicated with the end of the air inlet pipe of the water ring vacuum pump. The compression refrigeration device additionally arranged on the vacuum pump has the benefits of preventing the occurrence of seal water vaporization, guaranteeing good working state and service life of the water ring vacuum pump, leading the cooling work mode of the vacuum pump of a generator set to well operate, and improving the economical efficiency.
Description
Technical field
The utility model relates to generating cooling technology field, for power station water-cooled circuit technological improvement, is specially vacuum pump and installs compression refrigerating apparatus additional.
Background technique
The condenser vacuum system of Generator Set is at present more, and to use eccentric Nash hytor, its advantage be that the energy consumption of its unit's of taking out dry air amount is lower.But in actual motion, the serious decline of exhaust capacity takes place and the higher phenomenon of exhaust steam pressure that causes in regular meeting.People are usually the higher problem that is attributed to vapour condenser itself of unit exhaust steam pressure, and are less than normal etc. as higher, the copper pipe fouling of water temperature in summer, rubbish obstruction, circulating water flow, and can not suspect what problem vacuum pump has.Power Plant, supporting three Nash hytors of every unit of its condenser vacuum system, wherein one standby, starting and also can three during the vapour condenser mis-behave putting into operation simultaneously.Unit is after a period of time of putting into operation, and exhaust steam pressure obviously raises, and after condenser was cleaned, its vacuum values did not reach the index when just having put into operation yet.Show as back pressure and rise, unit output obviously descends, and the unit undercapacity produces a very large impact performance driving economy when serious.
Analyze through on-the-spot actual test and inspection, confirm that main cause is not the problem of circulating water temperature or condenser itself, but the reason of vacuum pump cooling system, because the temperature of vacuum pump sealing water is too high, vaporization reaches capacity, have a strong impact on the vacuum capability of vacuum pump, cause air accumulation in the vapour condenser, back pressure raises.In overhaul, vacuum pump is carried out strip inspection, find its impeller cavitation well damage, further proved the fact of its sealing water vapor.
Vacuum pump is cooled off by the Industrial Closed cooling water, though the vacuum pump sealing water can the value of reaching capacity in design, but in actual motion, because holding difference because of fouling, the plate type heat exchanger of Industrial Closed cooling water system and vacuum pump itself increases, add that the sealing super cooling degree of water did not just have safe clearance originally in the design, therefore after operation a period of time, will go wrong.As not noted, not only have a strong impact on exerting oneself of unit, the unit operation Economy is seriously descended, and because the sealing water vapor also can cause the vacuum pump impeller cavitation to be damaged.
Present domestic employing Nash hytor is very general, but to the normal operation of its cooling system and to the unit back pressure and the significant impact that causes of exerting oneself often out in the cold, even do not recognize this problem at all.Attention that should be enough in design and actual motion.
The model utility content
Technical problem to be solved in the utility model is, improve existing generator set vacuum pump mode of operation, install compression refrigerating apparatus additional, and then the Subcoold temperature of control cooling water, avoid because the sealing water vapor causes the vacuum pump impeller cavitation to damage and then occur the situation generation of unit output deficiency.
For the scheme that solves the problems of the technologies described above employing is:
The vacuum pump that provides installs compression refrigerating apparatus additional, comprise water ring vaccum pump, heat exchanger, and steam-water separator, wherein, the water ring vaccum pump suction tude is communicated with the steam outlet pipe of heat exchanger, steam-water separator is communicated with the water ring vaccum pump relief opening, the outlet of steam-water separator is communicated with the suction tude of heat exchanger, be provided with modulating valve between water ring vaccum pump and heat exchanger, be arranged in parallel handpiece Water Chilling Units with this modulating valve, the handpiece Water Chilling Units intake pipe is communicated with the steam outlet pipe of heat exchanger, and the water outlet pipe end is communicated with the air inlet pipe end of water ring vaccum pump.
Described handpiece Water Chilling Units intake pipe, outlet pipe are equipped with gate valve on going out, and install the pressure gauge of compression refrigerating apparatus internal air pressure variation and the thermometer of temperature variation additional in order to the monitoring vacuum pump; Described handpiece Water Chilling Units comprises plate type heat exchanger that is used for refrigeration cycle water and the water pump that drives circulating water, and water pump is arranged on the interior outlet pipe of handpiece Water Chilling Units.
The good effect that the utility model vacuum pump installs compression refrigerating apparatus additional is: add compression refrigerating apparatus in the pipeline of circulation sealing, it is handpiece Water Chilling Units, when temperature and air pressure depart from normal state in the pipeline that monitors the circulation sealing, start handpiece Water Chilling Units in order to regulate the Subcoold temperature of vacuum pump sealing water, and then the generation of pre-anti-seal water vapor situation, the works fine state and the life-span of water ring vaccum pump have also been guaranteed, make generator set vacuum pump cooling work pattern enter optimum running, Economy can promote.
Description of drawings
Fig. 1, the utility model vacuum pump install the connection diagram of compression refrigerating apparatus additional.
Embodiment
Vacuum pump as schematically shown in Figure 1 installs compression refrigerating apparatus additional, comprise water ring vaccum pump 1, heat exchanger 2, with steam-water separator 3, wherein, water ring vaccum pump 1 suction tude is communicated with the steam outlet pipe of heat exchanger 2, steam-water separator 3 is communicated with water ring vaccum pump 1 relief opening, the outlet of steam-water separator 3 is communicated with the suction tude of heat exchanger 2,2 on water ring vaccum pump 1 and heat exchanger are provided with modulating valve 5, be arranged in parallel handpiece Water Chilling Units 4 with this modulating valve 5, handpiece Water Chilling Units 4 intake pipes are communicated with the steam outlet pipe of heat exchanger 2, and the water outlet pipe end is communicated with the air inlet pipe end of water ring vaccum pump 1.
Described handpiece Water Chilling Units 4 intake pipes, outlet pipe are equipped with gate valve 6 on going out, and install the pressure gauge 7 of compression refrigerating apparatus internal air pressure variation and the thermometer 8 of temperature variation additional in order to the monitoring vacuum pump; Described handpiece Water Chilling Units 4 comprises plate type heat exchanger 42 that is used for refrigeration cycle water and the water pump 41 that drives circulating water, and water pump 41 is arranged on the outlet pipe in the handpiece Water Chilling Units 4.
The above is embodiment of the present utility model only, is not limited to the utility model, and for a person skilled in the art, the utility model can have various changes and variation.All within spirit of the present utility model and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within the claim scope of the present utility model.
Claims (2)
1. vacuum pump installs compression refrigerating apparatus additional, comprise water ring vaccum pump (1), heat exchanger (2), and steam-water separator (3), wherein, water ring vaccum pump (1) suction tude is communicated with the steam outlet pipe of heat exchanger (2), steam-water separator (3) is communicated with water ring vaccum pump (1) relief opening, the outlet of steam-water separator (3) is communicated with the suction tude of heat exchanger (2), it is characterized in that: be provided with modulating valve (5) between water ring vaccum pump (1) and heat exchanger (2), be arranged in parallel handpiece Water Chilling Units (4) with this modulating valve (5), handpiece Water Chilling Units (4) intake pipe is communicated with the steam outlet pipe of heat exchanger (2), and the water outlet pipe end is communicated with the air inlet pipe end of water ring vaccum pump (1).
2. vacuum pump according to claim 1 installs compression refrigerating apparatus additional, it is characterized in that described handpiece Water Chilling Units (4) intake pipe, outlet pipe are equipped with gate valve (6) on going out, and install the pressure gauge (7) of compression refrigerating apparatus internal air pressure variation and the thermometer (8) of temperature variation additional in order to the monitoring vacuum pump; Described handpiece Water Chilling Units (4) comprises plate type heat exchanger (42) that is used for refrigeration cycle water and the water pump (41) that drives circulating water, and water pump (41) is arranged on the interior outlet pipe of handpiece Water Chilling Units (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202334377U CN201739234U (en) | 2010-06-23 | 2010-06-23 | Compression refrigeration device additionally arranged on vacuum pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202334377U CN201739234U (en) | 2010-06-23 | 2010-06-23 | Compression refrigeration device additionally arranged on vacuum pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201739234U true CN201739234U (en) | 2011-02-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202334377U Expired - Fee Related CN201739234U (en) | 2010-06-23 | 2010-06-23 | Compression refrigeration device additionally arranged on vacuum pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201739234U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104296554A (en) * | 2014-10-10 | 2015-01-21 | 张邵波 | Steam condensing type power station steam condenser chamber vacuumizing system |
| CN111828322A (en) * | 2020-06-29 | 2020-10-27 | 武汉助力节能环保技术服务有限公司 | Vacuumizing device for steam turbine condenser |
-
2010
- 2010-06-23 CN CN2010202334377U patent/CN201739234U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104296554A (en) * | 2014-10-10 | 2015-01-21 | 张邵波 | Steam condensing type power station steam condenser chamber vacuumizing system |
| CN111828322A (en) * | 2020-06-29 | 2020-10-27 | 武汉助力节能环保技术服务有限公司 | Vacuumizing device for steam turbine condenser |
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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: 20110209 Termination date: 20160623 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |