CN203420744U - Shaft seal heater - Google Patents
Shaft seal heater Download PDFInfo
- Publication number
- CN203420744U CN203420744U CN201320462908.5U CN201320462908U CN203420744U CN 203420744 U CN203420744 U CN 203420744U CN 201320462908 U CN201320462908 U CN 201320462908U CN 203420744 U CN203420744 U CN 203420744U
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- Prior art keywords
- shell
- water
- tube
- seal
- heater
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- Expired - Fee Related
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Abstract
The utility model relates to a shaft seal heater which comprises a tube shell, a copper tube and a steam leakage tube communicated with the tube shell. The shaft seal heater further comprises a water drainage tube connected to the lowest point of the tube shell, the water drainage tube is connected with a U-type water seal, U-type sections and reversed-U-type sections of the U-type water seal are alternatively and continuously distributed, a water drainage channel is formed by the water drainage tube and the U-type water seal, and the highest point of the water drainage channel is lower than the lowest point of the tube shell.
Description
Technical field
The utility model belongs to steam turbine draining field, is specifically related to gland heater.
Background technique
Gland heater is to reclaim gland packing leakage and utilize its heat to carry out the device of heat-setting water, reduces energy loss, improves generatine set heat efficiency.When steam turbine adopts internal drainage type gland seal system, generally establish gland heater (being also shaft sealing cooler) and be used for heat-setting water or demineralized water, reclaim gland packing leakage, thus minimizing gland packing leakage and heat loss, and improve the environmental conditions in workshop.The air entering with gland packing leakage, guides to water-jetting steam extractor diffuser pipe place conventional connecting tube, and the negative pressure of latter extracts, thereby guarantees the micro-vacuum state of gland heater.Like this, the chamber pressure that each shaft seal is connected with gland heater reduces, and shaft seal vapour does not leak.Also have and utilize shaft seal air ejector or induced draft fan to manufacture negative pressure, discharge to mix air.
Gland heater adopts shell-and-tube heat exchanger or plate type heat exchanger conventionally, gland packing leakage is walked the shell of heat exchanger, water of condensation or Heze demineralized water are walked copper pipe, gland packing leakage and water of condensation or demineralized water carry out can condensing into liquid residue in shell after heat exchange heat-setting water, can not discharge in time, more and more when the liquid condensing of gland packing leakage institute heat exchange, when water flooding copper pipe, can greatly reduce gland heater heat-transfer effect.
Summary of the invention
The technical problems to be solved in the utility model is to provide the residual gland heater that does not affect heat exchange efficiency of no liquid in a kind of shell.
In order to solve the problems of the technologies described above, the utility model provides following technological scheme:
Technological scheme one: gland heater, comprise shell, copper pipe and with the leakage steam pipe road of shell UNICOM, also comprise the drain water piping that is connected to shell minimum point; Drain water piping is connected with U-shaped water seal, and U-shaped water seal is just being, inverted U section is alternately arranged continuously; Drain water piping and U-shaped water seal form hydrophobic channel, and its peak is lower than the minimum point of shell.
Such scheme adds drain water piping, U-shaped water seal according to cross over pipe principle in the minimum point of gland heater shell, both actings in conjunction are discharged shell in time by leaking the water that vapour condenses in gland heater shell, the peak of drain water piping makes the water that leak vapour condenses can not remain in shell lower than the layout of the minimum point of shell, as long as the water after leaking vapour and condensing appears in shell and will discharge by drain water piping, the water after anti-leak-stopping vapour condenses is contained in the copper pipe that floods heater in shell affects heat exchange efficiency; The setting of U-shaped water seal has avoided the air of outside by drain water piping, to enter the heat exchange efficiency that affects whole gland heater in gland heater.
Technological scheme two: the minimum point of just U-shaped section of the U-shaped water seal in technological scheme one is connected with blowdown valve; The peak of its inverted U section is connected with anti-siphonage pipe.The setting of blowdown valve is in order to discharge and to leak other foreign material that mingle in vapour timely, preventing that the whole hydrophobic channel of these foreign material betting contests from affecting the heat exchange work of gland heater; Anti-siphonage pipe is the parts with the common collaborative work of blowdown valve, and anti-siphonage pipe effect when blowdown valve is opened allows retain certain water in U-shaped water seal and prevent that air from entering in heater.
Technological scheme three: for the water of condensation of leaking after vapour condenses is carried out utilizing, the utilization ratio of the energy used is maximized to hydrophobic channel UNICOM circulating water pool.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model gland heater.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail:
As shown in Figure 1, gland heater, comprise shell 1, copper pipe 2 and with the leakage steam pipe road 3 of shell 1 UNICOM, be connected to the drain water piping 5 of shell 1 minimum point; Drain water piping 5 is connected with U-shaped water seal, and U-shaped water seal is just being, inverted U section is alternately arranged continuously, and the minimum point of just U-shaped section of U-shaped water seal is connected with blowdown valve 6; The peak of its inverted U section is connected with anti-siphonage pipe 4.The hydrophobic channel that drain water piping 5 and U-shaped water seal form, its peak is lower than the minimum point of shell, the water of condensation of power plant or demineralized water enter into copper pipe 2 from intake pipe 21, through leak vapour in heater with copper pipe in fluid carry out after heat exchange, from outlet conduit 22, flow out, the water of condensation of leaking after vapour condenses recycles in circulating water pool through hydrophobic channel water conservancy diversion.
The present embodiment adds drain water piping 5, U-shaped water seal according to cross over pipe principle in the minimum point of gland heater shell 1, both actings in conjunction are discharged shell 1 in time by leaking the water that vapour condenses in gland heater shell, the peak of drain water piping 5 makes the water that leak vapour condenses can not remain in shell 1 lower than the layout of the minimum point of shell 1, as long as the water after leaking vapour and condensing appears in shell 1 and will discharge by drain water piping 5, the water after anti-leak-stopping vapour condenses is contained in the copper pipe 2 that floods heater in shell 1 affects heat exchange efficiency; The setting of U-shaped water seal has avoided the air of outside by drain water piping 5, to enter the heat exchange efficiency that affects whole gland heater in gland heater, when other foreign material that mingle in vapour are leaked in discharge, open blowdown valve 6 and discharge the foreign material in hydrophobic channels closing anti-siphonage pipe 4, also avoided air to enter heater through hydrophobic channel.
Above-described is only preferred implementation of the present utility model, should be understood that for a person skilled in the art, not departing under the prerequisite of the utility model structure, can also make some distortion and improvement, these can not affect effect and practical applicability that the utility model is implemented.
Claims (3)
1. gland heater, comprise shell, copper pipe and with the leakage steam pipe road of shell UNICOM, it is characterized in that: also comprise the drain water piping that is connected to shell minimum point; Drain water piping is connected with U-shaped water seal, and U-shaped water seal is just being, inverted U section is alternately arranged continuously; Drain water piping and U-shaped water seal form hydrophobic channel, and its peak is lower than the minimum point of shell.
2. gland heater according to claim 1, is characterized in that: the minimum point of just U-shaped section of described U-shaped water seal is connected with blowdown valve; The peak of its inverted U section is connected with anti-siphonage pipe.
3. gland heater according to claim 1, is characterized in that: described hydrophobic channel UNICOM circulating water pool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320462908.5U CN203420744U (en) | 2013-07-31 | 2013-07-31 | Shaft seal heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320462908.5U CN203420744U (en) | 2013-07-31 | 2013-07-31 | Shaft seal heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203420744U true CN203420744U (en) | 2014-02-05 |
Family
ID=50019843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320462908.5U Expired - Fee Related CN203420744U (en) | 2013-07-31 | 2013-07-31 | Shaft seal heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203420744U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103883366A (en) * | 2014-04-11 | 2014-06-25 | 大唐韩城第二发电有限责任公司 | Small steam turbine condensate system of air cooling unit |
| CN105089712A (en) * | 2014-05-23 | 2015-11-25 | 国网山西省电力公司电力科学研究院 | Multilevel water seal system |
| CN109339877A (en) * | 2018-10-25 | 2019-02-15 | 中国能源建设集团陕西省电力设计院有限公司 | A kind of coal base distributing-supplying-energy system |
| CN111197936A (en) * | 2020-02-28 | 2020-05-26 | 北京京能燕开综合能源服务有限公司 | Heat exchanger |
| CN113266432A (en) * | 2021-04-07 | 2021-08-17 | 邯郸新兴发电有限责任公司 | Online sewage draining and sealing device |
-
2013
- 2013-07-31 CN CN201320462908.5U patent/CN203420744U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103883366A (en) * | 2014-04-11 | 2014-06-25 | 大唐韩城第二发电有限责任公司 | Small steam turbine condensate system of air cooling unit |
| CN103883366B (en) * | 2014-04-11 | 2015-12-09 | 大唐韩城第二发电有限责任公司 | A kind of little steam turbine condensate system of Air-cooled Unit |
| CN105298563A (en) * | 2014-04-11 | 2016-02-03 | 大唐韩城第二发电有限责任公司 | Condensate water system of air cooling unit |
| CN105298563B (en) * | 2014-04-11 | 2017-02-01 | 大唐韩城第二发电有限责任公司 | Condensate water system of air cooling unit |
| CN105089712A (en) * | 2014-05-23 | 2015-11-25 | 国网山西省电力公司电力科学研究院 | Multilevel water seal system |
| CN109339877A (en) * | 2018-10-25 | 2019-02-15 | 中国能源建设集团陕西省电力设计院有限公司 | A kind of coal base distributing-supplying-energy system |
| CN109339877B (en) * | 2018-10-25 | 2021-07-30 | 中国能源建设集团陕西省电力设计院有限公司 | Coal-based distributed energy supply system |
| CN111197936A (en) * | 2020-02-28 | 2020-05-26 | 北京京能燕开综合能源服务有限公司 | Heat exchanger |
| CN113266432A (en) * | 2021-04-07 | 2021-08-17 | 邯郸新兴发电有限责任公司 | Online sewage draining and sealing device |
| CN113266432B (en) * | 2021-04-07 | 2022-08-23 | 邯郸新兴发电有限责任公司 | Online sewage draining and sealing device |
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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: 20140205 Termination date: 20180731 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |