CN2932094Y - Exhaust steam recovery device of power boiler deaerator - Google Patents
Exhaust steam recovery device of power boiler deaerator Download PDFInfo
- Publication number
- CN2932094Y CN2932094Y CN 200620073066 CN200620073066U CN2932094Y CN 2932094 Y CN2932094 Y CN 2932094Y CN 200620073066 CN200620073066 CN 200620073066 CN 200620073066 U CN200620073066 U CN 200620073066U CN 2932094 Y CN2932094 Y CN 2932094Y
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- heat exchanger
- water
- power boiler
- oxygen
- vapor
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Abstract
The utility model discloses a power boiler deaerator vapor recovery unit comprising a deaerator which is connected with a water replenishing channel and supplies the deoxidized water to the power boiler, wherein a heat exchanger is arranged on the vapor discharging port of the deaeraor which discharges the vapor through the hear exchanger of which the cooling water export of the heat exchanger is communicated with the cooling water recovering main pipe, the vapor discharging of the heat exchanger is communicated with a hydrophobic dilator through which the vapor is discharged, and the hot water export of the heat exchanger is communicated with the water replenishing pipe which supplies water to the deaeretor. The utility model is capable of recovering cooling water, utilizing discharged vapor to heat the power boiler water, reclaiming heat energy, and eliminating vapor discharging noise. The utility model is widely applicable to power boiler deaerator vapor.
Description
One, technical field
The utility model relates to a kind of boiler feed steam discharge retracting device, specifically a kind of novel power plant's power boiler deaerator exhaust retracting device.
Two, background technology
Oxygen-eliminating device is one of requisite operational outfit of power plant's power boiler, and major function is deoxygenation to be carried out in boiler feedwater handle back formation boiler feedwater.If contain oxygen in the boiler feedwater, feedwater piping, boiler plant and Turbine Flow Path are corroded, shorten equipment life.(operational factor 2.0Barg～5.0Barg) the run duration steam discharge directly enters atmosphere to middle pressure oxygen-eliminating device.There is following shortcoming in the oxygen-eliminating device that uses at present: 1, steam discharge has certain heat content, and directly emptying causes heat waste; 2, directly emptying causes, working medium (condensed water) waste; 3, the steam drain noise is bigger.
Three, summary of the invention
The purpose of this utility model provides a kind of power plant power boiler deaerator exhaust retracting device, and this steam discharge retracting device is transformed existing oxygen-eliminating device system, increases by a cover heat-exchange device, can eliminate the steam discharge noise when reclaiming heat.
The purpose of this utility model is achieved through the following technical solutions:
A kind of power boiler deaerator exhaust retracting device comprises oxygen-eliminating device, and this oxygen-eliminating device is connected with the make-up water pipeline and the water after the deoxygenation is supplied with power boiler, and it is characterized in that: the place is provided with heat exchanger at the deaerator exhaust mouth, and oxygen-eliminating device is by the heat exchanger steam discharge; The condensation-water drain of heat exchanger reclaims female pipe with condensed water and is connected; The steam drain of heat exchanger is connected with hydrophobic expansion tank, and by hydrophobic expansion tank steam discharge; The heat exchanger hot water outlet is connected with the make-up water pipeline that supplies water to oxygen-eliminating device.
According to the concrete condition at scene, the heat exchanger in the utility model can be a kind of in horizontal or vertical.When adopting vertical heat exchanger, be provided with flow apron in heat exchanger air intake inside.
Described heat exchanger can adopt the fixed tube sheet type structure, is provided with to prevent the expansion joint that expands with heat and contract with cold on the housing of heat exchanger.
The utility model is transformed existing oxygen-eliminating device system on existing make-up water pipeline, vapour system, deoxygenation water tank and top box foundation, increases by a cover heat-exchange device, and it is by heat exchanger, hydrophobic expansion tank, and corresponding pipeline connects to form.Compared with prior art, the utility model has the advantages that: 1, can reclaim condensed water; 2, can utilize steam discharge heating boiler make-up water, reclaim heat; 3, can eliminate the steam discharge noise.
The utility model structural design compactness, reasonable, arrangement can change flexibly according to field condition, need not go up perforate at deoxygenation water tank (pressure vessel), the bidding formality is simple, adopt the dish valve, it is little to take up room, and the feasibility of improving on existing system is good; Adopt the utility model method of operation flexible, just in case the heat exchanger leakage takes place, can complete online isolation, do not influence boiler and normally move; Thereby, the utlity model has good rate of return on investment, once improvement, sustainable profit.
Four, description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the process principle figure of heat exchanger in the utility model;
Five, the specific embodiment
Below in conjunction with accompanying drawing the utility model is elaborated.
A kind of power boiler deaerator exhaust retracting device, comprise oxygen-eliminating device 21, this oxygen-eliminating device 21 is connected with make-up water pipeline 22 and the water after the deoxygenation is supplied with power boiler, and 21 steam drain places are provided with heat exchanger 23 at oxygen-eliminating device, and oxygen-eliminating device leads to 21 over-heat-exchangers, 23 steam discharges; The condensation-water drain of heat exchanger 23 reclaims female pipe 24 with condensed water and is connected; The steam drain of heat exchanger 23 is connected with hydrophobic expansion tank 25, and by hydrophobic expansion tank 25 steam discharges; Heat exchanger 23 hot water outlets are connected with the make-up water pipeline 22 that supplies water to oxygen-eliminating device 21.All adopt pipeline to connect between various device.
When heat exchanger designs, can adopt horizontal and vertical two kinds of forms according to the situation at scene.On vertical layout, it is close to advance the steam drain absolute altitude, in order to prevent that into steam discharge can be at air intake internal placement flow apron directly to wearing.
The heat exchanger pattern adopts fixed tube sheet type, considers to expand with heat and contract with cold, and increases by an expansion joint on housing.
The utility model is to increase heat exchanger part and condensed water recovery section (dotted portion) on original system (solid line part) basis, sees Fig. 1, specifies as follows:
In the technology before transforming: make-up water enters oxygen-eliminating device 21 through gate valve 4 (often opening), gate valve 5 (often opening), control valve 6 with gate valve 7 (often opening).Oxygen-eliminating device 21 steam discharges are to enter atmosphere through isolating valve 10 (often opening).
Flow process is in the utility model: the A pipeline of naming a person for a particular job cuts off before gate valve 4, inserts threeway, and branch line is set, and with heat exchanger 23 accesses, (B point) is provided with threeway between gate valve 4 and gate valve 5, takes back pipeline from this.Gate valve 1 is often opened with gate valve 3 during the new technological process operation, and gate valve 4 is normally closed.Oxygen-eliminating device 21 steam discharges enter heat exchanger 23 through gate valve 8 (often opening), enter hydrophobic expansion tank 25 through gate valve 9 again, enter atmosphere at last, and isolating valve 10 is in service at new technological process to be normally closed.Heat exchanger 23 hydrophobic process isolating valves 2 enter condensed water with isolating valve 11 and reclaim female pipe 22.The hydrophobic expansion tank 25 hydrophobic condensation jellyfish pipes 22 that enter are recovered.
When normal the use, just in case taking place, heat exchanger 23 leaks, can not stop to open gate valve 4 under the make-up water situation, closing gate valve 1 and gate valve 3 are opened isolating valve 10, close isolating valve 8 and isolating valve 9, and new system is isolated fully, do not influence boiler operatiopn.
In actual use, according to on-line monitoring, the dissolved oxygen amount of boiler feedwater meets service requirement fully.Condensed water recovery aspect, the rate of recovery reaches more than 90%, and steam drain is visual not to have been had steam and has discharged; The boiler feedwater temperature increase 0.5 ℃; Aspect noise control, about 30 decibels have been reduced.
Claims (4)
1, a kind of power boiler deaerator exhaust retracting device, comprise oxygen-eliminating device (21), this oxygen-eliminating device (21) is connected with make-up water pipeline (22) and the water after the deoxygenation is supplied with power boiler, it is characterized in that: the steam drain place is provided with heat exchanger (23) at oxygen-eliminating device (21), and oxygen-eliminating device (21) is by heat exchanger (23) steam discharge; The condensation-water drain of heat exchanger (23) reclaims female pipe (24) with condensed water and is connected; The steam drain of heat exchanger (23) is connected with hydrophobic expansion tank (25), and by hydrophobic expansion tank (25) steam discharge; Heat exchanger (23) hot water outlet is connected with the make-up water pipeline (22) that supplies water to oxygen-eliminating device (21).
2, power boiler deaerator exhaust retracting device according to claim 1 is characterized in that: described heat exchanger (23) can be a kind of in horizontal or vertical.
3, power boiler deaerator exhaust retracting device according to claim 2 is characterized in that: be provided with flow apron in vertical heat exchanger (23) air intake inside.
4, power boiler deaerator exhaust retracting device according to claim 1 is characterized in that: described heat exchanger (23) adopts fixed tube sheet type, is provided with to prevent the expansion joint that expands with heat and contract with cold on the housing of heat exchanger (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620073066 CN2932094Y (en) | 2006-04-30 | 2006-04-30 | Exhaust steam recovery device of power boiler deaerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620073066 CN2932094Y (en) | 2006-04-30 | 2006-04-30 | Exhaust steam recovery device of power boiler deaerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2932094Y true CN2932094Y (en) | 2007-08-08 |
Family
ID=38348591
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620073066 Expired - Fee Related CN2932094Y (en) | 2006-04-30 | 2006-04-30 | Exhaust steam recovery device of power boiler deaerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2932094Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101846330A (en) * | 2010-06-23 | 2010-09-29 | 魏熙臣 | Steam supply system for steam air heater of utility boiler |
| CN101846329A (en) * | 2010-06-23 | 2010-09-29 | 魏熙臣 | Draining system for steam air heater of utility boiler |
| CN103292311A (en) * | 2013-05-31 | 2013-09-11 | 际华三五三九制鞋有限公司 | Heat filler type deaerator with stable deaerating function and atomizing function |
-
2006
- 2006-04-30 CN CN 200620073066 patent/CN2932094Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101846330A (en) * | 2010-06-23 | 2010-09-29 | 魏熙臣 | Steam supply system for steam air heater of utility boiler |
| CN101846329A (en) * | 2010-06-23 | 2010-09-29 | 魏熙臣 | Draining system for steam air heater of utility boiler |
| CN101846330B (en) * | 2010-06-23 | 2011-07-27 | 魏熙臣 | Steam supply system for steam air heater of utility boiler |
| CN103292311A (en) * | 2013-05-31 | 2013-09-11 | 际华三五三九制鞋有限公司 | Heat filler type deaerator with stable deaerating function and atomizing function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: JINDONG PAPER (JIANGSU) CO. Free format text: FORMER NAME OR ADDRESS: JINDONG PAPER INDUSTRY (JIANGSU) CO. LTD. |
|
| CP03 | Change of name, title or address |
Address after: Zhenjiang, Jiangsu Province, Dagang Road, Dagang 8, zip code: 212132 Patentee after: Gold East Paper (Jiangsu) Co., Ltd. Address before: Zhenjiang, Jiangsu Province, Dagang Road, Dagang 8, zip code: 212132 Patentee before: Jindong Paper Industry (Jiangsu) Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070808 Termination date: 20150430 |
|
| EXPY | Termination of patent right or utility model |