CN205655277U - Water system in small -size power plant boiler start -up - Google Patents
Water system in small -size power plant boiler start -up Download PDFInfo
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- CN205655277U CN205655277U CN201620443353.3U CN201620443353U CN205655277U CN 205655277 U CN205655277 U CN 205655277U CN 201620443353 U CN201620443353 U CN 201620443353U CN 205655277 U CN205655277 U CN 205655277U
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Abstract
The utility model discloses a last water system of boiler starting, including demineralized water feeding device, condenser and boiler economizer, demineralized water feeding device and condenser are linked together, the condenser is linked together through condensate pipeline and high -pressure water feeding pipe, high pressure water feeding pipe and boiler economizer are linked together, be equipped with a flow measurement orifice plate of series connection between demineralized water feeding device and the condenser, first vacuum stop valve, first electrical control valve and first stop valve, the first vacuum stop valve of establishing ties, first electrical control valve and first stop valve and second vacuum stop valve are parallelly connected. Compared with the prior art, the utility model discloses a demineralized water feeding device sails upstream, and the demineralized water at first supplyes the condenser, and demineralized water in the condenser passes through condensate pipeline and high -pressure water feeding pipe and reachs boiler economizer and sail upstream for the boiler. The system need not increase the charging pump alone, utilizes present equipment and pipeline basis to set up the start -up and goes up the water system, has avoided the unnecessary wasting of resources.
Description
Technical field
This utility model relates to boiler startup water-feeding system, particularly relates to a kind of small hydropower station boiler startup water-feeding system.
Background technology
Water on the boiler startup in Conventional compact power station, is to utilize drainage pump to be dredged by boiler by the water in drain tank before boiler startup
Discharge water and blow-off line is to boiler water filling, but the hydrophobic amount of some small hydropower station is less, recycle and be worth not quite, in order to save throwing
Money, simplified system, no longer arrange drain tank, the relevant tubing of drainage pump, if in order to water individually increases on boiler startup
Water pump causes again equipment to leave unused for a long time.
Utility model content
The purpose of this utility model is, it is provided that a kind of small hydropower station boiler startup water-feeding system, uses native system rationally to control
Make this, it is to avoid unnecessary waste, and disclosure satisfy that the upper water requirement of boiler startup.
For solving above-mentioned technical problem, this utility model adopts the following technical scheme that:
A kind of boiler startup water-feeding system, including demineralized water feedway, condenser and boiler economizer, demineralized water feedway
Being connected with condenser, condenser is connected with high-pressure feed water pipeline by condensing water conduit, and high-pressure feed water pipeline and boiler save coal
Device is connected, be provided with between demineralized water feedway and condenser the first flow measuring diaphragm of series connection, the first vaccum stop valve,
First electric control valve and gate valve, the first vaccum stop valve of series connection, the first electric control valve and gate valve and the second vaccum stop valve
In parallel.
In aforesaid a kind of boiler startup water-feeding system, the condensing water conduit in condenser downstream is provided with two valve groups of parallel connection, institute
State the 3rd vaccum stop valve that two valve groups all include being sequentially connected in series, pump intake filter screen, condensate pump, the first check-valves and first
Electric check valve.
In aforesaid a kind of boiler startup water-feeding system, the condensing water conduit in described valve group downstream is provided with the second being sequentially connected in series
Measurement orifice plate, stop valve, the second check-valves, relief valve and the second electric check valve.
In aforesaid a kind of boiler startup water-feeding system, high-pressure feed water pipeline be provided be sequentially connected in series the 3rd flow measurement orifice plate,
3rd check-valves and the first electric gate valve.
In aforesaid a kind of boiler startup water-feeding system, high-pressure feed water pipeline is provided with the second electric control valve being arranged in series and the
Two electric gate valves, the 3rd electric control valve being arranged in series and the 3rd electric gate valve and described the second electric control valve being arranged in series
It is arranged in parallel with the second electric gate valve.
3rd electric control valve, for starting operation bypass valve, uses during water on boiler startup, and effect is regulation boiler startup
Confluent, because of start confluent be far smaller than boiler properly functioning time confluent, so arrange this pipe with small pipe diameter bypass meet start
The regulation requirement of confluent；Second electric control valve is that high-pressure feed water regulates valve, regulation boiler feed capacity when effect is up,
Because main feed water pipe road caliber is relatively big, this regulation valve cannot meet the regulation requirement starting confluent, so it is electronic to need to increase the 3rd
Regulation valve.
Compared with prior art, compared with prior art, this utility model uses water on demineralized water feedway to this utility model,
First demineralized water adds to condenser, and the demineralized water in condenser arrives boiler by condensing water conduit and high-pressure feed water pipeline and saves coal
Device is to boiler water filling.System need not individually increase charging pump, utilizes existing equipment and pipeline foundation to set up and starts water-feeding system,
Avoid the unnecessary wasting of resources, and disclosure satisfy that the upper water requirement of boiler startup.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of embodiment of the present utility model.
Reference: 1-condenser, 2-gate valve, 3-the second vaccum stop valve, 4-the first electric control valve, 5-the first vacuum is cut
Only valve, 6-first flow measuring diaphragm, 7-demineralized water feedway, 8-valve group, 9-the 3rd vaccum stop valve, 10-pump intake is filtered
Net, 11-condensate pump, 12-the first check-valves, 13-the first electric check valve, 14-second flow measuring diaphragm, 15-condenses water
Pipeline, 16-stop valve, 17-the second check-valves, 18-relief valve, 19-the second electric check valve, 20-high-pressure feed water pipeline, 21-
3rd flow measurement orifice plate, 22-the second electric gate valve, 23-the 3rd electric gate valve, 24-the second electric control valve, 25-the 3rd electricity
Dynamic regulation valve, 26-the 3rd check-valves, 27-the first electric gate valve, 28-boiler economizer.
With detailed description of the invention, this utility model is further described below in conjunction with the accompanying drawings.
Detailed description of the invention
Embodiment 1 of the present utility model: as it is shown in figure 1, a kind of boiler startup water-feeding system, including demineralized water feedway 7,
Condenser 1 and boiler economizer 28, demineralized water feedway 7 is connected with condenser 1, and condenser 1 passes through condensing water conduit
15 are connected with high-pressure feed water pipeline 20, and high-pressure feed water pipeline 20 is connected with boiler economizer 28, demineralized water feedway 7
And between condenser 1, it is provided with first flow measuring diaphragm the 6, first vaccum stop valve 5, first electric control valve 4 and lock of series connection
Valve 2, first vaccum stop valve the 5, first electric control valve 4 of series connection and gate valve 2 and the second vaccum stop valve 3 are in parallel.
The condensing water conduit 15 in condenser 1 downstream is provided with two valve groups 8 of parallel connection, and said two valve group 8 all includes going here and there successively
3rd vaccum stop valve 9, pump intake filter screen 10, condensate pump the 11, first check-valves 12 and first electric check valve 13 of connection.
The condensing water conduit 15 in described valve group 8 downstream is provided with second flow measuring diaphragm 14, the stop valve 16, second being sequentially connected in series
Check-valves 17, relief valve 18 and the second electric check valve 19.
Embodiment 2: as it is shown in figure 1, a kind of boiler startup water-feeding system, including demineralized water feedway 7, condenser 1 and pot
Stove economizer 28, demineralized water feedway 7 is connected with condenser 1, and condenser 1 is given by condensing water conduit 15 and high pressure
Waterpipe 20 is connected, and high-pressure feed water pipeline 20 is connected with boiler economizer 28, demineralized water feedway 7 and condenser 1
Between be provided with first flow measuring diaphragm the 6, first vaccum stop valve the 5, first electric control valve 4 and the gate valve 2 of series connection, series connection
First vaccum stop valve the 5, first electric control valve 4 and gate valve 2 and the second vaccum stop valve 3 in parallel.
The condensing water conduit 15 in condenser 1 downstream is provided with two valve groups 8 of parallel connection, and said two valve group 8 all includes going here and there successively
3rd vaccum stop valve 9, pump intake filter screen 10, condensate pump the 11, first check-valves 12 and first electric check valve 13 of connection.
The condensing water conduit 15 in described valve group 8 downstream is provided with second flow measuring diaphragm 14, the stop valve 16, second being sequentially connected in series
Check-valves 17, relief valve 18 and the second electric check valve 19.
High-pressure feed water pipeline 20 is provided with the 3rd flow measurement orifice plate the 21, the 3rd check-valves 26 and the first electric brake being sequentially connected in series
Valve 27.High-pressure feed water pipeline 20 is provided with the second electric control valve 24 and the second electric gate valve 22 being arranged in series, and is arranged in series
The 3rd electric control valve 25 and the 3rd electric gate valve 23 and described the second electric control valve 24 and the second electric brake being arranged in series
Valve 22 is arranged in parallel.
The operation principle of a kind of embodiment of the present utility model: provided demineralized water, demineralized water first to mend by demineralized water feedway 7
Being charged to unit oxygen-eliminating device 1, the demineralized water in unit oxygen-eliminating device 1 is saved by condensing water conduit 15, high-pressure feed water pipeline 20 and boiler
Boiler water filling given by coal device 28.System need not individually increase charging pump, but utilizes existing equipment and pipeline foundation to set up in startup
Water system, it is to avoid the unnecessary wasting of resources, and disclosure satisfy that the upper water requirement of boiler startup.
Claims (5)
1. a boiler startup water-feeding system, it is characterised in that include demineralized water feedway (7), condenser (1) and pot
Stove economizer (28), demineralized water feedway (7) is connected with condenser (1), and condenser (1) passes through condensing water conduit
(15) being connected with high-pressure feed water pipeline (20), high-pressure feed water pipeline (20) is connected with boiler economizer (28), removes
The first flow measuring diaphragm (6) of series connection, the first vaccum stop valve it is provided with between salt water feeder (7) and condenser (1)
(5), the first electric control valve (4) and gate valve (2), first vaccum stop valve (5) of series connection, the first electric control valve (4)
In parallel with gate valve (2) and the second vaccum stop valve (3).
A kind of boiler startup water-feeding system the most according to claim 1, it is characterised in that coagulating of condenser (1) downstream
Bearing water pipeline (15) and be provided with two valve groups (8) of parallel connection, said two valve group (8) all includes the 3rd vacuum being sequentially connected in series
Stop valve (9), pump intake filter screen (10), condensate pump (11), the first check-valves (12) and the first electric check valve (13).
A kind of boiler startup water-feeding system the most according to claim 2, it is characterised in that described valve group (8) downstream
Condensing water conduit (15) be provided be sequentially connected in series second flow measuring diaphragm (14), stop valve (16), the second check-valves (17),
Relief valve (18) and the second electric check valve (19).
A kind of boiler startup water-feeding system the most according to claim 3, it is characterised in that on high-pressure feed water pipeline (20)
It is provided with the 3rd flow measurement orifice plate (21), the 3rd check-valves (26) and the first electric gate valve (27) being sequentially connected in series.
A kind of boiler startup water-feeding system the most according to claim 4, it is characterised in that on high-pressure feed water pipeline (20)
It is provided with the second electric control valve (24) and the second electric gate valve (22) being arranged in series, the 3rd electric control valve (25) being arranged in series
In parallel with described the second electric control valve (24) being arranged in series and the second electric gate valve (22) with the 3rd electric gate valve (23)
Arrange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620443353.3U CN205655277U (en) | 2016-05-16 | 2016-05-16 | Water system in small -size power plant boiler start -up |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620443353.3U CN205655277U (en) | 2016-05-16 | 2016-05-16 | Water system in small -size power plant boiler start -up |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205655277U true CN205655277U (en) | 2016-10-19 |
Family
ID=57404025
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620443353.3U Expired - Fee Related CN205655277U (en) | 2016-05-16 | 2016-05-16 | Water system in small -size power plant boiler start -up |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205655277U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109442382A (en) * | 2018-11-30 | 2019-03-08 | 联峰钢铁（张家港）有限公司 | A kind of coal gas electricity generation boiler water supply system |
| CN109695558A (en) * | 2018-12-26 | 2019-04-30 | 中国神华能源股份有限公司 | 1000MW open type pumping system |
-
2016
- 2016-05-16 CN CN201620443353.3U patent/CN205655277U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109442382A (en) * | 2018-11-30 | 2019-03-08 | 联峰钢铁（张家港）有限公司 | A kind of coal gas electricity generation boiler water supply system |
| CN109695558A (en) * | 2018-12-26 | 2019-04-30 | 中国神华能源股份有限公司 | 1000MW open type pumping system |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161019 Termination date: 20210516 |