CN204786315U - Exhaust -heat boiler charge device - Google Patents
Exhaust -heat boiler charge device Download PDFInfo
- Publication number
- CN204786315U CN204786315U CN201520304552.1U CN201520304552U CN204786315U CN 204786315 U CN204786315 U CN 204786315U CN 201520304552 U CN201520304552 U CN 201520304552U CN 204786315 U CN204786315 U CN 204786315U
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- China
- Prior art keywords
- feed pipe
- boiler
- piston pump
- heat boiler
- chemicals dosing
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- Expired - Fee Related
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- Control Of Steam Boilers And Waste-Gas Boilers (AREA)
Abstract
The utility model provides an exhaust -heat boiler charge device includes phosphate radical solution storage tank, the batch meter passes through the pipe connection on phosphate radical solution storage tank, piston pump and batch meter intercommunication, and piston pump and feed pipe intercommunication, the feed pipe is added water to boiler vapour storehouse. The utility model has the advantages of, the medicine solution that will dispose relies on feedwater flow self suction and gets into the feed pipe under the effect of dosing pump external force to directly go into boiler economizer's boiler vapour storehouse through the feed pipe, overcome and direct add to boiler vapour storehouse that medicine solution receives boiler vapour storehouse pressure influence and influenced by high temperature when overhauing must shut down the scheduling problem.
Description
Technical field
The utility model relates to a kind of chemicals dosing plant improving waste heat boiler water quality, particularly in the waste heat boiler that air pressure height is uneven.
Background technology
In order to prevent boiler water quality bad, the fault caused.Except increasing water quality, also tackle stove water process.At present, Waste Heat Power Station boiler generally adopts in stove the method adding phosphate radical process.Usual station boiler is made up of two or more boiler, and its heat is mainly from recycling waste heat but its air pressure height inequality produced.In agent-feeding treatment process, as adopted a main pipeline to carry out tubular type dosing, just to there will be low pressure furnace phosphate content high, and pressure furnace content is low, even without medicine state.As adopted separate unit dosing one to one, a mode for subsequent use, though can desired value be reached, when boiler normally runs as when drug valve breaks down as: high temperature≤280 DEG C cannot be keeped in repair, and can only implement when blowing out.Moreover strictly undertaken monitoring by technic index 5-15mg/l and just need that phosphate radical analyzer tracker is installed and automatically control, otherwise just there will be chemical feeding quantity surplus.Long-time so operation can produce incrustation affects steam quality as shown in Figure (1) shows.
Summary of the invention
For the problems referred to above, the utility model provide a kind of by the drug solution that configures under the effect of dosing pump external force, rely on and enter feed pipe to water flow self suction, and the waste heat boiler chemicals dosing plant in the boiler vapour storehouse of boiler economizer is directly entered by feed pipe, overcome and add drug solution directly to boiler vapour storehouse and the problem such as must to shut down by when boiler vapour storehouse pressure influence and maintenance by temperatures involved; The other invention order ground of the utility model, is to provide a kind of time fine tuning that can run according to waste heat boiler to add boiler vapour storehouse drug solution concentration, improves the utilization ratio of drug solution.
This realizes technical scheme of the present invention, and a kind of waste heat boiler chemicals dosing plant comprises phosphate radical solution storage tank, and batch meter is connected on phosphate radical solution storage tank by pipeline, and piston pump is communicated with batch meter, and piston pump is communicated with feed pipe, and feed pipe adds water to boiler vapour storehouse.
Further, feed pipe is provided with the first electronic flow valve, and controller is electrically connected with the first electronic flow valve, piston pump respectively.
Further, chemicals dosing plant at least comprises two batch meters, and each batch meter at least connects a piston pump.
Further, establish pneumatic stirring axle in phosphate radical solution storage tank, pneumatic stirring axle surface is provided with pore, and high-pressure air source is communicated with pneumatic stirring axle, and gas is discharged from pore;
Controller can control the on-off of pneumatic stirring axle high-pressure air source.
Further, piston pump is variable frequency pump.
Further, establish level sensor in batch meter, level sensor and controller are electrically connected.
The utility model has the advantage of, 1, fall low material consumption, save mounting cost, power saving, easy to maintenance, particularly in the maintenance avoided under the high temperature of degree more than 200; 2, avoid boiler partially to add because air pressure inequality produces, because directly drug solution being added by feed pipe, period can not by the impact of boiler vapour storehouse internal pressure; 3, chemical feeding points is evenly distributed, and effectively can control stove water phosphate content, ensures steam quality; 4, reduce enterprise's use cost, guarantee safe production.
Accompanying drawing explanation
Fig. 1 is prior art.
Fig. 2 is the utility model structural representation.
Fig. 3 is that the utility model controls schematic diagram.
Fig. 4 is Gas Stirring axle construction schematic diagram.
As in figure, phosphate radical solution storage tank 1, batch meter 2, piston pump 3, feed pipe 4, boiler vapour storehouse 5, first electronic flow valve 6, controller 7, pneumatic stirring axle 8, pore 9, level sensor 10.
Detailed description of the invention
As in Fig. 2, a kind of waste heat boiler chemicals dosing plant comprises phosphate radical solution storage tank 1, two batch meters 2 are connected on phosphate radical solution storage tank 1 respectively by pipeline, every platform batch meter 2 connects a piston pump 3, piston pump 3 is communicated with feed pipe 4, feed pipe 4 adds water to the boiler vapour storehouse 5 of Waste Heat Power Station boiler, during work, first make phosphate radical solution phosphate radical solution storage tank 1 is prewired, under the cooperation of batch meter 2 and piston pump 3, the phosphate radical amount of solution that feed pipe 4 is inputted to boiler vapour storehouse 5 controls at 5-15mg/l, water pipe in feed pipe 4 is generally at about 45 degree, during maintenance, at high temperature operation can be avoided.
As in Fig. 3, preferably, feed pipe 4 is provided with the first electronic flow valve 6, controller 7 respectively with the first electronic flow valve 6, piston pump 3(piston pump 3 is variable frequency pump) be electrically connected, during work, the controlled device 7 of first electronic flow valve 6 controls according to the water requirement in boiler vapour storehouse 5, water is added to boiler vapour storehouse 5, started by control piston pump 3 with Time Controller 7, stop and frequency conversion, control the amount that phosphate radical solution adds to feed pipe, the trace change that can also be realized adding phosphate radical amount of solution by controller 7 is added, the time length can run according to waste heat boiler adjusts the addition of phosphate radical amount of solution, make it at 5mg/l---change between 15mg/l,
Level sensor 10 is established in batch meter 2, level sensor 10 and controller 7 are electrically connected, controller 7 understands phosphate radical solution supply situation in real time by level sensor 10, when supply situation not foot controls 7 can pass through control piston pump 3 duty, maintain MIN interpolation.
As in Fig. 4, preferably, pneumatic stirring axle 8 is established in phosphate radical solution storage tank 1, pneumatic stirring axle 8 is in X-type, and be provided with pore 9 on its surface, high-pressure air source is communicated with pneumatic stirring axle 8, gas is discharged from pore 9, and pneumatic stirring axle 8 can rotate under the driving of drive unit;
Controller 7 can control the on-off of pneumatic stirring axle 8 high-pressure air source, the compound method of existing phosphate radical solution, that that phosphate radical solution higher to pure water and concentration is mixed to form concentration is mutually suitable, but the uniformity of its mixing is the diffusion relying on liquid, when liquid interpolation demand is excessive, phosphate radical solution is in phosphate radical solution storage tank 1, when having little time to spread even, injected feed pipe 4 by piston pump 3, and adopt the way of being inflated to phosphate radical solution storage tank 1 by pneumatic stirring axle 8, the even of liquid can be realized fast.
Application of the present utility model only for illustration of the present invention, but is not limited to above-mentioned citing, and the improvement carried out on this basis and equivalents all should belong to the protection domain of claims of the present invention.
Claims (6)
1. a waste heat boiler chemicals dosing plant, it is characterized in that: described chemicals dosing plant comprises phosphate radical solution storage tank (1), batch meter (2) is connected on phosphate radical solution storage tank (1) by pipeline, piston pump (3) is communicated with batch meter (2), piston pump (3) is communicated with feed pipe (4), and feed pipe (4) adds water to boiler vapour storehouse (5).
2. a kind of waste heat boiler chemicals dosing plant according to claim 1, it is characterized in that: described feed pipe (4) is provided with the first electronic flow valve (6), controller (7) is electrically connected with the first electronic flow valve (6), piston pump (3) respectively.
3. a kind of waste heat boiler chemicals dosing plant according to claim 1, is characterized in that: described chemicals dosing plant at least comprises two batch meters (2), and each batch meter (2) at least connects a piston pump (3).
4. a kind of waste heat boiler chemicals dosing plant according to claim 1, it is characterized in that: in described phosphate radical solution storage tank (1), establish pneumatic stirring axle (8), pneumatic stirring axle (8) surface is provided with pore (9), high-pressure air source is communicated with pneumatic stirring axle (8), and gas is discharged from pore (9);
Controller (7) can control the on-off of pneumatic stirring axle (8) high-pressure air source.
5. a kind of waste heat boiler chemicals dosing plant according to claim 1, is characterized in that: described piston pump (3) is variable frequency pump.
6. a kind of waste heat boiler chemicals dosing plant according to claim 1, is characterized in that: establish level sensor (10) in described batch meter (2), and level sensor (10) and controller (7) are electrically connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520304552.1U CN204786315U (en) | 2015-05-13 | 2015-05-13 | Exhaust -heat boiler charge device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520304552.1U CN204786315U (en) | 2015-05-13 | 2015-05-13 | Exhaust -heat boiler charge device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204786315U true CN204786315U (en) | 2015-11-18 |
Family
ID=54526361
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520304552.1U Expired - Fee Related CN204786315U (en) | 2015-05-13 | 2015-05-13 | Exhaust -heat boiler charge device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204786315U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105485655A (en) * | 2015-11-26 | 2016-04-13 | 湖南华信稀贵科技有限公司 | Chemical adding device for bottom-blowing furnace waste heat boiler and reducing furnace waste heat boiler |
| CN108217987A (en) * | 2018-01-08 | 2018-06-29 | 中国恩菲工程技术有限公司 | Waste heat boiler dosing blowdown control method |
-
2015
- 2015-05-13 CN CN201520304552.1U patent/CN204786315U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105485655A (en) * | 2015-11-26 | 2016-04-13 | 湖南华信稀贵科技有限公司 | Chemical adding device for bottom-blowing furnace waste heat boiler and reducing furnace waste heat boiler |
| CN108217987A (en) * | 2018-01-08 | 2018-06-29 | 中国恩菲工程技术有限公司 | Waste heat boiler dosing blowdown control method |
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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: 20151118 Termination date: 20170513 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |