CN201636838U - Automatic blow-down device for power station boilers - Google Patents
Automatic blow-down device for power station boilers Download PDFInfo
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- CN201636838U CN201636838U CN2009202920690U CN200920292069U CN201636838U CN 201636838 U CN201636838 U CN 201636838U CN 2009202920690 U CN2009202920690 U CN 2009202920690U CN 200920292069 U CN200920292069 U CN 200920292069U CN 201636838 U CN201636838 U CN 201636838U
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- blow
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- boiler
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Abstract
The utility model discloses an automatic blow-down device for power station boilers, aiming to provide an automatic boiler blow-down control system which replaces an operation mode of blow-down by operators to manually operate blow-down valves according to manual sample testing results, adopts a computer as a control core, and consists of a blow-down on and off detector, a discharge capacity measurer and a blow-down on and off actuator. The automatic blow-down device comprises an electric regulating valve, a detection instrument and a transmitter which are connected with the computer via control cables, wherein the detection instrument is connected with a boiler drum via a sampling pipeline, the transmitter is connected with a throttling component via a control cable, and the electric regulating valve which is connected with the boiler drum via a primary door through a blow-down pipeline is further connected with the throttling component leading to a blow-down flash tank also through the blow-down pipeline. The automatic blow-down device is suitable for automatic blow-down based on continuous online analysis of boiler water quality, can not only save energy and reduce consumption but increase automation level of thermal power plants.
Description
Technical field
The utility model relates to a kind of station boiler automatic sewage discharging device.
Background technology
At present, the operations staff of thermal power plant adopts operation manually to the station boiler blow-off of boiler water, is prone to the problem of blowdown deficiency and excessive blowdown.The not enough quality that directly influences stove water and steam of blowdown bad phenomenon such as stove water azeotropic, heat power equipment fouling booster can occur when serious, the security of influence operation; The excessive loss that can produce working medium and heat aspect of blowdown, the economy of influence operation.
Summary of the invention
The technical problems to be solved in the utility model is: providing a kind of is that being risen by blowdown of control core closed detections, blowdown flow rate and measured to rise to close with blowdown and carry out the blowdown automatic control system that three parts are formed by computer, and alternative operations staff is according to the blowdown of manual sampling result of laboratory test manual operation sewage draining valve.
In order to address the above problem, technical solution adopted in the utility model is: the utility model is by stove chemical measurements of water analysis meter, pre-designed control program is installed and carries out the computer system of parameter tuning, motor regulated valve, throttling element and transmitter are formed, computer system links to each other with the analysis meter that links to each other with boiler-steam dome by sampling line by control cable one end, the other end links to each other with the transmitter that links to each other with throttling element by the control cable, the 3rd end links to each other with motor regulated valve, motor regulated valve by blowoff line one end through once the door link to each other with boiler-steam dome, an end links to each other with the throttling element that leads to blowdown system.
Employing the utility model can be on the basis of stove water quality continuous on-line analysis, realize the boiler water automatic pollution discharge, maximum possible reduces blowdown flow rate under the situation that guarantees stove water stay in grade, played energy-saving and cost-reducing effect, alleviate operations staff's labour intensity simultaneously, improve the thermal power plant automation level.
Description of drawings
Accompanying drawing is a structural representation of the present utility model.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is done detailed explanation.
From accompanying drawing as can be known, the utility model is made up of the stove chemical measurements of water analysis meter 4 that is connected by sampling line and control cable, the computer system 3, motor regulated valve 5, throttling element 1 and the transmitter 2 that pre-designed control program are installed and carry out parameter tuning.When implementing the utility model, when computer system 3 detected stove chemical measurements of water that analysis meter 4 sends and reaches blowdown and require, control motor regulated valve 5 was opened, and boiler-steam dome stove water is through once behind the door finally through the blowdown system blowdown.When the sewage that blowdown is discharged flows through throttling element 1 as measured medium, throttling element 1 front and back will produce pressure differential Δ P, by transmitter 2 drum pressure, incoming-flow pressure and differential pressure are transformed into 4～20mA normalized current signal, and three current signals are sent into computer system 3, press instantaneous delivery and integrated flow that the multiphase flow rates measuring principle obtains measured medium.Calculate good technological requirement parameter in advance in blowdown flow rate reaches computer system 3 after, computer system 3 control motor regulated valves 5 are closed, and finish a blowdown.When reaching the blowdown requirement once more, the stove chemical measurements of water moves once more than the circulation.So just can realize thermal power plant's station boiler automatic pollution discharge.
Claims (1)
1. station boiler automatic sewage discharging device, it is characterized in that: it is by stove chemical measurements of water analysis meter (4), pre-designed control program is installed and carries out the computer system (3) of parameter tuning, motor regulated valve (5), throttling element (1) and transmitter (2) are formed, computer system (3) links to each other with the analysis meter that links to each other with boiler-steam dome by sampling line (4) by control cable one end, the other end links to each other with the transmitter (2) that links to each other with throttling element (1) by the control cable, the 3rd end links to each other with motor regulated valve (5), motor regulated valve (5) by blowoff line one end through once the door link to each other with boiler-steam dome, an end links to each other with the throttling element that leads to blowdown system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202920690U CN201636838U (en) | 2009-12-16 | 2009-12-16 | Automatic blow-down device for power station boilers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202920690U CN201636838U (en) | 2009-12-16 | 2009-12-16 | Automatic blow-down device for power station boilers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201636838U true CN201636838U (en) | 2010-11-17 |
Family
ID=43081333
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202920690U Expired - Fee Related CN201636838U (en) | 2009-12-16 | 2009-12-16 | Automatic blow-down device for power station boilers |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201636838U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102937289A (en) * | 2012-11-12 | 2013-02-20 | 鞍钢集团工程技术有限公司 | Method and device for saving water and energy of converter waste heat boiler |
| CN110260294A (en) * | 2019-07-19 | 2019-09-20 | 辛亮 | Boiler body hot waste water waste heat online recycling utilizes system |
-
2009
- 2009-12-16 CN CN2009202920690U patent/CN201636838U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102937289A (en) * | 2012-11-12 | 2013-02-20 | 鞍钢集团工程技术有限公司 | Method and device for saving water and energy of converter waste heat boiler |
| CN110260294A (en) * | 2019-07-19 | 2019-09-20 | 辛亮 | Boiler body hot waste water waste heat online recycling utilizes system |
| CN110260294B (en) * | 2019-07-19 | 2024-06-11 | 吉林电力股份有限公司四平第一热电公司 | Online recycling system for waste heat of high-temperature waste water of boiler body |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101117 Termination date: 20111216 |