CN110568871B - Water supplementing control system for slag conveyor in waste incineration power plant - Google Patents
Water supplementing control system for slag conveyor in waste incineration power plant Download PDFInfo
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- CN110568871B CN110568871B CN201910879096.6A CN201910879096A CN110568871B CN 110568871 B CN110568871 B CN 110568871B CN 201910879096 A CN201910879096 A CN 201910879096A CN 110568871 B CN110568871 B CN 110568871B
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- slag conveyor
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- level meter
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J1/00—Removing ash, clinker, or slag from combustion chambers
- F23J1/06—Mechanically-operated devices, e.g. clinker pushers
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D9/00—Level control, e.g. controlling quantity of material stored in vessel
- G05D9/12—Level control, e.g. controlling quantity of material stored in vessel characterised by the use of electric means
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- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Gasification And Melting Of Waste (AREA)
Abstract
In order to overcome the technical problems that the water level measurement fluctuation of the existing slag conveyor is large, the accurate measurement of a liquid level meter is influenced and the water level of a slag conveyor body can not be maintained within a set range in the operation process, the invention provides a water replenishing control system of the slag conveyor of a waste incineration power plant, which is characterized in that a travel switch is further arranged on the slag conveyor body, the output of a measurement signal of the liquid level meter is controlled by the travel switch, when the slag conveyor operates, a fishing arm leaves a static position, the travel switch is disconnected due to touch release, and the liquid level meter stops working; when the slag conveyor is static, the fishing arm touches the travel switch, the travel switch is switched on, the liquid level meter works and measures the liquid level, and a measurement signal is transmitted to the automatic water supply control valve. Because the liquid level meter measures the water level signal when the slag conveyor stops running, the water level is stable, the measurement signal is also accurate, and the water level of the slag conveyor can be effectively maintained within a set range through water supplement.
Description
Technical Field
The invention relates to a slag conveyor of a waste incineration power plant, in particular to a water supplementing control system of the slag conveyor of the waste incineration power plant.
Background
Chinese patent publication number 207035159U provides a stifled moisturizing device is prevented to waste incineration power plant dragveyer, including the inside intercommunication pipeline between water tank, water tank and the dragveyer basin, moisturizing pipeline, automatic water supply control assembly and moisturizing bypass, automatic water supply control assembly is taken into the automatic water supply control valve that sets up on the moisturizing pipeline by the long-range liquid level of setting on the water tank and is constituteed, the moisturizing bypass inserts the water tank with outside water source, and the moisturizing warp of water tank inside intercommunication pipeline gets into the dragveyer basin drops to when setting for the height when the water tank water level, long-range level gauge will send out the signal to automatic water supply control valve, and automatic water supply control valve opens, and outside water source warp the moisturizing to the dragveyer, inside intercommunication pipeline is inserted the dragveyer basin by the water tank by the downward sloping mode by height. The technical scheme provides a good solution for solving the blockage of the water replenishing pipe of the slag conveyor.
However, when the slag conveyor runs, the water level inside the body fluctuates greatly, the accurate measurement of the liquid level meter is seriously influenced, excessive or missing water is often caused, and the water level of the slag conveyor body can not be basically maintained within a set range.
Disclosure of Invention
In order to overcome the technical problems that the water level measurement fluctuation of the existing slag conveyor is large, the accurate measurement of a liquid level meter is influenced and the water level of a slag conveyor body can not be maintained within a set range in the operation process, the invention provides a water replenishing control system of the slag conveyor of a waste incineration power plant, which is characterized in that a travel switch is further arranged on the slag conveyor body, the output of a measurement signal of the liquid level meter is controlled by the travel switch, when the slag conveyor operates, a fishing arm leaves a static position, the travel switch is disconnected due to touch release, and the liquid level meter stops working; when the slag salvaging machine is static, the salvaging arm touches the travel switch, the travel switch is conducted, the liquid level meter works and measures the liquid level, and a measuring signal is transmitted to the automatic water replenishing control valve. Because the liquid level meter measures the water level signal when the slag conveyor stops running, the water level is stable, and the measurement signal is accurate, so that the water level of the slag conveyor can be effectively maintained in a set range through water supplement.
The technical scheme adopted by the invention for solving the technical problems is as follows: a water supplementing control system for a slag conveyor in a waste incineration power plant comprises a water tank, an internal communication pipeline between the water tank and a slag conveyor water tank, a water supplementing pipeline, an automatic water supplementing control assembly and a water supplementing bypass, wherein the automatic water supplementing control assembly is composed of a remote liquid level meter arranged on the water tank and an automatic water supplementing control valve arranged on the water supplementing pipeline, the water supplementing bypass accesses an external water source into the water tank, the water supplementing of the water tank enters the slag conveyor water tank through the internal communication pipeline, when the water level of the water tank drops to a set height, the remote liquid level meter sends a signal to the automatic water supplementing control valve, the automatic water supplementing control valve is opened, the external water source supplements water to the slag conveyor through the water supplementing pipeline,
the internal communication pipeline is connected into a water tank of the slag conveyor from a water tank in a downward inclination mode from high to low,
the water replenishing pipe is directly inserted into the internal communication pipe,
the slag salvaging machine is characterized in that a travel switch is further arranged on a body of the slag salvaging machine, the output of a measuring signal of the liquid level meter is controlled by the travel switch, when the slag salvaging machine runs, a salvaging arm leaves a static position, the travel switch is disconnected due to touch release, and the liquid level meter stops working; when the slag conveyor is static, the fishing arm touches the travel switch, the travel switch is conducted, the liquid level meter works and measures the liquid level, and a measurement signal is transmitted to the automatic water replenishing control valve;
when the water level measured by the liquid level meter is lower than the set normal water level, the automatic water replenishing control valve is opened to replenish water to the water tank, the water level gradually rises, when the water level measured by the liquid level meter reaches a high water level, a signal is transmitted to the automatic water replenishing control valve, the automatic water replenishing control valve is closed, and water replenishing is stopped.
When the measured water level of the liquid level meter is higher than the set normal water level, the automatic water replenishing control valve is closed.
The beneficial effects of the invention are: the invention provides a water supplementing control system for a slag conveyor in a waste incineration power plant, wherein a travel switch is further arranged on a body of the slag conveyor, the travel switch controls the output of a measuring signal of a liquid level meter, the liquid level meter measures a water level signal when the slag conveyor stops running, so that the water level is stable, the measuring signal is accurate, and the water level of the slag conveyor can be effectively ensured to be maintained in a set range through water supplementing.
Drawings
Fig. 1 and 2 are schematic structural views of a first embodiment of the present invention. Wherein fig. 1 is a structural schematic diagram of the slag conveyor when in a static state, and fig. 2 is a structural schematic diagram of the slag conveyor when in operation.
In the figure, the position of the first and second end faces,
1. a water tank is arranged in the water tank,
2. the inside of the water tank is communicated with a pipeline,
3. water supply line, 3.1 insertion part,
4. a water-replenishing bypass is arranged on the water-replenishing side,
5. the remote liquid level meter is arranged on the liquid level meter,
6 the automatic water-replenishing control valve is arranged,
7. a slag dragging machine, a 7.1 dragging arm,
8. a water tank of the slag dragging machine,
9. the amount of water is controlled by the amount of water,
10. the sludge and the impurities are removed,
11. a slag conveyor body is arranged on the lower part of the slag conveyor,
12. the sewage collecting tank is provided with a sewage collecting tank,
13. a sewage discharge pipe is arranged on the sewage discharge pipe,
14. an external water source is arranged on the water tank,
15 travel switch.
Detailed Description
Fig. 1 and 2 are schematic structural views of a first embodiment of the present invention. Wherein fig. 1 is a structural schematic diagram of the slag conveyor when in a static state, and fig. 2 is a structural schematic diagram of the slag conveyor when in operation. In the figure, the automatic water replenishing control valve is closed in the embodiment, and comprises a water tank 1, an internal communication pipeline 2 between the water tank 1 and a dragveyer water tank 8, a water replenishing pipeline 3, an automatic water replenishing control assembly and a water replenishing bypass 4, wherein the automatic water replenishing control assembly consists of a remote liquid level meter 5 arranged on the water tank and an automatic water replenishing control valve 6 arranged on the water replenishing pipeline, an external water source 14 replenishes water through the water replenishing pipeline 3, the external water source 14 is connected into the water tank 1 through the water replenishing bypass 4, water 9 in the water tank 1 enters the dragveyer water tank 8 through the internal communication pipeline 2, when the water level of the water tank 1 is lower than a set normal height, the remote liquid level meter 5 sends a signal to the automatic water replenishing control valve 6, the automatic water replenishing control valve 6 is opened, and the external water source 14 replenishes water to the dragveyer through the water replenishing pipeline 3. In the example shown, the internal communication line 2 runs from high to low and is connected from the water tank 1 in a downwardly sloping manner to the water tank 8 of the dragger. Because inside communicating pipe way 2 is from high to low with downward sloping mode by the water tank access dragveyer basin 8, make the mud sediment grain be difficult to deposit inside the pipeline, can effectively solve the pipeline and block up the problem. In this example, the insertion portion 3.1 of the water replenishing pipe 3 is directly inserted into the internal communication pipe 2, and the internal communication pipe 2 is flushed with the pressurized water of the external water source 14 to prevent clogging of the pipe during the water replenishing.
In the embodiment, each water replenishing is to dredge the pipeline once, and the water is effectively replenished into the slag conveyor in time, so that the blocking probability of the internal communication pipeline can be greatly reduced, and the labor intensity of operators is reduced.
In this embodiment, a sewage collecting tank 12 is further disposed at the bottom of the water tank 1, and a sewage discharging pipe 13 is disposed below the sewage collecting tank, and the sewage can be discharged to the outside periodically.
In the present example, unlike the prior art, a travel switch 15 is further provided on the body 11 of the slag conveyor, and the output of the measurement signal of the level gauge 5 is controlled by the travel switch 15. Fig. 2 shows that when the dragveyer is running, the drag arm 7.1 leaves the rest position, the travel switch 15 is disconnected due to touch release, and the liquid level meter 5 stops working; when the slag conveyor is static, the fishing arm 7.1 touches the travel switch 15, the travel switch 15 is conducted, the liquid level meter 5 works and measures the liquid level, and a measurement signal is transmitted to the automatic water supplement control valve 6;
when the water level measured by the liquid level meter 5 is lower than the set normal water level, the automatic water replenishing control valve 6 is opened to replenish water to the water tank 1, the water level gradually rises, when the water level measured by the liquid level meter 5 reaches a high water level, a signal is transmitted to the automatic water replenishing control valve 6, the automatic water replenishing control valve 6 is closed, and water replenishing is stopped.
When the measured water level of the liquid level meter 5 is above the set normal water level, the automatic water supply control valve 6 is closed.
Claims (1)
1. A water supplementing control system for a slag conveyor in a waste incineration power plant comprises a water tank, an internal communication pipeline between the water tank and a slag conveyor water tank, a water supplementing pipeline, an automatic water supplementing control assembly and a water supplementing bypass, wherein the automatic water supplementing control assembly is composed of a remote liquid level meter arranged on the water tank and an automatic water supplementing control valve arranged on the water supplementing pipeline, the water supplementing bypass accesses an external water source into the water tank, the water supplementing of the water tank enters the slag conveyor water tank through the internal communication pipeline, when the water level of the water tank drops to a set height, the remote liquid level meter sends a signal to the automatic water supplementing control valve, the automatic water supplementing control valve is opened, the external water source is supplemented with water from the water supplementing pipeline to the slag conveyor, the internal communication pipeline is accessed into the slag conveyor water tank through the water tank in a downward tilting mode, the water supplementing pipeline is directly inserted into the internal communication pipeline,
the fishing device is characterized in that a travel switch is further arranged on a body of the slag conveyor, the travel switch controls the output of a measuring signal of the liquid level meter, when the slag conveyor runs, the fishing arm leaves a static position, the travel switch is disconnected due to touch release, and the liquid level meter stops working; when the slag conveyor is static, the fishing arm touches the travel switch, the travel switch is conducted, the liquid level meter works and measures the liquid level, and a measurement signal is transmitted to the automatic water supply control valve;
when the water level measured by the liquid level meter is lower than the set normal water level, the automatic water replenishing control valve is opened to replenish water to the water tank, the water level is gradually increased, when the water level measured by the liquid level meter reaches a high water level, a signal is transmitted to the automatic water replenishing control valve, the automatic water replenishing control valve is closed, and water replenishing is stopped;
when the measured water level of the liquid level meter is higher than the set normal water level, the automatic water replenishing control valve is closed.
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CN205785420U (en) * | 2016-06-27 | 2016-12-07 | 中国石油集团渤海钻探工程有限公司 | The accurate measurement apparatus of slurry tank liquid level |
CN107013930A (en) * | 2017-06-01 | 2017-08-04 | 深圳市能源环保有限公司 | A kind of anti-blocking water replanishing device of garbage incinerating power plant dragveyer |
CN207035159U (en) * | 2017-06-01 | 2018-02-23 | 深圳市能源环保有限公司 | A kind of anti-blocking water replanishing device of garbage incinerating power plant dragveyer |
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2019
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Patent Citations (10)
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CN102499613A (en) * | 2011-11-18 | 2012-06-20 | 海尔集团公司 | Water level detection and control method |
CN104236035A (en) * | 2013-06-08 | 2014-12-24 | 珠海格力电器股份有限公司 | Water tank, air conditioner with water tank and air conditioner condensate water treatment method |
CN203489952U (en) * | 2013-09-30 | 2014-03-19 | 开封万盛新材料有限公司 | Liquid level measuring device for fluctuated liquid surface |
CN104062985A (en) * | 2014-06-11 | 2014-09-24 | 珠海格力电器股份有限公司 | Water level control device and method of sampling system |
CN204270163U (en) * | 2014-12-10 | 2015-04-15 | 南阳汉冶特钢有限公司 | A kind of Lian Zha factory is for auxiliary workshop settling basin water level automatic control device |
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