CN210825557U - Power plant auxiliary engine cooling water treatment system - Google Patents
Power plant auxiliary engine cooling water treatment system Download PDFInfo
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- CN210825557U CN210825557U CN201921018588.8U CN201921018588U CN210825557U CN 210825557 U CN210825557 U CN 210825557U CN 201921018588 U CN201921018588 U CN 201921018588U CN 210825557 U CN210825557 U CN 210825557U
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Abstract
The utility model relates to an auxiliary engine cooling water treatment system of power plant belongs to water treatment technical field. The utility model discloses a cooling tower pond, water pump, electronic water valve, electrochemical treatment device, electronic outlet valve, automatic blowoff valve, level gauge, sedimentation tank and electronic overflow valve that come, cooling tower pond and water pump are through a pipe connection, the water pump passes through No. two pipe connections with electrochemical treatment device, and electronic water valve installation is on No. two pipelines, electrochemical treatment device and cooling tower pond are through No. three pipe connections, and electronic outlet valve installs on No. three pipelines, electrochemical treatment device and sedimentation tank pass through No. four pipe connections, and automatic blowoff valve installs on No. four pipelines, the level gauge is located the sedimentation tank, the sedimentation tank passes through No. five pipe connections with No. three pipelines, and electronic overflow valve installs on No. five pipelines. Has good descaling and antiscaling effects, and can effectively improve the concentration rate to more than 3.5 after being treated by the device.
Description
Technical Field
The utility model relates to an auxiliary engine cooling water treatment system of power plant belongs to water treatment technical field.
Background
In an open circulating cooling water system of an auxiliary machine of a power plant, cooling water is continuously circulated and evaporated, salts and organic substances in water are concentrated, and if measures are not adopted properly, the system is easy to have the problems of scale deposit, corrosion, microorganism breeding and the like, so that the normal operation and safe production of equipment are influenced. For a long time, a chemical agent scale inhibition method is widely adopted in a power plant, plays an active role, but has the problems of environmental pollution caused by chemical agent discharge, high operation cost, difficult management and the like. With the stricter national requirements on water saving and environmental protection, the problems of the traditional chemical agent treatment method are more and more prominent.
In view of this, a reclaimed water treatment system for circulating cooling water of a power plant is disclosed in patent document No. 201811637093.3. Therefore, there is a need to develop a treatment system and method that is simple to operate, effective in descaling, and does not cause environmental pollution.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the above-mentioned not enough that exists among the prior art, and provide a structural design is reasonable, has overcome the not enough auxiliary engine cooling water treatment system of power plant of traditional chemistry medicine method.
The utility model provides a technical scheme that above-mentioned problem adopted is: this power plant's auxiliary engine cooling water treatment system, its structural feature lies in: the device comprises a cooling tower pool, a water pump, an electric water inlet valve, an electrochemical treatment device, an electric water outlet valve, an automatic blowdown valve, a liquid level meter, a sedimentation tank and an electric overflow valve, wherein the cooling tower pool is connected with the water pump through a first pipeline, the water pump is connected with the electrochemical treatment device through a second pipeline, the electric water inlet valve is installed on the second pipeline, the electrochemical treatment device is connected with the cooling tower pool through a third pipeline, the electric water outlet valve is installed on the third pipeline, the electrochemical treatment device is connected with the sedimentation tank through a fourth pipeline, the automatic blowdown valve is installed on the fourth pipeline, the liquid level meter is located in the sedimentation tank, the sedimentation tank is connected with the third pipeline through a fifth pipeline, and the electric overflow valve is installed on the fifth pipeline. Therefore, the device has good descaling and antiscaling effects, and the concentration rate can be effectively improved to be more than 3.5 after the treatment by the device. Meanwhile, ionization can also convert a part of chloride ions in water into chlorine, and oxygen free radicals and other products with sterilization and algae removal effects are generated.
Further, the electrochemical treatment device is positioned above the sedimentation tank.
Furthermore, the bottom of the electrochemical treatment device is connected with the top of the sedimentation tank through an automatic blowdown valve, a liquid level meter is installed in the sedimentation tank, and the overflow of the sedimentation tank is controlled through high and low limit signals of the liquid level.
Further, another technical object of the utility model is to provide a processing method of auxiliary machinery cooling water treatment system of power plant.
The above technical object of the present invention can be achieved by the following technical solutions.
A treatment method of a cooling water treatment system of an auxiliary machine of a power plant is characterized in that: the treatment method comprises the following steps: the water in the tower pool of the cooling tower is treated by an electrochemical treatment device, and the water is ionized by the electrochemical treatment device to generate H+And OH-，H+And HCO in water3 2+Reaction to CO3 2-Ca in water2+、Mg2+And OH-、CO3 2-The reaction forms precipitate, thereby reducing the hardness of water, and the water molecules are changed into polar water molecules under the action of the electric field to surround Ca2+、Mg2+And CO3 2+And the generation of precipitate is prevented.
Further, the scale that electrochemical treatment device produced forms the blowdown water through scraping the scale, and the blowdown water passes through automatic blowoff valve and gets into the sedimentation tank, and the blowdown water is regularly discharged, scrapes the scale blowdown once every 4 hours, discharges 3 minutes at every turn.
Furthermore, a liquid level meter is arranged on the side surface of the sedimentation tank, and the liquid level meter is provided with a liquid level high limit value and a liquid level low limit value.
Further, when the liquid level meter reaches a set liquid level high limit value, the electric overflow valve is opened, an overflow port of the sedimentation tank is connected to the cooling tower pool, when the liquid level meter reaches a set liquid level low limit value, the electric overflow valve is closed, and sludge in the sedimentation tank is manually cleaned once every half year.
Compared with the prior art, the utility model has the advantages of it is following: the electrochemical method is a water treatment technology different from a chemical dosing method, consumes a proper amount of electric energy in the using process, does not need to add chemical agents, is a clean and pollution-free water treatment process, has good functions of descaling, antiscaling, sterilizing and algae removal, can realize full-automatic operation, and is simple to manage.
(1) Can effectively improve the concentration rate of the circulating water and realize water conservation.
(2) No chemical agent is needed to be added, and the functions of descaling, sterilization, algae removal, corrosion inhibition and corrosion prevention are good.
(3) Can realize the cyclic utilization of water in the system, does not generate waste water, and is green and environment-friendly.
(4) The automatic control system can realize full-automatic operation, is simple in manual maintenance and low in management cost.
Drawings
Fig. 1 is a schematic connection diagram of a cooling water treatment system for auxiliary machinery of a power plant in an embodiment of the present invention.
In the figure: a cooling tower pool 1, a water pump 2, an electric water inlet valve 3, an electrochemical treatment device 4, an electric water outlet valve 5, an automatic blowdown valve 6, a liquid level meter 7, a sedimentation tank 8, an electric overflow valve 9,
The pipeline comprises a first pipeline 01, a second pipeline 02, a third pipeline 03, a fourth pipeline 04 and a fifth pipeline 05.
Detailed Description
The present invention will be described in further detail by way of examples with reference to the accompanying drawings, which are illustrative of the present invention and are not intended to limit the present invention.
Examples are given.
Referring to fig. 1, it should be understood that the structures, ratios, sizes, etc. shown in the drawings attached to the present specification are only used for matching with the contents disclosed in the specification, so as to be known and read by those skilled in the art, and are not used for limiting the limit conditions that the present invention can be implemented, so that the present invention has no essential technical significance, and any modifications of the structures, changes of the ratio relationships, or adjustments of the sizes should still fall within the scope of the present invention. Meanwhile, in the present specification, if the terms such as "upper", "lower", "left", "right", "middle" and "one" are used, they are not intended to limit the scope of the present invention, but to limit the relative relationship between the terms and the terms, and the scope of the present invention is not to be considered as the scope of the present invention.
The cooling water treatment system for the auxiliary machine of the power plant in the embodiment comprises a cooling tower pool 1, a water pump 2, an electric water inlet valve 3, an electrochemical treatment device 4, an electric water outlet valve 5, an automatic blowdown valve 6, a liquid level meter 7, a sedimentation tank 8 and an electric overflow valve 9, wherein the electrochemical treatment device 4 is positioned above the sedimentation tank 8; cooling tower pond 1 is connected through a pipeline 01 with water pump 2, water pump 2 is connected through No. two pipelines 02 with electrochemical treatment device 4, and electronic water valve 3 that comes installs on No. two pipelines 02, electrochemical treatment device 4 is connected through No. three pipelines 03 with cooling tower pond 1, and electronic outlet valve 5 installs on No. three pipelines 03, electrochemical treatment device 4 is connected through No. four pipelines 04 with sedimentation tank 8, and automatic blowoff valve 6 installs on No. four pipelines 04, level gauge 7 is located sedimentation tank 8, sedimentation tank 8 is connected through No. five pipelines 05 with No. three pipelines 03, and electronic overflow valve 9 installs on No. five pipelines 05.
The bottom of the electrochemical treatment device 4 in the embodiment is connected with the top of the sedimentation tank 8 through the automatic blowdown valve 6, the sedimentation tank 8 is internally provided with the liquid level meter 7, and the overflow of the sedimentation tank 8 is controlled through high and low limit signals of the liquid level.
The treatment method of the cooling water treatment system for the power plant auxiliary machine in the embodiment comprises the following steps: the water in the tower pool 1 of the cooling tower is treated by the electrochemical treatment device 4, and the water is ionized by the electrochemical treatment device 4 to generate H+And OH-，H+And HCO in water3 2+Reaction to CO3 2-Ca in water2+、Mg2+And OH-、CO3 2-The reaction forms a precipitate, thereby reducing the hardness of water, and simultaneously water molecules are removedChanged into polar water molecules under the action of an electric field to surround Ca2+、Mg2+And CO3 2+And the generation of precipitate is prevented.
The scale generated by the electrochemical treatment device 4 in the embodiment forms sewage water through scale scraping, the sewage water enters the sedimentation tank 8 through the automatic sewage valve 6, the sewage water is drained at regular time, the scale scraping and the sewage draining are carried out once every 4 hours, and the sewage draining is carried out for 3 minutes every time; a liquid level meter 7 is arranged on the side surface of the sedimentation tank 8, and the liquid level meter 7 is provided with a liquid level high limit value and a liquid level low limit value; when the liquid level meter 7 reaches a set liquid level high limit value, the electric overflow valve 9 is opened, the overflow port of the sedimentation tank 8 is connected to the cooling tower pool 1, when the liquid level meter 7 reaches a set liquid level low limit value, the electric overflow valve 9 is closed, and sludge in the sedimentation tank 8 is manually cleaned once every half year.
The water in the tower pool 1 of the cooling tower enters the electrochemical treatment device 4 by being lifted by the water pump 2, and the electric water inlet valve 3 is normally opened (closed when the water pump 2 is stopped or overhauled). The circulating cooling water is electrochemically treated in the electrochemical treatment device 4, calcium and magnesium ions in the water form calcium carbonate and magnesium hydroxide scales in the electrolytic process of the electrochemical treatment device 4, the scales are scraped by the device and are discharged, and the scale-containing sewage is discharged into the sedimentation tank 8 for sedimentation at regular time (the scale scraping and the sewage discharging are carried out every 4 hours) through the automatic sewage discharging valve 6. The clean water treated by the electrochemical treatment device 4 flows back to the cooling tower pool 1 through the electric water outlet valve 5. The sedimentation tank 8 is provided with a liquid level meter 7 with a remote signal, and the liquid level meter 7 is provided with a liquid level high limit value and a liquid level low limit value. When the liquid level meter 7 reaches a set liquid level high limit value, the electric overflow valve 9 is opened, clear water on the upper part of the sedimentation tank 8 flows back to the cooling tower tank 1, when the liquid level meter 7 reaches a set liquid level low limit value, the electric overflow valve 9 is closed, and sludge in the sedimentation tank 8 is manually cleaned once every half year.
In addition, it should be noted that the specific embodiments described in the present specification may be different in the components, the shapes of the components, the names of the components, and the like, and the above description is only an example of the structure of the present invention. All the equivalent changes or simple changes made according to the structure, characteristics and principle of the utility model are included in the protection scope of the utility model. Various modifications, additions and substitutions may be made by those skilled in the art without departing from the scope of the invention as defined in the accompanying claims.
Claims (3)
1. The utility model provides a power plant's auxiliary engine cooling water treatment system which characterized in that: the device comprises a cooling tower pool (1), a water pump (2), an electric water inlet valve (3), an electrochemical treatment device (4), an electric water outlet valve (5), an automatic blowdown valve (6), a liquid level meter (7), a sedimentation tank (8) and an electric overflow valve (9), wherein the cooling tower pool (1) is connected with the water pump (2) through a first pipeline (01), the water pump (2) is connected with the electrochemical treatment device (4) through a second pipeline (02), the electric water inlet valve (3) is installed on the second pipeline (02), the electrochemical treatment device (4) is connected with the cooling tower pool (1) through a third pipeline (03), the electric water outlet valve (5) is installed on the third pipeline (03), the electrochemical treatment device (4) is connected with the sedimentation tank (8) through a fourth pipeline (04), and the automatic blowdown valve (6) is installed on the fourth pipeline (04), the liquid level meter (7) is positioned in the sedimentation tank (8), the sedimentation tank (8) is connected with the third pipeline (03) through a fifth pipeline (05), and the electric overflow valve (9) is installed on the fifth pipeline (05).
2. The power plant auxiliary machinery cooling water treatment system of claim 1, characterized in that: the electrochemical treatment device (4) is positioned above the sedimentation tank (8).
3. The power plant auxiliary machinery cooling water treatment system of claim 1, characterized in that: the bottom of the electrochemical treatment device (4) is connected with the top of the sedimentation tank (8) through an automatic blowdown valve (6), a liquid level meter (7) is installed in the sedimentation tank (8), and the overflow of the sedimentation tank (8) is controlled through high and low limit signals of the liquid level.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921018588.8U CN210825557U (en) | 2019-07-02 | 2019-07-02 | Power plant auxiliary engine cooling water treatment system |
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| CN201921018588.8U CN210825557U (en) | 2019-07-02 | 2019-07-02 | Power plant auxiliary engine cooling water treatment system |
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| CN210825557U true CN210825557U (en) | 2020-06-23 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110342616A (en) * | 2019-07-02 | 2019-10-18 | 华电电力科学研究院有限公司 | A kind of Controlling Auxiliaries in Power Plants cooling water treatment system and processing method |
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2019
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110342616A (en) * | 2019-07-02 | 2019-10-18 | 华电电力科学研究院有限公司 | A kind of Controlling Auxiliaries in Power Plants cooling water treatment system and processing method |
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