CN214476448U - Nuclear power plant reactor pool radioactive cleaning wastewater filtering device - Google Patents
Nuclear power plant reactor pool radioactive cleaning wastewater filtering device Download PDFInfo
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- CN214476448U CN214476448U CN202023131983.2U CN202023131983U CN214476448U CN 214476448 U CN214476448 U CN 214476448U CN 202023131983 U CN202023131983 U CN 202023131983U CN 214476448 U CN214476448 U CN 214476448U
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- lead shielding
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- filter chamber
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Abstract
The utility model belongs to the technical field of nuclear power radiation protection, concretely relates to reactor pool radioactivity cleaning waste water filter equipment of nuclear power plant. Comprises a filter cell top cover, a filter cell, a water inlet pipeline, a liquid outlet main pipe, a water outlet pipeline, a sewage discharge pipeline and a shielding box body. The utility model discloses the device can filter the radioactive particle among the high radioactivity level washing waste water and enrich, through the radiation level of renew cartridge in order to reduce waste water, is equipped with shielding box simultaneously in order to reduce the influence of the interior radioactive particle enrichment of filter cell to peripheral region and staff.
Description
Technical Field
The utility model belongs to the technical field of nuclear power radiation protection, concretely relates to reactor pool radioactivity cleaning waste water filter equipment of nuclear power plant.
Background
During the nuclear power plant refueling overhaul period, the bottom and the inner wall of the reactor core water tank and the component water tank can be cleaned, and cleaning wastewater with high radioactivity level is drained from the drainage pipelines of the reactor core water tank and the component water tank to related systems in a gravity drainage mode.
At present, high-radioactivity level cleaning wastewater is powered by a pump body, is led out from a drainage pipeline and then is filtered to remove most radioactivity and is led into a related system so as to reduce the radioactivity level of a primary circuit, shorten the discharge time of the radioactive wastewater and reduce the purification pressure of a purification unit of the related system. However, the existing filtering device has the following disadvantages: 1. the installation position of a water outlet pipeline of the filter element cavity is higher, so that the bottom of the filter element cavity is easy to enrich radioactive particles with high radiation level; 2. the sewage discharge pipeline is bent at a plurality of positions and has extremely fine pipe diameter, which is not beneficial to discharging the high-radiation level radioactive particles enriched at the bottom of the cavity of the filter element; 3. the lead shielding is thick and cannot be disassembled, so that the movement and transportation are slow, the transportation time is prolonged, and the irradiated dose of transportation personnel is increased.
Therefore, it is desirable to design a filtering apparatus for radioactive cleaning wastewater of a reactor pool in a nuclear power plant to solve the above problems.
Disclosure of Invention
An object of the utility model is to provide a reactor pond radioactivity cleaning waste water filter equipment of nuclear power plant to reduce a return circuit radioactivity level.
The technical scheme of the utility model as follows:
a nuclear power plant reactor pool radioactive cleaning wastewater filtering device comprises a filter chamber top cover, a filter chamber, a water inlet pipeline, a liquid outlet main pipe, a water outlet pipeline, a sewage discharge pipeline and a shielding box body;
the top cover of the filter chamber is buckled above the filter chamber;
a filter element is arranged in the filter chamber;
the bottom surface of the small filter chamber is a spherical surface, and the central position of the bottom surface is the lowest point;
a liquid inlet is formed in the upper part of the side wall of the small filter chamber and is communicated with a water inlet pipeline;
a water inlet pipeline isolating valve is arranged on the water inlet pipeline;
a liquid outlet is formed in the center of the bottom surface of the small filter chamber and is communicated with a liquid outlet main pipe, and two branch pipes led out from the liquid outlet main pipe are respectively a water outlet pipeline and a sewage discharge pipeline;
the water outlet pipeline is provided with a water outlet pipeline isolating valve, and the sewage draining pipeline is provided with a sewage draining pipeline isolating valve;
the shielding box body is arranged outside the small filter chamber and comprises an upper lead shielding plate, a lower lead shielding plate, a left lead shielding plate, a right lead shielding plate, a front lead shielding plate and a rear lead shielding plate;
the lower lead shielding plate is fixedly connected with the rear lead shielding plate;
the liquid outlet header pipe penetrates out of the lead shielding plate at the lower side;
the water inlet pipeline penetrates out of the rear lead shielding plate, and the water inlet pipeline isolation valve is positioned on the outer side of the rear lead shielding plate;
setting up a cubic frame by taking the lower lead shielding plate and the rear lead shielding plate as basic surfaces, and processing slots on the frame to form a left lead shielding plate slot, a right lead shielding plate slot, an upper lead shielding plate slot and a front lead shielding plate slot;
the lead shielding plate on the left side, the lead shielding plate on the right side, the lead shielding plate on the upper side and the lead shielding plate on the front side are respectively inserted into the corresponding slots, and the lead shielding plates on the lower side and the lead shielding plate on the rear side form a box structure together.
Preferably, bottom casters are provided at four corners of the bottom surface of the lower lead shielding plate, respectively.
Preferably, the two bottom casters at the front side of the bottom surface of the lower lead shielding plate have a movement guide function.
Preferably, the filter chamber top cover is fixedly connected with the filter chamber through a buckle.
Preferably, handles are respectively arranged on the left lead shielding plate, the right lead shielding plate, the upper lead shielding plate and the front lead shielding plate, so as to facilitate field adjustment.
Preferably, the liquid inlet in the side wall of the filter chamber is positioned higher than the filter element.
Preferably, when the wastewater is filtered, the high-radioactivity horizontal cleaning wastewater is led out from the drainage pipeline through the temporary hose and then is connected with the water inlet pipeline, enters the filter chamber through the control of the water inlet pipeline isolation valve for filtering, and is discharged through the water outlet pipeline through the control of the water outlet pipeline isolation valve; and after the cleaning wastewater is completely filtered, the sewage after the filter chamber is cleaned is discharged through a sewage discharge pipeline by controlling through a sewage discharge pipeline isolating valve.
The beneficial effects of the utility model reside in that:
(1) the utility model discloses the device can filter the radioactive particle among the high radioactivity level washing waste water and enrich, through the radiation level of renew cartridge in order to reduce waste water, is equipped with shielding box simultaneously in order to reduce the influence of the interior radioactive particle enrichment of filter cell to peripheral region and staff.
(2) The utility model discloses the screening plate of thickness can nimble dismouting in the device, and then can improve the flexibility that the device removed.
(3) The utility model discloses the device will go out the liquid house steward and set up in the bottommost of filter cell, avoids high radioactivity level particle deposit in the filter cell, satisfies the requirement of nuclear power scene used repeatedly many times.
Drawings
FIG. 1 is a schematic view of a filtration apparatus;
fig. 2 is a schematic plan view of the movable lead shielding plate.
In the figure: 1. a filter cell top cover; 2. a filter cell; 3. a left front foot guide wheel; 4. an outlet line isolation valve; 5. an outlet line; 6. a right front foot guide wheel; 7. a blowdown line isolation valve; 8. a waste line; 9. a lower lead shielding plate; 10. a left rear bottom caster; 11. a right rear bottom caster; 12. a rear lead shielding plate; 13. a water inlet line isolation valve; 14. a water inlet line; 15. a lead shielding plate slot on the left side; 16. a right lead shielding plate slot; 17. an upper lead shielding plate slot; 18. a front lead shielding plate slot; 19. a left lead shield plate; 20. a left lead shielding plate handle; 21. a right lead shield plate; 22. a right lead shielding plate handle; 23. a front lead shield plate; 24. a front lead shielding plate handle; 25. an upper lead shield plate; 26. and the upper lead shielding plate handle.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
The filtering device for the radioactive cleaning wastewater of the reactor pool of the nuclear power plant as shown in the figures 1-2 comprises a filter chamber top cover 1, a filter chamber 2, a water inlet pipeline 14, a liquid outlet main pipe, a water outlet pipeline 5, a sewage discharge pipeline 8, a shielding box body and bottom pulleys.
The filter cell top cover 1 is buckled above the filter cell 2 and fixed by a buckle. A filter cartridge is placed inside the filter chamber 2. When the filter cartridge needs to be replaced, the filter chamber top cover 1 is opened to perform the replacement operation. The bottom surface of the small filter chamber 2 is a spherical surface, and the central position of the bottom surface is the lowest point.
The upper part of the side wall of the filter chamber 2 is provided with a liquid inlet which is communicated with a water inlet pipeline 14. The liquid inlet is higher than the filter element. And a water inlet pipeline isolation valve 13 is arranged on the water inlet pipeline 14 and used for controlling the on-off of the water inlet pipeline 14.
A liquid outlet is arranged at the center of the bottom surface of the small filter chamber 2 and is communicated with a liquid outlet main pipe, and two branch pipes led out from the liquid outlet main pipe are respectively a water outlet pipeline 5 and a sewage discharge pipeline 8. The water outlet pipeline 5 is provided with a water outlet pipeline isolation valve 4, and the sewage discharge pipeline 8 is provided with a sewage discharge pipeline isolation valve 7.
The shielding box body is arranged outside the small filter chamber 2 and comprises an upper lead shielding plate 25, a lower lead shielding plate 9, a left lead shielding plate 19, a right lead shielding plate 21, a front lead shielding plate 23 and a rear lead shielding plate 12.
The lower lead shielding plate 9 and the rear lead shielding plate 12 are fixedly connected with each other due to the pipeline penetration. The liquid outlet header pipe penetrates out of the lead shielding plate 9 at the lower side. The water inlet pipeline 14 penetrates out of the rear lead shielding plate 12, and the water inlet pipeline isolation valve 13 is located on the outer side of the rear lead shielding plate 12.
Bottom casters are respectively arranged at four corners of the bottom surface of the lower lead shielding plate 9, wherein the two bottom casters at the front side have a movement guiding function. The four bottom casters are respectively a left front bottom guide wheel 3, a right front bottom guide wheel 6, a left rear bottom caster 10 and a right rear bottom caster 11.
Follow the edge of downside plumbous shield plate 9 and rear side plumbous shield plate 12 is equipped with the channel-section steel respectively, simultaneously with downside plumbous shield plate 9 and rear side plumbous shield plate 12 be the basal plane, adopt the channel-section steel to set up the cube frame, constitute left side plumbous shield plate slot 15, right side plumbous shield plate slot 16, upside plumbous shield plate slot 17 and front side plumbous shield plate slot 18. The left lead shielding plate 19, the right lead shielding plate 21, the upper lead shielding plate 25 and the front lead shielding plate 23 are respectively inserted into the corresponding slots, and form a box structure together with the lower lead shielding plate 9 and the rear lead shielding plate 12.
The lead shielding plate handle is characterized in that a left lead shielding plate handle 20, a right lead shielding plate handle 22, an upper lead shielding plate handle 26 and a front lead shielding plate handle 24 are respectively arranged on the left lead shielding plate 19, the right lead shielding plate 21, the upper lead shielding plate 25 and the front lead shielding plate 23, so that the movable lead shielding plate can be conveniently installed or disassembled on site, and the installation quantity of the lead shielding plates on the slots can be flexibly adjusted according to different requirements of the site on the moving time and the shielding effect.
When the wastewater is filtered, the high-radioactivity horizontal cleaning wastewater is led out from a drainage pipeline through a temporary hose and then is connected with a water inlet pipeline 14, is controlled to enter a filter chamber 2 through a water inlet pipeline isolation valve 13 for filtering, and is controlled to be discharged through a water outlet pipeline 5 through a water outlet pipeline isolation valve 4; and after the cleaning wastewater is completely filtered, cleaning the filter chamber 2, and discharging the cleaned sewage from a sewage discharge pipeline 8 under the control of a sewage discharge pipeline isolation valve 7.
Claims (7)
1. The utility model provides a nuclear power plant's reactor pond radioactivity cleaning waste water filter equipment which characterized in that: comprises a filter chamber top cover (1), a filter chamber (2), a water inlet pipeline (14), a liquid outlet main pipe, a water outlet pipeline (5), a sewage discharge pipeline (8) and a shielding box body;
the filter chamber top cover (1) is buckled above the filter chamber (2);
a filter element is arranged in the filter chamber (2);
the bottom surface of the small filter chamber (2) is a spherical surface, and the central position of the bottom surface is the lowest point;
a liquid inlet is arranged at the upper part of the side wall of the filter chamber (2) and is communicated with a water inlet pipeline (14);
a water inlet pipeline isolating valve (13) is arranged on the water inlet pipeline (14);
a liquid outlet is formed in the center of the bottom surface of the small filter chamber (2) and is communicated with a liquid outlet main pipe, and two branch pipes led out from the liquid outlet main pipe are respectively a water outlet pipeline (5) and a sewage discharge pipeline (8);
a water outlet pipeline isolation valve (4) is arranged on the water outlet pipeline (5), and a sewage drainage pipeline isolation valve (7) is arranged on the sewage drainage pipeline (8);
the shielding box body is arranged outside the small filter chamber (2) and comprises an upper lead shielding plate (25), a lower lead shielding plate (9), a left lead shielding plate (19), a right lead shielding plate (21), a front lead shielding plate (23) and a rear lead shielding plate (12);
the lower lead shielding plate (9) is fixedly connected with the rear lead shielding plate (12);
the liquid outlet header pipe penetrates out of the lead shielding plate (9) at the lower side;
the water inlet pipeline (14) penetrates out of the rear lead shielding plate (12), and the water inlet pipeline isolation valve (13) is positioned on the outer side of the rear lead shielding plate (12);
a cubic frame is erected by taking the lower lead shielding plate (9) and the rear lead shielding plate (12) as basic surfaces, and slots are processed on the frame to form a left lead shielding plate slot (15), a right lead shielding plate slot (16), an upper lead shielding plate slot (17) and a front lead shielding plate slot (18);
the lead shielding plate structure is characterized in that the left lead shielding plate (19), the right lead shielding plate (21), the upper lead shielding plate (25) and the front lead shielding plate (23) are respectively inserted into corresponding slots, and the left lead shielding plate, the right lead shielding plate, the upper lead shielding plate and the front lead shielding plate form a box structure together with the lower lead shielding plate (9) and the rear lead shielding plate (12).
2. The nuclear power plant reactor pool radioactive cleaning wastewater filtering device of claim 1, wherein: bottom casters are respectively arranged at four corners of the bottom surface of the lower lead shielding plate (9).
3. The nuclear power plant reactor pool radioactive cleaning wastewater filtering device of claim 2, wherein: and the two bottom casters at the front side of the bottom surface of the lower lead shielding plate (9) have the function of moving and guiding.
4. The nuclear power plant reactor pool radioactive cleaning wastewater filtering device of claim 1, wherein: the filter small chamber top cover (1) is fixedly connected with the filter small chamber (2) through a buckle.
5. The nuclear power plant reactor pool radioactive cleaning wastewater filtering device of claim 1, wherein: handles are respectively arranged on the left lead shielding plate (19), the right lead shielding plate (21), the upper lead shielding plate (25) and the front lead shielding plate (23) so as to facilitate field adjustment.
6. The nuclear power plant reactor pool radioactive cleaning wastewater filtering device of claim 1, wherein: the liquid inlet on the side wall of the filter chamber (2) is higher than the filter element.
7. The device for filtering the radioactive cleaning wastewater in the reactor pool of the nuclear power plant as claimed in any one of claims 1 to 6, wherein: when the wastewater is filtered, the high-radioactivity horizontal cleaning wastewater is led out from a drainage pipeline through a temporary hose and then is connected with a water inlet pipeline (14), is controlled to enter a filter chamber (2) through a water inlet pipeline isolation valve (13) for filtering, and is controlled to be discharged through a water outlet pipeline (5) through a water outlet pipeline isolation valve (4); after the cleaning wastewater is completely filtered, the sewage after cleaning the filter chamber (2) is controlled by a sewage drainage pipeline (8) through a sewage drainage pipeline isolation valve (7) to be discharged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023131983.2U CN214476448U (en) | 2020-12-23 | 2020-12-23 | Nuclear power plant reactor pool radioactive cleaning wastewater filtering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023131983.2U CN214476448U (en) | 2020-12-23 | 2020-12-23 | Nuclear power plant reactor pool radioactive cleaning wastewater filtering device |
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| CN214476448U true CN214476448U (en) | 2021-10-22 |
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| CN202023131983.2U Active CN214476448U (en) | 2020-12-23 | 2020-12-23 | Nuclear power plant reactor pool radioactive cleaning wastewater filtering device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115025530A (en) * | 2022-05-10 | 2022-09-09 | 中国核电工程有限公司 | Small-size radioactive waste liquid filter module with from shielding function |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115025530A (en) * | 2022-05-10 | 2022-09-09 | 中国核电工程有限公司 | Small-size radioactive waste liquid filter module with from shielding function |
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