CN204924394U - A equipment for large -scale water pitcher liquid level switch of check -up - Google Patents
A equipment for large -scale water pitcher liquid level switch of check -up Download PDFInfo
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- CN204924394U CN204924394U CN201520616169.XU CN201520616169U CN204924394U CN 204924394 U CN204924394 U CN 204924394U CN 201520616169 U CN201520616169 U CN 201520616169U CN 204924394 U CN204924394 U CN 204924394U
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Abstract
The utility model belongs to the technical field of the nuclear power station overhauls. Consume a large amount of manpowers, the problem of inefficiency for the method of solving the large -scale water pitcher liquid level switch of present check -up, the utility model provides an equipment for large -scale water pitcher liquid level switch of check -up is including centrifugal pump, flow control valve, manometer, filling valve door, liquid level scale valve, drainage valve and liquid level scale, this liquid level scale is fixed in the side of riser, flow control valve respectively with the export of centrifugal pump the entry of manometer passes through the pipeline intercommunication, the filling valve door respectively with the export of manometer the riser passes through the pipeline intercommunication, liquid level scale valve respectively with the export of manometer the liquid level scale passes through the pipeline intercommunication, the drainage valve respectively with the filling valve door liquid level scale valve passes through the pipeline intercommunication. The utility model discloses practice thrift the manpower that check -up liquid level switch consumed, improved check -up liquid level switch's efficiency.
Description
Technical field
The utility model belongs to the technical field of nuclear power station maintenance, is specifically related to a kind of equipment for verifying large-scale water pot level switch.
Background technology
Large-scale water pot is installed in nuclear power station, this large-scale water pot, for storing water, on the one hand for the normal operation of nuclear power station provides with water, provides urgent water when accident appears in nuclear power station on the other hand, so large-scale water pot is most important, ensure that the moisture storage capacity in large-scale water pot meets the requirements.As shown in Figure 1, the side of large-scale water pot 10 is provided with standpipe 11, and large-scale water pot 10 is communicated with by stopple coupon 14 with standpipe 11, and the water level in such standpipe 11 and the water level in large-scale water pot 10 are contour.Standpipe 11 is provided with several level switches usually, as shown in FIG., standpipe 11 is provided with the first level switch 12 and the second level switch 13, and the position of the second level switch 13 is higher than the position of the first level switch 12, when the water level in standpipe 11 is lower than the first level switch 12, first level switch 12 closes and sends electric signal to water pump (not shown), water pump receives after this electric signal to water-filling in large-scale water pot 10, to ensure having sufficient water storage in large-scale water pot 10, prevent the situation that nuclear power generating sets need with not having water during water in large-scale water pot 10, when the water level in standpipe 11 is higher than the second level switch 13, second level switch 13 closes and sends electric signal to water pump, water pump receive second level switch 13 send electric signal after from large-scale water pot 10 to extracardiac pumping, to prevent water storage in large-scale water pot 10 too many, because the pressure that when water storage is too many, large-scale water pot 10 inside is born may well cause large-scale water pot 10 to damage very much.Water level in large-scale water pot 10 can be controlled by the first level switch 12 and the second level switch 13, and multiple level switch can be set according to actual needs on standpipe 11 to make to correspond to actual needs to the control of the water level in large-scale water pot 10.In sum, in the process controlled the water level in large-scale water pot 10, level switch is most important, so will verify level switch, causes occurring abnormal to the control of large-scale water pot 10 middle water level to avoid level switch to break down.
During current verification level switch, first hand pump is used to fetch water in standpipe 11, and calculate the volume of the water squeezed in standpipe 11, basis squeezes into the height of volume computing standpipe 11 middle water level of the water in standpipe 11 again, then the action situation of level switch is monitored, as shown in Figure 1, such as exceed the second level switch 13 by the water level calculated in standpipe 11, then monitor the whether closed and water pump of the second level switch 13 whether from large-scale water pot 10 to extracardiac pumping, whether working properly to verify the second level switch 13.The method of above-mentioned verification level switch at least needs 7-8 people to share out the work and help one another, and needs to arrange special messenger's first assembly and connection pipe fitting valve etc., then send special messenger's nurse and operator pressure type pump and valve, sends special messenger to monitor level switch action situation, need more manpower in a word; Standpipe 11 is very high, highly usually has 15m, and water storage is more, and using hand pump to fetch water in standpipe 11 needs the manpower of at substantial, and inefficiency, longevity of service; And when nuclear power generating sets run duration verification level switch, shorter to the time of maintenance personal, if the verification operation of level switch can not be completed at the appointed time, the operation of nuclear power generating sets also can be affected.
Utility model content
In order to solve the manpower of method at substantial, the problem of inefficiency of the large-scale water pot level switch of verification at present, the utility model proposes a kind of equipment for verifying large-scale water pot level switch, to save the manpower that verification level switch consumes, improve the efficiency of verification level switch.
The utility model comprises centrifugal pump, flow control valve, tensimeter, water-filling valve, Liquid level scale valve, water discharging valve and Liquid level scale for the equipment verifying large-scale water pot level switch; This Liquid level scale is transparent pipeline, and surface indicates scale, is fixed on the side of standpipe, and the axis being parallel of the axis of described Liquid level scale and described standpipe; Described flow control valve passes through pipeline connection with described centrifugal delivery side of pump, described manometric entrance respectively; Described water-filling valve passes through pipeline connection with described manometric outlet, described standpipe respectively; Described Liquid level scale valve passes through pipeline connection with described manometric outlet, described Liquid level scale respectively; Described water discharging valve passes through pipeline connection with described water-filling valve, described Liquid level scale valve respectively.
Wherein, also comprise cabinet-type go-cart, this cabinet-type go-cart comprises upper cover, cabinet and four castors; The side of described cabinet is provided with into water interface, drainage interface, water-filling interface and Liquid level scale interface; Described centrifugal pump, described flow control valve, described tensimeter, described water-filling valve, described Liquid level scale valve, described water discharging valve are all fixed in described cabinet, the entrance of described centrifugal pump with described enter water interface be connected, described water discharging valve is connected with described drainage interface, described water-filling valve is connected with described water-filling interface, described water-filling interface is connected with described standpipe, described Liquid level scale valve is connected with described Liquid level scale interface, and described Liquid level scale interface is connected with described Liquid level scale; Described upper cover is connected with the top of described cabinet, and described four castors are individually fixed in the bottom of described cabinet.
Wherein, the side of described cabinet is also provided with handle.
Wherein, described upper cover and described cabinet are fastened togather by snap close.
Wherein, described Liquid level scale interface is all connected by flexible pipe with described standpipe with described Liquid level scale, described water-filling interface.
Wherein, two castors being positioned at described cabinet the same side are the universal caster wheel with brake function, and castor described in two other is direction-caster.
Wherein, be connected by larynx hoop between described Liquid level scale with described standpipe.
Wherein, described Liquid level scale is flexible pipe.
The utility model has following beneficial effect for the equipment verifying large-scale water pot level switch:
Centrifugal pump of the present utility model, flow control valve, tensimeter, water-filling valve, Liquid level scale valve, water discharging valve are all positioned at the inside of cabinet of the present utility model, and connected each other, when using the utility model verification level switch, without the need to assembling centrifugal pump, flow control valve, tensimeter, water-filling valve, Liquid level scale valve, water discharging valve at the scene, save the time and use more convenient, do not need to send special messenger to nurse these equipment in the process of verification level switch, decrease manpower and expend yet.When using the utility model verification level switch, switch on power to centrifugal pump, large-scale water pot water-filling can be given rapidly, highly shortened to the time of large-scale water pot water-filling compared with giving large-scale water pot water-filling with use hand pump, improve efficiency, special messenger need not be sent to use hand pump to fetch water in large-scale water pot simultaneously, save manpower.Liquid level scale of the present utility model and standpipe form U-shaped structure, and the height of water level of so direct reading Liquid level scale just obtains the height of water level of standpipe, measures without the need to re-using tape measure, make the operation of verification level switch simply, conveniently, safely, accurately.The utility model substantially reduces the working time verifying large-scale water pot level switch, shorten the duration, improve the efficiency of verification level switch, use the utility model can also carry out definite value inspection to large-scale water pot, can also according to the volume of water storage in the large-scale water pot of the high computational of standpipe middle water level.After the operation completing verification level switch, directly flexible pipe and Liquid level scale can be arranged and be accommodated in cart type rack, save space, facilitate assembling transport, also use in convenient work afterwards.
Accompanying drawing explanation
Fig. 1 is the structural representation of large-scale water pot;
Fig. 2 is that the utility model is for verifying the structural representation of the cabinet-type go-cart of the equipment of large-scale water pot level switch;
Fig. 3 is that the utility model is for verifying the using state schematic diagram of the equipment of large-scale water pot level switch.
Embodiment
The technical solution of the utility model is introduced below in conjunction with accompanying drawing.
As shown in Figures 2 and 3, the equipment for verifying large-scale water pot level switch comprises cabinet-type go-cart 30, centrifugal pump 16, flow control valve 17, tensimeter 18, water-filling valve 19, Liquid level scale valve 20, water discharging valve 21 and Liquid level scale 15.Liquid level scale 15 is transparent pipeline, it can be such as transparent flexible pipe, after such use completes the verification of level switch for the equipment verifying large-scale water pot level switch, can Liquid level scale 15 be accommodated in cabinet-type go-cart 30, save the space of the hold facility for verifying large-scale water pot level switch, also convenient transport; Liquid level scale 15 surface indicates scale, and during verification level switch, Liquid level scale 15 is fixed on the side of standpipe 11 by larynx hoop 22, and the axis being parallel of the axis of Liquid level scale 15 and standpipe 11.Flow control valve 17 passes through pipeline connection, for regulating flow and the pressure of liquid in pipeline with the outlet of centrifugal pump 16, the entrance of tensimeter 18 respectively.The outlet of tensimeter 18 passes through pipeline connection with water-filling valve 19, Liquid level scale valve 20 respectively, and tensimeter 18 is for the pressure in monitored pipeline.Water discharging valve 21 passes through pipeline connection with water-filling valve 19, Liquid level scale valve 20 respectively.
As shown in Figure 2, cabinet-type go-cart 30 comprises upper cover 31, cabinet 32 and four castors 33.The side of cabinet 32 is provided with into water interface 37, drainage interface 36, water-filling interface 34 and Liquid level scale interface 35.Centrifugal pump 16, flow control valve 17, tensimeter 18, water-filling valve 19, Liquid level scale valve 20, water discharging valve 21 are all fixed in cabinet 32, centrifugal pump 16 is that small-sized centrifugal pump is can put into cabinet 32, the entrance of centrifugal pump 16 with enter water interface 37 and be connected, water discharging valve 21 is connected with drainage interface 36, water-filling valve 19 is connected with water-filling interface 34, and Liquid level scale valve 20 is connected with Liquid level scale interface 35.
Upper cover 31 is connected with the top of cabinet 32, and upper cover 31 and cabinet 32 can be fastened togather by snap close 39.Four castors 33 are individually fixed in the bottom of cabinet 32, wherein, two castors 33 being positioned at the same side of cabinet 32 are the universal caster wheel with brake function, and two other castor is direction-caster, to make cabinet-type go-cart 30 turn to flexibly, user-friendly; Occur after can also preventing cabinet-type go-cart 30 from coming to a complete stop with the universal caster wheel of brake function sliding, ensure carrying out smoothly of large-scale water pot level switch verification operation.The side of cabinet 32 is also provided with handle 38, for the cabinet type go-cart 30 of person's pusher easy to use.
As shown in Figure 3, in order to represent the annexation known between centrifugal pump 16, flow control valve 17, tensimeter 18, water-filling valve 19, Liquid level scale valve 20, water discharging valve 21 in Fig. 3, the annexation of centrifugal pump 16, flow control valve 17, tensimeter 18, water-filling valve 19, Liquid level scale valve 20, water discharging valve 21 four of cabinet 32 sides do not drawn, because can be blocked in the side of cabinet 32.Introduce the utility model below for verifying the using method of the equipment of large-scale water pot level switch.
The first step, cabinet-type go-cart 30 is pushed into operation field, being connected entering water interface 37 by flexible pipe with the preprepared container filling demineralized water, drainage interface 36 is also connected with the above-mentioned container filling demineralized water, using demineralized water to be to prevent large-scale water pot 10 and standpipe 11 to be corroded; Water-filling interface 34 is connected with the freeing port of standpipe 11 by flexible pipe 23, Liquid level scale interface 35 is connected with Liquid level scale 15 by flexible pipe 23, Liquid level scale 15 is fixed on the side of standpipe 11 by larynx hoop 22, and " 0 " scale of Liquid level scale 15 is flushed with the bottom of standpipe 11, Liquid level scale 15 run-off the straight makes the axis of Liquid level scale 15 and the axis being parallel of standpipe 11, if can affect the accuracy of the result of verification level switch.
Second step, close water discharging valve 21, open water-filling valve 19, open Liquid level scale valve 20, open the power supply of centrifugal pump 16, then centrifugal pump 16 is by demineralized water introduction pipeline, demineralized water is successively through entering water interface 37, centrifugal pump 16, flow control valve 17 and tensimeter 18, after demineralized water flows out from tensimeter 18, a part is through water-filling valve 19, water-filling interface 34 flows in standpipe 11 and large-scale water pot 10, a part is through Liquid level scale valve 20, Liquid level scale interface 35 flows in Liquid level scale 15, and Liquid level scale 15 and standpipe 11 form U-shaped device, in Liquid level scale 15, the height of demineralized water is consistent with the height of demineralized water in standpipe 11, the height of demineralized water in standpipe 11 just can be obtained by the height reading demineralized water in Liquid level scale 15.
3rd step, as shown in Figure 3, standpipe 11 is provided with the first level switch 12, second level switch 13 and the 3rd level switch 24, successively from low to high, wherein the position of the 3rd level switch 24 is the highest permission height of large-scale water pot 10 water storage for first level switch 12, second level switch 13 and the 3rd position of level switch 24 on standpipe 11.By centrifugal pump 16 to water-filling in standpipe 11 and Liquid level scale 15, until the height of demineralized water is more than the 3rd level switch 24, whether the height of demineralized water can be obtained by the height reading demineralized water in Liquid level scale 15 more than the 3rd level switch 24.The height of demineralized water is more than after the 3rd level switch 24, and whether detect the 3rd level switch 24 with multimeter and close, if closed, the 3rd level switch 24 is working properly, if not closed explanation the 3rd level switch 24 operation irregularity needs to carry out adjusting and keeping in repair.After having detected the 3rd level switch 24, disconnect the power supply of centrifugal pump 16, opening water discharge valve 21, the demineralized water in such standpipe 11 and Liquid level scale 15 starts to discharge, and is introduced filling in the container of demineralized water by drainage interface 36.In the process of standpipe 11 and Liquid level scale 15 draining, when the water level decreasing of demineralized water is to the second level switch 13, detect the second level switch 13 with multimeter whether to close, if closed, the second level switch 13 is working properly, if not closed explanation second level switch 13 operation irregularity needs to carry out adjusting and keeping in repair; When the water level decreasing of demineralized water is to the first level switch 12, detect the first level switch 12 with multimeter whether to close, if closed, the first level switch 12 is working properly, if not closed explanation first level switch 12 operation irregularity needs to carry out adjusting and keeping in repair.Repeat this step several times, repeatedly can verify level switch so on the one hand, improve the accuracy of check results; The level switch carrying out adjusting and keeping in repair can be verified on the other hand.Wherein in this step, if close water-filling valve 19 and Liquid level scale valve 20 simultaneously, the water level in Liquid level scale 15 and standpipe 11 can be made to rest on a certain height, more flexible to the control of the water level in standpipe 11 and Liquid level scale 15 like this.Difference according to actual needs, the number of the level switch that standpipe 11 is arranged also can be different, and each level switch is positioned at different height, uses the utility model also can verify the level switch of other numbers according to above-mentioned steps.
6th step, verification level switch operation complete after, opening water discharge valve 21 reclaims demineralized water, until standpipe 11 is emptying, then Liquid level scale 15 is unloaded from standpipe 11, water-filling interface 34 and standpipe 11 are disconnected, Liquid level scale interface 35 and Liquid level scale 15 are disconnected, flexible pipe 23 and Liquid level scale 15 are accommodated in the cabinet 32 of cabinet-type go-cart 30, use after convenient.
Wherein, enter water interface 37 and be connected the identical container filling demineralized water with drainage interface 36, be conducive to recycling of demineralized water like this, because the utility model in use needs repeatedly to verify level switch for the equipment verifying large-scale water pot level switch, demineralized water is discharged to after in container through drainage interface 36, when again carrying out liquid level verification, just the demineralized water process in this container can be entered water interface 37 and be incorporated in pipeline and recycle.
In standpipe 11, fluid level transmitter (not shown) is installed usually, for detecting the height of standpipe 11 middle water level in real time, by reading the height of the water level of Liquid level scale 15 of the present utility model, the height of water level of the standpipe 11 detected with fluid level transmitter compares, and can verify that fluid level transmitter detects the accuracy of the liquid level of standpipe 11.
Claims (8)
1. for verifying an equipment for large-scale water pot level switch, it is characterized in that, comprising centrifugal pump, flow control valve, tensimeter, water-filling valve, Liquid level scale valve, water discharging valve and Liquid level scale; This Liquid level scale is transparent pipeline, and surface indicates scale, is fixed on the side of standpipe, and the axis being parallel of the axis of described Liquid level scale and described standpipe; Described flow control valve passes through pipeline connection with described centrifugal delivery side of pump, described manometric entrance respectively; Described water-filling valve passes through pipeline connection with described manometric outlet, described standpipe respectively; Described Liquid level scale valve passes through pipeline connection with described manometric outlet, described Liquid level scale respectively; Described water discharging valve passes through pipeline connection with described water-filling valve, described Liquid level scale valve respectively.
2. the equipment for verifying large-scale water pot level switch according to claim 1, is characterized in that, also comprise cabinet-type go-cart, and this cabinet-type go-cart comprises upper cover, cabinet and four castors; The side of described cabinet is provided with into water interface, drainage interface, water-filling interface and Liquid level scale interface; Described centrifugal pump, described flow control valve, described tensimeter, described water-filling valve, described Liquid level scale valve, described water discharging valve are all fixed in described cabinet, the entrance of described centrifugal pump with described enter water interface be connected, described water discharging valve is connected with described drainage interface, described water-filling valve is connected with described water-filling interface, described water-filling interface is connected with described standpipe, described Liquid level scale valve is connected with described Liquid level scale interface, and described Liquid level scale interface is connected with described Liquid level scale; Described upper cover is connected with the top of described cabinet, and described four castors are individually fixed in the bottom of described cabinet.
3. the equipment for verifying large-scale water pot level switch according to claim 2, it is characterized in that, the side of described cabinet is also provided with handle.
4. the equipment for verifying large-scale water pot level switch according to Claims 2 or 3, it is characterized in that, described upper cover and described cabinet are fastened togather by snap close.
5. the equipment for verifying large-scale water pot level switch according to Claims 2 or 3, it is characterized in that, described Liquid level scale interface is all connected by flexible pipe with described standpipe with described Liquid level scale, described water-filling interface.
6. the equipment for verifying large-scale water pot level switch according to Claims 2 or 3, is characterized in that, two castors being positioned at described cabinet the same side are the universal caster wheel with brake function, and castor described in two other is direction-caster.
7. the equipment for verifying large-scale water pot level switch according to any one of claim 1-3, be is characterized in that, be connected between described Liquid level scale with described standpipe by larynx hoop.
8. the equipment for verifying large-scale water pot level switch according to any one of claim 1-3, it is characterized in that, described Liquid level scale is flexible pipe.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520616169.XU CN204924394U (en) | 2015-08-14 | 2015-08-14 | A equipment for large -scale water pitcher liquid level switch of check -up |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520616169.XU CN204924394U (en) | 2015-08-14 | 2015-08-14 | A equipment for large -scale water pitcher liquid level switch of check -up |
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| CN204924394U true CN204924394U (en) | 2015-12-30 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110017885A (en) * | 2019-04-24 | 2019-07-16 | 中国长江电力股份有限公司 | A kind of roof-mounted magnetic double level gauge automatic check device and method |
| CN111207812A (en) * | 2020-01-16 | 2020-05-29 | 中广核工程有限公司 | Nuclear power plant water storage tank liquid level switch calibration device and method |
| CN111599502A (en) * | 2020-04-14 | 2020-08-28 | 中国核电工程有限公司 | Automatic water filling and calibrating device for liquid level switch |
| CN112717474A (en) * | 2020-12-17 | 2021-04-30 | 浙江工业大学 | Continuous epoxy soybean oil water separating device and process |
| CN113686408A (en) * | 2021-07-16 | 2021-11-23 | 中广核核电运营有限公司 | Nuclear power unit auxiliary water supply tank switch constant value verification device without climbing operation |
| CN117168585A (en) * | 2023-11-03 | 2023-12-05 | 福建福清核电有限公司 | Online verification device and method for liquid level switch of auxiliary water supply tank |
-
2015
- 2015-08-14 CN CN201520616169.XU patent/CN204924394U/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110017885A (en) * | 2019-04-24 | 2019-07-16 | 中国长江电力股份有限公司 | A kind of roof-mounted magnetic double level gauge automatic check device and method |
| CN111207812A (en) * | 2020-01-16 | 2020-05-29 | 中广核工程有限公司 | Nuclear power plant water storage tank liquid level switch calibration device and method |
| CN111207812B (en) * | 2020-01-16 | 2021-10-15 | 中广核工程有限公司 | Nuclear power plant water storage tank liquid level switch calibration device and method |
| CN111599502A (en) * | 2020-04-14 | 2020-08-28 | 中国核电工程有限公司 | Automatic water filling and calibrating device for liquid level switch |
| CN111599502B (en) * | 2020-04-14 | 2023-01-17 | 中国核电工程有限公司 | Automatic water filling and calibrating device for liquid level switch |
| CN112717474A (en) * | 2020-12-17 | 2021-04-30 | 浙江工业大学 | Continuous epoxy soybean oil water separating device and process |
| CN113686408A (en) * | 2021-07-16 | 2021-11-23 | 中广核核电运营有限公司 | Nuclear power unit auxiliary water supply tank switch constant value verification device without climbing operation |
| CN117168585A (en) * | 2023-11-03 | 2023-12-05 | 福建福清核电有限公司 | Online verification device and method for liquid level switch of auxiliary water supply tank |
| CN117168585B (en) * | 2023-11-03 | 2024-02-13 | 福建福清核电有限公司 | Online verification device and method for liquid level switch of auxiliary water supply tank |
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