CN216846473U - Float level meter calibration device for nuclear power station - Google Patents
Float level meter calibration device for nuclear power station Download PDFInfo
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- CN216846473U CN216846473U CN202122625702.7U CN202122625702U CN216846473U CN 216846473 U CN216846473 U CN 216846473U CN 202122625702 U CN202122625702 U CN 202122625702U CN 216846473 U CN216846473 U CN 216846473U
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Abstract
The utility model relates to a nuclear power station is with float level gauge calibration equipment, a check-up is carried out the float level gauge for the nuclear power station, the calibration equipment includes the water pump, fill the cask, the governing valve, transparent liquid level display pipe is on a parallel with the flotation pontoon setting of nuclear power station with float level gauge, and transparent liquid level display pipe and flotation pontoon are linked together with two interfaces of cross valve respectively, one of them of other two interfaces of cross valve is linked together through pipeline and governing valve, another run-on water drainage pipeline, the governing valve still passes through the tube coupling water pump and fills the cask, the water pump is used for filling the water that fills the cask simultaneously to flotation pontoon and transparent liquid level display intraductal, transparent liquid level display pipe shows the interior real-time liquid level of flotation pontoon, check-up the float level gauge. The utility model discloses the device has and avoids the calibration equipment to be contaminated, reduces radioactive waste and produces, improves the check-up rate that fills water, increases and fills water liquid level control precision, reduce staff's operating length, reduce advantages such as personnel's illuminated dose.
Description
Technical Field
The utility model relates to a level gauge calibration equipment especially relates to a float level gauge calibration equipment for nuclear power station.
Background
The nuclear power field radiation control area is internally provided with 10 float liquid level meters, the float liquid level meters need to be filled with water for checking during inspection and maintenance of the liquid level meters, and the liquid level meters are checked in the mode that a manual water pumping pump is additionally provided with a transparent pipe to be communicated with the float liquid level meters at present. Because of the medium is the radioactive medium in the level gauge flotation pontoon, can appear the radioactive medium backward flow when filling the water check-up to the level gauge, lead to the check-up device whole pollution, the increase of radioactive waste, the moisturizing pump receive difficult circumstances such as decontamination after polluting, and artifical water check-up that fills is consuming time longer, and the water injection liquid level control precision is poor, and required manpower is more, has increased personnel irradiation dose.
SUMMERY OF THE UTILITY MODEL
To the actual problem that nuclear power scene float level gauge check-up met, the utility model provides a float level gauge calibration equipment for nuclear power station.
The utility model provides a nuclear power station is with float level gauge calibration equipment but wide application in nuclear power scene radioactive medium float level gauge check-up work of filling water.
The purpose of the utility model can be realized through the following technical scheme:
the utility model provides a float level gauge calibration equipment for nuclear power station for check-up the float level gauge for nuclear power station, the calibration equipment includes the water pump, fills the cask, governing valve, transparent liquid level display pipe is on a parallel with the flotation pontoon setting of float level gauge for nuclear power station, just transparent liquid level display pipe and flotation pontoon are linked together with two interfaces of cross valve respectively, one of them is linked together through pipeline and governing valve in the other two interfaces of cross valve, another connecting drainage pipeline, the governing valve still passes through the tube coupling water pump and fills the cask, the water pump is used for filling the water of filling the cask simultaneously to flotation pontoon and transparent liquid level display intraductal, the real-time liquid level in transparent liquid level display pipe shows the flotation pontoon, carries out the check-up to the float level gauge.
The utility model discloses in, flotation pontoon and transparent liquid level display pipe constitute the connectivity structure, utilize the linker principle, and the outer transparent liquid level display pipe of flotation pontoon shows that the flotation pontoon is for taking the scale stereoplasm hyaline tube.
The utility model discloses an in one embodiment, still be provided with the check valve on the pipeline between one of them interface of cross valve and the governing valve, the check valve makes the water in the pipeline follow governing valve flow direction cross valve, and prevents the water in the pipeline from the cross valve flow direction governing valve. A check valve is arranged at the downstream of the regulating valve to prevent radioactive wastewater from flowing back to the water pump and the water filling barrel, so that the equipment is prevented from being polluted by the radioactive wastewater.
In an embodiment of the present invention, the water pump is connected to a power supply, and the power supply provides energy for the operation of the water pump.
In an embodiment of the present invention, a switch is disposed on the connection line between the water pump and the power supply.
In one embodiment of the present invention, the power source is a set of 12V rechargeable lithium batteries.
In an embodiment of the present invention, the water pump is a 12V electric intelligent diaphragm pump, and the pump is automatically stopped when the valve is closed.
The utility model discloses an in the embodiment, the governing valve is manual flow control valve for adjust real-time flow, control water filling speed improves the check-up precision.
In one embodiment of the present invention, a drain bucket for receiving liquid is disposed below the drain pipeline. The drainage barrel is used for collecting radioactive wastewater in the buoy, and pollution to other equipment is reduced.
The utility model discloses an in the embodiment, still be provided with the stop valve on the pipeline between cross valve and the flotation pontoon. The stop valve is a ball valve.
In an embodiment of the present invention, a drain valve is disposed on the drain line. The drain valve is a ball valve.
In one embodiment of the present invention, the water charging bucket and the water discharging bucket are 30L stainless steel buckets.
The utility model discloses an among the embodiment, for inserting connected mode soon between cross valve and each pipeline, can increase substantially the installation effectiveness, it is long when effectively reducing personnel's installation, reduce personnel and receive the irradiation dose.
Compared with the prior art, the utility model discloses constitute connectivity structure with flotation pontoon and transparent liquid level display pipe, utilize the linker principle, the outer transparent liquid level display pipe of flotation pontoon shows the real-time liquid level in the flotation pontoon, realizes filling the check-up of water fast to the float level gauge. The calibration device has the advantages of avoiding the calibration device from being polluted, reducing the generation of radioactive wastes, improving the water filling calibration rate, increasing the control precision of the water filling liquid level, reducing the working time of personnel, reducing the irradiated dosage of the personnel and the like.
Drawings
Fig. 1 is the utility model discloses in embodiment 1 the float level gauge calibration equipment for nuclear power plant's structural schematic diagram.
1. A power source; 2. a water pump; 3. the device comprises a water filling barrel, 4 a water drainage barrel, 5 a check valve, 6 a regulating valve, 7 a transparent liquid level display tube, 8 a buoy, 9 a four-way valve, 10 a stop valve, 11 and a drain valve.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
Examples
Referring to fig. 1, the present embodiment provides a float level gauge verification apparatus for a nuclear power plant, for verifying a float level gauge for a nuclear power plant, the calibration device comprises a water pump 2, a water filling barrel 3, a regulating valve 6 and a transparent liquid level display pipe 7, wherein the transparent liquid level display pipe 7 is arranged in parallel with a float 8 of a float liquid level meter for the nuclear power station, and the transparent liquid level display tube 7 and the float 8 are respectively communicated with two interfaces of a four-way valve 9, one of the other two interfaces of the four-way valve 9 is communicated with the regulating valve 6 through a pipeline, the other one is connected with a drainage pipeline, the regulating valve 6 is also connected with the water pump 2 and the water filling barrel 3 through pipelines, the water pump 2 is used for filling the water in the water filling barrel 3 into the float 8 and the transparent liquid level display pipe 7 simultaneously, the transparent liquid level display tube 7 displays the real-time liquid level in the float 8, and the float liquid level meter is verified.
In the embodiment, the float 8 and the transparent liquid level display pipe 7 form a communication structure, and the transparent liquid level display pipe 7 outside the float displays the real-time liquid level in the float 8 by utilizing the principle of a communicating vessel, so that the quick water filling verification of the float liquid level meter is realized.
In this embodiment, the transparent liquid level display tube 7 is a hard transparent tube with scales.
In this embodiment, a check valve 5 is further disposed on a pipeline between one of the joints of the four-way valve 9 and the regulating valve 6, and the check valve 5 allows water in the pipeline to flow from the regulating valve 6 to the four-way valve 9, and prevents the water in the pipeline from flowing from the four-way valve 9 to the regulating valve 6. A check valve 5 is arranged at the downstream of the regulating valve 6 to prevent radioactive wastewater from flowing back to the water pump 2 and the water filling barrel 3, so that the equipment is prevented from being polluted by the radioactive wastewater.
In this embodiment, the water pump 2 is connected with the power supply 1, and the power supply 1 provides energy for the operation of the water pump 2. And a switch is arranged on a connecting line between the water pump 2 and the power supply 1. The power supply 1 is a set of 12V rechargeable lithium batteries. The water pump 2 is a 12V electric intelligent diaphragm pump, and the pump is automatically stopped when the valve is closed.
In this embodiment, the regulating valve 6 is a manual flow regulating valve, and is used for regulating real-time flow, controlling water filling speed, and improving calibration accuracy.
In this embodiment, a drain barrel 4 for receiving liquid is disposed below the drain line. The drainage bucket 4 is used for collecting radioactive wastewater in the buoy and reducing pollution to other equipment.
In this embodiment, a stop valve 10 is further disposed on a pipeline between the four-way valve 9 and the float 8. The stop valve 10 is a ball valve. A drain valve 11 is arranged on the drain pipeline. The drain valve 11 is a ball valve.
In this embodiment, the water charging barrel 3 and the water discharging barrel 4 are 30L stainless steel barrels.
In this embodiment, the four-way valve 9 and each pipeline are connected in a quick-plug manner, so that the installation efficiency can be greatly improved, the installation time of personnel is effectively reduced, and the irradiation dose of the personnel is reduced.
When the device is used, the transparent liquid level display tube 7 is fixed on the float bowl of the liquid level meter by a binding tape, and the scale zero corresponds to the liquid level zero point of the tank body; the four-way valve 9 is communicated with various pipelines; confirming that the device cut-off valve 10 is open, the drain valve 11 is closed, and the regulating valve 6 is closed; adding clear water into the water filling barrel 3, opening the water pump 2, slowly opening the regulating valve 6, filling water into the float 8 of the float level meter tank body, simultaneously, observing the transparent liquid level display pipe 7 by the accessible to confirm the real liquid level of the filled water, performing 5-point water filling calibration on the liquid level meter, closing the small regulating valve 6 when the liquid level is close to the scale to be calibrated, and increasing the precision of the control water filling liquid level. After the upper stroke calibration of the liquid level meter is finished, the drain valve 11 is slowly opened, and the lower stroke calibration of the liquid level meter is carried out.
The embodiments described above are intended to facilitate the understanding and use of the invention by those skilled in the art. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above embodiments, and those skilled in the art should make improvements and modifications within the scope of the present invention according to the disclosure of the present invention.
Claims (10)
1. The utility model provides a nuclear power station is with float level gauge calibration equipment for check-up nuclear power station is with float level gauge, a serial communication port, calibration equipment includes water pump (2), fills bucket (3), governing valve (6), transparent liquid level display tube (7) are on a parallel with float bowl (8) setting of nuclear power station for float level gauge, and transparent liquid level display tube (7) and float bowl (8) are linked together with two interfaces of cross valve (9) respectively, one of them is linked together through pipeline and governing valve (6) in the other two interfaces of cross valve (9), another connects the drain line, governing valve (6) still pass through tube coupling water pump (2) and fill bucket (3), water pump (2) are used for filling the water of filling bucket (3) to float bowl (8) and transparent liquid level display tube (7) simultaneously, the transparent liquid level display tube (7) displays the real-time liquid level in the float bowl (8) and verifies the float liquid level meter.
2. The nuclear power plant float level gauge calibration device according to claim 1, wherein the transparent liquid level display tube (7) is a hard transparent tube with scales.
3. The float level gauge calibrating device for nuclear power plant according to claim 1, characterized in that a check valve (5) is further provided on the pipeline between one of the ports of the four-way valve (9) and the regulating valve (6), wherein the check valve (5) allows water in the pipeline to flow from the regulating valve (6) to the four-way valve (9) and prevents water in the pipeline from flowing from the four-way valve (9) to the regulating valve (6).
4. The float level gauge calibration device for the nuclear power station as recited in claim 1, characterized in that the water pump (2) is connected with a power supply (1), and the power supply (1) provides energy for the operation of the water pump (2).
5. The nuclear power station float level gauge calibration device according to claim 4, characterized in that a switch is arranged on a connecting line between the water pump (2) and the power supply (1).
6. The float level gauge verification device for nuclear power plant according to claim 4, characterized in that the power source (1) is a set of 12V rechargeable lithium batteries.
7. The float level gauge calibration device for the nuclear power station as recited in claim 1, characterized in that the water pump (2) is a 12V electric intelligent diaphragm pump.
8. The float level gauge verification device for nuclear power plants according to claim 1, characterized in that a drainage bucket (4) for receiving liquid is arranged below the drainage line.
9. The float level gauge calibration device for the nuclear power plant as recited in claim 1, characterized in that a stop valve (10) is further arranged on a pipeline between the four-way valve (9) and the buoy (8).
10. The float level gauge verification device for nuclear power plants according to claim 1, characterized in that a drain valve (11) is provided on the drain line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122625702.7U CN216846473U (en) | 2021-10-29 | 2021-10-29 | Float level meter calibration device for nuclear power station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122625702.7U CN216846473U (en) | 2021-10-29 | 2021-10-29 | Float level meter calibration device for nuclear power station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216846473U true CN216846473U (en) | 2022-06-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122625702.7U Active CN216846473U (en) | 2021-10-29 | 2021-10-29 | Float level meter calibration device for nuclear power station |
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| Country | Link |
|---|---|
| CN (1) | CN216846473U (en) |
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2021
- 2021-10-29 CN CN202122625702.7U patent/CN216846473U/en active Active
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