CN219179338U - High-pressure tracer injection device for measuring steam humidity at outlet of steam generator of nuclear power plant - Google Patents
High-pressure tracer injection device for measuring steam humidity at outlet of steam generator of nuclear power plant Download PDFInfo
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- CN219179338U CN219179338U CN202222898197.8U CN202222898197U CN219179338U CN 219179338 U CN219179338 U CN 219179338U CN 202222898197 U CN202222898197 U CN 202222898197U CN 219179338 U CN219179338 U CN 219179338U
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- valve
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Abstract
The utility model belongs to the field of power plant chemistry, and particularly relates to a high-pressure tracer injection device for measuring the outlet steam humidity of a steam generator of a nuclear power plant. The high-pressure tracer solution tank is connected with a solution tank outlet valve, the solution tank outlet valve is connected with a high-pressure injection pump, the high-pressure injection pump is connected with a retrograde valve, the retrograde valve is connected with a manual isolation valve, the manual isolation valve is connected with a main water supply pipeline, a pressure gauge is connected between the high-pressure injection pump and a pipeline connected with the retrograde valve, and the tracer solution tank is connected with a safety valve. The utility model has the beneficial effects that: through on-site use verification, the device is suitable for tracer injection for steam humidity measurement at the outlet of the steam generator, and has high injection efficiency and high safety, thereby achieving the expected effect.
Description
Technical Field
The utility model belongs to the field of power plant chemistry, and particularly relates to a high-pressure tracer injection device for measuring the outlet steam humidity of a steam generator of a nuclear power plant.
Background
In the pressurized water reactor nuclear power unit debugging stage, under the condition of full-power stable operation, a steam humidity measurement test of an outlet Steam Generator (SG) is required, a tracer (cesium) is injected into a main water supply pipeline to enter the steam generator along with main water supply, and the humidity of the SG outlet steam is determined by measuring the concentration of the tracer carried out by the SG outlet steam and a hydrophobic liquid phase after the SG outlet steam flows through a steam-water separation device.
The high-pressure device is needed to inject the tracer, and the tracer high-pressure injection device is not arranged in the aspect of related system design because the test is only carried out once in the unit debugging stage.
Disclosure of Invention
The utility model aims to provide a high-pressure injection device for measuring the tracer for the steam humidity at the outlet of a steam generator of a nuclear power plant, which can add the tracer for SG, thereby achieving the purpose of measuring the steam humidity at the outlet of SG.
The technical scheme of the utility model is as follows: the utility model provides a nuclear power plant steam generator export steam humidity measurement tracer high pressure injection device, includes the tracer solution case, the tracer solution case connect solution case outlet valve, solution case outlet valve connects high pressure injection pump, the reverse valve is connected to the high pressure injection pump, the manual isolation valve is connected to the reverse valve, the main water supply pipeline is connected to the manual isolation valve, connect the manometer between the pipeline of high pressure injection pump and connection reverse valve, the relief valve is connected to the tracer solution case.
The bottom of the tracer solution tank is connected with a solution tank outlet valve.
The bottom of the tracer solution tank is connected with the solution tank outlet valve through a pipeline.
The upper part of the tracer solution tank is connected with a safety valve.
The upper part of the tracer solution tank is connected with a safety valve through a pipeline.
The safety valve is connected between the high-pressure injection pump and a pipeline connected with the reversing valve through a pipeline.
The safety valve is positioned at the upstream of the pressure gauge.
The utility model has the beneficial effects that: through on-site use verification, the device is suitable for tracer injection for steam humidity measurement at the outlet of the steam generator, and has high injection efficiency and high safety, thereby achieving the expected effect.
Drawings
Fig. 1 is a schematic diagram of a high-pressure injection device for a tracer for measuring the humidity of steam at the outlet of a steam generator of a nuclear power plant.
In the figure: the device comprises a tracer solution tank 1, a solution tank outlet valve 2, a high-pressure injection pump 3, a safety valve 4, a pressure gauge 5, a retrograde valve 6, a manual isolation valve 7 and a main water supply pipeline 8.
Detailed Description
The utility model will be described in further detail with reference to the accompanying drawings and specific examples.
As shown in fig. 1, the high-pressure tracer injection device for measuring the steam humidity at the outlet of a steam generator of a nuclear power plant comprises a tracer solution tank 1, wherein the bottom of the tracer solution tank 1 is connected with a solution tank outlet valve 2 through a pipeline, the solution tank outlet valve 2 is connected with a high-pressure injection pump 3 through a pipeline, the high-pressure injection pump 3 is connected with a retrograde valve 6 through a pipeline, the retrograde valve 6 is connected with a manual isolation valve 7 through a pipeline, the manual isolation valve 7 is connected with a main water supply pipeline 8 through a pipeline, a pressure gauge 5 is connected between the high-pressure injection pump 3 and the pipeline connected with the retrograde valve 6, the upper part of the tracer solution tank 1 is connected with a safety valve 4 through a pipeline, the safety valve 4 is connected between the high-pressure injection pump 3 and the pipeline connected with the retrograde valve 6 through a pipeline, and the safety valve 4 is positioned at the upstream of the pressure gauge 5.
The working process of the utility model is as follows:
the outlet at the bottom of the tracer solution tank is connected with the outlet valve of the solution tank by a welding mode by using a stainless steel pipe, the outlet valve of the solution tank is connected with a high-pressure injection pump by using a welding mode by using a stainless steel pipe, a safety valve and a pressure gauge are arranged on the outlet pipe of the high-pressure injection pump, the outlet pipe of the safety valve returns to the tracer solution tank, a check valve and a manual isolation valve are sequentially arranged on a pipeline downstream of the pressure gauge, and the outlet pipe of the manual isolation valve is connected with a reserved interface of a main water supply pipeline by using a welding mode.
And pouring the prepared tracer into a tracer solution tank during adding, opening an outlet valve of the solution tank, starting after the stroke of the high-pressure injection pump is regulated to be the lowest, opening a manual isolation valve after the pressure value displayed by the pressure gauge is greater than the secondary side pressure of the SG, gradually regulating the stroke of the high-pressure injection pump, and injecting the tracer into the SG.
Claims (7)
1. The utility model provides a nuclear power plant steam generator export steam humidity measures tracer high pressure injection apparatus which characterized in that: the high-pressure tracer solution tank is connected with a solution tank outlet valve, the solution tank outlet valve is connected with a high-pressure injection pump, the high-pressure injection pump is connected with a retrograde valve, the retrograde valve is connected with a manual isolation valve, the manual isolation valve is connected with a main water supply pipeline, a pressure gauge is connected between the high-pressure injection pump and a pipeline connected with the retrograde valve, and the tracer solution tank is connected with a safety valve.
2. The nuclear power plant steam generator outlet steam humidity measurement tracer high pressure injection apparatus of claim 1, wherein: the bottom of the tracer solution tank is connected with a solution tank outlet valve.
3. The nuclear power plant steam generator outlet steam humidity measurement tracer high pressure injection apparatus of claim 2, wherein: the bottom of the tracer solution tank is connected with the solution tank outlet valve through a pipeline.
4. The nuclear power plant steam generator outlet steam humidity measurement tracer high pressure injection apparatus of claim 1, wherein: the upper part of the tracer solution tank is connected with a safety valve.
5. The nuclear power plant steam generator outlet steam humidity measurement tracer high pressure injection apparatus of claim 4 wherein: the upper part of the tracer solution tank is connected with a safety valve through a pipeline.
6. The nuclear power plant steam generator outlet steam humidity measurement tracer high pressure injection apparatus of claim 1, wherein: the safety valve is connected between the high-pressure injection pump and a pipeline connected with the reversing valve through a pipeline.
7. The nuclear power plant steam generator outlet steam humidity measurement tracer high pressure injection apparatus of claim 1, wherein: the safety valve is positioned at the upstream of the pressure gauge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222898197.8U CN219179338U (en) | 2022-11-01 | 2022-11-01 | High-pressure tracer injection device for measuring steam humidity at outlet of steam generator of nuclear power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222898197.8U CN219179338U (en) | 2022-11-01 | 2022-11-01 | High-pressure tracer injection device for measuring steam humidity at outlet of steam generator of nuclear power plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219179338U true CN219179338U (en) | 2023-06-13 |
Family
ID=86671720
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222898197.8U Active CN219179338U (en) | 2022-11-01 | 2022-11-01 | High-pressure tracer injection device for measuring steam humidity at outlet of steam generator of nuclear power plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219179338U (en) |
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2022
- 2022-11-01 CN CN202222898197.8U patent/CN219179338U/en active Active
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