CN216349409U - Nuclear power plant turbine generator hydrogen leakage detection system - Google Patents
Nuclear power plant turbine generator hydrogen leakage detection system Download PDFInfo
- Publication number
- CN216349409U CN216349409U CN202122550602.2U CN202122550602U CN216349409U CN 216349409 U CN216349409 U CN 216349409U CN 202122550602 U CN202122550602 U CN 202122550602U CN 216349409 U CN216349409 U CN 216349409U
- Authority
- CN
- China
- Prior art keywords
- hydrogen
- sampling gas
- main pipeline
- gas inlet
- transmitter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model relates to the technical field of hydrogen leakage detection, and particularly discloses a nuclear power plant steam turbine generator hydrogen leakage detection system. The system comprises a signal control unit, a hydrogen transmitter, a flowmeter and a main pipeline, wherein one end of the main pipeline is provided with a sampling gas inlet, the other end of the main pipeline is provided with a sampling gas outlet, the flowmeter and the hydrogen transmitter are sequentially arranged between the sampling gas inlet and the sampling gas outlet, the hydrogen transmitter is connected with the signal control unit, the hydrogen transmitter detects the hydrogen concentration in the main pipeline and sends a detection result to the signal control unit. The system greatly facilitates the judgment of site workers on the hydrogen leakage point of the turbonator, and can accurately find the leakage position, so that the workers can take emergency measures in time, accidents are prevented, and the production safety is ensured.
Description
Technical Field
The utility model belongs to the technical field of hydrogen leakage detection, and particularly relates to a nuclear power plant steam turbine generator hydrogen leakage detection system.
Background
Hydrogen leaks to be a potential safety hazard that turbo generator set exists, and hydrogen is colorless tasteless, and the staff can't directly judge that turbo generator set where exists leaks hydrogen, and its size that leaks the hydrogen volume directly influences the safe operation of unit. As one of the important indexes of the operation of the steam turbine generator unit, the detection and prevention of the hydrogen leakage amount of the generator unit are key problems of the safe production of electric power.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a nuclear power plant steam turbine generator hydrogen leakage detection system, which avoids the influence on the safe operation of a steam turbine generator unit due to the hydrogen leakage of the steam turbine generator unit, eliminates potential safety hazards and ensures the safe and stable operation of the steam turbine generator unit.
The technical scheme of the utility model is as follows: the utility model provides a nuclear power plant's turbo generator leaks hydrogen detecting system, this system includes signal control unit, hydrogen changer, flowmeter and main line, main line one end is equipped with the sampling gas import, and the other end is equipped with the sampling gas export, be equipped with flowmeter and hydrogen changer between sampling gas import and the sampling gas export in proper order, the hydrogen changer links to each other with signal control unit, the hydrogen changer detects hydrogen concentration in the main line to with testing result send to signal control unit.
The signal control unit is connected with a display controller to display the detection readings.
The main pipeline comprises a first main pipeline and a second main pipeline, the flowmeter comprises a first flowmeter and a second flowmeter, the hydrogen transmitter comprises a first hydrogen transmitter and a second hydrogen transmitter, one end of the first main pipeline is provided with a first sampling gas inlet, the other end of the first main pipeline is provided with a sampling gas outlet, the first flowmeter and the first hydrogen transmitter are sequentially arranged between the first sampling gas inlet and the sampling gas outlet, and the first hydrogen transmitter is connected with the signal control unit; and one end of the second main pipeline is provided with a second sampling gas inlet, the other end of the second main pipeline is provided with a sampling gas outlet, a second flowmeter and a second hydrogen transmitter are sequentially arranged between the second sampling gas inlet and the sampling gas outlet, and the second hydrogen transmitter is connected with the signal control unit.
A filter is arranged between the first sampling gas inlet and the first flowmeter; and a filter is arranged between the second sampling gas inlet and the second flowmeter.
The first sampling gas inlet and the calibration gas inlet are connected in parallel, and the junction is connected to the first main pipeline through a two-position three-way valve, so that calibration gas can be introduced into the first main pipeline; the second sampling gas inlet is connected with the calibration gas inlet in parallel, and the junction is connected into the second main pipeline through the two-position three-way valve, so that the calibration gas can be introduced into the second main pipeline.
The first hydrogen transmitter is connected with a two-position four-way valve in parallel, so that gas can reach a sampling gas outlet through or without the first hydrogen transmitter; and the second hydrogen transmitter is connected with a two-position four-way valve in parallel, so that gas can reach the sampling gas outlet through or without the second hydrogen transmitter.
The front ends of the first sampling gas inlet and the second sampling gas inlet are provided with oil gas pretreatment devices, so that oil in the turbonator is prevented from entering the detection system.
And the signal control unit is connected with the alarm module to realize the alarm function of the super-threshold value.
The first sampling gas inlet and the second sampling gas inlet are arranged on an oil return pipeline of the generator, and the first hydrogen transmitter is provided with a 0-10% VOL range probe; the second sampling gas inlet is arranged on a pipeline of the smoke exhaust fan, and the second hydrogen transmitter is provided with a 0-20% VOL range probe.
The utility model has the following remarkable effects: according to the nuclear power plant turbogenerator hydrogen leakage detection system, the hydrogen leakage monitoring sensors are respectively arranged in the generator oil return pipeline and the smoke exhaust fan pipeline through the two detection systems, and the hydrogen gas concentration of the generator oil return pipeline and the smoke exhaust fan pipeline is detected.
Drawings
FIG. 1 is a schematic structural diagram of a system for detecting hydrogen leakage of a steam turbine generator of a nuclear power plant according to the present invention;
in the figure: 1. a first hydrogen transmitter; 2. a first flow meter; 3. a display controller; 4. a second hydrogen transducer; 5. a second flow meter.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.
As shown in fig. 1, a nuclear power plant steam turbine generator hydrogen leakage detection system comprises a signal control unit, a hydrogen transmitter, a flow meter, a display controller 3 and a main pipeline, wherein the main pipeline comprises a first main pipeline and a second main pipeline, one end of the first main pipeline is provided with a first sampling gas inlet, and the other end of the first main pipeline is connected to a sampling gas outlet;
a first flowmeter 2 and a first hydrogen transmitter 1 are sequentially connected between a first sampling gas inlet and a sampling gas outlet of the first main pipeline, and a filter is arranged between the first sampling gas inlet and the first flowmeter 2 to reduce gas impurities entering the first main pipeline; the first sampling gas inlet and the calibration gas inlet are connected in parallel, and the junction is connected to a first main pipeline through a two-position three-way valve, so that calibration gas can be introduced into the first main pipeline to calibrate the first flowmeter 2 and the first hydrogen transmitter 1; the first hydrogen transmitter 1 is connected in parallel with a two-position four-way valve, so that the sampling gas can selectively flow into the first hydrogen transmitter 1 in the first main pipeline for detection;
a second flowmeter 5 and a second hydrogen transmitter 4 are sequentially connected between a second sampling gas inlet and a sampling gas outlet of the second main pipeline, and a filter is arranged between the second sampling gas inlet and the second flowmeter 5 to reduce gas impurities entering the second main pipeline; the second sampling gas inlet and the calibration gas inlet are connected in parallel, and the junction is connected to a second main pipeline through a two-position three-way valve, so that calibration gas can be introduced into the second main pipeline to calibrate the second flowmeter 5 and the second hydrogen transmitter 4; the second hydrogen transmitter 4 is connected in parallel with a two-position four-way valve, so that the sampled gas can selectively flow into the second hydrogen transmitter 4 in the second main pipeline for detection;
the first hydrogen transmitter 1 and the second hydrogen transmitter 4 are respectively connected with a signal control unit so as to send detection results to the signal control unit for analysis; the signal control unit is connected with the display controller 3 to display the detection result; the signal control unit is also connected with an alarm module, and when the detection result exceeds an alarm threshold value, the alarm module starts alarming; a valve is arranged at the sampling gas outlet to control the sampling gas in the main pipeline to be discharged;
the first sampling gas inlet is arranged on an oil return pipeline of the generator, and the first hydrogen transmitter 1 is provided with a 0-10% VOL range probe; the second sampling gas inlet is arranged on a pipeline of the smoke exhaust fan, and the second hydrogen transmitter 4 is provided with a 0-20% VOL range probe.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations can be made by the worker in the light of the above teachings without departing from the spirit of the utility model. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (9)
1. The utility model provides a nuclear power plant turbo generator hydrogen leakage detecting system which characterized in that: the system comprises a signal control unit, a hydrogen transmitter, a flowmeter and a main pipeline, wherein one end of the main pipeline is provided with a sampling gas inlet, the other end of the main pipeline is provided with a sampling gas outlet, the flowmeter and the hydrogen transmitter are sequentially arranged between the sampling gas inlet and the sampling gas outlet, the hydrogen transmitter is connected with the signal control unit, the hydrogen transmitter detects the hydrogen concentration in the main pipeline and sends a detection result to the signal control unit.
2. The nuclear power plant steam turbine generator hydrogen leakage detection system of claim 1, characterized in that: the signal control unit is connected with a display controller (3) to display the detection readings.
3. The nuclear power plant steam turbine generator hydrogen leakage detection system of claim 1, characterized in that: the main pipeline comprises a first main pipeline and a second main pipeline, the flowmeter comprises a first flowmeter (2) and a second flowmeter (5), the hydrogen transmitter comprises a first hydrogen transmitter (1) and a second hydrogen transmitter (4), one end of the first main pipeline is provided with a first sampling gas inlet, the other end of the first main pipeline is provided with a sampling gas outlet, the first flowmeter (2) and the first hydrogen transmitter (1) are sequentially arranged between the first sampling gas inlet and the sampling gas outlet, and the first hydrogen transmitter (1) is connected with a signal control unit; and one end of the second main pipeline is provided with a second sampling gas inlet, the other end of the second main pipeline is provided with a sampling gas outlet, a second flowmeter (5) and a second hydrogen transmitter (4) are sequentially arranged between the second sampling gas inlet and the sampling gas outlet, and the second hydrogen transmitter (4) is connected with the signal control unit.
4. The nuclear power plant steam turbine generator hydrogen leakage detection system of claim 3, characterized in that: a filter is arranged between the first sampling gas inlet and the first flowmeter (2); a filter is arranged between the second sampling gas inlet and the second flowmeter (5).
5. The nuclear power plant steam turbine generator hydrogen leakage detection system of claim 3, characterized in that: the first sampling gas inlet and the calibration gas inlet are connected in parallel, and the junction is connected to the first main pipeline through a two-position three-way valve, so that calibration gas can be introduced into the first main pipeline; the second sampling gas inlet is connected with the calibration gas inlet in parallel, and the junction is connected into the second main pipeline through the two-position three-way valve, so that the calibration gas can be introduced into the second main pipeline.
6. The nuclear power plant steam turbine generator hydrogen leakage detection system of claim 3, characterized in that: the first hydrogen transmitter (1) is connected with a two-position four-way valve in parallel, so that gas can reach a sampling gas outlet through or without the first hydrogen transmitter (1); and the second hydrogen transmitter (4) is connected with a two-position four-way valve in parallel, so that gas can reach a sampling gas outlet through or without the second hydrogen transmitter (4).
7. The nuclear power plant steam turbine generator hydrogen leakage detection system of claim 3, characterized in that: the front ends of the first sampling gas inlet and the second sampling gas inlet are provided with oil gas pretreatment devices, so that oil in the turbonator is prevented from entering the detection system.
8. The nuclear power plant steam turbine generator hydrogen leakage detection system of claim 1, characterized in that: and the signal control unit is connected with the alarm module to realize the alarm function of the super-threshold value.
9. The nuclear power plant steam turbine generator hydrogen leakage detection system of claim 3, characterized in that: the first sampling gas inlet and the second sampling gas inlet are arranged on an oil return pipeline of the generator, and the first hydrogen transmitter (1) is provided with a 0-10% VOL range probe; the second sampling gas inlet is arranged on a pipeline of the smoke exhaust fan, and the second hydrogen transmitter (4) is provided with a 0-20% VOL range probe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122550602.2U CN216349409U (en) | 2021-10-22 | 2021-10-22 | Nuclear power plant turbine generator hydrogen leakage detection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122550602.2U CN216349409U (en) | 2021-10-22 | 2021-10-22 | Nuclear power plant turbine generator hydrogen leakage detection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216349409U true CN216349409U (en) | 2022-04-19 |
Family
ID=81181256
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122550602.2U Active CN216349409U (en) | 2021-10-22 | 2021-10-22 | Nuclear power plant turbine generator hydrogen leakage detection system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216349409U (en) |
-
2021
- 2021-10-22 CN CN202122550602.2U patent/CN216349409U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101943691B (en) | Method for checking SF6 gas leakage monitoring and alarming apparatuses | |
| CN103196518B (en) | Transformer and respirator online monitor and operating method thereof | |
| CN103032626B (en) | System and method for diagnosing fault of adjusting valve | |
| CN206020318U (en) | A kind of gas dew point analytical equipment | |
| CN201662568U (en) | Carbon monoxide detection system of novel coal mill | |
| CN216714459U (en) | Automatic control monitoring device for orifice plate flowmeter for coal mine gas extraction pipeline | |
| CN203606339U (en) | Device for detecting sulfur hexafluoride leakage alarming instrument | |
| CN216349409U (en) | Nuclear power plant turbine generator hydrogen leakage detection system | |
| CN202693564U (en) | Comprehensive sulfur hexafluoride gas detection device | |
| CN101788412A (en) | Device for monitoring flue gas flux of desulfurization tower on line | |
| CN102322899B (en) | Photoelectric type gas microflow bubble flowmeter | |
| CN112798758A (en) | Intelligent checking and maintaining system and method for online chemical instrument | |
| CN202304962U (en) | Air tunnel type speed-area-method air flow calibration device | |
| CN110031419A (en) | A kind of automatic calibrator of non-dispersive infrared methane sensor | |
| CN203587143U (en) | Device for monitoring stator waterway hydrogen leakage | |
| CN109915734A (en) | Monitoring pipeline safety instrument and method for early warning | |
| CN202916394U (en) | High-precision on-line monitoring apparatus for oil gas of transformer | |
| CN204327074U (en) | Shale gas ground open flow safety monitoring assembly | |
| CN203241113U (en) | Transformer respirator online monitoring instrument | |
| CN111121927B (en) | Water inlet detection method of electronic gas meter | |
| CN103306967A (en) | Measuring system for 300 MW reactor coolant pump | |
| CN202852430U (en) | Oil and gas pipeline leak detection system based on flow equilibrium and low frequency wave technology | |
| CN205785652U (en) | A kind of device of detected air pressure | |
| CN206440360U (en) | A kind of Natural gas standard turbine flowmeter overspeed protection system | |
| CN202348354U (en) | Intelligent thermal expansion monitoring instrument |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |