CN210109074U - Portable oxygen concentration measuring device - Google Patents
Portable oxygen concentration measuring device Download PDFInfo
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- CN210109074U CN210109074U CN201920603451.2U CN201920603451U CN210109074U CN 210109074 U CN210109074 U CN 210109074U CN 201920603451 U CN201920603451 U CN 201920603451U CN 210109074 U CN210109074 U CN 210109074U
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Abstract
The utility model belongs to gas concentration measurement field, concretely relates to measuring device of oxygen concentration in relevant each container of a nuclear power plant's return circuit. The utility model provides a portable oxygen concentration measurement device, includes quick-operation joint, No. two quick-operation joints, No. three quick-operation joints, hydrogen flowmeter, oxygen flowmeter, portable oxygen meter and three-way valve. And a sampling pipeline of the gas container to be detected is connected with the first quick connector. The first quick connector is respectively connected with the hydrogen flowmeter and the oxygen flowmeter. The oxygen flow meter is connected with the first port of the three-way valve, and the second port of the three-way valve is connected with one port of the portable oxygen meter. The hydrogen flowmeter is connected with an external portable hydrogen meter through a third quick connector to measure the hydrogen concentration. The utility model discloses it is timely, convenient to detect, and the sample detection time is short, can be on-line measuring always, and the detection concentration range is wide, can not leak radioactive gas and cause personnel's internal irradiation.
Description
Technical Field
The utility model belongs to gas concentration measurement field, concretely relates to measuring device of oxygen concentration in relevant each container of a nuclear power plant's return circuit.
Background
At present, when a domestic nuclear power plant analyzes the concentration of oxygen (hydrogen) in each container related to a primary circuit, a gas chromatography method is generally used for sampling and analyzing, and the method has the following defects:
1. the preparation time is long: the gas chromatography needs to be preheated and baseline-moved after being started up every time, and the sample analysis can be carried out only after the baseline is stable, so that the time consumption is relatively long;
2. the analysis process is complicated: an analyst needs to use the injector to suck the sample and then analyze the sample, and if the sample is measured for multiple times, the sampling and the analysis need to be repeated;
3. personnel carry the risk of internal irradiation: because the gas in each container related to a primary circuit of the nuclear power plant is analyzed and has certain radioactivity, the risk of internal irradiation caused by mistaken suction of radioactive gas leakage personnel exists in the process of analyzing the sample.
Disclosure of Invention
The utility model aims at designing a simple and convenient portable oxygen (hydrogen) gas concentration measuring device.
In order to achieve the above purpose, the utility model adopts the technical proposal that:
a portable oxygen concentration measuring device comprises a first quick connector, a hydrogen flowmeter, an oxygen flowmeter and a portable oxygen meter. Wherein, the sampling pipeline of the gas container to be measured is connected with the first quick connector. The first quick connector is respectively connected with the hydrogen flowmeter and the oxygen flowmeter. The oxygen flowmeter is connected with the portable oxygen meter.
The portable oxygen concentration measuring device is also provided with a three-way valve for adjusting the flow direction of the sample.
The oxygen flow meter is connected with the first port of the three-way valve, and the second port of the three-way valve is connected with one port of the portable oxygen meter.
The portable oxygen concentration measuring device is also provided with a second quick connector.
The other port of the portable oxygen meter is connected with a second quick connector. And a third port of the three-way valve is connected with a second quick joint.
The portable oxygen concentration measuring device is also connected with a waste gas receiving tank of the nuclear power plant.
And a third port of the three-way valve is connected with the waste gas receiving tank of the nuclear power plant through a second quick connector. And discharging the gas after the measurement is finished into a waste gas receiving tank of the nuclear power plant through a second quick coupling.
The hydrogen flowmeter is used for regulating the flow when the portable hydrogen meter detects a sample. The oxygen flowmeter is used for regulating the flow when the portable oxygen meter detects a sample.
The portable oxygen concentration measuring device is also provided with a third quick connector.
The technical scheme of the utility model still can be used to measure hydrogen concentration. When hydrogen needs to be measured, the hydrogen flowmeter is connected with an external portable hydrogen meter through a third quick connector for measurement.
Preferably, the flow rate of the hydrogen flow meter is in the range of 0-100ml/min.
Preferably, the flow rate of the oxygen flow meter is in the range of 0-500ml/min.
The utility model discloses the beneficial effect who gains does:
1. the detection is timely and convenient: after the measuring device is connected with a sampling pipeline of a gas container to be measured, the portable instrument can be immediately measured after being started without waiting for preheating of the instrument and baseline walking;
2. the time for detecting the sample is short: the result can be obtained after about 30 seconds when the instrument detects a sample;
3. the whole sampling and measuring pipeline can be subjected to on-line detection all the time after being opened, and the detection result can be directly read on site when needed;
4. the whole sampling and analyzing process is sealed, and the radioactive gas is prevented from leaking to cause irradiation in personnel.
5. The detection range is wide, and the detection concentration of the hydrogen and oxygen gases can be accurately measured within the range of 0-100%.
Drawings
Fig. 1 is a schematic diagram of a portable oxygen concentration measuring device.
In the figure: 1 is a first quick connector; 2 is a hydrogen flowmeter; 3 is an oxygen flow meter; 4 is a portable oxygen meter; 5 is a second quick connector; 7 is a three-way valve; and 8 is a third quick connector.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
As shown in figure 1, the utility model provides a portable oxygen concentration measuring device, including quick-operation joint 1, hydrogen flowmeter 2, oxygen flowmeter 3, portable oxygen meter 4.
Wherein, the sampling pipeline of the gas container to be measured is connected with the first quick connector 1. The first quick connector 1 is respectively connected with a hydrogen flowmeter 2 and an oxygen flowmeter 3. The oxygen flowmeter 3 is connected with the portable oxygen meter 4.
The portable oxygen concentration measuring device is also provided with a three-way valve 7 for adjusting the flow direction of the sample.
The oxygen flowmeter 3 is connected with a first port of the three-way valve 7, and a second port of the three-way valve 7 is connected with a port of the portable oxygen meter 4.
The portable oxygen concentration measuring device is also provided with a second quick connector 5. The other port of the portable oxygen meter 4 is connected with a second quick connector 5. And a third port of the three-way valve 7 is connected with a second quick joint 5.
The portable oxygen concentration measuring device is also connected with a waste gas receiving tank of the nuclear power plant.
And a third port of the three-way valve 7 is connected with a waste gas receiving tank of the nuclear power plant through a second quick connector 5. And discharging the gas after the measurement is finished into a waste gas receiving tank of the nuclear power plant through a second quick coupling 5.
The hydrogen flowmeter 2 is used for regulating the flow when the portable hydrogen meter detects a sample. The oxygen flowmeter 3 is used for regulating the flow when the portable oxygen meter 4 detects a sample.
The portable oxygen concentration measuring device is also provided with a third quick connector 8.
The technical scheme of the utility model still can be used to measure hydrogen concentration.
When the hydrogen concentration needs to be measured, the hydrogen flowmeter 2 is connected with an external portable hydrogen meter through a third quick connector 8 for measurement.
Preferably, the flow rate of the hydrogen flow meter 2 ranges from 0 to 100ml/min.
Preferably, the flow rate of the oxygen flow meter 3 is in the range of 0-500ml/min.
The technical scheme of the utility model the beneficial effect who gains does:
1. the detection is timely and convenient: after the measuring device is connected with a sampling pipeline of a gas container to be measured, the portable instrument can be immediately measured after being started without waiting for preheating of the instrument and baseline walking;
2. the time for detecting the sample is short: the result can be obtained after about 30 seconds when the instrument detects a sample;
3. the whole sampling and measuring pipeline can be subjected to on-line detection all the time after being opened, and the detection result can be directly read on site when needed;
4. the whole sampling and analyzing process is sealed, and the radioactive gas is prevented from leaking to cause irradiation in personnel.
5. The detection range is wide, and the detection concentration of the hydrogen and oxygen gases can be accurately measured within the range of 0-100%.
Claims (7)
1. A portable oxygen concentration measuring device is characterized in that: the oxygen meter comprises a quick joint (1), a hydrogen flowmeter (2), an oxygen flowmeter (3) and a portable oxygen meter (4), wherein a sampling pipeline of a gas container to be tested is connected with the quick joint (1), the quick joint (1) is respectively connected with the hydrogen flowmeter (2) and the oxygen flowmeter (3), and the oxygen flowmeter (3) is connected with the portable oxygen meter (4).
2. The portable oxygen concentration measurement device according to claim 1, wherein: the portable oxygen concentration measuring device is also provided with a three-way valve (7), the oxygen flow meter (3) is connected with a port of the three-way valve (7), and a second port of the three-way valve (7) is connected with a port of the portable oxygen meter (4).
3. The portable oxygen concentration measurement device according to claim 2, wherein: the portable oxygen concentration measuring device is also provided with a second quick joint (5), the other port of the portable oxygen meter (4) is connected with the second quick joint (5), and the third port of the three-way valve (7) is connected with the second quick joint (5).
4. The portable oxygen concentration measurement device according to claim 3, wherein: portable oxygen concentration measurement device still receives the jar with nuclear power plant's waste gas and is connected, and No. three ports of three-way valve (7) are received the jar through No. two quick-operation joint (5) and nuclear power plant's waste gas and are connected.
5. The portable oxygen concentration measurement device according to claim 1, wherein: portable oxygen concentration measurement device still is provided with quick-operation joint No. three (8), and hydrogen flowmeter (2) are connected outside portable hydrogen meter through quick-operation joint No. three (8) and are measured hydrogen concentration.
6. The portable oxygen concentration measurement device according to any one of claims 1 to 5, wherein: the flow range of the hydrogen flowmeter (2) is 0-100ml/min.
7. The portable oxygen concentration measurement device according to claim 6, wherein: the flow range of the oxygen flowmeter (3) is 0-500ml/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920603451.2U CN210109074U (en) | 2019-04-29 | 2019-04-29 | Portable oxygen concentration measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920603451.2U CN210109074U (en) | 2019-04-29 | 2019-04-29 | Portable oxygen concentration measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210109074U true CN210109074U (en) | 2020-02-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920603451.2U Active CN210109074U (en) | 2019-04-29 | 2019-04-29 | Portable oxygen concentration measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210109074U (en) |
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2019
- 2019-04-29 CN CN201920603451.2U patent/CN210109074U/en active Active
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