CN214334831U - Portable multichannel area sweeps trace oxygen analysis appearance verification system and detection car - Google Patents
Portable multichannel area sweeps trace oxygen analysis appearance verification system and detection car Download PDFInfo
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- CN214334831U CN214334831U CN202022873478.9U CN202022873478U CN214334831U CN 214334831 U CN214334831 U CN 214334831U CN 202022873478 U CN202022873478 U CN 202022873478U CN 214334831 U CN214334831 U CN 214334831U
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Abstract
The utility model relates to a mobile multi-channel purging trace oxygen analyzer calibration system, which comprises a standard gas storage device, a pressure control device, a flow control device and a pipeline switching device; the standard gas storage device is provided with a plurality of gas storage units, the pressure control device is provided with an adjusting assembly, one end of the adjusting assembly is communicated with gas outlets of the gas storage units, the other end of the adjusting assembly is connected with the flow control device, one end of the pipeline switching device is connected with the other end of the flow control device, and the other end of the pipeline switching device is used for being connected with the trace oxygen analyzer. The efficiency of multi-point verification is improved by connecting the gas storage units loaded with the trace oxygen standard gases with different concentrations; the problem of among the prior art during multipoint verification dismantle the relief pressure valve repeatedly, lead to ambient air to sneak into, standard gas consumes greatly is solved.
Description
Technical Field
The utility model relates to a trace oxygen analysis appearance examination technical field especially relates to a portable multichannel area sweeps trace oxygen analysis appearance examination system and detection vehicle.
Background
The most important active gases in known industrial gases are oxygen and hydrogen, and the realization of the control on the oxygen concentration, particularly the accurate control, is more and more emphasized. The trace oxygen analyzer is widely applied to industries such as steel, metallurgy, thermoelectricity, petrifaction, chemical engineering, coking, PVC, polycrystalline silicon, synthetic ammonia and the like, and comprises the use occasions of air separation oxygen generation, air separation nitrogen generation, automatic analysis of oxygen content in chemical engineering processes, analysis of oxygen content in protective gas in electronic industry, analysis of oxygen content in protective gas of high-temperature sintering furnaces such as magnetic materials and the like, analysis of oxygen content in glass and building material industry, analysis of oxygen content in other various industries and the like.
The trace oxygen analyzer is mainly classified into a zirconia oxygen analyzer and an electrochemical oxygen analyzer according to the principle. The principle of the zirconia oxygen analyzer is that a zirconia ceramic sensitive element is utilized to measure the oxygen potential of a measured gas, and then the corresponding oxygen concentration is calculated by the chemical equilibrium principle; the principle of the electrochemical oxygen analyzer is that under the action of oxygen, a sensor reacts on a positive electrode and a negative electrode, current passes through the sensor when the sensor is externally connected with a low-resistance load circuit, and then the corresponding oxygen concentration is calculated through the direct proportion relation between the magnitude of the current and the oxygen content.
The trace oxygen analyzer needs a verification system to complete verification work on the trace oxygen analyzer regularly, and the conventional verification system mainly has the following technical problems:
1) multiple points need to be measured, air is often mixed when standard gas is switched, so that the instrument needs secondary purging, time and labor are wasted when the pressure reducing valve is disassembled, and the verification time is long and the standard gas consumption is high;
2) in the verification process, due to the infiltration of ambient air, the difficulty of purging is often higher, and the inner wall of a conventional pipeline is rough to work, so that oxygen adsorption is easily caused, and the pipeline is difficult to purge;
3) a large number of standard gas steel cylinders, pressure reducing valves and pipeline equipment need to be transported back and forth, so that physical strength of inspectors is greatly consumed, and potential safety hazards exist.
Therefore, there is a need for a verification system that does not require repeated disassembly of the pressure relief valve and that is easy to purge and easy to move to address the above-mentioned technical problems.
Disclosure of Invention
In order to solve the technical problem, the utility model provides a portable multichannel area sweeps trace oxygen analyzer verification system. The problem of among the prior art during multipoint verification dismantle the relief pressure valve repeatedly, lead to ambient air to sneak into, standard gas consumes greatly is solved.
The technical effects of the utility model are through following realization:
a mobile multi-channel calibration system with a purging trace oxygen analyzer comprises a standard gas storage device, a pressure control device, a flow control device and a pipeline switching device; the standard gas storage device is provided with a plurality of gas storage units, the pressure control device is provided with an adjusting assembly, one end of the adjusting assembly is communicated with gas outlets of the gas storage units, the other end of the adjusting assembly is connected with the flow control device, one end of the pipeline switching device is connected with the other end of the flow control device, and the other end of the pipeline switching device is used for being connected with the trace oxygen analyzer. The pipeline switching device is used for controlling standard gas with different concentrations of different gas storage units to enter the trace oxygen analyzer. Through setting up a plurality of gas storage units, can load the trace oxygen standard gas for need not dismantle the relief pressure valve repeatedly when carrying out the multiple spot measurement, avoided sneaking into of ambient air, thereby improved the verification efficiency of trace oxygen analysis appearance verification system, reduced the consumption of standard gas. The gas storage unit can be loaded with high-purity nitrogen, the nitrogen purging function of the trace oxygen analyzer verification system is increased, and no air contact is realized in the purging process.
Further, the adjusting component comprises a high-pressure gauge, a gas reducing valve and a low-pressure gauge, one end of the high-pressure gauge is connected with the gas storage unit, the other end of the high-pressure gauge is connected with the gas reducing valve, and the other end of the gas reducing valve is connected with the low-pressure gauge. The high-pressure meter is used for displaying the residual gas pressure of the gas storage unit, the gas pressure reducing valve is used for adjusting the gas pressure output by the gas storage unit, and the low-pressure meter is used for displaying the gas pressure output by the gas storage unit.
Further, the flow control device comprises a first needle valve, and the first needle valve is connected with the other end of the low-pressure gauge. The first needle valve realizes coarse adjustment of the gas flow output by the low pressure meter according to the flow requirements of micro oxygen analyzers of different models.
Further, the pipeline switching device comprises a first directional valve, and the first directional valve is connected with the other end of the first needle valve. The standard gas output of different gas storage units is controlled through different on-off combinations of the first directional valve, and the disassembly of the pressure reducing valve and the mixing of air are avoided when standard gas with different concentrations is switched.
Further, the pipeline switching device further comprises a second needle valve, and the second needle valve is connected with the other end of the first directional valve. The second needle valve is used for finely adjusting the gas flow after the first needle valve is adjusted.
Further, pipeline auto-change over device still includes flowmeter and second directional valve, flowmeter one end with the second needle valve other end is connected, the flowmeter other end with the second directional valve is connected, the second directional valve is used for connecting with trace oxygen analyzer. The flow meter measures and controls the gas flow adjusted by the second needle valve.
Further, the pipeline switching device is further provided with a clamping sleeve connector, and the clamping sleeve connector is used for connecting the second directional valve with the trace oxygen analyzer. Trace oxygen analysis appearance verification system can be furnished with the cutting ferrule of different models to different trace oxygen analysis appearance air inlets, and the air inlet of having avoided directly connecting trace oxygen analysis appearance with the rubber tube leads to the leakproofness poor.
Further, still include the gas pipeline, gas storage device, pressure control device, the flow control device with pass through between the pipeline auto-change over device the gas pipeline is connected, the gas pipeline specifically is interior polishing stainless steel pipeline. Through polishing stainless steel pipeline in setting up, prevent effectively that conventional pipeline inner wall from doing work roughly and causing oxygen absorption easily.
Further, the storage unit is specifically a standard gas steel bottle, and the standard gas steel bottle is equipped with the directive wheel. Through being equipped with the directive wheel for can remove to on-the-spot each point according to actual need and carry out the examination work, improve the security of experiment.
In addition, still provide a detection car, including automobile body and foretell trace oxygen analyzer verification system, the automobile body bottom is equipped with the directive wheel.
As described above, the utility model discloses following beneficial effect has:
1) through setting up a plurality of gas storage units for need not dismantle the relief pressure valve repeatedly when carrying out the multiple spot measurement, avoided sneaking into of ambient air, thereby improved trace oxygen analyzer verification system's verification efficiency, reduced the consumption of standard gas.
2) Through polishing stainless steel pipeline in setting up, prevent effectively that conventional pipeline inner wall from doing work roughly and causing oxygen absorption easily.
3) The gas storage unit can be loaded with high-purity nitrogen, the nitrogen purging function of the trace oxygen analyzer verification system is increased, and no air contact is realized in the purging process.
4) Through being equipped with the stainless steel joint that cup joints of different models, avoided the rubber tube directly to be connected with trace oxygen analyzer, satisfied the diversified demand of different producer model instruments in the verification process.
5) The standard gas steel cylinder is provided with the steering wheel, so that the standard gas steel cylinder can be moved to each point on site to carry out verification work according to actual needs, and the safety of the experiment is improved.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description of the embodiment or the prior art will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
FIG. 1 is a schematic flow chart of an apparatus according to an embodiment of the present disclosure;
wherein the reference numerals in the figures correspond to:
the device comprises a standard gas storage device 1, a gas storage unit 11, a pressure control device 2, an adjusting component 21, a high pressure meter 211, a gas reducing valve 212, a low pressure meter 213, a flow control device 3, a first needle valve 31, a pipeline switching device 4, a first direction valve 41, a second needle valve 42, a flow meter 43 and a second direction valve 44.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Example 1:
a mobile multi-channel calibration system with a purging trace oxygen analyzer comprises a standard gas storage device 1, a pressure control device 2, a flow control device 3 and a pipeline switching device 4; the standard gas storage device 1 is provided with a plurality of gas storage units 11, the plurality of gas storage units 11 are used for loading a trace oxygen standard gas or a high-purity nitrogen gas, the pressure control device 2 is provided with an adjusting component 21, one end of the adjusting component 21 is communicated with a gas outlet of the gas storage unit 11, the other end of the adjusting component 21 is connected with the flow control device 3, one end of the pipeline switching device 4 is connected with the other end of the flow control device 3, and the other end of the pipeline switching device 4 is used for being connected with a trace oxygen analyzer. In this embodiment, the standard gas storage device 1 is composed of 8 independent gas storage units 11, the storage unit 11 is specifically a standard gas steel cylinder, each standard gas steel cylinder is independently provided with a bottle of trace oxygen standard gas, a stainless steel threaded joint is arranged at the outlet of the standard gas steel cylinder, the independent standard gas is connected to the pressure control device 2, and under the condition that the standard gas storage device 1 works in full load, 8 bottles of trace oxygen standard gas with different concentrations are loaded simultaneously. The standard gas steel cylinder can also be loaded with high-purity nitrogen, and the whole verification system pipeline is blown after the micro oxygen analyzer is started to check whether the pipeline has leakage. The pipeline switching device 4 is used for controlling standard gas with different concentrations loaded in different gas storage units 11 to enter the trace oxygen analyzer. The number of the adjusting assemblies 21 is 8 and is matched with the number of the standard gas storage devices. The number of the pressure control devices and the flow control devices is matched with that of the gas storage units.
Further, 8 adjusting components 21 are connected with 8 gas storage units 11 in a one-to-one correspondence manner. The adjusting unit 21 includes a high pressure gauge 211, a gas reducing valve 212, and a low pressure gauge 213, one end of the high pressure gauge 211 is connected to the gas storage unit 11, the other end of the high pressure gauge 211 is connected to the gas reducing valve 212, and the other end of the gas reducing valve 212 is connected to the low pressure gauge 213. The high-pressure meter is used for displaying the residual gas pressure of the gas storage unit, the gas pressure reducing valve is used for adjusting the gas pressure output by the gas storage unit, and the low-pressure meter is used for displaying the gas pressure output by the gas storage unit. In this embodiment, the high pressure gauge has a range of 0 to 25MPa, and the low pressure gauge has a range of 0 to 1 MPa.
Further, the flow control device 3 includes the first needle valves 31, and the first needle valves 31 are specifically 8 and are connected to the other ends of the 8 low pressure meters 213 in a one-to-one correspondence manner. The first needle valve realizes coarse adjustment of the gas flow output by the low pressure meter according to the flow requirements of micro oxygen analyzers of different models.
Further, the pipeline switching device 4 comprises a first directional valve 41, a second needle valve 42, a flow meter 43 and a second directional valve 44, wherein the other end of the first needle valve 31, the first directional valve 41, the second needle valve 42, one end of the flow meter 43 and the second directional valve 44 are connected in sequence, and the other end of the second directional valve 44 is used for being connected with the trace oxygen analyzer. The pipeline switching device 4 firstly controls the micro oxygen standard gas in different standard gas steel cylinders to be output to the second needle valve 42 through different on-off combinations of the 8 first directional valves 41, finely adjusts the flow of each gas after being adjusted by the first needle valve 31, then measures and controls the flow of the gas after being adjusted by the second needle valve 42 through the flow meter 43, and finally can control the gas to enter the micro oxygen analyzer through the on-off control of the second directional valve 44. The number of the second directional valves 44 is specifically 2, the pipeline connected with the pipeline switching device and the trace oxygen analyzer is provided with a path A and a path B, and the 2 second directional valves 44 can be used for controlling any path of gas in the path A and the path B to enter the trace oxygen analyzer. The pipeline switching device enters the trace oxygen analyzer by switching standard gases with different concentrations, so that the disassembly of the pressure reducing valve and the mixing of air are avoided. The flow meter measures and controls the gas flow adjusted by the second needle valve. The flow control range of the flowmeter is 0-2L/min.
Further, the pipeline switching device 4 is further provided with a ferrule connector for connecting the second direction valve 44 with the trace oxygen analyzer. Be furnished with the cutting ferrule of different models to different trace oxygen analysis appearance air inlets, avoided directly leading to the leakproofness poor with the air inlet of rubber tube connection trace oxygen analysis appearance.
Further, still include the gas pipeline, connect through the gas pipeline between gas storage device 1, pressure control device 2, flow control device 3 and the pipeline auto-change over device 4, the gas pipeline specifically is interior polishing stainless steel pipeline. Through polishing stainless steel pipeline in setting up, prevent effectively that conventional pipeline inner wall from doing work roughly and causing oxygen absorption easily. The gas line was made of SUS316L and had a diameter and thickness of phi 6 x 1 (unit: mm).
Further, the storage unit 11 is specifically a standard gas steel cylinder, and the standard gas steel cylinder is equipped with the directive wheel for can remove to on-the-spot each point according to actual need and carry out verification work, improve the security of experiment.
Example 2:
a detection vehicle comprises a vehicle body and the trace oxygen analyzer verification system in the embodiment 1, wherein the vehicle body is made of stainless steel materials, and a steering wheel is arranged at the bottom of the vehicle body. The vehicle body is made of stainless steel, and the length, width and height of the detection vehicle are 1300 x 700 x 950 (unit: mm).
As described above, the utility model discloses following beneficial effect has:
1) through setting up a plurality of gas storage units for need not dismantle the relief pressure valve repeatedly when carrying out the multiple spot measurement, avoided sneaking into of ambient air, thereby improved trace oxygen analyzer verification system's verification efficiency, reduced the consumption of standard gas.
2) Through polishing stainless steel pipeline in setting up, prevent effectively that conventional pipeline inner wall from doing work roughly and causing oxygen absorption easily.
3) The gas storage unit can be loaded with high-purity nitrogen, the nitrogen purging function of the trace oxygen analyzer verification system is increased, and no air contact is realized in the purging process.
4) Through being equipped with the stainless steel joint that cup joints of different models, avoided the rubber tube directly to be connected with trace oxygen analyzer, satisfied the diversified demand of different producer model instruments in the verification process.
5) The standard gas steel cylinder is provided with the steering wheel, so that the standard gas steel cylinder can be moved to each point on site to carry out verification work according to actual needs, and the safety of the experiment is improved.
In this document, the terms front, back, up, down, and the like are used for the sake of clarity and convenience only in describing the technical solutions in which the devices are located in the drawings and the devices are located relative to each other. It is to be understood that the use of the directional terms should not be taken to limit the scope of the claims.
The embodiments and features of the embodiments described herein above can be combined with each other without conflict.
The above disclosure is only a preferred embodiment of the present invention, and certainly should not be taken as limiting the scope of the invention, which is defined by the claims and their equivalents.
Claims (10)
1. A mobile multi-channel trace oxygen analyzer calibration system with purging function is characterized by comprising a standard gas storage device (1), a pressure control device (2), a flow control device (3) and a pipeline switching device (4); mark gas storage device (1) is equipped with a plurality of gas storage units (11), pressure control device (2) are equipped with adjusting part (21), adjusting part (21) one end with gas storage unit (11) gas outlet intercommunication, adjusting part (21) other end with flow control device (3) are connected, pipeline auto-change over device (4) one end with flow control device (3) other end is connected, pipeline auto-change over device (4) other end is used for being connected with trace oxygen analyzer.
2. The trace oxygen analyzer verification system according to claim 1, wherein the adjustment assembly (21) comprises a high pressure gauge (211), a gas pressure reducing valve (212) and a low pressure gauge (213), wherein one end of the high pressure gauge (211) is connected with the gas storage unit (11), the other end of the high pressure gauge (211) is connected with the gas pressure reducing valve (212), and the other end of the gas pressure reducing valve (212) is connected with the low pressure gauge (213).
3. The trace oxygen analyzer verification system according to claim 2, wherein the flow control device (3) comprises a first needle valve (31), the first needle valve (31) being connected to the other end of the low pressure gauge (213).
4. The trace oxygen analyzer verification system according to claim 3, wherein the pipeline switching device (4) comprises a first directional valve (41), and the first directional valve (41) is connected with the other end of the first needle valve (31).
5. The trace oxygen analyzer verification system according to claim 4, wherein the pipeline switching device (4) further comprises a second needle valve (42), and the second needle valve (42) is connected to the other end of the first direction valve (41).
6. The trace oxygen analyzer verification system according to claim 5, wherein the pipeline switching device (4) further comprises a flow meter (43) and a second direction valve (44), one end of the flow meter (43) is connected with the other end of the second needle valve (42), the other end of the flow meter (43) is connected with the second direction valve (44), and the second direction valve (44) is used for being connected with the trace oxygen analyzer.
7. The trace oxygen analyzer calibration system according to claim 6, wherein the pipeline switching device (4) is further provided with a ferrule connector for connecting the second direction valve (44) with the trace oxygen analyzer.
8. The trace oxygen analyzer calibration system according to claim 1, further comprising a gas pipeline, wherein the gas storage device (1), the pressure control device (2), the flow control device (3) and the pipeline switching device (4) are connected through the gas pipeline, and the gas pipeline is specifically an inner polished stainless steel pipeline.
9. The trace oxygen analyzer verification system according to claim 1, wherein the gas storage unit (11) is a standard gas cylinder, and the standard gas cylinder is provided with a steering wheel.
10. The detection vehicle is characterized by comprising a vehicle body and the trace oxygen analyzer verification system as claimed in any one of claims 1 to 9, wherein the vehicle body is made of stainless steel materials, and steering wheels are arranged at the bottom of the vehicle body.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022873478.9U CN214334831U (en) | 2020-12-03 | 2020-12-03 | Portable multichannel area sweeps trace oxygen analysis appearance verification system and detection car |
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| CN202022873478.9U CN214334831U (en) | 2020-12-03 | 2020-12-03 | Portable multichannel area sweeps trace oxygen analysis appearance verification system and detection car |
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| CN214334831U true CN214334831U (en) | 2021-10-01 |
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| CN202022873478.9U Active CN214334831U (en) | 2020-12-03 | 2020-12-03 | Portable multichannel area sweeps trace oxygen analysis appearance verification system and detection car |
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