CN202814452U - Calibration device of gas drainage comprehensive parameter measuring instrument - Google Patents
Calibration device of gas drainage comprehensive parameter measuring instrument Download PDFInfo
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- CN202814452U CN202814452U CN 201220507677 CN201220507677U CN202814452U CN 202814452 U CN202814452 U CN 202814452U CN 201220507677 CN201220507677 CN 201220507677 CN 201220507677 U CN201220507677 U CN 201220507677U CN 202814452 U CN202814452 U CN 202814452U
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- comprehensive parameters
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Abstract
The utility model discloses a calibration device of a gas drainage comprehensive parameter measuring instrument. The calibration device comprises a housing. The housing is internally provided with a concentrated pressure calibration portion. The concentrated pressure calibration portion comprises an inlet valve, a first adjusting valve, and a socket seat used for the connecting of the corresponding gas drainage comprehensive parameter measuring instrument, and the inlet valve, the first adjusting valve and the socket seat are sequentially connected in series by a pipeline. The socket seat comprises a gas inlet, a gas outlet, and a socket used for the inserting connection with the gas drainage comprehensive parameter measuring instrument, and the gas inlet, the gas outlet and the socket are mutually communicated. The first adjusting valve is connected with the gas inlet of the socket seat through the pipeline. Two branches whose tail ends are provided with exhaust holes are led out from the gas outlet position of the socket seat. One branch is connected with a positive pressure switch valve. The other branch is sequentially connected with a negative pressure switch valve, a pressure indicator, a second adjusting valve and a vacuum pump. An outlet of the vacuum pump is connected with the exhaust hole of the branch where the vacuum pump is positioned. The calibration device of the gas drainage comprehensive parameter measuring instrument improves the calibration efficiency on the gas drainage comprehensive parameter measuring instrument, and simplifies the calibration process on the gas drainage comprehensive parameter measuring instrument.
Description
Technical field
The utility model relates to mining detecting instrument, especially a kind of calibration equipment of gas drainage comprehensive parameters analyzer.
Background technology
Pipeline comprehensive gas parameter determinator is the common equipment under the coal mine, for detection of subsurface environment, thereby for the dangerous foundation that provides is provided, therefore the accuracy affects judged result of comprehensive gas parameter determinator just seems very important to the verification of comprehensive gas parameter determinator.The parameter that wherein said comprehensive parameters instrument detects mainly contains temperature, flow, pressure and methane concentration etc., described verification from what Parameters Instrument mainly is divided into the following aspects: the verification of relative pressure measuring accuracy, the verification of absolute pressure measuring accuracy, the verification of methane concentration measuring accuracy, temperature test precision checking and flow rate test precision checking.In the prior art, all be to be undertaken by different instruments to the verification of above-mentioned each parameter, have that tester is various, a problem such as complex operation, verification efficient are low.
Summary of the invention
The purpose of this utility model is to provide a kind of calibration equipment of gas drainage comprehensive parameters analyzer, to realize the methane concentration measuring accuracy of comprehensive gas parameter determinator and the verification of pressure test precision, thereby improve the verification efficient to pipeline comprehensive gas Parameters Instrument, simplify the checking procedure to it.
In order to address the above problem, the calibration equipment of gas drainage comprehensive parameters analyzer of the present utility model is by the following technical solutions: the calibration equipment of gas drainage comprehensive parameters analyzer, it is characterized in that, comprise housing, be provided with in the housing for the gas density measuring accuracy of verification gas drainage comprehensive parameters analyzer and the dense pressure check part of pressure test precision, described dense pressure check part comprises the gas admittance valve that is connected in series successively by pipeline, the first variable valve and the socket that is used for corresponding gas drainage comprehensive parameters analyzer connection, socket has the air intake opening that interconnects, the socket of pegging graft with gas drainage comprehensive parameters analyzer in gas outlet and be used for, the first variable valve is connected with the air intake opening of socket by pipeline, the branch road that two ends are equipped with exhausr port is drawn at the place, gas outlet of socket, wherein be connected with the malleation switch valve on a branch road, be connected with the negative pressure switch valve on another branch road in turn, rain glass, the second variable valve and vacuum pump, vacuum delivery side of pump are connected to the exhausr port of this vacuum pump place branch road.
Described rain glass is the air cartridge rain glass.
Described the first variable valve is with flowmeter.
Also be provided with the flow check part for the flow rate test precision of verification gas drainage comprehensive parameters analyzer in the described housing, the flow check part comprises whirlpool air pump and the piping flow measuring mechanism that is connected with described whirlpool air pump, and flow rate test mechanism comprises at least one pipeline flowmeter.
The pipeline flowmeter of described piping flow measuring mechanism is to be respectively applied to the plural pipeline flowmeter that the pipeline to different bores detects, described pipeline flowmeter all is connected with the whirlpool air pump by a transfer valve, and transfer valve all only allows a pipeline flowmeter to be communicated with the whirlpool air pump at arbitrary station place.
Described transfer valve is electrical ball valve.
Be provided with baffle-box between the whirlpool air pump of described flow check part and the piping flow measuring mechanism.
Also comprise for the electric machine controller of controlling vortex pump, be used to the electric machine controller of vortex pump that the guidance panel of setting flow value is provided, the corresponding connection with the electric machine controller corresponding port of the signal output part of guidance panel, guidance panel has the display screen for the measured value of display setting flow value and pipeline flowmeter.
Because gas drainage comprehensive parameters analyzer calibration equipment of the present utility model has described dense pressure check part, and described dense pressure check part comprises the successively gas admittance valve of serial connection, the first variable valve and the socket that is used for corresponding gas drainage comprehensive parameters analyzer connection, socket has the air intake opening that interconnects, the socket of pegging graft with gas drainage comprehensive parameters analyzer in gas outlet and be used for, the first variable valve is connected with the air intake opening of socket, socket is connected with malleation switch valve and the negative pressure switch valve that is divided into two-way by its gas outlet, the outlet of negative pressure switch valve is connected with the second variable valve and vacuum pump in turn, is provided with rain glass between the second variable valve and the negative pressure switch valve; Therefore can simulate by the cooperation of described positive and negative pressure switch the positive and negative pressure working environment of gas drainage comprehensive parameters analyzer, thereby can carry out respectively verification to gas density measuring accuracy and the pressure test precision of gas drainage comprehensive parameters analyzer, thereby realization a tractor serves several purposes, saved steps such as changing calibration equipment in the checking procedure, thereby improved the verification efficient to pipeline comprehensive gas Parameters Instrument, simplified the checking procedure to it.
Further, rain glass employing air cartridge rain glass can be realized the mensuration to the temperature test precision of gas drainage comprehensive parameters analyzer simultaneously; The first variable valve with flowmeter can realize naked eyes monitoring to the governing speed of the first variable valve and parameter, increase the accuracy of operation; The flow check part can be used for the flow rate test precision of gas drainage comprehensive parameters analyzer is carried out verification, it cooperates with above-mentioned dense pressure check part and air cartridge rain glass can make calibration equipment of the present utility model realize real a tractor serves several purposes, only just can realize verification to all parameters of gas drainage comprehensive parameters analyzer by this calibration equipment; A plurality of pipeline flowmeters can be realized the verification to the flow rate test precision of the gas drainage comprehensive parameters analyzer of not allowing caliber.
Description of drawings
Fig. 1 is the schematic diagram of dense pressure check part of embodiment 1 of the calibration equipment of gas drainage comprehensive parameters analyzer of the present utility model;
Fig. 2 is the schematic diagram of flow check part of embodiment 1 of the calibration equipment of gas drainage comprehensive parameters analyzer of the present utility model.
Embodiment
The embodiment 1 of the calibration equipment of gas drainage comprehensive parameters analyzer of the present utility model shown in Fig. 1-2, comprises housing and is located at dense pressure check part and flow check part in the housing.
Dense pressure check part comprises the gas admittance valve 11 that is connected in series successively by pipeline, the first variable valve 12 and socket 13, in the present embodiment, the first variable valve 12 is the variable valve with flowmeter, socket 13 is used for corresponding gas drainage comprehensive parameters analyzer and connects, socket 13 has the air intake opening that interconnects, the socket of pegging graft with gas drainage comprehensive parameters analyzer in gas outlet and be used for, the first variable valve 12 is connected by the air intake opening of pipeline with socket 13, two branch roads are drawn through pipeline in the gas outlet of socket 13, each branch road end is equipped with exhausr port, two exhausr ports can connect tracheae the gas in the verification is drained in the outside atmosphere, wherein be connected with malleation switch valve 14 on a branch road, be connected with negative pressure switch valve 15 on another branch road in turn, rain glass 18, the second variable valve 16 and vacuum pump 17, the outlet of vacuum pump 17 is connected to the exhausr port of vacuum pump 17 place branch roads, and the rain glass 18 in the present embodiment adopts the air cartridge rain glass.
The flow check part comprises whirlpool air pump 19 and the piping flow measuring mechanism that is connected with described whirlpool air pump, the piping flow measuring mechanism comprises the pipeline flowmeter 20 that two pipelines that are used for different bores detect, in the present embodiment, a bore for measurement gas drainage comprehensive parameters analyzer in two pipeline flowmeters 20 is 1 inch pipeline, be denoted as DN25 among Fig. 2, another bore that is used for measurement gas drainage comprehensive parameters analyzer is 2 inches pipeline, be shown as DN50 among Fig. 2, two pipeline flowmeters all are connected with whirlpool air pump 19 by a transfer valve 21, transfer valve 21 all only allows a pipeline flowmeter to be communicated with the whirlpool air pump at arbitrary station place, in the present embodiment, transfer valve 21 adopts electronic two-bit triplet ball valve.The flow check part also comprises the electric machine controller for the motor speed of control vortex pump, be used to the electric machine controller of vortex pump that the guidance panel of setting flow value is provided, electric machine controller is prior art, the corresponding connection with the electric machine controller corresponding port of the signal output part of guidance panel, guidance panel has the display screen for the measured value of display setting flow value and pipeline flowmeter.
For ease of operation, reading section, control panel and the display screen of the control end of the docking port of the import of the exhausr port of above-mentioned socket 13, two branch roads, gas admittance valve 11, pipeline flowmeter and each valve, each table all are located at surface of shell or outside in the present embodiment.
The principle of work of above-mentioned present embodiment 1 is as follows:
1, to the verification of the methane concentration measuring accuracy of gas drainage comprehensive parameters analyzer
When the concentration accuracy of detection of verification gas drainage comprehensive parameters analyzer when malleation is worked, use dense pressure check part, the gas admittance valve 11 of dense pressure check part is connected with the methane standard gas bottle, verification gas drainage comprehensive parameters analyzer to be measured is connected with the respective socket of socket 13, close negative pressure switch valve 15, open malleation switch valve 14 and gas admittance valve 11, the first variable valve 12 is transferred to minimum state, then open the methane standard gas bottle and regulate the pressure that the first variable valve 12 makes gas drainage comprehensive parameters analyzer and show to setting value (standard atmospheric pressure of 101.3kPa), the concentration of waiting for tested gas drainage comprehensive parameters analyzer show stable after, content according to tested gas drainage comprehensive parameters analyzer demonstration, the concentration value of record standard methane at this moment, displayed value and the electric parameter of gas drainage comprehensive parameters analyzer, more than value is all for experimenter's calibrating instrument, repeat a plurality of different methane concentrations points of above step verification, if all in the error range of the requirement of the gas drainage comprehensive parameters analyzer of verification, then the gas drainage comprehensive parameters analyzer of verification is qualified for the measured value of the various methane concentration calibrating gas of verification; Otherwise can demarcate (concrete scaling method is prior art) to gas drainage comprehensive parameters analyzer according to record methane concentration and corresponding electric parameter, thereby just can realize the verification to the malleation working concentration of gas drainage comprehensive parameters analyzer.
When the concentration accuracy of detection of verification gas drainage comprehensive parameters analyzer when negative pressure is worked, use dense pressure check part, the gas admittance valve 11 of dense pressure check part is connected with the methane standard gas bottle, verification gas drainage comprehensive parameters analyzer to be measured is connected with the respective socket of socket 13, close malleation switch valve 14, gas admittance valve 11 and the first variable valve 12, open negative pressure switch valve 15 and the second variable valve 16, then open gas drainage comprehensive parameters analyzer, the negative pressure value of opening vacuum pump 17 and observing vacuum table 18 is to being lower than the required negative pressure value of test, open successively the methane standard gas bottle this moment, gas admittance valve 11, then regulating the first variable valve 12 gos up pressure, regulating the second variable valve 16 makes pressure reach the required negative pressure value of test, the concentration of waiting for tested gas drainage comprehensive parameters analyzer show stable after, content according to tested gas drainage comprehensive parameters analyzer demonstration, the displayed value of record methane normal concentration value and gas drainage comprehensive parameters analyzer and some parameter, according to each methane concentration point of above step successively verification, if all in the error range of the requirement of the gas drainage comprehensive parameters analyzer of verification, then the gas drainage comprehensive parameters analyzer of verification is qualified for the measured value of the various methane concentration calibrating gas of verification; Otherwise can demarcate gas drainage comprehensive parameters analyzer according to record methane concentration and corresponding electric parameter, so far realize the verification to the concentration determination precision of gas drainage comprehensive parameters analyzer.
2, to the verification of the pressure of methane measuring accuracy of gas drainage comprehensive parameters analyzer
When the pressure test precision of verification gas drainage comprehensive parameters analyzer, use dense pressure check part, can at first close malleation switch valve 14 and gas admittance valve 11, open negative pressure switch valve 15 and the second variable valve 16, and the second variable valve 16 transferred to minimum state, then this calibration equipment is connected with corresponding gas drainage comprehensive parameters analyzer, open gas drainage comprehensive parameters analyzer and it is made as the absolute pressure display mode, open vacuum pump 18 this moment to negative pressure to steady state (SS), record vacuum table displayed value at this moment, instrument absolute pressure displayed value reaches corresponding with it electric parameter; If the some points in the middle of the verification, then need to open gas admittance valve 11, slowly regulate the first variable valve 12, make it to reach desired force value, after stable successively record data get final product, at last) close vacuum pump 18 and calibration equipment, gas drainage comprehensive parameters analyzer is unloaded, record the force value (rain glass displayed value) under the current atmospheric pressure, the electric parameter of instrument display; (8) computing method of pressure checking are: the current atmospheric pressure P0-| of pressure displayed value P=vacuum table displayed value P1 ︱, satisfy error requirements if the pressure displayed value that is got by the pressure indicating value of verification gas drainage comprehensive parameters analyzer and calculating this moment is compared, then verification is qualified; If defective then need to re-start demarcation.
3, to the verification of the temperature test precision of gas drainage comprehensive parameters analyzer
Be single-point calibration with the temperature calibration of gas drainage comprehensive parameters analyzer to be verified, when needing verification gas drainage comprehensive parameters analyzer is opened, make it to be under the measuring state, after gas drainage comprehensive parameters analyzer is stablized 5 minutes, read on the aneroid barometer on the dense pressure check part temperature value with compared by tester, the then verification that meets the demands is qualified; If do not meet the demands, then temperature value, is regulated the instrument calibration value and is got final product to current temperature value with reference to by the tester operation instructions as current standard value on the aneroid barometer.
4, to the verification of the flow rate test precision of gas drainage comprehensive parameters analyzer
The use traffic check part, bore (the flow measurement bore of gas drainage comprehensive parameters analyzer is generally 1 inch or 2 inches) according to the flow tube of gas drainage comprehensive parameters analyzer to be measured, select the caliber of corresponding pipeline flowmeter 20, and the interface of pipeline flowmeter 20 docked with the flow tube of gas drainage comprehensive parameters analyzer to be measured, selection according to the previous step caliber, operation transfer valve 21, whirlpool air pump 19 is linked to each other with the pipeline flowmeter 20 of access gas drainage comprehensive parameters analyzer to be measured, guidance panel on the operating line flowmeter 20, set the flow point that needs demarcation, and at the flow value of the demonstration screen display flow point of guidance panel, guidance panel is transferred to setting value the electric machine controller of control whirlpool air pump 19, electric machine controller is regulated the motor speed of whirlpool air pump 19 automatically, and can Display on the same screen on the display screen of guidance panel current flow measurements and set flow value, until current flow measurements equates with the setting flow value, then the flow sensor flow measurements that shows and the flow measurements that is shown by the gas drainage comprehensive parameters analyzer of verification of pipeline flowmeter 20 are compared, can carry out verification to the measuring accuracy of gas drainage comprehensive parameters analyzer.The motor speed of whirlpool air pump 19 is automatically to be adjusted according to the setting flow value of the present flow rate calibration point of the guidance panel on the pipeline flowmeter 20 by electric machine controller, flow sensor can comprise a plurality of flux scale fixed points, the setting flow value that each calibration point is corresponding presets, the upper knob down that only need press on the guidance panel can switch, and can carry out verification to gas drainage comprehensive parameters analyzer at the different flow calibration point easily.
In other embodiment of the present utility model, also dense pressure check part can only be arranged in the housing and not have the flow check part, the first variable valve of described dense pressure check part also can not be with flowmeter or and its flowmeter between adopt split-type structural; Described rain glass can also adopt the rain glass of other form; Also can between described whirlpool air pump 19 and transfer valve 21, gas buffer tank be set; Can separately arrange also to the electric machine controller of the motor speed of vortex pump control that control panel is controlled in addition and the display part of the pipeline flowmeter of getting along well is installed together.
Claims (8)
1. the calibration equipment of gas drainage comprehensive parameters analyzer, it is characterized in that, comprise housing, be provided with in the housing for the gas density measuring accuracy of verification gas drainage comprehensive parameters analyzer and the dense pressure check part of pressure test precision, described dense pressure check part comprises the gas admittance valve that is connected in series successively by pipeline, the first variable valve and the socket that is used for corresponding gas drainage comprehensive parameters analyzer connection, socket has the air intake opening that interconnects, the socket of pegging graft with gas drainage comprehensive parameters analyzer in gas outlet and be used for, the first variable valve is connected with the air intake opening of socket by pipeline, the branch road that two ends are equipped with exhausr port is drawn at the place, gas outlet of socket, wherein be connected with the malleation switch valve on a branch road, be connected with the negative pressure switch valve on another branch road in turn, rain glass, the second variable valve and vacuum pump, vacuum delivery side of pump are connected to the exhausr port of this vacuum pump place branch road.
2. the calibration equipment of gas drainage comprehensive parameters analyzer according to claim 1 is characterized in that, described rain glass is the air cartridge rain glass.
3. the calibration equipment of gas drainage comprehensive parameters analyzer according to claim 1 is characterized in that, described the first variable valve is with flowmeter.
4. the calibration equipment of each described gas drainage comprehensive parameters analyzer according to claim 1-3, it is characterized in that, also be provided with the flow check part for the flow rate test precision of verification gas drainage comprehensive parameters analyzer in the described housing, the flow check part comprises whirlpool air pump and the piping flow measuring mechanism that is connected with described whirlpool air pump, and flow rate test mechanism comprises at least one pipeline flowmeter.
5. the calibration equipment of gas drainage comprehensive parameters analyzer according to claim 4, it is characterized in that, the pipeline flowmeter of described piping flow measuring mechanism is to be respectively applied to the plural pipeline flowmeter that the pipeline to different bores detects, described pipeline flowmeter all is connected with the whirlpool air pump by a transfer valve, and transfer valve all only allows a pipeline flowmeter to be communicated with the whirlpool air pump at arbitrary station place.
6. the calibration equipment of gas drainage comprehensive parameters analyzer according to claim 5 is characterized in that, described transfer valve is electrical ball valve.
7. the calibration equipment of gas drainage comprehensive parameters analyzer according to claim 4 is characterized in that, is provided with baffle-box between the whirlpool air pump of flow check part and the piping flow measuring mechanism.
8. the calibration equipment of gas drainage comprehensive parameters analyzer according to claim 4, it is characterized in that, also comprise for the electric machine controller of controlling vortex pump, be used to the electric machine controller of vortex pump that the guidance panel of setting flow value is provided, the corresponding connection with the electric machine controller corresponding port of the signal output part of guidance panel, guidance panel has the display screen for the measured value of display setting flow value and pipeline flowmeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220507677 CN202814452U (en) | 2012-09-29 | 2012-09-29 | Calibration device of gas drainage comprehensive parameter measuring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220507677 CN202814452U (en) | 2012-09-29 | 2012-09-29 | Calibration device of gas drainage comprehensive parameter measuring instrument |
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| Publication Number | Publication Date |
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| CN202814452U true CN202814452U (en) | 2013-03-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220507677 Withdrawn - After Issue CN202814452U (en) | 2012-09-29 | 2012-09-29 | Calibration device of gas drainage comprehensive parameter measuring instrument |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102879037A (en) * | 2012-09-29 | 2013-01-16 | 郑州光力科技股份有限公司 | Verifying device for gas drainage comprehensive parameter tester |
| CN111330095A (en) * | 2020-03-10 | 2020-06-26 | 广州医科大学附属第三医院（广州重症孕产妇救治中心、广州柔济医院） | Intelligent negative pressure suction control system |
-
2012
- 2012-09-29 CN CN 201220507677 patent/CN202814452U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102879037A (en) * | 2012-09-29 | 2013-01-16 | 郑州光力科技股份有限公司 | Verifying device for gas drainage comprehensive parameter tester |
| CN102879037B (en) * | 2012-09-29 | 2015-03-25 | 郑州光力科技股份有限公司 | Verifying device for gas drainage comprehensive parameter tester |
| CN111330095A (en) * | 2020-03-10 | 2020-06-26 | 广州医科大学附属第三医院（广州重症孕产妇救治中心、广州柔济医院） | Intelligent negative pressure suction control system |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130320 Effective date of abandoning: 20150325 |
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| RGAV | Abandon patent right to avoid regrant |