CN105353092A - Gas sensor calibrating container - Google Patents
Gas sensor calibrating container Download PDFInfo
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- CN105353092A CN105353092A CN201510850968.8A CN201510850968A CN105353092A CN 105353092 A CN105353092 A CN 105353092A CN 201510850968 A CN201510850968 A CN 201510850968A CN 105353092 A CN105353092 A CN 105353092A
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- cover plate
- gas sensor
- gas
- side cover
- main cavity
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Abstract
The invention discloses a gas sensor calibrating container which comprises a main cavity body, a left side cover plate and a right side cover plate. A gas sensor and a pressure sensor which are connected with a computer are arranged in the main cavity body. The left side cover plate and the right side cover plate are fixedly connected with the main cavity body through bolts and elastic special-shaped abrasion-resistant sealing rings in a sealed mode. The cross section of each elastic special-shaped abrasion-resistant sealing ring is a hollow circular ring. Each hollow circular ring comprises an outer circle body and an inner circle body. A plurality of first round array grooves are formed in the circumference of each outer circle body. A plurality of second round array grooves are formed in each inner circle body. The first round array grooves and the second round array grooves are arranged alternatively. The tail end of a gas outlet pipeline is connected with a recovering bottle. By the adoption of the structure, sealing performance and abrasion-resisting performance are good, poor sealing can be found in time, and the container is more suitable for calibrating low-concentration gas and poisonous gas, and can recover waste gas, and protect environment and workers.
Description
Technical field
The present invention relates to a kind of servicing unit, particularly a kind of gas sensor calibration container when gas sensor is produced and uses.
Background technology
What carry out measuring general to material concentration with sensor is incidence relation between sensor response and test substance concentration.And the zero point of sensor and sensitivity are in use inevitably drifted about.In order to obtain measured value more accurately, before generally all requiring measurement, sensor is demarcated.
Demarcate and need to measure sensor with the standard substance of concentration known, for liquid, solid matter, the acquisition of standard substance concentration is relatively easy, and generally weighed by analytical balance in laboratory, volumetric flask constant volume just can be accomplished.
And Demarcate Gas, be substantially the value that produces using a kind of high precision apparatus as the ruler of tolerance, be input in sensor to be calibrated, obtain the output quantity of sensor, then by mathematical method, obtain the corresponding relation between sensor constrained input.The demarcation of gas sensor, sensor, as input value, is put into the airtight container being filled with calibrating gas and is demarcated it by the known calibrating gas of normal working concentration.
US Patent No. 4829809 (Citytech1989) discloses a kind of gas electrolytic analysis apparatus and method, one electrochemical sensor is placed in the cavity of known volume by it, first in cavity, pass into the gas to be measured of unknown concentration, cavity is closed by timing signal, because sensor consumes gas, its response is constantly reduced, according to Farady law, its electric current is decayed with exponential form, according to sensor current change curve in time, sensor initial response electric current, cavity volume can solve transducer sensitivity and gas concentration.
Above-mentioned patent provides a kind of without the need to knowing that transducer sensitivity just can the method for measure gas concentrations, but still needs the cavity being equipped with a kind of sealing.
Therefore visible, the sealing of container seems and is even more important.
At present, in existing gas sensor calibration instrument, the normal bonding jelly that adopts pastes instrument main cavity and remaining part, and bonding jelly has certain influence to gas concentration, and sealing effectiveness is bad, and this makes the demarcation of light concentration gas there is larger difficulty.In addition, existing calibrating instrument cannot reclaim gas mostly, and the marked gas be discharged in air can pollute air, even impacts demarcation the healthy of personnel.
So, for the shortcoming of existing calibrating instrument, be necessary to develop a kind of new gas sensor calibration container, while promoting instrument sealing, accomplish the protection to environment and staff.
Application number disclosed in Dec 31 in 2014 is No. 201420505880.3 Chinese utility model patents, and the name of its innovation and creation is called " gas sensor calibration container ", and it comprises main cavity, left side cover plate, right side cover plate, and two cover plates are positioned at the two ends of main cavity; Left side cover plate is fixed with threeway; One end of threeway is air intake opening, and air intake opening is provided with air intake opening non-return valve; One end is gas outlet, left side cover plate offers three through holes, and gas outlet is communicated with main cavity by three through holes; One end is connected with densitometer; Right side cover plate is fixed with insulating disc and two-way; Insulating disc runs through multiple binding post, one end of binding post is positioned at main cavity inside, and one end is positioned at insulating disc outside; Right side cover plate offers through hole, and one end of this two-way is communicated with main cavity by through hole, and the other end is connected with aspiration pump, two-way is provided with gas outlet non-return valve; Aspiration pump is communicated with returnable bottle.
Although above-mentioned patented claim avoids the use of bonding jelly, and can to waste gas recovery.But, when the sealing of left side cover plate, rear side cover plate and main cavity, mainly have employed O-ring seal, commercially available O-ring seal elasticity is little, anti-wear performance is poor, use after a period of time, easily wearing and tearing or aging, when wearing and tearing or aging after, not easily realize, easily cause demarcation seal of vessel performance poor, easily leak gas, be not suitable for the demarcation of light concentration gas and toxic gas.
Summary of the invention
The technical problem to be solved in the present invention is for above-mentioned the deficiencies in the prior art, and a kind of gas sensor calibration container is provided, this gas sensor calibration container have employed elasticity abnormity wear-resistant seal circle, sealing and anti-wear performance good, and energy Timeliness coverage poor sealing situation, be more suitable for the demarcation of light concentration gas and toxic gas.
In addition, above-mentioned gas transducer calibration container can also reclaim waste gas, accomplishes the protection to environment and staff simultaneously.
For solving the problems of the technologies described above, the technical solution used in the present invention is:
A kind of gas sensor calibration container, comprise the main cavity of both ends open, be separately positioned on the left side cover plate of main cavity both sides and rear side cover plate, gas inlet line on the cover plate of left side, right side cover plate is provided with gas exit line, gas sensor is provided with in main cavity, main cavity is also provided with pressure transducer, pressure transducer and gas sensor all be positioned at the computing machine demarcated outside container and be connected, described left side cover plate and rear side cover plate all by bolt and elasticity abnormity wear-resistant seal circle and main cavity be sealedly and fixedly connected, the xsect of described elasticity abnormity wear-resistant seal circle is hollow circular ring, this hollow circular ring comprises outer circle and interior circle, described outer circle circumferentially offer several the first circular array grooves radially from outside to inside, interior circle circumferentially from inside to outside offer several the second circular array grooves radially, the length of each first circular array groove and each second circular array groove is all less than the thickness of equidirectional upper hollow circular ring, and the first circular array groove and the second circular array groove are staggered, the tail end of described gas exit line is connected with returnable bottle.
Described pressure transducer and gas sensor all be positioned at the computing machine infrared radio demarcated outside container and be connected.
Described right side cover plate is provided with insulating disc, insulating disc is provided with the binding post run through, described pressure transducer is all connected with computing machine by binding post with gas sensor.
Each described first circular array groove is equal with the length of each second circular array groove.
The surface of described elasticity abnormity wear-resistant seal circle is coated with silica gel investment precoat.
After the present invention adopts said structure, there is following beneficial effect:
1. the setting of above-mentioned elasticity abnormity wear-resistant seal circle, has larger elastic deformation space, can avoid the problem of wearing and tearing and jam, make its life-span life.In addition, the setting of silica gel investment precoat, makes elasticity abnormity wear-resistant seal circle more wear-resisting.
2. the setting of above-mentioned pressure transducer, by detecting the change of pressure in main cavity, thus monitors the sealing property of demarcation container and gives warning in advance.
3. the setting of above-mentioned returnable bottle, can reclaim waste gas, accomplishes the protection to environment and staff simultaneously.
4. above-mentioned pressure transducer and gas sensor are all connected with computing machine infrared radio, avoid the leakage problem that threading causes, and further ensure the sealing property of demarcating container.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of gas sensor calibration container of the present invention;
Fig. 2 shows the structural representation of elasticity of the present invention abnormity wear-resistant seal circle.
Wherein have:
1. main cavity;
2. cover plate on the left of; 21. gas inlet line;
3. cover plate on the right side of; 31. gas exit line;
4. pressure transducer;
5. elasticity abnormity wear-resistant seal circle;
51. hollow circular rings; 52. outer circles; Circle in 53.; 54. first circular array grooves; 55. second circular array grooves;
6. gas sensor;
7. returnable bottle.
In addition, in Fig. 2: h1 is the thickness of the equidirectional upper hollow circular ring of the first circular array groove; H2 is the thickness of the equidirectional upper hollow circular ring of the second circular array groove.
Embodiment
Below in conjunction with accompanying drawing and concrete better embodiment, the present invention is further detailed explanation.
As shown in Figure 1, a kind of gas sensor calibration container, the rear side cover plate 3 comprising the main cavity 1 of both ends open, be arranged on the left side cover plate 2 on the left of main cavity 1 and be arranged on the right side of main cavity 1.
Main cavity 1 is preferably fixed on stainless steel stent.
Gas inlet line 21 on the cover plate 2 of left side.
Right side cover plate 3 is provided with gas exit line 31, and the tail end of gas exit line is connected with returnable bottle 7, and gas exit line is also preferably provided with gas check valve.
Gas sensor 6 and pressure transducer 4 is provided with in main cavity 1.
Pressure transducer and gas sensor preferably adopt the following two kinds mode and are positioned at the computing machine demarcated outside container and are connected.
1. pressure transducer and gas sensor all be positioned at the computing machine infrared radio demarcated outside container and be connected.This sample loading mode, the leakage problem that threading can be avoided to cause, further ensures the sealing property of demarcating container.The application preferably adopts this kind of mode.
2. on the cover plate of right side, be provided with insulating disc, insulating disc is provided with the binding post run through, pressure transducer is all connected with computing machine by binding post with gas sensor.
Above-mentioned left side cover plate and rear side cover plate all by bolt and elasticity abnormity wear-resistant seal circle and main cavity be sealedly and fixedly connected.
As shown in Figure 2, the xsect of elasticity abnormity wear-resistant seal circle is hollow circular ring, this hollow circular ring comprises outer circle and interior circle, outer circle circumferentially offer several the first circular array grooves radially from outside to inside, interior circle circumferentially from inside to outside offer several the second circular array grooves radially, the length of each first circular array groove and each second circular array groove is all less than the thickness of equidirectional upper hollow circular ring, and the first circular array groove and the second circular array groove are staggered.
Further, each first circular array groove is preferably equal with the length of each second circular array groove.
Further, the surface of elasticity abnormity wear-resistant seal circle is coated with silica gel investment precoat.
More than describe the preferred embodiment of the present invention in detail; but the present invention is not limited to the detail in above-mentioned embodiment, within the scope of technical conceive of the present invention; can carry out multiple equivalents to technical scheme of the present invention, these equivalents all belong to protection scope of the present invention.
Claims (5)
1. a gas sensor calibration container, comprise the main cavity of both ends open, be separately positioned on the left side cover plate of main cavity both sides and rear side cover plate, gas inlet line on the cover plate of left side, right side cover plate is provided with gas exit line, gas sensor is provided with in main cavity, it is characterized in that: main cavity is also provided with pressure transducer, pressure transducer and gas sensor all be positioned at the computing machine demarcated outside container and be connected, described left side cover plate and rear side cover plate all by bolt and elasticity abnormity wear-resistant seal circle and main cavity be sealedly and fixedly connected, the xsect of described elasticity abnormity wear-resistant seal circle is hollow circular ring, this hollow circular ring comprises outer circle and interior circle, described outer circle circumferentially offer several the first circular array grooves radially from outside to inside, interior circle circumferentially from inside to outside offer several the second circular array grooves radially, the length of each first circular array groove and each second circular array groove is all less than the thickness of equidirectional upper hollow circular ring, and the first circular array groove and the second circular array groove are staggered, the tail end of described gas exit line is connected with returnable bottle.
2. gas sensor calibration container according to claim 1, is characterized in that: described pressure transducer and gas sensor all be positioned at the computing machine infrared radio demarcated outside container and be connected.
3. gas sensor calibration container according to claim 1, it is characterized in that: described right side cover plate is provided with insulating disc, insulating disc is provided with the binding post run through, described pressure transducer is all connected with computing machine by binding post with gas sensor.
4. gas sensor calibration container according to claim 1, is characterized in that: each described first circular array groove is equal with the length of each second circular array groove.
5. gas sensor calibration container according to claim 1, is characterized in that: the surface of described elasticity abnormity wear-resistant seal circle is coated with silica gel investment precoat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510850968.8A CN105353092A (en) | 2015-11-30 | 2015-11-30 | Gas sensor calibrating container |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510850968.8A CN105353092A (en) | 2015-11-30 | 2015-11-30 | Gas sensor calibrating container |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105353092A true CN105353092A (en) | 2016-02-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510850968.8A Pending CN105353092A (en) | 2015-11-30 | 2015-11-30 | Gas sensor calibrating container |
Country Status (1)
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| CN (1) | CN105353092A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106017741A (en) * | 2016-07-28 | 2016-10-12 | 无锡信大气象传感网科技有限公司 | Sealable optical fiber sensor temperature calibration device used for meteorology |
| CN106017740A (en) * | 2016-07-28 | 2016-10-12 | 无锡信大气象传感网科技有限公司 | Temperature sensor calibration equipment convenient for installation and maintenance |
| CN106017739A (en) * | 2016-07-28 | 2016-10-12 | 无锡信大气象传感网科技有限公司 | Temperature sensor calibration device |
| CN106225955A (en) * | 2016-07-28 | 2016-12-14 | 无锡信大气象传感网科技有限公司 | Adapt to the temperature calibration instrument of different meteorology Fibre Optical Sensor caliber |
| CN106225954A (en) * | 2016-07-28 | 2016-12-14 | 无锡信大气象传感网科技有限公司 | There is the calibrating device for temperature sensor of electromagnetic induction roller heating |
| CN106248253A (en) * | 2016-07-28 | 2016-12-21 | 无锡信大气象传感网科技有限公司 | The temperature sensor calibrator (-ter) unit of uniform temperature fields |
| CN106248252A (en) * | 2016-07-28 | 2016-12-21 | 无锡信大气象传感网科技有限公司 | The meteorology Fibre Optical Sensor temperature calibration instrument being easily installed and overhauling |
| US11933773B2 (en) | 2018-02-02 | 2024-03-19 | Honeywell International Inc. | System and method for gas reuse in testing of hazardous gas detecting instruments |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0260005A2 (en) * | 1986-08-26 | 1988-03-16 | The Governor And Company Of The Bank Of Scotland | Gas calibration method and apparatus |
| WO2001090608A1 (en) * | 2000-05-19 | 2001-11-29 | Michael Doyle | Improved ring seal |
| CN2668940Y (en) * | 2004-01-17 | 2005-01-05 | 汕头市粤东机械厂有限公司 | Sealing ring |
| CN201925476U (en) * | 2010-10-20 | 2011-08-10 | 侯玉杰 | Self-compensating gapless carbon ring seal |
| CN204065059U (en) * | 2014-09-03 | 2014-12-31 | 贵州电力试验研究院 | Gas sensor calibration container |
| CN204165964U (en) * | 2014-10-30 | 2015-02-18 | 长安大学 | A kind of device for calibration gas sensor |
-
2015
- 2015-11-30 CN CN201510850968.8A patent/CN105353092A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0260005A2 (en) * | 1986-08-26 | 1988-03-16 | The Governor And Company Of The Bank Of Scotland | Gas calibration method and apparatus |
| WO2001090608A1 (en) * | 2000-05-19 | 2001-11-29 | Michael Doyle | Improved ring seal |
| CN2668940Y (en) * | 2004-01-17 | 2005-01-05 | 汕头市粤东机械厂有限公司 | Sealing ring |
| CN201925476U (en) * | 2010-10-20 | 2011-08-10 | 侯玉杰 | Self-compensating gapless carbon ring seal |
| CN204065059U (en) * | 2014-09-03 | 2014-12-31 | 贵州电力试验研究院 | Gas sensor calibration container |
| CN204165964U (en) * | 2014-10-30 | 2015-02-18 | 长安大学 | A kind of device for calibration gas sensor |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106017741A (en) * | 2016-07-28 | 2016-10-12 | 无锡信大气象传感网科技有限公司 | Sealable optical fiber sensor temperature calibration device used for meteorology |
| CN106017740A (en) * | 2016-07-28 | 2016-10-12 | 无锡信大气象传感网科技有限公司 | Temperature sensor calibration equipment convenient for installation and maintenance |
| CN106017739A (en) * | 2016-07-28 | 2016-10-12 | 无锡信大气象传感网科技有限公司 | Temperature sensor calibration device |
| CN106225955A (en) * | 2016-07-28 | 2016-12-14 | 无锡信大气象传感网科技有限公司 | Adapt to the temperature calibration instrument of different meteorology Fibre Optical Sensor caliber |
| CN106225954A (en) * | 2016-07-28 | 2016-12-14 | 无锡信大气象传感网科技有限公司 | There is the calibrating device for temperature sensor of electromagnetic induction roller heating |
| CN106248253A (en) * | 2016-07-28 | 2016-12-21 | 无锡信大气象传感网科技有限公司 | The temperature sensor calibrator (-ter) unit of uniform temperature fields |
| CN106248252A (en) * | 2016-07-28 | 2016-12-21 | 无锡信大气象传感网科技有限公司 | The meteorology Fibre Optical Sensor temperature calibration instrument being easily installed and overhauling |
| US11933773B2 (en) | 2018-02-02 | 2024-03-19 | Honeywell International Inc. | System and method for gas reuse in testing of hazardous gas detecting instruments |
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Application publication date: 20160224 |