CN110412222A - A kind of isolation gas type gas concentration monitoring instrument - Google Patents
A kind of isolation gas type gas concentration monitoring instrument Download PDFInfo
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- CN110412222A CN110412222A CN201910789525.0A CN201910789525A CN110412222A CN 110412222 A CN110412222 A CN 110412222A CN 201910789525 A CN201910789525 A CN 201910789525A CN 110412222 A CN110412222 A CN 110412222A
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 164
- 238000002955 isolation Methods 0.000 title claims abstract description 26
- 238000012806 monitoring device Methods 0.000 claims abstract description 53
- 238000007789 sealing Methods 0.000 claims description 28
- 125000006850 spacer group Chemical group 0.000 claims description 10
- 238000013461 design Methods 0.000 abstract description 15
- 239000007789 gas Substances 0.000 description 100
- 241000208125 Nicotiana Species 0.000 description 10
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 10
- 238000009434 installation Methods 0.000 description 8
- XYFCBTPGUUZFHI-UHFFFAOYSA-N Phosphine Chemical compound P XYFCBTPGUUZFHI-UHFFFAOYSA-N 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 229910000073 phosphorus hydride Inorganic materials 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- UFLHIIWVXFIJGU-ARJAWSKDSA-N (Z)-hex-3-en-1-ol Chemical compound CC\C=C/CCO UFLHIIWVXFIJGU-ARJAWSKDSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 235000019506 cigar Nutrition 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000112 cooling gas Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
- G01N33/0031—General constructional details of gas analysers, e.g. portable test equipment concerning the detector comprising two or more sensors, e.g. a sensor array
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
- G01N33/0036—General constructional details of gas analysers, e.g. portable test equipment concerning the detector specially adapted to detect a particular component
- G01N33/0059—Avoiding interference of a gas with the gas to be measured
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/007—Arrangements to check the analyser
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Analytical Chemistry (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Physics & Mathematics (AREA)
- Combustion & Propulsion (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
The present invention discloses a kind of isolation gas type gas concentration monitoring instrument, including closed shell, control device and combination monitoring device, combining monitoring device includes the low accuracy monitoring device of wide range and small-range high precision monitor device, the low accuracy monitoring device of wide range and small-range high precision monitor device are mounted side by side on lower plate, control device is placed in closed enclosure interior, and the low accuracy monitoring device of wide range and small-range high precision monitor device are connect with control device signal respectively, the monitoring element of small-range high precision monitor device can not contacted with outer side gas under control of the control means.By the design of two range monitoring devices of size, pointedly gaseous environment can be monitored using the gas concentration monitoring component of different ranges under gas with various concentration conditions, it is applied widely, monitoring accuracy is high, can satisfy existing gas concentration monitoring high request, practical.
Description
Technical field
The present invention relates to technology of instrument and meter fields, more particularly to a kind of isolation gas type gas concentration monitoring instrument.
Background technique
The long-term storage of crops need to solve it is infested, mildew the problems such as.By taking tobacco leaf as an example, the process of tobacco
In in order to improve the quality of cigarette, it usually needs 1-3 natural alcoholization.During tobacco mellowing, there is a following three problem: one
It is infested to be that tobacco leaf is easy to；Second is that, because the variation of temperature, humidity is greatly, being easy mildew during Four seasons change；Third is that due to mistake
The air of amount contacts, and tobacco leaf color is easy to browning, deepens；Serious loss not only is caused to tobacco, it is reported that tobacco leaf alcohol
Loss after change is every year substantially in 0.8%-1% (even higher), one medium-sized cigar mill's direct economic loss caused by 1 year
Up to more than 2,000 ten thousand, but also the inside and outside quality of tobacco leaf is seriously affected, and then influences the quality of tobacco leaf deep processed product.Therefore, it is
It solves the above problems, needs to carry out stifling and its concentration value of real-time monitoring and storage with toxic gas during tobacco mellowing
The temperature and humidity in space.
Existing gas concentration monitoring device is when carrying out gas-monitoring or since range is larger, it is difficult to accurate prison
The tested gas concentration surveyed under low concentration state or gas under low concentration state can be monitored, but monitor range compared with
It is small, it is unable to satisfy use demand.In addition, existing gas concentration monitoring device is in running, air-tightness is unable to get feedback,
The case where knowing can not be but distinguished to be easy to appear failure of apparatus.
Summary of the invention
The object of the present invention is to provide a kind of isolation gas type gas concentration monitoring instruments, can not only change in gas concentration
Gas concentration is monitored under the biggish gaseous environment of range, and can guarantee the gas-monitoring precision under low concentration state.
To achieve the above object, the present invention provides following schemes:
The present invention provides a kind of isolation gas type gas concentration monitoring instrument, including closed shell, control device and combination prison
Device is surveyed, the closed shell includes face-piece, rear cover and lower plate, and the rear cover is connected to the rear portion of the face-piece, under described
Bottom plate is connected to the bottom of the face-piece；The combination monitoring device includes that the low accuracy monitoring device of wide range and small-range are high-precision
Monitoring device is spent, the low accuracy monitoring device of wide range and the small-range high precision monitor device are mounted side by side under described
On bottom plate, the control device is placed in the closed enclosure interior, and the low accuracy monitoring device of the wide range and described a small amount of
Journey high precision monitor device is connect with the control device signal respectively.Monitoring inside the small-range high precision monitor device
Element can not contacted with outer side gas under the control of the control device.
Optionally, the low accuracy monitoring device of the wide range is fixedly installed on the lower plate；The small-range is high-precision
Spending monitoring device includes piston component and piston cylinder, and the piston component is reciprocally set in the piston cylinder, institute
Piston cylinder is stated to be fixedly installed on the lower plate.
Optionally, the piston component includes piston shaft, small-range high precision monitor element and pressure cap, and the small-range is high
Accuracy monitoring element is set to the bottom of the piston shaft, and the top of the piston shaft is threadedly coupled with the pressure cap, and described
The top of piston shaft is connect by worm drive component with a driving motor behind the top surface of the pressure cap, the driving motor
For driving the piston shaft to move up and down, the driving motor is connect with the control device signal.
Optionally, the first sealing ring, and first sealing ring and the piston are arranged on the side wall of the piston shaft
The inner wall of cylinder contacts；The bottom end of the piston shaft is provided with the first gasket, and the upper surface of first gasket with it is described
The bottom end face contact of small-range high precision monitor element.
Optionally, air hole is provided on the side wall of the piston cylinder；It is close that the inside bottom of the piston cylinder is provided with second
Packing；The second sealing ring is provided between the piston cylinder and the lower plate.
Optionally, between the face-piece and the rear cover, between the face-piece and the lower plate and the wide range
Third sealing ring is provided between low accuracy monitoring device and the lower plate.
Optionally, the rear cover is preset with hanging hole.
The present invention is also preset with threaded mounting hole in the rear cover, and the threaded mounting hole is for installing cored monitoring group
Part, and when the rear cover installs the cored monitoring assembly, the combination monitoring device of the closed enclosure interior is removed；Institute
Cored monitoring assembly is stated to connect with the control device signal.
Optionally, the cored monitoring assembly includes hollow shaft and monitoring assembly, the front end of the hollow shaft and the spiral shell
Line mounting hole is threadedly coupled, and the monitoring assembly includes temperature-humidity monitoring component, spacer, the low accuracy monitoring element of wide range and end
Lid, the temperature-humidity monitoring component, the spacer and the low accuracy monitoring element of the wide range are sequentially arranged in the end cap,
The bottom end of the hollow shaft is connect with the nose threads of the end cap.
Optionally, the bottom outside wall of the hollow shaft offers multiple air inlets, and the air inlet is convenient for external gas
Body is discharged into and the temperature-humidity monitoring component contact.
The present invention achieves following technical effect compared with the existing technology:
Isolation gas type gas concentration monitoring instrument of the invention, it is reasonable in design, pass through two range monitoring dresses of size
The mounting design set can pointedly use the gas concentration monitoring component of different ranges under gas with various concentration conditions
Gaseous environment is monitored, allows the invention to carry out in high gas concentration using the monitoring element of the low precision of wide range
Effectively monitoring is effectively monitored in low gas concentration using the high-precision monitoring element of small-range, applied widely, monitoring
Precision is high, can satisfy existing gas concentration monitoring high request, avoids the occurrence of such gas concentration monitoring instrument in practical application
In the problem of being commonly encountered, be mainly used for monitoring phosphine concentration, temperature and humidity parameter in warehouse or cored, and by monitoring data without
Line is transmitted to data monitoring analysis platform, practical.
In addition, by the gas concentration of setting cored monitoring assembly real-time monitoring box house to be measured, then cooperate closed housing
The structure of body designs and in key position to the use of sealing element and the design of sealing structure, and the gas of device has been effectively ensured
Close property avoids air-tightness and is unable to get feedback so as to cause failure of apparatus and can not distinguish the case where knowing.
Detailed description of the invention
It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention
Example, for those of ordinary skill in the art, without any creative labor, can also be according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the schematic perspective view of present invention isolation gas type gas concentration monitoring instrument；
Fig. 2 is the decomposition view of Fig. 1；
Fig. 3 is the scheme of installation of present invention combination monitoring device；
Fig. 4 is the cross-sectional view 1 of small-range high precision monitor device of the present invention；
Fig. 5 is the cross-sectional view 2 of small-range high precision monitor device of the present invention；
Fig. 6 is the scheme of installation of closed shell and cored monitoring assembly in the present invention；
Fig. 7 is the main view of cored monitoring assembly in Fig. 6；
Fig. 8 is the decomposition view of cored monitoring assembly in Fig. 6；
Fig. 9 is the A-A sectional view of Fig. 7；
Wherein, appended drawing reference are as follows: 1, closed shell；2, face-piece；3, rear cover；4, lower plate；5, the low accuracy monitoring of wide range
Device；6, small-range high precision monitor device；7, piston component；8, piston cylinder；9, piston shaft；10, small-range high precision monitor
Element；11, pressure cap；12, the first sealing ring；13, the first gasket；14, the second gasket；15, the second sealing ring；16, third
Sealing ring；17, hanging hole；18, threaded mounting hole；19, cored monitoring assembly；20, hollow shaft；21, monitoring assembly；22, temperature and humidity
Monitoring component；23, spacer；24, the low accuracy monitoring element of wide range；25, end cap；26, control device；27, stomata；28, air inlet
Hole.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The object of the present invention is to provide a kind of isolation gas type gas concentration monitoring instruments, can not only change in gas concentration
Gas concentration is monitored under the biggish gaseous environment of range, and can guarantee the gas-monitoring precision under low concentration state.
Based on this, the present invention provides a kind of isolation gas type gas concentration monitoring instrument, including closed shell, control device and
Monitoring device is combined, the closed shell includes face-piece, rear cover and lower plate, and the rear cover is connected to the rear portion of the face-piece,
The lower plate is connected to the bottom of the face-piece；The combination monitoring device includes the low accuracy monitoring device of wide range and a small amount of
Journey high precision monitor device, the low accuracy monitoring device of wide range and the small-range high precision monitor device be mounted side by side in
On the lower plate, the control device is placed in the closed enclosure interior, and the low accuracy monitoring device of the wide range and institute
It states small-range high precision monitor device to connect with the control device signal respectively, inside the small-range high precision monitor device
Monitoring element can not contacted under the control of the control device with outer side gas.
Isolation gas type gas concentration monitoring instrument of the invention, it is reasonable in design, pass through two range monitoring dresses of size
The mounting design set can pointedly use the gas concentration monitoring component of different ranges under gas with various concentration conditions
Gaseous environment is monitored, allows the invention to carry out in high gas concentration using the monitoring element of the low precision of wide range
Effectively monitoring is effectively monitored in low gas concentration using the high-precision monitoring element of small-range, applied widely, monitoring
Precision is high, can satisfy existing gas concentration monitoring high request, avoids the occurrence of such gas concentration monitoring instrument in practical application
In the problem of being commonly encountered, be mainly used for monitoring phosphine concentration, temperature and humidity parameter in warehouse or cored, and by monitoring data without
Line is transmitted to data monitoring analysis platform, practical.
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing and specific real
Applying mode, the present invention is described in further detail.
Embodiment one:
As shown in Fig. 1~5, the present embodiment provides a kind of isolation gas type gas concentration monitoring instrument, including closed shell 1,
Control device 26 and combination monitoring device, closed shell includes face-piece 2, rear cover 3 and lower plate 4, and rear cover 3 is connected to face-piece 2
Rear portion, lower plate 4 are connected to the bottom of face-piece 2；Combination monitoring device includes that the low accuracy monitoring device 5 of wide range and small-range are high
Accuracy monitoring device 6, the low accuracy monitoring device 5 of wide range and small-range high precision monitor device 6 are mounted side by side in lower plate 4
On, control device 26 is placed in inside closed shell 1, and the low accuracy monitoring device 5 of wide range and small-range high precision monitor device 6
It is connect respectively with 26 signal of control device.It is filled by the control of control device 26 using the low accuracy monitoring of wide range in high gas concentration
5 are set effectively to be monitored, in low gas concentration, then by control device 26 control using small-range high precision monitor device 6 into
Row effectively monitoring.Meanwhile the monitoring element inside small-range high precision monitor device 6 can be under the control of control device 26 not
It is contacted with outer side gas, realizes the effect of isolation gas.
In this specific embodiment, as shown in figures 2-3, the low accuracy monitoring device 5 of wide range is fixedly installed in lower plate 4
On；Small-range high precision monitor device 6 includes piston component 7 and piston cylinder 8, and piston component 7 is reciprocally set to work
In plug cylinder 8, piston cylinder 8 is fixedly installed on lower plate 4.Wherein, installation groove is preferably offered on lower plate 4, it is above-mentioned a large amount of
The low accuracy monitoring device 5 of journey and piston cylinder 8 with the installation groove grafting realization and lower plate 4 then by being fixedly connected.
In the present embodiment, as seen in figures 3-5, piston component 7 includes piston shaft 9,10 and of small-range high precision monitor element
Pressure cap 11, small-range high precision monitor element 10 are set to the bottom of piston shaft 9, and the top of piston shaft 9 and 11 screw thread of pressure cap connect
Connect, the setting of pressure cap 11 make tested gas can not by the gap between small-range high precision monitor element 10 and piston shaft 9 into
Enter closed shell 1, and the top of piston shaft 9 is driven behind the top surface of pressure cap 11 by existing common worm drive component and one
Dynamic motor connection, driving motor for driving piston shaft 9 to move up and down, driving motor belong to a part of control device 26 and with
The connection of 26 signal of control device.Wherein, the monitoring element of wide range, and the prison are provided in the low accuracy monitoring device 5 of wide range
Element is surveyed to be constantly exposed in ambient atmos.When the low accuracy monitoring device 5 of wide range works, piston component 7 is in control device
7 piston cylinder, 8 bottom is moved under 26 control, and is abutted with its second gasket 14, and entire small-range high precision monitor member is made
Part 10 be tested it is gas-insulated；It is living when the low accuracy monitoring device 5 of wide range is unable to monitor the tested gas under low concentration state
Plug assembly 7 does ascending motion under the control of control device 26, makes the monitoring position exposure of small-range high precision monitor element 10
It starts to work in tested gaseous environment.
Further, as seen in figures 3-5, the first sealing ring 12 is arranged in the present embodiment on the side wall of piston shaft 9, and
First sealing ring 12 is contacted with the inner wall of piston cylinder 8, though the monitoring position of small-range high precision monitor element 10 be exposed to by
It surveys in gaseous environment, tested gas can not enter closed shell 1 by the gap between piston shaft 9 and piston cylinder 88, reach whole
The effect that other assemblies of a gas concentration monitoring instrument other than combining monitoring device do not contact with tested gas realizes isolation
The purpose of gas.The bottom end of piston shaft 9 is provided with the first gasket 13, and the upper surface of the first gasket 13 and small-range are high-precision
Spend the bottom end face contact of monitoring element 10.
Further, in this embodiment air hole is provided on the side wall of piston cylinder 8, when piston component 7 is moved to piston cylinder 8
When top, ambient atmos are entered in small-range high precision monitor element 10 by the air hole；Meanwhile such as the institute of Fig. 3~5
Show, the inside bottom of piston cylinder 8 is provided with the second gasket 14；It is set on installation contact surface between piston cylinder 8 and lower plate 4
It is equipped with the second sealing ring 15.
Further, in this embodiment on installation contact surface between face-piece 2 and rear cover 3, between face-piece 2 and lower plate 4
Installation contact surface on and the installation contact surface between the low accuracy monitoring device 5 of wide range and lower plate 4 on be provided with
Three sealing rings 16.Above-mentioned, the first sealing ring 12, the second sealing ring 15, third sealing ring 16, the first gasket 13 and second are close
The use of the sealing elements such as packing 14 and the design of sealing structure, have been effectively ensured the air-tightness of device entirety.
Further, in this embodiment rear cover 3 is preset with and is provided only with a hanging hole 17, for supervising above-mentioned gas concentration
It surveys instrument to be suspended on the wall in the space of being monitored, forms a kind of wall-mounted gas concentration monitoring instrument；Meanwhile for the ease of adjusting
Air pressure can also install the air pressure inside that air pressure inside regulating device carrys out regulating gas concentration monitor on rear cover 3, such as fixed
Cooling gas check valve.For the ease of the real-time monitoring to gas concentration monitoring instrument air-tightness, apply normal pressure using to device inside
Design, if there is a situation where seal failure, in device pressure decline, the seal shape of device can be learnt from the variation of air pressure
Condition.The air-tightness of closed shell 1 can directly be observed by being mounted on the barometric observation attachment of lower plate 4, can also pass through control
Gas-pressure component backstage on device 26 processed monitors.In the routine work of above-mentioned gas concentration monitor, there may be pressure
A small amount of the case where reducing, can press application in device by the way that fixed gas check valve is arranged in rear cover position in this case
Power.
The embodiment is further described below with reference to specific application method:
The present embodiment is a kind of wall-mounted gas concentration monitoring instrument, is that will completely cut off gas type gas concentration monitoring instrument to hang over institute
It monitors on the wall in space, guarantees that tested gas will not enter enclosure interior and corrode component by closed shell 1, by group
Close monitoring device gas concentration is measured, by 26 control combination monitoring device of control device operation and for gas it is dense
Degree monitor provides power supply, the data monitored is wirelessly transmitted to backstage.Shown in Fig. 1-5, completely cut off the gas concentration prison of gas
It surveys inside instrument and piston group is dragged by worm drive component by the driving motor in the control device 26 that is mounted in closed shell 1
Part 7 moves up and down, and piston component 7 is mounted in small-range high precision monitor device 6, and control device 26, which can according to need, to be passed through
Piston shaft 9 in driving motor control piston component 7 moves up and down in piston cylinder 8.When above-mentioned piston component 7 is moved to work
When the bottom of plug cylinder 8, bottom and the second gasket 14 are compressed, by the use of Seal Design and sealing element, so that outside gas
Body cannot be contacted with small-range high precision monitor element 10, be achieved the purpose that gas-insulated；On the contrary, when piston component 7 is moved to
When 8 top of piston cylinder, ambient atmos are entered in small-range high precision monitor element 10 by the air hole of 8 side wall of piston cylinder, small
Range high precision monitor element 10 is started to work.And the gas-monitoring position of the low accuracy monitoring device 5 of wide range always with the external world
It is kept in contact between gas.Arrangement of the combination monitoring device in seal casinghousing 1 has been identified more clearly in Fig. 3.
The wall-mounted application of gas concentration monitoring instrument, in daily storage, harmful gas concentration is higher in warehouse, combination prison
The low accuracy monitoring device 5 of wide range surveyed in device works；When there is personnel to pass in and out warehouse, gas concentration is lowered, and is at this moment needed
Small-range high precision monitor device 6 is wanted to intervene.This series of actions is exactly to lean on control device 26 to assist completing.Moreover, above-mentioned
Monitoring element inside the low accuracy monitoring device 5 of wide range is a kind of low precision gas concentration monitoring of the existing wide range in this field
Element, small-range high precision monitor element 10 are similarly a kind of existing monitoring element in this field, the specific structure composition of the two
Details are not described herein with working principle.
It is above-mentioned it is found that by the mounting designs of two range monitoring devices of size, can under gas with various concentration conditions,
Pointedly gaseous environment is monitored using the gas concentration monitoring component of different ranges, is allowed the invention in high gas
It is effectively monitored when bulk concentration using the monitoring element of the low precision of wide range, small-range high-precision is used in low gas concentration
Monitoring element effectively monitored, applied widely, monitoring accuracy is high, can satisfy existing gas concentration monitoring height and wants
It asks, avoids the occurrence of the problem of such gas concentration monitoring instrument is commonly encountered in practical applications, be mainly used for monitoring warehouse or packet
In-core phosphine concentration, temperature and humidity parameter, and monitoring data are wirelessly transmitted to data monitoring analysis platform, it is practical.
In addition, air pressure inside regulating device is also provided on above-mentioned gas concentration monitor, it not only can be to gas concentration
The pressure for being greater than standard atmospheric pressure is added inside monitor, and cooperates monitor overall construction design and in key position pair
The use of sealing element and the design of sealing structure, can effectively ensure that the air-tightness of device.
Embodiment two:
For the gas-monitoring demand being directed under different application environment, as shown in fig. 6, the present embodiment is also set on rear cover 3
A threaded mounting hole 18 is set, threaded mounting hole 18 is for installing cored monitoring assembly 19.
As shown in Fig. 6~9, cored monitoring assembly 19 includes hollow shaft 20 and monitoring assembly 21, and the front end of hollow shaft 20 is excellent
Choosing is threadedly coupled with threaded mounting hole 18, and is provided with ring structure between the front end of hollow shaft 20 and threaded mounting hole 18,
As shown in figure 8, being provided with two layers of sealing between hollow shaft 20 and threaded mounting hole 18；As shown in figs. 7-9, above-mentioned monitoring assembly
21 include temperature-humidity monitoring component 22, spacer 23, the low accuracy monitoring element 24 of wide range and end cap 25, the low accuracy monitoring of wide range
Element 24, spacer 23 and temperature-humidity monitoring component 22 are successively set on inside end cap 25, behind 25 front end of end cap and hollow shaft 20
End is threadedly coupled, and the present embodiment is preferably coated with adhesive structure in the rear end face of the front end face of end cap 25 and hollow shaft 20,
Enhance the air-tightness and connectivity robustness of 19 shell of cored monitoring assembly.As shown in figure 8, the low accuracy monitoring element 24 of wide range
Front end is provided with threading long tube, and spacer 23 and temperature-humidity monitoring component 22 are sequentially sleeved in the outside of threading long tube, wherein spacer 23
For isolation material, it is arranged between temperature-humidity monitoring component 22 and the low accuracy monitoring element 24 of wide range, it is therefore an objective to be isolated warm and humid
The accuracy monitoring element 24 low with wide range of monitoring component 22 is spent, isolation temperature-humidity monitoring component 22 precision prison low with wide range is avoided
It surveys conductive between element 24.After end cap 25 and hollow shaft 20 tighten connection, temperature-humidity monitoring component 22, spacer 23 and a large amount of
The low accuracy monitoring element 24 of journey successively offsets from beginning to end, and temperature-humidity monitoring component 22 is just against on the bottom face of hollow shaft 20, greatly
The bottom of the low accuracy monitoring element 24 of range is against the bottom end of end cap 25, and the bottom of end cap 25 offers a stomata 27.It is above-mentioned
Temperature-humidity monitoring component 22 and the low accuracy monitoring element 24 of wide range connect with 26 signal of control device inside closed shell 1
It connects.
Further, as shown in figure 8, the bottom outside wall of hollow shaft 20 is uniformly provided with multiple air inlets 28, due to sky
Mandrel 20 is hollow structure and both ends open, and the intracorporal gas of case to be measured can be entered inside hollow shaft 20 by the air inlet 28
And contacted with the monitoring component in temperature-humidity monitoring component 22, it is carried out convenient for gas of the temperature-humidity monitoring component 22 to inside to be measured
Temperature-humidity monitoring.As shown in figure 8, temperature-humidity monitoring component 22 is preferably disc-shaped structure, it is a kind of existing temperature-humidity monitoring
Details are not described herein for device, specific structure and working principle.
Due to installing and using for cored monitoring assembly 19, the present embodiment is by the usage mode of gas concentration monitoring instrument by wall hanging
Formula changes in order to which cored monitors formula.The cored monitoring formula purposes of gas concentration monitoring instrument is the gas of detected space in monitoring case body
Concentration and temperature and humidity.
The present embodiment is further described below in conjunction with specific application method:
In the present embodiment, monitoring device is combined with eliminating inside the closed shell 1 of the connection of cored monitoring assembly 19, other
Structure is then the same as example 1, and details are not described herein；Wide range is set in monitoring assembly 21 in cored monitoring assembly 19
Low accuracy monitoring element 24 is mainly used for treating and surveys the monitoring that box house is tested gas concentration and temperature and humidity, specific embodiment party
Formula is: being inserted into cabinet to be measured by the needle-shaped core bar in a casing and casing, then core bar is removed, above-mentioned cored is supervised
The cored monitoring assembly 19 of survey formula gas concentration monitoring instrument is inserted into sleeve, can be to gas concentration and temperature in tested cabinet
Humidity is monitored, and cored monitoring assembly 19 is located at the inside of cabinet to be measured at this time, and closed shell 1 hang over cabinet to be measured it is outer and
It is bonded with the outer wall of cabinet to be measured, the intracorporal gas of case to be measured is entered in end cap 25 by stomata 27 and precision low with wide range prison
It surveys element 24 to contact, monitors the intracorporal gas concentration of case to be measured convenient for the low accuracy monitoring element 24 of wide range；Meanwhile cabinet to be measured
Interior gas is entered in hollow shaft 20 by air inlet 28 to be contacted with the monitoring component in temperature-humidity monitoring component 22, convenient for warm and humid
It spends monitoring component 22 and temperature-humidity monitoring is carried out to the gas of inside to be measured.It can be dense in gas using above-mentioned gas concentration monitor
Accurate measurements gas concentration under the biggish gaseous environment of variation range is spent, and can guarantee the monitoring accuracy under low concentration state.
In addition, other assemblies of the above-mentioned gas concentration monitor other than monitoring element do not contact with tested gas.
It is above-mentioned it is found that the present embodiment by setting cored monitoring assembly, cooperate closed shell structure design and closing
The air-tightness of device has been effectively ensured to the use of sealing element and the design of sealing structure in key position, avoid air-tightness without
Method obtains feeding back so as to cause failure of apparatus and can not distinguish the case where knowing.
It should be noted that it is obvious to a person skilled in the art that the present invention is not limited to the above exemplary embodiments
Details can realize this in other specific forms and without departing from the spirit or essential characteristics of the present invention
Invention.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, the present invention
Range be indicated by the appended claims rather than the foregoing description, it is intended that the meaning that the equivalent requirements of the claims will be fallen in
It is included within the present invention, should not be treated any reference in the claims as involved by limitation with all changes in range
Claim.
Specific examples are applied in the present invention, and principle and implementation of the present invention are described, above embodiments
Illustrate to be merely used to help understand method and its core concept of the invention；At the same time, for those skilled in the art, according to
According to thought of the invention, there will be changes in the specific implementation manner and application range.In conclusion the content of the present specification
It should not be construed as limiting the invention.
Claims (10)
1. a kind of isolation gas type gas concentration monitoring instrument, it is characterised in that: including closed shell, control device and combination monitoring
Device, the closed shell include face-piece, rear cover and lower plate, and the rear cover is connected to the rear portion of the face-piece, the bottom
Plate is connected to the bottom of the face-piece；The combination monitoring device includes the low accuracy monitoring device of wide range and small-range high-precision
Monitoring device, the low accuracy monitoring device of wide range and the small-range high precision monitor device are mounted side by side in the bottom
On plate, the control device is placed in the closed enclosure interior, and the low accuracy monitoring device of the wide range and the small-range
High precision monitor device is connect with the control device signal respectively, the monitoring member inside the small-range high precision monitor device
Part can not contacted with outer side gas under the control of the control device.
2. isolation gas type gas concentration monitoring instrument according to claim 1, it is characterised in that: the low precision of the wide range
Monitoring device is fixedly installed on the lower plate；The small-range high precision monitor device includes piston component and piston cylinder,
The piston component is reciprocally set in the piston cylinder, and the piston cylinder is fixedly installed on the lower plate.
3. isolation gas type gas concentration monitoring instrument according to claim 2, it is characterised in that: the piston component includes
Piston shaft, small-range high precision monitor element and pressure cap, the small-range high precision monitor element are set to the piston shaft
Bottom, the top of the piston shaft are threadedly coupled with the pressure cap, and the top surface of the pressure cap is run through on the top of the piston shaft
It is connect afterwards by worm drive component with a driving motor, the driving motor is for driving the piston shaft to move up and down, institute
Driving motor is stated to connect with the control device signal.
4. isolation gas type gas concentration monitoring instrument according to claim 3, it is characterised in that: the side wall of the piston shaft
On be arranged with the first sealing ring, and first sealing ring is contacted with the inner wall of the piston cylinder；The bottom end of the piston shaft is set
It is equipped with the first gasket, and the upper surface of first gasket and the bottom face of the small-range high precision monitor element connect
Touching.
5. isolation gas type gas concentration monitoring instrument according to claim 2, it is characterised in that: the side wall of the piston cylinder
On be provided with air hole；The inside bottom of the piston cylinder is provided with the second gasket；Between the piston cylinder and the lower plate
It is provided with the second sealing ring.
6. isolation gas type gas concentration monitoring instrument according to claim 1, it is characterised in that: the face-piece and it is described after
Between lid, between the face-piece and the lower plate and between the low accuracy monitoring device of the wide range and the lower plate
It is provided with third sealing ring.
7. isolation gas type gas concentration monitoring instrument according to claim 1, it is characterised in that: the rear cover is also preset with
Hanging hole.
8. isolation gas type gas concentration monitoring instrument according to claim 1, it is characterised in that: the rear cover is also preset with
Threaded mounting hole, the threaded mounting hole work as the rear cover and install the cored monitoring group for installing cored monitoring assembly
When part, the combination monitoring device of the closed enclosure interior is removed；The cored monitoring assembly and the control device signal
Connection.
9. isolation gas type gas concentration monitoring instrument according to claim 8, it is characterised in that: the cored monitoring assembly
Including hollow shaft and monitoring assembly, the front end of the hollow shaft is threadedly coupled with the threaded mounting hole, the monitoring assembly packet
Include the low accuracy monitoring element of temperature-humidity monitoring component, spacer, wide range and end cap, the temperature-humidity monitoring component, the spacer
Accuracy monitoring element low with the wide range is sequentially arranged in the end cap, before the bottom end of the hollow shaft and the end cap
End is threadedly coupled.
10. isolation gas type gas concentration monitoring instrument according to claim 9, it is characterised in that: the bottom of the hollow shaft
Portion's lateral wall offers multiple air inlets.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910789525.0A CN110412222A (en) | 2019-08-26 | 2019-08-26 | A kind of isolation gas type gas concentration monitoring instrument |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910789525.0A CN110412222A (en) | 2019-08-26 | 2019-08-26 | A kind of isolation gas type gas concentration monitoring instrument |
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| CN201910789525.0A Pending CN110412222A (en) | 2019-08-26 | 2019-08-26 | A kind of isolation gas type gas concentration monitoring instrument |
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| CN112730519A (en) * | 2020-12-21 | 2021-04-30 | 哈尔滨工业大学 | Portable methane trace leakage quantitative detector and detection method thereof |
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