CN209264679U - A kind of multistation gas detecting instrument verification machine - Google Patents
A kind of multistation gas detecting instrument verification machine Download PDFInfo
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- CN209264679U CN209264679U CN201821887361.2U CN201821887361U CN209264679U CN 209264679 U CN209264679 U CN 209264679U CN 201821887361 U CN201821887361 U CN 201821887361U CN 209264679 U CN209264679 U CN 209264679U
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Abstract
The utility model discloses a kind of multistation gas detecting instrument verification machines, including cabinet, examine and determine station, feeder and monitoring device, the cabinet includes sequentially connected calibrating cabinet, control cabinet and air tower, the feeder includes gas supply mechanism, air compressor, gas circuit switching mechanism and gas circuit distribution circuit, the gas supply mechanism includes gas cylinder Article holding box and air feed bottle, the monitoring device includes microcontroller, industrial personal computer and display, the first pressure sensor that the air feed bottle outlet pressure is detected, second pressure sensor, flow sensor and gas sensor.The utility model structure is simple, energy is easy, the verification process of multiple gas detecting instruments is rapidly completed, and adapts to the needs that current high-volume gas detecting instrument is quickly examined, improves checkability, reduce labor intensity, realizes and test process automation.
Description
Technical field
The utility model belongs to gas detecting instrument Calibration Technology field, examines more particularly, to a kind of multistation gas detecting instrument
Determine machine.
Background technique
It is with the continuous development of society and progressive, it is protected to adapt to the development of current oil chemical engineering industry and safety in production, environment
The requirement of shield, various provisions of laws and regulations of the country in terms of production safety, occupational health and environmental protection will be increasingly tighter.For
Carry out fuel gas and toxic gas leak detection and monitoring management work, the industries such as ancestral petroleum portion, former Ministry of Coal Industry, former the Ministry of Chemical Industry
Authorities and China State Bureau of Quality and Technical Supervision have put into effect some and imflammable gas and toxic gas leak detection and prison
The relevant codes and standards of control system.
Gas detecting instrument is a kind of gas leakage Concentration Testing instrument and meter, mainly detects environment using gas sensor
Present in gas concentration.Gas detecting instrument is widely used in each row such as petrochemical industry, safety and environmental protection, chemical industry in recent years
Industry, the use especially in petrochemical industry are more extensive.Changqing oilfields reinforce the control and monitoring to danger zone, and oil gas region is all
It is mounted with stationary gas detector, while external unit in charge of construction's field operation being required to be equipped with portable gas detector.Gas
Detector plays a crucial role to prevention catastrophic failure.Gas detecting instrument once occur display mistake or numerical bias compared with
Big situation will then can cause casualties, environmental pollution, the substantial industrials accident such as stop work and production, and cause people's life safe
It is damaged with national wealth.Therefore, whether gas detecting instrument works normally the property safety of direct relation enterprise and scene is made
The life security of industry personnel.
The calibrating for the first time and gas detecting instrument periodic calibration work of the generally new purchase gas detecting instrument of the calibrating of gas detecting instrument
Make, but the country is still in manual hand manipulation for the calibrating of gas detecting instrument at present examines and determine the stage.Although calibrating can manually
Process to complete the verification task of detector, but during this requires single movement, and it is fine to examine and determine a gas detecting instrument,
If being then difficult to meet demand such as large batch of check and correction.In addition, the accurate of calibrating is not only difficult to ensure in verification process manually
Degree, for certain toxic gas calibrating when, the even more threat to staff's life security, in nowadays petrochemical enterprise
It produces under severe security situation, this mode has been difficult to complete the needs of verification task.
Therefore, nowadays lack a kind of multistation gas detecting instrument calibrating instrument, realize the calibrating of multiple gas detecting instruments,
The efficiency of gas detecting instrument calibrating is improved, guarantees that required gas detecting instrument is marched into the arena installation in time, meets the progress of engineering construction, and
Guarantee the accuracy of gas detecting instrument calibrating, reduces labor intensity.
Utility model content
The technical problem to be solved by the utility model is in view of the deficiency of the prior art, provide a kind of multiplexing
Position gas detecting instrument verification machine, reasonable, the easy to operate and using effect of design is good, realizes the inspection to multiple gas detecting instruments
It is fixed, gas detecting instrument calibrating efficiency is improved, guarantees that required gas detecting instrument is marched into the arena installation in time, meets the progress of engineering construction,
And guarantee the accuracy of gas detecting instrument calibrating, and labor intensity is reduced, it is practical.
In order to solve the above technical problems, the technical solution adopted in the utility model is: a kind of multistation gas detecting instrument inspection
Determine machine, it is characterised in that: including cabinet, the calibrating station for being mounted on the cabinet and being examined and determine multiple gas detecting instruments
Be mounted in the cabinet and for the feeder of multiple gas detecting instruments ventilations, and to the calibrating station and institute
State the monitoring device that feeder is monitored；
The cabinet includes sequentially connected calibrating cabinet, control cabinet and air tower, and the calibrating cabinet includes lower cabinet body and peace
Test cabinet body on the lower cabinet body is provided with the hermatic door that can be opened and closed on the test cabinet body, the calibrating station
Quantity be it is multiple, multiple calibrating stations are respectively positioned in the test cabinet body, be provided at the calibrating station camera, divide
Liquid crystal display, power supply interface, electric current input interface, alarm module and air feed interface connect promising institute on the air feed interface
State the ventilation member of gas detecting instrument ventilation；
The feeder include the gas supply mechanism of calibrating gas is provided for the air feed interface, be that the air feed interface mentions
The gas circuit switching mechanism that is connect for the air compressor of air, with the gas supply mechanism with the air compressor and with the gas
The gas circuit distribution circuit that road switching mechanism is connected and connect respectively with multiple air feed interfaces, the gas supply mechanism include setting
In the air tower gas cylinder Article holding box and multiple air feed bottles being mounted in the gas cylinder Article holding box and contain calibrating gas,
The air feed bottle is connect by air supply pipe with the gas circuit switching mechanism, is provided with pressure reducing valve on the air supply pipe；
The monitoring device includes microcontroller, industrial personal computer and the display to connect with industrial personal computer, the microcontroller
Data communication is carried out with industrial personal computer, the input of the microcontroller, which is terminated with, detects the outlet pressure of the air feed bottle
First pressure sensor, connects described supply the second pressure sensor detected to pressure after air feed bottle decompression
The flow sensor that gas supply flow is detected and the gas sensor being arranged in the air tower, the gas circuit switching mechanism
It is controlled by the microcontroller.
Above-mentioned a kind of multistation gas detecting instrument verification machine, it is characterised in that: under the width of the test cabinet body is less than
The width of cabinet body, the gas detecting instrument are mounted on the bottom of the test cabinet body, and both ends, which are provided with, in the test cabinet body stretches
Contracting bar, the fixing end of the telescopic rod are fixedly mounted on bottom in test cabinet body, and the movable end and hermatic door of the telescopic rod are solid
It is fixed to connect, knob is provided on the hermatic door.
Above-mentioned a kind of multistation gas detecting instrument verification machine, it is characterised in that: the gas circuit switching mechanism includes gas
Switching valve, the first solenoid valve block being mounted between air feed bottle and gas switching valve and it is mounted on gas switching valve and air feed interface
Between second solenoid valve group, multiple air supply pipes connect with the entrance of gas switching valve, and the air compressor passes through sky
Gas appendix is connect with the entrance of gas switching valve, and first solenoid valve block is located on the air supply pipe；
The gas circuit distribution circuit includes the main channel and the multiple and main ventilation connecting with gas switching valve outlet
Branch's snorkel of pipe connection, branch's snorkel are connect with air feed interface, and the second solenoid valve group includes multiple difference
Ventilation control solenoid valve on multiple branch's snorkels is set, and the flow sensor is located on branch's snorkel, institute
It states the first solenoid valve block and ventilation control solenoid valve is controlled by microcontroller；
The ventilation member include the external snorkel being connected on the air feed interface and connect with external snorkel and
Cover on the gas hood on the gas detecting instrument.
Above-mentioned a kind of multistation gas detecting instrument verification machine, it is characterised in that: the control cabinet includes lower control cabinet body
With the display operating panel being arranged on the lower control cabinet body, the industrial personal computer is located at the lower control cabinet body, the display
Device is located on display operating panel, and manual operation key module is provided on the display operating panel, and the manual operation is pressed
Key module includes that high concentration gas supply button, middle concentration gas supply button, low concentration gas supply button and air are passed through key, described highly concentrated
Degree gas supply button, middle concentration gas supply button, low concentration gas supply button and air be passed through the output end of key with microcontroller
Input terminal connects；The industrial personal computer is connected by communication module with microcontroller.
Above-mentioned a kind of multistation gas detecting instrument verification machine, it is characterised in that: the air tower includes lower box, setting
The upper box being connected on the lower box and with the lower box is provided with pressure display panel and manually on the upper box
Operation panel is provided with pressure digital display meter group on the pressure display panel, manual voltage regulation is arranged on the manual operation panel
Knob；
The manual voltage regulation knob includes high concentration adjusting pressuring knob, middle concentration pressure regulation button and low concentration pressure regulation button.
Above-mentioned a kind of multistation gas detecting instrument verification machine, it is characterised in that: the lower cabinet body includes bottom plate, is mounted on
Cabinet framework, the calibrating cabinet front door being mounted in the cabinet framework on the bottom plate and the drawer placed for testing tool,
Heat release hole is provided in the cabinet framework；
The alarm module include be arranged in it is each it is described calibrating station at flash lamp, the input terminal of the flash lamp with
The output end of microcontroller connects, and the power supply interface includes voltage output interface and ground interface, at the calibrating station also
It is provided with the alarm detection interface that communication interface is connected with for sound-light alarm detection module, the sound-light alarm detection module is located at
The bottom of the test cabinet body, the communication interface includes USB interface, RS-232C interface and RS-485 interface；
The camera is mounted at the calibrating station by hose, and the camera is located at the upper of gas detecting instrument
Side.
A kind of above-mentioned multistation gas detecting instrument verification machine, it is characterised in that: it is provided with air draft mechanism in the cabinet,
The air draft mechanism includes the first blower being arranged in the air tower, the second blower and is threaded through in the cabinet and stretches out
The exhaust pipe of the cabinet, first blower and the second blower are connect with the exhaust pipe, first blower with it is described
It is provided with the first Electric air valve between exhaust pipe, is provided with the second Electric air valve between second blower and the exhaust pipe,
First blower, the second blower, the first Electric air valve and the second Electric air valve are controlled by microcontroller.
Above-mentioned a kind of multistation gas detecting instrument verification machine, it is characterised in that: be provided with air feed bottle in the air tower
The slipping mechanism of Article holding box sliding, the slipping mechanism include the sliding rail being arranged in the air tower bottom and are slidably mounted on
The sliding block being fixedly connected on sliding rail and with gas cylinder Article holding box bottom, the length of the sliding rail are less than the width of the air tower.
A kind of above-mentioned multistation gas detecting instrument verification machine, it is characterised in that: the quantity of the air feed bottle be three, three
A air feed bottle is respectively that low concentration air feed bottle, middle concentration air feed bottle and high concentration air feed bottle, the quantity of the air supply pipe are
Three, three air supply pipes are respectively that the first air supply pipe connecting with the low concentration air feed bottle and the middle concentration supply
Second air supply pipe of bottle connection and the third air supply pipe connecting with the high concentration air feed bottle, first solenoid valve block include setting
The first solenoid valve on the first air supply pipe, the second solenoid valve being arranged on second air supply pipe and setting are set described the
Third solenoid valve on three air supply pipes, first solenoid valve, second solenoid valve and third solenoid valve are by the microcontroller
It is controlled.
Compared with the prior art, the utility model has the following advantages:
1, used cabinet includes calibrating cabinet, control cabinet and air tower, and calibrating cabinet is convenient for ventilation and gas detecting instrument
Installation, in addition control cabinet facilitates the installation of the monitoring devices such as industrial personal computer and liquid separation crystal display screen, and setting air tower is different for containing
The feeder of concentration standard gas is installed, and overall mechanism is compact, small in size.
2, the calibrating of multiple gas detecting instruments is able to satisfy in used calibrating station, energy is easy, multiple gas are rapidly completed
The calibrating of body detector adapts to the needs of current high-volume gas detecting instrument rapid verification.
3, camera is both set in used calibrating station, is for the concentration show value to portable gas detector
It is acquired, electric current input interface is set, is in order to which the current signal to stationary gas detector is acquired, to realize
The acquisition of the concentration determination value of gas detecting instrument adapts to the needs of all kinds of gas detecting instrument rapid verifications.
4, gas supply mechanism and air compressor are set in used feeder, on the one hand, are to be cut by gas circuit
Various concentration calibrating gas in gas supply mechanism is passed through air feed interface by structure of changing planes, and realizes the calibrating to gas detecting instrument；It is another
Aspect, be in order to be passed through air to air feed interface by air compressor when switching various concentration calibrating gas, will be described
Endotracheal residual gas of ventilating excludes completely, to guarantee the accuracy of gas switching, improves calibrating accuracy.
5, it is provided with hermatic door on used calibrating station, is on the one hand in verification process that station will be examined and determine close
Envelope, avoids toxic calibrating gas from entering in atmosphere, damages to staff's person, is to examine in order to prevent on the other hand
During fixed, loine pressure is out of control, causes to be flown out by gas detecting instrument and hurt sb.'s feelings, can real time inspection calibrating station state and
It can be reduced failure damage；Then there is in order to which noise can be separated when gas detecting instrument alarm in gas detecting instrument verification process, subtract
The propagation of few noise.
6, used monitoring device high degree of automation, the gas detecting instrument far from tested calibrating, improves personnel safety,
And verification process is easily controllable, avoids manually adjusting flow, turns opening manually or switching gas supply, labor intensity
It is small, and the acquisition of calibrating data is realized by calibrating station and is sent to industrial personal computer and is handled, with it is easy, be rapidly completed it is multiple
The verification process of gas detecting instrument, calibrating efficiency is high, improves gas detecting instrument calibrating efficiency.
In conclusion the utility model is designed reasonably, easy to operate and using effect are good, realize to multiple gas detecting instruments
Calibrating, improve gas detecting instrument calibrating efficiency, guarantee that required gas detecting instrument is marched into the arena installation in time, meet engineering construction into
Degree, and guarantee the accuracy of gas detecting instrument calibrating, labor intensity is reduced, it is practical.
Below by drawings and examples, the technical solution of the utility model is described in further detail.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the main view of Fig. 1 (removing feeder).
Fig. 3 is the structural schematic diagram of the utility model feeder.
Fig. 4 is the main view of Fig. 3 (removing air tower front door).
Fig. 5 is the left view that Fig. 3 removes left plate.
Fig. 6 is the pipeline structure schematic diagram of the utility model feeder.
Fig. 7 is the schematic block circuit diagram of the utility model.
Description of symbols:
Cabinet body is controlled under 1-；2- examines and determine cabinet front door；3- heat release hole；
4- lower cabinet body；5- telescopic rod；6- knob；
7- tests cabinet body；8- hermatic door；9- display operating panel；
10- drawer；11- display；12- air is passed through key；
13- low concentration supplies button；Concentration supplies button in 14-；15- high concentration supplies button；
16- camera；17- liquid separation crystal display screen；18- air feed interface；
19- flash lamp；20- voltage output interface；21- electric current input interface；
22- ground interface；23- lower box；24- upper box；
25- sliding rail；26- sliding block；27- air tower front door；
28- gas sensor；29- air tower back door；30- air compressor；
31- flush type handle；32- air supply pipe；33- pressure reducing valve；
33-1- first pressure digital display meter；33-2- second pressure digital display meter；
34- A-frame；35- mounting plate；The first solenoid valve of 35-1-；
35-2- second solenoid valve；35-3- third solenoid valve；36- microcontroller；
37- industrial personal computer；38- manual voltage regulation knob；38-1- high concentration adjusting pressuring knob；
Concentration pressure regulation button in 38-2-；38-3- low concentration pressure regulation button；
39- first pressure sensor；40- second pressure sensor；41- flow sensor；
42- air appendix；43- gas switching valve；44- main channel；
45- branch snorkel；46- alarm detection interface；47- communication interface；
48- communication module；49- sound-light alarm detection module；50- gas detecting instrument；
51- gas hood；The external snorkel of 52-；54- gas cylinder Article holding box；
55- air feed bottle；56- hose；57- blower；
56- Electric air valve；57- power source communications installing port；58- ventilation interface tube；
59- exhaust pipe mouth；The first blower of 60-；The second blower of 61-；
The second Electric air valve of 62-；The total liquid crystal display of 63-；64- evagination handle；
65- ventilation control solenoid valve；The first Electric air valve of 66-；
Specific embodiment
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4 and Fig. 7, the utility model includes cabinet, is mounted on the cabinet and to more
The calibrating station and be mounted in the cabinet and logical for multiple gas detecting instruments 50 that a gas detecting instrument 50 is examined and determine
The feeder of gas, and to the monitoring device that the calibrating station and the feeder are monitored；
The cabinet includes sequentially connected calibrating cabinet, control cabinet and air tower, and the calibrating cabinet includes lower cabinet body 4 and peace
Test cabinet body 7 on the lower cabinet body 4 is provided with the hermatic door 8 that can be opened and closed, the calibrating work on the test cabinet body 7
Position quantity be it is multiple, multiple calibrating stations are respectively positioned in the test cabinet body 7, are provided with camera shooting at the calibrating station
First 16, liquid separation crystal display screen 17, power supply interface, electric current input interface 21, alarm module and air feed interface 18, the air feed interface
The ventilation member that the promising gas detecting instrument 50 is ventilated is connected on 18；
The feeder includes providing the gas supply mechanism of calibrating gas for the air feed interface 18, being the air feed interface
The air compressor 30 of 18 offer air, the gas circuit switching mechanism being connect with the gas supply mechanism with the air compressor 30
The gas circuit distribution circuit for connecting with the gas circuit switching mechanism and being connect respectively with multiple air feed interfaces 18, the gas supply
Mechanism includes the gas cylinder Article holding box 54 being arranged in the air tower and multiple are mounted in the gas cylinder Article holding box 54 and contain
The air feed bottle 55 of calibrating gas, the air feed bottle 55 are connect by air supply pipe 32 with the gas circuit switching mechanism, the air supply pipe
Pressure reducing valve 33 is provided on 32；
The monitoring device includes microcontroller 36, industrial personal computer 37 and the display 11 to connect with industrial personal computer 37, described
Microcontroller 36 and industrial personal computer 37 carry out data communication, and the input of the microcontroller 36 is terminated with going out to the air feed bottle 55
First pressure sensor 39 that mouthful pressure is detected, the second pressure detected to pressure after the air feed bottle 55 decompression pass
Sensor 40, the flow sensor 41 that the gas supply flow of the air feed interface 18 is detected and it is arranged in the air tower
Gas sensor 28, the gas circuit switching mechanism controlled by the microcontroller 36.
In the present embodiment, the width of the test cabinet body 7 is less than the width of lower cabinet body 4, and the gas detecting instrument 50 is installed
In the bottom of the test cabinet body 7, both ends are provided with telescopic rod 5 in the test cabinet body 7, and the fixing end of the telescopic rod 5 is solid
Dingan County bottom, movable end of the telescopic rod 5 in test cabinet body 7 are fixedly connected with hermatic door 8, set on the hermatic door 8
It is equipped with knob 6.
As shown in fig. 6, the gas circuit switching mechanism includes gas switching valve 43, is mounted on air feed bottle 55 in the present embodiment
The first solenoid valve block between gas switching valve 43 and the second electricity being mounted between gas switching valve 43 and air feed interface 18
Magnet valve group, multiple air supply pipes 32 are connect with the entrance of gas switching valve 43, and the air compressor 30 passes through air gas transmission
Pipe 42 is connect with the entrance of gas switching valve 43, and first solenoid valve block is located on the air supply pipe 32；
The main channel 44 and the multiple and master that the gas circuit distribution circuit includes and the outlet of gas switching valve 43 connects
Branch's snorkel 45 that snorkel 44 connects, branch's snorkel 45 are connect with air feed interface 18, the second solenoid valve group
Solenoid valve 65 is controlled including multiple ventilations being separately positioned on multiple branch's snorkels 45, the flow sensor 41 is located at institute
It states on branch's snorkel 45, first solenoid valve block and ventilation control solenoid valve 65 are controlled by microcontroller 36；
The ventilation member include the external snorkel 52 being connected on the air feed interface 18 and with external snorkel 52
It connects and covers on the gas hood 51 on the gas detecting instrument 50.
In the present embodiment, the control cabinet includes the lower display for controlling cabinet body 1 and being arranged on the lower control cabinet body 1
Operation panel 9, the industrial personal computer 37 are located at the lower control cabinet body 1, and the display 11 is located on display operating panel 9, institute
State and be provided with manual operation key module on display operating panel 9, the manual operation key module include high concentration gas supply by
Button 15, middle concentration gas supply button 14, low concentration gas supply button 13 and air are passed through key 12, the high concentration gas supply button 15,
The output end that middle concentration gas supply button 14, low concentration gas supply button 13 and air are passed through key 12 is defeated with microcontroller 36
Enter end to connect；The industrial personal computer 37 is connected by communication module 48 with microcontroller 36.
As shown in Fig. 3, Fig. 4 and Fig. 5, in the present embodiment, the air tower includes lower box 23, is arranged in the lower box
The upper box 24 being connected on 23 and with the lower box 23 is provided with pressure display panel and manually behaviour on the upper box 24
Make panel, pressure digital display meter group is provided on the pressure display panel, setting manual voltage regulation revolves on the manual operation panel
Button 38；
The manual voltage regulation knob 38 includes high concentration adjusting pressuring knob 38-1, middle concentration pressure regulation button 38-2 and low concentration
Pressure regulation button 38-3.
In the present embodiment, the lower cabinet body 4 include bottom plate, the cabinet framework being mounted on the bottom plate, be mounted on it is described
Cabinet front door 2 and the drawer 10 for testing tool placement are examined and determine in cabinet framework, is provided with heat release hole 3 in the cabinet framework；
The alarm module include be arranged in it is each it is described calibrating station at flash lamp 19, the flash lamp 19 it is defeated
Enter end to connect with the output end of microcontroller 36, the power supply interface includes voltage output interface 20 and ground interface 22, described
The alarm detection interface 46 for being additionally provided with communication interface 47 at calibrating station and being connected for sound-light alarm detection module 49, the sound
Light alarm detection module 49 is located at the bottom of the test cabinet body 7, and the communication interface 47 includes USB interface, RS-232C interface
With RS-485 interface；
The camera 16 is mounted at the calibrating station by hose 56, and the camera 16 is located at gas detection
The top of instrument 50.
In the present embodiment, the setting of flash lamp 19 is for the gas detecting instrument in verification process, at each calibrating station
When 50 calibratings are unqualified, flash for prompting is carried out.
In the present embodiment, the setting of communication interface 47, convenient for the connection of external equipment.
In the present embodiment, air draft mechanism is provided in the cabinet, the air draft mechanism includes being arranged in the air tower
Interior the first blower 60, the second blower 61 and the exhaust pipe for being threaded through in the cabinet and stretching out the cabinet, first wind
Machine 60 and the second blower 61 are connect with the exhaust pipe, and the first electricity is provided between first blower 60 and the exhaust pipe
Dynamic air-valve 66, is provided with the second Electric air valve 62 between second blower 61 and the exhaust pipe, first blower 60, the
Two blowers 61, the first Electric air valve 66 and the second Electric air valve 62 are controlled by microcontroller 36.
In the present embodiment, the slipping mechanism of the sliding of air feed bottle Article holding box 54, the sliding plane are provided in the air tower
Structure include the sliding rail 25 being arranged in the air tower bottom and be slidably mounted on sliding rail 25 and with 54 bottom of gas cylinder Article holding box
The sliding block 26 being fixedly connected, the length of the sliding rail 25 are less than the width of the air tower.
As shown in fig. 6, the quantity of the air feed bottle 55 is three, and three air feed bottles 55 are respectively in the present embodiment
Low concentration air feed bottle, middle concentration air feed bottle and high concentration air feed bottle, the quantity of the air supply pipe 32 are three, three confessions
Tracheae 32 is respectively the first air supply pipe connecting with the low concentration air feed bottle, second connect with the middle concentration air feed bottle confession
Tracheae and the third air supply pipe connecting with the high concentration air feed bottle, first solenoid valve block include being arranged in the first air supply pipe
On the first solenoid valve 35-1, the second solenoid valve 35-2 that is arranged on second air supply pipe and setting supplied in the third
Third solenoid valve 35-3 on pipe, the first solenoid valve 35-1, second solenoid valve 35-2 and third solenoid valve 35-3 are by institute
Microcontroller 36 is stated to be controlled.
In the present embodiment, from using reliable, easy to operate, quick, easy to maintain, safety and sanitation of assembly etc. to consider,
The cabinet all uses metal plate, stainless steel material, is completed using Standard Machine processing and fabricating.Each component of verification machine is connected firmly,
Meet safety code, meets and be suitable for that human-computer interaction operation requires the subregions such as pressure automatic feeding system, image capturing system to pacify
Dress.
In the present embodiment, the setting of liquid separation crystal display screen 17 is in order to the gas detecting instrument 50 on each calibrating station
Supply voltage shown, convenient for checking.
In the present embodiment, the setting of total liquid crystal display 63 is for the confession to the air supply opening 18 on each calibrating station
Throughput is shown, convenient for checking, so that gas supply flow meets calibrating and requires.
In the present embodiment, calibrating cabinet includes the setting of lower cabinet body 4 and the test cabinet body 7 being mounted on the lower cabinet body 4, the
One, the setting of lower cabinet body 4 is the installation of the pipeline and exhaust pipeline for feeder, so that supply air line is mounted on one
In more closed environment, avoids the exposed dust accretions in air of air supply pipe and damage, cause the damage of supply air line；And it is supplying
Laboratory, which is discharged, by air-exhausting duct when tracheae gas leakage avoids calibrating gas leakage from causing testing person's injures and deaths；Second, it is to take out
The installation of drawer 10 is packed into convenient for that will examine and determine the tool used, fetches convenient for staff；Third is to increase the calibrating
The height of cabinet so that the height of calibrating cabinet adapt to when calibration operation personnel stand the installation of gas detecting instrument 50 to be examined and determine and to
The gas detecting instrument 50 of calibrating examines and determine the disassembly finished；4th, it is for bearing test cabinet body 7, convenient for examining and determine the laying of station.
In the present embodiment, the setting of control cabinet is for the ease of industrial personal computer 37, display 11 and manual operation key module
Deng laying, and the control cabinet is located at the calibrating cabinet and is the behaviour for the ease of testing person between the air tower
Make, the air tower can be operated and intuitively check the state in the calibrating cabinet, testing person is avoided repeatedly to exchange position
It sets, it is easy to operate.
In the present embodiment, the air tower is using Seal Design and air draft mechanism is arranged, the verification table with the calibrating cabinet
Face is concordant.The air tower uses anti-riot cold-rolled steel sheet, passes through shearing, bending, welding, punching press, polishing a series of complex technique
It refines, selects 2mm thickness iron plate plastic-spraying to do door, inside there is plastic-spraying iron plate to fix.Surface is through antirusts such as oil removing, acidification, phosphatizations
Processing, it is solid and reliable, it is anti-corrosion, fire-retardant, explosion-proof.
In the present embodiment, it is logical that the power supply worn for communication line and power supply line is provided in the one side wall of the lower box 23
Letter installing port 57, ventilation interface tube 58 and the exhaust pipe mouth 59 that wears of the confession exhaust pipe for vent line installation, the electricity
Seal retainer is provided at sources traffic installing port 57, ventilation interface tube 58 and exhaust pipe mouth 59.
In the present embodiment, the tipper installed for air feed bottle 55 is provided in the gas cylinder Article holding box 54.
In the present embodiment, the top of the lower box 23 is provided with mounting plate 35.
In the present embodiment, the setting of the mounting plate 35 is for the ease of the first solenoid valve 35-1, second solenoid valve 35-2
With the installation of third solenoid valve 35-3, laid so that supply air line is stablized.
In the present embodiment, the setting of gas cylinder Article holding box 54 is the installation in order to supply multiple and different air feed bottles 55, and makes to supply
Bottle 55 is inclined to be placed in gas cylinder Article holding box 54,55 slant setting of air feed bottle, on the one hand, be the height in order to reduce lower box 23
The manual operation key on upper box 24 is manually operated to reduce the height of the air tower convenient for staff in degree, another
Aspect is to facilitate staff's taking and placing when replacing air feed bottle；Third is in order to which 55 slant setting of air feed bottle reduces gas
To the pressure of 55 bottom of air feed bottle, slid convenient for air feed bottle 55 with gas cylinder Article holding box 54.
In the present embodiment, the setting of gas sensor 28 is in order to which testing person is closed in time by gas sensor 28
The gas leakage situation of note calibrating environment reduces the accidents such as personal injury caused by air pipe and interface burst leakage.
In the present embodiment, it is to supply the gas supply mechanism that setting air tower, which includes lower box 23 and upper box 24, first,
It is mounted in lower box 23, convenient for the connection by supply air line by air feed interface 18 in bottom and the calibrating cabinet；Second, on
The setting of cabinet 24 is for the installation for pressure reducing valve and manual voltage regulation knob 38, so that manual voltage regulation knob 38 is arranged on
At certain height, it is manually operated convenient for testing person；Third, be in order to be adapted to it is described calibrating cabinet and the control cabinet it is upper
The setting of lower mechanism utilizes spatial altitude to reduce the width of complete machine so as to reasonable the.
In the present embodiment, test cabinet body 7 setting, first, in order to it is multiple calibrating stations layings, be adapted to it is multiple to
The calibrating of the gas detecting instrument 50 of calibrating, to effectively adapt to new depositing gas detector 50, calibration operation amount is passed year by year for the first time
The trend of increasing；Second, it is to connect camera 16, air feed interface 18, communication interface, voltage output interface 20, electric current input
Mouthfuls 21 and ground interface 22 and alarm detection interface 46 etc. laying, in order to the adjusting and connection of testing person；Third is
In order to provide a closed calibrating space, gas detecting instrument 50 to be examined and determine is avoided to be done in verification process by environmental factor
It disturbs, improves the effect of calibrating；4th, it is to effectively limit the position that camera 16 and gas detecting instrument 50 to be examined and determine are installed
It setting, it is ensured that testing person can be installed in place every time, also ensure that camera 16 can shoot the image of gas detecting instrument 50 to be examined and determine,
Avoid calibrating environment disunity that 50 verification result of gas detecting instrument to be examined and determine is caused to have differences.
In the present embodiment, hermatic door 8 is tempered glass.
In the present embodiment, the setting of hermatic door 8 is to form closed calibrating space in order to cooperate test cabinet body 7, avoid
Gas leakage causes casualties in verification process；In addition, being in order to which for preventing in verification process, loine pressure is out of control, leads
It causes checklist to fly out to hurt sb.'s feelings, further support personnel's safety；Secondly, being also convenient in verification process, testing person checks calibrating
The state of station, finally, being in order to which in the verification process to gas detecting instrument, alarm or alarm occur for gas detecting instrument 50
Device alarm, can be carried out noise isolating.
In the present embodiment, the telescopic rod 5 is hydraulic stem.
In the present embodiment, setting telescopic rod 5 is hydraulic stem, is because the hermatic door of tempered glass has certain weight and inspection
It needs frequently to open in fixed, therefore is designed using hydraulic stem, reduce artificial labor intensity；Second, it is to close sealing
When door 8, hermatic door 8 drives hermatic door 8 and test cabinet body 7 to be in close contact, improves calibrating work under the pulling of contraction of hydraulic pressure bar
The airtightness of position；Third is to hermatic door 8 be dug upwards and is beaten when mounting and dismounting the gas detecting instrument 50 wait examine and determine
It opens, because the width of test cabinet body 7 is less than the width of the lower cabinet body 4, is stretched out so as to effectively utilize the lower cabinet body 4
The space for testing 7 top of cabinet body avoids the opening of hermatic door 8 from damaging to testing person.
In the present embodiment, flow sensor 41 is mass flowmenter.
In the present embodiment, setting flow sensor 41 detects gas supply flow, because of the meter according to gas detecting instrument
Vertification regulation regulation is measured, to guarantee that each detector can receive the stream of certain calibrating gas during detector calibrating
Amount, is mainly realized by flowmeter and is controlled the size and stability of flow, gas detecting instrument 50 is in defined stream
It can just can guarantee good sensitivity in amount range, 50 surface of gas detecting instrument can be made to be not achieved when flow is less than measurement request
True concentration cannot get new gas after gas fuel burning and be replenished in time, and burning cannot continue；When flow is excessive,
The element radiating of gas detecting instrument 50 can again increased, reduces sensitivity.Flowed fluctuation is larger in verification process, usually
Cause the response time in calibrating overproof or indicating value is overproof.
In the present embodiment, setting flow sensor 41 is mass flowmenter.It is because traditional calibrating is using float
Flowmeter controls by way of manually adjusting, visually observes the size of flow, there is the problems such as adjusting trouble, error is big, especially
Its gas detecting instrument stringent for some traffic requirements frequently results in calibrating failure.In response to this, using mass flow
Meter solves the drawbacks of manually controlling flow, precision controlling to ± 0.1%FS, and the reaction time is not more than 10ms.
In the present embodiment, the pressure digital display meter group includes first pressure digital display meter 33-1 and second pressure digital display meter 33-
2。
In the present embodiment, first pressure digital display meter 33-1 is in order to which the outlet pressure to air feed bottle 55 is shown second
Pressure digital display meter 33-2 is in order to which pressure is shown after depressurizing to air feed bottle 55, to cooperate first pressure sensor 39 and the
Two pressure sensors 40 realize the accurate detection of pressure, meet the calibrating requirement of gas detecting instrument.
In the present embodiment, setting first pressure sensor 39 detects 55 outlet pressure of air feed bottle, and will test
Outlet pressure be sent to microcontroller 36, the outlet pressure received is sent to work by communication module 48 by microcontroller 36
Control machine 37, the outlet pressure received is compared by industrial personal computer 37 with outlet pressure setting value, when first pressure sensor 39
The outlet pressure detected is less than outlet pressure setting value, and industrial personal computer 37 controls display 11 and prompts, and prompts gas in air feed bottle 55
Body is insufficient；
Pressure after the decompression that pressure after 40 pairs of second pressure sensor decompressions is detected, and be will test is sent to
Pressure after the decompression received is sent to industrial personal computer 37, industry control by communication module 48 by microcontroller 36, microcontroller 36
Pressure after the decompression received is compared by machine 37 with pressure set points after decompression, when second pressure sensor 40 detects
Outlet pressure do not meet pressure set points after decompression, industrial personal computer 37 controls display 11 and prompts, and staff passes through pressure reducing valve
33 are adjusted, and pressure after decompression is avoided to be unsatisfactory for gas detection calibrating requirement.
In the present embodiment, because the outlet of air feed bottle 55 is pressed in 10MPa~15MPa, it is not able to satisfy calibrating and requires, therefore
Pressure reducing valve 33 is set, the outlet pressure of air feed bottle 55 is reduced to 0.1MPa~0.3MPa.
In the present embodiment, it should be noted that the high concentration air feed bottle, the middle concentration gas supply and the low concentration supply
The concentration range of gas can be according to CO gas detector, methane gas detector, hydrogen sulfide gas detector or oxygen
The calibrating of gas gas detecting instrument requires to be contained.
In the present embodiment, the pressure reducing valve 33, first pressure digital display meter 33-1 and second pressure digital display meter 33-2 integrated one
Body, further, the pressure reducing valve 33 are built-in double-stage pressure reducer, can intuitively show the outlet pressure and efferent duct of air feed bottle
Pressure after the decompression on road, the smooth electrodeless adjustment of pressure, pressure are stablized, when the calibrating gas of different proportion concentration is depressurized through adjusting
Valve 33 makes second pressure digital display meter 33-2 show any pressure value of the pressure between 0.1~0.3MPa, while considering anti-corrosion
It is required that pressure reducing valve two-stage pressure shows the front for being directly integrated in the air tower using S series built-in double-stage pressure reducer,
Personnel are facilitated intuitively to observe.
In the present embodiment, it should be noted that calibrating gas piping should meet it is claimed below: a, to all gas without infiltration
Property；B, adsorption effect is minimum；It c, is in chemical inertness to the gas conveyed；D, the gas of conveying can quickly be made to reach balance.
In the present embodiment, the air supply pipe 32 is teflon hose, and pipe internal surface all has that anticorrosive, low adsorption is special
Property, convenient for plug；The main channel 44 and branch's snorkel 45 are stainless steel polishing pipe, and the exhaust pipe is pvc pipe.
In the present embodiment, the setting of sound-light alarm detection module 49, be in order in the verification process of gas detecting instrument 50,
It can detect that gas detecting instrument 50 is alarmed, in time convenient for accurately detecting the alarm point of gas detecting instrument 50.
In the present embodiment, sound-light alarm detection module 49 includes light detection module and sound detection module.
In the present embodiment, the light detection module is FJY photo resistance module, and the sound detection module is YL-56 sound
Sound detection module.
In the present embodiment, camera 16 is sieve skill C920 industrial camera, pixel 1,000,000, resolution ratio 1024*720.It can
Realize that portable gas detector gauge outfit numerical value is taken pictures crawl, recognition speed≤1 second/point, for segmentation screen, OLED, TFT,
The screens such as LED discrimination under backlighting environment can achieve 100%, for the equipment of no backlight function, take automatic light-supplementing
Function realizes the acquisition of image, has reading point camera function, is able to carry out follow-up data and traces to the source.
In the present embodiment, the camera 16 is mounted at the calibrating station by hose 56, and such camera 16 connects
Adapter tube can carry out the adjusting of camera according to the size of gas detecting instrument, height, facilitate and carry out catching for image using being flexible coupling
It catches.
In the present embodiment, industrial personal computer 37 is 21 cun of points of liquid crystals using magnificent industrial personal computer, embedded installation, display 11 is ground
Display screen.
In the present embodiment, the first blower 60 and the second blower 61 are all made of low pressure axial fan, blower material selection glass
Glass steel form, power 150W.
In the present embodiment, the first blower 60 and the second blower 61 are set, are to be adapted to calibrating room environmental requirement, leakage
When gas is few, it is only necessary to which a blower job reduces calibrating room blower bring noise；Only when leakage gas is higher, need
Two blowers are wanted to work at the same time discharge leakage gas as early as possible.
In the present embodiment, the setting of the first Electric air valve 66, be in order to the first blower 60 is connected to the exhaust pipe into
Row air draft exhaust；The setting of second Electric air valve 62 is to be connected to the second blower 61 with the exhaust pipe and carry out air draft row
Gas.
In the present embodiment, in verification process, gas switching mechanism is set, is for the gas supply of high concentration described in verification process
Calibrating gas is switched by calibrating requirement between bottle, the middle concentration air feed bottle and the low concentration air feed bottle, i.e. high concentration, low dense
Switching between degree and middle concentration standard gas；In addition, the multichannel calibrating channel of multiple calibrating stations is mutually indepedent, do not do mutually
It relates to, can be opened and closed any channel, multiple standards gas can be accessed simultaneously, each road independently, automatically controls.
In the present embodiment, gas supply mechanism and air compressor 30, first are set, are because being examined and determine to gas detecting instrument 50
Mainly detector is detected using the calibrating gas of known concentration in the process, the calibrating master of the zero point of gas detecting instrument
If being examined and determine using clean air, the calibrating of the linearity is examined and determine by the calibrating gas of various concentration, certainly according to gas
The difference of body detector type, the standard density are also different；Second, it is to lead to when switching the calibrating gas of various concentration
The residual gas that input air comes in vomit pipe is crossed, guarantees the accurate of each gas switching.
In the present embodiment, gas circuit switching mechanism is set, is because the air path part in verification process of gas detecting instrument 50 needs
Control the switching of air, various concentration calibrating gas.In addition, in practical verification process due in not all situation all
It is to examine and determine the road X gas detecting instrument, so also need to control to the gas path on-off of the gas detecting instrument of different location, because
This, the setting ventilation control solenoid valve 65 on branch's snorkel 45, the ventilation control solenoid valve 65 is by microcontroller 36
It is controlled.
In the present embodiment, gas detecting instrument 50 divides for portable gas detector and stationary gas detector.
In the present embodiment, voltage output interface 20 is in order to test stationary gas detector, by voltage output interface
The connection of power supply interface and stationary gas detector in 20, powers for stationary gas detector, in addition, passing through electric rotating
Press the knob on output interface 20, moreover it is possible to adjust the voltage value of the output of voltage output interface 20 to meet stationary gas detector
Power demands.
In the present embodiment, the setting of electric current input interface 21, be in order to test stationary gas detector, will be fixed
The output end of gas detecting instrument is connect with electric current input interface 21, is adopted to the current signal of stationary gas detector output
Collect and be sent to microcontroller 36, microcontroller 36 obtains fixing when being passed through calibrating gas by the processing to current signal
Gas concentration measured by formula gas detecting instrument, consequently facilitating the gas concentration measured is compared with calibrating gas,
With judge stationary gas detector quality whether meet demand.
In the present embodiment, high concentration adjusting pressuring knob 38-1, middle concentration pressure regulation button 38-2 and low concentration pressure regulation button 38-3
It is to adjust the high concentration air feed bottle, the middle concentration air feed bottle and the low concentration air feed bottle respectively by pressure reducing valve 33
Distribution pressure afterwards.
In the present embodiment, the setting of external snorkel 52 and gas hood 51 is in order to by the calibrating gas at air feed interface 18
At the detection probe of air delivery to gas detecting instrument 50, and it is each in order to which calibrating gas and air delivery concentration to be delivered to
At gas detecting instrument 50, it is ensured that gas detecting instrument 50 detects accurately.
In the present embodiment, microcontroller 36 is C8051F020 single-chip microcontroller.It is to be applicable in because single-chip microcontroller is small in size, low in energy consumption
In developing intellectual resource instrument and to the higher control system of power consumption requirements, and at low cost, the exploitation suitable for mini-system.
In the present embodiment, the gas switching valve 43 is four direction changeover valves.
When the utility model is specifically used, when examining and determine portable gas detector, by multiple portable gas detectors
It is placed at each calibrating station, and gas hood 51 is installed on portable gas detector, when progress portable gas detection
When the calibrating of instrument, operation low concentration supplies button 13, and microcontroller 36 controls the first solenoid valve 35-1 closure, by the low concentration
Air feed bottle is connected with the entrance of the gas switching valve 43, while the control ventilation control solenoid valve 65 of microcontroller 36 is closed, more
A branch's snorkel 45 is each air feed interface 18 gas supply, and the gas of air feed interface 18 is defeated by external snorkel 52 and gas hood 51
It send to portable gas detector, during portable gas detector detects calibrating gas, camera 16 is to portable
The test concentrations data image that gas detecting instrument detects is acquired, and the test concentrations data image that will test is sent to
The test concentrations data image received is sent to industrial personal computer 37 by communication module 48 by microcontroller 36, microcontroller 36,
Industrial personal computer 37 handles the test concentrations data image received, obtains test concentrations data, the test concentrations data
It is compared with substandard concentration, when the test concentrations data that industrial personal computer 37 obtains do not meet substandard concentration, illustrates portable
Formula gas detecting instrument low concentration test failure, industrial personal computer 37 control display 11 and show that portable gas detector low concentration is surveyed
It tries unqualified；When the test concentrations data fit substandard concentration that industrial personal computer 37 obtains, illustrate that portable gas detector is low
Concentration determination is qualified, and industrial personal computer 37 controls display 11 and shows portable gas detector low concentration test passes.Secondly, operation
Middle concentration supplies button 14, and microcontroller 36 controls second solenoid valve 35-2 closure, is dense in portable gas detector conveying
Calibrating gas is spent, when the test concentrations data that industrial personal computer 37 obtains do not meet Plays concentration, illustrates that portable gas detects
Concentration determination is unqualified in instrument, and industrial personal computer 37 controls display 11 and shows that concentration determination is unqualified in portable gas detector；
When the test concentrations data fit Plays concentration that industrial personal computer 37 obtains, illustrate that concentration determination closes in portable gas detector
Lattice, industrial personal computer 37 control display 11 and show that concentration determination is qualified in portable gas detector.Finally, operation high concentration gas supply
Button 15, microcontroller 36 control third solenoid valve 35-3 closure, convey high standard gas for portable gas detector,
When the test concentrations data that industrial personal computer 37 obtains do not meet high standard concentration, illustrate that portable gas detector high concentration is surveyed
Try unqualified, the control display portable gas detector high concentration test failure of display 11 of industrial personal computer 37；When industrial personal computer 37
When obtained test concentrations data fit high standard concentration, illustrate that high measure is qualified in portable gas detector, industrial personal computer
37 control displays 11 show portable gas detector high concentration test passes.When portable gas detector is surveyed in low concentration
When examination, middle concentration determination and qualified high concentration test, portable gas detector indicating value is qualified, during actual use, it can
It is required to carry out the calibrating of the parameters such as other response times, drift and alarm point according to calibrating, until gas detecting instrument conjunction can carry out
Demand is detected in storage or oil field.
When the formula gas detecting instrument of being fixed makes, by adjusting voltage output interface 20 as the confession of stationary gas detector
Electricity, and the output end of stationary gas detector is connect with electric current input interface 21, and operate low concentration gas supply button 13 and be
Stationary gas detector conveys low concentration calibrating gas, and electric current input interface 21 collects current signal and is sent to microcontroller
36, microcontroller 36 obtains test concentrations data by processing, and microcontroller 36 passes through the test concentrations data received logical
Letter module 48 is sent to industrial personal computer 37, and the test concentrations data received are compared by industrial personal computer 37 with substandard concentration, when
When the test concentrations data that industrial personal computer 37 obtains do not meet substandard concentration, illustrate the test of stationary gas detector low concentration not
Qualification, industrial personal computer 37 controls display 11 and shows that stationary gas detector is unqualified, when the test concentrations that industrial personal computer 37 obtains
When data fit substandard concentration, illustrate that stationary gas detector low concentration test failure, industrial personal computer 37 control display
11 display stationary gas detectors are qualified；Secondly, concentration supplies button 14 in operation, in the conveying of stationary gas detector
Concentration standard gas illustrates that stationary gas is examined when the test concentrations data that industrial personal computer 37 obtains do not meet Plays concentration
It is unqualified to survey concentration determination in instrument, industrial personal computer 37 controls display 11 and shows that concentration determination does not conform in stationary gas detector
Lattice；When the test concentrations data fit Plays concentration that industrial personal computer 37 obtains, illustrate that concentration is surveyed in stationary gas detector
Examination is qualified, and industrial personal computer 37 controls display 11 and shows that concentration determination is qualified in stationary gas detector.Finally, operation high concentration
Button 15 is supplied, high standard gas is conveyed for stationary gas detector, when the test concentrations data that industrial personal computer 37 obtains
When not meeting high standard concentration, illustrate that stationary gas detector high concentration test failure, industrial personal computer 37 control display 11
Show stationary gas detector high concentration test failure；When the test concentrations data fit high standard that industrial personal computer 37 obtains is dense
When spending, illustrate that high measure is qualified in stationary gas detector, industrial personal computer 37 controls display 11 and shows stationary gas inspection
Survey instrument high concentration test passes.When stationary gas detector is closed in low concentration test, middle concentration determination and high concentration test
When lattice, stationary gas detector indicating value is qualified, during actual use, can be required to carry out according to calibrating other response times,
The parameters such as drift and alarm point calibrating, until gas detecting instrument conjunction can carry out storage or oil field detection demand.
In conclusion the utility model is designed reasonably, easy to operate and using effect are good, realize to multiple gas detecting instruments
Calibrating, improve gas detecting instrument calibrating efficiency, guarantee that required gas detecting instrument is marched into the arena installation in time, meet engineering construction into
Degree, and guarantee the accuracy of gas detecting instrument calibrating, labor intensity is reduced, it is practical.
The above is only the preferred embodiment of the utility model, not imposes any restrictions to the utility model, all
According to any simple modification to the above embodiments of the utility model technical spirit, change and equivalent structural changes, still
Belong in the protection scope of technical solutions of the utility model.
Claims (9)
1. a kind of multistation gas detecting instrument verification machine, it is characterised in that: including cabinet, be mounted on the cabinet and to multiple
The calibrating station and be mounted in the cabinet and be multiple gas detecting instruments (50) that gas detecting instrument (50) is examined and determine
The feeder of ventilation, and to the monitoring device that the calibrating station and the feeder are monitored；
The cabinet includes sequentially connected calibrating cabinet, control cabinet and air tower, and the calibrating cabinet includes lower cabinet body (4) and installation
Test cabinet body (7) on the lower cabinet body (4) is provided with the hermatic door (8) that can be opened and closed on test cabinet body (7), described
Examine and determine station quantity be it is multiple, it is interior that multiple calibrating stations are respectively positioned on the test cabinet body (7), sets at the calibrating station
It is equipped with camera (16), liquid separation crystal display screen (17), power supply interface, electric current input interface (21), alarm module and air feed interface
(18), the ventilation member of the promising gas detecting instrument (50) ventilation is connected on the air feed interface (18)；
The feeder includes the gas supply mechanism for being the air feed interface (18) offer calibrating gas, is the air feed interface
(18) air compressor (30) of air is provided, is switched with the gas circuit that the gas supply mechanism is connect with the air compressor (30)
Mechanism and the gas circuit distribution circuit for connecting with the gas circuit switching mechanism and being connect respectively with multiple air feed interfaces (18), institute
Gas supply mechanism is stated to include the gas cylinder Article holding box (54) being arranged in the air tower and multiple be mounted on the gas cylinder Article holding box
(54) in and the air feed bottle (55) of splendid attire calibrating gas, the air feed bottle (55) pass through air supply pipe (32) and the gas circuit switching machine
Structure connects, and is provided with pressure reducing valve (33) on the air supply pipe (32)；
The monitoring device includes microcontroller (36), industrial personal computer (37) and the display (11) to connect with industrial personal computer (37),
The microcontroller (36) and industrial personal computer (37) carry out data communication, and the input of the microcontroller (36) is terminated with to the confession
First pressure sensor (39) that the outlet pressure of gas cylinder (55) is detected carries out pressure after the air feed bottle (55) decompression
The second pressure sensor (40) of detection, the flow sensor (41) that the gas supply flow of the air feed interface (18) is detected
With the gas sensor (28) being arranged in the air tower, the gas circuit switching mechanism is controlled by the microcontroller (36)
System.
2. a kind of multistation gas detecting instrument verification machine described in accordance with the claim 1, it is characterised in that: the test cabinet body
(7) width is less than the width of lower cabinet body (4), and the gas detecting instrument (50) is mounted on the bottom of test cabinet body (7), institute
It states test cabinet body (7) interior both ends to be provided with telescopic rod (5), the fixing end of the telescopic rod (5) is fixedly mounted on test cabinet body (7)
The movable end of interior bottom, the telescopic rod (5) is fixedly connected with hermatic door (8), is provided with knob (6) on the hermatic door (8).
3. a kind of multistation gas detecting instrument verification machine described in accordance with the claim 1, it is characterised in that: the gas circuit switching machine
Structure includes gas switching valve (43), the first solenoid valve block and installation that are mounted between air feed bottle (55) and gas switching valve (43)
Second solenoid valve group between gas switching valve (43) and air feed interface (18), multiple air supply pipes (32) and gas switch
The entrance of valve (43) connects, and the air compressor (30) is connected by the entrance of air appendix (42) and gas switching valve (43)
It connects, first solenoid valve block is located on the air supply pipe (32)；
The main channel (44) and the multiple and master that the gas circuit distribution circuit includes and gas switching valve (43) outlet connects
Branch's snorkel (45) of snorkel (44) connection, branch's snorkel (45) connect with air feed interface (18), and described second
Solenoid valve block includes multiple ventilation controls solenoid valve (65) being separately positioned on multiple branch's snorkels (45), and the flow passes
Sensor (41) is located on branch's snorkel (45), and first solenoid valve block and ventilation control solenoid valve (65) are by micro-control
Device (36) processed is controlled；
The ventilation member include the external snorkel (52) that is connected on the air feed interface (18) and with external snorkel
(52) it connects and covers on the gas hood (51) on the gas detecting instrument (50).
4. a kind of multistation gas detecting instrument verification machine described in accordance with the claim 1, it is characterised in that: the control cabinet includes
The display operating panel (9) of lower control cabinet body (1) and setting on lower control cabinet body (1), the industrial personal computer (37) are located at
The lower control cabinet body (1), the display (11) are located on display operating panel (9), set on the display operating panel (9)
It is equipped with manual operation key module, the manual operation key module includes that high concentration supplies button (15), middle concentration gas supply is pressed
Button (14), low concentration gas supply button (13) and air are passed through key (12), high concentration gas supply button (15), middle concentration gas supply
Button (14), low concentration gas supply button (13) and air are passed through input terminal of the output end of key (12) with microcontroller (36)
Connect；The industrial personal computer (37) is connected by communication module (48) with microcontroller (36).
5. a kind of multistation gas detecting instrument verification machine described in accordance with the claim 1, it is characterised in that: the air tower includes
Lower box (23), the upper box (24) for being arranged on the lower box (23) and being connected to the lower box (23), the top box
It is provided with pressure display panel and manual operation panel on body (24), is provided with pressure digital display meter on the pressure display panel
Manual voltage regulation knob (38) are arranged on the manual operation panel in group；
The manual voltage regulation knob (38) includes high concentration adjusting pressuring knob (38-1), middle concentration pressure regulation button (38-2) and low concentration
Pressure regulation button (38-3).
6. a kind of multistation gas detecting instrument verification machine described in accordance with the claim 1, it is characterised in that: the lower cabinet body (4)
Including bottom plate, the cabinet framework being mounted on the bottom plate, the calibrating cabinet front door (2) being mounted in the cabinet framework and for survey
Trial work has the drawer (10) placed, and is provided with heat release hole (3) in the cabinet framework；
The alarm module includes the flash lamp (19) being arranged at each calibrating station, the input of the flash lamp (19)
End connects with the output end of microcontroller (36), and the power supply interface includes voltage output interface (20) and ground interface (22),
Communication interface (47) and the alarm detection interface for sound-light alarm detection module (49) connection are additionally provided at the calibrating station
(46), the sound-light alarm detection module (49) is located at the bottom of test cabinet body (7), and the communication interface (47) includes
USB interface, RS-232C interface and RS-485 interface；
The camera (16) is mounted at the calibrating station by hose (56), and the camera (16) is located at gas inspection
Survey the top of instrument (50).
7. a kind of multistation gas detecting instrument verification machine described in accordance with the claim 1, it is characterised in that: setting in the cabinet
There is air draft mechanism, the air draft mechanism includes the first blower (60) being arranged in the air tower, the second blower (61) and wears
Be located in the cabinet and stretch out the exhaust pipe of the cabinet, first blower (60) and the second blower (61) with the row
Tracheae connection, is provided with the first Electric air valve (66), second blower between first blower (60) and the exhaust pipe
(61) it is provided between the exhaust pipe the second Electric air valve (62), first blower (60), the second blower (61), first
Electric air valve (66) and the second Electric air valve (62) are controlled by microcontroller (36).
8. a kind of multistation gas detecting instrument verification machine described in accordance with the claim 1, it is characterised in that: set in the air tower
It is equipped with the slipping mechanism of air feed bottle Article holding box (54) sliding, the slipping mechanism includes the cunning being arranged in the air tower bottom
Rail (25) and the sliding block (26) for being slidably mounted on sliding rail (25) and being fixedly connected with gas cylinder Article holding box (54) bottom, the sliding rail
(25) length is less than the width of the air tower.
9. a kind of multistation gas detecting instrument verification machine described in accordance with the claim 3, it is characterised in that: the air feed bottle (55)
Quantity be three, three air feed bottles (55) are respectively low concentration air feed bottle, middle concentration air feed bottle and high concentration air feed bottle,
The quantity of the air supply pipe (32) is three, and three air supply pipes (32) are respectively the connect with the low concentration air feed bottle
One air supply pipe, the second air supply pipe being connect with the middle concentration air feed bottle and the third being connect with high concentration air feed bottle gas supply
Pipe, first solenoid valve block include the first solenoid valve (35-1) being arranged on the first air supply pipe, setting in second confession
Second solenoid valve (35-2) on tracheae and the third solenoid valve (35-3) being arranged on the third air supply pipe, first electricity
Magnet valve (35-1), second solenoid valve (35-2) and third solenoid valve (35-3) are controlled by the microcontroller (36).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821887361.2U CN209264679U (en) | 2018-11-16 | 2018-11-16 | A kind of multistation gas detecting instrument verification machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821887361.2U CN209264679U (en) | 2018-11-16 | 2018-11-16 | A kind of multistation gas detecting instrument verification machine |
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| Publication Number | Publication Date |
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| CN209264679U true CN209264679U (en) | 2019-08-16 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109307745A (en) * | 2018-11-16 | 2019-02-05 | 长庆石油勘探局有限公司技术监测中心 | A kind of multistation gas detecting instrument verification machine |
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2018
- 2018-11-16 CN CN201821887361.2U patent/CN209264679U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109307745A (en) * | 2018-11-16 | 2019-02-05 | 长庆石油勘探局有限公司技术监测中心 | A kind of multistation gas detecting instrument verification machine |
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