CN107727809A - A kind of detection means of workshop gas - Google Patents
A kind of detection means of workshop gas Download PDFInfo
- Publication number
- CN107727809A CN107727809A CN201711308019.2A CN201711308019A CN107727809A CN 107727809 A CN107727809 A CN 107727809A CN 201711308019 A CN201711308019 A CN 201711308019A CN 107727809 A CN107727809 A CN 107727809A
- Authority
- CN
- China
- Prior art keywords
- gas
- detection means
- screen pack
- workshop
- sensor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
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Classifications
-
- 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—Specially adapted to detect a particular component
- G01N33/0047—Specially adapted to detect a particular component for organic compounds
-
- 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—Specially adapted to detect a particular component
- G01N33/004—Specially adapted to detect a particular component for CO, CO2
-
- 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—Specially adapted to detect a particular component
- G01N33/0042—Specially adapted to detect a particular component for SO2, SO3
-
- 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
- G01N33/22—Fuels, explosives
- G01N33/225—Gaseous fuels, e.g. natural gas
Abstract
The invention discloses a kind of detection means of workshop gas, including battery, desiccant layer, cylinder, ventilation duct, air exhauster, screen pack, pulley, chute, installation cavity, through hole, buzzer siren, methane transducer, display screen, SO 2 sensor, controller, CO sensors, gas security, color lamp, air cavity, exhaust duct, sleeve pipe, air bleeding valve, blast pipe, sucker, piston and fix bar.The detection means of this kind of workshop gas is by setting screen pack and desiccant layer, preferably gas can be filtered and dried, avoid pneumatic dust and steam causes to damage into sensor, the precision of the life-span gentle body testing result of sensor is improved simultaneously, and multiple gases can be measured when logical, are used more convenient, cost is saved, by setting sucker, quickly gas detecting instrument can be replaced, while to the easier for installation quick of gas detecting instrument.
Description
Technical field
The present invention relates to a kind of gas-detecting device, specially a kind of detection means of workshop gas, belong to detection
Equipment technical field.
Background technology
Workshop is the basic implementation tissue of enterprise's production, and typically there is appropriate scale in the workshop of industrial enterprise, undertaken
The production and processing task of one independent product or an individual components, be initially because production scene inside be entirely a little lathes,
The large industry equipments such as milling machine, people inside work production, so being workshop, workshop management is centered on production
Business administration form, it is the unit that enterprises perform production task, in workshop management system, shop safety management is even more
Hard core control task, in some type of production workshops, during production operation, some toxic and harmful gas can be produced, work as suction
Receiving apparatus, which can not fully absorb, discharges caused toxic and harmful gas, may result in and malicious pernicious gas is diffused out in workshop, sternly
The all personnel in workshop is threatened again, therefore gas detection equipment is in the essential part of workshop prevention safety.
And at present existing gas detecting instrument workshop fixation generally by being bolted on wall, so dismounting
It is cumbersome, it is not easily shifted, and the aperture of many can be caused after removing to wall, often measuring a kind of gas needs carrying a kind of
Detection, function is single, and limitation is strong, and air, which compares in moistening and air, when using inconvenience, and measuring carries dirt
Angstrom thing, easily sensor, which is resulted in blockage, reduces the service life and precision of gas detecting instrument.Therefore, regarding to the issue above
It is proposed a kind of detection means of workshop gas.
The content of the invention
The purpose of the present invention is that to solve the above problems and provides a kind of detection means of workshop gas.
The present invention is achieved through the following technical solutions above-mentioned purpose, a kind of detection means of workshop gas, including
Cylinder and the fix bar being fixedly connected with cylinder bottom, surface is provided with display screen and color lamp to the cylinder respectively,
And the display screen bottom is electrically connected with controller, the cylinder top end side offers installation cavity, in the installation cavity
Buzzer siren is installed, the installation cavity top offers through hole, and the cylinder bottom offers air cavity, the air cavity one
End is provided with air exhauster, and the air exhauster side is provided with screen pack, and the screen pack both ends are installed with pulley, the filtering
Net is provided with desiccant layer away from air exhauster side, and the desiccant layer is provided with battery, the electric power storage away from screen pack side
Methane transducer, SO 2 sensor, CO sensors and gas security are sequentially installed with the top of pond, the air cavity both ends are opened
Provided with chute, the air cavity both sides have been respectively communicated with ventilation duct and exhaust duct；
The fix bar thread surface is connected with sleeve pipe, and described sleeve pipe bottom is installed with sucker, described sleeve pipe inner chamber and band
The blast pipe for having air bleeding valve connects, and the fix bar bottom is fixedly connected with piston.
Preferably, the color lamp number is four, and four color lamps sense with methane transducer, sulfur dioxide respectively
Device, CO sensors and gas security are electrically connected with.
Preferably, the pulley is connected with slide.
Preferably, the screen pack, desiccant layer, battery are respectively positioned on inside air cavity.
Preferably, the controller respectively with buzzer siren, methane transducer, SO 2 sensor, CO sensors
And gas security is electrically connected with.
Preferably, the filtering net surface is socketed with block rubber.
Preferably, the battery electrically connects with air exhauster, buzzer siren, controller, display screen and color lamp respectively
Connect.
Preferably, the sucker is cirque structure.
The beneficial effects of the invention are as follows：
1. the structure of the detecting device of this kind of workshop gas is simple, simple operation, functional, novel in design, pass through setting
Screen pack and desiccant layer, preferably gas can be filtered and dried, avoided pneumatic dust and steam enters sensing
Device is caused to damage, while the precision of the life-span for improving sensor gentle body testing result, and multiple gases can be measured when logical,
Use more convenient, saved cost.
2. by setting sucker, quickly gas detecting instrument can be replaced, while to the installation of gas detecting instrument
It is more convenient, avoid and wall body hole is screwed, movement is more convenient.
Brief description of the drawings
Fig. 1 is overall structure diagram of the present invention；
Fig. 2 is side structure schematic view of the present invention；
Fig. 3 is partial enlargement structural representation at A of the present invention.
In figure：1st, battery, 2, desiccant layer, 3, cylinder, 4, ventilation duct, 5, air exhauster, 6, screen pack, 7, pulley,
8th, chute, 9, installation cavity, 10, through hole, 11, buzzer siren, 12, methane transducer, 13, display screen, 14, sulfur dioxide sensing
Device, 15, controller, 16, CO sensors, 17, gas security, 18, color lamp, 19, air cavity, 20, exhaust duct, 21, sleeve pipe, 22,
Air bleeding valve, 23, blast pipe, 24, sucker, 25, piston, 26, fix bar.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
Refer to shown in Fig. 1-3, a kind of detection means of workshop gas, including cylinder 3 and with the bottom of cylinder 3
The fix bar 26 being fixedly connected is held, surface is provided with display screen 13 and color lamp 18 to the cylinder 3 respectively, is easy to observe gas
Concentration and differentiation gaseous species, and the bottom of the display screen 13 is electrically connected with controller 15, the top side of cylinder 3 is opened
Provided with installation cavity 9, buzzer siren 11 is installed in the installation cavity 9, reminded when being easy to have pernicious gas, the installation
The top of chamber 9 offers through hole 10, and the bottom of cylinder 3 offers air cavity 19, and described one end of air cavity 19 is provided with air exhauster 5,
It is easy to absorb gas, the side of air exhauster 5 is provided with screen pack 6, is easy to filter the dust in air, the screen pack
6 both ends are installed with pulley 7, and the screen pack 6 is provided with desiccant layer 2 away from the side of air exhauster 5, is easy to the air to moistening
It is dried, the desiccant layer 2 is provided with battery 1 away from the side of screen pack 6, and the top of battery 1 is sequentially installed with
Methane transducer 12, SO 2 sensor 14, CO sensors 16 and gas security 17, are easy to gas sensing and classify,
The both ends of air cavity 19 offer chute 8, and the both sides of air cavity 19 have been respectively communicated with ventilation duct 4 and exhaust duct 20；
The thread surface of fix bar 26 is connected with sleeve pipe 21, and the bottom of described sleeve pipe 21 is installed with sucker 24, described sleeve pipe
21 inner chambers connect with the blast pipe 23 with air bleeding valve 22, and the bottom of fix bar 26 is fixedly connected with piston 25, is easy to be formed
Closed environment.
As a kind of technical optimization scheme of the present invention, the number of color lamp 18 is four, and four color lamps 18 divide
It is not electrically connected with methane transducer 12, SO 2 sensor 14, CO sensors 16 and gas security 17, is easy to understand
The gas detected.
As a kind of technical optimization scheme of the present invention, the pulley 7 is slidably connected with chute 8, is easy to enter screen pack 6
Row movement.
As a kind of technical optimization scheme of the present invention, the screen pack 6, desiccant layer 2, battery 1 are respectively positioned on air cavity
Inside 19, it is easy to filter gas and dried.
As a kind of technical optimization scheme of the present invention, the controller 15 senses with buzzer siren 11, methane respectively
Device 12, SO 2 sensor 14, CO sensors 16 and gas security 17 are electrically connected with, the control of information after just gas detects
System and conduction.
As a kind of technical optimization scheme of the present invention, the surface of screen pack 6 is socketed with block rubber, is easy to be formed closed
Structure, prevent gas from leaking.
As the present invention a kind of technical optimization scheme, the battery 1 respectively with air exhauster 5, buzzer siren 11, control
Device 15, display screen 12 and color lamp 18 processed are electrically connected with, and are easy to provide electric energy.
As a kind of technical optimization scheme of the present invention, the sucker 24 is cirque structure, is easy to gas detecting instrument
The fixation being sitting on metope.
In the use of the present invention, when being fixed to device, sucker 24 is directed at metope first, be rotated further by fix bar 26, make solid
Fixed pole 26 moves with piston 25 to away from the direction of sucker 24, air in sucker 24 is pumped into sleeve pipe 21, makes the sucker 24 be
Vacuum is then turned on air exhauster 5, air exhauster 5 is pumped into the gas in workshop by ventilation duct 4 so that gas detecting instrument is fixed
In air cavity 19, gas is filtered dust by screen pack 6, and then passing the gas through desiccant layer 2 is dried gas,
Portion gas is set to sequentially enter methane transducer 12, SO 2 sensor 14, CO sensors 16 and gas security 17 again
It is interior and oxidation reaction and by gas classification is carried out to gas, while remaining gas is discharged by exhaust duct 20, when gas detects
After good, by electrically passing the information in controller 15, controller 15 is set to do corresponding control, when detecting gas to there is poison gas
When body leaks, controller 15, which can control, opens the ring of buzzer siren 11, while gas concentration size is shown by display screen
Out, it while can light the color lamp 18 of corresponding gas, so as to which gas detection is judged and immediately treated.
Wherein：The preferred model GJ4 of methane transducer 12；The preferred model 4NE/-20 of SO 2 sensor 14；CO is passed
The preferred model TGS2442 of sensor 16；The preferred model MQ-4 of gas security 17.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit requires rather than described above limits, it is intended that all in the implication and scope of the equivalency of claim by falling
Change is included in the present invention.Any reference in claim should not be considered as to the involved claim of limitation.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped
Containing an independent technical scheme, this narrating mode of specification is only that those skilled in the art should for clarity
Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
It is appreciated that other embodiment.
Claims (8)
1. a kind of detection means of workshop gas, including cylinder（3）And and cylinder（3）What bottom was fixedly connected consolidates
Fixed pole（26）, it is characterised in that：The cylinder（3）Surface is provided with display screen respectively（13）And color lamp（18）, and it is described aobvious
Display screen（13）Bottom is electrically connected with controller（15）, the cylinder（3）Top side offers installation cavity（9）, the peace
It behave affectedly（9）Buzzer siren is inside installed（11）, the installation cavity（9）Top offers through hole（10）, the cylinder（3）Bottom
End offers air cavity（19）, the air cavity（19）One end is provided with air exhauster（5）, the air exhauster（5）Side is provided with screen pack
（6）, the screen pack（6）Both ends are installed with pulley（7）, the screen pack（6）Away from air exhauster（5）Side is provided with drying
Oxidant layer（2）, the desiccant layer（2）Away from screen pack（6）Side is provided with battery（1）, the battery（1）Top is successively
Methane transducer is installed（12）, SO 2 sensor（14）, CO sensors（16）And gas security（17）, the air cavity
（19）Both ends offer chute（8）, the air cavity（19）Both sides have been respectively communicated with ventilation duct（4）And exhaust duct（20）；
The fix bar（26）Thread surface is connected with sleeve pipe（21）, described sleeve pipe（21）Bottom is installed with sucker（24）,
Described sleeve pipe（21）Inner chamber is with carrying air bleeding valve（22）Blast pipe（23）Connection, the fix bar（26）Bottom is fixedly connected with
Piston（25）.
A kind of 2. detection means of workshop gas according to claim 1, it is characterised in that：The color lamp（18）Number
Mesh is four, and four color lamps（18）Respectively with methane transducer（12）, SO 2 sensor（14）, CO sensors
（16）And gas security（17）It is electrically connected with.
A kind of 3. detection means of workshop gas according to claim 1, it is characterised in that：The pulley（7）With
Chute（8）It is slidably connected.
A kind of 4. detection means of workshop gas according to claim 1, it is characterised in that：The screen pack（6）、
Desiccant layer（2）, battery（1）It is respectively positioned on air cavity（19）It is internal.
A kind of 5. detection means of workshop gas according to claim 1, it is characterised in that：The controller（15）
Respectively with buzzer siren（11）, methane transducer（12）, SO 2 sensor（14）, CO sensors（16）And combustion gas passes
Sensor（17）It is electrically connected with.
A kind of 6. detection means of workshop gas according to claim 1, it is characterised in that：The screen pack（6）
Surface is socketed with block rubber.
A kind of 7. detection means of workshop gas according to claim 1, it is characterised in that：The battery（1）
Respectively with air exhauster（5）, buzzer siren（11）, controller（15）, display screen（12）And color lamp（18）It is electrically connected with.
A kind of 8. detection means of workshop gas according to claim 1, it is characterised in that：The sucker（24）For
Cirque structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711308019.2A CN107727809A (en) | 2017-12-11 | 2017-12-11 | A kind of detection means of workshop gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711308019.2A CN107727809A (en) | 2017-12-11 | 2017-12-11 | A kind of detection means of workshop gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107727809A true CN107727809A (en) | 2018-02-23 |
Family
ID=61220386
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711308019.2A Withdrawn CN107727809A (en) | 2017-12-11 | 2017-12-11 | A kind of detection means of workshop gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107727809A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108758967A (en) * | 2018-07-03 | 2018-11-06 | 上海常仁信息科技有限公司 | It is capable of the healthy robot of environment measuring |
| CN110197571A (en) * | 2019-06-19 | 2019-09-03 | 电子科技大学 | A kind of toxic air alarm device based on gas sensor |
| CN111275933A (en) * | 2020-03-15 | 2020-06-12 | 河北源泷科技有限公司 | Safety detection alarm device used in workshop |
| CN111829947A (en) * | 2020-07-22 | 2020-10-27 | 广东科捷检测技术服务有限公司 | Facing brick bonding strength test device and method |
| CN113237999A (en) * | 2021-04-18 | 2021-08-10 | 鲁文英 | Voc online monitoring system and monitoring method thereof |
| CN114487307A (en) * | 2022-03-02 | 2022-05-13 | 深圳市申思科技有限公司 | Parking area carbon monoxide content detection sensor |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101443319B1 (en) * | 2013-07-24 | 2014-09-29 | 이엠씨(주) | Industrial equipment safety toxic gas remote control system |
| CN105467091A (en) * | 2016-01-21 | 2016-04-06 | 成都边界元科技有限公司 | Industrial park carbon emission intensity monitoring sensor precision guaranteeing device |
| CN206161621U (en) * | 2016-10-28 | 2017-05-10 | 武汉慧谷银河智能系统工程有限公司 | Air quality detecting device |
| CN106770955A (en) * | 2016-12-23 | 2017-05-31 | 张伟荃 | It is a kind of to be easy to mobile air detecting device |
| CN106810052A (en) * | 2016-12-26 | 2017-06-09 | 凤阳嘉禾农业科技有限公司 | A kind of glass mold shakes trash separator |
| CN206431114U (en) * | 2017-02-14 | 2017-08-22 | 冯原 | A kind of automobile harmful gas detects protector |
| CN207571106U (en) * | 2017-12-11 | 2018-07-03 | 洛阳乐森石化新材料有限公司 | A kind of detection device of workshop gas |
-
2017
- 2017-12-11 CN CN201711308019.2A patent/CN107727809A/en not_active Withdrawn
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101443319B1 (en) * | 2013-07-24 | 2014-09-29 | 이엠씨(주) | Industrial equipment safety toxic gas remote control system |
| CN105467091A (en) * | 2016-01-21 | 2016-04-06 | 成都边界元科技有限公司 | Industrial park carbon emission intensity monitoring sensor precision guaranteeing device |
| CN206161621U (en) * | 2016-10-28 | 2017-05-10 | 武汉慧谷银河智能系统工程有限公司 | Air quality detecting device |
| CN106770955A (en) * | 2016-12-23 | 2017-05-31 | 张伟荃 | It is a kind of to be easy to mobile air detecting device |
| CN106810052A (en) * | 2016-12-26 | 2017-06-09 | 凤阳嘉禾农业科技有限公司 | A kind of glass mold shakes trash separator |
| CN206431114U (en) * | 2017-02-14 | 2017-08-22 | 冯原 | A kind of automobile harmful gas detects protector |
| CN207571106U (en) * | 2017-12-11 | 2018-07-03 | 洛阳乐森石化新材料有限公司 | A kind of detection device of workshop gas |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108758967A (en) * | 2018-07-03 | 2018-11-06 | 上海常仁信息科技有限公司 | It is capable of the healthy robot of environment measuring |
| CN110197571A (en) * | 2019-06-19 | 2019-09-03 | 电子科技大学 | A kind of toxic air alarm device based on gas sensor |
| CN110197571B (en) * | 2019-06-19 | 2021-12-21 | 电子科技大学 | Toxic gas alarm based on gas sensor |
| CN111275933A (en) * | 2020-03-15 | 2020-06-12 | 河北源泷科技有限公司 | Safety detection alarm device used in workshop |
| CN111275933B (en) * | 2020-03-15 | 2022-07-12 | 山东全员本安教育咨询有限公司 | Safety detection alarm device used in workshop |
| CN111829947A (en) * | 2020-07-22 | 2020-10-27 | 广东科捷检测技术服务有限公司 | Facing brick bonding strength test device and method |
| CN113237999A (en) * | 2021-04-18 | 2021-08-10 | 鲁文英 | Voc online monitoring system and monitoring method thereof |
| CN114487307A (en) * | 2022-03-02 | 2022-05-13 | 深圳市申思科技有限公司 | Parking area carbon monoxide content detection sensor |
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Application publication date: 20180223 |