CN109507249A - A kind of new gas detector with self-cleaning function - Google Patents
A kind of new gas detector with self-cleaning function Download PDFInfo
- Publication number
- CN109507249A CN109507249A CN201811562438.3A CN201811562438A CN109507249A CN 109507249 A CN109507249 A CN 109507249A CN 201811562438 A CN201811562438 A CN 201811562438A CN 109507249 A CN109507249 A CN 109507249A
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- Prior art keywords
- gas
- eto
- self
- sensor body
- cleaning function
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- 238000004140 cleaning Methods 0.000 title claims abstract description 20
- 230000007613 environmental effect Effects 0.000 claims abstract description 27
- 238000007789 sealing Methods 0.000 claims abstract description 22
- 238000012545 processing Methods 0.000 claims abstract description 18
- 238000012360 testing method Methods 0.000 claims abstract description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 43
- 229910052799 carbon Inorganic materials 0.000 claims description 15
- 238000000746 purification Methods 0.000 claims description 15
- 238000001914 filtration Methods 0.000 claims description 4
- 239000004745 nonwoven fabric Substances 0.000 claims description 4
- 238000004891 communication Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 2
- 239000003610 charcoal Substances 0.000 claims 1
- 239000002245 particle Substances 0.000 claims 1
- 239000007789 gas Substances 0.000 description 87
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 35
- 238000001514 detection method Methods 0.000 description 9
- 230000035945 sensitivity Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000009298 carbon filtering Methods 0.000 description 2
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- -1 alkene nitrile Chemical class 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/30—Particle separators, e.g. dust precipitators, using loose filtering material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/56—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition
- B01D46/62—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in series
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B5/00—Cleaning by methods involving the use of air flow or gas flow
- B08B5/02—Cleaning by the force of jets, e.g. blowing-out cavities
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Electrochemistry (AREA)
- Molecular Biology (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The present invention provides a kind of new gas detector with self-cleaning function, and it further includes self-stripping unit that it, which includes ETO sensor body and the collecting sensor signal module that is arranged in ETO sensor body,；The self-stripping unit includes purifying processing device, gas path switching device and pump means；The purifying processing device is connected to, for being filtered generation clean gas to environmental gas to be measured with gas path switching device sealing；The gas path switching device includes the first gas circuit, the second gas circuit, third gas circuit and change-over valve；The pump means is connected to the sealing of the air inlet of the ETO sensor body, for extracting environmental gas or clean gas to be measured, and is transmitted in the ETO sensor body；The collecting sensor signal module is connect with the ETO sensor body, obtains the collected environmental gas information to be measured of the ETO sensor body, and output test result in real time.
Description
Technical field
The present invention relates to gas detection equipment technical fields, specifically, relate to a kind of with the new of self-cleaning function
Type gas detecting instrument.
Background technique
Currently, the detector of monitoring environment Poisoning gas, mainly uses electrochemical gas sensor.For example, with bias
Oxireme (Ethylene Oxide, ETO) sensor, need to keep sensor W electrode (work electricity in use
Pole) and R electrode (reference electrode) voltage difference be 300 millivolts.ETO sensor is commonly used to test ethylene oxide, vinyl chloride, third
The gases such as alkene nitrile, formaldehyde, these gases are usually applied to plant area, chemical company, workshop, storage workshop etc..
In actual application, part field environment meeting long-term existence low concentration above-mentioned gas reduces ETO sensor
The service life of ETO sensor influences its detection sensitivity.
In order to solve the above problems, people are seeking always a kind of ideal technical solution.
Summary of the invention
The purpose of the present invention is in view of the deficiencies of the prior art, to provide a kind of new gas with self-cleaning function
Detector.
To achieve the goals above, the technical scheme adopted by the invention is that: a kind of Novel air with self-cleaning function
Body detector, including ETO sensor body and collecting sensor signal module, further include self-stripping unit；The self-cleaning dress
It sets including purifying processing device, gas path switching device and pump means；
The purifying processing device is connected to, for being filtered life to environmental gas to be measured with gas path switching device sealing
At clean gas；
The gas path switching device includes the first gas circuit, the second gas circuit, third gas circuit and change-over valve；First gas circuit, institute
It states the second gas circuit and is connected to the third gas circuit by change-over valve sealing；First gas circuit and the pump means are close
Envelope connection, second gas circuit are connected to purifying processing device sealing；
The pump means is connected to the sealing of the air inlet of the ETO sensor body, for extract environmental gas to be measured or
Clean gas, and be transmitted in the ETO sensor body；
The collecting sensor signal module is connect with the ETO sensor body, obtains the ETO sensor body in real time
Collected environmental gas information to be measured, and output test result.
Based on above-mentioned, the pump means includes pump assembly and flame proof component；The Pump Suction Nozzle of the pump assembly with it is described
The sealing connection of first gas circuit, the mouth that is pumped out of the pump assembly pass through the gas of the flame proof component and the ETO sensor body
The connection of body inlet seal.
Based on above-mentioned, the purifying processing device includes device noumenon, the first activated carbon filter layer, purification channel and second
Activated carbon filter layer；Described device ontology one end opens up environmental gas entrance, and the other end opens up purified gas outlet；The purification
First activated carbon filter layer and second activated carbon filter layer, described purification channel one end and the ring are set in channel
The connection of border gas access, the purification channel other end are connected to the purified gas outlet.
The present invention has substantive distinguishing features outstanding and significant progress compared with the prior art, and specifically, the present invention mentions
A kind of new gas detector with self-cleaning function, including ETO sensor body and collecting sensor signal module have been supplied,
It further include self-stripping unit；The self-stripping unit includes purifying processing device, gas path switching device and pump means；It is described net
Change processing unit and generation clean gas is filtered to environmental gas to be measured；The gas path switching device realizes that gas circuit switches function
Can, the pump means is as exhaust portion；The collecting sensor signal module, according to real-time collected environment gas to be measured
Body output test result；The detection that environmental gas to be measured can be realized, also can be generated clean gas, to ETO sensor body
It is cleaned, substantially prolongs the service life of ETO sensor, improve detection sensitivity；It is with design science, practicability
By force, the advantages of production cost is low and long service life.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention.
Fig. 2 is the structural schematic diagram of purifying processing device of the invention.
Fig. 3 is circuit theory schematic diagram of the invention.
In figure: 1.ETO sensor body；2. pump means；3. the first gas circuit；4. change-over valve；5. third gas circuit；6. the
Two gas circuits；7. purifying processing device；71. the first activated carbon filter layer；72. the second activated carbon filter layer；73. purification channel.
Specific embodiment
Below by specific embodiment, technical scheme of the present invention will be described in further detail.
Embodiment 1
As shown in attached drawing 1- attached drawing 3, a kind of new gas detector with self-cleaning function, it includes ETO sensor body 1
It further include self-stripping unit with collecting sensor signal module；The self-stripping unit includes purifying processing device, gas circuit switching
Device and pump means 2；
The purifying processing device 7 is connected to, for being filtered life to environmental gas to be measured with gas path switching device sealing
At clean gas；
The gas path switching device includes the first gas circuit 3, the second gas circuit 6, third gas circuit 5 and change-over valve 4；First gas circuit
3, second gas circuit 6 is connected to the third gas circuit 5 by change-over valve sealing；First gas circuit 3 and the pump
The sealing connection of device 2 is inhaled, second gas circuit 6 is connected to the purifying processing device 7 sealing；
The pump means 2 is connected to the sealing of the air inlet of the ETO sensor body 1, for extract environmental gas to be measured or
Person's clean gas, and be transmitted in the ETO sensor body 1；
The collecting sensor signal module is connect with the ETO sensor body, obtains the ETO sensor body in real time
Collected environmental gas information to be measured, and output test result.
In use, the purifying processing device is filtered generation clean gas to environmental gas to be measured；The gas circuit is cut
Changing device realizes gas circuit handoff functionality, and clean gas or environmental gas to be measured are transmitted to ETO sensor body by selection；It is described
Pump means is as exhaust portion；The collecting sensor signal module can be plugged with the ETO sensor body and be connected,
To obtain the collected environmental gas information to be measured of the ETO sensor body, and then the result of output environment detection in real time.
The new gas detector with self-cleaning function can be realized the detection of environmental gas to be measured, also can be generated
Clean gas cleans ETO sensor body, substantially prolongs the service life of ETO sensor, and it is sensitive to improve detection
Degree.
Specifically, the pump means 2 include pump assembly and flame proof component, the pump assembly using electric air suction pump or
Vacuum pump；The Pump Suction Nozzle of the pump assembly is connected to first gas circuit 3 sealing, and the mouth that is pumped out of the pump assembly passes through institute
Flame proof component is stated to be connected to the sealing of the gas access of the ETO sensor body 1.
Specifically, the collecting sensor signal module includes controller, the controller is controlled to be connected with and is used for respectively
The display screen of output result is locally displayed, for providing the power supply circuit of supply voltage, the outside for connecting external equipment is connect
Mouthful, and for connecting wired or wireless communication module communication interface.
Embodiment 2
The present embodiment the difference from embodiment 1 is that: the change-over valve 4 use two-position three way magnetic valve, the two-position three way
Solenoid valve uses one-in-and-one-out formula.
Specifically, the two-position three way magnetic valve opens up interface I, interface II and interface III；The sealing of the interface I connection institute
The first gas circuit 3 is stated, for environmental gas to be measured or clean gas to be transmitted to the pump means 2；The interface II seals
It is connected to second gas circuit 6, is used for transmission clean gas；The interface III sealing is connected to the third gas circuit 5, be used for transmission to
Survey environmental gas.
Specifically, the two-position three way magnetic valve is divided into normally closed type (ZC2/3) and (ZC2/3K) open in usual:
The change-over valve 4 is normally closed type two-position three way magnetic valve: when electromagnetic valve coil is powered, the interface II is connected described
Interface I, the interface III are closed；At this point, clean gas is transmitted to the ETO sensor body 1 through the pump means 2, it is real
The self-cleaning function of the existing ETO sensor body 1.When electromagnetic valve coil power-off, the interface II is closed, the interface I
Connect the interface III；At this point, environmental gas to be measured is transmitted to the ETO sensor body 1 through the pump means 2, realize
The detection function of the ETO sensor body 1；
The change-over valve 4 is two-position three way magnetic valve open in usual, and when electromagnetic valve coil power-off, the interface III is connected described
Interface I, the interface II are closed；At this point, environmental gas to be measured is transmitted to the ETO sensor body through the pump means 2
1, realize the detection function of the ETO sensor body 1.When electromagnetic valve coil is powered, the interface III is closed, the interface
I connects the interface II；At this point, clean gas is transmitted to the ETO sensor body 1 through the pump means 2, described in realization
The self-cleaning function of ETO sensor body 1.
Embodiment 3
The present embodiment the difference from embodiment 1 is that: the purifying processing device 7 include device noumenon, the first active carbon filter
Layer 71, purification channel 73 and the second activated carbon filter layer 72；Described device ontology one end opens up environmental gas entrance, and the other end is opened
If purified gas outlet；First activated carbon filter layer 71 and second active carbon filtering are set in the purification channel 73
Layer 72, described purification channel one end is connected to the environmental gas entrance, the purification channel other end and the purification gas
Outlet.
For the ease of repair and replacement, first activated carbon filter layer 71 and second activated carbon filter layer 72 are removable
The active carbon filter plate of dress.The active carbon filter plate includes upper and lower two layers of folder net and the active carbon filtering between folder net
Core, the active carbon filtration core is by 6~8 lamellar active carbon nonwoven fabrics and the active carbon between sheet active carbon nonwoven fabric
Grain composition.
Embodiment 4
The present embodiment the difference from embodiment 1 is that: the controller is also connected with timing device, to sensor carry out the time spirit
Sensitivity compensation, improves sensor life-time.
Sensor internal built-in time sensitivity coefficient table (k1, k2, k3), time interval table (t1, t2, t3).According to spy
The time used length t for surveying device, when 6 months≤t < 12 months, concentration C after compensation '=C × k1 (C is actual concentrations)；
When 12 months≤t < 18 months, concentration C after compensation '=C × k2；When 18 months≤t < 24 months, concentration C after compensation '=C
×k3.Compensated concentration C ' it is the detectable concentration that detector is shown.
Finally it should be noted that: the above embodiments are merely illustrative of the technical scheme of the present invention and are not intended to be limiting thereof；To the greatest extent
The present invention is described in detail with reference to preferred embodiments for pipe, it should be understood by those ordinary skilled in the art that: still
It can modify to a specific embodiment of the invention or some technical features can be equivalently replaced；Without departing from this hair
The spirit of bright technical solution should all cover within the scope of the technical scheme claimed by the invention.
Claims (8)
1. a kind of new gas detector with self-cleaning function, including ETO sensor body and collecting sensor signal mould
Block, it is characterised in that: further include self-stripping unit；The self-stripping unit include purifying processing device, gas path switching device and
Pump means；
The purifying processing device is connected to, for being filtered life to environmental gas to be measured with gas path switching device sealing
At clean gas；
The gas path switching device includes the first gas circuit, the second gas circuit, third gas circuit and change-over valve；First gas circuit, institute
It states the second gas circuit and is connected to the third gas circuit by change-over valve sealing；First gas circuit and the pump means are close
Envelope connection, second gas circuit are connected to purifying processing device sealing；
The pump means is connected to the sealing of the air inlet of the ETO sensor body, for extract environmental gas to be measured or
Clean gas, and be transmitted in the ETO sensor body；
The collecting sensor signal module is connect with the ETO sensor body, obtains the ETO sensor body in real time
Collected environmental gas information to be measured, and output test result.
2. the new gas detector according to claim 1 with self-cleaning function, it is characterised in that: the pump inhales dress
It sets including pump assembly and flame proof component；The Pump Suction Nozzle of the pump assembly is connected to first gas circuit sealing, the pump assembly
The mouth that is pumped out be connected to by the gas access sealing of the flame proof component and the ETO sensor body.
3. the new gas detector according to claim 1 with self-cleaning function, it is characterised in that: at the purification
Managing device includes device noumenon, the first activated carbon filter layer, purification channel and the second activated carbon filter layer；Described device ontology one
End opens up environmental gas entrance, and the other end opens up purified gas outlet；Setting the first active carbon mistake in the purification channel
Filtering layer and second activated carbon filter layer, described purification channel one end are connected to the environmental gas entrance, and the purification is logical
The road other end is connected to the purified gas outlet.
4. the new gas detector according to claim 3 with self-cleaning function, it is characterised in that: described first is living
Property charcoal filter layer and second activated carbon filter layer be removable active carbon filter plate.
5. the new gas detector according to claim 4 with self-cleaning function, it is characterised in that: the active carbon
Filter plate includes upper and lower two layers of folder net and the active carbon filtration core between folder net, and the active carbon filtration core is by 6~8 layers
Sheet active carbon nonwoven fabric and the active carbon particle composition between sheet active carbon nonwoven fabric.
6. the new gas detector according to claim 1 with self-cleaning function, it is characterised in that: the reversal valve
Door uses two-position three way magnetic valve.
7. the new gas detector according to claim 1 with self-cleaning function, it is characterised in that: the sensor
Signal acquisition module includes controller, and the controller controls connection display screen, power supply circuit, external interface and communication respectively and connects
Mouthful.
8. the new gas detector according to claim 7 with self-cleaning function, it is characterised in that: the controller
It is also connected with timing device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811562438.3A CN109507249A (en) | 2018-12-20 | 2018-12-20 | A kind of new gas detector with self-cleaning function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811562438.3A CN109507249A (en) | 2018-12-20 | 2018-12-20 | A kind of new gas detector with self-cleaning function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109507249A true CN109507249A (en) | 2019-03-22 |
Family
ID=65753941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811562438.3A Pending CN109507249A (en) | 2018-12-20 | 2018-12-20 | A kind of new gas detector with self-cleaning function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109507249A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113219134A (en) * | 2021-05-11 | 2021-08-06 | 华中科技大学 | Gas detection device |
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| CN201324580Y (en) * | 2008-11-03 | 2009-10-14 | 宋志明 | Activated carbon filter |
| CN104406234A (en) * | 2014-09-26 | 2015-03-11 | 苏州博菡环保科技有限公司 | Air purifier with alarm function |
| CN205175984U (en) * | 2015-10-30 | 2016-04-20 | 河南汉威电子股份有限公司 | Area is from cleaning function's continuous tracer gas detector |
| CN106840781A (en) * | 2017-03-09 | 2017-06-13 | 中国农业大学 | The gas collecting and cleaning system of a kind of Electronic Nose |
| CN107328847A (en) * | 2017-08-31 | 2017-11-07 | 河北工业大学 | A kind of VOCs gas detecting systems and detection method |
| CN207816936U (en) * | 2018-02-26 | 2018-09-04 | 郑州跃创电子科技有限公司 | A kind of multifunctional gas detection gas path switching device |
| CN207908420U (en) * | 2018-02-02 | 2018-09-25 | 检易（厦门）科技有限公司 | A kind of electrochemical sensor formaldehyde testing equipment |
| CN209416965U (en) * | 2018-12-20 | 2019-09-20 | 汉威科技集团股份有限公司 | A kind of new gas detector with self-cleaning function |
-
2018
- 2018-12-20 CN CN201811562438.3A patent/CN109507249A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201324580Y (en) * | 2008-11-03 | 2009-10-14 | 宋志明 | Activated carbon filter |
| CN104406234A (en) * | 2014-09-26 | 2015-03-11 | 苏州博菡环保科技有限公司 | Air purifier with alarm function |
| CN205175984U (en) * | 2015-10-30 | 2016-04-20 | 河南汉威电子股份有限公司 | Area is from cleaning function's continuous tracer gas detector |
| CN106840781A (en) * | 2017-03-09 | 2017-06-13 | 中国农业大学 | The gas collecting and cleaning system of a kind of Electronic Nose |
| CN107328847A (en) * | 2017-08-31 | 2017-11-07 | 河北工业大学 | A kind of VOCs gas detecting systems and detection method |
| CN207908420U (en) * | 2018-02-02 | 2018-09-25 | 检易（厦门）科技有限公司 | A kind of electrochemical sensor formaldehyde testing equipment |
| CN207816936U (en) * | 2018-02-26 | 2018-09-04 | 郑州跃创电子科技有限公司 | A kind of multifunctional gas detection gas path switching device |
| CN209416965U (en) * | 2018-12-20 | 2019-09-20 | 汉威科技集团股份有限公司 | A kind of new gas detector with self-cleaning function |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113219134A (en) * | 2021-05-11 | 2021-08-06 | 华中科技大学 | Gas detection device |
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