CN110108839A - A kind of gas detector of single-chamber body band light alarm - Google Patents
A kind of gas detector of single-chamber body band light alarm Download PDFInfo
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- CN110108839A CN110108839A CN201910339837.1A CN201910339837A CN110108839A CN 110108839 A CN110108839 A CN 110108839A CN 201910339837 A CN201910339837 A CN 201910339837A CN 110108839 A CN110108839 A CN 110108839A
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- light
- guiding pillar
- explosion
- gas detector
- hole
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- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 22
- 238000001514 detection method Methods 0.000 claims abstract description 17
- 239000012528 membrane Substances 0.000 claims abstract description 8
- 239000003822 epoxy resin Substances 0.000 claims description 11
- 229920000647 polyepoxide Polymers 0.000 claims description 11
- 238000012360 testing method Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 5
- 230000003287 optical effect Effects 0.000 abstract description 5
- 238000005538 encapsulation Methods 0.000 abstract description 3
- 239000002808 molecular sieve Substances 0.000 abstract description 3
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 abstract description 3
- 239000000463 material Substances 0.000 abstract description 2
- 229920005989 resin Polymers 0.000 abstract description 2
- 239000011347 resin Substances 0.000 abstract description 2
- 238000004880 explosion Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 238000009738 saturating Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000012780 transparent material Substances 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003913 materials processing Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000004702 methyl esters Chemical class 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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
-
- 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
- G01N33/0062—General constructional details of gas analysers, e.g. portable test equipment concerning the measuring method or the display, e.g. intermittent measurement or digital display
- G01N33/0063—General constructional details of gas analysers, e.g. portable test equipment concerning the measuring method or the display, e.g. intermittent measurement or digital display using a threshold to release an alarm or displaying means
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Analytical Chemistry (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Physics & Mathematics (AREA)
- Combustion & Propulsion (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Emergency Alarm Devices (AREA)
- Fire-Detection Mechanisms (AREA)
Abstract
The present invention provides a kind of gas detector of single-chamber body band light alarm, by the way that groove is arranged on the shell of gas detector, and light-guiding pillar is set in through-hole in a groove, to which the optical signal of indicator light in cavity is transferred to the external world by light-guiding pillar, so that staff be made to judge gas detection result by observing optical signal.Resin encapsulation technique is added using embedded light-guiding pillar in a groove, signal light is can be realized and leads hull outside, meet anti-riot requirement, structure is simple, and space utilization rate is high, has utmostly saved space and material, easy to install and use reliable.The present invention passes through the inside lining waterproof ventilated membrane molecular sieve in flame proof piece, realize to be flame proof air permeable waterproof again, light-conductive hole is set on the light-guiding pillar pedestal of light-guiding pillar one end simultaneously, the indicator light in cavity is arranged in light-conductive hole, the light of indicator light can be made preferably to be transferred to containment portion.
Description
Technical field
The present invention relates to field of gas detection, and in particular to a kind of gas detector of single-chamber body band light alarm.
Background technique
The flame-proof type light alarm gas concentrations detectors in explosion gas environment are applied at present, due to by requirement of explosion proof pair
Explosion-proof casing volume, the limitation of the requirements such as original part propagation of explosion of breathing freely, and guide-lighting original part fixing intensity, generally can be by sensor sheet
Body, main body circuit and instruction indicator light three parts dispersion are placed in three independent flame proof cavitys, are held to reduce single flame proof cavity
Product reduces the energy level that explosion-proof casing itself is met, will cause the too fat to move heaviness of each section interface channel in this way, furthermore high
Processing cost annoyings always industry.
Such as application No. is 201010242148.8 Chinese invention patent applications to disclose a kind of " gas detection alarm
Buzzer, alarm lamp are provided separately in a cavity in the patent application by device ", and the cavity is passed through alarm and is connected
The side of explosion-resistant enclosure is arranged in part, this results in device complicated integral structure, and volume is larger, and the connection structure of multiple cavities
It is unfavorable for explosion-proof.
Summary of the invention
The present invention in view of the deficiencies of the prior art, to provide a kind of gas detector of single-chamber body band light alarm, specifically
Scheme is as follows:
A kind of gas detector of single-chamber body band light alarm, including explosion-proof casing, be provided on the explosion-proof casing case lid and
For the venthole that under test gas enters, the chamber for circuit unit and gas detection cell to be arranged is provided in the explosion-proof casing
Body, the venthole are provided with flame proof piece；
The outside setting of the explosion-proof casing is fluted, and through-hole is provided in the groove, is provided with light-guiding pillar in the through-hole,
Epoxy resin is provided in the groove；
The indicator light connecting with the circuit unit is provided in the cavity, the indicator light corresponds to the light-guiding pillar setting.
Further, setting is provided with light-guiding pillar, each light-guiding pillar in each through-hole there are three through-hole in the groove
It is provided with corresponding indicator light in the cavity.
Further, a through-hole is arranged, each there are three groove in the outside setting of the explosion-proof casing in each groove
Light-guiding pillar is provided in through-hole, each light-guiding pillar is provided with corresponding indicator light in the cavity.
Further, the one end of the light-guiding pillar in the cavity is provided with light-guiding pillar pedestal, the light-guiding pillar pedestal
It is mounted on the explosion-proof casing.
Further, the light-guiding pillar pedestal is bonded on the explosion-proof casing or is mounted on by bolt described explosion-proof
On shell.
Further, the venthole is provided with flame proof piece by necking, and it is saturating to be provided with waterproof on the inside of the flame proof piece
Air film.
Further, position corresponding with light-guiding pillar is provided with light-conductive hole on the light-guiding pillar pedestal, and the indicator light is set
It sets in the light-conductive hole.
Further, the light-guiding pillar and the epoxy resin constitute rivet-like.
Further, the cavity includes chamber A for installing the circuit unit and for installing the gas inspection
The internal diameter for surveying the chamber B, the chamber A of unit is greater than the internal diameter of the chamber B.
The present invention has substantive distinguishing features outstanding and significant progress compared with the prior art, specifically, the present invention has
It has the advantage that
1, light-guiding pillar is arranged by the way that groove is arranged on the shell of gas detector, and in through-hole in a groove in the present invention, from
And the optical signal of indicator light in cavity is transferred to the external world by light-guiding pillar, so that staff be made to pass through observation optical signal judgement
Gas detection result.Resin encapsulation technique is added using embedded light-guiding pillar in a groove, signal light is can be realized and leads shell
Outside body, meet anti-riot requirement, structure is simple, and space utilization rate is high, has utmostly saved space and material, has installed and used
It is convenient and reliable；
2, the present invention realizes to be flame proof air permeable waterproof again, simultaneously by the inside lining waterproof ventilated membrane molecular sieve in flame proof piece
Light-conductive hole is set on the light-guiding pillar pedestal of light-guiding pillar one end, the indicator light in cavity is arranged in light-conductive hole, can make to refer to
Show that the light of lamp is preferably transferred to containment portion.
Detailed description of the invention
Fig. 1 is the sectional view of gas detector in the embodiment of the present invention 1；
Fig. 2 is the structural schematic diagram of light-guiding pillar in the embodiment of the present invention 1；
Fig. 3 is the structural schematic diagram of light-guiding pillar in the embodiment of the present invention 2；
In figure: 1. explosion-proof casings；2. case lid；3. gas detection cell；4. waterproof ventilated membrane；5. circuit unit；6. battery；7.
Sealing ring；8. indicator light；9. light-guiding pillar；10. epoxy resin；11. flame proof piece；12. screw hole；13. light-guiding pillar pedestal；14. spiral shell
Hole；15. light-conductive hole；16. light-guiding pillar；17. light-guiding pillar；18 light-guiding pillars；19. screw hole；20. light-guiding pillar pedestal；21. screw hole；22. leading
Unthreaded hole.
Specific embodiment
Below by specific embodiment, technical scheme of the present invention will be described in further detail.
Embodiment 1
As shown in Figure 1, gas detector includes explosion-proof casing 1 in the present embodiment, explosion-proof casing 1 is circle, is set in explosion-proof casing 1
It is equipped with cavity, cavity is divided into first chamber and second chamber, and the internal diameter of first chamber is greater than the internal diameter of second chamber, such as Fig. 1 institute
Show, first chamber is for installing circuit unit 5, and second chamber is for installing gas detection cell 3；Pass through spiral shell on explosion-proof casing 1
Line is provided with case lid 2, and sealing ring 7 is provided between case lid 2 and explosion-proof casing 1.
Second chamber is provided with venthole, as shown in Figure 1, the opening of venthole is provided with flame proof piece by necking down process
11, the inside of flame proof piece 11 is provided with waterproof ventilated membrane 4, and the top of waterproof ventilated membrane 4 is provided with gas detection cell 3, the gas
Body detection unit 3 is used to detect the ingredient for the gas for entering cavity from venthole, to realize detection of gas.Gas detection cell
3 are connected with circuit unit 5, and circuit unit 5 is a circuit board in the present embodiment, are provided with processing circuit, power supply on circuit board
The routes such as circuit.It is additionally provided with battery 6, for powering for gas detector.
As shown in Figure 1, being provided with circular groove close to the position of venthole in the outside of explosion-proof casing 1, it is arranged in groove
There is connection extraneous and the through-hole of inside cavity, the diameter of through-hole is less than the diameter of groove, in other embodiments, groove and logical
The shape in hole is not limited to circle, uses other shapes can also be with, such as oval, rectangular etc..It is provided with light-guiding pillar 9 in through-hole, leads
Light beam 9 is arranged on light-guiding pillar pedestal 13 close to one end of inside cavity, as shown in Fig. 2, 12 Hes on light-guiding pillar pedestal 13 in Fig. 2
14 can also use it for light-guiding pillar pedestal 13 to be mounted on explosion-proof casing 1 for two screw holes in other embodiments
His installation form, such as gluing.Position corresponding with light-guiding pillar 9 is equipped with light-conductive hole on light-guiding pillar pedestal 13 in the present embodiment
15, the indicator light 8 connecting with circuit board is arranged in light-conductive hole 15, so that the light of indicator light 8 be enable preferably to pass through leaded light
Column 9 is transferred to outside.
In through-holes, the height of light-guiding pillar 9 is higher than groove floor to the setting of light-guiding pillar 9 in the present embodiment, is less than explosion-proof casing 1
Surface, which increases the length of light-guiding pillar 9, so that light transmitting is more preferable, while being provided with epoxy resin 10 in a groove, lead
Light beam and epoxy resin constitute rivet-like.Epoxy resin 10 is transparent material, is transmitted convenient for staff's observation by light-guiding pillar 9
The light to come over.In other embodiments, epoxy resin, such as polymethylacrylic acid can also be replaced using other transparent materials
Methyl esters.The concept for the upper and lower part mentioned in the present embodiment is defined with respect to shown in Fig. 1, is not represented and is used gas in practice
Above and below when bulk detector.
When in use, ambient atmos pass sequentially through the flame proof piece 11 and waterproof of venthole to gas detector in the present embodiment
Ventilated membrane 4 enters explosion-proof casing 1, and 3 pairs of the gas detection cell gas componants for entering cavity detect, and will test data hair
The processor on circuit board is given, gas detection cell 3 is provided with the corresponding sensor of gas to be detected.Processor is according to detection
Whether data control instructions lamp 8 is lighted, such as when detecting that a certain gas concentration is larger, then indicator light 8 is lighted, for reminding work
Pay attention to as personnel.
The cast aluminium that gas detection cell, circuit unit, indicator light three parts are placed on an entirety in the present embodiment is explosion-proof
In shell, case lid is fixed by threaded flame-proof type face, is integrated with it, by corresponding device miniature compact, by anti-
The accurate understanding of quick-fried standard is applied, and to light-guiding pillar, the ventilative original part fixed structure ingehious design of flame proof, realizes explosion-proof chamber net volume
The requirement of less than 100 cubic centimetres rank explosion-proof criterias, realizes external gas exchanges to perceive peripheral environment hazardous gas concentration,
And informed by the display of indicator light scene, so that the type equipment and materials processing cost is reduced 60%, the promotion of equipment protection grade is arrived
IP66。
Embodiment 2
The present embodiment the difference from embodiment 1 is that, the groove being arranged on explosion-proof casing 1 be not it is round, using oval or side
Shape, and it is provided with three through-holes in a groove, it is provided with light-guiding pillar in corresponding each through-hole, as shown in figure 3, including leading
Light beam 16, light-guiding pillar 17 and light-guiding pillar 18, three light-guiding pillars share a light-guiding pillar pedestal 20, are provided on light-guiding pillar pedestal 20
Two screw holes 19 and 21, for light-guiding pillar pedestal 20 to be mounted on shell 1.Pair of three light-guiding pillars on light-guiding pillar pedestal 20
It answers and is provided with light-conductive hole at position, light-guiding pillar 18 as shown in Figure 3 is provided with light-conductive hole 22.Three indicator lights point in the present embodiment
It Dai Biao not alarm, normal and failure, different lamps is controlled according to the testing result to gas and is lighted.
In other embodiments, the quantity of groove is not limited to one, can be three spaced grooves, leads simultaneously
The form of light beam can use likeness in form as shown in Figure 3, and the shape of a light-guiding pillar pedestal can also be arranged using a light-guiding pillar
Formula.And it in other embodiments, can also be not provided with light-guiding pillar pedestal, only light-guiding pillar is set in through-holes, light-guiding pillar exists
One end surrounding in groove is provided with epoxy resin, and such light-guiding pillar is also fixed in through-holes, while light-guiding pillar is in cavity
One end on light-conductive hole is set, indicator light is set in light-conductive hole, to ensure the transmitting of light.
For above-described embodiment when realizing that the sensor inside explosion-proof casing detects extraneous gas, gas has to pass through explosion-proof shell
Body enters cavity, and explosion-proof criteria requires explosion-proof casing when realizing ventilative body function, connects the hole of explosion-proof casing internal and external environment
Gap passage length has to be larger than established standards value, could not propagation of explosion, the present invention has hole to have certain thickness metal using one kind
Netted sintering sheet devices are fixed at venthole by necking down process, inside lining waterproof ventilated membrane molecular sieve, realize that flame proof is saturating
Gas waterproof.
When the optical signal outflow for realizing that the indicator light inside explosion-proof casing issues shows alarm to hull outside, above-mentioned reality
Example is applied using a kind of transparent engineering plastics light-guiding pillar, forms one with transparent epoxy resin encapsulation by explosion-proof criteria intensity requirement
Rivet-like solid zoarium realizes the light transmission of explosion-proof casing inside and outside.By minimizing component, it is bonded internal styling design layout, is had
Effect reduces explosion-proof casing internal capacity.
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 (9)
1. a kind of gas detector of single-chamber body band light alarm, including explosion-proof casing, case lid is provided on the explosion-proof casing
With the venthole entered under test gas, it is provided in the explosion-proof casing for circuit unit and gas detection cell to be arranged
Cavity, the venthole are provided with flame proof piece；
It is characterized by: the outside setting of the explosion-proof casing is fluted, it is provided with through-hole in the groove, is set in the through-hole
It is equipped with light-guiding pillar, is provided with epoxy resin in the groove；
The indicator light connecting with the circuit unit is provided in the cavity, the indicator light corresponds to the light-guiding pillar setting.
2. the gas detector of single-chamber body band light alarm according to claim 1, it is characterised in that: be arranged in the groove
There are three through-hole, it is provided with light-guiding pillar in each through-hole, each light-guiding pillar is provided with corresponding indicator light in the cavity.
3. the gas detector of single-chamber body band light alarm according to claim 1, it is characterised in that: the explosion-proof casing
Outside setting is arranged a through-hole, is provided with light-guiding pillar, each light-guiding pillar in each through-hole there are three groove in each groove
It is provided with corresponding indicator light in the cavity.
4. the gas detector of single-chamber body band light alarm according to claim 2 or 3, it is characterised in that: the light-guiding pillar
One end in the cavity is provided with light-guiding pillar pedestal, and the light-guiding pillar pedestal is mounted on the explosion-proof casing.
5. the gas detector of single-chamber body band light alarm according to claim 4, it is characterised in that: the light-guiding pillar pedestal
It is bonded on the explosion-proof casing or is mounted on the explosion-proof casing by bolt.
6. the gas detector of single-chamber body band light alarm according to claim 1, it is characterised in that: the venthole passes through
Necking is provided with flame proof piece, is provided with waterproof ventilated membrane on the inside of the flame proof piece.
7. the gas detector of single-chamber body band light alarm according to claim 5, it is characterised in that: the light-guiding pillar pedestal
Upper position corresponding with light-guiding pillar is provided with light-conductive hole, and the indicator light is arranged in the light-conductive hole.
8. the gas detector of single-chamber body band light alarm according to claim 1, it is characterised in that: the light-guiding pillar and institute
It states epoxy resin and constitutes rivet-like.
9. the gas detector of single-chamber body band light alarm according to claim 1, it is characterised in that: the cavity includes using
In the chamber A for installing the circuit unit and chamber B for installing the gas detection cell, the internal diameter of the chamber A is big
In the internal diameter of the chamber B.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910339837.1A CN110108839A (en) | 2019-04-25 | 2019-04-25 | A kind of gas detector of single-chamber body band light alarm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910339837.1A CN110108839A (en) | 2019-04-25 | 2019-04-25 | A kind of gas detector of single-chamber body band light alarm |
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| Publication Number | Publication Date |
|---|---|
| CN110108839A true CN110108839A (en) | 2019-08-09 |
Family
ID=67486792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910339837.1A Pending CN110108839A (en) | 2019-04-25 | 2019-04-25 | A kind of gas detector of single-chamber body band light alarm |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111650341A (en) * | 2020-06-19 | 2020-09-11 | 清华大学 | Online monitoring system for gas-phase pollutants of drainage pipe network |
| CN112067750A (en) * | 2020-09-10 | 2020-12-11 | 郑州美克盛世电子科技有限公司 | Probe capable of reducing humidity and detecting gas and novel gas detector |
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