CN208861445U - A kind of protected against explosion gas detector shell - Google Patents
A kind of protected against explosion gas detector shell Download PDFInfo
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- CN208861445U CN208861445U CN201821254597.2U CN201821254597U CN208861445U CN 208861445 U CN208861445 U CN 208861445U CN 201821254597 U CN201821254597 U CN 201821254597U CN 208861445 U CN208861445 U CN 208861445U
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- enclosure body
- gas detector
- protected against
- check valve
- against explosion
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Abstract
The embodiments of the present invention disclose a kind of protected against explosion gas detector shell, the protected against explosion gas detector shell includes enclosure body, cooling gas check valve, catch basin, flame sensor, control unit and negative-pressure air fan, enclosure body is prepared by metal material, it is cylinder for accommodating gas detector, cooling gas check valve is arranged in enclosure body, the open end of cooling gas check valve is towards in enclosure body, catch basin is arranged in enclosure body, at the top of gas detector, reservoir bases are hinged with sealing plate, flame sensor is arranged in enclosure body, control unit is arranged in enclosure body, it is communicatively coupled to flame sensor and sealing plate, negative-pressure air fan is located in enclosure body, the air intake vent of negative-pressure air fan is towards cooling gas check valve.The protected against explosion gas detector shell make gas detector using safer.
Description
Technical field
The utility model relates to security against fire fields, and in particular to a kind of protected against explosion gas detector shell.
Background technique
Gas detector, combustible gas probe, it be to single or many combustible gases concentration-response detector,
It is generally divided into catalytic type combustible gas probe and semiconductor combustible gas probe.
Catalytic type combustible gas probe is to measure fuel gas using the resistance variations after the heating of refractory metal platinum filament
Concentration causes oxidation reaction (flameless combustion) when fuel gas enters detector on platinum filament surface, and the heat generated makes platinum
The temperature of silk increases, and the resistivity of platinum filament just changes；The with higher sensitivity gas of semiconductor combustible gas probe
Sensitive semiconductor element, it encounters fuel gas, semiconductor resistor decline, drop-out value and combustable gas concentration in working condition
There is corresponding relationship.
In semiconductor combustible gas probe, after gas sensory element senses to imflammable gas, resistance decline, resistance
The measurement of value is then completed by circuit, and the constant electronic device of a resistance value of usually connecting is tested on two devices respectively
Voltage is held, because electric current is equal, it is easy to not calculate the resistance of semiconductor, for processor according to transient resistance, meter one calculates can
Combustion gas bulk concentration is planted, and is shown over the display, is allowed staff to check, is also provided with buzzer sometimes and alarms.
The shell of existing gas detector is all adopted made of plastic, and staff carries detector when patrolling distant and out of sight, Huo Zhegu
It when being scheduled on the easy leak point of combustion gas, is damaged if there is electrical appliance wires, generates electric spark or electric arc, it is possible to combustible gas is lighted,
Gas detector is not only burnt out, staff can be also hurt, combustion gas detonation will cause great accident.
Utility model content
To solve the above-mentioned problems in the prior art, the utility model provides protected against explosion gas detector shell,
For protected against explosion gas detector shell for accommodating gas detector, protected against explosion gas detector shell includes enclosure body, gas
Check valve, catch basin, flame sensor, control unit and negative-pressure air fan, the enclosure body are prepared by metal material, are
Cylinder is arranged in the enclosure body for accommodating the gas detector, the cooling gas check valve, the gas unidirectional
Towards in the enclosure body, the catch basin is arranged in the enclosure body for the open end of valve, is located at the combustion gas and detects
At the top of device, the reservoir bases are hinged with sealing plate, and the flame sensor is arranged in the enclosure body, the control
Unit is arranged in the enclosure body, is communicatively coupled to the flame sensor and the sealing plate, the negative-pressure air fan is set
In the enclosure body, the air intake vent of the negative-pressure air fan is towards the cooling gas check valve.
It further, further include castor, the castor is universal wheel, and the bottom of the enclosure body is arranged in.
It further, further include traction rope, one end of the traction rope is bundled in the enclosure body.
Further, further include shell side door, the shell side door is articulated with the shell side, the shell side door with
Gasket is provided between the shell.
It further, further include air hole, the air hole is provided at the top of the enclosure body, spiral shell at the air hole
Line is connected with sealing-plug.
Further, the cooling gas check valve includes ventilation pipe, fixed plate and articulated slab, is set on the outside of the ventilation pipe
It is equipped with screw thread, through-hole is offered on the side wall of the enclosure body, the cooling gas check valve is arranged by the screw thread described
In through-hole, one end of the fixed plate is fixedly connected on the ventilation pipe, and the middle part of the ventilation pipe is arranged in the other end,
It is articulated with the top of the fixed plate in the middle part of the articulated slab, is located at the fixed plate far from inside the enclosure body one
Side when parallel with the fixed plate, can be closed the ventilation pipe when the articulated slab is holded up.
It further, further include locating piece, the locating piece is arranged on the outer of the ventilation pipe.
It further, further include flowmeter, the flowmeter is arranged in the ventilation pipe, is communicatively coupled to the control
Unit processed.
Further, the cooling gas check valve is prepared by heat-resisting material.
Further, the enclosure body is prepared by aluminum material.
The utility model has the beneficial effects that:
1) the application whether there is gas leakage when detecting surrounding using gas detector by the setting of cooling gas check valve
When, under test gas only can unidirectionally be entered enclosure body by cooling gas check valve by negative-pressure air fan by gas, be visited by combustion gas
Survey device carries out detection to gas and judges whether there is gas leakage, when the combustion gas that gas detector failure is ignited in enclosure body
When, due to the setting of cooling gas check valve, the combustion gas that can not be ignited outside enclosure body makes protected against explosion gas detector shell
Play explosion-proof effect.
2) the application is by the setting of flame sensor and catch basin, when gas detector failure is ignited enclosure body
When interior combustion gas, flame sensor detects flame combustion, and control catch basin water outlet puts combustible gas out by water, is swift in response, prevents fire
Flame diffusion, causes major accident.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the embodiment of protected against explosion gas detector shell of the utility model；
Fig. 2 be a kind of cooling gas check valve of the embodiment of protected against explosion gas detector shell of the utility model, ventilation pipe,
Fixed plate, articulated slab, locating piece and flowmeter structural schematic diagram.
Description of symbols:
1- enclosure body；2- cooling gas check valve；3- catch basin；4- flame sensor；5- control unit；6- negative-pressure air fan；
7- sealing plate；8- castor；9- traction rope；10- sealing-plug；11- ventilation pipe；12- fixed plate；13- articulated slab；14- locating piece；
15- flowmeter；16- gas detector.
Specific embodiment
Technical solutions of the utility model are discussed in detail with reference to the accompanying drawing.
Embodiment 1
Fig. 1 is a kind of structural schematic diagram of the embodiment of protected against explosion gas detector shell of the utility model.Such as Fig. 1 institute
Show, which includes enclosure body 1, cooling gas check valve 2, catch basin 3, flame sensor 4, control list
Member 5 and negative-pressure air fan 6, the enclosure body 1 are prepared by metal material, to be cylindrical for accommodating the gas detector
16, the cooling gas check valve 2 is arranged in the enclosure body 1, and the open end of the cooling gas check valve 2 is towards the shell sheet
In body 1, the catch basin 3 is arranged in the enclosure body 1, is located at 16 top of gas detector, 3 bottom of catch basin
Portion is hinged with sealing plate 7, and the flame sensor 4 is arranged in the enclosure body 1, and described control unit 5 is arranged described
In enclosure body 1, it is communicatively coupled to the flame sensor 4 and the sealing plate 7, the negative-pressure air fan 6 is located at the shell
In ontology 1, the air intake vent of the negative-pressure air fan 6 is towards the cooling gas check valve 2.
Specifically, gas detector 16 is arranged in enclosure body 1, is needing to detect periphery with the presence or absence of fuel gas
When, open negative-pressure air fan 6, by extraneous gas introduce enclosure body 1, by built-in gas detector 16 detect whether exist can
Combustion gas body.When gas detector 16 sends failure, when causing combustion gas detonation, due to the setting of cooling gas check valve 3, flame can not draw
Combustion is located at the combustion gas outside enclosure body 1, avoids the generation of fire incident.Flame sensor 4 detects the generation of flame simultaneously,
Catch basin 3 can be opened by control unit 5, go out except the flame in enclosure body 1, avoid injury to personnel.
It further, further include castor 8, the castor 8 is universal wheel, and the bottom of the enclosure body 1 is arranged in.
Specifically, by the setting of castor 8, convenient for the movement of protected against explosion gas detector shell.
It further, further include traction rope 9, one end of the traction rope 9 is bundled in the enclosure body 1.
Specifically, gas leakage probability it is larger exist it is certain dangerous in the case where, staff can fire protected against explosion
Gas detector housing is placed on region to be measured, then withdraws protected against explosion gas detector shell by pulling traction rope 9, reads combustion
16 measurement result of gas detector, further ensures that the safety of staff.
It further, further include shell side door (not shown), the shell side door is articulated with the shell side, the shell
Gasket is provided between side door and the shell.
It further, further include air hole, the air hole is provided at the top of the enclosure body 1, at the air hole
It is threaded with sealing-plug 10.
Specifically, due to 6 working capability finite of negative-pressure air fan, in enclosure body 1 in the biggish situation of pressure, extraneous gas
Body can not enter enclosure body 1 by cooling gas check valve 2, screw lower sealing-plug 10 at this time, make air pressure in enclosure body 1 with
External air pressure balance is continuously in enclosure body 1 convenient for negative-pressure air fan 6 and provides under test gas.
Further, the cooling gas check valve 2 includes ventilation pipe 11, fixed plate 12 and articulated slab 13, the snorkel
11 are provided with screw thread on the outside of road, and through-hole is offered on the side wall of the enclosure body 1, and the cooling gas check valve 2 passes through the spiral shell
Line is arranged in the through-hole, and one end of the fixed plate 12 is fixedly connected on the ventilation pipe 11, and the other end is arranged in institute
The middle part of ventilation pipe 11 is stated, the middle part of the articulated slab 13 is articulated with the top of the fixed plate 12, is located at the fixed plate
12 far from 1 interior side of enclosure body, when the articulated slab 13 is holded up, when parallel with the fixed plate 12, can be closed
The ventilation pipe 11.
Specifically, as shown in Fig. 2, gas can when gas is via 1 inside of enclosure body is entered outside enclosure body 1
It pushes articulated slab 13 to rotate into enclosure body 1, subsequently enters inside enclosure body 1, when generating flame in enclosure body 1, press
In the case where power abruptly increase, pressure pushes articulated slab 13 to rotate to outside enclosure body 1, and the bottom of articulated slab 13 can be resisted against fixed plate
On 12, it can not continue to rotate, realize the sealing of cooling gas check valve 2, make gas that can only enter shell sheet by single direction
Body 1 makes flame that can not introduce outer combustion gas by cooling gas check valve 2.
It further, further include locating piece 14, the locating piece 14 is arranged on the outer of the ventilation pipe 11.
Specifically, the setting of locating piece 14 is installed on disassembly convenient for cooling gas check valve 2.
It further, further include flowmeter 15, the flowmeter 15 is arranged in the ventilation pipe 11, communication connection
In described control unit 5.
Specifically, by the setting of flowmeter 15, convenient for the concentration of combustion gas in detection under test gas.
Further, the cooling gas check valve 2 is prepared by heat-resisting material.
Specifically, the selection of heat-resisting material avoids flame from introducing cooling gas check valve 2.
Further, the enclosure body 1 is prepared by aluminum material.Aluminum material self weight is lighter while anti-oxidant
Property is stronger.
Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention, it is not limited to this
Utility model, although the utility model is described in detail with reference to the foregoing embodiments, for those skilled in the art
For, it is still possible to modify the technical solutions described in the foregoing embodiments, or to part of technical characteristic
It is equivalently replaced.Within the spirit and principle of the utility model, any modification, equivalent replacement, improvement and so on,
It should be included within the scope of protection of this utility model.
Claims (9)
1. a kind of protected against explosion gas detector shell, protected against explosion gas detector shell is for accommodating gas detector, feature
It is, the protected against explosion gas detector shell includes enclosure body, cooling gas check valve, catch basin, flame sensor, control list
Member and negative-pressure air fan, the enclosure body are prepared by metal material, to be cylindrical for accommodating the gas detector, institute
It states cooling gas check valve to be arranged in the enclosure body, the open end of the cooling gas check valve is towards in the enclosure body, institute
It states catch basin to be arranged in the enclosure body, be located at the top of the gas detector, the reservoir bases are hinged with sealing
Plate, the flame sensor are arranged in the enclosure body, and described control unit is arranged in the enclosure body, communication link
It is connected to the flame sensor and the sealing plate, the negative-pressure air fan is located in the enclosure body, the negative-pressure air fan
Air intake vent is towards the cooling gas check valve.
2. protected against explosion gas detector shell according to claim 1, which is characterized in that it further include castor, the castor
For universal wheel, the bottom of the enclosure body is set.
3. protected against explosion gas detector shell according to claim 1, which is characterized in that it further include traction rope, it is described to lead
One end of messenger is bundled in the enclosure body.
4. protected against explosion gas detector shell according to claim 1, which is characterized in that it further include shell side door, it is described
Shell side door is articulated with the shell side, is provided with gasket between the shell side door and the shell.
5. protected against explosion gas detector shell according to claim 1, which is characterized in that it further include air hole, it is described
Stomata is provided at the top of the enclosure body, is threaded with sealing-plug at the air hole.
6. protected against explosion gas detector shell according to claim 1, which is characterized in that the cooling gas check valve includes logical
Feed channel, fixed plate and articulated slab, the ventilation pipe outside are provided with screw thread, offer on the side wall of the enclosure body logical
Hole, the cooling gas check valve are arranged in the through-hole by the screw thread, and one end of the fixed plate is fixedly connected on described
Ventilation pipe, the other end are arranged in the middle part of the ventilation pipe, the top of the fixed plate are articulated in the middle part of the articulated slab
Portion, is located at the fixed plate far from the enclosure body interior side, parallel with the fixed plate when the articulated slab is holded up
When, the ventilation pipe can be closed.
7. protected against explosion gas detector shell according to claim 6, which is characterized in that it further include locating piece, it is described fixed
Position block is arranged on the outer of the ventilation pipe.
8. protected against explosion gas detector shell according to claim 1, which is characterized in that the cooling gas check valve is by resistance to height
Adiabator is prepared.
9. protected against explosion gas detector shell according to claim 1, which is characterized in that the enclosure body is by aluminum material
Material is prepared.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821254597.2U CN208861445U (en) | 2018-08-03 | 2018-08-03 | A kind of protected against explosion gas detector shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821254597.2U CN208861445U (en) | 2018-08-03 | 2018-08-03 | A kind of protected against explosion gas detector shell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208861445U true CN208861445U (en) | 2019-05-14 |
Family
ID=66413863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821254597.2U Active CN208861445U (en) | 2018-08-03 | 2018-08-03 | A kind of protected against explosion gas detector shell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208861445U (en) |
-
2018
- 2018-08-03 CN CN201821254597.2U patent/CN208861445U/en active Active
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