CN104123812A - Convenient gas detector - Google Patents
Convenient gas detector Download PDFInfo
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- CN104123812A CN104123812A CN201410362480.6A CN201410362480A CN104123812A CN 104123812 A CN104123812 A CN 104123812A CN 201410362480 A CN201410362480 A CN 201410362480A CN 104123812 A CN104123812 A CN 104123812A
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- valve
- seal casinghousing
- motor
- air inlet
- inlet duct
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Abstract
The invention discloses a convenient gas detector. The convenient gas detector comprises a sealing housing made of transparent ceramics, the sealing housing is provided with an air change opening, a valve is arranged at the position of the air exchange opening, a hook is arranged on the side wall of the sealing housing, and the inner wall of the sealing housing is provided with a vibrator. The convenient gas detector has the advantage that due to the fact that the vibrator is arranged on the inner wall of the sealing housing, a worker can hang the device on his body, when abnormal conditions occur, the worker can sense the vibration and alarms cannot be missed.
Description
Technical field
The invention belongs to detector field, particularly relate to a kind of portable combustion gas detection instrument.
Background technology
Gas detector, combustible gas probe, it is that it is generally divided into catalytic type combustible gas probe and semiconductor combustible gas probe to detector single or many combustible gases concentration-response.
Catalytic type combustible gas probe is to utilize the resistance variations after the heating of refractory metal platinum filament to measure combustable gas concentration, in the time that inflammable gas enters detector, cause oxidation reaction (flameless burning) on platinum filament surface, the heat of its generation raises the temperature of platinum filament, and the resistivity of platinum filament just changes; The higher gas sensory element of sensitivity for semiconductor combustible gas probe, it runs into inflammable gas in working order time, and semiconductor resistor declines, and drop-out value and combustable gas concentration have corresponding relation.
In semiconductor combustible gas probe, gas sensory element senses is after inflammable gas, and resistance declines, the measurement of resistance value completes by circuit, be generally an electron device that resistance is constant of series connection, test respectively two terminal voltages on device, because electric current equates, be easy to calculate semi-conductive resistance, processor, according to transient resistance, calculates combustable gas concentration value, and shows on display, allow staff check, hummer is also set sometimes and reports to the police.
The housing of existing gas detector is all adopted made of plastic, when staff carries detector inspection, or while being fixed on the easy leak point of combustion gas, damage if there is electrical appliance wires, produce electric spark or electric arc, likely combustible gas is lighted, not only burn out gas detector, also can hurt staff, or the electric equipment of periphery, blast tube, cause great accident, existing employing ceramic shell is as seal insulation structure for electrothermal, but be generally only to stay an air hole ventilation, in the time going wrong, have automatic valve and automatically close air hole, at this moment, be positioned at the audible-visual annunciator of ceramic shell inside, staff is difficult to hear chimes of doom, when staff does not notice after light alarm, cannot know and where leak gas, thereby need to remove to change a detector surveys again, waste a large amount of time.
Summary of the invention
Object of the present invention is to overcome the deficiency of present technology, a kind of portable combustion gas detection instrument is provided, solve the gas detector of existing employing seal casinghousing, there is internal-combustion, cause inner sealing, the sound of sound and light alarm cannot transfer out, and staff does not note cannot determining gas leakage place, need to again survey the defect of the time of waste.
The present invention is achieved through the following technical solutions: portable combustion gas detection instrument, comprise the seal casinghousing 1 of a parcel gas detector 6, described seal casinghousing adopts crystalline ceramics to make, on described seal casinghousing, be provided with a scavenge port, scavenge port place is provided with a valve, valve is also for pottery is made, it is cylindric that valve is, valve coordinates with scavenge port size, and both are threaded, valve is by the driven by motor rotation of seal casinghousing inside, motor is installed in orbit, on the sidewall of valve, be provided with at least one air inlet duct, described air inlet duct bearing of trend is axial consistent with valve, and air inlet duct extends to the other end away from one end of motor from valve, the length of air inlet duct is less than the length of valve, the control end of motor is connected on a spark detector in seal casinghousing, on the sidewall of described seal casinghousing, be provided with a hook, on the inwall of seal casinghousing, be also provided with an electromagnetic shaker, the control end of electromagnetic shaker is connected on spark detector.Valve is generally to rotate to air inlet duct can get at seal casinghousing inside, at this moment air inlet duct will be communicated with inside and outside seal casinghousing, the gas sensory of seal casinghousing inside may detect outside gas situation, when the electronic device in seal casinghousing occurs aging, energising produces after spark, inner combustion gas meeting burning, spark detector can sense spark, can control at once machine operation, motor is by valve driven rotary, thereby make valve turn outside seal casinghousing, in air inlet duct reaches seal casinghousing, seal casinghousing is sealed.Burning in seal casinghousing can not have influence on outside, does not have great accident and occurs, and has protected staff.When staff goes on patrol, detection instrument is hung on belt by hook, detection instrument and staff's Body contact, in the time there is internal-combustion, staff sense at once, place is at this moment gas leakage place.
Further, on above-mentioned seal casinghousing, be provided with a handle, facilitate staff to carry.
Further, be provided with a cross recess on the end face of above-mentioned valve outside seal casinghousing, staff, by changing cutter, can be rotated valve, can, at valve-off at ordinary times, be generally overcast and rainy, prevents that internal electron instrument from making moist.
Further, above-mentioned track is fixed on the inwall of seal casinghousing, motor moves in orbit, be with movable valve to move, the axial direction that the direction that valve moves is valve, track is mainly the displacement producing while solving valve rotation, when valve is to inner rotary, be drive motor displacement, motor, because arrange in orbit, can not exert an influence to the movement of valve.
Described gas detector comprises gas sensory, resistance monitor, processor, display and audible-visual annunciator, the test side of resistance monitor connects gas sensory, its output is connected to processor, the output of processor connects display and audible-visual annunciator, this is a common gas sensing resistance formula gas detector, in gas sensory detecting air, whether there is combustion gas, in the time detecting, there is resistance variations, resistance monitor, the resistance value that gas sensory detected sends to processor, processor contrast resistance value is calculated current airborne gas content, and send on display and show, in the time that content reaches boundary, report to the police with audible-visual annunciator.
The invention has the beneficial effects as follows: this device adopts ceramic seal casinghousing, be not only insulation, but also be heat insulation, it is inner flashing, cause after burning, can not scald staff, air intake valve is helixseal, on valve wall, air inlet duct is set, air inlet duct length is less than valve, when valve is to turn in housing, after air inlet duct gets in housing, it is the inside and outside ventilation of housing, and valve turn outside housing, air inlet duct can be screwed out in housing, i.e. isolated air inlet, flame can not burn outside housing, thereby protect staff, this device is also provided with electromagnetic shaker on seal casinghousing inwall, with it staff hangs over device, when appearance situation, sense vibrations, can not leak warning.
Brief description of the drawings
Fig. 1 is seal casinghousing structural representation;
Fig. 2 is the broken away view of valve, motor, track;
Fig. 3 is the outer end structural representation of seal casinghousing;
Fig. 4 is the structural representation of gas detector;
In figure, 1-seal casinghousing, 2-motor, 3-track, 4-valve, 5-cross recess, 6-gas detector, 7-handle, 8-hook, 9-electromagnetic shaker, 10-spark detector, 101-scavenge port, 401-air inlet duct, 601-gas sensory, 602-resistance monitor, 603-processor, 604-display, 605-audible-visual annunciator.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail, but structure of the present invention is not limited only to following examples:
[embodiment]
As Figure 1-4, portable combustion gas detection instrument, comprise the seal casinghousing 1 of a parcel gas detector 6, described seal casinghousing 1 adopts crystalline ceramics to make, on described seal casinghousing 1, be provided with a scavenge port 101, scavenge port 101 places are provided with a valve 4, valve 4 is also for pottery is made, valve 4 is cylindric, valve 4 coordinates with scavenge port 101 sizes, and both are threaded, valve 4 is by motor 2 driven rotary of seal casinghousing 1 inside, motor 2 is arranged on track 3, on the sidewall of valve 4, be provided with at least one air inlet duct 401, described air inlet duct 401 bearing of trends are axial consistent with valve 4, and air inlet duct 401 extends to the other end away from one end of motor 2 from valve 4, the length of air inlet duct 401 is less than the length of valve 4, the control end of motor 2 is connected on a spark detector 10 in seal casinghousing 1, on the sidewall of described seal casinghousing 1, be provided with a hook 8, on the inwall of seal casinghousing 1, be also provided with an electromagnetic shaker 9, the control end of electromagnetic shaker 9 is connected on spark detector 10.Valve 4 is generally to rotate to air inlet duct 401 can get at seal casinghousing 1 inside, at this moment air inlet duct 401 is communicated with inside and outside seal casinghousing 1, the gas sensory of seal casinghousing 1 inside may detect outside gas situation, when the electronic device in seal casinghousing 1 occurs aging, energising produces after spark, inner combustion gas meeting burning, spark detector can sense spark, can control at once motor 2 works, motor 2 is by valve 4 driven rotary, thereby make valve 4 to the outer turn of seal casinghousing 1, in air inlet duct 401 reaches seal casinghousing 1, seal casinghousing 1 is sealed.Burning in seal casinghousing 1 can not have influence on outside, does not have great accident and occurs, and has protected staff.When staff goes on patrol, detection instrument is hung on belt by linking up with 8, detection instrument and staff's Body contact, in the time there is internal-combustion, staff sense at once, place is at this moment gas leakage place.
The track 3 of the present embodiment coordinates with motor 2, is and motor 2 torus of the same size, and it is fixed on seal casinghousing, and motor 2 can only be moved on bearing of trend, also can arrange and projection prevent motor 2 transfers on the outer wall of motor 2.
In the present embodiment, on seal casinghousing 1, be provided with a handle 7, facilitate staff to carry.
In the present embodiment, on the end face of valve 4 outside seal casinghousing 1, be provided with a cross recess 5, staff, by changing cutter, can be rotated valve 4, can, at valve-off 4 at ordinary times, be generally overcast and rainy, prevents that internal electron instrument from making moist.
The present embodiment middle orbit 3 is fixed on the inwall of seal casinghousing 1, motor 2 moves on track 3, be with movable valve 4 to move, the direction that valve 4 moves is the axial direction of valve 4, track 3 is mainly to solve the displacement producing when valve 4 rotates, when valve 4 is to inner rotary, i.e. and drive motor 2 displacements, motor 2, because be arranged on track 3, can not exert an influence to the movement of valve 4.
Described gas detector 6 comprises gas sensory 601, resistance monitor 602, processor 603, display 604 and audible-visual annunciator 605, the test side of resistance monitor 602 connects gas sensory 601, its output is connected to processor, the output of processor 603 connects display 604 and audible-visual annunciator 605, this is a common gas sensing resistance formula gas detector, in gas sensory 601 detecting airs, whether there is combustion gas, in the time detecting, there is resistance variations, resistance monitor 602 detects that the resistance value of gas sensory 601 sends to processor 603, processor 603 contrasts resistance value and calculates current airborne gas content, and send on display 604 and to show, in the time that content reaches boundary, report to the police with audible-visual annunciator 605.
Claims (5)
1. portable combustion gas detection instrument, it is characterized in that, comprise the seal casinghousing (1) of a parcel gas detector (6), described seal casinghousing (1) adopts crystalline ceramics to make, on described seal casinghousing (1), be provided with a scavenge port (101), scavenge port (101) locates to be provided with a valve (4), valve (4) is also for pottery is made, valve (4) is cylindric, valve (4) coordinates with scavenge port (101) size, and both are threaded, valve (4) is by inner motor (2) driven rotary of seal casinghousing (1), motor (2) is arranged on track (3), on the sidewall of valve (4), be provided with at least one air inlet duct (401), described air inlet duct (401) bearing of trend is axial consistent with valve (4), and air inlet duct (401) extends to the other end away from one end of motor (2) from valve (4), the length of air inlet duct (401) is less than the length of valve (4), the control end of motor (2) is connected on the spark detector (10) in seal casinghousing (1), on the sidewall of described seal casinghousing (1), be provided with a hook (8), on the inwall of seal casinghousing (1), be also provided with an electromagnetic shaker (9), the control end of electromagnetic shaker (9) is connected on spark detector (10).
2. portable combustion gas detection instrument according to claim 1, is characterized in that: on described seal casinghousing (1), be provided with a handle (7).
3. portable combustion gas detection instrument according to claim 1, is characterized in that: on the end face of described valve (4) outside seal casinghousing (1), be provided with a cross recess (5).
4. portable combustion gas detection instrument according to claim 1, it is characterized in that: described track (3) is fixed on the inwall of seal casinghousing (1), motor (2) is upper mobile at track (3), be with movable valve (4) mobile, the mobile direction of valve (4) is the axial direction of valve (4).
5. portable combustion gas detection instrument according to claim 1, it is characterized in that: described gas detector (6) comprises gas sensory (601), resistance monitor (602), processor (603), display (604) and audible-visual annunciator (605), the test side of resistance monitor (602) connects gas sensory (601), its output is connected to processor, and the output of processor (603) connects display (604) and audible-visual annunciator (605).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410362480.6A CN104123812B (en) | 2014-07-29 | 2014-07-29 | Portable combustion gas survey meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410362480.6A CN104123812B (en) | 2014-07-29 | 2014-07-29 | Portable combustion gas survey meter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104123812A true CN104123812A (en) | 2014-10-29 |
| CN104123812B CN104123812B (en) | 2016-09-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410362480.6A Active CN104123812B (en) | 2014-07-29 | 2014-07-29 | Portable combustion gas survey meter |
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| Country | Link |
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| CN (1) | CN104123812B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108154654A (en) * | 2017-12-23 | 2018-06-12 | 中山市得高行知识产权中心（有限合伙） | A kind of gas leakage alarm device based on smart home |
Citations (7)
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| CN87205183U (en) * | 1987-09-24 | 1988-05-04 | 四川石油管理局输气管理处 | Combustive gas detector |
| US4882576A (en) * | 1986-11-25 | 1989-11-21 | Monty Boyd | Remote combustible gas sensor |
| JPH07239097A (en) * | 1994-02-28 | 1995-09-12 | Yazaki Corp | Gas leakage detector |
| JP2004271436A (en) * | 2003-03-11 | 2004-09-30 | Osaka Gas Co Ltd | Gas sensor, gas alarm, and check gas storage container for inspecting gas sensor |
| CN201107068Y (en) * | 2007-09-30 | 2008-08-27 | 重庆前卫仪表厂 | Electronic type gas meter for household |
| CN101598701A (en) * | 2009-04-30 | 2009-12-09 | 薛亚明 | A kind of combustible gas detector |
| CN102879435A (en) * | 2012-09-28 | 2013-01-16 | 华瑞科学仪器(上海)有限公司 | Small-size explosion-proof sensor for inflammable gas |
-
2014
- 2014-07-29 CN CN201410362480.6A patent/CN104123812B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4882576A (en) * | 1986-11-25 | 1989-11-21 | Monty Boyd | Remote combustible gas sensor |
| CN87205183U (en) * | 1987-09-24 | 1988-05-04 | 四川石油管理局输气管理处 | Combustive gas detector |
| JPH07239097A (en) * | 1994-02-28 | 1995-09-12 | Yazaki Corp | Gas leakage detector |
| JP2004271436A (en) * | 2003-03-11 | 2004-09-30 | Osaka Gas Co Ltd | Gas sensor, gas alarm, and check gas storage container for inspecting gas sensor |
| CN201107068Y (en) * | 2007-09-30 | 2008-08-27 | 重庆前卫仪表厂 | Electronic type gas meter for household |
| CN101598701A (en) * | 2009-04-30 | 2009-12-09 | 薛亚明 | A kind of combustible gas detector |
| CN102879435A (en) * | 2012-09-28 | 2013-01-16 | 华瑞科学仪器(上海)有限公司 | Small-size explosion-proof sensor for inflammable gas |
Non-Patent Citations (2)
| Title |
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| 符俊贤 等: "可燃气自动检测与报警智能控制系统的设计", 《枣庄学院学报》 * |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108154654A (en) * | 2017-12-23 | 2018-06-12 | 中山市得高行知识产权中心（有限合伙） | A kind of gas leakage alarm device based on smart home |
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| Publication number | Publication date |
|---|---|
| CN104123812B (en) | 2016-09-14 |
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