CN209745938U - small-size formula combustible gas of depending on surveys alarm instrument - Google Patents
small-size formula combustible gas of depending on surveys alarm instrument Download PDFInfo
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- CN209745938U CN209745938U CN201920577181.2U CN201920577181U CN209745938U CN 209745938 U CN209745938 U CN 209745938U CN 201920577181 U CN201920577181 U CN 201920577181U CN 209745938 U CN209745938 U CN 209745938U
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Abstract
The embodiment of the utility model discloses a small-size depending on formula combustible gas surveys alarm instrument, including turbine shell and the combustible gas detection pipeline of tangential installation on turbine shell, turbine through micro motor drive is installed to the rotation of turbine shell, turbine shell just lies in the top of turbine and has seted up air inlet, install combustible gas detection probe on the inner wall of combustible gas detection pipeline, combustible gas detection probe includes probe shell and installs the sensor at probe shell and leads the air that detects to the combustible gas detection probe department through turbine rotation, and has driven the flow of near air and the discharge of the air after sensor detects, has enlarged the scope of detection, has strengthened the guarantee to workman personnel, and avoided the air after the detection to stay in gas detection probe and lead to the drawback that the detection precision receives the influence, has improved the precision of detection, has good practical significance.
Description
Technical Field
the embodiment of the utility model provides a relate to gaseous detection equipment technical field, concretely relates to small-size formula combustible gas of depending on surveys alarm instrument.
Background
Combustible gas means can ignite and be the material of gaseous state under normal atmospheric temperature and pressure, combustible gas can form the gas of premixing with air homogeneous mixing in certain concentration range, the gas of premixing meets the ignition source and can explode, and release a large amount of energy in the combustion process, because most combustible gas is colorless odorless, the people can't directly judge whether combustible gas takes place to leak, consequently in case leak, the people can't perceive, it explodes to meet naked light very easily, the danger coefficient is very high, user's personal safety has seriously threatened, combustible gas detection device can detect the concentration of combustible gas in the air, once surpassing the concentration upper limit, will send out the police dispatch newspaper, the probability that combustible gas explodes has effectively been reduced, improve factor of safety.
The existing combustible gas detecting instrument leads the gas to be detected to passively pass through the detecting element in the instrument, and has the disadvantages that:
(1) In narrow and closed spaces such as pipelines and the like, because the gas flow speed is very low, the phenomenon that the gas concentration in the space is not uniformly distributed is obvious, the concentration of the combustible gas detected by a traditional combustible gas detecting instrument is normal, but the concentration of the combustible gas is greatly changed in a very short distance, and if the gas is manually operated, a worker is likely to be poisoned and shocked;
(2) the gas detected by the traditional combustible gas detection instrument stays in the instrument for a long time, so that the detection precision of the instrument is influenced, and the error of detection data is large.
SUMMERY OF THE UTILITY MODEL
Therefore, the embodiment of the utility model provides a small-size formula combustible gas of depending on surveys alarm instrument draws to combustible gas test probe department through the air on every side of turbine to solve among the prior art because combustible gas test instrument measuring range is little and lead to the staff to take place dangerous problem easily when the operation.
In order to achieve the above object, the utility model discloses a following technical scheme:
The utility model provides a small-size formula combustible gas of depending on surveys alarm instrument, includes turbine shell and the combustible gas detection pipeline of tangential installation on turbine shell, turbine shell internal rotation is installed through micro motor driven turbine, turbine shell just is located the top of turbine and has seted up air intlet, install combustible gas test probe on combustible gas detection pipeline's the inner wall, combustible gas test probe includes the probe shell, installs the baffle that is equipped with the trompil in the probe shell middle-end, installs sensor, filter plate and the calibration gas of installing the other end in the probe shell near turbine shell one end and takes over at the probe shell middle-end.
Furthermore, an electronic element box is installed on the outer wall of the combustible gas detection pipeline, and a lithium battery, a buzzer and an alarm lamp are installed in the electronic element box.
further, the sensor is installed on the partition plate, and an air distribution hole plate is installed between the sensor and the filter plate.
Furthermore, the air distribution hole plate is provided with air through holes penetrating through two sides of the air distribution hole plate, the air distribution hole plate is internally provided with a calibration gas through hole communicated with the air through holes, and a calibration gas guide pipe communicated with the holes in the partition plate and the calibration gas through hole is arranged between the partition plate and the air distribution hole plate.
Furthermore, an exhaust hole communicated with the gas detection pipeline is formed in the inner wall of the probe shell between the partition plate and the gas distribution hole plate.
The utility model discloses an embodiment has following advantage:
(1) the turbine is driven to rotate by the micro motor, external air is sucked into the turbine shell by the rotating turbine through the air inlet positioned right above the turbine, then the air flows into the combustible gas detection pipeline communicated with the interior of the turbine shell through centrifugal force, the gas detection probe arranged in the combustible gas detection pipeline is used for detecting, when the concentration of the combustible gas exceeds the standard, the buzzer and the alarm lamp can give out prompting sound and light, the air in a larger range nearby can be detected in a shorter time by the actuation of the turbine, and the guarantee on the life safety of workers is enhanced;
(2) Air introduced by the turbine enters the probe shell after dust is filtered by the filter plate, then enters a space near the sensor through the air through hole and is detected by the sensor, and along with continuous introduction of the air, the detected air can be discharged through the exhaust hole communicated with the gas detection pipeline, and the gas flowing speed in the gas detection pipeline is higher than that in the probe shell, and the gas pressure in the probe shell is higher than that in the gas detection pipeline, so that the detected air can be discharged into the gas detection pipeline from the exhaust hole in time and then discharged, the defect that the detection precision is influenced due to the fact that the detected gas stays in the combustible gas detection probe is avoided, and the detection precision is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
The structure, ratio, size and the like shown in the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention has no technical essential significance, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy and the achievable purpose of the present invention.
In the present specification, the terms "upper", "lower", "left", "right", "middle", and the like are used for the sake of clarity only, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof are also considered to be the scope of the present invention without substantial changes in the technical content.
Fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a front view of the present invention;
Fig. 3 is the schematic structural diagram of the combustible gas detection probe of the present invention.
In the figure:
1-a turbine housing; 2-a gas detection pipeline; 3-a turbine; 4-a combustible gas detection probe; 5-an electronic component box; 6-air distribution hole plate; 7-air through holes; 8-calibrating the gas through-holes; 9-air vent; 10-a calibration gas conduit;
401-probe housing; 402-a separator; 403-a sensor; 404-filter plate; 405-calibration gas take over.
Detailed Description
The present invention is described in terms of specific embodiments, and other advantages and benefits of the present invention will become apparent to those skilled in the art from the following disclosure. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
as shown in fig. 1 and 2, the utility model discloses a small-size formula combustible gas of depending on surveys alarm instrument, install combustible gas detection pipeline 2 on turbine housing 1 including turbine housing 1 and tangential, turbine housing 1 internal rotation is installed through micro motor driven turbine 3, turbine housing 1 and the top that is located turbine 3 have seted up air intlet 11, install combustible gas test probe 4 on combustible gas detection pipeline 2's the inner wall, install electronic component box 5 on combustible gas detection pipeline 2's the outer wall, install lithium cell, bee calling organ and alarm lamp in the electronic component box 5.
The lithium cell can be for the micro motor power supply, rotate through micro motor drive turbine 3, the outside air suction turbine casing 1 is gone into to pivoted turbine 3 through the air intlet 11 that is located directly over it, then make the air flow in with the inside combustible gas detection pipe way 2 of intercommunication of turbine casing 1 in through centrifugal force, detect by installing gas test probe 4 in combustible gas detection pipe way 2, after combustible gas concentration exceeds standard, buzzer and alarm lamp then can send the sound and the light of suggestion.
the advantages of this arrangement are: the air in a larger range nearby can be detected in a shorter time, because the traditional combustible gas detection instrument passively leads the gas to pass through the detection element, only the combustible gas concentration in a small range can be detected, and because the gas flow speed is very slow, the phenomenon of uneven gas concentration distribution in the space is obvious, the traditional combustible gas detection instrument can detect that the combustible gas concentration is normal, but the concentration of the combustible gas can be greatly changed in a short distance, if under the condition of manual operation, workers are likely to be poisoned, shocked and the like, therefore, the turbine 3 is arranged to actively suck the air, the flow speed of the air nearby is accelerated, a larger amount of air can be detected in the same time, namely the concentration of the combustible gas in a larger range is detected, thereby avoiding the hidden troubles and further increasing the guarantee for the life safety of the workers.
The following is a detailed description of the combustible gas probe 4:
As shown in fig. 3, the combustible gas detection probe 4 comprises a probe shell 401, a partition plate 402 which is arranged in the middle end of the probe shell 401 and is provided with an opening, a sensor 403 which is arranged in one end of the probe shell 401 close to the turbine shell 1, a filter plate 404 and a calibration gas connecting pipe 405 which is arranged at the other end of the probe shell 401, the sensor 403 is arranged on the partition plate 402, an air hole plate 6 is arranged between the sensor 403 and the filter plate 404, an air through hole 7 penetrating through two sides of the air hole plate 6 is arranged on the air hole plate 6, and a calibration gas through hole 8 communicated with the air through hole 7 is arranged in the air distribution hole plate 6, a calibration gas guide pipe 10 communicated with the open hole on the partition plate 402 and the calibration gas through hole 8 is arranged between the partition plate 402 and the air distribution hole plate 6, and an exhaust hole 9 communicated with the gas detection pipeline 2 is arranged on the inner wall of the probe shell 401 between the partition plate 402 and the air distribution hole plate 6.
Air introduced by the turbine 3 enters the probe shell 401 after dust is filtered by the filter plate 404, then enters a space near the sensor 403 (catalytic sensor) through the air through hole 7 and is detected by the sensor 403, and the detected air is discharged through the exhaust hole 9 along with continuous introduction of the air, and because the gas flowing speed in the gas detection pipeline 2 is higher than that of the gas in the probe shell 401, the gas pressure in the probe shell 401 is higher than that of the gas in the gas detection pipeline 2, the detected air can be discharged into the gas detection pipeline 2 from the exhaust hole 9 in time and then is discharged, and the detection precision is improved.
when the accuracy of the combustible gas detection probe 4 is calibrated by using combustible gas with standard concentration, the combustible gas for calibration is introduced into the probe shell 401 through the calibration gas connecting pipe 405, flows into the calibration gas through hole 8 communicated with the air through hole 7 through the calibration gas guide pipe 10 connected between the partition plate 402 and the air distribution pore plate 6, flows into the sensor 403 through the calibration gas through hole 8, and the air through hole 7 is opposite to the head of the sensor 403, so that the air through hole 7, the calibration gas guide pipe 10 and the calibration gas through hole 8 are arranged in such a way, air to be detected and combustible gas for calibration can be fully contacted with the head of the sensor 403, and the detection accuracy of the sensor 403 can be improved.
Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (5)
1. A small-sized attached combustible gas detection alarm instrument comprises a turbine shell (1) and a combustible gas detection pipeline (2) tangentially installed on the turbine shell (1), it is characterized in that a turbine (3) driven by a micro motor is rotatably arranged in the turbine shell (1), an air inlet (11) is arranged above the turbine (3) and on the turbine shell (1), a combustible gas detection probe (4) is arranged on the inner wall of the combustible gas detection pipeline (2), the combustible gas detection probe (4) comprises a probe shell (401), a partition plate (402) which is arranged in the middle end of the probe shell (401) and is provided with an opening, a sensor (403) which is arranged in one end, close to the turbine shell (1), of the probe shell (401), a filter plate (404) and a calibration gas connecting pipe (405) which is arranged at the other end of the probe shell (401).
2. The small-sized attached type flammable gas detecting and alarming instrument according to claim 1, wherein an electronic component box (5) is installed on the outer wall of the flammable gas detecting pipe (2), and a lithium battery, a buzzer and an alarm lamp are installed in the electronic component box (5).
3. A small form-factor dependent flammable gas detection alarm apparatus according to claim 1 wherein the sensor (403) is mounted on a spacer plate (402) and an air vent plate (6) is mounted between the sensor (403) and the filter plate (404).
4. The small-sized attached combustible gas detection alarm instrument according to claim 3, wherein the air hole plate (6) is provided with air through holes (7) penetrating through two sides thereof, the air hole plate (6) is provided with calibration gas through holes (8) communicating with the air through holes (7), and a calibration gas conduit (10) communicating the opening of the partition plate (402) with the calibration gas through holes (8) is installed between the partition plate (402) and the air hole plate (6).
5. A small-sized attached type flammable gas detecting and alarming instrument according to claim 3, wherein the inner wall of the probe shell (401) between the partition plate (402) and the gas distribution hole plate (6) is provided with a gas discharge hole (9) communicated with the gas detection pipeline (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920577181.2U CN209745938U (en) | 2019-04-25 | 2019-04-25 | small-size formula combustible gas of depending on surveys alarm instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920577181.2U CN209745938U (en) | 2019-04-25 | 2019-04-25 | small-size formula combustible gas of depending on surveys alarm instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209745938U true CN209745938U (en) | 2019-12-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920577181.2U Active CN209745938U (en) | 2019-04-25 | 2019-04-25 | small-size formula combustible gas of depending on surveys alarm instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209745938U (en) |
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2019
- 2019-04-25 CN CN201920577181.2U patent/CN209745938U/en active Active
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