CN215333005U - A smoke detection device for mine electromechanical chamber - Google Patents
A smoke detection device for mine electromechanical chamber Download PDFInfo
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- CN215333005U CN215333005U CN202121462020.2U CN202121462020U CN215333005U CN 215333005 U CN215333005 U CN 215333005U CN 202121462020 U CN202121462020 U CN 202121462020U CN 215333005 U CN215333005 U CN 215333005U
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- 239000000779 smoke Substances 0.000 title claims abstract description 64
- 238000001514 detection method Methods 0.000 title claims abstract description 25
- 238000005070 sampling Methods 0.000 claims abstract description 227
- 238000010276 construction Methods 0.000 claims description 6
- 239000004973 liquid crystal related substance Substances 0.000 claims description 4
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims 1
- 230000000903 blocking effect Effects 0.000 claims 1
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- 239000000523 sample Substances 0.000 description 10
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
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- 238000012545 processing Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 239000002817 coal dust Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
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Abstract
本实用新型公开了一种矿井机电硐室用烟雾探测装置，包括采样主管、与采样主管连通的多个采样支管和烟雾探测器，所述采样支管上均开设有多个采样孔且设置有阀门；所述烟雾探测器包括第一抽气泵、过滤器、安装在激光室内的激光器、微处理器、第二抽气泵和四级报警器，所述第一抽气泵安装在激光室进气管路上，所述进气管路还设置有过滤器和进气单向阀，所述第二抽气泵安装在激光室出气管路上，所述出气管路上设置有出气单向阀；所述第一抽气泵、激光器、第二抽气泵和四级报警器均与微处理器电连接。本实用新型能够获得更接近硐室内用电设备处的烟雾值，发现早期火灾险情，对于矿井处理烟雾险情保留更多时间。
The utility model discloses a smoke detection device for a mine electromechanical chamber, comprising a sampling main pipe, a plurality of sampling branch pipes communicated with the sampling main pipe, and a smoke detector, wherein a plurality of sampling holes and valves are provided on the sampling branch pipes. ; The smoke detector includes a first air pump, a filter, a laser installed in the laser chamber, a microprocessor, a second air pump and a four-level alarm, and the first air pump is installed on the air inlet pipeline of the laser chamber, The air intake pipeline is also provided with a filter and an air intake check valve, the second air pump is installed on the air outlet pipeline of the laser chamber, and an air outlet check valve is arranged on the air outlet pipeline; the first air pump, The laser, the second air pump and the four-stage alarm are all electrically connected to the microprocessor. The utility model can obtain the smoke value closer to the indoor electric equipment, find the early fire danger, and reserve more time for the mine to deal with the smoke danger.
Description
Technical Field
The utility model relates to a smoke detection device, in particular to a smoke detection device for a mine electromechanical chamber.
Background
The fire outside the coal mine is caused by external heat sources (such as open fire, blasting, methane coal dust explosion, poor operation of electromechanical equipment, mechanical friction, current short circuit and the like). It can occur anywhere in the mine, but most often occurs in wellhead buildings, shafts, electromechanical chambers, gunpowder stores, and roadways or work surfaces in which electromechanical equipment is installed. However, the common point type smoke detection system passively waits for smoke to be diffused to the probe by spontaneous combustion, only displays an alarm value reaching a threshold value, does not display a state of failing to reach the alarm threshold value, generally only sets an alarm threshold value, has no early warning in the first few minutes of fire formation, can only be installed under a ceiling, cannot be horizontally installed, has no air return opening and capillary tube sampling mode, and is not suitable for damp type, dust, multiple changes and long-term smoke retention environments. In summary, the following steps: the coal industry urgently needs a monitoring system which has comprehensive functions, high safety and accurate early warning in the early stage of mine fire.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem of providing a smoke detection device for a mine electromechanical chamber aiming at the defects of the prior art. The detection device is provided with a plurality of sampling pipes in the mine electromechanical chamber and the cabinet, is used for detecting smoke gas which is easy to generate when the cabinet, the transformer, the high-voltage motor, main electromechanical equipment for mine construction and a cable in the mine electromechanical chamber catch fire, can obtain a smoke value which is closer to the actual smoke value in the mine electromechanical chamber, is provided with a four-stage alarm, can give early warning in advance, and can reserve more time for mine personnel to deal with smoke dangerous cases.
In order to solve the technical problems, the utility model adopts the technical scheme that: a smog detecting device for a mine electromechanical chamber comprises a sampling pipe arranged in the mine sampling pipe electromechanical chamber, wherein the sampling pipe comprises a sampling main pipe, a first sampling branch pipe, a second sampling branch pipe, a third sampling branch pipe, a fourth sampling branch pipe and a fifth sampling branch pipe, wherein the first sampling branch pipe is communicated with the sampling main pipe, one end of the first sampling branch pipe penetrates into a cabinet arranged in the chamber, the second sampling branch pipe is communicated with the sampling main pipe, one end of the second sampling branch pipe is close to a transformer arranged in the chamber, one end of the third sampling branch pipe is close to a high-voltage motor arranged in the cabinet arranged in the chamber, the fourth sampling branch pipe is communicated with the sampling main pipe, one end of the fourth sampling branch pipe is close to electromechanical equipment for mine construction in the chamber, the fifth sampling branch pipe is communicated with the sampling main pipe and is close to and arranged along a cable in the chamber, a plurality of sampling holes are formed in the first sampling branch pipe, the second sampling branch pipe, the third sampling branch pipe, the fourth sampling branch pipe and the fifth sampling branch pipe, and a valve is arranged at a position communicated with the sampling main pipe, the open ends of the first sampling branch pipe, the second sampling branch pipe, the third sampling branch pipe, the fourth sampling branch pipe and the fifth sampling branch pipe are provided with pipe plugs, the two ends of the main sampling pipe are provided with pipe plugs, and the middle of the main sampling pipe is communicated with a smoke detector; the smoke detector comprises a first air pump, a filter, a laser, a microprocessor, a second air pump and a four-stage alarm, wherein the laser, the microprocessor, the second air pump and the four-stage alarm are arranged in a laser chamber; and the first air pump, the laser, the second air pump and the four-stage alarm are all electrically connected with the microprocessor.
Above-mentioned mine electromechanical chamber is with smog detecting device, its characterized in that: the sampling main pipe is arranged on the inner wall of the mine electromechanical chamber through a fixing clamp, and the sampling branch pipe is arranged on the machine cabinet through the fixing clamp.
Above-mentioned mine electromechanical chamber is with smog detecting device, its characterized in that: the microprocessor is also electrically connected with a display, and the display is arranged on the inner wall of the mine electromechanical chamber.
Above-mentioned mine electromechanical chamber is with smog detecting device, its characterized in that: and the sampling holes arranged on the sampling main pipe, the sampling branch pipe I, the sampling branch pipe II, the sampling branch pipe III, the sampling branch pipe IV and the sampling branch pipe V are arranged facing to the easy ignition point.
Above-mentioned mine electromechanical chamber is with smog detecting device, its characterized in that: the filter is a dual stage filter.
Above-mentioned mine electromechanical chamber is with smog detecting device, its characterized in that: and a sampling hole is formed in the pipe plug position of the sampling main pipe and the sampling branch pipe I, and the sampling holes in other positions are spaced by 1-4 m.
Above-mentioned mine electromechanical chamber is with smog detecting device, its characterized in that: the outer diameter of the sampling main pipe is 25mm, and the inner diameter of the sampling main pipe is less than 21 mm; the inner diameters of the first sampling branch pipe, the second sampling branch pipe, the third sampling branch pipe, the fourth sampling branch pipe and the fifth sampling branch pipe are all 5 mm; the diameter of the sampling hole is 2.5mm-4.0 mm.
Above-mentioned mine electromechanical chamber is with smog detecting device, its characterized in that: the sampling main pipe, the sampling branch pipe I, the sampling branch pipe II, the sampling branch pipe III, the sampling branch pipe IV and the sampling branch pipe V are all anti-flame U-PVC pipes.
Above-mentioned mine electromechanical chamber is with smog detecting device, its characterized in that: and the microprocessor is electrically connected with the valves of the first sampling branch pipe, the second sampling branch pipe, the third sampling branch pipe, the fourth sampling branch pipe and the fifth sampling branch pipe.
Above-mentioned mine electromechanical chamber is with smog detecting device, its characterized in that: the display is provided with a liquid crystal display panel and an indicator light.
Compared with the prior art, the utility model has the following advantages:
1. the sampling pipe is arranged in the chamber and is divided into a sampling main pipe, a sampling branch pipe I, a sampling branch pipe II, a sampling branch pipe III, a sampling branch pipe IV and a sampling branch pipe V, each sampling branch pipe is close to or extends into electric equipment in the chamber, such as a cabinet, a transformer, a high-voltage motor, main electromechanical equipment for mine construction and cables, and the sampling pipe has the advantages that a smoke sample in the chamber can be accurately sucked for smoke analysis, meanwhile, an independent valve is arranged on each branch pipe, the smoke sample can be sucked for one branch pipe, the smoke sample sucked for one branch pipe and close to the periphery of the branch pipe can be analyzed for regional detection, and the position of early fire can be more accurately predicted. The sampling is more in line with the actual environment, and the detection precision and accuracy are high.
2. The smoke detector is provided with the four-level alarm, the number of alarm threshold values in the same environment is four, namely, three advanced early warnings are sent before the fire alarm is sent out for the last time, and precious processing time is reserved for preventing unsafe accidents; four threshold values for early warning smoke content are set, so that early and accurate early warning can be performed on mine fire.
The technical solution of the present invention is further described in detail by the accompanying drawings and examples.
Drawings
FIG. 1 is a schematic view of the arrangement of sampling tubes and sampling manifolds according to the present invention.
Figure 2 is a schematic block circuit diagram of the smoke detector of the present invention.
Description of reference numerals:
1-sampling tube; 2-1-sampling branch pipe I; 2-sampling branch pipe two;
2-3-sampling branch pipe III; 2-4-sampling branch pipe four; 2-5 sampling branch pipes five;
3-a microprocessor; 4, a valve; 6-smoke detector;
7-a first air pump; 8-a laser; 10-a display;
11-four-level alarm; 12-second air pump.
Detailed Description
For a more clear understanding of the technical features, objects and effects of the present invention, embodiments of the present invention will now be described in detail with reference to the accompanying drawings.
As shown in figures 1 and 2, the sampling pipe comprises a sampling pipe arranged in an electromechanical chamber of the mine sampling pipe, wherein the sampling pipe comprises a sampling main pipe 1, a sampling branch pipe I2-1 which is communicated with the sampling main pipe 1 and one end of which penetrates into a cabinet arranged in the chamber, a sampling branch pipe II 2-2 which is communicated with the sampling main pipe 1 and one end of which is close to a transformer arranged in the chamber, a sampling branch pipe III 2-3 which is communicated with the sampling main pipe 1 and one end of which is close to a high-voltage motor arranged in the cabinet, a sampling branch pipe IV 2-4 which is communicated with the sampling main pipe 1 and one end of which is close to electromechanical equipment for mine construction in the chamber, and a sampling branch pipe V2-5 which is communicated with the sampling main pipe 1 and close to the sampling branch pipe II 2-2, the sampling branch pipe III 2-3, the sampling branch pipe IV 2-5, A plurality of sampling holes are formed in each of the four 2-4 sampling branch pipes and the five 2-5 sampling branch pipes, valves 4 are mounted at positions communicated and connected with the main sampling pipe 1, pipe plugs are arranged at the open ends of the first 2-1 sampling branch pipes, the second 2-2 sampling branch pipes, the third 2-3 sampling branch pipes, the fourth 2-4 sampling branch pipes and the fifth 2-5 sampling branch pipes, pipe plugs are arranged at two ends of the main sampling pipe 1, and a smoke detector 6 is communicated with the middle of the main sampling pipe 1; the smoke detector 6 comprises a first air pump 7, a filter, a laser 8 arranged in a laser chamber, a microprocessor 3, a second air pump 12 and a four-stage alarm 11, wherein the first air pump 7 is arranged on an air inlet pipeline of the laser chamber, the air inlet pipeline is also provided with the filter and an air inlet one-way valve, the second air pump 12 is arranged on an air outlet pipeline of the laser chamber, and the air outlet pipeline is provided with an air outlet one-way valve; the first air pump 7, the laser 8, the second air pump 12 and the four-stage alarm 11 are all electrically connected with the microprocessor 3. The laser 8 comprises a laser emitter and a light receiver, the laser emitter is provided with a solid laser source and emits laser, the smoke gas absorbs the laser, the light receiver receives and processes the absorbed laser, and the light receiver receives the data and then transmits the data to the microprocessor 3 in real time.
As a plurality of electric equipment are arranged in the mine electromechanical chamber, the electric equipment is easy to cause fire, and particularly in a mine, major safety accidents can be caused once the fire is not treated timely, so that the early fire detection of the electric equipment is very important, the application adopts a plurality of sampling pipes to be arranged in the mine underground chamber, a sampling branch pipe I2-1 penetrates into a cabinet arranged in the underground chamber to be used for absorbing smoke samples in the cabinet, a sampling branch pipe II 2-2 is arranged close to a transformer, a sampling branch pipe III 2-3 is arranged close to a high-voltage motor, a sampling branch pipe IV 2-4 is arranged close to the electromechanical equipment for mine construction, a sampling branch pipe V2-5 is arranged at the side along the cable arrangement direction in the underground chamber, a sampling port arranged on the branch pipe faces to a position on which fires, so that when smoke generated by the early fire occurs, the smoke can be sucked into the smoke detector 6 in time for smoke sample detection and analysis.
In this embodiment, the smoke detector 6 is installed on the inner wall of the chamber 13 in a wall-mounted manner, and the height from the bottom edge to the ground is 1.5 m.
In the embodiment, the sampling main pipe 1 is arranged on the inner wall of the mine electromechanical chamber through a fixing clamp, the sampling branch pipe I2-1 is arranged on the cabinet through the fixing clamp, and other sampling branch pipes are arranged close to the electric equipment and can be assembled at corresponding positions through the fixing clamp.
In this embodiment, the microprocessor 3 is further electrically connected with a display 10, and the display 10 is installed on the inner wall of the mine electromechanical chamber. The display 10 is provided with a liquid crystal display panel and an indicator light, and the indicator light is provided with a normal operation indicator light; the liquid crystal display panel displays information such as a light beam graph of the smoke content processed by the microprocessor, the current smoke value and the like.
In the embodiment, the sampling holes arranged on the sampling main pipe 1, the sampling branch pipe I2-1, the sampling branch pipe II 2-2, the sampling branch pipe III 2-3, the sampling branch pipe IV 2-4 and the sampling branch pipe V2-5 face the easy ignition point.
In this embodiment, the filter is a two-stage filter, the first stage of the two-stage filter filters out dust and dirt, and the second stage filters out suspended particles smaller than 0.3 micron in the air. A particularly useful model for a dual-stage filter is the VESSDA Weishida air sampling filter VSP-005.
In this embodiment, a sampling hole is formed in the pipe plug position of the main sampling pipe 1 and the first sampling branch pipe 2-1, and the sampling holes in other positions are spaced by 1 m-4 m.
In this embodiment, the outer diameter of the sampling main pipe 1 is 25mm, and the inner diameter is less than 21 mm; the inner diameters of the sampling branch pipe I2-1, the sampling branch pipe II 2-2, the sampling branch pipe III 2-3, the sampling branch pipe IV 2-4 and the sampling branch pipe V2-5 are all 5 mm; the diameter of the sampling hole is 2.5mm-4.0 mm.
In the embodiment, the sampling main pipe 1, the sampling branch pipe I2-1, the sampling branch pipe II 2-2, the sampling branch pipe III 2-3, the sampling branch pipe IV 2-4 and the sampling branch pipe V2-5 are all anti-flame U-PVC pipes.
In this embodiment, the microprocessor 3 is electrically connected with the valves of the first sampling branch pipe 2-1, the second sampling branch pipe 2-2, the third sampling branch pipe 2-3, the fourth sampling branch pipe 2-4 and the fifth sampling branch pipe 2-5, and the valves can be controlled to be opened and closed automatically by the microprocessor 3, so that a smoke gas sample near a certain branch pipe can be sucked in a targeted manner. The valve can adopt a solenoid valve.
In this embodiment, the sensitivity of the four-level alarm 11 is 0.005% obs/m-20% obs/m, the four-level alarm includes warning, action, fire alarm 1 and fire alarm 2, and the warning alarm: 0.005% -1.990% obs/m; and (4) action alarm: 0.010% -1.995% obs/m; fire alarm 1 alert: 0.015% -2.00% obs/m; fire alarm 2 alarm: 0.020% -20.00% obs/m.
The working principle of the smoke detection process of the embodiment is as follows: according to the fire occurrence condition of the electric appliance, which way needs to be detected, the valve of the corresponding branch can be opened, if whether the early fire occurrence condition exists in the cabinet is known, the valves of the second sampling branch 2-2, the third sampling branch 2-3, the fourth sampling branch 2-4 and the fifth sampling branch 2-5 are closed, the valve of the first sampling branch 2-1 is opened, and the smoke gas sample is collected through the sampling hole on the first sampling branch 2-1 and enters the smoke detector 6 for sample detection and analysis. The specific process is as follows: the microprocessor 3 controls the first air pump 7 to pump air, smoke gas samples in the underground chamber and the cabinet are absorbed through the plurality of sampling holes 4, then the smoke gas samples are filtered by the filter to be sent into the laser chamber, the laser 8 in the laser chamber detects the smoke gas samples (the smoke gas samples are irradiated by the high-stability laser source), the laser 8 obtains optical signals of the smoke gas samples to be transmitted to the microprocessor 3, the optical signals are output to the display 10 to display a light column diagram of smoke content after data processing, and once the smoke content reaches a set alarm threshold value through comparison, the four-stage alarm 11 gives an alarm. After the laser 8 detects the smoke gas sample, the microprocessor 3 controls the second air pump 12 to pump air out to discharge the gas in the laser chamber, so as to prevent the gas from polluting and interfering with the next measurement of the smoke gas sample. The smoke detection device of the embodiment samples and measures once at certain intervals, so that the effect of monitoring the fire of the electromechanical underground chamber of the mine in real time is achieved.
The foregoing detailed description of the utility model has been presented for purposes of illustration and description, and is intended to be by way of illustration only, the principles of the utility model and its application, as will be apparent to those skilled in the art, and the numerous modifications and variations can be made without departing from the principles of the utility model and these modifications and variations are within the scope of the utility model as defined in the appended claims.
Claims (10)
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121462020.2U CN215333005U (en) | 2021-06-30 | 2021-06-30 | A smoke detection device for mine electromechanical chamber |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202121462020.2U CN215333005U (en) | 2021-06-30 | 2021-06-30 | A smoke detection device for mine electromechanical chamber |
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| CN215333005U true CN215333005U (en) | 2021-12-28 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114842609A (en) * | 2022-03-18 | 2022-08-02 | 浙江华消科技有限公司 | Smoke detection system and smoke positioning method |
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- 2021-06-30 CN CN202121462020.2U patent/CN215333005U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114842609A (en) * | 2022-03-18 | 2022-08-02 | 浙江华消科技有限公司 | Smoke detection system and smoke positioning method |
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