CN209911181U

CN209911181U - Dust concentration sensor

Info

Publication number: CN209911181U
Application number: CN201920240829.7U
Authority: CN
Inventors: 张震宇
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-02-26
Filing date: 2019-02-26
Publication date: 2020-01-07
Anticipated expiration: 2029-02-26

Abstract

The utility model discloses a dust concentration sensor, including casing, laser dust concentration detector, sampling pump, casing inner chamber fixedly connected with places the recess, it is inside to be provided with to place the recess laser dust concentration detector with the sampling pump, the inside fixedly connected with circuit board of casing, install treater and pronunciation chip on the circuit board, the positive gomphosis of casing is provided with infrared inductor and speaker, place the inside radiator fan that is provided with of recess, place the inside fixedly connected with temperature detection sensor of recess, the inside alarm that is provided with of casing, the gomphosis is provided with liquid crystal display on the casing. The utility model has the advantages of simple and practical, detectable inside temperature, have alarming function, its mainly used dust concentration detects.

Description

Dust concentration sensor

Technical Field

The utility model relates to a sensor technical field, specific dust concentration sensor that says so.

Background

Coal is a main energy source in China, and makes great contribution to industrial development and national economy. Along with the expansion of production scale, the coal dust pollution condition is more and more serious. Coal dust belongs to dust, is generated in the links of coal mining, stockpiling, transportation, processing and utilization and the like, and forms one of main pollution sources of gas phase factors of an operation field. In the coal industry, almost all operations generate dust during coal production. Along with the increase of the mechanization degree of coal production and the continuous improvement of coal mining strength, the coal dust generation amount of each operation section such as rock drilling, blasting, loading and unloading, crushing, transportation and the like is greatly increased. Under the condition of no dustproof measures, the environment of a working place is seriously polluted, the body health of workers is harmed, and the safe production is influenced.

In China, pneumoconiosis is one of the major occupational diseases. And the coal dust is explosive and suspended in the air to reach a certain concentration, and the coal dust can explode if a heat source capable of igniting the coal dust exists. Coal dust explosion can cause serious accidents such as coal mine extra-large gas explosion. In coal mines, the consequences of coal dust explosion are more serious than gas explosion, and the former will generate a large amount of asphyxiating gas carbon dioxide and toxic gas carbon monoxide to cause the poisoning or death of miners; the latter mainly produces water vapor and carbon dioxide gas. Therefore, the method is particularly important for monitoring the coal mine dust.

The existing dust concentration sensor works for a long time, so that the internal temperature is too high, internal damage is easily caused after the temperature is too high, and the service life is shortened. Meanwhile, the existing sensor has no alarm function inside, so that workers cannot be effectively reminded of dust detection conditions and internal temperature conditions.

SUMMERY OF THE UTILITY MODEL

To the above-mentioned weak point that exists among the prior art, the utility model aims at providing a simple and practical, detectable inside temperature, dust concentration sensor who has alarming function.

The utility model discloses a realize that the technical scheme that above-mentioned purpose adopted is: a dust concentration sensor comprises a shell, a laser dust concentration detector and a sampling pump, wherein a groove is arranged in the shell, the laser dust concentration detector and the sampling pump are arranged in the groove, the sampling pump is connected with the laser dust concentration detector through a connecting pipeline, a gas outlet fixedly connected with gas outlet pipeline on the sampling pump penetrates through the shell to be communicated with the outside, the laser dust concentration detector is connected with a gas inlet pipeline, the gas inlet pipeline penetrates through the shell to be communicated with the outside, a circuit board is fixedly connected in the shell, a processor and a voice chip are installed on the circuit board, an infrared inductor is embedded and arranged on the front surface of the shell, a loudspeaker is arranged near the embedded and embedded of the infrared inductor, and the loudspeaker is connected with the voice chip through a data line, place the inside radiator fan that is provided with of recess, the casing back is corresponding radiator fan is provided with the thermovent, place the inside fixedly connected with temperature detection sensor of recess, the inside alarm that is provided with of casing, the gomphosis is provided with liquid crystal display on the casing, the treater pass through the data line respectively with laser dust concentration detector, sampling pump, radiator fan, temperature detect sensor, alarm, liquid crystal display, infrared inductor connect.

The two corresponding lateral surfaces of the shell are symmetrically hinged with two groups of handles, and the handles are provided with spongy cushions.

The shell is close to the display screen and is provided with a plurality of groups of control buttons and work indicating lamps, and the control buttons and the work indicating lamps are connected with the processor through data lines.

The end fixedly connected with grid net that the admission line is located the external world, admission line, connecting tube, pipeline of giving vent to anger with all adopt threaded connection between laser dust concentration detector, the sampling pump.

Fixedly connected with washing pipeline on the admission line, it passes to wash the pipeline the casing switches on with the external world, just be provided with automatically controlled valve and sintered filter on the washing pipeline, the automatically controlled valve pass through the data line with the treater is connected.

The utility model discloses following beneficial effect has:

1. the device is simple and practical in structure, the laser dust concentration detector and the sampling pump are both arranged in the placing groove, and the heat radiation fan is arranged in the placing groove to perform heat radiation work on the laser dust concentration detector and the sampling pump, so that damage to electronic components due to overhigh temperature caused by long-time work is avoided;

2. the device is also internally provided with a temperature detection sensor, a processor and an alarm, so that the dust concentration detected by the laser dust concentration detector can be transmitted to the processor, when the set concentration is reached, the processor can control the alarm to work to remind workers, the temperature detection sensor can detect the temperature in the placing groove, and when the temperature is too high, the alarm gives an alarm to avoid the too high temperature;

3. this device adopts the integrated design, carries simple to operate, simultaneously, is provided with liquid crystal display and shows dust concentration, detection temperature, and convenient more detects the observation, is provided with the pronunciation chip simultaneously and can report dust concentration, and is more humanized.

Drawings

FIG. 1 is a schematic view of the internal structure of the present invention;

fig. 2 is a schematic diagram of the external structure of the present invention.

In the figure: the device comprises a shell 1, a laser dust concentration detector 2, a sampling pump 3, a placement groove 4, a connecting pipeline 5, an air outlet pipeline 6, an air inlet pipeline 7, a processor 8, a cooling fan 9, a temperature detection sensor 10, an alarm 11, a liquid crystal display 12, a handle 13, a control button 14, a work indicator lamp 15, a grating net 16, a cleaning pipeline 17, an electric control valve 18, a sintering filter 19, a voice chip 20, an infrared sensor 21 and a loudspeaker 22.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. 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.

Referring to fig. 1 and 2, a dust concentration sensor includes a housing 1, a laser dust concentration detector 2, and a sampling pump 3, a housing 1 is fixedly connected to a housing groove 4, the laser dust concentration detector 2 and the sampling pump 3 are disposed in the housing groove 4, the sampling pump 3 is connected to the laser dust concentration detector 2 through a connecting pipe 5, an air outlet of the sampling pump 3 is fixedly connected to an air outlet pipe 6, the air outlet pipe 6 passes through the housing 1 and is conducted to the outside, the laser dust concentration detector 2 is connected to an air inlet pipe 7, the air inlet pipe 7 passes through the housing 1 and is conducted to the outside, a circuit board is fixedly connected to the housing 1, a processor 8 and a voice chip 20 are mounted on the circuit board, an infrared sensor 21 is disposed on the front of the housing 1 in an embedded manner, a speaker 22 is disposed near the infrared sensor 21 in an embedded manner, and the speaker 22 is connected to the voice, place the inside radiator fan 9 that is provided with of recess 4, the 1 back of casing is corresponding radiator fan 9 is provided with the thermovent, place the inside fixedly connected with temperature-detecting sensor 10 of recess 4, the inside alarm 11 that is provided with of casing 1, the gomphosis is provided with liquid crystal display 12 on the casing 1, treater 8 pass through the data line respectively with laser dust concentration detector 2, sampling pump 3, radiator fan 9, temperature-detecting sensor 10, alarm 11, liquid crystal display 12, infrared inductor 21 are connected.

In the utility model, two groups of handles 13 are connected with the corresponding hinges with symmetrical two side surfaces of the shell 1, the handle 13 is provided with a spongy cushion, and the handle 13 is convenient for the worker to take and place; a plurality of groups of control buttons 14 and work indicator lamps 15 are arranged on the shell 1 close to the display screen, the control buttons 14 and the work indicator lamps 15 are connected with the processor 8 through data lines, the control buttons 14 are convenient for controlling the device, and the work indicator lamps 15 can indicate the working state of the device; the end of the air inlet pipeline 7 positioned outside is fixedly connected with the grid net 16, so that outside impurities can be blocked, and the pipeline is prevented from being blocked due to entering the device, and the air inlet pipeline 7, the connecting pipeline 5 and the air outlet pipeline 6 are connected with the laser dust concentration detector 2 and the sampling pump 3 through threads, so that the air inlet pipeline 7, the air outlet pipeline 6, the connecting pipeline 5, the laser concentration detector and the sampling pump 3 can be disassembled, and the cleaning and the replacement are convenient; fixedly connected with washs pipeline 17 on the admission line 7, wash pipeline 17 and pass casing 1 and switch on with the external world, and wash and be provided with automatically controlled valve 18 and sintering filter 19 on the pipeline 17, automatically controlled valve 18 passes through the data line and is connected with treater 8, open automatically controlled valve 18, sintering filter 19 purifies the air simultaneously, the air after purifying is drawn by sampling pump 3 and is got into admission line 7 in proper order, laser dust concentration detector 2, connecting tube 5, sampling pump 3, thereby wash it.

The utility model discloses a theory of operation is: when the dust concentration detector is used, the sampling pump 3 is controlled to work through the control button 14, after the sampling pump 3 works, air enters the laser dust concentration detector 2 through the air inlet pipeline 7, the laser dust concentration detector 2 detects the dust concentration in the air, detection data are transmitted to the processor 8, the processor 8 transmits the detection data to the liquid crystal display 12 for display, the temperature detection sensor 10 detects the temperature in the placing groove 4 and displays the temperature on the liquid crystal display 12 through the processor 8, when the detected temperature is too high, the alarm 11 gives an alarm, meanwhile, the processor 8 controls the cooling fan 9 to be started for cooling operation, and when the dust concentration detected by the laser dust concentration detector 2 reaches the concentration set by the processor 8, the alarm 11 gives an alarm;

when the staff was close to the device, infrared inductor 21 can respond to the staff to with sensor signal transfer to treater 8, treater 8 can convey the dust concentration signal of receiving to pronunciation chip 20, broadcast the dust concentration of this moment by pronunciation chip 20.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a dust concentration sensor, includes casing (1), laser dust concentration detector (2), sampling pump (3), its characterized in that: the laser dust concentration detector is characterized in that an inner cavity of the shell (1) is fixedly connected with a placement groove (4), the placement groove (4) is internally provided with the laser dust concentration detector (2) and the sampling pump (3), the sampling pump (3) is connected with the laser dust concentration detector (2) through a connecting pipeline (5), an air outlet fixedly connected with an air outlet pipeline (6) on the sampling pump (3), the air outlet pipeline (6) penetrates through the shell (1) to be communicated with the outside, the laser dust concentration detector (2) is connected with an air inlet pipeline (7), the air inlet pipeline (7) penetrates through the shell (1) to be communicated with the outside, a circuit board is fixedly connected with the inside of the shell (1), a processor (8) and a voice chip (20) are installed on the circuit board, and an infrared inductor (21) is embedded on the front surface of the shell (1), be close to infrared inductor (21) gomphosis is provided with speaker (22), speaker (22) pass through the data line with pronunciation chip (20) are connected, place inside radiator fan (9) that is provided with of recess (4), casing (1) back is corresponding radiator fan (9) are provided with the thermovent, place inside fixedly connected with temperature detect sensor (10) of recess (4), casing (1) inside is provided with alarm (11), the gomphosis is provided with liquid crystal display (12) on casing (1), treater (8) pass through the data line respectively with laser dust concentration detector (2), sampling pump (3), radiator fan (9), temperature detect sensor (10), alarm (11), liquid crystal display (12), infrared inductor (21) are connected.

2. A dust concentration sensor according to claim 1, wherein: two groups of handles (13) are hinged to the shell (1) symmetrically on two corresponding side surfaces, and spongy cushions are arranged on the handles (13).

3. A dust concentration sensor according to claim 1, wherein: the shell (1) is close to the display screen and is provided with a plurality of groups of control buttons (14) and work indicating lamps (15), and the control buttons (14) and the work indicating lamps (15) are connected with the processor (8) through data lines.

4. A dust concentration sensor according to claim 1, wherein: the gas inlet pipeline (7) is located outside end fixedly connected with grid net (16), the gas inlet pipeline (7), the connecting pipeline (5) and the gas outlet pipeline (6) are in threaded connection with the laser dust concentration detector (2) and the sampling pump (3).

5. A dust concentration sensor according to claim 1, wherein: fixedly connected with washs pipeline (17) on admission line (7), wash pipeline (17) and pass casing (1) switches on with the external world, just it is provided with electric control valve (18) and sintered filter (19) on pipeline (17) to wash, electric control valve (18) pass through the data line with treater (8) are connected.