CN211116131U

CN211116131U - Monitoring device for coal mine ventilation safety

Info

Publication number: CN211116131U
Application number: CN201922172742.3U
Authority: CN
Inventors: 张昌虎
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-12-06
Filing date: 2019-12-06
Publication date: 2020-07-28
Anticipated expiration: 2029-12-06

Abstract

The utility model discloses a monitoring device for coal mine ventilation safety, which comprises a gas collecting mechanism, an extracting mechanism and a warning mechanism, wherein the upper end of the gas collecting mechanism is connected with the extracting mechanism through a hose way, the extracting mechanism is connected with the warning mechanism, and the middle part of the extracting mechanism is connected with an air pump; the gas collection mechanism comprises a motor, a rotating shaft, a gas collection hard pipe, an air suction port and a U-shaped plate; the two ends of the U-shaped plate are rotatably connected with a rotating shaft through bearings, one end of the rotating shaft is connected with a motor, three gas collection hard tubes are fixedly connected onto the rotating shaft, and three equidistant air suction ports are formed in the gas collection hard tubes. The device collects the gas with different heights in the coal mine ventilation duct through the three gas collection hard pipes with different heights, so that the measurement is more accurate; the gas reaches certain volume and reaches appointed concentration in unit time and can trigger the warning of warning device, improves the degree of accuracy of warning.

Description

Monitoring device for coal mine ventilation safety

Technical Field

The utility model relates to a monitoring devices technical field especially relates to a monitoring devices for colliery ventilation safety.

Background

The basic task of mine ventilation is to supply enough fresh air underground to meet the requirement of personnel on oxygen, dilute harmful gas and dust underground and ensure safe production; the underground climate is adjusted, and a good working environment is created. In order to make the underground wind flow and distribute along the designated route, a ventilation facility which is a structure for guiding and controlling the wind flow must be built in some roadways, and the arrangement of a monitoring device in a coal mine ventilation channel for detecting the coal gas concentration is a necessary measure for the safety guarantee of workers at the bottom of a mine.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a monitoring devices for colliery ventilation safety possesses and measures accurately, and the problem among the prior art has been solved to the characteristics that the degree of accuracy is high.

In order to achieve the above object, the utility model provides a following technical scheme: a monitoring device for coal mine ventilation safety comprises a gas collecting mechanism, an extracting mechanism and a warning mechanism, wherein the upper end of the gas collecting mechanism is connected with the extracting mechanism through a hose, the extracting mechanism is connected with the warning mechanism, and the middle part of the extracting mechanism is connected with an air pump; the gas collection mechanism comprises a motor, a rotating shaft, a gas collection hard pipe, an air suction port and a U-shaped plate; two ends of the U-shaped plate are rotatably connected with a rotating shaft through bearings, one end of the rotating shaft is connected with a motor, three gas collection hard tubes are fixedly connected onto the rotating shaft, and three equidistant air suction ports are formed in the gas collection hard tubes; the extraction mechanism comprises a first cylinder, a second cylinder, a filter layer and a low-concentration exhaust port, the low-concentration exhaust port is arranged at the lower end of the first cylinder, an air pump is connected between the first cylinder and the second cylinder, and the filter layer is arranged in the middle of the first cylinder; the warning mechanism comprises a high-concentration exhaust port, a warning lamp and a coal gas concentration sensor, the coal gas concentration sensor is connected with the warning lamp, and one end of the second cylinder is connected with the high-concentration exhaust port.

Preferably, the gas collection hard pipe is connected with the second cylinder body through three hose lines.

Preferably, the hose line, the high-concentration exhaust port and the low-concentration exhaust port are provided with valves.

Preferably, the gas concentration sensor is installed at one end of the second cylinder, and one end of the gas concentration sensor extends to the middle of the second cylinder.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model discloses a monitoring devices for colliery ventilation safety collects the gas of co-altitude not in to the colliery ventiduct through the gas collection hard tube of three co-altitude, and rotating electrical machines drive rotation axis is rotatory, and the rotation axis drives the gas collection hard tube rotatory, realizes the mesh of collecting gas in co-altitude not different regions for it is more accurate to measure.

2. The utility model discloses a monitoring devices for colliery ventilation safety reaches certain volume in the coal gas of accumulating in the second inflator in the unit interval and just can touch coal gas consistency transmitter, and touches coal gas consistency transmitter and must reach appointed concentration and just can trigger the warning of warning device, improves the degree of accuracy of warning.

3. The utility model discloses a monitoring devices for colliery ventilation safety, the coal gas of low concentration discharges the colliery air duct again from the low concentration gas vent, and high concentration coal gas discharges to the external world through the high concentration gas vent, reduces the coal gas concentration of colliery air duct under the filterable effect of filter layer.

Drawings

FIG. 1 is an overall structure diagram of the present invention;

FIG. 2 is a structural diagram of the gas collecting mechanism of the present invention;

FIG. 3 is a structural diagram of the extracting mechanism of the present invention;

fig. 4 is a structural diagram of the warning mechanism of the present invention.

In the figure: 1. a gas collection mechanism; 11. a motor; 12. a rotating shaft; 13. a U-shaped plate; 14. a gas collection hard tube; 15. an air suction port; 2. an extraction mechanism; 21. a first cylinder; 22. a second cylinder; 23. a filter layer; 24. a low concentration exhaust port; 3. a warning mechanism; 31. a high concentration exhaust port; 32. a warning light; 33. a gas concentration sensor; 4. a hose line; 5. an air pump; 6. and (4) a valve.

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. 1-2, a monitoring device for coal mine ventilation safety comprises a gas collecting mechanism 1, an extracting mechanism 2 and a warning mechanism 3, wherein the upper end of the gas collecting mechanism 1 is connected with the extracting mechanism 2 through a hose passage 4, the extracting mechanism 2 is connected with the warning mechanism 3, and the middle part of the extracting mechanism 2 is connected with an air pump 5; the gas collecting mechanism 1 comprises a motor 11, a rotating shaft 12, a gas collecting hard tube 14, an air suction port 15 and a U-shaped plate 13; the both ends of U-shaped board 13 have rotation axis 12 through bearing swivelling joint, the one end of rotation axis 12 is connected with motor 11, three gas collection hard tubes 14 of fixedly connected with on the rotation axis 12, gas collection hard tube 14 is connected with second barrel 22 through three hose ways 4, hose way 4, high concentration gas vent 31 and low concentration gas vent 24 all are equipped with valve 6, whether valve 6 can the control duct's intercommunication, very big improvement security performance, and make the device normal operating, set up three equidistant induction port 15 on the gas collection hard tube 14.

Referring to fig. 3-4, the extracting mechanism 2 includes a first cylinder 21, a second cylinder 22, a filter layer 23 and a low concentration exhaust port 24, the lower end of the first cylinder 21 is provided with the low concentration exhaust port 24, an air pump 5 is connected between the first cylinder 21 and the second cylinder 22, and the middle of the first cylinder 21 is provided with the filter layer 23; the warning mechanism 3 comprises a high-concentration exhaust port 31, a warning lamp 32 and a gas concentration sensor 33, the gas concentration sensor 33 is installed at one end of the second cylinder 22, one end of the gas concentration sensor 33 extends to the middle of the second cylinder 22, low-concentration gas is discharged into a coal mine ventilation channel again from the low-concentration exhaust port 24 at the lower end of the first cylinder 21, the high-concentration gas is accumulated in the second cylinder 22, the gas concentration sensor 33 is touched by the amount reached in a certain time, the sensor gives a warning through flashing such as warning, if the amount of movement is not reached in a certain time, the gas concentration sensor 33 is closed, the high-concentration gas accumulated in the second cylinder 22 is discharged to the outside through the high-concentration exhaust port 31, the gas concentration sensor 33 is connected with the warning lamp 32, and one end of the second cylinder 22 is connected with the high-concentration exhaust port 31.

The working principle is as follows: the U-shaped plate 13 is vertically installed on the side wall of the coal mine ventilation duct, the air pump 5 simultaneously drives or singly drives the air suction ports 15 on the high, middle and low three gas collection hard pipes 14 to suck coal gas in the coal mine ventilation duct, the sucked coal gas enters the first cylinder 21 after passing through the second cylinder 22, after being filtered by the filter layer 23 of the first cylinder 21, the low-concentration gas is discharged into the coal mine ventilation duct again from the low-concentration exhaust port 24 at the lower end of the first cylinder 21, the high-concentration coal gas is accumulated in the second cylinder 22, the amount reached in a certain time touches the coal gas concentration sensor 33, the sensor gives a flash alarm through alarm and the like, if the amount of movement is not reached in a certain time, the coal gas concentration sensor 33 is closed, and the high-concentration coal gas accumulated in the second cylinder 22 is discharged to the outside through the high-concentration.

In summary, the following steps: the utility model discloses a monitoring devices for colliery ventilation safety collects the gas of different heights in the colliery air duct through three gas collection hard tubes 14 of different heights, and rotating electrical machines 11 drive rotation axis 12 and rotate, and rotation axis 12 drives the rotation of gas collection hard tube 14, realizes the purpose of collecting gas in different regions of different heights, makes the measurement more accurate; the gas accumulated in the second gas cylinder reaches a certain amount in unit time to touch the gas concentration sensor 33, and the gas concentration sensor 33 can trigger the warning of the warning device only when reaching the specified concentration, so that the warning accuracy is improved; the low-concentration coal gas is discharged into the coal mine air duct again from the low-concentration exhaust port 24, the high-concentration coal gas is discharged to the outside through the high-concentration exhaust port 31, and the coal gas concentration of the coal mine air duct is reduced under the filtering action of the filter layer 23.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a monitoring devices for colliery ventilation safety, includes gas collection mechanism (1), draws mechanism (2) and warning mechanism (3), its characterized in that: the upper end of the gas collection mechanism (1) is connected with an extraction mechanism (2) through a hose (4), the extraction mechanism (2) is connected with a warning mechanism (3), and the middle part of the extraction mechanism (2) is connected with an air pump (5); the gas collection mechanism (1) comprises a motor (11), a rotating shaft (12), a gas collection hard tube (14), a gas suction port (15) and a U-shaped plate (13); two ends of the U-shaped plate (13) are rotatably connected with a rotating shaft (12) through bearings, one end of the rotating shaft (12) is connected with a motor (11), three gas collection hard tubes (14) are fixedly connected to the rotating shaft (12), and three equidistant air suction ports (15) are formed in the gas collection hard tubes (14); the extraction mechanism (2) comprises a first cylinder (21), a second cylinder (22), a filter layer (23) and a low-concentration exhaust port (24), the low-concentration exhaust port (24) is arranged at the lower end of the first cylinder (21), an air pump (5) is connected between the first cylinder (21) and the second cylinder (22), and the filter layer (23) is arranged in the middle of the first cylinder (21); the warning mechanism (3) comprises a high-concentration exhaust port (31), a warning lamp (32) and a gas concentration sensor (33), the gas concentration sensor (33) is connected with the warning lamp (32), and one end of the second cylinder (22) is connected with the high-concentration exhaust port (31).

2. A monitoring device for coal mine ventilation safety according to claim 1, characterised in that: the gas collection hard pipe (14) is connected with a second cylinder (22) through three hose lines (4).

3. A monitoring device for coal mine ventilation safety according to claim 1, characterised in that: and the hose pipe (4), the high-concentration exhaust port (31) and the low-concentration exhaust port (24) are provided with valves (6).

4. A monitoring device for coal mine ventilation safety according to claim 1, characterised in that: the gas concentration sensor (33) is arranged at one end of the second cylinder (22), and one end of the gas concentration sensor (33) extends to the middle of the second cylinder (22).