Underground air door pneumatic control system

Abstract

An underground air door pneumatic control system belongs to the technical field of mine ventilation safety, can solve the problem that when an existing air door control system breaks down, an air supply system cannot be rapidly controlled to be opened and closed, and comprises an air door I, an air door II, an air source and a main air supply pipe, a control box I is installed on the inner side of the air door I, and a control box II is installed on the outer side of the air door I; a third control box is installed on the inner side of the second air door, a fourth control box is installed on the outer side of the second air door, and the air source is connected with the first control box, the second control box, the third control box and the fourth control box in parallel through a main air supply pipe. When the air door opening and closing device breaks down, a worker can operate the pressure relief valve at the corresponding position no matter where the worker is, and the air stopping gear is directly switched. And then the air door lacks air source pressure, the air cylinder is unlocked, manual opening / closing of the air door is achieved, after the air door is treated, the valve is directly pulled to the air opening gear, the function of the air door is recovered to be normal, and the requirement for normal underground traffic pedestrians is met.

Description

Technical Field

[0001] The utility model belongs to the technical field of mine ventilation safety, and in particular relates to an underground air door air control system. Background Art

[0002] In order to meet the needs of modern mines, all underground balanced dampers are currently required to be equipped with automatic devices to achieve automatic opening / closing of the dampers through wind power. Water accumulation in the underground air supply pipeline (more common during the rainy season) or other reasons can cause the damper automatic device to malfunction and fail to achieve automatic opening / closing. This requires temporarily shutting down the air supply system to restore the manual opening / closing of the damper. However, the air supply pipeline is relatively complex and has many valves, which are difficult for non-related personnel to identify, resulting in the damper being unable to open or close, seriously affecting normal traffic and pedestrian traffic. Utility Model Content

[0003] The utility model provides an underground air damper control system to solve the problem that the existing air damper control system cannot quickly control the opening and closing of the air supply system when a fault occurs.

[0004] In order to solve the above problems, the utility model adopts the following technical solutions:

[0005] An underground damper air control system, comprising damper 1, damper 2, an air source and a main air supply pipe installed in a tunnel, a control box 1 is installed inside the damper 1, a control box 2 is installed outside the damper 1, a control box 3 is installed inside the damper 2, a control box 4 is installed outside the damper 2, and the air source is connected in parallel to the control box 1, the control box 2, the control box 3 and the control box 4 respectively through the main air supply pipe;

[0006] A two-position five-way pneumatic reversing valve one is installed in the control box one, a two-position five-way pneumatic reversing valve two is installed in the control box two, a two-position five-way pneumatic reversing valve three is installed in the control box three, and a two-position five-way pneumatic reversing valve four is installed in the control box four. The main air supply pipe is respectively connected to the two-position five-way pneumatic reversing valve one, the two-position five-way pneumatic reversing valve two, the two-position five-way pneumatic reversing valve three, and the two-position five-way pneumatic reversing valve four.

[0007] Furthermore, the damper 1 includes a damper 1 left door and a damper 1 right door; the damper 2 includes a damper 2 left door and a damper 2 right door.

[0008] Furthermore, the left leaf door of damper one is controlled by a left cylinder of damper one, and the right leaf door of damper one is controlled by a right cylinder of damper one; the left leaf door of damper two is controlled by a left cylinder of damper two, and the right leaf door of damper two is controlled by a right cylinder of damper two.

[0009] Further, the control ports 1 of the two-position five-way pneumatic reversing valve 1 and the two-position five-way pneumatic reversing valve 2 are commonly connected to the air inlets of the damper 1 left cylinder and the damper 1 right cylinder;

[0010] The control ports 2 of the two-position five-way pneumatic reversing valve 1 and the two-position five-way pneumatic reversing valve 2 are commonly connected to the exhaust ports of the damper 1 left cylinder and the damper 1 right cylinder.

[0011] Further, the control box 1 is provided with a pressure relief valve 1, the control box 2 is provided with a pressure relief valve 2, the control box 3 is provided with a pressure relief valve 3, and the control box 4 is provided with a pressure relief valve 4;

[0012] The pressure relief valve 1, pressure relief valve 2, pressure relief valve 3 and pressure relief valve 4 are all connected in series to the main air supply pipe.

[0013] The beneficial effects of the utility model are as follows:

[0014] When the damper opening and closing device fails, the staff can operate the pressure relief valve at the corresponding position and directly turn it to the air stop position no matter where they are. Then the damper lacks air source pressure, the cylinder is unlocked, and the damper is manually opened / closed. After the damper is processed, the valve is directly turned to the air opening position, so that the function of the damper is restored to normal and normal traffic and pedestrian traffic are met underground.

[0015] Compared with the prior art, the utility model aims at improving the existing automatic damper air supply pipeline, which is relatively complex, has many valves, is difficult for non-related personnel to identify, and often fails to open or close the damper. An independent pressure relief device is installed, and the underground marking is obvious and easy to identify. At the same time, the operation is simple and the feasibility is strong. The independent pressure relief device is more stable, ensuring the normal and stable operation of the ventilation system, and at the same time ensuring the normal passage of personnel and vehicles. The frequency of failure of the damper device underground is reduced, and the cost of manual maintenance is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is the control principle diagram of the utility model;

[0018] Among them: 1-control box one; 2-pressure relief valve one; 3-damper one left cylinder; 4-damper one right cylinder; 5-control box two; 6-pressure relief valve two; 7-control box three; 8-pressure relief valve three; 9-damper two left cylinder; 10-damper two right cylinder; 11-control box four; 12-pressure relief valve four; 13-air source; 14-two-position five-way pneumatic reversing valve four; 15-main air supply pipe; 16-two-position five-way pneumatic reversing valve three; 17-two-position five-way pneumatic reversing valve two; 18-two-position five-way pneumatic reversing valve one; 19-damper one right leaf door; 20-damper one left leaf door; 21-damper two right leaf door; 22-damper two left leaf door; 23-alleyway. DETAILED DESCRIPTION

[0019] The utility model is further described with reference to the accompanying drawings.

[0020] like Figure 1 As shown, Figure 1 The direction is introduced, and the position relationship of the lane is that the left side is the inner side and the right side is the outer side.

[0021] An underground damper gas control system comprises a damper 1, a damper 2, an air source 13, and a main air supply pipe 15 installed in a tunnel, a control box 1 is installed inside the damper 1, a control box 2 5 is installed outside the damper 1, a control box 3 7 is installed inside the damper 2, and a control box 4 11 is installed outside the damper 2, the air source 13 is connected in parallel to the control box 1 1, the control box 2 5, the control box 3 7, and the control box 4 11 through the main air supply pipe 15,

[0022] A two-position five-way pneumatic reversing valve one 18 is installed in the control box one 1, a two-position five-way pneumatic reversing valve two 17 is installed in the control box two 5, a two-position five-way pneumatic reversing valve three 16 is installed in the control box three 7, and a two-position five-way pneumatic reversing valve four 14 is installed in the control box four 11. The main air supply pipe 15 is respectively connected to the two-position five-way pneumatic reversing valve one 18, the two-position five-way pneumatic reversing valve two 17, the two-position five-way pneumatic reversing valve three 16, and the two-position five-way pneumatic reversing valve four 14.

[0023] The damper 1 includes a damper 1 left door 20 and a damper 1 right door 19, and the damper 2 includes a damper 2 left door 22 and a damper 2 right door 21.

[0024] The damper-left leaf door 20 is controlled by the damper-left cylinder 3, and the damper-right leaf door 19 is controlled by the damper-right cylinder 4.

[0025] The second left leaf door 22 of the damper is controlled by the second left cylinder 9 of the damper, and the second right leaf door 21 of the damper is controlled by the second right cylinder 10 of the damper.

[0026] The control ports 1 of the two-position five-way pneumatic reversing valve 18 and the two-position five-way pneumatic reversing valve 2 17 are connected to the air inlets of the damper 1 left cylinder 3 and the damper 1 right cylinder 4.

[0027] The control ports 2 of the two-position five-way pneumatic reversing valve 18 and the two-position five-way pneumatic reversing valve 2 17 are connected to the exhaust ports of the damper 1 left cylinder 3 and the damper 1 right cylinder 4.

[0028] In this way, when the two-position five-way pneumatic reversing valve 18 and the two-position five-way pneumatic reversing valve 2 17 are opened, the control port 1 is connected to the air supply pipe, the damper left cylinder 3 and the damper right cylinder 4 are raised and work at the same time, and once the damper is opened, it can be opened in different directions at the same time by the different installation positions of the cylinders.

[0029] In this way, when the two-position five-way pneumatic reversing valve 18 and the two-position five-way pneumatic reversing valve 2 17 are closed, the control port 2 is connected to the air supply pipe, the left cylinder 3 of the damper 1 and the right cylinder 4 of the damper 1 retract at the same time, and the damper 1 is closed. By different installation positions of the cylinders, they can be opened in different directions at the same time.

[0030] A pressure relief valve 1 2 is provided on the control box 1, a pressure relief valve 2 6 is provided on the control box 2 5, a pressure relief valve 3 8 is provided on the control box 3 7, and a pressure relief valve 4 12 is provided on the control box 4 11.

[0031] The pressure relief valve 1 2 , pressure relief valve 2 6 , pressure relief valve 3 8 , and pressure relief valve 4 12 are all connected in series to the main air supply pipe 15 .

[0032] like Figure 1 As shown, pressure relief valve 1 2 and pressure relief valve 2 6 are installed on both sides of damper 1, and pressure relief valve 3 8 and pressure relief valve 4 12 are installed on both sides of damper 2. No matter where the staff is in the tunnel, when encountering a damper control system failure, they can find the corresponding pressure relief valve nearby and then operate it.

Claims

1. A downhole damper air control system, characterized in that: It comprises a damper 1, a damper 2, an air source (13) and a main air supply pipe (15) installed in a lane (23); a control box 1 (1) is installed inside the damper 1, a control box 2 (5) is installed outside the damper 1, a control box 3 (7) is installed inside the damper 2, and a control box 4 (11) is installed outside the damper 2; the air source (13) is connected in parallel to the control box 1 (1), the control box 2 (5), the control box 3 (7) and the control box 4 (11) respectively through the main air supply pipe (15); The control box 1 (1) is installed with a 2-position 5-way pneumatic reversing valve 1 (18), the control box 2 (5) is installed with a 2-position 5-way pneumatic reversing valve 2 (17), the control box 3 (7) is installed with a 2-position 5-way pneumatic reversing valve 3 (16), and the control box 4 (11) is installed with a 2-position 5-way pneumatic reversing valve 4 (14). The main air supply pipe (15) is respectively connected to the 2-position 5-way pneumatic reversing valve 1 (18), the 2-position 5-way pneumatic reversing valve 2 (17), the 2-position 5-way pneumatic reversing valve 3 (16), and the 2-position 5-way pneumatic reversing valve 4 (14).

2. A downhole damper air control system according to claim 1, characterized in that: The damper 1 comprises a damper 1 left door (20) and a damper 1 right door (19); the damper 2 comprises a damper 2 left door (22) and a damper 2 right door (21).

3. A downhole damper air control system according to claim 2, characterized in that: The damper first left leaf door (20) is controlled by a damper first left cylinder (3), and the damper first right leaf door (19) is controlled by a damper first right cylinder (4); the damper second left leaf door (22) is controlled by a damper second left cylinder (9), and the damper second right leaf door (21) is controlled by a damper second right cylinder (10).

4. A downhole damper air control system according to claim 3, characterized in that: The control ports 1 of the two-position five-way pneumatic reversing valve 1 (18) and the two-position five-way pneumatic reversing valve 2 (17) are commonly connected to the air inlets of the damper 1 left cylinder (3) and the damper 1 right cylinder (4); The control ports 2 of the two-position five-way pneumatic reversing valve 1 (18) and the two-position five-way pneumatic reversing valve 2 (17) are commonly connected to the exhaust ports of the damper 1 left cylinder (3) and the damper 1 right cylinder (4).

5. The underground damper air control system according to claim 1, characterized in that: The control box one (1) is provided with a pressure relief valve one (2), the control box two (5) is provided with a pressure relief valve two (6), the control box three (7) is provided with a pressure relief valve three (8), and the control box four (11) is provided with a pressure relief valve four (12); The pressure relief valve 1 (2), pressure relief valve 2 (6), pressure relief valve 3 (8) and pressure relief valve 4 (12) are all connected in series to the main air supply pipe (15).

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