Mine ventilation resistance monitoring device based on intelligent ventilation system

Abstract

The utility model provides a kind of mine ventilation resistance monitoring device based on intelligent ventilation system, including the installation frame of detachably being arranged on the inner wall of drift section air port, the front and rear two ends opening of installation frame, first three ways and second three ways, pressure sensor and U-shaped differential pressure gauge, first hose, second hose, first steel pipe assembly, detachably being provided with the second steel pipe assembly of second hose outside being set in between the side end of installation frame and return airway air door second hose outside being set in.The mine ventilation resistance monitoring device based on intelligent ventilation system of the utility model can not only meet the basic needs of monitoring mine ventilation resistance, but also enable users to quickly and conveniently reinstall the detached hose into the steel pipe, thereby more fully meeting the needs of users.

Description

Technical Field

[0001] This utility model belongs to the field of coal mine ventilation technology, and specifically relates to a mine ventilation resistance monitoring device based on an intelligent ventilation system. Background Technology

[0002] Mine ventilation resistance measurement is an important part of ventilation safety management. Its purpose is to understand the distribution of mine ventilation resistance, provide a basis for equal pressure fire prevention in goaf areas, and simulate the ventilation system of roadway connection.

[0003] Existing mine ventilation resistance monitoring devices, while capable of monitoring ventilation resistance in mines, suffer from several drawbacks. The ventilation hoses connecting the monitoring structure to the intake and return airway doors are all fitted inside steel pipes. The steel pipes lack auxiliary structures to facilitate the installation and movement of the hoses. Consequently, during device maintenance, users cannot quickly and easily re-fit the hoses after disassembly, thus failing to fully meet user needs. Utility Model Content

[0004] In view of this, this utility model addresses the shortcomings of the existing technology by providing a mine ventilation resistance monitoring device based on an intelligent ventilation system. This device not only meets the basic requirement of monitoring mine ventilation resistance but also allows users to quickly and easily reinstall the disassembled hose into the steel pipe, thereby better meeting people's usage needs.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a mine ventilation resistance monitoring device based on an intelligent ventilation system, including a mounting frame detachably installed on the inner wall of the air inlet in a horizontal roadway section, with openings at both ends of the mounting frame, and a first tee and a second tee respectively penetrating through the side walls at both ends of the mounting frame, a pressure sensor and a U-shaped differential pressure gauge respectively installed on the top and bottom walls of the mounting frame, the two ends of the pressure sensor being connected to the first tee and the second tee respectively, the two ends of the pressure gauge being connected to the first tee and the second tee respectively, a first flexible hose detachably connected to the air inlet pipe on the air inlet roadway door is screwed onto the first tee, a second flexible hose detachably connected to the air return pipe on the air return roadway door is screwed onto the second tee, a first steel pipe assembly sleeved on the outside of the first flexible hose is detachably installed between the side end of the mounting frame and the air inlet roadway door, and a second steel pipe assembly sleeved on the outside of the second flexible hose is detachably installed between the side end of the mounting frame and the air return roadway door.

[0006] As a further improvement of this utility model, the first steel pipe assembly includes a first lower half steel pipe set on the air intake door, a first support frame set on the mounting frame for supporting and fixing the end of the first lower half steel pipe away from the air intake door, a first upper half steel pipe also being snapped onto the top of the first lower half steel pipe, and a first connecting bolt set on the first upper half steel pipe for screwing and fixing the first lower half steel pipe.

[0007] As a further improvement of this utility model, the second steel pipe assembly includes a second lower half steel pipe set on the air door of the return airway, a second support frame set on the mounting frame for supporting and fixing the end of the second lower half steel pipe away from the air door of the return airway, a second upper half steel pipe also being snapped onto the top of the second lower half steel pipe, and a second connecting bolt set on the second upper half steel pipe for screwing and fixing the second lower half steel pipe.

[0008] As a further improvement of this utility model, the first flexible hose is inserted into the air inlet pipe, and the connection between the first flexible hose and the air inlet pipe is also fixed by a first pipe clamp. A first sealing ring is also provided on the outer wall of the air inlet pipe. The first sealing ring can enhance the sealing performance of the connection between the first flexible hose and the air inlet pipe.

[0009] As a further improvement of this utility model, the second flexible hose is plugged into the return air duct, and the connection between the second flexible hose and the return air duct is further secured by a second pipe clamp. A second sealing ring is also provided on the outer wall of the return air duct. The second sealing ring enhances the sealing performance of the connection between the second flexible hose and the return air duct.

[0010] As a further improvement of this utility model, an installation plate is provided on the installation frame, and the installation plate is provided with installation bolts for fixing to the side wall of the ventilation opening in the horizontal tunnel section.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] Firstly, by installing pressure sensors and U-shaped differential pressure gauges on the frame, the air pressure difference in the mine ventilation system can be measured in real time and accurately, thus effectively reflecting the ventilation resistance status; the first and second tees connect to the inlet and outlet air pipes respectively, ensuring the comprehensiveness and accuracy of the measurement.

[0013] Secondly, the first flexible hose is connected to the air inlet pipe by a plug-in connection and is fixed and sealed by the first pipe clamp and the first sealing ring to ensure the tightness and stability of the connection; the second flexible hose is connected to the return air pipe by a similar structure and is connected and sealed by the second pipe clamp and the second sealing ring; the first steel pipe assembly and the second steel pipe assembly respectively include a lower half steel pipe and an upper half steel pipe, which are fastened by connecting bolts to form a complete steel pipe structure, which is used to protect the flexible hose and enhance the overall support performance.

[0014] Third, the detachable structure of the steel pipe assembly allows users to quickly disassemble the upper steel pipe and remove the hose for replacement or maintenance when the hose needs to be replaced or maintained, without having to dismantle the entire device; the first and second support frames effectively support the end of the steel pipe assembly, ensuring a stable and reliable connection between the hose and the steel pipe assembly. Attached Figure Description

[0015] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

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

[0017] Figure 2 For the present utility model Figure 1 A magnified schematic diagram of the structure of part A in the diagram;

[0018] Figure 3 This is a structural schematic diagram of the second flexible hose, return air duct, and second lower steel pipe of this utility model;

[0019] Figure 4 This is a structural schematic diagram of the second lower half steel pipe, the second upper half steel pipe, and the second connecting bolt of this utility model.

[0020] In the diagram: 101, mounting frame; 102, first tee; 103, second tee; 104, pressure sensor; 105, differential pressure gauge; 106, second hose; 107, mounting plate; 108, mounting bolt; 109, intake airway damper; 110, intake duct; 111, return airway damper; 112, return duct; 201, first lower half steel pipe; 202, first support frame; 203, first upper half steel pipe; 204, first connecting bolt; 301, second lower half steel pipe; 302, second upper half steel pipe; 303, second connecting bolt. Detailed Implementation

[0021] To better understand this utility model, the following embodiments further illustrate its content, but the scope of protection of this utility model is not limited to the embodiments described below. Numerous specific details are set forth in the following description to provide a more thorough understanding of this utility model. However, it will be apparent to those skilled in the art that this utility model can be practiced without one or more of these details.

[0022] like Figure 1 , 2As shown, a mine ventilation resistance monitoring device based on an intelligent ventilation system includes a mounting frame 101 detachably mounted on the inner wall of an air inlet in a horizontal roadway. The mounting frame 101 has openings at both its front and rear ends. A first tee 102 and a second tee 103 are respectively installed through the side walls at both ends of the mounting frame 101. A pressure sensor 104 and a U-shaped differential pressure gauge 105 are respectively installed on the top and bottom walls of the mounting frame 101. The two ends of the pressure sensor 104 are connected to the first tee 102 and the second tee 103, respectively, and the two ends of the differential pressure gauge are connected to the first tee 102. Connected to the second tee 103, the first tee 102 is screwed with a first flexible hose detachably connected to the air inlet pipe 110 on the air inlet damper 109. The second tee 103 is screwed with a second flexible hose 106 detachably connected to the return air pipe 112 on the return air damper 111. A first steel pipe assembly, sleeved on the outside of the first flexible hose, is detachably installed between the side end of the mounting frame 101 and the air inlet damper 109. A second steel pipe assembly, sleeved on the outside of the second flexible hose 106, is detachably installed between the side end of the mounting frame 101 and the return air damper 111. Both ends of the first flexible hose and the second flexible hose 106 are thinner than the middle, so that the first steel pipe assembly can effectively support the main body of the first flexible hose without affecting the connection between the end of the first flexible hose and the air inlet pipe 110 and the first tee 102. Similarly, the second steel pipe assembly can effectively support the main body of the second flexible hose 106 without affecting the connection between the end of the second flexible hose 106 and the air inlet pipe 110 and the first tee 102.

[0023] like Figure 1 , 2 As shown, the first steel pipe assembly includes a first lower steel pipe 201 installed on the air intake door 109. The mounting frame 101 is provided with a first support frame 202 for supporting and fixing the end of the first lower steel pipe 201 away from the air intake door 109. A first upper steel pipe 203 is also snapped onto the top of the first lower steel pipe 201. A first connecting bolt 204 is provided on the first upper steel pipe 203 for screwing and fixing the first lower steel pipe 201.

[0024] like Figure 1 , 3 As shown, the second steel pipe assembly includes a second lower steel pipe 301 installed on the return airway damper 111. The mounting frame 101 is provided with a second support frame for supporting and fixing the end of the second lower steel pipe 301 away from the return airway damper 111. A second upper steel pipe 302 is also snapped onto the top of the second lower steel pipe 301. A second connecting bolt 303 is provided on the second upper steel pipe 302 for screwing and fixing the second lower steel pipe 301.

[0025] The first flexible hose is inserted into the air inlet pipe 110, and the connection between the first flexible hose and the air inlet pipe 110 is also fixed by a first pipe clamp. A first sealing ring is also provided on the outer wall of the air inlet pipe 110. The first sealing ring can enhance the sealing performance of the connection between the first flexible hose and the air inlet pipe 110.

[0026] like Figure 2 As shown, the second flexible hose 106 is plugged into the return air duct 112. The connection between the second flexible hose 106 and the return air duct 112 is also secured by a second pipe clamp. A second sealing ring is also provided on the outer wall of the return air duct 112. The second sealing ring enhances the sealing performance of the connection between the second flexible hose 106 and the return air duct 112.

[0027] After the user fixes the mounting frame 101 to the side wall of the ventilation outlet in the flat section, the first support frame 202 supports the air inlet pipe 110, and the second support frame supports the return air pipe 112. Then, the first flexible hose is inserted into the air inlet pipe 110, and the first sealing ring ensures a significant seal at the connection between the first flexible hose and the air inlet pipe 110. The first pipe clamp is used to reinforce the connection between the first flexible hose and the air inlet pipe 110. Then, the second flexible hose 106 is inserted into the return air pipe 112, and the second sealing ring ensures a significant seal at the connection between the second flexible hose 106 and the return air pipe 112. The second pipe clamp is used to reinforce the connection between the second flexible hose 106 and the return air pipe 112.

[0028] Then, the first upper steel pipe 203 is snapped into the first lower steel pipe 201, and the first connecting bolt 204 passes through the side wall of the first upper steel pipe 203 and is screwed into the first threaded connection hole on the first lower steel pipe 201, completing the assembly of the first steel pipe assembly, protecting the first hose and enhancing its support performance; next, the second upper steel pipe 302 is snapped into the second lower steel pipe 301, and the second connecting bolt 303 passes through the side wall of the second upper steel pipe 302 and is screwed into the second threaded connection hole on the second lower steel pipe 301, completing the assembly of the second steel pipe assembly, protecting the second hose 106 and enhancing its support performance.

[0029] When the mine ventilation system is running, airflow enters the first flexible hose through the intake airway door 109, passes through the first tee 102, and enters the mounting frame 101. The airflow resistance is measured by the pressure sensor 104 and the U-shaped differential pressure gauge 105. The airflow then enters the second flexible hose 106 through the second tee 103 and is finally discharged through the return airway door 111.

[0030] Pressure sensor 104 and U-shaped differential pressure gauge 105 measure the wind pressure difference in real time and transmit the data to the intelligent ventilation system for monitoring and adjusting the mine ventilation status.

[0031] If the hose needs to be replaced or maintained, the first connecting bolt 204 can be separated from the first threaded connection hole, and the fixing at the connection between the first upper steel pipe 203 and the first lower steel pipe 201 can be released. Then the first upper steel pipe 203 can be removed. Then the second connecting bolt 303 can be separated from the second threaded connection hole, and the fixing at the connection between the second upper steel pipe 302 and the second lower steel pipe 301 can be released. Then the second upper steel pipe 302 can be removed. After that, the first hose and the second hose 106 can be quickly taken out for replacement or repair without dismantling the entire device.

[0032] This detachable design greatly simplifies the maintenance process, improves work efficiency, and ensures the continuous operation of the mine ventilation system.

[0033] According to another embodiment of the present invention, such as Figure 1 As shown, the mounting frame 101 is provided with a mounting plate 107, and the mounting plate 107 is provided with mounting bolts 108 for fixing to the side wall of the ventilation opening in the horizontal tunnel section. By simply making the mounting bolts 108 pass through the mounting plate 107 and screw them into the threaded mounting sleeve fixed in the side wall of the ventilation opening in the horizontal tunnel section, the mounting frame 101 can be flexibly fixed to the side wall of the ventilation opening in the horizontal tunnel section.

[0034] The above are preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A mine ventilation resistance monitoring device based on an intelligent ventilation system, comprising a mounting frame (101) detachably mounted on the inner wall of an air inlet in a horizontal roadway, the mounting frame (101) having openings at both its front and rear ends, characterized in that: The mounting frame (101) has a first tee (102) and a second tee (103) respectively installed through its two end side walls. A pressure sensor (104) and a U-shaped differential pressure gauge (105) are respectively installed on the top and bottom walls of the mounting frame (101). The two ends of the pressure sensor (104) are connected to the first tee (102) and the second tee (103) respectively, and the two ends of the differential pressure gauge are also connected to the first tee (102) and the second tee (103) respectively. A screw-on connection is provided on the first tee (102) to the air intake door. The first flexible hose is detachably connected to the air inlet pipe (110) on (109), and the second flexible hose (106) is screwed onto the second tee (103) and detachably connected to the return air pipe (112) on the return airway door (111). A first steel pipe assembly is detachably provided between the side end of the mounting frame (101) and the air inlet door (109) and sleeved on the outside of the first flexible hose. A second steel pipe assembly is detachably provided between the side end of the mounting frame (101) and the return airway door (111) and sleeved on the outside of the second flexible hose (106).

2. The mine ventilation resistance monitoring device based on an intelligent ventilation system as described in claim 1, characterized in that: The first steel pipe assembly includes a first lower half steel pipe (201) disposed on the air intake door (109). The mounting frame (101) is provided with a first support frame (202) for supporting and fixing the end of the first lower half steel pipe (201) away from the air intake door (109). A first upper half steel pipe (203) is also snapped onto the top of the first lower half steel pipe (201). A first connecting bolt (204) for screwing and fixing the first lower half steel pipe (201) is provided on the first upper half steel pipe (203).

3. The mine ventilation resistance monitoring device based on an intelligent ventilation system as described in claim 2, characterized in that: The second steel pipe assembly includes a second lower steel pipe (301) installed on the return airway damper (111). A second support frame is provided on the mounting frame (101) for supporting and fixing the end of the second lower steel pipe (301) away from the return airway damper (111). A second upper steel pipe (302) is also snapped onto the top of the second lower steel pipe (301). A second connecting bolt (303) is provided on the second upper steel pipe (302) for screwing and fixing the second lower steel pipe (301).

4. The mine ventilation resistance monitoring device based on an intelligent ventilation system as described in claim 3, characterized in that: The first flexible hose is connected to the air inlet pipe (110) by insertion. The connection between the first flexible hose and the air inlet pipe (110) is also fixed by the first pipe clamp. A first sealing ring is also provided on the outer wall of the air inlet pipe (110).

5. The mine ventilation resistance monitoring device based on an intelligent ventilation system as described in claim 4, characterized in that: The second flexible hose (106) is connected to the return air duct (112) by insertion. The connection between the second flexible hose (106) and the return air duct (112) is also fixed by a second pipe clamp. A second sealing ring is also provided on the outer wall of the return air duct (112).

6. The mine ventilation resistance monitoring device based on an intelligent ventilation system as described in claim 5, characterized in that: The mounting frame (101) is provided with a mounting plate (107), and the mounting plate (107) is provided with mounting bolts (108) for fixing to the side wall of the ventilation opening of the horizontal tunnel section.

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