Pipeline for coal mine electromechanical ventilation

Abstract

The utility model provides a pipeline for coal mine electromechanical ventilation, and relates to the technical field of ventilation pipelines. The pipeline for coal mine electromechanical ventilation comprises a plurality of pipeline bodies, every two adjacent pipeline bodies are detachably connected, a cleaning mechanism is arranged in any pipeline body and comprises a water pipe and a plurality of multi-way nozzles, the water pipe is arranged in the axis direction of the pipeline bodies, and the multi-way nozzles are evenly arranged on the water pipe at intervals. Any multi-way nozzle is communicated with a water pipe, a liquid drainage hole is formed in any pipeline body, a self-closing valve is arranged on any pipeline body, and the self-closing valve is communicated with the liquid drainage hole. When the pipeline is horizontally mounted, dust is easy to accumulate in the pipeline, so that the air quality of conveyed air is influenced, and the cleaning mechanism mounted in the pipeline can clean the inner wall of the pipeline without independent cleaning equipment, so that the inner wall of the pipeline is ensured to be clean, and the influence of the dust accumulated in the pipeline on the air in the pipeline is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of ventilation ducts, in particular to a duct for mechanical and electrical ventilation in a coal mine. Background Art

[0002] As the main energy source for economic development, coal is known as black gold. The development and mining of coal has provided tremendous impetus for economic development and social progress. In the early days of coal mining, there was no ventilation device, relying solely on natural ventilation. With the deepening of mining, natural ventilation can no longer meet the needs of safe production, and forced ventilation devices have emerged. In order to avoid the safety of miners affected by the low concentration of underground oxygen during mining, it is necessary to use pipelines and air supply equipment to supply air to the mine.

[0003] When the pipeline is used for a long time, especially the horizontally installed pipeline, dust is easily accumulated inside, which affects the quality of the transported air. Most of the existing pipelines for coal mines do not have the function of automatic cleaning. When cleaning the inside of the pipeline, a separate cleaning equipment is required, which is time-consuming and labor-intensive. Some existing pipelines are designed with automatic cleaning devices inside, but the design is relatively complex and the cost of manufacturing such pipelines is high, such as a self-cleaning ventilation duct disclosed in a Chinese patent with application number CN202211074854.5. Therefore, a ventilation duct for coal mine electromechanical is proposed. Utility Model Content

[0004] In order to facilitate cleaning of the inside of a pipeline and improve the quality of conveyed air, the utility model provides a pipeline for electromechanical ventilation in a coal mine.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0006] A pipeline for electromechanical ventilation in coal mines, comprising a plurality of pipeline bodies, wherein two adjacent pipeline bodies are detachably connected, a cleaning mechanism is arranged in any of the pipeline bodies, the cleaning mechanism comprises a water pipe and a plurality of multi-way nozzles, the water pipe is arranged along the axial direction of the pipeline body, a plurality of multi-way nozzles are evenly spaced on the water pipe, any of the multi-way nozzles is connected to the water pipe, a drainage hole is opened on any of the pipeline bodies, a self-closing valve is arranged on any of the pipeline bodies, and the self-closing valve is connected to the drainage hole.

[0007] Further, in the utility model, the self-closing valve comprises a liquid guide tube, a valve cover, a force arm, a support arm and a counterweight block; the liquid guide tube is threadedly connected to the liquid discharge hole; the valve cover and the counterweight block are respectively arranged at two ends of the force arm; the support arm is arranged on the force arm; and the distance from the support arm to the valve cover is smaller than the distance from the support arm to the counterweight block; the free end of the support arm is rotatably connected to the liquid guide tube; and the valve cover can abut against the liquid outlet end of the liquid guide tube.

[0008] Furthermore, in the present invention, the lever arm is a telescopic structure.

[0009] Furthermore, in the utility model, the above-mentioned force arm includes a telescopic rod and a sleeve, the above-mentioned telescopic rod is threadedly connected to the above-mentioned sleeve, the above-mentioned valve cover is arranged at the free end of the above-mentioned telescopic rod, the above-mentioned counterweight block is arranged at the free end of the above-mentioned sleeve, and the above-mentioned support arm is arranged on the above-mentioned telescopic rod.

[0010] Furthermore, in the utility model, a flow guide member adapted to the pipe body is also provided in the pipe body, the flow guide member is arranged along the axial direction of the pipe body, a flow guide hole is opened on the flow guide member, and the flow guide hole is connected with the drainage hole.

[0011] Furthermore, in the utility model, a guide slope is provided at the opening of the guide hole close to the cleaning mechanism, and the guide slope is inclined toward the guide hole.

[0012] Furthermore, in the utility model, a connecting pipe is provided between two adjacent water pipes, and the two adjacent water pipes are connected through the connecting pipe.

[0013] Compared with the prior art, the embodiments of the present invention have at least the following advantages or beneficial effects:

[0014] The utility model proposes a pipeline for electromechanical ventilation in coal mines. When the pipeline is installed horizontally, dust is easily accumulated in the pipeline, thereby affecting the air quality of the conveyed air. A cleaning mechanism installed in the pipeline can clean the inner wall of the pipeline without the need for separate cleaning equipment to ensure the cleanliness of the inner wall of the pipeline, thereby preventing the dust accumulated in the pipeline from affecting the air in the pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0016] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions under which the utility model can be implemented. Therefore, they have no substantive technical significance. Any modification of the structure, change in the proportion relationship or adjustment of the size should still fall within the scope of the technical content disclosed by the utility model without affecting the effects and purposes that can be achieved by the utility model.

[0017] Figure 1 It is a schematic diagram of the structure of an embodiment of the utility model;

[0018] Figure 2 for Figure 1 Sectional view of section AA;

[0019] Figure 3 A cross-sectional view of an embodiment of the utility model;

[0020] Figure 4 This is a structural schematic diagram of a self-closing valve according to an embodiment of the utility model;

[0021] Figure 5 It is a schematic structural diagram of a flow guide member according to an embodiment of the utility model.

[0022] Icons: 1- pipe body; 101- drainage hole; 2- cleaning mechanism; 201- water pipe; 202- multi-way nozzle; 3- self-closing valve; 301- liquid guide tube; 302- valve cover; 303- lever arm; 3031- telescopic rod; 3032- sleeve; 304- support arm; 305- counterweight block; 4- flow guide piece; 401- flow guide hole; 402- flow guide slope; 5- connecting pipe. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0024] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0026] The following is combined with Figure 1-5 This application is described in further detail.

[0027] Example

[0028] Please refer to Figure 1-5 , Figure 1 It is a schematic diagram of the structure of an embodiment of the utility model; Figure 2 for Figure 1 Sectional view of section AA; Figure 3 A cross-sectional view of an embodiment of the utility model; Figure 4 This is a schematic structural diagram of a self-closing valve according to an embodiment of the utility model; Figure 5 It is a schematic structural diagram of a flow guide member according to an embodiment of the utility model.

[0029] The present embodiment provides a coal mine electromechanical ventilation pipeline, including multiple pipeline bodies 1, two adjacent pipeline bodies 1 can be detachably connected, a cleaning mechanism 2 is arranged in any pipeline body 1, the cleaning mechanism 2 includes a water pipe 201 and multiple multi-way nozzles 202, the water pipe 201 is arranged along the axial direction of the pipeline body 1, and the multiple multi-way nozzles 202 are evenly spaced on the water pipe 201, and any multi-way nozzle 202 is connected to the water pipe 201, and a drainage hole 101 is opened on any pipeline body 1, and a self-closing valve 3 is arranged on any pipeline body 1, and the self-closing valve 3 is connected to the drainage hole 101.

[0030] In this embodiment, multiple pipe bodies 1 are connected in sequence to facilitate the transportation and circulation of wind. Two adjacent pipe bodies 1 can be connected together by flange connection, which is convenient for installation and disassembly. When the pipe body 1 is arranged horizontally, the inner wall of the pipe body 1 is prone to dust accumulation after long-term use. The cleaning mechanism 2 is used to regularly clean the inner wall of the pipe body 1 to improve the air quality of the transported air. The drain hole 101 is used to discharge the cleaning liquid. The self-closing valve 3 installed on the pipe body 1 and connected to the drain hole 101 can be automatically closed when the inner wall of the pipe body 1 is not cleaned to prevent the pipe body 1 from leaking and affecting the air transportation; when cleaning the inner wall of the pipe body 1, turn off the blower of the air supply pipe to the pipe body 1, and then start the cleaning mechanism 2 to clean the inner wall of the pipe body 1. After the cleaning liquid flows into the self-closing valve 3 through the drain hole 101, the valve opens under the gravity / pressure of the water, and the cleaning liquid can be discharged.

[0031] Specifically, a plurality of multi-way nozzles 202 and a water pipe 201 form a spray cleaning system, which is convenient for cleaning the inner wall of the pipe body 1. Each water pipe 201 can be connected to an external water pump, and the water pump pumps water from the water tank into the water pipe 201, and then sprays it out through the multi-way nozzle 202 for cleaning. Because the cross section of the pipe body 1 is circular, the nozzle is selected as a multi-way nozzle 202, and specifically, a three-way, four-way or five-way nozzle can be selected, which is convenient for increasing the cleaning area of ​​the cleaning water, so as to achieve the purpose of comprehensive cleaning of the inner wall of the pipe body 1, thereby improving the cleaning effect.

[0032] Please refer to Figure 1-Figure 4In some implementations of the present embodiment, the self-closing valve 3 includes a liquid guide tube 301, a valve cover 302, a force arm 303, a support arm 304 and a counterweight 305. The liquid guide tube 301 is threadedly connected to the drainage hole 101, the valve cover 302 and the counterweight 305 are respectively arranged at both ends of the force arm 303, the support arm 304 is arranged on the force arm 303, and the distance from the support arm 304 to the valve cover 302 is smaller than the distance from the support arm 304 to the counterweight 305. The free end of the support arm 304 is rotatably connected to the liquid guide tube 301, and the valve cover 302 can abut against the liquid outlet end of the liquid guide tube 301.

[0033] In this embodiment, the self-closing valve 3 is designed as this structure, which facilitates the automatic opening and closing function of the self-closing valve 3. Specifically, the force arm 303 here is a lever, and the support arm 304 is installed on the force arm 303, so that the distance from the support arm 304 to the valve cover 302 is smaller than the distance from the support arm 304 to the counterweight block 305, so that the power arm 303 of this lever can be longer than the resistance arm 303, so that the valve cover 302 is convenient to be tightly pressed against the liquid outlet end of the liquid guide tube 301 under the action of the counterweight block 305. When the inner wall of the pipeline body 1 is not cleaned, the valve cover 302 is pressed against the liquid outlet end of the liquid guide tube 301 under the dead weight of the counterweight block 305, so that the air in the pipeline body 1 cannot flow out of the liquid guide tube 301, thereby not affecting the wind pressure in the pipeline body 1 to affect the air delivery. When cleaning the inner wall of the pipeline body 1, turn off the blower that supplies air to the pipeline body 1, then turn on the cleaning mechanism 2, and the inner wall of the pipeline body 1 can be cleaned. After the cleaning liquid flows into the liquid guide tube 301 through the drainage hole 101, the valve cover 302 overcomes the deadweight of the counterweight block 305 under the pressure / gravity of the water, and the valve cover 302 is separated from the liquid outlet end of the liquid guide tube 301, and the cleaning liquid can be discharged. When the cleaning liquid in the pipeline body 1 is completely discharged, the valve cover 302 is again in contact with the end of the liquid guide tube 301 away from the pipeline body 1 under the action of the counterweight block 305.

[0034] Please refer to Figure 1 , Figure 3 and Figure 4 In some implementations of this embodiment, the lever arm 303 is a telescopic structure.

[0035] In this embodiment, the lever arm 303 is designed as a telescopic structure, which is convenient for adjusting the length of the lever arm 303, thereby adjusting the distance from the counterweight block 305 to the support arm 304. When the inner wall of the pipeline body 1 is not cleaned, if the wind pressure in the pipeline body 1 is too large, causing a portion of air to enter the liquid guide tube 301 and act on the valve cover 302, the wind pressure can overcome the deadweight of the counterweight block 305 to separate the valve cover 302 from the liquid guide tube 301, so that the wind flows out of the pipeline body 1, which will affect the delivery of the wind. At this time, the total length of the lever arm 303 can be increased by adjusting the length of the lever arm 303, that is, the power arm 303 of this lever arm 303 (lever) is increased, and the distance from the counterweight block 305 to the support arm 304 is increased, until the valve cover 302 can overcome the wind pressure under the action of the counterweight block 305 and always press against the liquid guide tube 301, so as to prevent the wind leakage in the pipeline body 1. When cleaning the inner wall of the pipeline body 1, the length of the force arm 303 can be adjusted again to reduce the distance from the counterweight block 305 to the support arm 304. When the cleaning liquid flows into the liquid guide tube 301, it can overcome the deadweight of the counterweight block 305, so that the valve cover 302 is opened and the cleaning liquid flows out.

[0036] Please refer to Figure 1 , Figure 3 and Figure 4 In some implementations of the present embodiment, the force arm 303 includes a telescopic rod 3031 and a sleeve 3032, the telescopic rod 3031 is threadedly connected to the sleeve 3032, the valve cover 302 is arranged at the free end of the telescopic rod 3031, the counterweight block 305 is arranged at the free end of the sleeve 3032, and the support arm 304 is arranged on the telescopic rod 3031.

[0037] In this embodiment, the lever arm 303 is composed of a telescopic rod 3031 and a sleeve 3032, which facilitates the telescopic function. The valve cover 302 and the telescopic rod 3031, the support arm 304 and the telescopic rod 3031, and the counterweight block 305 and the sleeve 3032 can be connected together by threaded connection or can be integrally formed.

[0038] Please refer to Figure 2 and Figure 3 In some implementations of the present embodiment, a flow guide 4 adapted to the pipe body 1 is further provided in the pipe body 1. The flow guide 4 is arranged along the axial direction of the pipe body 1. A flow guide hole 401 is opened on the flow guide 4, and the flow guide hole 401 is connected to the drainage hole 101.

[0039] In this embodiment, the guide member 4 is used to guide the cleaning liquid, so that the cleaning liquid is gathered at the guide hole 401, so that it is quickly discharged from the drain hole 101, and the cleaning liquid is prevented from accumulating in the pipeline body 1. The guide member 4 and the pipeline body 1 can be connected together by bolts, which is convenient for installation and replacement.

[0040] Please refer to Figure 2 , Figure 3and Figure 5 In some implementations of the present embodiment, a guide slope 402 is provided at the opening of the guide hole 401 close to the cleaning mechanism 2 , and the guide slope 402 is inclined toward the guide hole 401 .

[0041] In this embodiment, a guide slope 402 is provided at the opening of the guide hole 401 on the guide member 4 near the cleaning mechanism 2, forming a slope that is conducive to the cleaning liquid converging toward the guide hole 401, facilitating the flow of the cleaning liquid, so that the cleaning liquid is quickly discharged through the guide hole 401 and the drain hole 101.

[0042] Please refer to Figure 3 In some implementations of this embodiment, a connecting pipe 5 is provided between two adjacent water pipes 201 , and the two adjacent water pipes 201 are connected through the connecting pipe 5 .

[0043] In this embodiment, two adjacent water pipes 201 are connected through the connecting pipe 5, so that each water pipe 201 is connected to form a whole, so that the water pipe 201 only needs to be connected to an external water pump to pump cleaning water into the water pipe 201 to clean the inner wall of each pipeline body 1, thereby reducing the installation cost. The connecting pipe 5 can use a retractable corrugated pipe to facilitate the installation of the pipeline body 1 after multiple water pipes 201 are connected through the connecting pipe 5.

[0044] When in use, the pipeline bodies 1 are assembled together and installed in the tunnel, the water pipe 201 is connected to the water pump, and then a fan is installed at the inlet of the pipeline. When the inner wall of the pipeline needs to be cleaned, the fan is turned off and the water pump is started.

[0045] In summary, the embodiment of the utility model provides a coal mine electromechanical ventilation pipeline which has at least the following beneficial effects:

[0046] The utility model proposes a pipeline for electromechanical ventilation in a coal mine. When the pipeline is installed horizontally, dust is easily accumulated in the pipeline, thereby affecting the air quality of the conveyed air. A cleaning mechanism 2 installed in the pipeline can clean the inner wall of the pipeline without the need for separate cleaning equipment to ensure the cleanliness of the inner wall of the pipeline, thereby preventing the dust accumulated in the pipeline from affecting the air in the pipeline.

[0047] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A coal mine electromechanical ventilation pipeline, characterized in that: The invention comprises a plurality of pipe bodies (1), wherein two adjacent pipe bodies (1) are detachably connected, a cleaning mechanism (2) is arranged in any of the pipe bodies (1), the cleaning mechanism (2) comprises a water pipe (201) and a plurality of multi-way nozzles (202), the water pipe (201) is arranged along the axial direction of the pipe body (1), the plurality of multi-way nozzles (202) are evenly spaced and arranged on the water pipe (201), any of the multi-way nozzles (202) is connected to the water pipe (201), a drainage hole (101) is opened on any of the pipe bodies (1), a self-closing valve (3) is arranged on any of the pipe bodies (1), and the self-closing valve (3) is connected to the drainage hole (101).

2. A coal mine electromechanical ventilation pipeline according to claim 1, characterized in that: The self-closing valve (3) comprises a liquid guiding tube (301), a valve cover (302), a force arm (303), a support arm (304) and a counterweight (305); the liquid guiding tube (301) is threadedly connected to the liquid discharge hole (101); the valve cover (302) and the counterweight (305) are respectively arranged at two ends of the force arm (303); the support arm (304) is arranged on the force arm (303); and the distance from the support arm (304) to the valve cover (302) is smaller than the distance from the support arm (304) to the counterweight (305); the free end of the support arm (304) is rotatably connected to the liquid guiding tube (301); and the valve cover (302) can abut against the liquid outlet end of the liquid guiding tube (301).

3. A coal mine electromechanical ventilation pipeline according to claim 2, characterized in that: The lever arm (303) is a telescopic structure.

4. A coal mine electromechanical ventilation pipeline according to claim 3, characterized in that: The force arm (303) comprises a telescopic rod (3031) and a sleeve (3032), wherein the telescopic rod (3031) is threadedly connected to the sleeve (3032), the valve cover (302) is arranged at the free end of the telescopic rod (3031), the counterweight (305) is arranged at the free end of the sleeve (3032), and the support arm (304) is arranged on the telescopic rod (3031).

5. A coal mine electromechanical ventilation pipeline according to claim 1, characterized in that: A flow guide (4) adapted to the pipeline body (1) is also provided in the pipeline body (1); the flow guide (4) is arranged along the axial direction of the pipeline body (1); a flow guide hole (401) is provided on the flow guide (4); and the flow guide hole (401) is connected to the drainage hole (101).

6. A coal mine electromechanical ventilation pipeline according to claim 5, characterized in that: A guide slope (402) is provided at the opening of the guide hole (401) close to the cleaning mechanism (2), and the guide slope (402) is inclined toward the guide hole (401).

7. A coal mine electromechanical ventilation pipeline according to claim 1, characterized in that: A connecting pipe (5) is provided between two adjacent water pipes (201), and the two adjacent water pipes (201) are connected via the connecting pipe (5).

Images