In-well ventilation equipment for pipeline construction

Abstract

The utility model discloses in-well ventilation equipment for pipeline construction, which relates to the technical field of pipeline construction and comprises a base, the top of the base is fixedly connected with a first treatment box, one side of the first treatment box is fixedly connected with a first axial flow fan, and a filtering mechanism is mounted in the first treatment box. After entering the first treatment box, gas can sequentially penetrate through a filter plate, a filter element and an adsorption plate, multiple filtering treatment is achieved, the dust content in the gas is reduced, and therefore dust accumulation in a mine is reduced, the air quality in the mine is guaranteed, the influence on miner health is reduced, a motor is used for driving a lead screw to rotate, reciprocating movement of a scraper can be achieved, and the service life of the scraper is prolonged. Therefore, one side of the filter plate is scraped and cleaned, accumulation of dust on one side of the filter plate is reduced, and the filtering effect of the filter plate is ensured; the flow of the gas can be slowed down by utilizing the baffle plate and the built-in plate, so that the harmful gas enters the flow guide block, and the harmful gas is primarily adsorbed and purified.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline construction, in particular to a well ventilation and air exchange device for pipeline construction. Background Art

[0002] Pipeline construction, or pipeline line engineering, is a comprehensive operation that integrates multiple specialized techniques. The buried pipeline construction process includes route development, pipe pre-fabrication, corrosion protection, trenching, pipe transportation and routing, pipe bending, and assembly. During construction within a mine, ventilation is necessary to ensure workers receive fresh air and to expel harmful gases from the mine.

[0003] For example, Chinese patent CN215979448U discloses a mine ventilation device, which includes a ventilation fan and two fan brackets installed at the bottom of the ventilation fan. An air outlet is provided on one side of the ventilation fan, and the air inlet of the ventilation fan is connected to a first ventilation duct. An escape door is provided on the first ventilation duct, and the end of the first ventilation duct away from the ventilation fan is connected to a second ventilation duct.

[0004] In the above patent, although the problem of the single structure of the existing ventilation duct, which is not conducive to the escape of miners, is solved by using escape doors and emergency lighting mechanisms, there is a lot of dust inside the site during pipeline construction. When ventilating the well, the outside air is directly discharged into the well. The air is not filtered, and dust flows into the well with the gas, which will reduce the air quality in the well and affect the health of the miners. Utility Model Content

[0005] The purpose of the utility model is to solve the problem in the prior art that there is a lot of dust inside the site during pipeline construction. When ventilating the well, the outside air is directly discharged into the well. The air is not filtered, and dust flows into the well with the gas, which will reduce the air quality in the well and affect the health of the miners. A ventilation and air exchange equipment for the well for pipeline construction is proposed.

[0006] The fan is fixedly provided with a filter cover on the top of the filter housing, and the fan is fixedly provided with a filter cover on the top of the filter housing, and the fan is fixedly provided with a filter cover on the bottom of the filter housing, and the fan is fixedly provided with a filter cover on the top of the filter housing.

[0007] Preferably, a cooling tube is wound around the outer annular surface of the guide tube, and the top of the cooling tube passes through the fixed plate.

[0008] Preferably, one end of the guide tube is fixedly connected to air pump 2, one end of the air pump 2 is fixedly connected to exhaust pipe 1, and the bottom of the air pump 2 is fixedly connected to the base.

[0009] Preferably, a support frame is engaged with the top of the base, a second processing box is engaged with the top of the support frame, and a second axial flow fan is fixedly connected to one side of the second processing box.

[0010] Preferably, the top of the second processing box is fixedly connected to an air pump 1, one side of the air pump 1 is fixedly connected to an exhaust pipe 2, and one side of the air pump 1 is fixedly connected to an extension pipe, and the top side wall of the second processing box is penetrated by the extension pipe.

[0011] Preferably, a baffle is fixedly connected to one side of the second inner wall of the processing box, a built-in plate is overlapped on one side of the baffle, one side of the built-in plate is fixedly connected to the second inner wall of the processing box, and a ventilation hole is opened on one side of the built-in plate.

[0012] Preferably, a guide block is overlapped on one side of the built-in plate, one side of the guide block is fixedly connected to the second inner wall of the processing box, and an L-shaped hole is opened inside the guide block.

[0013] Compared with the prior art, the advantages and positive effects of the present invention are:

[0014] 1. In the utility model, after the gas enters the processing box, it can pass through the filter plate, filter element and adsorption plate in sequence to achieve multiple filtering treatments, reduce the dust content in the gas, thereby reducing the accumulation of dust inside the mine, ensuring the air quality in the mine, and reducing the impact on the health of miners. The motor drives the lead screw to rotate, which can realize the reciprocating movement of the scraper, thereby scraping and cleaning one side of the filter plate, reducing the accumulation of dust on one side of the filter plate, and ensuring the filtering effect of the filter plate.

[0015] 2. In the present invention, the axial flow fan 2 can be used to extract the gas inside the mine and send it into the treatment box 2. The baffle and the built-in plate can slow down the flow of the gas, so that the harmful gas enters the guide block, so that the harmful gas is initially adsorbed and purified. Then the gas is extracted by the air pump 1 and discharged through the exhaust pipe 2, thereby maintaining the air pressure inside the mine stable and improving the ventilation effect inside the mine. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a three-dimensional structural diagram of a ventilation and air exchange device for pipeline construction proposed in the utility model;

[0017] Figure 2 This utility model provides a schematic diagram of the baffle structure of a well ventilation and air exchange equipment for pipeline construction;

[0018] Figure 3 This utility model provides a schematic diagram of the structure of a guide block for a well ventilation device used in pipeline construction;

[0019] Figure 4 This utility model provides a schematic diagram of the installation of a scraper structure of a well ventilation device for pipeline construction;

[0020] Figure 5 The utility model provides a schematic diagram of the installation of a filter element structure of an in-well ventilation and air exchange equipment for pipeline construction.

[0021] Legend: 1. Treatment box 1; 2. Axial flow fan 1; 3. Base; 4. Treatment box 2; 5. Axial flow fan 2; 6. Exhaust pipe 1; 7. Exhaust pipe 2; 8. Baffle; 9. Built-in plate; 10. Air pump 1; 11. Filter plate; 12. Guide block; 13. Air pump 2; 14. Motor; 15. Fixed plate; 16. Side plate; 17. Guide tube; 18. Scraper; 19. Filter element; 20. Adsorption plate; 21. Cooling pipe. DETAILED DESCRIPTION

[0022] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described below with reference to the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other without conflict.

[0023] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0024] Example 1

[0025] Reference Figure 1-5 As shown: A ventilation and air exchange equipment for well construction of pipelines, including a base 3, a processing box 1 is fixedly connected to the top of the base 3, an axial flow fan 2 is fixedly connected to one side of the processing box 1, a filter mechanism is installed inside the processing box 1, and the filter mechanism includes a filter plate 11, a scraper 18 and a filter element 19. The upper and lower sides of the filter plate 11 are fixedly connected to fixed plates 15, one of the fixed plates 15 is rotatably connected to the top, one end of the screw is fixedly connected to the output shaft of the motor 14, the bottom of the motor 14 is fixedly connected to the other fixed plate 15, and the screw and the scraper 18 are connected by a threaded connection. The scraper 18 is slidably connected to the filter plate 11, and a side plate 16 is fixedly connected to one side of the filter plate 11. One side of the filter plate 11 is fixedly connected to the side plate 16, and one side of the inner wall of the side plate 16 is fixedly connected to the filter element 19. An adsorption plate 20 is fixedly connected to one side of the filter element 19. A guide tube 17 is provided on one side of the adsorption plate 20. The guide tube 17 is inserted into the processing box 1, and a cooling tube 21 is wrapped around the outer ring surface of the guide tube 17. The top of the cooling tube 21 passes through the fixed plate 15. One end of the guide tube 17 is fixedly connected to the air pump 2 13, and one end of the air pump 2 13 is fixedly connected to the exhaust pipe 6, and the bottom of the air pump 2 13 is fixedly connected to the base 3.

[0026] The axial flow fan 2 can be used to accelerate the air outside the mine to enter the processing box 1. The filter plate 11, filter element 19 and adsorption plate 20 can perform multiple treatments on the air. The dust content and moisture content in the treated gas are both low, which reduces the interference to the interior of the mine and the miners while ensuring the oxygen supply. The forward and reverse rotation of the motor 14 can be used to control the screw to rotate in the corresponding direction, thereby realizing the reciprocating lifting and lowering of the scraper 18. One side of the scraper 18 contacts the filter plate 11, which can scrape off the dust adhering to the surface of the filter plate 11 to clean the filter plate 11, thereby avoiding clogging of the filter plate 11 and ensuring the filtering effect of the filter plate 11 on the air. When the coolant is injected into the cooling pipe 21, the guide pipe 17 can be cooled, thereby adjusting the temperature of the gas entering the mine to avoid excessive gas temperature. The cooling pipe 21 can be connected to an external water pump to accelerate the replacement of the coolant, thereby ensuring the cooling effect of the gas. A through hole is opened on the top of the processing box 1 to assist in the volatilization of heat on the surface of the cooling pipe 21.

[0027] Example 2

[0028] like Figure 1-Figure 3As shown, a support frame is engaged with the top of the base 3, a processing box 2 4 is engaged with the top of the support frame, an axial flow fan 2 5 is fixedly connected to one side of the processing box 2 4, an air pump 10 is fixedly connected to the top of the processing box 2 4, an exhaust pipe 2 7 is fixedly connected to one side of the air pump 10, and an extension pipe is fixedly connected to one side of the air pump 10, the top side wall of the processing box 2 4 is penetrated by the extension pipe, a baffle 8 is fixedly connected to one side of the inner wall of the processing box 2 4, a built-in plate 9 is overlapped on one side of the baffle 8, one side of the built-in plate 9 is fixedly connected to the inner wall of the processing box 2 4, and a ventilation hole is provided on one side of the built-in plate 9, a guide block 12 is overlapped on one side of the built-in plate 9, one side of the guide block 12 is fixedly connected to the inner wall of the processing box 2 4, and an L-shaped hole is provided inside the guide block 12.

[0029] The support frame can be used to provide stable support for the bottom of the processing box 2 4, and the axial flow fan 2 5 can extract the air inside the mine, and the air enters the interior of the processing box 2 4. The baffles 8 symmetrically arranged above and below can slow down the speed of the gas passing through the built-in plate 9, so that the gas can smoothly pass through the built-in plate 9 into the guide block 12, and fully contact with the activated carbon particles in the L-shaped hole, thereby adsorbing some harmful substances in the gas. The adsorbed gas enters the air pump 10 through the extension pipe, and is then discharged from the mine through the exhaust pipe 2 7, which can reduce the impact on the external environment of the mine. The discharged gas can balance the air pressure inside the mine, thereby accelerating the ventilation inside the mine.

[0030] The use method and working principle of this device: First, before the pipeline construction, the whole device is opened for ventilation and air supply for 1 hour in advance. During the ventilation and air supply, the axial flow fan 2 can be used to send the external air into the processing box 1, which is filtered by the filter plate 11 and the filter element 19, and then the moisture is absorbed by the bamboo fiber inside the adsorption plate 20. Then the gas enters the guide pipe 17, and then enters the exhaust pipe 6 through the air pump 13, and then is discharged into the mine through the exhaust pipe 6. The motor 14 is used to drive the screw to rotate, and the scraper 18 moves up and down along the screw, thereby The dust on one side is scraped off, and an induced draft pipe is installed on one side of the axial flow fan 25, and the end of the induced draft pipe is installed in the mine. When the axial flow fan 25 is working, the gas in the mine can be extracted, and the gas enters the treatment box 24, and after being buffered by the deflector 8, it passes through the built-in plate 9 and the guide block 12. The guide block 12 is filled with activated carbon particles. The activated carbon can be used to adsorb the gas and enter the area above the guide block 12 and the top of the inner cavity of the treatment box 24, and then enter the air pump 10 through the extension pipe, and then be discharged by the exhaust pipe 27, so as to realize the gas exchange inside the mine.

[0031] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any other form. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes for application in other fields. However, any simple modification, equivalent change and modification of the above embodiment made according to the technical essence of the present invention without departing from the content of the technical solution of the present invention shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. A ventilation and air exchange device for wells used in pipeline construction, comprising a base (3), a processing box (1) being fixedly connected to the top of the base (3), characterized in that: One side of the treatment box (1) is fixedly connected to an axial flow fan (2), and a filter mechanism is installed inside the treatment box (1), and the filter mechanism includes a filter plate (11), a scraper (18) and a filter element (19). The filter plate (11) is fixedly connected to fixed plates (15) on both the upper and lower sides, and one of the fixed plates (15) is rotatably connected to a lead screw at the top, and one end of the lead screw is fixedly connected to the output shaft of the motor (14), and the bottom of the motor (14) is connected to the other fixed plate (1 5) fixed connection, the lead screw and the scraper (18) are connected by threads, the scraper (18) and the filter plate (11) are slidably connected, one side of the filter plate (11) is fixedly connected to a side plate (16), one side of the inner wall of the side plate (16) is fixedly connected to the filter element (19), one side of the filter element (19) is fixedly connected to an adsorption plate (20), one side of the adsorption plate (20) is provided with a guide tube (17), and the guide tube (17) is inserted through the processing box (1).

2. The ventilation equipment for pipeline construction in a well according to claim 1, characterized in that: A cooling tube (21) is wound around the outer annular surface of the guide tube (17), and the top of the cooling tube (21) passes through the fixed plate (15).

3. The ventilation equipment for pipeline construction in a well according to claim 1, characterized in that: One end of the guide tube (17) is fixedly connected to the second air pump (13), one end of the second air pump (13) is fixedly connected to the first exhaust pipe (6), and the bottom of the second air pump (13) is fixedly connected to the base (3).

4. The ventilation equipment for pipeline construction in a well according to claim 1, characterized in that: A support frame is clamped on the top of the base (3), a second processing box (4) is clamped on the top of the support frame, and a second axial flow fan (5) is fixedly connected to one side of the second processing box (4).

5. The ventilation equipment for pipeline construction in a well according to claim 4, characterized in that: The top of the second processing box (4) is fixedly connected to an air pump (10), one side of the first air pump (10) is fixedly connected to an exhaust pipe (7), and one side of the first air pump (10) is fixedly connected to an extension pipe, and the top side wall of the second processing box (4) is penetrated by the extension pipe.

6. The ventilation equipment for wells used for pipeline construction according to claim 4, characterized in that: A baffle (8) is fixedly connected to one side of the inner wall of the second processing box (4), a built-in plate (9) is overlapped on one side of the baffle (8), one side of the built-in plate (9) is fixedly connected to the inner wall of the second processing box (4), and a ventilation hole is opened on one side of the built-in plate (9).

7. The ventilation equipment for wells used for pipeline construction according to claim 6, characterized in that: A guide block (12) is overlapped on one side of the built-in plate (9), one side of the guide block (12) is fixedly connected to the inner wall of the second processing box (4), and an L-shaped hole is opened inside the guide block (12).

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