Novel pneumatic cooling device for roadway

Abstract

The utility model relates to the technical field of roadway cooling, in particular to a novel pneumatic cooling device for a roadway. Comprising a compressed air pipeline, an oil-water separator and a plurality of pneumatic fans, power sources of the pneumatic fans are connected in series, each pneumatic fan comprises a machine shell, a carrier roller, a transmission shaft, a front cover and fan blades arranged in the front cover, and an air inlet pipe is arranged at the upper end of the machine shell; the air inlet pipe of the shell close to one side of the oil-water separator is connected with the oil-water separator through a first air pipe, one end, far away from the shell, of the oil-water separator is connected with a compressed air pipeline, and an air outlet pipe is arranged at the lower end of the shell; according to the utility model, the manufacturing principle is simple, the manufacturing cost is low, wind in a roadway is used as a power source to drive the fan blades to rotate, the working stability in a high-temperature place is successfully reduced, a motor is not used when the fan blades rotate, and the problem of electrical explosion is completely eradicated; the multiple machine shells are sequentially connected in series one by one, so that one power source can drive the multiple pneumatic fans to use at the same time.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel cooling, in particular to a novel pneumatic cooling device for tunnels. Background Art

[0002] The North Second Work Area of ​​the electromechanical front of the Tenth Mine of Pingmei Co., Ltd. is mainly engaged in the work of auxiliary shaft hoisting, North Second return air shaft, North Second compressor, -870 pump room, 33200 machine lane bottom slab tunnel pumping point, -870 main tunnel transportation, etc. The tunnel temperature of the 33200 machine lane bottom slab tunnel pumping point is quite high.

[0003] There is a lot of gas in the Tenth Mine with a high concentration, and the mining conditions are relatively difficult, especially in the mining face and the bottom plate tunnels like the 33200 machine tunnel, the temperature is quite high, and cooling measures are needed to ensure the safety of workers and safe production. If power supply cooling is used, electricians will need to be sent to pull cables and lay wires, and there will be risks of increased costs, hidden dangers of electric shock to personnel, and inconvenience in later maintenance. The Tenth Mine has rich pneumatic resources, and the compressed air pipeline almost covers the entire main tunnel and the main mining face. Under this condition, the utility model specially proposes a new type of pneumatic cooling device for tunnels to solve the above technical problems. Utility Model Content

[0004] Aiming at the deficiencies of the prior art, the utility model provides a novel pneumatic cooling device for tunnels which is safe, reliable, requires little maintenance and saves costs by utilizing the favorable conditions of the air supply pipeline in the tunnel and combining the rotation of a fan.

[0005] To achieve the above technical objectives, the utility model proposes the following technical solutions: a novel pneumatic cooling device for tunnels, comprising a compressed air pipeline, an oil-water separator and a plurality of pneumatic fans, the power sources of the plurality of pneumatic fans being connected in series, the pneumatic fans comprising a casing, a roller, a transmission shaft, a front cover and fan blades arranged in the front cover, an air inlet pipe being arranged at the upper end of the casing, the air inlet pipe of the casing close to the oil-water separator side being connected to the oil-water separator through a first air duct, the end of the oil-water separator away from the casing being connected to the compressed air pipeline, an air outlet pipe being arranged at the lower end of the casing, an impeller being arranged in the casing, the roller being arranged between the casing and the front cover, the two ends of the transmission shaft being rotatably arranged in the rollers through bearings, one end of the transmission shaft passing through the casing being connected to the impeller, the other end of the transmission shaft passing through the front cover being connected to the fan blades in the front cover.

[0006] Furthermore, a plurality of the casings are connected one by one in sequence through a second air duct.

[0007] Furthermore, the outer wall of the casing is wrapped with a sound insulation layer, and a muffler is provided on the outer wall of the air outlet pipe on the side of the casing away from the oil-water separator.

[0008] Furthermore, a valve is installed on the first air duct, and a drain valve is installed on one side of the oil-water separator.

[0009] Furthermore, a plurality of atomizing nozzles are arranged on the outer wall of the front cover.

[0010] Furthermore, a support rod is provided below the roller, and a counterweight base is provided at the bottom of the support rod.

[0011] Compared with the prior art, the beneficial effects produced by the utility model are: the utility model has a novel structure, ingenious conception, simple and convenient operation, and has the following advantages compared with the prior art: the utility model has a simple manufacturing principle and low manufacturing cost, and by utilizing the wind in the alley as a power source to drive the fan blades to rotate, it successfully reduces the stability of working in high-temperature places, and does not use a motor when the fan blades rotate, eliminating the problem of electrical explosion; by connecting multiple casings in series one by one, one power source can drive multiple pneumatic fans at the same time; according to the temperature of the workplace, the fan blades can be infinitely variable in speed by adjusting the valve; the utility model can also be used to produce dust reduction fans, high-temperature place fans and exhaust fans according to the needs of on-site work. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0013] Figure 2 It is a schematic diagram of the cross-sectional structure of the pneumatic fan of the utility model.

[0014] In the figure, 1. compressed air pipeline; 2. oil-water separator; 3. pneumatic fan; 4. casing; 5. roller; 6. transmission shaft; 7. front cover; 8. fan blades; 9. air inlet pipe; 10. first air duct; 11. air outlet pipe; 12. impeller; 13. bearing; 14. second air duct; 15. sound insulation layer; 16. silencer; 17. valve; 18. drain valve; 19. atomizing nozzle; 20. support rod; 21. counterweight base. DETAILED DESCRIPTION

[0015] The following are specific embodiments of the present invention, and the technical solution of the present invention is further described in conjunction with the accompanying drawings, but the present invention is not limited to these embodiments.

[0016] like Figure 1 and 2As shown, the utility model provides a novel pneumatic cooling device for lanes, comprising a compressed air pipeline 1, an oil-water separator 2 and a plurality of pneumatic fans 3, the power sources of the plurality of pneumatic fans 3 are connected in series, so that the power source can be used repeatedly, the pneumatic fans 3 each comprise a casing 4, a roller 5, a transmission shaft 6, a front cover 7 and a fan blade 8 arranged in the front cover 7, an air inlet pipe 9 is arranged at the upper end of the casing 4, the air inlet pipe 9 of the casing 4 close to the side of the oil-water separator 2 is connected to the oil-water separator 2 through a first air pipe 10, the end of the oil-water separator 2 away from the casing 4 is connected to the compressed air pipeline 1, an air outlet pipe 11 is arranged at the lower end of the casing 4, the air inlet pipe 9 and the air outlet pipe 11 are both 19 mm in diameter A high-pressure pipe, an impeller 12 is provided in the casing 4, a roller 5 is fixedly arranged between the casing 4 and the front cover 7, a transmission shaft 6 is rotatably arranged in the roller 5, and both ends of the transmission shaft 6 are connected to the roller 5 through bearings 13, one end of the transmission shaft 6 passes through the casing 4 and is connected to the impeller 12, and the other end of the transmission shaft 6 passes through the front cover 7 and is connected to the fan blades 8 in the front cover 7, and several of the casings 4 are connected one by one in sequence through the second air duct 14, that is, the air outlet pipe 11 on the casing 4 on the side close to the oil-water separator 2 is connected to the air inlet pipe 9 on the casing 4 adjacent to the casing 4 through the second air duct 14, wherein both ends of the second air duct 14 are respectively connected to the air outlet pipe 11 and the air inlet pipe 9 through high-pressure quick connectors, which is convenient for installation and disassembly.

[0017] like Figure 1 and 2 As shown, the pneumatic fan 3 proposed by the utility model can drive both one fan for cooling and multiple fans for cooling through one power source. The power sources of the pneumatic fan 3 are connected in series to improve the utilization rate of the power source. When used specifically, the wind source serves as the power source of the pneumatic fan. The compressed air on the compressed air pipeline 1 passes through the oil-water separator 2 to filter out the oil and water therein, so that the compressed air is output stably and enters the casing 4 through the air inlet pipe 9. The compressed air will drive the impeller 12 in the casing 4 to rotate, and a pneumatic high-pressure chamber will be formed in the casing 4. The rotation of the impeller 12 will drive the transmission shaft 6 to rotate in the roller 5. The rotation of the transmission shaft 6 will drive the fan blades 8 to rotate in the front cover 7 to cool the tunnel. The utility model does not require electric energy, but uses the compressed air in the tunnel to drive the fan blades 8 to rotate. It can be used both above and below the well, and can achieve the effect of saving labor and greatly saving costs.

[0018] The outer wall of the housing 4 is wrapped with a sound insulation layer 15 , and a muffler 16 is provided on the outer wall of the air outlet pipe 11 on the side of the housing 4 away from the oil-water separator 2 .

[0019] like Figure 2As shown, the sound insulation layer 15 can be made of materials such as asbestos or sound-absorbing cotton to reduce noise, effectively reducing the noise generated by the high-speed rotation of the impeller 12 of the pneumatic fan 3 during operation; by setting a muffler 16, the sound of the low-pressure airflow of the pneumatic fan 3 can be effectively eliminated, improving the noise generated by the pneumatic fan 3 during operation.

[0020] A valve 17 is installed on the first air duct 10 , and a drain valve 18 is installed on one side of the oil-water separator 2 .

[0021] like Figure 1 As shown, the flow rate of the air supply flow can be controlled by the valve 17, thereby controlling the rotation speed of the blades 8 of the pneumatic fan 3 to achieve a stepless speed change effect; the drain valve 18 is used to discharge wind source impurities such as oil and water remaining in the oil-water separator 2, effectively ensuring that the drive 4 will not be unstable in wind pressure due to wind source impurities and will not rust after long-term use, which directly improves the service life.

[0022] A plurality of atomizing nozzles 19 are arranged on the outer wall of the front cover 7 .

[0023] like Figure 2 As shown, the atomizing nozzle 19 of the underground dust prevention spray device is installed at the front end of the front cover 7 of the pneumatic fan 3, the pneumatic fan 3 and the dust prevention spray device are turned on, and the water mist sprayed by the atomizing nozzle 19 is diffused to the dust reduction location, which can effectively improve the dust flying situation in the workplace; at the same time, an ice placing platform is placed in front of or behind the blades 8 of the pneumatic fan 3, and ice cubes are placed on the ice placing platform. The low temperature emitted by the ice is carried by the flow of air and effectively diffused to the workplace, which can effectively reduce the temperature of the workplace.

[0024] A support rod 20 is provided below the roller 5 , and a counterweight base 21 is provided at the bottom of the support rod 20 .

[0025] Principle of use: The pneumatic fan 3 proposed in the utility model can be extended to a variety of products for use, such as being used as a dust reduction device, a heat dissipation device for workers in a high temperature environment, and an exhaust fan for an underground garage chamber to drive air circulation in the garage and improve the garage environment; and the pneumatic fan 3 can be used alone or in series. When multiple pneumatic fans 3 are used together, the compressed air on the compressed air pipeline 1 passes through the oil-water separator 2 to filter out the oil and water impurities therein, and enters the casing 4 through the air inlet pipe 9. The compressed air will drive the impeller 12 in the casing 4 to rotate, and a pneumatic high-pressure chamber will be formed in the casing 4. The rotation of the impeller 12 will drive the transmission shaft 6 to rotate in the roller 5, and the rotation of the transmission shaft 6 will drive the fan blades 8 to rotate in the front cover 7.

[0026] The beneficial effects of the wind-driven fan 3 are:

[0027] 1. Direct economic benefits: 1. No power supply required, explosion-proof. If calculated by fan power: Annual electricity savings: 0.5KW*24*365=4320KW / h, about 3456 yuan / unit.

[0028] The device has a simple principle and can be made of waste materials. Each set costs about 180 yuan.

[0029] 2. Indirect economic benefits: If each high-temperature site (mining face) and garage uses this equipment, one unit can save 3,500 yuan in electricity. If it is promoted and used globally, initially 1,000 units can save 3.5 million yuan in electricity each year, and with the subsequent promotion and use, the economic benefits will be even higher.

[0030] 3. Social benefit analysis: Since the design of the device was completed, 7 devices have been used in 4 locations. They have been running smoothly and have never had any malfunctions. They are safe and reliable, and have a good cooling effect on high-temperature places and garages. Their performance and safety have been well received by employees. They have played a cooling role in high-temperature places in our mine, and have recycled and transformed waste, saving a lot of material costs.

[0031] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A new type of pneumatic cooling device for tunnels, characterized by: The invention comprises a compressed air pipeline (1), an oil-water separator (2) and a plurality of pneumatic fans (3), wherein the power sources of the plurality of pneumatic fans (3) are connected in series, and each of the pneumatic fans (3) comprises a casing (4), a roller (5), a transmission shaft (6), a front cover (7) and fan blades (8) arranged in the front cover (7). An air inlet pipe (9) is arranged at the upper end of the casing (4), and the air inlet pipe (9) of the casing (4) close to the oil-water separator (2) is connected to the oil-water separator (2) through a first air pipe (10). One end of the separator (2) away from the casing (4) is connected to the compressed air pipeline (1), the lower end of the casing (4) is provided with an air outlet pipe (11), an impeller (12) is provided in the casing (4), the roller (5) is arranged between the casing (4) and the front cover (7), both ends of the transmission shaft (6) are rotatably arranged in the roller (5) through bearings (13), one end of the transmission shaft (6) passes through the casing (4) and is connected to the impeller (12), and the other end of the transmission shaft (6) passes through the front cover (7) and is connected to the fan blade (8) in the front cover (7).

2. A novel pneumatic cooling device for tunnels according to claim 1, characterized in that: A plurality of the casings (4) are connected one by one in sequence via the second air duct (14).

3. A novel pneumatic cooling device for tunnels according to claim 1, characterized in that: The outer wall of the casing (4) is wrapped with a sound insulation layer (15), and a silencer (16) is provided on the outer wall of the air outlet pipe (11) on the side of the casing (4) away from the oil-water separator (2).

4. The novel pneumatic cooling device for tunnel according to claim 1 is characterized in that: A valve (17) is installed on the first air duct (10), and a drain valve (18) is installed on one side of the oil-water separator (2).

5. The novel pneumatic cooling device for tunnel according to claim 1 is characterized in that: The air inlet pipe (9) and the air outlet pipe (11) are both high-pressure pipes with a diameter of 19 mm.

6. The novel pneumatic cooling device for tunnel according to claim 1 is characterized in that: A plurality of atomizing nozzles (19) are provided on the outer wall of the front cover (7).

7. The novel pneumatic cooling device for tunnel according to claim 1 is characterized in that: A support rod (20) is provided below the roller (5), and a counterweight base (21) is provided at the bottom of the support rod (20).

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