Exhaust waste heat recovery equipment for coal mine air compressor

Abstract

The utility model relates to the technical field of waste heat recovery, in particular to exhaust waste heat recovery equipment of a coal mine air compressor. Comprising an air compressor, the air compressor is connected with a cooling oil pipe and an exhaust pipe, water storage tanks used for waste heat recovery are installed on the outer sides of the cooling oil pipe and the exhaust pipe, the cooling oil pipe enters one water storage tank, and an oil return opening of the cooling oil pipe is connected with the air compressor; the exhaust pipe enters the other water storage tank and is connected with a smoke pipe for exhausting; the tops of the two water storage tanks are connected with a gas collecting pipe; one side of the gas collecting pipe is connected with a booster pump, the booster pump is connected with a steam bin, turbine fan blades are arranged in the steam bin, and the turbine fan blades are connected to the driving end of the generator in a sleeving mode; heat exchange and steam utilization are combined, and the utilization rate of waste heat of the air compressor is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of waste heat recovery, in particular to a coal mine air compressor exhaust waste heat recovery device. Background Art

[0002] Waste heat recovery refers to the recycling and reuse of waste heat generated by industrial processes. Waste heat resources are secondary energy, which are the product of the conversion of primary energy or combustible materials, or the heat generated during the combustion of fuel and the remaining heat after completing a certain process.

[0003] In the waste heat recovery process, only multiple groups of water tanks are heated to recover heat. The waste heat recovery and utilization method is single and the waste heat cannot be fully utilized, resulting in a low waste heat recovery and utilization rate, causing waste and failing to meet production needs. Utility Model Content

[0004] The utility model overcomes the shortcomings of the prior art and provides a coal mine air compressor exhaust waste heat recovery device to improve the waste heat recovery rate.

[0005] In order to achieve the above object, the present invention is implemented through the following technical solutions:

[0006] A coal mine air compressor exhaust waste heat recovery device includes an air compressor, which is connected to a cooling oil pipe and an exhaust pipe. Water tanks for waste heat recovery are installed on the outside of the cooling oil pipe and the exhaust pipe. The cooling oil pipe enters one of the water tanks and is distributed therein in a circuitous coil form, and the return oil port of the cooling oil pipe is connected to the air compressor; the exhaust pipe enters the other water tank and is distributed therein in a spiral tubular structure, and the exhaust pipe is connected to a smoke pipe for exhaust; the tops of the two water tanks are connected to an air collecting pipe; a booster pump is connected to one side of the air collecting pipe, and the booster pump is connected to a steam bunker. Turbine blades are provided in the steam bunker, and the turbine blades are sleeved on the drive end of the generator.

[0007] Furthermore, it also includes a control box; the air compressor and the water tank are both arranged in the control box.

[0008] Furthermore, the exhaust pipe has a filtering structure inside.

[0009] Furthermore, the smoke pipe is arranged outside the water storage tank connected to the exhaust pipe.

[0010] Furthermore, the steam bunker, booster pump, turbine blades and generator are all arranged on top of the control box.

[0011] Furthermore, a transmission rod is respectively provided in the two water tanks, the top ends of the two transmission rods are meshed with drive rods, a rotating part is provided between the transmission rods and the drive rods, a drive blade is installed on the outside of the transmission rods through a thread, and a transmission part is sleeved between the drive rods and the outside of the generator drive end.

[0012] Furthermore, the rotating member includes two pairs of bevel gears, one pair of bevel gears is installed on the top of the transmission rod, and the other pair of bevel gears is installed on both ends of the driving rod.

[0013] Furthermore, the transmission member is a transmission belt.

[0014] Furthermore, both water storage tanks are connected to a water inlet pipe.

[0015] The beneficial effects of the present invention compared to the prior art are as follows:

[0016] First, the utility model covers the steam outlet of the water storage tank through the gas collecting pipe, so that the steam can be fully utilized, and then cooperates with the booster pump to drive the steam to be ejected into the steam bin, and at the same time drives the turbine blades to rotate. The turbine blades will drive the drive rod and the transmission rod to rotate through the transmission belt. During the rotation of the transmission rod, the drive blades will also drive the drive blades to move vertically. During the movement of the drive blades, the water inside the water storage tank will be stirred, thereby bringing out more steam. The steam collection efficiency is higher when combined with the gas collecting pipe, and the booster pump and the turbine blades are used to drive the generator to operate, which further increases the power production, accelerates the efficiency of power generation, and improves the utilization rate of waste heat recovery.

[0017] Secondly, the present invention increases the contact area between the exhaust pipe and the cooling oil pipe and the water by setting the exhaust pipe and the cooling oil pipe connected to one side of the air compressor into a curved shape and then connecting them into the water tank. The water can be heated more quickly, thereby improving the utilization rate of the waste heat of the air compressor. At the same time, the engine oil exchanges heat with the water through the cooling oil pipe, and the engine oil can operate better in the air compressor. The high-temperature gas discharged from the air compressor can be directly discharged into the atmosphere through filtration and cooling of the exhaust pipe, reducing air pollution. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the air compressor of the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the water storage tank of the utility model;

[0021] Figure 4 This is a schematic diagram of the cooling oil pipe structure of the utility model;

[0022] Figure 5This is a schematic diagram of the transmission rod structure of the utility model.

[0023] Among them: 1. Control box; 2. Air compressor; 3. Water inlet pipe; 4. Water storage tank; 5. Exhaust pipe; 6. Cooling oil pipe; 7. Smoke pipe; 8. Drive rod; 9. Bevel gear; 10. Transmission rod; 11. Drive fan blade; 12. Gas collecting pipe; 13. Booster pump; 14. Steam bin; 15. Turbine fan blade; 16. Condenser; 17. Transmission belt; 18. Generator. DETAILED DESCRIPTION

[0024] In order to make the technical problems, technical solutions, and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail with reference to the embodiments and accompanying drawings. It should be understood that the specific embodiments described herein are merely for the purpose of explaining the present invention and are not intended to limit the present invention. The technical solutions of the present invention will be described in detail below with reference to the embodiments and accompanying drawings, but the scope of protection is not limited thereto.

[0025] See also Figures 1 to 5 , This embodiment proposes a coal mine air compressor exhaust waste heat recovery device, including a control box 1, an air compressor 2 is installed on one side of the control box 1, a cooling oil pipe 6 is connected to one side of the air compressor 2, and an exhaust pipe 5 with an internal filtering structure is equidistantly installed on the side of one side of the air compressor 2, and a water storage tank 4 for waste heat recovery is installed on the outside of the cooling oil pipe 6 and the exhaust pipe 5. Both water storage tanks 4 are connected to a water inlet pipe 3, and water is stored in the water storage tank 4 through the water inlet pipe 3; the cooling oil pipe 6 enters one of the water storage tanks 4 and is distributed in a circuitous coil form therein to increase the heat exchange area, and the end of the cooling oil pipe 6 is finally connected to the air compressor 2, so that the cooled oil returns to the air compressor 2 for use; similarly, the exhaust pipe 5 enters the other water storage tank 4 and is distributed in a spiral tubular structure therein to increase the heat exchange area; a smoke pipe 7 for exhaust is provided on the outside of the water storage tank 4 connected to the exhaust pipe 5, and the exhaust pipe 5 is connected to the smoke pipe 7. The gas after heat extraction enters the smoke pipe 7 through the exhaust pipe 5 and is then discharged. The provision of the cooling oil pipe 6 and the exhaust pipe 5 allows heat exchange between the hot gas discharged from the air compressor 2 and the hot engine oil used internally, thereby improving the utilization rate of waste heat.

[0026] Furthermore, the tops of the two water storage tanks 4 are both connected to a gas collecting pipe 12; the water that has absorbed heat will generate steam in the water storage tank 4, and the steam will be collected through the gas collecting pipe 12; a booster pump 13 is connected to one side of the gas collecting pipe 12, and a steam bin 14 is installed on one side of the top of the control box 1. The booster pump 13 is connected to the steam bin 14, and a turbine blade 15 is installed in the steam bin 14. A condenser pipe 16 is installed at the bottom of the steam bin 14; a generator 18 is also installed on the top of the control box 1; the turbine blade 15 is sleeved on the driving end of the generator 18; the steam in the gas collecting pipe 12 enters the steam bin 14 through the booster pump 13, and then drives the generator 18 to operate and generate electricity through the turbine blade 15, so that the steam in the water storage tank 4 can be converted into electrical energy for use. In addition, the hot water in the water storage tank 4 can also be used.

[0027] To improve the efficiency of generator 18, a transmission rod 10 is installed in each of the two water storage tanks 4. The top ends of the two transmission rods 10 are meshed with drive rods 8. A rotating member is provided between the transmission rods 10 and the drive rods 8. The rotating member includes two pairs of bevel gears 9, one of which is mounted at the top of the transmission rods 10, and the other pair of bevel gears 9 is mounted at both ends of the drive rods 8. Drive blades 11 are threadedly mounted on the outside of the transmission rods 10, and a transmission member is sleeved on the middle outer portion of the drive rods 8. The transmission member includes a transmission belt 17 sleeved on the middle outer portion of the drive rods 8. The transmission belt 17 is sleeved on the outer side of the driving end of the generator 18.

[0028] This embodiment proposes a working principle of a coal mine air compressor exhaust waste heat recovery device:

[0029] During use, the staff first adds water to the water tank 4 from the water inlet pipe 3, and then the high-temperature oil of the air compressor 2 will exchange heat with the water through the cooling oil pipe 6 during operation, so that the oil is cooled and can operate better in the air compressor 2. At the same time, the high-temperature gas discharged by the air compressor 2 will be filtered and cooled by the exhaust pipe 5 and can be directly discharged into the atmosphere, reducing air pollution. The exhaust pipe 5 and the cooling oil pipe 6 are both arranged to be curved and then connected to the water tank 4, which increases the contact area between the exhaust pipe 5 and the cooling oil pipe 6 and the water, can heat the water more quickly, and improves the utilization rate of the waste heat of the air compressor 2.

[0030] After the water evaporates, it is connected to the steam outlet of the water tank 4 through the gas collecting pipe 12, so that the steam can be fully utilized, and then cooperated with the booster pump 13 to drive the steam to be ejected into the steam bin 14, and at the same time drive the turbine blades 15 to rotate. The turbine blades 15 will drive the drive rod 8 and the transmission rod 10 to rotate through the transmission belt 17. During the rotation of the transmission rod 10, it will also drive the driving blades 11 to move vertically. During the movement of the driving blades 11, the water inside the water tank 4 will be stirred, thereby bringing out more steam. The steam collection efficiency is higher in conjunction with the gas collecting pipe 12, and at the same time, the booster pump 13 and the turbine blades 15 drive the generator 18 to operate, further improving the power production and accelerating the efficiency of power generation.

[0031] The coal miners not only have hot water but also have electricity for daily use.

[0032] The above content is a further detailed description of the present invention in combination with a specific preferred embodiment. It cannot be determined that the specific embodiments of the present invention are limited to this. For ordinary technicians in the technical field to which the present invention belongs, they can make several simple deductions or substitutions without departing from the present invention, which should be regarded as belonging to the present invention and the scope of patent protection determined by the submitted claims.

Claims

1. A coal mine air compressor exhaust waste heat recovery device, comprising an air compressor (2), characterized in that: The air compressor (2) is connected to a cooling oil pipe (6) and an exhaust pipe (5). Water storage tanks (4) for waste heat recovery are installed on the outside of the cooling oil pipe (6) and the exhaust pipe (5). The cooling oil pipe (6) enters one of the water storage tanks (4) and is distributed in a circuitous coil form therein. The return oil port of the cooling oil pipe (6) is connected to the air compressor (2); the exhaust pipe (5) enters the other water storage tank (4) and is distributed in a spiral tube structure therein. The exhaust pipe (5) is connected to a smoke pipe (7) for exhaust. The tops of the two water storage tanks (4) are connected to an air collecting pipe (12); a booster pump (13) is connected to one side of the air collecting pipe (12), and the booster pump (13) is connected to a steam bin (14). Turbine blades (15) are provided in the steam bin (14), and the turbine blades (15) are sleeved on the driving end of the generator (18).

2. The coal mine air compressor exhaust waste heat recovery device according to claim 1, characterized in that: It also includes a control box (1); the air compressor (2) and the water storage tank (4) are both arranged in the control box (1).

3. The coal mine air compressor exhaust waste heat recovery device according to claim 1, characterized in that: The exhaust pipe (5) has a filtering structure inside.

4. The coal mine air compressor exhaust waste heat recovery device according to claim 1, characterized in that: The smoke pipe (7) is arranged outside the water storage tank (4) connected to the exhaust pipe (5).

5. The coal mine air compressor exhaust waste heat recovery device according to claim 2, characterized in that: The steam tank (14), the booster pump (13), the turbine blades (15) and the generator (18) are all arranged on the top of the control box (1).

6. The coal mine air compressor exhaust waste heat recovery device according to claim 1, characterized in that: Transmission rods (10) are respectively provided in the two water storage tanks (4). The top ends of the two transmission rods (10) are meshedly connected with drive rods (8). A rotating member is provided between the transmission rods (10) and the drive rods (8). Drive blades (11) are threadedly mounted on the outside of the transmission rods (10). A transmission member is sleeved between the drive rods (8) and the outside of the drive end of the generator (18).

7. The coal mine air compressor exhaust waste heat recovery device according to claim 6, characterized in that: The rotating member comprises two pairs of bevel gears (9), one pair of bevel gears (9) is mounted on the top of the transmission rod (10), and the other pair of bevel gears (9) is mounted on both ends of the driving rod (8).

8. The coal mine air compressor exhaust waste heat recovery device according to claim 6, characterized in that: The transmission member is a transmission belt (17).

9. The coal mine air compressor exhaust waste heat recovery device according to claim 1, characterized in that: Both water storage tanks (4) are connected to a water inlet pipe (3).

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