Waste heat recovery device of air compressor

Abstract

The utility model discloses an air compressor waste heat recovery device, and particularly relates to the technical field of air compressors, the air compressor waste heat recovery device comprises a base, the lower end of the base is fixedly connected with supporting legs, the right portion of the upper end of the base is fixedly connected with an air compressor, and the rear portion of the upper end of the base is fixedly connected with a heat exchange device. According to the waste heat recovery device of the air compressor, the stirring fan blades are additionally arranged, so that heat of the oil pipe can be transferred more sufficiently, more waste heat can be recycled, and the waste heat recovery device of the air compressor has the advantages of being energy-saving, environment-friendly, energy-saving, environment-friendly, energy-saving and environment-friendly. Therefore, the energy utilization efficiency of the whole system is improved, discharged hot water can be filtered, a filter screen can effectively intercept solid particle impurities such as metal chips and silt in water, if the impurities are directly discharged, the temperature in the cold water tank can be kept stable in different environments, and the energy utilization efficiency of the system is improved. And the influence of external environment factors such as temperature change and the like is avoided.

Description

Technical Field

[0001] This utility model relates to the field of air compressor technology, specifically to an air compressor waste heat recovery device. Background Technology

[0002] Air compressors are widely used in industrial production processes. During operation, they convert a large amount of electrical energy into mechanical energy, inevitably generating a significant amount of heat. In traditional models, most of this waste heat is directly released into the atmosphere, resulting in energy waste and environmental thermal pollution. Existing waste heat recovery methods suffer from problems such as low recovery efficiency, impact on the operational stability of air compressors, or narrow applicability. Therefore, there is an urgent need for a highly efficient, stable, and reliable waste heat recovery device to improve this situation.

[0003] Chinese patent document CN206816470U discloses a waste heat recovery device for an air compressor. It includes a heat exchanger with a spiral oil pipe inside. One end of the spiral oil pipe at the top of the heat exchanger is sealed and connected to an oil pipe (first pipe) for connection to the return oil pipe of the air compressor. The other end of the spiral oil pipe at the bottom of the heat exchanger is sealed and connected to an oil pipe (second pipe) for connection to the outlet oil pipe of the air compressor. Heat-conducting oil flows through the spiral oil pipe, forming a heat exchange channel. An inlet pipe and an outlet pipe are located on one side of the heat exchanger. An ultrasonic generator for emitting ultrasonic waves into the medium inside the heat exchanger is located at the bottom of the heat exchanger. A drain pipe is also located at the bottom of the heat exchanger.

[0004] Although the equipment in the aforementioned literature can perform heat exchange and recovery, its structure is relatively simple, resulting in slightly insufficient efficiency in the heat exchange process, which reduces the practical value of the equipment. Furthermore, the discharged hot water has poor filtration effect, affecting subsequent normal use and causing inconvenience to users. Utility Model Content

[0005] The main purpose of this utility model is to provide a waste heat recovery device for air compressors, which can effectively solve the above-mentioned problems.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] An air compressor waste heat recovery device includes a base, a support foot fixedly connected to the lower end of the base, an air compressor fixedly connected to the upper right part of the base, a heat exchange device fixedly connected to the upper rear part of the base, a filter device fixedly connected to the front right part of the heat exchange device, and a heat insulation device fixedly connected to the upper left part of the base.

[0008] The heat exchange device includes a heat exchange box, the lower end of which is fixedly connected to the upper rear part of the base;

[0009] The filtration device includes a first pump, the fixed end of which is fixedly connected to the front right side of the heat exchange device.

[0010] The heat preservation device includes a bracket, the lower end of which is fixedly connected to the upper left part of the base.

[0011] Preferably, a controller is fixedly connected to the upper end of the base, and an anti-slip pad is fixedly connected to the lower end of the support foot.

[0012] Preferably, a display is fixedly connected to the rear end of the heat exchange box, a first insulation layer is fixedly connected to the inner wall of the heat exchange box, a motor is fixedly connected to the left end of the heat exchange box, and a fan blade is fixedly connected to the output end of the motor.

[0013] Preferably, an oil inlet pipe is fixedly connected to the right end of the heat exchange box, a valve is fixedly connected to one side of the oil inlet pipe, a second insulation layer is fixedly connected to the right end of the oil inlet pipe, and an oil outlet pipe is fixedly connected to one end of the oil inlet pipe.

[0014] Preferably, the output end of the first pump is fixedly connected to a water inlet pipe, and the front end of the water inlet pipe is fixedly connected to a filter box. The inner wall of the filter box is movably connected to a mesh filter plate, an activated carbon filter plate, and an oil-absorbing resin filter plate.

[0015] Preferably, a collection box is fixedly connected to the lower right side of the filter box, a drain pipe is fixedly connected to the front end of the collection box, a cover plate is fixedly connected to the upper right side of the filter box, and a valve is fixedly connected to one side of the drain pipe.

[0016] Preferably, a cold water tank is fixedly connected to the upper end of the bracket, and a second pump and a water inlet are fixedly connected to the upper end of the cold water tank, and a water delivery pipe is fixedly connected to the output end of the second pump.

[0017] Preferably, a third insulation layer is fixedly connected to the outer wall of the cold water tank, a temperature converter and a temperature sensor are fixedly connected to one side of the cold water tank, and a liquid level window is fixedly connected to the front end of the cold water tank.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. This utility model provides a waste heat recovery device for an air compressor. The device is equipped with a heat exchanger, which can improve heat exchange efficiency. The addition of a stirring fan blade makes the heat transfer of the oil pipe more complete, meaning that more waste heat can be recovered and utilized, thereby improving the energy utilization efficiency of the entire system. The stirring fan blade stirs the water in the heat exchange box, making the water temperature distribution more uniform and avoiding local water temperature being too high or too low. This helps to ensure that the heat transfer efficiency of the oil pipe is relatively consistent in all positions in the heat exchange box, preventing the overall heat exchange effect from being affected by poor local heat exchange. The uniform water flow and temperature distribution can reduce the deposition of impurities such as minerals in the water on the heat exchange surface, reducing the possibility of scale formation. Scale formation will seriously affect the heat exchange efficiency and may even block the water flow channel. The oil enters from the inlet pipe, flows through the pipe and passes through the heat exchange box once, and then flows back to the air compressor from the outlet pipe. The exposed oil pipe is equipped with a second insulation layer to prevent heat loss from affecting the heat exchange effect. After cold water is injected, the motor drives the fan blade to rotate, which can stir the cold water in the heat exchange box, keep it flowing, and promote heat exchange efficiency.

[0020] 2. This utility model provides a waste heat recovery device for an air compressor. This device is equipped with a filtration system to filter discharged hot water. The filter screen effectively intercepts solid particulate impurities in the water, such as metal shavings and silt. Direct discharge of these impurities could damage the aquatic ecosystem and affect the habitat of aquatic organisms. The activated carbon filter plate adsorbs organic matter and some dissolved impurities in the water, further purifying the water. The oil-absorbing resin filter plate specifically filters oil, preventing it from entering natural water bodies. The filtered clean water will not cause blockage or corrosion to the drainage system's pipes and equipment during discharge. Filtered water reduces this risk and protects the drainage system. The first pump draws hot water through the inlet pipe to the filter box, where it undergoes three layers of filtration: a mesh filter plate, an activated carbon filter plate, and an oil-absorbing resin filter plate. The filter box has a sloped plate to facilitate hot water sliding down and undergoing final filtration through a filter screen on one side before entering the collection box. Discharge can be controlled by opening and closing a valve on the drain pipe. A cover is installed at the top of the filter box for easy cleaning, and a sealing ring is installed at the seams to prevent overflow when closed. A temperature sensor monitors the internal temperature in real time and displays data to alert staff and prevent burns.

[0021] 3. This utility model provides a waste heat recovery device for an air compressor. This device is equipped with an insulation unit, which ensures that the temperature inside the cold water tank remains stable under different environmental conditions. External environmental factors such as temperature changes and solar radiation may cause fluctuations in the water temperature inside the cold water tank. By setting up insulation components, the transmission of external heat can be effectively blocked, keeping the water temperature inside the tank relatively stable. The insulation components can control the water temperature fluctuation within a small range, ensuring that the system always operates under suitable water temperature conditions. Stable water temperature helps improve the reliability of the entire waste heat recovery system. The refrigeration temperature control component can automatically adjust the cooling capacity according to changes in the water temperature inside the tank, ensuring that the water temperature is always within the optimal operating range. Water can be stored in the cold water tank, and a second pump pumps the water out and sends it to the heat exchange box through a water pipe. The temperature sensor monitors the water temperature in real time, and a temperature converter helps maintain a suitable temperature inside the cold water tank. A third insulation layer further ensures internal temperature stability. A liquid level window facilitates observation of the water level inside the cold water tank, allowing for timely replenishment. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the heat exchange device structure of this utility model;

[0024] Figure 3 This is a schematic diagram of the filter device structure of this utility model;

[0025] Figure 4 This is a schematic diagram of the thermal insulation device of this utility model;

[0026] Figure 5 This is a side view of the structure of this utility model.

[0027] In the diagram: 1. Base; 2. Support leg; 3. Air compressor; 4. Heat exchanger; 41. Heat exchange box; 42. Display; 43. First insulation layer; 44. Motor; 45. Fan blade; 46. Oil inlet pipe; 47. Valve; 48. Second insulation layer; 49. Oil outlet pipe; 5. Filtration device; 51. First pump; 52. Water inlet pipe; 53. Filter box; 54. Mesh filter plate; 55. Activated carbon filter plate; 56. Oil-absorbing resin filter plate; 57. Collection box; 58. Drain pipe; 59. Cover plate; 6. Insulation device; 61. Bracket; 62. Cold water tank; 63. Second pump; 64. Water supply pipe; 65. Third insulation layer; 66. Temperature converter; 67. Liquid level window. Detailed Implementation

[0028] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0029] like Figure 1 and Figure 5 As shown, an air compressor waste heat recovery device includes a base 1, with a support foot 2 fixedly connected to the lower end of the base 1, an air compressor 3 fixedly connected to the upper right side of the base 1, and a heat exchange device 4 fixedly connected to the upper rear side of the base 1. This device can improve heat exchange efficiency. The addition of a stirring fan blade allows for more complete heat transfer from the oil pipes, meaning more waste heat can be recovered and utilized, thereby improving the overall energy efficiency of the system. The stirring fan blade agitates the water in the heat exchange tank, making the water temperature distribution more uniform and avoiding localized excessively high or low water temperatures, which helps to ensure... The heat transfer efficiency of the oil pipes is relatively consistent throughout the heat exchange box, preventing poor local heat exchange from affecting the overall heat exchange effect. Uniform water flow and temperature distribution reduce the deposition of minerals and other impurities on the heat exchange surface, lowering the likelihood of scale formation. Scale formation severely affects heat exchange efficiency and may even block water flow channels. A filter device 5 is fixedly connected to the front right side of the heat exchange device 4. This device filters the discharged hot water, effectively intercepting solid particulate impurities such as metal shavings and sediment. Direct discharge of these impurities could potentially damage the water. Damage to the aquatic ecosystem in the natural environment affects the living environment of aquatic organisms. Activated carbon filter plates can adsorb organic matter and some dissolved impurities in the water, further purifying the water quality. Oil-absorbing resin filter plates are specifically designed to filter oil, preventing oil from entering natural water bodies. The filtered clean water will not cause blockage or corrosion to the pipes and equipment of the drainage system during discharge. Filtered water can reduce this risk and protect the smooth flow of the drainage system. The upper left side of the base 1 is fixedly connected to a heat preservation device 6. This device can keep the temperature in the cold water tank stable under different environments. External environmental factors such as temperature changes and solar radiation may cause fluctuations in the water temperature in the cold water storage tank. By setting up heat preservation components, the entry and exit of external heat can be effectively blocked, keeping the water temperature in the tank relatively stable. The heat preservation components can control the water temperature fluctuation within a small range, ensuring that the system always operates under suitable water temperature conditions. Stable water temperature helps improve the reliability of the entire waste heat recovery system. The cooling temperature control component can automatically adjust the cooling capacity according to the changes in the water temperature in the tank, ensuring that the water temperature is always within the optimal operating range.

[0030] The heat exchange device 4 includes a heat exchange box 41, the lower end of which is fixedly connected to the upper rear part of the base 1.

[0031] The filter device 5 includes a first pump 51, the fixed end of which is fixedly connected to the front right side of the heat exchange device 4.

[0032] The heat preservation device 6 includes a bracket 61, the lower end of which is fixedly connected to the upper left part of the base 1;

[0033] A controller is fixedly connected to the upper end of the base 1, and an anti-slip pad is fixedly connected to the lower end of the support foot 2.

[0034] like Figure 2 As shown, a display 42 is fixedly connected to the rear end of the heat exchange box 41, a first insulation layer 43 is fixedly connected to the inner wall of the heat exchange box 41, a motor 44 is fixedly connected to the left end of the heat exchange box 41, a fan blade 45 is fixedly connected to the output end of the motor 44, an oil inlet pipe 46 is fixedly connected to the right end of the heat exchange box 41, a valve 47 is fixedly connected to one side of the oil inlet pipe 46, a second insulation layer 48 is fixedly connected to the right end of the oil inlet pipe 46, and an oil outlet pipe 49 is fixedly connected to one end of the oil inlet pipe 46. The oil enters from the oil inlet pipe 46, flows through the heat exchange box 41, and then flows back to the air compressor 3 from the oil outlet pipe 49. The exposed oil pipe is provided with a second insulation layer 48 to prevent heat loss from affecting the heat exchange effect. After cold water is injected, the fan blade 45 is driven by the motor 44 to rotate, which can stir the cold water in the heat exchange box 41, keep it flowing, and promote heat exchange efficiency.

[0035] like Figure 3 As shown, the output end of the first pump 51 is fixedly connected to a water inlet pipe 52, and the front end of the water inlet pipe 52 is fixedly connected to a filter box 53. The inner wall of the filter box 53 is movably connected to a mesh filter plate 54, an activated carbon filter plate 55, and an oil-absorbing resin filter plate 56. The lower right end of the filter box 53 is fixedly connected to a collection box 57, and the front end of the collection box 57 is fixedly connected to a drain pipe 58. The upper right end of the filter box 53 is fixedly connected to a cover plate 59, and a valve is fixedly connected to one side of the drain pipe 58. Hot water is drawn out by the first pump 51 and transported to the filter box 53 through the water inlet pipe 52. The water then undergoes three layers of filtration: a mesh filter plate 54, an activated carbon filter plate 55, and an oil-absorbing resin filter plate 56. A sloped plate is installed inside the filter box 53 to facilitate the flow of hot water. After final filtration through the filter screen on one side, the water enters the collection box 57. The discharge can be controlled by opening and closing the valve on the drain pipe 58. A cover plate 59 is installed at the top of the filter box 53 to facilitate cleaning of the interior. A sealing ring is installed at the seam so that there is no need to worry about overflow when closed. A temperature sensor monitors the internal temperature in real time and displays the data to remind staff to avoid burns.

[0036] like Figure 4As shown, a cold water tank 62 is fixedly connected to the upper end of the bracket 61. A second pump 63 and a water inlet are fixedly connected to the upper end of the cold water tank 62. A water supply pipe 64 is fixedly connected to the output end of the second pump 63. A third insulation layer 65 is fixedly connected to the outer wall of the cold water tank 62. A temperature converter 66 and a temperature sensor are fixedly connected to one side of the cold water tank 62. A liquid level window 67 is fixedly connected to the front end of the cold water tank 62. Water can be stored in the cold water tank 62. The second pump 63 pumps water out and sends it into the heat exchange box through the water supply pipe 64. The temperature sensor monitors the water temperature in real time, and the temperature converter 66 helps to maintain a suitable water temperature in the cold water tank 62. The third insulation layer 65 further ensures the stability of the internal temperature. The liquid level window 67 facilitates the observation of the water level inside the cold water tank 62, allowing for timely replenishment.

[0037] The working principle of this utility model is as follows: Through the heat exchange device 4, oil enters from the inlet pipe 46, flows through the heat exchange box 41, and then flows back to the air compressor 3 from the outlet pipe 49. The exposed oil pipe is equipped with a second insulation layer 48 to prevent heat loss and maintain the heat exchange effect. After cold water is injected, the fan blades 45 driven by the motor 44 rotate to stir the cold water in the heat exchange box 41, keeping it flowing and promoting heat exchange efficiency. Using the filtration device 5, the first pump 51 draws out hot water and transports it to the filter box 53 through the inlet pipe 52. Then, it undergoes three layers of filtration: a mesh filter plate 54, an activated carbon filter plate 55, and an oil-absorbing resin filter plate 56. The filter box 53 is equipped with an inclined plate with a certain slope to facilitate the hot water sliding down and passing through the filter screen on one side. After final filtration, the water enters the collection tank 57. Discharge can be controlled by opening and closing the valve on the drain pipe 58. A cover plate 59 is installed at the top of the filter box 53, which can be opened for easy cleaning of the interior. A sealing ring is installed at the seam, so there is no need to worry about overflow when closed. The internal temperature is monitored in real time by a temperature sensor and the data is displayed to remind staff to avoid burns. Water can be stored in the cold water tank 62 through the insulation device 6. The second pump 63 draws water out and sends it to the heat exchange box through the water pipe 64. The temperature sensor monitors the water temperature in the cold water tank 62 in real time and the temperature converter 66 keeps the water temperature in the cold water tank 62 at a suitable temperature. A third insulation layer 65 is set to further ensure the stability of the internal temperature. The liquid level window 67 makes it easy to observe the water level in the cold water tank 62 and replenish it in time.

[0038] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A waste heat recovery device for an air compressor, comprising a base (1), characterized in that: The lower end of the base (1) is fixedly connected to a support foot (2), the upper right side of the base (1) is fixedly connected to an air compressor (3), the upper rear part of the base (1) is fixedly connected to a heat exchange device (4), the front right side of the heat exchange device (4) is fixedly connected to a filter device (5), and the upper left side of the base (1) is fixedly connected to a heat insulation device (6). The heat exchange device (4) includes a heat exchange box (41), the lower end of which is fixedly connected to the upper rear part of the base (1). The filtration device (5) includes a first pump (51), the fixed end of which is fixedly connected to the front right side of the heat exchange device (4). The heat preservation device (6) includes a bracket (61), the lower end of which is fixedly connected to the upper left part of the base (1).

2. The air compressor waste heat recovery device according to claim 1, characterized in that: The upper end of the base (1) is fixedly connected to a controller, and the lower end of the support foot (2) is fixedly connected to an anti-slip pad.

3. The air compressor waste heat recovery device according to claim 1, characterized in that: A display (42) is fixedly connected to the rear end of the heat exchange box (41), a first insulation layer (43) is fixedly connected to the inner wall of the heat exchange box (41), a motor (44) is fixedly connected to the left end of the heat exchange box (41), and a fan blade (45) is fixedly connected to the output end of the motor (44).

4. The air compressor waste heat recovery device according to claim 3, characterized in that: The right end of the heat exchange box (41) is fixedly connected to an oil inlet pipe (46), a valve (47) is fixedly connected to one side of the oil inlet pipe (46), a second insulation layer (48) is fixedly connected to the right end of the oil inlet pipe (46), and an oil outlet pipe (49) is fixedly connected to one end of the oil inlet pipe (46).

5. The air compressor waste heat recovery device according to claim 1, characterized in that: The output end of the first pump (51) is fixedly connected to a water inlet pipe (52), and the front end of the water inlet pipe (52) is fixedly connected to a filter box (53). The inner wall of the filter box (53) is movably connected to a mesh filter plate (54), an activated carbon filter plate (55), and an oil-absorbing resin filter plate (56).

6. The waste heat recovery device for an air compressor according to claim 5, characterized in that: A collection box (57) is fixedly connected to the lower right side of the filter box (53), a drain pipe (58) is fixedly connected to the front end of the collection box (57), a cover plate (59) is fixedly connected to the upper right side of the filter box (53), and a valve is fixedly connected to one side of the drain pipe (58).

7. The air compressor waste heat recovery device according to claim 1, characterized in that: The upper end of the bracket (61) is fixedly connected to a cold water tank (62), and the upper end of the cold water tank (62) is fixedly connected to a second pump (63) and a water inlet, and the output end of the second pump (63) is fixedly connected to a water supply pipe (64).

8. The air compressor waste heat recovery device according to claim 7, characterized in that: The outer wall of the cold water tank (62) is fixedly connected to a third insulation layer (65), and a temperature converter (66) and a temperature sensor are fixedly connected to one side of the cold water tank (62). A liquid level window (67) is fixedly connected to the front end of the cold water tank (62).

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