Waste heat utilization device for air compressor

Abstract

The utility model discloses a waste heat utilization device for an air compressor, which relates to the technical field of air compressors and comprises an air compressor body and a heat exchange box, a water outlet pipe is arranged at the top of the heat exchange box, a water inlet pipe is arranged at the bottom of the heat exchange box, and the inner walls of two sides of the heat exchange box are fixedly connected with the same heat exchange pipe through connecting columns. The oil outlet end of the air compressor body communicates with the bottom of the heat exchange pipe through an oil inlet pipe, the oil inlet end of the air compressor body communicates with the top of the heat exchange pipe through an oil return pipe, mounting holes are formed in the inner walls of the periphery of the heat exchange pipe, heat exchange branch pipes are arranged on the inner walls of the mounting holes, and each heat exchange branch pipe is of a circular-arc-shaped structure. A plurality of heat conduction protrusions distributed at equal intervals are arranged on the outer walls of the heat exchange branch pipes. The heat transfer efficiency is improved, cold water is discharged through the water outlet pipe after being heated into warm water, the temperature discharged through the water outlet pipe can be used for daily bathing of people, and energy waste is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to air compressor technical field especially relates to a waste heat utilization device for air compressor. BACKGROUND

[0002] When the air compressor works, the electric energy is converted into mechanical energy, and the mechanical energy is converted into wind energy to produce heat energy, the lubricating oil exhaust temperature of the air compressor is as high as 85-102 degrees Celsius, and a large amount of heat energy is contained, this part of heat energy is called waste heat before being utilized, is taken away by the fan or cooling water, and is discharged into the surrounding environment, produces greenhouse effect and pollutes the environment.

[0003] Through the retrieval, the patent publication number of China is CN219474351U, a kind of air compressor waste heat recovery device, including box, the lower part of one side of the box is fixed with heat exchange pipe one, the upper wall of the side of the box away from the heat exchange pipe one is fixed with air inlet rod, one end of the heat exchange pipe one is fixedly connected with the lower part of the side adjacent to the air inlet rod, the upper wall of the side of the air inlet rod close to the heat exchange pipe one is fixed with heat exchange pipe two, the other end of the heat exchange pipe two extends to the outside of the box, the middle part of the side of the air inlet rod close to the heat exchange pipe one is fixed with connecting rod one, the middle part of the side of the air inlet rod away from the connecting rod one is fixed with connecting rod two, the other end of the connecting rod two extends to the outside of the box.

[0004] The prior art similar to the above-mentioned waste heat recovery device, the contact area between the heat exchange pipe and the liquid is small, which limits the effective heat exchange area and affects the heat transfer rate, so there is room for improvement. UTILITY MODEL CONTENT

[0005] The utility model aims at solving the shortcomings in the prior art and provides a waste heat utilization device for air compressor.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0007] The utility model relates to an air compressor waste heat utilization device, including air compressor body and heat exchange box, the top of heat exchange box is provided with the water outlet pipe, the bottom of heat exchange box is provided with the water inlet pipe, the both sides inner wall of heat exchange box is fixedly connected with same heat exchange pipe through the connecting column, the oil outlet end of air compressor body is connected with the bottom of heat exchange pipe through the oil inlet pipe, the oil inlet end of air compressor body is connected with the top of heat exchange pipe through the oil return pipe, the four around inner walls of heat exchange pipe all are seted up the mounting hole, the inner wall of mounting hole is provided with heat exchange branch pipe, heat exchange branch pipe is arc structure, the outer wall of heat exchange branch pipe is provided with a plurality of equidistance distribution's heat conduction protruding.

[0008] Through the above technical scheme: when using, the lubricating oil in the air compressor body enters into the heat exchange pipe from the oil inlet pipe, the cold water needing heat exchange from the outside enters into the heat exchange box, when the cold water contacts with the periphery of heat exchange pipe in the heat exchange box, the high temperature lubricating oil in the heat exchange pipe will heat in the form of heat transfer to the cold water, heat exchange branch pipe and heat conduction protruding can increase the contact area of lubricating oil and cold water, improve the heat transfer efficiency, when the cold water is heated into the warm water and is discharged through the water outlet pipe, the temperature of the water outlet pipe can be used for people daily bathing, avoid the waste of energy.

[0009] The utility model further sets up, the both sides inner walls of heat exchange pipe all are provided with flow guide protruding piece, flow guide protruding piece is half round type structure.

[0010] Through the above technical scheme: the setting of flow guide protruding piece can conveniently guide the lubricating oil into the heat exchange branch pipe, improve the heat exchange effect.

[0011] The utility model further sets up, the inside of heat exchange pipe is provided with shunt, the section of shunt is isosceles triangle structure.

[0012] Through the above technical scheme: the setting of shunt can guide the lubricating oil into the heat exchange branch pipe with flow guide protruding piece, improve the convenience of lubricating oil entering into the heat exchange branch pipe.

[0013] The utility model further sets up, the top inner wall and bottom inner wall of heat exchange pipe all are provided with flow guide plate, the section of flow guide plate is right triangle structure.

[0014] Through the above technical scheme: the setting of flow guide plate can conveniently dredge lubricating oil to enter into the heat exchange pipe and flow out the heat exchange pipe, avoid the situation that lubricating oil revolves and accumulates in the corner of heat exchange pipe.

[0015] The utility model further sets up, the inner wall of heat exchange pipe is seted up fixed hole, the inner wall of fixed hole is inserted with heat conduction column, one end of heat conduction column is connected with heat conduction protruding piece.

[0016] Through the above technical scheme: the setting of the heat conduction bump can increase the contact area between the lubricating oil and water in the heat exchange pipe, and further improve the heat exchange effect.

[0017] The utility model further sets up, the top and the bottom corner of heat exchange box all is provided with liquid guide piece, the surface of liquid guide piece is arc surface structure.

[0018] Through the above technical scheme: the setting of the liquid guide piece can conveniently dredge the flow of cold water in the heat exchange box, and avoid the occurrence of the situation that the cold water revolves and accumulates in the heat exchange box.

[0019] The utility model further sets up, the surface of connecting column is provided with flow hole, the section of flow hole is isosceles trapezoidal structure.

[0020] Through the above technical scheme: the setting of the flow hole can conveniently flow the cold water in the heat exchange box, avoid the hindrance of connecting column to water flow, and improve the smoothness of flow.

[0021] The utility model discloses the beneficial effect that:

[0022] 1、The air compressor is with waste heat utilization device, when using, the lubricating oil in the air compressor body is from the oil inlet pipe and enters the heat exchange pipe, and the cold water needing heat exchange from the water inlet pipe enters the heat exchange box, when the cold water contacts the periphery of heat exchange pipe in the heat exchange box, the high temperature lubricating oil in the heat exchange pipe will heat to the cold water in the form of heat transfer, and the heat exchange branch pipe and the heat conduction bump can increase the contact area of lubricating oil and cold water, improve the heat transfer efficiency, when the cold water is heated to hot water and is discharged through the water outlet pipe, the temperature of the water outlet pipe discharge can be used for people daily bathing, avoid the waste of energy.

[0023] 2、The air compressor is with waste heat utilization device, and the flow guide bump can conveniently guide the lubricating oil into the heat exchange branch pipe, improves the heat exchange effect, and the flow divider can cooperate with the flow guide bump and guide the lubricating oil into the heat exchange branch pipe, improves the convenience of lubricating oil into the heat exchange branch pipe, and the flow guide plate can conveniently dredge the lubricating oil into the heat exchange pipe and flow out of the heat exchange pipe, avoids the situation that the lubricating oil revolves and accumulates in the corner of heat exchange pipe. ACCURACY OF DRAWINGS

[0024] Figure 1 It is a kind of air compressor and waste heat utilization device's three-dimensional structure schematic diagram that the utility model proposes;

[0025] Figure 2 It is the heat exchange box sectional structure schematic diagram of a kind of air compressor and waste heat utilization device that the utility model proposes;

[0026] Figure 3 It is Figure 2 The enlarged structure schematic diagram of place A in the middle.

[0027] In the figure: 1, air compressor body; 2, oil return pipe; 3, water outlet pipe; 4, heat exchange box; 5, water inlet pipe; 6, oil inlet pipe; 7, flow-through hole; 8, flow guide bump; 9, flow guide plate; 10, connecting column; 11, liquid guide block; 12, heat exchange pipe; 13, heat conduction protrusion; 14, heat exchange branch pipe; 15, heat conduction bump; 16, flow distribution block; 17, heat conduction column. DETAILED DESCRIPTION

[0028] The technical solutions of the patent will be further described in detail below in combination with specific embodiments.

[0029] The embodiments of the patent will be described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the patent, and cannot be understood as a limitation on the patent.

[0030] REFERENCE Figures 1-3 A waste heat utilization device for air compressor, comprising an air compressor body 1 and a heat exchange box 4, the top of the heat exchange box 4 is provided with a water outlet pipe 3, the bottom of the heat exchange box 4 is provided with a water inlet pipe 5, the inner walls of the two sides of the heat exchange box 4 are fixedly connected with the same heat exchange pipe 12 through connecting columns 10, the oil outlet end of the air compressor body 1 is communicated with the bottom of the heat exchange pipe 12 through an oil inlet pipe 6, the oil inlet end of the air compressor body 1 is communicated with the top of the heat exchange pipe 12 through an oil return pipe 2, the inner walls of the four sides of the heat exchange pipe 12 are all provided with mounting holes, the inner walls of the mounting holes are provided with heat exchange branch pipes 14, the heat exchange branch pipes 14 are in circular arc structure, and the outer walls of the heat exchange branch pipes 14 are provided with a plurality of heat conduction protrusions 13 distributed at equal distances.

[0031] In the embodiment, the inner walls of the two sides of the heat exchange pipe 12 are both provided with flow guide bumps 8, the flow guide bumps 8 are in semicircular structure, the flow guide bumps 8 can conveniently guide the lubricating oil into the heat exchange branch pipes 14, and the heat exchange effect is improved; the inside of the heat exchange pipe 12 is provided with a flow distribution block 16, the cross section of the flow distribution block 16 is in isosceles triangle structure, the flow distribution block 16 can cooperate with the flow guide bumps 8 to guide the lubricating oil into the heat exchange branch pipes 14, and the convenience of the lubricating oil entering into the heat exchange branch pipes 14 is improved.

[0032] Further, the top inner wall and the bottom inner wall of the heat exchange pipe 12 are both provided with flow guide plates 9, the cross section of the flow guide plates 9 is in right triangle structure, the flow guide plates 9 can conveniently guide the lubricating oil to enter into and flow out of the heat exchange pipe 12, and the situation that the lubricating oil is accumulated in the corners of the heat exchange pipe 12 is avoided.

[0033] The inner wall of the heat exchange pipe 12 is provided with a fixing hole, the inner wall of the fixing hole is inserted with a heat conduction column 17, one end of the heat conduction column 17 is connected with a heat conduction bump 15, the heat conduction bump 15 can increase the contact area between the lubricating oil and the water in the heat exchange pipe 12, and the heat exchange effect is further improved.

[0034] The top and bottom corners of the heat exchange box 4 are provided with liquid guide blocks 11, the surface of the liquid guide block 11 is arc-shaped, the liquid guide block 11 can conveniently guide the flow of cold water in the heat exchange box 4, and the situation that the cold water is accumulated in the heat exchange box 4 is avoided.

[0035] It is worth mentioning that the surface of the connecting column 10 is provided with a flow hole 7, the cross section of the flow hole 7 is isosceles trapezoidal, the flow hole 7 can conveniently guide the flow of cold water in the heat exchange box 4, the connecting column 10 does not hinder the water flow, and the smoothness of the flow is improved.

[0036] Working principle: when in use, the lubricating oil in the air compressor body 1 enters the heat exchange pipe 12 from the oil inlet pipe 6, the cold water needing heat exchange enters the heat exchange box 4 from the water inlet pipe 5, when the cold water contacts the outer periphery of the heat exchange pipe 12 in the heat exchange box 4, the high-temperature lubricating oil in the heat exchange pipe 12 transmits heat to the cold water in the form of heat transfer, the heat exchange branch pipe 14 and the heat conduction bump 13 can increase the contact area of the lubricating oil and the cold water, and the heat transfer efficiency is improved, when the cold water is heated into warm water and is discharged through the water outlet pipe 3, the temperature of the water outlet pipe 3 can be used for people's daily bathing, and the waste of energy is avoided.

[0037] The above is only the preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A waste heat utilization device for air compressor, comprising an air compressor body (1) and a heat exchange box (4), the top of the heat exchange box (4) is provided with a water outlet pipe (3), the bottom of the heat exchange box (4) is provided with a water inlet pipe (5), the inner walls of the two sides of the heat exchange box (4) are fixedly connected with the same heat exchange pipe (12) through connecting columns (10), the oil outlet end of the air compressor body (1) is communicated with the bottom of the heat exchange pipe (12) through an oil inlet pipe (6), and the oil inlet end of the air compressor body (1) is communicated with the top of the heat exchange pipe (12) through an oil return pipe (2), characterized in that, The inner wall of the heat exchange pipe (12) is provided with mounting holes, the inner wall of the mounting hole is provided with a heat exchange branch pipe (14), the heat exchange branch pipe (14) is in a circular arc structure, and the outer wall of the heat exchange branch pipe (14) is provided with a plurality of heat conduction protrusions (13) distributed at equal distances.

2. The waste heat utilization device for an air compressor according to claim 1, characterized by The inner wall of the heat exchange pipe (12) is provided with flow guide blocks (8) on both sides, and the flow guide blocks (8) are in a semicircular structure.

3. The waste heat utilization device for an air compressor according to claim 2, characterized by The heat exchange pipe (12) is internally provided with a flow distribution block (16), and the cross section of the flow distribution block (16) is in an isosceles triangle structure.

4. The waste heat utilization device for an air compressor according to claim 2 or 3, characterized by The inner wall of the heat exchange pipe (12) is provided with flow guide plates (9) on the top and bottom, and the cross section of the flow guide plate (9) is in a right triangle structure.

5. The waste heat utilization device for an air compressor according to claim 4, characterized by The inner wall of the heat exchange pipe (12) is provided with fixing holes, the inner wall of the fixing hole is inserted with a heat conduction column (17), and one end of the heat conduction column (17) is connected with a heat conduction block (15).

6. The waste heat utilization device for an air compressor according to claim 5, characterized by The top and bottom corners of the heat exchange box (4) are provided with liquid guide blocks (11), and the surface of the liquid guide block (11) is in an arc structure.

7. The waste heat utilization device for an air compressor according to claim 6, characterized by The surface of the connecting column (10) is provided with flow holes (7), and the cross section of the flow hole (7) is in an isosceles trapezoidal structure.

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