A waste heat recovery device for a compressor

Abstract

The utility model relates to compressor waste heat recovery technical field discloses a kind of waste heat recovery devices for compressor, including base, the upper surface of the base is fixedly connected with compressor body, the inside of the compressor body is provided with exhaust pipe, the upper surface of the base is fixedly connected with heat preservation box, the upper surface of the heat preservation box is provided with recovery tank, the inside of the recovery tank is provided with air inlet pipe and exhaust cover, the inside of the recovery tank is provided with feed pipe and discharge pipe, the inside of the recovery tank is fixedly connected with gas delivery pipe, the inside of the gas delivery pipe is provided with spiral pipe, the inside of the recovery tank can be detachably mounted fan.The utility model is in, by the cooperation between recovery tank, air inlet pipe, exhaust cover, feed pipe, discharge pipe, gas delivery pipe, spiral pipe, heat preservation box and control component, the flow of internal heat transfer medium is adjusted following the heat conversion situation inside recovery tank, simultaneously using fan, gas is guided.

Description

Technical Field

[0001] This utility model relates to the field of compressor waste heat recovery technology, and in particular to a waste heat recovery device for compressors. Background Technology

[0002] With increasingly stringent requirements for energy conservation and emission reduction in industry, the waste heat resources carried by the high-temperature exhaust gas generated during compressor operation are receiving more and more attention. In traditional compressor systems, most of the exhaust waste heat is directly dissipated into the environment through the cooling system, failing to be fully utilized, resulting in energy waste and increased operating costs. Currently, various waste heat recovery technologies exist both domestically and internationally, such as heat exchangers and heat pumps, but they generally suffer from low efficiency and high costs. Therefore, a waste heat recovery device is needed.

[0003] A search revealed Chinese Patent Publication No. CN219474351U, which discloses an air compressor waste heat recovery device. The device includes a housing. A heat exchange tube is fixedly installed on the lower part of one side of the housing. An air inlet rod is fixedly installed on the upper inner wall of the housing on the side away from the heat exchange tube. One end of the heat exchange tube is fixedly connected to the lower part of the side adjacent to the air inlet rod. A second heat exchange tube is fixedly installed on the upper part of the side of the air inlet rod near the heat exchange tube. The other end of the second heat exchange tube extends outside the housing. A connecting rod is fixedly installed in the middle of the side of the air inlet rod near the heat exchange tube. A second connecting rod is fixedly installed in the middle of the side of the air inlet rod away from the connecting rod. The other end of the second connecting rod extends outside the housing. An exhaust pipe is fixedly installed at the bottom end of the second connecting rod outside the housing. This invention allows for adjustment of the length of the heat exchange pipes according to actual conditions, thereby effectively improving the utilization rate of waste heat recovery from the air compressor.

[0004] In actual use, the connection relationship between the air inlet rod, connecting rod one and connecting rod two is relatively complex. Furthermore, heat exchange tube one and heat exchange tube two are S-shaped and arranged in opposite directions. The gas only flows freely without any guidance for the gas. This can easily lead to the formation of stagnant or short-circuit backflow areas in the gas chamber, thereby affecting the heat exchange efficiency. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a waste heat recovery device for compressors, which aims to improve the problem that relying solely on the free flow of gas without guiding the gas can easily lead to stagnation or short-circuit backflow areas in the casing, thereby affecting heat exchange efficiency.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a waste heat recovery device for a compressor, comprising a base, a compressor body fixedly connected to the upper surface of the base, an exhaust pipe disposed inside the compressor body, an insulation box fixedly connected to the upper surface of the base, a recovery tank disposed on the upper surface of the insulation box, an inlet pipe and an exhaust hood disposed inside the recovery tank, the outer wall of the inlet pipe being disposed on the outer wall of the exhaust pipe, a feed pipe and a discharge pipe disposed inside the recovery tank, the outer wall of the discharge pipe being disposed inside the insulation box, a gas delivery pipe fixedly connected to the inside of the recovery tank, a spiral tube disposed inside the gas delivery pipe, a fan detachably mounted inside the recovery tank, and a control component disposed inside the feed pipe.

[0007] The above technical solution involves installing a control valve inside the exhaust pipe to control the discharge of hot gas from the compressor body. After connecting the exhaust pipe to the intake pipe, the valve is opened to allow gas to enter the recovery tank. Inside the recovery tank, multiple gas delivery pipes are arranged in a ring to facilitate gas entry into the gas delivery pipes and spiral tubes. Under the action of a fan, the gas moves from left to right inside the gas delivery pipes and spiral tubes. A heat exchange medium is installed inside the recovery tank to absorb the heat transferred from the gas delivery pipes and spiral tubes. Under the action of the discharge pipe, the heat-exchanged medium enters the insulation box, thereby recovering and reusing the hot gas discharged from the compressor body.

[0008] As a further description of the above technical solution: The control assembly includes a controller, a thermometer, and a solenoid valve. The outer walls of the controller, thermometer, and solenoid valve are all disposed inside the feed pipe. The controller and thermometer are electrically connected, and the controller and solenoid valve are electrically connected.

[0009] The above technical solution involves electrically connecting the controller with a thermometer and a solenoid valve. The controller detects the temperature of the heat exchange medium entering the feed pipe and the heat recovery structure of the device via the thermometer, thereby controlling the opening and closing of the solenoid valve and controlling the flow rate of the heat exchange medium entering the feed pipe.

[0010] As a further description of the above technical solution: A sealing seat is fixedly connected inside the exhaust hood, and the outer wall of the sealing seat is set inside the recycling tank.

[0011] The above technical solution involves an exhaust hood consisting of an exhaust pipe and a circular cover, which, through the action of a sealing seat, maintains the airtightness of the exhaust hood after installation.

[0012] As a further description of the above technical solution: A hollow block is fixedly connected to the outer wall of the recycling tank, and a U-shaped block is slidably connected to the outer wall of the hollow block. The outer wall of the U-shaped block is fixedly connected to the outer wall of the exhaust hood.

[0013] The above technical solution involves setting the outer wall of the hollow block to be arc-shaped, matching the arc of the outer wall of the recovery tank, so as not to hinder the movement of the exhaust hood during installation. Furthermore, hollow blocks and U-shaped blocks are provided on both the upper and lower sides of the recovery tank and the exhaust hood, which helps to improve the stability of the exhaust hood installation.

[0014] As a further description of the above technical solution: A push rod is slidably connected inside the hollow block, and a connecting plate is fixedly connected to the outer wall of the push rod. The outer wall of the connecting plate is slidably connected to the inner wall of the hollow block.

[0015] The above technical solution enables transmission of the connecting plate when the push rod is pushed or pulled. The outer wall of the connecting plate is attached to the inner wall of the hollow block, thereby limiting the movement of the connecting plate.

[0016] As a further description of the above technical solution: A tension spring is fixedly connected to the outer wall of the connecting plate, and the outer wall of the tension spring is fixedly connected to the inner wall of the hollow block.

[0017] The above technical solution involves moving the connecting plate to compress or release the tension spring. After compressing the tension spring, the connecting plate is no longer controlled, and the elasticity of the tension spring itself is used to reset the movement of the connecting plate.

[0018] As a further description of the above technical solution: A transmission frame is fixedly connected to the outer wall of the connecting plate, and a slide rod is slidably connected to the outer wall of the transmission frame.

[0019] The above technical solution involves moving the connecting plate to drive the transmission frame, and the outer wall of the transmission frame cooperates with the outer wall of the slide rod to facilitate the transmission of the slide rod by the transmission frame.

[0020] As a further description of the above technical solution: The outer wall of the slide rod penetrates the interior of the hollow block and is slidably connected to the interior of the U-shaped block. A telescopic rod is provided between the two slide rods.

[0021] The above technical solution involves moving a sliding rod inside the hollow block, allowing it to slide in and out of the U-shaped block, thereby limiting or releasing the U-shaped block.

[0022] This utility model has the following beneficial effects: 1. In this utility model, through the cooperation between the recovery tank, air inlet pipe, exhaust hood, feed pipe, discharge pipe, gas delivery pipe, spiral pipe, insulation box and control components, the flow rate of the internal heat transfer medium is adjusted according to the heat conversion situation inside the recovery tank, thereby achieving precise recovery of exhaust waste heat. At the same time, the fan is used to guide the gas, forcibly accelerate the flow of hot gas, and improve the heat exchange efficiency.

[0023] 2. In this utility model, the exhaust hood is quickly installed and disassembled through the cooperation between the hollow block, U-shaped block, push rod, connecting plate, tension spring, transmission frame, slide rod and telescopic rod, which facilitates the maintenance and cleaning of the internal components of the recycling tank and the exhaust hood. At the same time, the sealing seat ensures the sealing of the connection between the exhaust hood and the recycling tank. Attached Figure Description

[0024] Figure 1 This is a perspective view of a waste heat recovery device for a compressor according to the present invention; Figure 2 This is a cross-sectional schematic diagram of the internal structure of the recovery tank of a waste heat recovery device for a compressor proposed in this utility model; Figure 3 This is a partial structural diagram of the sealing seat of a waste heat recovery device for a compressor proposed in this utility model; Figure 4 This is a cross-sectional schematic diagram of the internal structure of a hollow block in a waste heat recovery device for a compressor, as proposed in this utility model.

[0025] Legend: 1. Base; 2. Compressor body; 3. Exhaust pipe; 4. Insulation box; 5. Recovery tank; 6. Inlet pipe; 7. Exhaust hood; 8. Feed pipe; 9. Control components; 901. Controller; 902. Thermometer; 903. Solenoid valve; 10. Discharge pipe; 11. Gas delivery pipe; 12. Spiral tube; 13. Fan; 14. Sealing seat; 15. Hollow block; 16. U-shaped block; 17. Push rod; 18. Connecting plate; 19. Tension spring; 20. Transmission frame; 21. Slide rod; 22. Telescopic rod. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Reference Figure 1 and Figure 2An embodiment of this utility model provides a waste heat recovery device for a compressor, including a base 1, a compressor body 2 fixedly connected to the upper surface of the base 1, an exhaust pipe 3 provided inside the compressor body 2, an insulation box 4 fixedly connected to the upper surface of the base 1, a recovery tank 5 provided on the upper surface of the insulation box 4, an air inlet pipe 6 and an exhaust hood 7 provided inside the recovery tank 5, the outer wall of the air inlet pipe 6 being disposed on the outer wall of the exhaust pipe 3, a feed pipe 8 and a discharge pipe 10 provided inside the recovery tank 5, the outer wall of the discharge pipe 10 being disposed inside the insulation box 4, a gas transmission pipe 11 fixedly connected inside the recovery tank 5, a spiral pipe 12 provided inside the gas transmission pipe 11, a fan 13 that can be installed and removed inside the recovery tank 5, and a control component 9 provided inside the feed pipe 8. Specifically, flanges are installed on the outer walls of both the exhaust pipe 3 and the inlet pipe 6 to secure their connection. Multiple gas delivery pipes 11 are installed inside the recovery tank 5, with discs at both ends of each pipe. These discs are integrated with the recovery tank 5, creating a sealed space between the discs and the gas delivery pipes 11. This allows the heat transfer medium to enter the recovery tank 5 through the feed pipe 8 and finally exit through the discharge pipe 10 into the insulation box 4. The gas delivery pipes 11 are connected to the spiral pipe 12, allowing the gas to enter the tank. The gas inside the 11 moves directly from left to right. Under the action of the spiral tube 12 and the fan 13, the phenomenon of gas backflow is reduced. The gas passing through the gas pipe 11 and the spiral tube 12 increases the contact area between the heat transferred by the gas and the heat transfer medium, thereby improving the heat recovery efficiency. The recovered heat is temporarily stored or connected to other equipment for use through the pipes installed inside the insulation box 4. The recovered heat is connected to the circulation pump through the pipes installed on the lower side of the recovery tank 5, so that part of the heat transfer medium can be circulated.

[0028] Reference Figure 2 The control component 9 includes a controller 901, a thermometer 902, and a solenoid valve 903. The outer walls of the controller 901, the thermometer 902, and the solenoid valve 903 are all disposed inside the feed pipe 8. The controller 901 and the thermometer 902 are electrically connected, and the controller 901 and the solenoid valve 903 are electrically connected. Specifically, the thermometer 902 at the feed pipe 8 is connected to the input terminal of the controller 901 to facilitate the detection of the temperature at the bottom of the feed pipe 8. The solenoid valve 903 at the feed pipe 8 is connected to the output terminal of the controller 901 to facilitate the controller 901 to adjust the opening and closing of the solenoid valve 903 at the feed pipe 8 in real time according to the temperature detected by the thermometer 902, thereby regulating the flow rate of the heat transfer medium entering the feed pipe 8.

[0029] Reference Figure 3A sealing seat 14 is fixedly connected inside the exhaust hood 7, and the outer wall of the sealing seat 14 is set inside the recycling tank 5; a hollow block 15 is fixedly connected to the outer wall of the recycling tank 5, and a U-shaped block 16 is slidably connected to the outer wall of the hollow block 15, and the outer wall of the U-shaped block 16 is fixedly connected to the outer wall of the exhaust hood 7. Specifically, the sealing seat 14 consists of an annular gasket and a sealing ring, and is fixed to the outer wall of the exhaust hood 7. When the exhaust hood 7 is installed in the recycling tank 5, it facilitates the improvement of the seal between the exhaust hood 7 and the recycling tank 5. Furthermore, the exhaust hood 7 is equipped with a control valve inside, which helps to reduce dust from entering the interior of the recycling tank 5 from the connection between the recycling tank 5 and the exhaust hood 7.

[0030] Reference Figure 4 A push rod 17 is slidably connected inside the hollow block 15. A connecting plate 18 is fixedly connected to the outer wall of the push rod 17. The outer wall of the connecting plate 18 is slidably connected to the inner wall of the hollow block 15. A tension spring 19 is fixedly connected to the outer wall of the connecting plate 18. The outer wall of the tension spring 19 is fixedly connected to the inner wall of the hollow block 15. A transmission frame 20 is fixedly connected to the outer wall of the connecting plate 18. A slide rod 21 is slidably connected to the outer wall of the transmission frame 20. The outer wall of the slide rod 21 penetrates the interior of the hollow block 15 and is slidably connected to the interior of the U-shaped block 16. A telescopic rod 22 is provided between the two slide rods 21. Specifically, the movement of the push rod 17 is offset and limited by the interior of the hollow block 15. When the exhaust hood 7 is moved, the transmission frame 20 is driven by the connecting plate 18. The transmission frame 20 is composed of an inclined plate and a square plate. The outer wall of the telescopic rod 22 is provided with two short rods, and the inclined plate is stuck between the two short rods to facilitate the movement of the slide rod 21. The telescopic rod 22 is fixed between the slide rods 21 on the front and rear sides to limit the range of movement of the slide rod 21. The movement of the slide rod 21 is offset and limited by the interior of the hollow block 15. The fixed transmission frame 20 wraps around the slide rod 21 to facilitate the support of the slide rod 21. The U-shaped block 16 is positioned by the outer wall of the hollow block 15.

[0031] Working principle: When using this device, by opening the control valve inside the exhaust pipe 3, and using the flange fixing between the exhaust pipe 3 and the inlet pipe 6, hot air enters the interior of the recovery tank 5. Simultaneously, the fan 13 inside the recovery tank 5 is started, and the control valve inside the exhaust hood 7 is opened, drawing the hot air from the left side of the recovery tank 5 to the right side. The hot air then flows into the gas delivery pipe 11, where it moves spirally to the right under the action of the spiral tube 12. During this gas movement, thermometers 902 and solenoid valves 903 are installed inside both the feed pipe 8 and the discharge pipe 10, and are controlled by a controller 901. The controller 901 controls the flow rate at the feed pipe 8. Solenoid valve 903 allows heat exchange medium to enter the interior of recovery tank 5. Under the action of the disc inside recovery tank 5, the heat exchange medium is located in the middle of recovery tank 5. In the space formed by the discs on both sides and the gas delivery pipe 11, the heat exchange medium attracts the heat from the gas delivery pipe 11 and the spiral pipe 12. The temperature of the heat exchange medium entering the heat preservation box 4 is detected by thermometer 902 at the discharge pipe 10. Then, controller 901 controls the flow rate of the subsequent heat exchange medium entering the recovery tank 5 from the feed pipe 8, thereby optimizing the heat transfer efficiency. The heat of the gas discharged from the compressor body 2 is recovered and utilized through the heat preservation box 4, and finally the gas that has absorbed the heat is discharged in the exhaust hood 7. By pressing the push rod 17, the connecting plate 18 and the transmission frame 20 are moved to the right, stretching the tension spring 19. Using the inclined surface of the transmission frame 20, the slide rod 21 is pushed to move. Under the limitation inside the hollow block 15, the slide rods 21 on both the front and rear sides move towards the center of the telescopic rod 22, thereby squeezing the telescopic rod 22. The slide rod 21 slides out of the interior of the U-shaped block 16 and into the interior of the hollow block 15, no longer limiting the U-shaped block 16, making it convenient to remove the U-shaped block 16 and the exhaust hood 7. During use, this device not only attracts the flow of hot air and increases the heat exchange efficiency through the gas pipe 11 and the spiral pipe 12, but also enables the installation and disassembly of the exhaust hood 7, facilitating the maintenance of the internal components of the recovery tank 5.

[0032] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A waste heat recovery device for a compressor, comprising a base (1), characterized in that: The upper surface of the base (1) is fixedly connected to the compressor body (2), the compressor body (2) is provided with an exhaust pipe (3), the upper surface of the base (1) is fixedly connected to the heat preservation box (4), the upper surface of the heat preservation box (4) is provided with a recycling tank (5), the inside of the recycling tank (5) is provided with an air inlet pipe (6) and an exhaust hood (7), the outer wall of the air inlet pipe (6) is provided on the outer wall of the exhaust pipe (3), the inside of the recycling tank (5) is provided with a feed pipe (8) and a discharge pipe (10), the outer wall of the discharge pipe (10) is provided inside the heat preservation box (4), the inside of the recycling tank (5) is fixedly connected to a gas transmission pipe (11), the inside of the gas transmission pipe (11) is provided with a spiral pipe (12), the inside of the recycling tank (5) is detachably equipped with a fan (13), and the inside of the feed pipe (8) is provided with a control component (9).

2. The waste heat recovery device for a compressor according to claim 1, characterized in that: The control component (9) includes a controller (901), a thermometer (902), and a solenoid valve (903). The outer walls of the controller (901), the thermometer (902), and the solenoid valve (903) are all disposed inside the feed pipe (8). The controller (901) and the thermometer (902) are electrically connected, and the controller (901) and the solenoid valve (903) are electrically connected.

3. The waste heat recovery device for a compressor according to claim 1, characterized in that: The exhaust hood (7) is fixedly connected to a sealing seat (14), and the outer wall of the sealing seat (14) is set inside the recycling tank (5).

4. The waste heat recovery device for a compressor according to claim 1, characterized in that: A hollow block (15) is fixedly connected to the outer wall of the recycling tank (5), and a U-shaped block (16) is slidably connected to the outer wall of the hollow block (15). The outer wall of the U-shaped block (16) is fixedly connected to the outer wall of the exhaust hood (7).

5. A waste heat recovery device for a compressor according to claim 4, characterized in that: The hollow block (15) is slidably connected to a push rod (17), and a connecting plate (18) is fixedly connected to the outer wall of the push rod (17). The outer wall of the connecting plate (18) is slidably connected to the inner wall of the hollow block (15).

6. A waste heat recovery device for a compressor according to claim 5, characterized in that: A tension spring (19) is fixedly connected to the outer wall of the connecting plate (18), and the outer wall of the tension spring (19) is fixedly connected to the inner wall of the hollow block (15).

7. A waste heat recovery device for a compressor according to claim 5, characterized in that: The outer wall of the connecting plate (18) is fixedly connected to the transmission frame (20), and the outer wall of the transmission frame (20) is slidably connected to the slide rod (21).

8. A waste heat recovery device for a compressor according to claim 7, characterized in that: The outer wall of the slide rod (21) penetrates the interior of the hollow block (15) and is slidably connected to the interior of the U-shaped block (16). A telescopic rod (22) is provided between the two slide rods (21).

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