Air compressor waste heat recovery device

Abstract

The utility model discloses an air compressor waste heat recovery device, including crankcase, the crankcase front end is provided with the drive motor, the upper end of crankcase is connected with the compression box, the upper end right side communication of compression box has the air inlet pipe, the upper end of air inlet pipe is connected with the air filter cartridge, the upper end left side communication of compression box has the air outlet pipe, the outside of compression box is connected with a plurality of water cooling fin, a plurality of water cooling fin outside sleeve joint has the air cooling cover, a plurality of water cooling fin left and right two ends all communicate with the distribution pipe, the utility model discloses through the synergies of water cooling fin and air cooling cover, carries out water cooling and air cooling heat exchange in compression box outside simultaneously, utilizes the high heat capacity characteristic of water cooling system to absorb most compression heat again through the air cooling system intensification heat dissipation efficiency, realizes the double recovery of waste heat, and the waste heat recovery efficiency is high. Cold water is heated after entering secondary heat exchange stage through water cooling fin, and the air of air cooling system heating can be directly used for workshop heating, forms energy cascade utilization.

Description

Technical Field

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

[0002] In the operation of traditional air compressors, the heat generated by compressed air is usually directly discharged into the environment through the cooling system, resulting in a large amount of energy waste. At the same time, long-term high-temperature operation of air compressors will lead to a shortened equipment life and increased maintenance costs.

[0003] Existing waste heat recovery technologies mostly employ a single cooling method, such as heat exchange through water cooling or air cooling alone. This results in limited recovery efficiency and makes it difficult to simultaneously achieve both compressed air cooling and efficient utilization of waste heat.

[0004] To address the aforementioned issues, this patent proposes an air compressor waste heat recovery device that integrates water cooling and air cooling for dual heat recovery, possesses secondary heat exchange capabilities, and enables cascaded heat energy recovery, thereby resolving the aforementioned technical problems. Utility Model Content

[0005] The main purpose of this invention is to propose a waste heat recovery device for air compressors, which aims to solve the problem that traditional waste heat recovery technologies for air compressors mostly use a single cooling method and have low recovery efficiency.

[0006] To address the aforementioned problems, this utility model proposes an air compressor waste heat recovery device, comprising a crankcase, a drive motor at the front end of the crankcase, a compression chamber connected to the upper end of the crankcase, an air inlet pipe connected to the upper right side of the compression chamber, an air filter cartridge connected to the upper end of the air inlet pipe, an air outlet pipe connected to the upper left side of the compression chamber, and multiple water-cooled fins connected to the outside of the compression chamber, with an air-cooled cover fitted over the multiple water-cooled fins.

[0007] Preferably, each of the multiple water-cooled fins has a distribution pipe connected to both its left and right ends, and the fins are interconnected through two distribution pipes.

[0008] Preferably, the right end of the distribution pipe on the right side is connected to a water inlet pipe, and the upper end of the distribution pipe on the left side is connected to a connecting pipe.

[0009] Preferably, the upper end of the connecting pipe is connected to a water-cooled box, and the water-cooled box is located on the upper side of the compression box.

[0010] Preferably, a drain pipe is connected to the upper right side of the water-cooled box, and a heat dissipation bend is provided inside the water-cooled box, which is connected to the upper end of the air outlet pipe.

[0011] Preferably, the left end of the air-cooled cover is connected to an air guide duct, and a fan and a dustproof net are installed inside the air guide duct.

[0012] Preferably, the right end of the air-cooled cover is connected to an air outlet pipe, and the water inlet pipe extends downward through the air outlet pipe.

[0013] Beneficial effects:

[0014] 1. This utility model utilizes the synergistic effect of water-cooled fins and an air-cooled shroud to simultaneously perform water-cooling and air-cooling heat exchange outside the compressor. It leverages the high heat capacity of the water-cooling system to absorb most of the compression heat, while the air-cooling system enhances heat dissipation efficiency, achieving dual recovery of waste heat with high efficiency. The cooled water, heated by the water-cooled fins, enters the secondary heat exchange stage, while the air heated by the air-cooling system can be directly used for workshop heating, forming a cascaded energy utilization system.

[0015] 2. The water-cooling system of this utility model uses a distribution pipe to evenly distribute cold water to each fin. After the initial heat exchange is completed, the hot water flows into the water-cooling box for secondary heat exchange with the high-temperature compressed air. The heat dissipation bend pipe introduces the high-temperature air from the outlet pipe into the water-cooling box, further heating the cold water and reducing the temperature of the compressed air, thereby improving the heat recovery rate while ensuring the subsequent storage stability of the compressed air.

[0016] 3. This utility model's air-cooled cover uses a fan inside the air duct to force in filtered cold air, which flows unidirectionally over the water-cooled fins and the surface of the compressor box, enhancing the convective heat transfer effect. A dust filter prevents impurities from accumulating and affecting heat dissipation, while the outlet duct directionally delivers heated air to the heating area, achieving efficient reuse of waste heat.

[0017] 4. The water inlet pipe of this utility model runs through the air outlet pipe, saving space. At the same time, it ensures that the water cooling and air cooling systems operate independently, which not only reduces the operating temperature of the air compressor, but also centrally stores the recovered heat in the water storage tank and heating system, directly connecting to the hot water supply and heating of the production workshop. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a three-dimensional structural diagram of the air compressor waste heat recovery device of this utility model;

[0020] Figure 2 This is a three-dimensional cross-sectional structural diagram of the waste heat recovery device for an air compressor according to this utility model;

[0021] Figure 3 This is a schematic diagram of the water-cooled fin connection structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the air-cooled cover connection structure of this utility model;

[0023] Figure 5 This is a schematic diagram of the water-cooled box connection structure of this utility model;

[0024] Figure 6 This is a schematic diagram of the air duct connection structure of this utility model.

[0025] The annotations in the attached figures are explained as follows:

[0026] 1. Crankcase; 2. Drive motor; 3. Compression chamber; 4. Intake pipe; 5. Air filter cartridge; 6. Exhaust pipe; 7. Water-cooled fins; 8. Distribution pipe; 9. Water inlet pipe; 10. Connecting pipe; 11. Water-cooled box; 12. Drain pipe; 13. Heat dissipation bend; 14. Air-cooled cover; 15. Air duct; 16. Exhaust pipe. Detailed Implementation

[0027] 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.

[0028] To achieve the above-mentioned utility model objectives, such as Figures 1-6As shown, this utility model provides a waste heat recovery device for an air compressor, including a crankcase 1, a drive motor 2 at the front end of the crankcase 1, a compression chamber 3 connected to the upper end of the crankcase 1, an intake pipe 4 connected to the upper right side of the compression chamber 3, an air filter cartridge 5 connected to the upper end of the intake pipe 4, an outlet pipe 6 connected to the upper left side of the compression chamber 3, and multiple water-cooled fins 7 connected to the outside of the compression chamber 3. An air-cooled cover 14 is fitted over the multiple water-cooled fins 7. During the waste heat recovery process of the air compressor, the air compressor, composed of the crankcase 1, drive motor 2, and compression chamber 3, draws in external air through the intake pipe 4 and discharges compressed air through the outlet pipe 6. The intake pipe 4 filters the drawn-in air through the air filter cartridge 5. The air is compressed inside the compression chamber 3, generating a large amount of heat. At this time, the waste heat is generated by the air compressor. Cold water flows inside multiple water-cooled fins 7 outside the compressor 3, and cold air flows inside the air-cooled cover 14 outside the multiple water-cooled fins 7. Therefore, the compressor 3 can be water-cooled by the multiple water-cooled fins 7 and air-cooled by the air-cooled cover 14, allowing the compressor 3 to exchange heat with the cold water and cold air, reducing the temperature of the compressor 3 and ensuring the stable operation of the air compressor. At the same time, the cold water and cold air can remove the heat from the compressor 3 through heat exchange, absorbing and storing the heat generated by the compressor 3, and using it for hot water supply and heating in the production workshop. This recovers and reuses the waste heat of the air compressor, which can not only convert the originally wasted heat into effective energy and improve the overall energy utilization efficiency, but also reduce the operating temperature of the air compressor, improve the operating condition of the air compressor, and extend its service life.

[0029] Preferably, both ends of the multiple water-cooled fins 7 are connected to distribution pipes 8, and the two distribution pipes 8 are interconnected. The right end of the right distribution pipe 8 is connected to a water inlet pipe 9, and the upper end of the left distribution pipe 8 is connected to a connecting pipe 10. The upper end of the connecting pipe 10 is connected to a water-cooled box 11, which is located above the compression chamber 3. The upper right side of the water-cooled box 11 is connected to a drain pipe 12. A heat dissipation bend 13 is provided inside the water-cooled box 11, and the heat dissipation bend 13 is connected to the upper end of the exhaust pipe 6. During the water cooling process of the compression chamber 3, cold water is introduced into the right distribution pipe 8 through the water inlet pipe 9, and the cold water is evenly distributed to the multiple water-cooled fins 7 through the right distribution pipe 8, allowing the cold water to flow outside the compression chamber 3 through the multiple water-cooled fins 7 and interact with the cooling system. The compressor 3 undergoes heat exchange, water cooling, and water heating. The water then flows into the distribution pipe 8 on the left and into the connecting pipe 10. From there, it flows into the water-cooled box 11. Since the compressed air is at a high temperature and is introduced into the heat dissipation bend 13 through the outlet pipe 6, it flows through the water-cooled box 11. Therefore, the compressed air can undergo another heat exchange with the water that has already undergone one heat exchange in the water-cooled box 11 through the heat dissipation bend 13, cooling the compressed air and reheating the water. Finally, the cooled compressed air is introduced into the air storage tank through the upper end of the heat dissipation bend 13 for storage, while the water that has been heated twice is introduced into the water storage tank through the drain pipe 12 for storage and is used for hot water supply in the production workshop.

[0030] Preferably, the left end of the air-cooled shroud 14 is connected to an air duct 15, and a fan and a dust filter are installed inside the air duct 15. The right end of the air-cooled shroud 14 is connected to an air outlet pipe 16, and the water inlet pipe 9 extends downward through the air outlet pipe 16. During the air-cooling process of the compressor 3, the air-cooled shroud 14 draws in external cold air through the fan inside the air duct 15, and the air flows to the right between the air-cooled shroud 14, the compressor 3, and the multiple water-cooled fins 7. The air duct 15 can filter the drawn-in air through the dust filter. The filter allows the compressor 3 and multiple water-cooled fins 7 to exchange heat with the cold air inside the air-cooled cover 14, thereby cooling the compressor 3 and heating the air. At the same time, it cools the multiple water-cooled fins 7, improving the cooling efficiency of the multiple water-cooled fins 7 on the compressor 3. The heated air is discharged through the air outlet duct 16 and directed to the production workshop for heating. In addition, the water inlet pipe 9 runs through the lower end of the air outlet duct 16 and is not connected to the air outlet duct 16, allowing the water inlet pipe 9 and the air outlet duct 16 to operate independently without interfering with each other.

[0031] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A waste heat recovery device for an air compressor, characterized in that, The system includes a crankcase (1), a drive motor (2) is provided at the front end of the crankcase (1), a compressor box (3) is connected to the upper end of the crankcase (1), an air intake pipe (4) is connected to the upper right side of the compressor box (3), an air filter cartridge (5) is connected to the upper end of the air intake pipe (4), an air outlet pipe (6) is connected to the upper left side of the compressor box (3), and multiple water-cooled fins (7) are connected to the outside of the compressor box (3), and an air-cooled cover (14) is fitted over the multiple water-cooled fins (7).

2. The air compressor waste heat recovery device as described in claim 1, characterized in that, Each of the multiple water-cooled fins (7) has a distribution pipe (8) connected to both its left and right ends, and the fins are interconnected through two distribution pipes (8).

3. The waste heat recovery device for an air compressor according to claim 2, wherein The right end of the distribution pipe (8) on the right side is connected to the water inlet pipe (9), and the upper end of the distribution pipe (8) on the left side is connected to the connecting pipe (10).

4. The air compressor waste heat recovery device of claim 3, wherein, The upper end of the connecting pipe (10) is connected to a water-cooled box (11), and the water-cooled box (11) is located on the upper side of the compression box (3).

5. A waste heat recovery device for an air compressor as defined in claim 4, wherein The upper right side of the water-cooled box (11) is connected to a drain pipe (12), and a heat dissipation bend pipe (13) is provided inside the water-cooled box (11), and the heat dissipation bend pipe (13) is connected to the upper end of the air outlet pipe (6).

6. The air compressor waste heat recovery device of claim 1, wherein, The left end of the air-cooled cover (14) is connected to an air guide tube (15), and a fan and a dustproof net are installed inside the air guide tube (15).

7. The air compressor waste heat recovery device as described in claim 6, characterized in that, The right end of the air-cooled cover (14) is connected to an air outlet pipe (16), and the water inlet pipe (9) extends downward through the air outlet pipe (16).

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