Multifunctional air compressor waste heat recovery device
By designing a multifunctional waste heat recovery device for air compressors, a circulating water pump system is used to recover the heat from the air compressors, solving the problem of unused heat from the air compressors, achieving effective recovery and reuse of waste heat, reducing costs and extending equipment life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- KLEISMAN (HANGZHOU) TECH CO LTD
- Filing Date
- 2025-06-12
- Publication Date
- 2026-05-19
AI Technical Summary
The heat generated during the operation of existing high-power air compressors cannot be effectively recovered and reused, resulting in resource waste.
A multifunctional waste heat recovery device for air compressors was designed. Coolant is transported to the heat-receiving pipe through a circulating water pump system to absorb the heat from the air compressor. Water vapor is generated by spraying the coolant onto the outer wall of the S-shaped pipe through nozzles, which condenses into water droplets and is collected, thus realizing the recovery and reuse of waste heat.
It effectively recovers waste heat from air compressors, reduces energy waste, lowers operating costs, and allows the recovered water vapor condensate to be used for other purposes, such as cleaning and irrigation, extending the service life of the equipment.
Smart Images

Figure CN224262280U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of air compressor technology, and in particular to a multifunctional waste heat recovery device for air compressors. Background Technology
[0002] An air compressor is a device used to compress gas. Air compressors are similar in structure to water pumps. Most air compressors are reciprocating piston type, with rotating vanes or rotating screws. The compressor is directly driven by an electric motor, which causes the crankshaft to rotate, driving the connecting rod to make the piston reciprocate, causing changes in cylinder volume. Due to the change in pressure inside the cylinder, air enters the cylinder through the air filter via the intake valve. During the compression stroke, due to the reduction in cylinder volume, the compressed air passes through the exhaust valve, exhaust pipe, and check valve into the air tank.
[0003] Currently, most high-power air compressors generate a significant amount of heat during operation. Failure to effectively recover and reuse this heat inevitably leads to resource waste. To address this, we have innovatively proposed a multi-functional waste heat recovery device for air compressors, significantly improving the heat recovery and utilization rate, thereby enhancing its environmental performance. Therefore, a multi-functional waste heat recovery device for air compressors is urgently needed to solve this problem. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a multifunctional waste heat recovery device for air compressors.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A multifunctional waste heat recovery device for air compressors includes a base, an air compressor housing mounted on one top end of the base, and a waste heat recovery box fixed to the other top end of the base. An air compressor is installed inside the bottom of the air compressor housing. A waste heat recovery mechanism is provided inside the top of the waste heat recovery box. The recovery mechanism includes a partition fixed to both sides of the inside of the waste heat recovery box. A trapezoidal water collection hood is fixed to the top of one end of the partition, and a U-shaped collection shell is fixed to the bottom of the trapezoidal water collection hood. The waste heat recovery... Both sides of one end of the heat recovery box are fixed with water outlet pipes. Several interconnected nozzles are connected to the side of the two water outlet pipes that are close to each other. Water pumps are installed at the bottom of both sides of one end of the waste heat recovery box. The outlet ends of the two water pumps are connected to interconnected delivery pipes. The other ends of the two delivery pipes are connected to one side of the two water outlet pipes respectively. The nozzles can cool the hot water inside the S-shaped pipe and generate water vapor, which then collects at the bottom of the trapezoidal water collection hood. After collection, the water vapor will condense into water droplets and fall into the U-shaped collection shell for collection.
[0007] Preferably, the inlet ends of the two water pumps are connected by a conduit, one end of the partition is provided with a liquid storage chamber, and the other ends of the two conduits are connected to the bottom of the liquid storage chamber.
[0008] Preferably, one side of the U-shaped collection shell is connected to a drain pipe, and the drain pipe passes through one side of the waste heat recovery box, and a solenoid valve is installed inside the drain pipe.
[0009] Preferably, a mesh plate is fixed to the bottom of one end of the partition, and the mesh plate is located above the liquid storage chamber. The top of the waste heat recovery box is connected to a water inlet. Both ends of the partition are connected to a through pipe, and a control valve is provided inside the through pipe.
[0010] Preferably, a circulation box is installed at one end of the top of the inner wall of the air compressor housing, a circulation pump is installed at the bottom of the circulation box, and the water inlet pipe of the circulation pump is connected to and communicates with the interior of the circulation box. The water outlet of the circulation pump is connected to a circulating pipe. A heating pipe is installed on the outer wall of the air compressor, and one end of the heating pipe is connected to and communicates with the other end of the circulation pipe.
[0011] Preferably, the other end of the heated pipe is connected to a connecting pipe, the other end of which passes through the top of the waste heat recovery box and through the inner top of the trapezoidal water collection hood, then passes through one end of the waste heat recovery box and connects with one end of the circulation box, and the connecting pipe at the bottom of one end of the waste heat recovery box is in the shape of an S-shaped through pipe.
[0012] Preferably, the base is equipped with casters at the four corners of its bottom.
[0013] The beneficial effects of this utility model are as follows:
[0014] 1. Due to the adoption of a recovery mechanism, when heated circulating water flows into the S-shaped pipe, the water pump draws out the coolant and delivers it to the outlet pipe. Then, the nozzles cool the outer wall of the S-shaped pipe, generating water vapor that collects on the inner wall of the trapezoidal water collection shroud. This water vapor then gradually condenses into water droplets that flow into the U-shaped collection shell, thus achieving the effect of recovering the waste heat generated by the air compressor, reducing energy waste, and lowering operating costs. The recovered water vapor condensate can be used for other purposes, such as cleaning and irrigation, further realizing resource recycling, reducing wear and tear on the equipment caused by overheating, and potentially extending the service life of the equipment. Attached Figure Description
[0015] Figure 1 This is a three-dimensional structural diagram of a multifunctional waste heat recovery device for an air compressor proposed in this utility model.
[0016] Figure 2This is a cross-sectional view of the waste heat recovery box of a multifunctional air compressor waste heat recovery device proposed in this utility model.
[0017] Figure 3 This is a partial structural diagram of the recovery mechanism of a multifunctional waste heat recovery device for air compressors proposed in this utility model.
[0018] Figure 4 This is a partial structural diagram of the air compressor housing of a multifunctional air compressor waste heat recovery device proposed in this utility model.
[0019] In the diagram: 1. Base; 101. Casters; 2. Air compressor housing; 201. Connecting pipe; 202. S-shaped through pipe; 203. Circulation pipe; 204. Circulation tank; 205. Circulation pump; 206. Air compressor; 207. Heating pipe; 3. Waste heat recovery tank; 301. Water inlet; 302. Through pipe; 303. Partition; 304. Liquid storage chamber; 305. Mesh plate; 4. Trapezoidal water collection cover; 401. U-shaped collection shell; 402. Drain pipe; 403. Solenoid valve; 5. Water outlet pipe; 501. Nozzle; 502. Delivery pipe; 503. Water pump; 504. Conduit. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0021] Reference Figure 1-4 A multifunctional waste heat recovery device for an air compressor includes a base 1, an air compressor housing 2 is installed at one top end of the base 1, and a waste heat recovery box 3 is fixed at the other top end of the base 1. An air compressor 206 is installed at the bottom inside the air compressor housing 2, and a waste heat recovery mechanism for recovering waste heat is provided at the top inside the waste heat recovery box 3.
[0022] The recovery mechanism includes a partition 303 fixed on both sides of the interior of the waste heat recovery box 3. A trapezoidal water collection cover 4 is fixed to the top of one end of the partition 303. The trapezoidal water collection cover 4 can collect water vapor. A U-shaped collection shell 401 is fixed to the bottom of the trapezoidal water collection cover 4. After collection, the water vapor will condense into water droplets and fall into the U-shaped collection shell 401 for collection. Water outlet pipes 5 are fixed on both sides of one end of the waste heat recovery box 3. Several interconnected nozzles 501 are connected to the side of the two water outlet pipes 5 that are close to each other. Water pumps 503 are installed at the bottom of both sides of one end of the waste heat recovery box 3. The water outlets of the two water pumps 503 are connected to interconnected delivery pipes 502. The other ends of the two delivery pipes 502 are connected to one side of the two water outlet pipes 5 respectively and are interconnected. The nozzles 501 can cool the hot water inside the S-shaped pipe 202 and generate water vapor, which is then collected at the bottom of the interior of the trapezoidal water collection cover 4.
[0023] In this utility model, the inlet ends of two water pumps 503 are connected to a conduit 504, and a liquid storage chamber 304 is provided at the bottom of one end of the partition 303, and the other ends of the two conduits 504 are connected to the bottom of the liquid storage chamber 304.
[0024] In this utility model, a drain pipe 402 is connected to one side of the U-shaped collection shell 401, and the drain pipe 402 passes through one side of the waste heat recovery box 3. A solenoid valve 403 is installed inside the drain pipe 402.
[0025] In this utility model, a mesh plate 305 is fixed at the bottom of one end of the partition 303, and the mesh plate 305 is located above the liquid storage chamber 304. The top of the waste heat recovery box 3 is connected to a water inlet 301. Both ends of the partition 303 are connected to a through pipe 302, and a control valve is provided in the through pipe 302.
[0026] In this utility model, a circulation box 204 is installed at one end of the top of the inner wall of the air compressor box 2, and a circulation pump 205 is installed at the bottom of the circulation box 204. The water inlet pipe of the circulation pump 205 is connected to and communicates with the interior of the circulation box 204, and the water outlet of the circulation pump 205 is connected to and communicates with the circulation pipe 203. A heating pipe 207 is installed on the outer wall of the air compressor 206, and one end of the heating pipe 207 is connected to and communicates with the other end of the circulation pipe 203.
[0027] In this utility model, the other end of the heating pipe 207 is connected to a connecting pipe 201. The other end of the connecting pipe 201 passes through the top of the waste heat recovery box 3 and through the inner top of the trapezoidal water collection cover 4. Then it passes through one end of the waste heat recovery box 3 and connects with one end of the circulation box 204. The connecting pipe 201 is located at the bottom of one end of the waste heat recovery box 3 and is in the shape of an S-shaped through pipe 202.
[0028] In this utility model, universal wheels 101 are installed at the four corners of the bottom of the base 1.
[0029] Working Principle: During operation, when the air compressor 206 is running, it generates a large amount of heat. At this time, the circulating pump 205 draws out circulating water and delivers it to the circulating pipe 203, and then to the interior of the heated pipe 207. The heated pipe 207 absorbs the heat generated by the air compressor 206, heating the water inside. Coolant is then injected into the end of the baffle 303 away from the trapezoidal water collection shroud 4 through the water inlet 301. Then, by opening the control valve in the through pipe 302, a portion of the coolant is delivered to the interior of the storage chamber 304. The heated pipe 207 continues to deliver water to the connecting pipe 201. When the circulating water reaches the S-shaped through pipe 202, the water pump 503 is activated. The water pump 503 draws out the coolant from the storage chamber 304 through the conduit 504 and delivers it to the delivery pipe 502. Then it enters the interior of the outlet pipe 5 and is sprayed out from the nozzle 501. At this time, the sprayed coolant will come into contact with the outer wall of the S-shaped pipe 202. The S-shaped pipe 202 is cooled and will generate water vapor. The water vapor will gather at the top and adhere to the inside of the trapezoidal water collection shroud 4. Since the inner wall of the trapezoidal water collection shroud 4 is trapezoidal and inclined, the water vapor will gradually condense into water droplets and slide along the inner wall of the trapezoidal water collection shroud 4 into the inside of the U-shaped collection shell 401 for collection. The water is connected to the drain pipe 402 through the external water pipe and the solenoid valve 403 is opened to drain the water inside the U-shaped collection shell 401 for collection and reuse in other places, thereby realizing the effect of recovering the waste heat of the air compressor 206. Then the cooled circulating water will flow back into the interior of the circulation box 204 through the connecting pipe 201.
[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A multifunctional waste heat recovery device for an air compressor, comprising a base (1), characterized in that, An air compressor housing (2) is installed at one top end of the base (1), and a waste heat recovery box (3) is fixed at the other top end of the base (1). An air compressor (206) is installed at the bottom inside the air compressor housing (2), and a waste heat recovery mechanism for recovering waste heat is provided at the top inside the waste heat recovery box (3). The recovery mechanism includes a partition (303) fixed on both sides of the interior of the waste heat recovery box (3). A trapezoidal water collection cover (4) is fixed to the top of one end of the partition (303), and a U-shaped collection shell (401) is fixed to the bottom of the trapezoidal water collection cover (4). Water outlet pipes (5) are fixed to both sides of one end of the waste heat recovery box (3). Several interconnected nozzles (501) are connected to the side of the two water outlet pipes (5) that are close to each other. Water pumps (503) are installed at the bottom of both sides of one end of the waste heat recovery box (3). The water outlets of the two water pumps (503) are connected to interconnected conveying pipes (502). The other ends of the two conveying pipes (502) are respectively connected to one side of the two water outlet pipes (5) and communicate with each other.
2. The multifunctional air compressor waste heat recovery device according to claim 1, characterized in that, The inlet ends of the two water pumps (503) are connected to a conduit (504). One end of the partition (303) is provided with a liquid storage chamber (304), and the other end of the two conduits (504) is connected to the bottom of the liquid storage chamber (304).
3. The multifunctional air compressor waste heat recovery device according to claim 1, characterized in that, One side of the U-shaped collection shell (401) is connected to a drain pipe (402), and the drain pipe (402) passes through one side of the waste heat recovery box (3). A solenoid valve (403) is installed inside the drain pipe (402).
4. The multifunctional air compressor waste heat recovery device according to claim 1, characterized in that, A mesh plate (305) is fixed at the bottom of one end of the partition (303), and the mesh plate (305) is located above the liquid storage chamber (304). The top of the waste heat recovery box (3) is connected to a water inlet (301). Both ends of the partition (303) are connected to a through pipe (302), and a control valve is provided in the through pipe (302).
5. The multifunctional air compressor waste heat recovery device according to claim 1, characterized in that, A circulation box (204) is installed at one end of the top of the inner wall of the air compressor housing (2). A circulation pump (205) is installed at the bottom of the circulation box (204). The water inlet pipe of the circulation pump (205) is connected to and communicates with the interior of the circulation box (204). The water outlet of the circulation pump (205) is connected to a circulating pipe (203). A heating pipe (207) is installed on the outer wall of the air compressor (206). One end of the heating pipe (207) is connected to and communicates with the other end of the circulating pipe (203).
6. The multifunctional air compressor waste heat recovery device according to claim 5, characterized in that, The other end of the heating pipe (207) is connected to a connecting pipe (201). The other end of the connecting pipe (201) passes through the top of the waste heat recovery box (3) and through the top of the trapezoidal water collection cover (4). Then it passes through one end of the waste heat recovery box (3) and connects with one end of the circulation box (204). The connecting pipe (201) is located at the bottom of one end of the waste heat recovery box (3) and is in the shape of an S-shaped through pipe (202).
7. The multifunctional air compressor waste heat recovery device according to claim 1, characterized in that, The base (1) is equipped with casters (101) at the four corners of its bottom.