A compressed air energy saving device

By designing a regenerating tank inner tank and pusher plate structure in the air compressor, the heat of compressed air is recovered and utilized, solving the problem of heat waste in the air compressor and achieving energy saving and efficiency improvement.

CN224339140UActive Publication Date: 2026-06-09ZHEJIANG JIABAO ENERGY SAVING TECH

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG JIABAO ENERGY SAVING TECH
Filing Date
2025-06-06
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

The heat generated during the air compression process by existing air compressors is not effectively recovered and utilized, resulting in resource waste.

Method used

A compressed air energy-saving device was designed. By setting an inner tank and a pusher plate structure in the regenerating tank, clean water comes into contact with compressed air. The reciprocating motion of the pusher plate is used to transfer heat from the compressed air to the water, thereby heating the clean water for recycling.

Benefits of technology

It achieves full recovery and utilization of the heat from compressed air, which can be used for boiler water replenishment or preheating, thus achieving energy saving and efficiency improvement.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a compressed air energy-saving device, including an air outlet pipe connected to the compressor body, the other end of which is connected to a regenerating tank. The regenerating tank contains inner tanks with openings at both ends. The air outlet pipe passes through the regenerating tank and extends into the inner tank. An exhaust pipe, connecting to the air outlet pipe and extending to the outside of the regenerating tank, is provided on the inner tank. Push plates are respectively provided at the upper and lower ends of the inner tank, and water inlets are provided on the push plates, connecting to the inner tank. Through holes are provided at intervals on the outer periphery of the inner tank. A suitable amount of clean water is injected into the regenerating tank. The push plates at the upper and lower ends of the inner tank slide back and forth, driving the clean water to flow into the inner tank through the water inlets. After flowing through the air outlet pipe, the water flows outward through the through holes to the space between the regenerating tank and the inner tank, allowing the clean water to fully contact the air outlet pipe and absorb heat from the compressed air in the air outlet pipe. This heat can then be used to heat the clean water, ensuring more efficient heat recovery and utilization.
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Description

Technical Field

[0001] This utility model relates to the field of air compressor technology, and in particular to an energy-saving compressed air device. Background Technology

[0002] An air compressor is a device that converts mechanical energy into gas pressure energy, increasing the pressure of compressed air to drive tools, pneumatic equipment, or industrial processes. Air compressors are similar in construction to water pumps; most are reciprocating piston, rotary vane, or rotary screw compressors. During the air compression process, air compressors generate a significant amount of heat. Some of this heat is directly dissipated through the outdoor unit, while some is gradually dissipated into the external atmosphere as the compressed air is used. Currently, this heat is not effectively recovered and utilized, resulting in resource waste. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a compressed air energy-saving device.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] An energy-saving compressed air device includes an air outlet pipe connected to the compressor body, the other end of the air outlet pipe being connected to a regenerating tank, an inner tank with openings at both the top and bottom of the regenerating tank being spaced apart, the air outlet pipe penetrating the regenerating tank and extending into the inner tank, an exhaust pipe connected to the air outlet pipe and extending to the outside of the regenerating tank being provided on the inner tank, push plates being provided at the top and bottom of the inner tank respectively, water inlet holes communicating with the inner tank being provided on the push plates, and through holes being spaced apart on the outer periphery of the inner tank.

[0006] Preferably, the push plate is rotatably provided with a stop plate corresponding to the position of the water inlet hole, and the stop plates on the upper and lower push plates are disposed opposite each other on the inner side of the inner tank.

[0007] Preferably, the regenerating tank is provided with a push rod that connects to a push plate, and the push rod drives the push plate to slide up and down along the inner wall of the inner tank.

[0008] Preferably, the regenerating tank is equipped with a cylinder, and the output end of the cylinder is connected to a push rod.

[0009] Preferably, the inner tank is provided with limiting rings at the upper and lower ends, and the push plate abuts against the limiting rings and is located inside the inner tank.

[0010] Preferably, the inner tank is provided with a spiral tube, the through hole is provided with the outer side of the spiral tube, one end of the spiral tube is connected to the air outlet pipe, and the other end of the spiral tube is connected to the exhaust pipe.

[0011] Preferably, the inner tank is provided with a connecting plate extending outward to the inner wall of the regenerating tank, and the connecting plate is flush with the upper end of the inner tank.

[0012] Preferably, the upper end of the regenerating tank is provided with a water supply pipe for conveying cold water, and the lower end of the regenerating tank is connected to a drain pipe.

[0013] The beneficial effects of this utility model are:

[0014] A suitable amount of clean water is injected into the regenerating tank. The air outlet pipe of the compressor body, which is used to deliver compressed air, is connected to the inner tank of the regenerating tank. The push plates at the upper and lower ends of the inner tank slide back and forth to drive the clean water into the inner tank through the water inlet. After flowing through the air outlet pipe, it flows outward through the through hole to the space between the regenerating tank and the inner tank, so that the clean water can fully contact the air outlet pipe and absorb the heat from the compressed air in the air outlet pipe. Thus, the heat can be used to heat the clean water, so that the heat can be fully recovered and utilized. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a cross-sectional view of the present invention;

[0017] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0018] Figure 4 This is a schematic diagram of the internal structure of the present invention;

[0019] Figure 5 This is a schematic diagram of the push plate of this utility model;

[0020] Figure 6 for Figure 5 Enlarged diagram of point B in the middle.

[0021] In the diagram: compressor body 1, outlet pipe 2, regenerator tank 3, inner tank 31, through hole 311, spiral pipe 32, exhaust pipe 33, connecting plate 34, limit ring 35, water supply pipe 36, drain pipe 37, push plate 4, water inlet hole 41, backing plate 42, push rod 43, cylinder 44. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0023] In the description of this specification, the terms "upper", "lower", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or unit referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] like Figures 1-6 As shown, a compressed air energy-saving device includes an air outlet pipe 2 connected to a compressor body 1. The air outlet pipe 2 is used to transport compressed air. The other end of the air outlet pipe 2 is connected to a regenerating tank 3. The regenerating tank 3 is provided with an inner tank 31 with openings at both the top and bottom. The air outlet pipe 2 passes through the regenerating tank 3 and extends into the inner tank 31. The inner tank 31 is provided with an exhaust pipe 33 that connects to the air outlet pipe 2 and extends to the outside of the regenerating tank 3. The exhaust pipe 33 continues to transport compressed air outward.

[0025] The upper end of the regenerating tank 3 is equipped with a water supply pipe 36 for conveying cold water. A suitable amount of clean water is injected into the regenerating tank 3 through the water supply pipe 36. The air outlet pipe 2 exchanges heat with the clean water in the regenerating tank 3. The lower end of the regenerating tank 3 is connected to a drain pipe 37 to convey heated clean water to the outside. Specifically, the clean water contacts the air outlet pipe 2 to absorb the heat in the compressed air in the air outlet pipe 2. The heat can then be used to heat the clean water, which can be used for boiler feedwater, preheating, etc., so that the heat can be fully recovered and utilized, thereby achieving the effects of energy saving and efficiency improvement.

[0026] In order to improve the heat exchange efficiency of compressed air and make the heat more fully recovered and utilized, the upper and lower ends of the inner tank 31 are respectively provided with push plates 4. The upper and lower push plates 4 are used to close the upper and lower ends of the inner tank 31. The upper and lower ends of the inner tank 31 are provided with limiting rings 35. The push plates 4 abut against the limiting rings 35 and are located inside the inner tank 31, so that the upper and lower push plates 4 are always located inside the inner tank 31.

[0027] The regenerating tank 3 is provided with a push rod 43 that connects to the push plate 4. The push rod 43 is fixedly connected to two push plates 4. The regenerating tank 3 is also equipped with a cylinder 44. The output end of the cylinder 44 is connected to the push rod 43. The cylinder 44 drives the push plate 4 to slide up and down along the inner wall of the inner tank 31 through the push rod 43. That is, the push plate 4 can slide up and down repeatedly inside the inner tank 31.

[0028] The push plate 4 has a water inlet hole 41 that connects to the inner tank 31, and the outer periphery of the inner tank 31 has through holes 311 spaced apart. Furthermore, a spiral tube 32 is provided inside the inner tank 31. The spiral tube 32 is located on the outer periphery of the push rod 43. The through holes 311 are located on the outer side of the spiral tube 32. One end of the spiral tube 32 is connected to the air outlet pipe 2, and the other end of the spiral tube 32 is connected to the exhaust pipe 33.

[0029] When the push plate 4 slides up and down repeatedly inside the inner tank 31, it drives clean water to flow into the inner tank 31 through the water inlet 41, and then flows outward through the spiral tube 32 of the air outlet pipe 2. After that, it flows outward through the through hole 311 to the space between the heat recovery tank 3 and the inner tank 31, so that the clean water can fully contact the surface of the spiral tube 32 of the air outlet pipe. Thus, the clean water absorbs the heat dissipated by the compressed air inside the spiral tube 32 during the process of flowing through it, so as to fully recover and utilize the heat, avoid waste of resources, and achieve the effect of energy saving.

[0030] The push plate 4 is rotatably provided with a stop plate 42 corresponding to the position of the water inlet 41. The stop plates 42 on the upper and lower push plates 4 are positioned opposite each other on the inner side of the inner tank 31. When the upper and lower push plates 4 are driven by the push rod 43 and move upward synchronously, clean water enters the inner tank 31 from the water inlet 41 of the upper push plate 4, and the stop plate 42 of the lower push plate 4 rotates downward and abuts against the push plate 4. That is, the stop plate 42 of the lower push plate 4 basically closes the water inlet 41 of the lower push plate 4 at this time, so that the clean water in the inner tank 31 needs to be discharged outward through the through hole 311.

[0031] When the upper and lower push plates 4 move downward synchronously with the push rod 43, clean water enters the inner tank 31 from the water inlet 41 of the lower push plate 4. The abutment plate 42 of the upper push plate 4 rotates upward and abuts against the push plate 4. That is, the abutment plate 42 of the upper push plate 4 basically closes the water inlet 41 of the upper push plate 4 at this time, so that the clean water in the inner tank 31 needs to be discharged outward through the through hole 311.

[0032] By sliding the push plate 4 up and down, the water is driven to circulate back and forth inside and outside the inner tank 31, thereby increasing the contact frequency between the water and the spiral tube 32 so that the heat can be utilized more fully.

[0033] The inner tank 31 is provided with a connecting plate 34 extending outward to the inner wall of the regenerating tank 3, and the connecting plate 34 is provided with a channel for the circulation of clean water. The connecting plate 34 is flush with the upper end of the inner tank 31, and the connecting plate 34 is used to fix the inner tank 31 inside the regenerating tank 3.

[0034] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. 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 compressed air energy-saving device, comprising an air outlet pipe (2) connected to a compressor body (1), the other end of the air outlet pipe (2) being connected to a regenerator tank (3), characterized in that: The regenerating tank (3) is provided with an inner tank (31) with openings at both the top and bottom. The vent pipe (2) passes through the regenerating tank (3) and extends into the inner tank (31). The inner tank (31) is provided with an exhaust pipe (33) that connects to the vent pipe (2) and extends to the outside of the regenerating tank (3). The upper and lower ends of the inner tank (31) are respectively provided with push plates (4). The push plates (4) are provided with water inlet holes (41) that connect to the inner tank (31). The outer periphery of the inner tank (31) is provided with through holes (311) at intervals.

2. The compressed air energy-saving device as described in claim 1, characterized in that: The push plate (4) is rotatably provided with a stop plate (42) corresponding to the position of the water inlet (41), and the stop plates (42) on the upper and lower push plates (4) are respectively provided on the inner side of the inner tank (31).

3. The compressed air energy-saving device as described in claim 1, characterized in that: The regenerating tank (3) is provided with a push rod (43) that connects to the push plate (4), and the push rod (43) drives the push plate (4) to slide up and down along the inner wall of the inner tank (31).

4. The compressed air energy-saving device as described in claim 3, characterized in that: A cylinder (44) is installed on the regenerating tank (3), and the output end of the cylinder (44) is connected to the push rod (43).

5. The compressed air energy-saving device as described in claim 1, characterized in that: The inner tank (31) is provided with a limiting ring (35) at the upper and lower ends, and the push plate (4) abuts against the limiting ring (35) and is located inside the inner tank (31).

6. The compressed air energy-saving device as described in claim 1, characterized in that: The inner tank (31) is provided with a spiral tube (32), and the through hole (311) is provided with the outer side of the spiral tube (32). One end of the spiral tube (32) is connected to the air outlet pipe (2), and the other end of the spiral tube (32) is connected to the exhaust pipe (33).

7. The compressed air energy-saving device as described in claim 1, characterized in that: The inner tank (31) is provided with a connecting plate (34) extending outward to the inner wall of the regenerating tank (3), and the connecting plate (34) is flush with the upper end of the inner tank (31).

8. The compressed air energy-saving device as described in claim 1, characterized in that: The upper end of the regenerating tank (3) is provided with a water supply pipe (36) for conveying cold water, and the lower end of the regenerating tank (3) is connected to a drain pipe (37).