Waste heat recovery device for air compressor

Abstract

The utility model relates to the technical field of waste heat recovery, disclose a kind of waste heat recovery device for air compressor, including shell, and install the hot air subassembly of upper layer of shell and the hot water subassembly of lower layer.The core is the shunt component being set between two big components, the shunt component is combined by three-way, upper solenoid valve and lower solenoid valve, and hot air from air inlet is selectively introduced into hot air subassembly or hot water subassembly.The hot air subassembly includes drying machine and filter screen for producing clean hot air, and the hot water subassembly includes water tank and heat pipe for heating water.The utility model solves the problem of single waste heat recovery mode in prior art, realizes flexible and efficient recovery of energy by the structure design of one machine two uses, significantly improves the comprehensive utilization value and economic benefit of equipment.

Description

Technical Field

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

[0002] Air compressors play an indispensable role in modern industrial production and are widely used in many fields such as machinery manufacturing, chemical industry, and textile industry. However, in the process of converting electrical energy into the potential energy of compressed air, a considerable portion of the energy is lost as heat, generating a large amount of high-temperature exhaust gas.

[0003] If this high-temperature exhaust gas is directly released into the atmosphere, it will not only cause a huge waste of energy and is inconsistent with the current social development trend of energy conservation and emission reduction, but may also cause thermal pollution to the working environment.

[0004] To improve energy efficiency, some waste heat recovery devices for air compressors have emerged in existing technologies. These devices can recover heat from high-temperature exhaust gases to heat water for domestic or industrial use, or to generate hot air for heating or drying. However, existing waste heat recovery devices are usually relatively simple in function; a single unit can often only achieve one recovery mode, either producing hot water or generating hot air.

[0005] This fixed functionality limits the application scenarios of the equipment, making it impossible to flexibly switch according to the actual needs of users (for example, hot water is mainly needed in summer, while hot air is needed more in winter). This results in the equipment being idle during certain periods, with low overall utilization efficiency, making it difficult to maximize the economic benefits of waste heat recovery.

[0006] Therefore, this utility model proposes a waste heat recovery device for air compressors to overcome the shortcomings of the prior art. Utility Model Content

[0007] In view of the problems of low comprehensive utilization efficiency caused by the single waste heat recovery mode, fixed function, and inability to flexibly switch according to actual needs in the existing waste heat recovery device for air compressors, this utility model aims to provide a waste heat recovery device for air compressors with improved structure that can effectively solve the above problems.

[0008] This utility model provides a waste heat recovery device for an air compressor, comprising: a housing, a hot air assembly installed in the upper layer inside the housing, and a hot water assembly installed in the lower layer inside the housing; and a diversion assembly fixedly installed between the hot air assembly and the hot water assembly.

[0009] The diversion component includes an air inlet, a three-way valve is fixedly connected to the rear end of the air inlet, an upper solenoid valve is fixedly connected to the first outlet of the three-way valve, the outlet end of the upper solenoid valve is connected to the hot air component through an air supply pipe, and a lower solenoid valve is fixedly connected to the second outlet of the three-way valve, the outlet end of the lower solenoid valve is connected to the hot water component.

[0010] Preferably, the hot air assembly includes a dryer, the air supply pipe is connected to the dryer, an upper partition is fixed inside the housing, and the air outlet of the dryer is connected to a sealed space enclosed by the upper partition and the housing through an air inlet pipe; the hot air assembly also includes a fan fixed inside the sealed space.

[0011] Preferably, the housing has a sliding groove, the hot air assembly further includes a frame, the frame is slidably connected in the sliding groove, a filter screen is fixed inside the frame, and the filter screen is located in the air outlet path of the fan; the frame is connected to a handle.

[0012] Preferably, the hot water assembly includes a water tank, an upper uniform distribution plate is fixed to the top of the water tank, a lower uniform distribution plate is fixed to the bottom of the water tank, and the upper and lower ends of the heat pipe are respectively sealed and connected to the upper uniform distribution plate and the lower uniform distribution plate.

[0013] Preferably, the outlet end of the lower solenoid valve is connected to the upper uniform distribution plate, and the lower uniform distribution plate is connected to an exhaust port.

[0014] Preferably, the hot water assembly further includes a heat insulation plate, which is fixed above the upper uniformly distributed plate, and the outlet end of the lower solenoid valve passes through the heat insulation plate and communicates with the upper uniformly distributed plate.

[0015] Preferably, the water tank is connected to a water inlet and a faucet.

[0016] Preferably, the device further includes a door assembly installed in front of the diversion assembly, the door assembly including a safety door rotatably connected to the housing via a hinge, and a safety lock installed on the safety door.

[0017] This utility model has the following beneficial effects: 1. This utility model solves the problem of existing waste heat recovery devices having a single function and being unable to flexibly switch recovery modes according to needs by setting a diversion component that can selectively guide hot air to the hot air component or the hot water component. It achieves the technical effect of using waste heat for two purposes at once, which can both generate hot air and provide hot water, significantly improving the flexibility of the equipment and the overall utilization efficiency throughout the year.

[0018] 2. This utility model solves the problems of inconvenient maintenance and complicated replacement or cleaning processes of existing filter devices by setting the filter screen in a frame that can be pulled out along the slide groove. It achieves the technical effect of making the replacement or maintenance of the filter screen simple and quick, reducing the maintenance difficulty, and improving the practicality of the equipment.

[0019] 3. This utility model, by setting an upper and lower uniform distribution plate in the hot water assembly, allows hot air to enter each heat pipe evenly for efficient heat exchange, solving the problems of insufficient heat exchange and low efficiency that may exist in the traditional heat exchange process. It achieves the technical effect of significantly improving heat transfer efficiency and ensuring that hot water can be prepared quickly and efficiently. Attached Figure Description

[0020] Figure 1 This is a three-dimensional schematic diagram of a waste heat recovery device for an air compressor proposed in this utility model; Figure 2 This is a schematic diagram of the fan structure of a waste heat recovery device for an air compressor proposed in this utility model; Figure 3 This is a cross-sectional schematic diagram of the housing of a waste heat recovery device for an air compressor proposed in this utility model; Figure 4 This is a schematic diagram of the water tank structure of a waste heat recovery device for an air compressor proposed in this utility model.

[0021] Legend: 1. Housing; 2. Door assembly; 201. Safety door; 202. Safety lock; 203. Hinge; 3. Hot air assembly; 301. Frame; 302. Filter screen; 303. Handle; 304. Slide rail; 305. Fan; 306. Air inlet pipe; 307. Upper partition; 308. Dryer; 4. Hot water assembly; 401. Insulation board; 402. Water tank; 403. Upper distribution plate; 404. Water inlet; 405. Heat pipe; 406. Lower distribution plate; 407. Faucet; 408. Exhaust port; 5. Diverter assembly; 501. Air inlet; 502. T-junction; 503. Lower solenoid valve; 504. Upper solenoid valve; 505. Air supply pipe. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0023] Example: Please refer to Figures 1 to 4 This utility model provides a waste heat recovery device for air compressors, which aims to solve the problems in the prior art where the direct emission of waste heat from air compressors leads to energy waste and there is a lack of an integrated structure that can recover and utilize waste heat in multiple modes.

[0024] like Figure 1 and Figure 3 As shown, the waste heat recovery device for the air compressor includes a housing 1. A hot air assembly 3 is installed in the upper part of the housing 1, and a hot water assembly 4 is installed in the lower part of the housing 1. A diversion assembly 5 is fixedly installed between the hot air assembly 3 and the hot water assembly 4. The diversion assembly 5 includes an air inlet 501 connected to the hot air outlet of an external air compressor. A three-way valve 502 is fixedly connected to the rear end of the air inlet 501. The three-way valve 502 has two outlets. The first outlet is fixedly connected to an upper solenoid valve 504. The outlet end of the upper solenoid valve 504 is connected to the hot air assembly 3 through an air supply pipe 505. The second outlet of the three-way valve 502 is fixedly connected to a lower solenoid valve 503. The outlet end of the lower solenoid valve 503 is connected to the hot water assembly 4.

[0025] Please refer to the following carefully. Figure 2 and Figure 3 The structure of the hot air assembly 3 is described in detail below. When the upper solenoid valve 504 is open and the lower solenoid valve 503 is closed, hot air from the air compressor is guided into the hot air assembly 3. The hot air assembly 3 includes a dryer 308. The outlet end of the air supply pipe 505 is connected to the inlet end of the dryer 308. After the hot air is dehydrated in the dryer 308, it enters the sealed space formed by the upper partition 307 and the inner wall of the housing 1 through the inlet pipe 306. The upper partition 307 is fixed inside the housing 1. A fan 305 is also fixed inside the sealed space. The fan 305 is used to circulate the hot air in the sealed space. Dry, hot air is blown towards the outside of the housing 1. A filter structure is provided in the air outlet path of the fan 305. The filter structure includes a groove 304 opened on the side wall of the housing 1 and a frame 301 slidably connected in the groove 304. A filter screen 302 is fixed inside the frame 301. A handle 303 is connected to the outer end face of the frame 301. After the hot air blown out by the fan 305 passes through the filter screen 302, the impurities in the air are filtered out, thereby achieving the output of clean hot air. When it is necessary to replace or repair the filter screen 302, the frame 301 can be pulled out along the groove 304 by pulling the handle 303.

[0026] As a preferred implementation method, please refer to Figure 1 and Figure 4The structure of the hot water assembly 4 is described in detail below. When the upper solenoid valve 504 is closed and the lower solenoid valve 503 is open, hot air from the air compressor is guided into the hot water assembly 4. The hot water assembly 4 includes a water tank 402. An upper uniform distribution plate 403 is fixed to the top of the water tank 402, and a lower uniform distribution plate 406 is fixed to the bottom of the water tank 402. The upper and lower ends of the heat pipe 405 are respectively sealed and connected to the upper uniform distribution plate 403 and the lower uniform distribution plate 406. The outlet end of the lower solenoid valve 503 is connected to the upper uniform distribution plate 403, so that the hot air... Air can enter the heat pipe 405. The lower uniform distribution plate 406 is connected to an exhaust port 408 for discharging the air after heat exchange. In order to reduce heat loss to other parts of the equipment, the hot water assembly 4 also includes a heat insulation plate 401. The heat insulation plate 401 is fixed above the upper uniform distribution plate 403, and the outlet end of the lower solenoid valve 503 passes through the heat insulation plate 401 and communicates with the upper uniform distribution plate 403. In addition, the water tank 402 is also connected to an inlet 404 for external water injection and a tap 407 for dispensing hot water.

[0027] As another preferred embodiment, please refer to Figure 1 To facilitate internal maintenance of the equipment, the device also includes a door assembly 2, which is installed in front of the diversion assembly 5. The door assembly 2 includes a safety door 201, which is rotatably connected to the housing 1 via a hinge 203. A safety lock 202 is also installed on the safety door 201.

[0028] The working principle of this utility model is as follows: When hot air needs to be recovered, the upper solenoid valve 504 is controlled to be open and the lower solenoid valve 503 is controlled to be closed. Hot air from the air compressor enters through the air inlet 501 and passes through the three-way valve 502. It is then guided through the air delivery pipe 505 into the dryer 308 inside the hot air assembly 3 for dehydration. The dried hot air enters the sealed space formed by the upper partition 307 and the housing 1 through the air inlet pipe 306. Then, the fan 305 starts and blows the hot air in the sealed space toward the filter screen 302. After the hot air passes through the filter screen 302 and is filtered, it is discharged from the device, forming clean hot air.

[0029] When hot water needs to be recycled, the lower solenoid valve 503 is controlled to be open and the upper solenoid valve 504 is controlled to be closed. At this time, hot air enters from the air inlet 501 and passes through the three-way valve 502, and is guided into the hot water component 4. The hot air first enters the upper distribution plate 403 and is evenly distributed into the heat pipe 405. During this process, the heat of the hot air is transferred to the water in the water tank 402 through the pipe wall of the heat pipe 405, thereby heating the water. The air that has completed the heat transfer is collected in the lower distribution plate 406 and finally discharged through the exhaust port 408.

[0030] By switching between the upper solenoid valve 504 and the lower solenoid valve 503 in the diversion component 5, this utility model enables the same stream of waste heat air discharged from the air compressor to be selectively used to prepare clean hot air or heat water according to actual needs. This solves the problem of single waste heat recovery method and low utilization rate in the prior art, and realizes efficient and flexible reuse of energy.

[0031] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A waste heat recovery device for an air compressor, comprising a housing (1), wherein a hot air assembly (3) is installed in the upper inner layer of the housing (1), and a hot water assembly (4) is installed in the lower inner layer of the housing (1). Its features are, The device also includes a diversion component (5), which is fixedly installed between the hot air component (3) and the hot water component (4). The diversion component (5) includes an air inlet (501), and a three-way valve (502) is fixedly connected to the rear end of the air inlet (501). An upper solenoid valve (504) is fixedly connected to the first outlet of the three-way valve (502). The outlet end of the upper solenoid valve (504) is connected to the hot air component (3) through an air supply pipe (505). A lower solenoid valve (503) is fixedly connected to the second outlet of the three-way valve (502). The outlet end of the lower solenoid valve (503) is connected to the hot water component (4).

2. The waste heat recovery device for an air compressor according to claim 1, characterized in that, The hot air assembly (3) includes a dryer (308), the air supply pipe (505) is connected to the dryer (308), the upper partition (307) is fixed inside the housing (1), and the air outlet of the dryer (308) is connected to the sealed space formed by the upper partition (307) and the housing (1) through the air inlet pipe (306); the hot air assembly (3) also includes a fan (305) fixed in the sealed space.

3. The waste heat recovery device for an air compressor according to claim 2, characterized in that, The housing (1) is provided with a sliding groove (304), and the hot air assembly (3) also includes a frame (301). The frame (301) is slidably connected in the sliding groove (304). A filter screen (302) is fixed inside the frame (301), and the filter screen (302) is located on the air outlet path of the fan (305). The frame (301) is connected with a handle (303).

4. The waste heat recovery device for an air compressor according to claim 1, characterized in that, The hot water assembly (4) includes a water tank (402), an upper uniform distribution plate (403) is fixed to the top of the water tank (402), a lower uniform distribution plate (406) is fixed to the bottom of the water tank (402), and the upper and lower ends of the heat pipe (405) are respectively sealed and connected to the upper uniform distribution plate (403) and the lower uniform distribution plate (406).

5. A waste heat recovery device for an air compressor according to claim 4, characterized in that, The outlet end of the lower solenoid valve (503) is connected to the upper uniform distribution plate (403), and the lower uniform distribution plate (406) is connected to an exhaust port (408).

6. A waste heat recovery device for an air compressor according to claim 5, characterized in that, The hot water assembly (4) also includes a heat insulation plate (401), which is fixed above the upper uniformly distributed plate (403), and the outlet end of the lower solenoid valve (503) passes through the heat insulation plate (401) and communicates with the upper uniformly distributed plate (403).

7. A waste heat recovery device for an air compressor according to claim 4, characterized in that, The water tank (402) is connected to a water inlet (404) and a faucet (407).

8. A waste heat recovery device for an air compressor according to claim 1, characterized in that, The device also includes a door assembly (2) which is installed in front of the diversion assembly (5). The door assembly (2) includes a safety door (201) which is rotatably connected to the housing (1) via a hinge (203). A safety lock (202) is installed on the safety door (201).

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