Self-cleaning waste heat recovery filtering device

Abstract

The utility model relates to the technical field of waste heat recovery, in particular to a self-cleaning waste heat recovery filtering device which comprises a box body, the surface of the box body is fixedly connected with a water inlet pipe and a water outlet pipe, a heat exchange pipe is arranged in the box body, and one end of the heat exchange pipe is fixedly connected with a purification mechanism. The filter screen plate is arranged in the purification box of the purification mechanism, impurities of entered fluid media (such as waste gas and the like) can be filtered out, the impurities are prevented from entering subsequent heat exchange pipes and other components, the heat exchange efficiency can be improved, the waste heat recovery effect is guaranteed, and the energy-saving and environment-friendly effects are achieved. And meanwhile, the scraping plate is driven by the electric push rod to scrape and clean the filter screen plate, the self-cleaning function is achieved, manual regular cleaning is not needed, the cleaning efficiency is improved, and the device can be better kept in the optimal working state all the time.

Description

A self-cleaning waste heat recovery filtration device Technical Field

[0001] This utility model relates to the technical field of waste heat recovery devices, and in particular to a self-cleaning waste heat recovery filter device. Background Technology

[0002] Many industrial production processes and energy utilization systems often generate large amounts of fluid media containing waste heat, such as exhaust gases and wastewater. Recovering and reusing this waste heat not only effectively saves energy and reduces production costs but also aligns with the current trend of energy conservation and emission reduction. However, these fluid media often contain varying degrees of impurities, such as dust particles and chemical fumes in exhaust gases, and suspended solids and sediments in wastewater. During waste heat recovery, these impurities easily adhere to heat exchange components and related pipelines. This reduces heat exchange efficiency and affects the waste heat recovery effect; furthermore, long-term accumulation may clog pipelines or damage internal components, increasing maintenance costs and affecting the normal service life of the equipment.

[0003] While some existing waste heat recovery devices can achieve basic heat recovery functions, they lack sufficient consideration for filtering impurities and self-cleaning. Most rely on periodic manual cleaning, which is not only inefficient but also makes it difficult to ensure the device maintains optimal operating conditions. Therefore, there is an urgent need for a waste heat recovery device that can automatically filter impurities and has self-cleaning capabilities to solve these problems. Summary of the Invention

[0004] The purpose of this invention is to solve the problems mentioned in the background art and to propose a self-cleaning waste heat recovery filter device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a self-cleaning waste heat recovery filtration device, comprising a housing, an inlet pipe and an outlet pipe fixedly connected to the surface of the housing, a heat exchange pipe disposed inside the housing, a purification mechanism fixedly connected to one end of the heat exchange pipe, the purification mechanism comprising a purification chamber, an air inlet pipe fixedly connected to the surface of the purification chamber, a square groove formed on the top surface of the purification chamber, a slot formed at the bottom of the square groove, a filter screen plate inserted inside the slot, a connecting plate disposed inside the square groove, the top of the filter screen plate slidably connected to the lower surface of the connecting plate, an electric push rod fixedly connected to the top of the purification chamber, a scraper fixedly connected to the output end of the electric push rod, the blade of the scraper abutting against the surface of the filter screen plate, and the connecting plate fixedly connected to the purification chamber by a locking assembly.

[0006] Preferably, the locking assembly includes a block and a fixed base. The block is engaged with the fixed base. A locking pin is slidably connected inside the block. The locking pin is inserted into the fixed base. A pull rod is fixedly connected to the surface of the locking pin. A spring is sleeved on the surface of the pull rod.

[0007] Preferably, there are two sets of locking pins, and the two sets of locking pins are symmetrically distributed on both sides of the middle part of the surface of the connecting plate.

[0008] Preferably, the front of the purification box has a square groove, the bottom of the square groove has an opening, a collection box is inserted inside the opening, a fixing block is fixedly connected to the surface of the collection box, a sleeve is fixedly connected to the surface of the purification box, a screw is threaded inside the sleeve, one end of the screw is inserted inside the fixing block, and a knob is fixedly connected to the other end of the screw.

[0009] Preferably, a sealing gasket is provided inside the first square groove, and a sealing gasket is provided inside the second square groove.

[0010] Preferably, the heat exchange tube has a continuous S-shaped structure inside the housing.

[0011] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0012] 1. In this utility model, the filter screen plate installed in the purification box of the purification mechanism can filter impurities in the incoming fluid medium (such as exhaust gas), preventing impurities from entering subsequent heat exchange pipes and other components. This helps to improve heat exchange efficiency, ensure waste heat recovery, reduce the occurrence of impurities adhering, clogging or damaging the internal components of the device, and extend the normal service life of the device. At the same time, the electric push rod drives the scraper to scrape and clean the filter screen plate, realizing a self-cleaning function. There is no need for regular manual cleaning, which improves cleaning efficiency and makes it easier for the device to always maintain the best working condition.

[0013] 2. In this utility model, a structure for inserting a collection box is provided on the front of the purification box, and the collection box is fixed by the cooperation of a screw and a fixing block, which facilitates the collection of filtered impurities. Moreover, the screw can be easily operated by a knob, making it easy to periodically remove the collection box to clean impurities. This makes the impurity collection and cleaning process simple and easy, further ensuring the cleanliness of the purification box and maintaining a good filtration environment. Attached Figure Description

[0014] Figure 1 is a schematic diagram of a self-cleaning waste heat recovery filter device proposed in this utility model;

[0015] Figure 2 is an exploded schematic diagram of a self-cleaning waste heat recovery filter device proposed in this utility model.

[0016] Figure 3 is an enlarged view of point A in Figure 2 of the self-cleaning waste heat recovery filter device proposed in this utility model;

[0017] Figure 4 is a partial schematic diagram of a self-cleaning waste heat recovery filter device proposed in this utility model.

[0018] Figure 5 is a cross-sectional view of the purification box of the self-cleaning waste heat recovery filter device proposed in this utility model;

[0019] Figure 6 is a cross-sectional view of the housing of a self-cleaning waste heat recovery filter device proposed in this utility model.

[0020] Legend:

[0021] 1. Box body; 2. Purification mechanism; 201. Purification box; 202. Square channel one; 203. Square channel two; 204. Filter screen; 205. Connecting plate; 206. Electric push rod; 207. Scraper; 3. Heat exchange tube; 4. Air inlet pipe; 5. Locking assembly; 501. Block; 502. Locking pin; 503. Spring; 504. Pull rod; 505. Fixing base; 6. Sealing gasket one; 7. Square channel two; 8. Groove two; 9. Collection box; 10. Fixing block; 11. Screw; 12. Knob; 13. Sleeve; 14. Sealing gasket two; 15. Water inlet pipe; 16. Water outlet pipe. Detailed Implementation

[0022] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0023] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0024] Example 1: As shown in Figures 1-6, this utility model provides a technical solution: a self-cleaning waste heat recovery filtration device, including a housing 1. An inlet pipe 15 and an outlet pipe 16 are fixedly connected to the surface of the housing 1. A heat exchange pipe 3 is installed inside the housing 1. One end of the heat exchange pipe 3 is fixedly connected to a purification mechanism 2. The purification mechanism 2 includes a purification box 201. An air inlet pipe 4 is fixedly connected to the surface of the purification box 201. A square groove 202 is formed on the top surface of the purification box 201. A slot is formed at the bottom of the square groove 202. A filter screen 204 is inserted inside the slot. A connecting plate 205 is installed inside the square groove 202. The top of the filter screen 204 is slidably connected to the lower surface of the connecting plate 205. An electric push rod 206 is fixedly connected to the top of the purification box 201. A scraper 207 is fixedly connected to the output end of the electric push rod 206. The blade of the scraper 207 abuts against the surface of the filter screen 204. The connecting plate 205 is fixedly connected to the purification box 201 through the locking assembly 5. The locking assembly 5 includes a block 501 and a fixing seat 505. The block 501 and the fixing seat 505 are engaged. A locking pin 502 is slidably connected inside the block 501. The locking pin 502 is inserted into the inside of the fixing seat 505. A pull rod 504 is fixedly connected to the surface of the locking pin 502. A spring 503 is sleeved on the surface of the pull rod 504. There are two sets of locking pins 502. The two sets of locking pins 502 are symmetrically distributed on both sides of the middle part of the surface of the connecting plate 205.

[0025] In this embodiment, the filter screen 204 installed in the purification chamber 201 of the purification mechanism 2 can filter impurities from the incoming fluid medium (such as exhaust gas), preventing impurities from entering subsequent components such as the heat exchange pipe 3. This helps improve heat exchange efficiency, ensures waste heat recovery, reduces the possibility of impurities adhering, clogging, or damaging internal components, and extends the normal service life of the device. Simultaneously, the electric push rod 206 drives the scraper 207 to scrape and clean the filter screen 204, achieving a self-cleaning function. This eliminates the need for regular manual cleaning, improves cleaning efficiency, and helps the device maintain optimal operating conditions. Status; The locking assembly 5 adopts a method of engaging the block 501 with the fixed seat 505 and inserting the locking pin 502, and is equipped with a pull rod 504 and a spring 503. This structure facilitates the fixing and disassembly of the connecting plate 205, and makes it convenient to maintain and replace the filter screen 204 and other related components when needed, making the maintenance of the entire purification mechanism 2 more convenient and efficient; The two sets of locking pins 502 are symmetrically distributed on both sides of the middle of the surface of the connecting plate 205, making the connection between the connecting plate 205 and the purification box 201 more stable and reliable, and avoiding loosening due to unstable connection during the operation of the device.

[0026] Example 2: As shown in Figures 2-6, a square groove 2037 is provided on the front of the purification box 201, and a slot 8 is provided at the bottom of the square groove 2037. A collection box 9 is inserted inside the slot 8, and a fixing block 10 is fixedly connected to the surface of the collection box 9. A sleeve 13 is fixedly connected to the surface of the purification box 201, and a screw 11 is threaded inside the sleeve 13. One end of the screw 11 is inserted into the inside of the fixing block 10, and a knob 12 is fixedly connected to the other end of the screw 11. A sealing gasket 6 is provided inside the square groove 202, and a sealing gasket 14 is provided inside the square groove 2037. The heat exchange pipe 3 has a continuous S-shaped structure inside the box 1.

[0027] In this embodiment, a structure for inserting a collection box 9 is provided on the front of the purification box 201. The collection box 9 is fixed by a screw 11 and a fixing block 10, which facilitates the collection of filtered impurities. Moreover, the screw 11 can be easily operated by the knob 12, making it easy to periodically remove the collection box 9 to clean impurities. This makes the impurity collection and cleaning process simple and easy, further ensuring the cleanliness of the purification box 201 and maintaining a good filtration environment. The sealing gaskets 1 6 and 2 14 set inside the square groove 1 202 and square groove 2 2037 can effectively prevent leakage of fluid medium when passing through the corresponding parts of the purification box 201, ensuring the sealing of the entire purification process. This makes the device safer and more reliable to operate, and also ensures that the filtration and impurity collection functions are normal, avoiding energy waste and environmental pollution caused by leakage. The heat exchange tube 3 has a continuous S-shaped structure inside the box 1, which increases the contact area and contact time between the fluid medium and the heat exchange tube 3, enabling more complete heat exchange, improving the efficiency of waste heat recovery, and better realizing the recovery and reuse of waste heat resources, which meets the needs of energy conservation and emission reduction.

[0028] The working principle of this embodiment is as follows: In use, the medium requiring heat exchange (such as cooling water) is first added to the housing 1 through the water inlet pipe 15. When the self-cleaning waste heat recovery filter device is working, the fluid medium carrying waste heat (such as exhaust gas) enters the purification tank 201 through the air inlet pipe 4. It first passes through the filter plate 204, which filters and intercepts impurities in the fluid medium (such as dust particles and chemical smoke particles in the exhaust gas), allowing the relatively clean fluid medium to continue flowing to the subsequent heat exchange pipe 3. During operation, when a certain amount of impurities accumulate on the filter screen 204, the electric push rod 206 is activated, and its output end drives the scraper 207 to move. The blade of the scraper 207 abuts against the surface of the filter screen 204, and the scraping action of the scraper 207 removes the impurities attached to the filter screen 204. The removed impurities fall into the collection box 9 below. The collection box 9 is fixed to the sleeve 13 and screw 11 on the purification box 201 by the fixing block 10. When it is necessary to clean the impurities in the collection box 9, the knob 12 is rotated to drive the screw... Rotating rod 11 separates screw 11 from fixing block 10, allowing collection box 9 to be pulled out for cleaning. Connecting plate 205 is fixed to purification box 201 via locking assembly 5. Block 501 in locking assembly 5 engages with fixing seat 505, and locking pin 502 is inserted into fixing seat 505 under the elastic force of spring 503 for a secure connection. To disassemble connecting plate 205 and filter plate 204 for maintenance, pull rod 504 overcomes spring 503 to disengage locking pin 502 from fixing seat 505 for the corresponding operation. The purified fluid medium enters the heat exchange tube 3, which has a continuous S-shaped structure. This structure increases the contact area and contact time with other media (such as cooling media, depending on the specific waste heat recovery method) in the tank 1, thereby enabling more thorough heat exchange and effective recovery of waste heat. Finally, the fluid medium after heat exchange is discharged through the port of the heat exchange tube 3, completing the entire waste heat recovery filtration and self-cleaning process. When it is necessary to discharge the liquid in the tank 1, simply open the valve on the water outlet pipe 16.

[0029] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A self-cleaning waste heat recovery filter device, comprising a housing (1), characterized in that: The surface of the housing (1) is fixedly connected to an inlet pipe (15) and an outlet pipe (16). A heat exchange pipe (3) is installed inside the housing (1). One end of the heat exchange pipe (3) is fixedly connected to a purification mechanism (2). The purification mechanism (2) includes a purification box (201). An air inlet pipe (4) is fixedly connected to the surface of the purification box (201). A square groove (202) is formed on the top surface of the purification box (201). A slot is formed at the bottom of the square groove (202). A filter is inserted into the slot. The filter screen plate (204) has a connecting plate (205) inside the square groove (202). The top of the filter screen plate (204) is slidably connected to the lower surface of the connecting plate (205). An electric push rod (206) is fixedly connected to the top of the purification box (201). A scraper (207) is fixedly connected to the output end of the electric push rod (206). The blade of the scraper (207) abuts against the surface of the filter screen plate (204). The connecting plate (205) is fixedly connected to the purification box (201) through a locking assembly (5).

2. The self-cleaning waste heat recovery filter device according to claim 1, characterized in that: The locking assembly (5) includes a block (501) and a fixing seat (505). The block (501) is engaged with the fixing seat (505). A locking pin (502) is slidably connected inside the block (501). The locking pin (502) is inserted into the fixing seat (505). A pull rod (504) is fixedly connected to the surface of the locking pin (502). A spring (503) is sleeved on the surface of the pull rod (504).

3. The self-cleaning waste heat recovery filter device according to claim 2, characterized in that: There are two sets of the locking pins (502), and the two sets of locking pins (502) are symmetrically distributed on both sides of the middle part of the surface of the connecting plate (205).

4. The self-cleaning waste heat recovery filter device according to claim 1, characterized in that: The front of the purification box (201) is provided with a square groove (7) (203), and the bottom of the square groove (7) (203) is provided with a slot (8). A collection box (9) is inserted into the slot (8). A fixing block (10) is fixedly connected to the surface of the collection box (9). A sleeve (13) is fixedly connected to the surface of the purification box (201). A screw (11) is threadedly connected to the inside of the sleeve (13). One end of the screw (11) is inserted into the inside of the fixing block (10), and a knob (12) is fixedly connected to the other end of the screw (11).

5. The self-cleaning waste heat recovery filter device according to claim 4, characterized in that: The first square groove (202) is provided with a sealing gasket (6) inside, and the second square groove (7) (203) is provided with a sealing gasket (14) inside.

6. The self-cleaning waste heat recovery filter device according to claim 1, characterized in that: The heat exchange tube (3) has a continuous S-shaped structure inside the box (1).

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