Flue gas waste heat recovery device convenient to maintain

Abstract

The utility model discloses a flue gas waste heat recovery device convenient to maintain, and relates to the technical field of flue gas waste heat recovery, the flue gas waste heat recovery device convenient to maintain comprises a waste heat recovery equipment body, an air inlet of the waste heat recovery equipment body is provided with a filtering mechanism and a cleaning mechanism which are used in cooperation, and the filtering mechanism comprises a first mounting ring; the first mounting ring is located on one side of the waste heat recovery device body, an inner groove is formed in the first mounting ring, and a filter screen is movably inserted into the inner groove. By arranging the filter mechanism, dust at the smoke inlet can be filtered through the filter screen, dust accumulation in the flue gas waste heat recovery device body is reduced, and the waste heat recovery efficiency is improved. According to the flue gas waste heat recovery device, the filter screen can be cleaned and collected through the cleaning mechanism, so that dust on the surface of the filter screen can be reduced, and the circulation amount of an air inlet of the flue gas waste heat recovery device is larger.

Description

Technical Field

[0001] This application relates to the field of flue gas waste heat recovery technology, and in particular to a flue gas waste heat recovery device that is easy to maintain. Background Technology

[0002] Flue gas waste heat recovery equipment is a device used to recover heat from industrial exhaust gas. It mainly uses heat exchange technology to transfer heat from high-temperature flue gas to other media (such as water or air) to achieve the reuse of thermal energy, aiming to improve energy utilization efficiency and reduce environmental pollution.

[0003] Regarding the aforementioned technologies, the inventors believe the following problems still exist:

[0004] Firstly, some existing waste heat recovery equipment tends to accumulate dust inside the flue gas when recovering heat, due to the large amount of dust in the flue gas, making subsequent maintenance difficult.

[0005] Secondly, when using a filter to filter dust in flue gas, the large amount of dust in the flue gas can easily cause the filter to become clogged, increasing the airflow resistance at the flue gas inlet of the waste heat recovery equipment and reducing the flue gas flow rate.

[0006] To address the aforementioned problems, the inventors propose a flue gas waste heat recovery device that is easy to maintain. Utility Model Content

[0007] In order to improve the problem that some existing devices are difficult to clean due to the large amount of dust in the flue gas, the purpose of this utility model is to provide a flue gas waste heat recovery device that is easy to maintain.

[0008] To solve the above problems, this utility model provides the following solution: a flue gas waste heat recovery device that is easy to maintain, including a waste heat recovery device body. The air inlet of the waste heat recovery device body is provided with a filter mechanism and a cleaning mechanism that work together. The filter mechanism includes a first mounting ring, which is located on one side of the waste heat recovery device body. An inner groove is opened inside the first mounting ring, and a filter screen is movably inserted inside the inner groove. A fixing plate is rotatably mounted on the top surface of the first mounting ring, and the other end of the fixing plate is engaged with the first mounting ring.

[0009] Preferably, the cleaning mechanism includes a second mounting ring, which is fixedly installed on the side of the first mounting ring facing away from the waste heat recovery equipment body. A rotating shaft is rotatably installed inside one side of the second mounting ring. A cleaning plate is fixedly sleeved on the outer surface of the rotating shaft. One side of the cleaning plate is in contact with the filter screen. A collection box is fixedly inserted below the second mounting ring.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0011] 1. This utility model, by setting up a filtration mechanism, can filter the dust at the flue gas inlet through the filter screen, reducing the accumulation of dust inside the flue gas waste heat recovery device, thereby making subsequent maintenance of the flue gas waste heat recovery device more convenient.

[0012] 2. This utility model, by setting up a cleaning mechanism, can clean and collect the filter screen, thereby reducing the dust on the surface of the filter screen and increasing the flow rate of the flue gas waste heat recovery device inlet. Attached Figure Description

[0013] 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.

[0014] Figure 1 This is a schematic diagram of the structure of this utility model.

[0015] Figure 2 This is a schematic diagram of the filter mechanism of this utility model.

[0016] Figure 3 This is a schematic diagram of the cleaning mechanism of this utility model.

[0017] In the diagram: 1. Waste heat recovery equipment body; 2. Filtration mechanism; 21. Locking block; 22. Inner groove; 23. Fixing plate; 24. Hinge; 25. First mounting ring; 26. Filter screen; 3. Cleaning mechanism; 31. Second mounting ring; 32. Groove; 33. Cleaning plate; 34. Rotating shaft; 35. Handle; 36. Box door; 37. Collection box. Detailed Implementation

[0018] 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.

[0019] Example: Figure 1-3As shown, this utility model provides a flue gas waste heat recovery device that is easy to maintain, including a waste heat recovery device body 1. The waste heat recovery device body 1 is a mature existing technology. The air inlet of the waste heat recovery device body 1 is provided with a filter mechanism 2 and a cleaning mechanism 3 that work together. The filter mechanism 2 is installed on one side of the waste heat recovery device body 1, and the cleaning mechanism 3 is fixedly installed on one side of the filter mechanism 2. A connecting flange is fixedly installed on one side of the cleaning mechanism 3.

[0020] The filter mechanism 2 includes a first mounting ring 25, which can support the filter mechanism 2. The first mounting ring 25 is located on one side of the waste heat recovery equipment body 1 to prevent the filter mechanism 2 from falling off.

[0021] The first mounting ring 25 has an inner groove 22 inside. The lower part of the inner groove 22 is circular and the upper part is rectangular. The width of the rectangle is the diameter of the filter screen 26, so that the filter screen 26 can be installed inside the inner groove 22.

[0022] A filter screen 26 is inserted into the inner tank 22. The filter screen 26 can filter dust in the flue gas, thereby reducing the amount of dust inside the waste heat recovery equipment body 1.

[0023] A fixing plate 23 is rotatably mounted on the top surface of the first mounting ring 25. The fixing plate 23 can fix the filter screen 26 to prevent it from falling off. The cross-sectional shape of the fixing plate 23 is arc-shaped. A hinge 24 is fixedly mounted on one end of the fixing plate 23. The fixing plate 23 is rotatably mounted inside the first mounting ring 25 through the hinge 24. The other end of the fixing plate 23 is engaged with the first mounting ring 25. A locking block 21 is slidably mounted inside the first mounting ring 25. The locking block 21 is engaged with the fixing plate 23. The fixing plate 23 can be opened and closed through the locking block 21, thereby replacing the filter screen 26.

[0024] The cleaning mechanism 3 includes a second mounting ring 31, which is used as a support. The second mounting ring 31 is fixedly installed on the side of the first mounting ring 25 facing away from the waste heat recovery equipment body 1, thereby preventing the second mounting ring 31 from falling off.

[0025] A rotating shaft 34 is rotatably mounted inside one side of the second mounting ring 31. The rotating shaft 34 can rotate inside one side of the second mounting ring 31. A cleaning plate 33 is fixedly sleeved on the outer surface of the rotating shaft 34, so that the cleaning plate 33 can rotate through the rotating shaft 34.

[0026] A handle 35 is fixedly installed at one end of the cleaning plate 33. The handle 35 can easily control the position of the cleaning plate 33. One side of the cleaning plate 33 is in contact with the filter screen 26, so that the cleaning plate 33 can move on the surface of the filter screen 26 to clean the filter screen 26. The second mounting ring 31 has a groove 32 on the side close to the first mounting ring 25 that is used to cooperate with the cleaning plate 33. The cross-sectional shape of the groove 32 is a circle with the rotating shaft 34 as the center, which can facilitate the movement of the cleaning plate 33.

[0027] A collection box 37 is fixedly inserted below the second mounting ring 31. The collection box 37 can collect the dust that has been cleaned up. A door 36 is opened on one side of the lower part of the collection box 37. The door 36 can be opened to clean the dust inside the collection box 37.

[0028] Working principle: First, when the flue gas enters through the air inlet of the waste heat recovery equipment body 1, it will be filtered by the filter mechanism 2 and filtered by the filter screen 26, thereby reducing the amount of dust inside the waste heat recovery equipment body 1 and making subsequent maintenance more convenient.

[0029] When dust accumulates on the surface of the filter screen 26, the cleaning mechanism 3 can be used to turn the handle 35, causing the handle 35 to drive the cleaning plate 33 to rotate. The cleaning plate 33 rotates through the rotating shaft 34 and rotates inside the groove 32 on one side of the second mounting ring 31 to scrape off the dust on the surface of the filter screen 26, so that the dust falls into the collection box 37 for collection. The box door 36 can be opened for unified cleaning later.

[0030] When the filter screen 26 deforms due to prolonged exposure to high temperatures of flue gas, the locking block 21 can be used to disengage it from the fixing plate 23, allowing the fixing plate 23 to rotate inside the first mounting ring 25 via the hinge 24, thus removing the filter screen 26 from the inner groove 22 for replacement.

[0031] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A flue gas heat recovery device for easy maintenance, comprising a heat recovery equipment body (1), characterized in that: The air inlet of the waste heat recovery equipment body (1) is equipped with a filter mechanism (2) and a cleaning mechanism (3) that work together. The filtration mechanism (2) includes a first mounting ring (25), which is located on one side of the waste heat recovery equipment body (1). The first mounting ring (25) has an inner groove (22) inside, and a filter screen (26) is movably inserted inside the inner groove (22). A fixing plate (23) is rotatably mounted on the top surface of the first mounting ring (25), and the other end of the fixing plate (23) is engaged with the first mounting ring (25).

2. A flue gas heat recovery device according to claim 1, wherein: The cleaning mechanism (3) includes a second mounting ring (31), which is fixedly installed on the side of the first mounting ring (25) facing away from the waste heat recovery equipment body (1). A rotating shaft (34) is rotatably installed inside one side of the second mounting ring (31). A cleaning plate (33) is fixedly sleeved on the outer surface of the rotating shaft (34). One side of the cleaning plate (33) is in contact with the filter screen (26). A collection box (37) is fixedly inserted below the second mounting ring (31).

3. A flue gas heat recovery device for ease of maintenance as claimed in claim 1 wherein: The first mounting ring (25) has a sliding locking block (21) inside, which is engaged with the fixing plate (23).

4. A flue gas heat recovery device according to claim 1, wherein: A hinge (24) is fixedly installed at one end of the fixing plate (23), and the fixing plate (23) is rotatably installed inside the first mounting ring (25) via the hinge (24).

5. A flue gas heat recovery device according to claim 1, wherein: The cross-sectional shape of the fixing plate (23) is arc-shaped.

6. A flue gas heat recovery device for ease of maintenance as claimed in claim 2 wherein: The second mounting ring (31) has a groove (32) on the side near the first mounting ring (25) that is used in conjunction with the cleaning plate (33).

7. A flue gas heat recovery device for ease of maintenance as claimed in claim 2 wherein: A handle (35) is fixedly installed at one end of the cleaning plate (33).

8. A flue gas heat recovery device for ease of maintenance as claimed in claim 2 wherein: The collection box (37) has a door (36) on one side of its lower part.

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