Flue gas waste heat recovery heat exchange device for small kiln

Abstract

The utility model relates to the technical field of flue gas waste heat recovery, in particular to a flue gas waste heat recovery heat exchange device for a small kiln, which comprises a bottom plate, a treatment box is mounted on the left side of the top of the bottom plate, a heat exchange box is mounted on the right side of the top of the bottom plate, and a heat exchanger is mounted on the inner wall of the heat exchange box. Two mounting frames are inserted into the inner wall of the treatment box, filter elements are mounted on the front sides of the mounting frames, connecting blocks are mounted on the left sides and the right sides of the mounting frames, fixing blocks are mounted on the rear sides of the mounting frames on the upper side and the lower side, and sliding grooves are formed in the fixing blocks; the device has the beneficial effects that clamping blocks are separated from clamping grooves by extruding two pinching blocks, so that an operator conveniently pulls a fixing block backwards, two mounting frames on the front side of the fixing block are separated from a treatment box, the operator conveniently cleans a filter element, after the mounting frames are reset, the clamping blocks are always clamped in the inner walls of the clamping grooves by utilizing the elastic force of springs, and the clamping blocks are prevented from falling off from the inner walls of the clamping grooves. And therefore, subsequent disassembly and assembly by operators are facilitated, and the cleaning efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of flue gas waste heat recovery, in particular to a flue gas waste heat recovery heat exchange device for small furnaces. Background Technique

[0002] During industrial production, many furnaces and combustion equipment generate a large amount of flue gas, which contains a large amount of heat energy. The heat in these flue gases is usually discharged into the environment in the form of waste heat, resulting in waste of energy resources and environmental pollution problems. In order to effectively utilize these waste heat resources and improve energy utilization efficiency, it is necessary to collect and recycle them with the help of a waste heat recovery heat exchange device and make full use of these waste heat resources.

[0003] In the prior art, after the traditional waste heat recovery heat exchange device is used for a long time, the dust in the flue gas will block the filter plate, making it lose the filtering effect, so it needs to be disassembled and cleaned. However, due to the relatively fixed structure of the filter plate on the inner wall of the treatment box, the disassembly process is complicated and time-consuming, affecting the cleaning efficiency. And the existing waste heat recovery heat exchange devices usually fix the filter plate on the inner wall of the treatment box by bolts. Therefore, when cleaning, the operator needs to use tools to disassemble the bolts to remove the filter plate for cleaning, which is not only inconvenient to operate but also affects the disassembly and assembly efficiency.

[0004] Therefore, a flue gas waste heat recovery heat exchange device for small furnaces is needed to solve the problem that when the existing waste heat recovery heat exchange device cleans its filter plate, the operator needs to disassemble it with the help of tools, resulting in inconvenience for the operator to use. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a flue gas waste heat recovery heat exchange device for small furnaces to solve the problems put forward in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A flue gas waste heat recovery heat exchange device for small furnaces, including a bottom plate, a treatment box is installed on the left side of the top of the bottom plate, a heat exchange box is installed on the right side of the top of the bottom plate, a heat exchanger is installed on the inner wall of the heat exchange box, two installation frames are inserted into the inner wall of the treatment box, a filter element is installed on the front side of the installation frame, and connecting blocks are installed on both the left and right sides of the installation frame.

[0007] Preferably, fixing blocks are installed on the rear sides of the upper and lower installation frames, a sliding groove is opened in the front part of the fixing block, two clamping blocks are slidably connected to the inner wall of the sliding groove, a sliding rod is inserted into the rear sides of the left and right clamping blocks, a spring is sleeved on the outer side of the sliding rod, pinch blocks are inserted into both the left and right sides of the fixing block, and two clamping grooves are opened on the rear side of the treatment box.

[0008] Preferably, the separated sides of the rear parts of the clamping blocks on the left and right sides are fixedly connected to the pinching blocks, and the left and right ends of the sliding rod are installed on the inner wall of the sliding groove.

[0009] Preferably, the spring is installed between the left and right clamping blocks, the front side of the clamping block is inserted into the inner wall of the clamping slot, and the left and right clamping blocks are symmetrically arranged.

[0010] Preferably, both left and right sides of the installation frame are provided with installation grooves, and two rubber plates are inserted into the inner walls of the installation grooves, and the adjacent sides of the rubber plates on the left and right sides are fixedly connected to the filter element.

[0011] Preferably, a mounting block is installed on one side of the rubber plates on the upper and lower sides that are close to each other, and the mounting blocks on the upper and lower sides are slidably connected to the inner wall of the mounting groove.

[0012] Preferably, the connection blocks on the left and right sides are both plugged into the inner wall of the processing box, and the left end of the heat exchanger is installed on the right side of the processing box.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model provides a heat-exchanging device for recovering waste heat from flue gas in a small furnace, which squeezes two pinching blocks to disengage the card block from the card slot, thereby facilitating an operator to pull the fixed block backwards and disengage the two mounting frames on its front side from the treatment box, so that the operator can clean the filter element; after the mounting frame is reset, the elastic force of the spring is used to keep the card block stuck on the inner wall of the card slot, thereby facilitating subsequent disassembly and assembly by the operator and improving the cleaning efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional diagram of the utility model;

[0016] Figure 2 It is the right view of the utility model;

[0017] Figure 3 for Figure 2 Structural cross-section at AA in the middle;

[0018] Figure 4 This is a rear view of the utility model;

[0019] Figure 5 This is a schematic diagram of the structure of the connection block of the utility model;

[0020] Figure 6 This is a schematic diagram of the structure of the fixed block of the utility model;

[0021] Figure 7 for Figure 6 Structural cross-section at the middle BB;

[0022] Figure 8This is a schematic diagram of the installation frame structure of the utility model;

[0023] Figure 9 This is a schematic diagram of the installation block structure of the utility model.

[0024] In the figure: 1. Processing box; 2. Heat exchange box; 3. Bottom plate; 4. Filter element; 5. Heat exchanger; 6. Fixing block;

[0025] 7. Mounting frame; 8. Connecting block; 9. Card slot; 10. Pinch block; 11. Card block; 12. Slide bar; 13. Spring; 14. Slide slot; 15. Mounting slot; 16. Rubber sheet; 17. Mounting block. DETAILED DESCRIPTION

[0026] In order to make the purpose and technical solution of the utility model clearly and completely described, and the advantages more clearly understood, the embodiments of the utility model are further described in detail in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are part of the embodiments of the utility model, not all of the embodiments, and are only used to explain the embodiments of the utility model, and are not used to limit the embodiments of the utility model. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] Embodiment 1

[0028] See also Figures 1-9 The utility model provides a technical solution: a flue gas waste heat recovery and heat exchange device for a small furnace, comprising a bottom plate 3, a processing box 1 is installed on the left side of the top of the bottom plate 3, a heat exchange box 2 is installed on the right side of the top of the bottom plate 3, a heat exchanger 5 is installed on the inner wall of the heat exchange box 2, two installation frames 7 are plugged into the inner wall of the processing box 1, a filter element 4 is installed on the front side of the installation frame 7, and connecting blocks 8 are installed on the left and right sides of the installation frame 7; the connecting blocks 8 on the left and right sides are both plugged into the inner wall of the processing box 1, so that the connecting blocks 8 are driven to separate from the inner wall of the processing box 1 by pulling the installation frame 7 backwards, thereby facilitating the operator to clean the filter element 4, and the left end of the heat exchanger 5 is installed on the right side of the processing box 1, so as to facilitate the heat exchange treatment of the filtered waste flue gas.

[0029] When the filter element 4 is clogged with dust in the flue gas after long-term use, first pull the two installation frames 7 backwards, and drive the connecting blocks 8 on the left and right sides to move backwards, and at the same time let them separate from the treatment box 1, so as to remove the installation frame 7, which makes it convenient for the operator to clean the filter element 4. After completion, the operator resets the installation frame 7 and drives the connecting block 8 forward to be plugged into the inner wall of the treatment box 1, so as to facilitate the installation of the installation frame 7. At this time, the waste flue gas can be filtered and processed by the filter element 4 inside the treatment box 1, and then guided to the inside of the heat exchange box 2 through the heat exchanger 5, and heat exchange is carried out with the cold water inside the heat exchange box 2, thereby improving the heat exchange effect.

[0030] Example Two

[0031] On the basis of Example One, in order to facilitate the disassembly and assembly of the mounting frame 7 so that the operator can clean the filter element 4, fixing blocks 6 are installed at the rear sides of the upper and lower mounting frames 7. A chute 14 is formed at the front of the fixing block 6. Two clamping blocks 11 are slidably connected to the inner wall of the chute 14. A sliding rod 12 is inserted into the rear sides of the left and right clamping blocks 11. A spring 13 is sleeved on the outer side of the sliding rod 12. Pinch blocks 10 are inserted into both the left and right sides of the fixing block 6. Two clamping grooves 9 are formed at the rear side of the processing box 1; Fixed connections are made between the separated sides of the rear parts of the left and right clamping blocks 11 and the pinch blocks 10 respectively. Both the left and right ends of the sliding rod 12 are installed on the inner wall of the chute 14, so that by pinching the pinch blocks 10, the front sides of the clamping blocks 11 are driven to disengage from the clamping grooves 9, and the clamping blocks 11 are made to slide along the outer side of the sliding rod 12, thereby improving the stability of the clamping blocks 11 during movement; The spring 13 is installed between the left and right clamping blocks 11. The front side of the clamping block 11 is inserted into the inner wall of the clamping groove 9, and the left and right clamping blocks 11 are symmetrically arranged, so that the elastic force of the spring 13 is used to drive the clamping block 11 to reset, and its front side continues to be clamped in the inner wall of the clamping groove 9 for subsequent cleaning use by the operator.

[0032] When the filter element 4 needs to be cleaned, first, the two pinch blocks 10 are squeezed to drive the clamping blocks 11 to move towards each other along the inner wall of the chute 14, and at the same time, they are made to slide along the outer side of the sliding rod 12 and squeeze the spring 13. At this time, the front sides of the two clamping blocks 11 disengage from the inner wall of the clamping groove 9. Subsequently, the fixing block 6 is pulled backward to drive the two mounting frames 7 to move backward, so as to facilitate the operator to clean the filter element 4. After completion, the mounting frame 7 is reset, and at the same time, the front side of the clamping block 11 is inserted into the inner wall of the clamping groove 9, and the two pinch blocks 10 are released, so that the elastic force of the spring 13 is used to drive the clamping block 11 to slide along the inner wall of the chute 14 and reset, thereby making the front side of the clamping block 11 engage with the clamping groove 9, so as to facilitate the operator to install the mounting frame 7 and the processing box 1 together, and further facilitate the operator to disassemble and assemble the mounting frame 7 for cleaning the filter element 4.

[0033] Example Three

[0034] On the basis of Example Two, in order to facilitate the disassembly of the filter element 4 and reduce the replacement cost, mounting grooves 15 are formed on both the left and right sides of the mounting frame 7. Two rubber plates 16 are inserted into the inner walls of the mounting grooves 15. Fixed connections are made between the adjacent sides of the left and right rubber plates 16 and the filter element 4 respectively. Thus, by pulling the filter element 4 forward and driving the rubber plates 16 to slide forward along the inner walls of the mounting grooves 15, only the filter element 4 needs to be replaced during replacement, and there is no need to replace the entire filter plate, thereby reducing the replacement cost.

[0035] After long-term use, the filter element 4 fails to achieve an effective filtering effect. At this time, the installation frame 7 is pulled out backward, and then the filter element 4 is pulled forward, driving the rubber plates 16 on its left and right sides to slide forward along the inner wall of the installation groove 15, so that it disengages from the installation frame 7. Subsequently, the filter element 4 can be replaced. After completion, the operator inserts the filter element 4 backward into the front side of the inner wall of the installation frame 7 and drives the rubber plate 16 to be inserted into the inner wall of the installation groove 15, thus facilitating the operator to install the filter element 4.

[0036] Embodiment 4

[0037] On the basis of Embodiment 3, in order to improve the firmness of the installation between the filter element 4 and the installation frame 7, mounting blocks 17 are installed on the adjacent sides of the upper and lower rubber plates 16. The upper and lower mounting blocks 17 are both slidably connected to the inner wall of the installation groove 15. When installing the filter element 4, the mounting blocks 17 are driven to be inserted into the inner wall of the installation groove 15, and the upper and lower mounting blocks 17 are symmetrically arranged, thereby improving the firmness of the installation between the filter element 4 and the installation frame 7.

[0038] When installing the filter element 4, since the mounting blocks 17 are installed on the adjacent sides of the upper and lower rubber plates 16, when the rubber plates 16 are inserted into the inner wall of the installation groove 15, the mounting blocks 17 are driven to slide along the inner wall of the installation groove 15, and the upper and lower mounting blocks 17 are driven to be closely attached to the inner wall of the installation groove 15 by using the rubber plates 16, thereby improving the firmness of the installation between the filter element 4 and the installation frame 7.

[0039] During actual use, after long-term use, when the filter element 4 is blocked by dust in the flue gas, first pull the two installation frames 7 backward, driving the connecting blocks 8 on their left and right sides to move backward, and at the same time disengaging them from the treatment box 1, so as to remove the installation frame 7, thus facilitating the operator to clean the filter element 4. After completion, the operator resets the installation frame 7 and at the same time drives the connecting block 8 to be inserted forward into the inner wall of the treatment box 1, thus facilitating the installation of the installation frame 7. At this time, the waste flue gas can be filtered through the filter element 4 inside the treatment box 1 and then guided to the inside of the heat exchange box 2 through the heat exchanger 5 and exchange heat with the cold water inside the heat exchange box 2, thereby improving the heat exchange effect.

[0040] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A flue gas waste heat recovery heat exchange device for a small furnace, comprising a bottom plate (3). A treatment box (1) is installed on the left side of the top of the bottom plate (3), and a heat exchange box (2) is installed on the right side of the top of the bottom plate (3). A heat exchanger (5) is installed on the inner wall of the heat exchange box (2), characterized in that: Two mounting frames (7) are inserted into the inner wall of the processing box (1). A filter element (4) is installed on the front side of the mounting frame (7). Connecting blocks (8) are installed on both the left and right sides of the mounting frame (7).

2. The flue gas waste heat recovery heat exchange device for a small furnace according to claim 1, wherein: Fixing blocks (6) are installed on the rear sides of the upper and lower mounting frames (7). A sliding groove (14) is formed in the front part of the fixing block (6). Two clamping blocks (11) are slidably connected to the inner wall of the sliding groove (14). A sliding rod (12) is inserted into the rear sides of the left and right clamping blocks (11). A spring (13) is sleeved on the outer side of the sliding rod (12). Pinch blocks (10) are inserted into both the left and right sides of the fixing block (6). Two card slots (9) are formed in the rear side of the processing box (1).

3. The flue gas waste heat recovery heat exchange device for a small furnace according to claim 2, wherein: Fixed connections are established between the separated sides of the rear parts of the left and right clamping blocks (11) and the pinch blocks (10). Both the left and right ends of the sliding rod (12) are installed on the inner wall of the sliding groove (14).

4. A flue gas waste heat recovery heat exchange device for a small furnace, characterized in that: The spring (13) is installed between the left and right clamping blocks (11). The front side of the clamping block (11) is inserted into the inner wall of the card slot (9), and the left and right clamping blocks (11) are symmetrically arranged.

5. The flue gas waste heat recovery heat exchange device for a small furnace according to claim 1, characterized in that: Mounting grooves (15) are formed on both the left and right sides of the mounting frame (7). Two rubber plates (16) are inserted into the inner wall of the mounting groove (15). Fixed connections are established between the closer sides of the left and right rubber plates (16) and the filter element (4).

6. The flue gas waste heat recovery heat exchange device for a small furnace according to claim 5, characterized in that: Mounting blocks (17) are installed on the closer sides of the upper and lower rubber plates (16). The upper and lower mounting blocks (17) are slidably connected to the inner wall of the mounting groove (15).

7. The flue gas waste heat recovery heat exchange device for a small furnace according to claim 1, characterized in that: Both the left and right connecting blocks (8) are inserted into the inner wall of the processing box (1). The left end of the heat exchanger (5) is installed on the right side of the processing box (1).

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