Air volume adjustable high-temperature furnace exhaust structure

Abstract

The utility model discloses an air volume adjustable high temperature furnace exhaust structure, which comprises a heat energy recovery box, the inner wall of the heat energy recovery box is fixedly connected with a primary heat exchanger, the front side of the primary heat exchanger is fixedly connected with a flue gas pipe, and one end of the flue gas pipe far away from the primary heat exchanger is fixedly connected with a secondary heat exchanger. After entering the heat energy recovery box, the exhaust gas firstly contacts with the primary heat exchanger for heat exchange, then enters the flue gas pipe and sequentially passes through the plurality of secondary heat exchangers, and the secondary heat exchangers exchange heat with the exhaust gas. The exhaust gas flows through the one-way pipe, enters the purification box and makes contact with the liquid in the purification box, floating pollutants in the exhaust gas are adsorbed, heat exchange is conducted between the exhaust gas and the liquid when the exhaust gas makes contact with the liquid, heat energy is absorbed through the three-stage heat exchanger, and therefore the utilization rate of the heat energy is increased.

Description

Technical Field

[0001] This utility model relates to the field of high-temperature furnace technology, specifically to a high-temperature furnace exhaust structure with adjustable air volume. Background Technology

[0002] A high-temperature furnace is a device that provides a high-temperature environment. It is mainly used for chemical reactions, heat treatment of materials, ceramic production and other processes at high temperatures. Its principle is to convert electrical energy into heat energy through electric heating elements and transfer it to the object being heated so that it reaches the required temperature. High-temperature furnaces come in various types depending on the environment and purpose of use, such as box furnaces, tube furnaces, atmosphere furnaces, muffle furnaces, vacuum furnaces, etc., and are applied in fields such as materials science, chemistry, and physics.

[0003] After the object is heated in the high-temperature furnace, the generated gas is discharged to the outside through the exhaust structure. However, the discharged gas still contains a lot of heat. Directly discharging it into the air will not only cause environmental pollution, but also result in low heat recovery efficiency, thus wasting resources. Utility Model Content

[0004] The purpose of this invention is to provide a high-temperature furnace exhaust structure with adjustable air volume to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-temperature furnace exhaust structure with adjustable air volume, comprising a heat recovery box, a primary heat exchanger fixedly connected to the inner wall of the heat recovery box, a flue gas pipe fixedly connected to the front of the primary heat exchanger, a secondary heat exchanger fixedly connected to the end of the flue gas pipe away from the primary heat exchanger, a one-way pipe fixedly connected to the side of the secondary heat exchanger away from the flue gas pipe, a purification box fixedly connected to the surface of the one-way pipe, a tertiary heat exchanger disposed inside the purification box, and an air outlet opened on the side of the purification box away from the one-way pipe.

[0006] As a further preferred embodiment of this technical solution, the number of secondary heat exchangers is set to multiple, and the multiple secondary heat exchangers are connected by conduits. The one-way conduits are L-shaped, and the tertiary heat exchangers are located at the bottom end of the one-way conduits.

[0007] As a further preferred embodiment of this technical solution, an exhaust pipe is fixedly connected to the side of the heat recovery box near the primary heat exchanger, a dustproof net is fixedly connected to the inner wall of the exhaust pipe, an upper flange is fixedly connected to the bottom of the heat recovery box, and a connecting bolt is threadedly connected to the middle of the upper flange.

[0008] As a further preferred embodiment of this technical solution, the exhaust pipe is flared in shape, and the upper flange has multiple mounting holes in the middle, with the number of connecting bolts corresponding to the number of mounting holes.

[0009] As a further preferred embodiment of this technical solution, the connecting bolt is threaded with a lower flange, the bottom end of the lower flange is fixedly connected to an exhaust duct, the bottom end of the exhaust duct is fixedly connected to a high-temperature furnace, the inner wall of the exhaust duct is fixedly connected to a support plate, and the top end of the support plate is provided with a filter screen.

[0010] As a further preferred embodiment of this technical solution, a cross-shaped mounting plate is fixedly connected to the inner wall of the exhaust channel, a rotary motor is fixedly connected to the bottom end of the cross-shaped mounting plate, an adjusting plate is fixedly sleeved on the output shaft of the rotary motor, an adjusting hole is provided in the middle of the adjusting plate, and an exhaust plate is fixedly connected to the inner wall of the exhaust channel, with an exhaust hole provided in the middle of the exhaust plate.

[0011] As a further preferred embodiment of this technical solution, the cross mounting plate is located above the filter screen, the number of adjustment holes is provided in multiple ways, the number of exhaust holes corresponds to the number of adjustment holes, and the exhaust plate and the adjustment plate are in contact.

[0012] This utility model provides a high-temperature furnace exhaust structure with adjustable air volume, which has the following beneficial effects:

[0013] (1) In this utility model, after the exhaust gas enters the heat recovery box, it first contacts the primary heat exchanger and exchanges heat. Then the exhaust gas enters the flue gas pipe and passes through several secondary heat exchangers in sequence. The secondary heat exchangers exchange heat with the exhaust gas. The exhaust gas then flows through a one-way pipe into the purification box and contacts the liquid in the purification box, adsorbing the floating pollutants in the exhaust gas. When the exhaust gas contacts the liquid, it exchanges heat with the liquid and absorbs the heat energy through a tertiary heat exchanger, thereby recovering and utilizing the waste heat of the exhaust gas and increasing the utilization rate of heat energy.

[0014] (2) In this utility model, the exhaust gas enters the exhaust channel and passes through the filter screen, where particulate matter and dust are blocked. The filtered exhaust gas passes through the exhaust plate and the regulating plate and flows through the heat recovery box, and finally exits from the exhaust pipe. When it is necessary to adjust the exhaust air volume, the rotary motor is started to make the regulating plate rotate. As its angle changes, the gap between the regulating hole and the exhaust hole changes accordingly, thereby realizing the adjustment of the exhaust air volume. Attached Figure Description

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

[0016] Figure 2 This is a schematic cross-sectional view of the heat recovery box of this utility model;

[0017] Figure 3 This is a schematic diagram of the internal structure of the lower flange and exhaust channel of this utility model;

[0018] Figure 4 This is a schematic diagram of the cross-sectional structure of the exhaust channel of this utility model.

[0019] In the diagram: 1. Heat recovery box; 2. Primary heat exchanger; 3. Flue gas pipe; 4. Secondary heat exchanger; 5. One-way pipe; 6. Purification box; 7. Tertiary heat exchanger; 8. Air outlet; 9. Exhaust pipe; 10. Dustproof net; 11. Upper flange; 12. Connecting bolt; 13. Lower flange; 14. Exhaust duct; 15. High-temperature furnace; 16. Support plate; 17. Filter screen; 18. Cross mounting plate; 19. Rotary motor; 20. Adjusting plate; 21. Adjusting hole; 22. Exhaust plate; 23. Exhaust hole. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0021] This utility model provides a technical solution: such as Figure 1 and Figure 4 As shown in this embodiment, a high-temperature furnace exhaust structure with adjustable air volume includes a heat recovery box 1. A primary heat exchanger 2 is fixedly connected to the inner wall of the heat recovery box 1. A flue gas pipe 3 is fixedly connected to the front of the primary heat exchanger 2. A secondary heat exchanger 4 is fixedly connected to the end of the flue gas pipe 3 away from the primary heat exchanger 2. A one-way pipe 5 is fixedly connected to the side of the secondary heat exchanger 4 away from the flue gas pipe 3. A purification box 6 is fixedly connected to the surface of the one-way pipe 5. A tertiary heat exchanger 7 is provided inside the purification box 6. An air outlet 8 is opened on the side of the purification box 6 away from the one-way pipe 5.

[0022] After the exhaust gas enters the heat recovery box 1, it first contacts and exchanges heat with the primary heat exchanger 2. Then, the exhaust gas enters the flue gas pipe 3 and passes through several secondary heat exchangers 4 in sequence. The secondary heat exchangers 4 exchange heat with the exhaust gas. The exhaust gas then flows through the one-way pipe 5 into the purification box 6 and contacts the liquid in the purification box 6. The floating pollutants in the exhaust gas are adsorbed, and heat is exchanged with the liquid when the exhaust gas comes into contact with the liquid. The heat energy is absorbed by the tertiary heat exchanger 7, thereby recovering and utilizing the waste heat of the exhaust gas and increasing the utilization rate of heat energy.

[0023] There are multiple secondary heat exchangers 4, which are connected by conduits. The one-way tube 5 is L-shaped, and the tertiary heat exchanger 7 is located at the bottom of the one-way tube 5.

[0024] A vent pipe 9 is fixedly connected to the side of the heat recovery box 1 near the first-stage heat exchanger 2. A dustproof net 10 is fixedly connected to the inner wall of the vent pipe 9. An upper flange 11 is fixedly connected to the bottom of the heat recovery box 1. A connecting bolt 12 is threadedly connected to the middle of the upper flange 11.

[0025] The exhaust pipe 9 is flared, and the upper flange 11 has multiple mounting holes in the middle. The number of connecting bolts 12 corresponds to the number of mounting holes.

[0026] The connecting bolt 12 is threaded with a lower flange 13. The bottom end of the lower flange 13 is fixedly connected to an exhaust duct 14. The bottom end of the exhaust duct 14 is fixedly connected to a high-temperature furnace 15. The inner wall of the exhaust duct 14 is fixedly connected to a support plate 16. The top end of the support plate 16 is provided with a filter screen 17.

[0027] A cross-shaped mounting plate 18 is fixedly connected to the inner wall of the exhaust duct 14. A rotary motor 19 is fixedly connected to the bottom end of the cross-shaped mounting plate 18. An adjusting plate 20 is fixedly sleeved on the output shaft of the rotary motor 19. An adjusting hole 21 is opened in the middle of the adjusting plate 20. An exhaust plate 22 is fixedly connected to the inner wall of the exhaust duct 14. An exhaust hole 23 is opened in the middle of the exhaust plate 22.

[0028] The exhaust gas enters the exhaust duct 14 and passes through the filter screen 17, where particulate matter and dust are trapped. The filtered exhaust gas then passes through the exhaust plate 22 and the regulating plate 20 and flows through the heat recovery box 1 before finally being discharged from the exhaust pipe 9. The dustproof net 10 prevents external dust and foreign objects from entering. When it is necessary to adjust the exhaust air volume, the rotary motor 19 is started, causing the regulating plate 20 to rotate. As its angle changes, the gap between the regulating hole 21 and the exhaust hole 23 changes accordingly, thereby adjusting the exhaust air volume. A flow sensor is installed in the exhaust pipe 9 to detect the exhaust air volume, allowing for appropriate adjustment of the angle of the regulating plate 20 as required.

[0029] The cross mounting plate 18 is located above the filter screen 17. Multiple adjustment holes 21 are provided. The number of exhaust holes 23 corresponds to the number of adjustment holes 21. The exhaust plate 22 and the adjustment plate 20 are in contact.

[0030] This utility model provides a high-temperature furnace exhaust structure with adjustable air volume, and its specific working principle is as follows:

[0031] During operation, the high-temperature furnace 15 operates, and the exhaust gas enters the exhaust duct 14. The exhaust gas passes through the filter screen 17, where particulate matter and dust are trapped. The filtered exhaust gas then passes through the exhaust plate 22 and the regulating plate 20 and enters the heat recovery box 1. It first contacts the primary heat exchanger 2 for heat exchange. Next, the exhaust gas enters the flue gas pipe 3 and passes through several secondary heat exchangers 4 in sequence. The secondary heat exchangers 4 exchange heat with the exhaust gas. The exhaust gas then flows through the one-way pipe 5 into the purification box 6 and is then purified. The liquid contact in step 6 adsorbs floating pollutants in the exhaust gas and exchanges heat with the liquid when the exhaust gas comes into contact with the liquid. The heat energy is absorbed by the three-stage heat exchanger 7, thereby recovering and utilizing the waste heat of the exhaust gas. The exhaust gas enters the exhaust pipe 9 from the outlet 8 and is discharged to the outside. When it is necessary to adjust the exhaust air volume, the rotary motor 19 is started to rotate the regulating plate 20. As its angle changes, the gap between the regulating hole 21 and the exhaust hole 23 changes accordingly, thereby controlling the exhaust air volume.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-temperature furnace exhaust structure with adjustable air volume, comprising a heat recovery box (1), characterized in that: A primary heat exchanger (2) is fixedly connected to the inner wall of the heat recovery box (1). A flue gas pipe (3) is fixedly connected to the front of the primary heat exchanger (2). A secondary heat exchanger (4) is fixedly connected to the end of the flue gas pipe (3) away from the primary heat exchanger (2). A one-way pipe (5) is fixedly connected to the side of the secondary heat exchanger (4) away from the flue gas pipe (3). A purification box (6) is fixedly connected to the surface of the one-way pipe (5). A tertiary heat exchanger (7) is installed inside the purification box (6). An air outlet (8) is opened on the side of the purification box (6) away from the one-way pipe (5).

2. The high-temperature furnace exhaust structure with adjustable air volume according to claim 1, characterized in that: The number of the secondary heat exchangers (4) is set to multiple, and the multiple secondary heat exchangers (4) are connected by conduits. The one-way pipe (5) is L-shaped, and the tertiary heat exchanger (7) is located at the bottom end of the one-way pipe (5).

3. The high-temperature furnace exhaust structure with adjustable air volume according to claim 1, characterized in that: The heat recovery box (1) is fixedly connected to an exhaust pipe (9) on the side near the primary heat exchanger (2). A dustproof net (10) is fixedly connected to the inner wall of the exhaust pipe (9). An upper flange (11) is fixedly connected to the bottom of the heat recovery box (1). A connecting bolt (12) is threadedly connected to the middle of the upper flange (11).

4. The high-temperature furnace exhaust structure with adjustable air volume according to claim 3, characterized in that: The exhaust pipe (9) is horn-shaped, and the upper flange (11) has multiple mounting holes in the middle. The number of connecting bolts (12) corresponds to the number of mounting holes.

5. The high-temperature furnace exhaust structure with adjustable air volume according to claim 3, characterized in that: The connecting bolt (12) is threadedly connected to a lower flange (13). The bottom end of the lower flange (13) is fixedly connected to an exhaust channel (14). The bottom end of the exhaust channel (14) is fixedly connected to a high-temperature furnace (15). The inner wall of the exhaust channel (14) is fixedly connected to a support plate (16). The top end of the support plate (16) is provided with a filter screen (17).

6. The high-temperature furnace exhaust structure with adjustable air volume according to claim 5, characterized in that: A cross-shaped mounting plate (18) is fixedly connected to the inner wall of the exhaust channel (14). A rotary motor (19) is fixedly connected to the bottom end of the cross-shaped mounting plate (18). An adjusting plate (20) is fixedly sleeved on the output shaft of the rotary motor (19). An adjusting hole (21) is provided in the middle of the adjusting plate (20). An exhaust plate (22) is fixedly connected to the inner wall of the exhaust channel (14). An exhaust hole (23) is provided in the middle of the exhaust plate (22).

7. The high-temperature furnace exhaust structure with adjustable air volume according to claim 6, characterized in that: The cross mounting plate (18) is located above the filter screen (17), and there are multiple adjustment holes (21). The number of exhaust holes (23) corresponds to the number of adjustment holes (21), and the exhaust plate (22) and the adjustment plate (20) are in contact.

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