Catalytic combustion device with heat recovery function

Abstract

The utility model discloses a catalytic combustion equipment with heat recovery function belongs to catalytic combustion equipment field, including catalytic combustion box, the inside of catalytic combustion box is provided with first heat recovery subassembly, the front side fixedly connected with air inlet pipe of catalytic combustion box, the top fixedly connected with air outlet pipe of catalytic combustion box, the outer wall of air outlet pipe is provided with second heat recovery subassembly, through the synergies of first heat recovery subassembly and second heat recovery subassembly, the heat in catalytic combustion box and air outlet pipe is recovered respectively, has improved heat recovery efficiency significantly, specifically, the design of spiral heat conduction sheet and heat pipe in first heat recovery subassembly, combines the structure of multiple drain grooves and communication groove, has realized the efficient transmission and absorption of heat, and second heat recovery subassembly recycles the residual heat in air outlet pipe through the coil, further reduces the waste of heat.

Description

Technical Field

[0001] This utility model belongs to the technical field of catalytic combustion equipment, specifically relating to a catalytic combustion equipment with heat recovery function. Background Technology

[0002] With the acceleration of industrialization, the problem of waste gas treatment has received increasing attention. Catalytic combustion technology is widely used due to its high efficiency and environmental friendliness. However, the heat generated by catalytic combustion equipment during operation is often not effectively utilized, resulting in serious energy waste.

[0003] According to the published patent CN216521721U, a catalytic combustion device with heat recovery function includes a fixed frame, a combustion chamber mounted on the top of the fixed frame, a first exhaust fan connected to the outside of the combustion chamber, an inlet pipe connected to the air inlet end of the first exhaust fan, an outlet pipe mounted on the top of the combustion chamber, a second exhaust fan connected to the other end of the outlet pipe, a connecting pipe connected to the air outlet end of the second exhaust fan, a recovery box connected to the air outlet end of the connecting pipe, and the recovery box mounted on the top of the fixed frame. A water tank is mounted on the top of the fixed frame near the recovery box, and a liquid outlet pipe is connected to the bottom of the water tank. This catalytic combustion device with heat recovery function can achieve better heat recovery, effectively improve the practicality of the overall device, and bring better application prospects.

[0004] However, there are still some shortcomings. For example, although the patent describes the use of the solution inside the water tank and continuous curved pipes for heat exchange, this heat exchange structure is relatively simple and cannot fully contact the heat generated after the exhaust gas is burned, making it difficult to fully recover the heat generated during the combustion process. At the same time, it only collects heat for a specific area and does not form a comprehensive heat recovery network, resulting in limited heat recovery effect. Utility Model Content

[0005] The purpose of this invention is to provide a catalytic combustion device with heat recovery function to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a catalytic combustion device with heat recovery function, comprising a catalytic combustion chamber, a first heat recovery component disposed inside the catalytic combustion chamber, an inlet pipe fixedly connected to the front side of the catalytic combustion chamber, an outlet pipe fixedly connected to the top of the catalytic combustion chamber, a second heat recovery component disposed on the outer wall of the outlet pipe, and a heat preservation box disposed on the side near the catalytic combustion chamber.

[0007] The first heat recovery assembly includes a fixed ring, which is fixedly connected to one side of the catalytic combustion chamber. A drain pipe is fixedly connected to the inner wall of the fixed ring. A water pump is fixedly connected to the bottom of the drain pipe. A water inlet pipe is fixedly connected to the outer wall of the water pump. A diversion pipe is fixedly connected to the top of the drain pipe. A first water inlet pipe is fixedly connected to the outer wall of the diversion pipe. The catalytic combustion chamber has a drain channel and a connecting groove inside. The first water inlet pipe extends into the interior of the drain channel. A first water outlet pipe is connected to the interior of the drain channel. There are multiple drain channels, which are interconnected through the connecting groove. A spiral heat-conducting plate is fixedly connected to the interior of the drain channel. A heat-conducting pipe is fixedly connected to the outer side of the spiral heat-conducting plate. Both the spiral heat-conducting plate and the heat-conducting pipe have drain grooves inside.

[0008] In a preferred embodiment, there are multiple drainage channels and multiple connecting channels, and the drainage channels are circular in shape.

[0009] In a preferred embodiment, the second heat recovery assembly includes a second water inlet pipe, one end of which is fixedly connected to the outer wall of the diversion pipe, and a coil is fixedly connected to one end of the second water inlet pipe. The coil is sleeved on the outer wall of the air outlet pipe, and a second water outlet pipe is fixedly connected to the lower outer wall of the coil. The second water outlet pipe extends into the interior of the insulation box.

[0010] In a preferred embodiment, the end of the first water outlet pipe extends into the interior of the insulation box, and a water guide pipe is fixedly connected to the front side of the insulation box, with a valve communicating with the interior of the water guide pipe.

[0011] In a preferred embodiment, four support legs are fixedly connected to the four corners of the bottom of the catalytic combustion chamber.

[0012] In a preferred embodiment, an air pump is fixedly connected to the top of the air outlet pipe, and an outlet pipe is fixedly installed on the top of the air pump.

[0013] In a preferred embodiment, the outlet pipe is internally connected to a solenoid valve, which is used to control the flow rate of the gas discharged.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This catalytic combustion device with heat recovery function recovers heat from the inside of the catalytic combustion chamber and the outlet pipe through the synergistic effect of the first heat recovery component and the second heat recovery component, which significantly improves the heat recovery efficiency. Specifically, the spiral heat-conducting plate and heat-conducting pipe design in the first heat recovery component, combined with the structure of multiple drainage grooves and connecting grooves, realizes efficient heat transfer and absorption.

[0016] This catalytic combustion device with heat recovery function further reduces heat waste by using a second heat recovery component to recover residual heat in the gas outlet pipe through a coil. Attached Figure Description

[0017] Figure 1 This is a front view of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the catalytic combustion chamber in this utility model;

[0019] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle;

[0020] Figure 4 This is a schematic diagram of the structure of the second heat recovery component in this utility model.

[0021] In the diagram: 1. Catalytic combustion chamber; 2. First heat recovery assembly; 3. Gas outlet pipe; 4. Second heat recovery assembly; 5. Gas pump; 6. Outlet pipe; 7. Solenoid valve; 8. Insulation box; 9. Water pipe; 10. Gas inlet pipe; 21. Fixing ring; 22. Drain pipe; 23. Water pump; 24. Water inlet pipe; 25. Diverter pipe; 26. First water inlet pipe; 27. First water outlet pipe; 28. Drainage channel; 29. ​​Spiral heat conduction plate; 210. Heat conduction pipe; 211. Drainage trough; 212. Connecting trough; 41. Coil; 42. Second water inlet pipe; 43. Second water outlet pipe. Detailed Implementation

[0022] The present invention will be further described below with reference to the embodiments.

[0023] The following embodiments are used to illustrate the present invention, but should not be used to limit the scope of protection of the present invention. The conditions in the embodiments can be further adjusted according to specific conditions, and simple improvements to the method of the present invention under the premise of the concept of the present invention are all within the scope of protection claimed by the present invention.

[0024] Please see Figure 1-4 This utility model provides a catalytic combustion device with heat recovery function. The specific embodiments of this utility model will be described in detail below with reference to the specific reference numerals of the various components in the accompanying drawings.

[0025] like Figure 1As shown, the catalytic combustion device of this utility model includes a catalytic combustion chamber 1, a first heat recovery component 2, a second heat recovery component 4, and an insulation box 8. The catalytic combustion chamber 1, as the core component, is used to complete the catalytic combustion process of waste gas. An air inlet pipe 10 is fixedly connected to its front side, and an air outlet pipe 3 is fixedly connected to its top, which are used to introduce the gas to be treated and to discharge the gas after combustion, respectively. Four support legs are fixedly connected to the four corners of the bottom of the catalytic combustion chamber 1 to ensure that the equipment remains stable during operation. In addition, an insulation box 8 is provided on one side of the catalytic combustion chamber 1 to store the heat recovered by the first heat recovery component 2 and the second heat recovery component 4. A water guide pipe 9 is fixedly connected to the front side of the insulation box 8, and a valve is connected inside the water guide pipe 9 to control the output of hot water.

[0026] The specific structure of the first heat recovery component 2 is as follows: Figure 2 and Figure 3 As shown, the catalytic combustion chamber 1 includes a fixing ring 21, a drain pipe 22, a water pump 23, a water inlet pipe 24, a branch pipe 25, a first water inlet pipe 26, a first water outlet pipe 27, a drainage channel 28, a connecting groove 212, a spiral heat-conducting plate 29, a heat-conducting pipe 210, and a drainage trough 211. The fixing ring 21 is fixedly connected to one side of the catalytic combustion chamber 1, and its inner wall is fixedly connected to the drain pipe 22. The bottom of the drain pipe 22 is fixedly connected to the water pump 23, and the outer wall of the water pump 23 is fixedly connected to the water inlet pipe 24 for introducing the cooling medium from the outside into the drain pipe 22. The top of the drain pipe 22 is fixedly connected to the branch pipe 25, and the outer wall of the branch pipe 25 is fixedly connected to multiple first water inlet pipes 26. These first water inlet pipes 26 extend into the drainage channel 28 inside the catalytic combustion chamber 1. The interior of the 1 has multiple drainage channels 28 and connecting grooves 212. The multiple drainage channels 28 are interconnected through the connecting grooves 212, so that the cooling medium can be evenly distributed between the channels. A spiral heat-conducting plate 29 is fixedly connected inside each drainage channel 28, and a heat-conducting pipe 210 is fixedly connected to the outside of the spiral heat-conducting plate 29. Together, they form a high-efficiency heat exchange structure. Multiple circular drainage grooves 211 are opened inside both the spiral heat-conducting plate 29 and the heat-conducting pipe 210. These drainage grooves 211 significantly increase the contact area between the cooling medium and the heat, thereby improving the heat exchange efficiency. The end of the drainage channel 28 is connected to a first water outlet pipe 27. The end of the first water outlet pipe 27 extends into the interior of the heat preservation box 8, and the absorbed heat is transported to the heat preservation box 8 for storage.

[0027] The specific structure of the second heat recovery component 4 is as follows: Figure 4As shown, the device includes a second inlet pipe 42, a coil 41, and a second outlet pipe 43. One end of the second inlet pipe 42 is fixedly connected to the outer wall of the diversion pipe 25, and the other end is fixedly connected to the coil 41. The coil 41 is sleeved on the outer wall of the outlet pipe 3 to recover the residual heat in the outlet pipe 3. The lower outer wall of the coil 41 is fixedly connected to the second outlet pipe 43. The end of the second outlet pipe 43 extends into the interior of the insulation box 8 to transport the recovered heat to the insulation box 8 for storage. Through the above design, the second heat recovery component 4 achieves efficient recovery of residual heat in the outlet pipe 3.

[0028] A gas pump 5 is fixedly connected to the top of the catalytic combustion chamber 1. An outlet pipe 6 is fixedly installed on the top of the gas pump 5. An electromagnetic valve 7 is connected inside the outlet pipe 6. The electromagnetic valve 7 is used to precisely control the flow rate of the gas discharge. By adjusting the electromagnetic valve 7, the controllability of the gas discharge process can be ensured, and efficiency loss caused by excessive or insufficient flow rate can be avoided.

[0029] The operating principle of this utility model is as follows: First, the gas to be treated enters the catalytic combustion chamber 1 through the inlet pipe 10. The catalytic combustion reaction is completed in the catalytic combustion chamber 1 to generate high-temperature gas. The high-temperature gas releases a large amount of heat inside the catalytic combustion chamber 1. At this time, the first heat recovery component 2 starts to work, and the water pump 23 starts to introduce the cooling medium into the drain pipe 22 through the water inlet pipe 24, and distributes it to multiple first water inlet pipes 26 through the diversion pipe 25. The first water inlet pipe 26 introduces the cooling medium into the drain channel 28 inside the catalytic combustion chamber 1. When the cooling medium flows in the drain channel 28, it absorbs the heat released during the catalytic combustion process through the spiral heat-conducting plate 29 and the heat-conducting pipe 210. After absorbing the heat, the temperature of the cooling medium rises, and then it flows into the heat preservation box 8 for storage through the first water outlet pipe 27.

[0030] Meanwhile, the high-temperature gas after catalytic combustion is discharged through the exhaust pipe 3. Since the gas temperature is still high, the coil 41 on the outer wall of the exhaust pipe 3 starts to work. The cooling medium enters the coil 41 through the second water inlet pipe 42, absorbs the residual heat in the exhaust pipe 3, and then flows into the insulation box 8 through the second water outlet pipe 43 for storage. Through the synergistic effect of the first heat recovery component 2 and the second heat recovery component 4, the heat generated during the catalytic combustion process is efficiently recovered and stored in the insulation box 8.

[0031] The hot water in the insulation box 8 can be output through the water pipe 9 for external use. The valve on the water pipe 9 is used to control the flow rate and output time of the hot water to realize the reuse of heat. For example, in industrial scenarios, the hot water in the insulation box 8 can be used for heating, cleaning or other processes that require heat energy, thereby significantly improving energy efficiency.

[0032] In summary, this invention achieves efficient heat recovery and storage during catalytic combustion through the synergistic effect of the first heat recovery component 2 and the second heat recovery component 4. The design of the spiral heat-conducting plate 29 and the heat-conducting pipe 210, combined with the structure of multiple drainage grooves 211 and connecting grooves 212, improves heat exchange efficiency. The design of the coil 41 further reduces heat waste. The recovered heat is stored in the insulation box 8, and the hot water output is controlled by the valve on the water pipe 9. This invention not only solves the problem of heat waste in the prior art, but also meets the requirements of green environmental protection and has important practical application value.

[0033] 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 of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A catalytic combustion device with heat recovery function, comprising a catalytic combustion chamber (1), characterized in that: The catalytic combustion chamber (1) is equipped with a first heat recovery component (2), an air inlet pipe (10) is fixedly connected to the front side of the catalytic combustion chamber (1), an air outlet pipe (3) is fixedly connected to the top of the catalytic combustion chamber (1), a second heat recovery component (4) is provided on the outer wall of the air outlet pipe (3), and an insulation box (8) is provided on the side close to the catalytic combustion chamber (1). The first heat recovery assembly (2) includes a fixing ring (21), which is fixedly connected to one side of the catalytic combustion chamber (1). A drain pipe (22) is fixedly connected to the inner wall of the fixing ring (21). A water pump (23) is fixedly connected to the bottom of the drain pipe (22). A water inlet pipe (24) is fixedly connected to the outer wall of the water pump (23). A diversion pipe (25) is fixedly connected to the top of the drain pipe (22). A first water inlet pipe (26) is fixedly connected to the outer wall of the diversion pipe (25). A drainage passage is provided inside the catalytic combustion chamber (1). The first water inlet pipe (26) extends into the interior of the drainage channel (28), and the interior of the drainage channel (28) is connected to the first water outlet pipe (27). There are multiple drainage channels (28), and the multiple drainage channels (28) are interconnected through the connecting groove (212). A spiral heat-conducting plate (29) is fixedly connected inside the drainage channel (28), and a heat-conducting pipe (210) is fixedly connected to the outside of the spiral heat-conducting plate (29). Drainage grooves (211) are opened inside both the spiral heat-conducting plate (29) and the heat-conducting pipe (210).

2. The catalytic combustion device with heat recovery function according to claim 1, characterized in that: There are multiple drainage channels (211) and multiple connecting channels (212), and the drainage channel (211) is circular in shape.

3. A catalytic combustion device with heat recovery function according to claim 1, characterized in that: The second heat recovery component (4) includes a second water inlet pipe (42), one end of which is fixedly connected to the outer wall of the diversion pipe (25), and one end of which is fixedly connected to a coil (41). The coil (41) is sleeved on the outer wall of the air outlet pipe (3), and the lower outer wall of the coil (41) is fixedly connected to a second water outlet pipe (43). The second water outlet pipe (43) extends into the interior of the heat preservation box (8).

4. A catalytic combustion device with heat recovery function according to claim 1, characterized in that: The end of the first water outlet pipe (27) extends into the interior of the insulation box (8), and a water guide pipe (9) is fixedly connected to the front side of the insulation box (8), and a valve is connected inside the water guide pipe (9).

5. A catalytic combustion device with heat recovery function according to claim 1, characterized in that: The bottom of the catalytic combustion chamber (1) is fixedly connected to four corners with four support legs.

6. A catalytic combustion device with heat recovery function according to claim 1, characterized in that: An air pump (5) is fixedly connected to the top of the air outlet pipe (3), and an outlet pipe (6) is fixedly installed on the top of the air pump (5).

7. A catalytic combustion device with heat recovery function according to claim 6, characterized in that: The outlet pipe (6) is internally connected to a solenoid valve (7), which is used to control the flow rate of the gas discharged.

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