Waste heat utilization device of catalytic combustion furnace

Abstract

The utility model discloses a catalytic combustion furnace waste heat utilization device, which relates to the technical field of waste heat recovery, and comprises a catalytic furnace main body, a heat exchange cover, a gas pipe, a water pipe and a guide plate, a base is welded at the bottom of the catalytic furnace main body, a hearth is arranged at the top of the catalytic furnace main body, and a furnace door is arranged on one side of the hearth. A heat exchange cover is installed at the top of the hearth, the bottom of the heat exchange cover communicates with the interior of the hearth, an air blower is arranged on one side of the top of the hearth, waste gas can be blown into a gas pipe under the action of the air blower, then the waste gas is exhausted into the furnace through the other end of the gas pipe for combustion, and high-temperature flue gas generated by combustion can rise into the heat exchange cover. And the gas pipe in the heat exchange cover can be heated while the gas pipe is heated, so that the temperature of the waste gas before entering the furnace is increased, the high temperature in the furnace can be kept through combustion waste heat of the catalytic furnace, and the waste heat recovery temperature is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of waste heat recovery, in particular to a waste heat utilization device for a catalytic combustion furnace. Background Art

[0002] A catalytic combustion furnace is a device that uses a catalyst to accelerate the oxidation decomposition process of combustible substances in organic waste gas, thereby purifying the waste gas. After retrieval, a patent with the Chinese patent publication number CN220582441U discloses a waste heat utilization device for a catalytic combustion furnace waste gas. Although the waste gas of the catalytic combustion furnace is subjected to heat energy recovery through a waste heat recovery device and can supply domestic hot water for the workshop after passing through a hot water storage device, and an air source heat pump can provide chilled water for the office building air conditioning, during the combustion process of the catalytic furnace, a blower is required to blow external waste gas into the catalytic furnace to ensure that there is enough waste gas for combustion inside the catalytic furnace. When external cold air is blown in, the temperature inside the furnace will decrease, resulting in a decrease in the temperature inside the furnace. This waste heat utilization device cannot reduce the impact of waste gas on the furnace temperature. When the furnace temperature decreases, the temperature of waste heat recovery will also decrease, thereby reducing the temperature of waste heat recovery. Content of the Utility Model

[0003] Aiming at the deficiencies of the prior art, the utility model provides a waste heat utilization device for a catalytic combustion furnace, which solves the problem that the existing waste heat utilization device in the background art cannot increase the furnace temperature, resulting in a relatively low waste heat recovery temperature.

[0004] To achieve the above objectives, the utility model is realized through the following technical solutions: A waste heat utilization device for a catalytic combustion furnace, including a catalytic furnace main body, a heat exchange cover, an air pipe, a water pipe and a guide plate. The bottom of the catalytic furnace main body is welded with a base. The top of the catalytic furnace main body is provided with a furnace chamber. One side of the furnace chamber is provided with a furnace door. The top of the furnace chamber is installed with a heat exchange cover. The bottom of the heat exchange cover is communicated with the inside of the furnace chamber. One side of the top of the furnace chamber is provided with a blower. The blower is communicated with one end of the air pipe, and a heat preservation cover is sleeved outside the air pipe. The other end of the air pipe is communicated with the inside of the catalytic furnace main body. The top of the heat exchange cover is welded with a smoke exhaust cover.

[0005] Preferably, a water pipe is arranged inside the heat exchange cover. One end of the water pipe, the water inlet, is connected to an external water source, and the other end of the water pipe is communicated with the inside of a water storage tank. One side of the bottom of the water storage tank is provided with a drain port, so that the water pipe inside the heat exchange cover can be heated. The heated water pipe can heat the water inside, and the heated water flows into the water storage tank for collection for daily use, which is beneficial to further improving the utilization rate of waste heat.

[0006] Preferably, the trachea is spirally distributed inside the heat exchange cover, and the trachea is made of copper-aluminum composite material. The spiral structure is beneficial to make the waste gas flow spirally inside the trachea, so as to be fully heated.

[0007] Preferably, the water pipe is spirally distributed outside the trachea, and the water pipe is made of copper-aluminum composite material. There is a gap between the inner side of the water pipe and the trachea, and there is also a gap between the outer side of the water pipe and the inner wall of the heat exchange cover. The spiral water pipe is beneficial to extend the flow path of water inside the heat exchange cover, so as to be beneficial to extend the heating time and be fully heated.

[0008] Preferably, a flow guide plate is arranged inside the heat exchange cover. The material of the flow guide plate is the same as that of the water pipe, and the water pipe and the trachea penetrate through the inside of the flow guide plate. The flow guide plates are annularly and equidistantly distributed, and there is a gap between adjacent flow guide plates. The high-temperature gas flow inside the heat exchange cover can heat the flow guide plate while heating the trachea. After being fully heated, multiple flow guide plates can transfer the temperature to the water pipe and the trachea, which is beneficial to heat the water pipe and the trachea and improve the heating efficiency of the water pipe and the trachea.

[0009] The utility model provides a waste heat utilization device for a catalytic combustion furnace, which has the following beneficial effects:

[0010] (1) For this waste heat utilization device of the catalytic combustion furnace, by connecting the blower with the waste gas source, the blower can blow the waste gas into the trachea, and then discharge it into the furnace through the other end of the trachea for combustion. The high-temperature flue gas generated by combustion will rise into the heat exchange cover, and then heat the trachea inside the heat exchange cover. While the trachea is being heated, it can also heat the waste gas flowing spirally inside, so as to increase the temperature of the waste gas before entering the furnace. When the heated waste gas enters the furnace, it can greatly reduce the influence on the temperature inside the furnace, which is beneficial to maintaining a relatively high temperature inside the furnace through the waste heat of the catalytic furnace combustion and improving the temperature of waste heat recovery.

[0011] (2) For this waste heat utilization device of the catalytic combustion furnace, the high-temperature gas flow inside the heat exchange cover can heat the flow guide plate while heating the trachea. After being fully heated, multiple flow guide plates can transfer the temperature to the water pipe, which is beneficial to heat the water pipe. The heated water pipe can heat the water inside, and the heated water flows into the water storage tank for collection for daily use, which is beneficial to further improve the utilization rate of waste heat.

[0012] Thus, it solves the problem that the existing waste heat utilization device cannot increase the temperature inside the furnace, resulting in a relatively low waste heat recovery temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the air pipe and water pipe structure of the present utility model;

[0015] Figure 3 This is a schematic side view structure of the present utility model;

[0016] Figure 4 This is a schematic top view structure of the present utility model;

[0017] Figure 5 This is a schematic diagram of the baffle structure of the present utility model.

[0018] In the figure, 1 is the main body of the catalytic furnace; 2 is the base; 3 is the furnace chamber; 4 is the furnace door; 5 is the heat exchange cover; 6 is the smoke exhaust cover; 7 is the blower; 8 is the air pipe; 9 is the heat preservation cover; 10 is the water inlet; 11 is the water pipe; 12 is the water storage tank; 13 is the drain outlet; 14 is the baffle. Specific embodiments

[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0020] Embodiment 1:

[0021] Please refer to Figures 1-5 , the embodiments of the present utility model provide a technical solution: a catalytic combustion furnace waste heat utilization device, including the main body 1 of the catalytic furnace, the heat exchange cover 5, the air pipe 8, the water pipe 11 and the baffle 14. A base 2 is welded to the bottom of the main body 1 of the catalytic furnace. A furnace chamber 3 is arranged at the top of the main body 1 of the catalytic furnace. A furnace door 4 is arranged on one side of the furnace chamber 3. A heat exchange cover 5 is installed at the top of the furnace chamber 3. The bottom of the heat exchange cover 5 is communicated with the inside of the furnace chamber 3. A blower 7 is arranged on one side of the top of the furnace chamber 3. One end of the blower 7 is communicated with the air pipe 8, and a heat preservation cover 9 is sleeved outside the air pipe 8. The other end of the air pipe 8 is communicated with the inside of the main body 1 of the catalytic furnace. A smoke exhaust cover 6 is welded to the top of the heat exchange cover 5. By connecting the blower 7 with the waste gas source, under the action of the blower 7, the waste gas can be blown into the air pipe 8, and then discharged into the furnace through the other end of the air pipe 8 for combustion. The high-temperature flue gas generated by the combustion will rise into the heat exchange cover 5, and then heat the air pipe 8 inside the heat exchange cover 5. While the air pipe 8 is being heated, it can heat the waste gas flowing in a spiral shape inside, thereby increasing the temperature of the waste gas before entering the furnace. When the heated waste gas enters the furnace, it can greatly reduce the impact on the temperature inside the furnace, thereby facilitating maintaining a relatively high temperature inside the furnace through the waste heat of the catalytic furnace combustion and increasing the temperature of waste heat recovery.

[0022] Embodiment 2:

[0023] A water pipe 11 is arranged inside the heat exchange cover 5. One end of the water pipe 11, the water inlet 10, is connected to an external water source, and the other end of the water pipe 11 is communicated with the inside of the water storage tank 12. A drain port 13 is arranged on one side of the bottom of the water storage tank 12. The water pipe 11 is spirally distributed outside the air pipe 8, and the water pipe 11 is made of copper-aluminum composite material. There is a gap between the inner side of the water pipe 11 and the air pipe 8, and there is also a gap between the outer side of the water pipe 11 and the inner wall of the heat exchange cover 5. A flow guide plate 14 is arranged inside the heat exchange cover 5. The material of the flow guide plate 14 is the same as that of the water pipe 11, and the water pipe 11 and the air pipe 8 are inserted through the inside of the flow guide plate 14. The flow guide plates 14 are distributed at equal intervals in a ring shape, and there is a gap between adjacent flow guide plates 14. The high-temperature gas inside the heat exchange cover 5 can heat the flow guide plate 14 while heating the air pipe 8. Then, after being fully heated, the multiple flow guide plates 14 can transfer the temperature to the water pipe 11, which is beneficial to heating the water pipe 11. The heated water pipe 11 can heat the water inside, and the heated water flows into the water storage tank 12 for collection for daily use, which is beneficial to further improving the utilization rate of waste heat.

[0024] Working principle: By connecting the blower 7 to the waste gas source, under the action of the blower 7, the waste gas can be blown into the air pipe 8, and then discharged into the furnace through the other end of the air pipe 8 for combustion. The high-temperature flue gas generated by combustion will rise to the inside of the heat exchange cover 5. The high-temperature gas inside the heat exchange cover 5 can heat the flow guide plate 14 while heating the air pipe 8. Then, after being fully heated, the multiple flow guide plates 14 can transfer the temperature to the water pipe 11 and the air pipe 8, which is beneficial to heating the water pipe 11 and the air pipe 8 and improving the heating efficiency of the water pipe 11 and the air pipe 8. While the air pipe 8 is being heated, it can heat the waste gas flowing spirally inside, thereby increasing the temperature of the waste gas before entering the furnace. When the heated waste gas enters the furnace, it can greatly reduce the impact on the temperature inside the furnace. At the same time, the water pipe 11 can be heated, and the heated water pipe 11 can heat the water inside, and the heated water flows into the water storage tank 12 for collection for daily use.

[0025] The foregoing has shown and described the basic principles, main features, and advantages of the present utility model. For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-described exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, in any aspect, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, it is intended to embrace all changes within the meaning and scope of the equivalent elements of the claims in the present utility model. Any reference signs in the claims should not be regarded as limiting the corresponding claims.

[0026] In addition, it should be understood that although this specification is described in terms of embodiments, not every embodiment only contains an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A catalytic combustion furnace waste heat utilization device, characterized in that: The invention comprises a catalytic furnace body (1), a heat exchange cover (5), an air pipe (8), a water pipe (11) and a guide plate (14); a base (2) is welded to the bottom of the catalytic furnace body (1); a furnace (3) is arranged on the top of the catalytic furnace body (1); a furnace door (4) is arranged on one side of the furnace (3); a heat exchange cover (5) is installed on the top of the furnace (3); the bottom of the heat exchange cover (5) is connected to the inside of the furnace (3); a blower (7) is arranged on one side of the top of the furnace (3); the blower (7) is connected to one end of the air pipe (8), and a heat insulation cover (9) is mounted on the outside of the air pipe (8); the other end of the air pipe (8) is connected to the inside of the catalytic furnace body (1); and a smoke exhaust cover (6) is welded to the top of the heat exchange cover (5).

2. The device for utilizing waste heat from a catalytic combustion furnace according to claim 1, characterized in that: A water pipe (11) is provided inside the heat exchange cover (5); a water inlet (10) at one end of the water pipe (11) is connected to an external water source, and the other end of the water pipe (11) is communicated with the inside of a water storage tank (12); a drain outlet (13) is provided on one side of the bottom of the water storage tank (12).

3. The device for utilizing waste heat from a catalytic combustion furnace according to claim 1, characterized in that: The air pipe (8) is distributed in a spiral shape inside the heat exchange cover (5), and the air pipe (8) is made of a copper-aluminum composite material.

4. The device for utilizing waste heat from a catalytic combustion furnace according to claim 1, characterized in that: The water pipe (11) is distributed in a spiral shape on the outside of the air pipe (8), and the water pipe (11) is made of a copper-aluminum composite material. There is a gap between the inside of the water pipe (11) and the air pipe (8), and there is a gap between the outside of the water pipe (11) and the inner wall of the heat exchange cover (5).

5. The device for utilizing waste heat from a catalytic combustion furnace according to claim 1, characterized in that: A guide plate (14) is arranged inside the heat exchange cover (5); the guide plate (14) is made of the same material as the water pipe (11); the water pipe (11) and the air pipe (8) are inserted into the guide plate (14); the guide plates (14) are distributed in an annular shape with equal spacing, and there are gaps between adjacent guide plates (14).

Images