Air-cooled wall thermal oxidation furnace device

What is AI technical title?
AI technical title is built by Patsnap AI team. It summarizes the technical point description of the patent document.
By using on/off valves and regulating valves to control the discharge of air-cooled air in the air-cooled wall thermal oxidation furnace, the safety hazards caused by the accidental closure of the air-cooled wall undercooled air are solved, the safety protection of the air-cooled pipeline is achieved, and the pipeline overheating is avoided.

CN224498512UActive Publication Date: 2026-07-14JIANGSU DAHENG ENVIRONMENTAL EQUIP MFG CO LTD

View PDF 1 Cites 0 Cited by

Patent Information

Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner: JIANGSU DAHENG ENVIRONMENTAL EQUIP MFG CO LTD
Filing Date: 2025-08-20
Publication Date: 2026-07-14

Smart Images

Figure CN224498512U_ABST

Patent Text Reader

Abstract

The utility model provides a kind of air cooling wall thermal oxidation furnace device, including furnace body, burner being installed on furnace body, air cooling fan being installed in one side of furnace body and air cooling pipeline assembly being arranged in the outside of furnace body, furnace body is provided with air cooling cavity wall, import and export are opened on air cooling cavity wall, air cooling pipe group includes the air outlet pipeline being connected to export, several distribution pipelines being connected to air outlet pipeline, distribution pass valve being arranged between air outlet pipeline and distribution pipeline, opening and closing valve and regulating valve being installed on distribution pass valve, opening and closing valve and regulating valve are installed at the position of distribution pipeline and distribution pass valve intercommunication, opening and closing valve and regulating valve can adjust the intercommunication state of distribution pass valve and distribution pipeline, regulating valve can change opening and closing state according to the gas pressure in distribution pass valve, the opening and closing state of distribution pipeline is adjusted according to pipeline pressure by regulating valve to carry out pressure relief, to protect the use of distribution pass valve and air outlet pipeline, eliminate overheating security risk.

Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the technical field of air-cooled wall thermal oxidation furnace devices, and in particular to an air-cooled wall thermal oxidation furnace device. Background Technology

[0002] As a type of combustion furnace, the oxidizer is mainly used to incinerate waste gas and wastewater generated in industrial production, decomposing them into harmless carbon dioxide and water. After the fuel in the furnace is initially ignited, waste gas and wastewater are introduced. During the oxidation and decomposition of the waste, the waste generates heat to maintain a high-temperature environment inside the furnace. Due to the secondary combustion and utilization of waste gas and wastewater, the treatment cost of industrial waste gas and wastewater can be effectively reduced. In the above-mentioned oxidation and decomposition process, some heat is dissipated from the furnace wall after the furnace body is heated, resulting in heat waste. To address this, the utility model patent with patent number CN201921060797.9 discloses a combustion-type gas treatment device, which specifically discloses that cooling air is injected into the furnace body through a guide hole. The cooling air rotates inside the heat-insulating cylinder wall to form an air-cooled wall. The air-cooled wall absorbs the heat on the surface of the equipment and carries it out of the furnace body, reducing gas consumption. In existing technologies, the recovery of heat absorbed by air-cooled walls typically involves returning air to the furnace to form secondary air for furnace insulation, returning air to the burner to form preheated combustion air, and returning air to the air-cooling ducts to increase the temperature of the air-cooled air and prevent it from being too cold and affecting the furnace operation. In the aforementioned combustion-type gas processing equipment, valves are inserted into multiple return air ducts to control gas distribution. During operation, this can easily lead to the complete closure of the return air ducts and overheating of the main duct, posing a certain safety hazard. Utility Model Content

[0003] The technical problem to be solved by this utility model is: when the subcooled air of the air-cooled wall of the existing oxidation furnace is in use...

[0004] It is easy to accidentally turn it off, which can cause excessively cold air to be unable to be discharged in time, creating a safety hazard.

[0005] The technical solution adopted by this utility model to solve its technical problem is: an air-cooled wall thermal oxidation furnace device, including a furnace body, a burner installed on the furnace body, an air-cooled fan installed on one side of the furnace body, and an air-cooled pipe assembly disposed outside the furnace body. The furnace body is provided with an air-cooled cavity wall, and the air-cooled cavity wall has an inlet and an outlet. The air-cooled fan is connected to the air-cooled cavity wall through the inlet. The air-cooled pipe assembly includes an air outlet pipe connected to the outlet, a plurality of distribution pipes connected to the air outlet pipe, a distribution valve disposed between the air outlet pipe and the distribution pipes, an on / off valve and a regulating valve installed on the distribution valve. The on / off valve and the regulating valve are installed at the connection between the distribution pipes and the distribution valve. Both the on / off valve and the regulating valve can adjust the connection state between the distribution valve and the distribution pipes. The regulating valve can change the opening and closing state according to the gas pressure in the distribution valve.

[0006] Furthermore, the regulating valve includes a valve core capable of blocking the pipeline, a rotating ring for controlling the rotation of the valve core, and a control rod connecting the valve core and the rotating ring. The valve core can be fitted with the pipeline cross-section of the distribution valve.

[0007] Furthermore, the regulating valve also includes a torsion spring connected to the valve core, one end of the torsion spring being fixed to the distribution valve, and the other end of the torsion spring being fixed to the rotating ring, the torsion spring being able to drive the rotating ring to rotate.

[0008] Furthermore, the regulating valve also includes a rotating sleeve mounted on the distribution valve, a plurality of anti-rotation blocks mounted on the rotating sleeve, and a stop rod inserted in the control rod, wherein the rotating sleeve seals the contact position between the control rod and the distribution valve.

[0009] Furthermore, the anti-rotation stop is disposed on the end of the rotating sleeve away from the distribution valve, the anti-rotation stop is disposed corresponding to the stop rod, the stop rod is insertably inserted through the control rod, and the stop rod is able to rotate between the anti-rotation stops.

[0010] Furthermore, the anti-rotation block in the regulating valve has a slot, and a pin can be inserted and removed through the anti-rotation block. The pin passes through the slot, and the end of the stop rod can be inserted into the slot.

[0011] Furthermore, a spline block is installed at the end of the control lever located inside the distribution valve, and the control lever is inserted into the valve core through the spline block.

[0012] Furthermore, the distribution pipes are also connected to the burner to form primary air, to the air inlet of the air-cooled fan to preheat the injected cooling air, and to the furnace body to form secondary air.

[0013] The beneficial effects of this invention are that the distribution pipe and the distribution valve are connected, and the distribution valve is connected to the air-cooled cavity wall through the air outlet pipe. The heat-exchange air in the air-cooled cavity wall is discharged into the distribution valve through the air outlet pipe, and the heat-exchange air in the distribution valve is transferred to the reuse location through the distribution pipe. The connection state of the distribution pipe is controlled by the on / off valve and the regulating valve. When the distribution pipe is completely closed, the regulating valve can change its state according to the gas pressure in the distribution valve, thereby protecting the use of the distribution valve and the air outlet pipe, avoiding pipe overheating, and eliminating safety hazards. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0015] Figure 1 This is a schematic diagram of the air-cooled wall thermal oxidation furnace device of this utility model;

[0016] Figure 2 yes Figure 1 Schematic diagram of the structure of the intermediate furnace body;

[0017] Figure 3 yes Figure 1 A three-dimensional schematic diagram of the central distribution valve;

[0018] Figure 4 yes Figure 3 A three-dimensional schematic diagram of a centrally operated valve;

[0019] Figure 5 yes Figure 4 A three-dimensional sectional view of the valve shown.

[0020] Figure 6 yes Figure 3 A three-dimensional schematic diagram of the regulating valve;

[0021] Figure 7 yes Figure 6 A partial schematic diagram at point A in the middle;

[0022] In the diagram: Furnace body 10, burner 20, air-cooled fan 30, air-cooled pipe assembly 40, air-cooled cavity wall 110, inlet 111, outlet 112, air outlet pipe 410, distribution pipe 420, distribution valve 430, on / off valve 440, regulating valve 450, valve core 441, control rod 442, rotating ring 431, spline block 432, rotating sleeve 434, anti-rotation block 435, stop rod 433, slot 451, pin 452, torsion spring 453. Detailed Implementation

[0023] The embodiments of this utility model are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model. Rather, the embodiments of this utility model include all variations, modifications, and equivalents falling within the spirit and scope of the appended claims.

[0024] like Figures 1 to 7 As shown, this embodiment provides an air-cooled wall thermal oxidation furnace device, including a furnace body 10, a burner 20 installed on the furnace body 10, an air-cooled fan 30 installed on one side of the furnace body 10, and an air-cooled pipe assembly 40 disposed outside the furnace body 10.

[0025] like Figure 1 and Figure 2 As shown, the furnace body 10 has a hollow columnar structure. An air-cooled cavity wall 110 is formed on the side wall of the furnace body 10, located on the outer side of the furnace body 10. The air-cooled cavity wall 110 can be filled with heat exchange media such as air or nitrogen. In this embodiment, cooling air is preferred as the heat exchange media. The inlet 111 of the air-cooled cavity wall 110 is located at the bottom of the furnace body 10, and the outlet 112 is located at the top of the furnace body 10. Cooling air enters from the inlet 111 and exits from the outlet 112. When the cooling air flows within the air-cooled cavity wall 110, it exchanges heat with the side wall of the furnace body 10, ultimately forming high-temperature gas before being discharged. The burner 20 is located at the top of the furnace body 10 and extends into the furnace body 10. The burner 20 heats the combustion medium and other gases before discharging them into the furnace body 10. Burner 20 provides a heat source to furnace body 10. Waste gas, wastewater, and other waste materials requiring treatment are discharged from the bottom of furnace body 10. Inside furnace body 10, high-heat gas comes into contact with the waste materials, heating and oxidizing them to achieve environmentally friendly decomposition before discharge. The outlet of air-cooled fan 30 is connected to the inlet 111 of air-cooled cavity wall 110 through a pipe. Air-cooled fan 30 drives cooling air into air-cooled cavity wall 110 through inlet 111. After heat exchange, the cooling air is discharged from outlet 112.

[0026] like Figures 2 to 7 As shown, the air-cooled duct assembly 40 includes an air outlet duct 410 connected to the outlet 112, a plurality of distribution ducts 420 connected to the air outlet duct 410, a distribution valve 430 disposed between the air outlet duct 410 and the distribution ducts 420, an on / off valve 440 and a regulating valve 450 installed on the distribution valve 430.

[0027] like Figure 1 and Figure 3As shown, one end of the air outlet duct 410 is connected to the interior of the air-cooled cavity wall 110 via outlet 112, and the other end of the air outlet duct 410 is connected to the distribution valve 430. The type of the distribution valve 430 is selected according to the number of distribution ducts 420 and air outlet ducts 410. In this embodiment, a four-way pipe, i.e., a pipe valve with four ports, is preferred. The distribution duct 420 is connected to the remaining ports on the distribution valve 430. The distribution duct 420 is also connected to the burner 20 to form primary air, to the air inlet of the air-cooled fan 30 to preheat the injected cooling air and protect the air-cooled cavity wall 110, and to the furnace body 10 to form secondary air. Both the primary air and the secondary air are used to maintain the temperature inside the furnace body 10.

[0028] like Figures 3 to 5 As shown, the on / off valve 440 and the regulating valve 450 are installed at the connection point between the distribution pipe 420 and the distribution valve 430. Both the on / off valve 440 and the regulating valve 450 can adjust the connection state between the distribution valve 430 and the distribution pipe 420. The regulating valve 450 can change its opening and closing state according to the gas pressure inside the distribution valve 430. Specifically, the on / off valve 440 includes a valve core 441 inserted into the distribution valve 430, a control rod 442 inserted into the valve core 441, and a rotating ring 431 fixed to the end of the control rod 442. The valve core 441 is rotatably inserted into the pipe opening of the distribution valve 430. After rotating inside the distribution valve 430, the valve core 441 fits into the pipe cross-section, blocking the pipe leading from the distribution valve 430 to the distribution pipe 420. One end of the control rod 442 is inserted into the valve core 441, and the other end of the control rod 442 extends to the outside through the distribution valve 430. A rotating ring 431 is located on the end of the control rod 442 outside the distribution valve 430. The rotating ring 431 drives the control rod 442 to rotate outside the distribution valve 430. A spline block 432 is installed on the end of the control rod 442 inside the distribution valve 430, and the control rod 442 is inserted into the valve core 441 through the spline block 432. Rotating the rotating ring 431 drives the valve core 441 to rotate via the control rod 442, thereby adjusting the opening and closing state of one of the ports on the distribution valve 430 that connects to the distribution pipe 420.

[0029] The on / off valve 440 also includes a rotating sleeve 434 mounted on the distribution valve 430, a plurality of anti-rotation blocks 435 mounted on the rotating sleeve 434, and a stop rod 433 inserted into the control rod 442. The rotating sleeve 434 is positioned corresponding to the control rod 442, which is rotatably inserted into the rotating sleeve 434. The contact point between the control rod 442 and the distribution valve 430 is sealed by the rotating sleeve 434. The anti-rotation blocks 435 are located at the ends of the rotating sleeve 434 facing the rotating ring 431, and are axially positioned at the ports along the rotating sleeve 434. The plurality of anti-rotation blocks 435 are configured relative to the rotational stroke of the valve core 441. The stop rod 433 is mounted corresponding to the anti-rotation blocks 435, and is insertably inserted through the control rod 442, allowing it to rotate between the anti-rotation blocks 435. Specifically, when the stop lever 433 rotates to its limit position between the anti-rotation blocks 435, the control lever 442 drives the valve core 441 to rotate until the distribution valve 430 changes its open / closed state.

[0030] like Figures 4 to 7 As shown, the regulating valve 450 and the on / off valve 440 have similar structures. The anti-rotation stop 435 in the regulating valve 450 has a slot 451. A pin 452 can be inserted and removed through the anti-rotation stop 435 in the regulating valve 450. The end of the stop rod 433 in the regulating valve 450 can be inserted into the slot 451. The pin 452 can be inserted through the stop rod 433 in the slot 451. The stop rod 433 in the slot 451 can keep the regulating valve 450 in the open state. When the regulating valve 450 is closed, the pin 452 is not inserted into the slot 451 where the stop rod 433 is located. A torsion spring 453 is sleeved on the outer side of the control lever 442 of the regulating valve 450. One end of the torsion spring 453 is fixed to the rotating ring 431, and the other end is fixed to the rotating sleeve 434. Since the rotating sleeve 434 is fixed to the distribution valve 430, the torsion spring 453 is effectively fixed to the distribution valve 430. In its natural state, the regulating valve 450 blocks the distribution valve 430. When the gas pressure inside the distribution valve 430 increases, it can push and compress the valve core 441 of the regulating valve 450 until it overcomes the elasticity of the torsion spring 453, thus opening the distribution valve 430.

[0031] In operation, the above-mentioned system first injects refrigerated air into the air-cooled wall 110 via the air-cooled fan 30. Then, the burner 20 and the raw material input piping system are turned on. The burner 20 provides high-heat gas to the furnace body 10, maintaining the high temperature for the oxidation and decomposition of waste within the furnace body 10. Simultaneously, the piping system inputs waste and oxygen into the furnace body 10. In this high-temperature, high-oxygen environment, the waste gradually decomposes into water and carbon dioxide. The decomposition process releases heat, further maintaining the high-temperature environment within the furnace body 10. To avoid heat waste, the refrigerated air in the air-cooled cavity wall 110 is discharged from the outlet 112 after heat exchange. The heat-exchanged refrigerated air enters the distribution valve 430. After adjustment and distribution by the distribution valve 430, the refrigerated air enters the burner 20 to form primary air, enters the furnace body 10 to form secondary air, and enters the air inlet of the air-cooled fan 30 for preheating. To meet the temperature requirements of the burner 20 and furnace body 10, as well as the air intake temperature requirements of the air-cooled fan 30, the opening and closing of the distribution valve 430 is controlled. Specifically, the control rod 442 is driven to rotate within the rotating sleeve 434 via the rotating ring 431, which in turn drives the valve core 441 to rotate, thus completing the switching of the pipeline opening and closing. When all the opening / closing valves 440 and the regulating valve 450 are in the closed state, if the refrigerant air pressure in the distribution valve 430 is too high, it will squeeze and push the valve core 441 of the regulating valve 450, thereby achieving pressure relief protection, preventing pipeline overheating, and eliminating safety hazards.

[0032] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. An air-cooled wall thermal oxidation furnace device, characterized in that: The furnace includes a furnace body (10), a burner (20) mounted on the furnace body (10), an air-cooled fan (30) mounted on one side of the furnace body (10), and an air-cooled duct assembly (40) disposed outside the furnace body (10). The furnace body (10) is provided with an air-cooled cavity wall (110), which has an inlet (111) and an outlet (112). The air-cooled fan (30) is connected to the air-cooled cavity wall (110) through the inlet (111). The air-cooled duct assembly (40) includes an air outlet duct (410) connected to the outlet (112) and several distribution pipes connected to the air outlet duct (410). The system includes a distribution duct (420), a distribution valve (430) disposed between the outlet duct (410) and the distribution duct (420), an on / off valve (440) and a regulating valve (450) installed on the distribution valve (430). The on / off valve (440) and the regulating valve (450) are installed at the connection between the distribution duct (420) and the distribution valve (430). Both the on / off valve (440) and the regulating valve (450) can adjust the connection state between the distribution valve (430) and the distribution duct (420). The regulating valve (450) can change its opening and closing state according to the gas pressure in the distribution valve (430).

2. The air-cooled wall thermal oxidation furnace apparatus according to claim 1, characterized in that: The regulating valve (450) includes a valve core (441) capable of blocking the pipeline, a rotating ring (431) for controlling the rotation of the valve core (441), and a control rod (442) connecting the valve core (441) and the rotating ring (431). The valve core (441) can be fitted with the pipeline cross section of the distribution valve (430).

3. The air-cooled wall thermal oxidation furnace apparatus according to claim 2, characterized in that: The regulating valve (450) also includes a torsion spring (453) connected to the valve core (441). One end of the torsion spring (453) is fixed to the distribution valve (430), and the other end of the torsion spring (453) is fixed to the rotating ring (431). The torsion spring (453) can drive the rotating ring (431) to rotate.

4. The air-cooled wall thermal oxidation furnace apparatus according to claim 2, characterized in that: The regulating valve (450) further includes a rotating sleeve (434) mounted on the distribution valve (430), a plurality of anti-rotation blocks (435) mounted on the rotating sleeve (434), and a stop rod (433) inserted in the control rod (442). The rotating sleeve (434) seals the contact position between the control rod (442) and the distribution valve (430).

5. The air-cooled wall thermal oxidation furnace apparatus according to claim 4, characterized in that: The anti-rotation stop (435) is disposed on the end of the rotating sleeve (434) away from the distribution valve (430). The anti-rotation stop (435) is disposed corresponding to the stop rod (433). The stop rod (433) is insertably inserted through the control rod (442). The stop rod (433) can rotate between the anti-rotation stops (435).

6. The air-cooled wall thermal oxidation furnace apparatus according to claim 4, characterized in that: The anti-rotation stop (435) in the regulating valve (450) has a slot (451), and a pin (452) can be inserted and removed through the anti-rotation stop (435). The pin (452) passes through the slot (451), and the end of the stop rod (433) can be inserted into the slot (451).

7. The air-cooled wall thermal oxidation furnace apparatus according to claim 2, characterized in that: A spline block (432) is installed on the end of the control lever (442) inside the distribution valve (430), and the control lever (442) is inserted into the valve core (441) through the spline block (432).

8. The air-cooled wall thermal oxidation furnace apparatus according to claim 1, characterized in that: The distribution pipe (420) is also connected to the burner (20) to form primary air, connected to the air inlet of the air-cooled fan (30) to preheat the injected cooling air, and connected to the furnace body (10) to form secondary air.