A bed-type stainless steel incinerator

Abstract

A bed-type stainless steel incinerator has an upper chamber located above a lower chamber, with the interiors of the upper and lower chambers connected. The lower chamber is a duct structure, with the lower end of the duct integrally formed with a valve seat. A pipe connects to the outside of the valve seat, and a valve is installed within the valve seat to connect the ventilation duct to the pipe. Advantages include: the integral forming of the lower end of the lower chamber with the valve seat reduces redundant material, and while maintaining strength, the equipment weight is reduced by 10%-20% compared to a carbon steel RTO of the same specifications.

Description

Technical Field

[0001] This utility model relates to the technical field of industrial waste gas treatment equipment, specifically to a bed-type stainless steel incinerator. Background Technology

[0002] Regenerative thermal oxidizers (RTOs) are key equipment in industrial waste gas treatment. They oxidize and decompose organic matter in waste gas into harmless CO2 and H2O through high-temperature incineration, while simultaneously recovering heat using a heat storage medium. They are characterized by low energy consumption and high treatment efficiency. However, existing RTO equipment has several shortcomings in its structural design and material selection:

[0003] 1. Defects in the lower chamber structure: Most mainstream RTOs on the market adopt a square welded structure for the lower chamber, which requires a large number of steel plates to be spliced ​​and welded. The large amount of steel used and the heavy weight not only increase the material cost, but also require a lot of processing labor for welding and grinding, resulting in low production efficiency.

[0004] 2. Strength and cost issues of the upper chamber: The upper chamber, as the outer shell of the high-temperature combustion zone, is traditionally made of carbon steel plate. In order to ensure strength, a large number of reinforcing ribs need to be welded, which not only increases material consumption and processing workload, but also carbon steel is prone to corrosion in acidic waste gas environment, resulting in a short service life.

[0005] 3. Material and performance contradiction: Stainless steel has excellent corrosion resistance, but its cost is much higher than that of carbon steel (about 2-3 times that of carbon steel). If the existing RTO is directly replaced with stainless steel, the material usage will increase due to the lack of weight optimization, significantly increasing the cost and making it difficult to balance high strength, corrosion resistance and economy.

[0006] 4. Insufficient corrosion resistance: Industrial waste gases (such as those from chemical, coating, and pharmaceutical industries) often contain acidic components such as hydrochloric acid, sulfuric acid, and nitric acid. In particular, chlorine-containing waste gases can severely corrode carbon steel equipment, leading to equipment leaks, shortened lifespan, and increased maintenance costs. Summary of the Invention

[0007] The purpose of this invention is to solve the existing technical problems by proposing a bed-type stainless steel incinerator.

[0008] To achieve the above objectives, the present invention adopts the following technical solution: a bed-type stainless steel incinerator, comprising a lower chamber, an upper chamber, and a valve. The upper chamber is located at the upper end of the lower chamber, and the interior of the upper chamber is connected to the interior of the lower chamber. The lower chamber is a duct structure, and the lower end of the duct is integrally formed with a valve seat. The valve seat is connected to a pipeline, and the valve is installed in the valve seat for connecting the ventilation duct and the pipeline.

[0009] Furthermore, the valve body is a push valve.

[0010] Furthermore, a push valve is installed on each side of the valve seat, and each push valve is connected to a corresponding pipe.

[0011] Furthermore, the push valve includes a cylinder, a valve plate, and a seal. The seal is disposed on the end face of the valve seat, and an inner flange is provided inside the valve seat. One end of the cylinder drive shaft is movably connected to the center of the inner flange, and the other end of the cylinder drive shaft is connected to the cylinder. The valve plate is provided on the cylinder drive shaft, and the cylinder drives the valve plate to move back and forth to achieve sealing and opening.

[0012] Furthermore, a purge pipe is connected to one side of the lower chamber, and a butterfly valve is installed at the connection point for control.

[0013] Furthermore, the valve body is a butterfly valve.

[0014] Furthermore, several continuous upper chambers are located above several continuous lower chambers, the interiors of the several continuous upper chambers are connected to the interiors of the several continuous lower chambers, and the several continuous upper chambers are connected to the valve body through the several continuous lower chambers.

[0015] The beneficial effects of this invention are: it solves the problems of high material consumption, high processing cost, poor corrosion resistance, and the contradiction between strength and economy in existing bed-type RTOs; and achieves...

[0016] 1. Low cost: The lower end of the lower chamber is integrally formed with the valve seat, which reduces the amount of steel used and welding work, and significantly reduces the overall cost.

[0017] 2. Corrosion resistance: Made of 304 / 316L stainless steel, especially 316L stainless steel, which has excellent chlorine resistance and can withstand corrosion from various acidic waste gases, solving the problem of easy rusting of carbon steel equipment.

[0018] 3. Easy to maintain: The lower end of the lower chamber is integrally formed with the valve seat, reducing welding failure points; the push valve has good sealing performance, reducing the frequency of maintenance.

[0019] 4. High strength and lightweight: The lower end of the lower chamber is integrally formed with the valve seat to reduce redundant materials. While ensuring strength, the weight of the equipment is reduced by 10%-20% compared with carbon steel RTO of the same specification. Attached Figure Description

[0020] Figure 1 A schematic diagram of a five-bed structure Figure 1 .

[0021] Figure 2 Schematic diagram of the push valve structure Figure 1 .

[0022] Figure 3 Schematic diagram of the push valve structure Figure 2 .

[0023] Figure 4This is a cross-sectional view of the five-bed chamber.

[0024] Figure 5 This is a schematic diagram of another five-bed structure.

[0025] Figure 6 This is a schematic diagram of the third type of five-bed structure.

[0026] Figure 7 This is a schematic diagram of a push valve with two pipes.

[0027] Figure 8 This is a schematic diagram of a three-bed structure. Detailed Implementation

[0028] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0029] Example 1 combined with appendix Figure 1-8 A bed-type stainless steel incinerator includes a lower chamber 1, an upper chamber 2, and a push valve 3. The upper chamber is a stainless steel corrugated concave-convex structure 7. The upper chamber is located above the lower chamber and the interior of the upper chamber is connected to the interior of the lower chamber. The lower chamber is a duct structure. The lower end of the duct is integrally formed with a valve seat. The valve seat is connected to a pipe. The valve is installed in the valve seat to connect the ventilation pipe and the pipe.

[0030] A bed-type stainless steel incinerator with a push-pull valve body.

[0031] A bed-type stainless steel incinerator has a lower chamber with a duct structure. The lower end of the duct 4 is integrally formed with a valve seat 5. A push valve is installed in the valve seat to connect the ventilation duct 4 and the pipe 6. The stainless steel corrugated concave-convex structure is made of stainless steel plate through sheet metal processing into a continuous corrugated structure. Multiple plates are welded together to form the outer wall of the upper chamber. Support columns are set around the upper chamber and diagonal braces are provided on the support columns.

[0032] The stainless steel corrugated concave-convex structure of the upper chamber eliminates the need for reinforcing ribs. Although stainless steel is expensive, the overall material consumption is reduced, and the equipment lifespan is extended to more than 10 years, resulting in a significant reduction in overall costs. The corrugated structure offers stable strength and a low equipment failure rate. High strength and lightweight: The stainless steel corrugated concave-convex structure enhances strength through morphological optimization.

[0033] A bed-type stainless steel incinerator has a push valve on each side of the valve seat, and each push valve is connected to a corresponding pipe. One pipe is an air inlet pipe, and the other pipe is an air outlet pipe.

[0034] A bed-type stainless steel incinerator, wherein the axis of the air duct is perpendicular to the plane of the valve seat, and the inner wall of the air duct smoothly transitions with the inner wall of the valve seat.

[0035] A bed-type stainless steel incinerator, wherein the stainless steel corrugated concave-convex structure is continuously distributed, and the crests and troughs of the corrugations are distributed on a uniform horizontal plane.

[0036] A bed-type stainless steel incinerator has a purge pipe 8 connected to one side of the lower chamber, and a butterfly valve 9 is installed at the connection point for control.

[0037] A bed-type stainless steel incinerator with a butterfly valve body.

[0038] A bed-type stainless steel incinerator has an upper chamber with a corrugated stainless steel structure and a lower chamber with a valve body at the lower end for connecting a ventilation pipe and a pipeline. Several continuous upper chambers are located above several continuous lower chambers, and the interiors of the several continuous upper chambers are connected to the interiors of the several continuous lower chambers. The several continuous upper chambers are connected to the valve body through the several continuous lower chambers.

[0039] A bed-type stainless steel incinerator, wherein the push valve is disposed in the valve seat of the lower chamber, and the valve plate of the push valve is sealed to the valve seat.

[0040] A bed-type stainless steel incinerator, wherein the corrugated height of the stainless steel corrugated concave-convex structure is 50-150mm, the corrugation spacing is 100-300mm, and the corrugation cross section is arc-shaped or trapezoidal.

[0041] A bed-type stainless steel incinerator, wherein the stainless steel plate is one of 316L, 304, 201, or 304L stainless steel.

[0042] A bed-type stainless steel incinerator, wherein the push valve includes a cylinder 31, a valve plate 32, and a sealing element 33. The sealing element is disposed on the end face of the valve seat, and an inner flange 34 is provided inside the end of the valve seat. One end of the cylinder drive shaft 35 is movably connected to the center of the inner flange, and the other end of the cylinder drive shaft is connected to the cylinder. The valve plate 32 is provided on the cylinder drive shaft, and the cylinder drives the valve plate to move back and forth to achieve sealing and opening.

[0043] A bed-type stainless steel incinerator has a pipe connected to a valve seat on one side and a cylinder on the other side of the pipe, with one end of the cylinder extending into the pipe.

[0044] A bed-type stainless steel incinerator has a fixed frame 36 in the pipeline, a cylinder drive shaft through hole in the center of the fixed frame, and roller assemblies 37 distributed vertically on the back of the cylinder drive shaft through hole; a roller assembly is also provided in the center of the valve flange.

[0045] A bed-type stainless steel incinerator, wherein the air duct and valve seat are made of one of 316L, 304, 201, or 304L stainless steel.

[0046] A bed-type stainless steel incinerator has a support frame on the outside of the lower chamber and the push valve, and the pipes are external waste gas pipes and exhaust pipes.

[0047] A bed-type stainless steel incinerator, comprising multiple combinations of a lower chamber and an upper chamber.

[0048] A bed-type stainless steel incinerator, wherein the combination of the lower chamber and the upper chamber can be 1 to 7.

[0049] A bed-type stainless steel incinerator, wherein the lower chamber and upper chamber can be combined in 3, 5, or 7 combinations.

[0050] A bed-type stainless steel incinerator, comprising several lower chambers and an upper chamber.

[0051] A bed-type stainless steel incinerator, the upper chamber body: adopts a stainless steel corrugated concave-convex structure with a trapezoidal cross section, which is welded together to form the upper chamber furnace body. No welding reinforcing ribs are required, and its deformation resistance is increased by 30% compared with the structure of carbon steel plate with welding ribs of the same thickness.

[0052] A bed-type stainless steel incinerator, wherein the heat storage chamber is filled with ceramic heat storage material and located between the lower chamber and the upper chamber to achieve heat recovery.

[0053] A bed-type stainless steel incinerator, wherein the burner is installed on the top of the upper chamber and heats the waste gas to above 850°C for oxidative decomposition.

[0054] A bed-type stainless steel incinerator includes a push-pull valve located at the inlet and outlet valves of the lower chamber. The valve plate is made of stainless steel and is fitted with a fluororubber sealing ring that fits snugly against an integrally molded valve seat. The sealing leakage rate is ≤0.1%.

[0055] During operation, exhaust gas enters the regenerator bed for preheating through the lower chamber duct, then enters the upper chamber for combustion and purification by the burner. After purification, the gas releases heat through another regenerator bed and is finally discharged through the lower chamber exhaust duct. A push valve switches the intake and exhaust paths, enabling alternating heat storage and release.

[0056] By using stainless steel, the equipment not only has high strength and corrosion resistance, but also achieves a balance between economy and performance by reducing material usage and processing costs, making it particularly suitable for acidic and chlorine-containing waste gas treatment scenarios.

[0057] A bed-type stainless steel incinerator with circular or square pipes.

[0058] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A bed type stainless steel incinerator comprising a lower chamber body, an upper chamber body, and a valve, characterized in that: The upper chamber is located above the lower chamber, and the interior of the upper chamber is connected to the interior of the lower chamber. The lower chamber is a duct structure, and the lower end of the duct is integrally formed with the valve seat. The valve seat is connected to the pipeline, and the valve is installed in the valve seat to connect the ventilation duct and the pipeline.

2. The bed-type stainless steel incinerator according to claim 1, characterized in that: The valve body is a push valve.

3. A bed-type stainless steel incinerator according to claim 2, characterized in that: A push valve is installed on each side of the valve seat, and each push valve is connected to a corresponding pipe.

4. A bed-type stainless steel incinerator according to claim 2, characterized in that: The push valve includes a cylinder, a valve plate, and a seal. The seal is located on the end face of the valve seat. An inner flange is provided inside the valve seat. One end of the cylinder drive shaft is movably connected to the center of the inner flange, and the other end of the cylinder drive shaft is connected to the cylinder. The valve plate is provided on the cylinder drive shaft. The cylinder drives the valve plate to move back and forth to achieve sealing and opening.

5. A bed-type stainless steel incinerator according to claim 2, characterized in that: A purge pipe is connected to one side of the lower chamber, and a butterfly valve is installed at the connection point for control.

6. A bed-type stainless steel incinerator according to claim 1, characterized in that: The valve body is a butterfly valve.

7. A bed-type stainless steel incinerator according to claim 1, characterized in that: Several continuous upper chambers are located above several continuous lower chambers, and the interiors of the several continuous upper chambers are connected to the interiors of the several continuous lower chambers. The several continuous upper chambers are connected to the valve body through the several continuous lower chambers.

Images