Natural gas waste gas combustion furnace based on multi-stage combustion treatment

Abstract

The utility model relates to the field of waste gas treatment, in particular to a natural gas waste gas combustion furnace based on multi-stage combustion treatment, which comprises a combustion chamber, and at least two filter cabins are arranged in the combustion chamber; a propelling assembly used for pushing gas to flow is arranged in each filtering cabin, and combustion cavities used for combusting waste gas are formed in the two sides of each filtering cabin; a driving device used for driving the propelling assembly is arranged on the outer side of the combustion chamber. According to the multi-stage waste gas treatment device, the functions of multi-stage combustion and multi-stage filtration of waste gas are achieved through the filtering cabin, the propelling assembly and the driving device, meanwhile, the propelling assembly is used for efficiently conveying the waste gas, and the problem that traditional multi-stage treatment equipment is insufficient in waste gas treatment efficiency is solved; a poor filtering effect or system blockage caused by too high or too low flow speed is avoided.

Description

Technical Field

[0001] This utility model relates to the field of waste gas treatment, specifically to a natural gas waste gas combustion furnace based on multi-stage combustion treatment. Background Technology

[0002] Existing treatment equipment typically has a continuous internal cavity. Natural gas waste gas combustion furnaces primarily treat waste gas through combustion; however, incomplete combustion often occurs as the waste gas passes through the internal cavity. Furthermore, due to internal structural issues, the contact between the waste gas and the filtration equipment is insufficient, resulting in ineffective filtration of the treated waste gas. This makes it difficult to meet treatment standards, and the discharged gas still pollutes the environment.

[0003] To this end, Chinese Patent Publication No. CN209672358U discloses a multi-stage regenerative thermal oxidizer (RCO) combustion furnace. Through the arrangement of a first housing, a filter screen, a first guide hood, a second guide hood, and a first housing cover, the filter screen filters particulate impurities in the exhaust gas during use. The first guide hood diffuses the exhaust gas, facilitating full contact between the exhaust gas and the filter screen. The second guide hood collects and guides the exhaust gas, facilitating its entry into the second connecting pipe. Furthermore, the filter screen can be easily cleaned by opening the first housing cover and pulling it upwards from the U-shaped fixing block.

[0004] When exhaust gas undergoes multi-stage treatment, it needs to pass through multiple treatment units or modules with different functions, significantly increasing the resistance to gas transmission. On the one hand, the greater resistance reduces the gas velocity within the pipeline, causing exhaust gas that was originally designed to pass quickly through the entire treatment system to become stagnant in certain local areas, resulting in a substantial reduction in the amount of exhaust gas that can be processed per unit time. On the other hand, overcoming the increased resistance often requires additional power to the equipment, which not only increases the energy cost of the equipment but may also lead to problems such as operational stability issues. Utility Model Content

[0005] To address the aforementioned issues, a natural gas exhaust gas combustion furnace based on multi-stage combustion treatment is provided. This furnace solves the problem of insufficient exhaust gas treatment efficiency in traditional multi-stage treatment equipment by using a filter chamber, a propulsion assembly, and a drive device.

[0006] To address the problems of existing technologies, this utility model provides a natural gas exhaust gas combustion furnace based on multi-stage combustion treatment, including a combustion chamber with at least two filter compartments; each filter compartment is equipped with a propulsion component for driving gas flow, and each filter compartment has combustion chambers on both sides for burning exhaust gas; a drive device for driving the propulsion component is provided on the outside of the combustion chamber.

[0007] Preferably, the propulsion assembly includes a main shaft, a support frame, partitions, and an elastic element; the filter chamber is cylindrical, the main shaft is rotatably mounted on the filter chamber, and the axis of the main shaft is offset from the axis of the filter chamber; the support frame is sleeved on the main shaft, and the drive end of the drive device is connected to the main shaft for transmission; the partitions are slidably mounted on the support frame, and each support frame has at least three partitions, with the partitions arranged in a circular array along the axis of the main shaft; the elastic element is mounted on the support frame, and both ends of the elastic element are connected to the partitions and the support frame respectively, with the end of the partition away from the support frame abutting against the inner wall of the filter chamber under the elastic force of the elastic element; the partitions divide the interior of the filter chamber into at least three mutually isolated adsorption chambers.

[0008] Preferably, the drive unit includes a connecting shaft and a rotary drive assembly; the main shafts on adjacent filter chambers are coaxially connected via the connecting shaft; the rotary drive assembly is used to drive the connecting shaft to rotate.

[0009] Preferably, the rotary drive assembly includes a rotary driver, a first rotary gear, and a second rotary gear; the rotary driver is mounted on the outer wall of the combustion chamber; the first rotary gear is sleeved on the drive end of the rotary driver; the second rotary gear is sleeved on the connecting shaft, and the first rotary gear and the second rotary gear are meshed together.

[0010] Preferably, each end of the filter chamber is provided with a side plate, and the two side plates are respectively provided with an air inlet pipe and an air outlet pipe; the air inlet pipes and air outlet pipes of two adjacent filter chambers are staggered.

[0011] Preferably, the filter chamber is equipped with a viewing window for observation.

[0012] The advantages of this utility model compared to the prior art are:

[0013] 1. This utility model realizes the function of multi-stage combustion and multi-stage filtration of exhaust gas through a filter chamber, a propulsion component and a drive device. At the same time, it uses the propulsion component to efficiently transport the exhaust gas, which solves the problem of insufficient treatment efficiency of traditional multi-stage treatment equipment and avoids poor filtration effect or system blockage due to excessively fast or slow flow rate.

[0014] 2. This utility model achieves the function of propelling gas flow through a main shaft, support frame, partition plate and elastic element.

[0015] 3. This utility model improves the dispersion uniformity of the mixed gas by staggering the inlet and outlet pipes. To ensure complete combustion of the mixed gas, the inlet and outlet pipes between adjacent filter chambers are staggered, causing the axis of the inlet pipe to deviate from the axis of the outlet pipe. This results in greater dispersion of the gas during transmission, enabling more complete combustion. Attached Figure Description

[0016] Figure 1This is a three-dimensional schematic diagram of a natural gas waste gas combustion furnace based on multi-stage combustion treatment according to this utility model.

[0017] Figure 2 This is a three-dimensional schematic diagram of multiple filter chambers and drive devices of a natural gas exhaust gas combustion furnace based on multi-stage combustion treatment according to this utility model.

[0018] Figure 3 This is a three-dimensional schematic diagram of the internal structure of the filter chamber in a natural gas exhaust gas combustion furnace based on multi-stage combustion treatment according to this utility model.

[0019] Figure 4 This is a side view of the internal structure of the filter chamber in a natural gas exhaust gas combustion furnace based on multi-stage combustion treatment according to this utility model.

[0020] Figure 5 This is a three-dimensional exploded view of the propulsion component in a natural gas exhaust gas combustion furnace based on multi-stage combustion treatment according to this utility model.

[0021] Figure 6 This is the utility model Figure 5 A magnified view of a portion of point A in the middle.

[0022] Figure 7 This is a three-dimensional schematic diagram of a drive device for a natural gas waste gas combustion furnace based on multi-stage combustion treatment according to this utility model.

[0023] The numbers in the diagram are as follows: 1-combustion chamber; 11-filter chamber; 111-side plate; 1111-intake pipe; 1112-outtake pipe; 112-packing; 113-viewing window; 12-propulsion assembly; 121-main shaft; 122-support frame; 1221-recess; 123-partition; 124-elastic element; 125-sealing plate; 2-drive device; 21-connecting shaft; 22-rotary drive assembly; 221-rotary driver; 222-first rotating gear; 223-second rotating gear. Detailed Implementation

[0024] To further understand the features, technical means, and specific objectives and functions achieved by this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments.

[0025] Reference Figures 1-3 A natural gas exhaust gas combustion furnace based on multi-stage combustion treatment includes a combustion chamber 1, which has at least two filter chambers 11; each filter chamber 11 is provided with a propulsion component 12 for driving gas flow, and each filter chamber 11 has a combustion chamber on both sides for burning exhaust gas; a drive device 2 for driving the propulsion component 12 is provided on the outside of the combustion chamber 1.

[0026] This invention achieves multi-stage combustion and filtration of exhaust gas through a filter chamber 11, a propulsion assembly 12, and a drive device 2. Simultaneously, the propulsion assembly 12 efficiently transports the exhaust gas, solving the problem of insufficient treatment efficiency in traditional multi-stage treatment equipment and avoiding poor filtration or system blockage due to excessively fast or slow flow rates. Each combustion chamber is equipped with an automatic ignition device (not shown in the figure). A controller for human-machine interaction is located on the outside of the combustion chamber 1, and the drive device 2 is electrically connected to the controller. In operation, exhaust gas and natural gas are input into the combustion chamber 1 through pipelines and a transmission system. When the gas reaches the combustion chamber, the automatic ignition device ignites and burns the mixture, and then the hot gas flow enters the filter chamber 11 for filtration. The propulsion assembly 12 within the filter chamber 11 continuously propels the gas, maintaining pressure and stabilizing the gas transport speed. Simultaneously, the coordinated operation of multiple filter chambers 11 and multiple combustion chambers achieves multi-stage combustion and filtration of the exhaust gas.

[0027] Reference Figures 3-6 The propulsion assembly 12 includes a main shaft 121, a support frame 122, a partition plate 123, and an elastic element 124. The filter chamber 11 is cylindrical, and the main shaft 121 is rotatably mounted on the filter chamber 11, with the axis of the main shaft 121 offset from the axis of the filter chamber 11. The support frame 122 is sleeved on the main shaft 121, and the drive end of the drive device 2 is connected to the main shaft 121. The partition plate 123 is slidably mounted on the support frame 122, and each support frame 122 has at least three partition plates 123, which are arranged in a circular array along the axis of the main shaft 121. The elastic element 124 is mounted on the support frame 122, and both ends of the elastic element 124 are connected to the partition plate 123 and the support frame 122, respectively. The end of the partition plate 123 away from the support frame 122 abuts against the inner wall of the filter chamber 11 under the elastic force of the elastic element 124. The partition plate 123 divides the interior of the filter chamber 11 into at least three mutually isolated adsorption chambers.

[0028] This invention achieves the function of propelling gas flow through a main shaft 121, a support frame 122, a partition 123, and an elastic element 124. The support frame 122 is equipped with a sealing plate 125 to improve the sealing of the adsorption chamber. The sealing plate 125 is connected to the support frame 122 and rotatably connected to the inner wall of the filter chamber 11. The support frame 122 has a recess 1221, which increases the volume of the adsorption chamber and facilitates gas transport. The adsorption chamber is equipped with a packing material 112 for adsorbing impurities, and the packing material 112 is positioned on the support frame 122, thus preventing the packing material 112 from being squeezed by the partition 123 during rotation. In operation, after the operator starts the combustion furnace, the controller sends a signal to the drive device 2, which drives the main shaft 121 to rotate. The main shaft 121 drives the support frame 122 to rotate, and the support frame 122 drives the partition 123 to rotate. Because the axis of the main shaft 121 is offset from the axis of the filter chamber 11, the volume of each adsorption chamber changes continuously as the partition 123 rotates. As the adsorption chamber gradually moves away from the axis of the filter chamber 11, its volume gradually decreases. The total amount of gas in the adsorption chamber remains unchanged, thereby increasing the gas pressure. During gas transfer, after the gas is input into the adsorption chamber in the filter chamber 11, it is pressurized by the drive device 2. After pressurization, the gas is then transferred to the subsequent process.

[0029] Reference Figure 1 and Figure 2 The drive unit 2 includes a connecting shaft 21 and a rotary drive assembly 22; the main shaft 121 on the adjacent filter chamber 11 is coaxially connected through the connecting shaft 21; the rotary drive assembly 22 is used to drive the connecting shaft 21 to rotate.

[0030] This invention achieves the function of synchronously driving the main shaft 121 within multiple filter chambers 11 to rotate through a connecting shaft 21 and a rotary drive assembly 22. The rotary drive assembly 22 is electrically connected to the controller. After the combustion furnace is started, the controller sends a signal to the rotary drive assembly 22, which drives the connecting shaft 21 to rotate. The connecting shaft 21 drives the main shaft 121, which is coaxially connected to it, to rotate synchronously, thereby synchronously driving multiple baffles 123 to rotate and pressurize the gas.

[0031] Reference Figure 2 and Figure 7 The rotary drive assembly 22 includes a rotary driver 221, a first rotary gear 222, and a second rotary gear 223. The rotary driver 221 is mounted on the outer wall of the combustion chamber 1. The first rotary gear 222 is sleeved on the drive end of the rotary driver 221. The second rotary gear 223 is sleeved on the connecting shaft 21, and the first rotary gear 222 and the second rotary gear 223 are meshed together.

[0032] This invention achieves the function of driving the connecting shaft 21 to rotate through a rotary driver 221, a first rotary gear 222, and a second rotary gear 223. The rotary driver 221 is preferably a servo motor, electrically connected to a controller. After the controller sends a signal to the rotary driver 221, the rotary driver 221 drives the first rotary gear 222 to rotate, which in turn drives the second rotary gear 223, which in turn drives the connecting shaft 21 to rotate, thus completing the driving of the connecting shaft 21. By adjusting the transmission ratio of the first rotary gear 222 and the second rotary gear 223, speed reduction is achieved, reducing the driving pressure on the rotary driver 221, thereby stably driving the main shaft 121 within the multiple filter chambers 11 to rotate.

[0033] Reference Figure 1 and Figure 2 Each of the two ends of the filter chamber 11 is provided with a side plate 111, and the two side plates 111 are respectively provided with an air inlet pipe 1111 and an air outlet pipe 1112; the air inlet pipe 1111 and the air outlet pipe 1112 of two adjacent filter chambers 11 are staggered.

[0034] This invention improves the dispersion uniformity of the mixed gas by staggering the inlet pipe 1111 and the outlet pipe 1112. To ensure complete combustion of the mixed gas, the inlet pipe 1111 and the outlet pipe 1112 between adjacent filter chambers 11 are staggered, causing the axis of the inlet pipe 1111 to deviate from the axis of the outlet pipe 1112. This results in greater dispersion of the gas during transport, enabling more complete combustion.

[0035] Reference Figures 1-3 The filter chamber 11 is equipped with a viewing window 113 for observation.

[0036] This invention provides a viewing window 113 on the filter chamber 11, allowing operators to easily observe the internal cavity of the filter chamber 11. Based on the internal conditions of the filter chamber 11, the gas transmission and drive device 2 can be controlled in a timely manner, improving the operational stability of the combustion furnace.

[0037] The above embodiments only illustrate one or more implementations of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.

Claims

1. A natural gas waste gas combustion furnace based on multi-stage combustion treatment, characterized in that, It includes a combustion chamber (1), and the combustion chamber (1) is provided with at least two filter chambers (11); Each filter chamber (11) is equipped with a propulsion assembly (12) for driving gas flow, and each filter chamber (11) has a combustion chamber on both sides for burning exhaust gas. The combustion chamber (1) is provided with a drive device (2) for driving the propulsion assembly (12).

2. The natural gas waste gas combustion furnace based on multi-stage combustion treatment according to claim 1, characterized in that, The propulsion assembly (12) includes a main shaft (121), a support frame (122), a partition (123), and an elastic element (124); The filter chamber (11) is cylindrical, and the main shaft (121) is rotatably mounted on the filter chamber (11), and the axis of the main shaft (121) is offset from the axis of the filter chamber (11). The support frame (122) is sleeved on the main shaft (121), and the drive end of the drive device (2) is connected to the main shaft (121) for transmission. The partition (123) is slidably mounted on the support frame (122), and each support frame (122) is provided with at least three partitions (123), and the multiple partitions (123) are distributed in a circular array along the axis of the main shaft (121); The elastic element (124) is mounted on the support frame (122), and both ends of the elastic element (124) are connected to the partition (123) and the support frame (122) respectively. The end of the partition (123) away from the support frame (122) abuts against the inner wall of the filter chamber (11) under the elastic force of the elastic element (124). The partition (123) divides the interior of the filter chamber (11) into at least three mutually isolated adsorption chambers.

3. A natural gas waste gas combustion furnace based on multi-stage combustion treatment according to claim 2, characterized in that, The drive unit (2) includes a connecting shaft (21) and a rotary drive assembly (22); The main shafts (121) on adjacent filter chambers (11) are coaxially connected via connecting shafts (21); The rotary drive assembly (22) is used to drive the connecting shaft (21) to rotate.

4. A natural gas waste gas combustion furnace based on multi-stage combustion treatment according to claim 3, characterized in that, The rotary drive assembly (22) includes a rotary driver (221), a first rotary gear (222), and a second rotary gear (223); The rotary actuator (221) is mounted on the outer wall of the combustion chamber (1); The first rotary gear (222) is sleeved on the drive end of the rotary driver (221); The second rotating gear (223) is sleeved on the connecting shaft (21), and the first rotating gear (222) and the second rotating gear (223) are meshed together.

5. A natural gas waste gas combustion furnace based on multi-stage combustion treatment according to claim 1, characterized in that, The filter chamber (11) has a side plate (111) at both ends, and the two side plates (111) are respectively provided with an air inlet pipe (1111) and an air outlet pipe (1112); The air inlet pipe (1111) and air outlet pipe (1112) of two adjacent filter chambers (11) are staggered.

6. A natural gas waste gas combustion furnace based on multi-stage combustion treatment according to claim 1, characterized in that, The filter chamber (11) is equipped with a viewing window (113) for observation.

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