A heating furnace convection chamber

Abstract

The utility model provides a kind of heating furnace convection chamber, including the convection chamber ontology with heat exchange pipe inside being provided, the air inlet of the convection chamber ontology is provided with flue gas treatment component, the flue gas treatment component includes the processing box installed at the air inlet of convection chamber ontology, the inside of the processing box is provided with filter screen;The flue gas treatment component further includes the top holding structure for supporting stable to filter screen and the knocking structure for removing residual dust on filter screen, the top holding structure includes a group of springs fixedly connected to the bottom surface of filter screen, the bottom end of a group The spring is commonly fixedly connected with support frame. Through the flue gas treatment component set, dust in flue gas can be filtered, dust particles attached to the outside of heat exchange pipe inside the convection chamber ontology can be reduced, the filtered dust particles can be conveniently removed, and the continuous treatment of flue gas will not be affected, and the risk of equipment leakage can be reduced.

Description

Technical Field

[0001] This utility model relates to the field of convection chamber technology, and in particular to a convection chamber for a heating furnace. Background Technology

[0002] The convection chamber of the heating furnace is the core component for recovering waste heat from flue gas in industrial heating furnace systems. It can efficiently transfer the heat carried by high-temperature flue gas to the medium inside the tube, thereby improving the waste heat recovery rate. It is widely used in scenarios such as atmospheric and vacuum furnaces in oil refineries, reaction feed heating furnaces in chemical plants, and heat medium furnaces in centralized heating stations, providing key equipment support for energy conservation and consumption reduction in industries such as petrochemicals, energy, and heating.

[0003] Application No. 202320419315.4 discloses a convection chamber for a heating furnace, which includes a convection chamber body and a flow-limiting box. A material pipe is coiled inside the convection chamber body. The convection chamber body is located at the upper end of the flow-limiting box. The convection chamber body and the flow-limiting box are connected through a manifold. This utility model has a reasonable structure and novel design. By adjusting the rotation angle of the structure, the flue gas entering the convection chamber body can be effectively regulated, avoiding the problem of heat waste caused by excessively fast flue gas transport, and making more efficient use of the waste heat of the flue gas.

[0004] The above-mentioned solution has shortcomings in use. When high-temperature flue gas is directly introduced into the convection chamber, the fly ash particles carried in the flue gas will gradually accumulate on the outer wall of the heat exchange tube, forming a porous and loose ash layer, which leads to increased thermal resistance and a significant decrease in heat exchange efficiency. At present, manual high-pressure water gun cleaning is commonly used, which not only requires frequent furnace shutdowns and disassembly of the convection chamber end cover, seriously affecting the continuity of production, but may also cause aging of the sealing structure due to repeated disassembly and assembly, increasing the risk of equipment leakage. Therefore, we provide a convection chamber for heating furnaces. Utility Model Content

[0005] This invention provides a convection chamber for a heating furnace, which solves the problem that when high-temperature flue gas is directly introduced into the convection chamber body, the fly ash particles carried in the flue gas will gradually accumulate on the outer wall of the heat exchange tube, forming a porous and loose ash layer, which leads to increased thermal resistance and a significant decrease in heat exchange efficiency. Currently, the commonly used method is manual high-pressure water gun cleaning, which not only requires frequent furnace shutdowns and disassembly of the convection chamber end cover, seriously affecting production continuity, but may also cause aging of the sealing structure due to repeated disassembly and assembly, increasing the risk of equipment leakage.

[0006] The purpose and effect of the present invention for a convection chamber of a heating furnace are achieved by the following specific technical means: a convection chamber of a heating furnace includes a convection chamber body with heat exchange tubes inside, and a flue gas treatment component is provided at the air inlet of the convection chamber body. The flue gas treatment component includes a treatment box installed at the air inlet of the convection chamber body, and a filter screen is provided inside the treatment box.

[0007] The flue gas treatment assembly also includes a support structure for stabilizing the filter screen and a striking structure for removing residual dust from the filter screen.

[0008] Preferably, the top support structure includes a set of springs fixedly connected to the bottom surface of the filter screen, and the bottom ends of the set of springs are fixedly connected to a support frame, the outer surface of the support frame being connected to the inner wall of the processing box.

[0009] Preferably, the striking structure includes a set of rotating rods rotatably connected to the inner wall of the processing chamber, and a set of eccentric wheels are fixedly connected to the outer surface of each rotating rod, with each eccentric wheel located above the filter screen.

[0010] Preferably, one end of each of the rotating rods passes through the processing box and is fixedly connected to a worm gear. A worm is meshed together below a group of worm gears. A motor is installed on one side of the processing box, and the output end of the motor is connected to one end of the worm gear for transmission.

[0011] Preferably, a collection hopper is fixedly connected to the bottom surface of the processing box, and an air inlet pipe is embedded in the collection hopper.

[0012] Preferably, the bottom end of the collecting hopper is connected to a dust discharge pipe, and a sealing valve is provided on the dust discharge pipe.

[0013] Preferably, a baffle is fixedly connected to the inner wall of the processing box, and the baffle is located above the output end of the air inlet pipe.

[0014] Preferably, a protective shell is fixedly connected to the right side of the processing box, and a heat dissipation vent is provided on the right side of the protective shell.

[0015] Beneficial effects:

[0016] 1. The flue gas treatment components can filter dust in the flue gas, reducing dust particles adhering to the heat exchange tubes inside the convection chamber. The filtered dust particles can be easily removed without affecting the continuous treatment of the flue gas, and the risk of equipment leakage can be reduced.

[0017] 2. The baffle can guide the falling dust and prevent it from falling into the air inlet pipe and causing blockage, thus ensuring the normal delivery of flue gas. The collection hopper can seal the bottom of the treatment box and guide the dust to the dust discharge pipe for easy dust removal. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model.

[0019] Figure 2This is a three-dimensional structural diagram of the flue gas treatment component of this utility model.

[0020] Figure 3 This is a three-dimensional structural schematic diagram of the processing box of this utility model, shown in a front sectional view.

[0021] Figure 4 This is a three-dimensional structural diagram of the filter screen of this utility model.

[0022] Figure 5 This is a three-dimensional structural diagram of the rotating rod of this utility model.

[0023] Figure 1-5 In the diagram, the correspondence between component names and drawing numbers is as follows:

[0024] 1. Convection chamber body; 2. Flue gas treatment assembly; 201. Treatment box; 202. Filter screen; 203. Spring; 204. Support frame; 205. Rotating rod; 206. Eccentric wheel; 207. Worm gear; 208. Worm; 209. Motor; 210. Collection hopper; 211. Air inlet pipe; 212. Dust exhaust pipe; 213. Baffle; 214. Protective shell. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0026] As attached Figure 1 As shown: A convection chamber of a heating furnace includes a convection chamber body 1 with heat exchange tubes installed inside. When flue gas enters the convection chamber body 1, the heat exchange tubes can absorb the heat in the flue gas.

[0027] As attached Figure 2 Appendix Figure 3 With appendix Figure 4 As shown: A flue gas treatment component 2 is provided at the air inlet of the convection chamber body 1. The flue gas treatment component 2 includes a treatment box 201 installed at the air inlet of the convection chamber body 1. A filter screen 202 is provided inside the treatment box 201. The filter screen 202 consists of a mesh frame and a filter screen, which can intercept dust in the flue gas, thereby reducing dust particles attached to the outside of the heat exchange tube.

[0028] As attached Figure 3 With appendix Figure 4As shown: The flue gas treatment assembly 2 also includes a top support structure for supporting and stabilizing the filter screen 202. The top support structure includes a set of springs 203 fixedly connected to the bottom surface of the filter screen 202. The bottom ends of the set of springs 203 are fixedly connected to a support frame 204. The outer surface of the support frame 204 is connected to the inner wall of the treatment box 201. The springs 203 can be fixed by the support frame 204, and the springs 203 will form an elastic support for the filter screen 202.

[0029] As attached Figure 3 With appendix Figure 5 As shown: A striking structure for removing residual dust from the filter screen 202. The striking structure includes a set of rotating rods 205 rotatably connected to the inner wall of the processing chamber 201. Each rotating rod 205 has a set of eccentric wheels 206 fixedly connected to its outer surface. Each eccentric wheel 206 is located above the filter screen 202. One end of each rotating rod 205 passes through the processing chamber 201 and is fixedly connected to a worm gear 207. A worm 208 is meshed below the set of worm gears 207. A motor 209 is mounted on one side of the processing chamber 201. The output end of the motor 209 is connected to one end of the worm 208 for transmission. When the motor 209 is working, it drives... The worm gear 208 rotates, which in turn drives the rotating rod 205 to rotate. The rotating rod 205 then drives the eccentric wheel 206 to rotate. The eccentric wheel 206 reciprocates and pushes the filter screen 202 to vibrate, causing the dust on the filter screen 202 to fall off, thus allowing the subsequent flue gas to flow normally into the convection chamber body 1. A protective shell 214 is fixedly connected to the right side of the treatment box 201. A heat dissipation vent is provided on the right side of the protective shell 214. The protective shell 214 can protect the motor 209 and ensure its normal operation. At the same time, the heat generated by the motor 209 can be dissipated from the heat dissipation vent.

[0030] As attached Figure 3 As shown: A collection hopper 210 is fixedly connected to the bottom of the treatment box 201. An air inlet pipe 211 is embedded in the collection hopper 210. The collection hopper 210 can seal the bottom of the treatment box 201 to prevent flue gas leakage. At the same time, the air inlet pipe 211 can be used to inject flue gas into the treatment box 201. A baffle 213 is fixedly connected to the inner wall of the treatment box 201. The baffle 213 is located above the output end of the air inlet pipe 211. The baffle 213 can block falling dust and prevent dust from entering the air inlet pipe 211 and causing blockage, thereby ensuring the normal delivery of flue gas. The bottom end of the collection hopper 210 is connected to a dust discharge pipe 212. A sealing valve is installed on the dust discharge pipe 212. The collection hopper 210 can collect falling dust and gather the dust at the dust discharge pipe 212. When cleaning the dust, the operator only needs to open the sealing valve, which can ensure continuous treatment of flue gas and reduce the risk of equipment leakage.

[0031] Working principle: During use, flue gas is injected into the processing box 201 through the inlet pipe 211. The filter screen 202 filters the flue gas, intercepting particulate dust. As dust accumulates on the filter screen 202, the motor 209 is activated. The motor 209 drives the worm gear 208 to rotate, which in turn drives the rotating rod 205 to rotate. The rotating rod 205 drives the eccentric wheel 206 to rotate, which in turn pushes the filter screen 202 back and forth, causing it to vibrate. The dust particles attached to the filter screen 202 fall off due to inertia and slide onto the collection hopper 210. They can then slide along the tilt angle of the collection hopper 210 to the dust discharge pipe 212. Operators only need to open the dust discharge pipe 212 periodically for cleaning. This does not affect the continuous heat exchange of the flue gas and further reduces the risk of equipment leakage.

Claims

1. A heating furnace convection chamber comprising a convection chamber body (1) in which heat exchange tubes are arranged internally, characterized in that: A flue gas treatment component (2) is provided at the air inlet of the convection chamber body (1). The flue gas treatment component (2) includes a treatment box (201) installed at the air inlet of the convection chamber body (1). A filter screen (202) is provided inside the treatment box (201). The flue gas treatment assembly (2) also includes a support structure for stabilizing the filter screen (202) and a striking structure for removing residual dust from the filter screen (202).

2. The furnace convection chamber of claim 1, wherein: The top support structure includes a set of springs (203) fixedly connected to the bottom surface of the filter screen (202). The bottom ends of the set of springs (203) are fixedly connected to a support frame (204). The outer surface of the support frame (204) is connected to the inner wall of the processing box (201).

3. The furnace convection chamber of claim 1, wherein: The striking structure includes a set of rotating rods (205) rotatably connected to the inner wall of the processing box (201). Each rotating rod (205) has a set of eccentric wheels (206) fixedly connected to its outer surface. Each eccentric wheel (206) is located above the filter screen (202).

4. The furnace convection chamber of claim 3, wherein: One end of each of the rotating rods (205) passes through the processing box (201) and is fixedly connected to a worm gear (207). A worm (208) is meshed together below a group of worm gears (207). A motor (209) is installed on one side of the processing box (201), and the output end of the motor (209) is connected to one end of the worm (208) for transmission.

5. The furnace convection chamber of claim 1, wherein: The bottom surface of the processing box (201) is fixedly connected to a collection hopper (210), and an air inlet pipe (211) is embedded in the collection hopper (210).

6. The furnace convection chamber of claim 5, wherein: The bottom end of the collection hopper (210) is connected to a dust discharge pipe (212), and a sealing valve is provided on the dust discharge pipe (212).

7. The furnace convection chamber of claim 1, wherein: The inner wall of the processing box (201) is fixedly connected to a baffle (213), which is located above the output end of the air inlet pipe (211).

8. The furnace convection chamber of claim 1, wherein: A protective shell (214) is fixedly connected to the right side of the processing box (201), and a heat dissipation vent is provided on the right side of the protective shell (214).

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