A waste gas purification device for a thermal power plant
The design of the sealing cover and support frame solves the problem of damage during the replacement of the air intake pipe, enabling a quick and convenient replacement process and improving the service life of the device.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LIHUAYI WEIYUAN CHEM CO LTD
- Filing Date
- 2025-05-14
- Publication Date
- 2026-06-05
AI Technical Summary
The existing exhaust gas purification equipment in thermal power plants requires cutting the connection points when replacing the air intake pipe, which can easily lead to damage and is time-consuming.
It adopts a structure of sealing cover plate, air intake pipe and support frame, and realizes quick disassembly and replacement of air intake pipe through threaded connection and support frame adjustment, avoiding cutting damage.
It simplifies the replacement process of the intake pipe, reduces maintenance time, protects the safety of the pipe, and extends the service life of the device.
Smart Images
Figure CN224321168U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of waste gas purification technology, specifically a waste gas purification device for thermal power plants. Background Technology
[0002] A thermal power plant is a coal-fired power plant that generates electricity while simultaneously using steam extracted or exhausted from a steam turbine to provide heat to users. The waste gas from a thermal power plant mainly comes from the flue gas generated by boiler combustion, the exhaust gas from the intermediate ash silo of the pneumatic ash conveying system, the dust-containing waste gas generated by the coal plant, and the coal dust generated by the coal yard, raw coal crushing, and coal transportation. Among these, the amount of flue gas generated by boiler combustion and the amount of pollutants it contains are far greater than those of other waste gases.
[0003] The prior art discloses a waste gas purification device for thermal power plants, application number CN202122554343.0, which includes a waste gas treatment tank. A dust suppression unit is fixedly installed on the outer wall of the waste gas treatment tank, and a cooling unit is fixedly installed inside the dust suppression unit. One end of the cooling unit is fixedly connected to an air inlet pipe. A purification unit is also provided inside the waste gas treatment tank, and an exhaust pipe is fixedly connected to the bottom of the waste gas treatment tank. In this utility model, waste gas is filtered by two sets of ring sleeves and filter plates. When routinely replacing the filter plates, the turntable is rotated so that the cover plate falls to the upper side of one set of ring sleeves and filter plates to close the waste gas passage. At this time, the ring sleeves can be removed from the outer wall of the waste gas treatment tank, and the purification of waste gas is maintained by the other set of ring sleeves and filter plates, so as to maintain the continuous purification of waste gas.
[0004] One end of the aforementioned cooling unit is fixedly connected to an air inlet pipe. When replacing the air inlet pipe, it needs to be cut, and cutting at the connection point can easily cause damage to the connection point, requiring a lot of time for repair. Utility Model Content
[0005] The purpose of this invention is to provide a waste gas purification device for thermal power plants to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a waste gas purification device for a thermal power plant, comprising an air inlet device and a waste gas purification shell, wherein a support base is installed on the bottom surface of the waste gas purification shell, the air inlet device is installed on the upper end of the waste gas purification shell, and a filter plate and an activated carbon layer are installed inside the waste gas purification shell, wherein the waste gas purification shell can perform filtration and purification operations on waste gas.
[0007] The air intake device includes a sealing cover, an air intake pipe, and a support frame. The air intake pipe is threaded to the back of the sealing cover and movably connected to the upper end of the support frame.
[0008] Preferably, the support frame includes a first limiting metal ring, a second limiting metal ring, a support frame, a support block, a movable roller, and a connector. The connector is movably connected to the lower end of the support block, the movable roller is slidably connected to the outward end of the connector, the movable roller is rotatably connected to the upper end of the support frame, the support frame is rotatably connected to the rearward end of the second limiting metal ring, and the first limiting metal ring is threadedly connected to the front side of the second limiting metal ring.
[0009] Preferably, there are two connectors, which are distributed at the left and right ends of the support block. The support block is inserted into the upper end of the connector, so that the connector and the bottom surface of the support block are aligned, thereby determining the position of the support block.
[0010] Preferably, the first limiting metal ring is movably connected to the lower end of the exhaust gas purification shell, and the second limiting metal ring is movably connected to the lower end of the exhaust gas purification shell. The first limiting metal ring and the second limiting metal ring are threaded together, thereby determining the positions of the first limiting metal ring and the second limiting metal ring, and thus determining the position of the support frame.
[0011] Preferably, the sealing cover is inserted into the upper end of the exhaust gas purification shell, and the air inlet pipe is inserted into the upper end of the exhaust gas purification shell, so that the exhaust gas can be input into the interior of the exhaust gas purification shell and purified by the filter plate and activated carbon layer inside the exhaust gas purification shell.
[0012] Preferably, the support block is movably connected to the outward end of the air intake pipe. The support block can be disassembled and replaced, thereby allowing support blocks of different lengths and specifications to be replaced, which can increase the service life of the device.
[0013] Preferably, there are two support frames, which are distributed on the left and right sides of the rear end of the second limiting metal ring. The support frames can rotate at the rear end of the second limiting metal ring, thereby adjusting the angle of the support frames and enabling support blocks of different specifications to be supported.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] This exhaust gas purification device for thermal power plants consists of a sealing cover, an air inlet pipe, and an exhaust gas purification shell. The sealing cover is inserted into the upper end of the exhaust gas purification shell, and then the air inlet pipe is pushed into the connection between the sealing cover and the exhaust gas purification shell. At the same time, the connection of the exhaust gas purification shell has a metal plate to seal the connection. This makes the disassembly and replacement of the air inlet pipe quick and convenient, eliminating the need to spend a lot of time cutting the air inlet pipe and shortening the time required to replace it.
[0016] This exhaust gas purification device for thermal power plants is equipped with a support block, a support frame, and movable rollers. The support block drives the support frame to slide on the inner wall surface of the support frame, thereby adjusting the position of the support block and supporting the intake pipe. This protects the intake pipe, prevents damage to the intake pipe, and increases the service life of the device. Attached Figure Description
[0017] Figure 1 This is a three-dimensional schematic diagram of the entire utility model;
[0018] Figure 2 This is a three-dimensional schematic diagram of the air intake device of this utility model;
[0019] Figure 3 This is a three-dimensional schematic diagram of the limiting metal ring, the supporting frame, and the supporting block of this utility model;
[0020] Figure 4 This is a side view of the support frame of this utility model;
[0021] Figure 5 This utility model Figure 4 Schematic diagram of the cross section at point AA;
[0022] Figure 6 This utility model Figure 5 A magnified schematic diagram of the structure at point A in the diagram.
[0023] In the diagram: 1. Air intake device; 11. Sealing cover; 12. Air intake pipe; 13. Support frame; 131. Limiting metal ring one; 132. Limiting metal ring two; 133. Support frame; 134. Support block; 135. Moving roller; 136. Connector; 2. Exhaust gas purification shell; 3. Support base. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0025] Please see Figure 1-6 The present invention provides the following technical solution:
[0026] A waste gas purification device for a thermal power plant includes an air inlet device 1 and a waste gas purification shell 2. A support base 3 is installed on the bottom surface of the waste gas purification shell 2. The air inlet device 1 is installed on the upper end of the waste gas purification shell 2. A filter plate and an activated carbon layer are installed inside the waste gas purification shell 2. The waste gas purification shell 2 can filter and purify waste gas.
[0027] The air intake device 1 includes a sealing cover plate 11, an air intake pipe 12, and a support frame 13. The air intake pipe 12 is threaded to the back of the sealing cover plate 11. The sealing cover plate 11 is inserted into the upper end of the exhaust gas purification housing 2. The air intake pipe 12 is inserted into the upper end of the exhaust gas purification housing 2, thereby enabling exhaust gas to be input into the interior of the exhaust gas purification housing 2 and purified by the filter plate and activated carbon layer inside the exhaust gas purification housing 2. The air intake pipe 12 is movably connected to the upper end of the support frame 13.
[0028] The support frame 13 includes a first limiting metal ring 131, a second limiting metal ring 132, a support frame 133, a support block 134, a movable roller 135, and a connector 136. The connector 136 is movably connected to the lower end of the support block 134, and the support block 134 is movably connected to the outward end of the air intake pipe 12. The support block 134 can be disassembled and replaced, allowing for the replacement of support blocks 134 of different lengths and specifications, thereby increasing the service life of the device. The movable roller 135 is slidably connected to the outward end of the connector 136. There are two connectors 136, distributed at the left and right ends of the support block 134. The support block 134 is inserted into the upper end of the connector 136, aligning the bottom surface of the connector 136 and the support block 134, thus determining the position of the support block 134. The movable roller 135 is rotatably connected to the support frame. At the upper end of the frame 133, there are two support frames 133, which are distributed on the left and right sides of the rear end of the second limiting metal ring 132. The support frames 133 rotate at the rear end of the second limiting metal ring 132, thereby adjusting the angle of the support frames 133 and supporting support blocks 134 of different specifications. The support frames 133 are rotatably connected to the rear end of the second limiting metal ring 132. The first limiting metal ring 131 is threadedly connected to the front of the second limiting metal ring 132. The first limiting metal ring 131 is movably connected to the lower end of the exhaust gas purification shell 2. The second limiting metal ring 132 is movably connected to the lower end of the exhaust gas purification shell 2. The threads between the first limiting metal ring 131 and the second limiting metal ring 132 determine the position of the first limiting metal ring 131 and the second limiting metal ring 132, thereby determining the position of the support frame 133.
[0029] In use, push the limiting metal ring 131 and the limiting metal ring 132 to move towards each other, so that the limiting metal ring 131 and the limiting metal ring 132 are inserted into the lower end of the exhaust gas purification shell 2, so that the limiting metal ring 131 and the limiting metal ring 132 are threadedly connected, thereby fixing the limiting metal ring 131, the limiting metal ring 132 and the exhaust gas purification shell 2 with threads.
[0030] Push the support frame 133 downward, and the support frame 133 and the rear end of the limiting metal ring 132 are movably connected. Then push the metal rod so that the metal rod is inserted into the connection between the limiting metal ring 132 and the support frame 133, thereby determining the position of the limiting metal ring 132.
[0031] By pushing the connector 136 into the upper end of the support frame 133, the position of the support frame 133 can be initially determined. Then, the moving roller 135 is pushed into the interior of the upper end of the support frame 133, while the support frame 133 is sleeved on the outward end of the connector 136, thereby determining the positions of the connector 136 and the moving roller 135.
[0032] Pushing the support block 134 to the lower end, the support block 134 is inserted into the interior of the connector 136, thereby determining the position of the support block 134.
[0033] Push the sealing cover 11 downwards so that it is inserted into the upper end of the exhaust gas purification housing 2. Then rotate the nut to fix the exhaust gas purification housing 2 and the sealing cover 11 together with the thread, thereby determining the position of the sealing cover 11.
[0034] Push the intake pipe 12 into the connection between the sealing cover plate 11 and the exhaust gas purification shell 2, and then turn the nut. The nut can fix the sealing cover plate 11, the exhaust gas purification shell 2 and the intake pipe 12 with threads. At the same time, the upper end of the intake pipe 12 is connected to the support block 134, so that the intake pipe 12 can be supported and the safety of the intake pipe 12 can be protected.
[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A waste gas purification device for a thermal power plant, comprising an air inlet device (1) and a waste gas purification housing (2), characterized in that: A support base (3) is installed on the bottom surface of the exhaust gas purification shell (2), and the air intake device (1) is installed on the upper end of the exhaust gas purification shell (2). The air intake device (1) includes a sealing cover (11), an air intake pipe (12) and a support frame (13). The air intake pipe (12) is threaded to the back of the sealing cover (11) and is movably connected to the upper end of the support frame (13).
2. The waste gas purification device for a thermal power plant according to claim 1, characterized in that: The support frame (13) includes a first limiting metal ring (131), a second limiting metal ring (132), a support frame (133), a support block (134), a movable roller (135), and a connector (136). The connector (136) is movably connected to the lower end of the support block (134). The movable roller (135) is slidably connected to the outward end of the connector (136). The movable roller (135) is rotatably connected to the upper end of the support frame (133). The support frame (133) is rotatably connected to the rearward end of the second limiting metal ring (132). The first limiting metal ring (131) is threadedly connected to the front of the second limiting metal ring (132).
3. The exhaust gas purification device for a thermal power plant according to claim 2, characterized in that: The number of the connectors (136) is two, and the two connectors (136) are distributed at the left and right ends of the support block (134).
4. The exhaust gas purification device for a thermal power plant according to claim 3, characterized in that: The first limiting metal ring (131) is movably connected to the lower end of the exhaust gas purification shell (2), and the second limiting metal ring (132) is movably connected to the lower end of the exhaust gas purification shell (2).
5. The exhaust gas purification device for a thermal power plant according to claim 4, characterized in that: The sealing cover (11) is inserted into the upper end of the exhaust gas purification shell (2), and the air inlet pipe (12) is inserted into the upper end of the exhaust gas purification shell (2).
6. The exhaust gas purification device for a thermal power plant according to claim 5, characterized in that: The support block (134) is movably connected to the outward end of the air intake pipe (12).
7. A waste gas purification device for a thermal power plant according to claim 6, characterized in that: The number of the support frames (133) is two, and the two support frames (133) are distributed on the left and right sides of the rear end of the limiting metal ring (132).