Smoke guiding type anti-falling baffle door

Abstract

The invention belongs to the technical field of boiler equipment, and discloses a flue gas guiding type anti-falling baffle door which comprises a fixing frame and an economizer and further comprises a mounting mechanism, the mounting mechanism is arranged in the fixing frame, a baffle shell is arranged on the outer wall of the fixing frame through the mounting mechanism, and a flue groove is formed in the inner wall of the fixing frame; the sealing mechanism is arranged in the inner wall of the fixing frame; a buffer mechanism is arranged on the outer wall of the supporting rod; wherein the mounting mechanism comprises an air cylinder, and the movable end of the air cylinder is fixedly connected with a connecting block A; through cooperation of structures such as the L-shaped plate and the groove, the flange plate A and the flange plate B can be preliminarily fixed through clamping connection of the L-shaped plate and the groove, the flange plate A and the flange plate B are further fixed through bolts and nuts, the stability of the baffle shell is further improved through double fixation, and the problem that the baffle shell is prone to falling off due to vibration is solved.

Description

Technical Field

[0001] This invention belongs to the field of boiler equipment technology, specifically a flue gas guiding anti-fall-off baffle door. Background Technology

[0002] The flue gas guide damper at the economizer flue outlet is a device installed at the economizer flue outlet that controls the direction of flue gas flow and distributes flue gas flow by adjusting its own opening. Its main function is to guide the flue gas into different subsequent heat exchange equipment or channels as needed, so as to optimize the heat exchange efficiency and operating conditions of the boiler system.

[0003] In some existing technologies, baffle doors are usually fixed with bolts or hinges, which have good stability under normal circumstances. However, if they are operated in a high-temperature and corrosive flue gas environment for a long time, the components will age and wear. In addition, the economizer will vibrate during operation. Long-term vibration may cause the bolts to loosen and the hinges to break, which may lead to the risk of the baffle door falling off, affecting normal use or causing the risk of flue gas leakage. This requires maintenance by operators and incurs a lot of costs. Therefore, a flue gas guiding anti-falling baffle door is proposed to address the above problems. Summary of the Invention

[0004] To address the problems mentioned in the background section, the present invention provides a flue gas guiding anti-fall-off baffle door.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a flue gas guiding anti-fall-off baffle door, comprising a fixed frame and an economizer, and further comprising: an installation mechanism, wherein the installation mechanism is disposed in the fixed frame, the outer wall of the fixed frame is provided with a baffle shell through the installation mechanism, and the inner wall of the fixed frame is provided with a flue groove; a sealing mechanism, wherein the sealing mechanism is disposed in the inner wall of the fixed frame; and a support rod, wherein the outer wall of the support rod is provided with a buffer mechanism;

[0006] The installation mechanism includes a cylinder, with a connecting block A fixedly connected to the movable end of the cylinder, and a flange A fixedly connected to the outer wall of the connecting block A; the sealing mechanism includes an air cylinder, with a pressure plate slidably connected to the inner wall of the air cylinder, and a sliding rod fixedly connected to the outer wall of the pressure plate; the buffer mechanism includes a fixed plate, with a sliding plate slidably connected to the outer wall of the support rod, and a moving plate fixedly connected to the outer wall of the sliding plate.

[0007] Preferably, the inner wall of the connecting block A has a groove, the outer wall of the baffle shell is fixedly connected to a flange B, the outer wall of the flange B is fixedly connected to a connecting block B, the inner wall of the connecting block B is slidably connected to two sets of L-shaped plates, the two sets of L-shaped plates are elastically connected by a return spring, the outer wall of the L-shaped plate is hinged to a slider by a connecting rod, the outer wall of the slider is fixedly connected to a moving rod, and the outer wall of the moving rod is threadedly connected to a threaded ring.

[0008] Preferably, the cylinder is fixedly connected to the inner wall of the fixed frame, the flange A and the flange B are connected by bolts and threads, and the two ends of the return spring are fixedly connected to the outer walls of the two sets of L-shaped plates respectively.

[0009] Preferably, the two ends of the connecting rod are respectively hinged to the outer wall of the slider and the L-shaped plate, the slider is slidably connected in the inner wall of the connecting block B, and the moving rod is slidably connected in the inner wall of the connecting block B.

[0010] Preferably, an air supply pipe is fixedly connected to the outer wall of the air cylinder, a sealing airbag is fixedly connected to the inner wall of the fixing frame, and an arc-shaped groove is provided on the outer wall of the baffle shell.

[0011] Preferably, the air cylinder is fixedly connected to the inner wall of the fixed frame, the air supply pipe is fixedly connected to the outer wall of the sealing airbag, the slide rod is slidably connected to the inner wall of the air cylinder, the slide rod is fixedly connected to the outer wall of the flange A, and the sealing airbag is in contact with the inner wall of the arc groove.

[0012] Preferably, the outer wall of the movable plate is hinged to a bottom rod, the outer wall of the bottom rod is hinged to a hinge block A, the outer wall of the hinge block A is fixedly connected to an inner rod, the outer wall of the inner rod is fixedly connected to a rubber pad, the outer wall of the inner rod is slidably connected to a sleeve rod, the inner wall of the sleeve rod has a sliding groove, the outer wall of the sleeve rod is hinged to a hinge block B, the inner wall of the sleeve rod is fixedly connected to a buffer spring, the inner wall of the sliding plate is elastically connected to an insert rod through an elastic element, and the outer wall of the support rod has a slot.

[0013] Preferably, the fixing plate is fixedly connected to the outer wall of the support rod, the moving plate is slidably connected to the outer wall of the support rod, and the rubber pad is in contact with the inner wall of the groove.

[0014] Preferably, the buffer spring is fixedly connected to the outer wall of the rubber pad, and the insertion rod is engaged with the slot.

[0015] Preferably, one end of the elastic element is fixedly connected to the outer wall of the insertion rod, and the other end of the elastic element is fixedly connected to the inner wall of the sliding plate, and the insertion rod is slidably connected in the inner wall of the sliding plate.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] This invention, through the combination of L-shaped plates and grooves, allows for the initial fixation of flange A and flange B by inserting connecting block B into connecting block A and engaging the L-shaped plate with the groove. Subsequently, operators can further fix flange A and flange B with bolts and nuts to complete the installation of the baffle shell. This double fixation further improves the stability of the baffle shell and avoids the problem of the baffle shell easily falling off due to vibration.

[0018] This invention, through the cooperation of structures such as an air cylinder and a sealing airbag, when the moving end of the cylinder moves to close the baffle shell, it will simultaneously drive the pressure plate to move, forcing the air inside the air cylinder into the sealing airbag, causing the sealing airbag to bulge and fill the arc-shaped groove, thereby sealing the gap between the baffle shell and the flue groove and improving the sealing effect.

[0019] This invention utilizes a combination of a base rod and a movable plate. By moving the movable plate downwards, the buffer mechanism can be deployed. When the economizer vibrates during operation and the vibration is transmitted to the fixed frame, causing it to vibrate synchronously, the combination of the buffer spring and the rubber pad can achieve a good buffering effect, reducing the amplitude of the vibration. This avoids the problem of the baffle shell easily loosening and falling off due to long-term vibration. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the main structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the installation mechanism and buffer mechanism of the present invention;

[0022] Figure 3 This is a cross-sectional view of the fixed frame and an exploded structural diagram of the installation mechanism of the present invention.

[0023] Figure 4 This is an exploded cross-sectional view of the connecting block A, connecting block B, flange A, and flange B of the present invention.

[0024] Figure 5 This is a cross-sectional view of the air cylinder and a schematic diagram of the sealing mechanism of the present invention;

[0025] Figure 6 This is a cross-sectional view of the sleeve, slider, and exploded structural diagram of the support rod of the present invention;

[0026] Figure 7 For the present invention Figure 6 Enlarged structural diagram of section A.

[0027] In the diagram: 1. Fixed frame; 2. Mounting mechanism; 201. Cylinder; 202. Connecting block A; 203. Flange A; 204. Connecting block B; 205. Flange B; 206. Groove; 207. Return spring; 208. L-shaped plate; 209. Connecting rod; 210. Sliding block; 211. Moving rod; 212. Threaded ring; 3. Sealing mechanism; 301. Air cylinder; 302. Air supply pipe; 303. Sealing airbag; 304. Pressure plate; 30 5. Slide rod; 306. Arc groove; 4. Buffer mechanism; 401. Fixed plate; 402. Moving plate; 403. Bottom rod; 404. Hinge block A; 405. Inner rod; 406. Rubber pad; 407. Sleeve rod; 408. Hinge block B; 409. Slide groove; 410. Buffer spring; 411. Sliding plate; 412. Elastic element; 413. Insert rod; 414. Slot; 5. Support rod; 6. Baffle shell; 7. Flue duct; 8. Economizer. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] like Figures 1 to 7 As shown, the present invention provides a flue gas guiding anti-falling baffle door, including a fixed frame 1 and an economizer 8, and further including: an installation mechanism 2, which is disposed in the fixed frame 1, and a baffle shell 6 is provided on the outer wall of the fixed frame 1 through the installation mechanism 2, and a flue groove 7 is opened on the inner wall of the fixed frame 1; a sealing mechanism 3, which is disposed in the inner wall of the fixed frame 1; and a support rod 5, with a buffer mechanism 4 provided on the outer wall of the support rod 5;

[0030] The installation mechanism 2 includes a cylinder 201, with a connecting block A202 fixedly connected to the movable end of the cylinder 201, and a flange A203 fixedly connected to the outer wall of the connecting block A202; the sealing mechanism 3 includes an air cylinder 301, with a pressure plate 304 slidably connected to the inner wall of the air cylinder 301, and a slide rod 305 fixedly connected to the outer wall of the pressure plate 304; the buffer mechanism 4 includes a fixed plate 401, with a sliding plate 411 slidably connected to the outer wall of the support rod 5, and a moving plate 402 fixedly connected to the outer wall of the sliding plate 411.

[0031] Using the above scheme: the flue gas outlet pipe of the economizer 8 can be inserted into the flue trough 7 of the fixed frame 1, and the baffle shell 6 can be fixed to the outside of the fixed frame 1 by the installation mechanism 2, thus completing the installation of the flue baffle door. The installation mechanism 2 and the bolts provide a double fixing effect for the baffle shell 6, preventing the baffle shell 6 from falling off due to long-term vibration of the equipment. The outer wall of the baffle shell 6 is equipped with louvers, which can be rotated by an internal motor to guide the flue gas discharged from the economizer 8. The louvers are existing technology. After the flue gas pipe of the economizer 8 is inserted into the flue trough 7, it can... When the baffle shell 6 is closed to fit against the outer wall of the fixed frame 1, the sealing airbag 303 is in the arc groove 306, which can achieve a good sealing effect between the flue duct 7 and the baffle shell 6. The inflated sealing airbag 303 can seal the gap between the inner wall of the flue duct 7 and the baffle shell 6 to prevent dust in the flue gas from leaking out. The fixed frame 1 can be placed on the ground by the support rod 5. When the economizer 8 is running, the buffer mechanism 4 can be deployed. The buffer mechanism 4 can reduce the vibration of the fixed frame 1 caused by the operation of the economizer 8, and further reduce the possibility of the baffle shell 6 vibrating and falling off.

[0032] like Figures 3 to 4 As shown, the inner wall of the connecting block A202 has a groove 206. The outer wall of the baffle housing 6 is fixedly connected to the flange B205. The outer wall of the flange B205 is fixedly connected to the connecting block B204. The inner wall of the connecting block B204 is slidably connected to two sets of L-shaped plates 208. The two sets of L-shaped plates 208 are elastically connected by a return spring 207. The outer wall of the L-shaped plate 208 is hinged to a slider 210 through a connecting rod 209. The outer wall of the slider 210 is fixedly connected to a moving rod 211. The outer wall of the moving rod 211 is threadedly connected to a threaded ring 212.

[0033] Using the above scheme: Grooves 206 are symmetrically formed in the inner walls of both sides of the connecting block A202. The flange B205 on the outer wall of the baffle housing 6 and the movable end of the cylinder 201 are fixed between the flange A203 and the baffle housing 6, which can be connected and fixed with bolts and nuts. The baffle housing 6 is connected to the movable end of the cylinder 201. After the cylinder 201 is started, its movable end can drive the baffle housing 6 to move laterally, so that the baffle housing 6 contacts the outer wall of the fixed frame 1, thus completing the installation of the baffle housing 6. When connecting the flange B205 and the flange A203, the connecting block B204 can be inserted into the inner wall of the connecting block A202, and connected through the L-shaped plate 208 and... The groove 206 provides initial fixing, allowing for installation of the baffle housing 6 without additional support from other operators when tightening the bolts between flanges B205 and A203. This reduces manpower and workload. Furthermore, the L-shaped plate 208 and bolts provide dual fixing, further enhancing the stability of the baffle housing 6. Each set of L-shaped plates 208 is hinged with a connecting rod 209, which is hinged to the outer walls of both sides of the slider 210. Under normal conditions, the return spring 207 keeps the two sets of L-shaped plates 208 in a popped-out state due to its elasticity. At this time, the connecting rods 209... Figure 4 As shown; the outer wall of the moving rod 211 is provided with an internal thread, while the inner wall of the threaded ring 212 is provided with an external thread. The threaded ring 212 can rotate on the outer wall of the moving rod 211 and move on the outer wall of the moving rod 211 through the thread. The moving rod 211 can only move in the inner wall of the connecting block B204 and cannot rotate. The moving rod 211 penetrates the outer wall of the flange B205.

[0034] like Figures 3 to 4 As shown, cylinder 201 is fixedly connected to the inner wall of fixed frame 1. Flange A203 and flange B205 are connected by bolt threads. The two ends of return spring 207 are fixedly connected to the outer walls of two sets of L-shaped plates 208 respectively. The two ends of connecting rod 209 are hinged to the outer walls of slider 210 and L-shaped plate 208 respectively. Slider 210 is slidably connected to the inner wall of connecting block B204. Moving rod 211 is slidably connected to the inner wall of connecting block B204.

[0035] Using the above scheme: The fixed end of cylinder 201 is fixed in the inner wall of the fixed frame 1. When installing the baffle housing 6, cylinder 201 can be activated so that its movable end drives connecting block A202 and flange A203 outward. Connecting block B204 is aligned with the groove of connecting block A202 and inserted. Since L-shaped plate 208 is always in the pop-out state, the operator can rotate threaded ring 212 to move it away from flange B205 along the outer wall of moving rod 211. After moving rod 211 is disengaged from flange B205, moving rod 211 can be pulled outward, driving slider 210 to move synchronously, causing connecting rod 209 to move synchronously. The other end of connecting rod 209 drives L-shaped plate 208 to move. Since L-shaped plate 208 can only move laterally in the inner wall of connecting block B204, connecting rod 209 will flip and drive both sets of L-shaped plates 208 to move towards the middle at the same time, compressing return spring 207. At this time, the connecting rod 209 can be connected. Block B204 is inserted into the inner wall of connecting block A202. When connecting block B204 moves to the position where L-shaped plate 208 corresponds to the groove 206, the moving rod 211 can be released. Under the elastic force of the return spring 207, L-shaped plate 208 pops out to both sides and engages with groove 206 to complete the initial fixation. At this time, the threaded ring 212 can be rotated in the opposite direction to move it along the outer wall of the moving rod 211 towards the flange B205. When the threaded ring 212 rotates to the point where it is tightly fitted with the outer wall of flange B205 and can no longer rotate, the moving rod 211 can be limited, thereby fixing the position of the two sets of L-shaped plates 208. At this time, the operator can further tighten the flange A203 and flange B205 with bolts and nuts to ensure the installation stability of baffle housing 6. After installation, the movable end of cylinder 201 is retracted inward, which can drive the baffle housing 6 to move and fit against the outer wall of the fixing frame 1, completing the closing of baffle housing 6.

[0036] like Figure 3 and Figure 5 As shown, an air supply pipe 302 is fixedly connected to the outer wall of the air cylinder 301, a sealing airbag 303 is fixedly connected to the inner wall of the fixing frame 1, and an arc groove 306 is opened on the outer wall of the baffle shell 6.

[0037] Using the above scheme: the slide rod 305 in the sealing mechanism 3 can move synchronously with the flange A203. When the movable end of the cylinder 201 moves inward, the flange A203 drives the slide rod 305 to move synchronously to one side of the fixed frame 1, and the pressure plate 304 moves into the inner wall of the air cylinder 301. When the movable end of the cylinder 201 moves outward, the flange A203 will drive the slide rod 305 and the pressure plate 304 to move in opposite directions. The air cylinder 301 is connected to the sealing airbag 303 through the air supply pipe 302, and the slide rod 305... The movement of the pressure plate 304 inflates the sealing airbag 303. When the baffle housing 6 is in contact with the outer wall of the fixed frame 1, the sealing airbag 303 expands and fills the inner wall of the arc groove 306, thus sealing the gap between the flue groove 7 and the baffle housing 6, achieving a good sealing effect. After the pressure plate 304 moves to the innermost part of the air cylinder 301, the connection port between the air supply pipe 302 and the air cylinder 301 is located between the pressure plate 304 and the inner wall of one side of the air cylinder 301, so that the gas will not enter the slide rod 305.

[0038] like Figure 3 and Figure 5 As shown, the air cylinder 301 is fixedly connected to the inner wall of the fixed frame 1, the air supply pipe 302 is fixedly connected to the outer wall of the sealing air bag 303, the slide rod 305 is slidably connected to the inner wall of the air cylinder 301, the slide rod 305 is fixedly connected to the outer wall of the flange A203, and the sealing air bag 303 is in contact with the inner wall of the arc groove 306.

[0039] Using the above scheme: When the movable end of the cylinder 201 moves outward, the pressure plate 304 moves synchronously, which creates a negative pressure inside the air cylinder 301, drawing the air from the sealing airbag 303 into the air cylinder 301. At this time, the sealing airbag 303 is in a contracted state. Simultaneously, the baffle housing 6 can be disengaged from the outer wall of the fixed frame 1 for disassembly and maintenance. When the baffle housing 6 is moved towards the fixed frame 1, the movable end of the cylinder 201 will drive the pressure plate 304 to move into the inner wall of the air cylinder 301, delivering the gas in the air cylinder 301 to the sealing airbag 303 through the air supply pipe 302 to inflate it. When the baffle housing 6 is in contact with the fixed frame 1, the sealing airbag 303 is completely sealed. Thus, the sealing airbag 303 can be inflated while the baffle housing 6 is closed, eliminating the need for additional inflation and sealing operations, making it more convenient.

[0040] like Figure 6 and Figure 7As shown, the outer wall of the movable plate 402 is hinged to a bottom rod 403, the outer wall of the bottom rod 403 is hinged to a hinge block A404, the outer wall of the hinge block A404 is fixedly connected to an inner rod 405, the outer wall of the inner rod 405 is fixedly connected to a rubber pad 406, the outer wall of the inner rod 405 is slidably connected to a sleeve rod 407, the inner wall of the sleeve rod 407 is provided with a sliding groove 409, the outer wall of the sleeve rod 407 is hinged to a hinge block B408, the inner wall of the sleeve rod 407 is fixedly connected to a buffer spring 410, the inner wall of the sliding plate 411 is elastically connected to an insert rod 413 through an elastic element 412, and the outer wall of the support rod 5 is provided with a slot 414.

[0041] The above solution is adopted as follows: When the economizer 8 vibrates during operation, the fixed frame 1 and the support rod 5 will vibrate accordingly. The vibration amplitude can be reduced by the buffer mechanism 4, thereby avoiding the problem of the baffle shell 6 falling off due to vibration. When the buffer mechanism 4 is unfolded, one end of the bottom rod 403 can contact the ground. Vibration will cause the bottom rod 403 to drive the inner rod 405 to move in the inner wall of the sleeve rod 407. The buffer spring 410 and the rubber pad 406 can play a buffering role. The sliding plate 411 and the moving plate 402 can move up and down synchronously to unfold or retract the buffer mechanism 4. The slot 414 is provided with two sets, upper and lower, so that when the buffer mechanism 4 is unfolded or retracted, it can be fixed by the insertion rod 413 engaging with the slot 414.

[0042] like Figure 6 and Figure 7 As shown, the fixed plate 401 is fixedly connected to the outer wall of the support rod 5, the movable plate 402 is slidably connected to the outer wall of the support rod 5, the rubber pad 406 is in contact with the inner wall of the slide groove 409; the buffer spring 410 is fixedly connected to the outer wall of the rubber pad 406, and the insertion rod 413 is engaged with the slot 414; one end of the elastic member 412 is fixedly connected to the outer wall of the insertion rod 413, and the other end of the elastic member 412 is fixedly connected to the inner wall of the sliding plate 411, and the insertion rod 413 is slidably connected in the inner wall of the sliding plate 411.

[0043] Using the above scheme: After pulling the insertion rod 413 to disengage it from the upper slot 414, the elastic element 412 contracts under force, thus releasing the limit of the sliding plate 411. When it moves downward, it can drive the bottom rod 403 to flip. The hinge block A404, inner rod 405, sleeve rod 407 and hinge block B408 flip synchronously and are in an inclined state. The bottom rod 403 contacts the ground, unfolding the buffer mechanism 4. At this time, the insertion rod 413 corresponds to the position of the lower slot 414. After releasing the insertion rod 413, the elastic element 412 springs back. Under the action of force, the insertion rod 413 engages with the slot 414, fixing the state of the buffer mechanism 4. When vibration occurs, the bottom rod 403 drives the hinge block A404 and the inner rod 405 to move on the inner wall of the sleeve rod 407, compressing the buffer spring 410. The spring 410 slides through the rubber pad 406 and contacts the inner wall of the multiple slide grooves 409, generating deformation to increase friction and achieve a damping effect. This reduces the amplitude of movement of the inner rod 405, thereby buffering the vibration and reducing the amplitude of swaying caused by vibration, thus achieving a better buffering effect.

[0044] Working principle and usage process of this invention:

[0045] Place the fixed frame 1 in the preset position, align the flue gas outlet pipe of the economizer 8 with the flue duct 7, and insert the pipe into the flue duct 7 to complete the initial connection; start the cylinder 201, so that its movable end drives the connecting block A202 and the flange A203 to move outward, align the connecting block B204 of the baffle housing 6 with the connecting block A202, then rotate the threaded ring 212 to move it and disengage it from the outer wall of the flange B205, release the limit on the moving rod 211, pull the moving rod 211 outward, and drive the two sets of L-shaped plates 208 to retract towards the middle through the slider 210 and the connecting rod 209, insert the connecting block B204 into the inner wall of the connecting block A202.

[0046] When the connecting block B204 is inserted into place and the L-shaped plate 208 aligns with the groove 206, release the moving rod 211. The return spring 207 rebounds, causing the L-shaped plate 208 to pop out and engage with the groove 206, completing the initial fixation. Then, rotate the threaded ring 212 in the opposite direction to make it fit against the outer wall of the flange B205, locking the position of the moving rod 211. At this time, the operator can use bolts and nuts to fasten the flange A203 to the flange B205. Combined with the engagement structure of the L-shaped plate 208 and the groove 206, a double fixation is formed, preventing the baffle housing 6 from falling off due to vibration. Moreover, during installation, the operator does not need to support the baffle housing 6 before bolting, making it more convenient.

[0047] As the movable end of the cylinder 201 moves outward, the pressure plate 304 moves on the inner wall of the cylinder 301, creating a negative pressure inside the cylinder 301. Gas inside the sealing airbag 303 enters the cylinder 301, causing the sealing airbag 303 to contract. After the baffle housing 6 is installed, the movable end of the control cylinder 201 retracts inward, driving the baffle housing 6 to move towards the fixed frame 1 until the baffle housing 6 is in contact with the outer wall of the fixed frame 1.

[0048] During the movement of the movable end of the cylinder 201, the flange A203 drives the slide rod 305 and the pressure plate 304 to slide towards the inner wall of the air cylinder 301, pressing the gas into the sealing air bag 303 through the gas delivery pipe 302, causing the sealing air bag 303 to expand and fill the arc groove 306 of the baffle housing 6, sealing the gap between the flue groove 7 and the baffle housing 6, and preventing the leakage of flue gas and dust.

[0049] Next, pull the insertion rod 413 to release the limit of the sliding plate 411, move the sliding plate 411 downward, and drive the moving plate 402, bottom rod 403, inner rod 405 and sleeve rod 407 to flip until the bottom rod 403 touches the ground; at this time, the insertion rod 413 is aligned with the slot 414 below, and the elastic element 412 rebounds to make the insertion rod 413 snap into the slot 414, fixing the unfolded state of the buffer mechanism 4; when the economizer 8 vibrates during operation, the vibration of the fixed frame 1 is transmitted to the buffer mechanism 4 through the support rod 5, the bottom rod 403 drives the inner rod 405 to slide in the sleeve rod 407, the buffer spring 410 is compressed to absorb the vibration energy, and the rubber pad 406 contacts the inner wall of the slide groove 409 to generate deformation and friction, forming a damping effect, further reducing the vibration amplitude and reducing the risk of the baffle shell 6 falling off.

[0050] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0051] Although embodiments of the 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 these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A flue gas guiding anti-fall-off baffle door, comprising a fixed frame (1) and an economizer (8), characterized in that: Also includes: The installation mechanism (2) is set in the fixed frame (1). The outer wall of the fixed frame (1) is provided with a baffle shell (6) through the installation mechanism (2). The inner wall of the fixed frame (1) is provided with a flue groove (7). A sealing mechanism (3) is disposed in the inner wall of the fixed frame (1); Support rod (5), the outer wall of which is provided with a buffer mechanism (4); The installation mechanism (2) includes a cylinder (201), the movable end of the cylinder (201) is fixedly connected to a connecting block A (202), and the outer wall of the connecting block A (202) is fixedly connected to a flange A (203). The sealing mechanism (3) includes an air cylinder (301), a pressure plate (304) is slidably connected to the inner wall of the air cylinder (301), and a slide rod (305) is fixedly connected to the outer wall of the pressure plate (304). The buffer mechanism (4) includes a fixed plate (401), a sliding plate (411) is slidably connected to the outer wall of the support rod (5), and a movable plate (402) is fixedly connected to the outer wall of the sliding plate (411).

2. The flue gas guiding anti-fall-off baffle door according to claim 1, characterized in that: The inner wall of the connecting block A (202) is provided with a groove (206). The outer wall of the baffle shell (6) is fixedly connected to a flange B (205). The outer wall of the flange B (205) is fixedly connected to a connecting block B (204). The inner wall of the connecting block B (204) is slidably connected to two sets of L-shaped plates (208). The two sets of L-shaped plates (208) are elastically connected by a return spring (207). The outer wall of the L-shaped plate (208) is hinged to a slider (210) by a connecting rod (209). The outer wall of the slider (210) is fixedly connected to a moving rod (211). The outer wall of the moving rod (211) is threadedly connected to a threaded ring (212).

3. The flue gas guiding anti-fall-off baffle door according to claim 2, characterized in that: The cylinder (201) is fixedly connected to the inner wall of the fixed frame (1), the flange A (203) and the flange B (205) are connected by bolt threads, and the two ends of the return spring (207) are fixedly connected to the outer walls of the two sets of L-shaped plates (208) respectively.

4. The flue gas guiding anti-fall-off baffle door according to claim 2, characterized in that: The two ends of the connecting rod (209) are respectively hinged to the outer walls of the slider (210) and the L-shaped plate (208). The slider (210) is slidably connected in the inner wall of the connecting block B (204). The moving rod (211) is slidably connected in the inner wall of the connecting block B (204).

5. The flue gas guiding anti-fall-off baffle door according to claim 1, characterized in that: An air supply pipe (302) is fixedly connected to the outer wall of the air cylinder (301), a sealing airbag (303) is fixedly connected to the inner wall of the fixing frame (1), and an arc groove (306) is provided on the outer wall of the baffle shell (6).

6. The flue gas guiding anti-fall-off baffle door according to claim 5, characterized in that: The air cylinder (301) is fixedly connected to the inner wall of the fixed frame (1), the air supply pipe (302) is fixedly connected to the outer wall of the sealing airbag (303), the slide rod (305) is slidably connected to the inner wall of the air cylinder (301), the slide rod (305) is fixedly connected to the outer wall of the flange A (203), and the sealing airbag (303) is in contact with the inner wall of the arc groove (306).

7. The flue gas guiding anti-fall-off baffle door according to claim 1, characterized in that: The outer wall of the movable plate (402) is hinged to a bottom rod (403), the outer wall of the bottom rod (403) is hinged to a hinge block A (404), the outer wall of the hinge block A (404) is fixedly connected to an inner rod (405), the outer wall of the inner rod (405) is fixedly connected to a rubber pad (406), the outer wall of the inner rod (405) is slidably connected to a sleeve rod (407), the inner wall of the sleeve rod (407) is provided with a sliding groove (409), the outer wall of the sleeve rod (407) is hinged to a hinge block B (408), the inner wall of the sleeve rod (407) is fixedly connected to a buffer spring (410), the inner wall of the sliding plate (411) is elastically connected to an insert rod (413) through an elastic element (412), and the outer wall of the support rod (5) is provided with a slot (414).

8. The flue gas guiding anti-fall-off baffle door according to claim 7, characterized in that: The fixed plate (401) is fixedly connected to the outer wall of the support rod (5), the movable plate (402) is slidably connected to the outer wall of the support rod (5), and the rubber pad (406) is in contact with the inner wall of the groove (409).

9. The flue gas guiding anti-fall-off baffle door according to claim 7, characterized in that: The buffer spring (410) is fixedly connected to the outer wall of the rubber pad (406), and the insertion rod (413) is engaged with the slot (414).

10. The flue gas guiding anti-fall-off baffle door according to claim 7, characterized in that: One end of the elastic element (412) is fixedly connected to the outer wall of the insertion rod (413), and the other end of the elastic element (412) is fixedly connected to the inner wall of the sliding plate (411). The insertion rod (413) is slidably connected in the inner wall of the sliding plate (411).

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