Device for accelerating upward smoke expelling

Abstract

The invention relates to the technical field of smoke exhaust equipment, and discloses a device for accelerating upward smoke displacement, a horizontal flue and a vertical flue, the horizontal flue is communicated with the vertical flue, the vertical flue is provided with a moving block used for changing the cross sectional area of the vertical flue, and when the smoke flow in the vertical flue is decreased, the moving block is used for changing the cross sectional area of the vertical flue. A movable block is arranged in the vertical flue, the movable block moves towards the interior of the vertical flue, a sleeve is arranged on the horizontal flue, the bottom end of the sleeve is communicated with the horizontal flue, a piston plate used for detecting the flue gas flow is installed in the sleeve in a sliding mode, and the piston plate is in transmission connection with the movable block. And when the flue gas flow in the horizontal flue and the vertical flue is reduced, the moving block gradually moves towards the interior of the vertical flue, and the flow area in the vertical flue is gradually reduced, so that the gas flow rate in the vertical flue is increased, the gas in the vertical flue flows towards a fixed direction, the flue gas is prevented from wandering in situ, and the practicability of the device is improved.

Description

Technical Field

[0001] The invention relates to the technical field of smoke exhaust equipment, in particular to a device for accelerating upward smoke expulsion. Background Art

[0002] The density of hot air is smaller than that of cold air, which will produce upward buoyancy. In the flue, the density of flue gas is lower than that of the surrounding air due to its higher temperature, thus generating a pressure difference under the action of gravity, namely thermal pressure. Thermal pressure forces the flue gas to flow upward along the flue and be discharged from the top of the building. The temperature difference between the inside and outside of the flue is the key factor affecting the thermal pressure. The greater the temperature difference, the more obvious the thermal pressure effect and the better the exhaust effect.

[0003] When the smoke flow rate in the existing smoke exhaust duct is reduced, the smoke flow velocity in the smoke duct is correspondingly slowed down, causing part of the smoke to linger and diffuse in the smoke duct, and part of the smoke cannot be discharged to the outside in time, resulting in poor smoke duct emission effect; therefore, it does not meet the existing needs, and we have proposed a device to accelerate the upward smoke expulsion. Summary of the invention

[0004] The present invention provides a device for accelerating upward smoke expulsion, which has the function of automatically reducing the flow area of ​​the flue when the smoke flow rate in the flue is reduced, thereby increasing the flow rate of the smoke and preventing the smoke from lingering and diffusing in the flue. The smoke discharge effect of the flue is better, and solves the problem mentioned in the above background technology that when the smoke flow rate in the existing smoke exhaust duct is reduced, the smoke flow rate in the flue is correspondingly slowed down, causing part of the smoke to linger and diffuse in the flue, and part of the smoke cannot be discharged to the outside in time, resulting in poor smoke discharge effect.

[0005] The present invention provides the following technical solution: a device for accelerating upward smoke expulsion, comprising a horizontal flue and a vertical flue, wherein the horizontal flue is connected to the vertical flue, and a moving block for changing the cross-sectional area of ​​the vertical flue is provided on the vertical flue, and when the smoke flow in the vertical flue decreases, the moving block moves toward the inside of the vertical flue; The horizontal flue is provided with a sleeve, the bottom end of which is communicated with the horizontal flue, a piston plate for detecting flue gas flow rate is slidably installed in the sleeve, and the piston plate is drivingly connected with the moving block.

[0006] As an optional solution of the device for accelerating upward smoke expulsion described in the present invention, wherein: a plurality of positioning rods are installed on the side of the vertical flue, a moving plate is installed on the side of the moving block, and the moving plate is slidably installed on the positioning rods; A vertical plate is installed at one end of the positioning rod away from the vertical flue, and a No. 1 compression spring is connected between the vertical plate and the movable plate, and the No. 1 compression spring is slidably sleeved on the positioning rod.

[0007] As an optional solution of the device for accelerating upward smoke expulsion described in the present invention, wherein: a through hole No. 1 for balancing the pressure inside and outside the sleeve is opened at the top of the sleeve; A sealing box is arranged on the side of the vertical flue, a No. 2 through hole is opened on the moving block, and the sealing box and the No. 2 through hole are communicated with the vertical flue.

[0008] As an optional solution of the device for accelerating upward smoke expulsion described in the present invention, wherein: a No. 1 pull rod is installed on the side of the moving block, a pull rope is installed at one end of the No. 1 pull rod, a No. 2 pull rod is installed on the piston plate, the No. 2 pull rod passes through the sleeve, and the other end of the pull rope is fixedly connected to the No. 2 pull rod; A support rod is installed on the side of the sealing box, and a guide wheel for guiding the pull rope is rotatably installed at one end of the support rod away from the vertical flue. The guide wheel is configured as a pulley with a groove, and the pull rope is slidably engaged in the groove of the guide wheel.

[0009] As an optional solution of the device for accelerating upward smoke discharging described in the present invention, a slide groove is arranged inside the vertical flue, a brush plate is slidably installed in the slide groove, and a plurality of brush heads for cleaning the moving block are arranged on the brush plate.

[0010] As an optional solution of the device for accelerating upward smoke expulsion described in the present invention, wherein: a No. 2 compression spring is installed in the slide groove, and the other end of the No. 2 compression spring is in contact with the brush plate; A moving rod is slidably installed on one side of the vertical flue, a No. 1 protrusion is arranged at one end of the moving rod, and a plurality of No. 2 protrusions are arranged at one end of the brush plate. Both the No. 2 protrusion and the No. 1 protrusion are arranged to be protrusions with semicircular cross-sections, and the No. 2 protrusion is in sliding contact with the arc surface of the No. 1 protrusion.

[0011] As an optional solution of the device for accelerating upward smoke expulsion described in the present invention, wherein: a No. 1 flat plate is installed at the bottom of the movable plate, L-shaped plates are installed at both ends of the No. 1 flat plate, a No. 2 flat plate is slidably installed between a pair of the L-shaped plates, a No. 3 compression spring is connected between the No. 1 flat plate and the No. 2 flat plate, and a plurality of No. 1 wedge blocks are arranged at the bottom of the No. 2 flat plate; A fixing plate is installed at one end of the moving rod away from the No. 1 protrusion, a contact plate for engaging with the No. 1 wedge block is hinged at the top of the fixing plate, a No. 1 torsion spring is arranged at the bottom of the contact plate, one end of the No. 1 torsion spring is connected to the fixing plate, and the other end of the No. 1 torsion spring is connected to the contact plate; A limit plate is installed on the moving rod, a return spring is arranged on the side of the limit plate, and the other end of the return spring contacts the outer wall of the vertical flue.

[0012] As an optional solution of the device for accelerating upward smoke expulsion described in the present invention, wherein: an inclined flue is provided on the horizontal flue, the bottom end of the inclined flue is connected to the horizontal flue, and the top end of the inclined flue is connected to the vertical flue; A mounting plate is provided in the horizontal flue, and a rotating plate for opening and closing the inclined flue is hinged at the bottom end of the mounting plate; A No. 2 torsion spring is arranged at the bottom end of the mounting plate, one end of the No. 2 torsion spring is connected to the mounting plate, and the other end of the No. 2 torsion spring is connected to the rotating plate.

[0013] As an optional solution of the device for accelerating upward smoke expulsion described in the present invention, wherein: a heat conduction plate is installed on the side of the vertical flue, an air bag is arranged on one side of the heat conduction plate, a support plate is installed on the horizontal flue, a No. 1 pressure rod is slidably installed on the support plate, a pressure plate is installed at one end of the No. 1 pressure rod, the pressure plate is in contact with the air bag, and a No. 2 wedge block is installed at the other end of the No. 1 pressure rod; A No. 2 pressure rod is slidably mounted on the horizontal flue, a No. 3 wedge block is arranged on the top of the No. 2 pressure rod, the No. 3 wedge block is slidably matched with the inclined surface of the No. 2 wedge block, and the bottom end of the No. 2 pressure rod abuts against the rotating plate; A movable plate is arranged on the second pressure rod, and a fourth compression spring is connected between the movable plate and the vertical flue.

[0014] As an optional solution of the device for accelerating upward smoke exhaust described in the present invention, a sealing cloth is arranged at the bottom end of the mounting plate, one end of the sealing cloth is connected to the mounting plate, and the other end of the sealing cloth is connected to the rotating plate, and the sealing cloth is arranged to be an inorganic fiber cloth.

[0015] The present invention has the following beneficial effects: 1. The device for accelerating upward smoke expulsion, when the smoke flow in the horizontal flue and the vertical flue is large, the gas flow rate in the horizontal flue is faster, so the pressure in the horizontal flue is less than the external pressure, the piston plate moves downward under the action of atmospheric pressure, thereby driving the No. 2 pull rod to move downward, the No. 2 pull rod pulls the No. 1 pull rod through the pull rope, so that the No. 1 pull rod moves away from the vertical flue, and the moving block moves toward the outside of the vertical flue, and finally the flow area of ​​the vertical flue becomes larger due to the removal of the moving block to adapt to the smoke with a large flow; When the flue gas flow in the horizontal flue and the vertical flue decreases, the gas flow rate in the horizontal flue decreases, and the pressure in the horizontal flue increases accordingly, making the pressure in the horizontal flue greater than the external pressure. The piston plate moves upward, and the pull rope becomes loose, so that the moving plate moves toward the vertical flue under the action of No. 1 compression spring, and the moving block gradually moves toward the inside of the vertical flue. The flow area inside the vertical flue gradually decreases, thereby increasing the gas flow rate in the vertical flue, making the gas in the vertical flue flow in a fixed direction, preventing the smoke from lingering in place, improving the smoke exhaust effect of the vertical flue, and increasing the practicability of the device.

[0016] 2. The device for accelerating upward smoke expulsion, when the moving block is continuously moved out of the vertical flue, the wedge-shaped block No. 1 arranged at the bottom of the No. 2 flat plate is intermittently engaged with the contact plate, and at the same time, with the cooperation of the reset spring, the moving rod reciprocates, and further, the No. 1 protrusion installed at the other end of the moving rod slides relative to the No. 2 protrusion, and the brush plate reciprocates under the action of the No. 2 compression spring, and at the same time, the brush head installed on the brush plate cleans the bottom of the moving block, thereby reducing carbon deposits and stains on the bottom of the moving block, preventing the increase of resistance between the moving block and the vertical flue during the movement, making the moving block move more smoothly, and increasing the reliability of the device.

[0017] 3. The device for accelerating upward smoke expulsion, when the smoke flow in the vertical flue decreases, the temperature in the vertical flue will decrease accordingly. At this time, the air bag arranged on the side of the heat conduction plate will shrink due to the decrease in temperature, and the pressure plate will no longer conflict with it due to the shrinkage of the air bag. Therefore, the No. 2 wedge block installed at one end of the No. 1 pressure rod no longer has a limiting effect on the No. 3 wedge block, and the No. 2 pressure rod and the movable plate move upward under the action of the No. 4 pressure spring. At the same time, the bottom end of the No. 2 pressure rod no longer limits the rotating plate, and the rotating plate rotates under the action of the No. 2 torsion spring, the inclined flue opens, and the gas in the horizontal flue directly enters the vertical flue from the inclined flue to heat the vertical flue, thereby increasing the temperature difference between the vertical flue and the outside world, increasing the vertical flue's suction force on smoke, and further increasing the practicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0019] Figure 2 It is a schematic diagram of the cross-sectional structure of the present invention.

[0020] Figure 3 It is a schematic diagram of the structure inside the sealed box of the present invention.

[0021] Figure 4 It is a schematic diagram of the cross-sectional structure of the vertical flue of the present invention.

[0022] Figure 5 For the present invention Figure 4Schematic diagram of the enlarged structure at point A in the middle.

[0023] Figure 6 It is a schematic diagram of the three-dimensional structure of the first plate and the second plate of the present invention.

[0024] Figure 7 It is a schematic diagram of the cross-sectional structure of the first plate and the second plate of the present invention.

[0025] Figure 8 For the present invention Figure 2 Schematic diagram of the enlarged structure at point B in the middle.

[0026] Fig. 9 It is a schematic diagram of the cross-sectional structure of the horizontal flue of the present invention.

[0027] In the figure: 101, horizontal flue; 102, vertical flue; 201, sealing box; 202, No. 1 pull rod; 203, pull rope; 204, guide wheel; 205, support rod; 206, No. 2 pull rod; 207, sleeve; 208, No. 1 through hole; 209, moving block; 210, vertical plate; 211, No. 1 compression spring; 212, positioning rod; 213, moving plate; 214, No. 2 through hole; 215, piston plate; 301, brush plate; 302, moving rod; 303, brush head; 304, slide groove; 305, No. 2 compression spring; 306, No. 1 convex block; 307, No. 2 convex block; 308, fixed plate ; 309, contact plate; 310, No. 2 flat plate; 311, L-shaped plate; 312, No. 1 flat plate; 313, No. 3 compression spring; 314, No. 1 wedge block; 315, No. 1 torsion spring; 316, limit plate; 317, return spring; 401, inclined flue; 402, air bag; 403, pressure plate; 404, No. 1 pressure rod; 405, support plate; 406, No. 4 compression spring; 407, movable plate; 408, heat conduction plate; 409, No. 2 pressure rod; 410, rotating plate; 411, No. 2 wedge block; 412, No. 3 wedge block; 413, sealing cloth; 414, mounting plate; 415, No. 2 torsion spring. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] Embodiment 1: This embodiment aims to solve the problem that when the smoke flow rate in the existing smoke exhaust duct is reduced, the smoke flow rate in the smoke duct is correspondingly slowed down, so that part of the smoke lingers and diffuses in the smoke duct, and part of the smoke cannot be discharged to the outside in time, resulting in poor smoke duct emission effect. Please refer to Figures 1 to 9A device for accelerating upward smoke expulsion includes a horizontal flue 101 and a vertical flue 102. The horizontal flue 101 is connected to the vertical flue 102. A moving block 209 for changing the cross-sectional area of ​​the vertical flue 102 is provided on the vertical flue 102. When the smoke flow in the vertical flue 102 decreases, the moving block 209 moves toward the inside of the vertical flue 102. A sleeve 207 is provided on the horizontal flue 101. The bottom end of the sleeve 207 is connected to the horizontal flue 101. A piston plate 215 for detecting the smoke flow is slidably installed in the sleeve 207. The piston plate 215 is transmission-connected to the moving block 209.

[0030] It should be noted that according to the principles of fluid mechanics, under a stable flow state, the mass of fluid passing through any cross-section of the flow tube per unit time is constant, which means that when the fluid flows through areas with different flow areas, in order to ensure the constant mass flow rate, there is an inverse proportional relationship between the flow area and the flow velocity, that is, as the flow area decreases, the fluid must pass through the area at a faster speed to ensure that the mass of the fluid passing through the area remains consistent in the same time. Therefore, the present device can reduce the flow area in the vertical flue 102 by moving the moving block 209 into the vertical flue 102, thereby achieving the effect of increasing the flow velocity. When the flow velocity in the vertical flue 102 increases, the airflow direction of the vertical flue 102 will become more obvious, preventing the smoke from lingering and diffusing in the vertical flue 102.

[0031] It should be noted that “the pressure is lower where the flow rate is higher” is a property of the fluid. Therefore, when the flue gas flow in the horizontal flue 101 and the vertical flue 102 is larger, the gas flow rate in the horizontal flue 101 is faster, so the pressure in the horizontal flue 101 is lower than the external pressure, and the piston plate 215 moves downward under the action of atmospheric pressure.

[0032] For details, please refer to Figure 3 A plurality of positioning rods 212 are installed on the side of the vertical flue 102, a moving plate 213 is installed on the side of the moving block 209, the moving plate 213 is slidably installed on the positioning rod 212, a vertical plate 210 is installed on the end of the positioning rod 212 away from the vertical flue 102, a No. 1 compression spring 211 is connected between the vertical plate 210 and the moving plate 213, and the No. 1 compression spring 211 is slidably sleeved on the positioning rod 212.

[0033] In order to balance the pressure inside and outside the sleeve 207, a through hole No. 1 208 is opened at the top of the sleeve 207, a sealing box 201 is set on the side of the vertical flue 102, and a through hole No. 2 214 is opened on the moving block 209. The sealing box 201 and the through hole No. 2 214 are connected with the vertical flue 102. Therefore, the pressure on both sides of the moving block 209 (that is, the sealing box 201 and the vertical flue 102) is always the same, preventing the low pressure generated by the flue gas flowing quickly through the vertical flue 102 from affecting the displacement of the moving block 209.

[0034] In addition, a pull rod No. 202 is installed on the side of the sealing box 201, and a pull rope 203 is installed at one end of the pull rod No. 1 202. A pull rod No. 206 is installed on the piston plate 215. The pull rod No. 206 passes through the sleeve 207, and the other end of the pull rope 203 is fixedly connected to the pull rod No. 2 206. A support rod 205 is installed on the side of the vertical flue 102. A guide wheel 204 for guiding the pull rope 203 is rotatably installed at one end of the support rod 205 away from the vertical flue 102. The guide wheel 204 is configured as a pulley with a groove, and the pull rope 203 slides and engages in the groove of the guide wheel 204.

[0035] In this embodiment: when the flue gas flow in the horizontal flue 101 and the vertical flue 102 is large, the gas flow rate in the horizontal flue 101 is fast, so the pressure in the horizontal flue 101 is less than the external pressure, and the piston plate 215 moves downward under the action of atmospheric pressure, thereby driving the second pull rod 206 to move downward, and the second pull rod 206 pulls the first pull rod 202 through the pull rope 203, so that the first pull rod 202 moves away from the vertical flue 102, and the moving block 209 moves toward the outside of the vertical flue 102. Finally, due to the removal of the moving block 209, the flow area of ​​the vertical flue 102 becomes larger to adapt to the flue gas with a larger flow rate. When the water When the flue gas flow in the horizontal flue 101 and the vertical flue 102 decreases, the gas flow rate in the horizontal flue 101 decreases, and the pressure in the horizontal flue 101 increases accordingly, making the pressure in the horizontal flue 101 greater than the external pressure. The piston plate 215 moves upward, and the pull rope 203 becomes loose, so that the movable plate 213 moves toward the vertical flue 102 under the action of the No. 1 compression spring 211, and the movable block 209 gradually moves toward the inside of the vertical flue 102. The flow area inside the vertical flue 102 gradually decreases, thereby increasing the gas flow rate in the vertical flue 102, making the smoke flow in a fixed direction, preventing the smoke from wandering in place, thereby increasing the practicality of the device.

[0036] Embodiment 2: This embodiment is intended to solve the problem that after long-term use of the device, carbon deposits and oil stains will accumulate at the bottom of the moving block 209, resulting in increased resistance between the moving block 209 and the vertical flue 102, and the moving block 209 will not move smoothly. This embodiment is an improvement made on the basis of embodiment 1. For details, please refer to Figures 1 to 9 A slide groove 304 is arranged inside the vertical flue 102 , a brush plate 301 is slidably installed in the slide groove 304 , and a plurality of brush heads 303 for cleaning the moving block 209 are arranged on the brush plate 301 .

[0037] Among them, please refer to Figure 4 , Figure 5A No. 2 compression spring 305 is installed in the slide groove 304, and the other end of the No. 2 compression spring 305 is in conflict with the brush plate 301. A moving rod 302 is slidably installed on one side of the vertical flue 102, and a No. 1 protrusion 306 is provided at one end of the moving rod 302. A plurality of No. 2 protrusions 307 are provided at one end of the brush plate 301. The No. 2 protrusion 307 and the No. 1 protrusion 306 are both configured as protrusions with semicircular cross-sections, and the No. 2 protrusion 307 is in sliding contact with the arc surface of the No. 1 protrusion 306.

[0038] Also, please refer to Figure 6 , Figure 7 A No. 1 flat plate 312 is installed at the bottom of the movable plate 213, and L-shaped plates 311 are installed at both ends of the No. 1 flat plate 312. A No. 2 flat plate 310 is slidably installed between the pair of L-shaped plates 311. A No. 3 compression spring 313 is connected between the No. 1 flat plate 312 and the No. 2 flat plate 310. A plurality of No. 1 wedge blocks 314 are arranged at the bottom of the No. 2 flat plate 310. A fixed plate 308 is installed at the end of the movable rod 302 away from the No. 1 protrusion 306. The fixed plate A contact plate 309 is hinged at the top of 308 for engaging with the wedge block No. 1 314, and a torsion spring No. 1 315 is arranged at the bottom of the contact plate 309. One end of the torsion spring No. 1 315 is connected to the fixed plate 308, and the other end of the torsion spring No. 1 315 is connected to the contact plate 309. A limit plate 316 is installed on the moving rod 302, and a return spring 317 is arranged on the side of the limit plate 316. The other end of the return spring 317 contacts the outer wall of the vertical flue 102.

[0039] Specifically, when the moving block 209 moves in the direction of the vertical plate 210, the first wedge block 314 set on the second flat plate 310 is engaged with the contact plate 309, thereby pulling the moving rod 302 to move in the direction of the vertical plate 210. When the moving rod 302 moves to the maximum displacement, the contact plate 309 rotates, and the first wedge block 314 and the contact plate 309 are no longer engaged. The moving rod 302 is reset under the tension of the first torsion spring 315, thereby completing a reciprocating motion cycle of the moving rod 302. During the reciprocating motion of the moving rod 302, the first wedge block 314 set on the moving rod 302 is engaged with the contact plate 309. The No. 1 protrusion 306 at the end is in sliding contact with the arc surface of the No. 2 protrusion 307, and the brush plate 301 moves back and forth under the action of the No. 2 compression spring 305, thereby improving the cleaning effect of the brush plate 301 on the moving block 209. In addition, when the moving block 209 moves away from the vertical plate 210, the contact plate 309 contacts the inclined surface of the No. 1 wedge block 314, and the No. 2 flat plate 310 and the No. 1 wedge block 314 overcome the elastic force of the No. 3 compression spring 313 and move upward, so that the No. 1 wedge block 314 is staggered with the contact plate 309 while moving, so that the No. 1 wedge block 314 can move smoothly.

[0040] In the present embodiment: when the moving block 209 is continuously moved out of the vertical flue 102, the wedge block No. 1 314 arranged at the bottom of the flat plate No. 2 310 is intermittently engaged with the abutment plate 309, and at the same time, with the cooperation of the reset spring 317, the moving rod 302 reciprocates, and further, the protrusion No. 1 306 and the protrusion No. 2 307 installed at the other end of the moving rod 302 slide relative to each other, and the brush plate 301 reciprocates under the action of the compression spring No. 2 305, and at the same time, the brush head 303 installed on the brush plate 301 cleans the bottom of the moving block 209, thereby reducing carbon deposits and stains at the bottom of the moving block 209, and preventing the moving block 209 from increasing resistance with the vertical flue 102 during movement, so that the moving block 209 moves more smoothly, thereby increasing the reliability of the device.

[0041] Embodiment 3: This embodiment is intended to promote the solution of the problem that the temperature in the vertical flue 102 is low at the initial stage and the stage when the flue gas is about to be discharged, so that the temperature difference between the vertical flue 102 and the outside is not obvious, which is not conducive to the smooth rise of the flue gas in the vertical flue 102. This embodiment is an improvement made on the basis of embodiment 2. For details, please refer to Figures 1 to 9 An inclined flue 401 is arranged on the horizontal flue 101, the bottom end of the inclined flue 401 is connected to the horizontal flue 101, and the top end of the inclined flue 401 is connected to the vertical flue 102. A mounting plate 414 is arranged in the horizontal flue 101, and a rotating plate 410 for opening and closing the inclined flue 401 is hinged at the bottom end of the mounting plate 414. A No. 2 torsion spring 415 is arranged at the bottom end of the mounting plate 414, one end of the No. 2 torsion spring 415 is connected to the mounting plate 414, and the other end of the No. 2 torsion spring 415 is connected to the rotating plate 410.

[0042] Also, please refer to Figure 2 A heat conducting plate 408 is installed on the side of the vertical flue 102, and an air bag 402 for detecting the temperature change in the vertical flue 102 is arranged on one side of the heat conducting plate 408, wherein the gas in the air bag 402 is set to be nitrogen, and a support plate 405 is installed on the horizontal flue 101, and a No. 1 pressure rod 404 is slidably installed on the support plate 405, and a pressure plate 403 is installed at one end of the No. 1 pressure rod 404, and the pressure plate 403 is in conflict with the air bag 402, and the No. 1 pressure rod 40 A No. 2 wedge block 411 is installed at the other end, a No. 2 pressure rod 409 is slidably installed on the horizontal flue 101, a No. 3 wedge block 412 is arranged on the top of the No. 2 pressure rod 409, the No. 3 wedge block 412 is slidably matched with the inclined surface of the No. 2 wedge block 411, the bottom end of the No. 2 pressure rod 409 is in contact with the rotating plate 410, a movable plate 407 is arranged on the No. 2 pressure rod 409, and a No. 4 compression spring 406 is connected between the movable plate 407 and the vertical flue 102.

[0043] In daily life, the temperature inside the vertical flue 102 is generally between 50° and 150°. In specific implementation, the airbag 402 can be a silicone rubber airbag, which can be used in an environment with a temperature of 200°. Therefore, it can be set on the side of the heat conductive plate 408 to detect temperature changes in the vertical flue 102.

[0044] Please refer to Figure 8 A sealing cloth 413 is provided at the bottom end of the mounting plate 414. The sealing cloth 413 is set to be a high-temperature resistant inorganic fiber cloth. Specifically, basalt fiber cloth can be selected. The basalt fiber cloth has good stability at a temperature of 500°. One end of the sealing cloth 413 is connected to the mounting plate 414, and the other end of the sealing cloth 413 is connected to the rotating plate 410. The sealing cloth 413 is used to block the stain particles in the smoke to prevent the stains from contaminating the hinge position of the mounting plate 414 and the rotating plate 410, thereby ensuring that the rotating plate 410 can rotate smoothly.

[0045] It should be noted that in actual production and life, in order to improve the utilization rate of space, right-angle flues are often used, and generally multiple horizontal flues 101 share one vertical flue 102. Therefore, the vertical flue 102 will produce more carbon deposits due to the sharing of multiple horizontal flues 101. Therefore, when the flue gas flow in the horizontal flue 101 is large, this device chooses to close the inclined flue 401, so that a large amount of high-temperature flue gas enters the vertical flue 102 from the horizontal flue 101, and the high-temperature flue gas oxidizes and removes the carbon deposits in the vertical flue 102.

[0046] In this embodiment, when the smoke flow in the vertical flue 102 decreases, the temperature in the vertical flue 102 will decrease accordingly. At this time, the airbag 402 arranged on the side of the heat conducting plate 408 will shrink due to the decrease in temperature. The pressure plate 403 will no longer conflict with it due to the shrinkage of the airbag 402. Therefore, the second wedge block 411 installed at one end of the first pressure rod 404 no longer has a limiting effect on the third wedge block 412. The second pressure rod 409 and the movable plate 407 are connected to the fourth compression spring 408. 6, and at the same time, the bottom end of the second pressure rod 409 no longer limits the rotating plate 410. The rotating plate 410 rotates under the action of the second torsion spring 415, and the inclined flue 401 is opened. The gas in the horizontal flue 101 directly enters the vertical flue 102 from the inclined flue 401 to heat the vertical flue 102, thereby increasing the temperature difference between the vertical flue 102 and the outside world, increasing the smoke suction of the vertical flue 102, and further increasing the practicality of the device.

[0047] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0048] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A device for accelerating upward smoke expulsion, comprising a horizontal flue (101) and a vertical flue (102), wherein the horizontal flue (101) is connected to the vertical flue (102), and characterized in that: The vertical flue (102) is provided with a moving block (209) for changing the cross-sectional area of ​​the vertical flue (102); when the flue gas flow rate in the vertical flue (102) decreases, the moving block (209) moves toward the inside of the vertical flue (102); A sleeve (207) is provided on the horizontal flue (101), the bottom end of the sleeve (207) being in communication with the horizontal flue (101), a piston plate (215) for detecting flue gas flow rate being slidably mounted in the sleeve (207), and the piston plate (215) being drivingly connected to the moving block (209).

2. The device for accelerating upward smoke removal according to claim 1, characterized in that: A plurality of positioning rods (212) are installed on the side of the vertical flue (102), a moving plate (213) is installed on the side of the moving block (209), and the moving plate (213) is slidably installed on the positioning rods (212); A vertical plate (210) is installed at one end of the positioning rod (212) away from the vertical flue (102), a first compression spring (211) is connected between the vertical plate (210) and the movable plate (213), and the first compression spring (211) is slidably sleeved on the positioning rod (212).

3. The device for accelerating upward smoke removal according to claim 1, characterized in that: A through hole (208) for balancing the internal and external pressures of the sleeve (207) is provided at the top end of the sleeve (207); A sealing box (201) is provided on the side of the vertical flue (102), a second through hole (214) is provided on the moving block (209), and the sealing box (201), the second through hole (214) and the vertical flue (102) are in communication.

4. The device for accelerating upward smoke removal according to claim 3, characterized in that: A first pull rod (202) is installed on the side of the moving block (209), a pull rope (203) is installed on one end of the first pull rod (202), a second pull rod (206) is installed on the piston plate (215), the second pull rod (206) passes through the sleeve (207), and the other end of the pull rope (203) is fixedly connected to the second pull rod (206); A support rod (205) is installed on the side of the sealing box (201), and a guide wheel (204) for guiding the pull rope (203) is rotatably installed at one end of the support rod (205) away from the vertical flue (102), and the guide wheel (204) is configured as a pulley with a groove, and the pull rope (203) is slidably engaged in the groove of the guide wheel (204).

5. The device for accelerating upward smoke removal according to claim 1, characterized in that: A slide groove (304) is provided inside the vertical flue (102), a brush plate (301) is slidably mounted in the slide groove (304), and a plurality of brush heads (303) for cleaning the moving block (209) are provided on the brush plate (301).

6. The device for accelerating upward smoke removal according to claim 5, characterized in that: A second compression spring (305) is installed in the slide groove (304), and the other end of the second compression spring (305) is in contact with the brush plate (301); A moving rod (302) is slidably mounted on one side of the vertical flue (102), a first protrusion (306) being arranged at one end of the moving rod (302), and a plurality of second protrusions (307) being arranged at one end of the brush plate (301), the second protrusions (307) and the first protrusions (306) both being configured as protrusions with semicircular cross-sections, and the second protrusions (307) are in sliding contact with the arcuate surfaces of the first protrusions (306).

7. The device for accelerating upward smoke removal according to claim 6, characterized in that: A No. 1 plate (312) is installed at the bottom of the movable plate (213), L-shaped plates (311) are installed at both ends of the No. 1 plate (312), a No. 2 plate (310) is slidably installed between the pair of L-shaped plates (311), a No. 3 compression spring (313) is connected between the No. 1 plate (312) and the No. 2 plate (310), and a plurality of No. 1 wedge blocks (314) are arranged at the bottom of the No. 2 plate (310); A fixing plate (308) is installed at one end of the moving rod (302) away from the No. 1 protrusion (306), a top end of the fixing plate (308) is hingedly connected with a contact plate (309) for engaging with the No. 1 wedge block (314), a No. 1 torsion spring (315) is arranged at the bottom of the contact plate (309), one end of the No. 1 torsion spring (315) is connected to the fixing plate (308), and the other end of the No. 1 torsion spring (315) is connected to the contact plate (309); A limit plate (316) is installed on the moving rod (302), a return spring (317) is arranged on the side of the limit plate (316), and the other end of the return spring (317) contacts the outer wall of the vertical flue (102).

8. The device for accelerating upward smoke removal according to claim 1, characterized in that: An inclined flue (401) is provided on the horizontal flue (101), the bottom end of the inclined flue (401) is connected to the horizontal flue (101), and the top end of the inclined flue (401) is connected to the vertical flue (102); A mounting plate (414) is provided in the horizontal flue (101), and a rotating plate (410) for opening and closing the inclined flue (401) is hingedly connected to the bottom end of the mounting plate (414); A No. 2 torsion spring (415) is disposed at the bottom end of the mounting plate (414); one end of the No. 2 torsion spring (415) is connected to the mounting plate (414), and the other end of the No. 2 torsion spring (415) is connected to the rotating plate (410).

9. The device for accelerating upward smoke removal according to claim 8, characterized in that: A heat conducting plate (408) is installed on the side of the vertical flue (102), an air bag (402) is arranged on one side of the heat conducting plate (408), a support plate (405) is installed on the horizontal flue (101), a first pressure rod (404) is slidably installed on the support plate (405), a pressure plate (403) is installed on one end of the first pressure rod (404), the pressure plate (403) is in contact with the air bag (402), and a second wedge block (411) is installed on the other end of the first pressure rod (404); A No. 2 pressure rod (409) is slidably mounted on the horizontal flue (101), a No. 3 wedge block (412) is disposed at the top of the No. 2 pressure rod (409), the No. 3 wedge block (412) is slidably matched with the inclined surface of the No. 2 wedge block (411), and the bottom end of the No. 2 pressure rod (409) is in contact with the rotating plate (410); A movable plate (407) is provided on the second pressure rod (409), and a fourth pressure spring (406) is connected between the movable plate (407) and the vertical flue (102).

10. The device for accelerating upward smoke removal according to claim 8, characterized in that: A sealing cloth (413) is provided at the bottom end of the mounting plate (414), one end of the sealing cloth (413) is connected to the mounting plate (414), and the other end of the sealing cloth (413) is connected to the rotating plate (410), and the sealing cloth (413) is configured as an inorganic fiber cloth.

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