Filtering protection structure of fire-fighting smoke exhaust fan

Abstract

The utility model discloses a filtering protection structure of a fire-fighting smoke exhaust fan, which relates to the technical field of smoke exhaust fans, and comprises a protection cylinder, a fixing frame is arranged in the protection cylinder, a fan assembly is arranged in the fixing frame, a metal wire mesh is detachably connected to the inner wall of one side of the protection cylinder, and the inner wall of the other side of the protection cylinder is provided with an air inlet. A first fixing ring is fixedly installed at one end of the protection cylinder, a second fixing ring is detachably connected to the outer surface of the first fixing ring, and through cooperation between a metal wire mesh and a rotating plate, when the smoke exhaust fan is started, the metal wire mesh can reduce combustible ashing substances sucked into the pipeline; when the smoke exhaust fan is started, the rotating plate can be opened under the action of wind power and opened to the maximum angle under the action of wind power, at the moment, smoke can be normally exhausted, the service life of the smoke exhaust fan is not prone to being affected by the outside, the function of filtering and protecting the smoke exhaust fan is achieved, and the service life of the smoke exhaust fan is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of smoke exhaust fan, concretely is fire smoke exhaust fan filter protection structure. BACKGROUND

[0002] Fire smoke exhaust fan belongs to a part of fire smoke exhaust system, mainly including casing, motor and impeller and other components, when working, the wind power formed through the rotation of the impeller can exhaust the smoke inside the building to the outdoor, has the advantages of intelligent control and high temperature resistance, is usually installed in high -rise building, industrial plant or underground space, can quickly exhaust the toxic and harmful gas, creates the favorable condition for building fire extinguishing.

[0003] The fire smoke exhaust fan in the prior art comprises an external protection cylinder and an internal fan assembly and other components, wherein the protection cylinder is connected with each layer inside the building through a ventilation pipeline, can exhaust the internal smoke when working, and the gas circulates in the internal protection cylinder when working, but the protection cylinder in the prior art does not have a structure for filtering and protecting the smoke exhaust fan, the service life of the smoke exhaust fan is easily affected by the outside, the smoke exhaust fan is easily affected by external small animals when not working, for example, mice and insects can climb up the fan assembly and damage the fan assembly, and combustible ash can be sucked into the internal protection cylinder when starting, at this time, the burning material can affect the smoke exhaust fan and reduce the service life of the smoke exhaust fan.

[0004] Therefore, the fire smoke exhaust fan filter protection structure is provided to solve the above problems. CONTENT OF THE UTILITY MODEL

[0005] I) Technical problem solved

[0006] The utility model discloses fire smoke exhaust fan filter protection structure, through the cooperation between metal wire mesh and rotating plate, the problem that the service life of smoke exhaust fan is easily affected by the outside is solved.

[0007] II) Technical scheme

[0008] In order to realize the above object, the utility model provides the following technical scheme: fire smoke exhaust fan filter protection structure, including protection cylinder, the inside installation of protection cylinder has the fixed frame, the inside installation of fixed frame has the fan assembly, the one side inner wall of protection cylinder is detachably connected with metal wire mesh;

[0009] One end of the protection cylinder is fixedly installed with a fixed ring one, the outer surface of the fixed ring one is detachably connected with a fixed ring two, the outer surface of the fixed ring two is fixedly installed with a fixed cylinder, one end of the fixed cylinder is fixedly installed with a protection box, a plurality of support bearings are installed in the protection box, the support bearings are connected with fixed shafts, the outer surface of the fixed shafts is slidably connected with fixed rods, and the outer surface of the fixed rods is fixedly installed with rotating plates.

[0010] Further, the metal wire mesh is located at the air inlet position of the fan assembly, the metal wire mesh is of an alloy material and has a ceramic coating sprayed on the outer surface.

[0011] Further, the fixed ring two and the protection box are located at the air outlet position of the fan assembly, and the support bearings and the rotating plates are vertically arranged in the protection box.

[0012] Further, the fixed rods are symmetrically provided with fixed grooves in the interiors, the outer surfaces of the fixed shafts are slidably connected with the interiors of the fixed grooves, the outer surfaces of the fixed shafts are fixedly installed with moving plates, springs are fixedly installed on the inner walls of the fixed grooves, and the other ends of the springs are fixedly installed with the one end of the fixed shafts.

[0013] Further, the outer surface of the rotating plate is fixedly installed with a connecting block one, the connecting block one is hingedly connected with a connecting rod, one end of the connecting rod is hingedly connected with a connecting block two, and the outer surface of the connecting block two is fixedly installed with a control plate.

[0014] Further, a limiting frame is fixedly installed in the interior of the fixed cylinder, a U-shaped groove is formed in the interior of the limiting frame, an auxiliary wheel is slidably connected with the interior of the U-shaped groove, and the support shaft of the auxiliary wheel is rotatably connected with the interior of the control plate.

[0015] III) Beneficial effects:

[0016] Compared with the prior art, the fire-fighting smoke exhaust fan filtering protection structure has the following beneficial effects:

[0017] I. The fire-fighting smoke exhaust fan filtering protection structure, through the cooperation between the metal wire mesh and the rotating plate, the metal wire mesh can reduce the combustible ash into the pipeline when the smoke exhaust fan starts, reducing the impact on the service life of the smoke exhaust fan, and when the smoke exhaust fan is closed, the rotating plate will be closed under its own gravity, which can close the air outlet of the smoke exhaust fan, reducing the impact of external birds or insects on the smoke exhaust fan. When the smoke exhaust fan starts, the rotating plate can be opened under the action of wind force and opened to the maximum angle under the action of wind force, at which time the smoke can be normally discharged, the service life of the smoke exhaust fan is not easily affected by the outside, and the function of filtering and protecting the smoke exhaust fan is realized, which is beneficial to improving the service life of the smoke exhaust fan.

[0018] II. The fire smoke exhaust fan filter protection structure, through the setting spring and control board and other components, the fixed shaft can be moved in the fixed rod by the spring, when the fixed rod two sides are fixed by the fixed shaft and the fixed bearing, the rotating plate can be quickly installed, vice versa, the rotating plate can be synchronized disassembled, the positioning maintenance oiling is facilitated, the control plate drives the connecting rod to control the synchronous rotation of multiple rotating plates, relying on the strong driving force of the fan can drive the whole set of rotating plates to rotate at the same time, reduce the influence of single rotating plate under the action of resistance, use the thrust of the whole set of rotating plates to improve the exhaust capacity. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the specific embodiment of the present application or the technical scheme in the prior art, the drawings needed to be used in the specific embodiment or the prior art description will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, various elements or parts are not necessarily drawn according to the actual proportion.

[0020] Figure 1 It is the overall structure diagram of the present application;

[0021] Figure 2 It is the overall split structure diagram of the present application;

[0022] Figure 3 It is the protection box component structure diagram of the present application;

[0023] Figure 4 It is the partial enlarged view A of the present application Figure 3 in the drawing;

[0024] Figure 5 It is the internal structure diagram of the protection box of the present application;

[0025] Figure 6 It is the partial enlarged view B of the present application Figure 5 in the drawing.

[0026] In the drawing: 1, protection cylinder; 2, fixed frame; 3, fan assembly; 4, metal wire mesh; 5, fixed ring one; 6, fixed ring two; 7, fixed cylinder; 8, protection box; 9, supporting bearing; 10, fixed shaft; 11, fixed rod; 12, rotating plate; 13, fixed groove; 14, moving plate; 15, spring; 16, connecting block one; 17, connecting rod; 18, connecting block two; 19, control board; 20, limiting frame; 21, U-shaped groove; 22, auxiliary wheel. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0028] As shown in Figure 1 - Figure 6 The utility model provides a technical scheme: fire-fighting smoke exhaust fan filter protection structure, including the protection cylinder 1, the inside installation of protection cylinder 1 has the fixed frame 2, the inside installation of fixed frame 2 has the fan assembly 3, the inside wall of one side of protection cylinder 1 is detachably connected with the metal wire net 4, and the metal wire net 4 is located at the air inlet position of fan assembly 3, the metal wire net 4 is alloy material and is sprayed with ceramic coating on the outer surface, and the main material of metal wire net 4 is hastelloy, has good corrosion resistance in high temperature flue gas, can improve the fire resistance requirement of smoke exhaust fan when operating in high temperature environment, can reduce the dust adhesion of dust on the wire net by spraying composite coating on the outer surface, improves the service life of metal wire net 4, and the metal wire net 4 can reduce the combustible ash suction into the pipeline inside when the smoke exhaust fan starts, reduces the influence on the service life of smoke exhaust fan, and the motor rotation in fan assembly 3 can control the rotation of impeller when working, can assist the discharge of building internal flue gas.

[0029] One end of protection cylinder 1 is fixedly installed with a fixed ring one 5, the outer surface of fixed ring one 5 is detachably connected with a fixed ring two 6, the outer surface of fixed ring two 6 is fixedly installed with a fixed cylinder 7, one end of fixed cylinder 7 is fixedly installed with a protection box 8, and fixed ring two 6 and protection box 8 are located at the air outlet position of fan assembly 3. Protection box 8 is connected to the outside of protection cylinder 1 by a plurality of fixed bolts, can be communicated with the air outlet position of protection cylinder 1, and the flue gas can be discharged outside the inside of protection box 8 when discharging flue gas.

[0030] A plurality of sets of supporting bearings 9 are mounted in the interior of the protection box 8, the inner part of the supporting bearings 9 is connected with a fixed shaft 10, the fixed shaft 10 is a stepped structure, the end towards the outside is smaller in diameter, facilitating clamping installation, the outer surface of the fixed shaft 10 is slidingly connected with a fixed rod 11, the interior of the fixed rod 11 is symmetrically provided with a fixed groove 13, the outer surface of the fixed shaft 10 is slidingly connected with the interior of the fixed groove 13, the outer surface of the fixed shaft 10 is fixedly installed with a moving plate 14, the inner wall of the fixed groove 13 is fixedly installed with a spring 15, the other end of the spring 15 is fixedly installed with the one end of the fixed shaft 10, under the pushing of the spring 15, the fixed shaft 10 can move towards the outside of the fixed rod 11, the fixed shaft 10 is provided at both ends of the fixed rod 11, when the fixed rod 11 is installed, the fixed shaft 10 can be pushed into the interior of the supporting bearings 9, wherein the supporting bearings 9 are high-temperature-resistant bearings, filled with high-temperature-resistant lubricating grease, when the fixed shaft 10 is connected with the interior of the supporting bearings 9, it can rotate, through the connection of the limiting groove and the moving plate 14, the moving position of the fixed shaft 10 can be limited.

[0031] The outer surface of the fixed rod 11 is fixedly installed with a rotating plate 12, the supporting bearings 9 and the rotating plate 12 are vertically arranged in the interior of the protection box 8, the rotating plate 12 is made of high-temperature-resistant stainless steel material, which can continuously work without deformation and failure in high-temperature environment, for example, 304 stainless steel main material, when installed, the upper and lower rotating plates 12 are in 45° inclined structure, the upper and lower rotating plates 12 will close the outside of the protection box 8 under their own gravity, preventing external small animals or insects from entering the interior of the protection cylinder 1, the outer surface of the rotating plate 12 should be sprayed with fireproof paint to improve the overall fire resistance.

[0032] The outer surface of the rotating plate 12 is fixedly installed with a connecting block one 16, the interior of the connecting block one 16 is hingedly connected with a connecting rod 17, one end of the connecting rod 17 is hingedly connected with a connecting block two 18, the outer surface of the connecting block two 18 is fixedly installed with a control panel 19, a plurality of sets of rotating plates 12 can be synchronously rotated under the action of the control panel 19 and the connecting rod 17, the connecting rod 17 can be driven by the control panel 19 to control the synchronous rotation of the plurality of sets of rotating plates 12, relying on the strong driving force of the fan to drive the whole set of rotating plates 12 to rotate simultaneously, reducing the influence of the single set of rotating plates 12 under the action of resistance, using the thrust of the whole set of rotating plates 12 to improve the exhaust capacity, under the action of wind force, the rotating plate 12 rotates fully open and parallel to the airflow direction, reducing the resistance loss during work.

[0033] The inside of the fixing cylinder 7 is fixedly provided with a limiting frame 20, the inside of the limiting frame 20 is provided with a U-shaped groove 21, the inside of the U-shaped groove 21 is slidably connected with an auxiliary wheel 22, the supporting shaft of the auxiliary wheel 22 is rotatably connected with the inside of the control plate 19, the limiting frame 20 and the auxiliary wheel 22 can assist in limiting the movement of the control plate 19, the supporting shaft of the auxiliary wheel 22 is connected with the inside of the control plate 19 through a sealing bearing, the inside of the sealing bearing is provided with a lubricating function, thereby improving the stability of the control plate 19 during movement.

[0034] Working principle: when the rotating plate 12 is installed, the auxiliary wheel 22 is connected with the U-shaped groove 21 in the inside of the limiting frame 20, then the fixed shaft 10 is moved and enters the inside of the supporting bearing 9, under the pushing of the spring 15, the two ends of the fixed rod 11 can be assisted and positioned, at this time, a plurality of rotating plates 12 are inclined at 45° under the action of gravity and close the inside of the protection box 8, the metal wire mesh 4 is installed in the other end of the protection cylinder 1, the closing of the rotating plate 12 can reduce the entry of external small animals and insects, the metal wire mesh 4 can reduce the combustible ash into the pipeline, when the fan assembly 3 is started, under the pushing of the wind force, the rotating plate 12 is opened to a position parallel to the airflow direction, at this time, the flue gas can be discharged in the inside of the protection cylinder 1 and the protection box 8, when the airflow stops flowing, the rotating plate 12 is automatically closed under the action of gravity.

[0035] In the description of the present application, it should be understood that the terms "left", "right", "up", "down", "top", "bottom", "front", "back", "inner", "outer", "back", "middle" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the present application.

[0036] The above-mentioned is only a specific embodiment of the present application, which cannot limit the scope of the present application, so the replacement of equivalent components or equivalent changes and modifications made within the scope of the present application are still within the scope of the present application.

Claims

1. A filter protection structure for a smoke exhaust fan of a fire protection system, comprising a protection cylinder (1), characterized in that: The inside of the protection cylinder (1) is provided with a fixing frame (2), the inside of the fixing frame (2) is provided with a fan assembly (3), and the inner wall of one side of the protection cylinder (1) is detachably connected with a metal wire mesh (4). One end of the protection cylinder (1) is fixedly provided with a fixed ring I (5), the outer surface of the fixed ring I (5) is detachably connected with a fixed ring II (6), the outer surface of the fixed ring II (6) is fixedly provided with a fixed cylinder (7), one end of the fixed cylinder (7) is fixedly provided with a protection box (8), the inside of the protection box (8) is provided with a plurality of supporting bearings (9), the inside of the supporting bearing (9) is connected with a fixed shaft (10), the outer surface of the fixed shaft (10) is slidably connected with a fixed rod (11), and the outer surface of the fixed rod (11) is fixedly provided with a rotating plate (12).

2. The fire smoke exhaust fan filter protection structure according to claim 1, wherein: The metal wire mesh (4) is located at the air inlet position of the fan assembly (3), the metal wire mesh (4) is made of alloy material and is coated with a ceramic coating on the outer surface.

3. The fire smoke exhaust fan filter protection structure according to claim 1, wherein: The fixed ring II (6) and the protection box (8) are located at the air outlet position of the fan assembly (3), and the supporting bearings (9) and the rotating plate (12) are vertically arranged in the protection box (8).

4. The fire smoke exhaust fan filter protection structure according to claim 1, wherein: The inside of the fixed rod (11) is symmetrically provided with a fixed groove (13), the outer surface of the fixed shaft (10) is slidably connected with the inside of the fixed groove (13), the outer surface of the fixed shaft (10) is fixedly provided with a moving plate (14), the inner wall of the fixed groove (13) is fixedly provided with a spring (15), and the other end of the spring (15) is fixedly connected with one end of the fixed shaft (10).

5. The fire smoke exhaust fan filter protection structure according to claim 1, wherein: The outer surface of the rotating plate (12) is fixedly provided with a connecting block I (16), the inside of the connecting block I (16) is hingedly provided with a connecting rod (17), one end of the connecting rod (17) is hingedly provided with a connecting block II (18), and the outer surface of the connecting block II (18) is fixedly provided with a control plate (19).

6. The fire smoke exhaust fan filter protection structure according to claim 1, wherein: The inside of the fixed cylinder (7) is fixedly provided with a limiting frame (20), the inside of the limiting frame (20) is provided with a U-shaped groove (21), the inside of the U-shaped groove (21) is slidably connected with an auxiliary wheel (22), and the supporting shaft of the auxiliary wheel (22) is rotatably connected with the inside of the control plate (19).

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