Smoke exhaust fireproof valve with multi-stage filtering structure

Abstract

The utility model relates to a smoke exhaust fireproof valve, in particular to a smoke exhaust fireproof valve with a multi-stage filtering structure. Comprising a fireproof valve body, the fireproof valve body is formed by splicing a middle section pipe, a connecting pipe and an outer end pipe in a sealed mode, a plurality of connecting bolts used for assisting splicing of the fireproof valve body are installed in the middle of the fireproof valve body, a sealing fan is movably installed in the outer end pipe, and a filtering assembly used for conducting auxiliary filtering on smoke is arranged in the middle section pipe; a mounting assembly is arranged at the end of the filtering assembly, and a starting assembly used for assisting the filtering assembly in operation is connected into the filtering assembly. By means of the installation assembly arranged in the middle section pipe, stable installation of the filtering assembly can be assisted, multi-stage filtering can be conducted on smoke, by means of the starting assembly arranged in the filtering assembly, the filtering effect on the smoke is improved, and the situation that the surface of the filtering assembly is blocked is reduced.

Description

Technical Field

[0001] The utility model relates to a smoke exhaust fire damper, in particular to a smoke exhaust fire damper with a multi-stage filtering structure. Background Art

[0002] The smoke exhaust fire damper is a fire protection component, which is installed on the smoke exhaust system pipe to isolate smoke and prevent fire. It can meet the requirements of fire resistance stability and fire resistance integrity within a certain period of time. It has manual and automatic functions. There are many existing technologies for smoke exhaust fire dampers:

[0003] For example, the Chinese patent publication number is CN219013478U, which is a sealed smoke exhaust fire damper with a filtering structure, including a shell, mounting flanges are arranged on both sides of the shell surface, a plurality of fire damper plates are evenly and movably arranged in the middle of the inner side of the shell through a rotating shaft, and there are three fire damper plates, and a fixed frame is fixedly arranged on both sides of the protective valve plate inside the shell, and the fixed frame is fixedly connected to the inside of the shell by locking screws, and a protective filter is fixedly arranged inside the fixed frame, and a sealing mechanism is arranged between the fire damper plates. The utility model has a good use effect, and the protective filter can effectively prevent foreign matter from contacting the fire damper plate, which causes the fire damper plate to fail to close in an emergency;

[0004] The current smoke exhaust fire damper filter layer is located at both ends of the fire damper plate. The smoke contains water vapor and oil smoke, and the current smoke exhaust fire damper end filter layer is a single-layer filter. The water vapor and oil smoke in the smoke can easily clog the filter, which to a certain extent affects the ventilation effect of the smoke exhaust fire damper. In view of this, we propose a smoke exhaust fire damper with a multi-stage filtering structure. Utility Model Content

[0005] The utility model aims to solve the above-mentioned shortcomings and provide a smoke exhaust fire damper with a multi-stage filtering structure which can filter smoke in multiple stages by means of a filtering assembly arranged inside a middle section pipe.

[0006] By setting the filter component inside the middle tube, the smoke can be filtered at multiple levels, which improves the filtering effect of the smoke and reduces the clogging of the filter by water vapor and oil smoke in the smoke. At the same time, the starting component set inside the filter component is used to further improve the filtering effect of the smoke.

[0007] Therefore, the utility model provides a smoke exhaust fire damper with a multi-stage filtering structure, which includes a fire damper body, wherein the fire damper body is formed by sealing and splicing a middle section pipe, a connecting pipe and an outer end pipe, a plurality of connecting bolts for assisting the splicing are installed in the middle of the fire damper body, a closing fan is movably installed inside the outer end pipe, a filtering assembly for assisting in filtering smoke is arranged inside the middle section pipe, an installation assembly is arranged at the end of the filtering assembly, and a starting assembly for assisting its operation is connected inside the filtering assembly.

[0008] As a further improvement of the present technical solution, the installation assembly includes four sliding grooves opened on the inner walls at the upper and lower ends of the middle section tube, and the interiors of the four sliding grooves are all slidably provided with extension protrusions, and the interior of the middle section tube is slidably provided with an inner ring, and the other ends of the four extension protrusions are connected to the surface of the inner ring.

[0009] As a further improvement of the present technical solution, the filter assembly includes a first filter plate and a second filter plate installed at both ends of the inner ring, two support rods are connected to the middle of the inner ring, and an adsorption fan for adsorbing water vapor in the smoke is movably connected between the two support rods.

[0010] As a further improvement of the present technical solution, the starting assembly includes a conical tooth group installed on one end of the support rod close to the second filter plate, one end of the conical tooth group is fixedly connected to the rotating shaft of the adsorption fan, the other end of the conical tooth group is fixedly connected to the vertical pipe, a plug-in tube is installed inside the middle section tube, the end of the plug-in tube is meshed and installed on the top of the vertical pipe, the plug-in tube is fixedly connected to the output group of the motor, and the motor is installed on the top of the middle section tube.

[0011] As a further improvement of the technical solution, four extension rods are fixedly connected to one end of the outer end tube close to the middle section tube, and the surfaces of the four extension rods are in contact with the inner wall of the slide groove.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] In the smoke exhaust fire damper with a multi-stage filtering structure, a middle section pipe, a connecting pipe and an outer end pipe can be spliced ​​together to form a fire damper pipe, wherein the middle section pipe, the connecting pipe and the outer end pipe are sealed and spliced, thereby reducing smoke leakage. By means of an installation component arranged inside the middle section pipe, the filter component can be assisted to be stably installed, and the smoke can be filtered in multiple stages. By means of a starting component arranged inside the filter component, the filtering effect of the smoke is improved, and clogging of the filter component surface is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention is described in more detail below by way of example with reference to the accompanying drawings, in which:

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the exploded structure of the fire damper body of the utility model;

[0017] Figure 3 This is a schematic diagram of the installation structure of the filter assembly of the utility model;

[0018] Figure 4 For this utility model Figure 3 A schematic diagram of the structure at A;

[0019] Figure 5 It is an overall cutaway side view of the utility model.

[0020] The meaning of each number in the figure is:

[0021] 1. Fire damper body; 11. Middle section pipe; 12. Connecting pipe; 13. Outer end pipe; 14. Closing fan; 15. Connecting bolts;

[0022] 2. Mounting assembly; 21. Inner ring; 22. Slide groove; 23. Extended protrusion;

[0023] 3. Filter assembly; 31. First filter plate; 32. Second filter plate; 33. Adsorption fan; 34. Support rod;

[0024] 4. Starting assembly; 41. Conical gear set; 42. Standpipe; 43. Plug-in pipe; 44. Motor;

[0025] 5. Extension rod. DETAILED DESCRIPTION

[0026] The current smoke exhaust fire damper filter layer is located at both ends of the fire damper plate. The smoke contains water vapor and oil smoke, and the current smoke exhaust fire damper end filter layer is a single-layer filter. The water vapor and oil smoke in the smoke can easily clog the filter, affecting the ventilation effect of the smoke exhaust fire damper to a certain extent.

[0027] See also Figure 1-Figure 5 As shown, the device includes a fire damper body 1, which is formed by sealing and splicing a middle section pipe 11, a connecting pipe 12 and an outer end pipe 13. A plurality of connecting bolts 15 for assisting the splicing are installed in the middle of the fire damper body 1, and a closing fan 14 is movably installed inside the outer end pipe 13. A filter assembly 3 for assisting in filtering smoke is arranged inside the middle section pipe 11, a mounting assembly 2 is arranged at the end of the filter assembly 3, and a starting assembly 4 for assisting its operation is connected inside the filter assembly 3.

[0028] First, the specific structure of the mounting assembly 2 is disclosed. The mounting assembly 2 includes four slide grooves 22 provided on the inner walls of the upper and lower ends of the middle section tube 11. The four slide grooves 22 are all provided with extension protrusions 23 for sliding movement inside. The inner ring 21 is provided for sliding movement inside the middle section tube 11. The other ends of the four extension protrusions 23 are all connected to the surface of the inner ring 21. By using the four slide grooves 22 provided on the inner wall of the middle section tube 11, the four extension protrusions 23 connected to the inner ring 21 slide inside the four slide grooves 22 respectively, thereby driving the inner ring 21 to be movably connected to the inside of the middle section tube 11, so as to facilitate the replacement and cleaning of the filter assembly 3 inside the inner ring 21.

[0029] Next, the specific structure of the filter assembly 3 is disclosed. The filter assembly 3 includes a first filter plate 31 and a second filter plate 32 installed at both ends of the inner ring 21. Two support rods 34 are connected to the middle of the inner ring 21. An adsorption fan 33 for adsorbing water vapor in the smoke is movably connected between the two support rods 34. The particles in the smoke can be double-layer filtered by the first filter plate 31 and the second filter plate 32 arranged at both ends of the inner wall of the inner ring 21. The adsorption fan 33 for adsorbing water vapor in the smoke is stably installed by using the two support rods 34 arranged inside the inner ring 21. The smoke can be adsorbed multiple times by the joint operation of the first filter plate 31, the second filter plate 32 and the adsorption fan 33, thereby improving the filtering effect of the smoke. Among them, the first filter plate 31 and the second filter plate 32 can be made of activated carbon.

[0030] Finally, the specific structure of the starting component 4 is disclosed. The starting component 4 includes a conical tooth group 41 installed on one end of the support rod 34 close to the second filter plate 32, one end of the conical tooth group 41 is fixedly connected to the rotating shaft of the adsorption fan 33, and the other end of the conical tooth group 41 is fixedly connected to the vertical pipe 42. A plug-in tube 43 is installed inside the middle section tube 11, and the end of the plug-in tube 43 is meshed and installed on the top of the vertical pipe 42. The plug-in tube 43 is fixedly connected to the output group of the motor 44, and the motor 44 is installed on the top of the middle section tube 11. When the adsorption fan 33 needs to be started, the motor 44 is turned on to drive the plug-in tube 43 fixedly connected to the output shaft of the motor 44 to rotate, and the end of the plug-in tube 43 is engaged with the end of the vertical pipe 42, and the end of the vertical pipe 42 is connected to the end of the conical gear set 41, so that when the plug-in tube 43 rotates, it can drive the adsorption fan 33 connected to the other end of the conical gear set 41 to operate, thereby improving the filtering effect of the smoke. When the inner ring 21 needs to be disassembled, the motor 44 and the plug-in tube 43 connected to its end are disassembled, which does not affect the sliding of the inner ring 21, thereby improving the replacement and cleaning effect of the filter element inside the inner ring 21.

[0031] The improvement of this embodiment is that: first, the middle tube 11, the connecting tube 12 and the outer end tube 13 can be spliced ​​to form a fire damper tube. When the smoke needs to be discharged, the motor 44 is started to drive the plug-in tube 43 fixedly connected to the output shaft of the motor 44 to rotate, and the end of the plug-in tube 43 is engaged with the end of the standpipe 42, and the end of the standpipe 42 is connected to the end of the conical gear set 41, so that when the plug-in tube 43 rotates, the adsorption fan 33 connected to the other end of the conical gear set 41 can be driven to operate. Through the joint operation of the first filter plate 31, the second filter plate 32 and the adsorption fan 33, the smoke can be adsorbed multiple times, thereby improving the filtering effect of the smoke.

[0032] By utilizing the four slide grooves 22 provided on the inner wall of the middle tube section 11, the four extended protrusions 23 connected to the inner ring 21 slide inside the four slide grooves 22 respectively, thereby driving the inner ring 21 to be movably connected to the inside of the middle tube section 11, making it easy to replace and clean the filter assembly 3 inside the inner ring 21.

[0033] Considering that the inner ring 21 is mounted inside the middle tube 11 with the aid of the extension protrusion 23, in order to reduce the situation where the extension protrusion 23 slides randomly inside the slide groove 22 when the fire damper body 1 is in operation, Figure 3-Figure 4 As shown, four extension rods 5 are fixedly connected to one end of the outer end tube 13 close to the middle section tube 11 , and the surfaces of the four extension rods 5 are in contact with the inner wall of the slide groove 22 .

[0034] The improvement lies in that: by setting an extension rod 5 at the end of the outer end tube 13, when the outer end tube 13 is spliced ​​with the middle section tube 11, the extension rod 5 can be inserted into the inside of the slide groove 22, thereby improving the installation stability of the extension protrusion 23, and then reducing the situation where the inner ring 21 slides randomly inside the middle section tube 11.

[0035] In summary, the working principle of this solution is as follows: first, the middle tube 11, the connecting tube 12 and the outer end tube 13 can be spliced ​​to form a fire damper tube. When smoke needs to be discharged, the motor 44 is started to drive the plug-in tube 43 fixedly connected to the output shaft of the motor 44 to rotate, and the end of the plug-in tube 43 is engaged with the end of the vertical tube 42, and the end of the vertical tube 42 is connected to the end of the conical gear set 41, so that when the plug-in tube 43 rotates, it can drive the adsorption fan 33 connected to the other end of the conical gear set 41 to operate. Through the joint operation of the first filter plate 31, the second filter plate 32 and the adsorption fan 33, the smoke can be adsorbed multiple times, thereby improving the filtering effect of the smoke;

[0036] By using four slide grooves 22 provided on the inner wall of the middle tube 11, four extension protrusions 23 connected to the inner ring 21 slide inside the four slide grooves 22 respectively, thereby driving the inner ring 21 to be movably connected to the inside of the middle tube 11, so as to facilitate the replacement and cleaning of the filter assembly 3 inside the inner ring 21;

[0037] By setting the extension rod 5 at the end of the outer end tube 13, when the outer end tube 13 is spliced ​​with the middle section tube 11, the extension rod 5 can be inserted into the inside of the slide groove 22, thereby improving the installation stability of the extension protrusion 23 and then reducing the situation where the inner ring 21 slides randomly inside the middle section tube 11.

[0038] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A smoke exhaust fire damper with a multi-stage filtering structure, comprising a fire damper body (1), characterized in that: The fire damper body (1) is formed by sealing and splicing a middle section pipe (11), a connecting pipe (12) and an outer end pipe (13); a plurality of connecting bolts (15) for assisting the splicing are installed in the middle of the fire damper body (1); a closing fan (14) is movably installed inside the outer end pipe (13); a filter assembly (3) for assisting in filtering smoke is arranged inside the middle section pipe (11); a mounting assembly (2) is arranged at the end of the filter assembly (3); and a starting assembly (4) for assisting its operation is connected inside the filter assembly (3).

2. The smoke exhaust fire damper with a multi-stage filtering structure according to claim 1 is characterized in that: The mounting assembly (2) comprises four slide grooves (22) provided on the inner walls at the upper and lower ends of the middle tube section (11); the interiors of the four slide grooves (22) are all slidably provided with extension protrusions (23); the interiors of the middle tube section (11) are slidably provided with an inner ring (21); the other ends of the four extension protrusions (23) are all connected to the surface of the inner ring (21).

3. The smoke exhaust fire damper with a multi-stage filtering structure according to claim 2 is characterized in that: The filter assembly (3) comprises a first filter plate (31) and a second filter plate (32) mounted at two ends of the inner ring (21); two support rods (34) are connected to the middle of the inner ring (21); an adsorption fan (33) for adsorbing water vapor in smoke is movably connected between the two support rods (34).

4. The smoke exhaust fire damper with a multi-stage filtering structure according to claim 3 is characterized in that: The starting assembly (4) comprises a conical tooth group (41) mounted on one end of the support rod (34) close to the second filter plate (32); one end of the conical tooth group (41) is fixedly connected to the rotating shaft of the adsorption fan (33); the other end of the conical tooth group (41) is fixedly connected to the vertical pipe (42); a plug-in tube (43) is installed inside the middle section pipe (11); the end of the plug-in tube (43) is meshedly mounted on the top of the vertical pipe (42); the plug-in tube (43) is fixedly connected to the output group of the motor (44); and the motor (44) is mounted on the top of the middle section pipe (11).

5. The smoke exhaust fire damper with a multi-stage filtering structure according to claim 2 is characterized in that: Four extension rods (5) are fixedly connected to one end of the outer end tube (13) close to the middle section tube (11), and the surfaces of the four extension rods (5) are in contact with the inner wall of the slide groove (22).

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