Environment-friendly smoke exhaust fireproof valve

By using filter plates and noise reduction components in the smoke exhaust fire valve, the equipment is easily polluted and noise pollution in harsh environments, achieving more efficient dust and oil pollution interception and noise reduction, and improving environmental protection performance.

CN223004515UActive Publication Date: 2025-06-20NANTONG JIAYUAN VENTILATION EQUIPMENT CO LTD
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Patent Information

Application Number
CN202422078662.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-26
Publication Date
2025-06-20
Estimated Expiration
2034-08-26

AI Technical Summary

Technical Problem

Existing smoke exhaust fire valves are susceptible to dust and oil pollution in harsh environments, resulting in reduced performance or failure. At the same time, noise pollution caused by high-speed flow of smoke, affecting the quality of life and working environment.

Method used

An environmentally friendly smoke exhaust fire valve is designed, using a filter plate and a noise reduction component. Vertical filter holes are installed on the filter plate to intercept dust and oil pollution. The noise reduction component uses the rock wool board to absorb sound waves and transmit sound waves to reduce noise.

Benefits of technology

It effectively reduces the kinetic energy of the flue gas, improves the interception effect of dust and oil pollution, reduces noise pollution, and improves the environmental protection performance of the device.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223004515U_ABST
Patent Text Reader

Abstract

The utility model relates to the field of smoke exhaust fire resisting dampers and discloses an environment-friendly smoke exhaust fire resisting damper which comprises a fire resisting damper body and blades fixedly installed on the side wall of an inner cavity of the fire resisting damper body, and a controller driving the blades to be closed inwards at high temperature is arranged on the upper end face of the fire resisting damper body. A sealing ring is fixedly installed on the side wall of the blade, a filter plate is fixedly installed on the side wall of an inner cavity of the fireproof valve body, a positioning seat is detachably installed on the upper end face of the filter plate, and noise reduction assemblies are arranged on the front side and the rear side of the side wall of the positioning seat. Through the cooperation of the controller, the blades and the like, the function of automatically closing the fireproof valve when the smoke temperature is too high is achieved, meanwhile, the noise reduction assembly is additionally arranged, noise pollution caused by operation of the whole device is effectively reduced, finally, through the cooperation of the dirt removal assembly, the filter plate is cleaned regularly, and the cleaning efficiency is improved. A good smoke filtering effect of the filtering plate is ensured, and the environmental protection performance of the whole device is improved.
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Description

Technical Field

[0001] The utility model relates to the field of smoke exhaust fire dampers, in particular to an environment-friendly smoke exhaust fire damper. Background Technique

[0002] A fire damper is a form of valve that controls the temperature of a memory alloy and closes by the action of gravity and a spring mechanism. In new products, there are also those that use a memory alloy to deform and close the valve. Its function is: when the flue gas temperature reaches 280 °C, people have basically been evacuated, and smoke exhaust has no practical significance. At this time, the flue gas is already on fire, and the valve closes automatically to prevent the spread of fire.

[0003] However, during the daily use of some existing fire dampers, affected by the relatively harsh use environment, they are easily eroded by pollutants such as dust and oil in the smoke exhaust pipe, resulting in a decline or failure of their performance. At the same time, due to the high-speed flow of smoke and gas during the use of the smoke exhaust fire damper, hitting the smoke exhaust pipe may generate noise pollution, affecting the quality of life and working environment of surrounding residents. Therefore, there is an urgent need for an environment-friendly smoke exhaust fire damper to solve such problems. Content of the Utility Model

[0004] (1) Technical Problems to be Solved

[0005] The purpose of the utility model is to provide an environment-friendly smoke exhaust fire damper to solve the problems of inconvenient interception and filtration of dust and oil in the flue gas passing through the smoke exhaust pipe and noise reduction mentioned in the above background technique.

[0006] (2) Technical Solutions

[0007] To achieve the above purpose, the utility model provides the following technical solutions: an environment-friendly smoke exhaust fire damper, including a fire damper body, and blades fixedly installed on the side wall of the inner cavity of the fire damper body. A controller for driving the blades to close inward at high temperature is arranged on the upper end face of the fire damper body. A sealing ring is fixedly installed on the side wall of the blade. A filter plate is fixedly installed on the side wall of the inner cavity of the fire damper body. A positioning seat is detachably installed on the upper end face of the filter plate. Noise reduction components are arranged on the front and rear sides of the side wall of the positioning seat. A dirt removal component is arranged on the upper end face of the positioning seat.

[0008] Preferably, filter holes are formed on the side wall of the filter plate. A plurality of groups of filter holes are provided, and the filter holes are arranged perpendicular to the side wall of the filter plate.

[0009] Preferably, the noise reduction component includes a positioning plate fixedly installed on the upper end face of the fire damper body, and rotating seats rotatably installed on both sides of the side wall of the positioning plate. A spring rod is rotatably installed in the inner cavity of the rotating seat. One end of the spring rod away from the rotating seat is rotatably installed with a fixed seat, and a clamping plate is rotatably installed in the inner cavity of the fixed seat.

[0010] Preferably, engaging grooves are formed on the left and right sides of the side wall of the positioning seat. The clamping plate moves in the inner cavity of the engaging groove. A limiting frame is fixedly installed on the side wall of the clamping plate. A limiting block is fixedly installed on one side of the fire damper body close to the limiting frame. The limiting frame slides on the side wall of the limiting block.

[0011] Preferably, the decontamination component includes liquid storage boxes fixedly installed on the left and right sides of the upper end face of the positioning seat. A water pump is fixedly installed in the middle of the upper end face of the positioning seat. The liquid storage boxes are connected to the input end of the water pump through liquid inlet pipes.

[0012] Preferably, a liquid storage cavity is formed in the upper part of the inner cavity of the filter plate. The output end of the water pump is communicated with the liquid storage cavity through a liquid outlet pipe. Precipitation holes are arranged between the filter holes arranged in a vertical row. A collection trough is detachably installed on the lower end face of the fire damper body.

[0013] Preferably, the filter plate is inclined in the inner cavity of the fire damper body. A sound-absorbing seat is arranged on one side of the fire damper body close to the filter plate. The sound-absorbing seat is made of rock wool board.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] 1. In this utility model, when the entire device is performing smoke exhaust work, since the filter holes on the filter plate are arranged perpendicular to the side wall of the filter plate, the airflow formed when the flue gas passes through cannot directly pass through the filter holes, effectively reducing the kinetic energy of the flue gas. The flue gas will be reflected on the filter plate, causing the flue gas to impact on the sound-absorbing seat. Since the sound-absorbing seat is made of rock wool board, the rock wool board is composed of a large number of slender fibers, and a porous connection structure is formed between these fibers. This porous structure enables the rock wool board to effectively absorb sound wave energy, thereby reducing the noise level, and further reducing the noise pollution caused by the operation of the entire device to a certain extent, improving the environmental protection performance of the entire device.

[0016] 2. In this utility model, through the arrangement of the filter plate, a number of groups of filter holes provided on the filter plate can effectively intercept dust and oil in the flue gas, enabling the new air to be discharged into the atmosphere. After the filter plate has been used for a long time, workers can start the liquid transfer pump to suck the clear water in the liquid storage box through the liquid inlet pipe and pump the clear water into the liquid storage cavity through the liquid outlet pipe. Since precipitation holes are provided between the filter holes, the clear water in the liquid storage cavity will continuously enter each filter hole through the precipitation holes, realizing the removal of dust and oil blocked in the filter holes. Through the above description, this device can regularly clean the filter plate to ensure its good effect of filtering flue gas, further improving the environmental protection performance of the entire device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a front view of the overall structure of this utility model;

[0018] Figure 2 is a rear view of the overall structure of this utility model;

[0019] Figure 3 is a top view of the overall structure of this utility model;

[0020] Figure 4 is a structural view of the filter plate of this utility model;

[0021] Figure 5 is a top view sectional view of this utility model.

[0022] In the figure: 1, fire damper body; 11, sound-absorbing seat; 2, blade; 21, sealing ring; 3, controller; 21, sealing ring; 4, filter plate; 41, filter hole; 42, liquid storage cavity; 43, precipitation hole; 5, positioning seat; 51, clamping groove; 6, noise reduction component; 61, positioning plate; 62, rotating seat; 63, spring rod; 64, fixed seat; 65, clamping plate; 66, limiting frame; 67, limiting block; 7, decontamination component; 71, liquid storage box; 72, liquid transfer pump; 73, liquid inlet pipe; 74, liquid outlet pipe; 75, collection tank. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] Next, the technical solutions in the embodiments of this utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, rather than all of the embodiments. Based on the embodiments in this utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the scope of protection of this utility model.

[0024] Please refer to Figures 1 - 5, the present utility model provides a technical solution for an environment-friendly smoke exhaust and fire damper: an environment-friendly smoke exhaust and fire damper, including a fire damper body 1 and blades 2 fixedly installed on the inner cavity side wall of the fire damper body 1. A controller 3 for driving the blades 2 to close inward at high temperature is arranged on the upper end face of the fire damper body 1. A sealing ring 21 is fixedly installed on the side wall of the blade 2. It is characterized in that: a filter plate 4 is fixedly installed on the inner cavity side wall of the fire damper body 1. A positioning seat 5 is detachably installed on the upper end face of the filter plate 4. Noise reduction components 6 are arranged on the front and rear sides of the side wall of the positioning seat 5. A dirt removal component 7 is arranged on the upper end face of the positioning seat 5.

[0025] Further, filter holes 41 are opened on the side wall of the filter plate 4. A plurality of groups of filter holes 41 are provided, and the filter holes 41 are arranged perpendicular to the side wall of the filter plate 4;

[0026] The noise reduction component 6 includes a positioning plate 61 fixedly installed on the upper end face of the fire damper body 1 and rotating seats 62 rotatably installed on both sides of the side wall of the positioning plate 61. A spring rod 63 is rotatably installed in the inner cavity of the rotating seat 62. One end of the spring rod 63 away from the rotating seat 62 is rotatably installed with a fixed seat 64. A clamping plate 65 is rotatably installed in the inner cavity of the fixed seat 64;

[0027] Clamping grooves 51 are opened on the left and right sides of the side wall of the positioning seat 5. The clamping plate 65 moves in the inner cavity of the clamping groove 51. A limiting frame 66 is fixedly installed on the side wall of the clamping plate 65. A limiting block 67 is fixedly installed on the side of the fire damper body 1 close to the limiting frame 66. The limiting frame 66 slides on the side wall of the limiting block 67;

[0028] The filter plate 4 is inclined in the inner cavity of the fire damper body 1. A sound-absorbing seat 11 is arranged on the side of the fire damper body 1 close to the filter plate 4. The material of the sound-absorbing seat 11 is rock wool board.

[0029] It should be noted that through the setting of the filter plate 4, a plurality of groups of filter holes 41 provided on the filter plate 4 can well intercept the dust and oil in the flue gas, so that the new air is discharged into the atmosphere, improving the environmental protection performance of the whole device. Since the filter holes 41 on the filter plate 4 are arranged perpendicular to the side wall of the filter plate 4, the airflow formed when the flue gas passes through cannot directly pass through the filter holes 41, effectively reducing the kinetic energy of the flue gas. At this time, the flue gas will be reflected on the filter plate 4, causing the flue gas to impact on the sound-absorbing seat 11. Since the material of the sound-absorbing seat 11 is rock wool board, the rock wool board is composed of a large number of slender fibers, and a porous connection structure is formed between these fibers. This porous structure enables the rock wool board to effectively absorb sound wave energy, thereby reducing the noise level, and further reducing the noise pollution caused by the operation of the whole device to a certain extent.

[0030] Further, the decontamination component 7 includes liquid storage boxes 71 fixedly installed on the left and right sides of the upper end face of the positioning seat 5. A water pump 72 is fixedly installed in the middle of the upper end face of the positioning seat 5. The liquid storage box 71 is connected to the input end of the water pump 72 through a liquid inlet pipe 73;

[0031] An upper liquid storage cavity 42 is provided in the inner cavity of the filter plate 4. The output end of the water pump 72 is communicated with the liquid storage cavity 42 through a liquid outlet pipe 74. Precipitation holes 43 are arranged between the vertically arranged filter holes 41. A collection tank 75 is detachably installed on the lower end face of the fire damper body 1.

[0032] It should be noted that the worker can start the water pump 72 to work, suck the clear water in the liquid storage box 71 through the liquid inlet pipe 72, and pump the clear water into the liquid storage cavity 42 through the liquid outlet pipe 74. At this time, since the precipitation holes 43 are arranged between the filter holes 41, the clear water in the liquid storage cavity 42 will continuously enter each filter hole 41 through the precipitation holes 43, realizing the removal of dust and oil stains blocked in the filter holes 41. At this time, the sewage will continuously deposit and fall into the collection tank 75, which is convenient for the worker to collect uniformly. Thus, through the above description, the device can regularly clean the filter plate 4 to ensure its good effect of filtering flue gas and improve the environmental protection performance of the whole device.

[0033] Working principle:

[0034] When the whole device is discharging smoke, through the setting of the filter plate 4, a number of groups of filter holes 41 provided on the filter plate 4 can well intercept the dust and oil stains in the flue gas, making the new air discharged into the atmosphere and improving the environmental protection performance of the whole device. Since the filter holes 41 on the filter plate 4 are arranged perpendicular to the side wall of the filter plate 4, the air flow formed when the flue gas passes through cannot directly pass through the filter holes 41, effectively reducing the kinetic energy of the flue gas. At this time, the flue gas will be reflected on the filter plate 4, causing the flue gas to impact on the sound-absorbing seat 11. Since the material of the sound-absorbing seat 11 is rock wool board, the rock wool board is composed of a large number of slender fibers, and porous connection structures are formed between these fibers. This porous structure enables the rock wool board to effectively absorb sound wave energy, thereby reducing the noise level and further reducing the noise pollution caused by the operation of the whole device to a certain extent;

[0035] Since the flue gas also impacts on the filter plate 4, at this time, the filter plate 4 transmits the generated noise to the positioning seat 5. A clamping plate 65 slides in the inner cavity of the clamping groove 51 opened on the positioning seat 5. The sound wave of the positioning seat 5 is transmitted to the spring rod 63 through the clamping plate 65. Since the positioning plate 61 is fixedly installed on the upper end face of the fire damper body 1, at this time, under the action of the spring on the spring rod 63, the sound wave will be repeatedly transmitted in the multiple coils of the spring, gradually reducing the reflection wavelength of the sound wave, thereby further improving the noise reduction effect during the operation of the whole device;

[0036] After the filter plate 4 has been used for a long time, the worker can start the water pump 72 to work, suck the clear water in the liquid storage box 71 through the liquid inlet pipe 72, and pump the clear water into the liquid storage cavity 42 through the liquid outlet pipe 74. At this time, since the precipitation holes 43 are arranged between the filter holes 41, the clear water in the liquid storage cavity 42 will continuously enter each filter hole 41 through the precipitation holes 43, so as to remove the dust and oil stains blocked in the filter holes 41. At this time, the sewage will continuously deposit and fall into the collection tank 75, which is convenient for the worker to collect uniformly. Therefore, through the above description, the device of the present invention can regularly clean the filter plate 4 to ensure that it has a good effect on filtering flue gas, improve the environmental protection performance of the whole device, and is suitable for wide promotion and use.

[0037] Finally, it should be noted that the above content is only used to illustrate the technical solution of the present invention, rather than to limit the protection scope of the present invention. Any simple modification or equivalent replacement made by those of ordinary skill in the art to the technical solution of the present invention shall not depart from the essence and scope of the technical solution of the present invention.

Claims

1. An environmentally friendly smoke exhaust fire damper, comprising a fire damper body (1), and a blade (2) fixedly mounted on the side wall of the inner cavity of the fire damper body (1), wherein the upper end surface of the fire damper body (1) is provided with a controller (3) for driving the blade (2) to close inward at high temperature, and a sealing ring (21) is fixedly mounted on the side wall of the blade (2), characterized in that: A filter plate (4) is fixedly mounted on the inner cavity side wall of the fire damper body (1); a positioning seat (5) is detachably mounted on the upper end surface of the filter plate (4); noise reduction components (6) are arranged on the front and rear sides of the side wall of the positioning seat (5); and a dirt removal component (7) is arranged on the upper end surface of the positioning seat (5).

2. The environmentally friendly smoke exhaust fire damper according to claim 1 is characterized in that: The side wall of the filter plate (4) is provided with filter holes (41), and a total of a plurality of groups of the filter holes (41) are provided. The filter holes (41) are arranged perpendicular to the side wall of the filter plate (4).

3. The environmentally friendly smoke exhaust fire damper according to claim 1 is characterized in that: The noise reduction component (6) comprises a positioning plate (61) fixedly mounted on the upper end surface of the fire damper body (1), and a rotating seat (62) rotatably mounted on both sides of the side walls of the positioning plate (61), a spring rod (63) rotatably mounted in the inner cavity of the rotating seat (62), a fixed seat (64) rotatably mounted on one end of the spring rod (63) away from the rotating seat (62), and a clamping plate (65) rotatably mounted in the inner cavity of the fixed seat (64).

4. The environmentally friendly smoke exhaust fire damper according to claim 3 is characterized by: The side walls of the positioning seat (5) are provided with engaging grooves (51) on both sides, the engaging plate (65) moves in the inner cavity of the engaging groove (51), a limiting frame (66) is fixedly installed on the side wall of the engaging plate (65), a limiting block (67) is fixedly installed on one side of the fire damper body (1) close to the limiting frame (66), and the limiting frame (66) slides on the side wall of the limiting block (67).

5. The environmentally friendly smoke exhaust fire damper according to claim 2 is characterized in that: The dirt removal assembly (7) comprises a liquid storage box (71) fixedly mounted on the left and right sides of the upper end surface of the positioning seat (5); a water delivery pump (72) is fixedly mounted in the middle of the upper end surface of the positioning seat (5); and the liquid storage box (71) is connected to the input end of the water delivery pump (72) via a liquid inlet pipe (73).

6. The environmentally friendly smoke exhaust fire damper according to claim 5 is characterized by: A liquid storage chamber (42) is provided at the upper inner portion of the filter plate (4); the output end of the water delivery pump (72) is connected to the liquid storage chamber (42) via a liquid outlet pipe (74); precipitation holes (43) are provided between the filter holes (41) arranged in a longitudinal row; and a collecting tank (75) is detachably mounted on the lower end surface of the fire damper body (1).

7. The environmentally friendly smoke exhaust fire damper according to claim 1 is characterized by: The filter plate (4) is arranged obliquely in the inner cavity of the fire damper body (1); a sound absorbing seat (11) is arranged on one side of the fire damper body (1) close to the filter plate (4); the material of the sound absorbing seat (11) is a rock wool board.