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Smoke exhaust fireproof valve

A fire damper and valve body technology, applied in the direction of balance valves, valve devices, valve details, etc., can solve the problems of increased overall thickness and bulky volume of fire dampers, and achieve the effect of stable and reliable mechanical structure and reduced thickness

Active Publication Date: 2021-06-29
浙江尚扬通风设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the related technologies mentioned above, the inventor believes that for the smoke exhaust fire damper, because it needs to be able to exhaust the smoke, in addition to the valve, an exhaust fan is also installed in the valve body, and the valve of the fire damper is usually The symmetrical flip structure on both sides makes it necessary to reserve enough space between the exhaust fan and the valve for the valve to flip, resulting in an increase in the overall thickness of the fire damper, which has the disadvantage of being bulky

Method used

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Embodiment Construction

[0035] The following is attached Figure 1-3 The application is described in further detail.

[0036] The embodiment of the present application discloses a smoke exhaust fire damper, referring to figure 1 , including a valve body 1, an exhaust fan 2 and a valve 3, the valve body 1 is used as a supporting body, and is used to form a connection with an exhaust pipe during installation. The exhaust fan 2 can specifically choose a fan with its own fan blades and motor. The exhaust fan 2 is installed in the valve body 1 to accelerate the air circulation speed in the valve body 1, and then to accelerate the smoke exhaust when a fire occurs.

[0037] The valve 3 includes a valve shaft 31 and a valve plate 32. The valve shaft 31 is installed on the valve body 1. As an important means to control the thickness of the fire damper, the valve shaft 31 can be close to the exhaust fan 2. There are multiple valve plates 32, and in this embodiment, the specific number can be two. The two val...

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Abstract

The invention relates to a valve, and discloses a smoke exhaust fireproof valve. The fireproof valve comprises a valve body, an exhaust fan installed on the valve body and a valve installed in the valve body, the valve comprises a valve shaft rotationally installed on the valve body and a valve block hinged to the valve shaft, an arc-shaped guide groove is formed in the valve body, the exhaust fan and the arc-shaped guide groove are located on the two sides of the valve shaft respectively, a guide column is arranged on the valve block, the guide column is arranged in the arc-shaped guide groove in a penetrating mode and moves along a track formed by the arc-shaped guide groove, and a closing mechanism used for driving the valve block to rotate so as to close an inner cavity of the valve body when a fire occurs is arranged on the valve body. According to the fireproof valve, the distance between the valve shaft and the exhaust fan can be reduced during design and manufacturing of the valve block rotating towards the side opposite to the exhaust fan during opening and closing, so that the thickness of the valve body is reduced, and the effect of lightening the fireproof valve is achieved.

Description

technical field [0001] The present application relates to the field of valves, in particular to a smoke exhaust fire damper. Background technique [0002] The fire damper is a normally closed valve, which is opened by the control center through 24V DC or manually, and it will automatically close at 280 ° C, and the reset must be done manually. Its function is: when the temperature of the flue gas reaches 280°C, the evacuation of the people has been basically completed, and the smoke exhaust has no practical significance. At this time, the flue gas is already on fire, and the valve is automatically closed to avoid the spread of the fire. [0003] At present, the Chinese utility model with the authorized announcement number CN212536837U discloses a smoke exhaust fire damper for accelerating smoke exhaust, including a smoke exhaust fire damper body, a filter screen and an exhaust fan. The interior of the smoke exhaust fire damper body is provided with a valve, and the exhaust ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K17/38F16K27/02
CPCF16K17/386F16K27/0209
Inventor 顾鉴严晓英
Owner 浙江尚扬通风设备有限公司