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Fireproof double-valve check valve used for common kitchen system flue and provided with drive device

A driver and check valve technology, which is applied in the field of smoke and fire prevention in flues, can solve the problems of difficult valve switching, reverse flow, and inability to discharge smoke and smoke normally, and achieve good results.

Inactive Publication Date: 2016-01-20
GUILIN LIPU CHAOJIN KITCHEN EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Although this kind of flue fire check valve can block smoke and prevent fire, it is manually opened and closed by gravity, and the valve is not closed very tightly. Especially in winter, when the smoke oil is condensed and viscous, it makes it difficult to open and close the valve, and not only cannot exhaust smoke normally. also cause smoke backflow

Method used

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  • Fireproof double-valve check valve used for common kitchen system flue and provided with drive device
  • Fireproof double-valve check valve used for common kitchen system flue and provided with drive device
  • Fireproof double-valve check valve used for common kitchen system flue and provided with drive device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0023] A public kitchen system flue fire-proof double-valve check valve provided with a driver is formed by matching and fitting a main valve body 1 and an auxiliary valve body 2 into one body.

[0024] The main valve body 1 is a circular cavity with two small ends and a large middle. There is a square protrusion outside one end of the cavity. The smoke outlet of the cavity is set in an arch shape. The supporting plate 17 of the auxiliary valve body 2.

[0025] The smoke inlet of the main valve body 1 can also be set in a circular shape, and the remaining part to the front end is set in a square shape, and the top of the fire damper 11 is also set in a square shape.

[0026] The auxiliary valve body 2 is formed into a rectangular parallelepiped without an upper cover by a circular smoke inlet gradually becoming a square shape and two right-angled surfaces clamping the sealing valve 6 .

[0027] A driver 3 is arranged in the middle of the rear end of one side of the auxiliary ...

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Abstract

The invention relates to a fireproof double-valve check valve used for a common kitchen system flue and provided with a drive device. The fireproof double-valve check valve comprises a main valve body, an auxiliary valve body, a fireproof valve, a sealing valve and an assembling structure. The fireproof double-valve check valve is characterized in that the driver and a drive linkage mechanism for driving the sealing valve and the fireproof valve are further arranged. By means of the check valve of the structure, the sealing valve and the fireproof valve can be slowly turned on or turned off forcibly, the phenomenon that the sealing valve and the fireproof valve cannot be turned on or turned off completely is avoided, backward flow of smoke is avoided, and the smoke stop and fireproof effects are better.

Description

technical field [0001] The invention relates to a flue smoke prevention and fire prevention technology, in particular to a flue fire prevention double-valve check valve provided with a driver for a public kitchen system. Background technique [0002] The flue check valve is a fire-proof and smoke-blocking appliance commonly used in every household in the public kitchen system. The valve body and the auxiliary valve body assembled in the main valve body are composed of two right-angle surfaces holding the sealing valve and two right-angle surfaces holding the fire damper. The sealing valve is square, and its upper end is connected with the sealing The valve connecting rod is connected, the fire damper is in the shape of an arch, and its bottom is connected with the fireproof connecting rod opposite to the sealing valve. The rod base is movably connected with the connecting rod base arranged in the center of the upper part of the fire damper, and a manual on-off valve connect...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K15/18F16K31/04F16K31/53
CPCF16K31/041F16K31/535F16K15/1821
Inventor 黄加丰黄仕波
Owner GUILIN LIPU CHAOJIN KITCHEN EQUIP CO LTD
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