Self-adaptive coding method of flue check valve

Abstract

The invention provides a self-adaptive coding method of a flue check valve. The self-adaptive coding method comprises the following steps that (1), all check valve pieces are opened to a same angle, and a flue draught fan is started; (2), a flow detection module is used for obtaining current flow of corresponding range hoods; (3), the flow rate of each range hood is obtained according to the step(2), the check valve pieces are sorted; (4), the check valve pieces which meet a flow absolute difference of the range hoods of adjacent floors between 0.01m<3> / min and 0.9m<3> / min are marked, and other check valve pieces are closed; (5), current flow is obtained again according to the range hoods corresponding to the check valve pieces marked in the step (4); (6), the step (3), the step (4) and the step (5) are repeated, and sorting is finished; and (7), a sequence of the flow from small to large is defaulted as a sequence of the floors from low to high, and the check valve pieces are subjected to address code binding of the floors and valve pieces. According to the self-adaptive coding method of the flue check valve, flow control is used for automatically configuring a relationship of the floors and valves, so that a valve body is adaptive matching, and floor recoding distribution network is not required.

Description

technical field [0001] The invention relates to a kitchen flue system, in particular to an adaptive coding method for a flue check valve. Background technique [0002] At present, the floors of newly-built buildings in cities are generally higher and higher. Since the outlets of high-rise public flues are generally set on the top of the floors, the switching status of the range hoods of each user's home will affect the resistance of the system outlet, making the smoke exhaust situation of users at the bottom poor. . In recent years, the user-side adjustable angle valve combined with the centralized filtration and discharge of the main fan at the flue outlet on the roof has begun to be used in some well-decorated buildings. The main fan on the roof, that is, the central range hood, performs frequency conversion + valve preset for users with different operating rates. Flow distribution can be achieved at an angle, which can solve the bad smoke exhaust situation of users at th...

AI Technical Summary

Problems solved by technology

[0002] At present, the floors of newly-built buildings in cities are generally higher and higher. Since the outlets of high-rise public flues are generally set on the top of the floors, the switching status of the range hoods of each user's home will affect the resistance of the system outlet, making the smoke exhaust situation of users at the bottom poor.

In recent years, the user-side adjustable angle valve combined with the centralized filtration and discharge of the main fan at the flue outlet on the roof has begun to be used in some well-decorated buildings. The main fan on the roof, that is, the central range hood, performs frequency conversion + valve preset for users with different operating rates. Flow distribution can be achieved at an angle, which can solve the bad smoke exhaust situation of users at the bottom to a certain extent, and at the same time effectively control the flow rate and noise of the entire flue system; however, the regulating valve in this way needs to be manually bound to the valve and the floor in advance, and the installation workload is particularly large , the user needs to re-bind the floor information after replacing the valve, and the operation is more troublesome

In addition, for buildings such as engineering and fine decoration, because the resistance of different floors will change (the increase in the distance of the flue will increase the loss along the way, and the opening of the upstairs valve will also affect the downstairs), the traditional method is simply carried out with a preset fixed angle ( Code the valve according to different floors and then check the table or calculate) installation and debugging, not only is it troublesome, but also the actual flow rate of each household has a large deviation

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