Adaptive coding method for flue check valves

Abstract

The invention discloses an adaptive coding method for flue check valves. The adaptive coding method comprises the following steps that 1, any two adjustable check valves are opened to the same angle,other adjustable check valves are closed, and range hoods are started to operate at the same gear; 2, the fan flow corresponding to each range hood is obtained; 3, the flow obtained in the step 2 is recorded, and address codes of the adjustable check valves are sorted according to the flow; 4, one of the adjustable check valves is closed, a new adjustable check valve is opened to the same openingangle as the adjustable check valves in the step 1, and the step 2 and the step 3 are repeated; 5, all adjustable check valves are treated to complete sorting; and 6, a default sequence of the flow from small to large is a sequence of floors from low to high, and address codes of valve pieces of the adjustable check valves are bound to the floors. The adaptive coding method of the flue check valves utilizes the curvilinear relationship of system flow change caused by main motor power (or current) changing with the outlet resistance change so that a valve body can be adaptively matched withoutthe need of floor recoding and network distribution.

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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