An Adaptive Coding Method for Flue Check Valve

Abstract

An adaptive coding method for a flue check valve, comprising the following steps: ① Open any two adjustable check valves to the same angle, close the other adjustable check valves, and turn on the range hood to the same gear for operation ; ②. Obtain the fan flow rate corresponding to the range hood; ③. Record the flow rate obtained in step ②, and sort the address codes of the adjustable check valves according to the flow rate; ④. Close one of the adjustable check valves, open Set a new adjustable check valve to the same opening angle as the adjustable check valve in step ①, and repeat steps ②, ③; ⑤, traverse all adjustable check valves, and complete the sorting; ⑥, the default flow rate is in ascending order For the order of floors from low to high, the address codes of floors and valve sections are bound for adjustable check valves. The self-adaptive coding method of the flue check valve utilizes the curve relationship of the main motor power (or current) and the change of the outlet resistance to cause the change of the system flow, so that the valve body can be adaptively matched, and there is no need to re-code the distribution network on the floor.

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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