Flow distribution control method of high-rise building central flue system

A technology of flue system and control method, which is applied in the direction of heating method, oil fume removal, vertical pipeline, etc., can solve the problems of high energy consumption, insufficient energy saving, etc., achieve less loss, eliminate the difference in smoke exhaust effect, and control the process efficiently Effect

Pending Publication Date: 2020-05-26
NINGBO FOTILE KITCHEN WARE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can be seen that this kind of control method achieves balanced flow adjustment by increasing the resistance at the outlet, and the energy consumption is relatively large, which is not efficient enough and energy-saving.

Method used

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  • Flow distribution control method of high-rise building central flue system
  • Flow distribution control method of high-rise building central flue system
  • Flow distribution control method of high-rise building central flue system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0066] like Figure 1 to Figure 6 As shown, the central flue system of this embodiment includes indoor units 1 installed on different floors, and the air outlets of each indoor unit 1 are communicated with the common flue 3 through their own smoke pipes 2, and installed on the smoke pipes 2 There is a fan flow detection module 4, and the fan flow detection module 4 may use a flow speed detection module or a pressure detection module. The flow distribution control method of the central flue system of a high-rise building pre-sets the indoor unit target flow QL within the target range [Qx, Qd], and the flow distribution control method includes a slave control method and a master control method.

[0067] Wherein, the slave control method includes the following steps:

[0068] ①. Turn on any indoor unit and run at the default speed or gear;

[0069] ②. Detect and calculate the current flow Qm through the fan flow detection module; calculate the motor speed of the corresponding i...

Embodiment 2

[0103] like Figure 7 and Figure 8 As shown, the host in this embodiment is one of the turned-on indoor units 1, and accordingly, the host control method includes the following steps:

[0104] ①, the main machine is turned on first and is in the stand-alone running state;

[0105] ②. Obtain other slave machine startup information and flow information;

[0106] ③. Determine whether the flow rate of the machine is still higher than the target flow rate when the machine is running at the lowest gear.

[0107] If so, increase the target flow QL of the slave machine;

[0108] If not, go to step ④;

[0109] ④. Determine whether the flow rate of the machine is still lower than the target flow rate when it is running in the highest gear;

[0110] If so, the flow rate of the machine is still lower than the target flow rate when the machine is running at the highest gear, and the target flow rate of the slave machine should be reduced;

[0111] If not, go to step ⑤;

[0112] ⑤. ...

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Abstract

The invention discloses a flow distribution control method of a high-rise building central flue system. According to the flow distribution control method, the central flue system comprises indoor units installed on different floors, an air outlet of each indoor unit communicates with a public flue through a corresponding smoke pipe, a flow speed detection module or a pressure detection module is installed on each smoke pipe, and target flow QL is preset within a target range [Qx, Qd]; and the flow distribution control method comprises a slave control method and a host control method. The flowdistribution control method has the advantages that the flow speed detection modules or the pressure detection modules at the outlet ends of extractor hoods are used for detecting current actual flowor outlet pressure condition of the extractor hoods, and whether the current rotating speed or gear of motors of the extractor hoods is increased or decreased or not is determined to achieve flow control; and according to the whole control method, basic guarantee of effective air volume can be achieved, the smoke exhaust effect difference of different floors is eliminated, and meanwhile through frequency conversion or gear shifting control over the indoor extractor hoods, the control process becomes efficient, and energy saving and low loss can be achieved.

Description

technical field [0001] The invention relates to a central flue system, in particular to a flow distribution control method for the central flue system of a high-rise building. Background technique [0002] At present, the floors of newly-built buildings in cities are generally higher and higher, and are mainly decorated with engineering. Most high-rise residences use indoor range hoods, smoke pipes, check valves and public flues to connect, so that the cooking fumes in the kitchen can pass through the indoor exhaust pipes. The power range hood is discharged into the public flue through the smoke pipe. Since the outlet of the high-rise public flue is generally set at the top, the switch of the range hood at the user's home will affect the system outlet resistance. The increase in the distance of the flue will increase the loss along the way, and the exhaust of the range hood upstairs will cause the smoke exhaust resistance downstairs. The increase makes the pressure distribu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24C15/20E04F17/02
CPCE04F17/02F24C15/2021
Inventor 何立博
Owner NINGBO FOTILE KITCHEN WARE CO LTD
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