CN111076250A

CN111076250A - Maintenance prompting method for central flue purification system

Info

Publication number: CN111076250A
Application number: CN201811230050.3A
Authority: CN
Inventors: 何立博
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2018-10-22
Filing date: 2018-10-22
Publication date: 2020-04-28
Anticipated expiration: 2038-10-22
Also published as: CN111076250B

Abstract

A maintenance prompting method for a central flue purification system comprises the range hoods installed on different floors, the air outlet of each range hood is communicated with a common flue through a smoke pipe, adjustable check valves are installed on the smoke pipes, a flue main fan is installed in the common flue, the flue main fan comprises an impeller, a centralized filter is installed in the common flue, and the flue main fan is provided with a current detection module or a power detection module. The maintenance prompting method of the central flue cleaning system carries out forward and backward comparison through power data of a flue main fan, judges whether a centralized filter in a flue needs to be maintained by using a resistance coefficient detection principle, and judges whether an impeller of the flue main fan needs to be maintained by carrying out forward and backward comparison on starting time of the flue main fan, so that more reasonable active maintenance service is provided for a smoke exhaust system of a user of the whole building, and the central flue cleaning system can be always in a better working state.

Description

Maintenance prompting method for central flue purification system

Technical Field

The invention relates to a central purification system, in particular to a maintenance prompting method of a central flue purification system.

Background

In recent years, a user side angle-adjustable valve is combined with a roof flue outlet main fan to intensively filter and discharge, and the valve is applied to certain finish-finished building plates, the roof main fan, namely a central range hood, performs frequency conversion and valve plate preset angle to realize flow distribution aiming at different start-up rate users, the problem of bad smoke discharge of bottom users can be solved to a certain extent, and meanwhile, the flow rate and the noise of the whole flue system are effectively controlled. In addition, in order to purify the oil smoke entering the common flue, a flue centralized filter is generally arranged in the common flue, the size limitation of the centralized filter is small, the purification effect is better, and the oil smoke can be effectively purified before entering a flue main fan. After the flue system is used for a long time, the performance can be reduced because the flue centralized filter can generate a blocking phenomenon, so that the system resistance is increased, the smoke discharge of a user is seriously influenced, and the flue system needs to be replaced in time. At present, people generally judge whether the centralized filter needs to be cleaned or replaced according to the service life or experience, but the service condition of the centralized filter cannot be truly reflected by the maintenance mode, and the condition that the filter is replaced too early or too late can occur. In addition, after the central flue system works for a long time, because the amount of wind of flue motor under the same rotational speed can diminish, power also has great change to, impeller greasy dirt is accumulated and can make the boot-up time grow, consequently, also need maintain the impeller of flue main blower, and likewise, current flue system also can't carry out intelligent suggestion to the impeller maintenance, the improper condition in maintenance opportunity appears easily.

Disclosure of Invention

The invention aims to solve the technical problem of providing a maintenance prompting method of a central flue purification system, which can intelligently detect whether a centralized filter and an impeller need to be maintained and provide active maintenance prompt aiming at the current situation of the prior art.

The technical scheme adopted by the invention for solving the technical problems is as follows: the maintenance prompting method of the central flue purification system comprises the following steps that the range hoods are installed on different floors, the air outlet of each range hood is communicated with a common flue through respective smoke pipes, an adjustable check valve is installed on each smoke pipe, a flue main fan is installed in the common flue and comprises an impeller, and a centralized filter is installed in the common flue, and the maintenance prompting method is characterized in that: the flue main fan is provided with a current detection module or a power detection module, and the maintenance prompting method comprises the following steps:

①, inquiring an idle time period, and starting maintenance detection by the system regularly;

②, opening a valve plate of any adjustable check valve to a certain angle after installation and debugging, closing other adjustable check valves, opening a flue main fan to a certain rotating speed n1 for operation, and recording the starting time t 1;

③, acquiring the current running power W1 of the flue main fan through a current or power detection module of the flue main fan, and recording the current running power W1 as a reference;

④, in the routine maintenance and inspection stage, the flue main fan is started to a certain rotating speed n1 to operate, and the starting time t2 is recorded;

⑤, acquiring the current running power W2 of the flue main fan through a current or power detection module of the flue main fan;

⑥, comparing the W1 and W2 values, and outputting information;

if W2-W1> m, judging that the flue leaks or the current detection module or the power detection module has faults;

if the absolute value W1-W2 is less than or equal to m, judging that the power is in a reasonable range, and continuing to use the filter;

if W1-W2> m, the filter is judged to need maintenance;

⑦, if the filter needs maintenance, then comparing t1 and t 2;

if t2-t1> k, judging that the impeller of the flue main fan is dirty and needs to be maintained;

and if the t2-t1 is less than or equal to k, judging that the impeller does not need maintenance.

Preferably, the central flue purification system further comprises a host controller for controlling the rotation speed of the flue main fan and an indoor unit controller for controlling the opening angle of the valve plate, the host controller and the indoor unit controller can be communicated with each other, and the host controller further judges whether the filter and the impeller need to be maintained by reading power data and starting time data of the flue main fan.

The host controller and the indoor unit controller can communicate in various ways, and preferably, the host controller and the indoor unit controller communicate with each other through the wireless module.

The centralized filter can be arranged at a plurality of positions of the common flue, and is preferably arranged at the front end of the air inlet of the flue main fan.

In order to smoothly drive the valve plate of the check valve to rotate, a valve plate driving module used for driving the valve plate of the adjustable check valve to open and close is installed on the smoke pipe.

Compared with the prior art, the invention has the advantages that: this maintenance suggestion method of central flue system of cleaning carries out the front and back contrast through the power of flue main blower, utilize resistance coefficient to detect the principle and judge whether concentrated filter in the flue needs the maintenance, in addition, under the prerequisite that concentrated filter needs the maintenance, through carrying out the front and back contrast to the start-up time of flue main blower, judge whether the impeller of flue main blower needs the maintenance, therefore, through the timely maintenance to concentrated filter and impeller, provide more reasonable initiative maintenance service for whole building user smoke exhaust system, enable central flue clean system and be in the operating condition of preferred all the time.

Drawings

FIG. 1 is a schematic structural view of a flue system according to an embodiment of the present invention;

FIG. 2 is a structural cross-sectional view of a single extractor hood in accordance with an embodiment of the present invention;

fig. 3 is a flowchart of a maintenance prompting method according to an embodiment of the present invention.

Detailed Description

The invention is described in further detail below with reference to the accompanying examples.

As shown in fig. 1 and fig. 2, the central flue purification system of the present embodiment includes range hoods 1 installed on different floors, an air outlet of each range hood 1 is communicated with a common flue 3 through a respective smoke tube 2, an adjustable check valve 4 is installed in each smoke tube 2, the adjustable check valve includes a valve plate 41 and a valve plate driving module 42, and the valve plate 41 is driven to open and close by the valve plate driving module 42.

A flue main fan 5 and a centralized filter 6 are arranged in the common flue 3, the flue main fan 5 comprises an impeller, the centralized filter 6 is positioned at the front end of an air inlet of the flue main fan 5, and the centralized filter 6 can purify oil smoke entering the common flue 3, so that clean and pollution-free gas is discharged from the common flue 3.

The central flue system also comprises a host controller 7 and an indoor unit controller 8, wherein the host controller 7 is installed on the roof, and the indoor unit controller 8 is installed on each range hood 1. The main machine controller 7 controls the rotation speed of the flue main fan 5 through a flue fan driving module (not shown in the figure), and the indoor machine controller 8 can control the valve plate driving module 42 so as to control the opening angle of the valve plate 41.

The host controller 7 and the indoor unit controller 8 can communicate with each other through a wireless module (not shown), and after the host controller 8 communicates with the indoor unit controller 8, a logical judgment is given to judge whether the central flue purification system needs to be maintained.

Tests show that the flow speed is reduced and the actual power of the flue main fan 5 is reduced along with the increase of the flue resistance under the condition that the flue main fan 5 has the same rotating speed.

As shown in fig. 3, the maintenance prompting method of the central flue purification system includes the steps of:

⑥, comparing the W1 and W2 values, and outputting information;

if W1-W2> m, the filter is judged to need maintenance;

⑦, if the filter needs maintenance, then comparing t1 and t 2;

In step ①, the idle period may be set from 11 pm to 5 pm.

In the maintenance prompting method, the host controller 7 can read the power data and the start time data of the flue main fan 5, and perform maintenance prompting through comparison and judgment. Therefore, through timely maintenance of the centralized filter and the impeller, more reasonable active maintenance service is provided for the smoke exhaust system of the whole building user, the central flue purification system can be always in a better working state, and the phenomenon of difficult smoke exhaust caused by blockage of the centralized filter and oil contamination of the impeller is avoided.

Claims

1. The utility model provides a maintenance suggestion method of central flue clean system, central flue clean system is including installing range hood (1) at different floors, and the air outlet of every range hood (1) all is linked together with public flue (3) through respective tobacco pipe (2), all installs adjustable check valve (4) in every tobacco pipe (2) install flue main blower (5) in public flue (3), and flue main blower (5) are including the impeller, install in public flue (3) and concentrate filter (6), its characterized in that: the flue main fan (5) is provided with a current detection module or a power detection module, and the maintenance prompting method comprises the following steps:

⑥, comparing the W1 and W2 values, and outputting information;

if W1-W2> m, the filter is judged to need maintenance;

⑦, if the filter needs maintenance, then comparing t1 and t 2;

2. The maintenance prompting method for a central flue purification system according to claim 1, characterized in that: the central flue purification system also comprises a host controller (7) used for controlling the rotating speed of the flue main fan (5) and an indoor unit controller (8) used for controlling the opening angle of the valve plate, wherein the host controller (7) and the indoor unit controller (8) can be communicated with each other, and the host controller (7) also judges whether the filter and the impeller need to be maintained or not by reading power data and starting time data of the flue main fan (5).

3. The maintenance prompting method for a central flue purification system according to claim 2, characterized in that: the host machine controller (7) and the indoor machine controller (8) are communicated with each other through a wireless module.

4. The maintenance prompting method for a central flue purification system according to claim 1, characterized in that: the centralized filter (6) is arranged at the front end of the air inlet of the flue main fan (5).

5. The maintenance prompting method for a central flue purification system according to claim 1, characterized in that: and a valve plate driving module (42) for driving a valve plate (41) of the adjustable check valve (4) to open and close is arranged on the smoke pipe (2).