CN1663700A

CN1663700A - Central air conditioner air duct cleaning method employing closed-circulating dust collection manner and apparatus therefor

Info

Publication number: CN1663700A
Application number: CN 200510055287
Authority: CN
Inventors: 马重芳; 唐志伟; 吴玉庭; 李军
Original assignee: Beijing University of Technology
Current assignee: Beijing University of Technology
Priority date: 2005-03-18
Filing date: 2005-03-18
Publication date: 2005-09-07
Anticipated expiration: 2025-03-18
Also published as: CN100408207C

Abstract

The invention relates to the air passage cleaning method of the central air-conditioner and its equipment. The prior art has low efficient and can't prevent re-pollution. The method of the invention is characterized in that the cleaning soft tube (5), the big power blower fan (8), the high efficient dust collecting clarifier (9) and the air passage cleaned form the close system. The big power fan (8) provides the power to make the dust air flow in the system and be filtered by the clarifier (9) to continue recycling. The equipment comprises the air cell (1), the air passage being cleaned (3) and the blow and sweep equipment (2). The characteristics are: the dust collector is composed of the high efficient clarifier (9) connected by the soft tubes (5) and the big power fan, and the soft tubes connect the dust collector and the air passage to form the close system. The whole process is in a close system to prevent the second pollution, and increases the cleaning speed and collecting efficiency.

Description

Adopt the central air-conditioning air duct cleaning method and the device thereof of closed-circulating dust collection manner

One, technical field

The present invention relates to a kind of central air-conditioning air duct cleaning method, it is mainly used in the cleaning of central air-conditioning air channel, and the safety of pipe interior laying dust is collected and removed.

Two, background technology

The air channel cleaning that present domestic air-conditioning cleans enterprise's employing is varied, and existing early stage chemical cleaning method and artificial cleaning method also have the more mechanical cleaning method of present employing.China's central air conditioner system air channel laying dust type mostly is respirable dust, and owing to fail for many years in time to clean, general laying dust is thicker.Present existing central air-conditioning air channel cleaning technique all is air motion modes of taking the unidirectional suction of dust catcher.

At present popular at home and abroad is " mechanical ablution is removed in the source " (see figure 1).Its method feature is: adopt blow device 2 to work in and be cleaned 3 inside, air channel, blow device 2 uses modes such as vibrating, stir, whisk off, and the inner-walls of duct laying dust is come off, and is suspended in the pipe interior space; Dust catcher 6 produces air inducing, by flexible pipe 5 with laying dust from the pipeline sucking-off, dust catcher 6 is collected laying dust, air is discharged, thereby reach the removal laying dust, purifies the purpose in air channel.Its device characteristic is: use air bag 1 shutoff to be cleaned the two ends in air channel 3, connect the birdsmouth 4 and dust catcher 6 that is cleaned under the air channel 3 with washing hose 5, form the system of a non-complete closed.The motion of its air-flow relies on the simple suction of dust catcher to realize, after dust-contained airflow enters dust catcher 6 and is cleaned, is directly discharged, and the system pressure balance is entered by new wind and is cleaned the air channel and realizes.Its drawback is: on the one hand, because gas-flow resistance is slow than ambassador's circulation rate of bringing about the desired sensation, rely on the cleaning process power performance of simple drawing-in type of dust catcher not good, air motion speed is slower, and the laying dust collection efficiency is low; On the other hand, because system is not a complete closed, all there is mass exchange in system with outside air all the time, thereby has increased the possibility of pollution sources diffusions, can not stop secondary pollution fully.

Three, summary of the invention

The technical problem to be solved in the present invention is in the cleaning process of above-mentioned central air-conditioning air channel, a kind of employing air-flow closed-circulating dust collection manner air duct cleaning method is provided, overcome the shortcoming that " source removal mechanical cleaning method " utilizes the simple suction airstream motion mode of dust catcher, improve the power performance of air motion, improve the control of dust collection efficiency, effectively avoid secondary pollution; And a kind of central air-conditioning air channel cleaning device that adopts closed-circulating dust collection manner that constitutes based on this method.

The invention provides the method that a kind of central air-conditioning air channel is cleaned, (as shown in Figure 3) it is characterized in that: the dust-contained airflow endless form is the closed cycle mode, washing hose 5, high-power blower 8, high-efficiency dust collecting clarifier 9 and be cleaned the system that air channel 3 has constituted a complete closed in the cleaning process of central air-conditioning air channel, provide power by high-power blower 8, make dust-contained airflow flow, enter inner continuation the in air channel again after dust-contained airflow is filtered through high-efficiency dust collecting clarifier 9 and circulate in internal system.

The device that the present invention is used, comprise air bag 1, be cleaned air channel 3 and blow device 2, as shown in Figure 2, it is characterized in that: the control of dust part of this device connects high-efficiency dust collecting clarifier 9 by flexible pipe 5 and high-power blower 8 is formed, thereby replaced the dust catcher 6 in " mechanical ablution is removed in the source " device, again with flexible pipe 5 with this control of dust part be cleaned air channel 3 and be connected, specifically be connected to: the air intake port 7 of high-efficiency dust collecting clarifier 9 is connected with left side birdsmouth 4 under being cleaned air channel 3 with flexible pipe 5, with flexible pipe 5 the air-out port 12 of high-power blower 8 is connected with right side birdsmouth 13 under being cleaned air channel 3 simultaneously, constitutes the system of a complete closed thus.

Main technical schemes of the present invention is: the laying dust that the air channel inwall adheres to is hit in blow device 2 generation effects down, utilize high-power blower 8 to produce high speed air inducing simultaneously in the internal system of this complete closed, make laying dust be suspended in the pipe interior space, and formation high concentration dust-contained airflow, dust-contained airflow circulates in internal system, realize separating of laying dust and air-flow after filtering through efficient laying dust clarifier 9, thereby with the collection and the removal of laying dust safety.

The invention has the beneficial effects as follows: (1) whole process is carried out in the system of sealing, does not have air-flow to leak, and avoids the diffusion of the pollutant that causes because of air current flow, has effectively stopped secondary pollution.(2) air-flow after the filtration continues to have made full use of the kinetic energy of this part air-flow at the internal system shuttling movement, the system dynamic better performances, and cleaning speed and laying dust collection efficiency are improved.(3) utilization method and apparatus of the present invention cleans State Grid Corporation of China's power supply dispatching center central air-conditioning ventilation shaft, cleans back airduct clean level up to 0.08g/m ², be higher than national standard and require 1.0g/m ²

Four, description of drawings

The present invention will be further described to adopt accompanying drawing below.

Fig. 1 is " mechanical ablution is removed in the source " system principle device schematic diagram;

Fig. 2 is a closed-circulating dust collection manner system principle device schematic diagram;

Wherein: 1 is air bag, and 2 is blow device, and 3 for being cleaned the air channel, 4 is the left side birdsmouth, 5 is flexible pipe, and 6 is dust catcher, and 7 is high-efficiency dust collecting clarifier air intake port, 8 is high-power blower, 9 is the high-efficiency dust collecting clarifier, and 10 is high-efficiency dust collecting clarifier air-out port, and 11 is high-power blower air intake port, 12 is high-power blower air-out port, and 13 is the right side birdsmouth.

Fig. 3 is an air-flow endless form schematic block diagram of the present invention.

Five, the specific embodiment

Specific embodiments of the present invention are: at first blow device 2 is put into by access hole and be cleaned the air channel, and with two ends, air bag 1 shutoff air channel, with rivet birdsmouth 4,13 is fixed under the access hole of air channel; The air intake port 11 composition dust-precipitating systems that connect the air-out port 10 and the high-power blower 8 of high-efficiency dust collecting clarifier 9 with flexible pipe 5; With flexible pipe 5 the air intake port 7 of high-efficiency dust collecting clarifier 9, high-power blower 8 air-out ports 12 are connected with left side birdsmouth 4, right side birdsmouth 13 under being cleaned air channel 3 respectively, constitute the system of a complete closed, for guaranteeing sealing, adopt fixedly flexible pipe device port of pipe collar; Open high-power blower 8 then, air-flow begins to start mechanical blow device 2 simultaneously in the internal system circulation, and the air channel laying dust is hit down, is suspended in the pipe interior space and mixes the formation dust-contained airflow with air-flow; Dust-contained airflow circulates in internal system, is filtered through high-efficiency dust collecting clarifier 9, and the realization dust separates with air-flow, thereby pollutant is removed safely.

Claims

1, a kind of central air-conditioning air duct cleaning method that adopts closed-circulating dust collection manner, it is characterized in that: the dust-contained airflow endless form is the closed cycle mode, washing hose (5), high-power blower (8), high-efficiency dust collecting clarifier (9) and be cleaned the system that air channel (3) has constituted a complete closed in the cleaning process of central air-conditioning air channel, provide power by high-power blower (8), make dust-contained airflow flow, enter inner continuation the in air channel again after dust-contained airflow is filtered through high-efficiency dust collecting clarifier (9) and circulate in internal system.

2, a kind of used device of central air-conditioning air duct cleaning method that adopts closed-circulating dust collection manner according to claim 1, comprise air bag (1), be cleaned air channel (3) and blow device (2), it is characterized in that: the control of dust part of this device connects high-efficiency dust collecting clarifier (9) by flexible pipe (5) and high-power blower (8) is formed, use again flexible pipe (5) with this control of dust part be cleaned air channel (3) and be connected, specifically be connected to: the air intake port (7) of high-efficiency dust collecting clarifier (9) is connected with left side birdsmouth (4) under being cleaned air channel (3), use flexible pipe 5 that the air-out port (12) of high-power blower (8) is connected with right side birdsmouth (13) under being cleaned air channel (3) simultaneously, constitute the system of a complete closed thus.