CN211553681U

CN211553681U - Fuming device for CCM (continuous current mode) test of large air purifier

Info

Publication number: CN211553681U
Application number: CN201921384368.7U
Authority: CN
Inventors: 刘俊杰; 李寒羽
Original assignee: Tianjin University
Current assignee: Tianjin University
Priority date: 2019-08-25
Filing date: 2019-08-25
Publication date: 2020-09-22
Anticipated expiration: 2029-08-25

Abstract

The utility model discloses a smoke generating device for large-scale air purifier CCM test, including static pressure case smoke generating module, air-vent valve, flowmeter, electric stove silk heating module, switching power supply, time relay, contactor, control panel and water protective layer, level gauge. The smoke generating device can be used for igniting a plurality of cigarettes at one time to generate dust, so that the effective smoke generating amount of a single cigarette is increased, and the CCM of the large air purifier is rapidly measured. The utility model discloses a to the effective smoke volume calculation research of different smoke counts, the design is disposable can take place the smoke generating device of 50 cigarettes (cigarette count is adjustable) at most to can realize high temperature control automatic fire extinguishing, measure for large-scale clarifier CCM and shorten the experimental time greatly, reduce manpower consumption, also guarantee the security of experiment when guaranteeing to smoke evenly.

Description

Fuming device for CCM (continuous current mode) test of large air purifier

Technical Field

The utility model relates to an air purifier performance test evaluation field especially relates to a smoke generating device for large-scale air purifier CCM test.

Background

The quality of indoor air is gradually concerned by people in recent years, and as people move indoors most of the time, the air purifier is used more and more widely as an effective way for improving the quality of the indoor air, and the large air purifier is completely open in the market due to the characteristics of large air volume, wide coverage area, low unit energy consumption and the like. Because the types and the quality of air purifiers on the market are not uniform, GB18801-2015 air purifier takes the performances of the clean air quantity (CADR), the accumulated purification quantity (CCM) and the like as evaluation indexes, cigarettes are used as dust sources, as the measurement of the CCM needs to consume a large amount of cigarettes, 50 cigarettes are contained in a single dust, most mechanisms adopt a continuous single-cigarette combustion method for testing, the method has long experimental time, particularly aiming at the CCM measurement of a large air purifier, the CADR can not be reduced by more than 5% in a single dust containing 50 cigarettes, so that the number of cigarettes contained in the single dust is more, and the method is undoubtedly an examination on manpower.

Therefore, how to shorten the CCM test time of the large air purifier, save manpower and energy consumption, improve the effective smoke amount and ensure the safe and stable experiment is a problem which is urgently needed to be solved at present.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problem of large-scale air purifier CCM test, provided a quick smoke generating device.

The utility model discloses a solve the technical problem among the prior art, the technical scheme who provides as follows: a fuming device for CCM (continuous current mode) testing of a large-scale air purifier comprises a static pressure box fuming module, a pressure regulating valve, a flowmeter, an electric furnace wire heating module, a switching power supply, a time relay, a contactor, a control panel, a water protective layer, a liquid level meter, a plurality of gas transmission pipelines and electric wires; the pressure regulating valve, the flow meter and the smoke generating module of the static pressure box are connected through a gas transmission pipeline, and air output by the air pump is transmitted to the pressure regulating valve and the flow meter through the gas transmission pipeline to regulate pressure and control the flow of gas flowing into the smoke generating module of the static pressure box, so that the smoke generating progress is controlled; the electric stove wire heating module, the switching power supply, the time relay, the contactor and the control panel are connected through electric wires to form a control circuit, and the electric stove wire heating start-stop state can be carried out by operating a button of the control panel; the liquid level meter is directly arranged on the water protective layer to display the liquid level; the static pressure box smoke generating module, the electric furnace wire heating module and the water protective layer form a detachable box body, wherein the water protective layer can be made into a drawer type so as to change water in time;

the static pressure box smoke generating module and the pressure regulating valve are used for inserting cigarettes required by CCM test into the cigarette inserting holes of the adjustable switches, clean air is compressed by the compressor, airflow flows into the static pressure box after the airflow is regulated by the pressure regulating valve and the flow is controlled by the flowmeter, and the airflow is uniformly distributed in 50 smoke generating holes; the electric stove wire, the switch power supply, the time relay, the contactor and the control panel are controlled by current to heat the electric stove wire to the temperature at which the cigarettes can burn, the heating time is controlled by the time relay, the power-off and heating stop of all the cigarettes after being ignited are ensured, the switch power supply can be manually controlled to stop the heating of the electric stove wire, and the dual-protection effect is achieved; the water protection layer and the liquid level meter are manufactured into drawer type, and the liquid level meter is added on the layer, so that the water quantity of the layer is ensured, the function of containing and thoroughly extinguishing cigarette ends is achieved, the safety of an experiment is ensured, and the post-treatment of the experiment is convenient; the fuming temperature sensor and the automatic fire extinguishing device can monitor the fuming temperature in real time, and can perform high-temperature alarm and automatically inject fire extinguishing agent to eliminate fire hazard.

Compared with the prior art, the beneficial effects of the utility model reside in that:

(1) the utility model discloses can send out 50 cigarette at most simultaneously, effectively increase single volume of giving out smoke, to small-size clarifier CCM test, can once only accomplish the single and hold dirt.

(2) The utility model discloses to large-scale clarifier CCM test, the single holds when dirt surpasses 50 cigarettes, can shorten the experimental time greatly, uses manpower sparingly and energy consumption.

(3) The utility model discloses can be fuming simultaneously through timing and the dual assurance experiment safety of manual control, establish good basis for CCM measuring device's development.

(4) The utility model discloses can be when fuming the real-time supervision temperature of fuming, realize that the automatic fire extinguishing agent that pours into of high temperature alarm eliminates the conflagration hidden danger.

Drawings

FIG. 1 is a schematic view of the structure of the device of the present invention;

figure 2 is the utility model discloses static pressure case smoke generating module sketch map: a-a front view; b-top view;

FIG. 3 is a schematic view of the heating module of the electric furnace wire of the present invention: a-a rear view; b-section view;

figure 4 is a graph of the effective smoke output for a reduced single cigarette.

Reference numerals:

1-pressure regulating valve, 2-flowmeter, 3-air inlet, 4-static pressure box, 5-smoke inserting hole, 6-switching power supply, 7-time relay, 8-control panel, 9-electric furnace wire, 10-smoke generating hole, 11-heat radiating hole, 12-water protective layer, 13-liquid level meter, 14-smoke generating temperature sensor and 15-automatic fire extinguishing device.

Detailed Description

The technical solution of the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments, which are only illustrative and not intended to limit the present invention.

Fig. 1 to 3 show, the utility model relates to a smoke generating device for large-scale air purifier CCM test, include by air-vent valve 1, flowmeter 2, inlet port 3, static pressure case 4, insert the static pressure case smoke generating module that cigarette hole 5 constitutes, by switching power supply 6, time relay 7, control panel 8, electric stove silk 9, the electric stove silk heating module that smoke hole 10 and louvre 11 are constituteed to and water protective layer 12 and level gauge 13.

Connection relation among the components: the pressure regulating valve 1, the flowmeter 2 and the smoke generating module of the static pressure box are connected through a gas transmission pipeline, and air output by the air pump is transmitted to the pressure regulating valve 1 and the flowmeter 2 through the gas transmission pipeline to regulate pressure and control the flow of gas flowing into the smoke generating module of the static pressure box, so that the smoke generating progress is controlled; the electric stove wire 9, the switching power supply 6, the time relay 7 and the control panel 8 are connected into a control circuit through electric wires, and the heating start-stop state of the electric stove wire can be carried out by operating the buttons of the control panel 8; the liquid level meter 13 is directly arranged on the water protective layer 12 to display the liquid level; the static pressure box smoke generating module, the electric furnace wire heating module and the water protective layer 1 form a detachable box body, wherein the water protective layer can be made into a drawer type so as to change water in time.

The static pressure box smoke generating module is used for inserting cigarettes required by CCM test into the cigarette inserting holes of the adjustable switch, clean air is compressed by the compressor, airflow is regulated by the pressure regulating valve 1, the flow is controlled by the flow meter 2, then flows into the static pressure box 4 through the air inlet holes 3 and is uniformly distributed in 50 cigarette inserting holes 5, air required by cigarette combustion is provided, and positive pressure smoke generation is realized; the electric stove wire heating module controls the electric stove wire 9 to be heated to the temperature at which the cigarettes can burn through current, the heating time is controlled by the time relay 7, the heating is stopped when the power is off after all the cigarettes are ignited, the switch power supply 6 can be controlled by a control panel 8 manually to stop the electric stove wire heating, the dual protection effect is achieved, the cigarettes generated by the burning of the cigarettes flow into the test chamber through the smoke generating hole 10, and the heat generating distribution box is discharged through the heat radiating holes 11; the water protection layer 12 is made into a drawer type, and the liquid level meter 13 is added on the layer, so that the water quantity of the layer is ensured, the function of holding and completely extinguishing cigarette ends is achieved, the safety of an experiment is ensured, and the post-treatment of the experiment is convenient; the fuming temperature sensor 14 and the automatic fire extinguishing device 15 can monitor the fuming temperature in real time, alarm at high temperature and automatically inject fire extinguishing agent, so that the fire hazard is eliminated.

The following is a standard method for measuring the effective smoke generation, which requires a large purifier size of 30m³The test chamber was used for CCM testing, so 30m³The test chamber is used for testing the effective smoke generation amount:

at 30m³And igniting single or multiple cigarettes in the test chamber, turning on a stirring fan in the chamber for 10min, turning off the stirring fan, standing for 10min, and measuring and recording the effective generation amount of the cigarette particles by using a particle weighing instrument. The effective smoking amount of 2, 8 and 25 cigarettes is measured in the experiment and is converted into the effective smoking amount of a single cigarette, and as a result, as shown in fig. 4, the more the cigarettes are simultaneously ignited by one time of dust holding, the larger the effective smoking amount of the single cigarette is converted into, so that the effective smoking amount can be improved by the smoking device capable of simultaneously lighting 50 cigarettes, and meanwhile, the CCM test time is greatly shortened.

It should be understood that the embodiments and examples discussed herein are illustrative only and that modifications or changes in light thereof will be suggested to persons skilled in the art and are to be included within the purview of the appended claims.

Claims

1. A fuming device for CCM test of a large-scale air purifier is characterized by comprising a static pressure box fuming module consisting of a pressure regulating valve, a flowmeter, an air inlet hole, a static pressure box and a smoke inserting hole, and an electric furnace wire heating module consisting of a switching power supply, a time relay, a control panel, an electric furnace wire, a smoke generating hole and a heat radiating hole;

the pressure regulating valve, the flow meter and the smoke generating module of the static pressure box are connected through a gas transmission pipeline, and air output by the air pump is transmitted to the pressure regulating valve and the flow meter through the gas transmission pipeline to regulate pressure and control the flow of gas flowing into the smoke generating module of the static pressure box, so that the smoke generating progress is controlled; the electric stove wire, the switching power supply, the time relay, the contactor and the control panel are connected into a control circuit through electric wires; the static pressure box smoke generating module, the electric furnace wire heating module and the water protective layer form a detachable box body;

the cigarette required by CCM test is inserted into the cigarette hole of the adjustable switch, clean air is compressed by the compressor, and airflow flows into the static pressure box after the pressure of the pressure regulating valve and the flow of the flowmeter are controlled, and is uniformly distributed in the cigarette inserting hole.

2. The smoke generating device for the CCM test of the large-scale air purifier of claim 1, wherein the liquid level meter is directly mounted on the water protection layer to display the liquid level.

3. The smoke generating device for the CCM test of the large-scale air purifier as claimed in claim 1, wherein the electric stove wire heating module, the switching power supply, the time relay, the contactor and the control panel are controlled by current to control the electric stove wire to be heated to the temperature at which the cigarettes can be burned, the heating time is controlled by the time relay to ensure that all the cigarettes are ignited and then power is cut off to stop heating, or the switching power supply is controlled manually to stop heating of the electric stove wire.

4. The smoke generating device for the CCM test of the large-scale air purifier as claimed in claim 1, wherein the static pressure box is uniformly provided with 50 smoke inserting holes.

5. The smoke generating device for the CCM test of the large air purifier according to claim 1, wherein the smoke generating device comprises a smoke generating temperature sensor and an automatic fire extinguishing device, the smoke generating temperature sensor and the automatic fire extinguishing device monitor smoke generating temperature in real time, alarm at high temperature and automatically inject fire extinguishing agent.