UA103661U - The device for assessing performance ionizer air ionizer - Google Patents

Abstract

The device for evaluating the performance of air ionizers consists of a test ionizer, condenser and aerophone counter. The device contains a camera made of antistatic material. An ionizer is located in the upper plane of the chamber, the capacitor has two pins. To the first of the capacitor terminals is attached a metal plate located at the bottom of the chamber. A linear conductor is attached to the second terminal of the capacitor, the size of which is determined by the number of aerophones. The linear conductor is placed through the openings in the chamber above the metal plate directly below the ionizer. The height openings in the chamber allow you to change the distance between the linear conductor and the ionizer. The metal plate and the first output of the condenser are connected to the ground inlet of the microculometer used as an aerophone counter. The second output of the capacitor and the linear conductor via the contacts of the charge reset button are connected to the potential input of the microculometer. In parallel to the capacitor terminals, the open contacts of the capacitor discharge button are on.

Description

The useful model belongs to medical devices for air quality assessment and can be used in medicine to assess the amount of electrical charges of air ions of air ionizers and their compliance with sanitary and hygienic standards and technical requirements.

A well-known analogue is the device - an aeroion microcoulometer |I1| - which has a sensor for accumulating and measuring the amount of electricity in the form of a concentration of electrical charges of aeroions, normalized by size and volume in the form of a ball or cube.

The closest analogue to a useful model is a device for estimating the number of aeroion charges

II), which is based on measuring the concentration of air ions thanks to an aspiration condenser containing an aspiration chamber as a sensor, a fan with constant revolutions for sucking air into the aspiration chamber, measuring electrodes in the form of a cylindrical capacitor on which, depending on the polarity of the supply voltage, aero ions are deposited of opposite polarity and are recorded by a meter with a digital reading or an electrometer.

However, the closest analogue has disadvantages: forced air suction is used, the dependence of the deposition of electrical charges of aeroions on the voltage on the electrodes and the volume of the aspiration chamber affect the accuracy of measuring the concentration of aeroions in the air space. The measurement error reaches significant values. The method of verifying such devices is quite complicated.

Due to the forced air movement, it is impossible to determine the concentration of electrical charges of air ions at a specific point in space, the device determines only the average number of air ions in the room and requires a lot of time to measure.

The basis of a useful model is the task of improving the estimation of the amount of air ions of ionizers for compliance with sanitary and hygienic standards and technical requirements. Increasing the accuracy and speed of measurements.

A useful model is explained by the drawing, which shows the scheme of the device.

The task is solved by the fact that the device consists of the investigated ionizer 1, located in the upper plane of the chamber 2, made of antistatic material, the transmitter of the amount of aeroions consists of a capacitor C with two terminals, a metal plate 4, located in the lower part, is attached to the first of the terminals of the capacitor camera 2, to the second

A linear conductor 5 is connected to the output of the capacitor C, the size of which determines the number of air ions, the linear conductor 5 is placed through the holes 6 in the chamber above the metal plate 4 directly below the ionizer 1, the height holes in the chamber 2 allow you to change the distance between the linear conductor 5 and the ionizer 1, metal plate 4 and the first output of the capacitor are connected to the ground input of the microcoulometer 7, the second output of the capacitor and the linear conductor 5 through the contacts of the charge reset button 8 are connected to the potential input of the microcoulometer 6, in parallel with the capacitor outputs, the open contacts of the capacitor discharge button 9 are connected.

The useful model provides the following advantages: - due to the antistatic chamber, it reduces the influence of the movement of the surrounding air on the flow of aeroions, which increases the reliability of the assessment; - the use of buttons to reset the charge and discharge of the capacitor allows to simplify the operation of determining the number of charges or aeroions; - the use of a linear conductor reduces the dependence of the effect of the sensor on the estimated flow, because the linear conductor creates less resistance to the estimated flow of aeroions, that is, it selects only a small proportional part of the flow of aeroions, and the sensitivity of the sensor is determined only by the active length of the linear conductor and the range of the microcoulometer.

A useful model works as follows.

The studied ionizer is placed in the upper part of the antistatic chamber 2, above the linear conductor 5 at the required height, which is determined by the location of the hole 6 in which the linear conductor is installed. the ionizer is activated by connecting to a power source. Microcoulometer 7 is set to measurement mode. By closing the contacts of the capacitor discharge button 9, the measurement is started. Aeroions settle on the linear conductor 5 and accumulate on the capacitor C over a certain time. By closing the contacts of the charge reset button 8, the latter is applied to the potential input of the microcoulometer 7, set in the measurement mode. They count the number of charges on the microcoulometer scale. The number of charges (M) per unit of length (cm, dm, m) in the flow of the ionizer at the set height is determined by the formula: m - ODi et) (3 where: O - readings of the microcoulometer, nC, (μC);

And - the length of the linear sensor, cm, (dm, m);

/k e - electron charge, 16x107-19 j;

Ii - time of measurement.

Thus, in comparison with the nearest analogues, the model is useful, it allows to improve the estimation of the amount of air ions of ionizers, to reduce the influence of external factors on the accuracy of the estimation due to the antistatic chamber.

Source of information: 1 V.P. Manoilov, P.P. Martynchuk, O.L. Korenivska Patent of Ukraine for the invention No. 94169 dated 04/11/2011. Mo Bulletin 7. 2 Aeroion counter "Sapphire - ZK". Instructions for use.

Claims (1)

USEFUL MODEL FORMULA A device for evaluating the performance of air ionizers, consisting of a test ionizer, a capacitor and an aeroion counter, which is characterized by the fact that it contains a chamber made of antistatic material, in the upper plane of which the ionizer is located, the capacitor has two terminals, to the first of terminals of the capacitor, a metal plate placed in the lower part of the chamber is connected, a linear conductor is connected to the second terminal of the capacitor, the size of which determines the amount of air ions, the linear conductor is placed through the holes in the chamber above the metal plate directly under the ionizer, while the holes in the height of the chamber allow you to change the distance between the linear conductor and the ionizer, the metal plate and the first terminal of the capacitor are connected to the ground input of the microcoulometer used as an air ion counter, the second terminal of the capacitor and the linear conductor through the contacts of the charge reset button are connected to the potential input microcoulometer, and in parallel with the terminals of the capacitor, the open contacts of the capacitor discharge button are switched on. i, M I i u I / / / i / g ga i V : / ; start what I x M Y x "5 OB only x Mk U y - a o i; I k. a y We y I | | 3 ! gy / z o