JP3364376B2 - Ozone leak dual detector - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention compares the ozone content in the atmosphere at the site (room) where the ozone generator (generation) is installed with the ozone content in the outside normal atmosphere (outside air), and The present invention relates to a detector for detecting the amount of ozone leaked from the production site.

[0002]

2. Description of the Related Art Conventionally, there is no densitometer that can be decisively reliable and evaluated as a method for measuring the concentration of ozone.
This time, as disclosed by the applicant in Japanese Patent Application No. 6-23100, entitled “Inspection Method and Concentration Meter for Gas Concentration Meter”, the ozone is measured according to Lambert-Beer's law using predetermined light (ultraviolet light). The concentration is calculated. It is practically very difficult to obtain a stable concentration of a gas body which is easy to decompose like ozone and which is unstable, which is a standard for mechanical inspection.

Utilizing the oxidizing power of ozone, it has been widely used in recent years such as sterilization of sewage and sewage and decomposition of odorous components, and food sterilization. In addition, due to ozone for sterilization in a recent swimming pool (pool). Partial generation of thought oxidants has become a problem, and it is currently being reported in the media.

[0004] In recent years, from the viewpoint of environmental hygiene, sterilization, deodorization, cleaning of articles, etc. using ozone gas can be easily carried out by ozone gas, and therefore development research on the use of ozone is actively carried out in each industry. It is in the present condition.

At present, 90% of the oxidant is said to be ozone, and the ozone densitometer is sensitive to the oxidant concentration, and the permissible concentration of ozone is 0.1 ppm.
Although it exceeded 1 ppm and there was actually no ozone leak, an ozone leak alarm was often issued.

[0006]

In view of each of the above reasons, there is no problem if there is a densitometer capable of accurately and simply measuring the ozone densitometer. It is natural that the body cannot be stably obtained, that is, in the ozone gas concentration meter, self-diagnosis cannot be performed and an accurate measuring device cannot exist.

Further, when the ozone concentration is measured at a predetermined site, in addition to the ozone generated by the ozone generator, the oxidant contained in normal air is mixed with the ozone to identify the concentration of the generated ozone. There is a problem such as the inability to do so.

[0008]

[Means for Solving the Problems] In order to solve each of the above problems, the ozone concentration is detected and explored by a novel idea without using a conventional unspecified ozone concentration meter. The simplest and most accurate method of measuring ozone concentration is the method.

[0009]

The ozone amount containing the oxidant existing (contained) in the normal atmosphere in the normal state is measured and digitized to obtain the number (A). Next, an ozone generator (machine) is installed and the amount of ozone containing oxidant contained in the atmosphere of the site (room) where ozone is being generated is measured and digitized to obtain a number (B). The number (A) is subtracted from the obtained number (B), that is, the difference is the amount of ozone leaked from the ozone generator and is accurately detected. In addition, a mechanism having a function of irradiating a predetermined amount of light to the same ozone leak dual detector is incorporated to have dual-system detection performance.

The ozone concentration meter currently used has instability in that the oxidant generated due to unknown cause is also measured as the amount of ozone.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An ozone leak dual detector of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a block diagram showing a configuration according to claim 1 of the present invention. FIG. 2 is a block diagram showing a configuration according to claim 2 of the present invention. The ozone leakage dual detector (1) is provided with a first air supply port (2) on one side of an arbitrary part and a second air supply port (3) is provided on the other side of the arbitrary part, and a first air supply port (2). The normal air (outside) is sucked in and is sent to one side of the three-way solenoid valve (5) through the solenoid valve (4 '), and then to the other side from the zero gas generator (6) to the cell (7). A light source (8) emitted from a power source from the front of the cell (7). The cell (7) passes through a flow meter (9) and is exhausted by an intake pump (10).

Next, the sensor (11) of the flow meter (9) converts the amplified voltage into an amplified voltage by the amplifier (12), digital conversion (13), computer calculation (14), and digitization of the result (A). It Next, the specified atmosphere of the site (room) in which the ozone generator (not shown) that has been sucked in through the second air supply port (3) is installed is the same as the above through the solenoid valve (4). After the passage of, the result is digitized and the result (B) is obtained.

As described above, the result (B) is the ozone content value B in the atmosphere at the site where the ozone generator is installed. By subtracting the ozone content value A of the outside air (normal atmosphere), the difference is ozone. The exact amount of leakage by the generator is displayed (15) and can be detected.

Next, an embodiment of the ozone leak dual detector of the present invention using a predetermined light beam incorporated in the same detector of claim 2 will be described with reference to the attached FIG. The ozone leakage dual detector (1) is provided with a first air intake port (2) on one side of an arbitrary portion and a second air supply port (3) on the other side of the arbitrary portion. The reference ozone gas input from the first air supply port (2) through the one-way solenoid valve (16) to the three-way solenoid valve (19) and passing through the zero gas generator (18) is sucked by the suction pump (32) to the cell (21). ) Filled in. Next, ultraviolet light source (20)
More ultraviolet rays are received by the transmitted light amount sensor (22), amplified by an amplifier (23), converted into a voltage, and converted into a first memory (2).
4) is input.

Next, the three-way solenoid valve (19) is stopped and the one-way solenoid valve (16) is input to suck the oxidant in the atmosphere and fill the cell (21). At that time, the ultraviolet light from the ultraviolet light source (20) is transmitted through the light quantity sensor (22).
The light is received at, amplified by the amplifier (23), converted into a voltage, and input to the second memory (25). Next, while the three-way solenoid valve (19) is stopped, the other solenoid valve (17) becomes an input, the one-way solenoid valve (16) is stopped, and leaked ozone gas fills the cell (21). Subsequently, the ultraviolet light from the ultraviolet light source (20) is received by the transmitted light amount sensor (22), amplified by the amplifier (23), converted into a voltage, and stored in the third storage device (26).
Is input to.

As a result of the above, the calculation results of the third memory device (26) and the second memory device (25) are input to the fourth memory device (28) via the differential amplifier (27). That is, the result is that only the leaked ozone gas that is not an oxidant is absorbed. Next, referring to the output input to the first storage device (24), the fourth storage device (28) and the logarithmic amplifier (2
9), the amplification amplifier (30) is calculated according to Lambert-Beer's law, and the ozone amount irrelevant to the oxidant concentration is displayed on the display (31) to show the leaked ozone gas at the ozone generator installation site. It can be detected.

[0017]

Although there has been a long-awaited demand for the development of an accurate ozone concentration meter, it is a solution to the present invention. In other words, ozone leakage at the installation site of the ozone generator (generator) can be immediately detected, and there is no need to worry that the generated ozone will be confused with the oxidant that normally exists in the atmosphere. The invention is based on a novel idea that can be used.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of claim 1 of the present invention.

FIG. 2 is a block diagram showing the configuration of claim 2 of the present invention.

[Explanation of symbols]

Explanation number in Figure 1 1 ... Dual ozone leak detector of the present invention 2 ... First air supply port 3 ... Second air supply port 4, 4 '... Solenoid valve 5 ... Three-way solenoid valve 6 ... Zero (reference) gas generator 7 ... cell 8 ... Light source (ultraviolet) 9 ... Flowmeter 10 ... Intake pump 11 ... Sensor 12 ... Amplifier 13 ... Digital converter 14 ... Computer 15 ... Display Explanation number in Figure 2 16 ... One-way solenoid valve 17 ... solenoid valve on the other hand 18 ... Zero gas generator 19 ... Three-way solenoid valve 20 ... Light source 21 ... cell 22 ... Transmitted light amount sensor 23 ... Amplifier 24 ... First memory 25 ... Second memory 26 ... Third memory 27 ... Differential amplifier 28 ... Fourth memory 29 ... Logarithmic amplifier 30 ... Amplifying amplifier 31 ... Indicator.

─────────────────────────────────────────────────── ─── Continuation of front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) G01M 3/38 G01M 3/04 G01N 21/33 G01N 31/00

Claims (2)

(57) [Claims] 1. A detector is installed in a dual manner at a first air inlet and a second air inlet, and the first air inlet is usually irradiated with ultraviolet rays to measure the ozone content in the atmosphere. , Digitizing the ozone content of a specific atmosphere at the ozone generator installation site with ultraviolet rays to measure and quantify the second air inlet, and compare and calculate the measured values of both , Ozone leak dual detector. 2. A transmission sensitivity value of light obtained by irradiating a normal air inhaled from the first air supply port with a predetermined amount of ultraviolet rays and a predetermined air inhaled from the second air supply port to a specific atmosphere at the ozone generator installation site. The ozone leakage dual detector according to claim 1, wherein a transmission sensitivity value of light obtained by irradiating a light amount of ultraviolet rays is compared and calculated.