CN102135494A - A test method and device for ozone resistance - Google Patents

Abstract

The invention provides a method and a device for testing ozone resistance, which are used for industrial testing methods and devices; starting a power supply to start testing, and setting a test value; the blower and the ozone supply device convey gas into the test box; fourthly, the temperature and humidity sensor works; the PLC controller processes the feedback value of the temperature and humidity sensor; sixthly, operating an ozone analyzer; seventhly, conveying the gas after the analysis to an ozone-resistant test box; processing the feedback value of the ozone analyzer by the PLC controller; ninthly, reaching the preset time value, and ending the test. The utility model provides a testing arrangement of ozone resistance performance, includes an ozone resistant test box, ozone resistant test box outer joint has air-blower, ozone feeding device, the controlling means of humiture and the monitoring device of ozone concentration. The test method can improve the test accuracy.

Description

A test method and device for ozone resistance

technical field

The invention relates to an industrial testing method and device, in particular to an ozone resistance testing method and a device thereof.

Background technique

The ozone resistance testing machine provides an environment that can control and adjust the ozone concentration and temperature to measure the ozone resistance performance of the test piece. As the name implies, the ozone resistance testing machine must first simulate an ozone-filled environment, and then put the specimen into the required test. During the test, with the extension of the test time, the ozone concentration in the ozone resistance testing machine test box will change. The index of anti-ozone performance tested under different ozone concentration environments will also be different, which leads to inaccurate test results. Therefore, how to keep the ozone concentration in the test box of the ozone resistance testing machine stable and consistent during the test is an important part of ensuring the accuracy of the ozone resistance results.

Contents of the invention

The object of the present invention is to overcome the shortcomings of the above-mentioned prior art, and provide a test method and device thereof with high test accuracy for ozone resistance.

For reaching above-mentioned purpose, the present invention adopts following technical scheme:

A test method of ozone resistance, said test method is as follows:

①. First place the test piece: open the pull-out door of the ozone resistance test box, put the test piece on the test piece test bench in the ozone test box, and close the pull-out door;

②. Turn on the power to start the test, and input the preset parameters of the test time, the ozone concentration of the test environment and the temperature and humidity of the test environment into the PLC controller, after the values are set;

③The blower starts to deliver circulating air to the ozone resistance test box, and the PLC controller starts the ozone supply device to deliver ozone to the ozone resistance test box. When the delivered ozone reaches the preset value of ozone, the PLC controller controls the ozone supply device to stop working.

④. The temperature and humidity sensor feeds back the sensed temperature and humidity data in the ozone resistance test box to the PLC controller through the sensor rod;

⑤. The PLC controller compares the received temperature and humidity value with the preset value of temperature and humidity. If the received temperature value is higher than the preset value of temperature, the PLC controller controls to start the refrigerator to cool down the ozone resistance test box , when the temperature value of the ozone resistance test box drops to the temperature preset value, the PLC controller controls the refrigerator to stop working; if the received temperature value is lower than the temperature preset value, the PLC controller controls to start the heater for the ozone test The temperature in the box rises, when the temperature value of the ozone resistance test box rises to the temperature preset value, the PLC controller controls the heater to stop working; if the received humidity value is lower than the temperature preset value, the PLC controller controls to start the humidifier (5) Humidify the ozone resistance test box. When the humidity value of the ozone resistance test box reaches the humidity preset value, the PLC controller controls the humidifier to stop working;

⑥. The sample gas in the ozone resistance test chamber enters the dehumidifier through the air pipe under the action of the air pump. The input volume of the sample gas is pre-adjusted through the flow regulating valve. Then the water is discharged into the water tank through the gas-liquid separator, and the gas is sent to the ozone particle filter. After the gas is filtered by the ozone particle filter, the gas is sent to the ozone analyzer through the trachea. analysis, and then the ozone analyzer feeds back the analysis value to the PLC controller;

⑦. The ozone analyzer purifies the analyzed gas through the ozone reduction device. After the treatment, the ozone-free gas enters the air pump through the flow regulating valve, and the air pump transports the gas to the ozone resistance test box through the air pipe;

⑧. The PLC controller compares the analysis value with the preset value of the ozone concentration. If the analysis value of the ozone concentration is smaller than the preset value, the PLC controller controls to start the ozone supply device to deliver ozone to the ozone resistance test box until the ozone concentration When the analysis value reaches the preset value, the ozone supply device stops working, and a gas supply cycle is completed at this time.

⑨. During the test, the change of the test piece in the ozone resistance test box can be seen through the observation window. When the test time reaches the preset time value, the PLC controller stops working, turns off the power, and the test ends.

A test device for ozone resistance, comprising an ozone resistance test box, connected outside the ozone resistance test box is a blower, an ozone supply device, a temperature and humidity control device and an ozone concentration monitoring device, the ozone supply device, temperature and humidity The control device and the monitoring device of ozone concentration are electrically connected to the PLC controller, and the blower and the PLC controller are connected to the power supply.

Further: the temperature and humidity control device includes a sensing rod, one end of the sensing rod extends into the ozone resistance test box, and the end of the sensing rod exposed outside the ozone test box is connected to the temperature and humidity sensor, and the signal of the temperature and humidity sensor is connected to the PLC control The device feeds the signal back to the PLC controller, and the PLC controller is electrically connected to the heater, humidifier and refrigerator. The heater is set in the interlayer of the side wall of the ozone resistance test box, the humidifier air pipe is connected to the ozone resistance test chamber, and the air pipe of the refrigerator Connect to the ozone resistance test box.

Further: the monitoring device of the ozone concentration includes a dehumidifier, one end of the dehumidifier is connected to the ozone resistance test box with a gas pipe, the other end of the dehumidifier is connected to the gas-liquid separator, the gas-liquid separator is connected to the water tank with a water pipe, and connected to the gas-liquid separator with a gas pipe. Ozone particle filter, the ozone analyzer is built with an ozone analysis device, an ozone reduction device, a flow regulating valve and an air pump connected in sequence. The ozone particle filter extends into the ozone analyzer through the trachea to connect to the ozone analysis device, and the air pump extends out of the ozone through the trachea. The analyzer is connected to the ozone resistance test box; one connection port of the ozone analyzer is electrically connected to the PLC controller, and the analysis information is fed back to the PLC controller, and the PLC controller is electrically connected to the ozone supply device.

The advantages of the present invention: the test method can monitor the temperature and humidity, ozone concentration and other test environment parameters in the whole process of the test, and can carry out timely monitoring and supplementation to ensure that the values of the test environment in the test box are consistent during the test process , to improve test accuracy.

Description of drawings

Fig. 1 is a test method flow chart of the present invention;

Fig. 2 is a test device figure of the present invention;

FIG. 3 is a schematic diagram of the built-in structure of the ozone analyzer 11 .

Detailed ways

In order to further understand the features, technical means, and specific objectives and functions achieved by the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

As shown in Figure 1: a kind of test method of ozone resistance performance, described test method is as follows:

①. First place the test piece: open the pull-out door of the ozone resistance test box 1, put the test piece into the test piece test bench in the ozone test box 1, and close the pull-out door;

2. Start the power supply to start the test, and input the preset parameters of the test time, the ozone concentration of the test environment and the temperature and humidity of the test environment to the PLC controller 3;

③ The blower 15 starts to deliver circulating air to the ozone resistance test box 1, and the PLC controller 3 starts the ozone supply device 16 to deliver ozone to the ozone resistance test box 1. When the delivered ozone reaches the ozone preset value, the PLC controller 3 controls the ozone supply Device 16 stops working.

4. The temperature and humidity sensor 2 feeds back the temperature and humidity data sensed in the ozone resistance test box 1 to the PLC controller 3 through the induction rod 21;

⑤, PLC controller 3 compares the received temperature and humidity value with the preset value of temperature and humidity, if the received temperature value is higher than the preset value of temperature, PLC controller 3 controls to start the refrigerator 6 to give an ozone resistance test Cool down in the box 1, when the temperature value of the ozone resistance test box 1 drops to the temperature preset value, the PLC controller 3 controls the refrigerator 6 to stop working; if the received temperature value is lower than the temperature preset value, the PLC controller 3. Control and start the heater 4 to heat up the ozone test box 1. When the temperature value of the ozone resistance test box 1 rises to the temperature preset value, the PLC controller 3 controls the heater 4 to stop working; if the received humidity value is lower than The preset value of temperature, the PLC controller 3 controls to start the humidifier 5 to humidify the inside of the ozone resistance test box 1, when the humidity value of the ozone resistance test box 1 reaches the humidity preset value, the PLC controller 3 controls the humidifier 5 to stop working ;

⑥. The sample gas in the ozone resistance test chamber 1 enters the dehumidifier 7 through the air pipe under the action of the air pump 14, the input volume of the sample gas is pre-adjusted by the flow regulating valve 13, and the sample gas is cooled by the heat dissipation of the dehumidifier 7 One part forms water, the other part is gas, and then the water is discharged into the water tank 9 through the gas-liquid separator 8, and the gas is sent to the ozone particle filter 10, and the ozone particle filter 10 filters the gas and then sends the gas to the ozone through the air pipe In the analyzer 11, the analysis is carried out by the ozone analyzer 11, and then the ozone analyzer 11 feeds back the analysis value to the PLC controller 3;

⑦. The ozone analyzer 11 purifies the analyzed gas through the ozone reduction device 12. After the treatment, the ozone-free gas enters the air pump 14 through the flow regulating valve 13, and the air pump 14 transports the gas to the ozone resistance test box 1 through the air pipe. Inside;

8. PLC controller 3 compares the analysis value with the ozone concentration preset value, if the analysis value of the ozone concentration is smaller than the preset value, the PLC controller 3 controls and starts the ozone supply device 16 to deliver in the ozone resistance test box 1 When the analysis value of the ozone concentration reaches the preset value, the ozone supply device 16 stops working, and a gas supply cycle is completed at this moment.

⑨. During the test, the change of the test piece in the ozone resistance test box 1 can be seen through the observation window. When the test time reaches the preset time value, the PLC controller 3 stops working, turns off the power, and the test ends.

As shown in Fig. 2 to Fig. 3: a kind of test device of ozone resistance performance comprises an ozone resistance test box 1, and described ozone resistance test box 1 is externally connected with blower 15, ozone supply device 16, the control device of temperature and humidity and The monitoring device of ozone concentration, the monitoring device of ozone supply device 16, the control device of temperature and humidity and the monitoring device of ozone concentration are all electrically controlled with PLC controller 3, and blower 15, PLC controller 3 are connected with power supply.

The control device of described temperature and humidity comprises induction stick 21, and one end of induction stick 21 stretches in the ozone resistance test box 1, and one end of induction stick 21 exposed outside the ozone test box 1 is connected with temperature and humidity sensor 2, temperature and humidity sensor 2 The signal is connected to the PLC controller 3, and the signal is fed back to the PLC controller 3. The PLC controller 3 is electrically connected to the heater 4, the humidifier 5 and the refrigerator 6. The heater 4 is set in the interlayer of the side wall of the ozone resistance test box 1. Humidifier 5 air pipe is connected to ozone resistance test box 1, and refrigerator 6 air pipe is connected to ozone resistance test box 1.

The monitoring device of described ozone concentration comprises a dehumidifier 7, and dehumidifier 7 one end trachea connects ozone resistance test box 1, and dehumidifier 7 other end trachea connects gas-liquid separator 8, and gas-liquid separator 8 connects water tank 9 with a water pipe, Connect the ozone particle filter 10 with a trachea, the ozone analyzer 11 is built with an ozone analysis device 111, an ozone reduction device 12, a flow regulating valve 13 and an air pump 14 connected in sequence, and the ozone particle filter 10 extends into the ozone analyzer 11 through the trachea The ozone analysis device 111 is internally connected, and the air pump 14 extends out of the ozone analyzer 11 through the trachea to connect to the ozone resistance test box 1; the ozone analyzer 11 is electrically connected to the PLC controller 3 through a connection port, and the analysis information is fed back to the PLC controller 3, and the PLC The controller 3 is electronically connected to the ozone supply device 16 .

The above description is a preferred embodiment of the present invention and is not intended to limit the scope of the present invention. All changes and modifications made according to the present invention shall fall within the protection scope of the present invention.

To sum up, the present invention has been made into actual samples according to the contents of the patent specification and illustrations, and has been tested for many times, which proves that it can achieve its expected purpose and effect, and its practical value is beyond doubt. No identical or similar products were found in the market and publications.

The above-mentioned embodiments are only used to illustrate the present invention for convenience, and are not intended to limit the present invention in any form. Anyone with ordinary knowledge in the technical field can use this The equivalent embodiments of partial changes or modifications made in the technical content disclosed in the invention, and without departing from the technical features of the present invention, still belong to the scope of the technical features of the present invention.

Claims (4)

1. the method for testing of an ozone resistance, it is characterized in that: described method of testing is as follows:

1., at first place test block: open pulling the door open of the test box of anti-ozone (1), test block is put on the test specimen test board of ozone test box (1), shut and pull the door open;

2., start power supply and begin test, the parameter preset of the humiture of the ozone concentration of test duration, test environment and test environment is input to PLC controller (3), numerical value after setting completed;

3. fan blower (15) begins delivery cycle wind in the test box of anti-ozone (1), PLC controller (3) starts ozone supply device (16) and gives the interior delivery of ozone of the test box of anti-ozone (1), when delivery of ozone reached the ozone preset value, PLC controller (3) control ozone supply device (16) quit work.

4., the interior humiture data of the test box of anti-ozone (1) that will sense by inductive rod (21) of warm and humid inductor (2) feed back to PLC controller (3);

5., PLC controller (3) compares the preset value of the humiture value that receives with humiture, if the temperature value that receives is higher than the preset value of temperature, PLC controller (3) control starts refrigerator (6) and gives cooling in the test box of anti-ozone (1), when the temperature value of the test box of anti-ozone (1) dropped to the temperature preset value, PLC controller (3) control refrigerator (6) quit work; If the temperature value that receives is lower than the preset value of temperature, PLC controller (3) control starts well heater (4) and gives intensification in the ozone test box (1), when the temperature value of the test box of anti-ozone (1) was raised to the temperature preset value, PLC controller (3) control heater (4) quit work; If the humidity value that receives is lower than the preset value of temperature, PLC controller (3) control starts humidifier (5) and gives the interior humidification of the test box of anti-ozone (1), when the humidity value of the test box of anti-ozone (1) reached the humidity preset value, PLC controller (3) control humidifier (5) quit work;

6., sample gas in the test box of anti-ozone (1) is under the effect of air pump (14), enter in the dehumidifier (7) by tracheae, the input quantity of sample gas is regulated in advance by flow control valve (13), sample gas forms water by the heat radiation cooling back part of dehumidifier (7), a part is a gas, by gas-liquid separator (8) water is discharged to water tank (9) lining then, deliver gas in the ozone particulate filter (10), ozone particulate filter (10) will deliver gas in the ozone analyzer (11) by tracheae after the gas filtration, analyzed by ozone analyzer (11), ozone analyzer (11) feeds back to PLC controller (3) to assay value then;

7., the gas after ozone analyzer (11) finishes analysis carries out purified treatment through ozone reduction device (12), handle back ozone free gas and enter into air pump (14) lining by flow control valve (13), air pump (14) delivers gas in the test box of anti-ozone (1) by tracheae;

8., PLC controller (3) comparing assay value and ozone concentration preset value, if the assay value of ozone concentration is littler than preset value, PLC controller (3) control starts ozone supply device (16) and gives the interior delivery of ozone of the test box of anti-ozone (1), when the assay value of ozone concentration arrives preset value, ozone supply device (16) quits work, and finishes a Ge air feed circulation this moment.

9., can see the variation of the test block in the test box of anti-ozone (1) in the test process by view window, when the test duration reached the Preset Time value, PLC controller (3) quit work, and turns off power supply, end of test (EOT).

2. the proving installation of an ozone resistance, include a test box of anti-ozone (1), it is characterized in that: the described test box of anti-ozone (1) is externally connected with fan blower (15), ozone supply device (16), the control device of humiture and the supervising device of ozone concentration, the control device of ozone supply device (16), humiture and the supervising device of ozone concentration all electricly connect with PLC controller (3), and fan blower (15), PLC controller (3) connect power supply.

3. the proving installation of a kind of ozone resistance according to claim 2, it is characterized in that: the control device of described humiture includes inductive rod (21), inductive rod (21) one ends stretch in the test box of anti-ozone (1), inductive rod (21) is exposed at the outer end of ozone test box (1) and connects warm and humid inductor (2), warm and humid inductor (2) signal connects PLC controller (3), give PLC controller (3) with signal feedback, PLC controller (3) electricly connects well heater (4), humidifier (5) and refrigerator (6), well heater (4) is arranged in the test box of anti-ozone (1) the sidewall interlayer, humidifier (5) tracheae connects the test box of anti-ozone (1), and refrigerator (6) tracheae connects the test box of anti-ozone (1).

4. the proving installation of a kind of ozone resistance according to claim 2, it is characterized in that: the supervising device of described ozone concentration includes a dehumidifier (7), dehumidifier (7) one end tracheaes connect the test box of anti-ozone (1), dehumidifier (7) other end tracheae connects gas-liquid separator (8), gas-liquid separator (8) connects water tank (9) with a water pipe, connect ozone particulate filter (10) with a tracheae, ozone analyzer (11) is built-in with the ozone analytical equipment (111) that connects successively, ozone reduction device (12), flow control valve (13) and air pump (14), ozone particulate filter (10) stretches into by tracheae and connects ozone analytical equipment (111) in the ozone analyzer (11), and air pump (14) stretches out ozone analyzer (11) by tracheae and connects the test box of anti-ozone (1); Ozone analyzer (11) one connectors electricly connect PLC controller (3), and analytical information is fed back to PLC controller (3), and PLC controller (3) electricly connects ozone supply device (16).

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