CN102607903B - Non-metal material escaping gas product test bed - Google Patents

Abstract

The invention belongs to a material test device, and relates to a non-metal material test device, which has the technical scheme that: a non-metal material escaping gas product test bed comprises a gas circuit system, a contact screen (3), a computer software system (4), a main control panel (1), a sub-control panel (2), a pressure collection and valve control plate (5), a temperature collection and control plate (6), a plurality of pressure sensors (7), a plurality of temperature sensors (8) and an experimental table panel. Due to the utilization of the non-metal material escaping gas product test bed, the same or different temperature, pressure and time control can be simultaneously carried out on one or a plurality of non-metal material samples in each vacuum tank, escaping gas products of the samples can be obtained respectively, a gas chromatograph and other instruments are connected to research and analyze types and quantities of toxic and harmful gases, and the test duration can be lasted for more than one month.

Description

Test bench for gas products evolved from non-metallic materials

technical field

The invention belongs to a material testing device, in particular to a non-metallic material testing device.

Background technique

Fujian Electric Power and Electrician Magazine, No. 1, 2006, published the article "Experimental Research on Insulating Oil Automatic Degassing Sampling Device", in which the insulating oil automatic degassing sampling device described in the degassing test for oil, Only a single escaped gas product can be obtained, only temperature control but no pressure control, and the temperature and pressure changes of the degassed material cannot be continuously recorded, and the test time is several minutes.

Contents of the invention

The purpose of the present invention is to provide a device for simultaneously obtaining multiple escaped gas products of a non-metallic material or simultaneously degassing multiple non-metallic materials by synchronously controlling temperature and pressure separately.

The technical scheme of the present invention is: a test bench for gas products escaping from non-metallic materials, which includes: gas circuit system, touch screen, computer software system, main control board, auxiliary control board, pressure acquisition and valve control board, temperature acquisition and Control board, multiple pressure sensors, multiple temperature sensors, test bench panel;

The gas circuit system includes: a plurality of vacuum tanks for placing samples and sample holders, the front end of the vacuum tanks is a front cover and a sealing ring, the front cover is arranged on the test bench panel to form a sample observation window, the The rear end of the vacuum tank is connected to the temperature sensor, the gas sampling valve, and the pressure sensor, the side end is connected to the exhaust valve, and the periphery is a heating device; the exhaust valve is connected to the exhaust valve of each vacuum tank a vacuum pump; an air source connected to the exhaust valve of each of the vacuum tanks through an inflation valve;

The pressure collection and valve control board collects the pressure values inside the vacuum tanks through the pressure sensor, collects the working status of the valves and the vacuum pumps, and uploads them to the sub-control board, and receives the sub-control board. The pressure preset value sent by the control board and the action instructions for the valves and the vacuum pump, and accordingly control the switches of the valves and the vacuum pump;

The temperature acquisition and control board collects the internal temperature of each vacuum tank through the temperature sensor and uploads it to the main control board, receives the temperature preset value sent by the main control board, and uses the heating device to control the internal temperature of each vacuum tank. Implement temperature control for each of the above-mentioned vacuum tanks;

The touch screen is set on the panel of the test bench, and it sends the temperature preset value, the pressure preset value and the valve action commands input by the user to the main control board, receives and displays the The real-time temperature value and real-time pressure value of each vacuum tank, the working status and working time of each valve forwarded by the main control board;

The computer software system receives the data from the main control board, calculates the internal temperature-time curve and pressure-time curve of each vacuum tank, controls the storage and display of various data, and sets the various data set by the system. The temperature preset value and the pressure preset value of the vacuum tank are sent to the main control board, and the user's instructions for opening data files, saving data files and communication settings are executed, and sent to the main control board;

The main control board receives the data and instructions transmitted by the user through the computer software system or/and the touch screen, sends the temperature preset value to the temperature acquisition and control board, and sends the pressure preset value and the The air extraction valve action command is sent to the sub-control board, the real-time temperature from the temperature acquisition and control board is forwarded to the touch screen and the computer software system, and the real-time pressure from the sub-control board The value and the working status of each valve and the vacuum pump are forwarded to the touch screen and the computer software system;

The secondary control board completes two-way data and instruction transmission between the main control board and the pressure acquisition and valve control board.

Utilizing the present invention, the same or different temperature, pressure and time control can be carried out on one or more non-metallic material samples in each vacuum tank at the same time, and their escaped gas products can be obtained respectively, and connected to gas chromatograph and other instruments to study and analyze them The type and quantity of toxic and harmful gases, the test duration can be as long as more than 1 month.

Description of drawings

Fig. 1 is a block diagram of the present invention;

Fig. 2 is a schematic structural diagram of the gas circuit system in the present invention.

Detailed ways

Embodiment 1: Referring to accompanying drawings 1 and 2, a test bench for gas products escaping from non-metallic materials includes: gas circuit system, touch screen 3, computer software system 4, main control board 1, auxiliary control board 2, pressure acquisition And valve control board 5, temperature acquisition and control board 6, multiple pressure sensors 7, multiple temperature sensors 8, test bench panel;

The gas circuit system includes: a plurality of vacuum tanks 12 for placing samples and sample holders, the front end of the vacuum tanks 12 is a front cover and a sealing ring, and the front cover is arranged on the test bench panel to form a sample observation window, The rear end of the vacuum tank is connected to the temperature sensor 8, the gas sampling valve 13, the pressure sensor 7, the side end is connected to the exhaust valve 11, and the periphery is a heating device 12; through the exhaust valve 10 and each of the vacuum tanks The vacuum pump 9 that is connected to the described exhaust valve 11 of the vacuum tank; the gas source 14 that is connected with the described exhaust valve 11 of each described vacuum tank through the inflation valve 13;

The pressure collection and valve control board 5 collects the pressure values inside the vacuum tanks 12 through the pressure sensor 7, collects the working states of the valves and the vacuum pump 9, and uploads them to the secondary control board 2 , receiving the pressure preset value sent by the sub-control board 2 and the action instructions for the valves and the vacuum pump 9, and controlling the switches of the valves and the vacuum pump 9 accordingly;

The temperature acquisition and control board 6 collects the internal temperature of each vacuum tank 12 through the temperature sensor 8 and uploads it to the main control board 1, receives the temperature preset value sent by the main control board 1 and passes the The heating device 12 implements temperature control to each of the vacuum tanks 12;

The touch screen 3 is arranged on the panel of the test bench, and it sends the temperature preset value, the pressure preset value and the valve action commands input by the user to the main control board 1, receives and displays The real-time temperature value, real-time pressure value, working state and working time of each of the vacuum tanks forwarded by the main control board 1;

The computer software system 4 receives the data transmitted from the main control board 1, calculates the temperature-time curve and pressure-time curve inside each vacuum tank, controls the storage and display of various data, and sets the The temperature preset value and the pressure preset value of each vacuum tank are sent to the main control board 1, and the user's instructions for opening data files, saving data files and communication settings are executed, and sent to the main control board 1. control board 1;

The main control board 1 receives data and instructions transmitted by the user through the computer software system 4 or/and the touch screen 3, sends the temperature preset value to the temperature acquisition and control board 6, and presets the pressure The setting value and the action command of the air extraction valve 11 are sent to the sub-control board 2, and the temperature acquisition and the real-time temperature from the control board 6 are forwarded to the touch screen 3 and the computer software system 4, and the The real-time pressure value transmitted from the auxiliary control board 2 and the working status of the valves and the vacuum pump 9 are forwarded to the touch screen 3 and the computer software system 4;

The sub-control board 2 completes two-way data and instruction transmission between the main control board 1 and the pressure acquisition and valve control board 5 .

Embodiment 2: non-metallic material escape gas product test bench as described in embodiment 1, wherein: the quantity of described vacuum tank 12 is 10, and the material that described vacuum tank 12 and described sample support are used is 1Cr18Ni9Ti , the vacuum pump 9 is a dry oil-free vacuum pump, the temperature sensor 8 adopts PT100 armored platinum resistance, the pressure sensor 7 adopts the stainless steel isolation pressure sensor 19C015PA1 of Honeywell Company, and the gas source 14 is high-purity nitrogen or clean air , the acquisition interval of real-time temperature and real-time pressure values is 10 seconds.

Claims (2)

1. A test bench for gas products escaping from non-metallic materials, comprising: a gas circuit system, a computer software system (4), a plurality of pressure sensors (7), characterized in that it also includes: a touch screen (3), a main control board (1), auxiliary control panel (2), pressure acquisition and valve control panel (5), temperature acquisition and control panel (6), multiple temperature sensors (8), test bench panel; The gas circuit system includes: a plurality of vacuum tanks (12) for placing samples and sample holders, the front end of the vacuum tanks (12) is a front cover and a sealing ring, and the front cover is arranged on the test bench panel to form a Sample observation window, the rear end of the vacuum tank is connected to the temperature sensor (8), the gas sampling valve (13), the pressure sensor (7), the side end is connected to the exhaust valve (11), and the periphery is a heating device (12 ); the vacuum pump (9) that is connected with the described air extraction valve (11) of each described vacuum tank by exhaust valve (10); The air source (14) connected to the valve (11); The pressure collection and valve control board (5) collects the pressure value inside each vacuum tank (12) through the pressure sensor (7), collects the working status of each valve and the vacuum pump (9), and Upload to the sub-control board (2), receive the pressure preset value sent by the sub-control board (2) and the action instructions for the valves and the vacuum pump (9), and control the various vacuum pumps (9) accordingly. valve and the switch of the vacuum pump (9); The temperature acquisition and control board (6) collects the internal temperature of each vacuum tank (12) through the temperature sensor (8) and uploads to the main control board (1), receives the main control board (1) ) send the temperature preset value and implement temperature control to each of the vacuum tanks (12) by the heating device (12); The touch screen (3) is set on the panel of the test bench, and it sends the temperature preset value, the pressure preset value and the valve action commands input by the user to the main control board (1) , receiving and displaying the real-time temperature value, real-time pressure value, working status and working time of each of the vacuum tanks forwarded by the main control board (1); The computer software system (4) receives the data from the main control board (1), calculates the temperature-time curve and pressure-time curve inside each vacuum tank, controls the storage and display of various data, and The temperature preset value and the pressure preset value of the vacuum tanks set by the system are sent to the main control board (1), and the user's instructions for opening data files, saving data files and communication settings are executed, and Issue to the main control board (1); The main control board (1) receives data and instructions transmitted by the user through the computer software system (4) or/and the touch screen (3), and sends the temperature preset value to the temperature acquisition and control board ( 6), sending the pressure preset value and the action command of the exhaust valve (11) to the sub-control board (2), and forwarding the temperature acquisition and the real-time temperature from the control board (6) to the The touch screen (3) and the computer software system (4) forward the real-time pressure value from the sub-control board (2) and the working status of the valves and the vacuum pump (9) to the touch screen (3) and said computer software system (4); The sub-control board (2) completes two-way data and instruction transmission between the main control board (1) and the pressure acquisition and valve control board (5). 2. The non-metallic material escaping gas product test bench according to claim 1 is characterized in that: the quantity of the vacuum tank (12) is 10, and the vacuum tank (12) and the sample holder are used The material is 1Cr18Ni9Ti, the vacuum pump (9) is a dry oil-free vacuum pump, the temperature sensor (8) adopts PT100 armored platinum resistance, and the pressure sensor (7) adopts the stainless steel isolation pressure sensor 19C015PA1 of Honeywell Company, so The gas source (14) is high-purity nitrogen or clean air, and the collection interval of real-time temperature and real-time pressure values is 10 seconds.

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