CN110961035A - Chemical reagent resistant experiment system - Google Patents
Chemical reagent resistant experiment system Download PDFInfo
- Publication number
- CN110961035A CN110961035A CN201811142783.1A CN201811142783A CN110961035A CN 110961035 A CN110961035 A CN 110961035A CN 201811142783 A CN201811142783 A CN 201811142783A CN 110961035 A CN110961035 A CN 110961035A
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- autoclave
- test
- chemical reagent
- kettle
- chemical
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J3/00—Processes of utilising sub-atmospheric or super-atmospheric pressure to effect chemical or physical change of matter; Apparatus therefor
- B01J3/04—Pressure vessels, e.g. autoclaves
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0006—Controlling or regulating processes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/24—Stationary reactors without moving elements inside
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J3/00—Processes of utilising sub-atmospheric or super-atmospheric pressure to effect chemical or physical change of matter; Apparatus therefor
- B01J3/002—Component parts of these vessels not mentioned in B01J3/004, B01J3/006, B01J3/02 - B01J3/08; Measures taken in conjunction with the process to be carried out, e.g. safety measures
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
The invention provides a chemical reagent resistant experiment system which comprises an autoclave, a sample placing device, a temperature adjusting device and a pressure adjusting device, wherein the chemical reagent resistant experiment system can improve the timeliness and safety of tests, reduce the test cost, realize the simplicity of operation and particularly have extremely high universality, and can be suitable for most chemical reagent resistant tests, such as a black box deep sea water corrosion resistant test, an air conditioner material refrigerant resistant test, an automobile water chamber material anti-freezing solution test and the like.
Description
Technical Field
The invention belongs to the field of test detection, and particularly relates to a chemical reagent resistance test system.
Background
With the deep application of chemical materials, the chemical materials have different application environment conditions, and in many cases, the application materials are in the environment of high temperature and high pressure or chemical reagents for a long time, for example, a black box is in deep sea water corrosion for a long time, air-conditioning materials are in a refrigerant for a long time, automobile water chamber materials are in frozen liquid for a long time, and the like. For such special environmental conditions, the general material performance test cannot reflect the service life of the material under such special environments, and the material usage for simulating the special environmental conditions needs to be evaluated, however, no professional equipment for chemical reagent aging resistance exists at present, and in order to perform various chemical reagent resistance tests, laboratories usually build various temporary simple facilities for different experimental requirements to complete the tests, and such temporary simple facilities have the following defects: 1. the test facilities are redesigned in each test, and the early preparation time is long, so that the timeliness is poor and the cost is high; 2. the simple facility has large safety risk; 3. the operation is inconvenient; 4. the realization difficulty of tests requiring high pressure, high temperature and strong corrosion is very high.
Disclosure of Invention
The invention aims to provide a chemical reagent aging resistance test simulation method which is simple in operation, has extremely high universality and can be used for material aging resistance tests at different temperatures and pressures, and the specific scheme is as follows:
a chemical reagent resistant experimental system, comprising an autoclave; the sample placing device is used for placing a test sample in the autoclave for the chemical reagent resistance test; the temperature adjusting device is used for adjusting the test temperature of the test sample; a pressure regulating device for regulating a test pressure of the test sample.
Further, the autoclave comprises the cauldron body and kettle cover, the cauldron body is the stainless steel with the kettle cover material, cauldron body inner chamber has polytetrafluoroethylene inner bag or polytetrafluoroethylene coating, it fills up to have the polytetrafluoroethylene to seal between the cauldron body and the kettle cover.
Further, the system also comprises a camera device, and the camera device is used for displaying the test condition in the kettle in real time.
Further, the temperature adjusting device comprises a heating device, a cooling device, a temperature sensor in the kettle and a temperature display device in the kettle.
Further, the pressure adjusting device comprises a pressure gauge, a pressurizing device and a vacuumizing device.
Further, the system also comprises a power device, and the power device is used for controlling the kettle cover to lift, so that the kettle cover is opened or closed.
Furthermore, the sample placing device is composed of a fixing rod and a sample placing basket, the fixing rod is a threaded rod, the sample placing basket can be installed at any required position on the fixing rod through threads, and the fixing rod is screwed on the kettle cover through threads.
Further, the system also comprises a central control device which is used for automatically controlling the temperature adjusting device, the pressure adjusting device and/or the power device.
The chemical reagent resistant experiment system can improve the timeliness and safety of the experiment, reduce the experiment cost, simplify the operation, have extremely high universality, and can be suitable for most chemical reagent resistant experiments, such as a black box deep sea water corrosion resistant experiment, an air conditioner material refrigerant resistant experiment, an automobile water chamber material anti-freezing solution resistant experiment and the like.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present invention.
1. The device comprises a kettle body, a kettle cover, a heating pipe, a lifting lever, a pressure gauge, a gas outlet valve, a gas inlet valve, a temperature sensor, an oil temperature sensor, an overflow valve, an oil outlet valve, a sample placing basket, a fixing rod, a central control device, a cooling device, a vacuumizing device, a camera device and a pressurizing device, wherein the kettle body is 2, the kettle cover is 3, the heating pipe is 4, the lifting lever is 5, the pressure gauge is 6, the gas outlet valve is 7, the gas inlet valve is 8, the temperature sensor in.
Detailed Description
The present invention provides a chemical resistance test system, and the following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings in order to make the above objects, features and advantages of the present invention more comprehensible.
The invention relates to a chemical reagent resistant experiment system, which comprises an autoclave; the sample placing device is used for placing a test sample in the autoclave for the chemical reagent resistance test; the temperature adjusting device is used for adjusting the test temperature of the test sample; a pressure regulating device for regulating a test pressure of the test sample. Referring to fig. 1, the chemical reagent resistant experimental system of the present invention, the autoclave is composed of an autoclave body 1 and an autoclave cover 2, the autoclave body and the autoclave cover are made of stainless steel, because the system of the present invention can resist solvent corrosion, the inner cavity of the autoclave body is preferably provided with a polytetrafluoroethylene inner container or a polytetrafluoroethylene coating, a polytetrafluoroethylene sealing gasket is arranged between the autoclave body and the autoclave cover, for heat transfer, the inner cavity of the autoclave body is preferably provided with the polytetrafluoroethylene coating, and the thickness of the polytetrafluoroethylene coating is preferably 0.1-0.5mm, too thick heat transfer is slow, and too thin is not favorable for preventing solvent corrosion. In order to ensure the safety under the high-pressure test, the high-pressure autoclave is set to bear the pressure of more than 30 MPa.
The chemical reagent resistant experimental system can also preferably comprise a central control device 14 and a camera device 17, wherein the camera device 17 adopts a high-temperature, high-pressure and corrosion resistant camera and is matched with a light source, the camera device 17 is controlled by the central control device 14, and the central control device 14 controls the camera device 17 to transmit real-time pictures in the kettle to an external display device for real-time display or an external storage device for storage, so that the test or the test tracing can be well monitored in real time.
According to the chemical reagent resistant experimental system disclosed by the invention, as shown in fig. 1, the temperature adjusting device comprises a heating device, a cooling device 15, an in-kettle temperature sensor 8 and an in-kettle temperature display device. As shown in fig. 1, the heating device is arranged on the outer surface of the kettle body 1, and can be heated by direct electric heating or oil heating, in the specific embodiment of the invention, oil heating is adopted, the oil surrounding the outer surface of the kettle body 1 is heated by a heating pipe 3, and meanwhile, the heating device further comprises an oil temperature sensor 9 and an oil outlet valve 11, and the oil temperature can be monitored in real time by connecting the oil temperature sensor 9 with an oil temperature display device. And the temperature display device in the kettle is connected with the temperature sensor 8 in the kettle and used for monitoring the working temperature of the test. In some embodiments, the heating voltage of the heating pipe can be manually adjusted according to the monitored temperature in the kettle, so that the temperature in the kettle is at the test working temperature; further, in another embodiment of the present invention, the temperature signal collected by the in-kettle temperature sensor 8 may be synchronously transmitted to the central control device, and the central control device may adjust the voltage of the heating pipe according to the temperature signal to control the in-kettle temperature at the test working temperature. In the embodiment of the present invention, as shown in fig. 1, the cooling device 15 comprises a U-shaped tube disposed in the autoclave cavity, and the cooling is performed by a cooling medium in the U-shaped tube, and the cooling can be manually adjusted or automatically adjusted by a central control device as the heating control.
According to the chemical reagent resistant experimental system disclosed by the invention, as shown in fig. 1, the pressure adjusting device comprises a pressure gauge 5, a pressurizing device 18, a vacuumizing device 16, an air inlet valve 6 and an air outlet valve 7, wherein the pressurizing device 18 is an external high-pressure air source and is used for pressurizing the high-pressure kettle under the control of the air inlet valve 6, and the vacuumizing device 16 is used for reducing the pressure of the high-pressure kettle under the control of the air outlet valve 7. The pressure regulating device can also comprise a pressure sensor for detecting the pressure in the autoclave, the pressure sensor can transmit the acquired pressure data to the central controller, and the central controller can control the air outlet valve or the air inlet valve according to the pressure data to control the pressure in the autoclave to be at the test working pressure.
According to the chemical reagent resistant experimental system, as shown in fig. 1, the system further comprises a power device, the power device is used for controlling the kettle cover to lift so as to open or close the kettle cover, the power device can be manually controlled or controlled by a central control system, the power device is composed of a motor and a lifting rod 4, the lifting rod 4 is connected with the kettle cover 2, and the lifting rod 4 is controlled to move so as to lift the kettle cover 2.
According to the chemical reagent resistant experimental system disclosed by the invention, as shown in fig. 1, the sample placing device is composed of a fixing rod 13 and a sample placing basket 12, the fixing rod 13 is a threaded rod, the sample placing basket 12 can be installed at any required position on the fixing rod through threads, and the fixing rod 13 is screwed on the kettle cover 2 through threads.
The method for testing by using the chemical reagent resistant experimental system comprises the steps of placing a test sample into the sample placing basket 12, adding a chemical reagent to simulate the environmental atmosphere according to the environmental atmosphere, the working temperature and the working pressure of the test sample in the actual working environment, and controlling the corresponding working temperature and the working pressure by the temperature regulating device and the pressure regulating device to carry out an aging test. According to the actual situation, liquid chemical reagent is added into the high-pressure kettle, or gaseous chemical reagent is introduced into the high-pressure kettle, and the temperature sensor 8 in the high-pressure kettle is positioned in the chemical reagent or the chemical reagent atmosphere. The working temperature and working pressure may be generally the same as the temperature and pressure at which the product of the test specimen actually works, but in some embodiments, the working temperature may be increased to accelerate aging, for example, for efficiency, and then converted or used for comparison of aging resistance between different materials.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (8)
1. A chemical-resistant assay system, the system comprising:
an autoclave;
the sample placing device is used for placing a test sample in the autoclave for the chemical reagent resistance test;
the temperature adjusting device is used for adjusting the test temperature of the test sample;
a pressure regulating device for regulating a test pressure of the test sample.
2. The chemical reagent resistant experimental system of claim 1, wherein the autoclave is composed of an autoclave body and an autoclave cover, the autoclave body and the autoclave cover are made of stainless steel, a polytetrafluoroethylene inner container or a polytetrafluoroethylene coating is arranged in an inner cavity of the autoclave body, and a polytetrafluoroethylene sealing gasket is arranged between the autoclave body and the autoclave cover.
3. The chemical reagent resistant experimental system of claim 1, further comprising a camera device for displaying the test condition in the kettle in real time.
4. The chemical-resistant reagent experiment system of claim 1, wherein the temperature adjusting device comprises a heating device, a cooling device, an in-kettle temperature sensor and an in-kettle temperature display device.
5. The chemical-resistant experimental system of claim 1, wherein the pressure regulating device comprises a pressure gauge, a pressurizing device and a vacuum-pumping device.
6. The chemical reagent resistant experimental system of claim 2, further comprising a power device for controlling the kettle cover to be lifted so as to open or close the kettle cover.
7. The chemical-resistant experimental system of claim 1, wherein the sample placing device comprises a fixing rod and a sample placing basket, the fixing rod is a threaded rod, the sample placing basket can be installed on any desired position of the fixing rod through threads, and the fixing rod is screwed on the kettle cover through the threads.
8. The chemical-resistant experimental system of claim 1, further comprising a central control device for automatically controlling the temperature regulating device, the pressure regulating device, and/or the power device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811142783.1A CN110961035A (en) | 2018-09-28 | 2018-09-28 | Chemical reagent resistant experiment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811142783.1A CN110961035A (en) | 2018-09-28 | 2018-09-28 | Chemical reagent resistant experiment system |
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| Publication Number | Publication Date |
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| CN110961035A true CN110961035A (en) | 2020-04-07 |
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| CN201811142783.1A Pending CN110961035A (en) | 2018-09-28 | 2018-09-28 | Chemical reagent resistant experiment system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113834765A (en) * | 2020-06-08 | 2021-12-24 | 中国石油化工股份有限公司 | Device and method for testing corrosion resistance of material |
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2018
- 2018-09-28 CN CN201811142783.1A patent/CN110961035A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113834765A (en) * | 2020-06-08 | 2021-12-24 | 中国石油化工股份有限公司 | Device and method for testing corrosion resistance of material |
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Application publication date: 20200407 |