How Is The Sealing Performance Of A 100ml Hydrothermal Autoclave?
Apr 03, 2025
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The tightness of hydrothermal autoclave 100 ml is one of the important indexes to evaluate its performance,it uses a special sealing design to ensure that no leakage will occur under high pressure and high temperature. The tightness is not only related to the safety and reliability of the experiment, but also directly affects the accuracy and efficiency of the experimental results.In practical application, the user should choose the appropriate model and specification according to the specific experimental requirements, and conduct the experiment in strict accordance with the operating procedures to ensure the safety and reliability of the experiment. At the same time, regular maintenance and maintenance of the equipment is also an important measure to ensure the long-term stable operation of the equipment.
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Product:https://www.achievechem.com/chemical-equipment/hydrothermal-autoclave-100-ml.html
100 ml hydrothermal autoclave, also known as hydrothermal synthesis reactor, high-pressure digestion tank, pressure lysis bomb, etc., is a closed container that can decompose insoluble substances. It uses the high temperature and high pressure environment in the tank to promote the chemical reaction, especially suitable for synthetic reactions and material preparation requiring high temperature and high pressure conditions. Its working principle is that under certain temperature and pressure conditions, the use of high temperature and high pressure aqueous solution as the reaction medium, so that those insoluble or insoluble substances under atmospheric conditions dissolve or react to produce dissolved products. By controlling the temperature difference of the solution, convection is generated to form a supersaturated state, which can precipitate the growth crystal or synthesize the target product.
The importance of tightness
In the experiment of hydrothermal autoclave, the reaction system is in the state of high temperature and high pressure. If the seal is poor, it can cause the following problems:
Leakage risk
Under high temperature and high pressure, substances in the reaction system may leak out through cracks that are not tightly sealed, resulting in experimental failure or safety hazards.
Experimental error
Leakage may lead to changes in the concentration of substances in the reaction system, thus affecting the accuracy of the experimental results.
Environmental pollution
The leakage of toxic and harmful substances may cause pollution to the experimental environment, and even pose a threat to the health of the experimental personnel.
Implementation method of sealing
The sealing of 100 ml hydrothermal autoclave is mainly achieved through the following aspects:
Structure design
The tank body is usually made of high pressure and high temperature resistant materials, such as stainless steel, to ensure that it will not be deformed or cracked under extreme conditions.
The design of the sealing device is the key. Common sealing structures include circular mortise seal, cone phase contact seal and so on. These structures ensure a tight fit between sealing surfaces through precise fit and appropriate fastening force.
Material selection
Sealing materials need to have good high temperature resistance, high pressure resistance, corrosion resistance and other properties. Common sealing materials include polytetrafluoroethylene (PTFE), PPL (polyphenylene sulfide) and so on. These materials are not only resistant to corrosion and wear, but also have good sealing properties.
The interior of the tank body is usually equipped with a corrosion-resistant lining, such as PTFE liner, to protect the tank body from corrosion and enhance sealing.
Fastening method
The way between the cover and the body of the kettle is usually manual screw fastening or wrench mechanical fastening. The tight fit between sealing surfaces is ensured by proper fastening force.
Some advanced models of hydrothermal autoclaves may also be equipped with an automatic locking device to ensure that leaks do not occur under high pressure conditions.
Specific manifestations of sealing
No leakage phenomenon
Under normal conditions of use, the sealing device of the 100 ml hydrothermal autoclave should be able to completely prevent the leakage of substances in the reaction system. This requires a very high precision between the sealing surface, and the sealing material has good elasticity and wear resistance.
High pressure test
The sealing device should be able to withstand the pressure within the design pressure range of the tank body without leakage. This is usually verified by a withstand pressure test. In the test, the tank body is filled with a certain pressure of gas or liquid, and observe whether there is a leakage phenomenon.
High temperature test
The sealing device should be able to maintain stable sealing performance under high temperature conditions. This requires that the sealing material has good high temperature resistance and will not deform or soften at high temperatures leading to leakage.
Factors affecting tightness
Material quality
The quality of sealing material directly affects the sealing performance. If the material is defective or does not meet the requirements, it may lead to poor sealing.
Machining accuracy
The machining precision of sealing surface has great influence on sealing performance. If the processing accuracy is insufficient, it may lead to poor coordination between the sealing surface, resulting in leakage.
Fastening force
The size of the fastening force also has an important effect on the sealing performance. If the fastening force is insufficient, it may cause the fitting between the sealing surface to be not tight; If the fastening force is too large, it may cause deformation or rupture of the sealing material.
Conditions of use
The conditions of use will also have an impact on the sealing performance. For example, long-term use under high temperature and pressure may lead to aging or deformation of sealing materials; The use of corrosive substances may cause corrosion to the sealing material.
Maintenance and upkeep of sealing performance
In order to ensure that the seal of the 100 ml hydrothermal autoclave remains in good condition for a long time, regular maintenance and maintenance are required:
Regular cleaning
After use, the kettle body and sealing device should be cleaned in time to prevent the residue from affecting the sealing performance. When cleaning, use mild cleaning agents and avoid using corrosive substances.
01
Check the sealing surface
Check the wear and deformation of the sealing surface regularly. If the sealing surface is found to be defective or does not meet the requirements, the sealing material should be replaced or repaired in time.
02
Check the fastening force
Periodically check the size of the fastening force is appropriate. If the fastening force is found to be insufficient or too large, it should be adjusted in time.
03
Storage environment
The tank body should be placed in a dry and ventilated environment during storage to avoid moisture or high temperature resulting in aging or deformation of the sealing material.
04
Case study
Taking a brand of 100 ml hydrothermal autoclave as an example, its sealing design is as follows:
Structure design
The kettle body is made of high-quality stainless steel material, with good resistance to high pressure and high temperature.
The sealing device is designed with a circular mortise and groove seal and is sealed by manual screw fastening. The sealing surface is matched with high precision, and the sealing material has good elasticity and wear resistance.
Material selection
The sealing material is made of polytetrafluoroethylene (PTFE), which has good high temperature resistance, high pressure resistance and corrosion resistance.
The interior of the tank is equipped with PTFE liner to protect the tank from corrosion and enhance sealing.
Performance test
This type of hydrothermal autoclave has passed the strict pressure test and high temperature test. In the test, the tank body can fully withstand the pressure within the design pressure range without leakage; It can also maintain stable sealing performance under high temperature conditions.
Sum up
The sealing of 100 ml hydrothermal autoclave is one of the important indicators of its performance. Good sealing performance can be achieved through reasonable structural design, high-quality material selection and appropriate fastening method. In order to ensure that the sealing is maintained in good condition for a long time, regular maintenance and maintenance are required. In practical application, the user should choose the appropriate model and specification according to the specific experimental requirements, and conduct the experiment in strict accordance with the operating procedures to ensure the safety and reliability of the experiment.
Extended reading
In addition to sealing, the performance of 100 ml hydrothermal autoclave also involves many aspects such as safety, corrosion resistance, and ease of operation. Here is a brief overview of these aspects:
Hydrothermal autoclaves are designed with safety in mind. For example, safety valves are provided to prevent overpressure; Use explosion-proof film and other safety devices to prevent the occurrence of dangerous situations such as explosions.
The interior of the kettle body is usually equipped with a corrosion resistant lining, such as PTFE lining, to protect the kettle body from corrosion and extend the service life.
Modern hydrothermal autoclaves are usually equipped with intelligent temperature control system and pressure display system, which is convenient for users to monitor and adjust the experimental conditions in real time. At the same time, the design of the kettle body also pays attention to the convenience of operation, such as easy cleaning, easy loading and unloading.