RU205801U1 - Laboratory ampoule autoclave - Google Patents

Abstract

The utility model refers to equipment for carrying out physicochemical processes at elevated temperatures in laboratory conditions and is intended primarily for research using aggressive media. inserted into another cylinder with a uniform air gap between the side walls and the lower bases of the cylinders, the outer surface of the outer casing of the autoclave is covered with asbestos insulation, a connecting tube is installed in the middle of the lower bases, through which a vertical shaft passes in a sliding bearing with a collar, at the top of the shaft end are fixed mixing blades, at the bottom of it is attached a pulley for a belt drive with an electric motor with the possibility of mixing the coolant in the form of glycerin, placed in the inner cylinder of the autoclave. On the outer side of the inner cylinder of the housing, a spiral electric heating cable in the form of a heating element is installed at the level of the mixing blades, the outer surface of which is covered with asbestos insulation with the possibility of transferring heat to the coolant through the wall of the inner cylinder of the housing. Inside the vessel of the autoclave, a metal support is installed with holes evenly spaced over the area, repeating the shape of the thrust part of the ampoule reactor vessels. The technical result of the device is to increase the reliability of laboratory physicochemical research processes. 1 ill.

Description

Technology area

The utility model refers to equipment for carrying out physicochemical processes at elevated temperatures in laboratory conditions and is intended primarily for research using aggressive media.

State of the art

Known device is a universal reactor for operation at high temperatures and pressures NPO "Autoclaves" (http://autoclaves.ru/), including a reactor vessel, a temperature control system, a system for setting and maintaining pressure with a compressed gas supply line from the cylinder. Creation of high pressure up to 200 atm in the reactor vessel. using a gas mixture from high-pressure cylinders causes an increased danger of operating this equipment and the need for additional protective measures.

The closest in terms of the set of essential features to the claimed device is a laboratory autoclave (patent RU 130878, IPC B01J 3/04, published: 08/10/2013 Bull. No. 22), including a reactor vessel equipped with a temperature control system and a system for setting and maintaining pressure with a supply line compressed gas, and the system for setting and maintaining the pressure is additionally equipped with a liquid pump, which is connected to the reactor vessel via a pressure line and a check valve.

The disadvantage of the closest device is the insufficiently reliable performance of laboratory physicochemical research processes.

Disclosure of a utility model

The technical result of the device is to improve the reliable performance of laboratory physical and chemical research processes.

The specified technical result is achieved in the device laboratory ampoule autoclave, including a reactor vessel with a lid, equipped with a thermostatting system, and the autoclave is performed by a vertical cylindrical container inserted into another cylinder with a uniform air gap between the side walls and the lower bases of the cylinders, the outer surface of the outer casing of the autoclave is covered with asbestos insulation, a connecting tube is installed in the middle of the lower bases, through which a vertical shaft passes in a sliding bearing with a collar, mixing blades are fixed at the top of the shaft end, a pulley for a belt drive with an electric motor is attached below it, with the possibility of mixing the coolant in the form of glycerin placed in the inner the autoclave cylinder, from the outer side of the inner cylinder of the body, a spiral electric heating cable in the form of a heating element is installed at the level of the mixing blades, the outer surface of which is covered and with asbestos insulation, with the possibility of transferring heat to the coolant through the wall of the inner cylinder of the housing, a metal support is installed inside the container of the autoclave housing with holes evenly spaced over the area, repeating the shape of the thrust part of the ampoule reactor vessels.

The hallmarks are

the autoclave is performed with a vertical cylindrical container inserted into another cylinder with a uniform air gap between the side walls and the lower bases of the cylinders, the outer surface of the outer body of the autoclave is covered with asbestos insulation, this increases the reliability of laboratory physicochemical research processes due to a uniform air gap between the side walls and the lower bases of the cylinders, providing a constant gradient of heat loss, and covering the outer surface of the outer casing of the autoclave with asbestos insulation;

a connecting tube is installed in the middle of the lower bases of the cylinders, through which a vertical shaft passes in a sliding bearing with a collar, stirring blades are fixed at the top of the shaft end, a pulley for a belt drive with an electric motor is attached below it, with the possibility of stirring the coolant in the form of glycerin, placed in the inner cylinder autoclave, which leads to an increase in the reliable performance of laboratory physicochemical research processes due to constant mixing of the coolant and high-quality heat transfer to reactor vessels;

from the outer side of the inner cylinder of the body, a spiral electric heating cable in the form of a heating element is installed at the level of the mixing blades, the outer surface of which is covered with asbestos insulation, with the possibility of transferring heat to the coolant through the wall of the inner cylinder of the body, such a design of the device increases the reliable performance of laboratory physicochemical research processes for due to the safe transfer of heat from the heating element to the coolant through the wall of the inner cylinder of the housing, covered with asbestos insulation;

Inside the vessel of the autoclave, a metal support is installed with holes evenly spaced over the area, repeating the shape of the thrust part of the ampoule reactor vessels, this leads to an increase in the reliable performance of laboratory physicochemical research processes due to the uniform transfer of heat to the ampoule reactor vessels.

Comparison of the proposed solution with the analogue and the prototype did not reveal the signs of the proposed solution in them, this made it possible to conclude that the criterion of "novelty" was met.

Brief Description of Figures

The figure shows a schematic cross-section of a laboratory ampoule autoclave device, including 1 - a shell of the outer cylinder of the autoclave body; 2 - cylindrical inner vessel of the autoclave; 3 - heating heating element; 4 - uniform air gap between the side walls and the lower bases of the body cylinders; 5 - a coolant in the form of glycerin; 6 - coolant level; 7 - removable autoclave cover; 8 - metal support with holes repeating the shape of the thrust part of the ampoule reactor vessels; 9 - regulator for control of heat supply; 10 - thermocouple; 11 - metal ampoule of the reactor vessel; 12 - asbestos insulation of the outer casing; 13 - asbestos insulation of the heating element; 14 - mechanical stirrer; 15 - connecting pipe; 16 - collar combined with a sliding bearing; 17 - shaft; 18 - belt drive pulley from the electric motor.

Implementation of the utility model

The work of the laboratory ampoule autoclave is carried out as follows. Carrying out the cooking process in an autoclave is close to the technology of obtaining cellulose in production. Cooking temperature and duration are the determining factors. After loading the coolant in the form of glycerin 5 to level 6 into the cylindrical inner tank 2 of the autoclave, the preparation of the cooking process is performed by heating with a heating spiral electric heating cable in the form of a heating element 3, installed on the outside of the inner cylinder 2 of the housing to the level of mixing blades 14 of the coolant to (50-60 ) ° C. For reliable laboratory physical and chemical research processes, constant mixing of the coolant with blades 14 through a shaft 17 installed in a connecting tube 15 in a sliding bearing with a collar 16 through a belt pulley from an electric motor is used. Additionally installed asbestos insulation of the heating element 13 and asbestos insulation of the outer casing 12 of the autoclave. Chips 3-5 mm thick and 15-25 mm long are placed in a metal ampoule of the reactor vessel 11 together with a cooking solution in the form of white liquor. Ampoules 11 hermetically screwed with a lid are installed in a metal support with holes 8, repeating the shape of the thrust part of the ampoule reactor vessels 11. The autoclave lid 7 is closed, on which the thermocouple 10 is fixed, transmitting the parameters to the heat control controller 9. Next, the reactor vessels 11 are heated to the final temperature (160 ± 10) ° С, withstand the process at this temperature. The temperature inside the reactor vessels is controlled using a temperature sensor 10. After the experiment is completed, the heating element 3 is turned off.

Sources of information

1. The device is a universal reactor NPO "Autoclaves" (http://autoclaves.ru/);

2. Patent RU 130878, IPC B01J 3/04, published: 08/10/2013 Bull. No. 22.

Claims (1)

Laboratory ampoule autoclave, including a reactor vessel with a lid, equipped with a thermostatting system, characterized in that the autoclave is performed as a vertical cylindrical container inserted into another cylinder with a uniform air gap between the side walls and the lower bases of the cylinders, the outer surface of the outer casing of the autoclave is covered with asbestos insulation, in in the middle of the lower bases a connecting tube is installed, through which a vertical shaft passes in a sliding bearing with a collar, at the top of the shaft end, stirring blades are fixed, at the bottom of it a pulley for a belt drive with an electric motor is attached, with the possibility of stirring the coolant in the form of glycerin placed in the inner cylinder of the autoclave, from the outer side of the inner cylinder of the body, a spiral electric heating cable in the form of a heating element is installed at the level of the mixing blades, the outer surface of which is covered with asbestos insulation, with the possibility heat transfer to the coolant through the wall of the inner cylinder of the casing; inside the container of the autoclave casing there is a metal support with holes evenly spaced over the area, repeating the shape of the thrust part of the ampoule reactor vessels.

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