A centrifuge (10) and a method for preventing the ignition of combustible temperature control media in centrifuges (10) after a crash of the centrifuge rotor are presented. Ignition is prevented by the release of a protective gas in the event of a crash. More precisely, the released protective gas forms a flow that displaces the oxygen, distributes the escaping temperature control medium and fundamentally changes the momentary ratio of the concentration of oxygen to temperature control medium in such a manner that no ignition can take place either inside or outside the centrifuge (10). Thereby, combustible temperature control media can be used without safety concerns for controlling the temperature of centrifuges (10).

A centrifuge (10) and a method for preventing the ignition of combustible temperature control media in centrifuges (10) after a crash of the centrifuge rotor are presented. Ignition is prevented by the release of a protective gas in the event of a crash. More precisely, the released protective gas forms a flow that displaces the oxygen, distributes the escaping temperature control medium and fundamentally changes the momentary ratio of the concentration of oxygen to temperature control medium in such a manner that no ignition can take place either inside or outside the centrifuge (10). Thereby, combustible temperature control media can be used without safety concerns for controlling the temperature of centrifuges (10).

A disc-type centrifuge is configured to use clean water as sealing water to be supplied at high pressure to a sealing mechanism unit. A pump is disposed on a circulation pathway connecting a sealing water tank, in which the sealing water is stored, and the sealing mechanism unit. The sealing water (clean water) is circulated between the sealing water tank and the sealing mechanism unit by the pump. The pump is connected to the drive shaft of a motor that supplies a driving force to a rotating shaft and bowl and is configured so that the pump is operated by receiving the driving force of the motor.

A disc-type centrifuge is configured to use clean water as sealing water to be supplied at high pressure to a sealing mechanism unit. A pump is disposed on a circulation pathway connecting a sealing water tank, in which the sealing water is stored, and the sealing mechanism unit. The sealing water (clean water) is circulated between the sealing water tank and the sealing mechanism unit by the pump. The pump is connected to the drive shaft of a motor that supplies a driving force to a rotating shaft and bowl and is configured so that the pump is operated by receiving the driving force of the motor.

The invention relates to a method for processing explosive products in a separating machine (10) which comprises a rotary apparatus (30) located in a drum (20), wherein the drum (20) is located in a machine housing (40). According to the invention, a cooling liquid is applied, in particular sprayed, onto an outer surface (21) of the drum (20), at least onto portions thereof and/or intermittently, during processing of the products, and the temperature in the machine housing (40) is monitored during processing.

The invention relates to a method for processing explosive products in a separating machine (10) which comprises a rotary apparatus (30) located in a drum (20), wherein the drum (20) is located in a machine housing (40). According to the invention, a cooling liquid is applied, in particular sprayed, onto an outer surface (21) of the drum (20), at least onto portions thereof and/or intermittently, during processing of the products, and the temperature in the machine housing (40) is monitored during processing.

A vacuum chamber structure of an ultra-high gravity geotechnical centrifuge device, comprising: a cylindrical shell, a convex head, a bottom head, a lower bearing sealing cover, and a vacuum pressure-bearing chamber formed by sealing a top cylindrical cylinder and an upper sealing plate with sealing rings; wherein a high-speed rotor system is enclosed in the vacuum pressure-bearing chamber, and a cylindrical cooling device is installed between an internal side of the cylindrical shell and the high-speed rotor system. An annular cooling device is provided directly above the hanging baskets on both sides of the centrifuge arm. A vibration isolation expansion joint is arranged at the intersection of the high-speed rotor system and the cylindrical cylinder, which isolates the vibration of the main engine from the vacuum chamber and greatly reduces the vibration. The lower bearing and the upper bearing system are placed outside the vacuum pressure chamber, so that the centrifuge operates under vacuum with low power consumption, while the bearing system reliably operates under normal pressure, the present invention is capable of making the gravity acceleration of the ultra-gravity geotechnical centrifuge reach more than 1500 g, and solves the problems of large vibration and difficult heat dissipation of the ultra-high gravity centrifuge.

A vacuum chamber structure of an ultra-high gravity geotechnical centrifuge device, comprising: a cylindrical shell, a convex head, a bottom head, a lower bearing sealing cover, and a vacuum pressure-bearing chamber formed by sealing a top cylindrical cylinder and an upper sealing plate with sealing rings; wherein a high-speed rotor system is enclosed in the vacuum pressure-bearing chamber, and a cylindrical cooling device is installed between an internal side of the cylindrical shell and the high-speed rotor system. An annular cooling device is provided directly above the hanging baskets on both sides of the centrifuge arm. A vibration isolation expansion joint is arranged at the intersection of the high-speed rotor system and the cylindrical cylinder, which isolates the vibration of the main engine from the vacuum chamber and greatly reduces the vibration. The lower bearing and the upper bearing system are placed outside the vacuum pressure chamber, so that the centrifuge operates under vacuum with low power consumption, while the bearing system reliably operates under normal pressure, the present invention is capable of making the gravity acceleration of the ultra-gravity geotechnical centrifuge reach more than 1500 g, and solves the problems of large vibration and difficult heat dissipation of the ultra-high gravity centrifuge.

The present application provides a compound refrigeration system for a heat pipe of a supergravity centrifuge. The compound refrigeration system for the heat pipe of the supergravity centrifuge includes a rotor rotating around a vertical axis, an experimental cabin covering outside the rotor, and a corresponding cooling system. The rotor is provided with a shaft part which is in running fit with the experimental cabin. The shaft part is provided with a shaft top end located outside the experimental cabin. The cooling system includes a liquid cooling device and an evaporative cooling device. The liquid cooling device comprises a refrigeration source, and a first cooling medium circulating pipeline communicated with the refrigeration source and thermally coupled with a cabin wall of the experimental cabin. The evaporative cooling device includes a condensation chamber arranged outside the experimental cabin, and a heat pipe radiator thermally coupled with the rotor.

The present application provides a compound refrigeration system for a heat pipe of a supergravity centrifuge. The compound refrigeration system for the heat pipe of the supergravity centrifuge includes a rotor rotating around a vertical axis, an experimental cabin covering outside the rotor, and a corresponding cooling system. The rotor is provided with a shaft part which is in running fit with the experimental cabin. The shaft part is provided with a shaft top end located outside the experimental cabin. The cooling system includes a liquid cooling device and an evaporative cooling device. The liquid cooling device comprises a refrigeration source, and a first cooling medium circulating pipeline communicated with the refrigeration source and thermally coupled with a cabin wall of the experimental cabin. The evaporative cooling device includes a condensation chamber arranged outside the experimental cabin, and a heat pipe radiator thermally coupled with the rotor.