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Device for treating pieces of a substrate at high pressure with a supercritical or near-critical treatment medium, piece by piece or in batches

A supercritical and near-critical technology, which is applied in the processing of textile materials, washing equipment, solvent processing, etc., can solve problems such as the limitation of the working range, the influence of faults and problems, and the effect of washing processing, and achieves low cost and simple design. Effect

Active Publication Date: 2006-07-26
STORK BRADANT BV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] One of the disadvantages in this case is that the disclosed device is still susceptible to failures and problems that arise when the standard polymer components of the motor are adversely affected
Furthermore, the permissible operating range of pressure and temperature is limited, thereby affecting in some cases the desired wash treatment effect in this case

Method used

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  • Device for treating pieces of a substrate at high pressure with a supercritical or near-critical treatment medium, piece by piece or in batches
  • Device for treating pieces of a substrate at high pressure with a supercritical or near-critical treatment medium, piece by piece or in batches
  • Device for treating pieces of a substrate at high pressure with a supercritical or near-critical treatment medium, piece by piece or in batches

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Embodiment Construction

[0023] exist figure 1 In , the pressure chamber device as a whole is denoted by reference numeral 1 . The device 1 comprises a pressure chamber 2 , which in this case is formed by a pressure vessel, and has an opening, which can be closed by a cover 3 , for mounting an electric motor 7 with a pump 9 in the pressure vessel. There is also a pipe system 5 with an inlet 5a and an outlet 5b. The electric motor 7 is placed in the pressure chamber 2 . The pump 9 is mounted on the output shaft 8 of the motor 7 . The pump 9 , for example formed by a centrifugal pump with impellers, is in this case mounted directly on the motor shaft 8 . The pump 9 is housed in a pump housing 10 including an inlet 11 and an outlet 12 . The outlet 12 is connected to the outflow port 5b.

[0024] The shown pressure chamber arrangement can be used in a high-voltage circuit as a second pressure chamber in combination with a first pressure chamber for processing substrates.

[0025] Motor 7, which is i...

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Abstract

A device for treating pieces of a substrate at high pressure, piece by piece or in batches, with a treatment medium in the supercritical or near-critical state, comprising a first pressure chamber (2), a pipe system (5) for supplying and discharging the treatment medium, to and from the pressure chamber (2) under high pressure and an electric motor (7), which is fixed to the housing in the first pressure chamber or in a second pressure chamber coupled to the first pressure chamber under the high pressure, for driving an actuator to carry out a mechanical action in the treatment medium. The electric motor (7) is in this case open to the treatment medium and is disposed and designed to be accessible to the treatment medium, in such a manner that during the treatment of a substrate the treatment medium flows through and around the electric motor (7).

Description

[0001] This application claims the benefit of Dutch Patent Application No. NL1028037 filed January 14, 2005, the entire contents of which are incorporated herein by reference. technical field [0002] The invention relates to a device for processing substrates one by one or in batches under high pressure in a pressure chamber using a supercritical or near-critical processing medium, wherein the processing medium contains, for example, CO 2 , N 2 O, lower carbon hydrocarbons (such as ethane and propane), or their mixtures, etc. Background technique [0003] Various devices of this type have been disclosed in the prior art, in which an electric motor is used as the drive means for exerting the mechanical action. However, the treatment media described have the disadvantage of dissolving many polymers in them. If the polymer comes into contact with the processing media, it can cause problems with the polymer sticking, softening, swelling, and even burning. This problem become...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06B1/00D06B9/00D06F43/00D06F37/30H02K3/30H02K5/16
CPCD06F43/02H02K9/10H02K9/08
Inventor H·C·派利坎G·F·武尔莱
Owner STORK BRADANT BV
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