Title:
ELEMENT ANALYSIS DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/182058
Kind Code:
A1
Abstract:
In order to provide an element analysis device that, with a simple mechanism, can prevent suction from occurring and dust from spreading within a heating furnace when the heating furnace is opened, this element analysis device 100, which comprises a heating furnace 3 heating a crucible MP that has a sample therein and vaporizing the sample to generate a sample gas, is configured such that the heating furnace 3 comprises a first electrode 31, a second electrode 32 that is configured so as to be able to move, within an interior space, between a furnace-closed position where the crucible MP is sandwiched between the first electrode 31 and the second electrode 32 and a furnace-open position that is a prescribed distance away from the furnace-closed position, a drive mechanism 34 that causes the second electrode 32 to move between the furnace-closed position and the furnace-open position, a dust suction channel DL that is provided with a dust suction opening DP opening within the heating furnace 3 and suctioning dust, and an ejector 37 that is provided with a suction port VP connected to the heating furnace 3 side in the dust suction channel DL, an ejection port EP connected to the exhaust side in the dust suction channel DL, and a drive port AP to which a working fluid is supplied, and when the drive mechanism 34 causes the second electrode 32 to move from the furnace-closed position to the furnace-open position, the working fluid flows into the ejector 37 from the drive port AP of the ejector 37.
Inventors:
INOUE TAKAHITO (JP)
UCHIHARA HIROSHI (JP)
UCHIHARA HIROSHI (JP)
Application Number:
PCT/JP2021/006092
Publication Date:
September 16, 2021
Filing Date:
February 18, 2021
Export Citation:
Assignee:
HORIBA LTD (JP)
International Classes:
F27B14/06; G01N1/22; G01N25/20; G01N31/12
Domestic Patent References:
| WO2017099120A1 | 2017-06-15 |
Foreign References:
| JPH0533056U | 1993-04-30 | |||
| JP2010008229A | 2010-01-14 | |||
| JP2010008233A | 2010-01-14 | |||
| JPH0738963U | 1995-07-14 | |||
| JPH0295863U | 1990-07-31 | |||
| JP2012047737A | 2012-03-08 | |||
| US20120213244A1 | 2012-08-23 | |||
| US4234541A | 1980-11-18 |
Attorney, Agent or Firm:
NISHIMURA, Ryuhei (JP)
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