CN2202921Y

CN2202921Y - Anaerobic feeder for small grain sumple of electronic spectrum instrument

Info

Publication number: CN2202921Y
Application number: CN 94220147
Authority: CN
Inventors: 陈宝珠; 王水菊; 区泽棠; 徐富春
Original assignee: Xiamen University
Current assignee: Xiamen University
Priority date: 1994-08-25
Filing date: 1994-08-25
Publication date: 1995-07-05
Anticipated expiration: 2004-08-25

Abstract

The utility model discloses a surface analysis testing device, which is composed of a sampling changing tube, a flange disk, a high-voltage reaction chamber, a sample changing glass tube, a sample changing sheathing head, a sample table, and a table seat. The high-voltage reaction chamber forms a hollow cylindrical shape, and both ends of the cylinder extend to flanges; an upper flange is connected with the flange plate, a lower flange is connected with a connecting spectrograph, and the middle part is provided with a notch; the sample changing tube is connected to the flange plate, the sample glass tube is arranged in the hollow chamber of the sample changing tube, and the lower end is sheathed with the sheathing head of the sample changing tube. Small particles sample can be moved in the spectrometer analysis in the condition of isolating with atmosphere; the utility model can avoid damaging the instrument caused by the reaction of high temperature and pressure and poisonous gas, and the device and personal safety can be ensured; the utility model can test to the analysis with longer reaction period, and the efficiency is improved.

Description

Anaerobic feeder for small grain sumple of electronic spectrum instrument

The utility model relates to a kind of surface analysis proving installation.

Electron spectrometer is the important tool of surface analysis, obtains widespread use in subjects such as catalysis, electrification, microelectronics, material science.In heterogeneous catalysis field, electron spectrometer is used to detect chemical state.In order to characterize the time of day of catalyzer in each course of reaction, the sample transfer of this state of reflection must be tested in energy spectrometer.

As everyone knows, heterogeneous catalyst is an anaerobism, can not be exposed in the atmosphere in the transfer process.And general electron spectrometer is owing to lack the sampling device of anaerobism, and behind catalyst reaction, by entering energy spectrometer in the atmosphere, catalyzer itself is had an effect with oxygen in transfer process, and detected intermediate state has very big deviation with intermediate state really.Recently, though there are some energy spectrometeies to have the reaction under high pressure chamber,, then move into the analysis room again and test can the true reaction conditions of simulation after the catalyzer compacting is in flakes reacted.But this method is the simulation reaction condition, is not the true catalyzer in the test reaction process.

The purpose of this utility model is to provide a kind of anaerobism sampling device, and it can be transferred to the granule samples such as catalyzer under the various reactivenesses in the electron spectrometer easily, characterizes the experiment of its time of day.

The utility model comprises and varies pipe, ring flange, reaction under high pressure chamber, mother glass pipe, varies pipe box head, sample stage, sample pedestal, O-ring seal.The reaction under high pressure chamber is hollow cylindrical, and round flange is extended at its two ends; Upper end flange adds O-ring seal with ring flange and is connected, and lower end flange is connected with the original ring flange interface of electron spectrometer.A breach is established at middle part, reaction under high pressure chamber.Vary pipe for hollow cylinder, be sealedly attached on the ring flange.The mother glass pipe places in the cavity that varies pipe, and the cylindric pipe box head that varies is inserted in the lower end.Under the cavity of reaction under high pressure chamber, deploy the sample stage seat, establish sample stage on the sample pedestal.

Outside surface in the reaction under high pressure chamber can be established the ring-type lock ring, establishes a hole on the lock ring, inserts the sample sample-pressing device on the hole.

The utility model can with the condition of atmospheric isolation under the granule sample transfer is gone into electron spectrometer analysis, this is identical in the method effect that quick Sample Room (or the reaction under high pressure chamber) reaction of electron spectrometer then is transferred to the analysis room with sample.Secondly, the infringement that it avoids the reaction pair instrument because of High Temperature High Pressure and toxic gas to cause has also guaranteed the safety of laboratory, instrument and the person.Simultaneously, for needing very long analytical test reaction time, for example investigate life of catalyst, poisoning etc., use the utility model can avoid when using quick Sample Room, preparation room to react to take the electron spectrometer working machine of a large amount of preciousnesses, the work efficiency of electron spectrometer is provided.

Accompanying drawing is a section of structure of the present utility model.

Among the figure, round flange (31,32) is respectively extended at the two ends of hollow cylindrical reaction under high pressure chamber (3), and flange (31) adds O-ring seal (11) with ring flange (2) and is connected, and plays the effect of fixedly varying pipe (1), so that loading and unloading mother glass pipe (4); Flange (32) adds O-ring seal (11) with the original ring flange of electron spectrometer (10) and is connected.The reaction under high pressure chamber is in the quick Sample Room of instrument, and a breach is established at its middle part, so that Robot actions.Vary pipe for hollow cylinder, be sealedly attached on the ring flange (2), be used to load and unload mother glass pipe (4).The circular sample glass tube places in the cavity that varies pipe, and the cylindric pipe box head (5) that varies is inserted in the lower end.The mother glass pipe is locked at varies on the pipe.

At the following deployment sample stage seat (9) of the plenum chamber of reaction under high pressure chamber, establish sample stage (6) on the sample pedestal, so that place specimen.

Can establish ring-type lock ring (8) at the outside surface of reaction under high pressure chamber, establish a hole on the lock ring, establish sample-pressing device (7) on it, when needing, take out sample-pressing device with mechanical arm from the hole of lock ring and compress sample on the sample stage.

Before the experiment, earlier the anaerobism sample is sealed in diameter and is about in the mother glass pipe of 6mm, it is put in the cavity that varies pipe again, with varying the locking of pipe box head, be connected on the ring flange varying the seal of tube thereafter, O-ring seals (11) is used in sealing place.Use reaction under high pressure chamber, Central Plains to be in the quick Sample Room of instrument.

Claims

1, electron spectrometer granule sample anaerobism sampling device, it is characterized in that being provided with and vary pipe, ring flange, reaction under high pressure chamber, mother glass pipe, vary pipe box head, sample stage and sample pedestal, the reaction under high pressure chamber is hollow cylindrical, round flange is extended at its two ends, upper end flange adds O-ring seal with ring flange and is connected, lower end flange is connected with the original ring flange interface of electron spectrometer, and a breach is established at middle part, reaction under high pressure chamber; Vary pipe for hollow cylinder, be sealedly attached on the ring flange, mother glass places in the cavity that varies pipe, and the cylindric pipe box head that varies is inserted in the lower end; Cavity bottom in the reaction under high pressure chamber is provided with the sample pedestal, establishes sample stage on the sample pedestal.

2, electron spectrometer granule sample anaerobism sampling device as claimed in claim 1 is characterized in that establishing the ring-type lock ring in the reaction under high pressure outdoor face, establishes a hole on the lock ring, and establishes the sample sample-pressing device on the hole.