CN102636659B

CN102636659B - Automatic sampling device

Info

Publication number: CN102636659B
Application number: CN201210141261.6A
Authority: CN
Inventors: 徐勇; 潘继国
Original assignee: CHANGSHA WILLSUN TECHNOLOGY CO LTD
Current assignee: Changsha Yg Willsun Technology Co ltd
Priority date: 2012-05-09
Filing date: 2012-05-09
Publication date: 2014-04-23
Anticipated expiration: 2032-05-09
Also published as: CN102636659A

Abstract

An automatic sampling device comprises a sample falling try, a sample falling disc, a sampling joint, a dropped sample rotating shaft, a sample feeding chamber, a purge gas hole, an oxygen inlet channel, a dropped sample channel, a conveying chute, a sample discharging channel and a sample receiving hopper, wherein the sample falling disc is arranged on the sample falling tray, the dropped sample channel is positioned in the vertical direction at the upper part of the sample feeding chamber, the dropped ample rotating shaft is arranged in the sample feeding chamber, the sample receiving hopper is arranged on the dropped sample rotating shaft and can rotate freely around the center of the dropped sample rotating shaft, the height of the sample receiving hopper is equal to the radius of the dropped sample rotating shaft, the purge gas hole is arranged in the conical top of the sample receiving hopper, the sample feeding chamber is communicated with the sampling joint by the conveying chute, the oxygen inlet channel is arranged in the horizontal direction on the left side of the sampling joint, and the sample discharging channel is arranged in the vertical direction at the lower part of the sampling joint. According to the automatic sampling device, the various requirements in the sampling process when a test is conducted can be realized well, the motion procedures are reduced, the structure is relatively simple and the failure rate is low.

Description

Automatic sampling apparatus

Technical field

The present invention relates to WS series automatic elemental analyzer, be specially automatic sampling apparatus.

Background technology

In element (C, H, the N etc.) analytical instrument of solid matter, need to realize continuous auto injection, and require first the surface of the sample wrapping with tinfoil paper to be purged before sample introduction, during sample introduction, stop as far as possible air to enter in firing chamber, after sample introduction, to seal injection port, therefore for the mechanism that reaches the design of this object by horizontally rotating, the part such as sample is temporary, sample introduction sealing forms.Existing procucts structure is more complicated at present, and failure rate is slightly high.

Summary of the invention

Technical matters solved by the invention is to provide automatic sampling apparatus, to solve the shortcoming in above-mentioned background technology.

Technical matters solved by the invention realizes by the following technical solutions:

Automatic sampling apparatus, comprise falling sample pallet, sample dish falls, sample introduction joint, fall sample rotating shaft, sample presentation chamber, purge pore, oxygen inlet channel, fall sample passage, carry slideway, sample output passage and connect sample funnel, described fall sample dish be arranged on sample pallet, the sample dish that falls can be rotated counterclockwise around center at the sample pallet that falls, described fall the central axis in sample dish periphery setting-out hole with the central axis that falls sample passage on same vertical curve, described fall sample passage be positioned on the top vertical direction of sample presentation chamber, described sample presentation chamber interior is for falling sample rotating shaft, described fall sample rotating shaft be provided with and connect sample funnel, the described sample funnel that connects can rotate freely around the center of falling sample rotating shaft, the described height that connects sample funnel is the radius that falls sample rotating shaft, the described conical top that connects sample funnel has purging pore, between described sample presentation chamber and sample introduction joint, by conveying slideway, be connected, in the left side horizontal direction of described sample introduction joint, have oxygen inlet channel, on the bottom vertical direction of described sample introduction joint, have sample output passage, described oxygen inlet channel is connected with the middle part of sample output passage.

In the present invention, described in to fall sample passage parallel with vertical direction, described conveying slideway and vertical direction are 45 ° of angles, described sample output passage is parallel with vertical direction, described oxygen inlet channel and horizontal direction parallel.

In the present invention, described in the fall internal diameter of the sample dish bottom that falls on sample pallet top equate with the internal diameter that falls sample passage, described in fall the internal diameter of sample passage the cone bottom diameter with connecing sample funnel equate, described in connect sample funnel cone bottom diameter equate with the internal diameter of carrying slideway.

beneficial effect

Requirements when the present invention realizes test better in sample introduction process, and reduce by a course of action, structure is relatively simple, failure rate is low.

Accompanying drawing explanation

Fig. 1 is structure cut-open view of the present invention.

Embodiment

For technological means, creation characteristic that the present invention is realized, reach object and effect is easy to understand, below in conjunction with concrete diagram, further set forth the present invention.

Participate in Fig. 1, the structure cut-open view of automatic sampling apparatus, automatic sampling apparatus, comprise falling sample pallet 1, sample dish 2 falls, sample introduction joint 3, fall sample rotating shaft 4, sample presentation chamber 5, purge pore 6, oxygen inlet channel 7, fall sample passage 8, carry slideway 9, sample output passage 10 and connect sample funnel 11, described fall sample dish 2 be arranged on sample pallet 1, the sample dish 2 that falls can be rotated counterclockwise around center at the sample pallet 1 that falls, described fall the central axis in sample dish 2 periphery setting-out holes with the central axis that falls sample passage 8 on same vertical curve, described fall sample passage 8 be positioned on the top vertical direction of sample presentation chamber 5, 5 inside, described sample presentation chamber are for falling sample rotating shaft 4, described fall sample rotating shaft 4 be provided with and connect sample funnel 11, the described sample funnel 11 that connects can rotate freely around the center of falling sample rotating shaft 4, the described height that connects sample funnel 11 is the radius that falls sample rotating shaft 4, the described conical top that connects sample funnel 11 has and purges pore 6, between described sample presentation chamber 5 and sample introduction joint 3, by conveying slideway 9, be connected, in the left side horizontal direction of described sample introduction joint 3, have oxygen inlet channel 7, on the bottom vertical direction of described sample introduction joint 3, have sample output passage 10, described oxygen inlet channel 7 is connected with the middle part of sample output passage 10.

In the present invention, described in to fall sample passage 8 parallel with vertical direction, described conveying slideway 9 is 45 ° of angles with vertical direction, described sample output passage 10 is parallel with vertical direction, described oxygen inlet channel 7 and horizontal direction parallel.

In the present invention, described fall the internal diameter of sample dish 2 bottoms that fall on sample pallet 1 top equate with the internal diameter that falls sample passage 8, described fall the cone bottom diameter with connecing sample funnel 11 of internal diameter of sample passage 8 equate, described in connect sample funnel 11 cone bottom diameter equate with the internal diameter of carrying slideway 9.

During work, first make sample presentation chamber 5 in connecing sample state, adjustment connects sample funnel 11, make to connect sample funnel 11 and fall sample passage 8 and be connected, opening gas admittance valve makes oxygen be blown into from the purging pore 6 of the conical top that connects sample funnel 11, prevent that air from entering firing chamber, then start stepper motor, stepper motor drives sample dish 2 to rotate around the sample pallet 1 that falls, sample relies on gravity naturally to fall, successively by the sample dish 2 that falls, falling sample passage 8 enters and connects sample funnel 11, the oxygen being now blown into from purging pore 6 can purge sample, then driven by motor is fallen sample rotating shaft 4 and is made to connect sample funnel 11 around the central rotation that falls sample rotating shaft 4, can be by firing chamber and extraneous isolating seal when rotating 90 °, when rotating 135 °, sample ball tumbles into firing chamber along slope.

In the present invention, connect sample funnel 11 and fall sample rotating shaft 4 not only as the temporary parts of sample but also as isolating seal parts, direct radiation injection port of the high temperature that the conveying slideway 9 that is 45 ° of angles with vertical direction in addition makes firing chamber, extends life-span of seal.

The sample funnel 11 that connects that center band purges pore 6 has well solved the temporary and purging problem of sample, the quadrat method that falls of its rotation overturning has well solved in sample introduction and sample introduction process the isolating seal problem with outside air, the conveying slideway 9 that is 45 ° of angles with vertical direction had both guaranteed that sample can tumble naturally, well solve again the direct radiation injection port of high temperature problem, thereby extended the life-span of seal.

More than show and described ultimate principle of the present invention and principal character and advantage of the present invention; the technician of the industry should understand; the present invention is not restricted to the described embodiments; that in above-described embodiment and instructions, describes just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications; these changes and improvements all fall in the claimed scope of the invention, and the claimed scope of the present invention is defined by appending claims and equivalent thereof.

Claims

1. automatic sampling apparatus, comprise falling sample pallet, sample dish falls, sample introduction joint, fall sample rotating shaft, sample presentation chamber, purge pore, oxygen inlet channel, fall sample passage, carry slideway, sample output passage and connect sample funnel, it is characterized in that, described fall sample dish be arranged on sample pallet, the sample dish that falls can be rotated counterclockwise around center at the sample pallet that falls, described fall the central axis in sample dish periphery setting-out hole with the central axis that falls sample passage on same vertical curve, described fall sample passage be positioned on the top vertical direction of sample presentation chamber, described sample presentation chamber interior is for falling sample rotating shaft, described fall sample rotating shaft be provided with and connect sample funnel, the described sample funnel that connects can rotate freely around the center of falling sample rotating shaft, the described height that connects sample funnel is the radius that falls sample rotating shaft, the described conical top that connects sample funnel has purging pore, between described sample presentation chamber and sample introduction joint, by conveying slideway, be connected, in the left side horizontal direction of described sample introduction joint, have oxygen inlet channel, on the bottom vertical direction of described sample introduction joint, have sample output passage, described oxygen inlet channel is connected with the middle part of sample output passage,

Described fall sample passage parallel with vertical direction, described conveying slideway and vertical direction are 45 ° of angles, described sample output passage is parallel with vertical direction, described oxygen inlet channel and horizontal direction parallel.

2. automatic sampling apparatus according to claim 1, it is characterized in that, described fall the internal diameter of the sample dish bottom that falls on sample pallet top equate with the internal diameter that falls sample passage, described fall the cone bottom diameter with connecing sample funnel of internal diameter of sample passage equate, described in connect sample funnel cone bottom diameter equate with the internal diameter of carrying slideway.