CN210331726U

CN210331726U - Novel decompression sublimation pipe

Info

Publication number: CN210331726U
Application number: CN201921150442.9U
Authority: CN
Inventors: 高建华; 乔冠伟; 高立群
Original assignee: Hangzhou Aode Technology Co ltd
Current assignee: Hangzhou Aode Technology Co ltd
Priority date: 2019-07-22
Filing date: 2019-07-22
Publication date: 2020-04-17
Anticipated expiration: 2029-07-22

Abstract

The utility model provides a novel decompression sublimation pipe, locates the inner tube in the outer tube including outer tube and cover, be provided with central tubule in the inner tube, central tubule wall forms the cooling chamber with inner tube outer wall, the utility model relates to a simply, the gaseous sample flow after the sublimation is longer, can effectively separate out different components in the sample to the subregion is attached to central tubule inner wall.

Description

Novel decompression sublimation pipe

Technical Field

The utility model belongs to the technical field of the sublimation pipe, concretely relates to novel decompression sublimation pipe.

Background

The distinction between organic and inorganic reactions is that the reaction is often difficult to carry out completely, resulting in partial remainders of the starting materials, often accompanied by the appearance of by-products, making the work-up after the reaction difficult. For some organic reactions in which the product is in a solid state, the product is often difficult to separate and purify by conventional methods such as column chromatography, extraction, recrystallization and the like due to low solubility of the product in the post-treatment process, and thus a sublimation operation is required to purify and separate the target product. The tradition is used for the decompression sublimation pipe of sublimation operation to embolia the outer tube with the inner tube in, inner tube and comdenstion water headtotail, outer tube branch mouth of pipe and vacuum pump connection, like this at the evacuation in-process, the gaseous some after the sample sublimation can be followed branch mouth and is overflowed along with the vacuum pump, and difficult separation sublimation point is close material.

SUMMERY OF THE UTILITY MODEL

The utility model provides a novel decompression sublimation pipe to prior art's not enough, can separate the close material of sublimation point.

The technical scheme of the utility model as follows: the utility model provides a novel decompression sublimation pipe, includes the outer tube and the inner tube of cover locating in the outer tube, be provided with central tubule in the inner tube, central tubule wall and inner tube outer wall form the cooling chamber.

Preferably, the bottom of the central tubule is trumpet-shaped.

Preferably, the top of the central tubule extends beyond the inner tube orifice.

Preferably, the inner pipe extends outwards to form a first flange near the nozzle, the top of the outer pipe extends outwards to form a second flange, and the first flange and the second flange are abutted.

Preferably, the bottom of the first flange is provided with a first gasket groove, the top of the second flange is provided with a second gasket groove corresponding to the first gasket groove, and the first flange and the second flange are sealed by a gasket.

Preferably, the inner pipe is filled with a solid cooling material.

Preferably, the solid temperature reducing substance is filled according to gradient temperature difference.

Preferably, the inner pipe is filled with liquid circulating substances, and the top of the orifice of the inner pipe is communicated with the outside.

The utility model has the advantages that compared with the traditional decompression sublimation tube structure, the sublimation tube structure of the utility model lengthens the desublimation attachment area of the sublimation gasification sample, thus the zone desublimation can be generated in the desublimation area, and the sample components can be primarily separated; meanwhile, due to the special space design of the cooling cavity, air cooling, water cooling, oil cooling and even sand grain or metal adding can be conveniently arranged for cooling, gradient cooling is formed, and mixed samples with different sublimation points can be accurately separated.

Drawings

Fig. 1 is an exploded schematic view of the present invention;

FIG. 2 is a cross-sectional view of the assembly of the present invention;

in the figure: 1. inner tube, 11, first flange, 111, first gasket groove, 2, outer tube, 21, second flange, 211, second gasket groove, 3, central tubule, 4, cooling chamber.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1 and 2, a novel decompression sublimation pipe comprises an outer pipe 2 and an inner pipe 1 sleeved in the outer pipe 2, a central thin tube 3 is arranged in the inner tube 1, the inner tube 1 and the central thin tube 3 are of an integral structure, namely, the bottom of the inner tube 1 is stretched from bottom to top to form a central thin tube 3, the wall of the central thin tube 3 and the outer wall of the inner tube 1 form a cooling cavity 4, the space design of the cooling cavity 4 is convenient for placing air cooling, water cooling, oil cooling or sand grains and metal microspheres/powder, the desublimation path of the sublimed substance is increased by the gradient change of the temperature of the cooling medium in the cooling cavity 4 and the elongated design of the central tubule 3, thereby separating the mixed samples with different sublimation points accurately, opening the top of the central tubule 3, for connection to a vacuum pump via a hose, while the length of the central tubule 3 can be designed according to the type of sample to be separated.

In the embodiment, the bottom of the central tubule 3 is horn-shaped, so that a sample can conveniently enter the central tubule 3 after being sublimated, the top of the central tubule 3 exceeds the opening of the inner tube 1, and the central tubule 3 is conveniently connected with a hose and a vacuum pump;

the inner pipe 1 extends outwards to form a first flange 11 at a position close to the pipe orifice, the top of the outer pipe 2 extends outwards to form a second flange 21, and the first flange 11 is abutted with the second flange 21, so that the inner pipe 1 and the outer pipe 2 can be sleeved and fixed conveniently;

the bottom of the first flange 11 is provided with a first gasket groove 111, the top of the second flange 21 is provided with a second gasket groove 211 corresponding to the first gasket groove 111, the first flange 11 and the second flange 21 are sealed by gaskets, and a strong special metal clamp is used for providing pressing force during sealing, so that the inner pipe 1 and the outer pipe 2 are in sealing fit;

the inner pipe 1 is filled with a solid cooling material, and the solid cooling material is filled according to gradient temperature difference;

as another embodiment of the present invention, the inner tube 1 contains liquid circulating material and the top of the opening of the inner tube 1 is communicated with the outside.

The utility model discloses the working process:

the utility model discloses an outer tube 2 bottom is arranged in to the sample that will need sublime, establish inner tube 1 cover in outer tube 2, and seal fixedly through the sealing washer, the accessible metal clip presss from both sides tightly and improves sealing strength, the fine sand (also can adopt the cooling gradient design of metal microballon powder) that will heat to certain suitable different gradient temperature is put into cooling chamber 4 according to the order from high to bottom in proper order in, simultaneously inner tube 1 mouth is sealed, form the gradient condition of sublimating, be connected central tubule 3 with the vacuum pump with the hose, open the vacuum pump and make the work intracavity reach the low pressure condition, use the sample of waiting to sublime of sand bath heating bottom, in this way, different compositions in the sample reach respectively sublime the point after escaping from the sample, under factors such as vacuum pump suction, gaseous state's component upwards flows, different components can produce certain separation phenomenon because of its own difference of nature in this in-process, meanwhile, when the desublimation areas with different gradient temperatures are reached, different components can be desublimated and attached to the tube wall of the central tubule 3 in sequence, so that the separation of the sample is realized;

for the working process that uses solid cooling material, also can adopt liquid circulation material or gaseous state circulation material simultaneously, specific working process and the difference of above-mentioned working process only lie in changing fine sand into water, oil or gas, and the circulation of water, oil or gas is guaranteed with external recalling to the mouth of inner tube 1 in addition to reach the purpose of separating different sublimation point materials.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. A novel decompression sublimation pipe which is characterized in that: inner tube (1) in outer tube (2) is located including outer tube (2) and cover, be provided with central tubule (3) in inner tube (1), central tubule (3) wall forms cooling chamber (4) with inner tube (1) outer wall.

2. The novel reduced-pressure sublimation tube according to claim 1, characterized in that: the bottom of the central thin tube (3) is trumpet-shaped.

3. The novel reduced-pressure sublimation tube according to claim 1 or 2, characterized in that: the top of the central thin tube (3) exceeds the opening of the inner tube (1).

4. The novel reduced-pressure sublimation tube according to claim 1, characterized in that: the inner pipe (1) is close to the pipe orifice and extends outwards to form a first flange (11), the top of the outer pipe (2) extends outwards to form a second flange (21), and the first flange (11) is abutted to the second flange (21).

5. The novel reduced-pressure sublimation tube according to claim 4, characterized in that: the bottom of the first flange (11) is provided with a first gasket groove (111), the top of the second flange (21) is provided with a second gasket groove (211) corresponding to the first gasket groove (111), and the first flange (11) and the second flange (21) are sealed through gaskets.

6. The novel reduced-pressure sublimation tube according to claim 1, characterized in that: the inner tube (1) is internally provided with a solid cooling material.

7. The novel reduced-pressure sublimation tube according to claim 6, wherein: the solid cooling material is filled according to the gradient temperature difference.

8. The novel reduced-pressure sublimation tube according to claim 1, characterized in that: the inner pipe (1) is filled with liquid circulating substances, and the top of the opening of the inner pipe (1) is communicated with the outside.