CN211602656U - Anti-pollution filter device of physical adsorption instrument sample tube - Google Patents
Anti-pollution filter device of physical adsorption instrument sample tube Download PDFInfo
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- CN211602656U CN211602656U CN202020233722.2U CN202020233722U CN211602656U CN 211602656 U CN211602656 U CN 211602656U CN 202020233722 U CN202020233722 U CN 202020233722U CN 211602656 U CN211602656 U CN 211602656U
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Abstract
An anti-pollution filter equipment of physical adsorption appearance sample cell includes: the test tube comprises a test tube jacket, a test tube jacket filter layer and a seal ring, and is characterized in that a sample tube filter plug is arranged; the test tube jacket comprises a test tube jacket main body and a sealing nut, the test tube jacket main body is of an internal thread structure with a central through hole, and an external thread structure with the central through hole of the sealing nut is matched and screwed with the internal thread of the test tube jacket main body; the test tube jacket filter layer is fixedly arranged in the central through hole at the top of the test tube jacket main body; the sealing ring is nested outside the pipe diameter of the sample pipe and is arranged between the inclined plane in the test tube jacket main body and the top of the sealing nut; the sample tube filter plug is fixedly arranged at the opening of the sample tube. The device adopts the flexible organic material with high porosity and large flux as the filter plug of the sample tube, so that the powder sample can be effectively prevented from flying to pollute the pipeline of the physical adsorption instrument, and the test efficiency of the physical adsorption instrument is not influenced.
Description
Technical Field
The utility model relates to a physical adsorption instrument field, concretely relates to anti-pollution filter equipment of physical adsorption instrument sample cell.
Background
At present, in the process of degassing and testing a powder sample by a physical adsorption instrument, the powder sample is easy to fly to pollute a pipeline inside the instrument. Although the anti-pollution filter device is arranged in the instrument, whether the anti-pollution filter device is polluted or damaged is not easy to detect, and if the anti-pollution filter device in the instrument is polluted or fails, the powder sample is easy to pollute the pipeline in the instrument after flying, so that the instrument is damaged. In addition, although some physical adsorption instruments at present are additionally provided with the anti-pollution filter device of the sample tube on the basis of the anti-pollution filter device in the instrument, the anti-pollution filter device of the sample tube is structurally characterized in that a stainless steel filter element structure is arranged in a fixed shell, the fixed shell reduces the cross section of the stainless steel filter element, and the flux of the stainless steel filter element is reduced; in addition, stainless steel filter elements also have limitations in their applications herein: that is, the powder sample easily passes through the stainless steel filter element to pollute the instrument pipeline when the aperture of the stainless steel filter element is large, and the air resistance is large when the aperture of the stainless steel filter element is small, so that the test efficiency is reduced.
SUMMERY OF THE UTILITY MODEL
In order to overcome the difficult inspection of the inside anti-pollution filter equipment of above-mentioned instrument and clearance to and the sample cell filters the big defect that filter effect is poor when big low and stainless steel filter core aperture of the big test efficiency of air-lock when stopping up's stainless steel filter core aperture, the utility model provides an anti-pollution filter equipment of physical adsorption appearance sample cell, press from both sides the cover including the test tube, the test tube presss from both sides the cover filter layer, the sealing washer, the sample cell filters the stopper.
The test tube jacket comprises a test tube jacket main body and a sealing nut, the test tube jacket main body is of an internal thread structure with a central through hole, the top aperture of the central through hole is smaller, the bottom aperture of the central through hole is larger, and the top hole and the bottom hole are connected through an inclined plane; the sealing nut is of an external thread structure with a central through hole and is matched and screwed with an internal thread of the test tube clamping sleeve main body, and the hole diameters of the central through hole of the test tube clamping sleeve main body and the central through hole of the sealing nut are larger than the outer diameter of the sample tube.
The test tube presss from both sides the fixed setting of cover filter layer and presss from both sides inside the top center through-hole of cover main part at the test tube.
The sealing ring is nested outside the opening of the sample tube and is arranged between the inclined plane in the test tube jacket main body and the top of the sealing nut; after the sealing nut is screwed down, the sealing ring is elastically deformed to realize sealing.
The sample tube filter plug is composed of a sample tube filter plug fixing ring and a sample tube filter plug main body; the outer diameter of the sample tube filter plug fixing ring is the same as that of the sample tube, and a groove is formed in the outer surface of the fixing ring; the main body of the sample tube filter plug is a flexible porous organic filter material which has high porosity and large flux, the appearance of the material is cylindrical, and the outer diameter of the material is slightly larger than the inner diameter of the sample tube; the inner surface of the sample tube filter plug fixing ring is adhered to the outer surface of the top of the sample tube filter plug main body to jointly form the sample tube filter plug.
By the embodiment that above-mentioned utility model provides, its beneficial effect of anti-pollution filter equipment of a physical adsorption appearance sample cell is: the flexible porous organic filter material with high porosity and high flux is used as the filter plug of the sample tube, so that the powder sample can be effectively prevented from flying to pollute a physical adsorption instrument pipeline, and the influence on the gas flux of the sample tube is small.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a cross-sectional view of an anti-contamination filter apparatus for a sample tube of a physical adsorption apparatus;
fig. 2 is a cross-sectional view of a cylindrical flexible filter plug.
In the figure, 1, a test tube jacket main body, 2, a test tube jacket filter layer, 3, a sample tube filter plug, 31, a sample tube filter plug fixing ring, 32, a sample tube filter plug main body, 4, a sealing ring, 5, a sealing nut and 6, a sample tube are arranged.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the 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 embodiment of 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.
[ example 1 ]
FIG. 1 is a cross-sectional view of an anti-pollution filtering device for a sample tube of a physical adsorption apparatus, wherein the test tube jacket comprises a test tube jacket main body 1 and a sealing nut 5, the test tube jacket main body 1 is an internal thread structure with a central through hole, the top aperture of the central through hole is smaller, the bottom aperture of the central through hole is larger, and the top hole and the bottom hole are connected through an inclined plane; the sealing nut 5 is an external thread structure with a central through hole and is matched and screwed with the internal thread of the test tube jacket main body 1, and the hole diameters of the central through hole of the test tube jacket main body and the central through hole of the sealing nut are larger than the outer diameter of the sample tube. The test tube presss from both sides the fixed top center through-hole that sets up at the test tube and presss from both sides the cover main part of cover of filter layer 2 inside. The sealing ring 4 is nested outside the diameter of the sample tube, and is arranged between the inclined plane in the test tube jacket main body 1 and the top of the sealing nut 5. The sample tube filter plug 3 is composed of a sample tube filter plug fixing ring 31 and a sample tube filter plug main body 32; the outer diameter of the sample tube filter plug fixing ring 31 is the same as that of the sample tube, and a groove is formed in the outer surface of the fixing ring; the sample tube filter plug main body 32 is made of a flexible organic material which has high porosity and large flux, is cylindrical in appearance and has an outer diameter slightly larger than the inner diameter of the sample tube; the inner surface of the sample tube filter plug fixing ring 31 and the outer surface of the top of the sample tube filter plug main body 32 are adhered together to form the sample tube filter plug.
[ example 2 ]
As shown in fig. 2, the outer surface of the sample tube filter plug fixing ring 31 may be a groove or a diamond pattern.
The utility model discloses the during operation, 3 stoppers of sample cell filter stopper are on the sample cell that is equipped with the sample, and the outer wall and the sample cell inner wall extrusion of this filter stopper are sealed, and the intraductal gas of sample passes through flow in the hole of sample cell filter stopper main part 32, even there is the powder sample to fly upward also can by the porosity is high, flux is big, and the material blocks in the sample cell for flexible organic material sample cell filter stopper main part 32.
The above description is only for the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are all covered by the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (3)
1. Anti-pollution filter equipment of physical adsorption appearance sample cell includes: the test tube comprises a test tube jacket, a test tube jacket filter layer and a seal ring, and is characterized in that a sample tube filter plug is arranged; the test tube jacket comprises a test tube jacket main body and a sealing nut, the test tube jacket main body is of an internal thread structure with a central through hole, and an external thread structure with the central through hole of the sealing nut is matched and screwed with the internal thread of the test tube jacket main body; the test tube jacket filter layer is fixedly arranged in the central through hole at the top of the test tube jacket main body; the sealing ring is nested outside the pipe diameter of the sample pipe and is arranged between the inclined plane in the test tube jacket main body and the top of the sealing nut; the sample tube filter plug is fixedly arranged at the opening of the sample tube.
2. The anti-contamination filtering apparatus for the sample tube of the physical adsorption instrument according to claim 1, wherein the sample tube filter plug is composed of a sample tube filter plug fixing ring and a sample tube filter plug main body; the outer diameter of the sample tube filter plug fixing ring is the same as that of the sample tube; the main body of the sample tube filter plug is made of flexible organic materials, and the materials have high porosity and high flux.
3. The anti-contamination filtering device for the sample tube of the physical adsorption instrument according to claim 2, wherein the outer surface of the fixing ring of the filter plug of the sample tube is provided with a groove or a diamond knurl.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020233722.2U CN211602656U (en) | 2020-03-02 | 2020-03-02 | Anti-pollution filter device of physical adsorption instrument sample tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020233722.2U CN211602656U (en) | 2020-03-02 | 2020-03-02 | Anti-pollution filter device of physical adsorption instrument sample tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211602656U true CN211602656U (en) | 2020-09-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020233722.2U Active CN211602656U (en) | 2020-03-02 | 2020-03-02 | Anti-pollution filter device of physical adsorption instrument sample tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211602656U (en) |
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2020
- 2020-03-02 CN CN202020233722.2U patent/CN211602656U/en active Active
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