CN212757951U

CN212757951U - Gas chromatograph carrier gas way pipe purifier

Info

Publication number: CN212757951U
Application number: CN202021186360.2U
Authority: CN
Inventors: 王林刚
Original assignee: Beijing Tianlang Hsbc Environmental Testing Co ltd
Current assignee: Beijing Tianlang Hsbc Environmental Testing Co ltd
Priority date: 2020-06-24
Filing date: 2020-06-24
Publication date: 2021-03-23
Anticipated expiration: 2030-06-24

Abstract

The utility model discloses a gas chromatograph carrier gas circuit pipe purification device, which comprises a gas storage bottle, a first purification pipe, a drying pipe and a second purification pipe, wherein the right end of the first purification pipe is sealed, the gas storage bottle is connected with the first purification pipe through an air inlet pipe, the first purification pipe is in threaded connection with the drying pipe, the drying pipe is in threaded connection with the second purification pipe, a first filter screen is arranged on the right side in the first purification pipe, a first activated carbon layer is arranged on the left side of the first filter screen, a drying component is arranged in the drying pipe, a second filter screen is arranged on the right side in the second purification pipe, and a second activated carbon layer is arranged on the left side of the second filter screen; absorb moisture in the gas through set up drying assembly in the drying tube, carry out dual purification through first purge tube and second purge tube, it is very convenient that the drying tube is dismantled simultaneously, is convenient for change the drier in the drying tube, and is connected with the cross on the outlet duct, can connect three gas chromatograph simultaneously and detect, and convenient contrast guarantees the accuracy nature of testing result.

Description

Gas chromatograph carrier gas way pipe purifier

Technical Field

The utility model relates to a gas chromatograph technical field specifically is a gas chromatograph carrier gas way pipe purifier.

Background

A gas chromatograph is a chromatographic analyzer using gas as mobile phase, the principle is that the mixture is separated by the difference of boiling point, polarity and adsorption property of substance, the sample to be analyzed is gasified in a gasification chamber and then carried into a chromatographic column by inert gas, i.e. carrier gas, the column contains liquid or solid fixed phase, each component in the sample tends to form distribution or adsorption balance between the mobile phase and the fixed phase, the sample component is repeatedly distributed and desorbed in motion along with the flowing of the carrier gas, the component with high distribution concentration in the carrier gas flows out of the chromatographic column first, and the component with high distribution concentration in the fixed phase flows out, the component flows out of the chromatographic column and then enters a detector to be measured, the quality of the carrier gas directly affects the accuracy of the chromatographic analysis data and the service life of the instrument, the accuracy of the chromatographic analysis data is related to the quantity transfer between each process, meanwhile, the economic benefit of enterprises is also concerned.

Before gaseous entering gas chromatograph, generally all need use purifier to purify gas, current purifier structure is comparatively simple, uses a period of back, and is relatively poor to the purifying effect of moisture in the gas, generally all need to dismantle purifier get off and maintain, and the operation is comparatively troublesome, and it is comparatively inconvenient to use.

Based on this, the utility model designs a gas chromatograph carrier gas way pipe purifier to solve the above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a gas chromatograph carrier gas way pipe purifier, absorb moisture through setting up dry subassembly in the drying tube in to gas, carry out dual purification through first purge tube and second purge tube, purifying effect is good, it is very convenient that the drying tube is dismantled simultaneously, be convenient for change the drier in the drying tube, and be connected with the cross on the outlet duct, can connect three gas chromatograph simultaneously and detect, convenient contrast, guarantee the accuracy nature of testing result, with the problem of proposing in solving above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a gas chromatograph carrier gas path pipe purification device comprises a gas storage bottle, a first purification pipe, a drying pipe and a second purification pipe, the right end of the first purifying pipe is sealed, the gas storage cylinder is connected with the right end of the first purifying pipe through a gas inlet pipe, the left end of the first purifying pipe is in threaded connection with the right end of the drying pipe, the left end of the drying pipe is in threaded connection with the right end of the second purifying pipe, the left end of the second purifying pipe is connected with an air outlet pipe, the air outlet pipe is connected with a cross, the other three outlets of the cross are connected with hoses, the hose is connected with three external gas chromatographs, a first filter screen is arranged at the right side in the first purifying pipe, a first active carbon layer is arranged on the left side of the first filter screen, a drying component is arranged in the drying pipe, the right side is equipped with the second filter screen in the second purifying pipe, second filter screen left side is equipped with the second activated carbon layer.

Preferably, the drying assembly comprises a housing, the housing is provided with a plurality of groups of meshes, and the housing is filled with a drying agent.

Preferably, the desiccant is a neutral desiccant, and the desiccant is one of anhydrous calcium chloride or anhydrous copper sulfate.

Preferably, first purge tube left end fixedly connected with first spacing ring, it has first sealed pad to bond on the first spacing ring, the equal fixedly connected with second spacing ring in drying tube both sides is two sets of it has sealed the pad to bond all the second on the second spacing ring, second purge tube right side fixedly connected with third spacing ring, it has sealed the pad to bond the third on the third spacing ring.

Preferably, the second sealing gaskets bonded to the two groups of second limiting rings are in sealing contact with the first sealing gasket and the third sealing gasket respectively.

Preferably, first internal thread section has been opened to first purge tube left end, external screw thread section has all been opened at the drying tube both ends, second purge tube right-hand member is opened has second internal thread section, and is two sets of external screw thread section is respectively with first internal thread section and second internal thread section spiro union.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model is not only novel structure absorbs moisture in the gas through set up dry subassembly in the drying tube, carries out dual purification through first purge tube and second purge tube, and purifying effect is good, and it is very convenient simultaneously to dismantle the drying tube, is convenient for change the drier in the drying tube, and is connected with the cross on the outlet duct, can connect three gas chromatograph simultaneously and detect, and convenient contrast guarantees the accuracy nature of testing result, and it is very convenient to use.

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 introduced below, and it is obvious that the drawings in the following description 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 schematic view of the overall structure of the present invention;

fig. 2 is a schematic view of the structure of the drying tube of the present invention.

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 of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-2, the present invention provides a gas chromatograph carrier gas path tube purification device, which comprises: the gas cylinder comprises a gas cylinder 1, a first purifying pipe 3, a drying pipe 10 and a second purifying pipe 14, wherein the right end of the first purifying pipe 3 is sealed, the gas cylinder 1 is connected with the right end of the first purifying pipe 3 through a gas inlet pipe 2, gas in the gas cylinder 1 enters the first purifying pipe 3 through the gas inlet pipe 2, the left end of the first purifying pipe 3 is in threaded connection with the right end of the drying pipe 10, the left end of the drying pipe 10 is in threaded connection with the right end of the second purifying pipe 14, the drying pipe 10 is convenient to disassemble and assemble, the left end of the second purifying pipe 14 is connected with a gas outlet pipe 15, the gas outlet pipe 15 is connected with a cross 16, the rest three outlets on the cross 16 are connected with hoses 17, the hoses 17 are connected with three external gas chromatographs, three gas chromatographs can be simultaneously connected for detection, the comparison is convenient, the accuracy of a detection result is ensured (the gas chromatographs are not shown in the figure), a first filter screen 4 is arranged, first filter screen 4 left side is equipped with first activated carbon layer 5, and first filter screen 4 and first activated carbon layer 5 all are connected with 3 inner walls of first purge tube, be equipped with dry subassembly 9 in the dry tube 10, the right side is equipped with second filter screen 19 in the second purge tube 14, and second filter screen 19's aperture is less than first filter screen 4's aperture, second filter screen 19 left side is equipped with second activated carbon layer 18, can carry out purification, purifying effect is good to gas many times.

The drying component 9 comprises a shell 91, a plurality of groups of meshes are formed in the shell 91, gas can conveniently pass through the shell 91, a drying agent 92 is filled in the shell 91, the drying agent 92 is a neutral drying agent and is used for preventing the gas from reacting with the drying agent, the drying agent 92 is one of anhydrous calcium chloride or anhydrous copper sulfate, and the drying effect is good.

Wherein, 3 left ends fixedly connected with first spacing rings 7 of first purge tube, it has first sealed pad 8 to bond on the first spacing ring 7, the equal fixedly connected with second spacing ring 20 in drying tube 10 both sides, it is two sets of all bond on the second spacing ring 20 and have the sealed pad 21 of second, 14 right sides fixedly connected with third spacing ring 12 of second purge tube, it has the sealed pad 11 of third, two sets of bond on the third spacing ring 12 the sealed pad 21 of second that bonds on the second spacing ring 20 respectively with first sealed pad 8 and the sealed inter-plate 11 sealing contact of third, guarantee the leakproofness between first purge tube 3, drying tube 10 and the second purge tube 14, prevent gas leakage.

The left end of the first purifying pipe 3 is provided with a first internal thread section 6, the two ends of the drying pipe 10 are provided with external thread sections 22, the right end of the second purifying pipe 14 is provided with a second internal thread section 13, and the external thread sections 22 are in threaded connection with the first internal thread section 6 and the second internal thread section 13 respectively, so that the drying pipe 10 is convenient to detach and mount, and the drying agent 92 is convenient to replace.

The specific working principle is as follows:

when the gas purifying device is used, three groups of hoses 17 on the cross joint 16 are respectively connected with three external gas chromatographs, gas in a gas storage bottle 1 enters a first purifying pipe 3 through a gas inlet pipe 2, the first filter screen 4 primarily filters the gas, the first activated carbon layer 5 adsorbs and filters the gas, the gas enters a drying pipe 10, a drying agent 9 absorbs moisture in the gas, the dried gas enters a second purifying pipe 14, the second filter screen 19 and the second activated carbon layer 18 purify the gas again, the gas is discharged through a gas outlet pipe, after the cross joint 16 is shunted, the gas enters the three external gas chromatographs through the three groups of hoses 17, the gas is subjected to component analysis, after the gas purifying device is used for a period of time, the drying agent 92 needs to be replaced, the first purifying pipe 3 can be rotated, the first purifying pipe 3 is separated from the drying pipe 10, the drying pipe 10 is rotated, after the drying agent is replaced, the drying tube 10 can be rotated, the left second sealing gasket 21 is in sealing contact with the third sealing gasket 11 through the screw connection between the left external thread section 22 and the second purifying tube 14, and then the first purifying tube 3 is rotated, so that the right second sealing gasket 21 is in sealing contact with the first sealing gasket 8, the sealing performance among the first purifying tube 3, the drying tube 10 and the second purifying tube 14 is ensured, and the gas leakage is prevented.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. The utility model provides a gas chromatograph carrier gas way pipe purifier, includes gas bomb (1), first purge tube (3), drying tube (10) and second purge tube (14), its characterized in that: the right end of the first purifying pipe (3) is sealed, the gas storage bottle (1) is connected with the right end of the first purifying pipe (3) through the gas inlet pipe (2), the left end of the first purifying pipe (3) is in threaded connection with the right end of the drying pipe (10), the left end of the drying pipe (10) is in threaded connection with the right end of the second purifying pipe (14), the left end of the second purifying pipe (14) is connected with a gas outlet pipe (15), a cross joint (16) is connected onto the gas outlet pipe (15), other three outlets on the cross joint (16) are connected with hoses (17), the hoses (17) are connected with three external gas chromatographs, a first filter screen (4) is arranged on the right side in the first purifying pipe (3), a first activated carbon layer (5) is arranged on the left side of the first filter screen (4), a drying assembly (9) is arranged in the drying pipe (10), a second filter screen (19) is arranged on the right side in the second purifying pipe (, and a second activated carbon layer (18) is arranged on the left side of the second filter screen (19).

2. The gas chromatograph carrier gas circuit pipe purification device of claim 1, wherein: the drying assembly (9) comprises a shell (91), a plurality of groups of meshes are formed in the shell (91), and a drying agent (92) is filled in the shell (91).

3. A gas chromatograph carrier gas line tube purification device of claim 2, wherein: the drying agent (92) is a neutral drying agent, and the drying agent (92) is one of anhydrous calcium chloride or anhydrous copper sulfate.

4. The gas chromatograph carrier gas circuit pipe purification device of claim 1, wherein: first purge tube (3) left end fixedly connected with first spacing ring (7), it has first sealed pad (8) to bond on first spacing ring (7), the equal fixedly connected with second spacing ring (20) in drying tube (10) both sides, it is two sets of it has the sealed pad (21) of second to bond on second spacing ring (20), second purge tube (14) right side fixedly connected with third spacing ring (12), it has the sealed pad (11) of third to bond on third spacing ring (12).

5. The gas chromatograph carrier gas circuit pipe purification device of claim 4, wherein: and the second sealing gaskets (21) which are bonded on the two groups of second limiting rings (20) are in sealing contact with the first sealing gasket (8) and the third sealing gasket (11) respectively.

6. The gas chromatograph carrier gas circuit pipe purification device of claim 1, wherein: first internal thread section (6) have been opened to first purge tube (3) left end, external screw thread section (22) have all been opened at drying tube (10) both ends, second purge tube (14) right-hand member is opened has second internal thread section (13), and two sets of external screw thread section (22) are respectively with first internal thread section (6) and second internal thread section (13) spiro union.