CN219038934U

CN219038934U - Gas chromatograph for environmental monitoring

Info

Publication number: CN219038934U
Application number: CN202223171499.1U
Authority: CN
Inventors: 刘西国
Original assignee: Shandong Tenghai Analytical Instrument Co ltd
Current assignee: Shandong Tenghai Analytical Instrument Co ltd
Priority date: 2022-11-29
Filing date: 2022-11-29
Publication date: 2023-05-16
Anticipated expiration: 2032-11-29

Abstract

The utility model relates to a gas chromatograph for environmental monitoring, which comprises a gas chromatograph main body, wherein an air inlet hole is formed in one side of the gas chromatograph main body, a first rubber sealing ring is fixedly connected to one side of the gas chromatograph main body, a clamping groove is formed in the gas chromatograph main body, and a dust collecting mechanism is arranged on one side of the gas chromatograph main body. This gas chromatograph that environmental monitoring used, dust collection box are pegged graft and joint with the gas chromatograph main part through inserted block and draw-in groove, and the back is opened to the admission valve in the gas chromatograph main part, and gas enters into the inside of dust collection box through the mesh plate, contacts with the filter screen plate, and dust in the gas is intercepted by the filter screen plate, and the gas of filtered dust enters into the inside of gas chromatograph main part through connecting hole and inlet port, and work flow is simple, and the structure that involves is few, because the dust collection box is transparent box body, so be convenient for look over the service condition of filter screen plate.

Description

Gas chromatograph for environmental monitoring

Technical Field

The utility model relates to the technical field of environmental monitoring, in particular to a gas chromatograph for environmental monitoring.

Background

The gas chromatograph is a chromatographic analysis instrument using gas as a mobile phase, and the principle of the gas chromatograph is to realize separation of a mixture by mainly utilizing differences of boiling points, polarities and adsorption properties of substances.

For example, in chinese patent CN212364200U, a gas chromatograph with dust collecting structure is proposed, which solves the problems that the gas chromatograph that appears in the market at present has no special dust collecting mechanism, large particles in the meaning of air and sample can adhere to the sample inlet pipe, the quantitative ring of the sample injector and the sample inlet, so as to pollute the pipe, the quantitative ring and the sample inlet, even pollute the chromatographic column, cause unstable analysis results, tailing out of chromatographic peaks, and out of double-headed peaks, but only aims to solve the dust collecting problem, and the structure related to adopting the dust collecting device and the filtering device is too many, so that the manufacturing cost is high, and the real-time use condition of the filter screen is not prompted in real time, so that the time of cleaning and replacing the filter screen is not known, so that the gas chromatograph for environmental monitoring is proposed to solve the problems.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides a gas chromatograph for environmental monitoring, which has the advantages of simple structure and capability of knowing the real-time use condition of a filter screen, and solves the problems that the gas chromatograph with a dust collection structure is provided in Chinese patent CN212364200U, for example, although the gas chromatograph does not have a special dust collection mechanism, large particle foreign matters in air and samples can adhere to a sample inlet pipeline, a quantitative ring and a sample inlet of a sample injector and the like so as to pollute the pipeline, the quantitative ring and the sample inlet and even pollute a chromatographic column, the analysis result is unstable, the chromatographic peak is trailing, the double-head peak is generated and the like, but only aims at solving the dust collection problem, and the problems that the structure related to adopting a dust collection device and a filtering device is excessive, so that the manufacturing cost is high, and the real-time use condition of the filter screen is not suggested, and the filter screen is not known when cleaning and replacing are needed.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the gas chromatograph for environmental monitoring comprises a gas chromatograph main body, wherein an air inlet hole is formed in one side of the gas chromatograph main body, a first rubber sealing ring is fixedly connected to one side of the gas chromatograph main body, a clamping groove is formed in the gas chromatograph main body, and a dust collecting mechanism is arranged on one side of the gas chromatograph main body;

the dust collection mechanism comprises a dust collection box, one side of the gas chromatograph main body is movably connected with the dust collection box, one side of the dust collection box is fixedly connected with an inserting block, the inside of the dust collection box is movably connected with a mesh plate, a socket is formed in the inside of the dust collection box, a slot is formed in the inside of the dust collection box, a connecting hole is formed in the inside of the dust collection box, one side of the dust collection box is fixedly connected with a second rubber sealing ring, the inside of the dust collection box is movably connected with a filter screen plate, and one side of the filter screen plate is fixedly connected with a plate cover.

Further, the air inlet is positioned at one side of the gas chromatograph main body close to the dust collection box, and the first rubber sealing ring is positioned at the outer side of the air inlet.

Further, the insert block is inserted into and clamped with the clamping groove, and the dust collecting box is inserted into and clamped with the gas chromatograph main body through the insert block and the clamping groove.

Further, the positions of the air inlet holes and the connecting holes are consistent and communicated, and the positions of the first rubber sealing ring and the second rubber sealing ring are consistent and attached.

Further, mesh board and dust collection box joint, the mesh board is located the dust collection box and keeps away from one side of gas chromatograph main part, the socket is linked together with the slot.

Further, the filter screen plate is inserted into the slot, and the filter screen plate is inserted into the gas chromatograph main body through the slot.

Further, the dust collection box is a transparent box body, and the plate cover is positioned outside the gas chromatograph main body.

Compared with the prior art, the technical scheme of the application has the following beneficial effects:

1. this gas chromatograph that environmental monitoring used, dust collection box are pegged graft and joint with the gas chromatograph main part through inserted block and draw-in groove, and the back is opened to the admission valve in the gas chromatograph main part, and gas enters into the inside of dust collection box through the mesh plate, contacts with the filter screen plate, and dust in the gas is intercepted by the filter screen plate, and the gas of filtered dust enters into the inside of gas chromatograph main part through connecting hole and inlet port, and work flow is simple, and the structure that involves is few, because the dust collection box is transparent box body, so be convenient for look over the service condition of filter screen plate.

2. When the filter screen plate needs to be replaced, the gas chromatograph for environmental monitoring can be pulled out from the inside of the slot through the plate cover and through the socket, and the mesh plate is taken out from the dust collecting box, so that the collected dust in the dust collecting box can be cleaned.

Drawings

FIG. 1 is a schematic view of a three-dimensional structure of the present utility model;

FIG. 2 is a schematic view of the dust collecting box of the present utility model;

FIG. 3 is a schematic side cross-sectional view of the dust box of the present utility model;

fig. 4 is a schematic diagram of a structure of a filter screen according to the present utility model.

In the figure: the gas chromatograph comprises a gas chromatograph main body, a 2 air inlet, a 3 first rubber sealing ring, a 4 clamping groove, a 5 dust collecting mechanism, a 501 dust collecting box, a 502 inserting block, a 503 mesh plate, a 504 inserting opening, a 505 inserting groove, a 506 connecting hole, a 507 second rubber sealing ring, a 508 filter screen plate and a 509 plate cover.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, the gas chromatograph for environmental monitoring disclosed by the utility model comprises a gas chromatograph main body 1, wherein one side of the gas chromatograph main body 1 is provided with an air inlet hole 2, the air inlet hole 2 is positioned on one side of the gas chromatograph main body 1 close to a dust collection box 501, the air inlet hole 2 is consistent with and communicated with a connecting hole 506, one side of the gas chromatograph main body 1 is fixedly connected with a first rubber sealing ring 3, the first rubber sealing ring 3 is consistent with and attached to a second rubber sealing ring 507, gas leakage between the air inlet hole 2 and the connecting hole 506 can be prevented, the first rubber sealing ring 3 is positioned on the outer side of the air inlet hole 2, a clamping groove 4 is formed in the gas chromatograph main body 1, and one side of the gas chromatograph main body 1 is provided with a dust collection mechanism 5.

In fig. 1 and 2, a dust collecting box 501 is movably connected to one side of a gas chromatograph main body 1, and the dust collecting box 501 is a transparent box body, so that the use condition of a filter screen 508 is convenient to check, an insert block 502 is fixedly connected to one side of the dust collecting box 501, and the dust collecting box 501 is inserted into and clamped with the gas chromatograph main body 1 through the insert block 502 and a clamping groove 4.

In fig. 1, 2 and 3, the inside of the dust box 501 is movably connected with a mesh plate 503, the mesh plate 503 is clamped with the dust box 501, the mesh plate 503 is located at one side of the dust box 501 away from the gas chromatograph main body 1, and after an air inlet valve in the gas chromatograph main body 1 is opened, air enters into the dust box 501 through the mesh plate 503.

In fig. 3, a socket 504 is formed in the dust box 501, a slot 505 is formed in the dust box 501, and the socket 504 is communicated with the slot 505 for inserting a filter screen 508.

In fig. 3, a connection hole 506 is formed in the dust collecting box 501, and the gas of the filtered dust enters the gas chromatograph main body 1 through the connection hole 506 and the gas inlet hole 2, and a second rubber sealing ring 507 is fixedly connected to one side of the dust collecting box 501.

In fig. 1, 2 and 4, the dust collecting box 501 is movably connected with a filter screen 508, the filter screen 508 is inserted into the gas chromatograph main body 1 through a slot 505, dust in gas is intercepted by the filter screen 508, one side of the filter screen 508 is fixedly connected with a plate cover 509, and the plate cover 509 is positioned outside the gas chromatograph main body 1.

To sum up, this gas chromatograph for environmental monitoring, dust collection box 501 is pegged graft and the joint with gas chromatograph main part 1 through inserted block 502 and draw-in groove 4, after the admission valve in the gas chromatograph main part 1 was opened, gas entered into the inside of dust collection box 501 through mesh board 503, contact with filter screen board 508, the dust in the gas is intercepted by filter screen board 508, the gas of filtered dust enters into the inside of gas chromatograph main part 1 through connecting hole 506 and inlet port 2, the work flow is simple, the structure that involves is few, because dust collection box 501 is transparent box body, so be convenient for look over the service condition of filter screen board 508.

When the filter screen plate 508 is replaced, the plate cover 509 is pulled out from the inside of the slot 505 through the insertion opening 504, and the mesh plate 503 is taken out from the dust box 501, so that the dust collected in the dust box 501 can be cleaned.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Gas chromatograph for environmental monitoring, including gas chromatograph main part (1), its characterized in that: an air inlet hole (2) is formed in one side of the gas chromatograph main body (1), a first rubber sealing ring (3) is fixedly connected to one side of the gas chromatograph main body (1), a clamping groove (4) is formed in the gas chromatograph main body (1), and a dust collecting mechanism (5) is arranged on one side of the gas chromatograph main body (1);

the dust collection mechanism (5) comprises a dust collection box (501), one side swing joint of gas chromatograph main body (1) has dust collection box (501), one side fixedly connected with inserted block (502) of dust collection box (501), inside swing joint of dust collection box (501) has mesh board (503), socket (504) have been seted up to the inside of dust collection box (501), slot (505) have been seted up to the inside of dust collection box (501), connecting hole (506) have been seted up to the inside of dust collection box (501), one side fixedly connected with second rubber seal (507) of dust collection box (501), inside swing joint of dust collection box (501) has filter screen board (508), one side fixedly connected with board lid (509) of filter screen board (508).

2. The gas chromatograph for environmental monitoring of claim 1, wherein: the gas chromatograph comprises a gas chromatograph main body (1), a dust collection box (501) and a first rubber sealing ring (3), wherein the gas inlet (2) is arranged on one side of the gas chromatograph main body (1) close to the dust collection box, and the first rubber sealing ring (3) is arranged on the outer side of the gas inlet (2).

3. The gas chromatograph for environmental monitoring of claim 1, wherein: the insert block (502) is inserted into and clamped with the clamping groove (4), and the dust collection box (501) is inserted into and clamped with the gas chromatograph main body (1) through the insert block (502) and the clamping groove (4).

4. The gas chromatograph for environmental monitoring of claim 1, wherein: the positions of the air inlet holes (2) are consistent with and communicated with the positions of the connecting holes (506), and the positions of the first rubber sealing rings (3) and the second rubber sealing rings (507) are consistent and attached.

5. The gas chromatograph for environmental monitoring of claim 1, wherein: the mesh plate (503) is clamped with the dust box (501), the mesh plate (503) is positioned on one side, far away from the gas chromatograph main body (1), of the dust box (501), and the socket (504) is communicated with the slot (505).

6. The gas chromatograph for environmental monitoring of claim 1, wherein: the filter screen plate (508) is inserted into the slot (505), and the filter screen plate (508) is inserted into the gas chromatograph main body (1) through the slot (505).

7. The gas chromatograph for environmental monitoring of claim 1, wherein: the dust collection box (501) is a transparent box body, and the plate cover (509) is positioned outside the gas chromatograph main body (1).