CN219333574U

CN219333574U - Sampling filter of gas analyzer

Info

Publication number: CN219333574U
Application number: CN202223287602.9U
Authority: CN
Inventors: 杨维维; 马兴忠
Original assignee: Xinjiang Fanlin Instrument Co ltd
Current assignee: Xinjiang Fanlin Instrument Co ltd
Priority date: 2022-12-07
Filing date: 2022-12-07
Publication date: 2023-07-14
Anticipated expiration: 2032-12-07

Abstract

The utility model discloses a sampling filter of a gas analyzer, which comprises a cylinder, wherein a valve is arranged at the bottom end of the cylinder, a first spring is arranged in the cylinder, a first filtering unit is arranged above the first spring, a second spring is arranged above the first filtering unit, a second filtering unit is arranged above the second spring, a third spring is arranged above the second filtering unit, a piston is arranged above the third spring, a rubber plug is embedded in the center of the piston, and the piston is in sliding connection with the cylinder; according to the utility model, through the matched use of the first spring, the second spring, the third spring, the first filtering unit and the like, required gas can be stored in the cylinder body at first when the gas analyzer is used, and then the gas analyzer is matched with the gas analyzer, so that the detection process can be realized; through the first filter unit, the second filter unit that set up, can filter dust and moisture in the gas, guarantee the degree of accuracy when gas detection.

Description

Sampling filter of gas analyzer

Technical Field

The utility model belongs to the technical field of sampling filters, and particularly relates to a sampling filter of a gas analyzer.

Background

The gas analyzer is a flow analysis meter that measures a gas component. A thermal conductivity type gas analyzer, an electrochemical type gas analyzer, an infrared absorption type analyzer, etc., are commonly used, wherein according to a patent document of an air filter for a sampling device of a gas analyzer, the patent document has an authorized publication number CN209108824U, it discloses: the water draining device comprises an air outlet connector, a connecting cylinder and a draining plug cover, wherein the connecting cylinder connects the air outlet connector with the draining plug cover; a filter screen support and a filter membrane are sequentially arranged between the air outlet connector and the connecting cylinder; the air outlet joint is provided with a locking nut so as to fixedly connect the air outlet joint and the connecting cylinder; the novel water drainage plug is simple in structure, convenient to use and capable of effectively improving monitoring accuracy and prolonging service life; but it has the following drawbacks:

although the gas filtering device can realize the gas filtering effect, the gas sampling and storing can not be realized independently, and the application range is reduced.

Disclosure of Invention

Aiming at the situation, in order to overcome the defects of the prior art, the utility model provides the sampling filter of the gas analyzer, which effectively solves the problems that although the filtering effect on the gas can be realized, the sampling storage on the gas can not be realized independently, and the using range is reduced.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a sampling filter of gas analysis appearance, includes the barrel, the bottom of barrel is provided with the valve, and the inside of barrel is provided with first spring, and the top of first spring is provided with first filter unit, and the top of first filter unit is provided with the second spring, and the top of second spring is provided with the second filter unit, and the top of second filter unit is provided with the third spring, and the top of third spring is provided with the piston, and the center department of piston inlays and is equipped with the rubber buffer, piston and barrel sliding connection.

Preferably, the first filtering unit comprises two first compression rings, the two first compression rings are provided with first grooves, first mounting plates are arranged in the two first grooves, and a waterproof breathable film is fixedly connected to the center of each first mounting plate.

Preferably, the second filtering unit comprises two second compression rings, the two second compression rings are provided with second grooves, and the two second grooves are internally provided with filter elements.

Preferably, the filter element is a circular sponge block, and a drying agent is embedded in the sponge block.

Preferably, the inner wall of the cylinder body is provided with a screw groove, the screw groove is internally connected with a cover plate in a threaded manner, and the valve is arranged at the center of the cover plate.

Preferably, an annular groove is formed in the outer wall of the piston, and a sealing ring is arranged in the annular groove.

Compared with the prior art, the utility model has the beneficial effects that:

1) In operation, through the matched use of the first spring, the second spring, the third spring, the first filtering unit and the like, required gas can be stored in the cylinder body at first when the gas analyzer is used, and then the gas analyzer is matched with the gas analyzer to realize the detection process;

2) In work, through the first filtration unit, the second filtration unit that set up, can filter dust and moisture in the gas, guarantee the degree of accuracy when the gas detects, simultaneously through the apron of setting, be convenient for change the part in the barrel, it is comparatively convenient.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:

FIG. 1 is a schematic diagram of a sampling filter of a gas analyzer according to the present utility model;

FIG. 2 is a schematic view of a first press ring mounting structure according to the present utility model;

FIG. 3 is a schematic view of a second press ring mounting structure according to the present utility model;

FIG. 4 is a schematic diagram of a piston structure according to the present utility model;

fig. 5 is an enlarged schematic view of the structure of fig. 1 a according to the present utility model.

In the figure: 1. a cylinder; 101. a screw groove; 102. a cover plate; 2. a valve; 3. a first spring; 4. a first press ring; 401. a first groove; 402. a first mounting plate; 5. a second spring; 6. a second press ring; 601. a second groove; 602. a filter element; 7. a third spring; 8. a piston; 801. an annular groove; 802. and (3) sealing rings.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model; 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.

The first embodiment is given by fig. 1-5, the utility model relates to a sampling filter of a gas analyzer, which comprises a cylinder 1, wherein the bottom end of the cylinder 1 is provided with a valve 2, a first spring 3 is arranged in the cylinder 1, a first filtering unit is arranged above the first spring 3, a second spring 5 is arranged above the first filtering unit, a second filtering unit is arranged above the second spring 5, a third spring 7 is arranged above the second filtering unit, a piston 8 is arranged above the third spring 7, an annular groove 801 is formed in the outer wall of the piston 8, a sealing ring 802 is arranged in the annular groove 801, a rubber plug is embedded in the center of the piston 8, and the piston 8 is in sliding connection with the cylinder 1;

when the sampling device is used, when gas is required to be sampled, the valve 2 is opened, then the piston 8 is pushed by a tool, the piston 8 extrudes the second filtering unit through the third spring 7, the second filtering unit extrudes the first filtering unit through the second spring 5, the first filtering unit extrudes the first spring 3, so that air in the cylinder 1 is discharged, then the tool is loosened, under the elastic action, the outside air enters the cylinder 1 in a negative pressure mode, during the process, the gas is filtered by the first filtering unit and the second filtering unit respectively, dust and moisture in the gas are removed, and then the valve 2 is closed, so that the sampling of the gas can be completed;

when the gas analyzer is used for detecting, the other end of the cannula is connected with the gas analyzer only by inserting the cannula into the rubber plug at the center of the piston 8, and then the piston 8 is pushed by a tool, so that the gas in the cylinder 1 enters the gas analyzer through the cannula for detecting.

Specifically, the first filtering unit comprises two first compression rings 4, first grooves 401 are formed in the two first compression rings 4, first mounting plates 402 are arranged in the two first grooves 401, and a waterproof and breathable film is fixedly connected to the center of each first mounting plate 402; the water in the gas can be filtered through the waterproof breathable film, and meanwhile, the gas can be guaranteed to pass through.

Specifically, the second filter unit includes two second clamping rings 6, has all seted up second recess 601 on two second clamping rings 6, is provided with filter core 602 in two second recesses 601, and filter core 602 is circular shape sponge piece, and the inside of sponge piece inlays and has been equipped with the drier, and the drier can not influence gas, just does not set up the drier if producing the influence, can filter dust and moisture in the gas through the sponge piece, and the use of cooperation drier can improve the filter effect to moisture.

Specifically, a screw groove 101 is formed in the inner wall of the cylinder body 1, a cover plate 102 is connected in the screw groove 101 in a threaded manner, and a valve 2 is arranged in the center of the cover plate 102; when the parts in the cylinder 1 need to be replaced, the cover plate 102 is separated from the screw groove 101, and then the parts in the cylinder 1 can be taken out for replacement.

Claims

1. The utility model provides a sampling filter of gas analysis appearance, includes barrel (1), its characterized in that, the bottom of barrel (1) is provided with valve (2), and the inside of barrel (1) is provided with first spring (3), and the top of first spring (3) is provided with first filter unit, and the top of first filter unit is provided with second spring (5), and the top of second spring (5) is provided with second filter unit, and the top of second filter unit is provided with third spring (7), and the top of third spring (7) is provided with piston (8), and the center department of piston (8) inlays and is equipped with the rubber stopper, piston (8) and barrel (1) sliding connection.

2. A sampling filter for a gas analyzer as defined in claim 1, wherein: the first filter unit comprises two first compression rings (4), first grooves (401) are formed in the two first compression rings (4), first mounting plates (402) are arranged in the two first grooves (401), and waterproof and breathable films are fixedly connected to the center of each first mounting plate (402).

3. A sampling filter for a gas analyzer as defined in claim 1, wherein: the second filter unit comprises two second compression rings (6), second grooves (601) are formed in the two second compression rings (6), and filter cores (602) are arranged in the two second grooves (601).

4. A sampling filter for a gas analyzer according to claim 3, wherein: the filter element (602) is a round sponge block, and a drying agent is embedded in the sponge block.

5. A sampling filter for a gas analyzer as defined in claim 1, wherein: the inner wall of the cylinder body (1) is provided with a screw groove (101), the screw groove (101) is internally connected with a cover plate (102) in a threaded manner, and the valve (2) is arranged at the center of the cover plate (102).

6. A sampling filter for a gas analyzer as defined in claim 1, wherein: an annular groove (801) is formed in the outer wall of the piston (8), and a sealing ring (802) is arranged in the annular groove (801).