CN217410111U

CN217410111U - Gas filtering device for nitrogen cylinder

Info

Publication number: CN217410111U
Application number: CN202221395532.6U
Authority: CN
Inventors: 王艳杰; 顿温馨; 汪宇凡; 李俊杰
Original assignee: Xianghe Kunlun New Energy Materials Co ltd
Current assignee: Xianghe Kunlun New Energy Materials Co ltd
Priority date: 2022-06-06
Filing date: 2022-06-06
Publication date: 2022-09-13
Anticipated expiration: 2032-06-06

Abstract

The utility model discloses a gas filtering device for a nitrogen cylinder, which relates to the technical field of filtering devices and comprises an open type filtering tank and the nitrogen cylinder for installing the filtering tank, wherein the outer surface of the filtering tank is rotatably provided with two connecting strips, and the two connecting strips are embedded on the outer surface of the filtering tank and are connected through a locking component; the filtering tank is characterized in that a tank cover is inserted at the top of the filtering tank, a locking ring is sleeved at the joint of the tank cover and the filtering tank in a threaded manner, the top of the tank cover and the top of the filtering tank are both connected with air guide pipes, and the two air guide pipes are connected through a flange plate. The utility model discloses a cross mutually supporting between filter tank, connecting strip, locking Assembly, air guide ring, the cotton layer of filtration and the drier layer, nitrogen gas gets into in the filter tank through the air duct in the nitrogen cylinder, then filters through filtering cotton layer and drier and discharges through the outlet duct again, utilizes and filters cotton layer and drier layer and can not only filter impurity in the gas and can also reduce moisture in the gas, the good operation of guarantee experimental apparatus and equipment.

Description

Gas filtering device for nitrogen cylinder

Technical Field

The utility model relates to a filter equipment technical field especially relates to a gas filtering device for nitrogen cylinder.

Background

The nitrogen is in the form of simple substance of nitrogen, is the gas with the highest proportion in the earth atmosphere, is not combustible and can not support combustion, is cheap and stable protective gas, can be used for simple protective atmosphere during metal refining and high-temperature synthesis, and is also used for agriculture, such as nitrogen fertilizer.

In addition, nitrogen gas also is a gas that needs to be used in the laboratory often, uses nitrogen gas mostly to be bottled nitrogen gas at laboratory and production line at present, transports convenient and easily save, however, because lack effective gas filtration device on some nitrogen gas bottles of current, deposit in some impurity and moisture etc. in the gas easily along with gas synchronous entering experimental facilities, easily cause the damage to experimental facilities in the past for a long time.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem that impurity and moisture in the gas easily get into the experimental equipment and cause the damage to the experimental equipment because of lacking effective gas filtering device on the nitrogen gas bottle among the prior art, and the gas filtering device for nitrogen gas bottle who provides.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a gas filtering device for a nitrogen cylinder comprises an open type filtering tank and the nitrogen cylinder for mounting the filtering tank, wherein two connecting strips are rotatably mounted on the outer surface of the filtering tank, embedded on the outer surface of the filtering tank and connected through a locking assembly; the filter tank is characterized in that a tank cover is inserted at the top of the filter tank, a locking ring is sleeved at the joint of the tank cover and the filter tank in a threaded manner, the top of the tank cover and the top of the filter tank are both connected with air guide pipes, the air guide pipes are connected through a flange plate, the bottom of the filter tank is in a penetrating connection with an air outlet pipe, an air guide ring is fixedly connected to the inner surface of the filter tank, and a filter cotton layer and a drying agent layer are sequentially arranged on the upper surface of the air guide ring.

In order to facilitate the rotating installation of the connecting strips, the outer surface of the filter tank is fixedly connected with a U-shaped seat, a pin shaft is rotatably installed on the inner side wall of the U-shaped seat, and the two connecting strips are respectively and fixedly sleeved on the outer surfaces of the pin shafts.

In order to realize the detachable connection between two connecting strips, the locking assembly comprises locking strips fixedly connected to the end portions of the connecting strips, locking rods are arranged between the locking strips in a penetrating and inserting mode, locking nuts are arranged on the opposite sides of the locking strips, and the locking nuts are sleeved on the outer surfaces of the locking rods in a threaded mode.

In order to prevent the connecting strip from shaking up and down along the nitrogen cylinder, the outer surface of the nitrogen cylinder is fixedly sleeved with two fixing rings which are arranged up and down, and the connecting strip is located between the two fixing rings.

In order to improve the leakproofness of cover and filtration jar junction, cover bottom fixedly connected with rubber circle, filter tank deck portion inner wall seted up with the annular caulking groove of rubber circle looks adaptation.

In order to realize the threaded connection of the locking ring, the tank cover and the filter tank, the inner wall of the locking ring is provided with internal threads, and the outer wall of the bottom of the tank cover and the outer wall of the top of the filter tank are both provided with external threads matched with the internal threads.

The utility model discloses following beneficial effect has:

1. compared with the prior art, this a gaseous filter equipment for nitrogen cylinder, through filtering jar, connecting strip, locking Assembly, air guide ring, filtering mutually supporting between cotton layer and the drier layer, nitrogen gas gets into in the filtration jar through the air duct in the nitrogen cylinder, then filters through filtering cotton layer and drier and then discharges through the outlet duct, utilizes the impurity that filters in cotton layer and the drier layer can not only the filtered gas can also reduce the moisture in the gas, ensures the good operation of experimental apparatus and equipment.

2. Compared with the prior art, this a gas filtration device for nitrogen cylinder through filtering mutually supporting between jar, cover, locking ring and the rubber circle, both can guarantee to filter the leakproofness that jar and cover are connected, also can dismantle the cover simultaneously to dismantle the cotton layer of filtration and drier layer and clear up or change.

Drawings

Fig. 1 is a schematic view of a first view structure of a gas filtering device for a nitrogen gas cylinder according to the present invention;

FIG. 2 is a schematic diagram of a second view angle of the gas filtering device for a nitrogen cylinder according to the present invention;

FIG. 3 is a schematic view of the connection structure of the filter tank, the connecting strip and the locking assembly in the gas filtering device for the nitrogen gas cylinder according to the present invention;

fig. 4 is a cross-sectional view of a filter tank and a tank cover in the gas filtering device for a nitrogen gas tank of the present invention.

Illustration of the drawings:

1. a filter tank; 2. a nitrogen gas cylinder; 3. a connecting strip; 4. a can lid; 5. locking a ring; 6. an air duct; 7. a flange plate; 8. an air outlet pipe; 9. a gas guide ring; 10. a filter cotton layer; 11. a desiccant layer; 12. a U-shaped seat; 13. a locking strip; 14. a locking lever; 15. a fixing ring; 16. a rubber ring; 17. an annular caulking groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely 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 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.

Referring to fig. 1-4, the utility model provides a pair of a gas filtering device for nitrogen cylinder: the filter tank comprises an open filter tank 1 and a nitrogen bottle 2 for mounting the filter tank 1, wherein two connecting strips 3 are rotatably mounted on the outer surface of the filter tank 1, a U-shaped seat 12 is fixedly connected to the outer surface of the filter tank 1, a pin shaft is rotatably mounted on the inner side wall of the U-shaped seat 12, the two connecting strips 3 are respectively and fixedly sleeved on the outer surfaces of the two pin shafts, and the two connecting strips 3 are embedded on the outer surface of the filter tank 1 and connected through a locking assembly; locking Assembly includes the locking strip 13 of fixed connection at 3 tip of connecting strip, it is equipped with the check lock lever 14 to run through to insert between two locking strips 13, two locking strips 13 all are equipped with lock nut in the back of the body one side that carries on the back mutually, lock nut screw cup joints at check lock lever 14 surface, utilize two lock nut can support the position of check lock lever 14 and check lock bar 13 tightly, prevent that check lock lever 14 from breaking away from between check lock bar 13, nitrogen gas finishes using back in nitrogen gas bottle 2, still can dismantle check lock bar 13 from nitrogen gas bottle 2, make this filter equipment can match different nitrogen gas bottles 2 uses, nitrogen gas bottle 2 fixed surface cover has two solid fixed rings 15 of range from top to bottom, two connecting strips 3 all are located between two solid fixed rings 15, gu fixed ring 15 is located the upper and lower both sides of connecting strip 3, can carry on spacingly to connecting strip 3, prevent that connecting strip 3 from rocking.

Wherein, filter 1 top of jar and be equipped with

cover

4, 4 bottom fixedly connected with rubber circles 16 of cover, filter 1 top inner wall of jar and offer the annular caulking groove 17 with 16 looks adaptations of rubber circle, cover 4 has cup jointed locking ring 5 with filter 1 junction screw thread, the locking ring 5 inner wall is equipped with the internal thread, cover 4 bottom outer wall all is equipped with the external screw thread with internal thread looks adaptations with filter 1 top outer wall of jar, cup joint locking ring 5 screw thread at cover 4 with filter 1 junction, can guarantee the leakproofness and the compactness of junction.

Wherein, 4 tops of cover and filter jar 1 tops all are connected with the air duct 6, two air ducts 6 pass through ring flange 7 and connect, filter 1 bottom through connection of jar has outlet duct 8, filter 1 internal surface fixed connection of jar lead the gas ring 9, lead the gas ring 9 upper surface and have set up in proper order and filter cotton layer 10 and drier layer 11, utilize the impurity in the cotton layer 10 adsorbable gas of filtration, and the moisture in the 11 adsorbable gases of drier layer, can reduce the influence of impurity and moisture in the gas to experimental facilities and device greatly like this.

The utility model discloses its functional principle is explained to following mode of operation of accessible:

during the use with two connecting strips 3 inlay and establish between two solid fixed ring 15, pass two locking strip 13 and from both sides screw in lock nut with check lock lever 14, until lock nut with locking strip 13 locking, accomplish the fixed of filter tank 1, utilize ring flange 7 cooperation bolt to fix two air ducts 6 again, when gaseous discharge in the nitrogen cylinder 2, at first in getting into filter tank 1 through air duct 6, filter cotton layer 10 and drier layer 11 can absorb impurity and moisture in the gas respectively, gaseous through 8 outside discharges of outlet duct again after the filtration, moisture and impurity in the reducible nitrogen gas like this are to experimental facilities's influence.

When the filtering cotton layer 10 and the drying agent layer 11 need to be cleaned or replaced, the locking ring 5 is rotated to remove the locking ring 5 from the joint of the filtering tank 1 and the tank cover 4, the filtering tank 1 is separated from the tank cover 4, the filtering cotton layer 10 and the drying agent layer 11 are taken out for cleaning or replacement, the rubber ring 16 is embedded into the annular caulking groove 17 after the cleaning or replacement is finished, and the locking ring 5 is screwed to the joint of the filtering tank 1 and the tank cover 4 again.

Finally, it should be noted that: 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 and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides a gas filtering device for nitrogen cylinder, includes uncovered formula filter tank and is used for installing the nitrogen cylinder of filter tank, its characterized in that: the outer surface of the filter tank is rotatably provided with two connecting strips, and the two connecting strips are embedded in the outer surface of the filter tank and are connected through a locking assembly;

a tank cover is inserted at the top of the filter tank, a locking ring is sleeved at the joint of the tank cover and the filter tank through threads, the top of the tank cover and the top of the filter tank are both connected with gas guide pipes, the two gas guide pipes are connected through a flange plate, and the bottom of the filter tank is connected with a gas outlet pipe in a penetrating manner;

the filter tank is characterized in that the inner surface of the filter tank is fixedly connected with an air guide ring, and a filter cotton layer and a drying agent layer are sequentially arranged on the upper surface of the air guide ring.

2. The gas filtering device for a nitrogen gas cylinder according to claim 1, characterized in that: the outer surface of the filter tank is fixedly connected with a U-shaped seat, a pin shaft is rotatably installed on the inner side wall of the U-shaped seat, and the two connecting strips are respectively and fixedly sleeved on the outer surfaces of the two pin shafts.

3. The gas filtering device for a nitrogen gas cylinder according to claim 1, characterized in that: the locking assembly comprises locking strips fixedly connected to the end portions of the connecting strips, locking rods are arranged between the two locking strips in a penetrating and inserting mode, locking nuts are arranged on the two opposite sides of the two locking strips, and the locking nuts are sleeved on the outer surfaces of the locking rods in a threaded mode.

4. The gas filtering device for a nitrogen gas cylinder according to claim 1, characterized in that: the outer surface of the nitrogen cylinder is fixedly sleeved with two fixing rings which are arranged up and down, and the connecting strips are located between the two fixing rings.

5. The gas filtering device for a nitrogen gas cylinder according to claim 1, characterized in that: the cover bottom fixedly connected with rubber circle, filter tank deck portion inner wall and set up the annular caulking groove with rubber circle looks adaptation.

6. The gas filtering device for a nitrogen gas cylinder according to claim 1, characterized in that: the locking ring inner wall is equipped with the internal thread, cover bottom outer wall all is equipped with the external screw thread with internal thread looks adaptation with filtering jar top outer wall.