CN101632886B

CN101632886B - Filtering device for high-pressure gas pipeline

Info

Publication number: CN101632886B
Application number: CN2009101013718A
Authority: CN
Inventors: 高泽普
Original assignee: NINGBO XINGJIAN SPACE MANUFACTORY
Current assignee: Star Arrow Technology Co ltd
Priority date: 2009-07-30
Filing date: 2009-07-30
Publication date: 2011-06-15
Anticipated expiration: 2029-07-30
Also published as: CN101632886A

Abstract

The invention relates to a filtering device for a high-pressure gas pipeline, which comprises a shell, a joint and a filter element, wherein the filter element is arranged in the shell; the joint is connected to one end of the shell; one end of the filter element is connected with one end of the joint extending in the shell; other parts of the filter element are suspended in the shell; the filter element comprises a first framework, a filter screen and a first protecting screen; the filter screen is sleeved outside the first framework; the first protecting screen is sleeved outside the filter screen; a hole for circulating gases is arranged in the first framework; the filter element also comprises a second framework and a second protecting screen; the second protecting screen is sleeved between the filter screen and the first framework; the second framework is sleeved outside the first protecting screen; and a hole is arranged on the second framework and is coaxial with the hole in the first framework. The invention has the advantages that a layer of filter screen is added between the two protecting screens, two layers of frameworks are arranged in the inner part and the outer part, the structure protects the filter screen from inside to outside, even if the device is reversely installed or generates reverse flow of the high-pressure gas, the inner filter screen can not be damaged, and the damage to the filter screen by the impact of reverse gases is thoroughly prevented.

Description

Filtering device for high-pressure gas pipeline

Technical field

The present invention relates to a kind of filter, specifically is a kind of filtering device for high-pressure gas pipeline.

Background technology

In the high-pressure gas pipeline system, integrated various high-pressure fluid medium control elements, system's operate as normal requires the high-pressure gas medium cleaning, does not have or reduce as far as possible the content of solia particle in the medium.In addition, most of gas consuming device equipment also need to use clean working media.Therefore, need the filtering device for high-pressure gas pipeline of configuration One's name is legion in the high-pressure gas pipeline system.As Fig. 1, Fig. 2 and shown in Figure 3; existing filtering device for high-pressure gas pipeline comprises housing, joint and is located at the interior filter core of housing; described joint is connected housing one end; the end that one end and the joint of described filter core stretches into housing is connected; the remainder of described filter core is unsettled in housing; described filter core comprises skeleton, filter screen and catch net, and described filter screen set is connected on outside the skeleton, and described catch net is socketed in outside the filter screen.During use, only allow gas unidirectional circulation, promptly the circulating direction of gas must be consistent with the direction that marked on the housing.If oppositely install or generation gases at high pressure reverse flow, as positions such as cylinder filling, gas consuming devices, the screen pack of existing filtering device for high-pressure gas pipeline is easy to breakage under the impact of high back voltage gas, loses original filtration.

Summary of the invention

Technical problem to be solved by this invention is that a kind of filtering device for high-pressure gas pipeline of avoiding in the impact lower filter screen breakage of reverse gas is provided.

For solving the problems of the technologies described above; filtering device for high-pressure gas pipeline provided by the invention comprises housing; joint and the filter core that is located in the housing; described joint is connected housing one end; the end that one end and the joint of described filter core stretches into housing is connected; the remainder of described filter core is unsettled in housing; described filter core comprises first skeleton; the filter screen and first catch net; described filter screen set is connected on outside first skeleton; described first catch net is socketed in outside the filter screen; the hole that the supplied gas circulation is arranged on described first skeleton; described filter core also comprises second skeleton and second catch net; described second catch net is socketed between the filter screen and first skeleton; described second skeleton is socketed in outside first catch net, and described second skeleton is provided with the hole, and the hole on the described hole and first skeleton is coaxially set.

After adopting above structure, filtering device for high-pressure gas pipeline of the present invention compared with prior art has the following advantages:

Add one deck filter screen in the middle of the two-layer catch net; and then at the two-layer skeleton of interior peripheral hardware, this structure has been protected filter screen from inside to outside, even oppositely install or generation gases at high pressure reverse flow; also can not cause the breakage of internal screen, thoroughly avoid in the oppositely impact lower filter screen breakage of gas.

As improvement, described first skeleton is a tubulose, and described first skeleton is away from the end sealing of joint, and described filter screen, first catch net, second skeleton and second catch net are tubulose.

The end that one end and the joint of described filter core stretches into housing is connected, and is meant that the untight end of first skeleton of described filter core is connected with the end that described joint stretches into housing.

Description of drawings

Fig. 1 is the broken section structural representation of existing filtering device for high-pressure gas pipeline.

Fig. 2 is vertical sectional structure schematic diagram of the filter core of existing filtering device for high-pressure gas pipeline.

Fig. 3 is the A portion structure for amplifying schematic diagram among Fig. 2.

Fig. 4 is the broken section structural representation of filtering device for high-pressure gas pipeline of the present invention.

Fig. 5 is vertical sectional structure schematic diagram of the filter core of filtering device for high-pressure gas pipeline of the present invention.

Fig. 6 is the B portion structure for amplifying schematic diagram among Fig. 5.

Fig. 7 is the horizontal sectional structure schematic diagram of the filter core of filtering device for high-pressure gas pipeline of the present invention.

Fig. 8 is the C portion structure for amplifying schematic diagram among Fig. 7.

Wherein, 1, housing; 2, joint; 3, filter core; 4, first skeleton; 5, filter screen; 6, first catch net; 7, hole; 8, second skeleton; 9, second catch net; 10, hole.

The specific embodiment

The present invention is further detailed explanation below in conjunction with the drawings and specific embodiments.

Extremely shown in Figure 8 as Fig. 4; filtering device for high-pressure gas pipeline of the present invention comprises housing 1; joint 2 and the filter core 3 that is located in the housing; described joint 2 is connected housing 1 one ends; one end of described filter core 3 is connected with the end that joint 2 stretches into housing 1; the remainder of described filter core 3 is unsettled in housing 1; described filter core 3 comprises first skeleton 4; the filter screen 5 and first catch net 6; described filter screen 5 is socketed in outside first skeleton 4; described first catch net 6 is socketed in outside the filter screen 5; the hole 7 that the supplied gas circulation is arranged on described first skeleton 4; described filter core 3 also comprises second skeleton 8 and second catch net 9; described second catch net 9 is socketed between the filter screen 5 and first skeleton 4; described second skeleton 8 is socketed in outside first catch net 6; described second skeleton 8 is provided with hole 10, and the hole 7 on the described hole 10 and first skeleton 4 is coaxially set.

Described first skeleton 4 is a tubulose, and described first skeleton 4 is away from the end sealing of joint 2, and described filter screen 5, first catch net 6, second skeleton 8 and second catch net 9 are tubulose.

One end of described filter core 3 is connected with the end that joint 2 stretches into housing, is meant that first skeleton, 4 untight ends of described filter core 3 are connected with the end that described joint 2 stretches into housing.

Claims

1. filtering device for high-pressure gas pipeline; comprise housing (1); joint (2) and be located at filter core (3) in the housing; described joint (2) is connected housing (1) one end; one end of described filter core (3) is connected with the end that joint (2) stretches into housing (1); the remainder of described filter core (3) is unsettled in housing (1); described filter core (3) comprises first skeleton (4); filter screen (5) and first catch net (6); described filter screen (5) is socketed in outside first skeleton (4); described first catch net (6) is socketed in outside the filter screen (5); the hole (7) that the supplied gas circulation is arranged on described first skeleton (4); it is characterized in that: described filter core (3) also comprises second skeleton (8) and second catch net (9); described second catch net (9) is socketed between filter screen (5) and first skeleton (4); described second skeleton (8) is socketed in outside first catch net (6); described second skeleton (8) is provided with hole (10), and the hole (7) on described hole (10) and first skeleton (4) is coaxially set.

2. filtering device for high-pressure gas pipeline according to claim 1; it is characterized in that: described first skeleton (4) is a tubulose; described first skeleton (4) is away from the end sealing of joint (2), and described filter screen (5), first catch net (6), second skeleton (8) and second catch net (9) are tubulose.

3. filtering device for high-pressure gas pipeline according to claim 1 and 2, it is characterized in that: an end of described filter core (3) is connected with the end that joint (2) stretches into housing, is meant that the untight end of first skeleton (4) of described filter core (3) is connected with the end that described joint (2) stretches into housing.