CN218954189U

CN218954189U - Stroke indicator for combustible gas pressure regulating valve

Info

Publication number: CN218954189U
Application number: CN202222737071.2U
Authority: CN
Inventors: 贾智磊; 钟琦峰; 周正; 汪杰; 薛国标; 虞成安; 张晓亮; 洪万宇; 董家乐; 戴青和; 徐斌; 信苏杭; 郑鲁; 叶怀培; 黄海波; 黄宁
Original assignee: Ningbo Oil Port Barge Co ltd
Current assignee: Ningbo Oil Port Barge Co ltd
Priority date: 2022-10-18
Filing date: 2022-10-18
Publication date: 2023-05-02
Anticipated expiration: 2032-10-18

Abstract

The utility model provides a stroke indicator of a flammable gas pressure regulating valve, which belongs to the technical field of flammable gas pressure regulating valves and comprises the following components: a base provided with a finger pinhole; the observation window is connected with the base and forms an observation cavity, the observation window is provided with an observation hole, and the observation cavity is communicated with the outside through the observation hole; the glass tube is arranged in the observation cavity and connected with the base, the glass tube is provided with a pointer cavity and a sealing part, and the pointer cavity is communicated with the pointer hole and is separated from the observation cavity through the sealing part. The beneficial effects of the utility model are as follows: the friction of the pointer and the O-shaped ring of the base possibly causes excessive abrasion of the inner side of the pointer and causes gas to leak into the pointer cavity, and the pointer cavity is communicated with the pointer hole and is separated from the observation cavity through the sealing part, so that the pointer is blocked by the sealing part, and the problem that the gas possibly leaks from the opening at the top of the glass tube and flows from the observation hole to the outside in the prior art is solved.

Description

Stroke indicator for combustible gas pressure regulating valve

Technical Field

The utility model belongs to the technical field of combustible gas pressure regulating valves, and relates to a stroke indicator of a combustible gas pressure regulating valve.

Background

The power ship main engine is generally provided with a main engine gas valve control unit device, a flammable gas pressure regulating valve is arranged in the main engine gas valve control unit device, an internal diaphragm of the main engine gas valve control unit device separates the pressure regulating valve into an upper chamber and a lower chamber, a travel indicator is arranged at the top of the upper chamber, and an equipment manager can judge whether the pressure regulating valve works well or not by observing the reddened pointer position of the travel indicator so as to master the deformation state of the diaphragm of the pressure regulating valve. During actual operation, both chambers are filled with combustible gas.

As shown in fig. 1 and 2, in the prior art, a common leak prevention technique of a travel indicator is to provide an O-ring seal between a pointer and a base of the travel indicator, so as to prevent the combustible gas in an upper chamber of a pressure regulating valve from leaking. However, in the working process, the continuous up-and-down motion of the pointer can always generate sliding friction with the O-shaped ring, the abrasion of the inner side of the O-shaped ring can be gradually increased after the O-shaped ring is worn for a long time, the sealing performance is reduced, the leakage of combustible gas occurs, the safe use of equipment is seriously influenced, and a large improvement space is provided.

Disclosure of Invention

The utility model aims to solve the problems in the prior art and provides a stroke indicator of a combustible gas pressure regulating valve.

The aim of the utility model can be achieved by the following technical scheme: a flammable gas pressure regulating valve travel indicator comprising:

a base provided with a finger pinhole;

the observation window is connected with the base and forms an observation cavity, the observation window is provided with an observation hole, and the observation cavity is communicated with the outside through the observation hole;

the glass tube is arranged in the observation cavity and connected with the base, the glass tube is provided with a pointer cavity and a sealing part, and the pointer cavity is communicated with the pointer hole and is separated from the observation cavity through the sealing part.

In the above-mentioned flammable gas pressure regulating valve travel indicator, further include a first sealing ring, the glass tube is connected with the base through the first sealing ring, and the first sealing ring seals the gap between the glass tube and the base.

In the above-mentioned flammable gas pressure regulating valve travel indicator, the observation window is further provided with a pressing part, the observation window is contacted with the glass tube through the pressing part, and the pressing part pushes the glass tube to be abutted against the first sealing ring.

In the above-mentioned travel indicator for a fuel gas pressure regulating valve, the base is further provided with a positioning groove, and the first sealing ring is disposed in the positioning groove, so that the positioning groove can position the first sealing ring.

In the above-mentioned flammable gas pressure regulating valve travel indicator, the cross-sectional shape of the first seal ring is circular, and the cross-sectional shape of the positioning groove is semicircular in shape matched with the first seal ring.

In the above-mentioned flammable gas pressure regulating valve travel indicator, one end of the glass tube is sealed to form the sealing portion, and the other end is opened to form an opening portion, the pointer cavity is located between the sealing portion and the opening portion, and the pointer cavity is communicated with the pointer hole through the opening portion.

In the above-mentioned flammable gas pressure regulating valve travel indicator, further include a second sealing ring, the observation window is connected with the base through the second sealing ring.

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

1. the friction of the pointer and the O-shaped ring of the base possibly causes excessive abrasion of the inner side of the pointer and causes gas to leak into the pointer cavity, and the pointer cavity is communicated with the pointer hole and is separated from the observation cavity through the sealing part, so that the pointer is blocked by the sealing part, and the problem that the gas possibly leaks from the opening at the top of the glass tube and flows from the observation hole to the outside in the prior art is solved.

2. The glass tube is connected with the base through the first sealing ring, and the first sealing ring seals the gap between the glass tube and the base, so that gas is prevented from leaking from the gap between the glass tube and the base, and the gas can play a role in double-layer sealing protection together with an O-shaped ring between the pointer and the base in the prior art.

3. The observation window is contacted with the glass tube through the pressing part, the pressing part pushes the glass tube to be abutted against the first sealing ring, and the glass tube and the first sealing ring can be pressed on the base without adopting other fixed connection modes.

4. The first sealing ring is arranged in the positioning groove, so that the positioning groove can position the first sealing ring, and the positioning groove can effectively prevent the first sealing ring from sliding in the horizontal direction to generate air leakage.

Drawings

Fig. 1 is a schematic view of a prior art travel indicator.

Fig. 2 is an enlarged schematic view of a portion a of fig. 1.

Fig. 3 is a schematic view of the travel indicator of the present utility model.

Fig. 4 is a top view of the travel indicator of the present utility model.

Fig. 5 is a schematic cross-sectional view in the direction B-B of fig. 4.

Fig. 6 is an exploded view of the travel indicator of the present utility model.

100, a base; 110. a finger hole; 120. a positioning groove; 200. an observation window; 210. an observation cavity; 220. an observation hole; 230. a pressing part; 300. a glass tube; 310. a pointer cavity; 320. a closing part; 330. an opening portion; 400. a first seal ring; 500. and a second sealing ring.

Detailed Description

The following are specific embodiments of the present utility model and the technical solutions of the present utility model will be further described with reference to the accompanying drawings, but the present utility model is not limited to these embodiments.

It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.

Furthermore, descriptions such as those referred to herein as "first," "second," "a," and the like are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or an implicit indication of the number of features being indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In addition, the technical solutions of the embodiments of the present utility model may be combined with each other, but it is necessary to be based on the fact that those skilled in the art can implement the technical solutions, and when the technical solutions are contradictory or cannot be implemented, the combination of the technical solutions should be considered as not existing, and not falling within the scope of protection claimed by the present utility model.

The specific embodiments described herein are offered by way of example only to illustrate the spirit of the utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the utility model or exceeding the scope of the utility model as defined in the accompanying claims.

As shown in fig. 3-6, a flammable gas pressure regulating valve travel indicator comprises: a base 100, a viewing window 200, and a glass tube 300.

Wherein the base 100 is provided with a finger hole 110.

Wherein, the observation window 200 is connected with the base 100 and forms an observation cavity 210, the observation window 200 is provided with an observation hole 220, and the observation cavity 210 is communicated with the outside through the observation hole 220.

Wherein, the glass tube 300 is disposed in the observation cavity 210 and connected with the base 100, the glass tube 300 is provided with a pointer cavity 310 and a closing portion 320, and the pointer cavity 310 is communicated with the pointer hole 110 and separated from the observation cavity 210 by the closing portion 320.

In the present embodiment, the friction between the pointer and the O-ring of the base 100 may cause excessive abrasion of the inner side thereof to allow gas to leak into the pointer cavity 310, and the pointer cavity 310 communicates with the pointer hole 110 and is separated from the viewing cavity 210 by the sealing part 320, thus being blocked by the sealing part 320, overcoming the problem that the gas may leak from the opening at the top of the glass tube 300 and flow to the outside from the viewing hole 220 in the prior art.

Preferably, one end of the glass tube 300 is sealed to form the sealing part 320, and the other end is opened to form the opening part 330, the pointer cavity 310 is located between the sealing part 320 and the opening part 330, and the pointer cavity 310 communicates with the pointer hole 110 through the opening part 330.

As shown in fig. 5 and 6, the present utility model further includes a first seal ring 400, wherein the glass tube 300 is connected to the base 100 through the first seal ring 400, and the first seal ring 400 seals a gap between the glass tube 300 and the base 100.

In the present embodiment, the glass tube 300 is connected to the base 100 through the first seal ring 400, and the first seal ring 400 seals the gap between the glass tube 300 and the base 100, so as to prevent the gas from leaking from the gap between the glass tube 300 and the base 100, and the gas-tight seal protection function is achieved together with the O-ring between the pointer and the base 100 in the prior art.

As shown in fig. 5 and 6, in addition to the above embodiment, the observation window 200 is further provided with a pressing portion 230, the observation window 200 is in contact with the glass tube 300 through the pressing portion 230, and the pressing portion 230 pushes the glass tube 300 to abut against the first seal ring 400.

In the present embodiment, the observation window 200 is in contact with the glass tube 300 through the pressing portion 230, and the pressing portion 230 pushes the glass tube 300 to abut against the first seal ring 400, so that the glass tube 300 and the first seal ring 400 can be pressed against the base 100 without adopting other fixing connection modes.

As shown in fig. 5 and 6, in addition to the above embodiment, the base 100 is further provided with a positioning groove 120, and the first seal ring 400 is disposed in the positioning groove 120, so that the positioning groove 120 can position the first seal ring 400.

In this embodiment, the first seal ring 400 is disposed in the positioning groove 120, so that the positioning groove 120 can position the first seal ring 400, and the positioning groove 120 can effectively prevent the first seal ring 400 from sliding in the horizontal direction to generate air leakage.

Preferably, the cross-sectional shape of the first seal ring 400 is circular, and the cross-sectional shape of the positioning groove 120 is semicircular, which is matched with the first seal ring 400.

As shown in fig. 3, 5 and 6, the above embodiment further includes a second seal ring 500, and the observation window 200 is connected to the base 100 through the second seal ring 500.

In the present embodiment, the observation window 200 is connected to the base 100 through the second seal ring 500, so that an elastic force is provided between the observation window 200 and the base 100, and the observation window 200 is prevented from crushing the glass tube 300.

Claims

1. A flammable gas pressure regulating valve travel indicator comprising:

a base provided with a finger pinhole;

2. The flammable gas pressure regulating valve travel indicator according to claim 1, wherein: the glass tube is connected with the base through the first sealing ring, and the first sealing ring seals a gap between the glass tube and the base.

3. A flammable gas pressure regulating valve travel indicator according to claim 2, wherein: the observation window is further provided with a pressing part, the observation window is contacted with the glass tube through the pressing part, and the pressing part pushes the glass tube to be abutted against the first sealing ring.

4. A flammable gas pressure regulating valve travel indicator according to claim 2, wherein: the base is also provided with a positioning groove, and the first sealing ring is arranged in the positioning groove so that the positioning groove can position the first sealing ring.

5. The fuel gas pressure regulating valve travel indicator according to claim 4, wherein: the cross section of the first sealing ring is circular, and the cross section of the positioning groove is semicircular matched with the first sealing ring.

6. The flammable gas pressure regulating valve travel indicator according to claim 1, wherein: one end of the glass tube is sealed to form the sealing part, the other end of the glass tube is opened to form an opening part, the pointer cavity is positioned between the sealing part and the opening part, and the pointer cavity is communicated with the pointer hole through the opening part.

7. The flammable gas pressure regulating valve travel indicator according to claim 1, wherein: the observation window is connected with the base through the second sealing ring.