CN218670647U - Anti-blocking pipeline sampling valve - Google Patents

Abstract

The utility model discloses a prevent pipeline sample valve of jam, including valve body, the valve rod of connection at the valve body top, the level runs through in the valve body and has seted up the medium pipeline, and first sample pipeline has been seted up perpendicularly at the valve body middle part, first sample pipeline bottom runs through and sets up the second sample pipeline that is linked together with the medium pipeline, and the valve body is run through at first sample pipeline top, the valve rod is pegged graft in first sample pipeline, and valve rod bottom fixedly connected with is the chock plug of toper structure, the cylindric embolism push rod that the chock plug bottom fixedly connected with diameter reduces gradually under to from last, embolism push rod and second sample pipeline interference fit, the valve body is located medium pipeline top both sides and sets up nitrogen gas purging mouth and the sample connection that all is linked together with first sample pipeline respectively, through the design of valve rod bottom embolism push rod, can push back the remaining medium back in the pipeline sample valve after finishing the sample in the medium pipeline back to avoid the condition of easy crystallization medium jam.

Description

Anti-blocking pipeline sampling valve

The technical field is as follows:

the utility model relates to the technical field of valves, concretely relates to prevent pipeline sample valve of jam.

Background art:

the pipeline sampling valve is suitable for pipeline online sampling work. The existing pipeline sampling valve is easy to block a medium which is easy to crystallize after sampling, thereby bringing inconvenience to sampling work.

The utility model has the following contents:

the utility model aims at prior art's defect, provide a prevent pipeline sample valve of jam to solve current pipeline sample valve to the medium of easy crystallization, easily block up after the sampling, thereby bring inconvenient problem for sample work.

The utility model provides a technical scheme that its technical problem adopted: the utility model provides a prevent pipeline sample valve of jam, includes the valve body, connects the valve rod at the valve body top, the level runs through in the valve body has seted up the medium pipeline, and first sample pipeline has been seted up perpendicularly at the valve body middle part, first sample pipeline runs through the bottom and sets up the second sample pipeline that is linked together with the medium pipeline, and the valve body is run through at first sample pipeline top, the valve rod is pegged graft in first sample pipeline, and valve rod bottom fixedly connected with is the chock plug of toper structure, chock plug bottom fixedly connected with diameter is from last to the cylindric embolism push rod that reduces gradually down, embolism push rod and second sample pipeline interference fit, the valve body is located medium pipeline top both sides and has seted up nitrogen gas that all is linked together with first sample pipeline respectively and has swept mouth and sample connection.

In order to solve the problem that the valve is hard to close after the sampling is finished, the top end of the valve rod is provided with a handle in a straight shape.

As a further scheme of the utility model, the valve gap can be dismantled and be connected to the valve body top, adopt threaded connection between valve gap and the valve rod.

As a further aspect of the present invention, the first sampling pipe top is fixed with a sealing member through a valve cover press fitting.

As a further aspect of the present invention, the second sampling pipe diameter is smaller than the first sampling pipe diameter.

As a further aspect of the present invention, the right angle in the first sampling pipe is processed by chamfering.

As a further aspect of the present invention, a sealing surface is provided between the plug head bottom and the bottom end face of the first sampling pipe.

As a further proposal of the utility model, the valve rod, the plug head and the plug push rod are of an integrated structure.

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

through the design of valve rod bottom embolism push rod, can finish the sample in the interior residual medium push back medium pipeline of back pipeline sample valve, can clear up the inside residual medium of pipeline sample valve through nitrogen gas purge port, thereby avoid easy crystallization medium to remain the condition that appears blockking up in the valve body through above-mentioned both cooperations, nitrogen gas purge port can replace the air originally in the sample bottle simultaneously, the first half formation nitrogen protection in the sample bottle simultaneously, thereby avoid being by another kind of material of the chemical reaction generation that sample medium and air contact take place, influence the test result.

Description of the drawings:

fig. 1 is a schematic structural diagram of an anti-clogging pipeline sampling valve of the present invention;

FIG. 2 is a side sectional view of an anti-clog pipeline sampling valve of the present invention;

fig. 3 is a schematic structural diagram of a plug push rod of an anti-clogging pipeline sampling valve according to the present invention;

in the figure: 1. a valve body; 2. a first sampling pipe; 3. a second sampling pipe; 4. a media conduit; 5. a handle; 6. a valve stem; 7. a plug push rod; 8. a plug head; 9. a valve cover; 10. a seal member; 11. a sampling port; 12. and (4) purging the port with nitrogen.

The specific implementation mode is as follows:

the following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, and the protection scope of the present invention can be clearly and clearly defined.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Combine the pipeline sample valve that fig. 1 and fig. 2 show prevents blockking up, including valve body 1, connect the valve rod 6 at valve body 1 top, the level runs through and has seted up medium pipeline 4 in the valve body 1, and first sample pipeline 2 has been seted up perpendicularly at valve body 1 middle part, the second sample pipeline 3 that is linked together with medium pipeline 4 is seted up to first sample pipeline 2 bottom run through, second sample pipeline 3 diameter is less than first sample pipeline 2 diameter, and first sample pipeline 2 top runs through valve body 1, first sample pipeline 2 top is fixed with sealing member 10 through the pressure equipment of valve gap 9, valve rod 6 is pegged graft in first sample pipeline 2, and valve rod 6 top is provided with handle 5 that is a style of calligraphy, and the handle 5 operation of a style of calligraphy design is more laborsaving, and valve rod 6 bottom fixedly connected with plug 8 that is the toper structure, be equipped with sealed face between plug 8 bottom and the first sample pipeline 2 bottom terminal surface to increase the leakproofness of first sample pipeline 2, plug 8 bottom fixedly connected with the embolism push rod 7, embolism 7 and second sample pipeline 3 interference fit, valve rod 6, plug 8 and plug 7 and toughness are an organic whole, thereby the service life is difficult for the long service life, the shaping.

Wherein, in order to prevent the inside fluid outflow of valve body 1, valve gap 9 can be dismantled and be connected with in the 1 top of valve body to provide sealing performance, for guaranteeing the normal transmission switch of valve rod 6, for valve rod 6 provides the positioning action, adopt threaded connection between valve gap 9 and the valve rod 6.

In order to avoid that the dead angle in the first sampling pipe 2 may leave a medium, so that the dead angle is difficult to clean, the chamfer angle in the first sampling pipe 2 is processed by chamfering.

As shown in fig. 2, valve body 1 is located 4 top both sides of medium pipeline and has seted up nitrogen gas purging port 12 and sample connection 11 that all are linked together with first sample pipeline 2 respectively, can clear up the inside remaining medium of pipeline sample valve through nitrogen gas purging port 12, nitrogen gas purging port 12 can replace the air originally in the sample bottle simultaneously, can form nitrogen protection in the first half in the sample bottle simultaneously, thereby avoid being by another kind of substance that the chemical reaction that sample medium and air contact took place produced, influence the test result.

The embolism push rod 7 as shown in figure 3, the embolism push rod 7 is cylindricly that the diameter from last to reducing gradually down, cooperate with second sampling pipe 3 through embolism push rod 7, when the sample, turning handle 5 drives embolism push rod 7 slow upward movement, produce the gap between embolism push rod 7 and second sampling pipe 3, thereby accomplish the sample, the distance of removal in second sampling pipe 3 through control embolism push rod 7 this moment, the flow of medium in the medium pipeline 4 when can controlling the sample, when the sample finishes, turning handle 5 drives embolism push rod 7 and moves down, thereby close the sample access, can push back medium pipeline 4 with remaining medium in the second sampling pipe 3 after the sample finishes in the while, thereby avoid easy crystallization medium to remain and appear the condition of blockking up in valve body 1.

The utility model discloses a theory of operation is: during sampling, be located sample connection 11 with the sampling bottle (not shown) earlier and connect fixedly, sweep the interior original air of sampling bottle through nitrogen gas, twist grip 5 drives valve rod 6, valve rod 6 drives embolism push rod 7 and upwards removes from second sample pipeline 3, produce the gap between embolism push rod 7 and second sample pipeline 3, thereby the sampling bottle accomplishes the sample, twist grip 5 drives embolism push rod 7 and downwards removes, with the sample passageway closure, can push back the remaining medium in the second sample pipeline 3 after the sample finishes in medium pipeline 4 simultaneously, at this moment, sweep once more through nitrogen gas purge port 12, blow remaining medium in first sample pipeline 2 to the sampling bottle in, thereby avoid easily crystallized medium to remain the condition that appears the jam in valve body 1 through above-mentioned both cooperations, the sweep once more of nitrogen gas can form nitrogen protection in the first half in the sampling bottle simultaneously, thereby avoid by another kind of material that the chemical reaction that sample medium and air contact take place produced, influence the test result.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The above-mentioned embodiments only represent several embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention.

Claims (8)

1. The utility model provides a prevent pipeline sample valve of jam, includes valve body (1), connects valve rod (6) at valve body (1) top, its characterized in that: the medium pipeline (4) have been run through to level in the valve body (1), first sample pipeline (2) have been seted up perpendicularly in valve body (1) middle part, second sample pipeline (3) that are linked together with medium pipeline (4) have been run through to first sample pipeline (2) bottom, and valve body (1) is run through at first sample pipeline (2) top, peg graft in first sample pipeline (2) valve rod (6), and valve rod (6) bottom fixedly connected with is stopper (8) of toper structure, stopper (8) bottom fixedly connected with diameter is from last cylindric embolism push rod (7) that reduces gradually down, embolism push rod (7) and second sample pipeline (3) interference fit, valve body (1) are located medium pipeline (4) top both sides and offer respectively that all be linked together with first sample pipeline (2) nitrogen gas sweeps mouth (12) and sample connection (11).

2. The anti-clogging pipeline sampling valve of claim 1, wherein: the top end of the valve rod (6) is provided with a handle (5) in a straight line shape.

3. The anti-clogging pipeline sampling valve of claim 1, wherein: the valve is characterized in that the top of the valve body (1) is detachably connected with a valve cover (9), and the valve cover (9) is in threaded connection with the valve rod (6).

4. The anti-clogging pipeline sampling valve of claim 1, wherein: and a sealing element (10) is fixedly arranged at the top end of the first sampling pipeline (2) through a valve cover (9) in a press fit mode.

5. The anti-clogging pipeline sampling valve of claim 1, wherein: the diameter of the second sampling pipeline (3) is smaller than that of the first sampling pipeline (2).

6. The anti-clogging pipeline sampling valve of claim 1, wherein: and the inner right angle of the first sampling pipeline (2) is subjected to chamfering treatment.

7. The anti-clogging pipeline sampling valve of claim 1, wherein: and a sealing surface is arranged between the bottom of the plug head (8) and the end surface of the bottom of the first sampling pipeline (2).

8. The anti-clogging pipeline sampling valve of claim 1, wherein: the valve rod (6), the plug head (8) and the plug push rod (7) are of an integrally formed structure.

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