CN217683410U - Backflow-preventing valve for oil exploitation - Google Patents

Abstract

The utility model discloses a valve for oil development of anti-return, including valve device, valve device one side fixed mounting has first flange, and one side that valve device kept away from first flange is provided with outer connecting pipe structure, and outer connecting pipe structure is inside to be provided with interior connecting pipe structure, is provided with the jam between outer connecting pipe structure and the interior connecting pipe structure, and the inside anti-return device that is provided with of interior connecting pipe structure. This valve for oil development of anti-return is through setting up outer joint pipe structure, internal connection pipeline structure and anti-return device, through the oil pressure when adopting the transportation, gives spacing stopper certain power, realizes the inside one-way conduction of internal connection pipe to reduce the backward flow phenomenon of oil in the transportation.

Description

Backflow-preventing valve for oil exploitation

Technical Field

The utility model relates to the technical field of valves, specifically be a valve for oil development of anti-return flow.

Background

Oil extraction refers to the act of excavating and extracting oil in places where oil is stored. During the process of oil production, oil and gas flow from a reservoir to the bottom of a well and rise from the bottom of the well to the top of the well in a driving mode, and oil is a fluid mineral deeply buried in the ground. At first, oily liquid minerals produced in nature are called petroleum, combustible gas is called natural gas, and solid combustible oily minerals are called asphalt. With the intensive research on these minerals, it is recognized that they are hydrocarbon compounds in composition, and are related to each other in origin, so they are collectively called oil, and oil production also includes natural gas production.

A large amount of pipelines and valves need to be used in oil exploitation, and the valve is also an indispensable part, but, the existing valve for oil exploitation does not have the backflow prevention function, is not convenient for a user to use, and reduces the practicability of the valve for oil exploitation.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a valve for oil development of anti-return to the weak point of prior art to solve the problem that proposes in the background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a valve for oil development of anti-return, includes valve device, valve device one side fixed mounting has first flange, one side that valve device kept away from first flange is provided with outer connecting pipe structure, the inside in-connection pipeline structure that is provided with of outer connecting pipe structure, be provided with the jam between outer connecting pipe structure and the in-connection pipeline structure, the inside anti-return device that is provided with of in-connection pipeline structure.

As the utility model discloses an optimized technical scheme, one side that valve device was kept away from to interconnection pipeline structure is provided with the liquid outlet pipe way, one side fixed mounting that the interior connecting pipe structure was kept away from to the liquid outlet pipe way has the second flange, and liquid outlet pipe way and second flange play and connect external pipeline for the play liquid effect of oil.

As the utility model discloses an optimized technical scheme, valving includes valve body, first connecting seat, second connecting seat and spiral handle, first connecting seat fixed mounting is at the valve body outer wall, the fixed orifices has all been seted up to first connecting seat and second connecting seat inside, the spiral handle all rotates with first connecting seat and second connecting seat to be connected, and the spiral handle plays the effect that switches on and close of valve body.

As the utility model discloses an preferred technical scheme, outer connecting tube structure includes outer connecting pipe, fixed stopper and connecting hole, the external diameter of fixed stopper and the internal diameter size phase-match of outer connecting pipe, the internal diameter size of connecting hole and the external diameter size phase-match of liquid outlet pipe way, outer connecting pipe plays the effect of connecting liquid outlet pipe way.

As the utility model discloses a preferred technical scheme, the pipeline structure is taken over in the interconnection includes interconnection and connects and the small opening, the small opening centers on interconnection and connects the symmetric distribution, the inner wall and the outer wall of jam respectively with interconnection and connect pipe and outer connecting pipe fixed connection, the interconnection is taken over and is played the effect of connecting the valve body.

As the utility model discloses an preferred technical scheme, anti-return device includes spacing stopper, slider, first bracing piece, clamping ring, second bracing piece and reset spring, the spout with slider looks adaptation is seted up to the inside pipe inner wall of interconnection, sliding connection is taken over with the interconnection through slider and spout to spacing stopper, and the cooperation of slider and spout is used, can reduce the frictional force of spacing stopper when sliding and between the interconnection is taken over.

As the utility model discloses an preferred technical scheme, inside the connecting tube including second bracing piece fixed mounting, first bracing piece and second bracing piece sliding connection, first bracing piece and spacing stopper fixed connection, the external diameter of clamping ring be greater than reset spring's external diameter and with the internal diameter size phase-match of second bracing piece, reset spring can convert the elasticity after the compression into the gliding power of first bracing piece to drive spacing stopper through first bracing piece and slide in the inside of in-connection pipe, and then the shutoff small opening, reduce the inside backward flow phenomenon of pipeline of oil.

Compared with the prior art, the utility model provides a valve for oil development of anti-return flow possesses following beneficial effect:

1. this valve for oil development of anti-return, through setting up outer joint pipe structure, inside connecting pipe structure and anti-return device, in use, be connected valve body and oil transportation pipeline through first flange, later rotate the spiral handle, switch on the valve body, the oil reaches inside the connecting pipe through the valve body this moment, and spacing stopper is at the internal contraction under the pressure of oil transportation, and then expose the small opening, oil this moment passes through the small opening, inside the outer joint pipe flows into out the liquid pipeline, and then accomplish the transportation of oil, when the valve body is closed, the oil reduces for the pressure of spacing stopper this moment, reset spring converts elasticity into the gliding power of first bracing piece, and then drive inside to one side slip of connecting pipe of spacing stopper, and then the shutoff small opening, thereby reduce the backward flow phenomenon of oil when the exploitation transportation.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the valve device of the present invention;

FIG. 3 is a schematic view of the structure of the external connection pipe and the structure of the internal connection pipe of the present invention;

fig. 4 is a schematic view of the structure of the backflow prevention device of the present invention.

In the figure: 1. a valve means; 101. a valve body; 102. a first connecting seat; 103. a second connecting seat; 104. a screw handle; 2. a first connecting flange; 3. an external connection pipe structure; 301. an outer connecting pipe; 302. a fixed plug; 303. connecting holes; 4. an internal connection pipeline structure; 401. an internal connection pipe; 402. a leak groove; 5. blocking; 6. a backflow prevention device; 601. a limiting plug; 602. a slider; 603. a first support bar; 604. pressing a ring; 605. a second support bar; 606. a return spring; 7. a liquid outlet pipeline; 8. a second connecting flange.

Detailed Description

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

The first embodiment is as follows:

referring to fig. 1-3, a backflow prevention valve for oil exploitation comprises a valve device 1, wherein the valve device 1 comprises a valve body 101, a first connecting seat 102, a second connecting seat 103 and a spiral handle 104, the first connecting seat 102 is fixedly mounted on the outer wall of the valve body 101, fixing holes are formed in the first connecting seat 102 and the second connecting seat 103, the spiral handle 104 is rotatably connected with the first connecting seat 102 and the second connecting seat 103, and the spiral handle 104 plays a role in conducting and closing the valve body 101; a first connecting flange 2 is fixedly installed on one side of the valve device 1, an external connecting pipeline structure 3 is arranged on one side, away from the first connecting flange 2, of the valve device 1, the external connecting pipeline structure 3 comprises an external connecting pipe 301, a fixing plug 302 and a connecting hole 303, the external diameter of the fixing plug 302 is matched with the internal diameter of the external connecting pipe 301, the internal diameter of the connecting hole 303 is matched with the external diameter of the liquid outlet pipeline 7, and the external connecting pipe 301 plays a role in connecting the liquid outlet pipeline 7; an inner connecting pipeline structure 4 is arranged inside the outer connecting pipeline structure 3, the inner connecting pipeline structure 4 comprises inner connecting pipes 401 and leakage grooves 402, the leakage grooves 402 are symmetrically distributed around the inner connecting pipes 401, the inner wall and the outer wall of the plug 5 are fixedly connected with the inner connecting pipes 401 and the outer connecting pipes 301 respectively, and the inner connecting pipes 401 play a role of connecting the valve body 101; one side of the inner connecting pipeline structure 4, which is far away from the valve device 1, is provided with a liquid outlet pipeline 7, one side of the liquid outlet pipeline 7, which is far away from the inner connecting pipeline structure 4, is fixedly provided with a second connecting flange 8, and the liquid outlet pipeline 7 and the second connecting flange 8 play a role in connecting an external pipeline for the liquid outlet of petroleum.

Referring to fig. 4, a plug 5 is arranged between the outer connecting pipeline structure 3 and the inner connecting pipeline structure 4, an anti-backflow device 6 is arranged inside the inner connecting pipeline structure 4, the anti-backflow device 6 includes a limiting plug 601, a sliding block 602, a first supporting rod 603, a pressing ring 604, a second supporting rod 605 and a return spring 606, a sliding groove matched with the sliding block 602 is formed in the inner wall of the inner connecting pipe 401, the limiting plug 601 is connected with the inner connecting pipe 401 through the sliding block 602 and the sliding groove in a sliding manner, and the sliding block 602 and the sliding groove are used in a matching manner, so that the friction force between the limiting plug 601 and the inner connecting pipe 401 during sliding can be reduced; second bracing piece 605 fixed mounting is inside in-connection pipe 401, first bracing piece 603 and second bracing piece 605 sliding connection, first bracing piece 603 and spacing stopper 601 fixed connection, the external diameter size of clamping ring 604 is greater than reset spring 606's external diameter size and with second bracing piece 605's internal diameter size phase-match, reset spring 606 can convert the elasticity after the compression into the gliding power of first bracing piece 603, thereby drive connecting pipe 401 inside slip including stopper 601 through first bracing piece 603, and then shutoff small opening 402, reduce the inside backward flow phenomenon of pipeline of oil.

The utility model discloses a theory of operation and use flow: this valve for oil development of anti-return, during the use, be connected valve body 101 with the oil transportation pipeline through first flange 2, later rotate spiral handle 104, switch on valve body 101, the oil reaches inside interconnection connecting pipe 401 through valve body 101 this moment, and spacing stopper 601 is inside shrink under the pressure of oil transportation, and then expose the small opening 402, the oil at this moment passes through small opening 402, inside outer connecting pipe 301 flows into liquid outlet pipe 7, and then accomplish the transportation of oil, when valve body 101 is closed, the oil gives the pressure reduction of spacing stopper 601 this moment, reset spring 606 converts elasticity into the gliding power of first bracing piece 603, and then drive spacing stopper 601 inside to one side slip including connecting pipe 401, and then shutoff small opening 402, thereby reduce the backward flow phenomenon of oil when the exploitation transportation.

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 may be made to the embodiments described above, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (7)

1. The utility model provides a valve is used in oil development of anti-return which characterized in that: including valve device (1), valve device (1) one side fixed mounting has first connecting flange (2), one side that valve device (1) kept away from first connecting flange (2) is provided with outer connecting pipe structure (3), outer connecting pipe structure (3) inside is provided with in-connection pipeline structure (4), be provided with between outer connecting pipe structure (3) and in-connection pipeline structure (4) and block up (5), in-connection pipeline structure (4) inside is provided with anti-reflux device (6).

2. The backflow prevention oil exploitation valve according to claim 1, wherein: a liquid outlet pipeline (7) is arranged on one side, far away from the valve device (1), of the inner connecting pipeline structure (4), and a second connecting flange (8) is fixedly mounted on one side, far away from the inner connecting pipeline structure (4), of the liquid outlet pipeline (7).

3. The backflow prevention oil exploitation valve according to claim 1, wherein: the valve device (1) comprises a valve body (101), a first connecting seat (102), a second connecting seat (103) and a spiral handle (104), wherein the first connecting seat (102) is fixedly installed on the outer wall of the valve body (101), fixing holes are formed in the first connecting seat (102) and the second connecting seat (103) in an inner portion, and the spiral handle (104) is connected with the first connecting seat (102) and the second connecting seat (103) in a rotating mode.

4. The backflow prevention oil exploitation valve according to claim 2, wherein: the outer connecting pipeline structure (3) comprises an outer connecting pipe (301), a fixed plug (302) and a connecting hole (303), the outer diameter of the fixed plug (302) is matched with the inner diameter of the outer connecting pipe (301), and the inner diameter of the connecting hole (303) is matched with the outer diameter of the liquid outlet pipeline (7).

5. The backflow prevention oil exploitation valve according to claim 4, wherein: the inner connecting pipeline structure (4) comprises inner connecting pipes (401) and leakage grooves (402), the leakage grooves (402) are symmetrically distributed around the inner connecting pipes (401), and the inner wall and the outer wall of the plug (5) are fixedly connected with the inner connecting pipes (401) and the outer connecting pipes (301) respectively.

6. The backflow prevention valve for oil exploitation of claim 5, wherein: the backflow prevention device (6) comprises a limiting plug (601), a sliding block (602), a first supporting rod (603), a pressing ring (604), a second supporting rod (605) and a return spring (606), a sliding groove matched with the sliding block (602) is formed in the inner wall of the inner connecting pipe (401), and the limiting plug (601) is connected with the inner connecting pipe (401) in a sliding mode through the sliding block (602) and the sliding groove.

7. The backflow prevention oil exploitation valve according to claim 6, wherein: the second supporting rod (605) is fixedly installed inside the inner connecting pipe (401), the first supporting rod (603) is connected with the second supporting rod (605) in a sliding mode, the first supporting rod (603) is fixedly connected with the limiting plug (601), and the outer diameter of the pressing ring (604) is larger than the outer diameter of the return spring (606) and matched with the inner diameter of the second supporting rod (605).

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