CN212296305U

CN212296305U - Pressure replacing instrument one-way valve device for water injection wellhead

Info

Publication number: CN212296305U
Application number: CN202020966840.4U
Authority: CN
Inventors: 侯专干; 陆军; 吕可鉴
Original assignee: Nanjing Weiye Machinery Co Ltd
Current assignee: Nanjing Weiye Machinery Co Ltd
Priority date: 2020-06-01
Filing date: 2020-06-01
Publication date: 2021-01-05
Anticipated expiration: 2030-06-01

Abstract

The utility model discloses a pressure replacement instrument check valve device for a water injection well mouth, which comprises a pressure replacement instrument check valve device connected with a rigid pipeline of the water injection well mouth, the device comprises a base (1) and a valve body (7), the base (1) and the valve body (7) are assembled into a whole in a sealing way, the bottom of the base (1) is provided with a first inner cavity, the inside of the valve body forms a second inner cavity, a steel ball (3) is arranged in the inner cavity of the base (1), a valve core (4) is arranged in the valve body (7), the bottom of the valve core (4) is contacted with the upper end face of the steel ball (3), the bottom of the steel ball (3) is provided with a spring (2), the steel ball (3) is pressed towards the bottom of the valve core (4) through the spring (2), the top opening end of the valve body (7) is sealed through a plug (9), and the base (1) is connected and communicated with a rigid pipeline of a water injection well mouth through a first inner cavity at the bottom. The installation and detection of the monitoring equipment can be facilitated, and the structural design is more reasonable.

Description

Pressure replacing instrument one-way valve device for water injection wellhead

Technical Field

The utility model relates to a well head equipment monitoring field, concretely relates to change instrument check valve device is pressed in area that water injection well head was used.

Background

The inside of a rigid pipeline of the water injection wellhead needs to be regularly subjected to pressure detection, so that the pipeline is prevented from bursting due to overlarge pressure. Among the prior art, detect very trouble to the rigid conduit internal pressure of water injection well head, can't realize accurate monitoring fast.

Disclosure of Invention

The utility model aims to solve the technical problem that an instrument check valve device is changed in area pressure that water injection well head was used, the check valve device is installed on the rigid pipeline of water injection well head for test instrument such as installation manometer for to the inside pressure monitoring convenience more of well head pipeline.

The utility model discloses a realize through following technical scheme: the utility model provides a water injection well head is used presses area and is changed instrument check valve device, the pressure that includes the rigid pipe connection of water injection well head is pressed and is changed instrument check valve device, the device includes a base and valve body, sealed equipment is as an organic whole between base and the valve body, the bottom of base is provided with a first inner chamber, the inside second inner chamber that forms of valve body, set up a steel ball in the inner chamber in the base, set up a case in the valve body, the bottom of case and the up end contact of steel ball, the bottom installation spring of steel ball, compress tightly the steel ball towards case bottom contact through the spring, the open-top end of valve body is sealed through an end cap, the base switches on through the first inner chamber of bottom and the rigid pipe.

As preferred technical scheme, the test instrument connects at the second inner chamber top opening of valve body, and second inner chamber bottom surface is provided with a bush, and the test instrument contacts with bush up end sealed after rotatory.

As the preferred technical scheme, the valve body and the base are rigidly sealed, and a first O-shaped sealing ring is arranged at the interface of the valve body and the base.

As the preferred technical scheme, the lower end of the plug is provided with a second O-shaped sealing ring, and after the plug is installed on the valve body, the second O-shaped sealing ring is in contact sealing with the upper end face of the valve body.

As preferred technical scheme, second inner chamber inner wall sets up the internal thread, and the test instrument passes through screw thread and second inner chamber threaded connection, end cap and second inner chamber threaded connection.

The utility model has the advantages that: the utility model discloses can install fast on the rigid pipeline, make things convenient for the later stage to install test instrument in the rigid pipeline outside, the monitoring of being convenient for, and test instrument easy dismounting, repeatedly usable.

When the instrument is not required to be tested, the instrument can be prevented from being lost, the instrument can be screwed out, the steel ball in the base moves upwards under the action of the spring force to form rigid sealing with the port at the lower end of the valve body again, the medium cannot leak outwards, and the plug is screwed into the thread at the upper end of the valve body to play roles in dust prevention and secondary sealing.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

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

Detailed Description

All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.

This specification includes any features disclosed in the appended claims, abstract and drawings, which are, unless expressly stated otherwise, replaceable with other equivalent or similarly purposed alternative features. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.

In the description of the present invention, it is to be understood that the terms "one end", "the other end", "the outside", "upper", "inside", "horizontal", "coaxial", "central", "end", "length", "outer end", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, in the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

The use of terms herein such as "upper," "above," "lower," "below," and the like in describing relative spatial positions is for the purpose of facilitating description to describe one element or feature's relationship to another element or feature as illustrated in the figures. The spatially relative positional terms may be intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "below" can encompass both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly

In the present invention, unless otherwise explicitly specified or limited, the terms "set", "coupled", "connected", "penetrating", "plugging", and the like are to be understood in a broad sense, and may be, for example, fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

As shown in figure 1, the utility model discloses a pressure replacement instrument check valve device for a water injection well mouth, which comprises a pressure replacement instrument check valve device connected with a rigid pipeline of the water injection well mouth, the device comprises a base 1 and a valve body 7, the base 1 and the valve body 7 are assembled into a whole in a sealing way, the bottom of the base 1 is provided with a first inner cavity, the valve body is internally provided with a second inner cavity, a steel ball 3 is arranged in the inner cavity of the base 1, a valve core 4 is arranged in the valve body 7, the bottom of the valve core 4 is contacted with the upper end face of the steel ball 3, the bottom of the steel ball 3 is provided with a spring 2, the steel ball 3 is pressed towards the bottom of the valve core 4 through the spring 2 in a contact manner, the open end of the top of the valve body 7 is sealed through a plug 9, and the base 1 is connected and communicated with a rigid pipeline of a water injection well mouth through a first inner cavity at the bottom.

Wherein, the test instrument connects at the second inner chamber top opening of valve body 7, and second inner chamber bottom surface is provided with a bush 6, and the test instrument is sealed with bush 6 up end contact after rotatory.

The valve body 7 and the base 1 are rigidly sealed, and a first O-shaped sealing ring 5 is arranged at the interface of the valve body and the base for increasing the sealing property. And a second O-shaped sealing ring 8 is arranged at the lower end of the plug 9, and after the plug is arranged on the valve body, the second O-shaped sealing ring 8 is in contact sealing with the upper end surface of the valve body 7.

Wherein, second inner chamber inner wall sets up the internal thread, and test instrument passes through screw thread and second inner chamber threaded connection, end cap 9 and second inner chamber threaded connection.

The working principle is as follows: the base is connected with a rigid pipeline of the water injection wellhead, when pressure media exist in the pipeline of the water injection wellhead, the media enter the cavity of the base of the one-way valve through the phi 10 hole at the lower end of the base, and the steel ball and the lower port of the valve body are rigidly sealed, so that the media can only stay in the cavity of the base and cannot leak outwards.

When pressure or other parameters in a water injection wellhead pipeline need to be tested, the plug 9 is unscrewed, a corresponding test instrument is screwed into the thread of the valve body 7, when the test instrument is screwed to the bottom, the end face of the instrument connector contacts the upper end face of the valve core 4 and continues to drive the valve core to move downwards, the steel ball and the lower port of the valve body are jacked open, meanwhile, the end face of the instrument connector is pressed on the lining 6 and sealed, the inner cavity of the base 1 is communicated with the inner cavity of the valve body 7 at the moment, and parameters such as medium pressure can be read out through the instrument.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through the creative work should be covered within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope defined by the claims.

Claims

1. The utility model provides a take area that water injection well head was used and change instrument check valve device which characterized in that: including the area of being connected with the rigid pipeline of water injection well head and pressing change instrument check valve device, the device includes a base (1) and valve body (7), sealed equipment is as an organic whole between base (1) and valve body (7), the bottom of base (1) is provided with a first inner chamber, inside second inner chamber that forms of valve body, set up a steel ball (3) in the inner chamber of (1) in the base, set up a case (4) in valve body (7), the bottom of case (4) and the up end contact of steel ball (3), bottom installation spring (2) of steel ball (3), compress tightly steel ball (3) towards case (4) bottom contact through spring (2), the open-top end of valve body (7) is sealed through an end cap (9), base (1) switches on through the rigid pipeline connection of the first inner chamber of bottom and water injection well head.

2. The pressurized replacing instrument one-way valve device for the water injection wellhead as claimed in claim 1, which is characterized in that: the test instrument is connected with the top opening of the second inner cavity of the valve body (7), the bottom surface of the second inner cavity is provided with a bushing (6), and the test instrument is in contact sealing with the upper end surface of the bushing (6) after rotating.

3. The pressurized replacing instrument one-way valve device for the water injection wellhead as claimed in claim 1, which is characterized in that: the valve body (7) and the base (1) are rigidly sealed, and a first O-shaped sealing ring (5) is arranged at the interface of the valve body and the base.

4. The pressurized replacing instrument one-way valve device for the water injection wellhead as claimed in claim 1, which is characterized in that: the lower end of the plug (9) is provided with a second O-shaped sealing ring (8), and after the plug is installed on the valve body, the second O-shaped sealing ring (8) is in contact sealing with the upper end face of the valve body (7).

5. The pressurized replacing instrument one-way valve device for the water injection wellhead as claimed in claim 1, which is characterized in that: the inner wall of the second inner cavity is provided with an internal thread, the test instrument is in threaded connection with the second inner cavity through a thread, and the plug (9) is in threaded connection with the second inner cavity.