CN213743948U

CN213743948U - Valve body assembly of high-pressure water injection pump

Info

Publication number: CN213743948U
Application number: CN202022471640.4U
Authority: CN
Inventors: 陈国辉; 王�义; 戴红兵; 孙鸿祥
Original assignee: Nanjing Liuheliu Coal Machinery Co ltd
Current assignee: Nanjing Liuheliu Coal Machinery Co ltd
Priority date: 2020-10-30
Filing date: 2020-10-30
Publication date: 2021-07-20
Anticipated expiration: 2030-10-30

Abstract

The utility model provides a valve body subassembly of high-pressure water injection pump, which comprises a valve body, be equipped with imbibition valve subassembly and flowing back valve subassembly in the valve body, the top fixed connection plug of valve body, the bottom of valve body is provided with the sealing rod, the sealing rod sets up the top at flowing back valve subassembly. Can play stable limiting displacement to the imbibition case through the restriction of gag lever post, spacing slider and the spacing seat of third, can make more stable of imbibition case motion, through reset spring's setting, can make timely the reseing of imbibition case, through the setting of the spacing seat of third, can play the guard action to reset spring, avoid reset spring to receive the too big impact of rivers, and then prolonged reset spring's life, through the setting of sealing washer one, can increase the leakproofness of imbibition case, ensured the stability of pressure, the utility model has the advantages of simple and reasonable structural design, convenient to use is swift, has very strong practicality.

Description

Valve body assembly of high-pressure water injection pump

Technical Field

The utility model relates to a high-pressure pump field specifically is a valve body subassembly of high-pressure water injection pump.

Background

The oilfield water injection system is an oilfield energy consumption major household and one of the main fields of oilfield investment, so that efficient water injection equipment is developed, the operation efficiency of the existing water injection system is improved, and the oilfield water injection system has important significance in reducing oilfield production cost. The early stage water injection is an effective method for improving the recovery ratio of the oil field, the formation pressure can be improved through artificial water injection, an oil layer has powerful oil displacement conditions, higher oil layer pressure is kept, various resistances are effectively overcome, long-term stable yield and high yield are achieved, and the high-pressure water injection pump plays an important role in a water injection process. As few oil fields in China are low-permeability oil reservoirs and the demand on high-pressure water injection pumps is increasing, the reciprocating water injection pumps are rapidly developed in recent years.

However, because the valve element of the valve body assembly of the existing water injection pump is connected with the valve body through the spring, when the valve element moves repeatedly under the action of pressure, the situation of unstable movement and even deviation is easy to occur, and further, the poor sealing property causes insufficient pressure, the high-efficiency water injection action is difficult to maintain, the service life of the valve element is easy to be damaged, and the operation efficiency is reduced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a valve body subassembly of high-pressure water injection pump has the characteristics of stable in use and long-lived.

To achieve the above objective, the present invention provides the following technical solutions: the valve body assembly of the high-pressure water injection pump comprises a valve body, wherein a liquid suction valve assembly and a liquid discharge valve assembly are arranged in the valve body, the top of the valve body is fixedly connected with a plug, a sealing rod is arranged at the bottom of the valve body and is arranged at the top of the liquid discharge valve assembly, a liquid inlet hole is formed in the valve body, the valve body assembly is provided with a plunger hole, and a filter sleeve is arranged in the liquid suction valve assembly.

The imbibition valve component comprises an imbibition valve body and a valve seat, the imbibition valve body is fixedly connected with the valve seat, the imbibition valve body and the valve seat are provided with a first liquid flow channel, the imbibition valve body is provided with an imbibition valve core, the imbibition valve core is used for opening and closing the first liquid flow channel, the top of the imbibition valve core is fixedly connected with a limiting rod, the inner wall of the imbibition valve body is fixedly connected with a third limiting seat, the end part of the limiting rod penetrates through the inner cavity of the third limiting seat and is fixedly connected with a limiting slide block, the top of the limiting slide block is fixedly connected with a reset spring, the top of the reset spring is fixedly connected with the inner wall of the third limiting seat, the inner wall of the third limiting seat is provided with a limiting slide groove, the limiting slide block slides in the limiting slide block, the imbibition valve core is sleeved with a first sealing ring, the first sealing ring is matched with the inner wall of the imbibition valve body, and when the liquid flow channel is closed, the sealing ring I is used for sealing.

The liquid discharge valve component comprises a liquid discharge valve body, the top of the liquid discharge valve body is connected with a screw cap, a liquid discharge valve core which can move up and down is arranged in the liquid discharge valve body, the top of the liquid discharge valve core is sleeved with a spring, the top of the spring is fixedly connected with the inner wall of the liquid discharge valve body, the top of the liquid discharge valve core is fixedly connected with a first limiting seat, the inner wall of the liquid discharge valve body is fixedly connected with a second limiting seat, the first limiting seat and the second limiting seat are both positioned in the spring and used for limiting the movement stroke of the liquid discharge valve core, the top of the first limiting seat is provided with a slot, the bottom of the second limiting seat is fixedly connected with an inserted link, the inserted bar moves in the slot, a liquid flow channel II is arranged in the liquid discharge valve body, the liquid discharge valve core is used for opening and closing the liquid flow channel II, and a sealing ring II is sleeved on the liquid discharge valve core.

Further, the utility model discloses in, the cover is equipped with O type circle two and retaining ring two on the disk seat.

Furthermore, in the utility model, the third limiting seat is provided with a vent hole.

Furthermore, in the present invention, the material of the O-ring is P229, and the material of the retainer ring is ptfe.

Furthermore, in the utility model discloses in, the material of imbibition case is 3Cr13 stainless steel.

Further, the utility model discloses in, be provided with the liquid outlet on the flowing back valve body.

Further, the utility model discloses in, be provided with O type circle one and retaining ring one on the flowing back valve body.

Further, in the utility model discloses a, the material of O type circle one is P229, the material of retaining ring one is polytetrafluoroethylene.

Further, in the utility model discloses in, the material of flowing back case is 3Cr13 stainless steel.

The beneficial effects are that the technical scheme of this application possesses following technological effect:

1. the utility model discloses a gag lever post, the restriction of spacing slider and the spacing seat of third can play stable limiting displacement to the imbibition case, can make more stable of imbibition case motion, through reset spring's setting, can make timely the reseing of imbibition case, through the setting of the spacing seat of third, can play the guard action to reset spring, avoid reset spring to receive the too big impact of rivers, and then prolonged reset spring's life, through the setting of sealing washer one, can increase the leakproofness of imbibition case, ensured the stability of pressure, the utility model has the advantages of simple and reasonable structural design, convenient to use is swift, has very strong practicality.

2. The utility model discloses a setting of first spacing seat and the spacing seat of second can inject the stroke of flowing back case, through the setting of inserted bar and slot, can guarantee the stability of flowing back case motion, prevents that the condition of skew from appearing in the flowing back case, through the setting of spring, can make timely the reseing of flowing back case, through the setting of sealing washer two, can increase the leakproofness of flowing back case, ensured the stability of pressure, the utility model has the advantages of simple and reasonable design, convenient to use is swift, has very strong practicality.

It should be understood that all combinations of the foregoing concepts and additional concepts described in greater detail below can be considered as part of the inventive subject matter of the present disclosure unless such concepts are mutually inconsistent.

The foregoing and other aspects, embodiments and features of the present teachings can be more fully understood from the following description taken in conjunction with the accompanying drawings. Additional aspects of the present invention, such as features and/or advantages of exemplary embodiments, will be apparent from the description which follows, or may be learned by practice of the specific embodiments in accordance with the teachings of the present invention.

Drawings

The drawings are not intended to be drawn to scale. In the drawings, each identical or nearly identical component that is illustrated in various figures may be represented by a like numeral. For purposes of clarity, not every component may be labeled in every drawing. Embodiments of various aspects of the present invention will now be described, by way of example, with reference to the accompanying drawings, in which:

fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is the structure schematic diagram of the liquid suction valve core of the utility model.

Fig. 3 is an enlarged view of a portion of a in fig. 2 according to the present invention.

Fig. 4 is a schematic structural view of the liquid discharge valve body of the present invention.

In the figures, the meaning of the reference numerals is as follows: 1. a valve body; 2. plugging by screwing; 3. a sealing rod; 4. a drain valve assembly; 5. a pipette valve assembly; 6. a liquid inlet hole; 7. a plunger hole; 8. a filter sleeve; 41. a drain valve body; 42. a screw cap; 43. a liquid discharge valve core; 44. a first limiting seat; 45. a second limiting seat; 46. a spring; 47. a first sealing ring; 48. a liquid outlet; 49. a first liquid flow channel; 410. a first O-shaped ring; 411. a first check ring; 51. a liquid suction valve body; 52. a valve seat; 53. a liquid suction valve core; 54. a limiting rod; 55. a limiting slide block; 56. a third limiting seat; 57. a return spring; 58. a limiting chute; 59. air holes are formed; 510. a second sealing ring; 511. a second liquid flow channel; 512. an O-shaped ring II; 513. and a second retainer ring.

Detailed Description

For a better understanding of the technical content of the present invention, specific embodiments are described below in conjunction with the accompanying drawings. In this disclosure, aspects of the present invention are described with reference to the accompanying drawings, in which a number of illustrative embodiments are shown. Embodiments of the present disclosure are not necessarily intended to include all aspects of the invention. It should be appreciated that the various concepts and embodiments described above, as well as those described in greater detail below, may be implemented in any of numerous ways, as the disclosed concepts and embodiments are not limited to any implementation. Additionally, some aspects of the present disclosure may be used alone or in any suitable combination with other aspects of the present disclosure.

As shown in fig. 1-4, a valve body assembly of a high-pressure water injection pump comprises a valve body 1, a liquid suction valve assembly 5 and a liquid discharge valve assembly 4 are arranged in the valve body 1, a plug 2 is fixedly connected to the top of the valve body 1, a sealing rod 3 is arranged at the bottom of the valve body 1, the sealing rod 3 is arranged at the top of the liquid discharge valve assembly 4, the valve body 1 is provided with a liquid inlet hole 6, the valve body assembly is provided with a plunger hole 7, and a filter sleeve 8 is arranged in the liquid suction valve assembly 5.

Further, the liquid suction valve group 5 comprises a liquid suction valve body 51 and a valve seat 52, the liquid suction valve body 51 is fixedly connected with the valve seat 52, the liquid suction valve body 51 and the valve seat 52 are provided with a liquid flow passage I511, the liquid suction valve body 51 is provided with a liquid suction valve core 53, and in the preferred embodiment, the material of the liquid suction valve core 53 is 3Cr13 stainless steel.

The liquid suction valve core 53 is used for opening and closing the liquid flow passage I511, the top of the liquid suction valve core 53 is fixedly connected with a limiting rod 54, the inner wall of the liquid suction valve body 51 is fixedly connected with a third limiting seat 56, the end part of the limiting rod 54 penetrates through the inner cavity of the third limiting seat 56 and is fixedly connected with a limiting slide block 55, the top of the limiting slide block 55 is fixedly connected with a reset spring 57, the reset spring 57 can be protected by the arrangement of the third limiting seat 56, the reset spring 57 is prevented from being impacted by overlarge water flow, the service life of the reset spring 57 is further prolonged, the top of the reset spring 57 is fixedly connected with the inner wall of the third limiting seat 56, the utility model discloses a stable limiting effect can be played to the liquid suction valve core 53 by the limitation of the limiting rod 54, the limiting slide block 55 and the third limiting seat 56, the movement of the liquid suction valve core 53 can be more stable, through the arrangement of the reset spring 57, the suction valve core 53 can be reset in time. Spacing spout 58 has been seted up to the 56 inner walls of third spacing seat, including the spacing slider 55 slides, the cover is equipped with a sealing washer 510 on the imbibition case 53, a sealing washer 510 and imbibition valve body 551 inner wall looks adaptation, and imbibition case 53 is when closing a liquid flow path 511, and a sealing washer 510 is used for sealing, through the setting of a sealing washer 510, can increase the leakproofness of imbibition case 53, has ensured the stability of pressure, the utility model discloses structural design is simple reasonable, and convenient to use is swift, has very strong practicality. Under the user passes through the plunger drive, imbibition case 53 up-and-down reciprocating motion reaches the purpose of imbibition, and imbibition case 53 drives gag lever post 54 motion, and gag lever post 54 drives spacing slider 55 compression reset spring 57, and spacing slider 55 slides in spacing spout 58, and reset spring 57 can make imbibition case 53 reset through gag lever post 54 and spacing slider 55.

In this embodiment, preferably, the valve seat 52 is sleeved with a second O-ring 512 and a second check ring 513, and the sealing performance of the liquid suction valve group 5 can be increased by the arrangement of the second O-ring 512 and the second check ring 513, and preferably, the material of the second O-ring 512 is P229 and the material of the second check ring 513 is ptfe.

The preferred of this embodiment, seted up bleeder vent 59 on the spacing seat 56 of third for the spacing seat 56 internal pressure of third is stable through the setting of bleeder vent 59, can guarantee the normal motion of spacing slider 55, prevents that spacing slider 55 can't push up.

The liquid discharge valve assembly 4 comprises a liquid discharge valve body 41, a screw cap 42 is connected to the top of the liquid discharge valve body 41, a liquid discharge valve core 43 capable of moving up and down is arranged in the liquid discharge valve body 41, a spring 46 is sleeved on the top of the liquid discharge valve core 43, the top of the spring 46 is fixedly connected with the inner wall of the liquid discharge valve body 41, a first limiting seat 44 is fixedly connected to the top of the liquid discharge valve core 43, a second limiting seat 45 is fixedly connected to the inner wall of the liquid discharge valve body 41, the first limiting seat 44 and the second limiting seat 45 are both positioned in the spring 46, the first limiting seat 44 and the second limiting seat 45 are used for limiting the movement stroke of the liquid discharge valve core 43, the stroke of the liquid discharge valve core 43 can be limited through the arrangement of the first limiting seat 44 and the second limiting seat 45, the liquid discharge valve core 43 can be timely reset through the arrangement of the spring 46, a slot is formed in the top of the first limiting seat 44, an inserted rod is fixedly connected to the bottom of the second limiting seat 45, the inserted bar moves in the slot, through the setting of inserted bar and slot, can guarantee the stability of flowing back case 43 motion, prevents that the condition of skew from appearing in flowing back case 43, has liquid flow channel 49 in flowing back valve body 41, and flowing back case 43 is used for opening and close liquid flow channel 49, and the cover is equipped with sealing washer 47 on flowing back case 43, through the setting of sealing washer 47, can increase the leakproofness of flowing back case 43, has ensured the stability of pressure, the utility model has the advantages of simple and reasonable design, convenient to use is swift, has very strong practicality. The up-and-down reciprocating motion of the liquid discharge valve core 43 is driven by the plunger by a user to achieve the purpose of liquid discharge, the liquid discharge valve core 43 drives the first limit seat 44 to move, the liquid discharge valve core 43 drives the compression spring 46, the inserted rod slides in the limit slot to play a role in limiting, the stability of the liquid discharge valve core 43 is improved, and the spring 46 can enable the liquid discharge valve core 43 to reset.

In the preferred embodiment, the liquid discharge valve body 41 is provided with a liquid outlet 48, and the liquid is discharged through the liquid outlet 48.

In the preferred embodiment, the drain valve body 41 is provided with the first O-ring 410 and the first check ring 411, the material of the first O-ring 410 is P229, the material of the first check ring 411 is ptfe, and the material of the drain valve core 43 is 3Cr13 stainless steel, so that the sealing performance of the drain valve assembly 4 is improved.

Although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the present invention. The present invention is intended to cover by those skilled in the art various modifications and adaptations of the invention without departing from the spirit and scope of the invention. Therefore, the protection scope of the present invention is subject to the claims.

Claims

1. The utility model provides a valve body subassembly of high-pressure water injection pump, includes valve body (1), its characterized in that: a liquid suction valve assembly (5) and a liquid discharge valve assembly (4) are arranged in the valve body (1), a plug (2) is fixedly connected to the top of the valve body (1), a sealing rod (3) is arranged at the bottom of the valve body (1), the sealing rod (3) is arranged at the top of the liquid discharge valve assembly (4), a liquid inlet hole (6) is formed in the valve body (1), the valve body assembly is provided with a plunger hole (7), and a filter sleeve (8) is arranged in the liquid suction valve assembly (5);

the liquid suction valve assembly (5) comprises a liquid suction valve body (51) and a valve seat (52), the liquid suction valve body (51) is fixedly connected with the valve seat (52), the liquid suction valve body (51) and the valve seat (52) are provided with a first liquid flow passage (511), the liquid suction valve body (51) is provided with a liquid suction valve core (53), the liquid suction valve core (53) is used for opening and closing the first liquid flow passage (511), the top of the liquid suction valve core (53) is fixedly connected with a limiting rod (54), the inner wall of the liquid suction valve body (51) is fixedly connected with a third limiting seat (56), the end part of the limiting rod (54) penetrates through an inner cavity of the third limiting seat (56) and is fixedly connected with a limiting sliding block (55), the top of the limiting sliding block (55) is fixedly connected with a return spring (57), the top of the return spring (57) is fixedly connected with the inner wall of the third limiting seat (56), and a limiting sliding groove (58) is formed in the inner wall of the third limiting seat (56), the limiting sliding block (55) slides in the liquid suction valve core (53), a first sealing ring (510) is sleeved on the liquid suction valve core (53), the first sealing ring (510) is matched with the inner wall of the liquid suction valve body (51), and when the liquid suction valve core (53) closes the first liquid flow channel (511), the first sealing ring (510) is used for sealing;

the liquid drainage valve assembly (4) comprises a liquid drainage valve body (41), a screw cap (42) is connected to the top of the liquid drainage valve body (41), a liquid drainage valve core (43) capable of moving up and down is arranged in the liquid drainage valve body (41), a spring (46) is sleeved on the top of the liquid drainage valve core (43), the top of the spring (46) is fixedly connected with the inner wall of the liquid drainage valve body (41), a first limiting seat (44) is fixedly connected to the top of the liquid drainage valve core (43), a second limiting seat (45) is fixedly connected to the inner wall of the liquid drainage valve body (41), the first limiting seat (44) and the second limiting seat (45) are both positioned in the spring (46), the first limiting seat (44) and the second limiting seat (45) are used for limiting the movement stroke of the liquid drainage valve core (43), a slot is formed in the top of the first limiting seat (44), and an insert rod is fixedly connected to the bottom of the second limiting seat (45), the inserted bar moves in the slot, a liquid flow channel II (49) is arranged in the liquid discharge valve body (41), the liquid discharge valve core (43) is used for opening and closing the liquid flow channel II (49), and a sealing ring II (47) is sleeved on the liquid discharge valve core (43).

2. The valve body assembly of a high-pressure water injection pump according to claim 1, wherein: and a second O-shaped ring (512) and a second check ring (513) are sleeved on the valve seat (52).

3. The valve body assembly of a high-pressure water injection pump according to claim 1, wherein: the third limiting seat (56) is provided with an air hole (59).

4. The valve body assembly of a high-pressure water injection pump according to claim 2, wherein: the material of the O-shaped ring II (512) is P229, and the material of the retainer ring II (513) is polytetrafluoroethylene.

5. The valve body assembly of a high-pressure water injection pump according to claim 1, wherein: the material of the liquid suction valve core (53) is 3Cr13 stainless steel.

6. The valve body assembly of a high-pressure water injection pump according to claim 1, wherein: the liquid discharge valve body (41) is provided with a liquid outlet (48).

7. The valve body assembly of a high-pressure water injection pump according to claim 1, wherein: the liquid discharge valve body (41) is provided with a first O-shaped ring (410) and a first check ring (411).

8. The valve body assembly of a high-pressure water injection pump according to claim 7, wherein: the material of the O-shaped ring I (410) is P229, and the material of the retainer ring I (411) is polytetrafluoroethylene.

9. The valve body assembly of a high-pressure water injection pump according to claim 1, wherein: the material of the liquid discharge valve core (43) is 3Cr13 stainless steel.