CN213981155U

CN213981155U - High-pressure water injection pump

Info

Publication number: CN213981155U
Application number: CN202022466408.1U
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: 2021-08-17
Anticipated expiration: 2030-10-30

Abstract

The utility model provides a high-pressure water injection pump, the power distribution box comprises a box body, be provided with bent axle connecting rod slider mechanism in the box, be provided with air cleaner on the box, be provided with the cylinder liner subassembly in the box, be provided with the valve body subassembly on the box, be provided with the relief valve on the valve body subassembly. 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.

Description

High-pressure water injection pump

Technical Field

The utility model relates to a high-pressure pump field specifically is a 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 high-pressure water injection pump has the characteristics of stable in utilization and long-lived.

To achieve the above objective, the present invention provides the following technical solutions: a high-pressure water injection pump comprises a box body, wherein a crankshaft connecting rod sliding block mechanism is arranged in the box body, an air filter is arranged on the box body, a cylinder sleeve assembly is arranged in the box body, a valve body assembly is arranged on the box body, and a safety valve is arranged on the valve body assembly;

the valve body assembly comprises a valve body, a liquid suction valve assembly and a liquid discharge valve assembly are arranged in the valve body, a plug is fixedly connected to the top of the valve body, a sealing rod is arranged at the bottom of the valve body and is arranged at the top of the liquid discharge valve assembly, the valve body is provided with a liquid inlet hole, the valve body assembly is provided with a plunger hole, and a filter sleeve is arranged in the liquid suction valve assembly;

the liquid suction valve component comprises a liquid suction valve body and a valve seat, the liquid suction valve body is fixedly connected with the valve seat, the liquid suction valve body and the valve seat are provided with a first liquid flow channel, the liquid suction valve body is provided with a liquid suction valve core, the liquid suction valve core is used for opening and closing the first liquid flow channel, the top of the liquid suction valve core is fixedly connected with a limiting rod, the inner wall of the liquid suction 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, a first sealing ring is sleeved on the liquid suction valve core, the first sealing ring is matched with the inner wall of the liquid suction 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 one and retaining ring one on the disk seat.

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

Furthermore, in the utility model discloses, retaining ring one's material is polytetrafluoroethylene.

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 two and retaining ring two on the flowing back valve body.

Furthermore, in the utility model discloses in, the material of retaining ring two 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 diagram of the valve body assembly of the present invention.

Fig. 3 is the structure schematic diagram of the liquid suction valve core of the present invention.

Fig. 4 is an enlarged view of a portion of a in fig. 3 according to the present invention.

Fig. 5 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. a crankshaft connecting rod slider mechanism; 3. an air cleaner; 4. a cylinder liner assembly; 5. a safety valve; 6. a valve body assembly; 61. a valve body; 62. plugging by screwing; 63. a sealing rod; 64. a drain valve assembly; 65. a pipette valve assembly; 66. a liquid inlet hole; 67. a plunger hole; 68. a filter sleeve; 641. a drain valve body; 642. a screw cap; 643. a liquid discharge valve core; 644. a first limiting seat; 645. a second limiting seat; 646. a spring; 647. a first sealing ring; 648. a liquid outlet; 649. a first liquid flow channel; 6410. a first O-shaped ring; 6411. a second check ring; 651. a liquid suction valve body; 652. a valve seat; 653. a liquid suction valve core; 654. a limiting rod; 655. a limiting slide block; 656. a third limiting seat; 657. a return spring; 658. a limiting chute; 659. air holes are formed; 6510. a second sealing ring; 6511. a second liquid flow channel; 6512. an O-shaped ring II; 6513. and a first check 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.

Referring to fig. 1-5, a high-pressure water injection pump comprises a box body 1, a crankshaft connecting rod slide block mechanism 2 is arranged in the box body 1, an air filter 3 is arranged on the box body 1, a cylinder sleeve assembly 4 is arranged in the box body 1, a valve body assembly 6 is arranged on the box body 1, and a safety valve 5 is arranged on the valve body assembly 6.

The valve body assembly comprises a valve body 61, a liquid suction valve assembly 65 and a liquid discharge valve assembly 64 are arranged in the valve body 61, the top of the valve body 61 is fixedly connected with a plug 62, a sealing rod 63 is arranged at the bottom of the valve body 61, the sealing rod 63 is arranged at the top of the liquid discharge valve assembly 64, the valve body 64 is provided with a liquid inlet hole 66, the valve body assembly is provided with a plunger hole 67, and a filter sleeve 68 is arranged in the liquid suction valve assembly 65.

Further, the liquid suction valve group 65 includes a liquid suction valve body 651 and a valve seat 652, the liquid suction valve body 651 and the valve seat 652 are fixedly connected, the liquid suction valve body 651 and the valve seat 652 have a liquid flow passage 6511, the liquid suction valve body 651 is provided with a liquid suction valve core 653, and in the preferred embodiment, the liquid suction valve core 653 is made of 3Cr13 stainless steel.

The liquid suction valve core 653 is used for opening and closing the liquid flow passage one 6511, the top of the liquid suction valve core 653 is fixedly connected with a limiting rod 654, the inner wall of the liquid suction valve body 651 is fixedly connected with a third limiting seat 656, the end part of the limiting rod 654 penetrates through the inner cavity of the third limiting seat 656 and is fixedly connected with a limiting slider 655, the top of the limiting slider 655 is fixedly connected with a return spring 657, through the arrangement of the third limiting seat 656, the return spring 657 can be protected, the return spring 657 is prevented from being impacted by excessive water flow, the service life of the return spring 657 is further prolonged, the top of the return spring 657 is fixedly connected with the inner wall of the third limiting seat 656, the utility model discloses a stable limiting function can be played to the liquid suction valve core 653 through the limitation of the limiting rod 654, the limiting slider 655 and the third limiting seat 656, the movement of the liquid suction valve core 653 is more stable, through the arrangement of the return spring 657, the suction valve core 653 can be reset in time. Spacing spout 658 has been seted up to the spacing seat 656 inner wall of third, slide including spacing slider 655, the cover is equipped with a sealing washer 6510 on the imbibition case 653, a sealing washer 6510 and imbibition valve body 6551 inner wall looks adaptation, and imbibition case 653 is when closing a liquid flow path 6511, and a sealing washer 6510 is used for sealing, through the setting of a sealing washer 6510, can increase the leakproofness of imbibition case 653, 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. The liquid suction valve core 653 reciprocates up and down under the driving of a user through the plunger to achieve the purpose of liquid suction, the liquid suction valve core 653 drives the limiting rod 654 to move, the limiting rod 654 drives the limiting slide block 655 to compress the reset spring 657, the limiting slide block 655 slides in the limiting slide groove 658, and the reset spring 657 can reset the liquid suction valve core 653 through the limiting rod 654 and the limiting slide block 655.

Preferably, in this embodiment, valve seat 652 is fitted with O-ring 6512 and retainer ring 6513, and by providing O-ring 6512 and retainer ring 6513, the sealing ability of the valve assembly 65 can be increased, and the material of retainer ring 6513 is ptfe.

The preferred of this embodiment, set up bleeder vent 659 on the third spacing seat 656, through the setting of bleeder vent 659 for pressure is stable in the third spacing seat 656, can guarantee the normal motion of spacing slider 655, prevents that spacing slider 655 can't push up.

The liquid discharge valve assembly 64 comprises a liquid discharge valve body 641, a screw cover 642 is connected to the top of the liquid discharge valve body 641, a liquid discharge valve core 643 capable of moving up and down is arranged in the liquid discharge valve body 641, a spring 646 is sleeved on the top of the liquid discharge valve core 643, the top of the spring 646 is fixedly connected with the inner wall of the liquid discharge valve body 641, a first limiting seat 644 is fixedly connected to the top of the liquid discharge valve core 643, a second limiting seat 645 is fixedly connected to the inner wall of the liquid discharge valve body 641, the first limiting seat 644 and the second limiting seat 645 are both located inside the spring 646, the first limiting seat 644 and the second limiting seat 645 are used for limiting the movement stroke of the liquid discharge valve core 643, the stroke of the liquid discharge valve core 643 can be limited through the arrangement of the first limiting seat 644 and the second limiting seat, the liquid discharge valve core 643 can be timely reset through the arrangement of the spring 646, a slot is formed in the top of the first limiting seat 644, and an inserted rod is fixedly connected to the bottom of the second limiting seat 645, the inserted bar moves in the slot, through the setting of inserted bar and slot, can guarantee the stability of flowing back case 643 motion, prevents that flowing back case 643 from the condition that the skew appears, has liquid flow path 649 in the flowing back valve body 641, and flowing back case 643 is used for opening and close liquid flow path 649, and the cover is equipped with sealing washer 647 on flowing back case 643, through the setting of sealing washer 647, can increase the leakproofness of flowing back case 643, 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. The user drives the lower reciprocating motion of flowing back case 643 through the plunger, reaches the purpose of flowing back, and flowing back case 643 drives the motion of first spacing seat 644, and flowing back case 643 drives compression spring 646, and the inserted bar slides in spacing slot, plays spacing effect, increases the stability of flowing back case 643, and spring 646 can make flowing back case 643 reset.

Preferably, the liquid discharge valve 641 is provided with a liquid outlet 648, and the liquid is discharged through the liquid outlet 648.

In this embodiment, preferably, the drain valve body 641 is provided with a second O-ring 6410 and a second retainer ring 6411, the material of the second retainer ring 6411 is teflon, and the material of the drain valve spool 643 is 3Cr13 stainless steel, so that the sealing performance of the drain valve assembly 64 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. A high-pressure water injection pump comprises a box body (1), wherein a crankshaft connecting rod sliding block mechanism (2) is arranged in the box body (1), an air filter (3) is arranged on the box body (1), a cylinder sleeve assembly (4) is arranged in the box body (1), a valve body assembly (6) is arranged on the box body (1), and a safety valve (5) is arranged on the valve body assembly (6);

valve body subassembly (6) include valve body (61), its characterized in that: a liquid suction valve assembly (65) and a liquid discharge valve assembly (64) are arranged in the valve body (61), a plug (62) is fixedly connected to the top of the valve body (61), a sealing rod (63) is arranged at the bottom of the valve body (61), the sealing rod (63) is arranged at the top of the liquid discharge valve assembly (64), a liquid inlet hole (66) is formed in the valve body (61), the valve body assembly is provided with a plunger hole (67), and a filter sleeve (68) is arranged in the liquid suction valve assembly (65);

the liquid suction valve assembly (65) comprises a liquid suction valve body (651) and a valve seat (652), the liquid suction valve body (651) is fixedly connected with the valve seat (652), the liquid suction valve body (651) and the valve seat (652) are provided with a first liquid flow channel (6511), the liquid suction valve body (651) is provided with a liquid suction valve core (653), the liquid suction valve core (653) is used for opening and closing the first liquid flow channel (6511), the top of the liquid suction valve core (653) is fixedly connected with a limiting rod (654), the inner wall of the liquid suction valve body (651) is fixedly connected with a third limiting seat (656), the end part of the limiting rod (654) penetrates through the inner cavity of the third limiting seat (656) and is fixedly connected with a limiting slide block (655), the top of the limiting slide block (655) is fixedly connected with a return spring (657), the top of the return spring (657) is fixedly connected with the inner wall of the third limiting seat (656), and the inner wall of the third limiting seat (656) is provided with a limiting slide groove (658), the limiting sliding block (655) slides in the inner part, a first sealing ring (6510) is sleeved on the liquid suction valve core (653), the first sealing ring (6510) is matched with the inner wall of the liquid suction valve body (651), and when the liquid suction valve core (653) closes the first liquid flow channel (6511), the first sealing ring (6510) is used for sealing;

the liquid drainage valve assembly (64) comprises a liquid drainage valve body (641), a screw cover (642) is connected to the top of the liquid drainage valve body (641), a liquid drainage valve core (643) capable of moving up and down is arranged in the liquid drainage valve body (641), a spring (646) is sleeved on the top of the liquid drainage valve core (643), the top of the spring (646) is fixedly connected with the inner wall of the liquid drainage valve body (641), a first limiting seat (644) is fixedly connected to the top of the liquid drainage valve core (643), a second limiting seat (645) is fixedly connected to the inner wall of the liquid drainage valve body (641), the first limiting seat (644) and the second limiting seat (645) are both located inside the spring (646), the first limiting seat (644) and the second limiting seat (645) are used for limiting the movement stroke of the liquid drainage valve core (643), a slot is formed in the top of the first limiting seat (644), and an insert rod is fixedly connected to the bottom of the second limiting seat (645), the insert rod moves in the insert groove, a liquid flow channel II (649) is arranged in the liquid discharge valve body (641), the liquid discharge valve core (643) is used for opening and closing the liquid flow channel II (649), and a sealing ring II (647) is sleeved on the liquid discharge valve core (643).

2. The high-pressure water injection pump according to claim 1, characterized in that: and the valve seat (652) is sleeved with a first O-shaped ring (6512) and a first retainer ring (6513).

3. The high-pressure water injection pump according to claim 1, characterized in that: and the third limiting seat (656) is provided with an air hole (659).

4. The high-pressure water injection pump according to claim 2, characterized in that: the material of the first retainer ring (6513) is polytetrafluoroethylene.

5. The high-pressure water injection pump according to claim 1, characterized in that: the material of the liquid suction valve core (653) is 3Cr13 stainless steel.

6. The high-pressure water injection pump according to claim 1, characterized in that: and a liquid outlet (648) is arranged on the liquid discharge valve body (641).

7. The high-pressure water injection pump according to claim 1, characterized in that: and the liquid discharge valve body (641) is provided with a second O-shaped ring (6410) and a second check ring (6411).

8. The high-pressure water injection pump according to claim 7, wherein: the second retainer ring (6411) is made of polytetrafluoroethylene.

9. The high-pressure water injection pump according to claim 1, characterized in that: the material of the liquid discharge valve core (643) is 3Cr13 stainless steel.