CN218467811U - Be suitable for high impurity quality of water plunger pump valve structure - Google Patents
Be suitable for high impurity quality of water plunger pump valve structure Download PDFInfo
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- CN218467811U CN218467811U CN202222577647.3U CN202222577647U CN218467811U CN 218467811 U CN218467811 U CN 218467811U CN 202222577647 U CN202222577647 U CN 202222577647U CN 218467811 U CN218467811 U CN 218467811U
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Abstract
The utility model relates to an oil field limit water reinjection plunger pump technical field, concretely relates to be suitable for high impurity quality of water plunger pump valve structure. The plunger pump comprises a combined valve seat arranged in a pump cavity of a plunger pump body, wherein a liquid outlet passage and a liquid inlet passage are arranged in the combined valve seat; the outlet of the liquid outlet passage is provided with a liquid outlet valve, and the inlet of the liquid inlet passage is provided with a liquid inlet valve. The service life of the combined valve is prolonged by 2-3 times by changing the plane sealing into the conical surface sealing. The plunger pump is suitable for the working condition occasions of high impurity-containing water reinjection without filtration treatment, and can effectively solve the problems of short service life of a pump valve at the horizontal hydraulic end of the plunger pump, large maintenance workload, low pump efficiency and high energy consumption.
Description
Technical Field
The utility model relates to an oil field limit water reinjection plunger pump technical field, concretely relates to be suitable for high impurity quality of water plunger pump valve structure.
Background
In order to solve the problem of recovery water treatment, most of oil fields adopt a mode of reinjection to the edge of an oil layer. Because the water injection pressure is high, the adopted equipment is a plunger pump, and the hydraulic end of the traditional plunger pump is of a horizontal combination valve structure, so that the structure has high requirement on water quality. The oilfield reinjection water is not subjected to treatment measures such as oil removal and filtration, so that the oilfield reinjection water has the characteristics of high impurity content, high oil content, high degree of mineralization, high temperature (60-70 ℃), strong corrosivity and the like. The reinjection water contains more oil and mechanical impurities, crude oil is adhered to the outer surface of the impurities, the pump valve plate is not tightly closed due to the adhesion of the impurities to the valve plate, the valve plate is punctured under high pressure, the pump effect is continuously reduced, the service life of the pump valve is short, in addition, the pump valve is opened and closed by a spring, the pump valve is frequently opened and closed by high-frequency opening and closing movement, faults such as fatigue fracture of the spring, tripping of a fixing screw of the valve plate and the like are often caused, the valve is failed, the leakage quantity is large, the equipment failure rate is high, the pump effect is low, and the energy consumption is increased.
However, in the process of oil field water reinjection, valve plate puncture, spring fracture and valve plate falling of the horizontal plunger pump account for 92% of total faults, the maintenance period is about 10-60 days, and the horizontal plunger pump is not suitable for oil field water reinjection working conditions.
Through retrieval patent documents, the structural characteristics of the horizontal hydraulic end of the existing plunger pump are obviously different from those of the present application, and the function of the horizontal hydraulic end is not suitable for the working conditions of high oil content and high impurity content of reinjection water.
A combination valve seat structure as disclosed in chinese utility model with application number CN201821014282.0, which comprises: the discharge valve seat comprises a discharge valve passage hole arranged in the middle; the suction valve seat comprises a liquid inlet hole, a liquid outlet hole and a suction valve channel hole communicated with the liquid inlet hole, a retreat hole communicated with the liquid outlet hole is arranged in the middle of the head end of the suction valve seat in a concave mode, the discharge valve channel hole is communicated with the retreat hole, the head end of the suction valve seat is connected with the tail end of the discharge valve seat in a sealing mode, at the moment, the middle of the tail end of the discharge valve seat stretches into the retreat hole and has a gap with the bottom of the retreat hole, and the peripheral end face of the tail end of the discharge valve seat and the head end of the suction valve seat are located in a hole retreat peripheral end face seal mode. The valve seat structure of the combined valve has the advantages of unobstructed flow channel and improved sealing performance and reliability when the valve is closed. However, the function of the device is not suitable for the working conditions of high oil content and high impurity content of the reinjection water.
If again like the china utility model of bulletin number CN203770125U disclose a combination valve disk seat, this disk seat is split type, original whole disk seat, fall into two parts disk seat one and disk seat two and process, disk seat one and disk seat two are sealed through the nonmetal sealed pad in double inclined planes, the utility model has the advantages of can be to the combination disk seat do littleer, use with small model, little flow, high pressure occasion, convenient processing: about 465 can only be accomplished to original combination valve disk seat external diameter minimum, use the utility model discloses 40 can be accomplished to the disk seat. However, the function is not suitable for the working conditions of high oil content and high impurity content of the reinjection water.
SUMMERY OF THE UTILITY MODEL
To foretell not enough, the utility model provides a be suitable for high impurity quality of water plunger pump hydraulic pressure end pump valve structure.
The utility model provides a technical scheme that its technical problem adopted is: a hydraulic end pump valve structure of a plunger pump suitable for high impurity water quality comprises a combined valve seat arranged in a pump cavity of a plunger pump body, wherein a liquid outlet passage and a liquid inlet passage are arranged in the combined valve seat;
the outlet of the liquid outlet passage is provided with a liquid outlet valve, and the inlet of the liquid inlet passage is provided with a liquid inlet valve.
Further, the liquid outlet valve comprises a liquid outlet valve pressure sleeve and a liquid outlet valve core, a pressure sleeve hole is formed in the liquid outlet valve pressure sleeve, the liquid outlet valve core comprises a liquid outlet valve stem and a liquid outlet valve boss, the liquid outlet valve stem is connected in the pressure sleeve hole in a sliding mode, the liquid outlet valve boss is matched with an outlet of the liquid outlet passage in a sealing mode, and a liquid outlet valve spring is arranged between the liquid outlet valve pressure sleeve and the liquid outlet valve boss;
the liquid inlet valve comprises a liquid inlet valve gland and a plurality of liquid inlet valve spools, a plurality of gland holes are formed in the liquid inlet valve gland, each liquid inlet valve spool comprises a liquid inlet valve spool and a liquid inlet valve boss, the liquid inlet valve spool is connected in the corresponding gland hole in a sliding mode, the liquid inlet valve bosses are in sealing fit with inlets of liquid inlet passages, and a liquid inlet valve spring is arranged between the liquid inlet valve gland and the liquid inlet valve bosses.
Further, the liquid outlet passage comprises a liquid outlet through hole which penetrates through the center of the combined valve seat; the liquid inlet passage comprises a plurality of liquid inlet blind holes formed around the liquid outlet through hole and a plurality of liquid inlets formed in the circumferential direction of the combined valve seat and communicated with the liquid inlet blind holes.
Furthermore, the pressing sleeve hole is arranged in the center of the liquid outlet valve pressing sleeve, and a plurality of liquid outlet holes which are uniformly distributed are formed in the circumferential direction of the liquid outlet valve pressing sleeve;
the avoiding through hole communicated with the liquid outlet through hole is formed in the middle of the liquid inlet valve gland, the plurality of gland holes are uniformly distributed around the avoiding through hole, and the liquid inlet holes are uniformly distributed in the circumferential direction of the liquid inlet valve gland.
The liquid outlet valve and the liquid inlet valve are all one-way valves, when the plunger is pulled outwards, the working pressure is reduced, the liquid outlet valve is closed, the liquid inlet valve is opened, and liquid enters; when the plunger is pushed inwards, the working pressure rises, the liquid outlet valve is closed, and when the working pressure is higher than the outlet pressure, the liquid outlet valve is opened.
Liquid inlet path: plunger pump body pump cavity → liquid inlet blind hole → liquid inlet hole → avoiding through hole
A liquid outlet path: the avoiding through hole → the liquid outlet hole → the pump cavity of the plunger pump body is optimized, and the liquid inlet is a horn-shaped opening.
Furthermore, the liquid outlet valve pressure sleeve and the liquid inlet valve pressure cover are connected with the combined valve seat through fastening screws.
Furthermore, the liquid outlet valve boss and the liquid inlet valve boss are both cones, and the taper range of the cones is 30-45 degrees.
As optimization, one liquid outlet valve spring is arranged and sleeved outside the liquid outlet valve column; the liquid inlet valve is provided with one spring which is sleeved outside the liquid inlet valve column.
As optimization, a plurality of liquid outlet valve springs are arranged and uniformly distributed around the liquid outlet valve column; the liquid inlet valve spring is provided with a plurality of springs which are evenly distributed around the liquid inlet valve column.
The utility model has the advantages that:
1. the traditional combination valve adopts plane sealing (see attached figure 2), has the defects of short service life of the valve plate and poor sealing effect, and the utility model discloses change plane sealing into conical surface sealing, prolong the life of the combination valve by 2-3 times.
2. The plunger pump is suitable for the working condition occasions of high-impurity-content water reinjection without filtration treatment, and can effectively solve the problems of short service life, large maintenance workload, low pump efficiency and high energy consumption of a pump valve at the horizontal hydraulic end of the plunger pump.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the installation effect of the present invention;
FIG. 3 is a schematic view of a conventional combination valve;
FIG. 4 is a schematic view of a spring of a liquid inlet valve in embodiment 1;
fig. 5 is a schematic view of a spring of the liquid inlet valve in embodiment 2.
The plunger pump comprises a liquid inlet valve gland 1, a liquid inlet valve gland 2, a liquid inlet valve core 3, a liquid inlet valve spring 4, a combined valve seat 5, a liquid outlet valve gland 6, a liquid outlet valve core 7, a liquid outlet valve spring 8, a plunger pump body 9 and a plunger.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without making creative efforts belong to the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the directions or positional relationships based on the directions or positional relationships shown in the drawings, or the directions or positional relationships that the products of the present invention are usually placed when used, and are only for the convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element indicated must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Example 1:
the hydraulic end pump valve structure of the plunger pump suitable for high impurity water quality as shown in fig. 1-4 comprises a combined valve seat 4 arranged in a pump cavity of a plunger pump body 8, wherein a liquid outlet passage and a liquid inlet passage are arranged in the combined valve seat 4; the outlet of the liquid outlet passage is provided with a liquid outlet valve, and the inlet of the liquid inlet passage is provided with a liquid inlet valve.
In this embodiment, the liquid outlet valve includes a liquid outlet valve pressing sleeve 5 and a liquid outlet valve core 6, a pressing sleeve hole is formed in the liquid outlet valve pressing sleeve 5, the liquid outlet valve core 6 includes a liquid outlet valve stem and a liquid outlet valve boss, the liquid outlet valve stem is slidably connected in the pressing sleeve hole, the liquid outlet valve boss is hermetically matched with an outlet of the liquid outlet passage, and a liquid outlet valve spring 7 is arranged between the liquid outlet valve pressing sleeve 5 and the liquid outlet valve boss;
the liquid inlet valve comprises a liquid inlet valve gland 1 and a plurality of liquid inlet valve spools 2, a plurality of gland holes are formed in the liquid inlet valve gland 1, each liquid inlet valve spool 2 comprises a liquid inlet valve spool and a liquid inlet valve boss, the liquid inlet valve spools are connected in the gland holes in a sliding mode, the liquid inlet valve bosses are matched with inlets of liquid inlet passages in a sealing mode, and a liquid inlet valve spring 3 is arranged between the liquid inlet valve gland 1 and the liquid inlet valve bosses.
In this embodiment, the liquid outlet passage includes a liquid outlet through hole formed through the center of the combined valve seat 4; the liquid inlet passage comprises a plurality of liquid inlet blind holes formed around the liquid outlet through holes and a plurality of liquid inlets formed in the circumferential direction of the combined valve seat 4 and communicated with the liquid inlet blind holes.
In this embodiment, the pressing sleeve hole is arranged in the center of the liquid outlet valve pressing sleeve 5, and a plurality of liquid outlet holes are uniformly distributed in the circumferential direction of the liquid outlet valve pressing sleeve 5;
an avoiding through hole communicated with the liquid outlet through hole is formed in the middle of the liquid inlet valve gland 1, the plurality of gland holes are uniformly distributed around the avoiding through hole, and a plurality of uniformly distributed liquid inlet holes are formed in the circumferential direction of the liquid inlet valve gland 1.
In this embodiment, the liquid inlet is a bell mouth.
In this embodiment, the liquid outlet valve pressure sleeve 5 and the liquid inlet valve pressure cover 1 are both connected with the combined valve seat 4 through fastening screws.
In this embodiment, the liquid outlet valve boss and the liquid inlet valve boss are both cones, and the taper range of the cones is 30-45 °.
In this embodiment, one liquid outlet valve spring 7 is arranged and sleeved outside the liquid outlet valve stem; the liquid inlet valve spring 3 is provided with one and is sleeved outside the liquid inlet valve column.
Example 2:
as shown in fig. 1 to 3 and fig. 5, this embodiment is substantially the same as embodiment 1 except that:
in this embodiment, the liquid outlet valve springs 7 are provided in a plurality and are uniformly distributed around the liquid outlet valve column; the liquid inlet valve spring 3 is provided with a plurality of springs which are evenly distributed around the liquid inlet valve column.
The working principle is as follows: the utility model provides a plunger pump hydraulic end pump valve structure suitable for high impurity water quality, wherein, the liquid outlet valve and the liquid inlet valve are all one-way valves, when the plunger 9 is pulled outwards, the working pressure is reduced, the liquid outlet valve is closed, the liquid inlet valve is opened, and the liquid enters; when the plunger 9 is pushed inwards, the working pressure rises, the liquid outlet valve is closed, and when the working pressure is higher than the outlet pressure, the liquid outlet valve is opened.
Liquid inlet path: the plunger pump body 8 pump chamber → liquid inlet (trumpet-shaped mouth) → liquid inlet blind hole → (opening the liquid inlet valve core 2 by vacuum suction force) → (dodging the through hole);
liquid outlet path: the avoiding through hole → the liquid outlet through hole → (pushing the liquid outlet valve core 6 open by pressure) the liquid outlet hole → the pump cavity of the plunger pump body 8.
The avoidance through hole, the liquid inlet hole, the liquid outlet through hole and the liquid outlet hole are not labeled in the attached drawings, but can be easily found in the attached drawings by a person skilled in the art according to the written description.
The above embodiments are only specific cases of the present invention, and the protection scope of the present invention includes but is not limited to the forms and styles of the above embodiments, and any suitable changes or modifications made thereto by those skilled in the art according to the claims of the present invention shall fall within the protection scope of the present invention.
Claims (9)
1. The utility model provides a be suitable for high impurity quality of water plunger pump valve structure which characterized in that: the plunger pump comprises a combined valve seat arranged in a pump cavity of a plunger pump body, wherein a liquid outlet passage and a liquid inlet passage are arranged in the combined valve seat;
the outlet of the liquid outlet passage is provided with a liquid outlet valve, and the inlet of the liquid inlet passage is provided with a liquid inlet valve.
2. The plunger pump valve structure suitable for high impurity water quality as claimed in claim 1, characterized in that: the liquid outlet valve comprises a liquid outlet valve pressing sleeve and a liquid outlet valve core, a pressing sleeve hole is formed in the liquid outlet valve pressing sleeve, the liquid outlet valve core comprises a liquid outlet valve post and a liquid outlet valve boss, the liquid outlet valve post is connected in the pressing sleeve hole in a sliding mode, the liquid outlet valve boss is matched with an outlet of the liquid outlet channel in a sealing mode, and a liquid outlet valve spring is arranged between the liquid outlet valve pressing sleeve and the liquid outlet valve boss;
the liquid inlet valve comprises a liquid inlet valve gland and a plurality of liquid inlet valve spools, a plurality of gland holes are formed in the liquid inlet valve gland, each liquid inlet valve spool comprises a liquid inlet valve spool and a liquid inlet valve boss, the liquid inlet valve spool is connected in the corresponding gland hole in a sliding mode, the liquid inlet valve bosses are in sealing fit with inlets of liquid inlet passages, and a liquid inlet valve spring is arranged between the liquid inlet valve gland and the liquid inlet valve bosses.
3. The plunger pump valve structure suitable for high impurity water quality as claimed in claim 2, characterized in that: the liquid outlet passage comprises a liquid outlet through hole which penetrates through the center of the combined valve seat; the liquid inlet passage comprises a plurality of liquid inlet blind holes formed around the liquid outlet through hole and a plurality of liquid inlets formed in the circumferential direction of the combined valve seat and communicated with the liquid inlet blind holes.
4. The plunger pump valve structure suitable for high impurity water quality as claimed in claim 3, characterized in that: the liquid outlet valve pressing sleeve is provided with a plurality of liquid outlet holes which are uniformly distributed in the circumferential direction;
the center of the liquid inlet valve gland is provided with an avoidance through hole communicated with the liquid outlet through hole, the plurality of gland holes are uniformly distributed around the avoidance through hole, and the circumferential direction of the liquid inlet valve gland is provided with a plurality of uniformly distributed liquid inlet holes.
5. The plunger pump valve structure suitable for high impurity water quality as claimed in claim 3, characterized in that: the liquid inlet is a horn-shaped opening.
6. The plunger pump valve structure suitable for high impurity water quality as claimed in claim 2, characterized in that: the liquid outlet valve pressure sleeve and the liquid inlet valve pressure cover are connected with the combined valve seat through fastening screws.
7. The plunger pump valve structure suitable for high impurity water quality as claimed in claim 2, characterized in that: the liquid outlet valve boss and the liquid inlet valve boss are both cones, and the taper range of the cones is 30-45 degrees.
8. The plunger pump valve structure suitable for high impurity water quality as claimed in claim 4, characterized in that: one liquid outlet valve spring is arranged and sleeved outside the liquid outlet valve column; the liquid inlet valve is provided with one spring which is sleeved outside the liquid inlet valve column.
9. The plunger pump valve structure suitable for high impurity water quality as claimed in claim 4, characterized in that: the liquid outlet valve springs are arranged and evenly distributed around the liquid outlet valve column; the liquid inlet valve spring is provided with a plurality of springs which are evenly distributed around the liquid inlet valve column.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222577647.3U CN218467811U (en) | 2022-09-28 | 2022-09-28 | Be suitable for high impurity quality of water plunger pump valve structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222577647.3U CN218467811U (en) | 2022-09-28 | 2022-09-28 | Be suitable for high impurity quality of water plunger pump valve structure |
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| Publication Number | Publication Date |
|---|---|
| CN218467811U true CN218467811U (en) | 2023-02-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222577647.3U Active CN218467811U (en) | 2022-09-28 | 2022-09-28 | Be suitable for high impurity quality of water plunger pump valve structure |
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| CN (1) | CN218467811U (en) |
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- 2022-09-28 CN CN202222577647.3U patent/CN218467811U/en active Active
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