CN217354718U - Miniature high-pressure plunger pump check valve throttling arrangement - Google Patents
Miniature high-pressure plunger pump check valve throttling arrangement Download PDFInfo
- Publication number
- CN217354718U CN217354718U CN202120863034.9U CN202120863034U CN217354718U CN 217354718 U CN217354718 U CN 217354718U CN 202120863034 U CN202120863034 U CN 202120863034U CN 217354718 U CN217354718 U CN 217354718U
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- Prior art keywords
- plunger
- oil
- rotating disc
- low
- cylinder body
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- 238000004519 manufacturing process Methods 0.000 abstract description 11
- 238000012423 maintenance Methods 0.000 abstract description 7
- 230000005540 biological transmission Effects 0.000 abstract description 5
- 238000005096 rolling process Methods 0.000 description 16
- 239000012530 fluid Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 239000003129 oil well Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
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Abstract
The utility model relates to a miniature high-pressure plunger pump check valve throttling arrangement sets up the oil feed passageway of constituteing by main oil duct and vice oil duct in the cylinder body, is provided with the check valve in the main oil duct, simplifies the oil circuit in the cylinder body, makes the manufacturing process of plunger pump become simple, has reduced production and later maintenance's cost. The rotating disc and the rotating shaft are integrally formed, so that the energy loss in the transmission process is greatly reduced, the working efficiency is improved, the parts in the plunger pump are reduced, the structure of the plunger pump is simpler, and the manufacturing cost and the later maintenance cost of the plunger pump are reduced.
Description
Technical Field
The utility model belongs to plunger pump structure field, especially a miniature high-pressure plunger pump check valve throttling arrangement.
Background
The plunger pump may be used for oil transportation during oil production in an oil well. The structure of a traditional plunger pump is as follows: including low-pressure chamber, cylinder body and high-pressure chamber, a plurality of plunger heads in the low-pressure chamber all support on the rolling disc surface, and the rolling disc is rotatory to provide pressure to the plunger in proper order and make plunger reciprocating motion, make oil flow into high-pressure chamber from the low-pressure chamber is one-way. When traditional plunger pump used in the oil well, its inside oil circuit and transmission structure have following problem still need to be optimized: the oil passes through the plunger inner core, and the one-way valves for preventing the oil from flowing back are arranged in the plunger inner core and the plunger hole, so that the structure is complex and the processing difficulty is high; the driving shaft is not directly connected with the rotating disc, so that certain energy loss exists; the rotating disc is connected with the plunger through connecting pieces such as a sliding shoe, a spherical plunger head and the like, and many parts are connected in a complex way; the reset force of the plunger is provided for the plunger by the rotating disc through the connecting piece, the connecting mode is complex, certain energy loss exists, the number of parts of the whole plunger pump is large, the connecting mode is complex, part of energy efficiency loss exists, and the production and maintenance cost is high.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art not enough, provide and be provided with the oil feed way on the inboard cylinder body terminal surface of all plungers, be provided with one-way component in the oil feed way, every plunger hole is located the opening in high-pressure chamber and is provided with a miniature high-pressure plunger pump check valve throttling arrangement of one-way component.
The utility model adopts the technical proposal that:
the utility model provides a miniature high pressure plunger pump check valve throttling arrangement, includes low-pressure chamber, cylinder body and high-pressure chamber, and the cylinder body is provided with a plurality of plunger holes, and every plunger hole site slides in the opening in low-pressure chamber and is provided with the plunger, and wherein, be provided with the oil feed way on the cylinder body terminal surface of all plunger inboards, this oil feed way tip that is located the cylinder body is respectively through one-way part and every plunger hole intercommunication, and every plunger hole site is provided with one-way part in the opening in high-pressure chamber.
The one-way component in the oil inlet channel is used for controlling oil in the low-pressure cavity to flow in a one-way mode into the plunger hole through the oil inlet channel.
The plunger hole is positioned in the opening of the high-pressure cavity, and a one-way component is arranged in the opening of the high-pressure cavity and used for controlling oil in the plunger hole to flow into the high-pressure cavity in a one-way mode.
The low-pressure cavity is internally provided with a rotating disc which is aligned with the end part of the plunger, the end face of the rotating disc facing the plunger is an inclined plane, and the rotating disc pushes all the plungers to reciprocate in the cylinder body through the inclined plane when rotating.
And the end part of the rotating shaft extending into the low-pressure cavity is fixedly connected with the rotating disc, detachably connected with the rotating disc or integrally manufactured to drive the rotating disc to rotate.
Wherein the inclined surface is a smooth surface.
The shape of the end part of the plunger contacting with the rotating disc is a cone, a pyramid, a round table or a frustum of a pyramid.
The shape of the end part of the plunger contacting the rotating disc is a cone, and the included angle between the normal line of the cone and the plane is the same as the included angle between the inclined plane and the plane.
Wherein, the plunger outer fringe between the end of plunger contact rolling disc and the cylinder body is equipped with reset spring in a sleeved manner.
The utility model has the advantages that:
the utility model discloses in, set up the oil feed passageway of constituteing by main oil gallery and vice oil duct in the cylinder body, be provided with the check valve in the main oil gallery, simplify the oil circuit in the cylinder body, make the manufacturing process of plunger pump become simple, reduced the cost of production and later maintenance. The rotating disc and the rotating shaft are integrally formed, so that the energy loss in the transmission process is greatly reduced, the working efficiency is improved, the parts in the plunger pump are reduced, the structure of the plunger pump is simpler, and the manufacturing cost and the later maintenance cost of the plunger pump are reduced.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
The present invention is further illustrated by the following examples, which are intended to be illustrative, not limiting and are not intended to limit the scope of the invention.
The utility model provides a miniature high pressure plunger pump check valve throttling arrangement, includes low-pressure chamber 10, cylinder body 12 and high-pressure chamber 1, the cylinder body is provided with a plurality of plunger holes 4, and every plunger hole site slides in the opening in low-pressure chamber and is provided with plunger 5, as shown in figure 1, the utility model discloses an innovation lies in: oil inlet channels are arranged on the end faces of the cylinder body on the inner sides of all the plungers, the end portions, located in the cylinder body, of the oil inlet channels are communicated with all the plunger holes through one-way components respectively, and one-way components are arranged in openings, located in the high-pressure cavity, of all the plunger holes.
The one-way component in the oil inlet channel is used for controlling the oil in the low-pressure cavity to flow in one direction into the plunger hole through the oil inlet channel.
The plunger hole is positioned in the opening of the high-pressure cavity, and a one-way component is arranged in the opening of the high-pressure cavity and used for controlling the oil in the plunger hole to flow into the high-pressure cavity in a one-way mode.
In this embodiment, a cylinder 12 is disposed in a cavity in the plunger pump cavity wall 8, the cylinder separates and isolates the cavity inside the plunger pump into a low pressure cavity 10 and a high pressure cavity 1, and the low pressure cavity and the high pressure cavity are respectively located at two ends of the cylinder. A plurality of plunger holes 4 are formed in the cylinder body, the plunger holes communicate the low-pressure cavity with the high-pressure cavity, and a plunger 5 is arranged in an opening of the low-pressure cavity in each plunger hole in a sliding mode. Still be provided with the oil feed way on the cylinder body, the one end opening of oil feed way is located the cylinder body on the terminal surface towards the low-pressure chamber, the other end opening of oil feed way is located each plunger hole, the oil feed way is with low-pressure chamber and plunger hole intercommunication, be used for inhaling the downthehole fluid of plunger with in the low-pressure chamber, still be provided with one-way component in the oil feed way and be used for controlling the fluid of low-pressure intracavity and pass through the oil feed way to the downthehole unidirectional flow of plunger, the unidirectional component is the check valve in this embodiment, fluid in this check valve control oil feed way can only be when the check valve is opened in the plunger hole of low-pressure chamber unidirectional flow.
The check valve 13 divides the oil inlet channel into a main oil channel 11 and a plurality of auxiliary oil channels 3 and 14, the main oil channel is communicated with the low pressure cavity, one end opening of the main oil channel is positioned on the end face of the cylinder body facing the low pressure cavity, the other end of the main oil channel is connected with the check valve 13, the main oil channel is connected with the plurality of auxiliary oil channels through the check valve, each plunger hole is connected with the check valve through one auxiliary oil channel corresponding to the plunger hole, and oil enters from the main oil channel and passes through the check valve and enters the plunger holes through the auxiliary oil channels respectively.
One- way valves 2 and 15 are arranged in an opening at one end, close to the high-pressure cavity 1, of the plunger hole and used for controlling the flow direction and the on-off of oil, so that the oil can only flow into the high-pressure cavity from the plunger hole in a single direction, and the oil in the high-pressure cavity cannot flow into the plunger hole due to pressure difference.
And a rotating disc 7 is arranged in the low-pressure cavity and aligned with the end part of the plunger, the end surface of the rotating disc facing the plunger is an inclined surface, and all the plungers are pushed to reciprocate in the cylinder body through the inclined surface when the rotating disc rotates. The inclined plane is a smooth surface.
And a rotating shaft 9 is arranged on the cavity wall opposite to the plunger piston at the low-pressure cavity side, and the end part of the rotating shaft extending into the low-pressure cavity is fixedly connected, detachably connected or integrally manufactured with the rotating disc and drives the rotating disc to rotate.
The shape of the end part of the plunger contacting with the rotating disc is a cone, a pyramid, a round table or a frustum of a pyramid. The shape of the end part of the plunger contacting the rotating disc is a cone, and the included angle between the normal line of the cone and the plane is the same as the included angle between the inclined plane and the plane.
And a return spring is sleeved on the outer edge of the plunger between the end part of the plunger contacting the rotating disc and the cylinder body.
The rotating disc 7 is arranged in the low-pressure cavity 10 and is a disc with uniform thickness, the rotating disc is obliquely arranged in the low-pressure cavity, and the rotating disc is aligned with the end parts of the plurality of plungers, so that the end parts of the plurality of plungers can abut against the position, close to the edge, of the upper surface of the rotating disc. Wear to be equipped with axis of rotation 9 on the chamber wall that low pressure chamber one side and plunger are relative, the axis of rotation penetrates to the low pressure intracavity from the cavity outside, and the axis of rotation penetrates the tip and the rolling disc center connection of low pressure intracavity, adopts axis of rotation and rolling disc integrated into one piece's mode in this embodiment, the energy loss of the transmission in-process that has significantly reduced. The axis of rotation can drive the rolling disc and rotate, and the one end of plunger is supported on the rolling disc surface, and in order to reduce the frictional resistance between plunger and the rolling disc surface, the surface of rolling disc and plunger contact is smooth surface, and the rolling disc all adopts metal material to make with the axis of rotation, considers reasons such as frictional resistance, wearability and fastness, prefers in this embodiment stainless steel to be the integrative material of making of rolling disc and axis of rotation.
Since the rotating disk is arranged obliquely, in order to ensure that the contact part of the plunger and the rotating disk is uniformly stressed as much as possible to reduce the friction resistance and the friction loss, the end part of the plunger contacting the rotating disk is designed into a conical shape, the angle 1/2 of the cone of the conical shape is the same as the inclination angle of the rotating disk, namely, the conical end part 6 of the plunger can be completely attached to the surface of the rotating disk in a line contact mode.
In this embodiment, when the rotating shaft drives the rotating disc to rotate, because the rotating disc has an inclination angle, the rotating disc can push all the plungers into the cylinder body in turn, and the outer edge of the plunger needs to be sleeved with the return spring 16 to provide the plunger with a return force for abutting against the rotating disc, so that the diameter of the conical end portion 6 of the plunger contacting the rotating disc needs to be slightly larger than that of the plunger, one end of the return spring can abut against the bottom surface of the conical end portion of the plunger, and the other end of the return spring abuts against the end surface of the cylinder body facing the low pressure cavity.
The utility model discloses a working process is: outside driving motor of plunger pump extends to the end connection in the cavity outside with the axis of rotation, and driving motor drive axis of rotation rotates and drives the rolling disc and rotate, because the rolling disc is the setting of slope in the low pressure intracavity, the rolling disc is pushed the plunger in turn to the cylinder body in, and when the rolling disc was close to the tip of cylinder body and is changeed from the plunger, the plunger supported the rolling disc and resets to the direction of keeping away from the cylinder body under reset spring's effect.
As shown in fig. 1, when the plunger is reset to a state away from the cylinder, oil is sucked into the plunger hole from the low-pressure chamber, the oil enters from the main oil gallery, the check valve 13 is opened at this time, the oil enters the plunger hole through the auxiliary oil gallery 3, and the check valve 2 is closed at this time. As shown in the left plunger of the figure, when the plunger is pushed into the cylinder by the rotating disc, the check valve 15 is opened, the oil in the plunger hole is pushed into the high pressure chamber, and the check valve 13 is closed under the action of pressure. 3-5 plungers can be uniformly arranged in the cylinder body in a surrounding mode according to actual needs, and the more the number of the plungers is, the larger the flow rate of the oil liquid is.
The utility model discloses in, set up the oil feed passageway of constituteing by main oil gallery and vice oil duct in the cylinder body, be provided with the check valve in the main oil gallery, simplify the oil circuit in the cylinder body, make the manufacturing process of plunger pump become simple, reduced the cost of production and later maintenance. The rotating disc and the rotating shaft are integrally formed, so that the energy loss in the transmission process is greatly reduced, the working efficiency is improved, the parts in the plunger pump are reduced, the structure of the plunger pump is simpler, and the manufacturing cost and the later maintenance cost of the plunger pump are reduced.
Claims (1)
1. The utility model provides a miniature high pressure plunger pump check valve throttling arrangement, includes low-pressure chamber, cylinder body and high-pressure chamber, and the cylinder body is provided with a plurality of plunger holes, and every plunger hole site slides in the opening in low-pressure chamber and is provided with plunger, its characterized in that: the end surfaces of the cylinder bodies on the inner sides of all the plungers are provided with oil inlet channels, the end parts of the oil inlet channels positioned in the cylinder bodies are respectively communicated with each plunger hole through a one-way component, and each plunger hole is positioned in an opening of the high-pressure cavity and is internally provided with the one-way component;
the one-way component in the oil inlet channel divides the oil inlet channel into a main oil channel and a plurality of auxiliary oil channels, one end opening of the main oil channel is positioned on the end surface of the cylinder body facing the low-pressure cavity, the other end of the main oil channel is connected with the one-way component, the main oil channel is connected with the plurality of auxiliary oil channels through the one-way component, and each plunger hole is connected with the one-way valve through one auxiliary oil channel corresponding to the plunger hole;
the one-way component arranged in the opening of the high-pressure cavity of the plunger hole is used for controlling the oil in the plunger hole to flow into the high-pressure cavity in a one-way mode;
the one-way component in the oil inlet channel is used for controlling the oil in the low-pressure cavity to flow to the plunger hole in a one-way mode through the oil inlet channel;
a rotating disc is arranged in the low-pressure cavity in alignment with the end part of the plunger, the end surface of the rotating disc facing the plunger is an inclined surface, and all the plungers are pushed to reciprocate in the cylinder body through the inclined surface when the rotating disc rotates;
a rotating shaft is arranged on the cavity wall opposite to the plunger piston at the side of the low-pressure cavity, and the end part of the rotating shaft extending into the low-pressure cavity is fixedly connected, detachably connected or integrally manufactured with the rotating disc and drives the rotating disc to rotate;
the inclined surface is a smooth surface;
the shape of the end part of the plunger contacting the rotating disc is a cone, a pyramid, a round table or a frustum of a pyramid;
the shape of the end part of the plunger, which is contacted with the rotating disc, is a cone, and the included angle between the normal line of the cone and the plane is the same as the included angle between the inclined plane and the plane;
and a return spring is sleeved on the outer edge of the plunger between the end part of the plunger contacting the rotating disc and the cylinder body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120863034.9U CN217354718U (en) | 2021-04-25 | 2021-04-25 | Miniature high-pressure plunger pump check valve throttling arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120863034.9U CN217354718U (en) | 2021-04-25 | 2021-04-25 | Miniature high-pressure plunger pump check valve throttling arrangement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217354718U true CN217354718U (en) | 2022-09-02 |
Family
ID=83009747
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120863034.9U Expired - Fee Related CN217354718U (en) | 2021-04-25 | 2021-04-25 | Miniature high-pressure plunger pump check valve throttling arrangement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217354718U (en) |
-
2021
- 2021-04-25 CN CN202120863034.9U patent/CN217354718U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220902 |