CN207145218U - Servicing unit applied to pressure break pump hydraulic end - Google Patents
Servicing unit applied to pressure break pump hydraulic end Download PDFInfo
- Publication number
- CN207145218U CN207145218U CN201721057383.1U CN201721057383U CN207145218U CN 207145218 U CN207145218 U CN 207145218U CN 201721057383 U CN201721057383 U CN 201721057383U CN 207145218 U CN207145218 U CN 207145218U
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- Prior art keywords
- cylinder body
- feedboard
- connecting rod
- piston
- pressure break
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Abstract
The utility model discloses the servicing unit applied to pressure break pump hydraulic end, including cylinder body and piston rod, one end activity of piston rod through an end face of cylinder body and is connected with piston, and the other end of piston rod and the power end of fracturing pump connect；Discharge gate and charging aperture are provided with cylinder body, and cylinder body has been respectively communicated with drainage conduit and feed pipe by discharge gate and charging aperture；Also include the marker board to match with discharge gate, the feedboard to match with charging aperture, at the top of marker board above cylinder body, the bottom surface of marker board is located in cylinder body and hinge connection has second connecting rod, feedboard is hingedly connected on the inner surface of cylinder body close to one end of piston, and the upper surface upper hinge of feedboard is connected with first connecting rod；First connecting rod, second connecting rod hinge connection have fix bar, and fix bar is fixed on piston.Spring force caused by spring fatigue is avoided by way of connecting rod declines, fracturing fluid suction output quantity reduces, and causes the process costs of fracturing technology to increase, efficiency reduces.
Description
Technical field
It the utility model is related to field of petroleum exploitation, and in particular to the servicing unit applied to pressure break pump hydraulic end.
Background technology
In the evolution of human civilization, oil plays very important role.But oil belongs to non-renewable resources,
The demand of oil is increased year by year at present simultaneously, result in the oil reserve amount in oil field constantly reduces, and is in for most of
The oil field of middle and later periods, the oil amount obtained by conventional recovery method is seldom, therefore introduces fracturing technology in these oil fields to improve
Oil production rate.
The fracturing unit used in fracturing technology, such as fracturing pump are one of capital equipments for improving oil production rate.Pressure break
Pump can transport fracturing fluid to shaft bottom, and causing the rock break in shaft bottom, increase oil is on stratum so as to improve oil permeability
The quick flowing of lower section is to improve oil productivity.With the raising that people are required oil productivity, fracturing pump is also towards high-power, high
Pressure, huge discharge, output medium be diversified, multi-functional development.
The structure of fracturing pump is broadly divided into power end and fluid end two parts.Wherein, power end generally use crank connecting link
Rotational energy is changed into straight reciprocating motion energy transmission to piston by mechanism, the conventional parts of power end include input shaft,
Bent axle, connecting rod, crosshead, Jie's bar；Fluid end is also referred to as pump head, mainly including cylinder body, cylinder sleeve, piston rod, piston, inlet valve,
The parts such as dump valve.Compared to power end, fluid end is not only expensive and is easily damaged, because fluid end subjects high pressure
With the corrosion of fracturing fluid.
Inlet valve and dump valve are the check valve for being provided with spring used by traditional fracturing pump.When fracturing pump sucks
During fracturing fluid, fracturing fluid is washed open inlet valve and entered in cylinder body by the pressure differential inside and outside cylinder body；Subsequent fracturing fluid is with cylinder body
Internal volume diminish pressure increase and push dump valve open and enter discharge line.But because inlet valve and dump valve use spring
Mechanism, spring is easily tired during continually sucking for a long time and discharging fracturing fluid, and elasticity weakens, and not only increases pump
The repair rate of head, the service life for shortening fracturing pump, also reduce the efficiency of fracturing technology.
Utility model content
The purpose of this utility model is to provide the servicing unit applied to pressure break pump hydraulic end, to solve in the prior art
Fracturing pump spring during continually sucking for a long time and discharging fracturing fluid is easily tired, and elasticity weakens, and improves pump head
Repair rate, shorten the service life of fracturing pump, reduce the problem of fracturing technology efficiency.
The utility model is achieved through the following technical solutions：Applied to the servicing unit of pressure break pump hydraulic end, including cylinder body
And piston rod, one end activity of piston rod through an end face of cylinder body and are connected with the piston positioned at cylinder interior, piston rod
The other end and fracturing pump power end connect；Discharge gate and charging aperture are provided with cylinder body, and cylinder body by discharge gate and enters
Material mouth has been respectively communicated with drainage conduit and feed pipe；The marker board that also includes matching with discharge gate, enter with what charging aperture matched
Flitch, marker board top is above cylinder body, and the bottom surface of marker board is located in cylinder body and hinge connection has second connecting rod, feedboard
It is hingedly connected at close to one end of piston on the inner surface of cylinder body, the upper surface upper hinge of feedboard is connected with first connecting rod；The
One connecting rod, second connecting rod hinge connection have fix bar, and fix bar is fixed on piston.
In the prior art, inlet valve and dump valve are the check valve for being provided with spring used by fracturing pump.Work as pressure break
When pumping enters fracturing fluid, fracturing fluid is washed open inlet valve and entered in cylinder body by the pressure differential inside and outside cylinder body；Subsequent fracturing fluid with
Cylinder body internal volume diminish pressure increase and push dump valve open and enter discharge line.But because inlet valve and dump valve are adopted
With spring mechanism, spring is easily tired during continually sucking for a long time and discharging fracturing fluid, and elasticity weakens, and causes to press
The suction and discharge rate for splitting liquid are reduced, therefore irregularly fracturing pump pump head must not be overhauled, and not only increase process costs, also
Reduce the efficiency of fracturing technology.Therefore, in order to solve the above problems, the utility model is provided applied to the auxiliary of pressure break pump hydraulic end
Device is helped, traditional be changed into by way of spring mechanism realizes suction, discharge fracturing fluid is passed through piston by the auxiliary body
Reciprocating motion drive link mechanism, so as to realize the switch of charging aperture and discharge gate, the problem of spring fatigue will not be produced.
Specifically, be with traditional pressure break pump hydraulic end identical, the utility model also include cylinder body, piston, piston rod,
Charging aperture, feed pipe, discharge gate and drainage conduit, the connected mode of above-mentioned part and the housing structure of existing pressure break pump hydraulic end
It is similar.Unlike, piston towards feed pipe, drainage conduit end face on be fixedly connected with fix bar, the fix bar and work
The fixed form of plug such as includes and is not limited to be screwed, welds at the mode.Fix bar upper hinge is connected with first connecting rod and second
Connecting rod, while hinge connection has feedboard and marker board respectively for first connecting rod and second connecting rod, marker board is close to one end of piston
It is hingedly connected on the inwall of cylinder body.Above-mentioned hinge connection is also known as be hinged, refers to the parts that can allow for two interconnections
Between make the connected mode of relative rotation, such as connected by loose-leaf.The size of above-mentioned feedboard and marker board is respectively at entering
Material mouth, the size of discharge gate match, and specifically, feedboard can cover charging aperture, and marker board can cover discharge gate, but together
When marker board be located at the diameter of the part in discharge gate and be less than discharge gate so that fracturing fluid can discharge from discharge gate, and
That reserves that enough working clearances make between marker board and second connecting rod be hinged is unlikely to block in discharge gate.Preferably, arrange
The part that material mouth contacts with marker board can be arranged at the groove that discharge board diameter matches so that moved backward in piston, the
When two connecting rods dragging marker board is downward, marker board can fall in the groove set on marker board.
During work, acted on by power end toggle, piston rod band piston moves reciprocatingly in cylinder body.
When piston moves to power end, fix bar moves with piston to power end, so that between first connecting rod and second connecting rod
Angle reduces, and second connecting rod pulls downwards marker board, seals discharge gate, and first connecting rod pulls feedboard, opens charging aperture, cylinder body
Inside and outside pressure causes fracturing fluid to be pressed into cylinder body；When piston moves to charging aperture, discharge gate direction, fix bar is similarly
To be moved to the direction so that the increase of angle between first connecting rod and second connecting rod, top begins to rehearse flitch second connecting rod upwards, and first
Connecting rod promotes feedboard, it is closed charging aperture, so as to which fracturing fluid can extrude cylinder body by the pressure in cylinder body, into discharge
Pipe.Inlet valve, dump valve compared to traditional pressure break pump hydraulic end are avoided by the way of spring mechanism by way of connecting rod
Spring force caused by spring fatigue declines, fracturing fluid suction output quantity reduces, cause the process costs of fracturing technology to increase,
Efficiency reduces, and has universal application value.Meanwhile linkage is with the reciprocating motion folding feedboard or discharge of piston
Plate, it is not that complete depended on pressure official post obtains fracturing fluid and washes inlet valve or dump valve open, when needing to suck fracturing fluid, piston
Backward, i.e., moved to power end, open feedboard, the impact of the fracturing fluid suffered by feedboard greatly reduces；And need to exclude
During fracturing fluid, piston moves forward, and the flitch that begins to rehearse is pushed up, without washing marker board, the pressure break that marker board is subject to open by fracturing fluid completely
The impact of liquid is also greatly reduced, and to sum up, by linkage, the impact from fracturing fluid that marker board and feedboard are subject to can
It is greatly reduced, extends the service life of equipment, reduces the cost of fracturing technology.
Further, the axis of fix bar and piston rod is overlapped.Above-mentioned design causes the axis of fix bar to wear
Cross the center of circle of piston end surface.By above-mentioned design, one side fix bar can preferably drive first connecting rod and second connecting rod, separately
One side first connecting rod, second connecting rod also can be relatively uniform to the active force of feedboard, marker board.
Further, marker board includes upper and lower part, and the section of marker board is T-shaped, the portion that marker board contacts with cylinder body
Set up separately and be equipped with cushion pad.The section of marker board is that T-shaped refers to that marker board is top, bottom two parts composition, and two parts are circle
Cylinder, the effect on marker board top are to realize the connection or closing to discharge gate, and the effect of marker board bottom is be hinged second
Connecting rod, while can also guide movement of the marker board in discharge gate.Marker board top is located at the top of cylinder body discharge gate, discharge
Plate bottom, which is located in cylinder body, to be easy to be hinged with second connecting rod.The part that the lower surface on marker board top contacts with cylinder body is provided with slow
Punching pad, cushion pad can not only play a part of buffering, and excessive impulse force causes parts when avoiding marker board from closing discharge gate
Damage, while can also further improve sealing function, it is preferable that cushion pad be arranged on set on discharge gate with discharge board foot
In the very little groove to match.
Further, marker board upper diameter is 1.5-2.5 times of lower diameter.Found by putting into practice, marker board top
The unlatching of marker board and sealing effect are best at 1.5-2.5 times of a diameter of lower diameter.
Further, it is provided with cushion pad on the movable end of the feedboard.Feedboard one end is hinged on the inwall of cylinder body
On, the other end is movable end, and cushion pad is provided with movable end can avoid feedboard from being sent out when closing charging aperture with inboard wall of cylinder block
Raw sharp impacts, feedboard or linkage is caused to damage, meanwhile, cushion pad can also play certain sealing function.It is preferred that
Ground, when feedboard is in the position of closing charging aperture, holding tank is opened up on cylinder body, the height of holding tank is equal on movable end
The thickness of cushion pad.
Further, 1.3-1.5 times of a diameter of intake port of feedboard.If the diameter of feedboard is excessive,
Either open or during tube wall feedboard, feedboard can all be increased by the resistance of fracturing fluid, be unfavorable for connecting rod to feedboard
Control, easily cause linkage damage；If the diameter of feedboard is too small, sealing effect is bad.To sum up, sent out by putting into practice
Existing, effect is best at 1.3-1.5 times of a diameter of intake port of feedboard.
Further, the movable end of feedboard is fillet.The movable end of feedboard is arranged into fillet can equally reduce
Feedboard suffered resistance from fracturing fluid when being turned on and off.
Further, cushion pad is made up of rubber.
Further, the diameter of feed pipe gradually increases along one end away from cylinder body to one end close to cylinder body.Due to straight
Footpath gradually increases, and speed when fracturing fluid enters cylinder body decreases, and impulse force also accordingly declines, and avoids too fast speed to charging
Plate impacts.
Further, diameter of the feed pipe away from cylinder body one end is proximate to 1.2 times of the diameter of cylinder body one end.Pass through practice
It was found that when diameter of the feed pipe away from cylinder body one end is proximate to 1.2 times of the diameter of cylinder body one end, fracturing fluid is to feedboard bottom
The impact energy in face effectively reduces.
The utility model compared with prior art, has the following advantages and advantages：
1st, the inlet valve compared to traditional pressure break pump hydraulic end, dump valve are by the way of spring mechanism, the utility model
Spring force caused by spring fatigue is avoided by way of connecting rod declines, fracturing fluid suction output quantity reduces, and causes pressure break
The process costs increase of technique, efficiency reduce, and have universal application value；
2nd, linkage of the present utility model is with the reciprocating motion folding feedboard or marker board of piston, marker board and enters
The impact from fracturing fluid that flitch is subject to can be greatly reduced, and extend the service life of equipment, reduce fracturing technology
Cost；
3rd, 1.3-1.5 times of a diameter of intake port of feedboard of the present utility model, if the diameter mistake of feedboard
Greatly, then either open or during tube wall feedboard, feedboard can all be increased by the resistance of fracturing fluid, be unfavorable for connecting rod to entering
The control of flitch, linkage damage is easily caused, if the diameter of feedboard is too small, sealing effect is bad.
Brief description of the drawings
Accompanying drawing described herein is used for providing further understanding the utility model embodiment, forms the one of the application
Part, the restriction to the utility model embodiment is not formed.In the accompanying drawings：
Fig. 1 is structural representation of the present utility model.
Mark and corresponding parts title in accompanying drawing：
1- cylinder bodies, 2- pistons, 3- piston rods, 4- fix bars, 5- first connecting rods, 6- second connecting rods, 7- feedboards, 8- discharges
Plate, 9- drainage conduits, 10- feed pipes.
Embodiment
For the purpose of this utility model, technical scheme and advantage is more clearly understood, with reference to embodiment and accompanying drawing,
The utility model is described in further detail, and exemplary embodiment of the present utility model and its explanation are only used for explaining this
Utility model, it is not intended as to restriction of the present utility model.
Embodiment 1：
Servicing unit applied to pressure break pump hydraulic end as shown in Figure 1, including cylinder body 1 and piston rod 3, piston rod 3
The piston 2 that one end activity runs through an end face of cylinder body 1 and is connected with inside cylinder body 1, the other end and pressure break of piston rod 3
The power end connection of pump；Discharge gate and charging aperture are provided with cylinder body 1, and cylinder body 1 is distinguished by the discharge gate and charging aperture
It is communicated with drainage conduit 9 and feed pipe 10；Also include the marker board 8 to match with discharge gate, the feedboard to match with charging aperture
7, for the top of marker board 8 positioned at the top of cylinder body 1, the bottom surface of marker board 8 is located in cylinder body 1 and hinge connection has second connecting rod 6, feeds
Plate 7 is hingedly connected on the inner surface of cylinder body 1 close to one end of piston 2, and the upper surface upper hinge of feedboard 7 is connected with the first company
Bar 5；First connecting rod 5, the hinge connection of second connecting rod 6 have fix bar 4, and fix bar 4 is fixed on the piston 2；Fix bar 4 and piston rod
3 axis is overlapped；Marker board 8 includes upper and lower part, and the section of marker board 8 is T-shaped, and marker board 8 contacts with cylinder body 1
Part be provided with cushion pad；The upper diameter of marker board 8 is 1.5-2.5 times of lower diameter；Set on the movable end of feedboard 7
There is cushion pad；1.3-1.5 times of a diameter of intake port of feedboard 7；The movable end of feedboard 7 is fillet.Cushion pad by
Rubber is made；The diameter of feed pipe 10 gradually increases along one end away from cylinder body 1 to one end close to cylinder body 1；Feed pipe 10 is remote
Diameter from the one end of cylinder body 1 is proximate to 1.2 times of diameter of the one end of cylinder body 1.
In use, when needing to suck fracturing fluid, acted on by power end toggle, piston rod 3, which drives, lives
Plug 2 moves reciprocatingly in cylinder body 1.When piston 2 moves to power end of fracturing pump, fix bar 4 is moved with piston 2 to power end
Dynamic, so that the angle between first connecting rod 5 and second connecting rod 6 reduces, second connecting rod 6 pulls downwards marker board 8, seals discharge
Mouthful, first connecting rod 5 pulls feedboard 7, opens charging aperture, and the pressure differential inside and outside cylinder body 1 causes fracturing fluid to be pressed into cylinder body 1；
When piston 2 moves to charging aperture, discharge gate direction, fix bar 4 similarly moves to the direction so that first connecting rod 5 and the
Angle increase between two connecting rods 6, second connecting rod 6 push up the flitch 8 that begins to rehearse upwards, and first connecting rod 5 promotes feedboard 7, makes its closing
Charging aperture, so as to which fracturing fluid can extrude cylinder body by the pressure in cylinder body 1, into drainage conduit 9.The present apparatus is by way of connecting rod
Spring force caused by avoiding spring fatigue declines, fracturing fluid suction output quantity reduces, and causes the process costs of fracturing technology
Increase, efficiency reduce, and have universal application value.
Above-described embodiment, the purpose of this utility model, technical scheme and beneficial effect are entered
One step describes in detail, should be understood that and the foregoing is only specific embodiment of the present utility model, is not used to limit
Determine the scope of protection of the utility model, it is all within the spirit and principles of the utility model, any modification for being made, equally replace
Change, improve, should be included within the scope of protection of the utility model.
Claims (10)
1. applied to the servicing unit of pressure break pump hydraulic end, including cylinder body (1) and piston rod (3), one end of the piston rod (3)
Activity is through an end face of cylinder body (1) and is connected with positioned at the internal piston (2) of cylinder body (1), the other end of piston rod (3) with
The power end connection of fracturing pump；Discharge gate and charging aperture are provided with cylinder body (1), and cylinder body (1) by the discharge gate and enters
Material mouth has been respectively communicated with drainage conduit (9) and feed pipe (10)；Characterized in that, also include the marker board to match with discharge gate
(8), the feedboard (7) to match with charging aperture, marker board (8) top is above cylinder body (1), the bottom of marker board (8)
Face is located in cylinder body (1) and hinge connection has second connecting rod (6), one end hinge connection of the feedboard (7) close to piston (2)
On the inner surface of cylinder body (1), the upper surface upper hinge of feedboard (7) is connected with first connecting rod (5)；The first connecting rod (5),
Second connecting rod (6) hinge connection has fix bar (4), and the fix bar (4) is fixed on piston (2).
2. the servicing unit according to claim 1 applied to pressure break pump hydraulic end, it is characterised in that the fix bar
(4) it is overlapped with the axis of piston rod (3).
3. the servicing unit according to claim 1 applied to pressure break pump hydraulic end, it is characterised in that the marker board
(8) upper and lower part is included, the section of marker board (8) is T-shaped, and the part that marker board (8) contacts with cylinder body (1) is provided with buffering
Pad.
4. the servicing unit according to claim 3 applied to pressure break pump hydraulic end, it is characterised in that on marker board (8)
1.5-2.5 times of a diameter of lower diameter in portion.
5. the servicing unit according to claim 1 applied to pressure break pump hydraulic end, it is characterised in that the feedboard
(7) cushion pad is provided with movable end.
6. the servicing unit according to claim 1 applied to pressure break pump hydraulic end, it is characterised in that the feedboard
(7) 1.3-1.5 times of a diameter of intake port.
7. the servicing unit according to claim 1 applied to pressure break pump hydraulic end, it is characterised in that the feedboard
(7) movable end is fillet.
8. the servicing unit applied to pressure break pump hydraulic end according to any one of claim 3~5, it is characterised in that
The cushion pad is made up of rubber.
9. the servicing unit according to claim 1 applied to pressure break pump hydraulic end, it is characterised in that the feed pipe
(10) diameter gradually increases along one end away from cylinder body (1) to one end close to cylinder body (1).
10. the servicing unit according to claim 9 applied to pressure break pump hydraulic end, it is characterised in that the feed pipe
(10) diameter away from cylinder body (1) one end is proximate to 1.2 times of diameter of cylinder body (1) one end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721057383.1U CN207145218U (en) | 2017-08-23 | 2017-08-23 | Servicing unit applied to pressure break pump hydraulic end |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721057383.1U CN207145218U (en) | 2017-08-23 | 2017-08-23 | Servicing unit applied to pressure break pump hydraulic end |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207145218U true CN207145218U (en) | 2018-03-27 |
Family
ID=61669563
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721057383.1U Expired - Fee Related CN207145218U (en) | 2017-08-23 | 2017-08-23 | Servicing unit applied to pressure break pump hydraulic end |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207145218U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107387398A (en) * | 2017-08-23 | 2017-11-24 | 四川达灿石油设备有限公司 | A kind of fracturing pump pump head auxiliary body |
| CN112283353A (en) * | 2020-12-28 | 2021-01-29 | 胜利油田固邦石油装备有限责任公司 | Drilling mud pump packing seal structure |
-
2017
- 2017-08-23 CN CN201721057383.1U patent/CN207145218U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107387398A (en) * | 2017-08-23 | 2017-11-24 | 四川达灿石油设备有限公司 | A kind of fracturing pump pump head auxiliary body |
| CN112283353A (en) * | 2020-12-28 | 2021-01-29 | 胜利油田固邦石油装备有限责任公司 | Drilling mud pump packing seal structure |
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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 |
Granted publication date: 20180327 Termination date: 20190823 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |