CN205805898U - The fluid end of high pressure reciprocating pump - Google Patents
The fluid end of high pressure reciprocating pump Download PDFInfo
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- CN205805898U CN205805898U CN201620712182.XU CN201620712182U CN205805898U CN 205805898 U CN205805898 U CN 205805898U CN 201620712182 U CN201620712182 U CN 201620712182U CN 205805898 U CN205805898 U CN 205805898U
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Abstract
A kind of fluid end of high pressure reciprocating pump.It includes plunger, connection dish, U-shaped secondary water seal, baffle ring, spacer ring, U-shaped main water seal, gasket ring, tapping valve, the pump housing, liquid feed valve, pressure valve lid；The fluid end structure of the high pressure reciprocating pump that this utility model provides is reasonable in design, can make the medium automatic back flow low pressure liquid entrance point to plunger displacement pump of spilling, thus without polluting environment.
Description
Technical field
This utility model belongs to hydraulic machinery technical field, particularly relates to the fluid end of a kind of high pressure reciprocating pump.
Background technology
High pressure reciprocating pump is also known as plunger displacement pump, and for an important device of hydraulic system, it relies on plunger in cylinder body
Move back and forth, make the volume of pressurization working lumen change and realize sucking medium, compressed media, there is rated pressure height, knot
The advantages such as structure is compact, efficiency is high and Flow-rate adjustment is convenient, being widely used in high pressure, big flow and flow needs the field of regulation
Close, such as high-pressure water jet auxiliary rock coal breakage, underground hydraulic pressure system fuel feeding, high-pressure wash, rust cleaning, coal-bed flooding, engineering pick
Enter, fire-fighting water smoke, desalinization and pipeline pressure test etc..The most conventional plunger displacement pump is mainly by power end and fluid end two parts group
Become, power end for the energy of prime mover is passed to fluid end, mainly include crankcase, high speed shaft, bent axle, gear ring, connecting rod and
Crosshead；Fluid end is then used for converting mechanical energy into pressure medium energy, mainly includes cylinder body, plunger and combination valve group.But
It is that the most conventional plunger displacement pump exists following point: piston reciprocation athletic meeting makes pressure medium boost, with the medium meeting of pressure
By plunger surface to low-pressure end overflow, pressure reduction is the biggest, and overflow is the most serious, for water insoluble, contaminative is strong, inflammable, easy
Quick-fried and poisonous medium requirements plunger displacement pump has reliable sealing.Overflow not only can pollute working environment, waste resource, seriously
Time also can cause personal injury.And plunger displacement pump conventional at present does not possess the function making medium automatic back flow.
Summary of the invention
In order to solve the problems referred to above, the purpose of this utility model is to provide the fluid end of a kind of high pressure reciprocating pump.
In order to achieve the above object, the fluid end of the high pressure reciprocating pump that this utility model provides includes plunger, connection
Dish, U-shaped secondary water seal, baffle ring, spacer ring, U-shaped main water seal, gasket ring, tapping valve, cylinder body, liquid feed valve, pressure valve lid；Wherein cylinder body is for long
Side's body structure, middle part is formed in left-right direction and is sequentially connected and auxiliary seal cavity, main seal cavity and work that diameter is sequentially reduced
Make chamber, and the external port of auxiliary seal cavity is positioned on the left side of the pump housing；The left end top and the bottom of the pump housing distinguish shape along the longitudinal direction
Becoming to have apocenosis passage and feed pathway, the external port of apocenosis passage is positioned at the front end face top of the pump housing as leakage fluid dram, and feed liquor leads to
The external port in road is positioned at the front end face bottom of the pump housing as inlet；The right-hand member top and the bottom of the pump housing are respectively formed with and working chamber phase
The discharge opeing valve pocket of connection and feed liquor valve pocket, and discharge opeing valve pocket is connected with apocenosis passage and feed pathway respectively with feed liquor valve pocket
Logical, it is also formed with intercommunicating pore between auxiliary seal cavity and feed pathway simultaneously；Liquid feed valve and tapping valve are separately positioned on feed liquor valve pocket
With in discharge opeing valve pocket, and the external port of feed liquor valve pocket and discharge opeing valve pocket by one pressure valve bonnet seal；Plunger is horizontally disposed with, after
Portion is movably disposed inside auxiliary seal cavity, main seal cavity and working chamber, after the crosshead on front end and power end
End is connected；Connection dish is ring-type, is located at the external port of auxiliary seal cavity, and is enclosed within outside plunger；U-shaped secondary water seal is ring-type,
It is located on the right side of connection dish on the inner peripheral surface at position, and contacts with the outer circumference surface of plunger；Baffle ring is enclosed within outside plunger, by one
Macro ring and little ring that body is formed and is arranged side by side are constituted, and wherein macro ring is positioned at the right-hand member of auxiliary seal cavity, and little ring is positioned at main seal cavity
Left end, and on macro ring, be radially formed flowing hole；Spacer ring, U-shaped main water seal and gasket ring are successively set on master from left to right
In annular seal space, wherein spacer ring and gasket ring are enclosed within outside plunger, and U-shaped main water seal then contacts with the outer circumference surface of plunger.
Three plungers and matched connection dish, U-shaped secondary water seal, baffle ring, spacer ring, U it is provided with side by side on the described pump housing
The main water seal of type, gasket ring, tapping valve, liquid feed valve, pressure valve lid.
Described connection dish is provided with O RunddichtringO with the pump housing, pressure valve lid with the junction of the pump housing.
The fluid end structure of the high pressure reciprocating pump that this utility model provides is reasonable in design, and the medium that can make spilling is automatic
It is back to the low pressure liquid entrance point of plunger displacement pump, thus without polluting environment.
Accompanying drawing explanation
The fluid end vertical structure sectional view of the high pressure reciprocating pump that Fig. 1 provides for this utility model.
The fluid end external structure axonometric chart of the high pressure reciprocating pump that Fig. 2 provides for this utility model.
The fluid end middle pump body vertical structure sectional view of the high pressure reciprocating pump that Fig. 3 provides for this utility model.
The fluid end middle pump body external structure axonometric chart of the high pressure reciprocating pump that Fig. 4 provides for this utility model.
Fig. 5 (a), figure (b) are respectively baffle ring structure in the fluid end of the high pressure reciprocating pump that this utility model provides and stand
Body figure and vertical structure sectional view.
Gasket ring external structure axonometric chart in the fluid end of the high pressure reciprocating pump that Fig. 6 provides for this utility model.
Spacer ring vertical structure sectional view in the fluid end of the high pressure reciprocating pump that Fig. 7 provides for this utility model.
Fig. 8 (a), figure (b) are respectively main water seal and pair in the fluid end of the high pressure reciprocating pump that this utility model provides
Sealing structure for water axonometric chart and vertical structure sectional view.
Fig. 9 (a), figure (b) are respectively connection dish structure in the fluid end of the high pressure reciprocating pump that this utility model provides
Axonometric chart and vertical structure sectional view.
Detailed description of the invention
The fluid end of the high pressure reciprocating pump provided this utility model with specific embodiment below in conjunction with the accompanying drawings is carried out
Describe in detail.
As shown in Fig. 1 Fig. 9, the fluid end of the high pressure reciprocating pump that this utility model provides includes plunger 1, connection dish
2, U-shaped secondary water seal 4, baffle ring 5, spacer ring 6, U-shaped main water seal 7, gasket ring 8, tapping valve 9, the pump housing 10, liquid feed valve 11, pressure valve lid 13；Its
Middle pump body 10 is cuboid structure, and middle part is formed in left-right direction and is sequentially connected and auxiliary seal cavity that diameter is sequentially reduced
14, main seal cavity 19 and working chamber 22, and the external port of auxiliary seal cavity 14 is positioned on the left side of the pump housing 10；A left side for the pump housing 10
End top and the bottom are respectively formed with apocenosis passage 23 and feed pathway 18 along the longitudinal direction, and the external port of apocenosis passage 23 is as discharge opeing
Mouth 20 is positioned at the front end face top of cylinder body 10, and the external port of feed pathway 18 is positioned under the front end face of the pump housing 10 as inlet 21
Portion；The right-hand member top and the bottom of the pump housing 10 are respectively formed with the discharge opeing valve pocket 25 and feed liquor valve pocket 24 being connected with working chamber 22, and
Discharge opeing valve pocket 25 is connected with apocenosis passage 23 and feed pathway 18 respectively with feed liquor valve pocket 24, simultaneously auxiliary seal cavity 14 and feed liquor
Intercommunicating pore 17 it is also formed with between passage 18；Liquid feed valve 11 and tapping valve 9 are separately positioned on feed liquor valve pocket 24 and discharge opeing valve pocket 25
In, and the external port of feed liquor valve pocket 24 and discharge opeing valve pocket 25 seals by a pressure valve lid 13；Plunger 1 is horizontally disposed with, rear portion
It is movably disposed auxiliary seal cavity 14, main seal cavity 19 and working chamber 22 internal, front end and the cross on power end
Head rear end is connected；Connection dish 2 is ring-type, is located at the external port of auxiliary seal cavity 14, and it is outside to be enclosed within plunger 1；U-shaped secondary water seal
4 is ring-type, is located on the right side of connection dish 2 on the inner peripheral surface at position, and contacts with the outer circumference surface of plunger 1；Baffle ring 5 is enclosed within post
Plug 1 is outside, is made up of the macro ring being integrally formed and being arranged side by side and little ring, and wherein macro ring is positioned at the right-hand member of auxiliary seal cavity 14, little
Ring is positioned at the left end of main seal cavity 19, and has been radially formed flowing hole 16 on macro ring；Spacer ring 6, U-shaped main water seal 7 and gasket ring 8
Being successively set on from left to right in main seal cavity 19, wherein to be enclosed within plunger 1 outside for spacer ring 6 and gasket ring 8, U-shaped main water seal 7 then with
The outer circumference surface of plunger 1 contacts.
Be provided with side by side on the described pump housing 10 three plungers 1 and matched connection dish 2, U-shaped secondary water seal 4, baffle ring 5,
Spacer ring 6, U-shaped main water seal 7, gasket ring 8, tapping valve 9, liquid feed valve 11, pressure valve lid 13.
Described connection dish 3 is provided with O RunddichtringO 3 with the pump housing 10, pressure valve lid 13 with the junction of the pump housing 10.
The operation principle of the fluid end of the high pressure reciprocating pump now provided by this utility model is described below:
When needs compressed media, under the effect of motor, generation is revolved by the bent axle on high pressure reciprocating pump power end
Turning, thus drivening rod, crosshead carry out horizontal reciprocating movement, crosshead drives plunger 1 back and forth to transport in the pump housing 10 again
Dynamic.When plunger 1 moves to suction direction, owing to producing vacuum in working chamber 22, medium to be compressed will be entered by inlet 21
Entering feed pathway 18 internal, then open liquid feed valve 11, at this moment medium will enter through feed liquor valve pocket 24 and be full of working chamber 22, it
Liquid feed valve 11 in rear feed liquor valve pocket 24 is closed；When plunger 1 moves to backhaul direction, the medium in working chamber 22 will be carried out by it
Compression, so that the pressure of medium raises, until it reaches predetermined pressure, high-pressure medium pushes dependence pressure reduction open tapping valve afterwards
Tapping valve 9 in chamber 25, discharges the pump housing 10, plunger 1 Zhou Erfu through discharge opeing valve pocket 25, apocenosis passage 23 from leakage fluid dram 20 then
The motion begun, makes high-pressure medium constantly discharge.High-pressure medium is when apocenosis passage 23 discharges, and the high-pressure medium of trace is also
The gap between plunger 1, gasket ring 8, U-shaped main water seal 7 can be passed sequentially through and enter in main seal cavity 19, then by spacer ring 6, baffle ring
Gap between 5 and plunger 1 enters auxiliary seal cavity 14, owing to being formed with radially flowing hole 16 on the macro ring circumference of baffle ring 5, therefore
It is internal that the high-pressure medium of this part overflow will flow back into feed pathway 18 by flowing hole 16 through intercommunicating pore 17, make the liquid of overflow
Reclaimed, thus economized on resources, improved working environment.On the other hand, during the motion of plunger 1 suction, medium can pass through intercommunicating pore
17 enter in auxiliary seal cavities 14, can utilize this certain media to cool down the frictional heat produced between plunger 1 and each sealing member, with
Improve reliability and the service life of sealing member.
Claims (3)
1. the fluid end of a high pressure reciprocating pump, it is characterised in that: the fluid end of described high pressure reciprocating pump includes
Plunger (1), connection dish (2), U-shaped secondary water seal (4), baffle ring (5), spacer ring (6), U-shaped main water seal (7), gasket ring (8), tapping valve
(9), the pump housing (10), liquid feed valve (11), pressure valve lid (13)；Its middle pump body (10) is cuboid structure, and middle part is in left-right direction
It is formed and is sequentially connected and auxiliary seal cavity (14), main seal cavity (19) and working chamber (22) that diameter is sequentially reduced, and secondary close
The external port of envelope chamber (14) is positioned on the left side of the pump housing (10)；The left end top and the bottom of the pump housing (10) are formed the most respectively
Having apocenosis passage (23) and feed pathway (18), the external port of apocenosis passage (23) is positioned at the pump housing (10) as leakage fluid dram (20)
Front end face top, the external port of feed pathway (18) is positioned at the front end face bottom of the pump housing (10) as inlet (21)；The pump housing
(10) right-hand member top and the bottom are respectively formed with the discharge opeing valve pocket (25) and feed liquor valve pocket (24) being connected with working chamber (22), and
Discharge opeing valve pocket (25) is connected with apocenosis passage (23) and feed pathway (18) respectively with feed liquor valve pocket (24), auxiliary seal cavity simultaneously
And between feed pathway (18), be also formed with intercommunicating pore (17) (14)；Liquid feed valve (11) and tapping valve (9) are separately positioned on feed liquor
In valve pocket (24) and discharge opeing valve pocket (25), and the external port of feed liquor valve pocket (24) and discharge opeing valve pocket (25) is by a pressure valve lid
(13) seal；Plunger (1) is horizontally disposed with, rear portion be movably disposed auxiliary seal cavity (14), main seal cavity (19) and
Working chamber (22) is internal, and front end is connected with the crosshead rear end on power end；Connection dish (2) is ring-type, is located at auxiliary seal cavity
(14) at external port, and it is outside to be enclosed within plunger (1)；U-shaped secondary water seal (4) is ring-type, is located at position, connection dish (2) right side
On inner peripheral surface, and contact with the outer circumference surface of plunger (1)；It is outside that baffle ring (5) is enclosed within plunger (1), by being integrally formed and also
Macro ring and little ring that row is arranged are constituted, and wherein macro ring is positioned at the right-hand member of auxiliary seal cavity (14), and little ring is positioned at main seal cavity (19)
Flowing hole (16) it has been radially formed on left end, and macro ring；Spacer ring (6), U-shaped main water seal (7) and gasket ring (8) depend on from left to right
Secondary be arranged on main seal cavity (19) in, wherein spacer ring (6) and gasket ring (8) are enclosed within outside plunger (1), U-shaped main water seal (7) then with
The outer circumference surface of plunger (1) contacts.
The fluid end of high pressure reciprocating pump the most according to claim 1, it is characterised in that: on the described pump housing (10) also
Row is provided with multiple plunger (1) and matched connection dish (2), U-shaped secondary water seal (4), baffle ring (5), spacer ring (6), U-shaped main water seal
(7), gasket ring (8), tapping valve (9), liquid feed valve (11), pressure valve lid (13).
The fluid end of high pressure reciprocating pump the most according to claim 1, it is characterised in that: described connection dish (3) with
The pump housing (10), pressure valve lid (13) are provided with O RunddichtringO (3) with the junction of the pump housing (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620712182.XU CN205805898U (en) | 2016-07-07 | 2016-07-07 | The fluid end of high pressure reciprocating pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620712182.XU CN205805898U (en) | 2016-07-07 | 2016-07-07 | The fluid end of high pressure reciprocating pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205805898U true CN205805898U (en) | 2016-12-14 |
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ID=58141394
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620712182.XU Active CN205805898U (en) | 2016-07-07 | 2016-07-07 | The fluid end of high pressure reciprocating pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205805898U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107701417A (en) * | 2017-05-05 | 2018-02-16 | 宁波钱湖石油设备有限公司 | A kind of reciprocating pump hydraulic-end structure |
| CN108019346A (en) * | 2018-01-05 | 2018-05-11 | 米顿罗工业设备（上海）有限公司 | A kind of hydraulic end of plunger pump structure with multi-sealed effect |
| US12044234B2 (en) | 2021-11-01 | 2024-07-23 | Yantai Jereh Petroleum Equipment & Technologies Co., Ltd. | Cover, fluid end and plunger pump |
-
2016
- 2016-07-07 CN CN201620712182.XU patent/CN205805898U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107701417A (en) * | 2017-05-05 | 2018-02-16 | 宁波钱湖石油设备有限公司 | A kind of reciprocating pump hydraulic-end structure |
| CN108019346A (en) * | 2018-01-05 | 2018-05-11 | 米顿罗工业设备（上海）有限公司 | A kind of hydraulic end of plunger pump structure with multi-sealed effect |
| US12044234B2 (en) | 2021-11-01 | 2024-07-23 | Yantai Jereh Petroleum Equipment & Technologies Co., Ltd. | Cover, fluid end and plunger pump |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |