CN207485403U - A kind of saddle ball-type formula fluid end assembly - Google Patents
A kind of saddle ball-type formula fluid end assembly Download PDFInfo
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- CN207485403U CN207485403U CN201721416189.8U CN201721416189U CN207485403U CN 207485403 U CN207485403 U CN 207485403U CN 201721416189 U CN201721416189 U CN 201721416189U CN 207485403 U CN207485403 U CN 207485403U
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- discharge
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- valve seat
- valve body
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Abstract
The utility model is related to a kind of saddle ball-type formula fluid end assemblies, including clack box, discharge high-pressure chamber and sucking low pressure volumes are provided in clack box, and be respectively equipped with suction valve assembly and discharge valve assembly in above-mentioned the two；Suction valve assembly includes the first seal assembly and the first spring；First seal assembly is located in the bottom taper hole of discharge high-pressure chamber, and the upper end is connected by the first spring with discharge gland；Second seal assembly is located in the bottom taper hole of sucking low pressure volumes, and the upper end is connected by second spring with spring base；Institute's spring base is externally provided with spring base sheath and compression spring；First seal assembly includes valve seat, valve body and guide grab；Valve body is equipped with above valve seat；Valve body is hemispherical, and its center is provided with through-hole, and valve seat is equipped with the conical socket being adapted with valve body lower end；The inner wall of through-hole is equipped with guide grab, and guide grab lower end is located in the valve seat orifice of valve seat, is contacted between the valve seat and valve body of the utility model using arc surface, and be oriented to using guide grab, sealing effect is good.
Description
Technical field
The utility model belongs to natural gas energy resource exploitation, oil, fracturing work technical field more particularly to a kind of saddle ball
Pattern fluid end assembly.
Background technology
Fluid end assembly is important easily worn part indispensable on fracturing unit truck, since fluid end assembly is chronically at high-pressure fluid
It works in the adverse circumstances of medium；Particularly a large amount of exploitations of the oil of recent domestic, natural gas, shale gas etc., exploitation
Difficulty is continuously increased, higher and higher to the performance requirement of fracturing device；Existing fluid end assembly as shown in Figure 1, is deposited
The problem of be：Whole complicated, low production efficiency, while valve valve seat 1 and valve valve body 2 are fragile, valve rubber 3 holds
Vulnerable leakage；Some producers make spherical sealed structure into, and when medium inspiration, spherical surface is opened, and is rushed in instantaneous high-pressure medium
Pressure, the position of valve valve body easily deviate, and cause sealing effect poor, and integral disassembly, assembly is difficult, and it is inconvenient to replace.
Utility model content
The utility model aim is that provide a kind of sealing effect for overcome the deficiencies in the prior art good, simple in structure,
And the saddle ball-type formula fluid end assembly convenient for safeguarding and dismounting.
In order to achieve the above objectives, the technical solution adopted in the utility model is：A kind of saddle ball-type formula fluid end assembly, packet
Clack box is included, the discharge high-pressure chamber of side and downside disposed thereon respectively and sucking low pressure volumes are provided in the clack box, and above-mentioned
The two is interconnected；The top of the discharge high-pressure chamber is equipped with discharge gland, and discharges and discharge pressure cap is equipped with above gland；Institute
The side for stating sucking low pressure volumes is equipped with sucking gland, and the outside for sucking gland is equipped with sucking pressure cap, the discharge high pressure chest
Suction valve assembly and discharge valve assembly are respectively equipped in body and sucking low pressure volumes；The suction valve assembly includes the first sealing group
Part and the first spring；First seal assembly is located in the bottom taper hole of discharge high-pressure chamber, and the upper end passes through the first bullet
Spring is connected with discharge gland；Second seal assembly is located in the bottom taper hole of sucking low pressure volumes, and the upper end is equipped with the
Two springs；The second spring is connected with spring base；The spring base is externally provided with spring base sheath；The spring base sheath upper end
Equipped with compression spring；The structure of first seal assembly and the second seal assembly is identical；First seal assembly includes valve seat, valve
Body and guide grab；Valve body is equipped with above the valve seat；The valve body is hemispherical, and its center is provided with through-hole, and valve seat is equipped with
The conical socket being adapted with valve body lower end；The inner wall of the through-hole is equipped with multiple guide grabs, and guide grab lower end is located at valve seat
Valve seat orifice in.
Preferably, discharge gland Sealing shield ring is additionally provided between the discharge gland and clack box.
Preferably, the quantity of the guide grab is four, and aforementioned four guide grab is about the rounded array distribution of through-hole.
Preferably, it is described that PEEK sealing rings are additionally provided on the conical surface of valve seat.
Preferably, the valve body takes plating ENP techniques to be process.
Preferably, the valve body upper end is in boss-shaped.
Due to the utilization of above-mentioned technical proposal, the utility model has following advantages compared with prior art：This practicality is new
The fluid end assembly of type scheme is contacted using arc surface between valve seat and valve body, and is oriented to using guide grab, so as to ensure
Sealing effect, compact overall structure, processing is simple, and service life is long, meets practical production requirement and meets practical
Using.
Description of the drawings
Technical solutions of the utility model are described further below in conjunction with the accompanying drawings.
Attached drawing 1 is the structure diagram of the prior art.
Attached drawing 2 is the structure diagram of the utility model.
Attached drawing 3 is the partial enlarged view in attached drawing 2.
Attached drawing 4 is the partial enlarged view in attached drawing 2.
Attached drawing 5 is the structure diagram that valve body is connected with guide grab.
Structure diagram of the attached drawing 6 for another visual angle of attached drawing 5.
Wherein：1st, valve valve seat；2nd, valve valve body；3rd, valve rubber；10th, clack box；11st, high-pressure chamber is discharged；12nd, it sucks low
Press cavity；13rd, gland is discharged；14th, pressure cap is discharged；15th, gland is sucked；16th, pressure cap is sucked；17th, gland Sealing shield ring is discharged；
18th, PEEK sealing rings；101st, valve seat；102nd, valve body；103rd, guide grab；104th, through-hole；110th, the first spring；120th, the second bullet
Spring；121st, spring base；122nd, spring base sheath；123rd, compression spring.
Specific embodiment
Below in conjunction with the accompanying drawings and specific embodiment the utility model is described in further detail.
A kind of saddle ball-type formula fluid end assembly described in the utility model as shown in attached drawing 2-6, including clack box 10, institute
It states and the discharge high-pressure chamber 11 of side and downside disposed thereon respectively and sucking low pressure volumes 12 is provided in clack box 10, and is both above-mentioned
It is interconnected；The top of the discharge high-pressure chamber 11 is equipped with discharge gland 13, and discharges 13 top of gland and be equipped with discharge pressure cap
14；The side of the sucking low pressure volumes 12 is equipped with sucking gland 15, and the outside for sucking gland 15 is equipped with sucking pressure cap 16, institute
It states in discharge high-pressure chamber 11 and sucking low pressure volumes 12 and is respectively equipped with suction valve assembly and discharge valve assembly；The sucking valve group
Part includes the first seal assembly and the first spring 110；First seal assembly is located at the bottom taper hole of discharge high-pressure chamber 11
It is interior, and the upper end is connected by the first spring 110 with discharge gland 13；Second seal assembly is located at sucking low pressure volumes 12
Bottom taper hole in, and the upper end be equipped with second spring 120；The second spring 120 is connected with spring base 121；The spring
Seat 121 is externally provided with spring base sheath 122；122 upper end of spring base sheath is equipped with compression spring；First seal assembly and second
The structure of seal assembly is identical；First seal assembly includes valve seat 101, valve body 102 and guide grab 103；The valve seat 101
Top is equipped with valve body 102；The valve body 102 is hemispherical, and its center is provided with through-hole 104, and valve seat 101 is equipped with and valve body
The conical socket that 102 lower ends are adapted；The inner wall of the through-hole 104 is equipped with multiple guide grabs 103, and 103 lower end of guide grab position
In in the valve seat orifice of valve seat 101；Discharge gland Sealing shield ring 17 is additionally provided between the discharge gland 13 and clack box 10；It is described to lead
It it is four to the quantity of pawl 103, and aforementioned four guide grab 103 is about 104 rounded array distribution of through-hole；The valve seat 101
PEEK sealing rings 18 are additionally provided between clack box 10；The valve body 102 takes plating ENP techniques to be process；On the valve body 102
End is in boss-shaped.
During specific use, when high-pressure medium flows into clack box, valve body opens closure above and below valve seat, due to valve
The shape of body is spherical in shape, and employing arc surface between the lower part of such valve body and valve seat contacts, while four are equipped in valve body
A guide grab, and guide grab is always without departing from valve seat orifice, it, will not so as to play guiding role when moving up and down to valve body
Lead to the position offset of valve body, ensure that sealing station is constant, reach good sealing function.
And the utility model reduces the parts such as valve body guide holder in original fluid end assembly, valve rubber, sheath,
So as to reduce the processing component difficulty of technique, convenient for the dismounting and maintenance in later stage.
Further, PEEK sealing rings are additionally provided on the conical surface of valve seat, plating ENP techniques are taken in the processing of valve body, in this way
Ensure valve seat both resistance to erosion, while sealing performance is again good.
Wherein, it discharges and discharge gland Sealing shield ring is additionally provided between gland and clack box, ensure leakproofness between the two.
The saddle ball-type formula fluid end assembly of the utility model is contacted using arc surface between valve seat and valve body, and utilized
Guide grab is oriented to, and so as to ensure that sealing effect, compact overall structure, processing is simple, and service life is long, meets practical
Production requirement and the application for meeting reality.
It the above is only the concrete application example of the utility model, do not form any limit to the scope of protection of the utility model
System.All technical solutions formed using equivalent transformation or equivalent replacement, all fall within the utility model rights protection scope it
It is interior.
Claims (6)
1. a kind of saddle ball-type formula fluid end assembly including clack box, is provided in the clack box and distinguishes side and downside disposed thereon
High-pressure chamber and sucking low pressure volumes are discharged, and both above-mentioned interconnected；The top of the discharge high-pressure chamber is equipped with discharge
Gland, and discharge and discharge pressure cap is equipped with above gland；The side of the sucking low pressure volumes is equipped with sucking gland, and suck gland
Outside be equipped with sucking pressure cap, it is characterised in that：Inlet valve is respectively equipped in the discharge high-pressure chamber and sucking low pressure volumes
Component and discharge valve assembly；The suction valve assembly includes the first seal assembly and the first spring；The first seal assembly position
In discharge high-pressure chamber bottom taper hole in, and the upper end by the first spring with discharge gland be connected；Second seal assembly position
In sucking low pressure volumes bottom taper hole in, and the upper end be equipped with second spring；The second spring is connected with spring base；It is described
Spring base is externally provided with spring base sheath；The spring base sheath upper end is equipped with compression spring；First seal assembly and the second sealing
The structure of component is identical；First seal assembly includes valve seat, valve body and guide grab；Valve body is equipped with above the valve seat；Institute
It is hemispherical to state valve body, and its center is provided with through-hole, valve seat is equipped with the conical socket being adapted with valve body lower end；The through-hole
Inner wall be equipped with multiple guide grabs, and guide grab lower end is located in the valve seat orifice of valve seat.
2. saddle ball-type formula fluid end assembly according to claim 1, it is characterised in that：It is described discharge gland and clack box it
Between be additionally provided with discharge gland Sealing shield ring.
3. saddle ball-type formula fluid end assembly according to claim 1 or 2, it is characterised in that：The quantity of the guide grab
It it is four, and aforementioned four guide grab is about the rounded array distribution of through-hole.
4. saddle ball-type formula fluid end assembly according to claim 1, it is characterised in that：It is also set on the conical surface of the valve seat
There are PEEK sealing rings.
5. saddle ball-type formula fluid end assembly according to claim 1, it is characterised in that：The valve body takes plating ENP works
Skill is process.
6. saddle ball-type formula fluid end assembly according to claim 1, it is characterised in that：The valve body upper end is in boss
Shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721416189.8U CN207485403U (en) | 2017-10-28 | 2017-10-28 | A kind of saddle ball-type formula fluid end assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721416189.8U CN207485403U (en) | 2017-10-28 | 2017-10-28 | A kind of saddle ball-type formula fluid end assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207485403U true CN207485403U (en) | 2018-06-12 |
Family
ID=62478224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721416189.8U Active CN207485403U (en) | 2017-10-28 | 2017-10-28 | A kind of saddle ball-type formula fluid end assembly |
Country Status (1)
| Country | Link |
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| CN (1) | CN207485403U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111287955A (en) * | 2020-02-26 | 2020-06-16 | 盐城市崇达石化机械有限公司 | Guide frame spherical type hydraulic end assembly |
| CN111287954A (en) * | 2020-02-26 | 2020-06-16 | 盐城市崇达石化机械有限公司 | High pressure plunger pump valve body seal structure |
-
2017
- 2017-10-28 CN CN201721416189.8U patent/CN207485403U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111287955A (en) * | 2020-02-26 | 2020-06-16 | 盐城市崇达石化机械有限公司 | Guide frame spherical type hydraulic end assembly |
| CN111287954A (en) * | 2020-02-26 | 2020-06-16 | 盐城市崇达石化机械有限公司 | High pressure plunger pump valve body seal structure |
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