CN209340533U - Reset spring assists guide type list guiding stem valve and its mounting structure - Google Patents
Reset spring assists guide type list guiding stem valve and its mounting structure Download PDFInfo
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- CN209340533U CN209340533U CN201821637563.1U CN201821637563U CN209340533U CN 209340533 U CN209340533 U CN 209340533U CN 201821637563 U CN201821637563 U CN 201821637563U CN 209340533 U CN209340533 U CN 209340533U
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Abstract
The utility model relates to fracturing pump field more particularly to reset spring auxiliary guide type list guiding stem valves and its mounting structure.Its technical solution are as follows: reset spring assists guide type list to be oriented to stem valve, including valve body, valve body rubber is arranged on tapered surface on valve body for contacting with valve seat, one end on valve body far from valve body rubber is respectively fixed with guide rod and reset spring, the diameter range of guide rod is 18-22mm, the 302 stainless steel spring lines that the material of reset spring is 50CrVA spring wire or spring linear diameter is 4.5-5mm.Reset spring assists the mounting structure of guide type list guiding stem valve, including clack box ontology, is provided with control chamber in clack box ontology, retainer is equipped in control chamber, is fixed with guide tube in retainer；It controls cavity inner sleeve and is equipped with single guiding stem valve.Stability is high when the utility model provides a kind of mobile, does not influence the reset spring auxiliary guide type list guiding stem valve and its mounting structure of valve seat drawing.
Description
Technical field
The utility model relates to fracturing pump field more particularly to reset spring auxiliary guide type list guiding stem valve and its installations
Structure.
Background technique
The critical component valve assembly of existing pressure break pump hydraulic end (also known as Fracturing Pump Valve Box) is using double guide rods
Valve.Double guiding stem valves are in reciprocal opening and closing movement, by the guide rod and retainer and guiding pallet above and below valve body
Righting bushing carries out righting guiding.
The advantages of double guiding stem valves: valve body is with good stability in reciprocal opening and closing movement, thus fracturing pump fluid power
End also obtains better job stability, and pendulum effect can be reduced to slight degree, therefore valve assembly is with preferably resistance to
With property, reliability.
The deficiency of double guiding stem valves: in the valve seat of maintenance replacement damage, due to being oriented to the presence of pallet, so that drawer
The passability by valve seat through-hole of tool reduces, and rigidity, the intensity of drawing device are also weakened, and drawing takes out valve seat and compares four paws
Guide valve wants difficult very much, in some instances it may even be possible to the feelings that impaired valve seat is replaced in drawing device maintenance can not be just commonly used when there are individual cases
Condition increases labor intensity and managing risk that on-site maintenance more changes jobs.
Utility model content
The utility model overcomes the deficiencies in the prior art, and stability is high when providing a kind of mobile, does not influence valve seat drawing
Reset spring auxiliary guide type list guiding stem valve and its mounting structure, the guiding support being arranged when solving using double guiding stem valves
Disk reduces the problem of being drawn through space of valve seat.
In order to solve the above technical problems, the utility model uses following technical scheme:
Reset spring assists guide type list to be oriented to stem valve, including valve body, the tapered surface for being used to contact with valve seat on valve body
It is arranged with valve body rubber, one end far from valve body rubber is respectively fixed with guide rod and reset spring on valve body；It is oriented to shank diameter
Range is 18-22mm, and valve body Lift is lower, then it is bigger to be oriented to shank diameter, and our factory value is 20mm.The diameter of reset spring
Range is 68-75mm, and related with spring own material and height and pitch, our factory is taken as 69mm；The selection of reset spring material
Be 302 stainless steel spring lines (spring linear diameter 4.5-5mm) or 50CrVA spring wire.
It as a preferred embodiment of the present invention, is plane in the middle part of the end face of the one end of valve body far from guide rod.
Reset spring assists the mounting structure of guide type list guiding stem valve, including clack box ontology, is provided in clack box ontology
Control chamber is equipped with retainer in control chamber, is fixed with guide tube in retainer；It controls cavity inner sleeve and is equipped with single guiding stem valve, singly lead
Include valve body to stem valve, valve body rubber, separate valve body glue on valve body are arranged on the tapered surface for being used to contact with valve seat on valve body
One end of skin is respectively fixed with guide rod and reset spring, and guide rod is sheathed in guide tube, and reset spring is connect with retainer, multiple
Position spring is sheathed in the annular space between retainer and guide tube far from one end of valve body；Guide rod diameter range is 18-
22mm, valve body Lift is lower, then it is bigger to be oriented to shank diameter, and our factory value is 20mm.The diameter range of reset spring is 68-
75mm, related with spring own material and height and pitch, our factory is taken as 69mm；The selection of reset spring material is not 302 not
Become rusty steel spring line (spring linear diameter 4.5-5mm) or 50CrVA spring wire.
As a preferred embodiment of the present invention, it is provided with valve seat step in the control chamber, is successively set on valve seat step
It is equipped with valve seat gasket and valve seat, valve seat one end and valve body contact far from valve seat gasket.
It as a preferred embodiment of the present invention, is plane in the middle part of the end face of the one end of the valve body far from guide rod.
Compared with prior art, the utility model has the beneficial effects that
1, when the guide rod that the top guiding of the valve body of the utility model uses overstriking is back and forth opened and closed movement as valve body
Dominate to and improving offsetting spring structure (using the cylindricality reset spring of enough error resilience position rigidity) and its assembling structure, allow
Reset spring is able to carry out auxiliary guiding.To which the utility model has identical with double guiding stem valves steady in moving process
It is qualitative.
The lower seat through hole of the valve body of the utility model eliminates guiding pallet, and fluid overcurrent condition is preferably changed
It is kind, reduce the formation of wadding stream, improve stability when valve body back and forth be opened and closed movement, therefore, novel resetting spring assists leading
There can be good job stability to formula list guiding stem valve.
The guiding pallet that traditional double guiding stem valves have been canceled below valve body avoids guiding pallet and makes to drawing device
At blocking, so that solving drawing device when impaired valve seat is replaced in maintenance passes through difficulty, it is difficult to which the bottleneck that valve seat is taken out in drawing is difficult
Topic.It is proved by commerical test, it is suitable with traditional double guiding stem valves that novel resetting spring assists guide type list guiding stem valve to have
Job stability, durability, while being provided with good easy to maintain again.
It 2, is plane in the middle part of the end face of the one end of valve body far from guide rod, thus do not need that guide rod is arranged again here,
Overcurrent condition is improved, drawing device is facilitated and protrudes into seating position.
3, reset spring and retainer connect, and reset spring is sheathed between retainer and guide tube far from one end of valve body
In annular space, then the stability of reset spring improves, and reset spring is enabled to play the role of auxiliary guiding.
4, valve seat gasket and valve seat are disposed on valve seat step, valve seat gasket can play a protective role to valve seat, subtract
The damage of few valve seat, extends the service life of valve seat.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of single guiding stem valve；
Fig. 2 is the installation diagram of single guiding stem valve；
Fig. 3 is the structural schematic diagram for being equipped with the pressure break pump hydraulic end of double guiding stem valves；
Fig. 4 is the installation diagram of double guiding stem valves；
Fig. 5 is that installation single guiding stem valve rear valve base is drawn through space schematic diagram；
Fig. 6 is that installation double guiding stem valve rear valve bases are drawn through space schematic diagram.
In figure, 1- valve body, 2- valve body rubber, 3- guide rod, 4- reset spring, 5- clack box ontology, 6- retainer, 7- led
Cylinder, 8- valve seat gasket, 9- valve seat, 10- are oriented to pallet.
Specific embodiment
With reference to the accompanying drawing, the utility model is described in detail.
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only to explain this
Utility model is not used to limit the utility model.
Spring assists the correlation analysis and experimental test data of guide type list guiding stem valve:
1, without impact condition analysis:
According to formulaVIt is lower to permitIt is the Maximum Contact impact velocity allowed when valve body 1 falls, for punching
Journey between 152-280mm, jig frequency 50-280r/min fracturing pump, it is specified that VIt is lower to permit≤18 (cm/s)；A is that valve body 1 (contains valve
Body rubber) contact of falling (when closing) real contact area；M is valve body (rubber containing valve body 2) quality.
By calculating: working as VIt is lower to permitWhen=18 (cm/s), β calculated value is 1.35 (kg0.5/ cm.s) meet ideal recommendation range
1.2-1.4(kg0.5/cm.s)。
2, the effective overflow section product comparison of valve seat through-hole:
According to theoretical practical valve seat area of passage AOvercurrent=AThrough-hole-AIt hinders；
Obviously, the practical area of passage A of spring auxiliary guide type list guiding stem valveOvercurrentGreater than traditional double guiding stem valves.
3, noise measuring data (reaction valve body is back and forth opened and closed stability, pendulum effect when moving) in commerical test:
Operating noise inspection is carried out in commerical test, using PMU monitoring system to fluid end valve assembly working condition at the scene
It surveys, assists guide type list to be oriented to stem valve identical with novel spring by contrasting detection, traditional four paws guide valve, double guiding stem valves
Under operating condition, noise-measuring value such as following table when working normally.
As it can be seen that the operation is stable degree of novel spring auxiliary guide type list guiding stem valve is higher than traditional four paws guide valve, reaches
To the degree of stability of double guiding stem valve work, it is with good stability that valve body is back and forth opened and closed movement.
4, the data statistics of valve assembly durability is as follows: in commerical test
As it can be seen that the whole durability of novel spring auxiliary guide type list guiding stem valve is higher than traditional four paws guide valve and double
Guiding stem valve equally has good durability.
Embodiment one
Reset spring assists guide type list to be oriented to stem valve, including valve body 1, the tapered surface for being used to contact with valve seat on valve body 1
On be arranged with valve body rubber 2, one end on valve body 1 far from valve body rubber is respectively fixed with guide rod 3 and reset spring 4；Guiding
3 diameter range of bar is 18-22mm, and 1 Lift of valve body is lower, then 3 diameter of guide rod is bigger, and our factory value is 20mm.It resets
The diameter range of spring 4 is 68-75mm, and related with spring own material and height and pitch, our factory is taken as 69mm；Reset bullet
The material selection of spring 4 is 302 stainless steel spring lines (spring linear diameter 4.5-5mm) or 50CrVA spring wire.
When the guide rod 3 that the top guiding of the valve body 1 of the utility model uses overstriking is back and forth opened and closed movement as valve body 1
Dominate to, and improve 4 structure of reset spring (using the cylindricality reset spring 4 of enough error resilience position rigidity) and its assembling structure,
Reset spring 4 is allowed to be able to carry out auxiliary guiding.To which the utility model has identical as double guiding stem valves in moving process
Stability.
9 through hole of lower seat of the valve body 1 of the utility model eliminate guiding pallet 10, fluid overcurrent condition obtain compared with
It is good to improve, reduce the formation of wadding stream, improve valve body 1 back and forth opening and closing movement when stability, therefore, novel resetting spring it is auxiliary
Help guide type list guiding stem valve that there can be good job stability.
The guiding pallet 10 that traditional double guiding stem valves have been canceled below valve body 1 avoids guiding pallet 10 to drawing
Tool causes to stop, so that solving drawing device when impaired valve seat 9 is replaced in maintenance passes through difficulty, it is difficult to which valve seat 9 is taken out in drawing
Bottleneck problem.It is proved by commerical test, novel resetting spring assists guide type list guiding stem valve to have and traditional double guiding
The comparable job stability of stem valve, durability, while it being provided with good easy to maintain again.
Embodiment two
It on the basis of example 1, is plane in the middle part of the end face of the described one end of valve body 1 far from guide rod 3.
It is plane in the middle part of the end face of the one end of valve body 1 far from guide rod 3, thus do not need that guide rod 3 is arranged again here,
Overcurrent condition is improved, drawing device is facilitated and protrudes into seating position.
Embodiment three
Reset spring assists the mounting structure of guide type list guiding stem valve, including clack box ontology 5, setting in clack box ontology 5
There is control chamber, retainer 6 is installed in control chamber, guide tube 7 is fixed in retainer 6；It controls cavity inner sleeve and is equipped with single guiding stem valve,
Single guiding stem valve includes valve body 1, is arranged with valve body rubber 2 on the tapered surface on valve body 1 for contact with valve seat, on valve body 1 far
One end from valve body rubber is respectively fixed with guide rod 3 and reset spring 4, and guide rod 3 is sheathed in guide tube 7, reset spring 4 with
Retainer 6 connects, and reset spring 4 is sheathed in the annular space between retainer 6 and guide tube 7 far from one end of valve body 1；It leads
It is 18-22mm to 3 diameter range of bar, 1 Lift of valve body is lower, then 3 diameter of guide rod is bigger, and our factory value is 20mm.It is multiple
The diameter range of position spring 4 is 68-75mm, and related with spring own material and height and pitch, our factory is taken as 69mm；It resets
The material selection of spring 4 is 302 stainless steel spring lines (spring linear diameter 4.5-5mm) or 50CrVA spring wire.
When the guide rod 3 that the top guiding of the valve body 1 of the utility model uses overstriking is back and forth opened and closed movement as valve body 1
Dominate to, and improve 4 structure of reset spring (using the cylindricality reset spring 4 of enough error resilience position rigidity) and its assembling structure,
Reset spring 4 is allowed to be able to carry out auxiliary guiding.To which the utility model has identical as double guiding stem valves in moving process
Stability.
9 through hole of lower seat of the valve body 1 of the utility model eliminate guiding pallet 10, fluid overcurrent condition obtain compared with
It is good to improve, reduce the formation of wadding stream, improve valve body 1 back and forth opening and closing movement when stability, therefore, novel resetting spring it is auxiliary
Help guide type list guiding stem valve that there can be good job stability.
The guiding pallet 10 that traditional double guiding stem valves have been canceled below valve body 1 avoids guiding pallet 10 to drawing
Tool causes to stop, so that solving drawing device when impaired valve seat 9 is replaced in maintenance passes through difficulty, it is difficult to which valve seat 9 is taken out in drawing
Bottleneck problem.It is proved by commerical test, novel resetting spring assists guide type list guiding stem valve to have and traditional double guiding
The comparable job stability of stem valve, durability, while it being provided with good easy to maintain again.
Reset spring 4 is connect with retainer 6, reset spring 4 far from one end of valve body 1 be sheathed on retainer 6 and guide tube 7 it
Between annular space in, then reset spring 4 stability improve, enable reset spring 4 play the role of auxiliary guiding.
Example IV
On the basis of above-mentioned any one embodiment, be provided with valve seat step in the control chamber, on valve seat step according to
Secondary to be provided with valve seat gasket 8 and valve seat 9, the one end of valve seat 9 far from valve seat gasket 8 is contacted with valve body 1.
Valve seat gasket 8 and valve seat 9 are disposed on valve seat step, valve seat pad, 8 can play a protective role to valve, 9, subtract
The damage of few valve seat 9, extends the service life of valve seat 9.
Claims (5)
1. reset spring assists guide type list to be oriented to stem valve, which is characterized in that including valve body (1), be used on valve body (1) and valve seat
It is arranged on the tapered surface of contact valve body rubber (2), one end on valve body (1) far from valve body rubber is respectively fixed with guide rod
(3) and reset spring (4), the diameter range of guide rod (3) are 18-22mm, and the material of reset spring (4) is 50CrVA spring wire
Or spring linear diameter is the 302 stainless steel spring lines of 4.5-5mm.
2. reset spring auxiliary guide type list according to claim 1 is oriented to stem valve, which is characterized in that the valve body (1)
It is plane in the middle part of the end face of one end far from guide rod (3).
3. the mounting structure that reset spring assists guide type list guiding stem valve, which is characterized in that including clack box ontology (5), clack box
It is provided with control chamber in ontology (5), is equipped in control chamber retainer (6), is fixed with guide tube (7) in retainer (6)；Control chamber
Inside it is arranged with single guiding stem valve, single stem valve that is oriented to includes valve body (1), the tapered surface on valve body (1) for contacting with valve seat (9)
It is arranged with valve body rubber (2), one end on valve body (1) far from valve body rubber is respectively fixed with guide rod (3) and reset spring
(4), guide rod (3) is sheathed in guide tube (7), and reset spring (4) is connect with retainer (6), and reset spring (4) is far from valve body
(1) one end is sheathed in the annular space between retainer (6) and guide tube (7), and the diameter range of guide rod (3) is 18-
22mm, the 302 stainless steel spring lines that the material of reset spring (4) is 50CrVA spring wire or spring linear diameter is 4.5-5mm.
4. the mounting structure of reset spring auxiliary guide type list guiding stem valve according to claim 3, which is characterized in that institute
It states and is provided with valve seat step in control chamber, valve seat gasket (8) and valve seat (9) are disposed on valve seat step, valve seat (9) is separate
One end of valve seat gasket (8) is contacted with valve body (1).
5. the mounting structure of reset spring auxiliary guide type list guiding stem valve according to claim 3 or 4, feature exist
In the valve body (1) is plane in the middle part of the end face far from the one end of guide rod (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821637563.1U CN209340533U (en) | 2018-10-09 | 2018-10-09 | Reset spring assists guide type list guiding stem valve and its mounting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821637563.1U CN209340533U (en) | 2018-10-09 | 2018-10-09 | Reset spring assists guide type list guiding stem valve and its mounting structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209340533U true CN209340533U (en) | 2019-09-03 |
Family
ID=67745605
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821637563.1U Active CN209340533U (en) | 2018-10-09 | 2018-10-09 | Reset spring assists guide type list guiding stem valve and its mounting structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209340533U (en) |
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2018
- 2018-10-09 CN CN201821637563.1U patent/CN209340533U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201009 Address after: 618300, No. two, Nanchang Road, Guanghan, Sichuan, Deyang 48 Patentee after: SICHUAN BAOSHI MACHINERY SPECIAL VEHICLE Co.,Ltd. Patentee after: CHINA NATIONAL PETROLEUM Corp. Address before: 610052 Longtan Industrial Park, two ring road, East Three Ring Road, Chengdu, Chenghua District, Sichuan Patentee before: BAOSHI MACHINERY CHENGDU EQUIPMENT MANUFACTURING BRANCH |