CN203023036U - Plunger pump valve box structure - Google Patents
Plunger pump valve box structure Download PDFInfo
- Publication number
- CN203023036U CN203023036U CN 201220727028 CN201220727028U CN203023036U CN 203023036 U CN203023036 U CN 203023036U CN 201220727028 CN201220727028 CN 201220727028 CN 201220727028 U CN201220727028 U CN 201220727028U CN 203023036 U CN203023036 U CN 203023036U
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- axis
- plunger pump
- plunger
- valve box
- pump valve
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Abstract
The utility model discloses a plunger pump valve box structure. The plunger pump valve box structure comprises a liquid cavity, wherein the plunger end central axial line of the liquid cavity is vertical to the discharge end axial line. The plunger pump valve box structure is characterized in that the liquid cavity further comprises a suction end, and the plunger end central axial line, the discharge end axial line and the axial line of the suction end are gathered in one point to form a Y-shaped structure. The plunger pump valve box structure disclosed by the utility model overcomes the shortcomings of the prior art, and is simple and reasonable in structure, uniform in stress, enhanced in liquid cavity structure strength and long in service life of product.
Description
Technical field
The utility model relates to a kind of plunger pump valve box structure, belongs to fracturing work device technique field.
Background technique
The plunger pump clack box is easily worn part indispensable on fracturing unit truck, valve box structure is complicated, because plunger pump is in extremely abominable working environment for a long time, although adopted the very high high-quality steel of cost and retrofit technique, but because traditional sap cavity structure is not ideal, still there is following defective:
(1) as shown in Figure 1, the sap cavity 1 of tradition plunger pump valve box structure adopts the cross type structure mostly, the central axis of plunger end 3 and suction gland end 6 is on same straight line a, and the central axis of traditional suction side 7 and exhaust end 4 is on same straight line b, and straight line a and straight line b intersect vertically.This cross type structure easily produces stress and concentrates, and when not reaching 1,000,000 jig frequency frequency, the plunger pump clack box just is very easy to cracking.
(2) because of under the operating condition that is in for a long time ultrahigh pressure, large discharge capacity, high sand ratio, high concentrated acid, the plunger pump clack box is corrosion and fatigue cracking and scrap very soon.
Therefore, this class of plunger pump valve case is born high pressure, strength at repeated alternation greatly and the strong extra-high tension unit sap cavity structure reasonable in design of corrosivity, the fatigue life and the elastic carrying capacity that improve the plunger pump clack box have become a very urgent problems.The present manufacture level of the manufacturer of professional production plunger pump clack box in the world, under conventional pressure break operating conditions, the working life of plunger pump clack box is about 300 hours.
The model utility content
The technical problems to be solved in the utility model is to provide a kind of plunger pump valve box structure of simple and reasonable, long service life.
In order to solve the problems of the technologies described above, the technical solution of the utility model is to provide a kind of plunger pump valve box structure, comprise sap cavity, the plunger end central axis of sap cavity is vertical with the exhaust end axis, it is characterized in that: described sap cavity also comprises the suction side, and plunger end central axis, exhaust end axis and suction side axis junction a bit become y-type structure.
Preferably, the angle of described plunger end central axis and described exhaust end axis is 90 ° ± 25 °, the angle of described plunger end central axis and described suction side axis is 130 ° ± 25 °, the angle of described suction side axis and described exhaust end axis is 140 ° ± 25 °, and the angle three sum of angle, described suction side axis and the described exhaust end axis of the angle of described plunger end central axis and described exhaust end axis, described plunger end central axis and described suction side axis is 360 °.
The sap cavity threeway axis junction of a kind of plunger pump valve box structure that the utility model provides a bit forms y-type structure, brought up to about 600 hour from original about 300 hours working life, and hydraulic end of plunger pump clack box sap cavity can bear 140MPa for a long time with interior ultrahigh pressure, high strength at repeated alternation and high-corrosion medium condition.
A kind of plunger pump valve box structure that the utility model provides has overcome the deficiencies in the prior art, and simple and reasonable, strength is even, has strengthened the sap cavity structural strength, has increased substantially the working life of product.
Description of drawings
Fig. 1 is traditional plunger pump valve box structure schematic diagram;
A kind of plunger pump valve box structure schematic diagram that Fig. 2 provides for the utility model;
Description of reference numerals
The sap cavity of 1-tradition plunger pump valve box structure; The 2-sap cavity; The 3-plunger end; The 4-exhaust end; The 5-suction side; 6-sucks the gland end; 7-tradition suction side; The angle of A-plunger end central axis and exhaust end axis; The angle of B-plunger end central axis and suction side axis; The angle of C-suction side axis and exhaust end axis; D-threeway axis junction point.
Embodiment
For the utility model is become apparent, hereby with a preferred embodiment, and coordinate accompanying drawing to be described in detail below.
A kind of plunger pump valve box structure schematic diagram that Fig. 2 provides for the utility model, described a kind of plunger pump valve box structure mainly adopts the manufacturing of martensite high-strength steel material, 2 one-tenth y-type structures of its sap cavity.Wherein, plunger end 3 central axis are vertical with exhaust end 4 axis, and sap cavity 2 also comprises suction side 5, and plunger end 3 central axis, exhaust end axis and 1 D of suction side 5 axis (threeway) junction form y-type structure.
The y-type structure sap cavity is pressed the low cycle fatigue property parameter designing, the included angle A of plunger end 3 central axis and exhaust end 4 axes intersect is 90 ° ± 25 °, the included angle B of plunger end 3 central axis and suction side 5 axes intersect is 130 ° ± 25 °, the angle C of suction side 5 axis and exhaust end 4 axes intersect is 140 ° ± 25 °, and A+B+C=360 °.
above-mentioned plunger pump valve box structure is carried out finite Element Intensity Analysis and the interpretation of result of material low cycle fatigue property test data, analysis result shows, under desirable working condition, a kind of plunger pump valve box structure that the utility model provides has fatigue behaviour and pressure-bearing mechanical structure preferably, brought up to about 600 hour from original about 300 hours working life, can bear for a long time 140MPa with interior ultrahigh pressure, high strength at repeated alternation and high-corrosion medium condition, sap cavity body structure surface quality and the workmanship of plunger pump clack box have been guaranteed, extended the service life of plunger pump clack box.
Claims (2)
1. plunger pump valve box structure, comprise sap cavity (2), plunger end (3) central axis of sap cavity (2) is vertical with exhaust end (4) axis, it is characterized in that: described sap cavity (2) also comprises suction side (5), and plunger end (3) central axis, exhaust end (4) axis and suction side (5) axis junction a bit (D) become y-type structure.
2. a kind of plunger pump valve box structure as claimed in claim 1, it is characterized in that: the angle (A) of described plunger end (3) central axis and described exhaust end (4) axis is 90 ° ± 25 °, the angle (B) of described plunger end (3) central axis and described suction side (5) axis is 130 ° ± 25 °, the angle (C) of described suction side (5) axis and described exhaust end (4) axis is 140 ° ± 25 °, and the angle (A) of described plunger end (3) central axis and described exhaust end (4) axis, the angle (B) of described plunger end (3) central axis and described suction side (5) axis, the angle three sum of described suction side (5) axis and described exhaust end (4) axis is 360 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220727028 CN203023036U (en) | 2012-12-25 | 2012-12-25 | Plunger pump valve box structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220727028 CN203023036U (en) | 2012-12-25 | 2012-12-25 | Plunger pump valve box structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203023036U true CN203023036U (en) | 2013-06-26 |
Family
ID=48647025
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220727028 Expired - Lifetime CN203023036U (en) | 2012-12-25 | 2012-12-25 | Plunger pump valve box structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203023036U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106968659A (en) * | 2017-05-16 | 2017-07-21 | 华美孚泰油气增产技术服务有限责任公司 | Shale oil gas hydraulic fracturing Combined Y pumping system |
-
2012
- 2012-12-25 CN CN 201220727028 patent/CN203023036U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106968659A (en) * | 2017-05-16 | 2017-07-21 | 华美孚泰油气增产技术服务有限责任公司 | Shale oil gas hydraulic fracturing Combined Y pumping system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130626 |
|
| CX01 | Expiry of patent term |