CN202991451U - U-shaped water-feeding chamber liquid cavity plunger pump valve box structure - Google Patents
U-shaped water-feeding chamber liquid cavity plunger pump valve box structure Download PDFInfo
- Publication number
- CN202991451U CN202991451U CN 201220725981 CN201220725981U CN202991451U CN 202991451 U CN202991451 U CN 202991451U CN 201220725981 CN201220725981 CN 201220725981 CN 201220725981 U CN201220725981 U CN 201220725981U CN 202991451 U CN202991451 U CN 202991451U
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- China
- Prior art keywords
- sap cavity
- liquid cavity
- feeding chamber
- upper tank
- plunger pump
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model provides a U-shaped water-feeding chamber liquid cavity plunger pump valve box structure. A water-feeding chamber liquid cavity axis of a liquid cavity of the U-shaped water-feeding chamber liquid cavity plunger pump valve box structure, a discharge end axis and a plunger end axis are converged at one point to form a Y-shaped structure, an upper included angle of the water-feeding chamber liquid cavity is 15+/-5 degrees, a lower included angle of the water-feeding chamber liquid cavity is 20+/-5 degrees, the radius of a transition circular arc of a suction inlet of the water-feeding chamber liquid cavity is 8mm-20mm, and the radius of a transition circular arc of an included angle of the water-feeding chamber liquid cavity is 8mm-40mm. The U-shaped water-feeding chamber liquid cavity plunger pump valve box structure overcomes the shortcomings in the prior art, is simple and reasonable in structure, reduces abrasion degree of a cavity wall, and improves abrasion resistance of products.
Description
Technical field
The utility model relates to a kind of U-shaped upper tank sap cavity 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 of tradition plunger pump valve box structure adopts the cross type structure mostly, the central axis of plunger end 3 and suction gland end 5 is on same straight line a, and the central axis of hydroecium sap cavity 1 and exhaust end 4 is on same straight line b traditionally, and straight line a and straight line b intersect vertically.Hydroecium sap cavity 1 is the step cylinder type traditionally, and high-pressure liquid easily produces eddy current, forms resistance, hinders Fluid Flow in A smooth and easy.
(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 of corrosivity, upper tank sap cavity structure reasonable in design, the fatigue life and the elastic carrying capacity that improve the plunger pump clack box have become a very urgent problems.
The model utility content
The technical problems to be solved in the utility model is to provide a kind of simple and reasonable, plunger pump valve box structure that upper tank sap cavity wear resistance is good.
In order to solve the problems of the technologies described above, the technical solution of the utility model is to provide a kind of U-shaped upper tank sap cavity 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 upper tank sap cavity, and junction a bit becomes y-type structure with the plunger end axis for upper tank sap cavity axis, exhaust end axis; On the upper tank sap cavity, angle is 15 ° ± 5 °, and under the upper tank sap cavity, angle is 20 ° ± 5 °.
Preferably, described upper tank sap cavity suction port transition arc radius is 8mm～20mm.
Preferably, described upper tank sap cavity angle transition arc radius is 8mm～40mm.
The sap cavity threeway axis junction of a kind of U-shaped upper tank sap cavity plunger pump valve box structure that the utility model provides a bit forms y-type structure, the upper tank sap cavity is designed to U-shaped structure, eliminated and produced by sap cavity the resistance that eddy current forms because of high-pressure liquid, make high-pressure liquid smooth, reduce the degree of wear of chamber wall, thereby improved the wear resistance of product.
A kind of U-shaped upper tank sap cavity plunger pump valve box structure that the utility model provides has overcome the deficiencies in the prior art, and is simple and reasonable, reduced the degree of wear of chamber wall, improved the wear resistance of product.
Description of drawings
Fig. 1 is traditional plunger pump valve box structure schematic diagram;
A kind of U-shaped upper tank sap cavity plunger pump valve box structure schematic diagram that Fig. 2 provides for the utility model;
Description of reference numerals
1-is the hydroecium sap cavity traditionally; 2-upper tank sap cavity; The 3-plunger end; The 4-exhaust end; 5-sucks the gland end; Angle on A-upper tank sap cavity; Angle under B-upper tank sap cavity; C-upper tank sap cavity angle transition arc; D-upper tank sap cavity suction port transition arc; E-threeway 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, and its sap cavity becomes y-type structure.Wherein, plunger end 3 central axis are vertical with exhaust end 4 axis, and plunger end 3 central axis, exhaust end 4 axis and 1 E of upper tank sap cavity 2 axis (threeway) junction form y-type structure.
Upper tank sap cavity 2 is designed to U-shaped structure, and on upper tank sap cavity 2, included angle A is 15 ° ± 5 °, and 2 times included angle B of upper tank sap cavity are 20 ° ± 5 °.Upper tank sap cavity 2 angle transition arc C radiuses are 8mm～40mm, and upper tank sap cavity 2 suction port transition arc D radiuses are 8mm～20mm.
The sap cavity threeway axis junction of a kind of U-shaped upper tank sap cavity plunger pump valve box structure that the utility model provides a bit forms y-type structure, the upper tank sap cavity is designed to U-shaped structure, eliminated and produced by sap cavity the resistance that eddy current forms because of high-pressure liquid, make high-pressure liquid smooth, reduce the degree of wear of chamber wall, thereby improved the wear resistance of product.
Claims (3)
1. U-shaped upper tank sap cavity plunger pump valve box structure, comprise sap cavity, the plunger end of sap cavity (3) central axis is vertical with exhaust end (4) axis, it is characterized in that: described sap cavity also comprises upper tank sap cavity (2), and the axis junction a bit becomes y-type structure with plunger end (3) for upper tank sap cavity (2) axis, exhaust end (4) axis; The upper angle (A) of upper tank sap cavity (2) is 15 ° ± 5 °, and the lower angle (B) of upper tank sap cavity (2) is 20 ° ± 5 °.
2. a kind of U-shaped upper tank sap cavity plunger pump valve box structure as claimed in claim 1, it is characterized in that: described upper tank sap cavity (2) suction port transition arc (D) radius is 8mm～20mm.
3. a kind of U-shaped upper tank sap cavity plunger pump valve box structure as claimed in claim 2, it is characterized in that: described upper tank sap cavity (2) angle transition arc (C) radius is 8mm～40mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220725981 CN202991451U (en) | 2012-12-25 | 2012-12-25 | U-shaped water-feeding chamber liquid cavity plunger pump valve box structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220725981 CN202991451U (en) | 2012-12-25 | 2012-12-25 | U-shaped water-feeding chamber liquid cavity plunger pump valve box structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202991451U true CN202991451U (en) | 2013-06-12 |
Family
ID=48562637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220725981 Expired - Lifetime CN202991451U (en) | 2012-12-25 | 2012-12-25 | U-shaped water-feeding chamber liquid cavity plunger pump valve box structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202991451U (en) |
-
2012
- 2012-12-25 CN CN 201220725981 patent/CN202991451U/en not_active Expired - Lifetime
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130612 |