CN203023038U - Plunger pump valve box with pear-shaped suction-end liquid cavity - Google Patents
Plunger pump valve box with pear-shaped suction-end liquid cavity Download PDFInfo
- Publication number
- CN203023038U CN203023038U CN 201220743198 CN201220743198U CN203023038U CN 203023038 U CN203023038 U CN 203023038U CN 201220743198 CN201220743198 CN 201220743198 CN 201220743198 U CN201220743198 U CN 201220743198U CN 203023038 U CN203023038 U CN 203023038U
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- sap cavity
- suction side
- pear
- side sap
- pear type
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Abstract
The utility model provides a plunger pump valve box with a pear-shaped suction-end liquid cavity. The plunger pump valve box with a pear-shaped suction-end liquid cavity comprises a plunger end, wherein a suction gland end is coaxially arranged at the left side of the plunger end; an exhaust end is vertically arranged above the junction of the plunger end and the suction gland end; the pear-shaped suction-end liquid cavity is coaxially formed below the exhaust end; the plunger end, the suction gland end, the exhaust end and the pear-shaped suction-end liquid cavity form a cross structure; and the transition arc radius of the included angle of the pear-shaped suction-end liquid cavity is 8-35 mm, and the transition arc radius of the suction port of the pear-shaped suction-end liquid cavity is 5-25 mm. With the adoption of the plunger pump valve box with the pear-shaped suction-end liquid cavity provided by the utility model, the shortages of the prior art are overcome, the structure is simple and reasonable, the wear degree of the cavity wall is reduced, and the wear resistance of a product is improved.
Description
Technical field
The utility model relates to a kind of pear type suction side sap cavity plunger pump clack box, 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 case adopts the cross type structure mostly, the central axis of plunger end 2 and suction gland end 1 is on same straight line a, and the central axis of traditional suction side sap cavity 3 and exhaust end 4 is on same straight line b, and straight line a and straight line b intersect vertically.Tradition suction side sap cavity 3 is the step cylinder type, 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, suction side 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 clack box that suction side 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 pear type suction side sap cavity plunger pump clack box, comprise plunger end, suction gland end is same to be located on the left of plunger end, exhaust end is vertical at plunger end and sucks top, gland end joint, it is characterized in that: described exhaust end below is coaxial is provided with pear type suction side sap cavity, described plunger end, sucks gland end, exhaust end and pear type suction side sap cavity forms the cross type structure; The angle transition arc radius of pear type suction side sap cavity is 8mm～35mm, and the suction port transition arc radius of pear type suction side sap cavity is 5mm～25mm.
Preferably, the lower angle circular arc point of contact diameter of described pear type suction side sap cavity is 140mm～190mm, the suction port angle circular arc point of contact diameter of described pear type suction side sap cavity is 125mm～175mm, the upper angle intersection point diameter of described pear type suction side sap cavity is 130mm～175mm, and the upper angle circular arc point of contact diameter of described pear type suction side sap cavity is 140mm～185mm.
Preferably, the spring bracket angle of described pear type suction side sap cavity is 15 ° ± 5 °, and on the suction chamber of described pear type suction side sap cavity, angle is 30 ° ± 5 °, and under the suction chamber of described pear type suction side sap cavity, angle is 14 ° ± 5 °.
Preferably, the valve seat hole basal plane height of described pear type suction side sap cavity is 50mm～76.2mm.
The utility model provides a kind of pear type suction side sap cavity plunger pump clack box is designed to pear type structure with the suction side sap cavity, elimination forms resistance because high-pressure liquid produces eddy current by sap cavity, make high-pressure liquid smooth, reduce the degree of wear of chamber wall, thereby improve antifatigue and the wear resistance of product.
The utility model provides a kind of pear type suction side sap cavity plunger pump clack box 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;
Fig. 2 provides for the utility model a kind of pear type suction side sap cavity plunger pump clack box schematic diagram;
Fig. 3 is M-M sectional view in Fig. 2;
Description of reference numerals
1-sucks the gland end; The 2-plunger end; 3-tradition suction side sap cavity; The 4-exhaust end; 5-pear type suction side sap cavity; A-sap cavity angle transition arc; B-suction port transition arc; Angle circular arc point of contact diameter under C-; D-suction port angle circular arc point of contact diameter; The upper angle intersection point of E-diameter; The upper angle circular arc of F-point of contact diameter; G-spring bracket angle; Angle on the H-suction chamber; Angle under the I-suction chamber; J-valve seat hole basal plane height.
Embodiment
For the utility model is become apparent, hereby with a preferred embodiment, and coordinate accompanying drawing to be described in detail below.
Fig. 2 provides for the utility model a kind of pear type suction side sap cavity plunger pump clack box schematic diagram, described a kind of pear type suction side sap cavity plunger pump clack box comprises plunger end 2, suction gland end 1 is coaxial to be positioned at plunger end 2 left sides and to be connected with plunger end 2, exhaust end 4 vertically is positioned at plunger end 2 and suction gland end 1 top, joint, exhaust end 4 passes through mutually and is connected with plunger end 2, suction gland end 1, pear type suction side sap cavity 5 is coaxial is positioned at exhaust end 4 belows, plunger end 2, sucks gland end 1, exhaust end 4 and pear type suction side sap cavity 5 forms the cross type structures.
The angle transition arc A radius of pear type suction side sap cavity 5 is 8mm～35mm, and suction port transition arc B radius is 5mm～25mm; In conjunction with Fig. 3, lower angle circular arc point of contact diameter C is 140mm～190mm, and suction port angle circular arc point of contact diameter D is 125mm～175mm, and upper angle intersection point diameter E is 130mm～175mm, and upper angle circular arc point of contact diameter F is 140mm～185mm; Spring bracket angle G is 15 ° ± 5 °, and on suction chamber, angle H is 30 ° ± 5 °, and under suction chamber, angle I is 14 ° ± 5 °, and valve seat hole basal plane height J is 50mm～76.2mm.
The utility model provides a kind of pear type suction side sap cavity plunger pump clack box has changed traditional step cylinder type suction side sap cavity structure, the suction side sap cavity is designed to pear type 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 (4)
1. pear type suction side sap cavity plunger pump clack box, comprise plunger end (2), suction gland end (1) is same to be located on the left of plunger end (2), exhaust end (4) is vertical at plunger end (2) and sucks top, gland end (1) joint, it is characterized in that: the coaxial pear type suction side sap cavity (5) that is provided with in described exhaust end (4) below, described plunger end (2), suction gland end (1), exhaust end (4) and pear type suction side sap cavity (5) form the cross type structure; Angle transition arc (A) radius of pear type suction side sap cavity (5) is 8mm～35mm, and suction port transition arc (B) radius of pear type suction side sap cavity (5) is 5mm～25mm.
2. a kind of pear type as claimed in claim 1 suction side sap cavity plunger pump clack box, it is characterized in that: the lower angle circular arc point of contact diameter (C) of described pear type suction side sap cavity (5) is 140mm～190mm, the suction port angle circular arc point of contact diameter (D) of described pear type suction side sap cavity (5) is 125mm～175mm, the upper angle intersection point diameter (E) of described pear type suction side sap cavity (5) is 130mm～175mm, the upper angle circular arc point of contact diameter (F) of described pear type suction side sap cavity (5) is 140mm～185mm.
3. a kind of pear type as claimed in claim 1 suction side sap cavity plunger pump clack box, it is characterized in that: the spring bracket angle (G) of described pear type suction side sap cavity (5) is 15 ° ± 5 °, on the suction chamber of described pear type suction side sap cavity (5), angle (H) is 30 ° ± 5 °, and under the suction chamber of described pear type suction side sap cavity (5), angle (I) is 14 ° ± 5 °.
4. as described in any one in claim 1～3 a kind of pear type suction side sap cavity plunger pump clack box, it is characterized in that: the valve seat hole basal plane height (J) of described pear type suction side sap cavity (5) is 50mm～76.2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220743198 CN203023038U (en) | 2012-12-28 | 2012-12-28 | Plunger pump valve box with pear-shaped suction-end liquid cavity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220743198 CN203023038U (en) | 2012-12-28 | 2012-12-28 | Plunger pump valve box with pear-shaped suction-end liquid cavity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203023038U true CN203023038U (en) | 2013-06-26 |
Family
ID=48647027
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220743198 Expired - Lifetime CN203023038U (en) | 2012-12-28 | 2012-12-28 | Plunger pump valve box with pear-shaped suction-end liquid cavity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203023038U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016155590A1 (en) * | 2015-04-03 | 2016-10-06 | 濮阳市中信激扬机械制造有限公司 | Plunger pump valve box assembly |
-
2012
- 2012-12-28 CN CN 201220743198 patent/CN203023038U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016155590A1 (en) * | 2015-04-03 | 2016-10-06 | 濮阳市中信激扬机械制造有限公司 | Plunger pump valve box assembly |
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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 |
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| CX01 | Expiry of patent term |