CN216111225U - Drainage structure and plunger pump hydraulic end - Google Patents
Drainage structure and plunger pump hydraulic end Download PDFInfo
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- CN216111225U CN216111225U CN202122543597.2U CN202122543597U CN216111225U CN 216111225 U CN216111225 U CN 216111225U CN 202122543597 U CN202122543597 U CN 202122543597U CN 216111225 U CN216111225 U CN 216111225U
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Abstract
The application relates to a drainage structures and plunger pump hydraulic end, drainage structures includes: a valve box; the pressure cap is arranged on the valve box and provided with a through hole, and the through hole penetrates through the pressure cap; the pressing cover is arranged on the valve box and is attached to the pressing cap; drainage ditches are arranged between the pressing cap and the pressing cover, a plurality of drainage ditches are arranged, and the drainage ditches are communicated with the through holes of the pressing cap; the valve box is provided with the discharge orifice, the escape canal with the discharge orifice intercommunication, the discharge orifice runs through the lateral wall of valve box. When raining, rainwater enters from the through hole of the pressing cap, rainwater can be drained to the drainage hole through the drainage ditch communicated with the through hole, then the rainwater is drained out of the valve box through the drainage hole, and the probability that the valve box, the pressing cap and the pressing cover at the hydraulic end of the plunger pump rust is reduced.
Description
Technical Field
The application relates to the field of plunger pumps, in particular to a drainage structure and a hydraulic end of a plunger pump.
Background
The hydraulic fracturing construction gradually becomes a main production increasing measure of an oil field, fracturing fluid or sand carrying fluid is pumped to the bottom of a well under the action of high pressure, fracturing operation is realized, and therefore the oil gas yield is increased. The key component of the construction mode is a plunger pump for generating high pressure, and the plunger pump mainly comprises a power end and a hydraulic end. Along with the change of the global energy supply structure, unconventional energy such as shale gas and compact oil gradually plays more and more important roles, so that higher requirements are put forward for the fracturing construction mode. With the extensive exploitation of unconventional energy sources, fracturing operations are at higher pressures and longer operating times, which can accelerate the damage of plunger pumps, especially valve boxes as core parts of the hydraulic end, and fatigue failure and wear occur under high pressure.
The pressure cap of hydraulic end sets up the through-hole in, has in southwest region, because the rainwater is more, the hydraulic end is in the use, and the rainwater can follow the through-hole and get into in gland and the gap of pressure cap, can lead to many places such as the screw thread of pressure cap, pressure lid upper surface, gland and the sealed face of valve box to soak in the rainwater for a long time and rust. The accumulated water and the rust can cause the difficulty in disassembly during maintenance, and the accumulated water is easy to splash to eyes or other parts of maintenance personnel during disassembly, thereby generating potential safety hazards.
SUMMERY OF THE UTILITY MODEL
An object of this application is to provide a drainage structures and plunger pump hydraulic end, this drainage structures can reduce the rusty probability of plunger pump hydraulic end.
Thus, the present application provides a drainage structure comprising: a valve box; the pressure cap is arranged on the valve box and provided with a through hole, and the through hole penetrates through the pressure cap; the pressing cover is arranged on the valve box and is attached to the pressing cap; drainage ditches are arranged between the pressing cap and the pressing cover, a plurality of drainage ditches are arranged, and the drainage ditches are communicated with the through holes of the pressing cap; the valve box is provided with the discharge orifice, the escape canal with the discharge orifice intercommunication, the discharge orifice runs through the lateral wall of valve box.
Through the technical scheme, be provided with many escape canals between pressure cap and the gland, when raining, the rainwater gets into from the through-hole of pressure cap, at this moment, rainwater accessible and the escape canal of through-hole intercommunication drain the rainwater to earial drainage hole department, then discharge the valve box with the rainwater through earial drainage hole, the valve box has been reduced, the pressure cap, the rusty probability of gland, reduce the probability that gland and valve box contact surface become coarse because of rusty, thereby the later stage change pressure cap has been improved, the convenience of gland, and at the in-process of dismantling pressure cap or gland, the rainwater has flowed out from earial drainage hole, the gland has been avoided, the in-process of gland at the dismantlement, the rainwater spatters and maintains personnel's eye or other positions, the operational environment when the operation has been improved.
In a possible embodiment, the drainage gutter opens into the pressure cap, the drainage gutter opening towards the side of the pressure cap.
Through above-mentioned technical scheme, set up in the one end of the escape canal of pressing the cap and the through-hole intercommunication of pressing the cap to with rainwater discharge valve case.
In a possible embodiment, the gland orientation one side of pressing the cap is provided with the connecting hole, the connecting hole with press the cap through-hole intercommunication and coaxial setting, the escape canal is seted up in the gland, the opening orientation in escape canal press the cap, the escape canal with the connecting hole intercommunication.
Through above-mentioned technical scheme, set up in one side and the connecting hole intercommunication in the escape canal of gland, the connecting hole with press the through-hole intercommunication of cap to during the rainwater flowed the connecting hole from the through-hole, then flowed the escape canal in the connecting hole, the rainwater of escape canal passes through the drain hole and discharges at last, thereby with rainwater discharge valve case.
In a possible implementation manner, a first drainage groove is formed in one side, facing the gland, of the pressing cap, a second drainage groove is formed in one side, facing the pressing cap, of the pressing cap, the first drainage groove and the second drainage groove are provided in a plurality of same numbers, the first drainage groove and the second drainage groove are arranged in opposite directions and communicated with each other, and the first drainage groove and the second drainage groove are combined to form a drainage ditch.
Through above-mentioned technical scheme, first water drainage tank is located respectively with second water drainage tank and presses cap, gland, and first water drainage tank folds with second water drainage tank and forms the escape canal, has increased the drainage volume in escape canal to the speed of this application drainage has been improved.
In one possible embodiment, the end of the drain opening facing the drain is higher than or equal to the other end of the drain opening.
Through above-mentioned technical scheme, but the discharge orifice level sets up, and the rainwater of being convenient for smoothly flows, and the discharge orifice is higher than the other end of discharge orifice towards the one end of escape canal to make the discharge orifice slope set up, improved the speed that the rainwater flows.
In one possible embodiment, a plurality of the drainage ditches are uniformly arranged.
Through above-mentioned technical scheme, the even setting of a plurality of escape canals makes the drainage rate of a plurality of escape canals the same.
In a possible embodiment, four drainage ditches are provided, and two adjacent drainage ditches are perpendicular to each other.
Through above-mentioned technical scheme, four escape canals mutually perpendicular to four escape canals evenly set up.
In one possible embodiment, the drain at the press cap has an arc-shaped cross section.
Through above-mentioned technical scheme, the cross-section in escape canal is the arc for the escape canal does not have constrictive contained angle, and the clearance of being convenient for reduces impurity and remains in the remaining in escape canal 4, reduces the probability that the escape canal blockked up.
In a possible embodiment, the drainage gutter at the gland has a square cross-section.
Through above-mentioned technical scheme, the cross-section in escape canal is square, has increased the drainage volume in escape canal, improves the speed of drainage.
The hydraulic end of the plunger pump is characterized in that the drainage structure is applied.
Through the technical scheme, the drainage ditch is arranged between the pressing cover and the pressing cap of the hydraulic end of the plunger pump, so that the rusting probability of the valve box, the pressing cap and the pressing cover is reduced, and the disassembly of maintenance personnel is facilitated.
Compared with the prior art, the technical scheme provided by the embodiment of the application has the following advantages:
the drainage structure comprises a valve box, a drainage pipe and a drainage pipe, wherein the valve box is provided with a threaded hole, a sealing hole and an alternating cavity; the pressing cap is positioned in the threaded hole and is in threaded connection with the valve box, and is provided with a through hole which penetrates through the pressing cap; the gland is positioned in the sealing hole, connected with the valve box and attached to the pressing cap; a plurality of drainage ditches are arranged between the pressing cap and the pressing cover and communicated with the through holes of the pressing cap; the valve box is also provided with a drainage hole, the drainage ditch is communicated with the drainage hole, and the drainage hole penetrates through the side wall of the valve box; when raining, the rainwater gets into from the through-hole of pressing the cap, at this moment, rainwater accessible and the escape canal of through-hole intercommunication drain the rainwater to earial drainage hole department, then discharge the rainwater through earial drainage hole and valve box, the valve box has been reduced, press the cap, the rusty probability of gland, reduce gland and valve box contact surface and become coarse because of rustting probability, thereby the convenience of later stage change pressure cap, the gland has been improved, and at the in-process of dismantling pressure cap or gland, the rainwater has flowed out from earial drainage hole, avoided the gland, the in-process of pressure cap dismantling, the rainwater splashes to the eye of maintenance personnel or other positions, operational environment when having improved the operation.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and together with the description, serve to explain the principles of the application.
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.
FIG. 1 is a cross-sectional view of example 1 of the present application;
fig. 2 is a partial sectional view of a valve housing of embodiment 1 of the present application;
fig. 3 is a schematic structural view of a cap in embodiment 1 of the present application;
FIG. 4 is a cross-sectional view of the present application in example 2;
fig. 5 is a schematic structural view of a gland in embodiment 2 of the present application;
FIG. 6 is a cross-sectional view of the present application in example 3;
fig. 7 is a schematic structural view of a cap according to embodiment 3 of the present application;
fig. 8 is a schematic structural view of a gland according to embodiment 3 of the present application.
Description of reference numerals: 1. a valve box; 11. a threaded hole; 12. sealing the hole; 13. an alternating cavity; 14. a vent hole; 2. pressing the cap; 21. a through hole; 3. a gland; 31. connecting holes; 4. a drainage ditch; 41. a first drainage tank; 42. a second water discharge groove.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The present application is described in further detail below with reference to figures 1-8.
Example 1
The embodiment of the application discloses drainage structures, refer to fig. 1, 2, plunger pump hydraulic end includes valve box 1, and valve box 1 sets up screw hole 11, sealed hole 12 and alternating chamber 13, and wherein alternating chamber 13 is used for plunger reciprocating motion, pressurizes liquid. The threaded hole 11 and the sealing hole 12 are coaxially arranged and communicated with each other, and the sealing hole 12 is communicated with the alternating cavity 13. The valve box is characterized by further comprising a pressing cap 2, wherein the pressing cap 2 is cylindrical, an external thread is arranged on the side face of the pressing cap 2, and the pressing cap 2 is located in the threaded hole 11 and is in threaded connection with the valve box 1 through the external thread; be provided with gland 3 in the sealed hole 12, gland 3 passes through the sealing washer and is connected with valve box 1, and gland 3 just keeps away from the one side orientation alternating chamber 13 of pressing cap 2 with pressing the laminating of cap 2. The arrangement of the gland 3 and the gland 2 avoids the liquid in the alternating cavity 13 from leaking from the sealing hole 12 and the threaded hole 11.
Referring to fig. 1 and 3, a through hole 21 is formed in the middle of the pressing cap 2, the through hole 21 penetrates through the pressing cap 2 and is communicated with the outside, and the through hole 21 is a hexagonal through hole, so that a user can install or disassemble the pressing cap 2, and the pressing cap 2 can be replaced conveniently. Connecting hole 31 has been seted up towards the one side of seting up pressure cap 2 to gland 3, and connecting hole 31 does not run through gland 3, and connecting hole 31 and the coaxial setting of through-hole 21 and intercommunication, connecting hole 31 are the screw hole, and convenient to use person installs or dismantles gland 3 with the instrument, is convenient for press the change of cap 2.
Referring to fig. 1 and 3, a drainage ditch 4 is arranged between the pressure cap 2 and the pressure cover 3, and the valve box 1 is further provided with a drainage hole 14, wherein the drainage hole 14 penetrates through the side wall of the valve box 1. One end of the drain 4 communicates with the through hole 21 of the pressure cap 2 and the other end communicates with the drain hole 14.
In order to facilitate the flow of rainwater in the drain holes 14, one end of the drain hole 14 facing the drain 4 is higher than or equal to the other end of the drain hole 14, and in the present embodiment, one end of the drain hole 14 facing the drain 4 is higher than one end of the drain hole 14, so that the flow of rainwater is more rapid.
In order to improve the rainwater at the flow rate of escape canal 4, escape canal 4 is provided with many, and many escape canals 4 are circumference and arrange, and many escape canals 4 evenly set up to make the drainage rate of each escape canal 4 the same. The number of the drainage ditches 4 is four, and two adjacent drainage ditches 4 are perpendicular to each other.
When rain falls, rainwater flows in from the through hole 21 of the pressure cap 2, the drain 4 and the drain hole 14 are arranged, rainwater flowing into the through hole 21 and the sealing hole 12 can be drained to the drain hole 14 through the drain 4, and then the rainwater is drained out of the valve box 1 through the drain hole 14. Thereby reduce the gland 3 of valve box 1, press the soak time of cap 2 in the rainwater, reduce the rusty probability of valve box 1, pressure cap 2, gland 3, reduce the probability that gland 3 and valve box 1 contact surface become coarse to the convenience of later stage change pressure cap 2, gland 3 has been improved. When the cover is disassembled, rainwater flows out from the drainage hole 14, so that rainwater is prevented from splashing to eyes or other parts of maintenance personnel in the process of disassembling the gland 3 and the gland 2, and the working environment during operation is improved.
When the sealing ring between the gland 3 and the valve box 1 is damaged, high-pressure liquid in the valve box 1 can easily flow out from the drainage hole 14 through the drainage ditch 4, so that the staff can observe conveniently, the staff can stop working conveniently in time, and the safety effect of the working is improved.
Referring to fig. 1 and 3, the drainage ditch 4 is opened on the side surface of the pressure cap 2 facing the gland 3, and the drainage ditch 4 is opened toward the gland 3. The cross-section in escape canal 4 is the arc for escape canal 4 does not have constrictive contained angle, thereby is convenient for clear up, reduces impurity and remains remaining in escape canal 4, thereby reduces the probability that escape canal 4 blockked up.
Example 2
The embodiment of the application discloses a drainage structure, refer to fig. 4, 5, with embodiment 1's difference lie in, escape canal 4 sets up in gland 3 towards the side of gland 2, and the opening of escape canal 4 is towards gland 2, and the one end of escape canal 4 is the same with discharge orifice 14, and the other end of escape canal 4 communicates with the connecting hole 31 of gland 3 to communicate with through-hole 21 of gland 2. The cross-section of escape canal 4 is square, compares in the arc, and the square setting of escape canal 4 makes the flow volume of rainwater bigger to the flow velocity of rainwater in escape canal 4 has been improved.
Example 3
The embodiment of the application discloses drainage structures, refer to fig. 6, 7, 8, the difference with embodiment 1 lies in, press cap 2 to have seted up first water drainage tank 41 towards the one side of gland 3, gland 3 has seted up second water drainage tank 42 towards the one side of pressing cap 2, first water drainage tank 41 is provided with a plurality ofly with second water drainage tank 42 and arranges along circumference, a plurality of first water drainage tanks 41 are the same with a plurality of second water drainage tank 42's quantity, first water drainage tank 41 sets up and merges formation escape canal 4 with second water drainage tank 42 in opposite directions. The first drain groove 41 and the second drain groove 42 are provided to increase the flow volume of the drain 4, thereby increasing the drainage rate.
According to an embodiment of the application, the plunger pump hydraulic end comprises the drainage structure described above.
It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above description is merely exemplary of the present application and is presented to enable those skilled in the art to understand and practice the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A drainage structure, comprising:
a valve box (1);
the pressure cap (2) is arranged on the valve box (1), the pressure cap (2) is provided with a through hole (21), and the through hole (21) penetrates through the pressure cap (2);
the pressing cover (3) is arranged on the valve box (1) and is attached to the pressing cap (2);
a plurality of drainage ditches (4) are arranged between the pressing cap (2) and the pressing cover (3), and the drainage ditches (4) are communicated with the through holes (21) of the pressing cap (2);
valve box (1) is provided with drain hole (14), escape canal (4) with drain hole (14) intercommunication, drain hole (14) run through the lateral wall of valve box (1).
2. A drainage structure according to claim 1, wherein the drainage ditch (4) opens to the gland (2), the drainage ditch (4) opening to the side of the gland (3).
3. A drainage structure according to claim 1, wherein a side of the pressing cover (3) facing the pressing cap (2) is provided with a connection hole (31), the connection hole (31) is communicated and coaxially provided with the through hole (21) of the pressing cap (2), the drainage ditch (4) is opened in the pressing cover (3), an opening of the drainage ditch (4) faces the pressing cap (2), and the drainage ditch (4) is communicated with the connection hole (31).
4. The drainage structure according to claim 1, wherein a first drainage groove (41) is formed in one side of the pressing cap (2) facing the pressing cover (3), a second drainage groove (42) is formed in one side of the pressing cap (3) facing the pressing cap (2), a plurality of the first drainage grooves (41) and a plurality of the second drainage grooves (42) are arranged in the same number, the first drainage grooves (41) and the second drainage grooves (42) are arranged in opposite directions and communicated with each other, and the first drainage grooves (41) and the second drainage grooves (42) are combined to form a drainage ditch (4).
5. A drainage structure according to claim 1, wherein one end of the drain hole (14) toward the drain (4) is higher than or equal to the other end of the drain hole (14).
6. A drainage structure according to claim 1, wherein a plurality of the drainage ditches (4) are uniformly arranged.
7. A drainage structure according to claim 6, wherein there are four drainage ditches (4), and adjacent two drainage ditches (4) are perpendicular to each other.
8. A drainage structure according to claim 2, wherein the drainage gutter (4) at the press cap (2) has an arc-shaped cross section.
9. A drainage structure according to claim 3, wherein the drainage gutter (4) at the gland (3) has a square cross-section.
10. A plunger pump fluid end comprising a drainage arrangement as claimed in any of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122543597.2U CN216111225U (en) | 2021-10-21 | 2021-10-21 | Drainage structure and plunger pump hydraulic end |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122543597.2U CN216111225U (en) | 2021-10-21 | 2021-10-21 | Drainage structure and plunger pump hydraulic end |
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| Publication Number | Publication Date |
|---|---|
| CN216111225U true CN216111225U (en) | 2022-03-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122543597.2U Active CN216111225U (en) | 2021-10-21 | 2021-10-21 | Drainage structure and plunger pump hydraulic end |
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| CN (1) | CN216111225U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117052647A (en) * | 2023-10-11 | 2023-11-14 | 巨鹿县信达机械制造有限公司 | Explosion-proof petroleum fracturing plunger pump |
-
2021
- 2021-10-21 CN CN202122543597.2U patent/CN216111225U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117052647A (en) * | 2023-10-11 | 2023-11-14 | 巨鹿县信达机械制造有限公司 | Explosion-proof petroleum fracturing plunger pump |
| CN117052647B (en) * | 2023-10-11 | 2023-12-29 | 巨鹿县信达机械制造有限公司 | Explosion-proof petroleum fracturing plunger pump |
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