CN202991461U - Fluid end assembly of plunger pump - Google Patents
Fluid end assembly of plunger pump Download PDFInfo
- Publication number
- CN202991461U CN202991461U CN 201220725943 CN201220725943U CN202991461U CN 202991461 U CN202991461 U CN 202991461U CN 201220725943 CN201220725943 CN 201220725943 CN 201220725943 U CN201220725943 U CN 201220725943U CN 202991461 U CN202991461 U CN 202991461U
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- plunger
- section
- plunger pump
- packing
- hole
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Abstract
The utility model relates to a fluid end assembly of a plunger pump. The fluid end assembly of the plunger pump comprises a valve housing of the plunger pump. A plunger end chamber, a discharging chamber and a suction chamber are formed in the valve housing of the plunger pump; a plunger, a discharging chamber valve body and a suction chamber valve body are respectively arranged inside the plunger end chamber, the discharging chamber and the suction chamber; and a plunger gasket, a sealing assembly and a plunger copper sleeve are sleeved outside the plunger. The fluid end assembly of the plunger pump is characterized in that a detachable packing box is arranged between an external circumference face of the plunger and a chamber wall of the plunger end chamber; an external circumference face of the packing box is matched with the chamber wall of the plunger chamber in a sealing mode; the sealing assembly and the plunger copper sleeve are arranged inside the packing box; and a plunger pressing cap which is sleeved outside the external diameter of the plunger partially rotates into the packing box to closely abut against the plunger copper sleeve. The fluid end assembly of the plunger pump has the advantages of solving the problem that an easily damaged part is replaced by disassembling the fluid end assembly of the plunger pump in outdoor construction sites, saving the time of disassembling and replacing the easily damaged part and improving working efficiency and benefit.
Description
Technical field
The utility model relates to a kind of for the hydraulic end of plunger pump assembly on the fracturing unit truck of oil, the exploitation of rock gas equal energy source and fracturing work.
Background technique
The hydraulic end of plunger pump assembly is easily worn part indispensable on fracturing unit truck, because it is under the extremely abominable operating condition of ultrahigh pressure, large discharge capacity, high sand ratio, high concentrated acid for a long time, black box in its plunger stomidium (camber sealing, V-seal) often because of be not durable, the problems such as burn into aged deterioration, seal leakage need replacing, and are difficult during replacing.
As shown in Figure 1, the step of traditional hydraulic end of plunger pump assembly dismounting black box is: remove clip 5 screws that connect between plunger 6 and plunger connecting rod 4, tear 12 (three cylinders) or 20 (five cylinders) alloyed steel nuts 13 between power end 1 and plunger pump clack box 2 open, crane hangs lower plunger pump hydraulic end assembly 0, the hydraulic end of plunger pump assembly uses special tool to pull down plunger pressure cap 9 by cylinder, outwards extract successively plunger 6, plunger copper sheathing 11, V-seal 12, camber sealing 14 and plunger packing 15, change corresponding black box.
The step that black box is installed is: the hydraulic end of plunger pump assembly is loaded onto plunger packing 15, camber sealing 14, V-seal 12 and plunger copper sheathing 11 by the diagram direction successively by cylinder, the application of force inwardly pushes away loads onto plunger 6, screw on plunger pressure cap 9, the very tight plunger copper sheathing 11 of pilot plunger pressure cap 9.Crane hangs on 12 (three cylinders) that hydraulic end of plunger pump assembly 0 docks with power end 1 or 20 (five cylinders) alloyed steel pull bars 3 location, tighten 12 (three cylinders) or 20 (five cylinders) alloyed steel nuts 13, to connecting plunger 6 and plunger connecting rod 4, load onto jointing clip 5 screws, complete installation steps.
As mentioned above, when traditional hydraulic end of plunger pump assembly is changed black box at needs, must stop hydraulic end of plunger pump assembly 0 and fracturing unit truck power end 1 connection disassembling are got off, remove plunger pressure cap 9, could take out replacing after extracting plunger 6, reinstall after assembling and recover to have connected later working on power end 1.Because the oil development pressure break is all field work, condition is very arduous, the whole process need of dismounting repeats many alloyed steel pull bars of dismounting and corresponding alloyed steel nut, each minimum needs of disassembling, assembling and replacing black box are about 8 hours, workload is very big, time-consuming effort has again affected working efficiency and benefit greatly.
Summary of the invention
The purpose of this utility model is to provide a kind of hydraulic end of plunger pump assembly that can the quick-replaceable black box.
in order to achieve the above object, the technical solution of the utility model has been to provide a kind of hydraulic end of plunger pump assembly, comprise the plunger pump clack box, be formed with the plunger end cavity in the plunger pump clack box, discharge cavity and suck cavity, plunger, discharge side valve body valve and suction chamber valve body valve lay respectively at the plunger end cavity, discharge cavity and suck in cavity, at the plunger outer diameter cover, plunger packing is arranged, black box and plunger copper sheathing, it is characterized in that: be provided with dismountable packing box between the chamber wall of plunger outer peripheral surface and plunger end cavity, be sealed and matched between the chamber wall of the outer peripheral surface of packing box and plunger end cavity, black box and plunger copper sheathing are positioned at packing box, the plunger pressure cap that is enclosed within plunger outer diameter partly screws in very tight plunger copper sheathing in packing box.
Preferably, for being used for placing the tapering bottom outlet of described packing box, the tapering bottom outlet is divided into inner taper hole, packing_seal hole and attacks female screw thread step hole described plunger end cavity from the inside to the outside at least near the part of power end.
Preferably, the degree of depth I of described tapering bottom outlet is 133.35-146.05mm, footpath, the end E of described tapering bottom outlet is 142.15-173.84mm, the tapering in described inner taper hole is 1: 16-1: 8, the large footpath C in described inner taper hole is 146.05-177.8mm, the total depth H of described packing_seal hole and described screw thread step hole is 95.35-108.05mm, and the internal diameter B in described packing_seal hole is 146.05-184.15mm, and the degree of depth G of described screw thread step hole is 63.5-76.2mm.
preferably, the interior bone of described packing box is divided into the plunger transitional pore from the inside to the outside at least, the female screw thread step hole of plunger seal hole and car, the outer peripheral surface of described packing box is divided into the section of being sealed and matched from the inside to the outside successively at least, external thread section and be positioned at the outer end face section of described plunger pump clack box, the section of being sealed and matched is divided at least from the inside to the outside tapered section and packing and coordinates section, have a circle taper sealing groove on tapered section, the sealing of packing box O type is located in the taper sealing groove, fit tightly at end face section and described plunger pump clack box on the sidewall of a side and have a circle end face groove, the plunger end-face seal ring is located in end face groove.
Preferably, the total length 1 of described packing box is 150-165mm; The latus rectum f of described plunger transitional pore is 76-134mm, and the overall length w of described plunger seal hole and described interior threaded hole is 127-146.05mm, and the length v of described interior threaded hole is 45-63.5mm, and the diameter c in described plunger seal hole is 101.6-152.4mm; The length n of the described section of being sealed and matched is 70-76mm, and the total length m of described external thread section and the described section of being sealed and matched is 130-135mm, and the external diameter a of described end face section is 210-230mm; The path h of described tapered section is 147.793-175.55mm, the large footpath i of described tapered section is 152.525-177.925mm, the length o of described tapered section is 25.4-40mm, and the tapering t of described tapered section is 1: 16-1: 8, and it is 158.75-184.15mm that described packing coordinates the external diameter j of section; The width p of described taper sealing groove is 4-9mm, and between described taper sealing groove and described tapered section end face is 6-20mm apart from q, and footpath, the end g of described taper sealing groove is 140-168mm; The degree of depth u of described end face groove is 3～6mm, and the inner diameter d of described end face groove is 198-205mm, and the external diameter e of described end face groove is 210-216mm.
Preferably, between described tapered section and the described packing section of cooperation for to seal by the transition chamfered transition.
Preferably, the oblique angle r on described transition inclined-plane is 30 °-60 °.
Preferably, pass through the guiding surface transition between described plunger seal hole and described interior threaded hole.
Preferably, the angle of deflection s of described guiding surface is 10 °-30 °.
When changing the corresponding black box of the hydraulic end of plunger pump assembly that the utility model provides, do not need whole hydraulic end of plunger pump assembly is disassembled from fracturing unit truck, greatly shortened the time of disassembling, assembling and replacing easily damaged parts.Therefore, the utility model has the advantages that: solved in the open air the job site and need to dismantle the hydraulic end of plunger pump assembly to change the difficult problem of easily damaged parts, the time of having saved the disassembling, assembling and replacing easily damaged parts, improved working efficiency and benefit.
Description of drawings
Fig. 1 is existing hydraulic end of plunger pump assembly and power end connection diagram;
A kind of hydraulic end of plunger pump assembly and power end connection diagram that Fig. 2 provides for the utility model;
Fig. 3 is the local enlarged diagram of Fig. 2;
Fig. 4 is plunger pump clack box schematic diagram;
Fig. 5 is the packing box schematic diagram.
Embodiment
For the utility model is become apparent, hereby with preferred embodiment, and coordinate accompanying drawing to be described in detail below.
as shown in Figures 2 and 3, a kind of hydraulic end of plunger pump assembly that the utility model provides, comprise plunger pump clack box 2, be formed with the plunger end cavity in plunger pump clack box 2, discharge cavity and suck cavity, plunger 6, discharge side valve body valve 7 and suction chamber valve body valve 8 lay respectively at the plunger end cavity, discharge cavity and suck in cavity, at plunger 6 overcoats, plunger packing 15 is arranged, black box and plunger copper sheathing 11, be provided with dismountable packing box 17 between the chamber wall of plunger 6 outer peripheral surfaces and plunger end cavity, be sealed and matched between the chamber wall of the outer peripheral surface of packing box 17 and plunger end cavity, black box and plunger copper sheathing 11 are positioned at packing box 17, be enclosed within outer plunger pressure cap 9 parts of plunger 6 and screw in very tight plunger copper sheathing 11 in packing box 17.Black box generally includes V-shaped seal ring 12 and camber seal ring 14, and plunger copper sheathing 11 adopts plunger oil sealing 10 usually.
In conjunction with Fig. 4, the plunger latus rectum F of plunger end cavity is 105-133.35mm, its part near power end 1 is the tapering bottom outlet for placement packing box 17, the degree of depth I of tapering bottom outlet is 133.35-146.05mm, and footpath, the end E of tapering bottom outlet is that 142.15-173.84mm. tapering bottom outlet is divided into inner taper hole D, packing_seal hole and the female screw thread step hole of car A from the inside to the outside at least.The tapering of inner taper hole D is 1: 16-1: 8, the large footpath C of inner taper hole D is 146.05-177.8mm, the total depth H of packing_seal hole and screw thread step hole A is 95.35-108.05mm, and the internal diameter B in packing_seal hole is 146.05-184.15mm, and the degree of depth G of screw thread step hole A is 63.5-76.2mm.The oilhole that plunger pump clack box 2 tilts is connected with the tapering bottom outlet, and the position angle J of oilhole is 5 °-15 °.
In conjunction with Fig. 5, the total length l of packing box 17 is 150-165mm.The interior bone of packing box 17 is divided at least from the inside to the outside plunger transitional pore, plunger seal hole and attacks female interior threaded hole b, and between plunger seal hole and interior threaded hole b, by the guiding surface transition, the angle of deflection s of guiding surface is 10 °-30 °.The latus rectum f of plunger transitional pore is 76-134mm, and the overall length w of plunger seal hole and interior threaded hole b is 127-146.05mm, and the length v of interior threaded hole b is 45-63.5mm, and the diameter c in plunger seal hole is 101.6-152.4mm.The outer peripheral surface of packing box 17 is divided at least successively from the inside to the outside the section of being sealed and matched, external thread section k and is positioned at the outer end face section of plunger pump clack box 2.The length n of the section of being sealed and matched is 70-76mm, and external thread section is 130-135mm with the total length m of the section of being sealed and matched, and the external diameter a of end face section is 210-230mm.The section of being sealed and matched is divided at least from the inside to the outside tapered section and packing and coordinates section, is to seal by the transition chamfered transition between tapered section and the packing section of coordinating, and the oblique angle r on transition inclined-plane is 30 °-60 °.The path h of tapered section is 147.793-175.55mm, and the large footpath i of tapered section is 152.525-177.925mm, and the length o of tapered section is 25.4-40mm, and the tapering t of tapered section is 1: 16-1: 8.Have a circle taper sealing groove on tapered section, packing box O type sealing 16 is located in the taper sealing groove.The width p of taper sealing groove is 4-9mm, and between taper sealing groove and tapered section end face is 6-20mm apart from q, and footpath, the end g of taper sealing groove is 140-168mm.Fit tightly at end face section and plunger pump clack box 2 on the sidewall of a side and have a circle end face groove, plunger end-face seal ring 19 is located in end face groove.The degree of depth u of end face groove is 3～6mm, and the inner diameter d of end face groove is 198-205mm, and the external diameter e of end face groove is 210-216mm.
In conjunction with Fig. 2, the disassembling, assembling and replacing step of the hydraulic end of plunger pump assembly that the utility model provides is as follows:
the plunger connecting rod 4 of power end stretches out full stroke position, remove clip 5 screws that connect between plunger 6 and plunger connecting rod 4, power end plunger connecting rod 4 full stroke position of retracting again, leave enough space replacings before making the back-out packing box, use special tool to pull down plunger pressure cap 9, revolve and take out packing box 17, and company's plunger oil sealing 10, plunger copper sheathing 11, V-seal 12, camber sealing 14, packing box O type sealing 16, plunger copper sheathing O type circle 18 and plunger end face seal 19 are taken out of together, plunger 6 is stayed in the clack box endoporus, after changing the Sealing of corresponding damage in packing box 17, load onto plunger end-face seal ring 19 at packing box 17 successively, plunger copper sheathing O type circle 18, packing box O RunddichtringO 16, camber seal ring 14, V-shaped seal ring 12, plunger copper sheathing 11 and plunger oil sealing 10, and dress screws on plunger pressure cap 9, do not need to screw, then righting plunger 6 is adjusted in correct position, precession has installed the packing box 17 of black box gently, plunger pressure cap 9 is screwed put in place, docking plunger 6 and plunger connecting rod 4, load onto jointing clip 5 screws, complete the disassembling, assembling and replacing step.
Table 1 and table 2 provide the size of plunger pump clack box 2 relevant portions and packing box 17 with regard to the hydraulic end of plunger pump assembly of different size.
Table 1
Table 2
Claims (9)
1. hydraulic end of plunger pump assembly, comprise plunger pump clack box (2), be formed with the plunger end cavity in plunger pump clack box (2), discharge cavity and suck cavity, plunger (6), discharge side valve body valve (7) and suction chamber valve body valve (8) lay respectively at the plunger end cavity, discharge cavity and suck in cavity, at plunger (6) overcoat, plunger packing (15) is arranged, black box and plunger copper sheathing (11), it is characterized in that: be provided with dismountable packing box (17) between the chamber wall of plunger (6) outer peripheral surface and plunger end cavity, be sealed and matched between the outer peripheral surface of packing box (17) and the chamber wall of plunger end cavity, black box and plunger copper sheathing (11) are positioned at packing box (17), be enclosed within outer plunger pressure cap (9) part of plunger (6) and screw in very tight plunger copper sheathing (11) in packing box (17).
2. a kind of hydraulic end of plunger pump assembly as claimed in claim 1, it is characterized in that: described plunger end cavity is the tapering bottom outlet that is used for placing described packing box (17) near the part of power end (1), and the tapering bottom outlet is divided into the female screw thread step hole of inner taper hole (D), packing_seal hole and car (A) from the inside to the outside at least.
3. a kind of hydraulic end of plunger pump assembly as claimed in claim 2, it is characterized in that: the degree of depth I of described tapering bottom outlet is 133.35-146.05mm, footpath, the end E of described tapering bottom outlet is 142.15-173.84mm, the tapering in described inner taper hole (D) is 1: 16-1: 8, the large footpath C in described inner taper hole (D) is 146.05-177.8mm, the total depth H of described packing_seal hole and described screw thread step hole (A) is 95.35-108.05mm, the internal diameter B in described packing_seal hole is 146.05-184.15mm, the degree of depth G of described screw thread step hole (A) is 63.5-76.2mm.
4. a kind of hydraulic end of plunger pump assembly as claimed in claim 1, it is characterized in that: the interior bone of described packing box (17) is divided into the plunger transitional pore from the inside to the outside at least, plunger seal hole and attack female interior threaded hole (b), the outer peripheral surface of described packing box (17) is divided into the section of being sealed and matched from the inside to the outside successively at least, external thread section (k) and be positioned at the outer end face section of described plunger pump clack box (2), the section of being sealed and matched is divided at least from the inside to the outside tapered section and packing and coordinates section, have a circle taper sealing groove on tapered section, packing box O type sealing (16) is located in the taper sealing groove, fit tightly at end face section and described plunger pump clack box (2) on the sidewall of a side and have a circle end face groove, plunger end-face seal ring (19) is located in end face groove.
5. a kind of hydraulic end of plunger pump assembly as claimed in claim 4 is characterized in that: the total length 1 of described packing box (17) is 150-165mm; The latus rectum f of described plunger transitional pore is 76-134mm, the overall length w of described plunger seal hole and described interior threaded hole (b) is 127-146.05mm, the length v of described interior threaded hole (b) is 45-63.5mm, and the diameter c in described plunger seal hole is 101.6-152.4mm; The length n of the described section of being sealed and matched is 70-76mm, and the total length m of described external thread section and the described section of being sealed and matched is 130-135mm, and the external diameter a of described end face section is 210-230mm; The path h of described tapered section is 147.793-175.55mm, and the large footpath i of described tapered section is 152.525-177.925mm, and the length o of described tapered section is 25.4-40mm, and the tapering t of described tapered section is 1: 16-1: 8; The width p of described taper sealing groove is 4-9mm, and between described taper sealing groove and described tapered section end face is 6-20mm apart from q, and footpath, the end g of described taper sealing groove is 140-168mm, and it is 158.75-184.15mm that described packing coordinates the external diameter j of section; The degree of depth u of described end face groove is 3～6mm, and the inner diameter d of described end face groove is 198-205mm, and the external diameter e of described end face groove is 210-216mm.
6. a kind of hydraulic end of plunger pump assembly as claimed in claim 4 is characterized in that: between described tapered section and the described packing section of cooperation for to seal by the transition chamfered transition.
7. a kind of hydraulic end of plunger pump assembly as claimed in claim 6 is characterized in that: the oblique angle r on described transition inclined-plane is 30 °-60 °.
8. a kind of hydraulic end of plunger pump assembly as claimed in claim 4, is characterized in that: pass through the guiding surface transition between described plunger seal hole and described interior threaded hole (b).
9. a kind of hydraulic end of plunger pump assembly as claimed in claim 8, it is characterized in that: the angle of deflection s of described guiding surface is 10 °-30 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220725943 CN202991461U (en) | 2012-12-25 | 2012-12-25 | Fluid end assembly of plunger pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220725943 CN202991461U (en) | 2012-12-25 | 2012-12-25 | Fluid end assembly of plunger pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202991461U true CN202991461U (en) | 2013-06-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220725943 Expired - Lifetime CN202991461U (en) | 2012-12-25 | 2012-12-25 | Fluid end assembly of plunger pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202991461U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103835937A (en) * | 2014-03-18 | 2014-06-04 | 四机赛瓦石油钻采设备有限公司 | Modularized plunger pump fluid end |
| CN104500359A (en) * | 2014-12-25 | 2015-04-08 | 上海清河机械有限公司 | Hydraulic end assembly of five-cylinder plunger pump |
| CN104747431A (en) * | 2015-03-09 | 2015-07-01 | 东营睿智友亮石油设备有限公司 | Method for prolonging service life of plunger of plunger pump |
| CN104895760A (en) * | 2015-05-25 | 2015-09-09 | 南通广兴气动设备有限公司 | Second-stage pressure device |
| 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 |
| CN109296512A (en) * | 2018-12-05 | 2019-02-01 | 河南伯淼水处理有限公司 | With the fluid end structure of labyrinth seal in a kind of high pressure reciprocating pump |
| CN114576156A (en) * | 2020-11-30 | 2022-06-03 | 中国石油天然气股份有限公司 | Sealing device of plunger pump |
| WO2023141875A1 (en) * | 2022-01-27 | 2023-08-03 | 烟台杰瑞石油装备技术有限公司 | Fluid end of plunger pump, plunger pump, and oil and gas field fracturing apparatus having same |
-
2012
- 2012-12-25 CN CN 201220725943 patent/CN202991461U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103835937A (en) * | 2014-03-18 | 2014-06-04 | 四机赛瓦石油钻采设备有限公司 | Modularized plunger pump fluid end |
| CN104500359A (en) * | 2014-12-25 | 2015-04-08 | 上海清河机械有限公司 | Hydraulic end assembly of five-cylinder plunger pump |
| CN104500359B (en) * | 2014-12-25 | 2017-01-11 | 上海清河机械有限公司 | Hydraulic end assembly of five-cylinder plunger pump |
| CN104747431A (en) * | 2015-03-09 | 2015-07-01 | 东营睿智友亮石油设备有限公司 | Method for prolonging service life of plunger of plunger pump |
| CN104895760A (en) * | 2015-05-25 | 2015-09-09 | 南通广兴气动设备有限公司 | Second-stage pressure device |
| 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 |
| CN109296512A (en) * | 2018-12-05 | 2019-02-01 | 河南伯淼水处理有限公司 | With the fluid end structure of labyrinth seal in a kind of high pressure reciprocating pump |
| CN114576156A (en) * | 2020-11-30 | 2022-06-03 | 中国石油天然气股份有限公司 | Sealing device of plunger pump |
| WO2023141875A1 (en) * | 2022-01-27 | 2023-08-03 | 烟台杰瑞石油装备技术有限公司 | Fluid end of plunger pump, plunger pump, and oil and gas field fracturing apparatus having same |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130612 |
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| CX01 | Expiry of patent term |