CN203796550U - Plunger pump hydraulic end with non-full-subsumption type hydraulic cylinder body structure - Google Patents
Plunger pump hydraulic end with non-full-subsumption type hydraulic cylinder body structure Download PDFInfo
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- CN203796550U CN203796550U CN201420244291.4U CN201420244291U CN203796550U CN 203796550 U CN203796550 U CN 203796550U CN 201420244291 U CN201420244291 U CN 201420244291U CN 203796550 U CN203796550 U CN 203796550U
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- inlet valve
- installation cavity
- cylinder body
- valve assembly
- outlet
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- 238000009434 installation Methods 0.000 claims abstract description 44
- 125000006850 spacer group Chemical group 0.000 claims abstract description 14
- 238000012423 maintenance Methods 0.000 claims abstract description 11
- 238000012856 packing Methods 0.000 claims abstract description 8
- 239000012530 fluid Substances 0.000 claims description 24
- 244000273618 Sphenoclea zeylanica Species 0.000 claims description 3
- 238000003754 machining Methods 0.000 abstract 3
- 238000000034 method Methods 0.000 description 6
- 239000007788 liquid Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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- Details Of Reciprocating Pumps (AREA)
Abstract
Disclosed is a plunger pump hydraulic end with a non-full-subsumption type hydraulic cylinder body structure. The plunger pump hydraulic end is mainly used for solving the problems that because an existing plunger pump hydraulic end is provided with a full-subsumption type hydraulic cylinder body structure, the hole depth is over large, and machining and maintenance are difficult. The plunger pump hydraulic end is characterized in that two chambers communicated with each other are formed in a hydraulic cylinder body, a right-end outlet of the inlet valve installing chamber is communicated with the plunger installing chamber, a packing box assembly is fixed in the plunger installing chamber, an inlet valve assembly is located in the inlet valve installing chamber, a spacer bush is fixed in the inlet valve installing chamber, a valve suction port of an outlet valve assembly is communicated with an upper flow guide channel and a lower flow guide channel on the spacer bush, a valve rod of the outlet valve assembly is a hollow rod, a plurality of flow guide holes communicated with a cavity in the valve rod is formed in the valve rod, and the bottom end of an outlet pipe is communicated with a through hole. According to the improved plunger pump hydraulic end, the hole depth of a main hole needing to be machined is reduced, the size of the whole hydraulic end is reduced at the same time, machining difficulty is reduced, the machining cost is substantially reduced, and difficulty of installation and maintenance is reduced.
Description
Technical field
The utility model relates to a kind of plunger pump internal structure being applied in oilfield injection field.
Background technique
What oilfield injection pump major part adopted at present is cylinder-and-piston type reciprocating pump, after the application of long period, find, there is following problem in this reciprocating pump: because outlet valve, inlet valve are installed in fluid power cylinder interior, outlet line, discharge opeing runner technique are stifled etc. also all in fluid power cylinder interior, cause the main aperture degree of depth of fluid power cylinder body of needs processing excessive, thus brought the increase of difficulty of processing and the volume of equipment excessive.Because difficulty of processing is large, increased on the one hand the manufacture cost of equipment, meanwhile, brought great difficulty also to the maintenance of equipment.
Summary of the invention
In order to solve the technical problem of mentioning in background technique, the utility model provides a kind of hydraulic end of plunger pump that adopts non-all-enclosuring type hydraulic cylinder body structure, the main aperture degree of depth that after improving, fluid power cylinder body need to be processed reduces greatly, simultaneously the volume and weight of equipment all reduces, and is convenient to that workman keeps in repair and normal running.
The technical solution of the utility model is: this kind adopts the hydraulic end of plunger pump of non-all-enclosuring type hydraulic cylinder body structure, comprise fluid power cylinder body, outlet valve assembly, inlet valve assembly, spacer and the packing box assembly that is fixed with plunger, on the basis of these prior aries, the improvements that this programme is made are:
Fluid power cylinder body is rectangle, comprises at least three independent working cells, has two logical cylindrical chamber connected with each other in the inside of each working cell, is respectively inlet valve installation cavity and plunger installation cavity; The lower ending opening of inlet valve installation cavity is liquid-entering hole, and the left end opening of inlet valve installation cavity is plunger front end installation and maintenance holes, and the right-end openings of inlet valve installation cavity is connected with plunger installation cavity, and packing box assembly is fixed in plunger installation cavity;
Inlet valve assembly is positioned at inlet valve installation cavity, coincide corresponding with liquid-entering hole of valve inhalation port of inlet valve assembly; The spacer with upper and lower guide channel is threaded connection and is fixed in inlet valve installation cavity, be positioned at the top of inlet valve assembly, the bottom of outlet valve assembly is fixed in inlet valve installation cavity, touches mutually with spacer, and the valve inhalation port of outlet valve assembly is connected with the guide channel up and down on spacer; The valve rod of outlet valve assembly is hollow stem, and the bottom of valve rod has some pod apertures that are connected with its internal cavities; On the base plate of the valve rod fixing frame of described outlet valve assembly, the position of corresponding valve rod has through hole.
Outlet valve assembly is pressed on fluid power cylinder body by outlet(discharge) flange dish and supporting bolt combination, and the central authorities of outlet(discharge) flange dish are fixedly connected with an outer pipe, and the bottom of outer pipe is connected with the through hole on described valve rod fixing frame base plate.
The utlity model has following beneficial effect: this kind of hydraulic end of plunger pump compared with original hydraulic end of plunger pump, removed the stifled and liquid outlet opening of independent discharge opeing runner, discharge opeing runner technique, only inlet valve assembly is placed in fluid power cylinder body completely simultaneously, and it is external that most outlet valve assembly is placed on to hydraulic cylinder, thus, greatly reduce the main aperture degree of depth that needs the fluid power cylinder body of processing, reduced difficulty of processing and maintenance difficulty.In addition, this programme has changed traditional hydraulic cylinder body structure pattern, also changed the installation relation between fluid end outlet valve and fluid power cylinder body simultaneously, not only make processing method, efficiency be very significantly improved, dwindled the volume of equipment simultaneously, made plunger pump more convenient and quick when installation, maintenance, both saved material, reduced cost, the labor intensity that has alleviated workman, has improved working efficiency.
Accompanying drawing explanation:
Fig. 1 is forward sight structural representation of the present utility model.
Fig. 2 is the plan structure schematic diagram of Fig. 1.
Fig. 3 is the sectional structure schematic diagram of Fig. 1.
Fig. 4 is the sectional structure schematic diagram of the fluid power cylinder body after improvement described in the utility model.
Embodiment:
Below in conjunction with accompanying drawing, the utility model is described in further detail:
By shown in Fig. 1 to Fig. 3, this kind adopts the hydraulic end of plunger pump of non-all-enclosuring type hydraulic cylinder body structure, comprise fluid power cylinder body 3, outlet valve assembly 4, inlet valve assembly 1, spacer 2 and the existing structures such as packing box assembly 8 that are fixed with plunger 13, but on above architecture basics, make improvements part and be:
Fluid power cylinder body 3 is rectangle, comprises at least three independent working cells, has two logical chambers connected with each other in the inside of each working cell, is respectively inlet valve installation cavity 10 and plunger installation cavity 12; The lower ending opening of inlet valve installation cavity 10 is liquid-entering hole 9, and the left end opening of inlet valve installation cavity 10 is plunger front end installation and maintenance hole 11, and the right-end openings of inlet valve installation cavity 10 is connected with plunger installation cavity 12, and packing box assembly 8 is fixed in plunger installation cavity 12.
Inlet valve assembly 1 is positioned at inlet valve installation cavity 10, and the valve inhalation port of inlet valve assembly 1 is corresponding with liquid-entering hole 9 to coincide; The spacer 2 with upper and lower guide channel is threaded connection and is fixed in inlet valve installation cavity 10, be positioned at the top of inlet valve assembly 1, the bottom of outlet valve assembly 4 is fixed in inlet valve installation cavity 10, touch mutually with spacer 2, the valve inhalation port of outlet valve assembly 4 is connected with the guide channel up and down on spacer 2; The valve rod 14 of outlet valve assembly 4 is hollow stem, and the bottom of valve rod 14 has some pod apertures 16 that are connected with its internal cavities; On the base plate of the valve rod fixing frame 15 of described outlet valve assembly, the position of corresponding valve rod 14 has through hole.
Outlet valve assembly 4 is pressed on fluid power cylinder body 3 by outlet(discharge) flange dish 5 and supporting bolt combination 6, and the central authorities of outlet(discharge) flange dish 5 are fixedly connected with an outer pipe 7, and the bottom of outer pipe 7 is connected with the through hole on described valve rod fixing frame base plate.
Fig. 4 is the sectional structure schematic diagram of fluid power cylinder body.
Utilize the job step of this kind of hydraulic end of plunger pump as follows, when plunger outward moves, plunger installation cavity and the position that be closed corresponding to the inlet valve installation cavity of its connection produce vacuum, the spool of inlet valve assembly moves up under the effect of vacuum, and the liquid outside liquid-entering hole enters into the space at inlet valve installation cavity inner spacing collar place by the space between inlet valve assembly spool and valve seat.When plunger motion moves inward after adjusting direction to limiting position, the space at inlet valve installation cavity inner spacing collar place forms highly pressurised liquid, now, the spool of inlet valve assembly is closed under the acting in conjunction of fluid pressure and spring, and the spool of outlet valve assembly is opened under the effect of fluid pressure simultaneously, highly pressurised liquid enters the pod apertures on valve rod via the gap between outlet valve assembly spool and valve seat, finally flows in outlet line and discharges.
The hydraulic end of plunger pump of traditional employing all-enclosuring type hydraulic cylinder body structure, also be the hexahedron profile of rectangle, but there is liquid-entering hole, suction valve installation place, plunger front end installation and maintenance hole, expulsion valve installation place, discharge opeing runner, outage, outage technique is blocked up and packing box installation place, these structures are all arranged in fluid power cylinder body above, and suction valve and expulsion valve are all arranged in main aperture, cause hole depth too high, as everyone knows, what in the course of working of hydraulic cylinder, processing request was the strictest is exactly the processing of main aperture, the larger difficulty of processing of hole depth is larger, be not easy very much processing and conventional maintenance and repairing.
And this kind of hydraulic end of plunger pump, compare with original hydraulic end of plunger pump, removed the stifled and liquid outlet opening of independent discharge opeing runner, discharge opeing runner technique, discharge opeing runner is directly communicated with in outlet valve assembly, only inlet valve assembly is placed in fluid power cylinder body completely, and it is external that most outlet valve assembly is placed on to hydraulic cylinder, thus simultaneously, greatly reduce the main aperture degree of depth that needs the fluid power cylinder body of processing, reduced difficulty of processing and maintenance difficulty.
In addition, the outlet(discharge) flange of the hydraulic end of plunger pump after this kind of improvement and supporting bolt combination and outlet valve flange are that a set of general, traditional hydraulic end of plunger pump outlet(discharge) flange and supporting bolt combination and outlet valve are a set of respectively with flange.This kind of hydraulic end of plunger pump volume reduces, weight saving, greatly reduce the difficulty that hydraulic end of plunger pump is installed and keeped in repair, reducing due to hydraulic cylinder body structure simultaneously, processing cost significantly reduces, the hydraulic end of plunger pump of this kind of structure has been broken traditional hydraulic cylinder body structure pattern, has stronger practicability.
Claims (1)
1. adopt a hydraulic end of plunger pump for non-all-enclosuring type hydraulic cylinder body structure, comprise fluid power cylinder body (3), outlet valve assembly (4), inlet valve assembly (1), spacer (2) and the packing box assembly (8) that is fixed with plunger (13), it is characterized in that:
Fluid power cylinder body (3) is rectangle, comprises at least three independent working cells, has two logical chambers connected with each other in the inside of each working cell, is respectively inlet valve installation cavity (10) and plunger installation cavity (12); The lower ending opening of inlet valve installation cavity (10) is liquid-entering hole (9), the left end opening of inlet valve installation cavity (10) is plunger front end installation and maintenance hole (11), the right-end openings of inlet valve installation cavity (10) is connected with plunger installation cavity (12), and packing box assembly (8) is fixed in plunger installation cavity (12);
Inlet valve assembly (1) is positioned at inlet valve installation cavity (10), and the valve inhalation port of inlet valve assembly (1) is corresponding with liquid-entering hole (9) to coincide; The spacer (2) with upper and lower guide channel is threaded connection and is fixed in inlet valve installation cavity (10), be positioned at the top of inlet valve assembly (1), the bottom of outlet valve assembly (4) is fixed in inlet valve installation cavity (10), touch mutually with spacer (2), the valve inhalation port of outlet valve assembly (4) is connected with the guide channel up and down on spacer (2); The valve rod (14) of outlet valve assembly (4) is hollow stem, and the bottom of valve rod (14) has some pod apertures that are connected with its internal cavities (16); On the base plate of the valve rod fixing frame (15) of described outlet valve assembly, the position of corresponding valve rod (14) has through hole;
Outlet valve assembly (4) is pressed on fluid power cylinder body (3) by outlet(discharge) flange dish (5) and supporting bolt combination (6), the central authorities of outlet(discharge) flange dish (5) are fixedly connected with an outer pipe (7), and the bottom of outer pipe (7) is connected with the through hole on described valve rod fixing frame base plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420244291.4U CN203796550U (en) | 2014-05-14 | 2014-05-14 | Plunger pump hydraulic end with non-full-subsumption type hydraulic cylinder body structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420244291.4U CN203796550U (en) | 2014-05-14 | 2014-05-14 | Plunger pump hydraulic end with non-full-subsumption type hydraulic cylinder body structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203796550U true CN203796550U (en) | 2014-08-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420244291.4U Expired - Fee Related CN203796550U (en) | 2014-05-14 | 2014-05-14 | Plunger pump hydraulic end with non-full-subsumption type hydraulic cylinder body structure |
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| Country | Link |
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| CN (1) | CN203796550U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104747430A (en) * | 2014-11-13 | 2015-07-01 | 三一重型装备有限公司 | Fluid end and emulsion pump |
| CN109185092A (en) * | 2018-11-09 | 2019-01-11 | 淮安市威力泵业科技有限公司 | A kind of heat preservation plunger type metering pump |
| CN111734599A (en) * | 2020-07-23 | 2020-10-02 | 北京天地玛珂电液控制系统有限公司 | A plunger pump and pump station |
| CN113074107A (en) * | 2021-05-07 | 2021-07-06 | 大庆市金拓石油机械制造有限公司 | Hydraulic end of reciprocating pump |
| US20230366394A1 (en) * | 2020-10-09 | 2023-11-16 | Beijing Tianma Intelligent Control Technology Co., Ltd. | Emulsion plunger pump and pump head assembly thereof |
-
2014
- 2014-05-14 CN CN201420244291.4U patent/CN203796550U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104747430A (en) * | 2014-11-13 | 2015-07-01 | 三一重型装备有限公司 | Fluid end and emulsion pump |
| CN109185092A (en) * | 2018-11-09 | 2019-01-11 | 淮安市威力泵业科技有限公司 | A kind of heat preservation plunger type metering pump |
| CN111734599A (en) * | 2020-07-23 | 2020-10-02 | 北京天地玛珂电液控制系统有限公司 | A plunger pump and pump station |
| US20230366394A1 (en) * | 2020-10-09 | 2023-11-16 | Beijing Tianma Intelligent Control Technology Co., Ltd. | Emulsion plunger pump and pump head assembly thereof |
| US12253076B2 (en) * | 2020-10-09 | 2025-03-18 | Ccteg Beijing Tianma Intelligent Control Technology Co., Ltd. | Emulsion plunger pump and pump head assembly thereof |
| CN113074107A (en) * | 2021-05-07 | 2021-07-06 | 大庆市金拓石油机械制造有限公司 | Hydraulic end of reciprocating pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140827 Termination date: 20180514 |
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| CF01 | Termination of patent right due to non-payment of annual fee |