CN105041632A - High-pressure pump - Google Patents
High-pressure pump Download PDFInfo
- Publication number
- CN105041632A CN105041632A CN201510368194.5A CN201510368194A CN105041632A CN 105041632 A CN105041632 A CN 105041632A CN 201510368194 A CN201510368194 A CN 201510368194A CN 105041632 A CN105041632 A CN 105041632A
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- Prior art keywords
- ring
- rings
- piston
- service pump
- pressure service
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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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- Details Of Reciprocating Pumps (AREA)
- Sealing Devices (AREA)
Abstract
The invention provides a high-pressure pump. The high-pressure pump comprises a prestressed ceramic cylinder body, wherein a piston is mounted in the prestressed ceramic cylinder body; sealing rings are arranged on the piston; each sealing ring consists of two opening rings in parallel connection. The high-pressure pump is provided with the opening rings, so that abrasion can be compensated; through the two opening rings in parallel connection, the probability that the openings of the opening rings are overlapped can be effectively reduced, so that leakage can be avoided; three sealing rings are arranged, so that the probability that the openings of the opening rings are overlapped is guaranteed to be effectively reduced, and the sealing reliability is guaranteed; spring expansion rings are arranged the opening rings, so that the defect that the opening rings are not elastic enough is overcome; each opening ring is formed by splicing two half bodies, so that the assembly is facilitated.
Description
Technical field
The present invention relates to a kind of high-pressure service pump, be specifically related to a kind of high-pressure service pump of high sealing high-wear resistance.
Background technique
Conventional high-tension pump is positive displacement high-pressure service pump, and this type of high pressure pump structure composition mainly comprises the pump housing, piston, driving mechanism, liquid selector valve.Its working principle is: driving mechanism drives piston reciprocating in the pump housing, and when exporting highly pressurised liquid, high pressure check valve is opened, and low pressure check valve is closed.During backward stroke of the piston, high pressure check valve is closed, and low pressure check valve opens liquid make-up.Piston is continuous reciprocation cycle under the drive of driving mechanism, completes the process constantly exporting highly pressurised liquid.
At present, the high-pressure service pump of this kind of structural principle is widely used, and such as can be used for the industries such as oil, shale gas, building, chemical industry, cleaning, an outstanding shortcoming of this high-pressure service pump is: piston seal wearing and tearing are larger, need often to change, thus cause system reliability to reduce.
Summary of the invention
One of the object of the invention is to provide a kind of high-pressure service pump, and this high-pressure service pump long service life, sealing is reliable, operation strategies is wide.
To achieve these goals, the invention provides following technological scheme.
The invention provides a kind of high-pressure service pump, this high-pressure service pump comprises prestressed ceramic cylinder body, and piston is arranged in described prestressed ceramic cylinder body, and described piston is provided with seal ring, and each described seal ring is two trip rings in parallel.
Further, in each described trip ring, spring piston ring is installed.
Further, described trip ring is ceramic ring.
Further, each described ceramic ring is put together by two semi-rings.
Further, described trip ring is made up of the metal being coated with high-abrasive material.
Further, described piston is provided with seal ring described in 1 ~ 3 road.
Further, described prestressed ceramic cylinder body is the ceramic cylinder that interference fit has metallic sheath.
Beneficial effect of the present invention is, described high-pressure service pump is provided with trip ring, thus can compensate for wear; The probability that two trip rings in parallel can effectively reduce the superposition of end gap of trip ring is set, thus can Leakage prevention; 3 road seal rings are set, guarantee the superposition of end gap probability more effectively reducing trip ring, thus guarantee sealing reliability; Be provided with spring piston ring in trip ring, thus the logy defect of trip ring can be made up; Trip ring is put together by two halfbodies, and this design is more conducive to assembling.
Accompanying drawing explanation
Figure 1 shows that the schematic cross sectional view of high-pressure service pump of the present invention.
Embodiment
Hereafter will describe the present invention in detail in conjunction with specific embodiments.It should be noted that the combination of technical characteristics or the technical characteristics described in following embodiment should not be considered to isolated, they can mutually be combined thus be reached better technique effect.
As shown in Figure 1, high-pressure service pump provided by the invention comprises prestressed ceramic cylinder body 10, and piston 12 is arranged in Ceramic cylinder block 10, and piston 12 can be established 1 ~ 3 road seal ring, per pass seal ring can be two trip rings 13 in parallel, can mounting spring piston ring 14 in each trip ring 13.
Preferably, trip ring 13 can be ceramic ring.
Trip ring 13 can also be made up of the metal being coated with high-abrasive material.
Further preferably, trip ring 13 is put together by two semi-rings.
Prestressed ceramic cylinder body 10 can be the industrial ceramics cylinder that interference fit has metallic sheath.With regard to the industrial ceramics cylinder that interference fit has metallic sheath, static pressure stress suffered by prestressed ceramic cylinder body 10 is less than its allowable stress, during work, its pressure is still greater than zero, namely, prestressed ceramic cylinder body 10 not tension stress in working when static state, object gives full play to the advantage that stupalith is wear-resisting, compression resistance is good, overcomes the shortcoming of tension, fatigue resistance difference, extend the working life of cylinder thus.And metallic sheath at work suffered pulling force should be no more than its allowable stress.
The object that trip ring 13 arranges opening is compensate for wear.In addition, the superposition of end gap probability that two trip rings 13 in parallel can effectively reduce trip ring is set, Leakage prevention thus.Certainly, 3 road seal rings are set, just more can effectively reduce the superposition of end gap probability of trip ring 13, thus guarantee the reliability of sealing.
The effect arranging spring piston ring 14 in trip ring 13 makes up the logy defect of trip ring 13, specifically, spring piston ring 14 can strut trip ring 13, compensates the wearing and tearing of trip ring 13 and Ceramic cylinder block 10 better, reduce the fatigue of trip ring 13, thus extend the working life of trip ring 13.
When trip ring 13 is pieced together by two semi-rings, this design is then more conducive to assembling, and is conducive to the structural design of piston 12, in addition, although trip ring 13 is provided with opening, because having spring piston ring 14 in trip ring 13, the sealing effect of piston 12 can't be affected.
Although give some embodiments of the present invention, it will be understood by those of skill in the art that without departing from the spirit of the invention herein, can change embodiment herein.Above-described embodiment is exemplary, should using embodiment herein as the restriction of interest field of the present invention.
Claims (7)
1. a high-pressure service pump, is characterized in that, comprises prestressed ceramic cylinder body, and piston is arranged in described prestressed ceramic cylinder body, and described piston is provided with seal ring, and each described seal ring is two trip rings in parallel.
2. a kind of high-pressure service pump as claimed in claim 1, is characterized in that, is provided with spring piston ring in each described trip ring.
3. a kind of high-pressure service pump as claimed in claim 2, is characterized in that, described trip ring is ceramic ring.
4. a kind of high-pressure service pump as claimed in claim 3, is characterized in that, each described ceramic ring is put together by two semi-rings.
5. a kind of high-pressure service pump as claimed in claim 2, is characterized in that, described trip ring is made up of the metal being coated with high-abrasive material.
6. a kind of high-pressure service pump as described in any one of claim 1 to 5, is characterized in that, described piston is provided with seal ring described in 1 ~ 3 road.
7. a kind of high-pressure service pump as claimed in claim 6, is characterized in that, described prestressed ceramic cylinder body is the ceramic cylinder that interference fit has metallic sheath.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510368194.5A CN105041632A (en) | 2015-06-29 | 2015-06-29 | High-pressure pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510368194.5A CN105041632A (en) | 2015-06-29 | 2015-06-29 | High-pressure pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105041632A true CN105041632A (en) | 2015-11-11 |
Family
ID=54448509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510368194.5A Pending CN105041632A (en) | 2015-06-29 | 2015-06-29 | High-pressure pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105041632A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106884987A (en) * | 2017-03-13 | 2017-06-23 | 禾通科技公司 | Dynamic seal structure and hydraulic means |
| CN112855522A (en) * | 2021-02-20 | 2021-05-28 | 江苏可奈力机械制造有限公司 | Plunger of micro ultra-high pressure plunger pump and pressure balance plunger hole assembly |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3658348A (en) * | 1969-05-22 | 1972-04-25 | Borsig Gmbh | Seal for piston rods and pistons of piston machines |
| CN2366630Y (en) * | 1998-09-01 | 2000-03-01 | 李勇涛 | Three-ring type combination type sealing means |
| CN2639540Y (en) * | 2003-07-30 | 2004-09-08 | 袁黎明 | Piston of parallel, lining combined sealing structure |
| CN203081678U (en) * | 2013-01-30 | 2013-07-24 | 无锡书谱尔精密机械科技有限公司 | Crystallization-preventing ceramic pump |
| CN103917809A (en) * | 2011-02-25 | 2014-07-09 | 昱曦机械高新科技有限公司 | Coiled felt seal(CFS) sealed piston of hydraulic cylinder |
-
2015
- 2015-06-29 CN CN201510368194.5A patent/CN105041632A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3658348A (en) * | 1969-05-22 | 1972-04-25 | Borsig Gmbh | Seal for piston rods and pistons of piston machines |
| CN2366630Y (en) * | 1998-09-01 | 2000-03-01 | 李勇涛 | Three-ring type combination type sealing means |
| CN2639540Y (en) * | 2003-07-30 | 2004-09-08 | 袁黎明 | Piston of parallel, lining combined sealing structure |
| CN103917809A (en) * | 2011-02-25 | 2014-07-09 | 昱曦机械高新科技有限公司 | Coiled felt seal(CFS) sealed piston of hydraulic cylinder |
| CN203081678U (en) * | 2013-01-30 | 2013-07-24 | 无锡书谱尔精密机械科技有限公司 | Crystallization-preventing ceramic pump |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106884987A (en) * | 2017-03-13 | 2017-06-23 | 禾通科技公司 | Dynamic seal structure and hydraulic means |
| CN106884987B (en) * | 2017-03-13 | 2018-09-21 | 禾通科技公司 | Dynamic seal structure and hydraulic device |
| CN112855522A (en) * | 2021-02-20 | 2021-05-28 | 江苏可奈力机械制造有限公司 | Plunger of micro ultra-high pressure plunger pump and pressure balance plunger hole assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151111 |
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| RJ01 | Rejection of invention patent application after publication |