CN102635544B - Sea water pump plunger pair - Google Patents
Sea water pump plunger pair Download PDFInfo
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- CN102635544B CN102635544B CN201210147873.6A CN201210147873A CN102635544B CN 102635544 B CN102635544 B CN 102635544B CN 201210147873 A CN201210147873 A CN 201210147873A CN 102635544 B CN102635544 B CN 102635544B
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- sealing seat
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Abstract
The invention discloses a sea water pump plunger pair which comprises a plunger cylinder sleeve (1), a sealing socket (2), a sealing socket end cover (3), a plunger (4),a water inlet valve (5) and a water outlet hole (6), wherein the end part of one end of a containing cavity (7), which is provided with the plunger (4), is provided with the sealing socket (2); the sealing socket (2) is provided with a plunger hole; the inner sides of two ends of the sealing socket (2) are provided with sealing slots; a step seal (8) is arranged in each sealing socket; an O-shaped sealing ring (9) is arranged between the outer wall of the sealing socket (2) and the inner wall of the plunger cylinder sleeve (1); and the inner wall of the plunger hole of the sealing socket (2) and the inner wall of the containing cavity (7) of the plunger cylinder sleeve (1) are provided with one layer of anti-attrition sleeve (12). The sea water pump plunger pair has the beneficial effects that the problem that plunger pull and abrasion can be solved, the service life of the plunger pair is prolonged, the dynamic sealing problem of ultra-high pressure is solved by a seepage-proof channel, the sealing performance of the plunger pair is improved, and leakage is effectively prevented.
Description
Technical field
The present invention relates to technical field of hydraulic elements, particularly a kind of sea water pump trunk piston set.
Background technique
Trunk piston set be in plunger pump critical component, plunger has moved reciprocatingly water suction and the process of draining in plunger cavity.Current trunk piston set generally comprises plunger, plunger bushing, spring and two spring seats, in described plunger bushing, be provided with oil pocket, two one of spring seats are linked on the excircle of plunger, another is arranged on the excircle of plunger bushing, the two ends of spring offset respectively at two spring seats, plunger under the effect of oil pressure with plunger bushing sliding fit, and by described spring reset, the end of plunger bushing is provided with water intake, the side of plunger bushing is provided with osculum, and water intake is connected respectively inlet valve and outlet valve with osculum.Existing inlet valve or outlet valve adopt flap type conventionally, and sealing effect is poor, can not adapt to high pressure operating mode, and existing plunger is arranged in plunger bushing, directly and plunger friction, serious wear, working life is short; The sealing of existing plunger generally adopts clearance seal, has allowed certain leakage, has caused volumetric efficiency low; The motive sealing problem of ultrahigh pressure not yet solves.
Summary of the invention
The object of the invention is to overcome the shortcoming of prior art, a kind of sea water pump trunk piston set that can adapt to high pressure operating mode, good airproof performance, long service life is provided.
Object of the present invention is achieved through the following technical solutions: sea water pump trunk piston set, it comprises plunger cylinder sleeve, sealing seat, sealing seat end cap, plunger, inlet valve and osculum, plunger case is arranged with cavity volume, plunger is arranged in the cavity volume of plunger cylinder sleeve, the end that cavity volume is provided with one end of plunger is provided with sealing seat, sealing seat is fixed by the sealing seat end cap that is arranged at its outside, the other end of cavity volume is provided with inlet valve, osculum is to be arranged at the radial direction through hole that plunger case puts and be communicated with cavity volume, and osculum end is connected with outlet valve;
Sealing seat is provided with plunger hole, and the inner side at sealing seat two ends is equipped with seal groove, is provided with this special envelope in seal groove; This special envelope of sealing seat one end is pressed in seal groove by the end face of plunger cylinder sleeve, and the sealed seat of this special envelope end cap of the sealing seat the other end is pressed in seal groove, between the outer wall of sealing seat and the inwall of plunger cylinder sleeve, is provided with O RunddichtringO;
Plunger excircle is also set with catch and recovers spring, and the one end of recovering spring presses on catch, and the other end that recovers spring presses on plunger case and puts;
The plunger hole inwall of described sealing seat and the cavity volume inwall of plunger cylinder sleeve are equipped with one deck anti-attrition cover.
The upper antiseepage passage A being also respectively equipped with and the antiseepage channel B of described sealing seat and plunger cylinder sleeve, antiseepage passage A and antiseepage channel B are disposed radially and are interconnected, the both sides that are positioned at antiseepage passage A and antiseepage channel B between sealing seat and plunger cylinder sleeve are respectively provided with an O RunddichtringO, and the antiseepage passage A of connection and antiseepage channel B are communicated with sea water pump water intake.
Described inlet valve comprises valve seat, valve block and turriform spring, this end that cavity volume is provided with inlet valve is stepped bore, valve seat, valve block and turriform spring are all arranged in this stepped bore, valve seat and cavity volume inwall are threaded connection, valve seat lower end is provided with valve block and turriform spring successively, the end face of turriform spring one end and cavity volume stepped bore offsets, the other end and the valve block of turriform spring offset, valve block presses on entrance valve seat under spring action, valve block is by center valve plate and be positioned at the through hole that valve plate outside, center is uniformly distributed circumferentially, valve seat is provided with annular ridge with the end face that valve block center valve plate contacts, the cross section of described annular ridge is semicircle, between the inwall of the outer wall of valve seat and plunger cylinder sleeve, be provided with O RunddichtringO, the top of valve seat is also provided with mounting plate, mounting plate is provided with mounting hole.
The material of described anti-attrition cover is high abrasion, withstand voltage teflon.
The present invention has the following advantages: the present invention is by inlay one deck nonmetallic material in plunger cylinder sleeve, by metal between former trunk piston set and contacting of metal be improved as metal and nonmetal between contact, solved pulling and wear problem of plunger, the nonmetallic material that adopt are wear-resisting polytetrafluoroethylmaterial material, and its utilization has changed the way of contact of original trunk piston set tradition, has extended the working life of trunk piston set, abandon traditional clearance seal form, adopt seal ring seal, and sealing configuration is designed, the employing of antiseepage passage has solved the motive sealing problem of ultrahigh pressure, improve the sealability of trunk piston set, effectively solve leakage problems, between trunk piston set, be sealed into motive sealing, between plunger and plunger cavity, there is relative movement, the corresponding gap that just certainly exists, although gap is very little, be not enough to leak, but under the shape body of ultrahigh pressure, inevitable when seepage, the present invention is provided with two seals ring, this the special envelope adopting under high pressure perhaps there will be seepage situation, but under low pressure, very reliable when its sealability, two seals ring is equivalent to twice insurance, can ensure the reliability of sealing, between two seals ring, be provided with antiseepage passage, after seawater is entered by first seal ring seepage, closely can get back to water intake by antiseepage passage, thereby improve the sealability of trunk piston set, inlet valve valve seat bottom is provided with annular ridge, fin cross section is semicircle, makes valve seat and valve block form the sealing of line face, is not subject to the impact of impurity in working medium, good airproof performance, stable working state, precision are high, long service life, open or close the sound sending little, seal form is that original leptoprosopy sealing has become the sealing of line face, and under same machining accuracy, the sealing of line face is more reliable than leptoprosopy sealing.
Brief description of the drawings
Fig. 1 is structural representation of the present invention
In figure, 1-plunger cylinder sleeve, 2-sealing seat, 3-sealing seat end cap, 4-plunger, 5-inlet valve, 6-osculum, 7-cavity volume, the special envelope of 8-Si, 9-O RunddichtringO, 10-catch, 11-recovers spring, 12-anti-attrition cover, 13-antiseepage passage A, 14-antiseepage channel B, 15-valve seat, 16-valve block, 17-turriform spring, 18-center valve plate, 19-through hole, 20-annular ridge.
Embodiment
Below in conjunction with accompanying drawing, the present invention will be further described:
As shown in Figure 1, sea water pump trunk piston set, it comprises plunger cylinder sleeve 1, sealing seat 2, sealing seat end cap 3, plunger 4, inlet valve 5 and osculum 6, plunger cylinder sleeve 1 is provided with cavity volume 7, plunger 4 is arranged in the cavity volume 7 of plunger cylinder sleeve 1, the end that cavity volume 7 is provided with one end of plunger 4 is provided with sealing seat 2, sealing seat 2 is fixed by the sealing seat end cap 3 that is arranged at its outside, the other end of cavity volume 7 is provided with inlet valve 5, osculum 6 is for to be arranged at the radial direction through hole being communicated with on plunger cylinder sleeve 1 and with cavity volume 7, and osculum 6 ends are connected with outlet valve;
Sealing seat 2 is provided with plunger hole, and the inner side at sealing seat 2 two ends is equipped with seal groove, is provided with this special envelope 8 in seal groove; This special envelope 8 of sealing seat 2 one end is pressed in seal groove by the end face of plunger cylinder sleeve 1, and 8 sealed end caps 3 of this special envelope of sealing seat 2 the other ends are pressed in seal groove, between the outer wall of sealing seat 2 and the inwall of plunger cylinder sleeve 1, are provided with O RunddichtringO 9;
Plunger 4 excircles are also set with catch 10 and recover spring 11, and the one end of recovering spring 11 presses on catch 10, and the other end that recovers spring 11 presses on plunger cylinder sleeve 1;
Cavity volume 7 inwalls of the plunger hole inwall of described sealing seat 2 and plunger cylinder sleeve 1 are equipped with one deck anti-attrition cover 12.
The upper antiseepage passage A13 being also respectively equipped with and the antiseepage channel B 14 of described sealing seat 2 and plunger cylinder sleeve 1, antiseepage passage A13 and antiseepage channel B 14 are disposed radially and are interconnected, the both sides that are positioned at antiseepage passage A13 and antiseepage channel B 14 between sealing seat 2 and plunger cylinder sleeve 1 are respectively provided with an O RunddichtringO 9, and the antiseepage passage A13 of connection and antiseepage channel B 14 are communicated with sea water pump water intake.
Described inlet valve 5 comprises valve seat 15, valve block 16 and turriform spring 17, this end that cavity volume 7 is provided with inlet valve 5 is stepped bore, valve seat 15, valve block 16 and turriform spring 17 are all arranged in this stepped bore, valve seat 15 is threaded connection with cavity volume 7 inwalls, valve seat 15 lower ends are provided with valve block 16 and turriform spring 17 successively, the end face of turriform spring 17 one end and cavity volume 7 stepped bore offsets, the other end of turriform spring 17 and valve block 16 offset, valve block 16 presses on entrance valve seat 15 under spring action, valve block 16You center valve plate 18 and be positioned at the through hole 19 that valve plate 18 outsides in center are uniformly distributed circumferentially, valve seat 15 is provided with annular ridge 20 with the end face that valve block 16 center valve plates 18 contact, the cross section of described annular ridge 20 is semicircle, between the inwall of the outer wall of valve seat 15 and plunger cylinder sleeve 1, be provided with O RunddichtringO 9, the top of valve seat 15 is also provided with mounting plate, mounting plate is provided with mounting hole.
The material of described anti-attrition cover 12 is high abrasion, withstand voltage teflon.
Plunger 4 has moved reciprocatingly and has absorbed water and drainage procedure in plunger cylinder sleeve 1, inlet valve 5 adopts the sealing of line face, good airproof performance, stable working state, precision are high, long service life, open or close the sound sending little, be provided with this special envelope 8 of twice, and this 8 of special envelope of twice is provided with antiseepage passage, and antiseepage passage is communicated with sea water pump water intake, makes trunk piston set good sealing effect.
Claims (3)
1. sea water pump trunk piston set, it is characterized in that: it comprises plunger cylinder sleeve (1), sealing seat (2), sealing seat end cap (3), plunger (4), inlet valve (5) and osculum (6), plunger cylinder sleeve (1) is provided with cavity volume (7), plunger (4) is arranged in the cavity volume (7) of plunger cylinder sleeve (1), the end that cavity volume (7) is provided with one end of plunger (4) is provided with sealing seat (2), sealing seat (2) is fixed by the sealing seat end cap (3) that is arranged at its outside, the other end of cavity volume (7) is provided with inlet valve (5), osculum (6) is for being arranged at the radial direction through hole being communicated with on plunger cylinder sleeve (1) and with cavity volume (7),
Sealing seat (2) is provided with plunger hole, and the inner side at sealing seat (2) two ends is equipped with seal groove, is provided with this special envelope (8) in seal groove; This special envelope (8) of sealing seat (2) one end is pressed in seal groove by the end face of plunger cylinder sleeve (1), this special envelope (8) sealed seat end cap (3) of sealing seat (2) the other end is pressed in seal groove, between the outer wall of sealing seat (2) and the inwall of plunger cylinder sleeve (1), is provided with O RunddichtringO (9);
Plunger (4) excircle is also set with catch (10) and recovers spring (11), and the one end of recovering spring (11) presses on catch (10) above, and the other end that recovers spring (11) presses on plunger cylinder sleeve (1);
Cavity volume (7) inwall of the plunger hole inwall of described sealing seat (2) and plunger cylinder sleeve (1) is equipped with anti-attrition cover (12);
Described inlet valve (5) comprises valve seat (15), valve block (16) and turriform spring (17), this end that cavity volume (7) is provided with inlet valve (5) is stepped bore, valve seat (15), valve block (16) and turriform spring (17) are all arranged in this stepped bore, valve seat (15) is threaded connection with cavity volume (7) inwall, valve seat (15) lower end is provided with valve block (16) and turriform spring (17) successively, the end face of turriform spring (17) one end and cavity volume (7) stepped bore offsets, the other end of turriform spring (17) and valve block (16) offset, valve block (16) presses on entrance valve seat (15) under spring action, valve block (16) is by center valve plate (18) and be positioned at through hole (19) formation that center valve plate (18) outside is uniformly distributed circumferentially, the end face that valve seat (15) contacts with valve block (16) center valve plate (18) is provided with annular ridge (20), the cross section of described annular ridge (20) is semicircle, between the inwall of the outer wall of valve seat (15) and plunger cylinder sleeve (1), be provided with O RunddichtringO (9).
2. sea water pump trunk piston set according to claim 1, it is characterized in that: on described sealing seat (2) and plunger cylinder sleeve (1), be also respectively equipped with antiseepage passage A(13) and antiseepage channel B (14), antiseepage passage A(13) and antiseepage channel B (14) be disposed radially and be interconnected, between sealing seat (2) and plunger cylinder sleeve (1), be positioned at antiseepage passage A(13) and the both sides of antiseepage channel B (14) be respectively provided with an O RunddichtringO (9).
3. sea water pump trunk piston set according to claim 1, is characterized in that: the material of described anti-attrition cover (12) is teflon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210147873.6A CN102635544B (en) | 2012-05-14 | 2012-05-14 | Sea water pump plunger pair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210147873.6A CN102635544B (en) | 2012-05-14 | 2012-05-14 | Sea water pump plunger pair |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102635544A CN102635544A (en) | 2012-08-15 |
| CN102635544B true CN102635544B (en) | 2014-11-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210147873.6A Active CN102635544B (en) | 2012-05-14 | 2012-05-14 | Sea water pump plunger pair |
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| Country | Link |
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| CN (1) | CN102635544B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103850926A (en) * | 2014-03-28 | 2014-06-11 | 天津市精诚高压泵制造有限责任公司 | Threaded connection and combination type liquid feed/drainage valve set |
| CN103850927A (en) * | 2014-03-28 | 2014-06-11 | 天津市精诚高压泵制造有限责任公司 | Liquid inlet and outlet valve group of high-pressure pump |
| CN107859744A (en) * | 2017-11-17 | 2018-03-30 | 江西怡杉环保股份有限公司 | HTHP sealed digestion device |
| CN112240288A (en) * | 2020-11-02 | 2021-01-19 | 上海亦又新能源科技有限公司 | High-wear-resistance plunger pump crankshaft and long-service-life high-pressure plunger pump |
| CN113123961B (en) * | 2021-05-10 | 2022-07-12 | 华中科技大学 | High-pressure double-sealing and controllable aligning structure and plunger pump |
| CN114593209A (en) * | 2022-04-07 | 2022-06-07 | 北京天玛智控科技股份有限公司 | Isolation assembly |
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| CN102635544A (en) | 2012-08-15 |
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| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Duan Xiangqian Inventor after: Yu Zuying Inventor after: Zhao Hongyu Inventor after: Xu Zhuhua Inventor after: Deng Bin Inventor after: Wang Dongzhe Inventor after: Pu Zhilin Inventor before: Duan Xiangqian Inventor before: Yu Zuying Inventor before: Zhao Hongyu Inventor before: Xu Zhuhua Inventor before: Deng Bin Inventor before: Wang Dongzhe Inventor before: Pu Zhilin Inventor before: Chen Lin |
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Free format text: CORRECT: INVENTOR; FROM: DUAN XIANGQIAN YU ZUYING ZHAO HONGYU XU ZHUHUA DENG BIN WANG DONGZHE PU ZHILIN CHEN LIN TO: DUAN XIANGQIAN YU ZUYING ZHAO HONGYU XU ZHUHUA DENG BIN WANG DONGZHE PU ZHILIN |
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Address after: High tech Zone Gaopeng road in Chengdu city of Sichuan province 610017 5 Building No. 2 Room 501 Patentee after: CHENGDU OUXUN TECHNOLOGY CO., LTD. Address before: High tech Zone Gaopeng road in Chengdu city of Sichuan province in 610017 B No. 5 Room 201 Patentee before: Chengdu Ouxun Ocean Engineering Equipment Technology Co., Ltd. |