CN204753543U - One -way throttling arrangement - Google Patents
One -way throttling arrangement Download PDFInfo
- Publication number
- CN204753543U CN204753543U CN201520553159.6U CN201520553159U CN204753543U CN 204753543 U CN204753543 U CN 204753543U CN 201520553159 U CN201520553159 U CN 201520553159U CN 204753543 U CN204753543 U CN 204753543U
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- China
- Prior art keywords
- oilhole
- convex column
- throttling
- hole
- spool
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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.)
- Withdrawn - After Issue
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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Abstract
The utility model discloses an one -way throttling arrangement belongs to the valve field, but provides the one -way throttling arrangement of a folk prescription to adjusting passageway restriction area, is provided with oily scrobicular ring through the inner wall at the installation through -hole, set up the throttle oilhole on the projection body, the throttle oilhole runs through to the internal face of apron through -hole from the outer wall of the projection body, when the case rebound during to the end end face contaction with the projection body, the decompression oilhole, cross oily step, cross oily scrobicular ring and throttle oilhole intercommunication forms throttling passage, and through to the lift adjustment of the projection body at the installation through -hole, can realize adjusting above -mentioned throttling passage's area, but and then the flow of folk prescription to this throttling passage of regulation. In power station gate system, can realize reaching the effect of adjusting a speed of closing to the regulation of hydraulic oil flow when closing operation, can not influence the flow of hydraulic oil when opening operation simultaneously again, debug time can be effectively saved, work efficiency is improved.
Description
Technical field
The utility model relates to valve field, particularly relate to a kind of can one direction regulate one-way throttling device.
Background technology
Water conservancy and hydropower water inlet stop gate generally adopts hydraulic hoist to operate.When closing operation, hydraulic hoist only needs smaller power to control power supply opening rod chamber outlet cartridge valve, can carry out closing door under deadweight and the effect of outlet one-way throttling device, and move up closing the spool in a process in one-way throttling device, hydraulic oil only by the basic oilhole circulation of center spool, ensure that close a speed can not be too fast; When opening operation, the oppositely movement of the spool in one-way throttling device, opens periphery decompression oilhole, hydraulic oil by the basic oilhole of center spool and the circulation of periphery decompression oilhole, liquid resistance when reducing to open with this.It is little that this one-way throttling device has operating power, and utilize UPS control power supply to carry out operation in dead electricity situation and close door, security reliability is high.But current one-way throttling device is once install the rear just unadjustable effective area closing a hydraulic oil channel, and then the adjustment that cannot realize closing a speed, if need adjustment to close a speed, the spool by changing different structure is then needed to regulate, very complicated when power station headstock gear and gate combined debugging, and need to bleed off all hydraulic oil in oil cylinder in replacing spool process, not only waste time and energy, the leakage of hydraulic oil also produces destruction to environment.
Utility model content
The technical problem that the utility model solves is to provide and a kind ofly one direction can regulates the one-way throttling device of aisle spare.
The utility model solves the technical scheme that its technical problem adopts: one-way throttling device, comprise bottom end cover, spool and cover plate, bottom end cover is provided with installation through hole, the bottom of installing through hole is provided with positioning step, described cover plate has a convex column, in convex column, be provided with cover plate through hole, described convex column is set in be installed in through hole, forms spool cavity between the bottom face of convex column and positioning step; What described spool can freely move up and down is arranged in described spool cavity, the center of spool is provided with basic oilhole, on spool, the periphery of basic oilhole is provided with decompression oilhole, described decompression oilhole and cover plate through hole stagger, the bottom of convex column was provided with tank deck rank, and described tank deck rank are excessively corresponding with decompression oilhole; The inwall installing through hole was provided with oily scrobicular ring, and the oily scrobicular ring of described mistake is corresponding with crossing tank deck rank; Convex column arranges throttling oilhole, and described throttling oilhole is through to the internal face of cover plate through hole from the outside wall surface of convex column, and described throttling oilhole is corresponding with crossing oily scrobicular ring; When spool be moved upward to contact with the bottom face of convex column time, described decompression oilhole, cross tank deck rank, cross oily scrobicular ring is communicated with throttling oilhole formation throttling passage; What described convex column was regulated by governor motion liftable is set in installation through hole.
Further: described governor motion comprises and is arranged on the symmetrical wedge plate of between bottom end cover and cover plate two blocks, is arranged on adjustment stud on wedge plate and fixing base; By regulating, stud is adjustable to be arranged on fixing base described wedge plate.
Further: the gradient of described wedge plate ramp is 1:10.
Further: on the upper surface of wedge plate, be provided with graduation mark.
Further: when spool be moved upward to contact with the bottom face of convex column time: effective orifice size of decompression oilholes all on spool is S1, the effective orifice size crossing tank deck rank is S2, the effective orifice size crossing oily scrobicular ring is S3, effective orifice size of throttling oilholes all on convex column is S4, decompression oilhole and the effective orifice size crossed between tank deck rank are S5, the effective orifice size crossed between tank deck rank and the oily scrobicular ring of mistake is S6, and the effective orifice size crossed between oily scrobicular ring and throttling oilhole is S7; In above-mentioned S1 to S7, S6 is minimum value, and can change the size of S6 by the lift adjustment of convex column in installation through hole.
Further: when spool be moved upward to contact with the bottom face of convex column time, effective orifice size of decompression oilholes all on spool is S1, the effective orifice size crossing tank deck rank is S2, the effective orifice size crossing oily scrobicular ring is S3, effective orifice size of throttling oilholes all on convex column is S4, decompression oilhole and the effective orifice size crossed between tank deck rank are S5, the effective orifice size crossed between tank deck rank and the oily scrobicular ring of mistake is S6, the effective orifice size crossed between oily scrobicular ring and throttling oilhole is S7, in above-mentioned S1 to S7, S7 is minimum value, and the size of S7 can be changed by the lift adjustment of convex column in installation through hole.
Further: described throttling oilhole has multiple, multiple throttling oilhole is radially uniformly distributed along the circumference of convex column.
Further: described multiple throttling oilhole is around the axis Spiral distribution of convex column.
Further: between the periphery wall and the inner circumferential wall installing through hole of convex column, be provided with O RunddichtringO.
The beneficial effects of the utility model are: be set in installation through hole by what regulated by governor motion liftable by convex column, simultaneously by arranging the oilhole that reduces pressure accordingly, crossing tank deck rank, crossing oily scrobicular ring and throttling oilhole, and when spool be moved upward to contact with the bottom face of convex column time, the throttling passage of hydraulic oil circulation can be formed, and pass through convex column in the lift adjustment of installing through hole, can realize regulating the orifice size of above-mentioned throttling passage, and then the hydraulic fluid flow rate of this throttling passage adjustable, finally realize unidirectional Flow-rate adjustment.When in opening/closing system the utility model being used for gate of hydropower station, the adjustment to hydraulic fluid flow rate when closing operation can being realized, reaching the effect regulating a speed of closing, the flow of hydraulic oil when opening operation can not be affected again simultaneously; Very convenient when power station headstock gear and gate combined debugging, adjustment process only needs to regulate corresponding governor motion, without the need to changing spool, saving time, increasing work efficiency.
Accompanying drawing explanation
Fig. 1 is top view of the present utility model;
Fig. 2 is the sectional view shown in B-B cross section in Fig. 1, and now hydraulic oil for flow from top to bottom;
Fig. 3 is the sectional view shown in B-B cross section in Fig. 1, and now hydraulic oil for flow from the bottom up;
Fig. 4 is the enlarged diagram under a kind of structure of regional area A in Fig. 3;
Fig. 5 is the enlarged diagram under the another kind of structure of regional area A in Fig. 3;
Fig. 6 is lateral view of the present utility model;
Fig. 7 is the front view of wedge plate;
Fig. 8 is the lateral view of wedge plate;
Fig. 9 is the 3-D view of cover plate;
Figure 10 is the 3-D view of spool;
Figure 11 be throttling oilhole along the schematic diagram after convex column circumferentially deploying, wherein all throttling oilholes are positioned in same level;
Figure 12 be throttling oilhole along the schematic diagram after convex column circumferentially deploying, wherein all throttling oilholes are around the axis Spiral distribution of convex column;
Be labeled as in figure: bottom end cover 1, install through hole 11, positioning step 12, cross oily scrobicular ring 13, spool 2, basic oilhole 21, decompression oilhole 22, cover plate 3, cover plate through hole 31, convex column 4, cross tank deck rank 41, throttling oilhole 42, spool cavity 5, governor motion 6, wedge plate 61, inclined-plane 611, graduation mark 612, regulate stud 62, fixing base 63, waist type groove 64, O RunddichtringO 7.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is further illustrated.
As shown in Fig. 1 to Figure 12, one-way throttling device described in the utility model, comprise bottom end cover 1, spool 2 and cover plate 3, bottom end cover 1 is provided with through hole 11 is installed, the bottom of installing through hole 11 is provided with positioning step 12, and described cover plate 3 has a convex column 4, is provided with cover plate through hole 31 in convex column 4, described convex column 4 is set in be installed in through hole 11, forms spool cavity 5 between the bottom face of convex column 4 and positioning step 12; What described spool 2 can freely move up and down is arranged in described spool cavity 5, the center of spool 2 is provided with basic oilhole 21, on spool 2, the periphery of basic oilhole 21 is provided with decompression oilhole 22, described decompression oilhole 22 staggers with cover plate through hole 31, the bottom of convex column 4 was provided with tank deck rank 41, and described tank deck rank 41 are excessively corresponding with decompression oilhole 22; The inwall installing through hole 11 was provided with oily scrobicular ring 13, and the oily scrobicular ring of described mistake 13 is corresponding with crossing tank deck rank 41; Convex column 4 arranges throttling oilhole 42, and described throttling oilhole 42 is through to the internal face of cover plate through hole 31 from the outside wall surface of convex column 4, and described throttling oilhole 42 is corresponding with crossing oily scrobicular ring 13; When spool 2 be moved upward to contact with the bottom face of convex column 4 time, described decompression oilhole 22, cross tank deck rank 41, cross oily scrobicular ring 13 is communicated with throttling oilhole 42 formation throttling passage; What described convex column 4 was regulated by governor motion 6 liftable is set in installation through hole 11.
The utility model has two kinds of duties, is respectively state shown in state and Fig. 3 shown in Fig. 2; State shown in Fig. 2, hydraulic oil flows from the top down, and spool 2 moves to below and contacts with positioning step 12, and the basic oilhole 21 now on spool 2 and decompression oilhole 22 can simultaneously for hydraulic oil circulations; And shown in Fig. 3 state, hydraulic oil flows from bottom to top, spool 2 moves to the low end in contact of top and convex column 4, basic oilhole 21 now on spool 2 can for hydraulic oil circulation, and by decompression oilhole 22, cross tank deck rank 41, cross oily scrobicular ring 13 and to be communicated with the throttling passage formed with throttling oilhole 42 and also can to circulate for hydraulic oil, in this case, regulate the lifting of convex column 4 in installation through hole 11 by adjustment structure 6, the flow reaching the hydraulic oil flowed in above-mentioned throttling passage carries out regulable control.
Wherein, the effect of governor motion 6, to realize the lift adjustment of convex column 4 in installation through hole 11, as long as can realize the structure of above-mentioned effect in theory, the utility model preferably adopts following structure: described governor motion 6 comprises and is arranged on the symmetrical wedge plate 61 of between bottom end cover 1 and cover plate 3 two blocks, is arranged on adjustment stud 62 on wedge plate 61 and fixing base 63; By regulating, stud 62 is adjustable to be arranged on fixing base 63 described wedge plate 61.Its Principles of Regulation can refer to structure shown in Fig. 6, and when by adjustment close to each other for two of both sides blocks of wedge plates 61, the distance between bottom end cover 1 and cover plate 3 will increase, even if convex column 4 moves up in installation through hole 11; Otherwise when by two of both sides blocks of wedge plates 61 mutually away from adjustment time, convex column 4 moves down in installation through hole 11.Certainly, in order to make cover plate 3 also can conveniently install in wedge plate 61 moving process, generally on wedge plate 61, waist type groove 64 is provided with.
When above-mentioned employing wedge plate 61 regulates, the distance that convex column 4 is installing lifting in through hole 11 is in theory relevant to the gradient of the ratio of distances constant that wedge plate 61 moves horizontally and wedge plate 61 ramp 611, by arranging the corresponding gradient, can make the lift adjustment of convex column 4 more accurate; If the gradient preferably arranging inclined-plane 611 is 1:10, then in theory, when now wedge plate 61 moves horizontally the distance of 10 units, only drive convex column 4 in the distance of installing lifting 1 unit in through hole 11; Therefore the higher Flow-rate adjustment to hydraulic oil of its degree of regulation controls more accurate.In addition, for the ease of accurate, quantitative determination regulated value, and the location status of convex column 4, the utility model can be provided with graduation mark 612, as shown in Fig. 1 and Fig. 7 further on the upper surface of wedge plate 61.
From above-mentioned analysis, it is realized by the lifting of convex column 4 in installation through hole 11 that the utility model realizes the adjustment of hydraulic fluid flow rate in throttling passage, and, now be defined as follows structure: when spool 2 be moved upward to contact with the bottom face of convex column 4 time: effective orifice size of decompression oilholes 22 all on spool 2 is S1, the effective orifice size crossing tank deck rank 41 is S2, the effective orifice size crossing oily scrobicular ring 13 is S3, effective orifice size of throttling oilholes 42 all on convex column 4 is S4, decompression oilhole 22 and the effective orifice size crossed between tank deck rank 41 are S5, the effective orifice size crossed between tank deck rank 41 and the oily scrobicular ring 13 of mistake is S6, the effective orifice size crossed between oily scrobicular ring 13 and throttling oilhole 42 is S7, wherein, above-mentioned orifice size S1 to S7 is all a kind of equivalent areas supposed in theory, and above-mentioned S1 to S7 connects after UNICOM, it will become " bottleneck " of whole piece throttling passage at the minimum place of throttleng surface product value in theory, as long as namely suitably regulate the orifice size at minimum value place can reach the optimum efficiency of the flow regulating whole piece throttling passage.The utility model can adopt following structure to realize thus:
The first: as shown in Figure 5, first, in above-mentioned S1 to S7, arranging S6 is minimum value, that is, now S6 place is " bottleneck " of whole piece throttling passage, and is placed through the size that the lift adjustment of convex column 4 in installation through hole 11 can change S6 further; Namely when convex column 4 is when installing the lifting in through hole 11, corresponding cross tank deck rank 41 and cross between oily scrobicular ring 13 only have partial gap corresponding, another part then staggers, and along with the adjustment of convex column 4, this corresponding gap changes; Certainly, in the process regulating convex column 4, the value of all the other S1 to S5 and S7 generally can not change, even if certain value changes along with S6, also should be greater than the value of S6 all the time.
The second: as shown in Figure 4, first in above-mentioned S1 to S7, arranging S7 is minimum value, and that is, now S7 place is " bottleneck " of whole piece throttling passage, and can change the size of S7 by the lift adjustment of convex column 4 in installation through hole 11; Namely when convex column 4 is when installing the lifting in through hole 11, cross oily scrobicular ring 13 corresponding with only there being part between throttling oilhole 42, another part then staggers, and along with the adjustment of convex column 4, the size of this corresponding part changes; Certainly, in the process regulating convex column 4, the value of all the other S1 to S6 generally can not change, even if certain value changes along with S7, also should be greater than the value of S7 all the time.
In above-mentioned the second situation: generally throttling oilhole 42 is set to cylindrical hole, and is provided with multiple throttling oilhole 42 on convex column 4, and the circumference that multiple throttling oilhole 42 is traditionally arranged to be along convex column 4 is radially uniformly distributed; In this case the lifting of convex column 4 is also relevant with the distribution relation of throttling oilhole 42 with the size variation relation of orifice size S6; And general, we wish that the size variation of the lifting of convex column 4 and orifice size S6 is linear, can guarantee that adjustment process is more steady like this; But when being arranged in same level by multiple throttling oilhole 42, be the situation of the circumferentially deploying along convex column 4 as shown in figure 11, it is non-linear that the now lifting of convex column 4 and the size variation of orifice size S6 are closed, and its adjustment process is very not steady; In order to reach linear adjustment relation, situation as shown in figure 12 can be adopted, by the axis Spiral distribution of multiple throttling oilhole 42 around convex column 4; Certainly, no matter adopt which kind of structure above-mentioned, cross oily scrobicular ring 13 and also suitable size should be set according to actual conditions.
Finally, in order to ensure sealing performance, between the periphery wall and the inner circumferential wall installing through hole 11 of convex column 4, be provided with O RunddichtringO 7; The sealing of convex column 4 in lift adjustment process can be guaranteed like this.
To sum up, the one-way throttling device shown in the utility model, it can realize the adjustment of one direction flow, and very little on the uninterrupted impact of other direction.Therefore, when in the opening/closing system using it for gate of hydropower station, the adjustment to hydraulic fluid flow rate when closing operation can being realized, reaching the effect regulating a speed of closing, the flow of hydraulic oil when opening operation can not be affected again simultaneously; Very convenient when power station headstock gear and gate combined debugging, adjustment process only needs to regulate corresponding governor motion 6, without the need to changing spool 2, saving time, increasing work efficiency.
Claims (9)
1. one-way throttling device, comprise bottom end cover (1), spool (2) and cover plate (3), bottom end cover (1) is provided with through hole (11) is installed, the bottom of installing through hole (11) is provided with positioning step (12), described cover plate (3) has a convex column (4), cover plate through hole (31) is provided with in convex column (4), described convex column (4) is set in be installed in through hole (11), forms spool cavity (5) between the bottom face of convex column (4) and positioning step (12); What described spool (2) can freely move up and down is arranged in described spool cavity (5), the center of spool (2) is provided with basic oilhole (21), the periphery of the upper basic oilhole (21) of spool (2) is provided with decompression oilhole (22), described decompression oilhole (22) and cover plate through hole (31) stagger, it is characterized in that: the bottom of convex column (4) was provided with tank deck rank (41), described tank deck rank (41) are excessively corresponding with decompression oilhole (22); The inwall installing through hole (11) was provided with oily scrobicular ring (13), and the oily scrobicular ring of described mistake (13) is corresponding with crossing tank deck rank (41); Convex column (4) arranges throttling oilhole (42), described throttling oilhole (42) is through to the internal face of cover plate through hole (31) from the outside wall surface of convex column (4), described throttling oilhole (42) is corresponding with crossing oily scrobicular ring (13); When spool (2) be moved upward to contact with the bottom face of convex column (4) time, described decompression oilhole (22), cross tank deck rank (41), cross oily scrobicular ring (13) be communicated with throttling oilhole (42) formation throttling passage; What described convex column (4) was regulated by governor motion (6) liftable is set in installation through hole (11).
2. one-way throttling device as claimed in claim 1, is characterized in that: described governor motion (6) comprises and is arranged on the symmetrical wedge plate (61) of between bottom end cover (1) and cover plate (3) two blocks, is arranged on adjustment stud (62) on wedge plate (61) and fixing base (63); By regulating, stud (62) is adjustable to be arranged on fixing base (63) described wedge plate (61).
3. one-way throttling device as claimed in claim 2, is characterized in that: the gradient of described wedge plate (61) ramp (611) is 1:10.
4. one-way throttling device as claimed in claim 2, is characterized in that: on the upper surface of wedge plate (61), be provided with graduation mark (612).
5. the one-way throttling device according to any one of Claims 1-4, it is characterized in that: when spool (2) be moved upward to contact with the bottom face of convex column (4) time: effective orifice size of the upper all decompression oilholes (22) of spool (2) is S1, the effective orifice size crossing tank deck rank (41) is S2, the effective orifice size crossing oily scrobicular ring (13) is S3, effective orifice size of the upper all throttling oilholes (42) of convex column (4) is S4, decompression oilhole (22) and the effective orifice size crossed between tank deck rank (41) are S5, the effective orifice size crossed between tank deck rank (41) and the oily scrobicular ring of mistake (13) is S6, the effective orifice size crossed between oily scrobicular ring (13) and throttling oilhole (42) is S7, in above-mentioned S1 to S7, S6 is minimum value, and can change the size of S6 by the lift adjustment of convex column (4) in installation through hole (11).
6. the one-way throttling device according to any one of Claims 1-4, it is characterized in that: when spool (2) be moved upward to contact with the bottom face of convex column (4) time, effective orifice size of the upper all decompression oilholes (22) of spool (2) is S1, the effective orifice size crossing tank deck rank (41) is S2, the effective orifice size crossing oily scrobicular ring (13) is S3, effective orifice size of the upper all throttling oilholes (42) of convex column (4) is S4, decompression oilhole (22) and the effective orifice size crossed between tank deck rank (41) are S5, the effective orifice size crossed between tank deck rank (41) and the oily scrobicular ring of mistake (13) is S6, the effective orifice size crossed between oily scrobicular ring (13) and throttling oilhole (42) is S7, in above-mentioned S1 to S7, S7 is minimum value, and the size of S7 can be changed by the lift adjustment of convex column (4) in installation through hole (11).
7. one-way throttling device as claimed in claim 6, it is characterized in that: described throttling oilhole (42) has multiple, multiple throttling oilhole (42) is radially uniformly distributed along the circumference of convex column (4).
8. one-way throttling device as claimed in claim 7, is characterized in that: described multiple throttling oilhole (42) is around the axis Spiral distribution of convex column (4).
9. one-way throttling device as claimed in claim 1, is characterized in that: between the periphery wall and the inner circumferential wall installing through hole (11) of convex column (4), be provided with O RunddichtringO (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520553159.6U CN204753543U (en) | 2015-07-28 | 2015-07-28 | One -way throttling arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520553159.6U CN204753543U (en) | 2015-07-28 | 2015-07-28 | One -way throttling arrangement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204753543U true CN204753543U (en) | 2015-11-11 |
Family
ID=54468269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520553159.6U Withdrawn - After Issue CN204753543U (en) | 2015-07-28 | 2015-07-28 | One -way throttling arrangement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204753543U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105064301A (en) * | 2015-07-28 | 2015-11-18 | 中国电建集团成都勘测设计研究院有限公司 | Adjustable one-way throttling device |
-
2015
- 2015-07-28 CN CN201520553159.6U patent/CN204753543U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105064301A (en) * | 2015-07-28 | 2015-11-18 | 中国电建集团成都勘测设计研究院有限公司 | Adjustable one-way throttling device |
| CN105064301B (en) * | 2015-07-28 | 2016-08-17 | 中国电建集团成都勘测设计研究院有限公司 | Adjustable one-way throttling device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20151111 Effective date of abandoning: 20160817 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |