CN202768977U - Tube rupture automatic water flow overspeed drag device - Google Patents
Tube rupture automatic water flow overspeed drag device Download PDFInfo
- Publication number
- CN202768977U CN202768977U CN 201220491600 CN201220491600U CN202768977U CN 202768977 U CN202768977 U CN 202768977U CN 201220491600 CN201220491600 CN 201220491600 CN 201220491600 U CN201220491600 U CN 201220491600U CN 202768977 U CN202768977 U CN 202768977U
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- valve
- valve plate
- water flow
- drag device
- water
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- Expired - Lifetime
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Abstract
A tube rupture automatic water flow overspeed drag device comprises a valve body, a valve plate and a valve shaft. The valve body is in a cylindrical shape with two ends open, protruded eccentric installation chambers are respectively and integrally arranged on two sides of the valve body, and the valve shaft is arranged on the valve body. A valve plate main body of the valve plate is fixed on the valve shaft through a shaft seat fixed on the valve plate, an upwards warped plate is integrally arranged at the edge of a water facing face of the valve plate main body, and a water drainage hole is arranged on a semi-oval portion of one side, opposite to the warped plate, of the valve plate main body. A first blocking ring and a second blocking ring are respectively fixed at the upper portion and the lower portion of the inner wall of the valve body, and the two blocking rings are matched with the upper edge and the lower edge of the valve plate. Location pins are respectively and symmetrically fixed on the inner wall of the valve body under two sides of the valve plate main body. When water flow is overspeed, the drag device is closed, water can be drained from the water drainage hole, and the drag device can automatically return after water flow stops. The drag device can be applied to water delivery pipelines to prevent water flow speed from being too fast, the warped plate increases partial resistance, damage of high speed overflow is avoided, and water resistance is low in normal water delivery. The tube rupture automatic water flow overpseed drag device is simple, compact and reasonable in structure.
Description
Technical field
The utility model belongs to booster current hypervelocity drag device field, particularly booster automatic water flow hypervelocity drag device.
Background technique
The reason such as aging or corrosion owing to pipeline, cause aqueduct in running, to break suddenly to cause the situation that current moments increases, high-velocity flow not only can work the mischief to pipeline and equipment, also may jeopardize the security of the lives and property that booster is put the peripheral masses, produces greater loss.
The current-limiting apparatus that uses is now normally regulated by manual control or automatically control, has some shortcomings, and for example the promptness of manual tune reduces greatly, and it is more high automatically to control complicated cost, still has potential safety hazard, can have an accident unavoidably.
The model utility content
The purpose of this utility model provides booster automatic water flow hypervelocity drag device.This drag device uses eccentric valve shaft and eccentric orifice plate design, can be when current increase suddenly, and autoshutdown, simple in structure, safe and reliable.
The technological scheme that adopts is:
Booster automatic water flow hypervelocity drag device comprises valve body, valve plate and valve shaft.
Its technological points is:
Valve body is the cylindrical shape of both ends open, desired location has been wholely set respectively installation room in the valve body both sides, two installation rooms are symmetrical with radius, the line of two installation rooms is positioned at the below of valve body transverse diameter, installation room for eccentric setting on valve body, the line that namely makes progress between two installation rooms in round week departs from the center of circle, and parallels with diameter.
The two ends of valve shaft are installed in two installation rooms.
Valve plate comprises valve plate body and the seesaw of integrative-structure, and seesaw becomes set angle with the valve plate body.
The valve plate body is installed on the valve shaft by at least two axle beds that are fixed on the valve plate body, the edge of valve plate body upstream face is wholely set the seesaw that is upturned, offer at least one weep hole on the semiellipse of a side relative with the seesaw part on the valve plate body, described at least one weep hole is the weep hole that arranges at valve plate eccentric.
Be fixed with respectively the first back-up ring and the second back-up ring in the position that valve interior wall is set up and down, the up and down marginal position of described two back-up rings and valve plate cooperatively interacts, and when valve plate was closed, described two back-up rings were fixed valve plate, and stop in valve interior wall.
The desired location that is positioned at valve plate body down either side at valve interior wall is symmetrically fixed with respectively locating stud, when water velocity normal or without flowing water by the time, the valve plate body is supported on two locating studs, makes valve plate body maintenance level.
Described weep hole can be circle or ellipse, and water is flow through.
The folded acute angle angle A of the elongation line of described seesaw and valve plate body determines according to the start velocity of setting.
Described valve plate is oval, and when valve plate was closed, the edge of valve plate matched with the inner wall shape of pipeline.
Valve body can be connected with pipeline by welding or by flange plate.
The desired location of the center of gravity O1 of this valve plate between valve shaft and seesaw, make valve plate can current stop or the front and back pressure balance after can automatically reset.
When the water delivery flow velocity was normal, this device resistance to water-flow was very little, and when only having flow velocity to surpass setting value, ultrarapid flow just makes with the valve plate startup of weep hole and closes.
Its working principle is:
1, normal water delivery state
When normal water delivery, such as Fig. 1, the moment of torsion M that valve plate is produced around valve shaft o by gravity G and water flow impact pressure, at this moment, because during the lower V0 of water velocity, the moment that water flow impact pressure produces is not enough to overcome gravity G, the trend that valve plate is had turn clockwise, this trend is positioned at the locating stud prevention that near the restriction the valve shaft is rotated, and makes valve plate keep level.This moment, valve plate was motionless, and current flow through from the valve plate both sides, and water resistance is very little.
Starting state when 2, current exceed the speed limit
Such as Fig. 2, when aqueduct sluices because the factors such as local booster cause hypervelocity, the current (water velocity V1) that surpass normal flow can make deflecting force N increase, when its with valve plate gravity G when the moment of torsion of valve shaft o generation has the trend that valve plate is had be rotated counterclockwise, this device is in starting state.
3, the closed condition after the current hypervelocity
Such as Fig. 3, when water velocity continuation increase (V2), valve plate will be rotated counterclockwise along valve shaft o, and the eccentric weep hole on the valve plate also makes deflecting force N increase rapidly, until valve plate is thoroughly closed.The upper lower limb of valve plate is fixed by two retainer ring spacings respectively.
After " booster automatic water flow hypervelocity drag device " closed, current can only flow through from the eccentric weep hole of valve plate, increase so that the local head loss of aqueduct is huge, thereby ultrarapid flow is effectively controlled.
4, " booster automatic water flow hypervelocity drag device " automatically resets
When pipeline water flow stop (current let out to the greatest extent or this device before and after the maintenance valve closings), the deflecting force N that current produce is reduced to 0, valve plate can be under gravity G effect turns clockwise along valve shaft o and is reset to normal state, is located by locating stud, restPoses.
Its advantage is:
This device is controlled the too fast machinery of water velocity for being fit to be applied to rising of aqueduct, to utilize hydraulics and lever principle, by high-velocity flow the valve plate of local perk is produced lateral force, start and close valve plate, reach the effect of the local resistance that increases water transport pipeline.This device had both been avoided the harm that produces the high speed earial drainage when the situation such as pipeline burst occurs, and it is low also to have when normal water delivery a water resistance, economical and energy saving, technique is ingenious, startups is rapid, automatically reset, overall structure simply, the characteristics of compact and reasonable.
Description of drawings
Fig. 1 is the structural representation of the utility model when normal water delivery state.
Fig. 2 is the structural representation of the utility model when current hypervelocity starting state.
Fig. 3 is the structural representation of the utility model when the rear closed condition of current hypervelocity.
Fig. 4 is out the plan view of the valve plate of a weep hole.
Fig. 5 is out the plan view of the valve plate of a plurality of weep holes.
Fig. 6 is the assembly structure schematic representation of valve body and valve shaft.
Fig. 7 is the plan view of valve body.
Fig. 8 is the partial enlarged drawing of K section among Fig. 1.
Embodiment
Booster automatic water flow hypervelocity drag device comprises valve body 1, valve plate 2 and valve shaft 3.
The two ends of valve shaft 3 are installed in two installation rooms 6.
Be fixed with respectively the first back-up ring 4 and the second back-up ring 5 in the position that valve body 1 inwall is set up and down, described two back-up rings and valve plate about in the of 2 marginal position cooperatively interact, when valve plate 2 was closed, described two back-up rings were fixing with valve plate 2, and close valve body 1 inwall.
The desired location that is positioned at valve plate body 11 down either side at valve body 1 inwall is symmetrically fixed with respectively locating stud 10, when water velocity normal or without flowing water by the time, valve plate body 11 is supported on two locating studs 10, makes valve plate body 11 maintenance levels.
Described weep hole 7 is circular, and water is flow through.
The folded acute angle angle A of the elongation line of described seesaw 9 and valve plate body 11 is 7 degree.
Described valve plate 2 is oval, and when valve plate 2 was closed, the edge of valve plate 2 matched with the inner wall shape of pipeline 12.
Claims (4)
1. booster automatic water flow hypervelocity drag device comprises valve body (1), valve plate (2) and valve shaft (3); It is characterized in that:
Valve body (1) is the cylindrical shape of both ends open, be wholely set respectively the installation room (6) of protrusion at valve body (1) both sides desired location, two installation rooms (6) are symmetrical with radius, the line of two installation rooms (6) is positioned at the below of valve body (1) transverse diameter, is the installation room (6) at the upper eccentric setting of valve body (1);
The two ends of valve shaft (3) are installed in two installation rooms (6);
Valve plate (2) comprises valve plate body (11) and the seesaw (9) of integrative-structure;
Valve plate body (11) is installed on the valve shaft (3) by at least two axle beds (8) that are fixed on the valve plate body (11), the edge of valve plate body (11) upstream face is wholely set the seesaw (9) that is upturned, and offers at least one weep hole (7) on the semiellipse of a side relative with seesaw (9) part on the valve plate body (11);
Be fixed with respectively up and down the first back-up ring (4) and the second back-up ring (5) at valve body (1) inwall, the up and down marginal position of described two back-up rings and valve plate (2) cooperatively interacts;
Be positioned at valve plate body (11) down either side at valve body (1) inwall and be symmetrically fixed with respectively locating stud (10).
2. booster automatic water flow according to claim 1 hypervelocity drag device, it is characterized in that: described weep hole (7) is for circular or oval.
3. booster automatic water flow according to claim 1 and 2 hypervelocity drag device is characterized in that: the folded acute angle angle A of described seesaw (9) and the elongation line of valve plate body (11) is 7 degree.
4. booster automatic water flow according to claim 3 hypervelocity drag device, it is characterized in that: described valve plate (2) is for oval.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220491600 CN202768977U (en) | 2012-09-25 | 2012-09-25 | Tube rupture automatic water flow overspeed drag device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220491600 CN202768977U (en) | 2012-09-25 | 2012-09-25 | Tube rupture automatic water flow overspeed drag device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202768977U true CN202768977U (en) | 2013-03-06 |
Family
ID=47775552
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220491600 Expired - Lifetime CN202768977U (en) | 2012-09-25 | 2012-09-25 | Tube rupture automatic water flow overspeed drag device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202768977U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102840367A (en) * | 2012-09-25 | 2012-12-26 | 于乃富 | Booster automatic waterflow overspeed resistance increasing device |
| CN105697836A (en) * | 2016-03-23 | 2016-06-22 | 程芳茂 | Device for automatically closing gas pipelines before gushing |
| CN110206521A (en) * | 2019-05-31 | 2019-09-06 | 山东科技大学 | A kind of water filling segmentation of coal seam long drilled holes, which is opened, splits device and method |
-
2012
- 2012-09-25 CN CN 201220491600 patent/CN202768977U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102840367A (en) * | 2012-09-25 | 2012-12-26 | 于乃富 | Booster automatic waterflow overspeed resistance increasing device |
| CN105697836A (en) * | 2016-03-23 | 2016-06-22 | 程芳茂 | Device for automatically closing gas pipelines before gushing |
| CN105697836B (en) * | 2016-03-23 | 2019-01-15 | 程芳茂 | Gas pipeline self closing device to be gushed |
| CN110206521A (en) * | 2019-05-31 | 2019-09-06 | 山东科技大学 | A kind of water filling segmentation of coal seam long drilled holes, which is opened, splits device and method |
| CN110206521B (en) * | 2019-05-31 | 2021-11-23 | 山东科技大学 | Coal seam long-drill-hole water injection sectional crack initiation device and method |
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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: 20130306 Effective date of abandoning: 20140507 |
|
| RGAV | Abandon patent right to avoid regrant |