CN101672409A - Device and method for protecting water hammer - Google Patents
Device and method for protecting water hammer Download PDFInfo
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- CN101672409A CN101672409A CN200910272432A CN200910272432A CN101672409A CN 101672409 A CN101672409 A CN 101672409A CN 200910272432 A CN200910272432 A CN 200910272432A CN 200910272432 A CN200910272432 A CN 200910272432A CN 101672409 A CN101672409 A CN 101672409A
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- pipeline
- water hammer
- vortex cavity
- leads
- protecting
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Abstract
The invention relates to a device and a method for protecting a water hammer. The device is characterized by comprising a vortex cavity and a first pipeline, wherein the first pipeline leads to the downstream position through the periphery of the vortex cavity, and a second pipeline which leads to the upstream position is arranged in the axial direction of the vortex cavity. The key points of themethod are as follows: 1. the device for protecting the water hammer is provided with the vortex cavity and the first pipeline which leads to the downstream position through the periphery of the vortex cavity, and the second pipeline which leads to the upstream position and which is arranged in the axial direction of the vortex cavity; 2. the second pipeline is communicated with an upstream pipeline; and 3. the first pipeline is communicated with a downstream pipeline. The device for protecting the water hammer has the advantages of simple structure, no need of external force, safety, reliability, no moving elements, no need of maintenance and low cost. The invention solves the defect of low reliability of the operating equipment in the traditional process of protecting the water hammer.
Description
Technical field
The present invention relates to a kind of device and method that is used for protecting water hammer.
Background technique
Fluid delivery system need be established check valve for preventing to flow backwards when the kinetic pump hang-up, but since check valve close the unexpected rising that must cause downstream pressure, cause the pressure oscillation of pipe-line system, if amplitude causes water hammer accident such as booster, damage than senior general.
Protecting water hammer measure commonly used comprises Slow Close check valve, air valve, water-hammer arrester and surge tower etc. on pipeline at present, and the Slow Close check valve is to reduce the pressure wave amplitude by prolonging closing valve time; Air valve (suction valve and outlet valve) is variation tonifying Qi and the exhaust in pipeline according to manifold pressure, surge tower then changes moisturizing or draining in pipeline according to the pipe internal pressure, the water column separation takes place in dual mode all prevents to manage to a certain extent and make the reduction water hammer pressure up; When water-hammer arrester takes place at high pressure, can be by opening drain valve sluicing step-down.The said equipment needs periodic maintenance maintenance, in case that stop is done is malfunctioning, and price is higher, in use has certain defective.Complicated as Slow Close check valve structure, need supporting hydraulic control or gas control device, weight Slow Close check valve is had relatively high expectations to arrangement space; Air valve is easy for installation, but malfunctioning easily, noise is big, and the gas that benefit is gone into is as can not in time getting rid of and will impacting the pipeline fluidised form.
Summary of the invention
The object of the present invention is to provide a kind of device that is used for protecting water hammer, it can overcome the low defective of operational outfit reliability in the existing protecting water hammer.
Another object of the present invention is to provide a kind of method that is used for protecting water hammer, it can overcome the low defective of method reliability of existing protecting water hammer.
The technological scheme that realizes the object of the invention is: a kind of device that is used for protecting water hammer is characterized in that: have vortex cavity, and first pipeline that leads to the downstream through the periphery of vortex cavity, second pipeline that leads to the upstream axially having of this vortex cavity.
And, first pipeline and vortex cavity peripheral tangent.
And first pipeline is tapered.
And second pipeline is from axially being connected with the middle part of vortex cavity.
Another technological scheme that realizes the object of the invention is:. a kind of method of protecting water hammer is characterized in that:
The device of employed protecting water hammer has vortex cavity, and first pipeline that leads to the downstream through the periphery of vortex cavity, second pipeline that leads to the upstream axially having of this vortex cavity;
And, described second pipeline is connected with upstream;
And, described first pipeline is connected with the downstream pipeline.
And, be orderly connected with gate valve and water pump in the upstream of second pipeline.
Advantage of the present invention is: this device has vortex cavity, and first pipeline that leads to the downstream through the periphery of vortex cavity, second pipeline that leads to the upstream axially having of this vortex cavity.Resistance is less during positive flow, and flow is normally carried; During reverse flow, produce whirlpool, stopped 80%～70% reverse flow at eddy current body place.Protected water pump assembly on the one hand,, cut down water hammer and boost, reached the protection purpose on the other hand because 20～30% reverse flow can be back to the upstream by the eddy current cavity.This device has simple in structure, movement-less part, freedom from repairs than conventional check valve; Safe and reliable to operation, need not outer power operation, advantage such as cheap; Its structural feature and working principle have determined it not only to possess good protecting water hammer function, and have prevented waste that causes because of sluicing in the conventional water hammer elimination process water resources and the energy etc.
Constitute by (1) tangential pipe (2) axial pipe (3) chamber.The described first pipeline connecting pump tube road system downstream, the second pipeline connecting pump tube road system upstream.Forward (upstream) flowing water stream flows into from second pipeline 1, and first pipeline 3 flows out, and the short resistance little (as Fig. 5) of streamline is equivalent to 90 ° of elbows in the system, to carrying influence less; Current flow into from first pipeline 3 and are flowed out by axial pipe through vortex cavity during reverse flow, resistance big (as Fig. 6), oppositely resistance can be more than 40 times of positive flow resistance, has very big impedance when accident takes place suddenly, can play the check valve effect that stops reverse flow.But because this device is actually a kind of porose structure, can not block current fully, because the effect of impedance, have only small amount of water to return the water hammer energy that the upstream is taken away concentrations automatically, thereby need not under the situation of external force, utilizing the current rule to weaken water hammer pressure naturally, at this moment, the follow procedure closing gate valve is blocked current fully again, finishes the operation behind the pumping accident.
Protecting water hammer apparatus structure in this invention is simple, need not external force, and is safe and reliable, movement-less part, and freedom from repairs, price is low.Solved the low defective of operational outfit reliability in traditional protecting water hammer.
Another advantage of this invention is in protection process, and the anhydrous slime flux of transporting system goes out, system layout and easy to maintenance, the waste of the No Assets and the energy.
Description of drawings
Fig. 1 is the integrally-built stereogram of signal the present invention.
Fig. 2 is that the A of Fig. 1 is to view.
Fig. 3 is that the B of Fig. 1 is to view.
Fig. 4 is the layout plan of a kind of Placement of signal piping of the present invention.
Fig. 5 is the schematic diagram of signal effect of the present invention.
Fig. 6 is another schematic diagram of signal effect of the present invention.
Embodiment
The invention will be further described below in conjunction with accompanying drawing.With reference to Fig. 1～Fig. 6, technological scheme of the present invention is: a kind of device that is used for protecting water hammer, it has vortex cavity 2, and first pipeline 3 that leads to the downstream through the periphery of vortex cavity 2, second pipeline 1 that leads to the upstream axially having of this vortex cavity 2.
Further technological scheme can be: first pipeline 3 is peripheral tangent with vortex cavity 2.
And first pipeline 3 is preferably tapered.
Suggestion, second pipeline 1 is from axially being connected with the middle part of vortex cavity 2.
Another technological scheme of the present invention is: a kind of method of protecting water hammer, the device of the employed protecting water hammer of this method has vortex cavity 2, and first pipeline 3 that leads to the downstream through the periphery of vortex cavity 2, second pipeline 1 that leads to the upstream axially having of this vortex cavity 2;
And, described second pipeline 1 is connected with upstream;
And, described first pipeline 3 is connected with the downstream pipeline.
And, be orderly connected with gate valve 5 and water pump 4 (as Fig. 4) in the upstream of second pipeline.Usually, in pipeline, can also be provided with high water level pond 6 or water tower.
Claims (6)
1. device that is used for protecting water hammer is characterized in that: have vortex cavity, and first pipeline that leads to the downstream through the periphery of vortex cavity, second pipeline that leads to the upstream axially having of this vortex cavity.
2. the device that is used for protecting water hammer according to claim 1 is characterized in that: first pipeline and vortex cavity peripheral tangent.
3. the device that is used for protecting water hammer according to claim 1 and 2 is characterized in that: first pipeline is tapered.
4. the device that is used for protecting water hammer according to claim 1 and 2 is characterized in that: second pipeline is from axially being connected with the middle part of vortex cavity.
5. the method for a protecting water hammer is characterized in that:
5.1 the device of employed protecting water hammer has vortex cavity, and first pipeline that leads to the downstream through the periphery of vortex cavity, second pipeline that leads to the upstream axially having of this vortex cavity;
5.2 described second pipeline is connected with upstream;
5.3 described first pipeline is connected with the downstream pipeline.
6. the method for protecting water hammer according to claim 5 is characterized in that: be orderly connected with gate valve and water pump in the upstream of second pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910272432A CN101672409A (en) | 2009-10-16 | 2009-10-16 | Device and method for protecting water hammer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910272432A CN101672409A (en) | 2009-10-16 | 2009-10-16 | Device and method for protecting water hammer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101672409A true CN101672409A (en) | 2010-03-17 |
Family
ID=42019759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910272432A Pending CN101672409A (en) | 2009-10-16 | 2009-10-16 | Device and method for protecting water hammer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101672409A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113586836A (en) * | 2021-07-28 | 2021-11-02 | 中国水利水电科学研究院 | Water hammer eliminating device |
-
2009
- 2009-10-16 CN CN200910272432A patent/CN101672409A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113586836A (en) * | 2021-07-28 | 2021-11-02 | 中国水利水电科学研究院 | Water hammer eliminating device |
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Open date: 20100317 |