CN201513667U - Annular pipe decompression device - Google Patents
Annular pipe decompression device Download PDFInfo
- Publication number
- CN201513667U CN201513667U CN2009201975198U CN200920197519U CN201513667U CN 201513667 U CN201513667 U CN 201513667U CN 2009201975198 U CN2009201975198 U CN 2009201975198U CN 200920197519 U CN200920197519 U CN 200920197519U CN 201513667 U CN201513667 U CN 201513667U
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- China
- Prior art keywords
- endless tube
- decompression
- ring pipe
- pipe
- described decompression
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- Expired - Fee Related
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Abstract
The utility model relates to an annular pipe decompression device, which has the advantages of low cost, high reliability and low maintenance cost. The annular pipe decompression device is characterized in that decompression device includes a group of decompression annular pipe with a spiral structure; and the decompression annular pipe has a water inlet at one end and a water outlet at the other end. The annular pipe decompression device can be used for hydraulic and hydroelectric project, building water supply project, fire fighting project, drinking water project and so on.
Description
Technical field
The utility model relates to a kind of ring pipe decompressor, is applicable to Hydraulic and Hydro-Power Engineering, building water supply engineering, fire-fighting system engineering or potable water system engineering etc.
Background technique
In the water system of water power plant, occur because pressure of supply water is higher through regular meeting, the required pressure of user is lower, and the situation that adopts the gravity flow decompression to supply water.Decompressor at present commonly used is a reduction valve, and its existence costs an arm and a leg, and the shortcoming that rate of fault is higher has increased the repair and maintenance expense in power station, and also the safe and stable operation to the power station unit brings adverse influence.
In addition, in engineerings such as building water supply engineering, fire-fighting system engineering or potable water system engineering, normal reduction valve or the restricting orifice of adopting of arm decompression, reduction valve also exists and costs an arm and a leg, the shortcoming that rate of fault is higher, the restricting orifice existence is easily stopped up, noise is big, and downstream line is the shortcoming of cavitation erosion easily.
Summary of the invention
The technical problems to be solved in the utility model is: a kind of cheap, reliability is higher, the repair and maintenance expense is lower ring pipe decompressor is provided.
The technological scheme that the utility model adopted is: the ring pipe decompressor, it is characterized in that this decompressor is the decompression endless tube of one group of helix structure, and one of endless tube of decompression is a water intake, the other end is a water outlet.
Described decompression endless tube is round screw thread structure or round rectangle helix structure.
Described decompression endless tube is a helical element; Can also be that several helical elements are connected in parallel or several helical elements are connected in series.
The bending radius of described decompression endless tube is greater than 5 times of outer diameter tube.
The material of described decompression endless tube can be divided into stainless-steel seamless pipe, stainless steel welded steel pipe, seamless steel pipe, welded steel pipe or copper pipe according to the difference of the pressure rating of decompression endless tube, is spliced by many pipelines.
The beneficial effects of the utility model are: this decompressor can be selected round screw thread endless tube or round rectangle spiral endless tube according to different decompression requirements; Can select monomer decompression endless tube, the series connection of the in parallel or two or more monomer decompression of two or more monomer decompression endless tube endless tube on the structure, to adapt to the restriction of different water flow and spatial arrangement, this decompressor maximum can make the pressure of 10.0MPa reduce to below the 1.0MPa.In addition, the utility model is cheap, reliability is higher, the repair and maintenance expense is lower, can save cost and improve economic beneficial effect for enterprise.
Description of drawings
Fig. 1 is the plan view of round screw thread decompression endless tube in the utility model.
Fig. 2 is the plan view of round rectangle spiral decompression endless tube in the utility model.
Fig. 3 is the utility model embodiment 1 a plan view.
Fig. 4 is the utility model embodiment 2 a plan view.
Fig. 5 is the utility model embodiment 3 a plan view.
Embodiment
Embodiment 1:
As shown in Figure 3, present embodiment has only decompression endless tube 3 monomers of a helix structure, has five loops, and one of endless tube of decompression is a water intake 1, and the other end is a water outlet 2.When pressure water flows out from water outlet 2 through the tube wall of water intake 1 along decompression endless tube 3, to produce local head loss and frictional head loss, for a definite flow, when pipeline diameter reduces to increase with pipeline length, loss of head will increase, and the generation of this loss of head is a kind of process of decompression.According to different decompression requirements, the decompression endless tube adopts round screw thread structure and round rectangle helix structure, and the situation for low discharge, low Pressure reducing ratio preferentially adopts the round screw thread structure, as shown in Figure 1.For the situation of big flow, high Pressure reducing ratio, preferentially adopt the round rectangle helix structure, as shown in Figure 2.
Embodiment 2:
As shown in Figure 4, when water supply flow was big, decompression endless tube 3 can also adopt two or more decompression endless tube monomers to be connected in parallel, and each pressure-reducing ring pipe has identical the endless tube size and the number of turns, so that under same effect of easing stress, flow doubles or many times.Two water intakes 1 link to each other with same water inlet manifold among Fig. 4, and same, two water outlets 2 converge to again in the same outfall sewer.
Embodiment 3:
As shown in Figure 5, under same flow, if to the width (W) of the decompressor arrangement constraints of having living space, then can adopt the monomer series-connected mode of two or more decompression endless tubes 3, each decompression endless tube has identical the endless tube size and the number of turns, so that under same flow, effect of easing stress doubles or many times.The water outlet 2 of a decompression endless tube is connected by the water intake 1 of joint 4 with another decompression endless tube among Fig. 5.
Above-mentioned 3 kinds of embodiments are as follows to the size and the specification requirement of decompression endless tube:
1) number of turns and the size of decompression endless tube (comprise d, r, L
1) can require according to different decompressions to be provided with.The endless tube spacing requires to determine according to the endless tube processing technology of corresponding size.
2) the bending radius r of decompression endless tube should be greater than 5 times of pipeline outside diameter d.
3) the pipeline wall thickness of decompression endless tube is selected according to the pressure-bearing size, consider that simultaneously the thick reduction of pipeline curved rear wall is less than 12%, should select the bigger stainless-steel seamless pipe of wall thickness to make the decompression endless tube, when design pressure satisfies, also can adopt stainless steel welded steel pipe, seamless steel pipe, welded steel pipe, copper pipe to make.
Claims (8)
1. ring pipe decompressor, it is characterized in that: this decompressor is the decompression endless tube (3) of one group of helix structure, and one of endless tube of decompression is water intake (1), and the other end is water outlet (2).
2. ring pipe decompressor according to claim 1 is characterized in that: described decompression endless tube (3) is round screw thread structure or round rectangle helix structure.
3. ring pipe decompressor according to claim 1 and 2 is characterized in that: described decompression endless tube (3) is a helical element.
4. ring pipe decompressor according to claim 1 and 2 is characterized in that: described decompression endless tube (3) is connected in parallel for several helical elements.
5. ring pipe decompressor according to claim 1 and 2 is characterized in that: described decompression endless tube (3) is connected in series for several helical elements.
6. ring pipe decompressor according to claim 1 and 2 is characterized in that: the bending radius r of described decompression endless tube (3) is greater than 5 times of outer diameter tube d.
7. ring pipe decompressor according to claim 1 is characterized in that: the material of described decompression endless tube (3) is stainless-steel seamless pipe, stainless steel welded steel pipe, seamless steel pipe, welded steel pipe or copper pipe.
8. ring pipe decompressor according to claim 1 is characterized in that: described decompression endless tube (3) is that many pipeline weldings or high pressure joint pattern are formed by connecting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201975198U CN201513667U (en) | 2009-09-25 | 2009-09-25 | Annular pipe decompression device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201975198U CN201513667U (en) | 2009-09-25 | 2009-09-25 | Annular pipe decompression device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201513667U true CN201513667U (en) | 2010-06-23 |
Family
ID=42485078
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201975198U Expired - Fee Related CN201513667U (en) | 2009-09-25 | 2009-09-25 | Annular pipe decompression device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201513667U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104948224A (en) * | 2015-07-03 | 2015-09-30 | 北京科技大学 | Device for increasing resistance and regulating pressure in filling slurry pipeline transportation |
| CN106438163A (en) * | 2016-11-03 | 2017-02-22 | 国家电网公司 | Spindle seal pressure steel pipe side water supply pipeline of water turbine unit |
| CN112197026A (en) * | 2020-12-04 | 2021-01-08 | 沈阳中钛装备制造有限公司 | Gas reducing valve and 3D printing manufacturing method thereof |
-
2009
- 2009-09-25 CN CN2009201975198U patent/CN201513667U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104948224A (en) * | 2015-07-03 | 2015-09-30 | 北京科技大学 | Device for increasing resistance and regulating pressure in filling slurry pipeline transportation |
| CN106438163A (en) * | 2016-11-03 | 2017-02-22 | 国家电网公司 | Spindle seal pressure steel pipe side water supply pipeline of water turbine unit |
| CN112197026A (en) * | 2020-12-04 | 2021-01-08 | 沈阳中钛装备制造有限公司 | Gas reducing valve and 3D printing manufacturing method thereof |
| CN112197026B (en) * | 2020-12-04 | 2021-02-26 | 沈阳中钛装备制造有限公司 | Gas reducing valve and 3D printing manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100623 Termination date: 20180925 |