CN2092650U - Compounded high pressure flexible metal tubing - Google Patents
Compounded high pressure flexible metal tubing Download PDFInfo
- Publication number
- CN2092650U CN2092650U CN 91216522 CN91216522U CN2092650U CN 2092650 U CN2092650 U CN 2092650U CN 91216522 CN91216522 CN 91216522 CN 91216522 U CN91216522 U CN 91216522U CN 2092650 U CN2092650 U CN 2092650U
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- China
- Prior art keywords
- pressure
- metal
- cavity
- high pressure
- resorption
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- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The utility model provides a compounded high pressure flexible metal pipe, characterized in that a plurality of metal corrugated pipes are connected in parallel on the connecting openings of the lower cavities of a pair of pressure accumulation cavities. A metal net sleeve is sheathed on the outer wall of the metal corrugated pipe. The upper cavity of the pressure accumulation cavity is connected with a connecting joint. Thereby, compared with a present unitary flexible metal pipe with the equivalent flow flux, the operating pressure of the compounded high pressure flexible metal pipe can be greatly enhanced, in order to meet the requirements of the modern engineering technology of high pressure.
Description
The utility model belongs to the accessory in the high pressure engineering technology, is specifically related to a kind of metallic hose.
Metallic hose has with the same flexible of sebific duct; Simultaneously, have high temperature resistant, low temperature resistant, ageing-resistant and corrosion resistant performance again, it is widely used in industrial departments such as machine-building, petrochemical industry, space flight, aviation, shipbuilding and building as the compensation fitting of length and angle.
At present, used metallic hose is by the single piece of metal bellows, and single or multiple lift metal net and two joint three parts constitute, and the mode with welding, mechanical clamping or two kinds of couplings between the three connects.Wherein, bellows is the body of metallic hose.The working pressure of its caliber and metallic hose has following relation:
P＝K·f·n·σ
b·cosα· (d
2)/(D
2)
In the formula: P---be the working pressure of metallic hose; K---constant (being 1/3 or 1/4); F---correction factor; N---the wire number that the metal net is total; σ
b---tensile strength wiry; α---the angle of weave of metal net; D---diameter wiry; The average diameter of D---metal bellows (D=(D
Outward+ D
In)/2).
By following formula as can be known: the working pressure of metallic hose and the diameter of bellows square are inversely proportional to, and further find out from figure (1).The more little working pressure of the diameter of bellows is high more; Otherwise the big more working pressure of diameter is more little.Along with development of modern industry, some department requires the metallic hose of required discharge value, and its working pressure is considerably beyond the pressure limit value of existing specification product.For example: selecting inside nominal diameter for use is the metallic hose of Dg50mm, requires under 300 ℃ temperature, and working pressure can reach 100kg/cm
2Yet inside nominal diameter is that the working pressure of the metallic hose of Dg50mm is 60kg/cm as can be known by figure (1)
2Thereby the performance of existing metallic hose product can not satisfy the needs of some industrial department.
The purpose of this utility model is to provide a kind of on the basis that keeps former flow.The composite metal flexible pipe that working pressure can be increased substantially is to satisfy the needs of high pressure engineering technology.
Be achieved in that on the basis of former single entry metallic hose, change the structure between bellows and the joint.Be that between increases the pressure accumulation chamber of being made up of epicoele and cavity of resorption.The cavity of resorption in pressure accumulation chamber has a plurality of connection mouths, can many bellowss in parallel.By shunting, the interflow constitutes combined type high-pressure metal flexible pipe thus again with fluid.
Advantage of the present utility model: on the basis of former single entry metallic hose manufacture process, only need set up small part equipment.Do not change under the condition of former manufacturing process and make combined type high-pressure metal flexible pipe.With simple and effectively, and economic mode, improved the working pressure of metallic hose significantly.
The utility model is described in further detail below in conjunction with drawings and Examples.
Figure (1) is the inside nominal diameter of existing different size metallic hose product and the graph of a relation between the working pressure;
Figure (2) is the plan view of the utility model combined type high-pressure metal flexible pipe;
Figure (3) a is the four interface pressure accumulation chamber sectional drawings that the utility model is used;
B is the utility model figure (3) a pressure accumulation chamber cavity of resorption connection mouth distribution map;
Figure (4) a is the five interface pressure accumulation chamber cavity of resorption sectional drawings that the utility model is used;
B is the distribution map of the utility model figure (4) a pressure accumulation chamber cavity of resorption connection mouth.
Figure shown in (2) is to be D by two existing inside nominal diameters
g15mm, working pressure is 210kg/cm
2Seam is arranged or does not have a seam steel bellows, it is D that the discharge value that metal net, pressure accumulation chamber, joint are formed is equivalent to inside nominal diameter
g20mm.Compression resistance can reach 210kg/cm
2Combined type high-pressure metal flexible pipe, its structure is: two outer walls are with metal bellows 3 arrangements parallel to each other of metal net.The two ends of pipe link to each other with two connection mouths of cavity of resorption 2-2 in pressure accumulation chamber 2 respectively, and the epicoele 2-1 in pressure accumulation chamber is connected with joint 1, also can overlap the metal net 4 of single or multiple lift in the periphery of the many bellowss 3 of parallel connection, strengthen and a shielding action to rise.
More than Placement between each parts can continue to use the mode of existing welding manner, mechanical clamping or both couplings.
Described pressure accumulation chamber 2, it is to be combined into one by epicoele 2-1 and cavity of resorption 2-2, and its epicoele has a connection mouth, and cavity of resorption has two connection mouths.
Figure (3) a, b are the pressure accumulation chambeies 2 that cavity of resorption has four connection mouths, and its epicoele 2-1 links to each other with joint 1, and cavity of resorption 2-2 and four inside nominal diameters are D
g25mm, compression resistance are 100kg/cm
2, outer wall has the metal bellows 3 of metal net to connect, and single or multiple lift metal net 4 also can be overlapped again in many bellowss 3 peripheries in parallel, and constituting discharge value thus, to be equivalent to inside nominal diameter be Dg50mm, and compression resistance can reach 100kg/cm
2Combined type high-pressure metal flexible pipe.
Figure (4) a, b are the pressure accumulation chambeies 2 that cavity of resorption has five connection mouths, and its epicoele 2-1 links to each other with joint 1.Cavity of resorption 2-2 and five inside nominal diameters are Dg15mm, and compression resistance is 230kg/cm
2, outer wall has the metal bellows 3 of metal net to connect, and single or multiple lift metal net 4 also can be overlapped again in many bellowss 3 peripheries in parallel, and constituting discharge value thus, to be equivalent to inside nominal diameter be Dg32mm, and compression resistance can reach 230kg/cm
2Combined type high-pressure metal flexible pipe.
The utility model is not limited to above-mentioned a few example, can be by required discharge value and compression resistance different, design the pressure accumulation chamber of different size, to make the combined type high-pressure metal flexible pipe series product of different size.
Claims (1)
1, a kind of combined type high-pressure metal flexible pipe of forming by metallic hose 3, metal net 4, joint 1, it is characterized in that: have more than 3 arrangement parallel to each other of metal bellows of metal net, the two ends of pipe are parallel to respectively on the cavity of resorption 2-2 connection mouth in pressure accumulation chamber 2, the epicoele in pressure accumulation chamber links to each other with joint 1, also can overlap the metal net 4 of single or multiple lift in the periphery of the many metal bellowss 3 of parallel connection.
Described pressure accumulation chamber 2 is combined into one by epicoele 2-1 and cavity of resorption 2-2, and its epicoele has a connection mouth.Cavity of resorption has a plurality of connection mouths, and the number of connection mouth equates with the number of bellows 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91216522 CN2092650U (en) | 1991-06-24 | 1991-06-24 | Compounded high pressure flexible metal tubing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91216522 CN2092650U (en) | 1991-06-24 | 1991-06-24 | Compounded high pressure flexible metal tubing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2092650U true CN2092650U (en) | 1992-01-08 |
Family
ID=4924402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91216522 Withdrawn CN2092650U (en) | 1991-06-24 | 1991-06-24 | Compounded high pressure flexible metal tubing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2092650U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107606338A (en) * | 2017-09-04 | 2018-01-19 | 无锡市永兴金属软管有限公司 | A kind of metal hose based on flow detection |
-
1991
- 1991-06-24 CN CN 91216522 patent/CN2092650U/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107606338A (en) * | 2017-09-04 | 2018-01-19 | 无锡市永兴金属软管有限公司 | A kind of metal hose based on flow detection |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |