CN202252397U - Light metal tube with high ring stiffness - Google Patents
Light metal tube with high ring stiffness Download PDFInfo
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- CN202252397U CN202252397U CN2011204171218U CN201120417121U CN202252397U CN 202252397 U CN202252397 U CN 202252397U CN 2011204171218 U CN2011204171218 U CN 2011204171218U CN 201120417121 U CN201120417121 U CN 201120417121U CN 202252397 U CN202252397 U CN 202252397U
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- Prior art keywords
- strengthening rib
- reinforcing ribs
- wall
- tubing
- tube
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Abstract
The utility model relates to a light metal tube with high ring stiffness, in particular to a light metal tube with high ring stiffness which is used for pumping and discharging gas of a coal mine. The light metal tube comprises an inner wall, an outer wall and reinforcing ribs between the inner wall and the outer wall. An inner anti-corrosion layer is arranged at the inner side of the inner wall; and an outer anti-corrosion layer is arranged at the outside of the outer wall. The reinforcing ribs are transverse reinforcing ribs which are distributed compactly or at intervals to be vertical to the axial line of the tube; the reinforcing ribs comprise the transverse reinforcing ribs which are arranged to be vertical to the axial line of the tube and lengthways reinforcing ribs which are arranged among the transverse reinforcing ribs and arranged compactly or at intervals to be parallel with the axial line of the tube; the reinforcing ribs are spiral reinforcing ribs arranged compactly or at intervals in a spiral shape; or the reinforcing ribs comprise lengthways reinforcing ribs which are arranged among the spiral reinforcing ribs. The inner anti-corrosion layer and the outer anti-corrosion layer are the stainless steel layers or flame-retardant anti-static plastic layers. The tube is light in weight per unit length as the tube is only about 30%-50% by weight of normal steel tubes. The light metal tube with high ring stiffness, disclosed by the utility model, has the advantages of good fireproof, high-temperature resistant and anti-static performances, rational tube structure and good capability of resisting to negative pressure.
Description
Technical field
The utility model relates to a kind of metal pipe, is mainly used in ventilation, the draining of the conveying of liquid or gas medium, particularly tunnel or mine, relates in particular to the lightweight high ring rigidity metal pipe that a kind of coal mine gas pump drainage is used.
Background technique
In recent years; Along with the continuous exploitation in colliery, the continuous extension of the pit mining degree of depth, the gas emission in mine, particularly exploiting field increases to be accelerated; Simple ventilation can not be dealt with problems, and gas exhaust is being brought into play more and more important effect as the effective means of gas control.
At present, the pipeline of pump drainage gas is generally selected steel pipe, cast iron tube or plastic tube for use.But steel pipe, cast iron tube are prone to be corroded in moist, the dark environment of mine, cause working life short, and because of unit weight is big, cause the labor intensity that in the space-constrained mine, is difficult for installing, constructing big, so do not accepted by the colliery.
Plastic tube is because the insufficient strength of its material, and that easy quilt is taken out is flat, take out flat or take out brokenly, strengthen wall thickness bring again weight excessive, install and use inconvenience, disposable input expense is higher, is difficult for being accepted by the client.Though the plastic tube of many material modifications, process modification is arranged in the market, can reduce wall thickness a little, plastics are after all in fire prevention, exist distinct disadvantage aspect high temperature resistant.MT 181-88 " underground mine use plastic tube Safety performance inspection specification " has stipulated the alcohol blast burner combustion requirements of tubing: the arithmetic mean value of the flaming combustion time of (1) 6 sample should be greater than 3s, and the flaming combustion time of wherein any sample should be greater than 10s; The arithmetic mean value of the flameless combustion time of 6 samples should be greater than 20s, and the flameless combustion time of wherein any sample should be greater than 60s.(2) arithmetic mean value of the inside and outside wall surface resistance of gas extraction pipe should be greater than 1.0 * 106 Ω.Though the Security of plastic tube still makes popular feeling surplus throb with fear so.
So market expects that a kind of novel tubing is to overcome the deficiency of above-mentioned existing technology.
The model utility content
The purpose of the utility model is the above-mentioned defective to the existing technology existence, a kind of lightweight high ring rigidity metal pipe of proposition.This metal pipe is composite structured, and unit weight is light, has only about the 30%-50% of common steel tube; Has good fire prevention, high temperature resistant, anti-static electricity property; Pipe structure is reasonable, has good anti-negative pressure ability.
The utility model adopts following technological scheme:
A kind of lightweight high ring rigidity metal pipe comprises the strengthening rib between inwall, outer wall and inwall, the outer wall.
Further technical measures are following:
The inboard of above-mentioned inwall is provided with interior anticorrosive coat.
The outside of above-mentioned outer wall is provided with external anti-corrosion layer.
Above-mentioned strengthening rib is horizontal strengthening rib tight with the tubing axis normal or that be intervally arranged.
Above-mentioned strengthening rib comprises the horizontal strengthening rib of arranging with the tubing axis normal, and is laid between the horizontal strengthening rib and vertical strengthening rib tight with the tubing parallel axes or that be intervally arranged.
Above-mentioned strengthening rib for shape in the shape of a spiral closely or the spiral strengthening rib that is intervally arranged.
Between above-mentioned helical strengthening rib, be provided with vertical strengthening rib tight with the tubing parallel axes or that be intervally arranged.
Above-mentioned interior anticorrosive coat is stainless steel lining or fire retardant antistatic plastic layer, and above-mentioned external anti-corrosion layer is stainless steel lining or fire retardant antistatic plastic layer.
The cross section of above-mentioned strengthening rib is solid or hollow circle, square, flute profile, semicircle, open-delta or ellipse.
According to the definition of international standard to the ring stiffness S of tubing: S=EI/D
3, the Young's modulus of E-material wherein, I-inertia distance, the average diameter of D-tubing.Can't change under the situation of diameter D that material has attribute elastic modulus E, tubing, the utility model to improve the ring stiffness S of tubing, reduces the weight of unit length through to the change by the moment of inertia I of shape decision simultaneously.
The utility model has solved the problem that metal pipe is prone to be corroded through to tubing inside and outside wall composite stainless steel layer or coating fire retardant antistatic plastic layer in moist, the dark environment of mine, perhaps possess good fire prevention, high temperature resistant, anti-static electricity property.
The utility model compared with prior art has following beneficial effect:
1, this tubing unit weight is light, has only about the 30%-50% of common steel tube.
2, this tubing is metal pipe, has solved the problem that metal pipe is prone to be corroded in moist, the dark environment of mine, has good fire prevention, high temperature resistant, anti-static electricity property.
3, this tubing is composite structured, rational in infrastructure, and ring stiffness is high, has good anti-negative pressure ability.
Below in conjunction with accompanying drawing the utility model is done further to set forth.
Description of drawings
Fig. 1 is the utility model embodiment 1 a structural representation, and figure left side one side of something is tubing wall complete section figure, the right half of schematic representation that removes outer wall for tubing.
Fig. 2 is the utility model embodiment 2 a structural representation, and figure left side one side of something is tubing wall complete section figure, the right half of schematic representation that removes outer wall for tubing.
Fig. 3 is the utility model embodiment 3 a structural representation, and figure left side one side of something is tubing wall complete section figure, the right half of schematic representation that removes outer wall for tubing.
Fig. 4 is the utility model embodiment 4 a structural representation, and figure left side one side of something is tubing wall complete section figure, the right half of schematic representation that removes outer wall for tubing.
Fig. 5 A is the utility model embodiment 5 a structural representation, and figure left side one side of something is tubing wall complete section figure, the right half of schematic representation that removes outer wall for tubing.
Fig. 5 B is the A-A portion sectional drawing of Fig. 5 A.
Fig. 5 C is the cross-sectional structure schematic representation of vertical strengthening rib 6 of B portion among Fig. 5 B, has showed several kinds of structures with B-1, B-2, B-3, B-4, B-5 respectively.
Fig. 6 is the utility model embodiment 6 a structural representation, and figure left side one side of something is tubing wall complete section figure, the right half of schematic representation that removes outer wall for tubing.
Fig. 7 is the utility model embodiment 7 a structural representation, and figure left side one side of something is tubing wall complete section figure, the right half of schematic representation that removes outer wall for tubing.
Fig. 8 to 12 shows the cross-sectional structure schematic representation of the strengthening rib of the utility model respectively.
Mark among the figure:
1, inwall 2, outer wall 3, horizontal strengthening rib
4, interior anticorrosive coat 5, external anti-corrosion layer 6, vertical strengthening rib
7, spiral strengthening rib H
1, the horizontal spacing H of strengthening rib
2, the vertical spacing of strengthening rib
H
3, the spiral strengthening rib spacing
Embodiment
Embodiment 1:
Referring to Fig. 1, a kind of lightweight high ring rigidity metal pipe comprises inwall 1, outer wall 2, horizontal strengthening rib 3 compositions.Laterally strengthening rib 3 is combined as a whole with inwall 1, outer wall 2, and laterally strengthening rib 3 increases with the tubing wall moment of inertia of the real wall of the rectangular ratio of cavity of inwall 1, outer wall 2 formation greatly, and laterally the cross section of strengthening rib 3 is a flute profile.Laterally strengthening rib 3 is horizontal strengthening rib tight with the tubing axis normal or that be intervally arranged, that is the spacing H of strengthening rib
1>=0.
The inside and outside wall of present embodiment tubing respectively is one deck; Tubing is not being had the specific properties requirement, or Environmental Conditions there is not under the situation of ad hoc requirement tubing wall employing straight carbon steel; Simple in structure, processing technology is simple; Under the prerequisite that does not reduce the tubing ring stiffness, can reduce the tubing unit weight significantly, and effectively reduce the processing amount of labour.
Embodiment 2:
Referring to Fig. 2, embodiment 2 is with embodiment 1 difference: the inboard of the inwall 1 of metal pipe is provided with interior anticorrosive coat 4, and interior anticorrosive coat 4 is stainless steel lining or fire retardant antistatic plastic layer.That is, be composited, perhaps apply the fire retardant antistatic plastic layer in the inboard of straight carbon steel inwall 1 by straight carbon steel inwall 1 and stainless steel lining.
The inwall of present embodiment tubing is a composite structure; Tubing there is being the specific properties requirement; Solve the problem that metal pipe is prone to be corroded during vapour, liquid such as pump drainage gas in moist, the dark environment of mine, or had good fire prevention, high temperature resistant, anti-static electricity property.
Embodiment 3:
Referring to Fig. 3, present embodiment and embodiment's 2 difference is: the outside of the outer wall 2 of metal pipe is provided with external anti-corrosion layer 5, and external anti-corrosion layer 5 is stainless steel lining or fire retardant antistatic plastic layer.That is, be composited, perhaps apply the fire retardant antistatic plastic layer in the outside of straight carbon steel outer wall 2 by straight carbon steel outer wall 2 and stainless steel lining.
Embodiment 4:
Referring to Fig. 4, present embodiment combines embodiment 2,3, that is: anticorrosive coat 4 in the inboard of the inwall 1 of metal pipe is provided with, and the outside of outer wall 2 is provided with external anti-corrosion layer 5, and concrete structure repeats no more because of describing in the foregoing description 2,3.
The inside and outside wall of present embodiment tubing is composite structure, has solved the problem that metal pipe is prone to be corroded comprehensively in moist, the dark environment of mine, or has had good fire prevention, high temperature resistant, anti-static electricity property.
Embodiment 5:
Referring to Fig. 5 A to 5C; Present embodiment and above-mentioned each embodiment's difference is: the strengthening rib of metal pipe comprises the horizontal strengthening rib 3 of arranging with the tubing axis normal; And be laid between the horizontal strengthening rib 3 and with the tubing parallel axes closely or the vertical strengthening rib 6 that is intervally arranged, that is the vertical spacing H of strengthening rib 6
2>=0.
Fig. 5 B has provided the cross-sectional figure of vertical strengthening rib 6 in tube wall.
B-1 among Fig. 5 C, B-2, B-3, B-4, B-5 have provided the cross section structure schematic representation of the strengthening rib 6 of the utility model metal pipe respectively.As the strengthening rib section of scheming B-1 is for semicircle, and the strengthening rib section of figure B-2 is open-delta (a ∧ shape), and the strengthening rib section of figure B-3 is a hollow rectangle, and the strengthening rib section of figure B-4 is hollow circle, and the strengthening rib section of figure B-5 is a hollow ellipse shape.The shape of above-mentioned strengthening rib section 6 can be solid shape, can be hollow shape also, be rule or misconduct.
Present embodiment tubing has horizontal strengthening rib 3, vertical strengthening rib 6, can satisfy simultaneously tubing laterally, the longitudinal stress requirement, under the situation that increases the tubing ring stiffness, the vertical tension that also increases tubing rises ability.
Embodiment 6:
Referring to Fig. 6, among this embodiment, the strengthening rib of metal pipe is the spiral strengthening rib 7 that distributes of shape in the shape of a spiral.This spiral strengthening rib 7 closely or be intervally arranged, that is the spacing H of spiral strengthening rib 7
3>=0.
The strengthening rib of present embodiment tubing is the shape continuous distributed in the shape of a spiral, can on processing technology, realize continuous processing, reduces the breakpoint processing worker of technology, saves time, waste of material.
Embodiment 7:
Referring to Fig. 7, this embodiment and embodiment's 6 difference is: between helical strengthening rib 7, be provided with vertical strengthening rib 6 tight with the tubing parallel axes or that be intervally arranged.The spacing H of vertical strengthening rib 6
2>=0.
Present embodiment tubing is provided with vertical strengthening rib between the spiral strengthening rib, can satisfy simultaneously tubing laterally, longitudinal stress, under the situation that increases the tubing ring stiffness, the vertical tension that also increases tubing rises ability.
Like Fig. 8,9,10,11,12, provided the cross section structure schematic representation of the strengthening rib 3,7 of the utility model metal pipe.Strengthening rib section like Fig. 8 is that strengthening rib section square, Fig. 9 is semicircle for strengthening rib section circular, Figure 10, and the strengthening rib section of Figure 11 is open-delta (a ∧ shape), and the strengthening rib section of Figure 12 is oval.Above-mentioned strengthening rib section shape can be solid shape, can be hollow shape also, be rule or misconduct.
This tubing can be processed into the size of suitable diameter and length according to the requirement of construction operation, in case of necessity, adopts the tubing connection technique that each tubing close-coupled is used together, to satisfy the demand of length.
Claims (9)
1. a lightweight high ring rigidity metal pipe is characterized in that: comprise the strengthening rib between inwall, outer wall and inwall, the outer wall.
2. according to the described metal pipe of claim 1, it is characterized in that: the inboard of described inwall is provided with interior anticorrosive coat.
3. according to claim 1 or 2 described metal pipes, it is characterized in that: the outside of described outer wall is provided with external anti-corrosion layer.
4. according to the described metal pipe of claim 3, it is characterized in that: described strengthening rib is horizontal strengthening rib tight with the tubing axis normal or that be intervally arranged.
5. according to the described metal pipe of claim 3, it is characterized in that: described strengthening rib comprises the horizontal strengthening rib of arranging with the tubing axis normal, and is laid between the horizontal strengthening rib and vertical strengthening rib tight with the tubing parallel axes or that be intervally arranged.
6. according to the described metal pipe of claim 3, it is characterized in that: described strengthening rib for shape in the shape of a spiral closely or the spiral strengthening rib that is intervally arranged.
7. according to the described metal pipe of claim 6, it is characterized in that: between described helical strengthening rib, be provided with vertical strengthening rib tight with the tubing parallel axes or that be intervally arranged.
8. according to claim 4,5,6 or 7 described metal pipes, it is characterized in that: anticorrosive coat is stainless steel lining or fire retardant antistatic plastic layer in described, and described external anti-corrosion layer is stainless steel lining or fire retardant antistatic plastic layer.
9. according to the described metal pipe of claim 8, it is characterized in that: the cross section of described strengthening rib is solid or hollow circle, square, flute profile, semicircle, open-delta or ellipse.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204171218U CN202252397U (en) | 2011-10-21 | 2011-10-21 | Light metal tube with high ring stiffness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204171218U CN202252397U (en) | 2011-10-21 | 2011-10-21 | Light metal tube with high ring stiffness |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202252397U true CN202252397U (en) | 2012-05-30 |
Family
ID=46113639
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204171218U Expired - Fee Related CN202252397U (en) | 2011-10-21 | 2011-10-21 | Light metal tube with high ring stiffness |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202252397U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103292065A (en) * | 2013-06-04 | 2013-09-11 | 无锡金顶石油管材配件制造有限公司 | Insulation petroleum pipe with double-layer inner support structure |
| CN108019572A (en) * | 2018-01-23 | 2018-05-11 | 北京拓普天品科技有限公司 | Band and its bellows of making |
-
2011
- 2011-10-21 CN CN2011204171218U patent/CN202252397U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103292065A (en) * | 2013-06-04 | 2013-09-11 | 无锡金顶石油管材配件制造有限公司 | Insulation petroleum pipe with double-layer inner support structure |
| CN103292065B (en) * | 2013-06-04 | 2016-01-06 | 无锡金顶石油管材配件制造有限公司 | A kind of insulation petroleum pipe with double-layer inner support structure |
| CN108019572A (en) * | 2018-01-23 | 2018-05-11 | 北京拓普天品科技有限公司 | Band and its bellows of making |
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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 |
Granted publication date: 20120530 Termination date: 20151021 |
|
| EXPY | Termination of patent right or utility model |