CN207279051U - A kind of stainless-steel seamless pipe of urea level - Google Patents
A kind of stainless-steel seamless pipe of urea level Download PDFInfo
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- CN207279051U CN207279051U CN201721288976.9U CN201721288976U CN207279051U CN 207279051 U CN207279051 U CN 207279051U CN 201721288976 U CN201721288976 U CN 201721288976U CN 207279051 U CN207279051 U CN 207279051U
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Abstract
The utility model discloses a kind of stainless-steel seamless pipe of urea level, including steel pipe body, steel pipe body upper end is welded with connecting flange, several bolts hole are provided with connecting flange, a sealing ring mounting groove is provided with the upper surface of connecting flange, sealing ring mounting groove built-in type is provided with the first sealing ring, and multiple locating convex blocks have been wholely set on the upper surface of the first sealing ring；The lower end of steel pipe body has been wholely set threaded joints, and the second sealing ring is socketed with threaded joints；Steel pipe body is disposed with graphite linings, interior stainless steel layer, metal shielding, outer stainless steel layer and thermal insulation layer from the inside to the outside.Above-mentioned technical proposal, reasonable in design, simple in structure, corrosion resistance and good, resistance to elevated temperatures are good, high voltage performance is good, easy to connect, good seal performance, be not easy leakage and service life grow.
Description
Technical field
It the utility model is related to pipe fitting technical field, and in particular to a kind of stainless-steel seamless pipe of urea level.
Background technology
At present, the market of seamless steel pipe is applied more and more extensive, has been directed to the every aspect of production and living, existing
Seamless steel pipe is mostly hollow pipe, and general environment is enough to deal with, but in some special occasions, such as in fertilizer production equipment, by
There is high temperature, high pressure, inflammable, explosive, perishable, easy poisoning in urea plant, belong to special hazard production area, and
The defects of traditional seamless steel pipe is due to oneself property and structure, poor corrosion resistance, easily leakage, service life is short, practicality
Difference, it is difficult to meet chemical fertilizer production demand.
Utility model content
In view of the deficienciess of the prior art, the purpose of this utility model is to provide a kind of reasonable in design, structure
Simply, corrosion resistance and good, resistance to elevated temperatures are good, high voltage performance is good, easy to connect, good seal performance, are not easy to leak and make
With the stainless-steel seamless pipe of the urea level of long lifespan.
To achieve the above object, the utility model provides following technical solution：A kind of stainless-steel seamless pipe, including steel
Tube body, the steel pipe body upper end are welded with connecting flange, several bolts hole, the company are provided with the connecting flange
A sealing ring mounting groove is provided with the upper surface of acting flange, the sealing ring mounting groove built-in type is provided with the first sealing
Enclose, multiple locating convex blocks have been wholely set on the upper surface of first sealing ring；The lower end of the steel pipe body is wholely set
There are threaded joints, the second sealing ring is socketed with the threaded joints；The steel pipe body is disposed with from the inside to the outside
Graphite linings, interior stainless steel layer, metal shielding, outer stainless steel layer and thermal insulation layer, the outer surface of the graphite linings and interior stainless steel
The inner surface of layer is fixedly connected, and the outer surface of interior stainless steel layer is fixedly connected with the inner surface of metal shielding, metal shielding
Outer surface be fixedly connected with the inner surface of outer stainless steel layer, the outer surface of the outer stainless steel layer and the inner surface of thermal insulation layer are consolidated
Fixed connection.
By using above-mentioned technical proposal, graphite linings are arranged on innermost layer so that the inner surface corrosion resistance and good of steel pipe,
Resistance to elevated temperatures is good, high voltage performance is good；Interior stainless steel layer and outer stainless steel are sturdy and durable all without getting rusty；Metal shielding
The intensity of whole steel pipe can be improved；Thermal insulation layer has heat-blocking action, easy to use；Steel pipe body upper end sets connecting flange
Afterwards, it is easy to connect with existing equipment, it is fixed reliable, it is good in the elastic force effect seal performance of the first sealing ring, it is not easy to leak, is not easy
Loosen；It is reasonable that steel pipe body lower end threaded joints are set, easy to connect with existing pipe fitting, fixed reliable；Reasonable in design,
It is simple in structure, easy to connect, service life is long, practicality is good.
The utility model is further arranged to：The lower end of the steel pipe body is provided with several glove grooves, each puts
Thing groove built-in type is provided with one block of magnet, and internal face of the every block of magnet with glove groove is adhesively fixed.By this setting,
Structure setting is more reasonable, and magnet can hold existing irony component, and connection is reliable, is not easy to loosen.
The utility model is further arranged to：The metal shielding is hard alloy layer, and the thickness of metal shielding
Spend for 3-10mm.By this setting, it is reasonable that metal shielding thickness is set, and intensity is good.
The utility model is further arranged to：The thermal insulation layer is by carbon fiber heat insulation material or asbestos insulation material or glass
Glass fibrous insulating material or the resistance to heat-barrier material of aramid fiber are made, and the thickness of the thermal insulation layer is 2-8mm.Pass through this setting, thermal insulation layer
It is reasonable that thickness is set, and heat-proof quality is good.
The utility model is further arranged to：The graphite linings, interior stainless steel layer, metal shielding, outer stainless steel layer
With thermal insulation layer by being integrally formed structure after composite joint.By this setting, each component connection of steel pipe body is reliable, uses the longevity
Life length.
The utility model is further arranged to：First sealing ring and the second sealing ring are O-ring seal, and the
One sealing ring and the second sealing ring of polytetrafluoroethylene material by being made.By this setting, the first sealing ring and the second sealing
Coil structures are simple, and resistance to elevated temperatures is good.
The utility model has the advantages that：Compared with prior art, the utility model structure setting is more reasonable, and graphite linings are set
Put in innermost layer so that inner surface corrosion resistance and good, the resistance to elevated temperatures of steel pipe are good, high voltage performance is good；Interior stainless steel layer
It is sturdy and durable with outer stainless steel all without getting rusty；Metal shielding can improve the intensity of whole steel pipe；Thermal insulation layer has heat-insulated
Effect, it is easy to use；It is easy to connect with existing equipment after steel pipe body upper end sets connecting flange, it is fixed reliable, it is close first
The elastic force effect seal performance of seal is good, is not easy to leak, is not easy to loosen；It is reasonable that steel pipe body lower end threaded joints are set, with
Existing pipe fitting is easy to connect, fixed reliable；It is reasonable in design, simple in structure, easy to connect, service life is long, practicality is good.
With reference to Figure of description and specific embodiment, the utility model is described in further detail.
Brief description of the drawings
Fig. 1 is the structure diagram of the utility model embodiment；
Fig. 2 is the enlarged diagram in I portions in Fig. 1.
Embodiment
Referring to Fig. 1 and Fig. 2, a kind of stainless-steel seamless pipe disclosed in the utility model, including steel pipe body 1, the steel
1 upper end of tube body is welded with connecting flange 2, several bolts hole 21, the connecting flange 2 are provided with the connecting flange 2
Upper surface on be provided with a sealing ring mounting groove 22,22 built-in type of sealing ring mounting groove is provided with the first sealing ring
3, multiple locating convex blocks 31 have been wholely set on the upper surface of first sealing ring 3；The lower end of the steel pipe body 1 is integrally set
Threaded joints 11 are equipped with, the second sealing ring 4 is socketed with the threaded joints 11；The steel pipe body 1 from the inside to the outside according to
It is secondary to be provided with graphite linings 12, interior stainless steel layer 13, metal shielding 14, outer stainless steel layer 15 and thermal insulation layer 16, the graphite linings
12 outer surface is fixedly connected with the inner surface of interior stainless steel layer 13, the outer surface of interior stainless steel layer 13 and metal shielding 14
Inner surface is fixedly connected, and the outer surface of metal shielding 14 is fixedly connected with the inner surface of outer stainless steel layer 15, described outer stainless
The outer surface of steel layer 15 is fixedly connected with the inner surface of thermal insulation layer 16.
As preference, at least provided with four bolts hole 21 on connecting flange 2, and several annulars of bolt hole 21 are uniformly
Distribution；The quantity of locating convex block 31 sets more than six on the upper surface of first sealing ring 3.
To make the utility model structure setting reasonable, as preference, the lower end of the steel pipe body 1 is provided with several
Glove groove 17, each 17 built-in type of glove groove are provided with one block of magnet 5, and every block of magnet 5 is interior with glove groove 17
Wall is adhesively fixed.
The metal shielding 14 is hard alloy layer, and the thickness of metal shielding 14 is 3-10mm.
The thermal insulation layer 16 is resistance to by carbon fiber heat insulation material or asbestos insulation material or glass fiber insulation or aramid fiber
Heat-barrier material is made, and the thickness of the thermal insulation layer 16 is 2-8mm.
The graphite linings 12, interior stainless steel layer 13, metal shielding 14, outer stainless steel layer 15 and thermal insulation layer 16 are by compound
Structure is integrally formed after connection.
First sealing ring, 3 and second sealing ring 4 is O-ring seal, and the first sealing ring 3 and the second sealing ring 4
By being made of polytetrafluoroethylene material.
During practical application, graphite linings are arranged on innermost layer so that inner surface corrosion resistance and good, the resistance to elevated temperatures of steel pipe
Well, high voltage performance is good；Interior stainless steel layer and outer stainless steel are sturdy and durable all without getting rusty；Metal shielding can improve whole
The intensity of root steel pipe；Thermal insulation layer has heat-blocking action, easy to use；After steel pipe body upper end sets connecting flange, set with existing
It is standby easy to connect, it is fixed reliable, it is good in the elastic force effect seal performance of the first sealing ring, it is not easy to leak, is not easy to loosen；Steel pipe sheet
It is reasonable that body lower end threaded joints are set, easy to connect with existing pipe fitting, fixed reliable；Reasonable in design, simple in structure, company
Connect convenience, service life is long, practicality is good.
Above-described embodiment is served only for that the utility model is further described, no to the specific descriptions of the utility model
It is understood that as the restriction to scope of protection of the utility model, the technician of this area is according to the content pair of above-mentioned utility model
The utility model is made some nonessential modifications and adaptations and is each fallen within the scope of protection of the utility model.
Claims (6)
1. a kind of stainless-steel seamless pipe, including steel pipe body (1), it is characterised in that：Steel pipe body (1) upper end is welded with
Connecting flange (2), is provided with several bolts hole (21) on the connecting flange (2), on the upper surface of the connecting flange (2)
A sealing ring mounting groove (22) is provided with, sealing ring mounting groove (22) built-in type is provided with the first sealing ring (3), institute
State and multiple locating convex blocks (31) have been wholely set on the upper surface of the first sealing ring (3)；The lower end one of the steel pipe body (1)
Threaded joints (11) are provided with, the second sealing ring (4) is socketed with the threaded joints (11)；The steel pipe body (1)
Be disposed with from the inside to the outside graphite linings (12), interior stainless steel layer (13), metal shielding (14), outer stainless steel layer (15) and every
Thermosphere (16), the outer surface of the graphite linings (12) are fixedly connected with the inner surface of interior stainless steel layer (13), interior stainless steel layer
(13) outer surface is fixedly connected with the inner surface of metal shielding (14), outer surface and the outer stainless steel of metal shielding (14)
The inner surface of layer (15) is fixedly connected, and the outer surface of the outer stainless steel layer (15) is fixed with the inner surface of thermal insulation layer (16) to be connected
Connect.
A kind of 2. stainless-steel seamless pipe according to claim 1, it is characterised in that：The lower end of the steel pipe body (1)
Several glove grooves (17) are provided with, each glove groove (17) built-in type is provided with one piece of magnet (5), every block of magnet
(5) internal face with glove groove (17) is adhesively fixed.
A kind of 3. stainless-steel seamless pipe according to claim 2, it is characterised in that：The metal shielding (14) is hard
Matter alloy-layer, and the thickness of metal shielding (14) is 3-10mm.
A kind of 4. stainless-steel seamless pipe according to claim 3, it is characterised in that：The thermal insulation layer (16) is by carbon fiber
Heat-barrier material or asbestos insulation material or glass fiber insulation or the resistance to heat-barrier material of aramid fiber are made, the thermal insulation layer (16)
Thickness is 2-8mm.
A kind of 5. stainless-steel seamless pipe according to claim 4, it is characterised in that：It is the graphite linings (12), interior stainless
Steel layer (13), metal shielding (14), outer stainless steel layer (15) and thermal insulation layer (16) after composite joint by being integrally formed structure.
A kind of 6. stainless-steel seamless pipe according to claim 1, it is characterised in that：First sealing ring (3) and
Two sealing rings (4) are O-ring seal, and the first sealing ring (3) and the second sealing ring (4) are by polytetrafluoroethylene material system
Into.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721288976.9U CN207279051U (en) | 2017-09-30 | 2017-09-30 | A kind of stainless-steel seamless pipe of urea level |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721288976.9U CN207279051U (en) | 2017-09-30 | 2017-09-30 | A kind of stainless-steel seamless pipe of urea level |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207279051U true CN207279051U (en) | 2018-04-27 |
Family
ID=61988841
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721288976.9U Active CN207279051U (en) | 2017-09-30 | 2017-09-30 | A kind of stainless-steel seamless pipe of urea level |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207279051U (en) |
-
2017
- 2017-09-30 CN CN201721288976.9U patent/CN207279051U/en active Active
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