CN206832116U - A kind of porous precooling pipe - Google Patents
A kind of porous precooling pipe Download PDFInfo
- Publication number
- CN206832116U CN206832116U CN201720778676.2U CN201720778676U CN206832116U CN 206832116 U CN206832116 U CN 206832116U CN 201720778676 U CN201720778676 U CN 201720778676U CN 206832116 U CN206832116 U CN 206832116U
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- China
- Prior art keywords
- pipe
- porous
- precooling
- hydrojet
- baffle plate
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- 239000007921 spray Substances 0.000 claims abstract description 39
- 239000007788 liquid Substances 0.000 claims abstract description 30
- 210000001124 body fluid Anatomy 0.000 claims 1
- 239000010839 body fluid Substances 0.000 claims 1
- 229910000831 Steel Inorganic materials 0.000 abstract description 26
- 239000010959 steel Substances 0.000 abstract description 26
- 239000002826 coolant Substances 0.000 abstract description 24
- 238000004080 punching Methods 0.000 abstract description 11
- 238000002347 injection Methods 0.000 abstract description 8
- 239000007924 injection Substances 0.000 abstract description 8
- 230000009286 beneficial effect Effects 0.000 description 9
- 238000003860 storage Methods 0.000 description 7
- 238000003466 welding Methods 0.000 description 6
- 238000001816 cooling Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000000994 depressogenic effect Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 229910001566 austenite Inorganic materials 0.000 description 1
- 229910000963 austenitic stainless steel Inorganic materials 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
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- Nozzles (AREA)
Abstract
The utility model provides a kind of porous precooling pipe, and porous precooling pipe includes：Bend pipe, sparge pipe, baffle plate, described bend pipe one end is connected with described sparge pipe one end, the other end of the bend pipe is inlet, the baffle plate setting is on the end face of the sparge pipe other end, the hydrojet tube end liquid outlet area is less than the 1/2 of the hydrojet pipe orifice area of a circle, and multiple spray holes are provided with the sparge pipe body.Porous precooling pipe is rolled and formed after using the leading punching press spray hole of steel band, is produced without burr, improves product reliability；Baffle plate blocks sparge pipe portion end surface, can promote coolant flow speed in precooling pipe pipe, and and can improves the liquid injection power of spray hole.
Description
Technical field
A kind of antipriming pipe is the utility model is related to, particularly a kind of porous precooling pipe.
Background technology
The gases such as natural gas need to be transported its low-temperature liquefaction in storage tank.Storage tank and pipeline use austenite stainless
Steel material, austenitic stainless steel has excellent cryogenic property, but linear expansion coefficient is larger.For 304L material pipelines, in work
Make temperature for -162 DEG C when, 100m pipelines about shrink 300mm.Although considering the compensation of cold events in design,
When rate temperature change is larger, also has that temperature change is too fast, thermal stress is excessive and material or connecting portion is produced damage
Problem.This is required before cryogenic piping and equipment enter cryogenic liquid, carries out precooling operation first, it is ensured that put into operation safety.
Porous precooling pipe is the long tube that precooling is carried out to storage tank, and present antipriming pipe moulding process is on steel pipe, uses brill
Bed is drilled one by one, and one is managed about 10 meters, above uniform dozens of diameter in 5-10mm aperture, boring work amount is big one by one.
More troublesome to be, bore process produces substantial amounts of burr in the back side in hole and pipe, clears up inside 10 meters of long tubes, is not easy to grasp
Make, it is impossible to clean out.The burr of residual can be entered in storage tank with coolant and destroy each valve body, and safety is buried for storage tank transport
Hidden danger.In addition, existing porous precooling pipe coolant injection diversity is poor, can only to improve cooling uniformity and cooling velocity
The more more dense apertures of processing, improve manufacture difficulty, and effect is undesirable.
Utility model content
In order to overcome the above-mentioned deficiencies of the prior art, the purpose of this utility model there is provided a kind of impulse- free robustness residual, spray
Penetrate uniform porous precooling pipe.
To reach above-mentioned purpose, technical scheme is used by the utility model solves its technical problem：It is a kind of porous pre-
Cold pipe, including：Bend pipe, sparge pipe, baffle plate, described bend pipe one end are connected with described sparge pipe one end, the bend pipe it is another
Hold as inlet, for the baffle plate setting on the end face of the sparge pipe other end, the hydrojet tube end liquid outlet area is small
Multiple spray holes are provided with the 1/2 of the hydrojet pipe orifice area of a circle, the sparge pipe body.
For the utility model compared to prior art, baffle plate blocks sparge pipe portion end surface, can promote cold in precooling pipe pipe
But liquid flowing velocity, and can improve the liquid injection power of spray hole.
Further, the hydrojet inside pipe wall is provided with helical groove, and the spray hole is arranged in the helical groove.
Using above-mentioned preferable scheme, helical groove makes coolant form vortex, increases liquid centrifugal force, and coolant is more easy to
Sprayed from spray hole.
Further, each spray hole is combined by multiple small liquid holes, and outside small liquid hole is along the small liquid hole of center
Heart line dissipates into 10-20 degree is angularly outer.
Using above-mentioned preferable scheme, coolant is outwards sprayed in divergent shape, improve the injection uniformity of coolant.
Further, the sectional area of the helical groove from the midpoint of two hydrojet pitchs of holes to each spray hole at gradually become
It is small.
Using above-mentioned preferable scheme, the local pressure of coolant at spray hole is added, substantially increases jet power.
Further, the hydrojet inside pipe wall is provided with the multiple tracks ring-type shallow grooves vertical with sparge pipe length direction, institute
Ring-type shallow grooves are stated with the helical groove to be connected.
Using above-mentioned preferable scheme, coolant, which flows through ring-type shallow grooves, can produce vibrations along sparge pipe length direction,
Make coolant jet power and spray angle high frequency circulation change, improve coolant uniformity in its spray regime.
Further, the speed adjusting plate that can be rotated along baffle center is additionally provided with the baffle plate, the speed adjusting plate can be adjusted
The hydrojet tube end liquid outlet size.
Using above-mentioned preferable scheme, precooling liquid in pipe pressure can be adjusted, also can ceaselessly be rotated by speed adjusting plate,
Change precooling overpressure low frequency cycle, improve the spray regime of coolant.
A kind of manufacture method of porous precooling pipe, comprises the following steps：
Step 1, the steel band of respective width is made according to hydrojet pipe diameter；
Step 2, jet-bedding, punching on steel band with diel；
Step 3, the punching burr at the steel band back side is cleared up；
Step 4, steel pipe, and welding fabrication are rolled；
Step 5, select respective numbers steel pipe to carry out welding and form sparge pipe according to hydrojet length of tube, by sparge pipe with it is curved
Pipe, baffle plate welding, that is, form porous precooling pipe.
Using above-mentioned preferable scheme, with diel punching, the multiple holes of one-shot forming, efficiency high, punching press side does not have hair
Thorn produces, and only punching press side back face is there may be a small amount of burr, and is easily handled, and has prevented depositing for burr in precooling pipe finished product
Improving product reliability.
Further, there is above-mentioned spray hole on the steel band being stamped and formed out in step 2.
Further, have on the steel band being stamped and formed out in step 2：Corresponding with above-mentioned helical groove shape is oblique recessed
Groove, above-mentioned small liquid hole, the vertical shallow grooves corresponding with above-mentioned ring-type scrobicula groove shape, the adjacent oblique groove it is upper
End, lower end position match, so that after steel band rolls into steel pipe, form continuous helical groove.
Using above-mentioned preferable scheme, there is the precooling pipe of said structure, improve coolant spray regime and injection is uniform
Property, lift the cooling velocity to storage tank.
Further, the steel band upper and lower end being stamped and formed out in step 2 is provided with protuberance, the depressed part to match.
Using above-mentioned preferable scheme, after raising steel band rolls into precooling pipe, the positional precision of inner-walls of duct structure matching.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, drawings in the following description are only
It is some embodiments of the utility model, for those of ordinary skill in the art, is not paying the premise of creative work
Under, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of structural representation of embodiment of the utility model；
Fig. 2 be in Fig. 1 A-A to diagrammatic cross-section；
Fig. 3 be in Fig. 1 B to schematic diagram；
Fig. 4 is the structural representation of the utility model another embodiment；
Fig. 5 be in Fig. 4 C-C to diagrammatic cross-section；
Fig. 6 is the structural representation of the utility model another embodiment；
Fig. 7 is the structural representation of the utility model another embodiment；
Fig. 8 is a kind of structural representation of embodiment steel band of the utility model.
Numeral and the title of the corresponding component represented by letter in figure：
1- bend pipes；2- sparge pipes；21- spray holes；211- small liquid holes；22- helical grooves；23- ring-type shallow grooves；3- is kept off
Plate；31- speed adjusting plates；4- steel bands；41- oblique grooves；The vertical shallow grooves of 42-；43- protuberances；44- depressed parts.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belong to the scope of the utility model protection.
As Figure 1-3, a kind of porous precooling pipe, including：Bend pipe 1, sparge pipe 2, baffle plate 3, the one end of bend pipe 1 and sparge pipe
2 one end are connected, and the other end of bend pipe 1 is inlet, and baffle plate 3 is arranged on the end face of the other end of sparge pipe 2, the end of sparge pipe 2
Portion's liquid outlet area is less than the 1/2 of the endoporus area of a circle of sparge pipe 2, and multiple spray holes 21 are provided with the body of sparge pipe 2.
It is using the beneficial effect of above-mentioned technical proposal：Baffle plate 3 blocks the portion end surface of sparge pipe 2, can promote precooling pipe
Coolant flow speed in pipe, and can improve the liquid injection power of spray hole.
As shown in figure 4, in other embodiments of the present utility model, in order to reach the hydrojet ability for improving spray hole
Purpose, the inwall of sparge pipe 2 is provided with helical groove 22, and spray hole 21 is arranged in helical groove 22.Using above-mentioned technical side
The beneficial effect of case is：Helical groove 22 makes coolant form vortex, increases liquid centrifugal force, and coolant is more easy to spray from spray hole
Go out.
As shown in figure 5, in other embodiments of the present utility model, in order to reach the mesh for improving hydrojet diversity
, each spray hole 21 is combined by multiple small liquid holes 211, and outside small liquid hole is along center small liquid hole center line into 10-20 degree
Angular outer diverging.It is using the beneficial effect of above-mentioned technical proposal：Coolant is outwards sprayed in divergent shape, improve coolant
Spray the uniformity.
As shown in fig. 6, in other embodiments of the present utility model, in order to reach the purpose of lifting jet power, spiral shell
Revolve groove 22 sectional area from the midpoint of two hydrojet pitchs of holes to each spray hole at taper into.Using above-mentioned technical proposal
Beneficial effect is：The local pressure of coolant at spray hole is added, substantially increases jet power.
In other embodiments of the present utility model, in order to reach the purpose that injection liquid level puts circulation change, hydrojet
The inwall of pipe 2 is provided with the multiple tracks ring-type shallow grooves 23 vertical with the length direction of sparge pipe 2, ring-type shallow grooves 23 and helical groove 22
It is connected.It is using the beneficial effect of above-mentioned technical proposal：Coolant flows through ring-type shallow grooves 23 and can produced along hydrojet length of tube
The vibrations in direction, make coolant jet power and spray angle high frequency circulation change, it is uniform in its spray regime to improve coolant
Property.
As shown in fig. 7, in other embodiments of the present utility model, followed in a wider context to reach injection liquid
The purpose of ring change, is additionally provided with and can adjust sparge pipe 2 along the speed adjusting plate 31 of the center rotating of baffle plate 3, speed adjusting plate 31 on baffle plate 3
End liquid outlet size.It is using the beneficial effect of above-mentioned technical proposal：Precooling liquid in pipe pressure can be adjusted, can also be passed through
Speed adjusting plate 31 ceaselessly rotates, and changes precooling overpressure low frequency cycle, improves the spray regime of coolant.
A kind of manufacture method of porous precooling pipe, comprises the following steps：
Step 1, the steel band of respective width is made according to hydrojet pipe diameter；
Step 2, jet-bedding, punching on steel band with diel；
Step 3, the punching burr at the steel band back side is cleared up；
Step 4, steel pipe, and welding fabrication are rolled；
Step 5, select respective numbers steel pipe to carry out welding and form sparge pipe according to hydrojet length of tube, by sparge pipe with it is curved
Pipe, baffle plate welding, that is, form porous precooling pipe.
It is using the beneficial effect of above-mentioned technical proposal：With diel punching, the multiple holes of one-shot forming, efficiency high, punching
Pressure side does not have burr generation, and only punching press side back face is there may be a small amount of burr, and is easily handled, and has prevented in precooling pipe finished product
The presence of burr, improves product reliability.
As shown in figure 8, in other embodiments of the present utility model, in order to reach the mesh of lifting spray cooling effect
, there is above-mentioned spray hole 21 on the steel band 4 being stamped and formed out in step 2；Have on the steel band 4 being stamped and formed out in step 2：With spiral shell
Revolve the corresponding oblique groove 41 of the shape of groove 22, small liquid hole 211, the vertical shallow grooves corresponding with the shape of ring-type shallow grooves 23
42, the upper end of adjacent oblique groove 41, lower end position match, so that after steel band rolls into steel pipe, it is recessed to form continuous spiral
Groove 22.It is using the beneficial effect of above-mentioned technical proposal：Precooling pipe with said structure, improve coolant spray regime and spray
Uniformity is penetrated, lifts the cooling velocity to storage tank.
In other embodiments of the present utility model, in order to reach the purpose for improving pipe crimping positional precision, in step 2
The upper and lower end of steel band 4 being stamped and formed out is provided with protuberance 43, the depressed part 44 to match.Using the beneficial effect of above-mentioned technical proposal
Fruit is：After raising steel band 4 rolls into precooling pipe, the positional precision of inner-walls of duct structure matching.
For above-described embodiment only to illustrate technical concepts and features of the present utility model, its object is to allow the common skill in this area
Art personnel can understand content of the present utility model and be carried out, and can not limit the scope of protection of the utility model with this,
All equivalent change or modifications made according to the utility model Spirit Essence, should all cover in the scope of protection of the utility model
It is interior.
Claims (6)
- A kind of 1. porous precooling pipe, it is characterised in that including：Bend pipe, sparge pipe, baffle plate, described bend pipe one end and the hydrojet Pipe one end is connected, and the other end of the bend pipe is inlet, the baffle plate setting on the end face of the sparge pipe other end, The hydrojet tube end liquid outlet area is less than the 1/2 of the hydrojet pipe orifice area of a circle, and multiple sprays are provided with the sparge pipe body Fluid apertures.
- 2. porous precooling pipe according to claim 1, it is characterised in that the hydrojet inside pipe wall is provided with helical groove, The spray hole is arranged in the helical groove.
- 3. porous precooling pipe according to claim 2, it is characterised in that each spray hole is combined by multiple small liquid holes Form, outside small liquid hole dissipates along center small liquid hole center line into 10-20 degree is angularly outer.
- 4. porous precooling pipe according to claim 2, it is characterised in that the sectional area of the helical groove is from two spray holes The midpoint of spacing is to tapering at each spray hole.
- 5. porous precooling pipe according to claim 4, it is characterised in that the hydrojet inside pipe wall is provided with multiple tracks and hydrojet The vertical ring-type shallow grooves in length of tube direction, the ring-type shallow grooves are connected with the helical groove.
- 6. porous precooling pipe according to claim 1, it is characterised in that being additionally provided with the baffle plate can turn along baffle center Dynamic speed adjusting plate, the speed adjusting plate can adjust the hydrojet tube end liquid outlet size.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720778676.2U CN206832116U (en) | 2017-06-29 | 2017-06-29 | A kind of porous precooling pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720778676.2U CN206832116U (en) | 2017-06-29 | 2017-06-29 | A kind of porous precooling pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206832116U true CN206832116U (en) | 2018-01-02 |
Family
ID=60778448
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720778676.2U Expired - Fee Related CN206832116U (en) | 2017-06-29 | 2017-06-29 | A kind of porous precooling pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206832116U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107179015A (en) * | 2017-06-29 | 2017-09-19 | 南通理工学院 | A kind of porous precooling pipe and its manufacture method |
-
2017
- 2017-06-29 CN CN201720778676.2U patent/CN206832116U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107179015A (en) * | 2017-06-29 | 2017-09-19 | 南通理工学院 | A kind of porous precooling pipe and its manufacture method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180102 |