CN104315285A - Cold and hot fluid mixing tee-joint - Google Patents
Cold and hot fluid mixing tee-joint Download PDFInfo
- Publication number
- CN104315285A CN104315285A CN201410527370.0A CN201410527370A CN104315285A CN 104315285 A CN104315285 A CN 104315285A CN 201410527370 A CN201410527370 A CN 201410527370A CN 104315285 A CN104315285 A CN 104315285A
- Authority
- CN
- China
- Prior art keywords
- honeycomb duct
- cone mouth
- hot fluid
- mixing tee
- cold
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L41/00—Branching pipes; Joining pipes to walls
- F16L41/02—Branch units, e.g. made in one piece, welded, riveted
- F16L41/021—T- or cross-pieces
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L58/00—Protection of pipes or pipe fittings against corrosion or incrustation
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
Abstract
The invention discloses a cold and hot fluid mixing tee-joint. The cold and hot fluid mixing tee-joint comprises a tee-joint main body and a conical-opening guide pipe, wherein the tee-joint main body is formed by vertically and orthogonally intersecting a main pipe and a branch pipe; the main pipe comprises a main pipe inlet and a main pipe outlet; the branch pipe comprises a branch pipe inlet and a branch pipe outlet. The cold and hot fluid mixing tee-joint is characterized in that the conical-opening guide pipe comprises a conical-opening guide pipe end part and a conical-opening guide pipe bottom, wherein the conical-opening guide pipe end part is a conical shell, the conical-opening guide pipe and the main pipe are welded inside the main pipe through the conical-opening guide pipe end part, the conical-opening guide pipe end part is positioned between a main pipe inlet and the branch pipe, and the bottom of the conical-opening guide pipe is positioned between the branch pipe and the main pipe outlet. According to the mixing tee-joint, bias current accumulation of corrosive drops can be avoided due to reasonable process parameter design, and thus the corrosive cracking problem at the downstream of the tee-joint pipeline is fundamentally solved; the cold and hot fluid mixing tee-joint is convenient and easy to use.
Description
Technical field
The present invention relates to fluid delivery pipeline component, be specially a kind of cold fluid and hot fluid mixing tee, for corroding the segregation flowing of drop in anti-fluid, particularly in fluid containing threeway mixed process in corrosion drop situation.
Background technique
Gully shape wall thickness corrosion thinning in downstream straight length 1.5 m that threeway once repeatedly appearred in the hot and cold synthetic gas mixing tee in SHELL gasification Quench cycle gas system and downstream straight length thereof also causes the phenomenon that leakage even tears.Kong Guang jumps etc. (coal hydrogen manufacturing Quench device of air threeway wearing and tearing numerical simulation [J]. pressurized container, 2012,29 (11): 34-38) think owing to containing a certain amount of solid particle in the hot synthesis gas in tee branch, Low angle erosion can be caused to neck in threeway and downstream line, cause wall thickness reduction, but Wear prediction straight length wall thickness reduction position and actually have larger difference.Lin Hui etc. (coal hydrogen manufacturing Quench device of air threeway etching problem analyzes [J]. Chinese surface engineering, 2012,25 (02): 103-108) corrosion location foulant is analyzed, find the sulphide having iron in corrosion products, show that threeway downstream line is thinning and tear and H
2the effect of the aggressive mediums such as S is relevant, and infers that this corrosion failure just there will be when there being liquid water to exist.Carry out analysis to the component of hot and cold synthetic gas to find, under working pressure and temperature, the part water in cold synthetic gas is liquid, and the water in hot synthesis gas is then gaseous state and overheated.Water in the cold synthetic gas of washing machine washing enters threeway main pipeline with the form of entrainment, and liquid water can dissolve H
2s, CO
2deng aggressive medium.After cold synthetic gas is mixed into hot synthesis gas, the corrosion drop in cold synthetic gas can heat and evaporate.Analysis shows, can assemble in the pipeline section bias current of threeway 1.5m downstream and evaporate in Quench gas mixed process, cause the corrosion of threeway neck and 1.5m downstream pipeline section and thinning, and finally tear at the region of high stress that there is working stress, thermal stress and welding residual stress.
For this reason, the region of corrosion drop segregation evaporation and near pipeline section use Corrosion resistant lining material (as Incolnel8825) to be necessary, what adopt Quench air pipe in current industrial production is exactly this Corrosion resistant lining structure.But as seen from the above analysis, the segregation flowing of corrosion drop occurs over just threeway downstream regional area, whole Quench air pipe all adopts Corrosion resistant lining there is no need, cause the waste of resource and the raising of cost, therefore by rational structural design, the segregation evaporation eliminating corrosion drop is only better selection.
Summary of the invention
For the deficiencies in the prior art, the technical problem that quasi-solution of the present invention is determined is, provides a kind of cold fluid and hot fluid mixing tee.This mixing tee is by reasonably design, and the bias current of corroding drop can be avoided to assemble, thus effected a radical cure the corrosion cracking problem in three-way pipeline downstream, structure is simple, easy to use.
The technological scheme that the present invention solve the technical problem is, provides a kind of cold fluid and hot fluid mixing tee, comprises threeway main body and cone mouth honeycomb duct, and described threeway main body is formed with arm perpendicular quadrature by being responsible for; Described supervisor comprises supervisor's entrance and supervisor's outlet; Described arm comprises manifold inlet and branch outlet; It is characterized in that described cone mouth honeycomb duct comprises bottom cone mouth honeycomb duct end and cone mouth honeycomb duct, described cone mouth honeycomb duct end is cone shell, cone mouth honeycomb duct flows side by cone mouth honeycomb duct welding edges main pipe with supervisor meeting, cone mouth honeycomb duct end be in supervisor entrance and arm between, be in bottom cone mouth honeycomb duct arm and supervisor export between.
Described cone mouth honeycomb duct end is positioned at the position of distance arm center line 1.5-2.5 times of arm external diameter.
The length range of described cone mouth honeycomb duct is 3-5 times of arm external diameter.
The cone mouth semi-cone angle angular range of described cone mouth honeycomb duct end is 45 ° ± 15 °.
Described cone mouth honeycomb duct is corrosion resistant material Incolnel8825.
The present invention's beneficial effect is compared with the conventional method: by rational process parameters design, the bias current of corroding drop can be avoided to assemble, thus effected a radical cure the corrosion cracking problem in three-way pipeline downstream, facilitate simple and easy.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of a kind of embodiment of a kind of cold fluid and hot fluid of the present invention mixing tee;
Fig. 2 is common threeway corrosion drop contour band;
Fig. 3 is the corrosion drop contour band of a kind of embodiment of a kind of cold fluid and hot fluid of the present invention mixing tee.
Concrete embodiment
Provide specific embodiments of the invention below.Specific embodiment, only for further describing the present invention, does not limit the protection domain of the application's claim.
Embodiment 1
A kind of cold fluid and hot fluid mixing tee (see Fig. 1), comprise threeway main body 1 and cone mouth honeycomb duct 2, described threeway main body 1 is made up of supervisor 11 and arm 12 perpendicular quadrature, and mixing tee is of a size of
wherein be responsible for 11 to be of a size of
material is 20 steel, and in pipe, medium temperature is 150 DEG C, and volume flowrate is 2793.8m
3/ h, working pressure is 3.8MPa; Arm 12 is of a size of
material is all 20 steel, and in pipe, medium temperature is 270 DEG C, and volume flowrate is 6128m
3/ h, working pressure is all 3.8MPa.Described cone mouth honeycomb duct end 21 is cone shell, cone mouth honeycomb duct 2 and supervisor 11 flows side and are welded on supervisor 11 inside by cone mouth honeycomb duct end 21 meeting, cone mouth honeycomb duct 2 is in the mounting point of supervisor 11 apart from arm 12 center line 500mm, and cone mouth honeycomb duct 2 is of a size of
cone mouth honeycomb duct 2 length is 1m, and cone mouth honeycomb duct end 21 cone mouth semi-cone angle is 60 °, and cone mouth honeycomb duct 2 material is Incolnel8825.Flowed out by the outlet 112 of supervisor 11 after cold fluid and hot fluid mixing, outlet temperature is 190 DEG C, and outlet pressure is all 3.8MPa.
During work, cold fluid enters threeway main body 1 from supervisor's entrance 111, enters cone mouth honeycomb duct 2 afterwards by cone mouth honeycomb duct 21, and bottom cone mouth honeycomb duct, 22 flow out the downstream entering threeway main body 1; Hot fluid enters from manifold inlet 121, flow out from branch outlet 122 and enter threeway main body 1, hot fluid in arm 12 is cold fluid inside cone mouth honeycomb duct 2 external heat cone mouth honeycomb duct 2, cold fluid and hot fluid does not mix by means of only honeycomb duct heat exchange at threeway main body 1 position, mixed process is postponed to threeway main body 1 downstream, thus avoids the bias current of corroding drop to assemble.Cold fluid under the encirclement of hot fluid to threeway main body 1 downstream flow, cold fluid drop absorbs heat evaporation in flow process, avoid the gathering that corrosive liquid drops in the inner-walls of duct face in threeway main body 1 downstream, thus having effected a radical cure the corrosion cracking problem in three-way pipeline downstream, final fluid-mixing is flowed out by supervisor's outlet 112.
The fluid-mixing composition that supervisor's cold fluid, arm hot fluid and threeway export is in table 1.
Fluid-mixing composition (mol%) that cold fluid, arm hot fluid and threeway export is responsible for by table 1
In order to determine the content of liquid water in cold fluid, software aspen plus is utilized to carry out technological process simulation to mixed process, in analog result display cold fluid, the mole fraction of liquid water is 7%, and these liquid waters enter mixing tee supervisor's with the form of entrainment from synthesis gas washing tower.Can also draw from result, hot fluid and fluid-mixing are all gaseous state simultaneously, and this illustrates that the liquid water in cold fluid is evaporated in mixed process.
Through CFD numerical calculation, mixing tee of the present invention is compared with common threeway, and the segregation mobility status contrast of corrosion drop is as follows:
Fig. 2 common threeway corrosion drop contour band; Fig. 3 mixing tee corrosion of the present invention drop contour band, concentration unit is kg/m
3.Common threeway body upstream concentration of liquid drops maximum value is 1.39 × 10 as seen from Figure 2
-3kg/m
3, elongated zones, downstream concentration of liquid drops peak is 4.63 × 10
-3kg/m
3.As can be seen from Figure 3 mixing tee of the present invention is being responsible for into place's concentration of liquid drops the highest, and value is 8.04 × 10
-4kg/m
3, and downstream concentration of liquid drops is up to 0.80 × 10
-4kg/m
3.Tube wall corrosion-free drop in visible downstream of the present invention is assembled, and effectively can avoid the corrosion cracking of threeway mixed construction.Tube wall corrosion-free drop in visible downstream of the present invention is assembled, and effectively can avoid the corrosion cracking of threeway mixed construction.This is that partial drop can evaporate because the cold fluid containing corrosion drop is at water conservancy diversion Bottomhole pressure and by the hot fluid heats of outside, but due to the impact of non-heated fluid mixed function, cold fluid can not produce segregation flowing.When cold fluid mixes from honeycomb duct outflow with hot fluid, hot fluid can surround cold fluid comparatively equably in surrounding and mix, corrosion drop only has obvious axial movement component, radial motion component is less, along with the mass-and heat-transfer of cold and hot fluid, corrosive liquid just evaporates before dropping in and moving to supervisor's tube wall, can not form corrosive action to supervisor's tube wall.
Claims (5)
1. a cold fluid and hot fluid mixing tee, comprises threeway main body and cone mouth honeycomb duct, and described threeway main body is formed with arm perpendicular quadrature by being responsible for; Described supervisor comprises supervisor's entrance and supervisor's outlet; Described arm comprises manifold inlet and branch outlet; It is characterized in that described cone mouth honeycomb duct comprises bottom cone mouth honeycomb duct end and cone mouth honeycomb duct, described cone mouth honeycomb duct end is cone shell, cone mouth honeycomb duct flows side by cone mouth honeycomb duct welding edges main pipe with supervisor meeting, cone mouth honeycomb duct end be in supervisor entrance and arm between, be in bottom cone mouth honeycomb duct arm and supervisor export between.
2. cold fluid and hot fluid mixing tee according to claim 1, is characterized in that described cone mouth honeycomb duct end is positioned at the position of distance arm center line 1.5-2.5 times of arm external diameter.
3. cold fluid and hot fluid mixing tee according to claim 1, is characterized in that the length range of described cone mouth honeycomb duct is 3-5 times of arm external diameter.
4. cold fluid and hot fluid mixing tee according to claim 1, is characterized in that the cone mouth semi-cone angle angular range of described cone mouth honeycomb duct end is 45 ± 15 °.
5. cold fluid and hot fluid mixing tee according to claim 1, is characterized in that described cone mouth honeycomb duct is corrosion resistant material Incolnel8825.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201410527370.0A CN104315285A (en) | 2014-10-09 | 2014-10-09 | Cold and hot fluid mixing tee-joint |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201410527370.0A CN104315285A (en) | 2014-10-09 | 2014-10-09 | Cold and hot fluid mixing tee-joint |
Publications (1)
Publication Number | Publication Date |
---|---|
CN104315285A true CN104315285A (en) | 2015-01-28 |
Family
ID=52370561
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201410527370.0A Pending CN104315285A (en) | 2014-10-09 | 2014-10-09 | Cold and hot fluid mixing tee-joint |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN104315285A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106481924A (en) * | 2015-08-26 | 2017-03-08 | 中石化洛阳工程有限公司 | A kind of bushing type blender for cold fluid and hot fluid |
CN109027485A (en) * | 2018-08-06 | 2018-12-18 | 上海时鉴工程技术有限公司 | A kind of anti-corrosion pressure resistance mixed flow threeway |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6275194A (en) * | 1985-09-30 | 1987-04-07 | 石川島播磨重工業株式会社 | Fluid mixing pipe |
JPS62101994A (en) * | 1985-10-30 | 1987-05-12 | 石川島播磨重工業株式会社 | Fluid mixing pipe |
JPH07119899A (en) * | 1993-10-21 | 1995-05-12 | Hitachi Ltd | Mixed flow piping structure |
JPH07243595A (en) * | 1994-03-09 | 1995-09-19 | Hitachi Ltd | Mixture flow piping structure |
CN200961767Y (en) * | 2006-06-05 | 2007-10-17 | 罗志军 | Three-way for heat mixing |
CN202252534U (en) * | 2011-08-25 | 2012-05-30 | 中国石油化工集团公司 | Sleeve lateral tee |
CN204127546U (en) * | 2014-10-09 | 2015-01-28 | 河北工业大学 | A kind of cold fluid and hot fluid mixing tee |
-
2014
- 2014-10-09 CN CN201410527370.0A patent/CN104315285A/en active Pending
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6275194A (en) * | 1985-09-30 | 1987-04-07 | 石川島播磨重工業株式会社 | Fluid mixing pipe |
JPS62101994A (en) * | 1985-10-30 | 1987-05-12 | 石川島播磨重工業株式会社 | Fluid mixing pipe |
JPH07119899A (en) * | 1993-10-21 | 1995-05-12 | Hitachi Ltd | Mixed flow piping structure |
JPH07243595A (en) * | 1994-03-09 | 1995-09-19 | Hitachi Ltd | Mixture flow piping structure |
CN200961767Y (en) * | 2006-06-05 | 2007-10-17 | 罗志军 | Three-way for heat mixing |
CN202252534U (en) * | 2011-08-25 | 2012-05-30 | 中国石油化工集团公司 | Sleeve lateral tee |
CN204127546U (en) * | 2014-10-09 | 2015-01-28 | 河北工业大学 | A kind of cold fluid and hot fluid mixing tee |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106481924A (en) * | 2015-08-26 | 2017-03-08 | 中石化洛阳工程有限公司 | A kind of bushing type blender for cold fluid and hot fluid |
CN106481924B (en) * | 2015-08-26 | 2019-03-22 | 中石化洛阳工程有限公司 | A kind of bushing type mixer for cold fluid and hot fluid |
CN109027485A (en) * | 2018-08-06 | 2018-12-18 | 上海时鉴工程技术有限公司 | A kind of anti-corrosion pressure resistance mixed flow threeway |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN2877882Y (en) | Eddy flow steam-liquid atomization injector | |
CN103450918B (en) | High-uniformity foam asphalt generating device | |
CN206753550U (en) | A kind of oil field industrial water ring generating apparatus | |
CN202252534U (en) | Sleeve lateral tee | |
CN204127546U (en) | A kind of cold fluid and hot fluid mixing tee | |
CN104315285A (en) | Cold and hot fluid mixing tee-joint | |
CN205048063U (en) | A pipeline that is used for torch trachea line to compensate naturally | |
CN103711059A (en) | Asphalt foaming device | |
CN204365109U (en) | A kind of formaldehyde absorbing tower of anti-polymerization | |
CN103433163B (en) | A kind of Double-fluid spray gun for denitration | |
CN203926925U (en) | Low pressure loss water sealed tank | |
CN202173892U (en) | Efficient injection agent mixer | |
CN205436507U (en) | A cleaning device for saturator coal gas outlet pipe way | |
CN101690872A (en) | High-pressure water injection mixer | |
CN203308390U (en) | Iso-dryness distribution tee joint | |
CN203459196U (en) | Denitration two-fluid spray gun | |
CN205472864U (en) | Novel thermoelectricity thermodynamic system ammonifying device | |
CN206514272U (en) | The regeneration device of non-clean steam | |
CN207963581U (en) | A kind of new type superthin stainless steel water packet | |
CN205833396U (en) | A kind of sour method composite heat transfer dilute sulfuric acid spray appliance | |
CN202105604U (en) | Acid mixing device for concentrated sulfuric acid | |
CN204386951U (en) | The low liquid level of a kind of water pump runs constant-current stabilizer | |
CN204388036U (en) | A kind of direct-contact desuperheater | |
CN209530570U (en) | A kind of simple concentrated sulfuric acid industry dilution device | |
CN204251640U (en) | Air-casing is utilized to prevent the fire door flue of slagging scorification |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
RJ01 | Rejection of invention patent application after publication | ||
RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150128 |