CN106288925A - The connection method of concentric suit cylindrical wall end flange circular hole - Google Patents

Abstract

It is first a termination excess of spigot-and-socket S elbow to be inserted end to turn up lateral opening interior by the method for spigot-and-socket S elbow connection concentric suit cylindrical wall end flange circular hole, it is that axle rotates by spigot-and-socket S elbow according to end lateral opening center of turning up again, making its another termination be directed at the end varus of this side lateral opening and insert, the flange of the two ends and two flange circular holes that form spigot-and-socket S elbow becomes to overlap and connects.

Description

The connection method of concentric suit cylindrical wall end flange circular hole

Technical field: the present invention relates to mechanical manufacturing field, two circles of a kind of concentric suit Barrel end flange circular hole uses the connection method of spigot-and-socket S elbow overlap joint.

Background technology: heat exchanger, is the equipment that the amount of localized heat of hot fluid passes to cold flow body, again Claim heat exchanger.Double pipe heat exchanger is to be fitted together i.e. outer tube by the pipe concentric locking collar that two diameters are different Set on inner pipe, inner and outer pipes or be straight tube or for bend pipe, the space one-tenth annular space chuck between inner and outer pipes, It is consequently formed between the central space passage of central canal and annular space jacket space passage as dividing wall type hot and cold stream A kind of heat exchanger of body heat content exchange, is used widely because of the circulation feature of its annular space chuck.One Individual chuck cylinder is the concentric sleeve that the straight tube coaxial package not waited by two diameters is constituted together, inside and outside Space between Tong also becomes annular space chuck；Two chuck cylinder coaxial packages the most isometrical are external jacket together Jacket casing is (4 straight tube coaxial packages are together altogether) on inner clip sleeve, inner clip sleeve and outer clip sleeve Between space become annular space chuck equally and constitute the circulation passage of a kind of fluid, it is with inner clip sleeve The circulation passage of the one other fluid that the annular space chuck of annular space chuck and outer clip sleeve is constituted carries out heat friendship Changing, this heat exchanger is referred to as chuck cylinder heat exchanger.Not only there is the annular space chuck of double-tube heat exchanger because of it High coefficient of heat transfer feature, and between chuck cylinder, also constitute annular space jacket passageway, i.e. cold fluid and hot fluid Passage is annular space chuck shape, and the heat exchange property of its relatively double pipe heat exchanger has been improved；Furthermore, The coefficient of heat transfer situation that this structure can determine according to the physical property of cold fluid and hot fluid, installs raising additional at passage The fin of gas converting heat coefficient, more adapts to gas one liquid heat exchange；Particular, it is important that at multiple chuck cylinders In the multiple cold fluid and hot fluid passages separately constituted, by center in the case of external equal in width, because of straight Footpath is gradually increased and makes passage flow sectional area naturally increase, this feature, very adapts to heat exchange The phase-state change of journey and the bigger gas volume variable condition of temperature influence.So, chuck cylinder changes The application of hot device is the most promising in the near future, but manufacture served by its special structure also band A difficult problem and trouble, one of them is between the annular space chuck of inner clip sleeve and the annular space chuck of outer clip sleeve Connectivity problem i.e. with the annular space chuck of each chuck cylinder of working medium passage be required to by flow process connect, with reality Complete different process process existing heat exchanger compact efficient.So, the chuck connectivity problem of each chuck cylinder Being exactly the connection technology problem of two concentric suit cylindrical wall ends, its manufacturing process technology is to become Can directly affect chuck cylinder heat exchanger wide variety of principal element.Develop or disclosed from present Analogous technical situation is seen, uses many jacket casings dress and forms cold and hot chamber at both ends, and this chamber manufactures work Skill is more difficult, and it is relatively low with sleeve connection intensity, is less susceptible to batch producing in serial form, such as the patent No. The manufacturing cost in chamber 14 and cold working medium next part chamber 16 is collected high and not in the cold working medium of 201210032801.7 Easily meet technical standard；For another example the patent No. 200780009294.2, co-axially around the two of exhaust passage Between individual cylindrical coolant guiding channel, i.e. outside cylinder 42A is connected to inside cylinder 42B, uses up and down Connecting tube parts 42C connects, and this connecting tube 42C produces the most difficult, assembling in actual connection Technique is extremely difficult to be reliably connected, and (domestic technique is the most not to be sewn on below 0.1mm between brazing requirements overlap joint Reach wide-gap brazing fit-up gap at below 1.5mm) it is extremely difficult；Carry out alternate manner weldering Connect and welding efficiency is low, weld strength is difficult meets requirement because workpiece complexity causes.

Summary of the invention: for solving the problems referred to above, the present invention provides a kind of novel two concentric circular barrel ends Between the connection method of flange circular hole, i.e. two flange circular holes of the cylinder end of concentric symmetry suit With the overlap joint connection of spigot-and-socket S elbow；Said two flange circular hole refers to that waney urceolus and inner core are same Flange circular hole on the urceolus of the end side that axle center symmetry is set in together and inner tube wall, wherein near being somebody's turn to do The flange circular hole of side end is end flanging circular hole, and another flange circular hole is end in-flanges circular hole；Described Two central axis of two flange circular holes on two cylindrical walls be each perpendicular to cylinder center's axis and with On cylinder center's axis in one plane and the most within the barrel one section of mandrel line；The present invention is logical Cross the flange circular hole on two cylindrical walls of the setting of i.e. staggering that techniques below scheme realizes by cylinder axial line With spigot-and-socket S elbow method of attachment it is: a termination excess of spigot-and-socket S elbow is inserted end flanging It in hole, then it is that axle rotates by spigot-and-socket S elbow according to end lateral opening center of turning up so that it is another termination Being directed at the end varus of this side lateral opening and insert, meanwhile, spigot-and-socket S elbow first inserts end and turns up Lateral opening surplus is subsequently inserted into the lateral opening insertion of end varus and reduces, the two ends of last spigot-and-socket S elbow Head becomes overlap joint connection with the flange of two flange circular holes.

Accompanying drawing explanation

Fig. 1 is the section view knot of the connection method of concentric of the present invention suit cylindrical wall end flange circular hole Structure schematic diagram

Fig. 2 is the spigot-and-socket S of the connection method of concentric of the present invention suit cylindrical wall end flange circular hole Elbow partial view to be installed M

Detailed description of the invention

As depicted in figs. 1 and 2, the cylinder of concentric symmetry suit is that urceolus 1 symmetry is enclosed within inner core 2 On, it uses socket joint with between urceolus end flanging circular hole 3 and the inner core end in-flanges circular hole 4 of end side Formula S elbow 5 overlaps connection method: a termination excess of spigot-and-socket S elbow 5 is inserted end and turns up In lateral opening 3, then by spigot-and-socket S elbow 5 according to end turn up lateral opening 3 center be that axle rotates, make Its another termination is directed at the end varus lateral opening 4 of this side and inserts, meanwhile, and spigot-and-socket S elbow 5 first insert end turn up lateral opening 3 surplus be subsequently inserted into the end insertion of varus lateral opening 4 and reduce, finally The two ends of spigot-and-socket S elbow 5 becomes to take with the flange holding turn up lateral opening 3 and end varus lateral opening 4 respectively Lead in succession.

Said two flange circular hole refers to that waney urceolus 1 and inner core 2 concentric symmetry are sleeved on one Flange circular hole on the urceolus 1 of end side risen and the barrel of inner core 2, wherein near this side end Flange circular hole is end flanging circular hole 3, and another flange circular hole is end in-flanges circular hole 4.

End in-flanges circle on the central axis of the end flanging circular hole 3 on described urceolus 1 and inner core 2 The central axis in hole 4 be respectively perpendicular to urceolus 1 or the central axis of inner core 2 and with urceolus 1 or inner core The central axis of 2 is not in one plane and at urceolus 1 or a section of the central axis of inner core 2 On.

Technique scheme is used to be easy to solve the outside cylinder of Patent No. 200780009294.2 42A is connected on inside cylinder 42B, and the two ends of spigot-and-socket S elbow is turned up lateral opening respectively with end The flange lateral opening with end varus becomes overlap joint, and it is taken, and break joint is little connects soldering strength more greatly, is particularly suitable for thin-walled The connection welding of cylinder, especially when two chuck cylinder connections, can in the two ends of spigot-and-socket S elbow again Welding, make connection mechanical strength bigger, the extensively application offer technology for chuck cylinder heat exchanger is propped up Hold.

Claims (3)

1. the connection method of concentric suit cylindrical wall end flange circular hole is: by spigot-and-socket S elbow (5) a termination excess is inserted end and is turned up in lateral opening (3), then by spigot-and-socket S elbow (5) according to end The turn up center of lateral opening (3) is that axle rotates so that it is another termination is directed at the end in-flanges of this side Hole (4) is also inserted, and meanwhile, spigot-and-socket S elbow (5) first inserts end and turns up lateral opening (3) Surplus is subsequently inserted into the insertion of end varus lateral opening (4) and reduces, last spigot-and-socket S elbow (5) Two ends is turned up with end respectively lateral opening (3) and holds the flange of varus lateral opening (4) to become overlap joint connection.

2. concentric is set with the connection method of cylindrical wall end flange circular hole as claimed in claim 1, It is characterized in that, said two flange circular hole refers to that waney urceolus (1) and inner core (2) are coaxial Flange circular hole on the urceolus (1) of the end side that heart symmetry is set in together and the barrel of inner core (2), Wherein the flange circular hole near this side end is end flanging circular hole (3), and another flange circular hole is in end Flange circular hole (4).

3. concentric is set with the connection method of cylindrical wall end flange circular hole as claimed in claim 1, It is characterized in that, the central axis of end flanging circular hole (3) on described urceolus (1) and inner core (2) On the central axis of end in-flanges circular hole (4) be respectively perpendicular in urceolus (1) or inner core (2) Mandrel line and with the central axis of urceolus (1) or inner core (2) in one plane and not in urceolus (1) Or on a section of the central axis of inner core (2).