CN209310576U - Floating head heat exchanger with dual-seal - Google Patents

Abstract

The utility model relates to technical field of heat exchange equipment, and disclose a kind of floating head heat exchanger with dual-seal, big floating head and linkage including being mounted on shell and the outside cover cavity, the shell is connect with outer skull by flange seal, the internal activity of the shell is set with baffle plate, and the middle part fixing sleeve of the baffle plate is equipped with tube bank.The floating head heat exchanger with dual-seal, pass through the dual insulating effect raised the nose above water to breathe greatly with small floating head, the sealing effect of tube bank and floating head can be improved, it is raised the nose above water to breathe between small floating head by the fluid leakage in tube bank or shell to big, after entering box body by fluid, box body moves down so that sealing-plug blocks outflow tube, convenient for according to the substantially reduction of the fluid flow at outflow tube, it is revealed at interior of shell floating head to determine, it is repaired so as to first time pass hull closure, two kinds of fluid composite pollutions for preventing heat exchange, influence the subsequent use of fluid.

Description

Floating head heat exchanger with dual-seal

Technical field

The utility model relates to technical field of heat exchange equipment, specially a kind of floating head heat exchanger with dual-seal.

Background technique

The equipment that the partial heat of hot fluid is passed to cold fluid when heat exchanger is widely used in chemical industry, petroleum, moves In the fields such as power, food processing, heat exchanger includes fixed tube-sheet exchanger, U-tube sheet heat exchanger, floating head heat exchanger etc., The advantages that middle floating head heat exchanger tube bank can extract out, be convenient for cleaning, and medium literary grace is unrestricted, therefore application is more extensive.

However, being sealed between the floating head and floating tubesheet of existing floating head heat exchanger by floating head gasket, raising the nose above water to breathe In heat exchanger use process, floating head gasket may be damaged because the factors such as medium, temperature influence, and the fluid inside tube bank is caused to be let out Dew, so that the fluid of heat exchanging pollutes, although some floating head heat exchangers improve floating head using measures such as dual-seals Sealing effect is only to reduce leakage probability, extraneous when revealing at floating head due to the inside for raising the nose above water to breathe to be located at shell Operator cannot understand leak case in time, lead to the fluid cross contamination of heat exchange, influence the subsequent use of fluid.

Utility model content

The utility model provides a kind of floating head heat exchanger with dual-seal, has the sealing effect at floating head heat exchanger Fruit is good and understands the advantages of whether revealing at floating head in time convenient for external operation personnel, solves the floating of existing floating head heat exchanger It is sealed between head and floating tubesheet by floating head gasket, in floating head heat exchanger use process, floating head gasket may be because being situated between The factors such as matter, temperature are influenced and are damaged, and lead to the fluid leakage inside tube bank, so that the fluid of heat exchanging pollutes, although Some floating head heat exchangers improve the sealing effect of floating head using measures such as dual-seals, are only to reduce leakage probability, by In the inside for raising the nose above water to breathe to be located at shell, when revealing at floating head, external operation personnel cannot understand leak case in time, cause The fluid cross contamination of heat exchange, the problem of influencing the subsequent use of fluid.

The utility model provides the following technical solutions: a kind of floating head heat exchanger with dual-seal, including is mounted on outer The big floating head and linkage, the shell of shell and the outside cover cavity are connect with outer skull by flange seal, the shell Internal activity be set with baffle plate, the middle part fixing sleeve of the baffle plate is equipped with tube bank, the fixed suit in one end of the tube bank There is floating tubesheet, the floating tubesheet raises the nose above water to breathe to connect by flange seal with big, and is equipped between floating tubesheet and big floating head close Seal is fixedly connected to connecting shaft at the top and bottom of the big floating head inner cavity, and one end of two connecting shafts is fixed to be connected It is connected to small floating head, the side of the floating tubesheet offers inside groove, one end of the small floating head and inside groove pivot bush unit, and small floating The internal activity of head is set with the floating head gasket contacted with inside groove, and the equal fixing sleeve in middle part of the big floating head front and back is equipped with Rotary joint, one end of two rotary joints are sealedly connected with conduit, and one end fixing sleeve of two conduits is equipped with Box body is fixedly connected at the top of the box body there are two locating piece, and the linkage includes being fixedly set in inside outer skull Locating shaft and limit axis, the first interlocking lever is movably installed in the middle part of the locating shaft, the both ends for limiting axis are movable It is set with the second interlocking lever, one end of two second interlocking levers and one end pivot bush unit of the first interlocking lever, described in two The other end of second interlocking lever is movably installed with plug respectively, one end of two plugs respectively with two locating piece thread bush It connects, the other end movable sleeve of first interlocking lever is connected to couple axle, and the bottom end of the couple axle is movably installed with sealing-plug, institute The bottom fixing sleeve for stating outer skull is equipped with the outflow tube being located at immediately below sealing-plug, side of the cover top portion far from outer skull Fixing sleeve is equipped with influent stream pipe.

Optionally, the front of the outside cover cavity and the positive distance values 6-10cm of floating tubesheet.

Optionally, one end of the tube bank extends to the inside of small floating head, and one end of the small floating head extends to big floating head Outside.

Optionally, between the inside groove and small floating head floating head gasket quantity be two, and it is small floating head with floating head gasket with And it is in close contact between the inner wall of inside groove.

Optionally, fixing sleeve is equipped with passive ring flat-plate on the rotation pipe of the rotary joint, and the side of the passive ring flat-plate is solid Surely it is connected with torsional spring, the torsional spring movable set is on rotary joint, and torsional spring is connected with far from one end of passive ring flat-plate Fixture block, one end of the fixture block are fixedly connected with the surface raised the nose above water to breathe greatly, and notch compatible with one end of torsional spring is offered on fixture block.

Optionally, the top of the box body is located at the lower section at big top of raising the nose above water to breathe, and the inner wall of box body and the surface raised the nose above water to breathe greatly It does not contact.

Optionally, the center of the locating shaft and restriction axis is in the same plane, and the locating shaft is interlocked close to second The side of bar, the restriction axis is close to the side of plug.

Optionally, the side of the remotely located axis of the second interlocking lever offers sliding slot, and sliding slot and plug pivot bush unit.

Optionally, the two sides of the sealing-plug are fixedly connected to limited block, and the middle part of two limited blocks is lived respectively Dynamic to be set with fixing axle, the top of two fixing axles is fixedly connected with block, and two fixing axles are located at outflow tube Two sides.

The utility model have it is following the utility model has the advantages that

1, the floating head heat exchanger with dual-seal can be improved by the dual insulating effect raised the nose above water to breathe greatly with small floating head Tube bank and the sealing effect raised the nose above water to breathe raise the nose above water to breathe to pass through fluid between small floating head by the fluid leakage in tube bank or shell to big Into after box body, box body is moved down so that sealing-plug blocks outflow tube, convenient for according to the substantially reduction of the fluid flow at outflow tube, It reveals at interior of shell floating head to determine, is repaired so as to first time pass hull closure, prevent two kinds of heat exchange Fluid composite pollution influences the subsequent use of fluid.

2, the floating head heat exchanger with dual-seal, by small floating head be fixedly mounted it is big raise the nose above water to breathe it is internal, it is big raise the nose above water to breathe with While floating tubesheet is sealed, small floating head also forms sealing with floating tubesheet, to reduce the installation of floating head heat exchanger Step, so that while dual-seal, without being sealed again with bolt, thus when not increasing the assembling of floating head heat exchanger Between.

Detailed description of the invention

FIG. 1 is a schematic structural view of the utility model；

Fig. 2 is the cut away view of the big floating head of the utility model structure；

Fig. 3 is the top view of the big floating head of the utility model structure；

Fig. 4 is enlarged diagram at the A of the utility model structure chart 3；

Fig. 5 is the utility model structure linkage schematic diagram；

Fig. 6 is the top view of the second interlocking lever of the utility model structure.

In figure: 1, shell；2, outer skull；3, baffle plate；31, it restrains；32, floating tubesheet；33, inside groove；34, it raises the nose above water to breathe to pad Piece；4, big to raise the nose above water to breathe；41, connecting shaft；42, small floating head；43, rotary joint；431, passive ring flat-plate；432, torsional spring；433, fixture block； 44, conduit；45, box body；46, locating piece；5, sealing ring；6, linkage；61, locating shaft；62, the first interlocking lever；63, it limits Axis；64, the second interlocking lever；65, plug；66, couple axle；67, sealing-plug, 671, limited block；672, fixing axle；673, block； 7, outflow tube；8, influent stream pipe.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

Fig. 1-6, a kind of floating head heat exchanger with dual-seal are please referred to, including is mounted on shell 1 and outer 2 inner cavity of skull Big floating head 4 and linkage 6, shell 1 connect with outer skull 2 by flange seal, the positive and floating of outer 2 inner cavity of skull The positive distance values 6-10cm of tube sheet 32, by reserving mobile bar space, it is ensured that the arm of operator can deep enough the outside lid 2 Between floating tubesheet 32, so that the hand of operator can touch plug 65 and dismount in floating head heat exchanger dismounting Operation, the internal activity of shell 1 are set with baffle plate 3, and the middle part fixing sleeve of baffle plate 3 restrains 31 one end equipped with tube bank 31 The inside of small floating head 42 is extended to, one end of small floating head 42 extends to the outside of big floating head 4, in big floating head 4 and floating tubesheet 32 When being sealed, one end of small floating head 42 is located in the inside groove 33 on floating tubesheet 32, thus simultaneously to big 4 and the small floating head of raising the nose above water to breathe 42 are sealed, and improve the packaging efficiency of floating head heat exchanger, and one end fixing sleeve for restraining 31 is equipped with floating tubesheet 32, and float pipe Plate 32 is connect with big floating head 4 by flange seal, and sealing ring 5 is equipped between floating tubesheet 32 and big floating head 4, in big floating head 4 Connecting shaft 41 is fixedly connected at the top and bottom of chamber, one end of two connecting shafts 41 is fixedly connected with small floating head 42, floats The side of tube sheet 32 offers inside groove 33, and the quantity of floating head gasket 34 is two between inside groove 33 and small floating head 42, and small floating head It is in close contact between 42 and floating head gasket 34 and the inner wall of inside groove 33, passes through bolt with floating tubesheet 32 in big floating head 4 and carry out When tightening fixed, utilize at least two floating head gaskets 34, it is ensured that it is small raise the nose above water to breathe 42 with the inner wall of floating head gasket 34 and inside groove 33 it Between can be in close contact, to realize good sealing effect, it is small raise the nose above water to breathe 42 one end and 33 pivot bush unit of inside groove, and small floating head 42 internal activity is set with the floating head gasket 34 contacted with inside groove 33, the fixed suit in the middle part of big 4 front and backs of raising the nose above water to breathe There is rotary joint 43, fixing sleeve is equipped with passive ring flat-plate 431 on the rotation pipe of rotary joint 43, and the side of passive ring flat-plate 431 is fixed It is connected with torsional spring 432,432 movable set of torsional spring is on rotary joint 43, and the one end of torsional spring 432 far from passive ring flat-plate 431 is living Dynamic to be connected with fixture block 433, one end of fixture block 433 is fixedly connected with the surface of big floating head 4, offers on fixture block 433 and torsional spring 432 One end of torsional spring 432 is placed on fixture block 433 by the compatible notch in one end when the heat exchanging fluid inside shell 1 is hot gas Notch in, utilize the twisting force of torsional spring 432, it is ensured that empty box body 45 is in suspended state, thus using in box body 45 Portion's water inlet, 45 gravity of box body increase and move down, and control sealing-plug 67 by linkage 6 and block outflow tube 7, so that going out to flow Thermal fluid flow at pipe 7 substantially reduces, and blocks at 1 inside floating head of shell to determine, so that operator is shut down in time Maintenance, and the double sealing effect of the small floating head 42 of big 4 sums of raising the nose above water to breathe, it is ensured that when raising the nose above water to breathe to reveal at one, heat exchanging fluid will not be dirty Dye, one end of two rotary joints 43 are sealedly connected with conduit 44, and one end fixing sleeve of two conduits 44 is equipped with box body 45, box The top of body 45 is positioned at the lower section at big 4 tops of raising the nose above water to breathe, and the inner wall of box body 45 is not contacted with the surface of big floating head 4, it is ensured that leakage After liquid fluid inside to big floating head 4 enters box body 45, box body 45 can be filled up, it is ensured that the distance that box body 45 moves down is enough Greatly, so that controlling sealing-plug 67 blocks outflow tube 7, the top of box body 45 is fixedly connected there are two locating piece 46, and linkage 6 wraps It includes the locating shaft 61 being fixedly set in inside outer skull 2 and limits axis 63, the center of locating shaft 61 and restriction axis 63 is located at same In plane, locating shaft 61 limits axis 63 close to the side of plug 65, so that box body 45 is under close to the side of the second interlocking lever 64 When shifting, the second interlocking lever 64 is larger far from the distance value that 65 one end of plug deviates, when 45 offset distance of box body is lesser, really Secrecy blocking 67 can block outflow tube 7, and the middle part of locating shaft 61 is movably installed with the first interlocking lever 62, limit the both ends of axis 63 It is movably installed with the second interlocking lever 64, the side of the remotely located axis 61 of the second interlocking lever 64 offers sliding slot, and sliding slot and inserts 65 pivot bush unit of bolt, when tube bank 31 is affected by temperature expansion, the horizontal sliding in sliding slot of plug 65 not will lead to sealing-plug 67 It is mobile, the normal drainage of outflow tube 7 is impacted, one end of one end of two the second interlocking levers 64 and the first interlocking lever 62 is living Dynamic socket, the other end of two the second interlocking levers 64 are movably installed with plug 65 respectively, and one end of two plugs 65 is respectively with two A 46 screw thread of locating piece socket, the other end movable sleeve of the first interlocking lever 62 are connected to couple axle 66, the bottom end activity of couple axle 66 It is set with sealing-plug 67, the two sides of sealing-plug 67 are fixedly connected to limited block 671, and the middle part of two limited blocks 671 is lived respectively Dynamic to be set with fixing axle 672, the top of two fixing axles 672 is fixedly connected with block 673, and two fixing axles 672, which are located at, to flow The two sides of pipe 7 drive in 67 folding process of sealing-plug in couple axle 66, and sealing-plug 67 is in stable state always, it is ensured that sealing Plug 67 can be applied to outflow tube 7, and the bottom fixing sleeve of outer skull 2 is equipped with the outflow tube 7 being located at immediately below sealing-plug 67, shell 1 top is equipped with influent stream pipe 8 far from the side fixing sleeve of outer skull 2.

In use, firstly, when hot fluid inside shell 1 is liquid, using hot fluid to the buoyancy of box body 45, so that Box body 45 is located at the side of big floating head 4, and at small floating head 42 when cold fluid leakage, the cold fluid of leakage enters in big floating head 4, and Box body 45 is filled up by rotary joint 43 and conduit 44, so that the gravity of box body 45 is significantly increased, box body 45 is moved down, so that second Interlocking lever 64 is moved down close to one end of plug 65, and the other end of the second interlocking lever 64 drives one end of the first interlocking lever 62 to move up, The other end of first interlocking lever 62 drives couple axle 66 to move down, so that sealing-plug 67 blocks outflow tube 7, the fluid at outflow tube 7 Flow substantially reduces, so that it is determined that the floating head inside shell 1 leaks, then, leakage of thermal fluid inside shell 1 is to big When in raising the nose above water to breathe, effect is same as above, finally, one end of torsional spring 432 is placed in fixture block 433 when the hot fluid inside shell 1 is gas Notch at, using the twisting force of torsional spring 432 so that sylphon body 45 be located at it is big raise the nose above water to breathe 4 side, principle when leakage is such as On.

It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment Intrinsic element.

While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.

Claims (9)

1. the floating head heat exchanger with dual-seal, it is characterised in that: including being mounted on shell (1) and outer skull (2) inner cavity Big floating head (4) and linkage (6), the shell (1) are connect with outer skull (2) by flange seal, the shell (1) Internal activity is set with baffle plate (3), and the middle part fixing sleeve of the baffle plate (3) is equipped with tube bank (31), the tube bank (31) One end fixing sleeve is equipped with floating tubesheet (32), and the floating tubesheet (32) is connect with big floating head (4) by flange seal, and is floated Sealing ring (5) are equipped between tube sheet (32) and big floating head (4), are fixedly connected at the top and bottom of described big floating head (4) inner cavity Have connecting shaft (41), one end of two connecting shafts (41) is fixedly connected with small floating head (42), the floating tubesheet (32) Side offers inside groove (33), one end of the small floating head (42) and inside groove (33) pivot bush unit, and the inside of small floating head (42) It is movably installed with the floating head gasket (34) contacted with inside groove (33), the equal fixing sleeve in middle part of described big (4) front and back of raising the nose above water to breathe Equipped with rotary joint (43), one end of two rotary joints (43) is sealedly connected with conduit (44), two conduits (44) one end fixing sleeve is equipped with box body (45), is fixedly connected with that there are two locating piece (46) at the top of the box body (45), described Linkage (6) includes being fixedly set in the internal locating shaft (61) of outer skull (2) and limiting axis (63), the locating shaft (61) Middle part be movably installed with the first interlocking lever (62), it is described limit axis (63) both ends be movably installed with the second interlocking lever (64), one end pivot bush unit of one end Yu the first interlocking lever (62) of two second interlocking levers (64), two described second The other end of interlocking lever (64) is movably installed with plug (65) respectively, and one end of two plugs (65) is positioned with two respectively The socket of block (46) screw thread, the other end movable sleeve of first interlocking lever (62) are connected to couple axle (66), the couple axle (66) Bottom end be movably installed with sealing-plug (67), the bottom fixing sleeve of the outer skull (2), which is equipped with, to be located at immediately below sealing-plug (67) Outflow tube (7), the side fixing sleeve far from outer skull (2) is equipped with influent stream pipe (8) at the top of the shell (1).

2. the floating head heat exchanger according to claim 1 with dual-seal, it is characterised in that: in the outer skull (2) Front and floating tubesheet (32) positive distance values 6-10cm of chamber.

3. the floating head heat exchanger according to claim 1 with dual-seal, it is characterised in that: the one of the tube bank (31) End extends to the inside of small floating head (42), and described small one end for raising the nose above water to breathe (42) extends to the outside of big floating head (4).

4. the floating head heat exchanger according to claim 1 with dual-seal, it is characterised in that: the inside groove (33) with it is small The quantity of floating head gasket (34) between (42) of raising the nose above water to breathe is two, and small raise the nose above water to breathe (42) and floating head gasket (34) and inside groove (33) It is in close contact between inner wall.

5. the floating head heat exchanger according to claim 1 with dual-seal, it is characterised in that: the rotary joint (43) Rotation pipe on fixing sleeve passive ring flat-plate (431) are housed, the side of the passive ring flat-plate (431) is fixedly connected with torsional spring (432), Torsional spring (432) movable set is on rotary joint (43), and one end activity of the torsional spring (432) far from passive ring flat-plate (431) It is connected with fixture block (433), one end of the fixture block (433) is fixedly connected with the big surface for raising the nose above water to breathe (4), and fixture block opens up on (433) There is notch compatible with torsional spring (432) one end.

6. the floating head heat exchanger according to claim 1 with dual-seal, it is characterised in that: the top of the box body (45) Portion is located at the lower section at the top of big floating head (4), and the inner wall of box body (45) is not contacted with the big surface for raising the nose above water to breathe (4).

7. the floating head heat exchanger according to claim 1 with dual-seal, it is characterised in that: the locating shaft (61) and The center for limiting axis (63) is in the same plane, side of the locating shaft (61) close to the second interlocking lever (64), the limit Side of the dead axle (63) close to plug (65).

8. the floating head heat exchanger according to claim 1 with dual-seal, it is characterised in that: second interlocking lever (64) side of remotely located axis (61) offers sliding slot, and sliding slot and plug (65) pivot bush unit.

9. the floating head heat exchanger according to claim 1 with dual-seal, it is characterised in that: the sealing-plug (67) Two sides are fixedly connected to limited block (671), and the middle part of two limited blocks (671) is movably installed with fixing axle respectively (672), the top of two fixing axles (672) is fixedly connected with block (673), and two fixing axles (672) are located at The two sides of flow tube (7).