CN103575156A - Heat exchanger - Google Patents
Heat exchanger Download PDFInfo
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- CN103575156A CN103575156A CN201210251139.4A CN201210251139A CN103575156A CN 103575156 A CN103575156 A CN 103575156A CN 201210251139 A CN201210251139 A CN 201210251139A CN 103575156 A CN103575156 A CN 103575156A
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- heat exchanger
- deflection plate
- tube
- shell
- movable
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
- F28F13/06—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media
- F28F13/12—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media by creating turbulence, e.g. by stirring, by increasing the force of circulation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/08—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being otherwise bent, e.g. in a serpentine or zig-zag
- F28D7/082—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being otherwise bent, e.g. in a serpentine or zig-zag with serpentine or zig-zag configuration
- F28D7/085—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being otherwise bent, e.g. in a serpentine or zig-zag with serpentine or zig-zag configuration in the form of parallel conduits coupled by bent portions
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/16—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation
- F28D7/1607—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation with particular pattern of flow of the heat exchange media, e.g. change of flow direction
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/16—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation
- F28D7/1615—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation the conduits being inside a casing and extending at an angle to the longitudinal axis of the casing; the conduits crossing the conduit for the other heat exchange medium
- F28D7/1623—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation the conduits being inside a casing and extending at an angle to the longitudinal axis of the casing; the conduits crossing the conduit for the other heat exchange medium with particular pattern of flow of the heat exchange media, e.g. change of flow direction
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F19/00—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers
- F28F19/008—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers by using scrapers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/22—Arrangements for directing heat-exchange media into successive compartments, e.g. arrangements of guide plates
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
- F28G1/00—Non-rotary, e.g. reciprocated, appliances
- F28G1/08—Non-rotary, e.g. reciprocated, appliances having scrapers, hammers, or cutters, e.g. rigidly mounted
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
- F28G3/00—Rotary appliances
- F28G3/10—Rotary appliances having scrapers, hammers, or cutters, e.g. rigidly mounted
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
- F28D2021/0045—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for granular materials
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
- F28D2021/0059—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for petrochemical plants
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
- F28G1/00—Non-rotary, e.g. reciprocated, appliances
- F28G1/14—Pull-through rods
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention relates to a tubular heat exchanger. Scaling is the most common problem in the working process of a heat exchanger. The scaling is particularly serious in coal chemical industry and petrochemical industry devices due to the facts that materials are viscous and low in flow velocity and has the heterogeneous characteristics. The shell side of a shell and tube heat exchanger is provided with a spiral baffle plate and accordingly the flowing dead zone can be eliminated and the scaling can be reduced. But the low flow velocity area and the scaling are still formed in the boundary area of the spiral baffle plate and a heat exchange tube. The shell side is provided with the shell and tube heat exchanger which can move along the heat exchange tube in a reciprocating mode and prevent the scaling and the plate from being scraped and accordingly the problem of the scaling is solved in a certain extent. But a fixed baffle plate which is complicated in structure is still retained in the heat changer and accordingly the dead corner where the scaling is formed is still reserved. According to the tubular heat exchanger, a flexible spiral baffle plate which can be driven by a driving device to move is arranged in a material flowing channel of the hear exchanger area of the heat exchanger and accordingly the problem of the scaling of the heat exchanger is thoroughly solved.
Description
Technical field
The present invention relates to a kind of heat exchanger.
Background technology
Scale problems is one of modal problem in the heat exchanger course of work, and it can cause reduction of heat exchange efficiency, the adverse consequences such as heat exchange manifold obstruction and the damage of heat exchanger hot-spot.In Coal Chemical Industry, petrochemical plant, due to material thickness, flow velocity is low and the anisotropic property of material, scale problems is especially serious, to such an extent as to become, restriction is efficient, stable, long-term, the bottleneck problem of safety in production.
Heat exchanger produces the reason of fouling except the institute of the physicochemical property decisive factor of material itself own, also has close relationship with the structure of heat exchanger.Such as in conventional tube shell heat exchanger, arc, the disc deflection plate of normal employing in shell side, deflection plate and housing junction tool exist and flow in " dead band ", easily tie dirt.
Patent document CN1719187A and CN1529113A disclose a kind of helical baffles, are respectively continuous helicals and by the fan-shaped intermittent spiral forming of a plurality of curved surfaces, can eliminate flow dead, reduce fouling.But; still there is low flow velocity region in the region in helical baffles and heat exchanger tube boundary; still there is scale problems; particularly when the material passing through is the slurry material that contains solid particle; during such as water-coal-slurry; because solid particle is easy to deposit, and solid particle also can suppress the formation of turbulent flow, is therefore more prone to occur serious scale.
Patent document CN101799255A disclose a kind of can be along the shell-and-tube heat exchanger of the reciprocating good antiscale property scraper plate of heat exchanger tube shell side being provided with.This technical scheme has solved the scale problems of heat exchanger to a certain extent from other thinking, but in heat exchanger, has still retained fixedly deflection plate, and complex structure still leaves the dead angle of understanding fouling.In addition, the wearing and tearing between heat exchanger tube and scraper plate may cause heat exchanger tube to damage, and maintenance rate is raise and increase maintenance cost.
Summary of the invention:
The invention discloses a kind of pipe heat exchanger, its special character is that the movable helical baffles that can move under drive unit drives is set in the Flow of Goods and Materials passage in heat exchanger heat exchange region.
Described pipe heat exchanger comprises shell-and-tube heat exchanger, double pipe heat exchanger, immersion coil heat exchanger and fountain coil heat exchanger.
Described material according to the different application of equipment sometimes also referred to as medium.
Described material comprises various fluid foods or other materials with adequate liquidity being formed by liquid, solid and gas and any combination thereof.
Described fluid foods comprises liquid, the gas consisting of single homogeneous phase and the solid particle material with adequate liquidity, the biphase gas and liquid flow that comprise the slurry that consists of solid-liquid two-phase, emulsion that two or more inconsistent liquid phase forms, consists of gas-liquid two-phase is if boiling liquid or steam fog, the Dual-Phrase Distribution of Gas olid that consists of gas-solid two-phase are if dust, the gas-solid-liquid three-phase flow that consists of gas-solid-liquid three-phase are as humidifying dust, fluid foods, also comprises the supercritical fluid just developing at Peng Bo.
Described spiral deflection plate has continuously and discontinuous two kinds of forms, and preferred version is continuous helical form.
In order to keep the form of spiral, helical baffles can be strengthened by a central connecting rod.The deflection plate that screw diameter is larger can also arrange several periphery connecting rods except central connecting rod.For because spatial constraints can not arrange the situation of central connecting rod, also can only establish several periphery connecting rods.
Different with kind according to the shape of heat exchanger, the motion mode of movable deflection plate comprises along spiral axis direction and moves back and forth and rotate around spiral axis.
When movable deflection plate adopts the mode moving along spiral axis direction, the circle that its shift motion should be more than or equal to spiral is high.
For shell-and-tube heat exchanger, described Flow of Goods and Materials passage comprises shell side and tube side, when the material of heat exchanger shell pass circulation is easy to fouling, can movable deflection plate be set at shell side.When the material of heat exchanger tube pass circulation is easy to fouling equally, can movable deflection plate be set equally at tube side.The movable deflection plate of tube side has many groups conventionally.
In order to distinguish above two kinds of deflection plates, act on the movable deflection plate of deflection plate called after shell side of heat exchanger shell pass, act on the movable deflection plate of deflection plate called after tube side of heat exchanger tube pass.
The motion mode of the movable deflection plate of tube side can adopt the portable motion mode moving back and forth along spiral axis direction, also can adopt the rotate-stationary mode mode around the rotation of spiral axis.Consider the complexity and the long-term reliability of operation that drive the movable deflection plate of a plurality of tube sides to move simultaneously simultaneously, adopt portable motion mode for preferred.The movable deflection plate of a plurality of tube sides connects each center rod by a terminal pad and connects into as a whole.
If the movable deflection plate of tube side adopts rotate-stationary mode mode, can consider with sun gear or the synchronous movable deflection plate of a plurality of tube sides that drives of chain gear transmission mode.If what tube side passed through is to have the slurry material that easily causes wearing and tearing, transmission position should be isolated by position is relative with material, and the balanced fluid that is difficult for causing transmission device wearing and tearing is set at transmission position.
Due to the restriction of many heat exchanger tubes to deflection plate, the motion mode of the movable deflection plate of shell side can only adopt move mode.
The drive unit of deflection plate can be arranged on outside heat exchanger vessel, also can be arranged in heat exchanger vessel.For guarantee movable deflection plate operation reliably and with long-term and be easy to maintenance, the drive unit of deflection plate is preferably arranged on outside heat exchanger vessel, and drive unit is rolled over the central connecting rod of active flow plate by the perforation connecting rod through container and shell side or is connected the connection of the terminal pad of the movable deflection plate of each tube side central authorities connecting rod.
Heat exchanger vessel refers to the shell of heat exchanger, for shell-and-tube heat exchanger, generally includes shell and end socket.
In order to guarantee to connect seal between connecting rod and heat exchanger vessel, between perforation connecting rod and heat exchanger vessel, hydraulic pressure movable sealing is set.
In order to stop the solid particle in shell to invade the gap of sealing when attaching parts are moved, in movable sealing heat exchanger vessel inner side, the sphere filter that stops solid particle is set.
In order further to stop stably in a long term the solid particle in heat exchanger vessel, when moving, attaching parts invade the gap of sealing, heat exchanger vessel inner side in movable sealing, the arranged outside transition gap band of sphere filter, and have a mind to allow the highly pressurised liquid in hydraulic pressure movable sealing controlledly to heat exchanger vessel inner side, slowly leak.
For fear of movable deflection plate and tube bank tube wall or directly wearing and tearing of shell tube wall generation, between deflection plate and above-mentioned tube wall, leave gap, during work, the short-circuit flow in these gaps can suppress gathering of fouling.
For fear of tube bank, movable deflection plate and shell, under Action of Gravity Field, be out of shape, affect the fit clearance between them, heat exchanger adopts upright mode, and drive unit is positioned at the upper end of heat exchanger.
Tube bank is sometimes also referred to as heat exchanger tube or heat-exchange tube, and three nouns implication in shell-and-tube heat exchanger is identical.
Because the movement velocity of deflection plate in heat exchanger should not be too fast.In fact, each shuttling movement cycle from a few minutes can meet the needs of eliminating precipitation and fouling by several hours.The too fast motion of deflection plate may cause heat exchanger and the disadvantageous pressure oscillation of other corollary equipments or pressure to change.The multiple reciprocating mechanical actuation device at a slow speed that can provide all can adopt, and preferably adopts the reciprocating motion that is driven portable shell side deflection plate and tube side deflection plate by hydraulic means here.
In order to make to enter the material distributed uniform of heat exchanger tube pass and to prevent its precipitation fouling, distributor adopts circle shaped tube type, and makes input pipe enter ring pipe with tangential way.
The tube bundle deformation causing for fear of differential thermal expansion damages, and temperature compensation device preferably adopts floating head type temperature compensation technical scheme.
As longer in heat exchanger length, for avoiding long tube bundle deformation to cause the poor fit between tube bank and shell side deflection plate or tube side deflection plate, produce friction damage, can one or several tube bank and shell side deflection plate bracing frames be set at heat exchanger mid portion, shell side deflection plate is divided into discontinuous several sections by this bracing frame like this, between each section, by central connecting rod and periphery connecting rod, is connected.
For sleeve type heat exchanger, movable helical baffles technical scheme is applicable equally, and the deflection plate being just positioned at outside heat exchanger tube can not arrange central connecting rod, and can only adopt periphery connecting rod to strengthen, and periphery connecting rod be take two above as preferred.In fact, double pipe heat exchanger also can be regarded the shell-and-tube heat exchanger that tube side only has a heat-exchange tube as.The movable helical baffles motion mode of sleeve type heat exchanger heat-exchanging tube both sides all can adopt move mode or rotation mode.
For immersion coil heat exchanger and fountain coil heat exchanger, only can be set to its straight-tube portion as heat exchange region, and in straight-tube portion inside, movable helical baffles is set.
Advantage of the present invention:
Movable deflection plate can be strengthened the turbulent flow in heat exchanger tube lacuna, and can make the strongest region of turbulent flow periodic variation in heat exchanger, when improving heat exchange efficiency, can prevent from producing fouling at low speed flow region.The larger effect of movable deflection plate can be embodied in place, gap between reserved deflection plate and duct wall a small amount of short circuit material flow can occur, thereby the relative flow at high speed of the material at the place that gaps, the fouling that is tending towards forming is produced to periodic scavenging action, this scavenging action can not cause the direct mechanical wearing and tearing of tube wall and deflection plate, with this maintenance maintenance cycle of extension device greatly.In addition, if because accidental reason has formed thicker fouling in part, also can, to the timely mechanical curettage of dirt, prevent that its accumulation is fixed in the active procedure of deflection plate.
In addition, this invention can avoid easily occurring to the movement by helical baffles unexpected obstruction that separated heterogeneous body material produces deposition and therefore causes when by heat exchanger.
Accompanying drawing explanation
Partly cut-away's perspective view that accompanying drawing 1 is shell-and-tube heat exchanger
Accompanying drawing 2 is shell-and-tube heat exchanger partly cut-away material path perspective view
Accompanying drawing 3 is shell-and-tube heat exchanger shell side deflection plate system perspective view
Accompanying drawing 4 is pipe for shell-and-tube exchanger journey deflection plate system perspective view
Accompanying drawing 5 is shell-and-tube heat exchanger ring-type shunting chamber partly cut-away perspective view
Accompanying drawing 6 is the three-dimensional cut-away diagram of shell-and-tube heat exchanger end socket, baffle plate and deflection plate connecting rod passage
Accompanying drawing 7 is shell-and-tube heat exchanger deflection plate connecting rod channel seal structural upright cut-away diagram
Accompanying drawing 8 is shell-and-tube heat exchanger heat exchanger tube flow-guiding mouth schematic perspective view
Partly cut-away's perspective view that accompanying drawing 9 is double pipe heat exchanger
Accompanying drawing 10 is cut perspective view open for double pipe heat exchanger tube chamber path
Accompanying drawing 12 is double pipe heat exchanger inner tube deflection plate system perspective view
Accompanying drawing 13 is double pipe heat exchanger central authorities generalized sections
Accompanying drawing 15 is that the heat exchanger being comprised of three double pipe heat exchanger unit combines
Accompanying drawing 16 is for to cut perspective view open with the fountain coil heat exchanger of helical baffles
Accompanying drawing 17 is for to cut perspective view open with the immersion coil heat exchanger of helical baffles
The specific embodiment
embodiment 1
Shell-and-tube heat exchanger with shell side displaced spirals deflection plate and tube side displaced spirals deflection plate.
Referring to accompanying drawing 1.This device comprises the chief components such as shell 11, baffle plate 12, end socket 13, heat exchanger tube 14, annular current divider 15, shell side displaced spirals deflection plate assembly 16, tube side displaced spirals deflection plate assembly 17, hydraulic pressure dynamic sealing assembly 18.
Referring to accompanying drawing 1-2.On shell 11, be provided with shell side charging aperture 111, shell side charging aperture 111 is tangential direction with a short pipe and is communicated with shell inner chamber, and its sensing is identical with the hand of helix of shell side displaced spirals deflection plate.In order to reduce the impact wear of charging aperture place material to local heat exchanger tube, can be set to shell charging aperture place tube chamber and increase slightly, thereby make material enter twist tube chamber from surrounding.Shell side discharging opening 112 is positioned at shell lower end.Deflection both sides, shell bottom a tube side charging aperture 113 is respectively set.
Referring to accompanying drawing 8.In order to allow the interior formation rotating flow in the chamber 133 of confluxing surrounding at baffle plate 12 and end socket 13 from the tube side material of baffle plate perforate 121 outflows, to prevent that material is in the interior generation particle deposition in the chamber 133 of confluxing or fouling, upside at opening 121 arranges directed spout 123, and all directed spouts 123 are consistent points to the concentrically ringed tangential direction that baffle plate center line 124 is the center of circle of take at its place.
Referring to accompanying drawing 2,6 and 7.End socket 13 is positioned at baffle plate top, is roughly half cavity annular, surrounds the semi-circular chamber 133 of confluxing with baffle plate 12.End socket 13 arranged outside discharging openings 131, tube side discharging opening 131 is tangential direction with a short pipe and is communicated with the chamber 133 of confluxing.At semi-ring central part, along semi-ring axis direction, mesotube perforation 132 is set, for baffle plate mesotube 122, passes and be connected with baffle plate mesotube 122 is airtight.Two connecting rod perforating canals 134 are set on semi-ring top, for two, connect connecting rod 1802 and pass.
Referring to accompanying drawing 2 and 3.Many heat exchanger tubes 14 are through the through holes 1611 on shell side displaced spirals deflection plate, and upper end is by the tube side in baffle plate 13 and end socket the conflux airtight connection in chamber 133, lower end and the 15 shunting airtight connections in chamber 154 of annular current divider.
Referring to accompanying drawing 2 and 5.Annular current divider 15 is positioned at the nearly lower end of shell inner chamber, and surrounding and shell are slidably connected.The shunting chamber 154 of annular current divider 15 respectively with airtight connection of tube chamber of heat exchanger tube 14, and by two feed pipes 151 two airtight connections of tube side charging aperture 113 with deflection both sides, shell bottom.Feed pipe is flexible duct, the outer lower side of annular current divider 15 with at annular current divider 15, be that tangential direction is airtight to be communicated with.Annular current divider 15 inner chambers arrange tube side deflection plate steady rest 153.Annular current divider central authorities arrange shell side deflection plate steady rest 152, and the gap of passing through for material is set on shell side deflection plate steady rest 152.Along a plurality of outsides of annular current divider arranged outside projection 155, between the interval between the projection of outside and shell, form the gap that can pass through for material.
Referring to accompanying drawing 1 and 3.Shell side displaced spirals deflection plate assembly 16 comprises shell side displaced spirals deflection plate 161, central connecting rod 162, periphery connecting rod 163.Central authorities' connecting rod 162 is fixedly connected with shell side displaced spirals deflection plate 161 with periphery position in central authorities respectively with periphery connecting rod 163.Central authorities' connecting rod 162 upper ends are connected with perforation connecting rod 1801, connect connecting rod 1801 and are connected with the shell side deflection plate fluid pressure drive device outside shell through baffle plate mesotube 122.The shell side deflection plate steady rest 152 of central authorities connecting rod 162 lower ends and annular current divider 15 central authorities is slidably connected.Between shell side displaced spirals deflection plate 162 and heat exchanger tube 14 and shell 11, leave certain interval.The size in this gap to be to allow a small amount of material to pass through, and impacts, suppresses dirt cohesion, and the baffling effect that is unlikely to again to affect deflection plate is limited.
Referring to accompanying drawing 1,4 and 6.Tube side displaced spirals deflection plate assembly 17 comprises multi units tube journey displaced spirals deflection plate 171 and central bracing piece 172, terminal pad 173, connects connecting rod 1802.Tube side displaced spirals deflection plate 171 is fixedly connected with central bracing piece 172.All central bracing piece 172 upper ends are connected with terminal pad 173, and lower end is slidably connected with the tube side deflection plate steady rest 153 that is arranged on annular current divider 15 inner chambers.Terminal pad 173 connects connecting rod 1802 by two and is connected with the tube side deflection plate fluid pressure drive device outside shell by connecting rod perforating canal 134.
Referring to accompanying drawing 1,3,6 and 7.Hydraulic pressure dynamic sealing assembly 18 comprises sphere filter 181, sealing cap 183, hydraulic pump (not shown), sealing ring 185.
Hydraulic pump is airtight connection of sealed tube 1832 with sealing cap 183 by tube connector 1831.
Sealing cap arranges sealing ring annular groove 1832 at free-end, and content sealing ring 185 is set to closely cooperate with connecting connecting rod 1801 or 1802 at the link being connected with baffle plate mesotube 122 or connecting rod perforating canal 134, and in adapter, 1831 places arrange cannelure 1836.
The internal diameter of baffle plate mesotube 122 or connecting rod perforating canal 134 connects the slightly larger in diameter of connecting rod 1801,1802, as the transition gap band of movable sealing.
During work, shell side material enters in shell from shell side charging aperture, spirality channel along shell side deflection plate and shell formation arrives annular current divider place downwards, continue downwards in gap along the shell side deflection plate steady rest place of the gap forming between bulge clearance outside annular current divider and shell and annular current divider central authorities, from flowing out from shell side discharge gate, complete shell side process.
Tube side material enters along annular current divider from two tube side charging apertures of both sides, shell bottom, enter respectively heat exchanger tube, spirality channel along tube side deflection plate and heat exchanger tube formation is upward through baffle plate, through directed spout, enter the chamber of confluxing in end socket, then from tube side discharge gate, flow out, complete tube side process.
Above-mentionedly comprised that shell side moves heat exchanger that deflection plate and tube side move deflection plate and can adapt to the application flow that shell side and tube side material are all easy to fouling.This class application comprises the heat exchanging process between the coal before and after the HTHP catalytic pyrolysis in DCL/Direct coal liquefaction flow process, or the heat exchanging process between the water-coal-slurry in brown coal hydro-thermal dewatering process flow before and after HTHP dehydration, noble metal wet method HTHP leaches the heat exchanging process of material.
If shell side or tube side wherein one what pass through is less scaling material, can change the mobile deflection plate assembly of this side into fixedly deflection plate, as heated slurry material by pressure cooker vapours, slurry is walked tube side, steam is walked shell side, and shell side can change fixedly deflection plate into.If the heat exchanging process of this less scaling material occurs in phase transition temperature scope, this side shifting deflection plate assembly can omit, and as precedent heat medium changes saturated vapor or supercritical water into by superheated steam, shell-side can not arrange deflection plate.
Above accommodation is grasped by the those of ordinary skill in this field technically, without describing in detail separately.
embodiment 2
Sleeve type heat exchanger with the movable helical baffles of outer tube and inner tube activity helical baffles.
Referring to accompanying drawing 9.This installs each functional unit and comprises the chief components such as outer tube 21, inner tube 22, U-shaped ell 23, the movable spiral baffle groups of outer tube part, inner tube activity spiral baffle groups part, driven unit, hydraulic packing assembly.
Referring to accompanying drawing 10.In outer tube, be divided into 3 chambeies: drive cavity 211, heat exchange chamber 212 and counter balance pocket 213.Drive cavity is provided with modiolus through hole 2111 and hydraulic pressure input hole 2112.Counter balance pocket 213 is provided with hydraulic pressure input hole 2132.
Referring to accompanying drawing 10 and 11.Between drive cavity 211, heat exchange chamber 212 and counter balance pocket 213, by two groups of separators, 273 division boards 274, separated.
Referring to accompanying drawing 10.Inner tube runs through 3 chambeies of outer tube, and two ends are communicated with U-shaped ell is airtight, and inner tube deflection plate transmission through hole 231 is set near ell and inner tube junction.
Referring to accompanying drawing 11.The movable spiral baffle groups of outer tube part comprises 241,4 deflection plate connecting rods of the movable helical baffles of outer tube 242, two outer tube deflection plate connectors 243.
Referring to accompanying drawing 12.Inner tube activity spiral baffle groups part comprises draws together 251,1 deflection plate center rod 252 of inner tube activity helical baffles.
Referring to accompanying drawing 9,11 and 14.Driven unit comprises driving turbine 261, the driving worm screw 262 that is positioned at outer tube drive cavity and the balance joint 263 that is positioned at counter balance pocket, drive in turbine 261 and balance joint 263 and be provided with half thrust bearing 2611 and 2631 separately, the deflection plate center rod 252 that is positioned at inner tube runs through the transmission through hole 231 of the U-shaped ell of inner tube two ends connection.
Referring to accompanying drawing 9,10,13 and 14.Hydraulic packing assembly comprises hydraulic pump (not shown), is communicated with the communicating pipe (not shown) of hydraulic pump and each hydraulic seal cavity, fluid partitioning input port 2112, two groups of separators, 273 division boards 274 of isolation drive cavity 211 and heat exchange chamber 212 and heat exchange chamber 212 and counter balance pocket 213, between separator 273 and division board 274, be provided with sealing felt, separator 273 is fixedly connected with the transmission turbine in outer tube drive cavity 211, and separator 273 is connected with deflection plate connecting rod 242 by outer tube deflection plate connector 243.
Referring to accompanying drawing 11.It is external connection power that heat exchanger when work drives the transmittance process of the power of the movable spiral baffle groups of outer tube part motion---------separator 273---the movable helical baffles 241 of outer tube deflection plate connector 243---deflection plate connecting rod 242---outer tube that drives turbine 261 that drives worm screw 262.
Between the transmission through hole 231 of U-shaped ell and deflection plate center rod 252, hydraulic pressure movable sealing is set, its structure is similar to the mesotube of embodiment 1 and the hydraulic pressure movable sealing structure in sealing cap, difference is because its motion mode is for rotatablely moving, there is not the problem that can bring particle into seal clearance in 252 motions of deflection plate center rod, therefore without setting transition gap band.
In the annular seal space at the transmission through hole place of isolation drive cavity, counter balance pocket and U-shaped ell, by high-pressure pump, through fluid partitioning input port, pump into wherein isolating seal liquid, concrete liquid can be used the liquid identical with liquid component in slurry material, also can use other to there is lubrication, enter in material simultaneously and can not cause dysgenic liquid to material.
The opposite direction that inner sleeve and outer tube material pass through, making its heat exchange is countercurrent heat exchange.Meanwhile, the direction of rotation of the movable helical baffles of inner sleeve and outer tube is preferably set to promote the direction that material advances.Although the impetus to material during movable helical baffles low speed rotation is little, but still need to consider its potential impact.
Above-described is Yi Ge work unit with the sleeve type heat exchanger of the movable helical baffles of outer tube and inner tube activity helical baffles.Referring to accompanying drawing 15, the use that can be together in series of a plurality of work units, can increase heat exchange area and improve exchange capability of heat.
embodiment 3
Referring to accompanying drawing 16, with the fountain coil heat exchanger of helical baffles.
Comprise liquid spraying device 31, heat exchanger tube 32 and displaced spirals deflection plate assembly.
During work spray equipment 31 at heat exchanger to the straight tube position spraying cooling liquid of heat exchanger tube 32 or the liquid 311 of heating.The fluid foods being heated or cooled flows into from heat exchanger tube 32 end openings 321, and suitable for reading 322 flow out.Reciprocating under the driving that is connected to external reciprocating movement driving device of helical baffles 331 in displaced spirals deflection plate assembly via the central connecting rod 332 through heat exchanger tube tube wall.
Compare with common fountain coil heat exchanger, with the fountain coil heat exchanger of helical baffles, can prevent in heat exchange tube chamber fouling and improve heat exchange efficiency.
embodiment 4
Referring to accompanying drawing 17, with the immersion coil heat exchanger of helical baffles.
Comprise cooling liquid container 41, heat exchanger tube 42 and rotating screw deflection plate assembly.
During work, cooling fluid flows into from the feed tube 411 of liquid container 41 bottoms, from the discharging tube 412 on liquid container 41 tops, flows out.The fluid foods being cooled is from heat exchanger tube 42 inflow 421 suitable for reading, and end opening 422 flows out.Under the driving that is connected to external rotating driving device of helical baffles 431 in rotating screw deflection plate assembly via the central connecting rod 432 through heat exchanger tube tube wall, rotate.
If this heat exchanger is for heating the fluid foods in heat exchanger tube, the import and export position of liquid container and heat exchanger tube is exchanged separately.
Compare with common immersion coil heat exchanger, with the shower type heat exchanger of helical baffles, can prevent in heat exchange tube chamber fouling and improve heat exchange efficiency.In addition, rotating screw deflection plate also has the effect of additional promotion heat exchanger tube inner fluid Flow of Goods and Materials.
According to actual needs, the type of drive of embodiment 3 and embodiment 4 helical baffles used can be exchanged.
Claims (15)
1. a pipe heat exchanger, comprise shell-and-tube heat exchanger, double pipe heat exchanger, coil heat exchanger and shower type heat exchanger, it is characterized in that arranging the movable helical baffles that can move in the Flow of Goods and Materials passage in heat exchanger heat exchange region under deflection plate drive unit drives.
2. pipe heat exchanger as claimed in claim 1, is characterized in that the spiral of described spiral deflection plate is continuous helical.
3. pipe heat exchanger as claimed in claim 2, be specially shell-and-tube heat exchanger, described Flow of Goods and Materials passage comprises shell side and tube side, it is characterized in that, at shell side and tube side, movable deflection plate is all set, be referred to as the movable deflection plate of shell side and the movable deflection plate of tube side, the movable deflection plate of tube side has many groups, and the movable deflection plate of shell side and the movable deflection plate of tube side are strengthened by a central connecting rod.
4. pipe heat exchanger as claimed in claim 3, it is characterized in that the movable deflection plate of a plurality of tube sides is connected as one by a terminal pad by central connecting rod, the motion mode of the movable deflection plate of described shell side and the movable deflection plate of tube side is along spiral axis direction and moves back and forth.
5. pipe heat exchanger as claimed in claim 3, it is characterized in that the motion mode of the movable deflection plate of described shell side is for to move back and forth along spiral axis direction, the motion mode of the movable deflection plate of described tube side is around the rotation of spiral axis, by sun gear or chain gear transmission mode, drives the movable deflection plate synchronous rotary of a plurality of tube sides.
6. pipe heat exchanger as claimed in claim 4, it is characterized in that, described deflection plate drive unit is arranged on outside shell, and deflection plate drive unit is coupled together by the central connecting rod through the perforation connecting rod of shell and the movable deflection plate of shell side or the terminal pad that is connected the central connecting rod of the movable deflection plate of each tube side.
7. pipe heat exchanger as claimed in claim 6, is characterized in that, between perforation connecting rod and shell, hydraulic pressure movable sealing is set.
8. pipe heat exchanger as claimed in claim 7, is characterized in that, in movable sealing shell inner side, the airtight and watertight padding that stops solid particle is set.
9. pipe heat exchanger as claimed in claim 8, is characterized in that the shell inner side in movable sealing, the arranged outside transition gap band of airtight and watertight padding, and allow highly pressurised liquid in hydraulic pressure movable sealing controlledly to shell inner side leakage.
10. pipe heat exchanger as claimed in claim 1, is characterized in that leaving gap between deflection plate and the tube wall of heat exchanger tube.
11. pipe heat exchangers as claimed in claim 6, is characterized in that heat exchanger adopts upright mode, and drive unit is positioned at the upper end of heat exchanger.
12. pipe heat exchangers as claimed in claim 11, is characterized in that portable shell side deflection plate and tube side deflection plate are driven by hydraulic means.
13. pipe heat exchangers as claimed in claim 3, is characterized in that temperature compensation device adopts floating head type temperature compensation technical scheme, and tube side material is evenly shunted and adopted circle shaped tube type distributor to realize, and distributor input pipe enters ring pipe with tangential direction.
14. pipe heat exchangers as claimed in claim 3, it is characterized in that, at heat exchanger mid portion, one or several tube bank and shell side deflection plate bracing frames are set, shell side deflection plate is divided into discontinuous several sections by this bracing frame, between each section, by central connecting rod and auxiliary connecting rod, is connected.
15. pipe heat exchangers as claimed in claim 2, is characterized in that described pipe heat exchanger is specially double pipe heat exchanger, and the motion mode of described movable deflection plate is for to move back and forth or to rotate around spiral axis along spiral axis direction.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210251139.4A CN103575156A (en) | 2012-07-19 | 2012-07-19 | Heat exchanger |
| PCT/CN2013/079665 WO2014012514A1 (en) | 2012-07-19 | 2013-07-19 | Heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210251139.4A CN103575156A (en) | 2012-07-19 | 2012-07-19 | Heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103575156A true CN103575156A (en) | 2014-02-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210251139.4A Pending CN103575156A (en) | 2012-07-19 | 2012-07-19 | Heat exchanger |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN103575156A (en) |
| WO (1) | WO2014012514A1 (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107782177A (en) * | 2017-10-31 | 2018-03-09 | 天津科创复兴科技咨询有限公司 | One kind rotation tube-plate type heat-exchanger |
| CN107857416A (en) * | 2017-12-13 | 2018-03-30 | 北京能为科技股份有限公司 | On Line Foul Removing Technology handles the concentration systems and its technique of desulfurization wastewater |
| CN108634164A (en) * | 2018-05-16 | 2018-10-12 | 苏州尚梵斯科技有限公司 | A kind of paste food liquid heating homogenizer |
| CN108981428A (en) * | 2017-05-09 | 2018-12-11 | 山东大学 | A kind of method of the biphase gas and liquid flow heat exchanger of length planning and designing |
| CN110595235A (en) * | 2019-10-08 | 2019-12-20 | 雷迎谦 | Efficient heat exchanger device |
| CN110822469A (en) * | 2019-11-18 | 2020-02-21 | 山东禹王生态食业有限公司 | Method and device for preheating air entering furnace |
| CN113883929A (en) * | 2021-09-28 | 2022-01-04 | 浙江搏克换热科技有限公司 | Heat exchange equipment of intelligence temperature monitoring |
| CN117433337A (en) * | 2023-12-21 | 2024-01-23 | 江苏江杭石化工程有限公司 | Fixed bed hot high-pressure gas-separating water cooler |
| CN117469998A (en) * | 2023-12-01 | 2024-01-30 | 无锡泛德斯机械设备有限公司 | Tubular heat exchanger with uniform heat exchange and method |
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| BR112020004020A2 (en) | 2017-08-28 | 2020-09-08 | Watlow Electric Manufacturing Company | continuous helical deflector heat exchanger |
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| CN108981428A (en) * | 2017-05-09 | 2018-12-11 | 山东大学 | A kind of method of the biphase gas and liquid flow heat exchanger of length planning and designing |
| CN108981428B (en) * | 2017-05-09 | 2019-09-17 | 山东大学 | A kind of method of the biphase gas and liquid flow heat exchanger of length planning and designing |
| CN107782177A (en) * | 2017-10-31 | 2018-03-09 | 天津科创复兴科技咨询有限公司 | One kind rotation tube-plate type heat-exchanger |
| CN107857416A (en) * | 2017-12-13 | 2018-03-30 | 北京能为科技股份有限公司 | On Line Foul Removing Technology handles the concentration systems and its technique of desulfurization wastewater |
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| CN110595235A (en) * | 2019-10-08 | 2019-12-20 | 雷迎谦 | Efficient heat exchanger device |
| CN110822469A (en) * | 2019-11-18 | 2020-02-21 | 山东禹王生态食业有限公司 | Method and device for preheating air entering furnace |
| CN113883929A (en) * | 2021-09-28 | 2022-01-04 | 浙江搏克换热科技有限公司 | Heat exchange equipment of intelligence temperature monitoring |
| CN113883929B (en) * | 2021-09-28 | 2023-10-17 | 浙江搏克换热科技有限公司 | Heat exchange equipment of intelligent temperature monitoring |
| CN117469998A (en) * | 2023-12-01 | 2024-01-30 | 无锡泛德斯机械设备有限公司 | Tubular heat exchanger with uniform heat exchange and method |
| CN117433337A (en) * | 2023-12-21 | 2024-01-23 | 江苏江杭石化工程有限公司 | Fixed bed hot high-pressure gas-separating water cooler |
| CN117433337B (en) * | 2023-12-21 | 2024-02-13 | 江苏江杭石化工程有限公司 | Fixed bed hot high-pressure gas-separating water cooler |
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| Publication number | Publication date |
|---|---|
| WO2014012514A1 (en) | 2014-01-23 |
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