CN1585884A - A heat exchanger, combination with heat exchanger and method of manufacturing the heat exchanger - Google Patents
A heat exchanger, combination with heat exchanger and method of manufacturing the heat exchanger Download PDFInfo
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- CN1585884A CN1585884A CNA028222814A CN02822281A CN1585884A CN 1585884 A CN1585884 A CN 1585884A CN A028222814 A CNA028222814 A CN A028222814A CN 02822281 A CN02822281 A CN 02822281A CN 1585884 A CN1585884 A CN 1585884A
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- fluid
- heat exchanger
- inlet
- coil
- tubular space
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Classifications
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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
- F28D21/0001—Recuperative heat exchangers
- F28D21/0003—Recuperative heat exchangers the heat being recuperated from exhaust gases
- F28D21/0005—Recuperative heat exchangers the heat being recuperated from exhaust gases for domestic or space-heating systems
- F28D21/0007—Water heaters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D10/00—District heating systems
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D12/00—Other central heating systems
- F24D12/02—Other central heating systems having more than one heat source
-
- 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
- F28D7/02—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 helically coiled
- F28D7/024—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 helically coiled the conduits of only one medium being helically coiled tubes, the coils having a cylindrical configuration
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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
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/08—Tubular elements crimped or corrugated in longitudinal section
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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
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
- F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
- F28F1/34—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending obliquely
- F28F1/36—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending obliquely the means being helically wound fins or wire spirals
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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
- F28F27/00—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus
- F28F27/02—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus for controlling the distribution of heat-exchange media between different channels
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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
- F28F9/007—Auxiliary supports for elements
- F28F9/013—Auxiliary supports for elements for tubes or tube-assemblies
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D2200/00—Heat sources or energy sources
- F24D2200/16—Waste heat
- F24D2200/18—Flue gas recuperation
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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
- F28F2250/00—Arrangements for modifying the flow of the heat exchange media, e.g. flow guiding means; Particular flow patterns
- F28F2250/06—Derivation channels, e.g. bypass
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/17—District heating
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/14—Combined heat and power generation [CHP]
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Geometry (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
A heat exchanger for heat exchange between a first and a second fluid and comprising a cylindrical casing 2 , a cylindrical fluid conduit 5 arranged inside the casing such that an axially extending tubular space 8 is defined, at least one helical coil 9, 10 of a finned or corrugated tube being arranged inside the tubular space, and adjustable throttle means 17, 17 a , 18 adapted and arranged for adjustably throttling flow of the first fluid through the conduit 5 to adjust the flow of the first fluid through the conduit and the first tubular space for adjusting the heat exchange between the first fluid and the second fluid flowing through the helical coils 9, 10.
Description
Technical field
The present invention relates to a kind of heat exchanger that between the first fluid and second fluid, carries out heat exchange, comprise a columnar shell that is roughly that has first inlet and first outlet, so that first fluid roughly flows through described shell on axial direction and at least one is arranged on the spiral winding of described enclosure finned tube or wave duct.
Background technology
First fluid is compelled to outwards flow out or inwardly inflow from coil inside, and such heat exchanger is known.Be not well controlled from the heat transmission of first fluid in coil, so efficient is not the highest to second fluid.
Summary of the invention
The purpose of this invention is to provide a kind of like this heat exchanger, wherein first fluid flows, waste gas flowing for example from the turbine that acts as a fuel with natural gas, internal combustion engine, stove, burner, incinerator etc., around finned tube good and effective and efficient manner generation with a kind of control, reach from first fluid to second fluid, for example the high efficiency heat of water is transmitted.
This purpose of the present invention is to realize like this, promptly by provide one be arranged on described enclosure roughly coaxial with it be roughly columnar fluid conduit systems so that first tubular space that extends vertically is defined between described conduit and the described shell, described conduit has second inlet and second and exports so that described first fluid roughly flows through described conduit on axial direction, described first tubular space has the 3rd inlet and the 3rd and exports so that described first fluid roughly flows through described first tubular space on axial direction, at least one is arranged on the roughly coaxial with it finned tube in the described first tubular space inside or the spiral winding of wave duct, has the 4th inlet and the 4th outlet so that second fluid flows through described finned tube.
Thereby first fluid is compelled to twine mobile to carry out heat exchange around the finned tube coil in a kind of very effective mode.So also reduced the requirement of heat exchanger, promptly so-called " footprint " to the space.
Heat exchanger of the present invention further comprises the first adjustable device and/or the second adjustable device that flows successively of flowing successively, the first adjustable device that flows successively is used for the described first fluid of adjustable ground throttling by the flowing of described conduit, and second adjustablely flows the described first fluid of device adjustable ground throttling flowing by described tubular space successively.
Thereby, first fluid flow can bypass by the finned tube coil, the heat transmission that obtains second fluid can be reduced according to the demand to second fluid of heating.In addition, the pressure loss from the inlet of shell to its outlet can reduce by the finned tube coil by bypass, and this is desirable the start-up course of the turbine that the natural gas of the first fluid of the form that for example produces waste gas from gas combustion acts as a fuel.
Heat exchanger of the present invention one of preferred embodiment be at present, described first throttle device comprises first butterfly valve, preferably be provided with near described second inlet or described second outlet, and described second throttling arrangement comprises second butterfly valve, preferably close described the 3rd inlet or described the 3rd outlet setting.Thereby, the quite simple mechanism that is easy to regulate and adjust is provided.
In another embodiment, described first throttle device comprises first butterfly valve, preferably be provided with near described second inlet or described second outlet, and described second throttling arrangement comprises a ring, this ring has the planar dimension corresponding to the described first tubular space cross section, and is provided so that from described flow the basically uncrossed heating location of described first fluid by described tubular space and is displaced to the described bypass position that flows and be plugged basically.In the present embodiment, space requirement is lowered.
Another preferred embodiment is at present, above comprising, described first and second throttling arrangements are provided with the fixed head that fixedly installs of first and second through holes, its setting is that the described second and the 3rd inlet or outlet are blocked by described plate, so that first fluid is by mobile described first and second through holes that betide respectively on the described fixed head of described conduit and described first tubular space; And above be provided with one or two portable plate of third and fourth through hole, its setting is to make to be displaced to from the bypass position that is positioned at described fixed head top, preferably be displaced to rotationally, be positioned at the heating location on described fixed head top, coinciding at the described third through-hole of bypass position and described first through hole, second through hole coincides and described fourth hole is got along well, and coinciding at the described fourth hole of heating location and second through hole, first through hole coincides and described third through-hole is got along well.This embodiment of first and second throttling arrangements needs minimum space and is particularly suitable for accurately adjusting the bypass of passing through conduit of flowing with respect to the heat transmission of passing through tubular space to flow.
Preferred embodiment be at present, heat exchanger of the present invention further preferably comprises electric transmissio mechanism, be used to regulate the restriction effect of described first and second throttling arrangements, described throttling arrangement and described transmission device are cooperated, so that described first fluid is by mobile any flow velocity that can obtain basically between the minimum and maximum flow velocity of described second inlet and described the 3rd inlet.Described minimum flow velocity is substantially equal to zero.Thereby, can obtain any distribution that the fluid between bypass manifold and tubular space flows, this can be according to the simple and efficient adjusting that the demand of transmitting from the heat of first fluid is realized the output of heat exchanger.By realizing complete bypass basically, there is not heat to be passed to second fluid, this is good under the situation of the device externally that does not need to transfer heat to heat exchanger, so does not have the rising of temperature in the finned tube coil along with the formation of subsequently steam.
Two or more described spiral windings that preferred embodiment comprise at present of heat exchanger of the present invention are provided with one heart so that coil adjacent one another are is radially divided, thereby second tubular space that extends vertically is arranged between the coil adjacent one another are, the outer surface of described conduit is radially separated with the coil adjacent with described surface, thereby the 3rd tubular space that extends vertically is arranged between described surface and the described adjacent coil, the radial dimension of the described second and the 3rd tubular space is cooperated, so that for the given flow velocity acquisition certain pressure loss of described first fluid by described first tubular space.
Thereby, flow for the given of first fluid, can remain minimum and the efficient not reduction basically of heat exchanger from described first pressure loss that enters the mouth described first outlet.This turbine that acts as a fuel for natural gas is as the source particular importance of described first fluid, because the turbine that natural gas acts as a fuel is responsive especially for the back pressure of its waste gas outlet.
Preferably, each winding adjacent one another are of coil is separated each other vertically, thereby the spiral extension space is set between the described adjacent winding.With respect to coil, any differential thermal expansion of shell and/or conduit or contraction are absorbed by the space of spiral extension thereby in the axial direction.
Heat exchanger of the present invention comprise preferred embodiment that at present three or more described spiral winding is provided with one heart, the internal diameter of the finned tube of formation coil is preferably identical, the 3rd throttling arrangement is arranged on to constitute and is positioned at along the pipe of the radially inner coil of most external coil, be used to increase the pressure loss by the pipe of described Inside coil, so that compensation is with respect to the shorter length of the described pipe of the length of the pipe of most external coil, thereby the flow velocity of described second fluid by the pipe of all coils is identical for the given uniform pressure in described second fluid of described the 4th inlet basically.Thereby the heat transference efficiency of each coil is that diameter identical and that need not change the pipe of each coil obtains this effect basically.
Heat exchanger of the present invention at present preferred embodiment in, described the 3rd throttling arrangement is to constitute by the cross-sectional area that flows that the interior cross-sectional area with respect to described pipe reduces described second fluid, heat exchanger preferably further comprises inlet house steward (inlet header tube) and outlet header (outlet header tube), they export into fluid and are connected with described the 4th inlet and the 4th of all described pipes respectively by the respective through hole in described house steward, and the reduction of described flow cross section area is caused by the size decline of the described through hole in described enter the mouth house steward and/or described outlet header.This different length for the different coils of compensation is a kind of simple and cheap especially method.
Be used to produce under the situation of steam at heat exchanger of the present invention, preferably, each spiral winding comprises two or more finned tubes that twine twist, and they are with the extension adjacent one another are of identical pitch.Thereby the number of flow process increases, and this huge expansion for the volume of the water that is caused by generation steam in the coil pipe is favourable.
On the other hand, the present invention relates to heat exchanger of the present invention with as the combination that produces burner of waste gas such as the turbine that acts as a fuel with natural gas, the internal combustion engine that acts as a fuel with gasoline, diesel oil or natural gas, stove, burner, incinerator, this combination comprises and interconnects device, be used to make the waste gas outlet of burner and the described second and the 3rd inlet of heat exchanger to interconnect, thereby described waste gas constitute described first fluid.
Combination of the present invention preferred embodiment further comprise heat-exchange device at present, be used between around described second fluid and the 3rd fluid and/or the described heat-exchange device, carrying out heat exchange, described heat-exchange device and the described the 4th exports and is fluid and is connected; Measurement mechanism is used to measure the exchange rate of described heat-exchange device; Signal output apparatus is used to launch the result's of the measurement that expression undertaken by described measurement mechanism signal; And first control device, be used to control the adjusting of described first and second throttling arrangements and be suitable for receiving described signal.
Preferably, combination of the present invention further comprises second control device, is used to control the adjusting of described first throttle device, so as its restriction effect burner the startup stage be minimum.
Be on the other hand, the present invention relates to a kind of method of making heat exchanger of the present invention, comprise the steps: to provide the finned tube or the wave duct of first length; Main body with the periphery that is essentially circular is provided; Whirligig is provided, is used to cause the relative rotation on described pipe and described surface; The edge part (lead portion) that described pipe is set makes it described relatively surface and is close to; Cause the relative rotation of described surface and described edge part, make described first length of pipe on described surface, twine twist to form first spiral winding.Thereby, obtained a kind of simple especially, accurate and cheap method of making heat exchanger of the present invention.
About the heat exchanger with two or more ceoncentrically wound coils of the present invention, method of the present invention further comprises the steps: to provide escapement; Described escapement is connected to described first spiral winding; The finned tube or the wave duct of second length are provided; The edge part that described second length of finned tube is set makes it described relatively escapement and is close to; Cause the relative rotation of described first spiral winding and the described edge part of described second length of pipe, make described second length of pipe on described escapement, twine twist to form and separated diametrically second spiral winding of described first spiral winding.
For fear of inaccuracy and other shortcoming of coil diameter, method of the present invention preferably further comprises the steps: described spiral winding is fixed with respect to described main body; With make described main body and described coil stand the heat treatment of annealing; And/or described second spiral winding fixed with respect to described main body and/or described first spiral winding; With make described main body and described first and second coils stand the heat treatment of annealing.Thereby since the variation of the elasticity of the steel of coil pipe and the coil diameter that stress causes with a kind of simple and cheaply mode avoided.
Description of drawings
Below, will be described in more detail the present invention with reference to different embodiment of the present invention.This only is for example.In the accompanying drawing:
Fig. 1 is the front elevational schematic that the first present part preferred embodiment of heat exchanger of the present invention is cut open,
Fig. 2-the 3rd, the schematic plan view of the wing configuration of finned tube of the present invention,
Fig. 4 is the diagrammatic bottom view of the embodiment of Fig. 1,
Fig. 5 is the front elevational schematic that the second present part preferred embodiment of heat exchanger of the present invention is cut open,
Fig. 6 is inlet house steward's the schematic diagram of the embodiment of heat exchanger of the present invention, has four finned tube coils that are provided with one heart,
Fig. 7 is the front view of taking apart of the 3rd embodiment of heat exchanger of the present invention,
Fig. 8 is the signal enlarged drawing of a part of the embodiment of Fig. 1, shows the interval of the finned tube of coil,
Fig. 9 is the front view that the part of taking apart at top of the embodiment of Fig. 5 is analysed and observe, and shows first embodiment of throttling arrangement of the present invention,
Figure 10 is the front view that the part of taking apart at top of the 4th embodiment of heat exchanger of the present invention is analysed and observe, and shows second embodiment of throttling arrangement of the present invention,
Figure 11 is the diagrammatic top view of the embodiment of Figure 10,
Figure 12 is that front view is cut in a signal, shows the 3rd embodiment of throttling arrangement of the present invention,
Figure 13 is a diagrammatic top view, shows the 4th embodiment of throttling arrangement of the present invention,
Figure 14 is the perspective view of the part of the signal amplification of analysing and observe, and shows the top house steward of embodiment of Fig. 1 and the fastener of coil,
Figure 15 is a diagrammatic top view, show shop drawings 5 of the present invention embodiment method and
Figure 16 shows an embodiment who is used to regulate the control device of throttling arrangement of the present invention of the present invention.
The specific embodiment
At first referring to Fig. 1 and Fig. 4, heat exchanger 1 of the present invention comprises outer cylindrical shell 2, has flange inlet 3 and flange outlet 4.Have inlet 6 and outlet 7 inner cylindrical shell or claim conduit 5 and outer enclosure 2 coaxial settings, thereby qualification tubular space 8 is provided with two coils 9 and 10 of finned tube at this.Finned tube is made up of pipe 11, and pipe 11 has wing 12, and wing 12 is provided with the axle crosscut ground of managing 11 basically.
Finned tube coil 9 and 10 is provided with one heart each other and is coaxial with outside and inner shell 2 and 5.Flange outlet header 13 and flange inlet house steward 14 is connected by hole 15 and 16 with the inside of the pipe 11 of coil 9 and 10 respectively.
Butterfly valve 17 (by-passing valve) is arranged on by pivot on the axle 18 of outlet 7 of conduit 5, and in this position, valve 17 is in the centre of outlet 7 between cutting out fully and opening fully, shown in dotted line 17a. Semicircular rings 19 and 20 setting are to make butterfly valve 17 be close to the edge when the closed position, thereby guarantee that valve 17 has good closing function.
In the maximum output function of heat exchanger 1, butterfly by-passing valve 17 is in the closed position, shown in solid line among Fig. 1, thereby flows through tubular space 8 from all waste gases of natural gas turbine introducing inlet 3 by finned tube coil 9 and 10, shown in the solid line arrow.Heated water is introduced into coil 9 and 10 by inlet house steward 14, thus by from waste gas by wing 12 after the heat transmission heating of the water of pipe 11 to described pipe, from the hole 15 and 16 and outlet header 4 discharge.
Heated water is sent to external heat switch (not shown) and is delivered in certain other fluid or the environment with the part with the heat of water, is generally the radiator of building heating system or sub-district heating system.
Perhaps when the natural gas turbine starts (when the pressure loss by heat exchanger 1 should be in hour to make things convenient for turbine to start) or when the external heat switch does not need whole thermal capacity of heat exchanger 1, butterfly valve 17 is pivotally connected on the axle 18 so that make some or all waste gas from the natural gas turbine flow through inner conduit 5 so, shown in dotted arrow, thereby bypass is by tubular space 8 and coil 9 and 10.
Thereby, reduce by the pressure loss of heat exchanger 1, and the heat transmission in the water of managing in 9 and 10 reduces.Butterfly valve 7 also can be described to throttling arrangement and can be replaced by other throttling arrangement, as below with reference to the description of figure 9-13.
Referring now to Fig. 2 and 3,, the band 12a that carbon steel is made forms tongue 12b along transverse cuts, tongue 12b on the direction that replaces by transverse curvature to the plane of band, meet 12c to be soldered to weldering after the band 12a and manage 11 surface with helical structure.Thereby thereby the very effective heat that obtains from hot waste gas to tongue 12b to pipe 11 is transmitted.Also can use the configuration that has disc wing or ripple, and the wing that does not use the zigzag spiral shown in Fig. 2 and 3 to twine.
Referring now to Figure 14,, pipe 11 is soldered to house steward 14 around hole 15 and 16, is connected with house steward 14 inside thereby manage 11 inside. Coil 9 and 10 is attached to outer enclosure 2 and inner conduit 5 and gets off from this suspension by beam 22, and beam 22 is welded on shell and the conduit.Beam 22 is welded on two rings 23 and 24, and two rings 23 and 24 closely cooperate around the wing 12b of coil 9 and 10.Place the bottom of heat exchanger close inlet house steward 13 has similar configuration.
Referring now to Fig. 8,, shown coil 9 and 10 the relative position of each other, and they are with respect to the position of outer enclosure 2 and inner conduit 5, and the interval between the winding of each coil.
Inner most coil 10 and outermost coil 9 are that the tubular space of t1 separates by thickness or radial dimension, and the outer surface of inner most coil 10 and conduit 5 is that the tubular space of t3 separates by thickness or radial dimension.Outermost coil 9 does not separate mutually with the inner surface of outer enclosure 2, and promptly coil 9 is near shell 2.
The selection of t1 and t3 is to make the pressure loss by tubular space 8 remain on acceptable level to the optimum operation that waste gas is passed to the natural gas turbine (or other waste gas generation device) of heat exchanger 1 at interval.The heat exchanger effectiveness of heat exchanger 1 is not subjected to the influence of interval t1 and t3 basically.On the other hand, operational testing shows, exists if externally have at interval between shell 2 and the outermost coil 9, and the efficient of heat exchanger 1 can reduce greatly so.These two kinds of phenomenons be at least to a certain extent because, on the one hand, between the coil 9 and 10 and the turbulent flow between conduit 5 and the coil 10, on the other hand, the laminar flow in the tubular space between external coil 9 and the shell 2.
Have between the Several Parameters decision coil and interval t1 and t3 between penetralia coil and the conduit 5.Two most important considerations or parameter are:
Exhaust gas pressure descends
The geometry that exhaust gas pressure descends or loses the area of heating surface that depends on that very exhaust gas velocity and coil twine.Speed depends on free gas flow cross section area (gross area of the cross section of air-flow between pipe and the wing).
Δ p=ξ .1/2. ρ .w2, wherein
Δ p: exhaust gas pressure decline [Pa]
ξ: pressure decline coefficient, depend on geometry (shape of wing, pipe diameter, directly advance/the stagger arrangement configuration (inline/staggered configuration), twine number etc.)
ρ: at inlet 3 and the density [kg/m that exports between 4 at mean temperature gas
3]
W: exhaust gas velocity [m/s]
In most of the cases, natural gas turbine (and engine) afterwards heat exchanger and the exhaust gas pressure of the permission in the boiler to descend be very limited.For the natural gas turbine because energy production (thereby efficient of turbine) on turbine depends on back pressure very much, institute so that exhaust gas pressure descend and reach that to minimize be very important.For heat exchanger of the present invention, the exhaust gas pressure that allows descends to preferably being limited in and is lower than 500Pa (50cm water column), thereby obtain the big distance (the another kind of selection be, more coil makes device obtain bigger gas cross-sectional area and bigger diameter) between low-down exhaust gas velocity and the coil.
Heat transfer coefficient
In general, heat transfer coefficient should be high as much as possible so that heating surface area reaches minimizes.Heat transfer coefficient increases with higher exhaust gas velocity and bigger turbulent flow.For the selected area of heating surface (the zigzag spiral twines finned tube), what flow is disorderly very good, usually even for low-down exhaust gas velocity also can provide high heat transfer coefficient.
Design the heat exchanger with interval t1 and t3 of the present invention and consider it also is good from the angle of producing, because it allows coil individually to be inserted in the shell, on the contrary, be designed to abut one another or coil each other in nido in, must handle several coils and insert as a unit.
Still referring to Fig. 8, the space of shape extension is formed between the adjacent winding of each coil 9 and 10 in the shape of a spiral, and the thickness in described space or axial dimension are t2.The interval t2 that twines allows shell 2 and/or conduit 5 to carry out thermal expansion or contraction vertically with respect to coil 9 and 10, and do not cause unacceptable stress, because any difference of this expansion or contraction is all absorbed by the variation of the interval t2 between the winding of coil.
Embodiment
Hereinafter, the basic fundamental parameter of the combination of the present invention of the turbine that acts as a fuel of two heat exchangers of the present invention and natural gas is listed as non-limiting embodiment:
The size of heat exchanger
| Highly, do not comprise inlet | 1550mm |
| Diameter does not comprise insulation | 633mm |
| Insulation | 100mm wraps up with galvanized steel plain sheet |
| The waste gas outlet flange | DN450，DIN86044 |
| Water inlet/outlet connects | Carbon steel pipe, OD 60.5x3.6mm, 2 " RGW |
| Outer casing thickness (inner 5 and outside 2) | 5mm |
| Heat exchanger weight does not comprise water | 475kg |
| Heat exchanger weight comprises water | 500kg |
| Manage 11 external diameters | 38mm |
| Tube material thickness | 3.6mm |
| The wing type | The wing that the zigzag spiral twines |
| The wing height | 15mm |
| Wing density | 250pcs/m |
| Wing thickness | 1mm |
| Material, pipe and wing | Carbon steel |
| The pipe configuration | Directly advance (Inline) |
| The number of coaxial and ceoncentrically wound coil | ?2 |
| Twine number | ?10 |
| The pipe tooth pitch of gas direction | ?70mm |
| Free t2 at interval between the wing on the coil of gas direction twines | ?2mm |
| The diameter of bypass channel (inner shell 5) | ?323.9mm |
| The length of inner shell 5 comprises by-passing valve | ?860mm |
| The central diameter of interior loop 10 | ?401mm |
| The central diameter of exterior loop 9 | ?555mm |
| Free t3 at interval between inner shell on the interior loop 10 5 and wing | ?4.5mm |
| Free t1 at interval between the wing on two coils | ?9mm |
| Externally the freedom between the inside of wing on the coil and outer enclosure 2 at interval | ?0mm |
| Be used for coil and connect (two coils) size in house steward 13 hole 15,16 | ?30.8mm |
Process data
| Miniature natural gas turbine types | HONEYWELL?Parallon?75 |
| The maximum electric output power of natural gas turbine | 75kW(e) |
| Waste gas stream | 0.68kg/s |
| Exhaust gas entrance temperature to heat exchanger | 246℃ |
| Come the waste gas outlet temperature of automatic heat-exchanger | 90℃ |
| Pass the exhaust gas pressure loss of the area of heating surface | 300Pa |
| Heat exchanger add thermal capacity | 120kW |
| The water inlet temperature | 50℃ |
| Water outlet temperature | 70℃ |
| Current, approximately | 1.44kg/s |
| Pressure descends, the water side | 0.2 crust |
Referring now to Fig. 5,, the embodiment with heat exchanger of the present invention 31 of three ceoncentrically wound coil 32-34 use with Fig. 1 in the same reference numbers of similar components of element represent.Main difference between Fig. 1 and Fig. 5 except the number of coil, is that outlet header 38 ingate 35,36 is different with 37 sizes, so that the difference of the loop length between the bucking coil 32-34 is as follows.
The length of the pipe 11 of different coil 32-34 is different, and all coils interconnects outlet header 38 and inlet house steward 39, and flow distribution is set up in coil, provides the identical pressure loss by each coil.
Therefore, Inside coil 33 and 34 (at this second fluid (being generally water) than having shorter flow process at most external coil 32) can transmit more water than external coil 32.Water in the coil 33,34 and 35 can be heated to identical temperature then, and the recovery of the asymmetric and reduction of the heat that contains in first fluid (for example waste gas of the turbine that acts as a fuel from natural gas) that produces.
Therefore wishing that flow velocity by coil is adjusted makes all can obtain most possible good recuperation of heat and most possible good Temperature Distribution in water and waste gas.This can by in interior loop 33 and 34 with respect to exterior loop 35 with relative to each other produce the extra pressure loss.
This can reach in two ways:
The pipe that has the coil of different-diameter by use.Consider that from the viewpoint of practicality this is undesirable, unless under the situation of the ceoncentrically wound coil that uses big figure, the pipe diameter that wherein the 2-3 kind is different is an acceptable.
By in pipe or at its inlet or outlet, throttling arrangement being installed.As appreciable in Fig. 5 and Fig. 6, this can obtain by the hole 35-37 that has different-diameter respectively and the outlet header 38 of 40-43 are provided.The diameter in single hole decides according to the pipe diameter and the length of tube of the single coil of heat exchanger.Internal diameter for all four coil pipes is 56mm, and as shown in FIG. 6, as the example of the diameter in four holes, hole 40 is 56mm, and hole 41 is 13mm, and hole 42 is that 11mm and hole 43 are 9mm.Also can use other throttling arrangement of knowing in the art to the single coil pipe to obtain different pressure drop coefficients.
Referring now to Fig. 7,, the Inside coil of close inner conduit 5 comprises the finned tube 50 and 51 of two wound in parallel, second fluid (being generally water) is formed two parallel flow processs, shown in arrow R1 and R2.
This embodiment is in order to be used to produce steam, the large volume expansion (changing steam at liquid, when water changes steam into) of material in wherein must considering to manage, and the pressure loss on the inner surface of the increase of flow that is accompanied by and flow velocity and pipe.For enough interior flow cross section areas are provided, therefore often must use bigger pipe diameter, more the coil of big figure or the more flow process of big figure otherwise is provided in pipe.
Except many coils are provided, can twine and obtain more multipaths by in same coil, having several parallel extensions, as shown in Figure 7, promptly several coils with same line loop diameter and big tooth pitch are " precession " each other.Thereby obtained more imperial palace cross-sectional area, and do not had the coil of the big figure that has large diameter most external coil and outer enclosure 2 (big footprint).The littler footprint of this heat exchanger or outer dia all have significant advantage to the user with when making, installing and transporting.For given output, the axial length of heat exchanger or highly certainly can be bigger, but this does not generally produce big problem during fabrication and for the user.
Referring now to Fig. 9-13,, the various embodiments that are used for by the throttling arrangement that flows of conduit 5 and tubular space 8 throttling first fluids (being generally waste gas) have been shown respectively.
In the embodiment of Fig. 9, butterfly valve 17 and ring 52 cooperate, and ring 52 is suspended in three and is connected along on the steel wire 53 at ring 52 same distance point place.Line 53 extends to axle 18 by pulley 54.
In the situation shown in the solid line, butterfly valve 17 cuts out, and does not allow any waste gas to flow through conduit 5, is in its extreme higher position and encircle 52, this its not throttling waste gas flowing by tubular space 8.
In the situation shown in the dotted line, butterfly valve 17a plays by-passing valve, allow not throttling of waste gas by conduit 5, and ring 52a is in the complete throttle position that is supported on the retaining ring 55, thereby has avoided waste gas flowing by tubular space 8.
When the external heat consumer that is connected to heat exchanger 31 does not need when hot, butterfly valve 17 is in the position (17a) of opening fully so, and ring 52 is in the minimum position of closing fully (52a), and all as a result exhaust gas bypass are by conduit 5.Thereby the water in the finned tube coil is not heated, for the superheated external refrigeration device of avoiding water is unnecessary.
Thereby provide a kind of very simply device that is used to regulate the thermal output of heat exchanger 31.Temperature sensor and transmitter (not providing among the figure) can be arranged on and be used to axle 18 to transmit signals to the driving machine (motor) that does not provide among the figure in the outlet header 38, if the result is inconsistent with the temperature that needs in the temperature that the outlet header measures, axle will rotate corresponding to the direction of opening or closing by-passing valve 17 so.Rely on user's requirement and be connected to the configuration of the external heat consumer of heat exchanger 31, can expect many different regulating circuits.
Referring now to Figure 10 and 11,, provided the front view and the vertical view of second embodiment that waste gas flows through first and second throttling arrangements of inner conduit and tubular space respectively among the figure respectively, inner conduit 5 is connected to another conduit 56 with outlet 57, and butterfly valve 58 is rotatably installed on the axle 59.Outlet 57 is connected with the outlet 4 of shell 5.Butterfly valve 58 can from shown in the closed position rotate to open position with axle 59, shown in closed position outlet 57 blocked fully, at open position waste gas by exporting 57 flow and hindered.
Referring now to Figure 12,, the butterfly valve 58 and 63 of Figure 10 and 11 embodiment is replaced by butterfly valve 65 and two butterfly valves 66 respectively in the present embodiment, valve 65 with 66 and the operation of axle 59 be identical about the embodiment of Figure 10 and 11.
Referring now to Figure 13,, fixed disc 70 is horizontally disposed in the embodiment of heat exchanger, is similar to (not the having butterfly valve 17) shown in Fig. 1 or Fig. 4, is positioned on the ring exit of the outlet of conduit 5 and tubular space 8.Dish 70 is provided with hole 71 that is connected with conduit 5 inside and the hole 72 that is connected with tubular space 8.
Rotatably the disk 73 of She Zhiing is arranged on the top that is positioned at dish 70 on the pivot 74.Dish 73 the is provided with shape hole 76 identical with the distribute hole 75 identical and the hole in shape and distribution and the dish 70 71 with coiling hole 72 in 70.The setting of motor 77 is for all rotatable dish 73 on both direction.
Position at the rotatable dish shown in Figure 13, hole 71 and 76 coincides each other, a top that is positioned at another, thereby waste gas can almost flow through the conduit 5 that is positioned under these holes that coincide in the clear, and be plugged by the mobile of tubular space 8, because hole 72 and 75 is not connected fully.By with motor 77 rotating discs 73, its position can arrive the relatively uncrossed position of flowing by tubular space, because hole 72 and 75 coincides and the position of flowing and being blocked fully by conduit 5, because hole 71 and 76 is not connected fully.
Lower wall 70 is rotatable on the contrary, thereby the pressure of waste gas can be towards fixed disk 73 extruding disks 70, strengthened coil 70 and 73 toward each other near sealing effectiveness.The sealing of dish also can realize with many alternate manners known in the art.
Referring now to Figure 15,, shown the method for the present invention of making heat exchanger of the present invention (embodiment of Fig. 5).
Four cylinder plates 84 have the thickness of quadrant cross section and the radial dimension t1 (see figure 8) that need to equal, and four cylinder plates 84 are arranged on the outer surface of coil 33, and bar 85 is arranged between the edge adjacent one another are that extends vertically of plate 84.Clamping band that circumferentially extends that plate 84 and bar 85 are not provided among the figure or silk are clamped.The cross section of bar 85 is oval and is placed between the plate 84, makes that the circumference of oval major cross-sectional dimension and plate 84 is tangent.
The unit that comprises main body 80, coil 32-34 and plate 84 and bar 85 is subjected to the heat treatment of annealing afterwards, avoids the elasticity diameter expansion of coil and removes the stress with potential hazard.
After the annealing, remove the clamping of clip 83, swingle 85 make the major dimension of non-circular cross-section be radial oriented, thereby coil 32-34 is compelled to slight expansion, to remove cylinder plate 84.Remove bar 82 at last, make and remove main body 80.Coil 32-34 has been ready to be inserted in the shell 2 now and conduit 5 is placed on interior loop 34 inside.
In the combination or system of the turbine (internal combustion engine that perhaps uses natural gas to act as a fuel) that heat exchanger of the present invention is specially adapted to comprise that natural gas acts as a fuel.Such system further is specially adapted in the system of (but being not to be limited to) small-scale Joint Production electricity and heat, for example edifice, hospital, sub-district heating system etc.
Referring now to Figure 16,, comprise that the turbine that heat exchanger of the present invention, natural gas act as a fuel and the system of the present invention or the combination of external heat consumer have following feature:
| Project | Parts | Describe |
| 101 | Heat exchanger of the | |
| 102 | Exhaust gas by-pass valve (for example butterfly valve) | Can manual adjustments or regulate by driver (motor) as shown here, |
| 103 | The | |
| 104 | The turbine that natural gas acts as a fuel | Can be the another kind of parts that produce |
| 105 | Circulating pump | The forced circulation system, the water/fluid that requires with circulation flows.When the head of water circulating pump, consider that the pressure on the water side of heat exchanger, valve and pipe-line system descends |
| 106 | Expansion slot | When variations in temperature, accept the expansion of the fluid in the |
| 107 | The external user heat exchanger | Perhaps other heat loss device.It can be the heating that is used for building, greenhouse, sub-district heating system etc. |
| 108 | Safety valve | If the pressure in the system becomes too high then opens. |
| 109 | Stop valve | Open generally speaking.May close during maintenance. |
| 110 | | |
| 111 | Motor | Motor is controlled automatically from the signal of temperature transmitter 113.If it is too high that water temperature becomes, open by-passing valve 102 a little, too low if water temperature becomes, close by-passing valve 102 a little.Be arranged on level by user's decision. |
| 112 | Dump valve | Discharge water/fluid from system. |
| 113 | The temperature transmitter | If the temperature of measuring is too high or too low, signal is sent to motor. |
System can comprise other waste gas generation device, according to the configuration of user's heat loss device, the adjusting of heat exchanger bypass valve (and the choke valve that is used for the heat exchanger that flows by the tubular space throttling fluid that contains the finned tube coil) can have many different modes.
Claims (43)
1, a kind of heat exchanger that carries out heat exchange between the first fluid and second fluid comprises:
The columnar shell that is roughly that has first inlet and first outlet is so that described first fluid roughly flows through described shell on axial direction;
One be arranged on described enclosure roughly coaxial with it be roughly columnar fluid conduit systems so that first tubular space that extends vertically is defined between described conduit and the described shell, described conduit has second inlet and second and exports so that described first fluid roughly flows through described conduit on axial direction, and described first tubular space has the 3rd inlet and the 3rd and exports so that described first fluid roughly flows through described tubular space on axial direction;
At least one is arranged on the roughly coaxial with it finned tube in the described first tubular space inside or the spiral winding of wave duct, has the 4th inlet and the 4th outlet so that described second fluid flows through described finned tube.
2, heat exchanger as claimed in claim 1, further comprise the first adjustable device and/or the second adjustable device that flows successively of flowing successively, the first adjustable device that flows successively is used for the described first fluid of adjustable ground throttling and flows by the described of described conduit, and the second adjustable device that flows successively is used for the described first fluid of adjustable ground throttling and flows by the described of described tubular space.
3, heat exchanger as claimed in claim 2, wherein said first throttle device comprises first butterfly valve, preferably be provided with near described second inlet or described second outlet, and described second throttling arrangement comprises second butterfly valve, preferably is provided with near described the 3rd inlet or described the 3rd outlet.
4, heat exchanger as claimed in claim 2, wherein said first throttle device comprises first butterfly valve, preferably be provided with near described second inlet or described second outlet, and described second throttling arrangement comprises a ring, this ring has the planar dimension corresponding to the described first tubular space cross section, and is provided so that from described flow the basically uncrossed heating location of described first fluid by described tubular space and is displaced to the described bypass position that flows and be plugged basically.
5, heat exchanger as claimed in claim 2, wherein said first and second throttling arrangements comprise:
Be provided with the fixed head that fixedly installs of first and second through holes above, its setting is that the described second and the 3rd inlet or outlet are blocked by described plate, so that first fluid is by mobile described first and second through holes that betide respectively on the described fixed head of described conduit and described first tubular space; And
Be provided with one or two portable plate of third and fourth through hole above, its setting is to make to be displaced to from the bypass position that is positioned at described fixed head top, preferably be displaced to rotationally, be positioned at the heating location on described fixed head top, coinciding at the described third through-hole of bypass position and described first through hole, second through hole coincides and described fourth hole is got along well, and coinciding at the described fourth hole of heating location and second through hole, first through hole coincides and described third through-hole is got along well.
6, as each described heat exchanger of claim 2-5, further preferably comprise electric transmissio mechanism, be used to regulate the restriction effect of described first and second throttling arrangements.
7, as each described heat exchanger of claim 2-6, described throttling arrangement and described transmission device are cooperated, so that described first fluid is by mobile any flow velocity that can obtain basically between the minimum and maximum flow velocity of described second inlet and described the 3rd inlet.
8, heat exchanger as claimed in claim 7, described minimum flow velocity are substantially equal to zero.
9, aforesaid right requires each described heat exchanger, comprises the described spiral winding of two or more concentric settings, so that coil adjacent one another are is radially divided, thereby second tubular space that extends vertically is arranged between the coil adjacent one another are.
10, aforesaid right requires each described heat exchanger, and the outer surface of wherein said conduit is radially separated with the coil adjacent with described surface, thereby the 3rd tubular space that extends vertically is arranged between described surface and the described adjacent coil.
11,, the radial dimension of the described second and the 3rd tubular space is cooperated, so that for the certain pressure loss of given flow velocity acquisition of described first fluid by described first tubular space as claim 9 or 10 described heat exchangers.
12, aforesaid right requires each described heat exchanger, and wherein each winding adjacent one another are of coil is separated each other vertically, thereby the spiral extension space is set between the described adjacent winding.
13, aforesaid right requires each described heat exchanger, comprise the described spiral winding that three or more is provided with one heart, the internal diameter of the finned tube of formation coil is preferably identical, wherein the 3rd throttling arrangement is arranged on to constitute and is positioned at along the pipe of the radially inner coil of most external coil, be used to increase the pressure loss by the pipe of described interior loop, so that compensation is with respect to the shorter length of the described pipe of the length of the pipe of most external coil, thereby the flow velocity of described second fluid by the pipe of all coils is identical for the given uniform pressure in described second fluid of described the 4th inlet basically.
14, heat exchanger as claimed in claim 13, wherein said the 3rd throttling arrangement are to constitute by the cross-sectional area that flows that the interior cross-sectional area with respect to described pipe reduces described second fluid.
15, heat exchanger as claimed in claim 14, further comprise inlet house steward and outlet header, they export into fluid and are connected with described the 4th inlet and the 4th of all described pipes respectively by the respective through hole in described house steward, and the reduction of described flow cross section area is caused by the size decline of the described through hole in described enter the mouth house steward and/or described outlet header.
16, aforesaid right requires each described heat exchanger, and wherein spiral winding comprises two or more finned tubes that twine twist, and they are with the extension adjacent one another are of identical pitch.
17, as the described heat exchanger of claim 1-16 with as the combination that produces burner of waste gas such as the turbine that acts as a fuel with natural gas, the internal combustion engine that acts as a fuel with gasoline, diesel oil or natural gas, stove, burner, incinerator, this combination comprises and interconnects device, be used to make the waste gas outlet of burner and the described second and the 3rd inlet of heat exchanger to interconnect, thereby described waste gas constitute described first fluid.
18, combination as claimed in claim 17 further comprises:
Heat-exchange device is used for carrying out heat exchange between around described second fluid and the 3rd fluid and/or the described heat-exchange device, and described heat-exchange device is fluid with described the 4th outlet and is connected;
Measurement mechanism is used to measure the exchange rate of described heat-exchange device;
Signal output apparatus is used to launch the result's of the measurement that expression undertaken by described measurement mechanism signal; With
First control device is used to control the adjusting of described first and second throttling arrangements and is suitable for receiving described signal.
19, as claim 17 or 18 described combinations, further comprise second control device, be used to control the adjusting of described first throttle device, so as its restriction effect burner the startup stage be minimum.
20, a kind of combination of between the first fluid and second fluid, carrying out the heat exchanger and the waste gas generation burner of heat exchange,
Heat exchanger comprises:
The columnar shell that is roughly that has first inlet and first outlet is so that first fluid roughly flows through described shell on axial direction;
One be arranged on described enclosure roughly coaxial with it be roughly columnar fluid conduit systems so that first tubular space that extends vertically is defined between described conduit and the described shell, described conduit has second inlet and second and exports so that described first fluid roughly flows through described conduit on axial direction, and described first tubular space has the 3rd inlet and the 3rd and exports so that described first fluid roughly flows through described tubular space on axial direction; With
At least one is arranged on the roughly coaxial with it finned tube in the described first tubular space inside or the spiral winding of wave duct, has the 4th inlet and the 4th outlet so that second fluid flows through described finned tube;
This combination comprises and interconnects device, be used to make the waste gas outlet of burner and the described second and the 3rd inlet of heat exchanger to interconnect, thereby described waste gas constitutes described first fluid.
21, combination as claimed in claim 20, further comprise the first adjustable device and/or the second adjustable device that flows successively of flowing successively, the first adjustable device that flows successively is used for the described first fluid of adjustable ground throttling by the flowing of described conduit, and second adjustablely flows the described first fluid of device adjustable ground throttling flowing by described tubular space successively.
22, combination as claimed in claim 21, wherein said first throttle device comprises first butterfly valve, preferably be provided with near described second inlet or described second outlet, and described second throttling arrangement comprises second butterfly valve, preferably close described the 3rd inlet or described the 3rd outlet setting.
23, combination as claimed in claim 21, wherein said first throttle device comprises first butterfly valve, preferably be provided with near described second inlet or described second outlet, and described second throttling arrangement comprises a ring, and this ring has corresponding to the planar dimension of the described first tubular space cross section and is provided so that from described flow the basically uncrossed heating location of described first fluid by described tubular space and is displaced to the described bypass position that flows and be plugged basically.
24, combination as claimed in claim 21, wherein said first and second throttling arrangements comprise:
Be provided with the fixed head that fixedly installs of first and second through holes above, its setting is that the described second and the 3rd inlet or outlet are blocked by described plate, so that first fluid is by mobile described first and second through holes that betide respectively on the described fixed head of described conduit and described first tubular space; And
Be provided with one or two portable plate of third and fourth through hole above, its setting is to make to be displaced to from the bypass position that is positioned at described fixed head top, preferably be displaced to rotationally, be positioned at the heating location on described fixed head top, coinciding at the described third through-hole of bypass position and described first through hole, second through hole coincides and described fourth hole is got along well, and coinciding at the described fourth hole of heating location and second through hole, first through hole coincides and described third through-hole is got along well.
25, combination as claimed in claim 21 further preferably comprises electric transmissio mechanism, is used to regulate the restriction effect of described first and second throttling arrangements.
26, combination as claimed in claim 21 cooperates described throttling arrangement and described transmission device, so that described first fluid is by mobile any flow velocity that can obtain basically between the minimum and maximum flow velocity of described second inlet and described the 3rd inlet.
27, combination as claimed in claim 26, described minimum flow velocity are substantially equal to zero.
28, combination as claimed in claim 21 comprises the described spiral winding of two or more concentric settings, so that coil adjacent one another are is radially divided, thereby second tubular space that extends vertically is arranged between the coil adjacent one another are.
29, combination as claimed in claim 21, the outer surface of wherein said conduit is radially separated with the coil adjacent with described surface, thereby the 3rd tubular space that extends vertically is arranged between described surface and the described adjacent coil.
30, combination as claimed in claim 28 wherein makes the radial dimension of described second tubular space cooperate, so that for the given flow velocity acquisition certain pressure loss of described first fluid by described first tubular space.
31, combination as claimed in claim 29 wherein makes the radial dimension of described the 3rd tubular space cooperate, so that for the given flow velocity acquisition certain pressure loss of described first fluid by described first tubular space.
32, combination as claimed in claim 21, wherein each winding adjacent one another are of coil is separated each other vertically, thus the spiral extension space is set between the described adjacent winding.
33, combination as claimed in claim 21, comprise the described spiral winding that three or more is provided with one heart, the internal diameter of the finned tube of formation coil is preferably identical, wherein the 3rd throttling arrangement is arranged on to constitute and is positioned at along the pipe of the radially inner coil of most external coil, be used to increase the pressure loss by the pipe of described interior loop, so that compensation is with respect to the shorter length of the described pipe of the length of the pipe of most external coil, thereby the flow velocity of described second fluid by the pipe of all coils is identical for the given uniform pressure in described second fluid of described the 4th inlet basically.
34, combination as claimed in claim 33, wherein said the 3rd throttling arrangement are to constitute by the cross-sectional area that flows that the interior cross-sectional area with respect to described pipe reduces described second fluid.
35, combination as claimed in claim 34, further comprise inlet house steward and outlet header, their described the 4th inlets and the 4th by the respective through hole in described house steward and all described pipes export into fluid and are connected, and the reduction of described flow cross section area is caused by the size decline of the described through hole in described enter the mouth house steward and/or described outlet header.
36, combination as claimed in claim 21, wherein spiral winding comprises two or more finned tubes that twine twist, they are with the extension adjacent one another are of identical pitch.
37, combination as claimed in claim 21 further comprises
Heat-exchange device is used for carrying out heat exchange between around described second fluid and the 3rd fluid and/or the described heat-exchange device, and described heat-exchange device is fluid with described the 4th outlet and is connected;
Measurement mechanism is used to measure the exchange rate of described heat-exchange device;
Signal output apparatus is used to launch the result's of the measurement that expression undertaken by described measurement mechanism signal; With
First control device is used to control the adjusting of described first and second throttling arrangements and is suitable for receiving described signal.
38, combination as claimed in claim 21 further comprises second control device, is used to control the adjusting of described first throttle device, so as its restriction effect burner the startup stage be minimum.
39, combination as claimed in claim 20, wherein waste gas produces burner and is selected from the group that the internal combustion engine, stove, burner, the incinerator that comprise the turbine that acts as a fuel with natural gas, act as a fuel with gasoline, diesel oil or natural gas are formed.
40, a kind of method of making as each described heat exchanger of claim 1-16 comprises the steps:
The finned tube or the wave duct of first length are provided;
Main body with the periphery that is essentially circular is provided;
Whirligig is provided, is used to cause the relative rotation on described pipe and described surface;
The edge part (lead portion) that described pipe is set makes it described relatively surface and is close to;
Cause the relative rotation of described surface and described edge part, make described first length of pipe on described surface, twine twist to form first spiral winding.
41, method as claimed in claim 40 further comprises the steps:
Escapement is provided;
Described escapement is connected to described first spiral winding;
The finned tube or the wave duct of second length are provided;
The edge part that described second length of finned tube is set makes it described relatively escapement and is close to;
Cause the relative rotation of described first spiral winding and the described edge part of described second length of pipe, make described second length of pipe on described escapement, twine twist to form and separated diametrically second spiral winding of described first spiral winding.
42, method as claimed in claim 40 further comprises the steps:
Described spiral winding is fixed with respect to described main body; With
Make described main body and described coil stand the heat treatment of annealing.
43, method as claimed in claim 41 further comprises the steps:
Described second spiral winding is fixed with respect to described main body and/or described first spiral winding; With
Make described main body and described first and second coils stand the heat treatment of annealing.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DKPA200101661 | 2001-11-09 | ||
| DKPA200101661 | 2001-11-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1585884A true CN1585884A (en) | 2005-02-23 |
Family
ID=8160821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA028222814A Pending CN1585884A (en) | 2001-11-09 | 2002-11-07 | A heat exchanger, combination with heat exchanger and method of manufacturing the heat exchanger |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP1454107A1 (en) |
| JP (1) | JP2005509125A (en) |
| CN (1) | CN1585884A (en) |
| BR (1) | BR0213998A (en) |
| CA (1) | CA2466564A1 (en) |
| WO (1) | WO2003040641A1 (en) |
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- 2002-11-07 CN CNA028222814A patent/CN1585884A/en active Pending
- 2002-11-07 JP JP2003542853A patent/JP2005509125A/en active Pending
- 2002-11-07 WO PCT/DK2002/000748 patent/WO2003040641A1/en not_active Application Discontinuation
- 2002-11-07 CA CA002466564A patent/CA2466564A1/en not_active Abandoned
- 2002-11-07 EP EP02787427A patent/EP1454107A1/en not_active Withdrawn
- 2002-11-07 BR BR0213998-7A patent/BR0213998A/en not_active Application Discontinuation
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Also Published As
| Publication number | Publication date |
|---|---|
| EP1454107A1 (en) | 2004-09-08 |
| BR0213998A (en) | 2004-09-08 |
| CA2466564A1 (en) | 2003-05-15 |
| JP2005509125A (en) | 2005-04-07 |
| WO2003040641A1 (en) | 2003-05-15 |
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