EP3101339A1 - A header device for a heat exchanger system, a heat exchanger system, and a method of heating a fluid - Google Patents
A header device for a heat exchanger system, a heat exchanger system, and a method of heating a fluid Download PDFInfo
- Publication number
- EP3101339A1 EP3101339A1 EP15170495.4A EP15170495A EP3101339A1 EP 3101339 A1 EP3101339 A1 EP 3101339A1 EP 15170495 A EP15170495 A EP 15170495A EP 3101339 A1 EP3101339 A1 EP 3101339A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- header
- fluid
- outlet
- tube arrangement
- steam
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000012530 fluid Substances 0.000 title claims abstract description 120
- 238000000034 method Methods 0.000 title claims abstract description 10
- 238000010438 heat treatment Methods 0.000 title claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 41
- 239000003546 flue gas Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B21/00—Water-tube boilers of vertical or steeply-inclined type, i.e. the water-tube sets being arranged vertically or substantially vertically
- F22B21/22—Water-tube boilers of vertical or steeply-inclined type, i.e. the water-tube sets being arranged vertically or substantially vertically built-up from water tubes of form other than straight or substantially straight
- F22B21/26—Water-tube boilers of vertical or steeply-inclined type, i.e. the water-tube sets being arranged vertically or substantially vertically built-up from water tubes of form other than straight or substantially straight bent helically, i.e. coiled
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B37/00—Component parts or details of steam boilers
- F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
- F22B37/22—Drums; Headers; Accessories therefor
- F22B37/227—Drums and collectors for mixing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B37/00—Component parts or details of steam boilers
- F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
- F22B37/22—Drums; Headers; Accessories therefor
- F22B37/228—Headers for distributing feedwater into steam generator vessels; Accessories therefor
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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
- F28D7/02—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
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/02—Header boxes; End plates
- F28F9/026—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits
- F28F9/027—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits in the form of distribution pipes
- F28F9/0273—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits in the form of distribution pipes with multiple holes
Definitions
- the present invention refers to a header device for a heat exchanger system, for instance for a so called boiler for heating of water to be evaporated. More specifically, the present invention refers to a header device for a heat exchanger system comprising a tube arrangement configured to convey a fluid to be heated, the header device comprising a header comprising an inlet portion and an outlet portion communicating with each other, wherein the inlet portion comprises a header inlet for a first fluid, wherein the outlet portion comprises a wall surrounding an inner space, wherein the outlet portion comprises a header outlet, which extends through the wall and is configured to be connected to the tube arrangement, wherein the header is configured to permit the first fluid to enter the inner space via the header inlet, and to flow from the inner space to the tube arrangement via the header outlet.
- the present invention also refers to a heat exchanger system comprising a header device.
- the present invention refers to a method of heating a fluid in a heat exchanger system comprising a channel, a tube arrangement arranged inside the channel and a header having a header inlet and a header outlet connected to the tube arrangement, the method comprising conveying a high temperature fluid through the channel, and supplying a first fluid to the header via the header inlet.
- US-4,351,277 discloses an economizer of the type having a vertically extending cylindrical casing in which is mounted a plurality of spiral coils arranged in parallel to each other in concentric relation with respect to the central vertical axis of the cylindrical casing.
- the spiral coils are in the form of finned tubes.
- a heat exchange fluid is conducted through the spiral coils whereby the coils can extract heat from exhaust gases passing upwardly through the economizer from a boiler.
- the economizer comprises an inlet header comprising a pipe which receives the fluid to be heated.
- the pipe has an outer wall and encloses an inner space. Seven outlet openings extend through the wall and are connected to a respective one of the spiral coils.
- Steam systems with forced circulation may comprise a heat exchanger, for instance a boiler, for heating and evaporating water by means of a heat source, such as flue gases, solar energy, etc.
- the heated and evaporated water may be conveyed from the heat exchanger to a so called steam drum, in which water is separated from the steam and collected in a lower part of the steam drum.
- the steam may then be conveyed from the steam drum to a steam consumer, for instance a heat exchanger or steam turbine.
- heat is recovered from the steam and condensed water may be collected in a so called hot well.
- a feed water pump the water from the hot well may be conveyed back to the steam drum.
- the water collected in the steam drum may be conveyed to a water inlet of the heat exchanger via an inlet conduit by means of a circulation pump.
- the circulation pump may raise the pressure of the water by for instance about 1 bar, thereby forcing the water into the heat exchanger, where the water is again evaporated.
- Steam systems with natural circulation may differ from the steam systems with forced circulation in that the circulation pump is replaced by a long vertical inlet conduit, a so called down comer.
- the steam drum should then be arranged at a level well above the water inlet of the heat exchanger. For instance a height of the down comer of approximately 10 m may create a pressure increase of about 1 bar, which may be sufficient to force the water into the heat exchanger and maintain the circulation in the steam system.
- the object of the present invention is to provide an alternative solution to the down comer and the circulation pump. Especially, it is aimed at an alternative solution, which maintain an efficient circulation without the need for a circulation pump and/or a down comer.
- header device initially defined which is characterized in that the header device comprises an injector pipe connected to the header and arranged to inject a second fluid into the header to force the first fluid through the header outlet and into the tube arrangement together with the second fluid, the fluid to be heated comprising the first and second fluids.
- the second fluid will operate to force the first fluid into the tube arrangement by means of an ejector action. Consequently, it may be dispensed with a circulation pump for the first fluid. Furthermore, there is no need for a long down comer, which means that the steam drum may be positioned relatively closely to the tube arrangement.
- the tube arrangement comprises a number of tubes for the fluid to be heated, wherein the header outlet comprises a number of openings through the wall of the outlet portion, and wherein each opening is configured to be connected to a respective one of the tubes.
- the wall of the outlet portion around the openings may be even, especially without any projecting parts extending into the inner space from the wall of the outlet portion.
- the number of tubes of the tube arrangement may be one single tube or a plurality of tubes.
- the number of tubes may be 2, 3, 4, 5, 6, 7, 8 or even more tubes.
- the number of openings through the wall of the outlet portion may, or may not, be the same as the number of tubes. Thus, one or more of the openings may be connectable to a single one of the tubes and vice versa.
- a first portion of the injector pipe comprises an injector outlet and extends inside the inner space of the header.
- the injector pipe with the injector outlet in the inner space may further increase the circulation of the first and second fluids in the tube arrangement.
- the injector outlet comprises a number of holes through a wall of the injector pipe.
- the wall of the injector pipe around the holes may be even, especially without any projecting parts extending into the inner space from the wall of the injector pipe.
- the holes may thus be just holes having no further elements defining the injector outlet.
- the number of holes may be one single hole or a plurality of holes, for instance the injector outlet may comprise 2, 3, 4, 5, 6, 7, 8 or more holes through the wall of the feed pipe.
- the holes of the injector outlet may have different areas, or equal areas. By selecting the area and position of each hole, it may be possible to control the flow to each tube of the tube arrangement, and to even out the flow distribution to the different tubes. This may be advantageous since the length, and thus the flow resistance, of the tubes may be different.
- the number of holes through the wall of the injector pipe may differ from the number of openings through the wall of the outlet portion. Especially, the number of holes through the injector pipe may be less than the number of openings through the wall of the outlet portion.
- the holes of the injector outlet face the openings of the outlet portion. Center axes of the holes and the openings may, or may not, coincide.
- the first portion of the injector pipe is arranged separated from the wall of the inner space.
- the header outlet has a first flow area and the injector outlet has a second flow area, wherein the first flow area is larger than the second flow area.
- the area of each opening through the wall of the outlet portion may be larger than the area of each hole through the wall of the injector pipe.
- the larger flow area of the header outlet in comparison with the flow area the injector outlet may permit the flow of the first fluid to be larger than the flow of the second fluid. A small flow of the second fluid may thus be used to circulate a large flow of the first fluid.
- a longitudinal center axis of the first portion of the injector pipe extends in parallel to a longitudinal center axis of the outlet portion of the header.
- the two parallel axes may permit holes and the openings to be aligned with each other.
- the inlet portion extends to a first end of the header and the outlet portion extends to a second end of the header, wherein the second end is closed.
- the fluid entering the header thus has to pass out through the header outlet, i.e. through any one of the openings through the wall of the outlet portion.
- the injector pipe extends through the inlet portion into the inner space.
- the injector pipe extends through a wall of the inlet portion.
- the wall of the inlet portion may have the same transversal shape as, and be concentric with, the wall of the outlet portion.
- the inlet extends through the first end.
- the injector pipe has a bottom end in the inner space, wherein the bottom end is closed.
- the heat exchanger system comprising a channel for a high temperature fluid, a tube arrangement arranged in the channel and configured to convey a fluid to be heated, wherein the high temperature fluid is in heat exchanging relation with the fluid in the tube arrangement, and a header device as defined above, wherein the header outlet is connected to the tube arrangement.
- the tube arrangement comprises an outlet member and a number of tubes connected to and extending between the header outlet and the outlet member.
- the number of tubes may be one single tube or a plurality of tubes, for instance 2, 3, 4, 5, 6, 7, 8 or even more tubes.
- the heat exchanger system comprises an outlet conduit configured to discharge the fluid from the tubes via the outlet member, a steam drum connected to the tube arrangement via the outlet conduit and configured to receive steam and water of the fluid that has been heated from the tube arrangement, a steam consumer connected to the steam drum via a steam conduit, and configured to receive steam from the steam drum, a hot well connected to the steam consumer and configured to receive water from the steam consumer, an inlet conduit connecting the steam drum to the header inlet and configured to convey the first fluid from the steam drum to the header inlet, and a feed fluid conduit connecting the hot well to the injector pipe and configured to convey the second fluid from the hot well to the injection pipe.
- the feed fluid conduit connected to the injector pipe of the header device may replace both the down comer and the circulation pump of the prior art.
- the heat exchanger system comprises a feed water pump for forcing the second fluid from the hot well to the injector pipe.
- the object is also achieved by the method initially defined, which comprises injecting a second fluid into the header via an injector pipe connected to the header, thereby forcing the first fluid through the header outlet and into the tube arrangement together with the second fluid, the fluid to be heated comprising the first and second fluids, and conveying the fluid to be heated through the tube arrangement in heat exchanging relation with the high temperature fluid in the channel.
- the method further comprises conveying steam and water of the fluid that has been heated from the tube arrangement to a steam drum, conveying steam from the steam drum to a steam consumer, conveying water from the steam consumer to a hot well, conveying the first fluid from the steam drum to the header inlet, and conveying the second fluid from the hot well to the injector pipe.
- Fig. 1 discloses a heat exchanger system S comprising a vessel 1.
- the vessel 1 comprises a channel 2 for a high temperature fluid.
- the high temperature fluid is flue gases from a burner (not disclosed).
- the heat exchanger system S also comprises a tube arrangement 3 arranged inside the channel 2 and configured to convey a fluid to be heated.
- the high temperature fluid i.e. the flue gases, is in heat exchanging relation with the fluid in the tube arrangement 3.
- the tube arrangement comprises a header device 4 and an outlet member 5.
- the vessel 1 comprises an inlet 6 for the high temperature fluid into the channel 2 and an outlet 7 for the high temperature fluid out from the channel 2.
- the channel 2 has a longitudinal center axis x, see Fig. 2 , which extends through the inlet 6 and the outlet 7.
- the tube arrangement 3 comprises a number of tubes, in the embodiments disclosed four tubes 11, 12, 13, 14 provided in the channel 2 and configured to convey the fluid to be heated.
- the tubes 11-14 may optionally be provided with fins or other surface enlarging elements (not disclosed in the figures).
- the tubes 11-14 extend between and are connected to the header device 4 and the outlet member 5.
- Each tube 11-14 of the tube arrangement 3 comprises or is formed as a helical coil having a plurality of turns.
- the helical coils of the tubes 11-14 are concentric with the longitudinal center axis x.
- the tubes 11-14 are arranged one within the other as can be seen in Fig. 2 .
- the heat exchanger system S also comprises an outlet conduit 20 extending from the outlet member 5 to a steam drum 21.
- the outlet conduit 20 is configured to convey the fluid which has been heated in the tube arrangement 3 from the outlet member 5 to the steam drum 21.
- This fluid may consist of a mixture of steam and water, wherein the steam is collected in an upper part of the steam drum 21 and the water is collected in a lower part of the steam drum 21 as is illustrated in Fig. 1 .
- the heat exchanger system S comprises a steam conduit 22 extending between and connecting the steam drum 21 with a steam consumer 23.
- the steam from the steam drum 21 is thus conveyed to the steam consumer 23 via the steam conduit 22.
- the steam consumer 23 could be any apparatus or equipment where steam is utilized, for instance a heat exchanger or a steam turbine.
- the heat exchanger system S comprises a hot well 24 connected to the steam consumer 23.
- the hot well 24 may be provided adjacent to the steam consumer 23.
- the hot well 24 is configured to receive condensed water from the steam consumer 23.
- An inlet conduit 25 of the heat exchanger system S connects the steam drum 21 to the header device 4 and is configured to convey water from the steam drum 21, herein also referred to as first fluid, to the header device 4.
- a feed fluid conduit 26 of the heat exchanger system S connects the hot well 24 to the header device 4 and is configured to convey the water from the hot well 24, herein also referred to as second fluid, as a feed fluid or water to the header device 4.
- the heat exchanger system S comprises a feed water pump 27 provided on the feed fluid conduit 26 for forcing the second fluid from the hot well 24 to the header device 4.
- the header device 4 is now to be described more closely with reference to Figs. 3-5 .
- the header device 4 according to the first embodiment comprises a header 30 comprising an inlet portion 31 and an outlet portion 32.
- the inlet portion 31 and the outlet portion 32 are separated by a dashed line in Fig. 3 .
- the inlet portion 31 comprises a header inlet 33 for the first fluid fed from the steam drum 21 through the inlet conduit 25.
- the outlet portion 32 comprises a wall 34 surrounding an inner space 35.
- the outlet portion 32 has a longitudinal center axis C and an inner diameter D.
- the outlet portion 32 is circular cylindrical and the wall 34 of the outlet portion 32 continues into the inlet portion 31, and forms a wall 36 of the inlet portion 31.
- the walls 34 and 36 may be formed by one cylinder.
- the inlet portion 31 extends to a first end 30a of the header 30.
- the outlet portion 32 extends to a second end 30b of the header 30.
- the second end 30b is closed by means of an end element 37.
- the outlet portion 32 comprises a header outlet 16, which extends through the wall 34 of the outlet portion 32 and is connected to the tube arrangement 3.
- the tube arrangement 3 comprises four tubes 11-14 for the fluid to be heated.
- the header outlet 16 may comprise a corresponding number of openings 38 extending through the wall 34 of the outlet portion 32, each opening 38 being connected to a respective one of the tubes 11-14. It should be noted that in Figs. 3-5 , only three openings 38 are disclosed. However, it is clear that the header outlet 16 of the header 30 also may comprise four openings 38 arranged along a row as indicated in Figs. 3 and 5 .
- the tube arrangement 3 may comprise any number of tubes 11-14, for instance only one tube, or 2, 3, 4, 5, 6, 7, 8 or even more tubes.
- the header 30 comprises a header outlet 16 with a corresponding number of openings 38 for being connected to a respective one of the tubes 11-14 of the tube arrangement 3.
- the header inlet 33 is connected to the inlet conduit 25, see Fig. 1 .
- the header 30 is thus configured to permit the first fluid, i.e. water, from the steam drum 21 to enter the inner space 35 via the header inlet 33 and to flow from the inner space 35 to the tube arrangement 3 via the header outlet 16, i.e. via the openings 38 of the header outlet 16.
- the header device 4 also comprises an injector pipe 40, connected to the header 30, for the second fluid fed from the hot well 24 through the feed fluid conduit 26, see Fig. 1 .
- a first portion 40' of the injector pipe 40 extends into the inner space 35 as can be clearly seen in Fig. 5 .
- the injector pipe 40 is configured to permit the supply of the second fluid to the inner space 35 in such a manner that the first fluid and the second fluid together are ejected into the tube arrangement 3 via the header outlet 16, i.e. via the openings 38. More particularly, when the second fluid is ejected from the injector pipe 40, the first fluid is forced through the header outlet 16 and into the tube arrangement 3 together with the second fluid.
- the fluid to be heated in the tube arrangement 3 thus comprises the first and second fluids.
- the first portion 40' of the injector pipe 40 comprises an injector outlet 17, which permits the supply of the second fluid to the inner space 35.
- the injector outlet 17 comprises a number of holes 41 extending through a wall 42 of the injector pipe 40.
- the injector pipe 40, at least in the area of the injector outlet 17 has a cylindrical, especially a circular cylindrical shape defining a longitudinal center axis c.
- the first portion 40' of the injector pipe 40 has an outer diameter d.
- the first portion 40' of the injector pipe 40 is positioned in the inner space 35 in such a way that there is a radial distance between the number of holes 41 and the number of openings 38. More specifically, the inner diameter D is greater than the outer diameter d, wherein the first portion 40' of the injector pipe 40 along its complete length is provided at a radial distance from an inner side of the wall 34 of the outlet portion 32.
- the injector pipe 40 extends through the inlet portion 31 into the inner space 35.
- the injector pipe 40 extends through the wall 36 of the inlet portion 31 as can be seen in Figs. 3-5 .
- the injector pipe 40 has a bottom end 43 provided in the inner space 35.
- the bottom end 43 is closed.
- the bottom end 43 is arranged adjacent to the closed second end 30b of the header 30.
- the header outlet 16 has a first flow area, which may be the total area of all openings 38.
- the injector outlet 17 has a second flow area, which may be the total area of all holes 41.
- the first flow area is larger than the second flow area.
- the area of each opening 38 may be larger than the area of each hole 41.
- the area of the holes 41 may be equal or different for the different holes 41.
- the header outlet 16 is provided within an elongated area 44 of the wall 34 of the outlet portion 32.
- the elongated area 44 extends in parallel with the longitudinal center axis C. In the first embodiment, the long sides of the area 44 are tangent to the edges of the openings 38.
- the elongated area 44 has a width ⁇ , see Fig. 3 , i.e. an angular distance between the long sides.
- the width ⁇ is less than 60° with respect to the longitudinal center axis C, preferably less than 50° with respect to the longitudinal center axis C, more preferably less than 40° with respect to the longitudinal center axis C and most preferably less than 30° with respect to the longitudinal center axis C.
- each of the holes 41 is positioned opposite to an opening 38 as can be clearly seen in Fig. 3 .
- the number of holes 41 may be less than the number of openings 38.
- the openings 38 are positioned along a line being parallel with the longitudinal center axis C.
- the holes 41 are positioned along this line being parallel with the longitudinal center axis C.
- the holes 41 may be displaced in relation to the openings 38 along this line, especially such that the openings 38 and the holes 41 are not pairwise aligned with each other.
- water from the hot well 24, herein also referred to as the second fluid will thus be fed into the injector pipe 40 by means of the feed water pump 27.
- the feed water pump 27 raises the pressure of the water from the hot well, thereby forcing the water out of the holes 41 of the injector outlet 17.
- the water ejected from the holes 41 will then bring the water from the steam drum 21, herein also referred to as the first fluid, to be ejected through the openings 38 together with the water from the holes 41.
- circulation of the fluid between the steam drum 21 and the hot well 24 and the tube arrangement 3 will be maintained only by means of the power delivered to the feed water pump 27.
- a second embodiment of the header device 4 is disclosed in Figs. 6-8 .
- the same reference signs are used for elements having the same or corresponding functions in the embodiments disclosed.
- the header device 4 of the second embodiment differs from the header device 4 of the first embodiment in that the inlet portion 31 is curved, more particularly bent 90 degrees, whereas the injector pipe 40 is straight and extends in parallel with the longitudinal center axis C, although the longitudinal center axis c of the injector pipe 40 is displaced with respect to the longitudinal center axis C of the outlet portion 32 as in the first embodiment.
- the injector pipe 40 was curved, more particularly bent 90 degrees, while the inlet portions 31 was straight.
- the longitudinal center axis c of the first portion 40' of the injector pipe 40 is parallel with the longitudinal center axis C of the outlet portion 32.
- the longitudinal center axis c of the first portion 40' of the injector pipe 40 is displaced in a radial direction with respect to the longitudinal center axis C of the outlet portion 32. It should be noted, that the longitudinal center axis c of the first portion 40' of the injector pipe 40 may coincide with the longitudinal center axis C of the outlet portion 32.
- the holes 41 and the openings 38 need not be circular but may have any other shape.
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
Description
- The present invention refers to a header device for a heat exchanger system, for instance for a so called boiler for heating of water to be evaporated. More specifically, the present invention refers to a header device for a heat exchanger system comprising a tube arrangement configured to convey a fluid to be heated, the header device comprising a header comprising an inlet portion and an outlet portion communicating with each other,
wherein the inlet portion comprises a header inlet for a first fluid,
wherein the outlet portion comprises a wall surrounding an inner space,
wherein the outlet portion comprises a header outlet, which extends through the wall and is configured to be connected to the tube arrangement,
wherein the header is configured to permit the first fluid to enter the inner space via the header inlet, and to flow from the inner space to the tube arrangement via the header outlet. - The present invention also refers to a heat exchanger system comprising a header device.
- Furthermore, the present invention refers to a method of heating a fluid in a heat exchanger system comprising a channel, a tube arrangement arranged inside the channel and a header having a header inlet and a header outlet connected to the tube arrangement, the method comprising conveying a high temperature fluid through the channel, and supplying a first fluid to the header via the header inlet.
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US-4,351,277 discloses an economizer of the type having a vertically extending cylindrical casing in which is mounted a plurality of spiral coils arranged in parallel to each other in concentric relation with respect to the central vertical axis of the cylindrical casing. The spiral coils are in the form of finned tubes. A heat exchange fluid is conducted through the spiral coils whereby the coils can extract heat from exhaust gases passing upwardly through the economizer from a boiler. The economizer comprises an inlet header comprising a pipe which receives the fluid to be heated. The pipe has an outer wall and encloses an inner space. Seven outlet openings extend through the wall and are connected to a respective one of the spiral coils. - In the prior art, it is known to use different steam systems for generating steam for generation of heat and/or power. Two main types of steam systems include steam systems with forced circulation and steam systems with natural circulation.
- Steam systems with forced circulation may comprise a heat exchanger, for instance a boiler, for heating and evaporating water by means of a heat source, such as flue gases, solar energy, etc. The heated and evaporated water may be conveyed from the heat exchanger to a so called steam drum, in which water is separated from the steam and collected in a lower part of the steam drum. The steam may then be conveyed from the steam drum to a steam consumer, for instance a heat exchanger or steam turbine. In the steam consumer, heat is recovered from the steam and condensed water may be collected in a so called hot well. By means of a feed water pump, the water from the hot well may be conveyed back to the steam drum. The water collected in the steam drum may be conveyed to a water inlet of the heat exchanger via an inlet conduit by means of a circulation pump. The circulation pump may raise the pressure of the water by for instance about 1 bar, thereby forcing the water into the heat exchanger, where the water is again evaporated.
- Steam systems with natural circulation may differ from the steam systems with forced circulation in that the circulation pump is replaced by a long vertical inlet conduit, a so called down comer. The steam drum should then be arranged at a level well above the water inlet of the heat exchanger. For instance a height of the down comer of approximately 10 m may create a pressure increase of about 1 bar, which may be sufficient to force the water into the heat exchanger and maintain the circulation in the steam system.
- The object of the present invention is to provide an alternative solution to the down comer and the circulation pump. Especially, it is aimed at an alternative solution, which maintain an efficient circulation without the need for a circulation pump and/or a down comer.
- This object is achieved by the header device initially defined which is characterized in that the header device comprises an injector pipe connected to the header and arranged to inject a second fluid into the header to force the first fluid through the header outlet and into the tube arrangement together with the second fluid, the fluid to be heated comprising the first and second fluids.
- By means of such a header device, the second fluid will operate to force the first fluid into the tube arrangement by means of an ejector action. Consequently, it may be dispensed with a circulation pump for the first fluid. Furthermore, there is no need for a long down comer, which means that the steam drum may be positioned relatively closely to the tube arrangement. According to an embodiment of the invention, the tube arrangement comprises a number of tubes for the fluid to be heated, wherein the header outlet comprises a number of openings through the wall of the outlet portion, and wherein each opening is configured to be connected to a respective one of the tubes. The wall of the outlet portion around the openings may be even, especially without any projecting parts extending into the inner space from the wall of the outlet portion.
- The number of tubes of the tube arrangement may be one single tube or a plurality of tubes. For instance, the number of tubes may be 2, 3, 4, 5, 6, 7, 8 or even more tubes.
- The number of openings through the wall of the outlet portion may, or may not, be the same as the number of tubes. Thus, one or more of the openings may be connectable to a single one of the tubes and vice versa.
- According to a further embodiment of the invention, a first portion of the injector pipe comprises an injector outlet and extends inside the inner space of the header. The injector pipe with the injector outlet in the inner space may further increase the circulation of the first and second fluids in the tube arrangement.
- According to a further embodiment, the injector outlet comprises a number of holes through a wall of the injector pipe. The wall of the injector pipe around the holes may be even, especially without any projecting parts extending into the inner space from the wall of the injector pipe. The holes may thus be just holes having no further elements defining the injector outlet.
- The number of holes may be one single hole or a plurality of holes, for instance the injector outlet may comprise 2, 3, 4, 5, 6, 7, 8 or more holes through the wall of the feed pipe.
- The holes of the injector outlet may have different areas, or equal areas. By selecting the area and position of each hole, it may be possible to control the flow to each tube of the tube arrangement, and to even out the flow distribution to the different tubes. This may be advantageous since the length, and thus the flow resistance, of the tubes may be different.
- According to a further embodiment of the invention, the number of holes through the wall of the injector pipe may differ from the number of openings through the wall of the outlet portion. Especially, the number of holes through the injector pipe may be less than the number of openings through the wall of the outlet portion.
- According to a further embodiment of the invention, the holes of the injector outlet face the openings of the outlet portion. Center axes of the holes and the openings may, or may not, coincide.
- According to a further embodiment of the invention, the first portion of the injector pipe is arranged separated from the wall of the inner space. Thus there is a radial distance between the injector outlet and the header outlet. Especially, there may be a radial distance between the holes through the wall of the first portion of the injector pipe and the openings through the wall of the outlet portion. The radial distance may provide a free flow for the first fluid from the header inlet to the tube arrangement.
- According to a further embodiment of the invention, the header outlet has a first flow area and the injector outlet has a second flow area, wherein the first flow area is larger than the second flow area. Especially, the area of each opening through the wall of the outlet portion may be larger than the area of each hole through the wall of the injector pipe. The larger flow area of the header outlet in comparison with the flow area the injector outlet may permit the flow of the first fluid to be larger than the flow of the second fluid. A small flow of the second fluid may thus be used to circulate a large flow of the first fluid.
- According to a further embodiment of the invention, a longitudinal center axis of the first portion of the injector pipe extends in parallel to a longitudinal center axis of the outlet portion of the header. The two parallel axes may permit holes and the openings to be aligned with each other.
- According to a further embodiment of the invention, the inlet portion extends to a first end of the header and the outlet portion extends to a second end of the header, wherein the second end is closed. The fluid entering the header thus has to pass out through the header outlet, i.e. through any one of the openings through the wall of the outlet portion.
- According to a further embodiment of the invention, the injector pipe extends through the inlet portion into the inner space.
- According to a first embodiment, the injector pipe extends through a wall of the inlet portion. The wall of the inlet portion may have the same transversal shape as, and be concentric with, the wall of the outlet portion.
- According to a second alternative embodiment, the inlet extends through the first end.
- According to a further embodiment of the invention, the injector pipe has a bottom end in the inner space, wherein the bottom end is closed.
- The object is also achieved by the heat exchanger system comprising
a channel for a high temperature fluid,
a tube arrangement arranged in the channel and configured to convey a fluid to be heated, wherein the high temperature fluid is in heat exchanging relation with the fluid in the tube arrangement, and
a header device as defined above, wherein the header outlet is connected to the tube arrangement. - According to a further embodiment of the invention, the tube arrangement comprises an outlet member and a number of tubes connected to and extending between the header outlet and the outlet member. The number of tubes may be one single tube or a plurality of tubes, for
instance - According to a further embodiment of the invention, the heat exchanger system comprises
an outlet conduit configured to discharge the fluid from the tubes via the outlet member,
a steam drum connected to the tube arrangement via the outlet conduit and configured to receive steam and water of the fluid that has been heated from the tube arrangement,
a steam consumer connected to the steam drum via a steam conduit, and configured to receive steam from the steam drum,
a hot well connected to the steam consumer and configured to receive water from the steam consumer,
an inlet conduit connecting the steam drum to the header inlet and configured to convey the first fluid from the steam drum to the header inlet, and
a feed fluid conduit connecting the hot well to the injector pipe and configured to convey the second fluid from the hot well to the injection pipe. - In such a heat exchanger system, the feed fluid conduit connected to the injector pipe of the header device may replace both the down comer and the circulation pump of the prior art. According to a further embodiment of the invention, the heat exchanger system comprises a feed water pump for forcing the second fluid from the hot well to the injector pipe.
- The object is also achieved by the method initially defined, which comprises
injecting a second fluid into the header via an injector pipe connected to the header, thereby forcing the first fluid through the header outlet and into the tube arrangement together with the second fluid, the fluid to be heated comprising the first and second fluids, and
conveying the fluid to be heated through the tube arrangement in heat exchanging relation with the high temperature fluid in the channel. - According to a further embodiment of the invention, the method further comprises
conveying steam and water of the fluid that has been heated from the tube arrangement to a steam drum,
conveying steam from the steam drum to a steam consumer, conveying water from the steam consumer to a hot well, conveying the first fluid from the steam drum to the header inlet, and
conveying the second fluid from the hot well to the injector pipe. - The present invention is now to be explained more closely through a description of different embodiments and with reference to the drawings attached hereto.
- Fig. 1
- discloses schematically a diagram of a heat exchanger system according to a first embodiment of the invention.
- Fig. 2
- discloses schematically a vessel and a tube arrangement of the heat exchanger system in
Fig. 1 . - Fig. 3
- discloses schematically a view from above of a header device of the heat exchanger system in
Fig. 1 . - Fig. 4
- discloses an end view of the header device in
Fig. 3 . - Fig. 5
- discloses schematically a longitudinal section along the lines V-V in
Fig. 3 . - Fig. 6
- discloses schematically a view from above of a header device according to a second embodiment of the invention.
- Fig. 7
- discloses schematically an end view of the header device in
Fig. 6 . - Fig. 8
- discloses schematically a longitudinal section along the line IIIV-IIIV in
Fig. 6 . -
Fig. 1 discloses a heat exchanger system S comprising avessel 1. Thevessel 1 comprises achannel 2 for a high temperature fluid. In the embodiments disclosed, the high temperature fluid is flue gases from a burner (not disclosed). The heat exchanger system S also comprises atube arrangement 3 arranged inside thechannel 2 and configured to convey a fluid to be heated. The high temperature fluid, i.e. the flue gases, is in heat exchanging relation with the fluid in thetube arrangement 3. The tube arrangement comprises aheader device 4 and anoutlet member 5. - Furthermore, the
vessel 1 comprises aninlet 6 for the high temperature fluid into thechannel 2 and anoutlet 7 for the high temperature fluid out from thechannel 2. Thechannel 2 has a longitudinal center axis x, seeFig. 2 , which extends through theinlet 6 and theoutlet 7. - As can be seen in
Fig. 2 , thetube arrangement 3 comprises a number of tubes, in the embodiments disclosed fourtubes channel 2 and configured to convey the fluid to be heated. - The tubes 11-14 may optionally be provided with fins or other surface enlarging elements (not disclosed in the figures).
- The tubes 11-14 extend between and are connected to the
header device 4 and theoutlet member 5. - Each tube 11-14 of the
tube arrangement 3 comprises or is formed as a helical coil having a plurality of turns. The helical coils of the tubes 11-14 are concentric with the longitudinal center axis x. The tubes 11-14 are arranged one within the other as can be seen inFig. 2 . - The heat exchanger system S also comprises an
outlet conduit 20 extending from theoutlet member 5 to asteam drum 21. Theoutlet conduit 20 is configured to convey the fluid which has been heated in thetube arrangement 3 from theoutlet member 5 to thesteam drum 21. This fluid may consist of a mixture of steam and water, wherein the steam is collected in an upper part of thesteam drum 21 and the water is collected in a lower part of thesteam drum 21 as is illustrated inFig. 1 . - Furthermore, the heat exchanger system S comprises a
steam conduit 22 extending between and connecting thesteam drum 21 with asteam consumer 23. The steam from thesteam drum 21 is thus conveyed to thesteam consumer 23 via thesteam conduit 22. Thesteam consumer 23 could be any apparatus or equipment where steam is utilized, for instance a heat exchanger or a steam turbine. - Furthermore, the heat exchanger system S comprises a
hot well 24 connected to thesteam consumer 23. Thehot well 24 may be provided adjacent to thesteam consumer 23. Thehot well 24 is configured to receive condensed water from thesteam consumer 23. - An
inlet conduit 25 of the heat exchanger system S connects thesteam drum 21 to theheader device 4 and is configured to convey water from thesteam drum 21, herein also referred to as first fluid, to theheader device 4. - A
feed fluid conduit 26 of the heat exchanger system S connects thehot well 24 to theheader device 4 and is configured to convey the water from thehot well 24, herein also referred to as second fluid, as a feed fluid or water to theheader device 4. - Furthermore, the heat exchanger system S comprises a
feed water pump 27 provided on thefeed fluid conduit 26 for forcing the second fluid from thehot well 24 to theheader device 4. - The
header device 4 is now to be described more closely with reference toFigs. 3-5 . Theheader device 4 according to the first embodiment comprises aheader 30 comprising aninlet portion 31 and anoutlet portion 32. Theinlet portion 31 and theoutlet portion 32 are separated by a dashed line inFig. 3 . Theinlet portion 31 comprises aheader inlet 33 for the first fluid fed from thesteam drum 21 through theinlet conduit 25. Theoutlet portion 32 comprises awall 34 surrounding aninner space 35. Theoutlet portion 32 has a longitudinal center axis C and an inner diameter D. - In the first embodiment, the
outlet portion 32 is circular cylindrical and thewall 34 of theoutlet portion 32 continues into theinlet portion 31, and forms awall 36 of theinlet portion 31. Thus thewalls - The
inlet portion 31 extends to afirst end 30a of theheader 30. Theoutlet portion 32 extends to asecond end 30b of theheader 30. Thesecond end 30b is closed by means of anend element 37. - The
outlet portion 32 comprises aheader outlet 16, which extends through thewall 34 of theoutlet portion 32 and is connected to thetube arrangement 3. - As mentioned above, the
tube arrangement 3 comprises four tubes 11-14 for the fluid to be heated. Theheader outlet 16 may comprise a corresponding number ofopenings 38 extending through thewall 34 of theoutlet portion 32, each opening 38 being connected to a respective one of the tubes 11-14. It should be noted that inFigs. 3-5 , only threeopenings 38 are disclosed. However, it is clear that theheader outlet 16 of theheader 30 also may comprise fouropenings 38 arranged along a row as indicated inFigs. 3 and 5 . - It is also to be noted that the
tube arrangement 3 may comprise any number of tubes 11-14, for instance only one tube, or 2, 3, 4, 5, 6, 7, 8 or even more tubes. In any case, theheader 30 comprises aheader outlet 16 with a corresponding number ofopenings 38 for being connected to a respective one of the tubes 11-14 of thetube arrangement 3. - The
header inlet 33 is connected to theinlet conduit 25, seeFig. 1 . Theheader 30 is thus configured to permit the first fluid, i.e. water, from thesteam drum 21 to enter theinner space 35 via theheader inlet 33 and to flow from theinner space 35 to thetube arrangement 3 via theheader outlet 16, i.e. via theopenings 38 of theheader outlet 16. - The
header device 4 also comprises aninjector pipe 40, connected to theheader 30, for the second fluid fed from thehot well 24 through thefeed fluid conduit 26, seeFig. 1 . A first portion 40' of theinjector pipe 40 extends into theinner space 35 as can be clearly seen inFig. 5 . Theinjector pipe 40 is configured to permit the supply of the second fluid to theinner space 35 in such a manner that the first fluid and the second fluid together are ejected into thetube arrangement 3 via theheader outlet 16, i.e. via theopenings 38. More particularly, when the second fluid is ejected from theinjector pipe 40, the first fluid is forced through theheader outlet 16 and into thetube arrangement 3 together with the second fluid. The fluid to be heated in thetube arrangement 3 thus comprises the first and second fluids. - To that end the first portion 40' of the
injector pipe 40 comprises aninjector outlet 17, which permits the supply of the second fluid to theinner space 35. Theinjector outlet 17 comprises a number ofholes 41 extending through awall 42 of theinjector pipe 40. Theinjector pipe 40, at least in the area of theinjector outlet 17 has a cylindrical, especially a circular cylindrical shape defining a longitudinal center axis c. The first portion 40' of theinjector pipe 40 has an outer diameter d. - As can be seen in
Fig. 5 , the first portion 40' of theinjector pipe 40 is positioned in theinner space 35 in such a way that there is a radial distance between the number ofholes 41 and the number ofopenings 38. More specifically, the inner diameter D is greater than the outer diameter d, wherein the first portion 40' of theinjector pipe 40 along its complete length is provided at a radial distance from an inner side of thewall 34 of theoutlet portion 32. - The
injector pipe 40 extends through theinlet portion 31 into theinner space 35. In the first embodiment, theinjector pipe 40 extends through thewall 36 of theinlet portion 31 as can be seen inFigs. 3-5 . - The
injector pipe 40 has abottom end 43 provided in theinner space 35. Thebottom end 43 is closed. In the first embodiment, thebottom end 43 is arranged adjacent to the closedsecond end 30b of theheader 30. - The
header outlet 16 has a first flow area, which may be the total area of allopenings 38. Theinjector outlet 17 has a second flow area, which may be the total area of all holes 41. The first flow area is larger than the second flow area. Especially, the area of eachopening 38 may be larger than the area of eachhole 41. The area of theholes 41 may be equal or different for thedifferent holes 41. - The
header outlet 16 is provided within anelongated area 44 of thewall 34 of theoutlet portion 32. Theelongated area 44 extends in parallel with the longitudinal center axis C. In the first embodiment, the long sides of thearea 44 are tangent to the edges of theopenings 38. - The
elongated area 44 has a width α, seeFig. 3 , i.e. an angular distance between the long sides. The width α is less than 60° with respect to the longitudinal center axis C, preferably less than 50° with respect to the longitudinal center axis C, more preferably less than 40° with respect to the longitudinal center axis C and most preferably less than 30° with respect to the longitudinal center axis C. - As can be seen in
Fig. 3 , all of theopenings 38 are positioned within theelongated area 44. Theinjector outlet 17 faces theelongated area 44. Consequently, all of theholes 41 of theinjector outlet 17 face theelongated area 44 and thus theopenings 38. - In the first embodiment each of the
holes 41 is positioned opposite to anopening 38 as can be clearly seen inFig. 3 . However, as mentioned above, the number ofholes 41 may be less than the number ofopenings 38. - Moreover, in the first embodiment, the
openings 38 are positioned along a line being parallel with the longitudinal center axis C. Also theholes 41 are positioned along this line being parallel with the longitudinal center axis C. In particular, it should be mentioned that theholes 41 may be displaced in relation to theopenings 38 along this line, especially such that theopenings 38 and theholes 41 are not pairwise aligned with each other. - During operation of the heat exchanger system S, water from the
hot well 24, herein also referred to as the second fluid, will thus be fed into theinjector pipe 40 by means of thefeed water pump 27. Thefeed water pump 27 raises the pressure of the water from the hot well, thereby forcing the water out of theholes 41 of theinjector outlet 17. The water ejected from theholes 41 will then bring the water from thesteam drum 21, herein also referred to as the first fluid, to be ejected through theopenings 38 together with the water from theholes 41. In such a way, circulation of the fluid between thesteam drum 21 and thehot well 24 and thetube arrangement 3 will be maintained only by means of the power delivered to thefeed water pump 27. - A second embodiment of the
header device 4 is disclosed inFigs. 6-8 . The same reference signs are used for elements having the same or corresponding functions in the embodiments disclosed. Theheader device 4 of the second embodiment differs from theheader device 4 of the first embodiment in that theinlet portion 31 is curved, more particularly bent 90 degrees, whereas theinjector pipe 40 is straight and extends in parallel with the longitudinal center axis C, although the longitudinal center axis c of theinjector pipe 40 is displaced with respect to the longitudinal center axis C of theoutlet portion 32 as in the first embodiment. In the first embodiment theinjector pipe 40 was curved, more particularly bent 90 degrees, while theinlet portions 31 was straight. - As can be seen in
Figs 5 and8 , the longitudinal center axis c of the first portion 40' of theinjector pipe 40 is parallel with the longitudinal center axis C of theoutlet portion 32. In the first and second embodiments, the longitudinal center axis c of the first portion 40' of theinjector pipe 40 is displaced in a radial direction with respect to the longitudinal center axis C of theoutlet portion 32. It should be noted, that the longitudinal center axis c of the first portion 40' of theinjector pipe 40 may coincide with the longitudinal center axis C of theoutlet portion 32. - The present invention is not limited to the embodiments disclosed but may be varied and modified within the scope of the following claims.
- As an example, the
holes 41 and theopenings 38 need not be circular but may have any other shape.
Claims (15)
- A header device (4) for a heat exchanger system (S) comprising a tube arrangement (3) configured to convey a fluid to be heated, the header device (4) comprising a header (30) comprising an inlet portion (31) and an outlet portion (32) communicating with each other,
wherein the inlet portion (31) comprises a header inlet (33) for a first fluid,
wherein the outlet portion (32) comprises a wall (34) surrounding an inner space (35),
wherein the outlet portion (32) comprises a header outlet (16), which extends through the wall (34) and is configured to be connected to the tube arrangement (3),
wherein the header (30) is configured to permit the first fluid to enter the inner space (35) via the header inlet (33), and to flow from the inner space (35) to the tube arrangement (3) via the header outlet (16),
characterized in
that the header device (4) comprises an injector pipe (40) connected to the header (30) and arranged to inject a second fluid into the header (30) to force the first fluid through the header outlet (16) and into the tube arrangement (3) together with the second fluid, the fluid to be heated comprising the first and second fluids. - A header device (4) according to claim 1, wherein the tube arrangement (3) comprises a number of tubes (11-14) for the fluid to be heated, wherein the header outlet (16) comprises a number of openings (38) through the wall (34) of the outlet portion (32), and wherein each opening (38) is configured to be connected to one of the tubes (11-14).
- A header device (4) according to claim 2, wherein a first portion (40') of the injector pipe (40) comprises an injector outlet (17) and extends inside the inner space (35) of the header (30).
- A header device (4) according to claim 3, wherein the injector outlet (17) comprises a number of holes (41) through a wall (42) of the injector pipe (40).
- A header device (4) according to claim 4, wherein the holes (41) of the injector outlet (17) face the openings (38) of the outlet portion (32).
- A header device (4) according to any of claims 3-5, wherein the first portion (40') of the injector pipe (40) is arranged separated from the wall (34) of the inner space (35).
- A header device (4) according to any of claims 3-6, wherein the header outlet (16) has a first flow area and the injector outlet (17) has a second flow area, and wherein the first flow area is larger than the second flow area.
- A header device (4) according to any of claims 3-7, wherein a longitudinal center axis (c) of the first portion (40') of the injector pipe (40) extends in parallel to a longitudinal center axis (C) of the outlet portion (32) of the header (30).
- A header device (4) according to any one of the preceding claims, wherein the inlet portion (31) extends to a first end (30a) of the header (30) and the outlet portion (32) extends to a second end (30b) of the header (30), and wherein the second end (30b) is closed.
- A heat exchanger system (S) comprising
a channel (2) for a high temperature fluid,
a tube arrangement (3) arranged in the channel (2) and configured to convey a fluid to be heated, wherein the high temperature fluid is in heat exchanging relation with the fluid in the tube arrangement (3), and
a header device (4) according to any one of the preceding claims, wherein the header outlet (16) is connected to the tube arrangement (3). - A heat exchanger system (S) according to claim 10, wherein the tube arrangement (3) comprises an outlet member (5) and a number of tubes (11-14) connected to and extending between the header outlet (16) and the outlet member (5).
- A heat exchanger system (S) according to claim 11, wherein the heat exchanger system (S) comprises
an outlet conduit (20) configured to discharge the fluid from the tubes (11-14) via the outlet member (5),
a steam drum (21) connected to the tube arrangement (3) via the outlet conduit (20) and configured to receive steam and water of the fluid that has been heated from the tube arrangement (3),
a steam consumer (23) connected to the steam drum (21) via a steam conduit (22), and configured to receive steam from the steam drum (21),
a hot well (24) connected to the steam consumer (23) and configured to receive water from the steam consumer (23),
an inlet conduit (25) connecting the steam drum (21) to the header inlet (33) and configured to convey the first fluid from the steam drum (21) to the header inlet (33), and
a feed fluid conduit (26) connecting the hot well (24) to the injector pipe (40) and configured to convey the second fluid from the hot well (24) to the injector pipe (40). - A heat exchanger system (S) according to claim 12, wherein the heat exchanger system (S) comprises a feed water pump (27) for forcing the second fluid from the hot well (24) to the injector pipe (40).
- A method of heating a fluid in a heat exchanger system comprising a channel (2), a tube arrangement (3) arranged inside the channel (2) and a header (30) having a header inlet (33) and a header outlet (16) connected to the tube arrangement (3),
the method comprising
conveying a high temperature fluid through the channel (2), supplying a first fluid to the header (30) via the header inlet (33),
the method being characterized in further comprising injecting a second fluid into the header (30) via an injector pipe (40) connected to the header (30) thereby forcing the first fluid through the header outlet (16) and into the tube arrangement (3) together with the second fluid, the fluid to be heated comprising the first and second fluids, and
conveying the fluid to be heated through the tube arrangement (3) in heat exchanging relation with the high temperature fluid in the channel (2). - A method according to claim 14, further comprising
conveying steam and water of the fluid that has been heated from the tube arrangement (3) to a steam drum (21),
conveying steam from the steam drum (21) to a steam consumer (23),
conveying water from the steam consumer (23) to a hot well (24),
conveying the first fluid from the steam drum (21) to the header inlet (33), and
conveying the second fluid from the hot well (24) to the injector pipe (49).
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DK15170495.4T DK3101339T3 (en) | 2015-06-03 | 2015-06-03 | ASSEMBLY DEVICE FOR A HEAT EXCHANGER SYSTEM, A HEAT EXCHANGER SYSTEM AND A PROCEDURE FOR HEATING A FLUID |
EP15170495.4A EP3101339B1 (en) | 2015-06-03 | 2015-06-03 | A header device for a heat exchanger system, a heat exchanger system, and a method of heating a fluid |
PL15170495T PL3101339T3 (en) | 2015-06-03 | 2015-06-03 | A header device for a heat exchanger system, a heat exchanger system, and a method of heating a fluid |
ES15170495T ES2870720T3 (en) | 2015-06-03 | 2015-06-03 | A collecting device for a heat exchanger system, a heat exchanger system, and a method for heating a fluid |
KR1020177037646A KR101998505B1 (en) | 2015-06-03 | 2016-05-25 | HEATER DEVICE FOR HEAT EXCHANGER SYSTEM, HEAT EXCHANGER SYSTEM, AND METHOD OF HEATING FLUID |
PCT/EP2016/061799 WO2016193095A1 (en) | 2015-06-03 | 2016-05-25 | A header device for a heat exchanger system, a heat exchanger system, and a method of heating a fluid |
CN201680032251.5A CN107667271B (en) | 2015-06-03 | 2016-05-25 | Header device for a heat exchanger system, heat exchanger system and method for heating a fluid |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP15170495.4A EP3101339B1 (en) | 2015-06-03 | 2015-06-03 | A header device for a heat exchanger system, a heat exchanger system, and a method of heating a fluid |
Publications (2)
Publication Number | Publication Date |
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EP3101339A1 true EP3101339A1 (en) | 2016-12-07 |
EP3101339B1 EP3101339B1 (en) | 2021-04-14 |
Family
ID=53276799
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP15170495.4A Active EP3101339B1 (en) | 2015-06-03 | 2015-06-03 | A header device for a heat exchanger system, a heat exchanger system, and a method of heating a fluid |
Country Status (7)
Country | Link |
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EP (1) | EP3101339B1 (en) |
KR (1) | KR101998505B1 (en) |
CN (1) | CN107667271B (en) |
DK (1) | DK3101339T3 (en) |
ES (1) | ES2870720T3 (en) |
PL (1) | PL3101339T3 (en) |
WO (1) | WO2016193095A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPWO2020100897A1 (en) * | 2018-11-12 | 2021-06-10 | 三菱電機株式会社 | How to manufacture heat exchangers and heat exchangers |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN108692591A (en) * | 2018-06-05 | 2018-10-23 | 常州中能环境工程有限公司 | Steam heater component |
Citations (5)
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US4072182A (en) * | 1977-01-05 | 1978-02-07 | International Power Technology, Inc. | Pressure staged heat exchanger |
US4351277A (en) | 1981-01-23 | 1982-09-28 | Tranter, Inc. | Sootblower for economizer |
DE9102102U1 (en) * | 1991-02-22 | 1991-05-16 | Platte, Friedrich Hermann | |
WO2011092317A2 (en) * | 2010-01-29 | 2011-08-04 | Tanjung Citech Uk Limited | A steam generation unit |
WO2015039158A1 (en) * | 2013-09-19 | 2015-03-26 | Technische Universität Wien | Device and method for temporary storage of thermal energy |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE8714685U1 (en) * | 1987-11-04 | 1988-03-03 | Faerber, Wilfried, 7602 Oberkirch, De | |
US5910167A (en) * | 1997-10-20 | 1999-06-08 | Modine Manufacturing Co. | Inlet for an evaporator |
KR20070091201A (en) * | 2005-02-02 | 2007-09-07 | 캐리어 코포레이션 | Heat exchanger with fluid expansion in header |
US10274192B2 (en) * | 2012-01-17 | 2019-04-30 | General Electric Technology Gmbh | Tube arrangement in a once-through horizontal evaporator |
-
2015
- 2015-06-03 ES ES15170495T patent/ES2870720T3/en active Active
- 2015-06-03 EP EP15170495.4A patent/EP3101339B1/en active Active
- 2015-06-03 PL PL15170495T patent/PL3101339T3/en unknown
- 2015-06-03 DK DK15170495.4T patent/DK3101339T3/en active
-
2016
- 2016-05-25 KR KR1020177037646A patent/KR101998505B1/en active IP Right Grant
- 2016-05-25 WO PCT/EP2016/061799 patent/WO2016193095A1/en active Application Filing
- 2016-05-25 CN CN201680032251.5A patent/CN107667271B/en active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4072182A (en) * | 1977-01-05 | 1978-02-07 | International Power Technology, Inc. | Pressure staged heat exchanger |
US4351277A (en) | 1981-01-23 | 1982-09-28 | Tranter, Inc. | Sootblower for economizer |
DE9102102U1 (en) * | 1991-02-22 | 1991-05-16 | Platte, Friedrich Hermann | |
WO2011092317A2 (en) * | 2010-01-29 | 2011-08-04 | Tanjung Citech Uk Limited | A steam generation unit |
WO2015039158A1 (en) * | 2013-09-19 | 2015-03-26 | Technische Universität Wien | Device and method for temporary storage of thermal energy |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPWO2020100897A1 (en) * | 2018-11-12 | 2021-06-10 | 三菱電機株式会社 | How to manufacture heat exchangers and heat exchangers |
Also Published As
Publication number | Publication date |
---|---|
PL3101339T3 (en) | 2021-08-16 |
CN107667271B (en) | 2020-08-28 |
KR101998505B1 (en) | 2019-07-09 |
WO2016193095A1 (en) | 2016-12-08 |
CN107667271A (en) | 2018-02-06 |
KR20180014067A (en) | 2018-02-07 |
DK3101339T3 (en) | 2021-07-26 |
ES2870720T3 (en) | 2021-10-27 |
EP3101339B1 (en) | 2021-04-14 |
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