EP3198214B1 - Bloc en nid d'abeilles et éléments échangeurs de chaleur fabriqués à partir de celui-ci, notamment pour épurateurs de gaz de fumée de centrales électriques - Google Patents

Bloc en nid d'abeilles et éléments échangeurs de chaleur fabriqués à partir de celui-ci, notamment pour épurateurs de gaz de fumée de centrales électriques Download PDF

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Publication number
EP3198214B1
EP3198214B1 EP15780777.7A EP15780777A EP3198214B1 EP 3198214 B1 EP3198214 B1 EP 3198214B1 EP 15780777 A EP15780777 A EP 15780777A EP 3198214 B1 EP3198214 B1 EP 3198214B1
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EP
European Patent Office
Prior art keywords
honeycomb block
less
heat exchanger
honeycomb
accordance
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German (de)
English (en)
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EP3198214A1 (fr
Inventor
Michael Schlipf
Katja Widmann
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ElringKlinger AG
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ElringKlinger AG
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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
    • F28D19/00—Regenerative heat-exchange apparatus in which the intermediate heat-transfer medium or body is moved successively into contact with each heat-exchange medium
    • F28D19/04—Regenerative heat-exchange apparatus in which the intermediate heat-transfer medium or body is moved successively into contact with each heat-exchange medium using rigid bodies, e.g. mounted on a movable carrier
    • F28D19/041—Regenerative heat-exchange apparatus in which the intermediate heat-transfer medium or body is moved successively into contact with each heat-exchange medium using rigid bodies, e.g. mounted on a movable carrier with axial flow through the intermediate heat-transfer medium
    • F28D19/042—Rotors; Assemblies of heat absorbing masses
    • F28D19/044—Rotors; Assemblies of heat absorbing masses shaped in sector form, e.g. with baskets
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
    • F28F21/06—Constructions of heat-exchange apparatus characterised by the selection of particular materials of plastics material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2255/00—Heat exchanger elements made of materials having special features or resulting from particular manufacturing processes
    • F28F2255/06—Heat exchanger elements made of materials having special features or resulting from particular manufacturing processes composite, e.g. polymers with fillers or fibres

Definitions

  • the invention relates to a honeycomb block, in particular for the production of heat exchanger elements for flue gas cleaning systems of power plants, wherein the honeycomb block comprises a body made of a plastic material integrally formed with a plurality of mutually parallel flow channels, which are separated by channel walls, and a heat exchanger element under Use of honeycomb blocks according to the invention is made.
  • honeycomb blocks of the type mentioned and produced therefrom heat exchanger elements for use in flue gas cleaning systems of power plants are for example from the DE 195 12 351 C1 known.
  • the honeycomb blocks disclosed therein are made from a polytetrafluoroethylene regenerate alone or in admixture with another plastic and optionally contain fillers.
  • honeycomb blocks are sufficiently heat resistant and resistant to the corrosive components contained in the flue gases, but the mechanical strength is usually too low to use them economically. In addition, conditions are necessary in the production, which make the manufacturing process as such expensive.
  • Heat exchanger elements of such honeycomb blocks are provided in particular for use in so-called Ljungström heat exchangers. These are used in coal or gas fired power plants mainly in flue gas desulphurisation (REA) use. In addition to use in REA, Ljungström heat exchangers in power plants are also used to preheat the combustion air (LUVO) or to additionally heat the flue gases for optimum reaction conditions in the selective catalytic denitrification (SCR) modules.
  • REA flue gas desulphurisation plants
  • pure and raw gas flows are directed in opposite directions through a rotor, which is equipped with the heat exchanger elements. By doing Area in which raw or flue gas flows through the rotor, the heat exchanger elements are heated, the raw or flue gas cools down. In the region in which clean gas flows through the rotor in the reverse flow direction, the heat exchanger elements release energy to the clean gas, the temperature of which rises while the heat exchanger elements cool down again.
  • the object of the invention is to propose a honeycomb block, from the economic heat exchanger elements with sufficiently good mechanical properties can be manufactured, which meet the above requirements.
  • the virgin polytetrafluoroethylene (PTFE) in an amount of about 80 wt .-% or more and optionally a non-PTFE high performance polymer in a proportion of about 20 wt .-% or surprisingly, it is not only possible to produce honeycomb blocks under significantly less demanding production conditions than those in the DE 195 12 351 C1 honeycomb blocks according to the invention also have mechanical strength values, in particular for the tear strength and the elongation at break, which are considerably higher than those of conventionally manufactured honeycomb blocks. The same applies to heat exchanger elements produced from the honeycomb blocks according to the invention.
  • a virgin PTFE having a melting enthalpy of about 40 J / g or more is used as the plastic.
  • the density of preferred PTFE materials is about 2.1 g / cm 3 or more.
  • the virgin PTFE to be used in the present invention may have a co-monomer content of about 1 wt% or less, preferably about 0.1 wt% or less.
  • Virgin PTFE materials having such a co-monomer content are typically weldable without the addition of foreign material (e.g., PFA).
  • Typical co-monomers are hexafluoropropylene, perfluoroalkyl vinyl ether, perfluoro (2,2-dimethyl-1,3-dioxole) and chlorotrifluoroethylene.
  • Sintered PTFE and this includes PTFE Regenerat to count, can be obtained due to the lower crystallinity compared to virginal PTFE only with particle sizes of about 400 microns or larger.
  • the primary particle size is referred to above since particle agglomerates of virgin PTFE with significantly larger particle sizes can also be processed, provided that the particle agglomerates decompose into their primary particles under the processing conditions.
  • particle agglomerates having particle sizes of from 100 ⁇ m to 3000 ⁇ m can be used if they break down into the primary particles at about 150 bar or less.
  • Suitable fillers include both non-metallic and metallic fillers, which can also be used in a mixture. Not only particulate fillers but also fibrous fillers come into question as fillers. In particular, both the thermal conductivity and the heat capacity of the plastic materials to be used according to the invention and optionally also the mechanical properties of the honeycomb block according to the invention can be optimized with the fillers.
  • the plastic material contains a non-metallic filler and / or a metallic filler, wherein the average particle size D 50 of the respective filler is preferably about 100 microns or less.
  • the particle size of the fillers will be about 2 ⁇ m to about 300 ⁇ m, preferably about 2 ⁇ m to about 150 ⁇ m, with regard to the desired uniform distribution in the plastic material.
  • the ratio of the average particle size D 50 of the primary particles of the plastic or of the plastics to the mean particle size D 50 of the fillers is preferably in the range from about 1: 2 to about 2: 1.
  • the non-metallic filler is present in a proportion of up to about 80 wt .-%, more preferably in a proportion of up to about 40 wt .-%, in certain embodiments, more preferably of up to about 35 wt .-% contained in the plastic material. Due to its higher density, proportions of up to about 90% by weight, preferably up to about 60% by weight, of the metallic filler may be contained in the plastic material.
  • the total volume fraction of the fillers in the plastic material may be at most about 90% by volume, but should preferably be about 50% by volume or less, more preferably about 40% by volume or less.
  • the plastic material processed into the honeycomb block has a tensile strength of about 10 N / mm 2 or more, measured according to ISO 12086-2 (EN ISO 12086-2: 2006-05) with a strip-shaped test specimen having a cross section of 1 ⁇ 5 mm 2 .
  • the tensile strength of the plastic material of the honeycomb block in these strip-shaped specimens is preferably 15 N / mm 2 or more, more preferably about 20 N / mm 2 or more, still more preferably about 25 N / mm 2 or more.
  • the tear strength will be about 35 N / mm 2 or less. Within the range of tear strengths defined above, higher values are achieved with plastic materials without fillers, and lower values with plastic materials with fillers.
  • the elongation at break of the plastic material processed to the honeycomb block measured according to ISO 12086-2 (EN ISO 12086-2: 2006-05) on a strip-shaped test specimen with a cross section of 1 ⁇ 5 mm 2 , is about 80% or more, in particular approximately
  • honeycomb blocks are available with very cleanable surfaces, for which purpose the average roughness Ra of the surfaces of the honeycomb block, measured according to DIN EN ISO 1302 in the longitudinal direction of the honeycomb block channels, about 10 microns or less, preferably about 5 microns or less.
  • the roughness depth Rz of the surfaces of the honeycomb block measured according to DIN EN ISO 1302 in the longitudinal direction of the flow channels of the honeycomb body, is approximately 50 ⁇ m or less, in particular approximately 40 ⁇ m or less, preferably approximately 30 ⁇ m or less , most preferably about 20 microns or less.
  • honeycomb blocks according to the invention preferably have a plastic material with a thermal conductivity of about 0.3 W / (m ⁇ K) or more.
  • honeycomb blocks according to the invention preferably have a plastic material with a heat capacity of about 0.9 J / (g ⁇ K) or more.
  • thermal conductivity and the heat capacity promote effective heat exchange between the heat exchanger elements formed from the honeycomb block and the flue gas flowing through, as well as the storage capacity of the heat exchanger element.
  • honeycomb blocks In the geometry of the honeycomb blocks according to the invention a variety of configurations are possible.
  • the flow channels have a polygonal, in particular a square or hexagonal, cross section.
  • the channel walls of the flow channels of the honeycomb block preferably have a thickness of about 0.8 mm to about 2 mm, more preferably up to about 1.6 mm.
  • the open cross-sectional area of the flow channels of a honeycomb block preferably sums up to about 75% or more of the base area of the honeycomb block.
  • honeycomb blocks of the present invention can be used either as such or in their geometry by cutting adapted as a heat exchanger element.
  • the heat exchanger elements which serve the assembly of a rotor, are typically required in several different dimensions of their bases.
  • the honeycomb blocks can be produced economically as units with a base of, for example, 440 mm x 450 mm and a height (corresponding to the flow channel length) of 150 mm.
  • the dimensions of the base are, for example, 510 mm x 525 mm at a height of 250 mm.
  • the flow channel geometry may, for example, have a hexagonal cross section with an edge length of approximately 7.2 mm.
  • a heat exchanger element in the geometry required in each case can be prepared in a simple manner using two or more inventive honeycomb blocks.
  • the two or more honeycomb blocks can be connected one behind the other in the longitudinal direction of the flow channels for varying the flow channel length.
  • the flow channels of the honeycomb blocks are preferably aligned in this case.
  • spacers can be placed between the honeycomb bodies, which ensure sufficient gas flow when the flow channels are not aligned. These can be mounted, for example, in the corner regions of the honeycomb body.
  • the connection of the spacer with the honeycomb body can be done mechanically, for example by means of positive and non-positive, or cohesively, for example by welding or gluing.
  • the honeycomb blocks are connected with the flow channels in parallel side by side to form a heat exchanger element.
  • connection of the honeycomb blocks to a heat exchanger element which can be handled as a whole can be effected mechanically, for example by means of a positive or non-positive connection, or cohesively, for example by gluing or welding.
  • the heat exchanger element can also be adapted in this case in its geometry to the requirements by cutting or Zusägen and in particular in a plane perpendicular to the longitudinal direction of the flow channels are wedge-shaped.
  • honeycomb structures which have been severed during the blanking of the honeycomb blocks or honeycomb structures can readily be connected to a honeycomb block in the manner already described in order to produce further heat exchanger elements.
  • FIG. 1 shows a schematic representation of a coal power plant 10 with a burner 12 and a flue gas cleaning system 14.
  • the burner 12 comprises a boiler 16 with a combustion chamber 18, the coal via a fuel supply line 20 coal in ground form and via a supply line 22 combustion air is supplied.
  • a steam generator 24 is arranged in the boiler 16, in which for the operation of a steam turbine 26 water vapor is generated.
  • the steam turbine 26 drives a power generator, not shown.
  • the resulting during combustion of the coal in the combustion chamber 18 flue gas is removed via a flue gas pipe 28 from the boiler 16.
  • the combustion air is passed via the supply line 22 before feeding into the combustion chamber 18 of the boiler 16 via a heat exchanger 30 and heated there by the flue gas fed via the flue gas line 28.
  • the heat exchanger has a supply air region 32 and a flue gas region 34.
  • a rotor 36 is equipped with a heat storage and transmission medium available, which absorbs heat from the flue gas passed through there in the flue gas region 34 and emits the heat to the passing therethrough combustion air when passing the opposite supply air region 32.
  • the temperature of the flue gas sinks during passage through the heat exchanger 30, for example, from about 250 ° C to about 160 ° C, while the temperature of the supply air of ambient temperature, for example, increased to about 150 ° C.
  • the diameter of the rotor 36 is often in the range of 5 m to 25 m, depending on the required heat exchanger capacity.
  • the weight of a fully loaded with a heat storage and transmission medium rotor can be 1000 tons and more depending on the size, especially when only a conventional medium based on enameled steel sheets is used.
  • the cooled flue gas is fed to dedusting through line 29 to an electrostatic particle separator, hereinafter referred to as ESP unit 44 for short.
  • the treated (largely dusted) flue gas via a line 48 a regenerative heat exchanger 50, also called REGA-VO, fed, in which the processed flue gas, for example, from about 160 ° C to a temperature of about 90 ° C or lower is cooled further.
  • a regenerative heat exchanger 50 also called REGA-VO
  • the heat exchanger 50 contains a rotor 52 equipped with a heat storage and transmission medium, which receives the heat emitted by the dedusted flue gas, which is for this purpose passed through a first region 54 of the heat exchanger 50 and then fed via line 62 to a flue gas desulfurization system 64.
  • the temperature of the dedusted flue gas drops when passing through the first region 54 of the heat exchanger 50 from, for example, about 150 ° C to about 85 to about 90 ° C.
  • the desulfurized flue gas coming from the flue gas desulphurisation system 64 still has a temperature in the range of, for example, about 40 to about 50 ° C. and is conducted via the line 66 through a second region 56 of the heat exchanger 50 in countercurrent to the flue gas which has not yet been desulfurized and heated to about 90 to about 100 ° C.
  • a line 68 leads the desulfurized, reheated flue gas to the chimney 70.
  • the flue gas has a sufficiently large buoyancy to get out of the chimney into the atmosphere.
  • REA flue gas desulphurisation plant
  • SCR catalytic denitrification
  • Ljungström gas preheaters are used as heat exchangers, which are equipped with a rotor 36 and 52, the heat transport from the flue gas area to the supply air or from the first to the second Take over the area of the respective heat exchanger 30 and 50, respectively.
  • FIG. 2 schematically in the form of the disc-shaped rotor 100, whose diameter may be 20 m and more.
  • the volume of the disc-shaped rotor 100 is bounded by a cylindrical outer wall 102 and divided into a plurality of chambers 104, 105, 106, 107, 108, 109 with a substantially trapezoidal plan.
  • the division takes place on the one hand by means of a plurality of radially extending partitions 110, 112 and on the other by cylinder walls 114, 115, 116, 117, 118, 119 formed concentrically with the outer wall.
  • the chambers 104, 105, 106, 107, 108, 109 can be equipped with replaceable, size-adapted heat exchanger elements 130, which are formed from honeycomb blocks according to the invention.
  • Such honeycomb blocks or heat exchanger elements are interspersed with a plurality of flow channels which extend parallel to the axial direction of the rotor 100.
  • FIG. 3 shows a honeycomb block 150 according to the invention with a plurality of parallel flow channels 152, which are separated from each other by flow channel walls 154.
  • the cross-sectional area of the flow channels 152 is hexagonal. At a flow channel wall thickness of 1.2 mm results in a distance of the opposing flow channel walls of 14.3 mm (expansion of the channel walls in each case about 7.2 mm), a free cross section for the passage of gases through the honeycomb block 150 of about. 83% based on the base area of the honeycomb block 150.
  • the specific surface area is about 150 m 2 / m 3 .
  • Another embodiment with a footprint of 525 mm x 510 mm at a height of 250 mm has a weight of about 34 kg (Inoflon 230 PTFE virginal agglomerated).
  • a filler in the form of a graphite- or carbon-based heat-conducting pigment as part of a compounding added can be.
  • the resulting in the compounding and then agglomerated particles have a lower bulk density than the agglomerated virgin PTFE. Because of this, weights of about 11 kg and about 28 kg are then obtained in the honeycomb blocks in the above sizes.
  • the heat exchanger elements are often not manufactured in one piece, but it is depending on the required size several, for example two or four, cuboid honeycomb blocks connected to each other, in particular welded together, and then the heat exchanger elements are produced by cutting into the required wedge shape.
  • a honeycomb body 200 is shown which was obtained by welding four honeycomb blocks 202, 204, 206 and 208, wherein PFA foils (eg from PFA 6515NZ, Film thickness 50 ⁇ m, manufacturer Novoflon principless GmbH, Siegsdorf) were used in order to achieve a secure and mechanically loadable connection of the honeycomb blocks with each other.
  • PFA foils eg from PFA 6515NZ, Film thickness 50 ⁇ m, manufacturer Novoflon architectures GmbH, Siegsdorf
  • honeycomb blocks 202, 204, 206 and 208 with the dimensions 440 mm x 450 mm honeycomb body 200 with the dimensions 870 mm x 880 mm can be achieved.
  • honeycomb blocks 202, 204, 206 and 208 of the size 510 mm x 525 mm we obtain in this way honeycomb body 200 with the dimensions 1020 mm x 1030 mm.
  • FIG. 5 schematically shows the cutting of a cuboid honeycomb block or honeycomb body 250 to a heat exchanger element 252 with a trapezoidal base surface, as typically in the associated with the FIG. 1 described rotors 30, 50 or in which in connection with the FIG. 2 described rotor 100 is used as a heat exchanger element 130 or used there in the rotor chambers and for cleaning inline there remains or for off-line cleaning can be replaced again.
  • honeycomb block parts separated at the time of cutting can be further used and connected with further honeycomb blocks to heat exchanger elements, e.g. stick or weld.
  • the heat exchanger elements must be regularly cleaned due to the entry of corrosive gases and ash particles through the flue gas - even in its treated, dedusted form, so that the simple and safe handling of these elements on the one hand, but also the simple cleaning of the honeycomb on the other hand is of great importance.
  • the heat resistance of the PTFE material is also important in view of the temperatures of the flue gases occurring at the heat exchangers, for example about 250 ° C.
  • the parameters of the heat capacity and the thermal conductivity of the heat storage and transfer media used are of crucial importance.
  • the present invention also addresses these issues by selecting the plastic materials and optionally the fillers for making the heat exchanger elements or the honeycomb blocks made for making them.
  • honeycomb blocks are similar to those described in the DE 195 12 351 C1 be recommended for the second variant of the production of honeycomb blocks.
  • samples having the dimensions 1 mm ⁇ 5 mm in cross-section and a length of 60 mm were taken from the honeycomb blocks and subjected to the test method according to ISO 12086-2.
  • the free clamping length during the test was 23 mm.
  • the surface roughness values Ra and Rz were determined according to DIN EN ISO 1302 on wall surfaces of the obtained honeycomb blocks in the longitudinal direction of the flow channels.
  • a non-agglomerated virginal PTFE eg Inoflon 640
  • a filler 3% by weight
  • a compound granular granules
  • the non-free-flowing compound is subjected to granulation for producing agglomerated particles.
  • the particle size D 50 of the agglomerates achieved in this case can be, for example, in the range from about 1 to about 3 mm. Due to the thus formed agglomerates, which have a lower bulk density than the agglomerated virgin PTFE, results in a lower filling weight of the mold and consequently a lower specific gravity of the honeycomb blocks of about 300 kg / m 3 , although the agglomerate particles during pressing (pressing pressure of for example about 120 bar) disintegrate. This sintered material will also be referred to below as PTFE (black).
  • the heat exchanger elements according to the invention based on the material PTFE (white) or PTFE (black), can be compared to the use of heat storage and transmission media made of steel or enamelled steel in the so-called cold end layer achieve heat capacities that are more than twice as large at the same time significantly reduced specific weight, which is reflected not only in the handling of the media themselves, but also in the maintenance of the heat exchanger overall in economic benefits.
  • the plastic material used is an agglomerated virgin PTFE (Inoflon 230).
  • FIG. 6A shows two material samples in different magnification in comparison, in the case of FIG. 6A the material sample based on a mixture of Inoflon 510 (presintered PTFE) with a particle size D 50 of about 400 microns and a share of 3 wt .-% of a sauleitpigments (Timrex C-therm TM002) with a particle size D 50 in the range ca 38 ⁇ m was produced while in the case of FIG. 6B a material sample composed according to the invention based on a mixture of virgin non-agglomerated PTFE (Inoflon 640) having a primary particle size D 50 of about 25 ⁇ m and also 3% by weight of the same heat-conducting pigment was obtained.
  • a hollow cylindrical specimen having an outer diameter of 75 mm and an inner diameter of 40 mm was pressed at a pressure of about 250 bar, then sintered at a temperature of about 380 ° C for 240 min. Cooling from about 380 ° C to room temperature was carried out at a cooling rate of about 1 ° C / min, according to the specifications of the test standard ASTM D 4894.
  • the mechanical properties of the sample based on PTFE regrind are so insufficient that no heat exchanger elements that can be used in the long term during operation of a rotor can be produced.
  • This is of particular importance because, as such, the PTFE materials would allow very long service life of the heat exchanger elements due to their chemical inertness.
  • these extremely long service lives for example 15 years or more, can be guaranteed with the honeycomb blocks according to the invention or the heat exchanger elements produced therefrom.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
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Claims (15)

  1. Bloc en nid d'abeilles (150), en particulier pour la fabrication d'éléments échangeurs de chaleur pour des épurateurs de gaz de fumée de centrales électriques, dans lequel le bloc en nid d'abeilles (150) comprend un corps fabriqué d'un seul tenant en un matériau plastique ayant une multitude de canaux d'écoulement (152) disposés parallèlement les uns aux autres, qui sont séparés les uns des autres par le biais de parois de canaux, caractérisé en ce que le matériau plastique comprend un plastique qui contient du polytétrafluoroéthylène (PTFE) virginal en une proportion d'environ 80 % en poids ou plus et le cas échéant un polymère haute performance différent du PTFE en une proportion d'environ 20 % en poids ou moins.
  2. Bloc en nid d'abeilles (150) selon la revendication 1, caractérisé en ce que le PTFE virginal présente une proportion de co-monomère d'environ 1 % en poids ou moins, de préférence d'environ 0,1 % en poids ou moins.
  3. Bloc en nid d'abeilles (150) selon la revendication 1 ou 2, caractérisé en ce que le PTFE virginal et le cas échéant le polymère haute performance différent du PTFE présentent une taille moyenne de particules primaires D50 d'environ 10 µm à environ 200 µm, de préférence d'environ 10 µm à environ 100 µm.
  4. Bloc en nid d'abeilles (150) selon l'une des revendications 1 à 3, caractérisé en ce que la valeur moyenne de rugosité Ra des surfaces du bloc en nid d'abeilles, mesurée dans le sens longitudinal des canaux du bloc en nid d'abeilles, est d'environ 10 µm ou moins, en particulier de 5 µm ou moins.
  5. Bloc en nid d'abeilles (150) selon l'une des revendications 1 à 4, caractérisé en ce que la profondeur de rugosité Rz des surfaces du bloc en nid d'abeilles, mesurée dans le sens longitudinal des canaux d'écoulement du bloc en nid d'abeilles, est d'environ 50 µm ou moins, en particulier d'environ 40 µm ou moins, de préférence d'environ 30 µm ou moins, plus préférentiellement d'environ 20 µm ou moins.
  6. Bloc en nid d'abeilles (150) selon l'une des revendications 1 à 5, caractérisé en ce que la résistance à l'arrachage du matériau plastique du bloc en nid d'abeilles, mesurée d'après la norme ISO 12086-2 sur une éprouvette en forme de bande ayant une section transversale de 1 x 5 mm2, est d'environ 10 N/mm2 ou plus, de préférence d'environ 15 N/mm2 ou plus, plus préférentiellement d'environ 25 N/mm2 ou plus, néanmoins de manière préférée d'environ 35 N/mm2 ou plus.
  7. Bloc en nid d'abeilles (150) selon l'une des revendications 1 à 6, caractérisé en ce que l'allongement à rupture du matériau plastique du bloc en nid d'abeilles (150), mesuré d'après la norme ISO 12086-2 sur une éprouvette en forme de bande ayant une section transversale de 1 x 5 mm2, est d'environ 80 % ou plus, en particulier d'environ 100 % ou plus, plus préférentiellement d'environ 150 % ou plus, de manière la mieux préférée d'environ 200 % ou plus.
  8. Bloc en nid d'abeilles (150) selon l'une des revendications 1 à 7, caractérisé en ce que le matériau plastique comprend une matière de charge non métallique et/ou une matière de charge métallique, dans lequel la taille de particules D50 de chaque matière de charge est de préférence d'environ 100 µm ou moins, dans lequel la matière de charge non métallique est présente optionnellement en une proportion pouvant aller jusqu'à environ 80 % en poids, de préférence jusqu'à environ 40 % en poids, de manière mieux préférée environ 35 % en poids ou moins dans le matériau plastique, et/ou la matière de charge métallique est contenue en une proportion d'environ 90 % en poids ou moins, de préférence environ 60 % en poids ou moins dans le matériau plastique.
  9. Bloc en nid d'abeilles (150) selon la revendication 8, caractérisé en ce que la proportion volumique citée des matières de charge non métallique et métallique est d'environ 90 % en volume ou moins, de préférence d'environ 50 % en volume ou moins, de manière mieux préférée d'environ 40 % en volume ou moins.
  10. Bloc en nid d'abeilles (150) selon l'une des revendications 1 à 9, caractérisé en ce que le matériau plastique du bloc en nid d'abeilles (150) présente une conductivité thermique d'environ 0,3 W/(m·K) ou plus.
  11. Bloc en nid d'abeilles (150) selon l'une des revendications 1 à 10, caractérisé en ce que le matériau plastique du bloc en nid d'abeilles (150) présente une capacité calorifique d'environ 0,9 J/(g·K) ou plus).
  12. Bloc en nid d'abeilles (150) selon l'une des revendications 1 à 11, caractérisé en ce que les parois des canaux d'écoulement du bloc en nid d'abeilles (150) présentent une épaisseur d'environ 0,8 mm jusqu'à environ 2 mm, de préférence jusqu'à environ 1,6 mm.
  13. Élément échangeur de chaleur (252), fabriqué en utilisant deux blocs en nid d'abeilles ou plus selon les revendications 1 à 12.
  14. Élément échangeur de chaleur (252) selon la revendication 13, caractérisé en ce que deux blocs en nid d'abeilles ou plus sont disposés l'un derrière l'autre dans le sens longitudinal des canaux d'écoulement ou orientés parallèlement les uns par rapport aux autres avec les canaux d'écoulement dans l'élément échangeur de chaleur.
  15. Élément échangeur de chaleur (252) selon la revendication 13 ou 14, caractérisé en ce que l'élément échangeur de chaleur est conçu pour être perpendiculaire dans un plan au sens longitudinal des canaux d'écoulement en forme de coin.
EP15780777.7A 2014-09-26 2015-09-23 Bloc en nid d'abeilles et éléments échangeurs de chaleur fabriqués à partir de celui-ci, notamment pour épurateurs de gaz de fumée de centrales électriques Active EP3198214B1 (fr)

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PL15780777T PL3198214T3 (pl) 2014-09-26 2015-09-23 Blok komórkowy i wytworzone z niego elementy wymiennika ciepła, zwłaszcza dla instalacji do oczyszczania spalin z elektrowni

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DE102014114052.4A DE102014114052A1 (de) 2014-09-26 2014-09-26 Wabenblock und hieraus hergestellte Wärmetauscherelemente, insbesondere für Rauchgasreinigungsanlagen von Kraftwerken
PCT/EP2015/071854 WO2016046257A1 (fr) 2014-09-26 2015-09-23 Bloc en nid d'abeilles et éléments échangeurs de chaleur fabriqués à partir de celui-ci, notamment pour épurateurs de gaz de fumée de centrales électriques

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CN (1) CN106716038A (fr)
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PL (1) PL3198214T3 (fr)
TR (1) TR201903555T4 (fr)
WO (1) WO2016046257A1 (fr)

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DE102016102506A1 (de) * 2015-12-22 2017-06-22 Elringklinger Ag Packung und Kolonne umfassend eine oder mehrere Packungen
CN109404936A (zh) * 2018-10-26 2019-03-01 青岛福轮科技有限公司 一种烟气处理系统及处理方法

Citations (2)

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DE19512351C1 (de) * 1995-04-01 1996-11-14 Poehlmann Klaus Ernst Wabenblock aus wärmebeständigem Speichermaterial für Wärmetauscher
EP2241597A1 (fr) * 2009-04-17 2010-10-20 ElringKlinger AG Composé de polymère ainsi que composant fabriqué en utilisant le composé

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CH583584A5 (fr) * 1972-10-18 1977-01-14 Regehr Ulrich
DE8419655U1 (de) 1984-06-30 1984-09-27 Balcke-Dürr AG, 4030 Ratingen Regenerativ-waermeaustauscher
DE102004023027A1 (de) * 2004-05-06 2005-12-08 Babcock Borsig Service Gmbh Verfahren zum Korrosionsschutz eines Wärmetauscheteils und Wärmetauscherteil
JP4533115B2 (ja) * 2004-12-03 2010-09-01 三井・デュポンフロロケミカル株式会社 フッ素樹脂成形方法及びフッ素樹脂成形品
CN104654864A (zh) * 2013-11-17 2015-05-27 成都奥能普科技有限公司 一种用于化学蓄热的蜂窝块
CN104654872A (zh) * 2013-11-17 2015-05-27 成都奥能普科技有限公司 一种用于高温热能的蜂窝块及其制造方法

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Publication number Priority date Publication date Assignee Title
DE19512351C1 (de) * 1995-04-01 1996-11-14 Poehlmann Klaus Ernst Wabenblock aus wärmebeständigem Speichermaterial für Wärmetauscher
EP2241597A1 (fr) * 2009-04-17 2010-10-20 ElringKlinger AG Composé de polymère ainsi que composant fabriqué en utilisant le composé

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WO2016046257A1 (fr) 2016-03-31
DE102014114052A1 (de) 2016-03-31
TR201903555T4 (tr) 2019-04-22
CN106716038A (zh) 2017-05-24
PL3198214T3 (pl) 2019-06-28
EP3198214A1 (fr) 2017-08-02

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