EP4136396B1 - Querstrom-rohrbündelwärmetauscher - Google Patents

Querstrom-rohrbündelwärmetauscher Download PDF

Info

Publication number
EP4136396B1
EP4136396B1 EP20829310.0A EP20829310A EP4136396B1 EP 4136396 B1 EP4136396 B1 EP 4136396B1 EP 20829310 A EP20829310 A EP 20829310A EP 4136396 B1 EP4136396 B1 EP 4136396B1
Authority
EP
European Patent Office
Prior art keywords
deflectors
tubes
heat exchanger
tube
shell
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.)
Active
Application number
EP20829310.0A
Other languages
English (en)
French (fr)
Other versions
EP4136396C0 (de
EP4136396A1 (de
Inventor
Jirí KLEMES
Petar Sabev Varbanov
Milan Hemzal
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Vysoke Uceni Technicke V Brne
Original Assignee
Vysoke Uceni Technicke V Brne
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Vysoke Uceni Technicke V Brne filed Critical Vysoke Uceni Technicke V Brne
Publication of EP4136396A1 publication Critical patent/EP4136396A1/de
Application granted granted Critical
Publication of EP4136396B1 publication Critical patent/EP4136396B1/de
Publication of EP4136396C0 publication Critical patent/EP4136396C0/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/16—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation
    • F28D7/1607—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation with particular pattern of flow of the heat exchange media, e.g. change of flow direction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D21/0001—Recuperative heat exchangers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/007—Auxiliary supports for elements
    • F28F9/013—Auxiliary supports for elements for tubes or tube-assemblies
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/007—Auxiliary supports for elements
    • F28F9/013—Auxiliary supports for elements for tubes or tube-assemblies
    • F28F9/0132—Auxiliary supports for elements for tubes or tube-assemblies formed by slats, tie-rods, articulated or expandable rods
    • 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
    • F28F9/0275—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 branch pipes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/22—Arrangements for directing heat-exchange media into successive compartments, e.g. arrangements of guide plates
    • 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
    • F28F9/24—Arrangements for promoting turbulent flow of heat-exchange media, e.g. by plates
    • 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
    • F28D7/0066—Multi-circuit heat-exchangers, e.g. integrating different heat exchange sections in the same unit or heat-exchangers for more than two fluids
    • F28D7/0075—Multi-circuit heat-exchangers, e.g. integrating different heat exchange sections in the same unit or heat-exchangers for more than two fluids with particular circuits for the same heat exchange medium, e.g. with the same heat exchange medium flowing through sections having different heat exchange capacities or for heating or cooling the same heat exchange medium at different temperatures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F19/00—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/22—Arrangements for directing heat-exchange media into successive compartments, e.g. arrangements of guide plates
    • F28F2009/222—Particular guide plates, baffles or deflectors, e.g. having particular orientation relative to an elongated casing or conduit
    • F28F2009/228—Oblique partitions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2250/00—Arrangements for modifying the flow of the heat exchange media, e.g. flow guiding means; Particular flow patterns
    • F28F2250/10—Particular pattern of flow of the heat exchange media
    • F28F2250/106—Particular pattern of flow of the heat exchange media with cross flow
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2265/00—Safety or protection arrangements; Arrangements for preventing malfunction
    • F28F2265/28—Safety or protection arrangements; Arrangements for preventing malfunction for preventing noise
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2265/00—Safety or protection arrangements; Arrangements for preventing malfunction
    • F28F2265/30—Safety or protection arrangements; Arrangements for preventing malfunction for preventing vibrations

Definitions

  • the invention relates to a tubular shell heat exchanger for use in the energy industry, in oil refining, in chemical engineering and in other industry branches where there is a need for heat exchange and/or waste heat treatment.
  • Tubular shell heat exchangers are currently the most common type of heat exchangers and they are widely used especially in the oil industry, chemical industry and/or energy industry. At present, there is an increasing need to use low-potential heat, which has not been used yet, because it has low rentability or heat exchangers with the necessary parameters were not available. The difficult conditions of such industry branches increases demands on heat exchangers, especially for performance, wear resistance, clogging resistance and simplification of maintenance, increasing service life and efficiency.
  • connection of the heat exchanger to a system may be the opposite of the previous case, whereas the temperature difference between the two media at inlet is the largest and during passing through the heat exchanger is this difference significantly reduced.
  • Such an arrangement is called parallel-flow.
  • a heat exchanger according to the preamble of claim which consists of plurality of heat transfer tubes passing through multiple baffle plates having a circular shape which support the middle portions of the heat transfer tubes.
  • the baffle plate consists of both a full upper portion with openings for the tubes and an empty lower portion. The orientation of the empty portion is always alternating with each baffle plate and this allows the flow of the heating medium to bend into waves.
  • the full portions of the baffle plates for the heat exchanger are created by bent thin plates which are arranged to form a supporting grid.
  • This construction is intended to prevent vibration of the heat exchanger tubes.
  • the tubes are only held in place by the shape contact in the spaces formed between the thin plates.
  • the disadvantage of the heat exchanger is the complicated design and that the generated flow wave of the heating medium creates vibrations.
  • the aim of the present invention is to provide a tubular shell heat exchanger which overcomes the above mentioned shortcomings.
  • tubular shell heat exchanger with cross flow according to the invention as defined by claim 1, which is characterised by the fact that deflectors on tubes in a lower adjacent row are inclined in the opposite direction to those above them, and they are offset by half of the distance, whereas deflectors are fixed to the tubes by means of fixing sleeves, wherein inlet is divided into branches which entry into the shell is in the position above deflectors arranged on the tube which is closest to the branches and deflectors in the place below each entry of the branch form either an assembly of two deflectors oriented to one side, or there is only one deflector oriented to the opposite side and the height of deflectors is less than the distance of the surfaces of two tubes arranged above each other.
  • the fixing sleeves formed as a U-shaped wire wrapped around tubes, wherein the threaded ends of the fixing sleeve being secured by nuts.
  • the deflector fixed on every second tube in a row perpendicular to the axis of the heat exchanger.
  • FIG. 1 is a schematic view of a tubular shell heat exchanger according to the invention
  • Fig. 2 shows a detail of mounting deflectors on the tube bundle of the heat exchanger of Fig. 1 in a perspective view
  • Fig. 3 shows a detail of mounting deflectors on the tube bundle of the heat exchanger of Fig. 1 in axial view.
  • Fig. 1 is a schematic view of a tubular shell heat exchanger 1, which consists of a shell 12 and a set of connecting tubes 8 through which the heated medium flows, and which are fixed between two tube plates 2, 3, on one side to the inlet tube plate 2 and on the opposite side to the outlet tube plate 3.
  • An inlet 4 of the heat transfer medium i.e. a heating medium
  • An outlet 5 of the heating medium is arranged at the bottom.
  • the supply of heated medium is ensured by an inlet tube 6 arranged in the axis of the shell 12 on the side of the inlet tube plate 2 and its discharge by an outlet tube 7, on the side of the outlet tube plate 3.
  • Heat transfer takes place through a bundle of tubes 8 which are arranged parallel to the axis from the inlet tube plate 2 to the outlet tube plate 3.
  • the inlet 4 of the heating medium in the upper part of the heat exchanger 1 is divided into several branches 11 connected to the shell 12 at several entries spaced apart along the upper length of the heat exchanger's shell 12.
  • branches 11 there are four branches 11, but the number of these branches 11 may vary according to the length of the internal space between the tube plates 2, 3 of the heat exchanger 1 and in particular according to the heat performance requirements.
  • deflectors 9 are fastened to the tubes 8 at regular mutual intervals perpendicular to these tubes 8 by means of fixing sleeves 10.
  • the deflector 9 can be fixed on every second tube 8 in a row, perpendicular to the axis.
  • Deflectors 9 consist of a horizontal fastening strip 13 and an inclined wing 14. It is obvious that the fastening strip 13 serves to be fastened to the lower part of the tubes via fixing sleeves 10.
  • Deflectors 9 are arranged in rows next to each other, on one horizontal row of tubes 8 at a distance X, all of which are inclined in the same direction within such a formation. Deflectors 9 on tubes 8 in the lower adjacent row are again arranged at a distance X, but on the one hand they are inclined in the opposite direction to those above them, and they are also offset by half of the distance X. Below this offset row the arrangement and inclination of deflectors are again the same as in a row above. Branches 11 are joined to the shell 12 in the position above deflectors 9 arranged on the tube 8 which is closest to the entry of the branches 11.
  • Deflectors 9 in the place below each entry form either an assembly of two deflectors 9 oriented to one side, or there is only one deflector 9 oriented to the opposite side. Due to this arrangement receives the flow from each individual entry the desired wavy trajectory, as indicated by the arrow in the example of the first branch 11.
  • the deflector 9 is made of sheet metal with a thickness of 4 to 5 mm.
  • the fastening strip 13 has a width of 50 to 100 mm and there are openings for fixing sleeves 10, which are formed as a U-shaped wire wrapped around tubes 8, the threaded ends of the fixing sleeve 10 being secured with nuts.
  • the height H of the deflector 9 as shown in Fig. 2 is less than the distance h of the surfaces of two tubes 8 arranged above each other, as shown in Fig. 1 , so that the lower edge of the deflector wing 14 does not touch the upper surface of the tube 8 arranged below it.
  • Deflectors 9 are arranged at distances from each other, and the inclination of wings 14 is alternately changed to one side or to the other side. For this purpose, the deflector 9 can be simply turned about 180°. This creates a system of chicanes in the space of the heat exchanger 1, curving the trajectory of the cross-flowing medium, so that an intense turbulent flow is created in the heat exchanger, together with the influence of perpendicular inlet of heating medium into the inner space of heat exchanger 1.
  • the medium moves not only forcibly downwards, but also mainly due to gravity it flows from the top to the bottom, thus the need to equip the interior space with baffles designed to disrupt laminar flow and initiate turbulent flow is eliminated, thereby significantly reducing pressure loss.
  • the advantage of the invention consist in particular in the fact that the deflectors 9 have replaced fixed baffles known from the prior art.
  • the heat exchanger 1 according to the invention does not have the disadvantages of the prior art solutions, such as clogging, creation of dead spots, wear, etc., and the deflectors do not form active obstacles to the flow of the medium. This allows intensive washing of the entire interior of the heat exchanger, so there is no accumulation of dirt and clogging of the heat exchanger on the sides, but especially on the lower inner surface of the shell, because any impurities are continuously washed away by the medium leaving the interior of the heat exchanger and leave freely without the opportunity and reason to accumulate.
  • the advantages of the present invention in a comparison with the prior art heat exchangers are as follows: Unlike baffles known from the prior art, deflectors 9 do not increase the pressure loss and do not require increased pump performance. Changing the flow direction of the heating medium from horizontal to vertical and from the top to the bottom means significant energy savings, which in combination with the effect of creating a turbulent flow reduces the energy consumption for pumping approximatelly by 30 %.
  • the homogeneous temperature field inside the heat exchanger shell results in an increase in the temperature difference between the heating and the heated medium from the inlet of the heated medium, which cannot be achieved with a conventional counter-flow arrangement. Although the temperature difference between the two media decreases through the heat exchanger, the integral of the temperature difference is still significantly higher than in the common cases of existing counter-flow and parallel-flow arrangements and the heat transfer coefficient is therefore improved compared to conventional solutions.
  • Vibrations of the tube bundle are limited because the nature of the medium flow on the side of the shell passing through the tube bundle can significantly affect the fluid-induced vibrations of the tube bundle as well as the vibration resistance of the heat exchanger and thus ensure safe operation. It is significant to reduce the possibility of dirt accumulation, especially by removing the baffles and replacing them with deflectors 9.
  • the built-in and functioning heat exchanger can be quickly adjusted to optimum performance, which is enabled by the modular system of mounted deflectors 9 by a relatively simple changing of their number. This ensures the most efficient operation of the system without the need to dismantle the entire heat exchanger. The changing is relatively very simple and fast and can be realised during system temporary shutdown for other reasons.
  • heat exchanger 1 has significantly lower susceptibility to clogging and significant self-cleaning ability.
  • the exchanger can be fine-tuned to optimum performance by simply adjusting the tube bundle to a greater or lesser number of deflectors 9, in terms of their shape, angle and length.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid Mechanics (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Claims (3)

  1. Querstrom-Rohrbündelwärmetauscher (1), der einen Mantel (12) mit einem System von Rohren (8) beinhaltet, welche paralel mit der Achse zwischen zwei seitlichen Rohrwandungen (2,3) befestigt sind, wobei auf dem Mantel (12) des Wärmetauschers (1) von oben ein Eitritt (4) des wärmetragenden Mediums angeordnet ist und unten ist ein Austritt (5) des wärmetragenden Mediums versehen und auf Seite der Eintrittsrohrwandung (2) ein Eintrittsrohr (6) für beheitzte Medium ist, und auf Seite der Austrittsrohrwandung (3) ein Austrittsrohr (7) angeordnet ist, wobei zu den Rohren (8) senkrecht zu ihnen in regelmässigen Abständen Deflektoren (9) befestigt sind, wobei die Deflektoren (9) aus einem horizontalen Befestigungsstreifen (13) auf ihren Unterseite und aus einem schrägen Flügel (14) bestehen, der angesichts des Befestigungsstreifens (13) in seiner horizontalen Lage schräg unter einem Winkel α 120 až 140° angeordnet ist, wobei die Deflektoren (9) nebeneinande in Reihen, im Rahmen einer horizontalen Reihe der Rohren (8) in einer Distanz (X) sind, so dass alle im Rahmen von solchel Formation gekippt in demgleichen Sinne sind und die Deflektoren (9) auf den Rohren (8) in der niedrigeren benachbarten Reihe wieder in einrer Distanz (X) angeordnet sind, wobei unter diesen versetzten Reihe die Anordnung und Kippen von Deflektoren (9) wie in der Reihe oben ist, dadurch gekennzeichnet, dass in der niedrigeren Reihe die Deflektoren (9) auf den Rohren (8) in dem umgekehrten Sinne als die oben ihnen gekippt sind, und auch um eine Hälfte der Distanz (X) versetzt sind, wobei die Deflektoren (9) zu den Rohren (8) durch Bügelschellen (10) befestigt sind, wobei der Eitritt (4) verzweigt ist und einzelne Zweigen (11) münden in den Mantel (12) oben von Deflektoren (9), die auf dem Rohr (8) angeordnet sind, die am nächsten zu diesen Einmündungen ist und die Deflektoren (9 an der Stelle unter jedem Einmündung entweder ein System von zwei Deflektoren (9) orientiert zu einer Seite bilden, oder dort nur ein Deflektor (9) orientiert auf die Gegenseite angeordnet ist und die Höhe (H) des Deflektors (9) kleiner als die Distanz (h) von Oberflächen zwei übereinander angeordneten benachbarten Rohren (8) ist.
  2. Querstrom-Rohrbündelwärmetauscher nach dem anspruch 1, dadurch gekennzeichnet, dass die Bügelschellen (10) als ein Draht in der Form von der umgekehrten Buchstabe U, der um die Rohren (8) obtočeny durchgefuhrt sind, und die Gewindeenden der Bügelschellen (10) mit Muttern versehen sind.
  3. Querstrom-Rohrbündelwärmetauscher nach dem Ansprüchen 1 und 2, dadurch gekennzeichnet, dass der Deflektor (9) auf jedem zweiten Rohr (8) in einer zur Achse des Wärmetauschers (1) senkrechten Reihe befestigt ist.
EP20829310.0A 2020-12-01 2020-12-01 Querstrom-rohrbündelwärmetauscher Active EP4136396B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CZ2020/000052 WO2022117129A1 (en) 2020-12-01 2020-12-01 Tubular shell heat exchanger with cross flow

Publications (3)

Publication Number Publication Date
EP4136396A1 EP4136396A1 (de) 2023-02-22
EP4136396B1 true EP4136396B1 (de) 2024-04-10
EP4136396C0 EP4136396C0 (de) 2024-04-10

Family

ID=74045372

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20829310.0A Active EP4136396B1 (de) 2020-12-01 2020-12-01 Querstrom-rohrbündelwärmetauscher

Country Status (2)

Country Link
EP (1) EP4136396B1 (de)
WO (1) WO2022117129A1 (de)

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE930146C (de) * 1952-02-06 1955-07-11 Atlas Werke Ag Vorrichtung zum Halten von Rohren in Rohrbuendeln von Waermeaustauschern
US3813749A (en) * 1972-11-13 1974-06-04 Westinghouse Electric Corp A tube clamp
US3998268A (en) * 1975-03-04 1976-12-21 Westinghouse Electric Corporation Locking device for staggered fin-tubes
US4204570A (en) * 1978-02-23 1980-05-27 Foster Wheeler Energy Corporation Helical spacer for heat exchanger tube bundle
NL8400139A (nl) * 1984-01-17 1985-08-16 Hoogovens Groep Bv Doorstroomwarmtewisselaar voor gas-gas warmtewisseling.
US5255737A (en) * 1990-07-09 1993-10-26 Phillips Petroleum Company Heat exchanger with flow distribution means
JPH05296680A (ja) * 1992-04-14 1993-11-09 Toshiba Corp 熱交換器の伝熱管支持構造体
US5477846A (en) * 1994-08-17 1995-12-26 Cameron; Gordon M. Furnace-heat exchanger preheating system
JP5964286B2 (ja) * 2013-12-27 2016-08-03 三菱日立パワーシステムズ株式会社 熱交換器
RU2727110C2 (ru) * 2016-04-14 2020-07-20 Линде Акциенгезельшафт Спирально закрученный теплообменник
CN206094996U (zh) 2016-05-30 2017-04-12 江汉大学 一种管壳式换热器
NO344796B1 (en) * 2018-12-14 2020-04-27 Future Tech As Subsea cooler

Also Published As

Publication number Publication date
WO2022117129A1 (en) 2022-06-09
EP4136396C0 (de) 2024-04-10
EP4136396A1 (de) 2023-02-22

Similar Documents

Publication Publication Date Title
KR102887247B1 (ko) 나선 배플형 열교환기
US20110094720A1 (en) Shell-and-tube heat exchanger with helical baffles
EP4136396B1 (de) Querstrom-rohrbündelwärmetauscher
EP3332653A1 (de) Rohrförmiger wärmetauscher
WO2022135623A1 (en) Tubular shell heat exchanger with sheet baffles
CN210602918U (zh) 一种自清洗防垢板式换热器
CN213902032U (zh) 一种列管换热器
CN217520308U (zh) 换热器用管束和换热器
KR100880454B1 (ko) 스파이럴 열교환기
CN104034188B (zh) 换热器及强化换热方法
CN219797992U (zh) 一种改进的高效换热管冷凝器
CN112665421A (zh) 一种高效异形管板换热器
CN116734631A (zh) 多股流管壳式换热器
CN113566618B (zh) 一种节能式轴向变空间烟气冷凝器
CN223965934U (zh) 一种强化传热换热组件
CN215984116U (zh) 异径孔折流板锥纹管换热器
CN220602274U (zh) 支撑型换热器
CN1112564C (zh) 小尺寸热交换器
CN108895864B (zh) 折流板组件和包括此组件的管壳式换热器
CA3141824C (en) Helically baffled heat exchanger
PL244117B1 (pl) Płaszczowo-rurowy wymiennik ciepła z helikoidalnymi przegrodami
CN215337876U (zh) 一种防冲刷腐蚀的管壳式换热器
RU2778804C1 (ru) Устройство для интенсификации теплопередачи и котел, содержащий это устройство
CN223987183U (zh) 一种电加热元件支撑板及电加热器
CN224018884U (zh) 一种换热效率高的换热装置

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: UNKNOWN

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20221118

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
INTG Intention to grant announced

Effective date: 20231012

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602020028898

Country of ref document: DE

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

U01 Request for unitary effect filed

Effective date: 20240416

U07 Unitary effect registered

Designated state(s): AT BE BG DE DK EE FI FR IT LT LU LV MT NL PT SE SI

Effective date: 20240424

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240810

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240410

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240711

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240410

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240410

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240410

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240710

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240810

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240410

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240711

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240410

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240710

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602020028898

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240410

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240410

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240410

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240410

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240410

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240410

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240410

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240410

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20250113

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240410

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

U90 Renewal fees not paid: noting of loss of rights

Free format text: RENEWAL FEE NOT PAID FOR YEAR 05

Effective date: 20250716

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20241201

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20241201

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20241231

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20241201

U93 Unitary patent lapsed

Free format text: RENEWAL FEE NOT PAID

Effective date: 20241231

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20201201