EP0877222A2 - Anlage zum Druckspritzen von Fluiden in einem Plattenwärmetauscher und Verfahren zur Reinigung dieser Druckspritzanlage - Google Patents

Anlage zum Druckspritzen von Fluiden in einem Plattenwärmetauscher und Verfahren zur Reinigung dieser Druckspritzanlage Download PDF

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Publication number
EP0877222A2
EP0877222A2 EP98400981A EP98400981A EP0877222A2 EP 0877222 A2 EP0877222 A2 EP 0877222A2 EP 98400981 A EP98400981 A EP 98400981A EP 98400981 A EP98400981 A EP 98400981A EP 0877222 A2 EP0877222 A2 EP 0877222A2
Authority
EP
European Patent Office
Prior art keywords
fluid
pipe
injection
hand
plates
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
Application number
EP98400981A
Other languages
English (en)
French (fr)
Other versions
EP0877222B1 (de
EP0877222A3 (de
Inventor
Dominique Sabin
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.)
Alfa Laval Packinox SAS
Original Assignee
Packinox SA
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 Packinox SA filed Critical Packinox SA
Publication of EP0877222A2 publication Critical patent/EP0877222A2/de
Publication of EP0877222A3 publication Critical patent/EP0877222A3/de
Application granted granted Critical
Publication of EP0877222B1 publication Critical patent/EP0877222B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • 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
    • F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F19/00—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers
    • F28F19/01—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers by using means for separating solid materials from heat-exchange fluids, e.g. filters

Definitions

  • the subject of the present invention is a device for injecting fluids under pressure into a plate heat exchanger and a method of cleaning of such an injection device.
  • Plate heat exchangers are generally formed by a sealed enclosure and by a bundle of plates arranged in said enclosure waterproof and leaving a free space with it.
  • the plate bundle is made up of a stack of plates parallel to each other and sparing between them circulation circuits of independent fluids.
  • the plates made of thin sheets the more often made of stainless steel or any other material sufficiently ductile, have edges on the surface smooth and a central part provided with corrugations by which they are in contact with each other others and by which they delimit channels forming fluid circulation circuits independent from one end to the other of the exchanger thermal.
  • This type of beam heat exchanger plates works with various fluids, in single or in double phase.
  • the load to be heated is introduced into the dual phase exchanger, it an intimate mixture of liquid and gas to ensure regular distribution of mix in the entire bundle of plates of the heat exchanger.
  • This injection device consists of a or several pipes extending over the entire width of the bundle of plates and provided with a first open end connected to means for supplying fluid under pressure and a second closed end.
  • the tubing is usually placed at the lower part of the plate bundle and its axis is perpendicular to the channels of said plate bundle.
  • the tubing includes calibrated orifices for spraying the liquid into the plate bundle channels along generators and extending over the entire length of the tubing.
  • the pressurized liquid enters the tubing at one end and is sprayed upwards through the channels of the plate bundle.
  • This pressurized liquid is then taken in charge by gas flowing at high speed at the entry of the plate bundle, mixes intimately to him and flows through the mixed plate bundle gas audit.
  • the mixed phase thus created is distributed advantageously across the width of the channels and is then driven by the gas to the top of the bundle of plates.
  • This type of injection device fills perfectly the main function for which it has designed to ensure an intimate blend between the mixture and gas and therefore create the conditions for a homogeneous and regular distribution of the double phase as soon as it enters the beam of plates.
  • a major drawback is in that the calibrated orifices of the pipes injection may become partially blocked or totally due to the presence in the liquid of particles or debris for example metallic, and this despite the presence of filters inside the supply pipe for said liquid.
  • the injection pipes must therefore be able to be cleaned regularly and for this the whole installation is stopped to allow remove these injection pipes and proceed to cleaning them.
  • Disassembly and cleaning operations as well as reassembly of the injection pipes require an average of one week off the installation.
  • the object of the invention is to avoid these disadvantages while keeping to the device injection efficiency.
  • the subject of the invention is also a method of cleaning such an injection device pressurized fluids, characterized in that it consists, during the operation of the heat exchanger plates, to cut the arrival of the second fluid in sealing the supply piping of this second fluid, open the drain piping and do pass the first fluid through the injection tubing opposite to the direction of circulation of the second fluid to take off the particles deposited on the organ of filtration and evacuate them through said piping evacuation.
  • FIGs. 1 and 2 we have represented schematically only part of an exchanger thermal which consists of a bundle of plates 1 arranged inside a sealed enclosure 2.
  • the beam of plates 1 is formed of a multitude of plates, arranged contiguously and parallel to each other other.
  • the bundle of plates 1 comprises, at its lower end, an outlet manifold 11 of a heat transfer fluid, connected, on the one hand, to one of the circuit of said bundle of plates 1 and, on the other hand, to a pipe 12 for discharging said heat transfer fluid.
  • This heat transfer fluid is introduced into the corresponding circuit of the plate bundle 1 by the upper end of said bundle of plates.
  • the fluid to be heated which in the case present consists of a mixture of a first fluid formed by a gas and by a second fluid formed by a liquid, is introduced by the end bottom of plate bundle 1.
  • This fluid to be heated circulates in the other plate bundle circuit 1 and against the current of the coolant.
  • the sealed enclosure 2 is connected to a pipe 14 for introducing the first fluid, i.e. gas in the circuit corresponding to the bundle of plates, as shown in Fig. 2.
  • This first fluid therefore circulates a inside the channels of the corresponding circuit of the bundle of plates 1 and inside the space free formed between said bundle of plates 1 and the waterproof enclosure 2.
  • the heat exchanger includes a device 20 for injecting the second fluid, i.e. liquid in the channels of the circuit corresponding.
  • the injection device 20 of the second fluid constituted by the liquid comprises, in the embodiment shown in Figs. 1 and 2, parallel pipes 21 arranged on one side and on the other side of the collector 11.
  • the tubing 21 has its axis perpendicular to the channels of the corresponding circuit of the plate bundle 1 and extends over the entire width of said beam of plates 1.
  • the tubing 21 has a first closed end 21a and a second open end 21b connected to a second supply pipe 22 fluid provided with means 23 for sealing and isolating constituted for example by a valve.
  • the tubing 21 is also connected to a pipework 24 for removing particles or debris and provided with a means 25 for sealing or isolating constituted for example by a valve.
  • the piping 22 is connected to means supply of the second fluid under pressure, not shown, and the discharge pipe 24 is of preferably located in the axis of the tubing 21.
  • This tubing 21 has orifices 26 calibrated spraying of the second fluid under pressure in the channels of the corresponding circuit of the bundle of plates 1, distributed along generators and over the entire length of said tube 21.
  • the pipe 21 includes a designated filter member as a whole by the reference 30 and arranged in downstream of the connection of pipes 22 and 24 on said tubing 21 with respect to the direction of circulation of the second fluid in said tubing 21.
  • the filter member 30 has the form of a pocket whose opening is directed upstream of the tubing 21 for injecting the second fluid.
  • the pocket of the filter member 30 is shaped conical.
  • the filter member 30 is flat and extends perpendicular to the axis of tubing 21 injection.
  • the filter member 30 is formed, of a part, by a rigid support 31 provided with orifices 32 and fixed, for example by welding, to the internal wall of the tubing 21 and, on the other hand, by a filter 33 to fine mesh applied against the face of the rigid support 31 which runs against the direction of movement of the second fluid in the injection pipe 21.
  • the thickness of the rigid support 21 is sufficient to withstand the pressure of the second fluid, even if the fine mesh filter 33 is completely blocked.
  • the mesh of the filter 33 is approximately 500 to 800 microns.
  • This fine mesh filter 33 is mounted removably on the support 31 by means of members fixing 34 constituted for example by screws.
  • the filtration member 30 is formed only by the rigid support 31 provided orifices 32.
  • the piping outlet 24 is closed by valve 25 and the second fluid constituted by the liquid arrives by the supply piping 22, passes through the valve 23 which is in the open position and opens into the injection pipe 21.
  • the second pressurized fluid is therefore sprayed up the bundle of plates 1 to through all of the calibrated orifices 26.
  • This second pressurized fluid is then supported by the first fluid flowing to high speed at the entry of the plate bundle 1, intimately mixes with it and circulates in the canals of the corresponding circuit of the bundle of plates 1, mixed intimately to the first fluid.
  • the mixed phase thus created is distributed advantageously over the entire width of these channels and is then dragged to the top of the beam plates 1.
  • the first fluid consisting of the gas which is at high pressure in the sealed enclosure 2 enters the pipes 21 through the orifices 26 and exerts pressure inside these pipes 21 and passes through the holes 32 of the rigid supports 31 and opens the fine mesh filters 33.
  • Particles or debris accumulated at inside the tubing 21 and agglutinated against fine mesh filters 33 are immediately removed by the pipes 24 for evacuating these particles or this debris.
  • Each discharge pipe 24 can be connected to a particle recovery tank or debris.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Cleaning In General (AREA)
EP98400981A 1997-05-09 1998-04-22 Anlage zum Druckspritzen von Fluiden in einem Plattenwärmetauscher und Verfahren zur Reinigung dieser Druckspritzanlage Expired - Lifetime EP0877222B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9705736 1997-05-09
FR9705736A FR2763118B1 (fr) 1997-05-09 1997-05-09 Dispositif d'injection de fluides sous pression dans un echangeur thermique a plaques et procede de nettoyage d'un tel dispositif d'injection

Publications (3)

Publication Number Publication Date
EP0877222A2 true EP0877222A2 (de) 1998-11-11
EP0877222A3 EP0877222A3 (de) 2000-02-23
EP0877222B1 EP0877222B1 (de) 2001-11-21

Family

ID=9506744

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98400981A Expired - Lifetime EP0877222B1 (de) 1997-05-09 1998-04-22 Anlage zum Druckspritzen von Fluiden in einem Plattenwärmetauscher und Verfahren zur Reinigung dieser Druckspritzanlage

Country Status (6)

Country Link
US (1) US6196301B1 (de)
EP (1) EP0877222B1 (de)
JP (1) JP3990030B2 (de)
DE (1) DE69803235T2 (de)
ES (1) ES2168727T3 (de)
FR (1) FR2763118B1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6978793B1 (en) 2003-05-21 2005-12-27 Phex Llc Portable cleaning apparatus and method for single pass plate and frame heat exchangers
EP2255862A1 (de) * 2009-04-28 2010-12-01 DEUTZ Aktiengesellschaft Rückhaltevorrichtung
CN103968690A (zh) * 2014-05-23 2014-08-06 山东宏达科技集团有限公司 板片可拆式颗粒物热交换器
CN104713407A (zh) * 2015-03-10 2015-06-17 江苏唯益换热器股份有限公司 一种利用纳米颗粒进行换热器流量的分配方法

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130233350A1 (en) 2012-03-07 2013-09-12 Michael Tomkins Method and system for removing hydrocarbon deposits from heat exchanger tube bundles
DE102019121342B4 (de) * 2018-08-15 2021-03-18 Mann+Hummel Gmbh Filterelement für den Einsatz als Partikelfilter in einem Kühlkreislauf eines elektrochemischen Energiewandlers und Verwendung des Filterelements in einer Anordnung mit einem elektrochemischen Energiewandler und einem Kühlkreislauf

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1536415A (en) * 1924-06-20 1925-05-05 Luciean G Beck Self-cleaning tank valve
GB1207919A (en) * 1968-10-29 1970-10-07 Apv Co Ltd Improvements in or relating to plate heat exchangers
US3941697A (en) * 1974-12-30 1976-03-02 Johnson Louis B Automotive cooling system filter assembly
JPS51114758A (en) * 1975-04-01 1976-10-08 Toshiba Corp Heat exchanger for making cooling water out of sea water
IT1108455B (it) * 1978-10-13 1985-12-09 Galletti Gi Pi Snc Filtro da usarsi negli apparecchi per la depurazione di liquidi
US4413675A (en) * 1981-08-10 1983-11-08 Gano Lloyd D Cooling system protective device
US4612116A (en) * 1985-03-27 1986-09-16 French Systems, Inc. Backwashable filtering apparatus and novel filter element therefor
US5000821A (en) * 1988-05-25 1991-03-19 Resources Conservation Company Apparatus for controlling solid particle flow in an evaporator
JPH0820144B2 (ja) * 1991-05-23 1996-03-04 株式会社荏原製作所 冷凍機用凝縮器の運転方法
FR2697906B1 (fr) * 1992-11-10 1995-01-27 Packinox Sa Faisceau de plaques pour échangeur thermique.
FR2716961B1 (fr) * 1994-03-04 1996-06-14 Packinox Sa Dispositif d'injection d'un fluide sous pression dans un faisceau à plaques d'un échangeur thermique.

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6978793B1 (en) 2003-05-21 2005-12-27 Phex Llc Portable cleaning apparatus and method for single pass plate and frame heat exchangers
EP2255862A1 (de) * 2009-04-28 2010-12-01 DEUTZ Aktiengesellschaft Rückhaltevorrichtung
CN103968690A (zh) * 2014-05-23 2014-08-06 山东宏达科技集团有限公司 板片可拆式颗粒物热交换器
CN103968690B (zh) * 2014-05-23 2015-11-11 山东宏达科技集团有限公司 板片可拆式颗粒物热交换器
CN104713407A (zh) * 2015-03-10 2015-06-17 江苏唯益换热器股份有限公司 一种利用纳米颗粒进行换热器流量的分配方法

Also Published As

Publication number Publication date
DE69803235D1 (de) 2002-02-21
EP0877222B1 (de) 2001-11-21
ES2168727T3 (es) 2002-06-16
FR2763118A1 (fr) 1998-11-13
DE69803235T2 (de) 2002-08-22
FR2763118B1 (fr) 1999-08-06
EP0877222A3 (de) 2000-02-23
US6196301B1 (en) 2001-03-06
JPH1151589A (ja) 1999-02-26
JP3990030B2 (ja) 2007-10-10

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