EP1277014A1 - Injecteur de vapeur - Google Patents

Injecteur de vapeur

Info

Publication number
EP1277014A1
EP1277014A1 EP01940343A EP01940343A EP1277014A1 EP 1277014 A1 EP1277014 A1 EP 1277014A1 EP 01940343 A EP01940343 A EP 01940343A EP 01940343 A EP01940343 A EP 01940343A EP 1277014 A1 EP1277014 A1 EP 1277014A1
Authority
EP
European Patent Office
Prior art keywords
steam
water
housing
tube
inlet opening
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.)
Withdrawn
Application number
EP01940343A
Other languages
German (de)
English (en)
Inventor
Rainer Fröb
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.)
Petrick & Wolf Energietechnik GmbH
Original Assignee
Petrick & Wolf Energietechnik GmbH
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 Petrick & Wolf Energietechnik GmbH filed Critical Petrick & Wolf Energietechnik GmbH
Publication of EP1277014A1 publication Critical patent/EP1277014A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20—Mixing gases with liquids
    • B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
    • B01F23/231—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids by bubbling
    • B01F23/23105—Arrangement or manipulation of the gas bubbling devices
    • B01F23/2312—Diffusers
    • B01F23/23123—Diffusers consisting of rigid porous or perforated material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D10/00—District heating systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20—Mixing gases with liquids
    • B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
    • B01F23/231—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids by bubbling
    • B01F23/23105—Arrangement or manipulation of the gas bubbling devices
    • B01F23/2312—Diffusers
    • B01F23/23126—Diffusers characterised by the shape of the diffuser element
    • B01F23/231265—Diffusers characterised by the shape of the diffuser element being tubes, tubular elements, cylindrical elements or set of tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20—Mixing gases with liquids
    • B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
    • B01F23/232—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using flow-mixing means for introducing the gases, e.g. baffles
    • B01F23/2321—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using flow-mixing means for introducing the gases, e.g. baffles by moving liquid and gas in counter current
    • B01F23/23211—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using flow-mixing means for introducing the gases, e.g. baffles by moving liquid and gas in counter current the liquid flowing in a thin film to absorb the gas
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20—Mixing gases with liquids
    • B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
    • B01F23/2366—Parts; Accessories
    • B01F23/2368—Mixing receptacles, e.g. tanks, vessels or reactors, being completely closed, e.g. hermetically closed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20—Mixing gases with liquids
    • B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
    • B01F23/237—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids characterised by the physical or chemical properties of gases or vapours introduced in the liquid media
    • B01F23/2376—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids characterised by the physical or chemical properties of gases or vapours introduced in the liquid media characterised by the gas being introduced
    • B01F23/23767—Introducing steam or damp in liquids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20—Mixing gases with liquids
    • B01F23/29—Mixing systems, i.e. flow charts or diagrams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/30—Injector mixers
    • B01F25/31—Injector mixers in conduits or tubes through which the main component flows
    • B01F25/313—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced in the centre of the conduit
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/90—Heating or cooling systems
    • B01F2035/99—Heating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20—Mixing gases with liquids
    • B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D1/00—Steam central heating systems
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/17—District heating

Definitions

  • the invention relates to a device for injecting steam into flowing water for the purpose of heating the water.
  • the invention relates to such an injector, as used in connection with a method according to German Patent 44 32 464, which discloses a method for heating heating or process water by means of steam from the steam network of a long-distance line, in which the Steam is injected into the water to be heated in the circuit, the amount of steam to be injected into the water being controlled by (outside) temperature-controlled removal of water or condensate into the condensate line of the steam network.
  • the invention relates to such an injector as used in connection with the device for injecting steam into flowing water with the device for injecting steam into flowing water for the purpose of heating the water according to registered German Utility Model No.
  • the invention has for its object to introduce steam in the smallest particles in flowing water and thus to allow a completely silent condensation. It must be ensured that the quantity variability from 0 to 100% is always maintained and that the pressure drop between the steam line and the water to be heated does not exceed system-specific values.
  • a device for injecting steam into flowing water with an essentially closed housing, a mixing space within the housing in which the steam is mixed with the water to be heated, in each case a water inlet opening and a water outlet opening in the housing, the water from the water inlet opening is led via the mixing chamber to the water outlet opening, a steam chamber within the housing, a steam inlet opening in the housing, the steam being conducted from the steam inlet opening into the steam chamber, a partition wall between the steam chamber and the mixing chamber, a large number of pores for passage in the partition wall of the steam are formed in the mixing chamber, the pore sizes being designed so that only the smallest steam particles penetrate the partition, with a suitable choice of the grain size be cooled and condensed immediately upon contact with the water flowing on the wall surface. Noises do not occur during this process.
  • the steam ensures not only the heat transfer but also the static pressure maintenance in the water system, so that no local evaporation of the water can occur there. If the steam flows through the tube, there is a pressure loss that reduces the steam pressure that is available in the water space for maintaining pressure. However, pressure maintenance is necessary because the temperatures of the heated water can usually be above 100 ° C.
  • FIG. 1 shows a system for heating water by means of steam from the steam network of a district heating system, in which an injector according to the invention is installed, and
  • Figure 2 is a partially sectioned side view of a preferred injector according to the invention.
  • FIG. 1 Superheated steam from a steam line 110 of a steam network of a district heating system is supplied to a circuit line for heating water, which is designated as a whole by the reference number 100 and is completely vented, via an injector 402 according to the invention.
  • a shut-off valve 104 On A shut-off valve 104, a manometer 106 and a thermometer 108 are arranged in front of the injector 402 of the steam line 110.
  • a vent valve 114 is arranged on the circuit line.
  • the adjoining line section 118 of the circuit line can be referred to as the flow of the building heating, and a thermostatic switch 120, a sensor 122, a pressure switch 124 and a safety valve 126 are arranged one after the other.
  • the heating water After flowing through the heated heating water through the heat consumers (radiators), which are not shown, the heating water returns via the line section 128 to be referred to as the return line, a manometer 130 and then an emptying valve 132 being arranged on this line section.
  • the cooled heating water is then returned to the injector 402 via a circulation pump 134, a non-return valve 136 and a throttle valve 138.
  • the condensate line 112 branches off between the check valve 136 and the throttle valve 138, via which the condensate is returned to the district heating network. Viewed in the direction of flow of the condensate, the condensate line 112 a shut-off valve 140, a motor-operated temperature controller 142, a flow differential pressure controller 144, a non-return valve 146 and a further shut-off valve 148 are arranged one behind the other.
  • a manometer 150 is located between the check valve 146 and the shut-off valve 148.
  • a heat meter 152 is arranged, which works in a known manner with a sensor 154 or 156 attached to the line section 118 (flow) and 128 (return).
  • Control module designates which the operation of the system depending on the outside temperature, cf. Outside sensor 160, controls.
  • German Patent 44 32 464 Reference is made below to FIG. 2, which shows a preferred embodiment of the injector according to the invention in detail.
  • the injector 402 according to the invention is installed in the heating system in the position shown in FIG. 2, that is to say in the upright position.
  • the injector 402 comprises an essentially cylindrical housing 404 with an upper housing half 406 and a lower housing half 408, both housing halves being flanged together by means of flanges 410, 412.
  • the housing 404 has a substantially cylindrical cavity 414 and, with the exception of the openings described below, is closed on all sides.
  • a water inlet opening 416 is defined, which is connected via the pipe socket 418 to the line section of the circuit line 100 from FIG. 1, which leads to the throttle valve 138.
  • a water outlet opening 420 which is formed radially to the central axis of the housing and is connected via a pipe socket 422 to the line section of the circuit line 100 leading to the vent valve 114 (FIG. 1).
  • the opening 420 is located in the upper region of the housing 404, but is spaced from the upper end of the cavity 414 for the reasons described below.
  • a steam inlet opening 424 is formed at the upper end of the housing 404 and is connected to the steam line 110 via an angled pipe socket 426.
  • a steam pipe section extends downward from the steam inlet opening 424 and ends in a weld-on sleeve 428, which ends at the level of the parting plane between the upper and lower housing halves 406 and 408.
  • a tube 430 is connected tightly to the welding sleeve 428.
  • the cylindrical tube 430 which is open on both sides, runs coaxially to the axis of the cylindrical cavity 414 of the housing 404 and extends to near the lower end of the cavity 414 and has an inside diameter di and an outside diameter d a .
  • the cylindrical tube 430 which is preferably made of ceramic or sintered metal, has a multiplicity of pores 450, which are shown in FIG. 2 as points of the dotted surface.
  • a threaded piece 452 For the tight connection of the tube 430, a threaded piece 452, seals 444, washers 434, a threaded rod 448, which has three welded-on brackets 446 at one end and a thread at the other end, and a hexagon nut 432 are required.
  • the threaded piece 452 is screwed into the welded socket 428.
  • the threaded rod 448 runs coaxially to the axis of the cylindrical cavity 414 of the housing 404, the three claws 446 touching the threaded piece 452, so that the threaded rod 448 is fixed. Between the threaded piece 452 and the cylindrical tube 432 there is a circular seal 444.
  • a vent dome 436 is formed, which is defined by the cavity above the water outlet opening 420.
  • the dome bottom of the vent dome 436 is provided with a steam vent 438.
  • the flow rate of the water to be heated is chosen so large that the temperature at the water outlet clearly falls below the saturation temperature.
  • the injector comprises a central cylindrical space 440, via which the steam enters the housing of the injector, and an annular space surrounding the space 440 442, which is separated from the space 440 by the tube 430 (and its extension leading up to the steam inlet opening 424), the two spaces being connected to one another exclusively via the pores 450.
  • the water circulates with a constant or variable flow from the water inlet opening 416 via the mixing chamber 442 to the water outlet opening 420.
  • the steam enters the steam chamber 440 from the steam inlet opening 424 and passes through the pores 450 into the mixing chamber 442, where it is used Purpose of heating is introduced into the water flowing therein.
  • the outflow of water is regulated by the temperature controller 142 in the condensate line 112, so that no control valve for the amount of steam may be used on the steam side.
  • the two gases can only be separated after the steam has condensed.
  • the air bubbles entering the injector can collect under the vent dome 436 and are discharged outside via the steam vent 438.
  • the kvs value of the tube increases with the increase in steam throughput 430 because more pores are released for the steam flow with falling water column.
  • the kvs value defines how much water flows through a constriction with a temperature of 20 ° C and 1 bar pressure loss.
  • the maximum kvs value is reached when the water level in the tube reaches the lowest point. At this point lies the maximum flow rate of the steam, which is synonymous with the maximum power for heat transfer and the design status of the tube.
  • the kvs value of the tube in [m3 / h] should be designed so that the pressure loss in [mWS] calculated with it corresponds to the overall height of the tube in [mm].
  • the kvs value can be determined with sufficient accuracy using the relationship
  • P means the specific permeability of water in m 3 / hcm 2 , h the height of the tube in [mm], d a the outer diameter of the tube in mm and di the inner diameter of the tube in mm.
  • the pressure loss for steam can be calculated according to the conventional methods and, if necessary, a correction can be made if the pressure loss and tube height differ significantly.
  • the standardization of the nominal widths of steel pipes is generally not the same as that of filter pipes.
  • Large wall thicknesses of the tube should be avoided because the pressure loss is increased, but requirements for material strength due to the low differential pressures between the interior and exterior should not be taken into account.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Nozzles (AREA)

Abstract

L'invention concerne un dispositif destiné à injecter de la vapeur dans un flux d'eau afin de chauffer cette eau. Ledit dispositif est composé a) d'un boîtier essentiellement fermé (404), b) d'une chambre de mélange (442) située dans le boîtier (404), dans laquelle la vapeur est mélangée à l'eau devant être chauffée, c) respectivement d'une ouverture d'admission d'eau (416) et d'une ouverture de sortie d'eau (420) dans le boîtier (404), l'eau étant guidée de l'ouverture d'admission d'eau (416) vers l'ouverture de sortie d'eau (420) au travers de la chambre de mélange (442), d) d'une chambre de vapeur (440) dans le boîtier (404), e) d'une ouverture d'admission de vapeur (424) dans le boîtier (404), la vapeur étant guidée de l'ouverture d'admission de vapeur (424) dans la chambre de vapeur (440), et f) d'une paroi de séparation (430) située entre la chambre de vapeur (440) et la chambre de mélange (442), la paroi de séparation (430) étant poreuse et présentant une pluralité de pores (450) destinés au passage de la vapeur vers la chambre de mélange (442).
EP01940343A 2000-04-19 2001-04-19 Injecteur de vapeur Withdrawn EP1277014A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE20007262U 2000-04-19
DE20007262U DE20007262U1 (de) 2000-04-19 2000-04-19 Dampfinjektor
PCT/EP2001/004424 WO2001081832A1 (fr) 2000-04-19 2001-04-19 Injecteur de vapeur

Publications (1)

Publication Number Publication Date
EP1277014A1 true EP1277014A1 (fr) 2003-01-22

Family

ID=7940530

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01940343A Withdrawn EP1277014A1 (fr) 2000-04-19 2001-04-19 Injecteur de vapeur

Country Status (4)

Country Link
EP (1) EP1277014A1 (fr)
AU (1) AU2001273951A1 (fr)
DE (1) DE20007262U1 (fr)
WO (1) WO2001081832A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3594459A1 (fr) 2018-07-10 2020-01-15 Prosperitos sp. z o.o. Procédé et injecteur de vapeur permettant de fournir de la vapeur ultra-supercritique à des moteurs à piston à vapeur

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10227818A1 (de) 2002-06-21 2004-01-08 Pakdaman, Abolghassem, Prof. Dr.med. Gasanreicherungsmodule
WO2009046466A1 (fr) * 2007-10-10 2009-04-16 Johann Staudinger Dispositif d'apport de gaz dans un liquide
DE102009044566A1 (de) * 2009-11-17 2011-05-19 Domoteck Ltd. Vorrichtung zum Temperieren eines in einem Heizkreislauf umgewälzten Wärmeübertragungsmediums
FR2959299B1 (fr) * 2010-04-23 2015-11-06 Cie Parisienne De Chauffage Urbain Recipient de condensation des produits de purges d'un reseau de distribution de vapeur et systeme de traitement des produits de purges associe

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3837728A1 (de) * 1988-11-05 1990-05-10 Henkel Kgaa Dampf-wasser-mischer
DE3930579A1 (de) * 1989-09-13 1991-04-04 Henkel Kgaa Dampf-wasser-mischer
US5376311A (en) * 1993-12-06 1994-12-27 Deguzman; Vel Apparatus for mixing gas and liquid
DE4432464C2 (de) 1994-09-12 1996-08-08 Ecf En Consulting Gmbh Verfahren und Anlage zum Erhitzen von Wasser mittels Dampf aus dem Dampfnetz einer Fernheizung
DE29719007U1 (de) * 1997-10-24 1999-02-25 Fröb, Rainer, Dipl.-Ing., 90427 Nürnberg Vorrichtung zum Injektieren von Dampf in strömendes Wasser zum Zwecke des Erhitzens des Wassers

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0181832A1 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3594459A1 (fr) 2018-07-10 2020-01-15 Prosperitos sp. z o.o. Procédé et injecteur de vapeur permettant de fournir de la vapeur ultra-supercritique à des moteurs à piston à vapeur

Also Published As

Publication number Publication date
WO2001081832A1 (fr) 2001-11-01
AU2001273951A1 (en) 2001-11-07
DE20007262U1 (de) 2000-08-03

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