EP2037190A1 - Humidificateur à vapeur - Google Patents

Humidificateur à vapeur Download PDF

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Publication number
EP2037190A1
EP2037190A1 EP07117252A EP07117252A EP2037190A1 EP 2037190 A1 EP2037190 A1 EP 2037190A1 EP 07117252 A EP07117252 A EP 07117252A EP 07117252 A EP07117252 A EP 07117252A EP 2037190 A1 EP2037190 A1 EP 2037190A1
Authority
EP
European Patent Office
Prior art keywords
chamber
air duct
humidifier according
channel
duct humidifier
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
EP07117252A
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German (de)
English (en)
Other versions
EP2037190B1 (fr
Inventor
Ludwig Michelbach
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Individual
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Individual
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Publication date
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Publication of EP2037190A1 publication Critical patent/EP2037190A1/fr
Application granted granted Critical
Publication of EP2037190B1 publication Critical patent/EP2037190B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F6/00—Air-humidification, e.g. cooling by humidification
    • F24F6/02—Air-humidification, e.g. cooling by humidification by evaporation of water in the air
    • F24F6/08—Air-humidification, e.g. cooling by humidification by evaporation of water in the air using heated wet elements
    • F24F6/10—Air-humidification, e.g. cooling by humidification by evaporation of water in the air using heated wet elements heated electrically
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F6/00—Air-humidification, e.g. cooling by humidification
    • F24F6/18—Air-humidification, e.g. cooling by humidification by injection of steam into the air

Definitions

  • the invention relates to an air duct humidifier in which an air flow guided in a wall limited by walls is moistened and supplied to a space to be humidified, wherein the air duct humidifier comprises a flow generator, in particular a fan, and a humidifying unit with at least one chamber for receiving a humidifying fluid, in particular water. and an electric heater that can be driven to evaporate the dampening fluid.
  • the steam generated in the chamber is passed through a pipe in the channel of the air duct humidifier and entrained there by the air flow.
  • the object of the present invention is to improve such an air duct humidifier energetically and / or control technology.
  • a key consideration of the present invention is to at least partially, preferably completely, arrange the at least one chamber of the humidifying unit within the channel.
  • the heated steam must not be transported over a greater distance, which has a positive effect on the controllability and controllability of the air duct humidifier while avoiding hazards due to the guidance of hot steam in supply lines over a greater length ,
  • the solution proposed here is also much cheaper energetically, since the inevitably discharged from the chamber or a possible steam guide heat completely removed from the air flow of the air to be humidified, in particular can be used energetically.
  • the steam generation is also carried out in the channel or in the area flowed around by the air flow, so that the heat generated by the steam generation waste heat does not arise outside but within the channel.
  • the air duct humidifier further comprises a heating control, wherein the heating control is in operative connection with a humidification control device, and wherein the humidification control device sets a respectively required heating power via the heating control in dependence on a room humidity sensor and / or a duct humidity sensor.
  • the at least one chamber is arranged at a distance from the walls of the channel, so that it is flowed around on all sides by the air flow guided in the channel.
  • the at least one chamber is aligned with respect to the longitudinal extent of the channel so that it occupies the smallest possible cross-section of the channel.
  • the at least one chamber is aligned with respect to the longitudinal extent of the channel so that it occupies the smallest possible cross-section of the channel.
  • a sensing level sensor in particular a level sensor, is effective for detecting the level of the humidifying fluid in the chamber.
  • the at least one chamber preferably permanently in operation, is connected to a supply system for supplying moistening fluid.
  • the supply system comprises one or more actuators, in particular solenoid valves, to allow an inflow of moistening fluid to a specific chamber.
  • a fill level sensor When a fill level sensor is provided, it can preferably be in operative connection, directly or indirectly, in particular via the moistening control device, with the actuator assigned to the respective chamber.
  • the preferred heating controller may comprise a thyristor circuit, preferably with a 0V to 10V control input or a simple on / off control (two-point control).
  • Preferred dimensions of the electrical heating of a chamber is designed for a maximum power in the range between 2 KW and 90 KW, preferably between 5 KW and 70 KW. It is insofar an evaporation unit, which is designed for larger humidification services, such as those incurred in particular for factory buildings.
  • the chamber in the direction of its longitudinal extension on a blunter first end and a sharper compared to this second end.
  • This non-mirror-inverted configuration of the respective end sides of the chamber facing the air flow is preferred for reasons of flow dynamics.
  • the sharper end may face the airflow.
  • the chamber is adjoined at its upper region by a steam lance through which the generated vapor exits the chamber into the channel of the air duct humidifier.
  • a steam guide must necessarily be present to direct the steam into the channel, it is also preferred in the inventive arrangement proposed here to provide a steam lance, that is controlling the vapor out of the chamber and into the airflow at predetermined locations within the channel.
  • the steam lance preferably has a plurality of mutually spaced vapor outlets.
  • the steam is thus distributed spatially distributed.
  • the steam lance can have a vertical arm which adjoins the chamber and a horizontal arm adjoining the vertical arm, on which the steam outlets are formed.
  • a method is further proposed for humidifying an airflow guided in a wall limited by walls by means of an air duct humidifier, wherein the air duct humidifier comprises a flow generator and a humidifying aggregate, wherein further humidification takes place via evaporation of a humidifying fluid by heating and wherein the heating of the humidifying fluid within the channel is made.
  • the heating of the moistening fluid within the channel has a number of decisive advantages, namely the advantage that the heated steam does not have to be guided or transported outside the channel and that control can be carried out more directly ,
  • the chosen approach also appears energetically favorable, since the waste heat occurring during the heating process can not only be dissipated by the air flow in the channel, but can even be used advantageously in the context of air conditioning.
  • a first embodiment of a humidifier according to the invention is illustrated in a schematic principle view.
  • channel 11 as laminar air flow is performed as possible.
  • This air flow is generated by a flow generator 12, in particular by one or more fans.
  • a chamber 14 is arranged within the channel 11, preferably also spaced from the walls 20, in which a moistening fluid is heated and evaporated.
  • the vapor of the dampening fluid is discharged from the chamber 14 via a steam lance 27, which has a vertical arm 29 and a horizontal arm 30, to the air flow of the channel 11.
  • the steam lance 27 has a plurality of suitably spaced steam outlets 28.
  • the chamber is fastened via support struts 31 to walls 20 of the channel 11, in particular on a bottom-side or ceiling-side wall. Furthermore, to the chamber 14 in the present embodiment, a supply system 23 is connected, via which humidifying fluid in the liquid state can be tracked to compensate for the amount consumed by the evaporation.
  • a arranged in the chamber 14 heater 15 (see. Fig. 2 ) is connected via an electrical supply line 32 to a power source (not shown). Furthermore, one or more signal lines 33 are guided to the chamber 14.
  • the chamber 14 is designed asymmetrically, namely a stubborn first end 25 facing away from the air flow and a sharper second end 26 facing the air flow.
  • the chamber 14 is shown in a schematic sectional view.
  • the chamber 14 is surrounded on all sides by a thermal insulation 21 in order to minimize the heat loss occurring during the heating of the moistening fluid.
  • an electric heater 15 is arranged, which is connected via an electrical supply line 32 to a power source.
  • the heating power of the electric heater 15 is via an intermediate heater control 16 controlled, which may be formed as a thyristor.
  • the thyristor circuit for controlling the power of the electric heater 15 itself has a 0V to 10V input for driving the heater control 16 by a humidification controller 17.
  • the humidification control device 17 represents the central control and / or regulating member of the air duct humidifier proposed here and, in the present embodiment, is in operative connection with a duct humidity sensor 19 and a room humidity sensor 18. From the humidity values determined by the duct humidity sensor 19 or the room humidity sensor 18, the humidification control device 17 can determine which heating power of the electric heater 15 is required in order to achieve a desired setpoint humidification. Reports the channel humidity sensor 19, for example, a supersaturation in the channel 11 so the heating power of the electric heater 15 is steadily reduced. If the room humidity, which is determined via the room humidity sensor 18, below a predetermined setpoint, the humidification performance is increased by increasing the heat output of the electric heater 15, as far as this does not lead to over-humidification in the channel 11.
  • the measurement signals of the room humidity sensor 18 and the channel humidity sensor 19 thus serve to generate an actuating signal for the heating control 16 within the humidification control device 17, which also has a desired setpoint humidity in the room.
  • the heating control 16 is driven so that the electric heater 15 applies the respectively required electrical heating energy.
  • an already mentioned supply system 23 is provided to which the chamber 14 is connected. If water used as dampening fluid, in particular mains water taken from a mains network, is used, this humidifying fluid first passes through an osmosis system for desalination and can then reach the chamber 14 via a supply line 35. Within the supply line 35, an actuator 24 assigned to the chamber 14 is provided, which at the request of the humidification control device 17 releases or shuts off the supply of humidifying fluid.
  • a filling level sensor 22 which may be designed in particular as a level sensor.
  • the Fsselstandssensor 22 communicates with the Befeuchtungskontroll adopted 17 in operative connection, so that when falling of the level below a predetermined level of the actuator 24 is opened and new Befeuchtungsfluid over a predetermined period or until an upper liquid level is reached is refilled.
  • a temperature monitor 36 may be disposed within the chamber 14 to shut off the power supply for the electric heater 15 when a predetermined maximum temperature is exceeded, such as when the electric heater 15 is operated in spite of too low a level of humidifying fluid in a fault. Therefore, the temperature monitor 36 can preferably act on the heating control 16 directly, thus also bypassing the humidification control device 17.
  • Fig. 3 an alternative embodiment is illustrated in a cross-sectional view.
  • a plurality of chambers 14, here specifically four, are arranged within the cross section of the channel 11, so that vaporized dampening fluid can be generated in parallel at four points.
  • two chambers 14 are attached via support struts 31 on a bottom-side wall 20, two further chambers 14 via support struts 31 on a ceiling-side wall.
  • a common supply system 23 branches into corresponding supply lines 35, which are assigned directly to the chambers 14. Within these supply lines 35 each associated with the chambers 14 actuators 24 are arranged so that each chamber can be individually charged with moistening fluid.
  • each chamber 14 has an electrical supply line 32, via which the heating power of the respective chamber 14 can be set individually.
  • each chamber 14 is connected to the humidification control device 17 or the heating control 16 via signal lines 33, which are respectively applied via separate lines or in a bus or multiplex system.
  • each chamber 14 can be controlled separately, so that it is possible to generate in all chambers a substantially equal steam output at a given time or to produce different steam capacities in the chambers.
  • individual chambers may also be completely inactive and only activated when the steam capacity of the chambers already in operation is insufficient.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Humidification (AREA)
EP20070117252 2007-09-13 2007-09-26 Humidificateur à vapeur Not-in-force EP2037190B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102007043779 2007-09-13

Publications (2)

Publication Number Publication Date
EP2037190A1 true EP2037190A1 (fr) 2009-03-18
EP2037190B1 EP2037190B1 (fr) 2014-07-16

Family

ID=39105646

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20070117252 Not-in-force EP2037190B1 (fr) 2007-09-13 2007-09-26 Humidificateur à vapeur

Country Status (2)

Country Link
EP (1) EP2037190B1 (fr)
DE (1) DE202007013484U1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010006889A1 (de) * 2010-02-05 2011-08-11 Klingenburg GmbH, 45968 Vorrichtung zur Konditionierung eines Luftstroms
DE102020210835A1 (de) 2019-08-29 2021-03-04 LAVAIR Aktiengesellschaft Klimatechnik Luftbefeuchtungsvorrichtung

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3219796A (en) * 1962-01-04 1965-11-23 Badertscher Apparatus for moistening air
US4239956A (en) * 1978-07-31 1980-12-16 Dri-Steem Humidifier Co., Inc. Electric steam humidifier
US4350286A (en) * 1979-08-20 1982-09-21 Diesel Kiki Company, Ltd. Humidity control apparatus
US5359692A (en) * 1990-04-18 1994-10-25 Industrielle Du Ponant Sa Electronic-type vaporizer for aircraft humidification having a single use disposable steam generation container
US5758018A (en) * 1995-03-27 1998-05-26 American Metal Products Co. Power steam humidifier
US5855823A (en) * 1997-05-16 1999-01-05 Huntair Inc. Steam humidifier
US20040035569A1 (en) * 2001-01-09 2004-02-26 Osamu Suenaga Device and method for feeding treating air

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3219796A (en) * 1962-01-04 1965-11-23 Badertscher Apparatus for moistening air
US4239956A (en) * 1978-07-31 1980-12-16 Dri-Steem Humidifier Co., Inc. Electric steam humidifier
US4350286A (en) * 1979-08-20 1982-09-21 Diesel Kiki Company, Ltd. Humidity control apparatus
US5359692A (en) * 1990-04-18 1994-10-25 Industrielle Du Ponant Sa Electronic-type vaporizer for aircraft humidification having a single use disposable steam generation container
US5758018A (en) * 1995-03-27 1998-05-26 American Metal Products Co. Power steam humidifier
US5855823A (en) * 1997-05-16 1999-01-05 Huntair Inc. Steam humidifier
US20040035569A1 (en) * 2001-01-09 2004-02-26 Osamu Suenaga Device and method for feeding treating air

Also Published As

Publication number Publication date
EP2037190B1 (fr) 2014-07-16
DE202007013484U1 (de) 2008-02-21

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