EP0372040A1 - Dispositif de chauffage d'un courant de materiaux. - Google Patents

Dispositif de chauffage d'un courant de materiaux.

Info

Publication number
EP0372040A1
EP0372040A1 EP89905626A EP89905626A EP0372040A1 EP 0372040 A1 EP0372040 A1 EP 0372040A1 EP 89905626 A EP89905626 A EP 89905626A EP 89905626 A EP89905626 A EP 89905626A EP 0372040 A1 EP0372040 A1 EP 0372040A1
Authority
EP
European Patent Office
Prior art keywords
component
flow heater
heater according
flow
heating device
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
EP89905626A
Other languages
German (de)
English (en)
Other versions
EP0372040B1 (fr
Inventor
Lothar Willig
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.)
Wiwa Wilhelm Wagner GmbH and Co KG
Original Assignee
Wiwa Wilhelm Wagner GmbH and Co KG
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 Wiwa Wilhelm Wagner GmbH and Co KG filed Critical Wiwa Wilhelm Wagner GmbH and Co KG
Priority to AT89905626T priority Critical patent/ATE79942T1/de
Publication of EP0372040A1 publication Critical patent/EP0372040A1/fr
Application granted granted Critical
Publication of EP0372040B1 publication Critical patent/EP0372040B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/10—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium
    • F24H1/12—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium
    • F24H1/14—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium by tubes, e.g. bent in serpentine form
    • F24H1/16—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium by tubes, e.g. bent in serpentine form helically or spirally coiled
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/10—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium
    • F24H1/12—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium
    • F24H1/14—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium by tubes, e.g. bent in serpentine form
    • F24H1/16—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium by tubes, e.g. bent in serpentine form helically or spirally coiled
    • F24H1/162—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium by tubes, e.g. bent in serpentine form helically or spirally coiled using electrical energy supply

Definitions

  • the invention relates to a flow heater with a heating device and at least one heatable passage for the material.
  • Flow heaters are used to preheat materials, in particular colors, which are subsequently to be applied with a spray or spray device.
  • the heating of the material leads to an improved material application and takes place by means of the flow heater, which is interposed between a feed pump and a spraying or spraying device.
  • a flow heater is known from the prior art, in which the material is passed through passage channels which are formed in a housing which is heated by heating elements of a heating device. It proves to be disadvantageous that the passage channels can be cleaned poorly or only with considerable effort when the material dries up, and that the throughput of the flow heater is often not, also due to a partial solidification of the material in the passage channels meets the requirements.
  • the invention has for its object to provide a material flow heater of the type mentioned, which With a simple structure and inexpensive to manufacture, a high volume of material throughput is possible and can be repaired inexpensively when the material dries up.
  • the object is achieved in that the passage channel is formed in a first component which can be fastened to a second main component provided with the heating device.
  • the flow heater according to the invention is characterized by a number of significant advantages.
  • the subdivision into a first and a second component makes it possible to separate the heating device from the component provided with the passage channel, so that the latter can be cleaned without the expensive and ex-protected heating device being affected.
  • Another advantage of the flow heater according to the invention is that the first component can be replaced in a simple manner, for example in the case of a color change or in an application in which the volume throughput of the material is to be changed. It proves to be particularly advantageous that the second main component provided with the heating device is required only once and can be used for various first components.
  • the first component has a conical recess into which a conical extension of the second component can be inserted.
  • This configuration ensures a particularly good heat transfer from the second component to the first component, since, owing to the conicity, the two components have a large, gap-free contact area.
  • the conical configuration also ensures a secure fit, which proves to be particularly advantageous if the flow heater is used by untrained personnel under rough operating conditions.
  • the heating device is arranged in the region of the conical extension of the second component. It can furthermore prove to be advantageous if the conical approach additionally comprises a control device. In this embodiment, only the area of the second component which is in direct contact with the first component is heated. This leads to a considerable increase in efficiency, since unnecessary heating of components which are not required is avoided. Since the control device is arranged directly in the area to be heated, it is ensured that the material passing through is always preheated evenly to the preselected temperature.
  • the passage channel is formed in a wall surrounding the conical recess, it also being possible for the first component to be cup-shaped.
  • a further advantageous embodiment of the flow heater according to the invention can also be provided by the fact that a plurality of passage channels arranged parallel to one another are provided, which can additionally each be connected to a common material inlet and a material outlet.
  • a plurality of passage channels arranged parallel to one another are provided, which can additionally each be connected to a common material inlet and a material outlet.
  • FIG. 1 is a side view, partly in section, of an exemplary embodiment of the flow heater according to the invention.
  • the flow heater comprises a first component 2, which is provided with helical passage channels 1, and a second main component 3, which comprises a heating device 4.
  • the heating device 4 of the second component 3 is designed in the form of a plurality of heating rods which are arranged in a conical extension 6.
  • the heating rods are designed in the usual way and are connected to a control device (not shown in detail) and an overheating protection, which in turn is connected to a power connection 10.
  • the second component 3 further comprises a control switch 11, shown only schematically.
  • the first component 2 is essentially cup-shaped and has a conical recess 5 which is designed to match the conical extension 6 of the second main component 3. Due to the cup-like configuration, the first component 2 has a wall 7, in which helical passage channels 1 are formed.
  • the passage channel 1 is connected to a material inlet 8 or a material outlet 9. Is in the parallel connection of the through-channels 1 through a flow ⁇ possible even if one of the passageways 1 should be blocked.
  • screws 12 are provided which extend through a recess in the bottom area of the first component 2 and can be screwed into a threaded recess of the conical extension 6 are.
  • a separation of the first and the second component can be facilitated in that the screws are screwed into threaded bores 13 in the bottom of the first component 2, which are only shown in dash-dotted lines in FIG. 1 and are given the reference number 14.
  • the screws 12 can be screwed into the threaded bore 13 after they have been removed and used to loosen the two components.
  • the first component 2 can be cylindrical in terms of its outer dimensions, the passage channels 1 can be in the form of ring channels, but it is also possible to design the first component 2 in terms of its outer dimensions polygonally, for example square.
  • the invention is not limited to the exemplary embodiment shown, rather it is possible to vary the dimensioning of the first and the second component over a wide range. For example, it is possible to provide a changed number of passage channels or the passage channels with others To develop cross-sectional relationships.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
  • Resistance Heating (AREA)
  • Nozzles (AREA)
  • Ink Jet (AREA)
  • Coating Apparatus (AREA)

Abstract

Un dispositif de chauffage d'un courant agencé entre un dispositif d'alimentation et un dispositif pulvérisateur présente au moins un canal de passage dans lequel les matériaux, notamment des colorants, sont chauffés au moyen d'un corps chauffant. Ce dispositif de chauffage doit présenter une structure simple, être économique et facile à nettoyer. Le canal de passage (1) est ménagé dans un premier module (2) susceptible d'être attaché à un deuxième module principal (3) pourvu du corps chauffant (4). On peut changer aisément et rapidement le premier module pourvu du canal de passage, qui présente une structure simple et robuste. Par conséquent, on peut utiliser ce dispositif de chauffage de courant pour traiter des matériaux, notamment des colorants.
EP89905626A 1988-05-13 1989-05-11 Dispositif de chauffage d'un courant de materiaux Expired - Lifetime EP0372040B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89905626T ATE79942T1 (de) 1988-05-13 1989-05-11 Materialdurchflusserhitzer.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3816335A DE3816335A1 (de) 1988-05-13 1988-05-13 Materialdurchflusserhitzer
DE3816335 1988-05-13

Publications (2)

Publication Number Publication Date
EP0372040A1 true EP0372040A1 (fr) 1990-06-13
EP0372040B1 EP0372040B1 (fr) 1992-08-26

Family

ID=6354294

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89905626A Expired - Lifetime EP0372040B1 (fr) 1988-05-13 1989-05-11 Dispositif de chauffage d'un courant de materiaux

Country Status (6)

Country Link
EP (1) EP0372040B1 (fr)
JP (1) JP3016804B2 (fr)
KR (1) KR0122591B1 (fr)
CA (1) CA1310051C (fr)
DE (2) DE3816335A1 (fr)
WO (1) WO1989011069A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4301114C2 (de) * 1993-01-18 1995-12-07 Hilzinger Gmbh & Co Wilhelm Verfahren und Vorrichtung zum Austragen eines fließfähigen, erwärmten Mediums aus einem Vorratsbehälter
DE102009038762B4 (de) * 2009-08-27 2011-09-01 Wiwa Wilhelm Wagner Gmbh & Co Kg Wärmeübertrager
JP2011144976A (ja) * 2010-01-13 2011-07-28 Sanden Corp 加熱装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1833066A (en) 1931-03-04 1931-11-24 Walter J Bradfish Electric heater
US3551641A (en) 1968-05-03 1970-12-29 Andrew Truhan Refrigerated intravenous liquid warming device
JPS5242344B2 (fr) * 1972-02-01 1977-10-24
US4465922A (en) * 1982-08-20 1984-08-14 Nordson Corporation Electric heater for heating high solids fluid coating materials

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO8911069A1 *

Also Published As

Publication number Publication date
DE3816335A1 (de) 1989-11-23
JP3016804B2 (ja) 2000-03-06
WO1989011069A1 (fr) 1989-11-16
KR900702306A (ko) 1990-12-06
CA1310051C (fr) 1992-11-10
JPH02504306A (ja) 1990-12-06
KR0122591B1 (ko) 1997-11-13
EP0372040B1 (fr) 1992-08-26
DE58902151D1 (de) 1992-10-01

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