EP0909934A2 - Méthode de nettoyage d'éléments chauffants pour chauffe-eau, en particulier des éléments de résistance blindées - Google Patents

Méthode de nettoyage d'éléments chauffants pour chauffe-eau, en particulier des éléments de résistance blindées Download PDF

Info

Publication number
EP0909934A2
EP0909934A2 EP98119206A EP98119206A EP0909934A2 EP 0909934 A2 EP0909934 A2 EP 0909934A2 EP 98119206 A EP98119206 A EP 98119206A EP 98119206 A EP98119206 A EP 98119206A EP 0909934 A2 EP0909934 A2 EP 0909934A2
Authority
EP
European Patent Office
Prior art keywords
elements
water heating
cleaning
cleaning water
heating elements
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Withdrawn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
EP98119206A
Other languages
German (de)
English (en)
Other versions
EP0909934A3 (fr
Inventor
Maurizio Crestani
Luca Fiallo
Mario Pezza
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.)
IRCA SpA Industria Resistenze Corazzate e Affini
Original Assignee
IRCA SpA Industria Resistenze Corazzate e Affini
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 IRCA SpA Industria Resistenze Corazzate e Affini filed Critical IRCA SpA Industria Resistenze Corazzate e Affini
Publication of EP0909934A2 publication Critical patent/EP0909934A2/fr
Publication of EP0909934A3 publication Critical patent/EP0909934A3/fr
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
    • F28G3/00—Rotary appliances
    • F28G3/04—Rotary appliances having brushes
    • 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
    • F24H9/00—Details
    • F24H9/0005—Details for water heaters
    • F24H9/0042—Cleaning arrangements

Definitions

  • This invention relates to a method for cleaning water heating elements, in particular armoured resistance elements.
  • Water heating elements consisting substantially of a steel sheath internally housing a resistive wire separated from the sheath by a dielectric substance, in particular magnesium oxide.
  • the sheath In order to free the surface of the sheath from oxidation and irregularities which could allow the detergent and lime to accumulate with resultant corrosion, the sheath is subjected to finishing treatment generally consisting of polishing in an electrolytic bath.
  • the resistance element is washed with hot water, possibly slightly alkaline, to neutralize the residual bath acids.
  • An object of the invention is to eliminate these drawbacks by providing a method which enables the resistance element to be cleaned in a completely automated manner, is of high productivity and low cost, requires little maintenance, and suffers from no ecological problems.
  • the plant for implementing the method of the invention comprises substantially a loading hopper 2 housing the individual resistance elements 4 already assembled, ie with the resistive wire inserted into the sheath and separated therefrom by dielectric material, for example magnesium oxide.
  • a conveyor 6 for conveying the individual resistance elements to a cleaning station 8 and a polishing station 10.
  • the conveyor exit is connected to a discharge hopper 12.
  • the cleaning station 8 and polishing station 10 comprise two chucks 14 for locking the resistance element and two vegetable fibre brushes 16 of horizontal axis, each of which is faced by a cake of abrasive paste.
  • the brushes are mounted on a traversable frame 20.
  • an individual resistance element 4 is discharged by the loading hopper 2 onto the conveyor 6 to be fed to the cleaning station 8, where it is locked by the locking chucks 14.
  • the brushes 16 are operated so that as a result of their rotation the fibres pick up abrasive paste while at the same time mechanically cleaning the resistance element.
  • the brushes are made to traverse along their axis so as to clean the entire resistance element.
  • the resistance element is then conveyed to the polishing station where the aforedescribed operations are effected. After cleaning, the resistance element is fed to the discharge hopper 12.
  • the described example relates to a plant operating automatically on a straight resistance element.
  • the method can however also be carried out manually, ie by subjecting the individual resistance elements to a manual mechanical cleaning operation. It can also be used manually or automatically on an already completed resistance element.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Cleaning In General (AREA)
  • Cleaning By Liquid Or Steam (AREA)
  • Resistance Heating (AREA)
  • Bidet-Like Cleaning Device And Other Flush Toilet Accessories (AREA)
EP98119206A 1997-10-17 1998-10-12 Méthode de nettoyage d'éléments chauffants pour chauffe-eau, en particulier des éléments de résistance blindées Withdrawn EP0909934A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT97VE000045A IT1297494B1 (it) 1997-10-17 1997-10-17 Procedimento di pulitura di elementi riscaldanti per acqua, in particolare resistenze corazzate.
ITVE970045 1997-10-17

Publications (2)

Publication Number Publication Date
EP0909934A2 true EP0909934A2 (fr) 1999-04-21
EP0909934A3 EP0909934A3 (fr) 2000-05-31

Family

ID=11424315

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98119206A Withdrawn EP0909934A3 (fr) 1997-10-17 1998-10-12 Méthode de nettoyage d'éléments chauffants pour chauffe-eau, en particulier des éléments de résistance blindées

Country Status (2)

Country Link
EP (1) EP0909934A3 (fr)
IT (1) IT1297494B1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106352540A (zh) * 2015-07-21 2017-01-25 中山市元亨家居用品有限公司 一种具有自洁功能的热水器

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE204479C (fr) *
DE3907852A1 (de) * 1988-03-11 1989-09-21 Sical Ab Verfahren und vorrichtung zur rueckgewinnung von waermeenergie aus verschmutztem wasser
FR2655886A1 (fr) * 1989-12-20 1991-06-21 Stein Industrie Appareil de nettoyage des surfaces externe, et eventuellement interne, de tubes de faible diametre.

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0824951B2 (ja) * 1991-12-12 1996-03-13 日本軽金属株式会社 アルミニウムスラブの熱間圧延法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE204479C (fr) *
DE3907852A1 (de) * 1988-03-11 1989-09-21 Sical Ab Verfahren und vorrichtung zur rueckgewinnung von waermeenergie aus verschmutztem wasser
FR2655886A1 (fr) * 1989-12-20 1991-06-21 Stein Industrie Appareil de nettoyage des surfaces externe, et eventuellement interne, de tubes de faible diametre.

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Section Ch, Week 199330 Derwent Publications Ltd., London, GB; Class M14, AN 1993-239419 XP002134579 -& JP 05 161910 A (NIPPON LIGHT METAL CO), 29 June 1993 (1993-06-29) *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106352540A (zh) * 2015-07-21 2017-01-25 中山市元亨家居用品有限公司 一种具有自洁功能的热水器

Also Published As

Publication number Publication date
ITVE970045A0 (it) 1997-10-17
ITVE970045A1 (it) 1999-04-17
EP0909934A3 (fr) 2000-05-31
IT1297494B1 (it) 1999-12-17

Similar Documents

Publication Publication Date Title
CN106975632A (zh) 一种用于汽车配件的清洗装置
CN104971913B (zh) 一种清除平台上残留水泥的清洗机
EP0909934A2 (fr) Méthode de nettoyage d'éléments chauffants pour chauffe-eau, en particulier des éléments de résistance blindées
CN216888714U (zh) 一种皮带自动清洁装置
CN109877092B (zh) 喷砂清理后金属带材的表面清理系统及表面处理方法
CN218308511U (zh) 一种全自动输送带式除铁器
CN208810726U (zh) 全自动镜片清洗机
CN114952453B (zh) 无心磨床机械手装置
CN105665327A (zh) 一种连续清洗方法及该方法使用的装置
CN206005878U (zh) 一种自动化清洗机
CN211711935U (zh) 一种混凝土搅拌站用清洗机构
CN211071041U (zh) 一种烤花窑网带在线清洁装置
CN112777239A (zh) 一种多用途的传送带用变速箱
CN209094031U (zh) 一种机械生产用成品零件清洗装置
CN209849405U (zh) 喷砂清理后金属带材的表面清理系统
CN215036352U (zh) 一种回收铝用的清洁回收装置
CN220806480U (zh) 一种圆钢生产用无心车床防尘上料机构
CN220563628U (zh) 一种输送机皮带的清洁装置
CN112438301A (zh) 一种猪蹄加工用脱骨装置
CN221234613U (zh) 一种提升带耙钉清洁装置
CN213287772U (zh) 一种线路板加工用表面清洁装置
CN115739850B (zh) 一种不合格焊条表面药皮清除装置
CN213468094U (zh) 一种玻璃加工生产线用玻璃渣自动清洁装置
CN218133655U (zh) 一种金属制品加工用清洗装置
CN219170319U (zh) 一种数控机床的冷却装置

Legal Events

Date Code Title Description
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

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

AKX Designation fees paid
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20001201

REG Reference to a national code

Ref country code: DE

Ref legal event code: 8566