FI82510B - ELUPPVAERMARE FOER ROER. TRANSFER OF THE EARLY DAY 25.05.90 - Google Patents

ELUPPVAERMARE FOER ROER. TRANSFER OF THE EARLY DAY 25.05.90 Download PDF

Info

Publication number
FI82510B
FI82510B FI891233A FI891233A FI82510B FI 82510 B FI82510 B FI 82510B FI 891233 A FI891233 A FI 891233A FI 891233 A FI891233 A FI 891233A FI 82510 B FI82510 B FI 82510B
Authority
FI
Finland
Prior art keywords
tube
pipe
channel
heater
wall
Prior art date
Application number
FI891233A
Other languages
Finnish (fi)
Swedish (sv)
Other versions
FI82510C (en
FI891233A0 (en
Inventor
Urpo Vainio
Original Assignee
Urpo Vainio Oy
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 Urpo Vainio Oy filed Critical Urpo Vainio Oy
Priority to FI891233A priority Critical patent/FI82510C/en
Publication of FI891233A0 publication Critical patent/FI891233A0/en
Priority to PCT/FI1990/000068 priority patent/WO1990010817A1/en
Priority to CA002062738A priority patent/CA2062738A1/en
Publication of FI82510B publication Critical patent/FI82510B/en
Application granted granted Critical
Publication of FI82510C publication Critical patent/FI82510C/en
Priority to SE9103481A priority patent/SE469533B/en
Priority to NO91914618A priority patent/NO914618L/en

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03BINSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
    • E03B7/00Water main or service pipe systems
    • E03B7/09Component parts or accessories
    • E03B7/14Devices for thawing frozen pipes
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L53/00Heating of pipes or pipe systems; Cooling of pipes or pipe systems
    • F16L53/30Heating of pipes or pipe systems
    • F16L53/35Ohmic-resistance heating
    • F16L53/38Ohmic-resistance heating using elongate electric heating elements, e.g. wires or ribbons
    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03BINSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
    • E03B7/00Water main or service pipe systems
    • E03B7/09Component parts or accessories
    • E03B7/10Devices preventing bursting of pipes by freezing
    • E03B7/12Devices preventing bursting of pipes by freezing by preventing freezing

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Public Health (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Water Supply & Treatment (AREA)
  • Mechanical Engineering (AREA)
  • Pipe Accessories (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Resistance Heating (AREA)
  • Surface Heating Bodies (AREA)
  • Branch Pipes, Bends, And The Like (AREA)

Description

8251 0 Sähkövirralla toimiva putken lämmitin8251 0 Electric tube heater

Vesi-ja viemärijohtoja joudutaan usein avaamaan lämmittämällä näiden jäädyttyä umpeen.Water and sewer lines often have to be opened by heating when they freeze.

5 Sulatus on vaikeutunut entisestään siksi että näitä johtoja on alettu valmistaa sähköä johtamattomasta materiaalista, kuten muovista. Putkea ei täten enää voi lämmittää käyttämällä sitä sähkövastuksena.5 Smelting has become even more difficult as these wires have begun to be made of non-conductive material such as plastic. The tube can thus no longer be heated by using it as an electric heater.

Lämmitystä on yritetty kiertämällä putken pinnalle tai 10 sijoittamalla sen sisälle sähköä johtavia lankoja, jotka toimivat vastuksena. Näiden lankojen suojaus on kuitenkin hankalaa ja sisäpuolella sijaitsevat häiritsevät myös nesteen vapaata virtausta. On myös yritetty käyttää muovista putkea, jossa vastuslangat on upotettu 15 putken seinämään joko putken suuntaisina tai kierteisesti. Jotta ei tarvitsisi putkimateriaalin ulkopuolisia paluujohtimia, on materiaalin sisään upotetut vastuslangat voitu putken asennusvaiheessa parittain oikosulkea putken toisessa päässä. Paitsi vastuslankaa on vastukse-20 na voitu käyttää myös nauhan tai muun muotoista vastusta. On kuitenkin vaikeaa valmistaa putkea, jonka seinämään jo valmistusvaiheessa upotetaan vastuslanka. Varsinkin jos käytetään normaalista 380 V, 230 V tai 110 V jännitettä, joka edellyttää vastuslangan suojaamista 25 vahingoittumiselta useissa maissa voimassa olevien sähkö turvallisuus vaati mu s ten mukaisesti.Attempts have been made to heat the heating by winding it on the surface of the tube or by placing electrically conductive wires inside it which act as a resistance. However, the protection of these wires is difficult and those located inside also interfere with the free flow of liquid. Attempts have also been made to use a plastic tube in which the resistance wires are embedded in the wall of the tube 15, either parallel to the tube or helically. In order to avoid the need for return conductors outside the pipe material, the resistance wires embedded in the material can be short-circuited at the other end of the pipe during the pipe installation phase. In addition to the resistance wire, it has also been possible to use a resistor in the form of a strip or other resistor. However, it is difficult to make a pipe in the wall of which a resistance wire is embedded in the wall already at the manufacturing stage. Especially if a normal voltage of 380 V, 230 V or 110 V is used, which requires protection of the resistor wire from damage 25 in accordance with the electrical safety requirements in force in several countries.

Oheinen keksintö poistaa nämä haitat. Se on tunnettavissa lähinnä niistä seikoista, jotka on mainittu patenttivaatimuksessa 1.The present invention overcomes these disadvantages. It is known mainly from the facts mentioned in claim 1.

30 Keksinnön eräs sovellutus on seuraavassa selostettu oheisen kuvan 1 avulla.An embodiment of the invention is described below with reference to the accompanying Figure 1.

Valmiin muoviputken seinämän 1 ulkopuolelle valetaan lisäke, joka muodostaa kanavan 2, jonka sisälle voidaan joko putken valmistuksen viimeisenä vaiheena tai myöhem-35 min vetää suojattu vastuslanka tai lankoja 3, samaan tapaan kuin sähkökaapelit vedetään rakennuksissa käytettyihin muoviputkistoihin. Kanava vastuslankoja varten voidaan myös tehdä putken seinämään jo itse putken vai- 2 82510 mistuksen puristusvalun yhteydessä. Kanava voidaan myös tehdä tavanomaisen putken päälle työntämällä muovikais-taan 5, kuten kuvassa 2 on esitetty. Muovikaistan helmat 6 vain työnnetään putken ympärille.An extension is cast outside the wall 1 of the finished plastic pipe, forming a duct 2 into which a shielded resistance wire or wires 3 can be laid either at the last stage of pipe production or later 35 minutes, just as electrical cables are laid in plastic pipes used in buildings. The channel for the resistance wires can also be made in the wall of the pipe already in connection with the injection molding of the pipe itself. The channel can also be made on a conventional pipe by pushing a plastic strip 5, as shown in Figure 2. The skirts 6 of the plastic strip are simply pushed around the tube.

5 Lankojen vastus, suojaus ja rakenne yleensäkin voi vaihdella käyttötarkoituksen mukaan.5 The resistance, protection and construction of wires in general may vary depending on the application.

Langat voidaan lukita paikoilleen, ja jopa valaa yhteen putkimateriaalin kanssa lämmönjohtokyvyn parantamiseksi jos kanavan seinämään sen valmistusvaiheessa tai myöhem-10 min tehdään reikiä 4, joiden kautta kanavaan puristetaan sopivaa sidos-ja täytemassaa. Massa voidaan sopivalla lävistimellä varustetulla puristimella painaa myös seinämän läpi ilman että tarvitaan reikiä 4. Putkia paikoilleen asennettaessa on kaapeli lämmönjohtumisen pa-15 rantamiseksi yleensä syytä sijoittaa putken keskustasta alaspäin.The wires can be locked in place, and even cast together with the pipe material to improve the thermal conductivity if holes 4 are made in the wall of the duct during its manufacture or later-10 min, through which a suitable bonding and filling mass is pressed into the duct. The mass can also be pressed through the wall with a press equipped with a suitable punch without the need for holes 4. When installing the pipes, it is usually advisable to place the cable to improve the heat conduction downwards from the center of the pipe.

Kanavia 2 voi olla paitsi yksi tarpeen mukaan myös useita.Channels 2 can be not only one as needed but also several.

lili

Claims (4)

1. Rörets (1) uppvärmare med elström, där uppvärmningen 5 t.ex. för att smälta is utförs genom att mata elström i en motständsträd eller flera (3), som är placerade i rörväggen eller ett utspräng i denna, känneteck-n a t därav, att utanpä rörets (1) vägg efter rörets tillverkning gjorts ett utspräng, där det finns en kanal 10 (2) för installerandet av elmotständsträdarna (3) i ett senare skede eller att denna kanal (2) görs i rörväggen redan vid tillverkningen av röret.1. The tube (1) heater with electric current, where the heating 5 e.g. for melting ice is carried out by feeding electric current in a resistance tree or several (3) located in the pipe wall or a protrusion therein, characterized in that, after the pipe's manufacture, the wall of the pipe (1) is made a protrusion, where there is a channel 10 (2) for the installation of the electrical resistor trees (3) at a later stage or that channel (2) is made in the pipe wall already in the manufacture of the pipe. 2. Rörets (1) uppvärmare med kanal (2), enligt patent-15 krav 1, kännetecknat därav, att genom i kanalens (2) väggar befintliga häl (4) efter kabel-installeringen i kanalen pressas bindemedels- och fyll-ningsmassa. 202. The tube (1) heater with channel (2), according to claim 1, characterized in that binder and filling material are pressed through the heels (4) of the channel (2) existing in the walls of the channel (2). 20 3. Rörets uppvärmare enligt patentkrav 1, känne tecknat därav, att det alltefter behov finns mer än en kanal (2).3. The pipe heater according to claim 1, characterized in that there is more than one duct (2) as needed. 4. Rörets uppvärmare rör enligt patentkrav 1, k ä n n e-25 tecknat därav, att det utanpä rörets (1) vägg befintliga utspränget med kanal (2) bestär av en plast-remsa (5) som fästes vid röret genom att skjuta de plastremsan (5) tillhörande plastfällarna (6) runt om-kring röret. IlThe tube heater tube according to claim 1, characterized in that the external projection of the outer tube (1) with channel (2) consists of a plastic strip (5) which is attached to the tube by sliding the the plastic strip (5) of the plastic traps (6) around the tube. Il
FI891233A 1989-03-16 1989-03-16 Electric heater for pipes FI82510C (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
FI891233A FI82510C (en) 1989-03-16 1989-03-16 Electric heater for pipes
PCT/FI1990/000068 WO1990010817A1 (en) 1989-03-16 1990-03-16 Electric current heater for pipes
CA002062738A CA2062738A1 (en) 1989-03-16 1990-03-16 Electric current heater for pipes
SE9103481A SE469533B (en) 1989-03-16 1991-11-25 Electric current heater for pipes
NO91914618A NO914618L (en) 1989-03-16 1991-11-25 ELECTRICAL HEATER FOR BEETS

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI891233A FI82510C (en) 1989-03-16 1989-03-16 Electric heater for pipes
FI891233 1989-05-25

Publications (3)

Publication Number Publication Date
FI891233A0 FI891233A0 (en) 1989-03-16
FI82510B true FI82510B (en) 1990-11-30
FI82510C FI82510C (en) 1991-03-11

Family

ID=8528063

Family Applications (1)

Application Number Title Priority Date Filing Date
FI891233A FI82510C (en) 1989-03-16 1989-03-16 Electric heater for pipes

Country Status (5)

Country Link
CA (1) CA2062738A1 (en)
FI (1) FI82510C (en)
NO (1) NO914618L (en)
SE (1) SE469533B (en)
WO (1) WO1990010817A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7964826B2 (en) * 2005-08-09 2011-06-21 Watlow Electric Manufacturing Company Modular heater systems
US7626146B2 (en) 2005-08-09 2009-12-01 Watlow Electric Manufacturing Company Modular heater systems
US7919733B2 (en) 2005-08-09 2011-04-05 Watlow Electric Manufacturing Company Modular heater systems
US8809751B2 (en) 2005-08-09 2014-08-19 Watlow Electric Manufacturing Company Modular heater system
CN103122811A (en) * 2012-11-28 2013-05-29 襄阳康捷飞龙电气有限公司 Heating oil pipe for automobile
JP6907210B2 (en) 2015-12-16 2021-07-21 ワットロー・エレクトリック・マニュファクチャリング・カンパニー Improved modular heater system

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3214571A (en) * 1963-05-27 1965-10-26 William J Indoe Heating cable and connectors therefor
DE1600544A1 (en) * 1967-03-03 1970-02-05 Poppe Dipl Ing Ulrich Pipe for flowing gases or pipelines carrying liquids
FI54393C (en) * 1968-06-05 1978-11-10 Sverre Magnus Elvestad FROSTFRI PLASTLEDNING
US3617699A (en) * 1969-03-10 1971-11-02 Donald F Othmer A system for electrically heating a fluid being transported in a pipe
US3706872A (en) * 1970-05-15 1972-12-19 William J Trabilcy System for electrically heating fluid-conveying pipe lines and other structures
US3834458A (en) * 1973-06-15 1974-09-10 Thermon Mfg Co Pipe heat transfer assembly and method of making same
JPS5541646A (en) * 1978-09-18 1980-03-24 Shinetsu Polymer Co Hollow tubular heater
SE7904310L (en) * 1979-05-16 1980-11-17 Bulten Kanthal Ab ELECTRICAL ELEMENT
US4581521A (en) * 1980-08-28 1986-04-08 Grise Frederick Gerard J Electrically heated pipe assembly
US4791277A (en) * 1987-02-09 1988-12-13 Montierth Garry L Heating and insulation arrangement for a network of installed pipes and method

Also Published As

Publication number Publication date
SE9103481D0 (en) 1991-11-25
NO914618D0 (en) 1991-11-25
WO1990010817A1 (en) 1990-09-20
FI82510C (en) 1991-03-11
CA2062738A1 (en) 1990-11-26
NO914618L (en) 1992-04-21
FI891233A0 (en) 1989-03-16
SE9103481L (en) 1992-01-24
SE469533B (en) 1993-07-19

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Owner name: URPO VAINIO OY