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Finned tube heater and its production method

A production method and technology of finned tubes, which are applied in the field of electric heating, can solve the problems of large surface load, high manufacturing cost and short service life of heaters, and achieve the effects of small surface load, saving raw materials and prolonging service life.

Inactive Publication Date: 2006-05-24
穆壮荣
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The electric heater of this structure has great limitations on the diameter and length of the metal tube, so the surface load of the heater is large (10w / cm 2 ), high temperature, high manufacturing cost and short service life

Method used

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  • Finned tube heater and its production method
  • Finned tube heater and its production method
  • Finned tube heater and its production method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Such as figure 1 and figure 2 As shown, the present invention has a heating tube shell 2 made of a metal tube. In the heater shell 2, a heating element 3 is fixed by a fixing frame 6. A power terminal 5 is arranged at the left end of the heating tube shell 2. In the heater shell 2 2 is filled with insulating material 4, an insulating sealant 7 is filled at the port of the heater shell 2, a metal head 8 is installed at the right end of the heater shell 2, and a finned tube 1 is arranged on the outer surface of the heater shell 2, The lower part of the finned tube 1 is embedded in the heater shell 2, and the depth of the finned tube 1 embedded in the heater shell 2 is 0.1-0.5mm.

[0015] During manufacture, heating element 3 is fixed in a heater shell 2 that adopts metal tube to make, and said heating element 3 can adopt nickel-chromium alloy or cermet or resistance wire. The power terminal 5 is drawn out from the left end of the heating tube shell 2 and the port of th...

Embodiment 2

[0017] Such as image 3 As shown, the present invention has a heating tube casing 2 made of a metal tube, in which a heating element 3 is fixed by a fixing frame 6, and power connection terminals 5 are arranged at both ends of the heating tube casing 2, and in the heater casing 2 The shell 2 is filled with insulating material 4, the port of the heater shell 2 is filled with insulating sealant 7, and the outer surface of the heater shell 2 is provided with a finned tube 1, and the lower part of said finned tube 1 is embedded in the heating In the heater shell 2, the finned tube 1 is embedded in the heater shell 2 to a depth of 0.1-0.5 mm.

[0018] During manufacture, heating element 3 is fixed in a heater shell 2 that adopts metal tube to make, and said heating element 3 can adopt nickel-chromium alloy or cermet or resistance wire. The power terminal 5 is drawn out at both ends of the heating tube shell 2 and the port of the heater shell 2 is filled with insulating sealant 7, ...

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Abstract

The invention relates to a finned-tube heater and production method thereof. A heating body is fitted in the heater housing and a power-supply connection terminal is fitted at the end part of the heater housing, insulation material is filled in the heater housing and insulation sealant is filled at the end port of the heater housing. The characteristic is that the external surface of the heater housing is fitted with finned-tube the lower part of which is buried in the heater housing. Advantages: raised surface area of the heater, low surface load and temperature, reduced heater housing size and raw material and cost and prolonged service life.

Description

technical field [0001] The invention belongs to the technical field of electric heating, in particular to a fin tube heater which directly converts electric energy into heat energy and a production method thereof. Background technique [0002] Existing electric heaters are composed of metal tubes, heating elements arranged in the metal tubes, power terminals arranged at both ends of the metal tubes, and insulating materials (such as magnesium oxide powder) filled around the power terminals. The production method is as follows: fix the heating element in a metal tube, lead out the power terminal and then fill it with insulating material. When working, after the power terminal is connected to the power supply, the heating element will generate heat, and the heat will be transmitted to the outside of the metal tube through the magnesium oxide powder. The electric heater of this structure has great limitations on the diameter and length of the metal tube, so the surface load of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B3/50H05B3/10
Inventor 穆壮荣
Owner 穆壮荣
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