CN2456432Y - Mini-electric heater - Google Patents

Abstract

The utility model relates to a heater of an electric heating pipe, particularly a miniature electric heater. In the prior art, when liquid or gas is heated by the electric heating pipe, the liquid or the gas needs to be preheated in a container, preheating time is longer, the volume of the heater is relatively large; when flowing liquid or gas is heated, the temperature of a heated body is inhomogeneous; especially when the liquid is heated in a short time, the uniformity of the temperature is obviously not enough. The utility model provides a miniature electric heater characterized in small volume, fast heating, even warming and low cost, and the utility model is especially suitable for the requirement of quick heating type heating.

Description

Micro electic heater

The utility model is a kind of electric tube heater, particularly a kind of micro-electric heating pipe heater.

When in existing technology, using electrothermal tube heating liquid or gas, two kinds of mode of heatings are arranged: the one, preheating basin formula is because of the basin container occupies sizable volume, so machine volume is big, heavy, installation is inconvenient, warm-up time is long, use inconvenience.The 2nd, the quick-heating type heater, electrothermal tube glass or ceramic electrodeposited coating film heating etc. are arranged, when this electric heater heats at convection cell (gas or liquid), the non-uniform temperature of heated object, when convection cell heated especially at short notice, the uniformity of its temperature was obviously nonconforming.

The purpose of this utility model is to provide that a kind of volume is little, fast, the uniform micro electic heater of temperature of heating, particularly during the convection cell heating, can reach the even temperature requirement at short notice.

For achieving the above object, the utility model adopts following proposal; At the circumference of known electrothermal tube with axial direction with fin with helical form around top.Fin is exactly known spiral heat dissipation sheet.Make the space of leaving setting between fin and fin, form spiral groove, in sleeve pipe the heating part of all fins and electrothermal tube being coated on.Import and export is loaded onto at position at the sleeve pipe two ends, and fluid flows out from outlet from flow through helicla flute between each fin of import, forms the fluid passage.With known electric control principle electrothermal tube is heated, fluid has just become micro electic heater from wherein flowing through, and coats thermal insulation layer around sleeve pipe in order to reduce the loss.

The utility model compared with prior art has remarkable advantage; To form volume especially little because of electrothermal tube and fin, sleeve pipe etc., so can make micro electic heater.Heat density in the sleeve pipe greatly and even relatively, fluid is short, immersion heater of heated time of portion within it, fin is except supporting sleeve and provide the fluid passage, also has thermolysis, convection cell has also increased contact area, so homogeneous heating.

Accompanying drawing has been described embodiment of the present utility model:

Electrothermal tube (4), fin (2), spiral groove (3) are contained in the sleeve pipe (5), and import (6), outlet (1) are equipped with in the sleeve pipe both ends.

Claims (3)

1, a kind of micro electic heater that makes gas or liquid warming, it is made up of sleeve pipe (5), electrothermal tube (4), import (6), outlet (1), fin (2) etc. and it is characterized in that: electrothermal tube (4) and fin (2) are contained in the sleeve pipe (5) of import (6) and outlet (1).

2, fin according to claim 1 (2) is to go up and form spiral groove (3) with helical form around electrothermal tube (4).

3, according to claim 1 and 2 described imports (6) and outlet (1) and spiral groove (3) the formation gas of fin (2) or the flow channel of liquid.

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