CN2397425Y

CN2397425Y - Liquid heater

Info

Publication number: CN2397425Y
Application number: CN 99229444
Authority: CN
Inventors: 洪陵成
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-09-21
Filing date: 1999-09-21
Publication date: 2000-09-20
Anticipated expiration: 2009-09-21

Abstract

The utility model relates to a liquid heater. An electrothermal element is arranged in an inner cavity of an inner core which mostly belongs to a cylinder, and the outer wall of the inner core is provided with a spiral groove which is spiraled on a cylinder. A hose is embedded in the spiral groove and is wound in the inner core, and an outer sleeve is a tubular body which is matched with the inner core. Because the contact surface of the inner part of an embedded groove of a liquid pipe and the inner core is large, heat transfer efficiency is increased. Liquid in the liquid pipe is uniformly heated, and the flow state of the liquid is kept consistent. The utility model is mainly used for heating the liquid with tiny flow capacity in a laboratory.

Description

Fluid heater

The utility model relates to a kind of fluid heater, is mainly used in the heating of laboratory tiny flow quantity fluid.

In the fluid analysis test, often need heat the fluid in the pipeline.The heater that adopts comprises the cylindricality metal inner core and the muff of built-in heating element at present, and the metal inner core is tied with the flexible pipe that passes through for fluid outward, and muff is made with heat-insulating material.Its shortcoming be flexible pipe with the cylindricality inner core between for line contacts, heat transfer area is little, the thermal efficiency is low, the fluid on the same cross section is heated inhomogeneous, influences the nowed forming of fluid.

The purpose of this utility model provides a kind of fluid heater, and it improves existing heater, to increase the heat transfer area of fluid hose, improves the thermal efficiency, and makes the tube fluid thermally equivalent.

This fluid heater comprises cylindricality metal inner core, end cap, overcoat and is wrapped in flexible pipe on the inner core cylinder, the inner chamber of cylindricality inner core is equipped with heating, the end is provided with end cap, interior outer core is processed with the helicla flute that spirals along cylinder, said flexible pipe is to embed in this helicla flute and be wound in inner core, and said overcoat is the tubular body that matches with inner core.The metal inner core also has the axial hole for flexible pipe turnover, and this axial hole communicates with spiral fluted two ends at the whole story, the two ends of the flexible pipe that spirals that helicla flute is interior all in the axial hole by and pass end cap.

The fluid hose of this heater increases the contact-making surface between tube wall and the metal inner core by the embedded winding of helicla flute, and heat transfer efficiency improves.Because flexible pipe is positioned at groove, jacket tube can with the inner core tight fit, fluid is heated evenly, keep the nowed forming of fluid.

Further specify structure of the present utility model below in conjunction with accompanying drawing.

Accompanying drawing is the structural representation of the utility model fluid heater.

As shown in the figure, cylindrical metal inner core 2 is provided with central lumen 2-1, and heating (heating omits among the figure) is housed in the chamber.The outside wall surface of inner core 2 has the helicla flute 2-3 that spirals along cylinder, fluid hose 4 embeds in this helicla flute 3-2 and is wound in inner core 2, two pipe end 4-1, the 4-2 of fluid hose feeds the axial hole 2-2 of inner core from spiral fluted end at the whole story respectively, and passes from the respective aperture of cover plate 1.

Claims

1. fluid heater, comprise cylindricality metal inner core, end cap, overcoat and be wrapped in flexible pipe on the inner core cylinder, the inner chamber of cylindricality inner core is equipped with heating, the outer wall that it is characterized in that inner core is processed with the helicla flute that hovers above cylinder, said flexible pipe is to embed in this helicla flute and be wound in inner core, and said overcoat is the tubular body that matches with inner core.

2. fluid heater according to claim 1 is characterized in that the metal inner core also has the axial hole that passes through for the flexible pipe in-out end, and this axial hole communicates with spiral fluted two ends at the whole story, two pipe ends of flexible pipe all from axial hole by and pass end cap.