JPS5833096A - Heat pipe assembly - Google Patents

Abstract

PURPOSE:To form the titled heat pipe assembly which is simple in structure, high in thermal efficiency and excellent in safety by a method wherein a heater is directly incorporated in a heat pipe having a working liquid sealed therein so that the heat pipe and the heater as a heat source are formed integral with each other. CONSTITUTION:A heat pipe is formed of a cylindrical heat transfer pipe 1. The pipe 1 is provided with a number of projections on the outer peripheral surface thereof in the axial direction so as to obtain an enlarged sectional area of heat transfer for increasing the heat transfer efficiency of the pipe and both of the open ends of the pipe 1 are tightly closed. Further, a heater fitting pipe 5 is inserted into the horizontal heat transfer pipe 1 through a fitting hole 4 so that the pipe 5 extends over nearly the entire length of the pipe 1 along the axis of the latter, and an electrical heater 6 is inserted into the pipe 5. In addition, a working liquid 7 adopted to transfer heat to an object to be heated is sealed within the heat transfer pipe 1 in a quantity sufficient for the entire pipe 5 to be soaked in the liquid and in this way, the liquid 7 transfers heat from the heater 6 to the object to be heated. Accordingly, it will be understood that the heat pipe assembly is simple in structure, has a high thermal efficiency and a high degree of safety.

Description

[Detailed description of the invention] The present invention relates to heat pipe assemblies.

For example, the common heating method for cooking oil in a fryer is the direct heating method, in which the cooking oil is heated directly through an oil tank using a heating source such as gas or electric heat. Because most of the heat from the source is wasted, the heating efficiency is very low, and there is a threshold problem that can easily cause a fire due to ignition during oxidation of the cooking oil.

In view of the above-mentioned conventional problems, the present invention aims to provide a heat vib assembly as a heating means with a simple structure, high heating efficiency, and superior safety. A heat exchanger tube is directly built into the heat exchanger tube.
As a result, the heat pipe and the heat source are constructed into two parts.

Hereinafter, the embodiments of the present invention will be described in detail based on GMII. In FIG. 1 and FIG. l
In order to widen the heat transfer ridges and increase thermal efficiency, O center strips are installed in one direction of the axis on the outer case, and a seven-point cover 2 and a rear cover 3 are installed at the openings at both ends of the heat transfer tube 10. It is fixed in a sealed manner by attaching it.

Horizontal 6: A heating tube 5 for attaching a heater is inserted into the lower end of the inside of the round heat transfer tube 1 through the front cover 24-Wk girder mounting hole 4 over approximately the entire length of the heat transfer tube. Two electric heaters are inserted inside the wrinkled heating tube SO, and the base end of the heating tube 50 is secured by brazing the front cover 2ζ. First, inside the heat transfer tube 1, a working fluid 7 for heat transport is sealed in S* in which the heating tube 5 is immersed as a whole, and the working fluid 7 absorbs snow due to evaporation and condensation. The heater is transmitted to the heated object by collecting and emitting heat, and when it is enclosed in the heat transfer tube 1, it is inserted into the rear cover 3 and operated through the nozzle hole 3a. While filling with fluid, the pressure inside the heat exchanger tube 1 is reduced, and in this state, the nozzle hole 3 is closed by the blocking member opening.

The cap 10 is a round screw hole that attaches the heat pipe assembly in place.

The heat pipe assembly having the above configuration is used, for example, by placing it horizontally in an oil tank in #i7 ryer so that the heat exchange part is immersed in cooking oil, and by energizing the heater 6. The working fluid is heated and evaporated and fills the upper part la of the heat transfer tube L, where it heats the cooking oil by exchanging heat with the cooking oil through the heat transfer tube L, and the heat radiates. The lower half of the heat transfer tube l-
Reflux to. The p-food is heated by repeating the cycle #11Il.

4IL is arranged horizontally, and the lower half 1 of the round heat transfer tube 1 is the evaporation part of the heat pipe.L upper half 11! becomes the condensing part.

In this way, 1 = built in the heat exchanger tube 1 and 9 and -ta 6 to 0
M is completely produced without leaking to the outside *The forged body (2) is transferred, and the evaporated working fluid and cooking oil exchange heat through the wide heat transfer side O heat transfer tubes 1, thus increasing the heating efficiency. Very body'2>J, L may be heater 6 and food and OII touch 4
= There is no risk of fire.

What? , the heat pipe assembly contains the above-mentioned cooking oil o,
It is not only used for iI1m, but can also be used for heating an integral part of a fluid such as underwater gas.

In the illustrated practical example, the heating tube 5 for attaching the heater is inserted across the length of the heat transfer tube 1011I, but the heating tube 5 with a short length of I is inserted only in the heat tube 10-1. A heater may be inserted into the heating tube, thereby increasing the vertical direction O1 of the heat pipe assembly. It becomes possible to use In this case, the heating tube S may be positioned on the axis of the heat transfer tube 10.

As described in detail above, according to the present invention, the working fluid is sealed and the heater is built into the heat exchanger tube, so that the heater can be directly supplied to the working fluid and heated without leaking to the outside. It is possible to reliably transmit the heat to the object, therefore the heating efficiency is very high, and because the heater is built into the heat transfer tube and heats through the working fluid, it is possible to heat the flammable object. There is no risk of fire even when heating, and since the heat pipe and heating source are integrated,
It has a simple structure and is easy to handle.

[Brief explanation of drawings]

FIG. 1 is a longitudinal sectional view showing an embodiment of the present invention, and FIG. 2 is a side view thereof. l... Heat exchanger tube, 5... Heating tube, 6... Heater, 7
...Fist operating fluid.

Claims (1)

[Scope of Claims] 1. A working fluid for thermal axial transmission is sealed inside a heat transfer tube constituting the heat pipe body, and a heating tube is inserted into one end of the heat transfer tube. A heat pipe assembly characterized by having a heater inserted therein. λ Horizontal C: Insert a heating tube into the lower end of the inside of the heat transfer tube on the shaft, and insert a heater inside the wrinkled heating tube. 1. A heat pipe assembly, characterized in that said working fluid is sealed to such an extent that said heating tube is completely immersed therein.