JPH03225199A - Fluid heating device - Google Patents

Abstract

PURPOSE:To heat fluid, which flows through a fluid conduit, so as to obtain substantially uniform temperature distribution and permit effective regulation of flow by a method wherein a coil layer is arranged around the outer wall of the metallic fluid conduit, accommodating a honeycomb made of a metal, while flux is generated by the coil layer. CONSTITUTION:A honeycomb 4 is formed of a metallic sheet and a fluid conduit 5, accommodating the honeycomb 4, is made of a metal. A coil layer 7, into which a coil 6 is incorporated, is arranged on the outer wall of the fluid conduit 5 at a position opposing to the honeycomb 4. When current is conducted through the coil 6, the coil layer 7 generates flux. The honeycomb 4 and the fluid conduit 5 are made of metals and, therefore, these parts themselves can be heat generating bodies by the flux. Accordingly, the fluid, which flows through the fluid conduit, can be heated so as to obtain uniform temperature distribution substantially and, further, projected parts can be eliminated in the fluid conduit 5 except the honeycomb 4 whereby the fluid, which flows through the fluid conduit 5, can be heated sufficiently and effective flow regulation can be effected.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a fluid heating device equipped with a rectifying device effective for heating and rectifying fluid passing through a pipe.

2. Description of the Related Art Conventional fluid heating devices of this type generally have a heating element and a rectifying device disposed independently of each other. below,
Its configuration will be explained with reference to FIG.

As shown in the figure, the fluid conduit 1 has a heating element 2 and a rectifying grid 3 inside.

In the above configuration, when fluid is caused to flow through the fluid conduit 1 and the fluid heating device is operated, the fluid is heated by the heating element 2 that generates heat, and further rectified by the rectifying grid 3.

The reason such fluid heating devices have been used in the past is to sufficiently heat the fluid flowing within the fluid conduit. In other words, it is possible to use the fluid conduit itself as a surface heating element and prevent the heating element from protruding into the fluid conduit, but this method requires the velocity distribution of the fluid and the surface heat generation in order to heat the fluid flowing inside the fluid conduit to the center. Considering heat transfer from the body as well, this is insufficient. In the end, the most effective means for sufficiently heating the fluid flowing through the fluid conduit up to its center was to have a heating element protrude into the fluid conduit. For this reason, the above-mentioned means have conventionally been used.

Problems to be Solved by the Invention In such conventional fluid heating devices, a heating element is arranged in the fluid conduit in addition to the rectifying grid, so it is difficult to efficiently (rectify) the flow of fluid in the fluid conduit. In other words, when attempting to heat the fluid sufficiently, the heating element became large, which disturbed the flow of the fluid and reduced the effectiveness of the rectifying grid.

The present invention solves the above problems and aims to provide a fluid heating device having an effective rectification function.

Means for Solving the Problems In order to achieve the above objects, the present invention provides a fluid conduit made of metal, a coil layer attached to an outer wall of the fluid conduit, and a position inside the fluid conduit facing the coil layer. It consists of a metal rectifier grid attached to the

Function: With the above-described configuration, the present invention generates magnetic lines of force in the coil layer, thereby making the rectifying grid and the fluid conduit itself a heating element, so that effective rectification can be achieved without disturbing the flow of fluid in the fluid conduit. , and can sufficiently heat the fluid.

EXAMPLE Hereinafter, an example of the present invention will be described with reference to FIG.

As shown in the figure, the rectifying grid 4 is formed of a metal plate, and its outer shape is sized and shaped to fit with the inner surface of the fluid conduit 5. Further, the central axes of the respective grid cores are arranged parallel to the central axis of the fluid conduit. The fluid conduit 5 containing this rectifying grid 4 is also made of metal. A coil layer 7 in which coils 6 are combined is disposed on the outer wall of the fluid conduit 5 at a position facing the rectifying grid 4 .

The operation in the above configuration will be explained. When a current is passed through the coil 6, the coil layer 7 generates magnetic lines of force. Since the rectifying grid 4 and the fluid conduit 4 are made of metal, they themselves become heating elements due to the lines of magnetic force, so that the fluid passing through them is heated and rectified.

As described above, according to the electromagnetic induction heating type fluid heating device having a rectification function according to the embodiment of the present invention, the coil layer 7 is arranged on the outer wall of the metal fluid conduit 5 containing the metal rectification grid 4. By generating magnetic lines of force in this coil layer 7, the rectifying grid 4 and the fluid conduit 5 can themselves be used as heating elements. Therefore, the fluid flowing inside the fluid conduit 5 can be heated to a substantially uniform temperature distribution, and since there can be no protruding parts other than the rectifying grid inside the fluid conduit 5, the fluid flowing inside the fluid conduit 5 can be heated sufficiently. and effective rectification.

Note that there is also a means of using a honeycomb shape as the rectifying grid 4 in the configuration of the above embodiment.

Effects of the Invention As is clear from the above embodiments, according to the present invention, a coil layer is arranged on the outer wall of a metal fluid conduit containing a metal rectifying grid, and by generating magnetic lines of force with this coil layer, The rectifier and fluid conduit can themselves be heating elements. Therefore, the fluid flowing within the fluid conduit can be heated to a substantially uniform temperature distribution. Furthermore, since it is possible to eliminate any protruding parts other than the rectifying grid within the fluid conduit,
The fluid flowing within the fluid conduit can be sufficiently heated and effectively rectified.

As described above, according to the present invention, it is possible to provide an electromagnetic induction heating type fluid heating device having a rectifying function.

[Brief explanation of drawings]

FIG. 1 is a cross-sectional perspective view showing the internal structure of a fluid heating device according to an embodiment of the present invention, and FIG. 2 is a cross-sectional perspective view showing the internal structure of a conventional fluid heating device. 4... Rectifier grid, 5... Fluid conduit, 7
・・・・・・Coil layer.

Claims (1)

[Claims] A fluid heating device comprising a metal fluid conduit, a coil layer attached to an outer wall of the fluid conduit, and a metal rectifier grid attached at a position inside the fluid conduit opposite to the coil layer.