JPH0917555A - Heater for piping - Google Patents

Abstract

PURPOSE: To simply/and easy mount a heater to piping a pipe by interposing an end part closing plate in metal plates arranged opposite to the pipe and between the metal plate and the piping, adhering an external surface of the metal plate with a heater, and covering the heater and the external surface of the metal plate with a heat insulating material. CONSTITUTION: A pair of U-shaped metal plates 1 with its inner side surface treated for enhancing radiation efficiency are arranged opposite to both side of piping 2 and an end part closing plate 3 composed of heat insulating material and elastic material is interposed between each metal plate 1 and the piping 2, in both end parts of each metal plate 1. In addition, to a surface-shaped heater 4 is adhered to an outer side surface of each metal plate 1, to surround an outer surface of the heater 4 and an exposed surface of the metal plate 1 by a sponge-shaped heater insulator 5. By heating element 6a, 6b thus formed, the piping 2 is interposed and fastened by a tightening band 7, to perform mounting in the piping 2. In this way, in a heating heater for a pipe, a surface area of the metal plate 1 can be sufficiently enlarged, to lengthen the life of the heater, and a piping temperature can be uniformly obtained.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heating heater for piping, and more particularly to a heating heater for piping which comprises a heating element for holding the piping.

[0002]

2. Description of the Related Art For example, it is necessary to constantly maintain a pipe at a desired constant temperature so as not to be liquefied due to low temperature in a pipe made of ammonia gas or the like.

Conventionally, when heating a pipe, a linear or belt-shaped heater is wound or attached to the pipe and fixed with a tape or wire to heat the pipe.

[0004]

Therefore, in order to clean the inside of the pipe due to clogging of the pipe, if the heater is removed, it is impossible to use the heater again, and each time a new heater is wound around the pipe. Since it is attached or attached and fixedly attached with a tape or a wire, there is a disadvantage that a large loss is required in terms of time and cost, and that the pipe temperature cannot be made uniform due to uneven winding of the heater.

That is, in the conventional case, (1) construction takes time. (2) There is no reproducibility in construction. (3) The pipe temperature cannot be made uniform. It has the drawback that problems such as

The present invention has been made to eliminate the above disadvantages.

[0007]

A heater for piping according to the present invention comprises a metal plate arranged to face the pipe, an end closing plate interposed between the metal plate and the pipe, and an outer surface of the metal plate. And a heat insulating material that covers the outer surface of the heater and the metal plate.

Further, the pipe heater according to the present invention is attached to the outer surface of the metal plate, the metal plate arranged to face the pipe, the end closing plate interposed between the metal plate and the pipe. A plurality of heating elements including a heater and a heat insulating material that covers the outer surface of the heater and the metal plate are axially connected to each other.

The metal plate, the heater attached to the outer surface of the metal plate, and the heat insulating material that covers the outer surface of the heater and the metal plate are divided into a plurality of parts.

The metal plate has a U shape, an arc shape, an L shape, or a flat plate shape.

The heater is a sheet heater or a heater formed by casting a cartridge heater in a heat conducting plate.

[0012]

Embodiments of the present invention will be described below with reference to the drawings.

In the present invention, as shown in FIGS. 1 to 4, a pair of U-shaped metal plates 1 which are treated to increase radiation efficiency on their inner surfaces are arranged on opposite sides of a pipe 2, respectively.
At both ends of each metal plate 1, an end closing plate 3 made of a sponge-like heat insulating material or a silicon rubber elastic body is inserted between each metal plate 1 and the pipe 2, and the outer surface of each metal plate 1 is covered. The heater 4 is attached, the outer surface of the heater 4 and the exposed surface of the metal plate 1 are surrounded by a sponge-like heat insulator 5, and the pipe 2 is sandwiched by the heating elements 6a and 6b thus formed. Tighten with the tightening band 7 and attach it to the pipe 2 for installation.

The planar heater 4 has, for example, a pattern of a nichrome wire or a band, and silicon rubber is adhered to one side or both sides thereof, and lead wires 8 are drawn out from both ends of the pattern of the planar heater 4. However, the cartridge heater may be formed by casting in a heat conducting plate such as an aluminum plate.

Further, although the end closing plate 3 can be formed into various shapes adapted to the outer shape of the pipe 2, these are not divided into two, but a slit is formed at one place and the slit is spread at this portion to spread the pipe. You may be able to close it.

The metal plate 1 may have an arc shape, an L shape, or a flat plate shape instead of the U shape. FIG. 5 shows an arc shape.

FIG. 6 shows another embodiment of the heating heater for piping according to the present invention applied to a pipe bent in a crank shape. In this embodiment, in addition to the heating heater 6 including the heating elements 6a and 6b, A heater 1 having an end closing plate 3 at one end thereof formed by a blind plate 9 and having a hole for allowing the pipe 2 to penetrate therethrough in a portion adjacent to the one end.
0, the heaters 6 and 10 are joined to each other in the axial direction so as to surround the crank-shaped pipe 2.

[0018]

As described above, the pipe heater of the present invention has a structure as described above.
The surface area of the heater can be made sufficiently large, and therefore, the wattage per unit area can be reduced to extend the life of the heater, shorten the installation time to be attached to the pipe, and have the reproducibility of the installation, and make the pipe temperature uniform. There are various benefits such as being able to.

[Brief description of the drawings]

FIG. 1 is a front view of a piping heater of the present invention before installation.

FIG. 2 is a front view of the present invention after installation of a heating heater for piping.

FIG. 3 is a perspective view of a heating element.

FIG. 4 is a perspective view after a heater for piping is installed.

FIG. 5 is a front view showing another embodiment of the present invention after installation of a heater for piping.

FIG. 6 is a side view of another embodiment of the present invention in which a plurality of pipe heating heaters are attached and installed on a pipe.

[Explanation of symbols]

 1 Metal Plate 2 Piping 3 End Blocking Plate 4 Sheet Heater 6 Sponge-like Heat Insulator 6 Heating Heater 6a Heating Element 6b Heating Element 7 Tightening Band 8 Lead Wire 9 Blind Plate 10 Heating Heater

Claims (9)

[Claims] 1. A metal plate facing a pipe, an end closing plate inserted between the metal plate and the pipe, a heater attached to the outer surface of the metal plate, and a heater and a metal plate. A heater for pipes, characterized by comprising a heat insulating material covering the outer surface. 2. A metal plate arranged to face the pipe, an end portion blocking plate inserted between the metal plate and the pipe, a heater attached to the outer surface of the metal plate, and a heater and a metal plate A heating heater for pipes, wherein a plurality of heating elements each comprising a heat insulating material covering an outer surface are axially connected to each other. 3. The metal plate, the heater adhered to the outer surface of the metal plate, and the heat insulating material covering the outer surfaces of the heater and the metal plate are divided into a plurality of parts. The heating heater for piping according to 1 or 2. 4. The heater for pipes according to claim 1, wherein the metal plate is U-shaped. 5. The heating heater for piping according to claim 1, wherein the metal plate has an arc shape. 6. The heater for pipes according to claim 1, wherein the metal plate is L-shaped. 7. The heater for pipes according to claim 1, wherein the metal plate has a flat plate shape. 8. The heating heater for piping according to claim 1, 2, 3, 4, 5, 6 or 7, wherein the heater is a planar heater. 9. The heating heater for piping according to claim 1, wherein the heater is formed by casting a cartridge heater in a heat guide plate.