JP2593510Y2 - Insulation equipment - Google Patents

Description

[Detailed description of the invention]

[0001]

INVENTION The present invention relates to a tube with a valve or cock provided plumbing to transport fluid, the tubular
The inner structure has at least an arc shape that covers along the shape
That a heat insulation device, in said tube, freezing of the fluid, crystallization, relates insulation device that can prevent the increase in viscosity and the like.

[0002]

2. Description of the Related Art Water, water vapor,
2. Description of the Related Art Fluids such as air, solvents, resin liquids, and chemical liquids are transported by piping. However, depending on the type of the fluid to be transported, in a cold season such as winter or at night, the fluid may freeze, crystallize, increase in viscosity, etc., making transport difficult,
In particular, such a phenomenon is remarkable in a pipe provided with a valve or a cock provided in the pipe.

Therefore, various methods for keeping the temperature of these pipes have been conventionally proposed. Specifically, for example, there is a method of using a pipe with a jacket, flowing a heat medium such as steam through the jacket to keep the temperature, or a method of winding a string-shaped heating element such as a nichrome wire having an electric heating property around the pipe. Are known. However, these methods are expensive in construction cost and cause an economic problem in implementation, and therefore, generally, a method of extracting fluid from a piping system in cold weather such as winter or nighttime is adopted. Is the current situation. In the method of removing the fluid from such a piping system, there is no problem as long as the fluid can be completely removed, but the adhesion liquid or the like usually remains in a pipe with a valve or a cock, and the adhesion liquid freezes, The use of a valve or a cock becomes impossible due to crystallization, increase in viscosity, and the like, and furthermore, there is a drawback that the pipe is ruptured or broken.

In order to solve such a drawback, there has been proposed a heat retaining device which covers a tube portion with a bulb with a box having a light of 20 to 40 W provided therein and keeps heat by the heat of the light. However, in the heat retention device, it is necessary to provide a space for accommodating a lamp, and there is a disadvantage that the device itself becomes bulky.

Further, a conventionally proposed method of covering a tube with a valve or a cock is to cover with glass wool, urethane foam, styrofoam or the like, and fix the outside by winding it with tinplate. At present, no consideration has been given to making it removable.

[0006]

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to prevent freezing, crystallization, viscosity rise, and the like of a fluid in a pipe provided with a valve or a cock provided in a pipe for transporting the fluid with low energy. It is an object of the present invention to provide a heat retaining device that can be detached from a valve or a tube with a cock.

[0007]

According to the present invention, at least an arcuate shape which covers a pipe with a valve or a cock provided in a pipe for transporting fluid along the pipe shape is provided.
A heat retaining device having a partial structure, wherein the device has a shape
Is formed of a non-flexible material that holds a valve, has a connection portion that can be attached to and detached from a valve or a pipe with a cock, and is coated with a heating resistor paint having a metal plating powder.
And to form, thermal insulation device characterized by having a planar heating portion which generates heat inside the instrument is provided by energization.

[0008] In the present invention, the planar heating portion is made of a known metal.
To apply paint for heating resistor with plating powder
Although it is not particularly limited as long as it is a planar heating element formed from the above , in particular, the average diameter is 5 to 100 parts by weight of the resin solid content described in JP-A-3-145090.
A surface formed by applying a coating for a heating resistor such as a coating containing 40 to 150 parts by weight of a flat metal plating powder having a thickness of 100 μm and a thickness of 0.01 to 20 μm directly on at least a part of the inner wall of the heat insulation device. A heating element or the heat-generating resistor paint is coated on a substrate made of, for example, an insulated metal, glass, resin, glass epoxy or the like, and a sheet heating element or the heat-generating resistor paint is applied to a film such as a polyester film or a polyimide film. A preferred example is a sheet-like heating element in which a material is coated and the coated film material is adhered to the substrate. Further, an insulating layer made of various plastic film materials; urethane-based, silicon-based sealing materials, or the like may be provided on the surface of the planar heating section. Further, the insulating layer may be provided with various ceramic powders such as zirconia. By mixing an infrared radiator, far infrared rays can be emitted.

[0009] Materials for forming the present invention the insulation instrument, Ri processable der in shape covering the tube with a valve or cock, its
May be Re material der inflexible shape of is maintained, for example foamed polyethylene, foamed polystyrene, unsaturated polyesters, plastics material such as polypropylene; wood,
Ceramic, pottery, metal or natural or synthetic rubber materials can be mentioned.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to the drawings, but the present invention is not limited to these embodiments.

In FIG. 1, reference numeral 10 denotes a pipe with a valve provided in a pipe for transporting a fluid, and reference numeral 20 denotes a heat retaining device of the present invention.

The pipe 10 with a valve comprises a pipe 11 for connecting to a pipe for transporting a fluid, and a valve opening / closing lever 12 connected to the upper center of the pipe 11. A valve (not shown) for controlling the flow of the fluid by operating the lever 12 is provided therein.

The warming device 20 is provided with a tube 10 having the valve.
In order to cover the pipe, the heat retaining members 21a and 21b made of foamed polyethylene each having an internal structure processed along the outer shape on one side when the pipe 10 with a valve is vertically split,
Opposing convex portions 22a and 22b and concave portions 23a and 23, which are connecting portions provided along the upper side wall and the lower side wall (see FIG. 2) of the heat retaining members 21a and 21b, respectively.
b, and a valve opening / closing lever 12 so that both ends of a pipe 11 constituting the pipe 10 with a valve can be connected to a pipe for transporting a fluid.
In order to be able to operate the device, a total of three holes are provided on the side wall and the upper surface of the heat retaining device 20 formed by the heat retaining members 21a and 21b.

The heat insulating members 21a and 21b are similar members having an internal structure in which the concavo-convex portions as the connection portions are provided so as to correspond to each other. explain.

In FIG. 2, the center of the inner wall of the heat retaining member 21a holds a side portion of a sheet-like heat generating substrate 30 obtained by applying a paint for heat generating resistance after applying a copper foil tape to a slate plate. Claw portions 24a and 24b, and the planar heat generating substrate 30
Claw portions 25a and 25b for holding the bottom of the sheet heating board 30 are provided.
The heat generating member 21a can be held by inserting it into the 4b, 25a, and 25b, and can be easily replaced by pulling the planar heat generating substrate 30 upward. Further, a hole 26 for connecting the cord 31 connected to the sheet heating substrate 30 to an external power supply (not shown) is provided in the center of the bottom surface of the heat retaining member 21a. At this time, when a paint for heat generation resistance is directly applied to a desired portion of the inner wall of the heat retaining member 21a and an electrode for energization is installed, the claw portion does not need to be provided, and the position of the hole 26 is There is no particular limitation as long as energization is possible.
Further, as shown in FIG. 2, when the planar heat generating substrate 30 is not formed on the entire inner surface of the heat retaining member 21a, the surface of the heat insulating member 21a is further reduced by utilizing the heat reflected from the tube 10 with the bulb. Heat insulating member 2 around the heat generating substrate 30
A heat reflecting material such as an aluminum foil may be provided on the inner surface of the la.

FIG. 3 shows an example of the planar heating substrate 30.

In FIG. 3, a planar heating substrate 30 is composed of two strip-shaped heating resistor coatings 32 applied on the upper surface of a slate plate 31 and copper formed vertically on both ends of the heating resistor coating 32. Each of the copper foil tapes 33b and 33c is connected to a cord 34 for energization, and the energization of the cord 34 from an external power supply (not shown). Thus, the two heating resistance paints 32 can generate heat. At this time, the power supply may be either DC or AC, and may be connected to a control device for controlling the heat generation temperature to a desired temperature. To apply the strip-shaped paint 32 for heat resistance, first apply a primer having a sealing and water absorption preventing effect to the slate plate 31, and then apply a copper foil tape (33a, 33b, 33).
After adhering c) to a desired position, the heating resistor paint 32 can be applied by airless spray and baked and dried. The surface of the slate plate 31 provided with the heating resistor paint 32 and the copper foil tape is coated with an overcoat paint (insulating layer) (not shown) having insulation and waterproofness.

Further, convex portions (22a, 22b) provided on the upper side wall and the lower side wall of the heat retaining member 21a shown in FIG.
The shape of the recesses (23a, 23b) is
And 21b can be detachably mounted,
There is no particular limitation. Instead of providing the uneven portion, a connecting portion may be provided by installing a magic tape, a magnet, or the like. Further, as shown in FIG. 4, the concave and convex portions (22) serving as connecting portions are provided only on the upper side walls of the heat insulating members 21c and 21d.
c, 22d, 23c, 23d), and the bottom surfaces of the heat retaining members 21c and 21d can be hinged so that the concave and convex portions can be detachably moved.

[0019]

Advantages of the Invention The heat keeping apparatus of the present invention has a connecting portion that can be detachably attached to a valve or a pipe with a cock provided in a pipe for transporting fluid, and a planar heating section for keeping heat. Freezing of fluid, crystallization, increase in viscosity, etc. can be effectively prevented in the space of, for example, in a water supply pipe for quarry washing in a mine in a cold region, an air pipe, etc., a valve or a cock insulation device with a cock. Is extremely effective. In addition, as a material for forming the planar heating portion, a known heating resistance paint is used, and when the planar heating portion is formed by directly applying to the inner wall of the heat retaining device, the tube shape with various valves or cocks may be used. Thus, the planar heat generating portion can be easily formed.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a state in which a heat retaining device according to an embodiment of the present invention is installed in a pipe with a valve connected to a pipe for transporting a fluid.

FIG. 2 is a perspective view illustrating an internal structure of the heat retaining member according to the embodiment of the present invention.

FIG. 3 is a plan view showing a planar heating substrate used in the embodiment of the present invention.

FIG. 4 is a perspective view of a heat retaining device showing another embodiment in which a connecting portion before a planar heat generating portion is installed is different.

──────────────────────────────────────────────────続 き Continuing on the front page (72) Hideaki Nogami, creator of the Meishin Dormitory, 4-13-13 Nishioi, Shinagawa-ku, Tokyo (56) References JP-A-54-157371 (JP, A) JP-A-53-181090 (JP, U) (58) Fields investigated (Int. Cl. ⁶ , DB name) F16L 59 / 16

Claims (1)

(57) [Scope of request for utility model registration] Claims 1. A valve having a valve or a cock provided on a pipe for transporting a fluid, the pipe having a valve or a cock provided along the pipe shape.
Both are warming appliances having an arc-shaped internal structure ,
The device is formed of an inflexible material that retains its shape
Heat-generating resistor having a connection portion that can be attached to and detached from a valve or a pipe with a cock, and having a metal plating powder.
A heat-insulating device characterized by having a planar heat-generating portion , which is formed by painting with a body paint and generates heat when energized, inside the device.