JP2007278650A - Hot water supplier - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a hot water supplier capable of improving operability by improving thermal insulation performance, reducing cost of a molded thermal insulating material and improving its strength. <P>SOLUTION: The hot water supplier has a recessed part for a can body in a shape along an outline of a hot water storage can body 1. While invariably keeping the thickness of the recessed part for the can body, equipped with a thermal insulation material (a front part ) 3 having a respectively independent air receiver part which is formed by forming lightening holes for front and back sides alternatively, an air layer is formed by the air receiver part and thermal retention/insulation performance of the hot water storage can body 1 is improved. As a thermal insulation material (an upper part) 7 and a thermal insulation material (a lower part ) 8 are additionally provided at positions where a hot water supply pipe 5 and a water supply pipe 6 are formed, operability is improved. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a heat insulation structure of a hot water storage can body of a hot water storage type hot water supply apparatus such as a heat pump water heater or an electric water heater.

Conventionally, in this type of hot water storage type hot water supply apparatus, for the purpose of heat insulation and heat insulation of a hot water storage can that stores hot water heated by an external heating means such as a heat pump or heats water by an internal electric heater and stores it as hot water, The hot water storage can body was surrounded by a multilayer molded heat insulating material (see, for example, Patent Document 1).
JP 2004-197960 A

  However, in the conventional configuration, since the molded heat insulating material is multi-layered, the processing and molding are complicated and costly, and the strength of the molded heat insulating material itself is reduced due to peeling of each layer. It was.

  Also, in order to enclose the outer wall of the hot water storage can near the connection port for piping and a part of the piping, the molded heat insulating material must have a recess for piping, which makes processing and molding complicated. In addition to the high cost, there is a problem that workability during manufacturing and assembly is reduced.

  In order to solve the above-described conventional problems, a hot water supply apparatus according to the present invention includes a hot water storage can body to which a plurality of pipes are connected, an exterior body that stores the hot water storage can body, and a molded heat insulating material that surrounds the hot water storage can body. The molded heat insulating material is hollowed out from the outside and inside while leaving a certain thickness or more in a plurality of areas of the can body depressions and the can body depressions having a shape along the outline of the hot water storage can body. And a recess having a space with the hot water storage can body and an outer recess having a space with the exterior body.

  With this configuration, a space portion is formed between the hot water storage can body and the exterior body and the molded heat insulating material, and the heat insulating performance is improved by the space portion, and the same heat insulating effect can be obtained without forming the molded heat insulating material in a multilayer shape. Therefore, the cost can be reduced and the strength of the molded heat insulating material can be improved.

  The hot water supply apparatus of the present invention can improve the heat insulating performance, reduce the cost and improve the strength of the molded heat insulating material, and improve workability.

  1st invention is equipped with the hot water storage can which the some piping connected, the exterior body which accommodates the said hot water storage can, and the molded heat insulating material which encloses the said hot water storage can, The can body recess having a shape along the outline of the hot water storage can body, and the hot water storage can body by removing a plurality of areas of the recess for the can body from outside and inside while leaving a certain thickness or more. It has the structure which has the inner side recessed part which forms a space between, and the outer side recessed part which forms a space between exterior bodies.

  By forming the space portion, the heat insulating performance is improved, and the same heat insulating effect can be obtained without forming the molded heat insulating material in a multilayer form, and the cost can be reduced and the strength of the molded heat insulating material can be improved.

  In the second invention, in particular, in the first invention, the inner recesses and the outer recesses provided in the molded heat insulating material are alternately arranged on the front and back of the molded heat insulating material.

  This can prevent a decrease in strength of the molded heat insulating material at an equivalent cost and weight.

  In a third aspect of the invention, particularly in the first or second aspect of the invention, the molded heat insulating material is composed of at least a front heat insulating material and a rear heat insulating material. On the other hand, it was set as the structure enclosed with the material different from the said shaping | molding heat insulating material.

  This eliminates the need for complicated processing and molding in order to form the depression for piping, thereby reducing costs and preventing workability from being lowered.

  In addition, the fourth aspect of the invention is such that, in the third aspect of the invention, the outer wall of the hot water storage can near the pipe connection port and a part of the pipe are enclosed by a material made of polyurethane.

  As a result, an equivalent heat insulating effect can be obtained without causing a decrease in workability and the like, which was a problem with conventional planar heat insulating materials such as glass wool.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

(Embodiment)
FIG. 1 shows a view of a hot water supply apparatus according to the first embodiment of the present invention.

  In FIG. 1, a hot water storage can body 1 is enclosed along the outline of the hot water storage can body 1 by a heat insulating material (rear part) 2 and a heat insulating material (front part) 3. ing. The heat insulating material (rear part) 2 and the heat insulating material (front part) 3 are formed of a foamed material such as expanded polypropylene or expanded polystyrene.

  A hot water supply pipe 5 is connected from the upper part of the hot water storage can body 1, and the portion is covered with a heat insulating material (upper part) 7. A water supply pipe 6 is connected from the lower part of the hot water storage can body 1, and the part is covered with a heat insulating material (lower part) 8. The heat insulating material (upper part) 7 and the heat insulating material (lower part) 8 are made of glass wool or the like and are made of a material different from the heat insulating material (rear part) 2 and the heat insulating material (front part) 3.

  The configuration of the heat insulating material (front part) 3 will be described in detail with reference to FIG. Inside the heat insulating material (front part) 3, concave air reservoirs 9 are provided at regular intervals. Further, a similar air reservoir 9 is provided outside the heat insulating material (front portion) 3. The air reservoirs 9 provided on the inner side and the outer side of the heat insulating material (front part) 3 are alternately arranged on the inner side and the outer side, and the heat insulating material (front part) 3 maintains a constant thickness. ing. Although not shown, the air reservoir 9 is also formed in the configuration of the heat insulating material (rear part) 2 in the same manner as the structure of the heat insulating material (front part) 3 described above.

The shape, size, and position of the air reservoir 9 are not limited, and may be within a range that can sufficiently guarantee the heat retention / heat insulation performance and strength, which are the intended purposes of the molded heat insulating material. For example, as shown in FIG. 3, the shape of the air reservoir 10 may be a quadrangular shape, and may be provided inside or outside the heat insulating material (front part) 3 so as to form a lattice, or as shown in FIG. The shape 10 may be a vertically long quadrilateral and may be provided inside or outside the heat insulating material (front portion) 3 so as to form a lattice shape. Here, in FIG. 3, FIG. 4, it arrange | positions so that it may be alternated respectively inside and outside, and it cannot be overemphasized that the heat insulating material (front part) 3 maintains fixed thickness.

  As described above, according to the present embodiment, the air reservoir portion 9 is provided inside the heat insulating material (rear portion) 2 and the heat insulating material (front portion) 3 that surround the hot water storage can body 1. 9, an air layer is formed between the hot water storage can 1 and the heat insulating material (rear part) 2 or the heat insulating material (front part) 3, and the heat insulating effect is improved by the air layer.

  Further, since the air reservoir 9 is provided outside the heat insulating material (rear part) 2 and the heat insulating material (front part) 3, air is interposed between the heat insulating material (rear part) 2 or the heat insulating material (front part) 3 and the exterior body 4. A layer is formed, and the heat insulation effect is improved by the air layer, and it is difficult to be influenced by the external ambient temperature.

  Further, since the air reservoirs 9 are alternately arranged on the inside and outside of the heat insulating material (rear part) 2 and the heat insulating material (front part) 3, the predetermined strength is maintained by maintaining a certain thickness. Can do.

  In addition to the heat insulating material (rear part) 2 and the heat insulating material (front part) 3, a heat insulating material (upper part) 7 and a heat insulating material (lower part) 8 are provided at locations where the hot water supply pipe 5 and the water supply pipe 6 are formed. Therefore, even a shape that is difficult to process near the pipe can be handled. Furthermore, the heat insulating material (upper part) 7 and the heat insulating material (lower part) 8 are made of a material different from that of the heat insulating material (rear part) 2 and the heat insulating material (front part) 3, thereby facilitating further processing. The property is also significantly improved.

  As described above, the hot water storage apparatus according to the present invention can improve the heat insulation and heat insulation properties of the hot water storage can body, and can perform efficient work without man-hours during manufacturing and assembly.

Configuration schematic diagram of hot water storage can body in an embodiment of the present invention The block diagram of the molding heat insulating material in embodiment of this invention The block diagram by another form of the molding heat insulating material in embodiment of this invention The block diagram by another form of the molding heat insulating material in embodiment of this invention

Explanation of symbols

1 Hot water storage can body 2 Heat insulation material (rear part)
3 Insulation (front)
4 exterior body 5 hot water supply pipe 6 water supply pipe 7 heat insulating material (upper part)
8 Insulation (lower part)
9, 10, 11 Air reservoir

Claims (4)

A hot water storage can body connected to a plurality of pipes, an exterior body for housing the hot water storage can body, and a molded heat insulating material for enclosing the hot water storage can body, wherein the molded heat insulating material is an outer shell of the hot water storage can body Forming a space between the hot water storage can body by hollowing out from the outer side and the inner side while leaving a certain thickness or more in a plurality of areas of the concave portion for the can body and a plurality of areas of the concave portion for the can body The hot water supply apparatus which has an outer side recessed part which forms a space between the inner side recessed part to perform and the said exterior body. The hot water supply apparatus according to claim 1, wherein the inner recesses and the outer recesses provided in the molded heat insulating material are alternately arranged on the front and back surfaces of the molded heat insulating material. The molded heat insulating material is composed of at least a front heat insulating material and a rear heat insulating material, and encloses the outer wall of the hot water storage can near the connection port for piping and a part of the piping with a material different from the molded heat insulating material. The hot water supply apparatus according to claim 1 or 2. The hot water supply apparatus according to claim 3, wherein the outer wall of the hot water storage can near the pipe connection port and a part of the pipe are enclosed by a material made of polyurethane.