JP2014066368A - Tank heat insulation structure and hot water storage tank device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a tank heat insulation structure and a hot water storage tank device which are capable of downsizing an installation space for a heat insulation member.SOLUTION: A tank heat insulation structure for heat-insulating a first and second tanks arranged almost in parallel, includes first and second formed heat insulation materials (21, 22) covering the first tank in a circumferential direction and each having semi-circular arc shape in a cross section, and third and fourth formed heat insulation materials (23, 24) covering the second tank in a circumferential direction and each having semi-circular arc shape in a cross section. The first and third formed heat insulation materials (21, 23) are pressed by the first and second tanks and the second and fourth formed heat insulation materials (22, 24) between the first and second tanks in the circumferential direction.

Description

  The present invention relates to a tank heat insulating structure and a hot water storage tank apparatus, and more particularly to a tank heat insulating structure for insulating a hot water storage tank and a hot water storage tank apparatus using the same.

  Conventionally, as a tank heat insulating structure, there is one in which two hot water storage tanks are covered with a molded heat insulating material (for example, see JP 2010-112608 A (Patent Document 1)). In the tank heat insulating structure, heat dissipation from the hot water storage tank is prevented by covering the two hot water storage tanks with the molded heat insulating material.

  By the way, in the said tank heat insulation structure, since the size of the shaping | molding heat insulating material of the W-shaped cross section which covers so that the side of two hot water storage tanks may be pinched | interposed among the some shaping | molding heat insulating materials which cover two hot water storage tanks, it is a manufacturing stage. In the case of storing a large number of molded heat insulating materials having a W-shaped cross section, there is a problem that a large storage space is required even if they are superposed on each other.

JP 2010-112608 A

  Then, the subject of this invention is providing the tank heat insulation structure and hot water storage tank apparatus which can make the storage space of a heat insulation member small.

In order to solve the above problems, the tank heat insulating structure of the present invention is
A tank heat insulating structure for insulating the first and second tanks arranged substantially parallel to each other,
First and second shaped heat insulating materials having a semicircular cross-sectional shape covering the first tank in the circumferential direction;
A third and fourth molded heat insulating material having a semicircular cross-sectional shape covering the second tank in the circumferential direction;
The first and third molded heat insulating materials are pressed in the circumferential direction between the first and second tanks by the first and second tanks and the second and fourth molded heat insulating materials.

  According to the above configuration, the first and third molded heat insulating materials are pressed between the first and second tanks in the circumferential direction by the first and second tanks and the second and fourth molded heat insulating materials. Since the 1st-4th shaping | molding heat insulating material is a magnitude | size surrounding the half of each outer periphery of a 1st, 2nd tank, the storage space of a heat insulation member can be made small by overlapping each other. Moreover, since the 1st-4th shaping | molding heat insulating material does not spread at the time of an assembly, workability | operativity can be improved.

Moreover, in the tank heat insulation structure of one embodiment,
The first molded heat insulating material and the third molded heat insulating material are arranged to be pointed around an intermediate point between the first and second tanks, and the second molded heat insulating material and the fourth molded heat insulating material. The material is arranged to be pointed around the midpoint between the first and second tanks,
Convex portions protruding radially outward are provided at one ends of the semicircular arc sections of the first and third molded heat insulating materials,
One end of the semicircular arc shape of the cross section of the second and fourth molded heat insulating materials is engaged in the circumferential direction with the convex portion of the first and third molded heat insulating materials.

  According to the above-described embodiment, the second and fourth molded heat insulating materials are formed at one end of the semicircular cross-sectional shape of the first and third molded heat insulating materials with respect to the convex portion provided so as to protrude radially outward. By engaging one end of the semicircular cross-sectional shape in the circumferential direction, it is possible to fix one end of the first and third molded heat insulating materials and one end of the second and fourth molded heat insulating materials. In addition, the first and second molded heat insulating materials can be made the same shape member, and the third and fourth molded heat insulating materials can be made the same shape member. The score can be reduced.

Moreover, in the tank heat insulation structure of one embodiment,
The other end of the semicircular arc shape of the first molded heat insulating material engages the other end of the semicircular arc shape of the second molded heat insulating material in the radial direction,
The other end of the semicircular cross-sectional shape of the third shaped heat insulating material is radially engaged with the other end of the semicircular cross sectional shape of the fourth shaped heat insulating material.

  According to the embodiment, the other end of the semi-circular cross-sectional shape of the first molded heat insulating material is engaged with the other end of the semi-circular cross-sectional shape of the second formed heat insulating material in the radial direction. It becomes possible to fix the other end of the semicircular cross section and the other end of the semicircular cross section of the second shaped heat insulating material without any gap. Similarly, the cross-sectional semicircular arc shape of the third molded heat insulating material is obtained by engaging the other end of the semicircular arc shape of the third molded heat insulating material in the radial direction with the other end of the semicircular cross sectional shape of the fourth molded heat insulating material. It is possible to fix the other end of the fourth molded heat insulating material and the other end of the fourth semi-circular heat insulating material without a gap. Therefore, the heat insulation performance with respect to the sides of the first and second tanks can be enhanced.

In the hot water storage tank apparatus of the present invention,
Any one of the above tank insulation structures is provided.

  According to the said structure, by providing the said tank heat insulation structure, the storage space of a heat insulation member can be made small and the storage cost of a heat insulation member can be reduced.

  As is apparent from the above, according to the present invention, there is provided a tank heat insulating structure capable of reducing a storage space for a heat insulating member and a hot water storage tank device including the tank heat insulating structure.

FIG. 1 is a perspective view of a hot water storage tank apparatus using a tank heat insulating structure according to an embodiment of the present invention. FIG. 2 is a perspective view showing a state in which the casing of the hot water storage tank device is removed. FIG. 3 is a perspective view showing a state in which the casing, functional parts, piping and the like of the hot water storage tank apparatus are removed. 4 is a perspective view showing a state in which the heat insulating structure is removed from the hot water storage tank apparatus in the state of FIG. 3. FIG. 5 is an exploded perspective view of a heat insulating structure covering the first and second hot water storage tanks of the hot water storage tank apparatus. FIG. 6 is an exploded perspective view of the heat insulating structure with only the front molded heat insulating material removed. FIG. 7 is a top view of the casing and the heat insulating structure of the hot water storage tank apparatus. FIG. 8 is a horizontal sectional view of the heat insulating structure. FIG. 9 is an enlarged view of a main part of the first and second molded heat insulating materials shown in FIG. FIG. 10 is a view for explaining the storage space for the second and third molded heat insulating materials of the heat insulating structure. FIG. 11 is a horizontal sectional view of a heat insulating structure of a comparative example. FIG. 12 is a view for explaining a storage space for the molded heat insulating material of the heat insulating structure of the comparative example.

  Hereinafter, a tank heat insulation structure and a hot water storage tank apparatus according to the present invention will be described in detail with reference to embodiments shown in the drawings.

  FIG. 1 is a perspective view of a hot water storage tank apparatus using a tank heat insulating structure according to an embodiment of the present invention. The hot water storage tank apparatus of this embodiment and the heat pump unit as a heat source apparatus constitute a hot water storage type hot water supply system.

  As shown in FIG. 1, the hot water storage tank apparatus includes a first hot water storage tank 1 as an example of a first tank, a second hot water storage tank 2 as an example of a second tank, and first and second hot water storage tanks. A box-shaped casing 3 in which 1 and 2 are stored is provided. A cover 4 that covers the work opening is attached to the lower side of the front surface of the casing 3 (left side in FIG. 1). Further, legs 5, 5,... For supporting the first and second hot water storage tanks 1, 2 are arranged at the bottom of the casing 3. In this embodiment, the first and second hot water storage tanks 1 and 2 are cylindrical cans, but may be polygonal column cans or the like.

  FIG. 2 shows a state in which the casing 3 of the hot water storage tank device is removed, and the bottom plate 10 is fixed to the legs 5, 5,... Below the first and second hot water storage tanks 1, 2 (shown in FIG. 1). The joint mounting plate 11 is disposed on the front side of the bottom plate 10. An electrical component box 20 is arranged above the joint mounting plate 11.

  FIG. 3 shows a state in which the casing 3, functional parts, piping and the like of the hot water storage tank apparatus are removed. 3, the same components as those in FIG. 2 are denoted by the same reference numerals.

  As shown in FIG. 3, the entire first and second hot water storage tanks 1, 2 erected substantially parallel to each other on the bottom plate 10 are divided into a first molded heat insulating material 21, a second molded heat insulating material 22, A heat insulating structure composed of a 3 molded heat insulating material 23, a fourth molded heat insulating material 24, a front surface molded heat insulating material 25, a top molded heat insulating material 26, a cover molded heat insulating material 27, and a bottom molded heat insulating material 28. Covering. The first to fourth molded heat insulating materials 21 to 24, the front surface molded heat insulating material 25, the top molded heat insulating material 26, the cover molded heat insulating material 27, and the bottom molded heat insulating material 28 are foam molded heat insulating materials such as expanded polystyrene.

  4 shows a state in which the heat insulating structure is removed from the hot water storage tank apparatus shown in FIG. 3, and as shown in FIG. 4, the legs 5 are connected to the lower leg base 5a and the upper side of the leg base 5a. And a tank support portion 5b. The lower sides of the first and second hot water storage tanks 1 and 2 are supported by tank support portions 5b, 5b,... Of the legs 5, 5,.

  In FIG. 4, reference numerals 13 and 13 denote triangular reinforcing plates that reinforce the attachment of the joint mounting plate 11.

  Next, FIG. 5 shows an exploded perspective view of a heat insulating structure that covers the first and second hot water storage tanks 1 and 2 of the hot water storage tank apparatus. As shown in FIG. 5, the horizontal cross section is covered with first and second shaped heat insulating materials 21 and 22 having a semicircular arc shape so as to sandwich the side of the first hot water storage tank 1 (shown in FIG. 4). Moreover, it covers so that the side of the 2nd hot water storage tank 2 (shown in FIG. 4) may be pinched | interposed by the 3rd, 4th shaping | molding heat insulating materials 23 and 24 whose horizontal cross section is semicircular arc shape. Each of the first to fourth molded heat insulating materials 21 to 24 has a semi-cylindrical shape in which a cylinder is divided by a plane along the axial direction.

  Moreover, the top molded heat insulating material 26 is provided with two concave portions 26a and 26b that cover the upper portions of the first and second hot water storage tanks 1 and 2, respectively. A cover molding heat insulating material 27 is attached to the top of the top molding heat insulating material 26. The bottom molded heat insulating material 28 is provided with two concave portions 28a and 28b into which the bottom portions of the first and second hot water storage tanks 1 and 2 are fitted, respectively. The bottom molded heat insulating material 28 is disposed between the first and second hot water storage tanks 1 and 2 and the bottom plate 10 and restrains the lower side of the first and second hot water storage tanks 1 and 2.

  A front molded heat insulating material 25 is attached to the front surfaces of the first and second molded heat insulating materials 21 and 22 that cover the sides of the first hot water storage tank 1.

  As shown in FIG. 6, the front molded heat insulating material 25 is fitted so as to straddle the joint portions on the front side of the first and second molded heat insulating materials 21 and 22 that cover the side of the first hot water storage tank 1. . Specifically, fitting concave portions 21a and 21b are provided on the front surface side of the first molded heat insulating material 21 with a space in the vertical direction, and the fitting concave portions 22a are spaced on the front surface side of the second molded heat insulating material 22 in the vertical direction. 22b. Further, fitting convex portions 25a, 25b, 25c, and 25d are provided at positions facing the fitting concave portions 21a, 21b, 22a, and 22b of the front surface molded heat insulating material 25. The fitting convex portions 25a, 25b, 25c, and 25d of the front molded heat insulating material 25 are fitted into the fitting concave portions 21a and 21b of the first molded heat insulating material 21 and the fitting concave portions 22a and 22b of the second molded heat insulating material 22, respectively. By doing so, the front molded heat insulating material 25 engages the first and second molded heat insulating materials 21 and 22 in the circumferential direction and the vertical direction.

  The front molding heat insulating material 25 is provided with an electrical component box 20 (shown in FIG. 2), functional parts, piping, and the like. Here, functional parts are valves, heat exchangers, and the like, and piping is water supply piping, hot water supply piping, and the like.

  FIG. 7 shows a top view of the casing 3 and the heat insulation structure of the hot water storage tank apparatus, with the top plate of the casing 3 being removed. FIG. 8 shows a horizontal sectional view of the heat insulating structure.

  As shown in FIGS. 7 and 8, the first molded heat insulating material 21 and the third molded heat insulating material 23 are arranged to be pointed around an intermediate point between the first and second hot water storage tanks 1 and 2. Moreover, the 2nd shaping | molding heat insulating material 22 and the 4th shaping | molding heat insulating material 24 are arrange | positioned at the point object centering on the intermediate point between the 1st, 2nd hot water storage tanks 1 and 2. FIG. And the convex parts 31 and 33 which protrude to a radial direction outward are provided in the end of the semicircle shape of the cross section of the 1st, 3rd shaping | molding heat insulating materials 21 and 23. As shown in FIG. One end of the semicircular arc shape of the cross section of the second molded heat insulating material 22 is engaged with the convex portion 33 of the third molded heat insulating material in the circumferential direction. One end of the semicircular arc shape of the cross section of the fourth molded heat insulating material 24 is engaged with the convex portion 31 of the first molded heat insulating material in the circumferential direction.

  As described above, the second and fourth portions of the first and third molded heat insulating materials 21 and 23 are protruded outwardly in the radial direction at one end of the semicircular sectional shape. One end of the semicircular arc shape of the cross section of the molded heat insulating materials 22 and 24 is engaged in the circumferential direction, whereby one end of the first and third molded heat insulating materials 21 and 23 and one end of the second and fourth molded heat insulating materials 22 and 24. And can be fixed. Further, the first and second molded heat insulating materials 21 and 22 can be formed into the same shape member, and the third and fourth formed heat insulating materials 23 and 24 can be formed into the same shape member. It can be realized by type and the number of parts can be reduced.

  FIG. 9 shows an enlarged view of the main part of the first and second molded heat insulating materials 21 and 22 shown in FIG. 8, and as shown in FIG. On the other end, a convex portion 41 protruding toward the second molded heat insulating material 22 is provided on the inner peripheral side. A step portion is formed in the first molded heat insulating material 21 along the vertical direction by the convex portion 41. Moreover, the convex part 42 which protrudes toward the 1st shaping | molding heat insulating material 121 side is provided in the other end of the cross-sectional semicircular arc shape of the said 2nd shaping | molding heat insulating material 22 in the outer peripheral side. A step portion is formed in the second molded heat insulating material 22 along the vertical direction by the convex portion 42. The step part by the convex part 41 of this 1st shaping | molding heat insulating material 21 and the step part by the convex part 42 of the 2nd shaping | molding heat insulation material 22 are engaging in radial direction. That is, the other end of the semicircular arc shape of the first molded heat insulating material 21 is engaged with the other end of the semicircular arc shape of the second molded heat insulating material 22 in the radial direction.

  Similarly, in the third and fourth molded heat insulating materials 23 and 24, the other end of the semicircular arc shape of the fourth molded heat insulating material 22 and 24 is other than the semicircular arc shape of the third molded heat insulating material 23. The end is engaged in the radial direction.

  In the tank heat insulating structure, the first molded heat insulating material 21 shown in FIG. 8 is attached to the first hot water storage tank 1 (shown in FIGS. 1 and 4) and the third molded heat insulating material 23 shown in FIG. 2 Install in hot water storage tank 2 (shown in FIGS. 1 and 4).

  After that, the second molded heat insulating material 22 shown in FIG. 8 is attached to the first hot water storage tank 1 (shown in FIGS. 1 and 4), and the fourth molded heat insulating material 24 shown in FIG. 1. Mount it on (shown in Fig. 4). At this time, one end of the cross-sectional semicircular arc shape of the second molded heat insulating material 22 engages with the convex portion 33 of the third molded heat insulating material in the circumferential direction, and the cross-sectional semicircular arc shape of the fourth molded heat insulating material 24. Is engaged with the convex portion 31 of the first molded heat insulating material in the circumferential direction, so that the engaging portions of the first to fourth molded heat insulating materials 21 to 24 become the first and second hot water storage tanks 1 and 2. Pressed between two. Thereby, the 1st-4th shaping | molding heat insulating materials 21-24 are fixed to the 1st, 2nd hot water storage tanks 1 and 2, and workability | operativity when attaching the 1st-4th shaping | molding heat insulating materials 21-24 improves.

  As described above, the other end of the semicircular arc shape of the first molded heat insulating material 21 is engaged with the other end of the semicircular arc shape of the second molded heat insulating material 22 in the radial direction. It is possible to fix the other end of the semicircular arc shape of the cross section and the other end of the semicircular arc shape of the second shaped heat insulating material 22 without any gap, and the other end of the semicircular arc shape of the third shaped heat insulating material 23 is fixed. A gap between the other end of the third shaped heat insulating material 23 and the other end of the fourth shaped heat insulating material in the semicircular cross section is obtained by engaging the other end of the fourth shaped heat insulating material 24 in the semicircular arc shape in the radial direction. It becomes possible to fix without. Therefore, the heat insulation performance with respect to the side of the first and second hot water storage tanks 1 and 2 can be enhanced.

  FIG. 10 is a view for explaining the storage space for the second and third molded heat insulating materials 22 and 23 (A and B in FIG. 10) of the heat insulating structure. In FIG. 10, when the molded heat insulating materials A and B are stood and stored in the storage space, the molded heat insulating materials A and B are overlapped while being rotated every 45 °. As a result, the molded heat insulating materials A and B (a total of eight) can be placed in a minimum space represented by a circle indicated by a dotted line.

  On the other hand, FIG. 11 shows a horizontal sectional view of a heat insulating structure of a comparative example. This comparative example is described for comparison and is not the tank heat insulating structure of the present invention. In FIG. 11, the sides of two hot water storage tanks (not shown) are covered so as to be sandwiched between molded heat insulating materials 101 and 102 (W in FIG. 11) in which two semicircular arc sections are connected.

  FIG. 12 is a diagram for explaining a storage space for the molded heat insulating material of the heat insulating structure of the comparative example. In FIG. 12, when the molded heat insulating material W having a W-shaped cross section is stored upright in the storage space, it is most save to place four molded heat insulating materials W in the storage space represented by the rectangles indicated by dotted lines. Space.

  Therefore, with respect to the storage space for the four molded heat insulating materials W of the comparative example shown in FIG. 12, four molded heat insulating materials A and four molded heat insulating materials B (four molded heat insulating materials W shown in FIG. )), The maximum width can be reduced to save space.

  According to the tank heat insulation structure and the hot water storage tank apparatus having the above-described configuration, the first and second molded heat insulating materials 21 and 22 cover the side of the first hot water storage tank 1 so as to sandwich the third and fourth molded heat insulating materials 23. , 24 so as to sandwich the side of the second hot water storage tank 2 so that the first to fourth molded heat insulating materials 21 to 24 surround half of the outer peripheries of the first and second hot water storage tanks 1, 2. Therefore, the storage space for the heat insulating member can be reduced by overlapping each other when standing up and storing in the storage space. Moreover, since the 1st-4th shaping | molding heat insulating materials 21-24 do not spread at the time of an assembly, workability | operativity can be improved.

  In the above embodiment, the first and second molded heat insulating materials 21 and 22 are members having the same shape, and the third and fourth molded heat insulating materials 23 and 24 are members having the same shape. The heat insulating material may not have the same shape, and the third and fourth molded heat insulating materials may not have the same shape. Even in this case, the storage space for the heat insulating member can be reduced, and the workability during assembly can be improved.

  Moreover, although the said embodiment demonstrated the hot water storage tank apparatus using the tank heat insulation structure which insulates the 1st, 2nd hot water storage tanks 1 and 2 as a 1st, 2nd tank, a tank heat insulation structure is to this. The present invention is not limited to this, and the present invention may be applied to other devices including first and second tanks arranged substantially parallel to each other.

  Moreover, in the said embodiment, although the hot water storage tank apparatus provided with the 1st, 2nd hot water storage tanks 1 and 2 set up substantially parallel mutually was demonstrated, it arrange | positions so that a longitudinal direction may become directions other than an up-down direction. You may apply the tank heat insulation structure of this invention to the made 1st, 2nd tank. For example, if the tank does not require the formation of a temperature gradient in the tank, such as a hot water storage tank, the tank should be placed so that the longitudinal direction is horizontal or the longitudinal direction is diagonal. May be.

  Although specific embodiments of the present invention have been described, the present invention is not limited to the above embodiments, and various modifications can be made within the scope of the present invention.

DESCRIPTION OF SYMBOLS 1 ... 1st hot water storage tank 2 ... 2nd hot water storage tank 3 ... Casing 4 ... Cover 5 ... Leg 5a ... Leg base 5b ... Tank support part 10 ... Bottom plate 11 ... Joint mounting plate 13 ... Triangular reinforcement plate 20 ... Electrical component box 21 ... 1st shaping | molding heat insulating material 22 ... 2nd shaping | molding heat insulation material 23 ... 3rd shaping | molding heat insulation material 24 ... 4th shaping | molding heat insulation material 25 ... Front surface shaping | molding heat insulation material 26 ... Top part shaping | molding heat insulation material 27 ... Cover shaping | molding heat insulation material 28 ... Bottom shaping | molding heat insulation material Material 31,33 ... Convex part 41,42 ... Convex part

Claims (4)

A tank heat insulating structure for insulating the first and second tanks (1, 2) arranged substantially parallel to each other,
First and second shaped heat insulating materials (21, 22) having a semicircular cross-sectional shape covering the first tank (1) in the circumferential direction;
A third and a fourth shaped heat insulating material (23, 24) having a semicircular cross-sectional shape covering the second tank (2) in the circumferential direction;
The first and third molded heat insulating materials (21, 23) are formed by the first and second tanks (1, 2) and the second and fourth molded heat insulating materials (22, 24). A tank heat insulation structure characterized by pressing in the circumferential direction between the tanks (1, 2). In the tank heat insulation structure according to claim 1,
The first molded heat insulating material (21) and the third molded heat insulating material (23) are arranged to be pointed around an intermediate point between the first and second tanks (1, 2), and The second molded heat insulating material (22) and the fourth molded heat insulating material (24) are arranged to be pointed around an intermediate point between the first and second tanks (1, 2),
Protrusions (31, 33) projecting radially outward are provided at one ends of the semicircular arc sections of the first and third molded heat insulating materials (21, 23), respectively.
One end of the semicircular arc shape of the cross section of the second and fourth molded heat insulating materials (22, 24) is circumferential with respect to the convex portions (31, 33) of the first and third molded heat insulating materials (21, 23). Tank insulation structure characterized by being engaged in a direction. In the tank heat insulation structure according to claim 2,
The other end of the semicircular arc shape of the first molded heat insulating material (21) is engaged with the other end of the semicircular arc shape of the second molded heat insulating material (22) in the radial direction,
The other end of the semicircular arc section of the third molded heat insulating material (23) is engaged with the other end of the semicircular arc shape of the fourth molded heat insulating material (24) in the radial direction. Thermal insulation structure.   A hot water storage tank apparatus comprising the tank heat insulating structure according to any one of claims 1 to 3.

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