JP2015031425A - Hot water storage unit and hot water supply device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a hot water storage unit which inhibits movement of a water heat exchanger and prevents damage of the water heat exchanger.SOLUTION: A heat insulation material 16 includes a support part 60 and a lid part 65. The lid part 65 is formed into a crank shape having a cross section, an upper end 65a, and a lower end 65b. The upper end 65a and the lower end 65b of the lid part 65 contact with the support part 60. The lid part 65 fixes a water heat exchanger 12 with the support part 60.

Description

  The present invention relates to a hot water storage unit and a hot water supply apparatus.

  Conventionally, as a hot water storage unit, there exists what was described in Unexamined-Japanese-Patent No. 2013-36739 (patent document 1). This hot water storage unit includes a can body, a water heat exchanger for generating hot water disposed below the can body and stored in the can body, and a heat insulating material covering the water heat exchanger. .

JP 2013-36739 A

  By the way, in the said conventional hot water storage unit, when the hot water storage unit was transported, it was not considered that the water heat exchanger moved around. That is, when the hot water storage unit is transported, the water heat exchanger may move through the gap between the heat insulating material and the water heat exchanger may be damaged.

  Then, the subject of this invention is providing the hot water storage unit and hot water supply apparatus which can suppress a motion of a water heat exchanger and can prevent the damage of a water heat exchanger.

In order to solve the above problems, the hot water storage unit of the present invention is:
A casing,
A can for being stored in the casing and storing hot water;
A water heat exchanger for generating warm water stored in the casing and disposed below the can body and stored in the can body;
A heat insulating material housed in the casing and covering at least the water heat exchanger;
The insulation material is
A support part that is located below the can body and supports the water heat exchanger;
A lid that covers the water heat exchanger together with the support,
The lid is formed in a crank shape having a cross section, an upper end and a lower end,
The upper end of the lid is in contact with the can or the support, and the lower end of the lid is in contact with a bottom plate of the casing or the support.
The said cover part fixes the said water heat exchanger with the said support part, It is characterized by the above-mentioned.

  According to the hot water storage unit of the present invention, the lid is formed in a crank shape having a cross section, an upper end and a lower end, the upper end of the lid contacts the can body or the support, and the lower end of the lid is the casing. Abutting on the bottom plate or the support portion, the lid portion fixes the water heat exchanger together with the support portion. Therefore, when the hot water storage unit is transported, the movement of the water heat exchanger can be suppressed, and the water heat exchanger can be prevented from being damaged.

In one embodiment of the hot water storage unit,
The support part has an opening for inserting the lid part,
The inner surface of the opening has a tapered surface formed so as to expand toward the opening side of the opening.

  According to the hot water storage unit of this embodiment, the inner surface of the opening of the support portion has a tapered surface formed so as to expand toward the opening side of the opening. Thereby, the taper surface of the opening part of a support part turns into a guide surface at the time of insertion of a cover part, and can attach a cover part to a support part easily.

  Moreover, in the hot water storage unit of one embodiment, the lid portion has a handle.

  According to the hot water storage unit of this embodiment, since the lid portion has a handle, the lid portion can be attached to or detached from the support portion while holding the handle, and the lid portion can be easily attached or detached. Can do.

  In one embodiment of the hot water storage unit, at least one of the upper end or the lower end of the lid portion abuts on the support portion.

  According to the hot water storage unit of this embodiment, at least one of the upper end or the lower end of the lid portion abuts on the support portion. Thereby, a water heat exchanger is fully covered with a cover part and a support part, and the heat insulation effect of a water heat exchanger improves.

  Moreover, in the hot water storage unit of one embodiment, the support part covers the can body.

  According to the hot water storage unit of this embodiment, since the support portion covers the can body, the heat insulating material that covers the water heat exchanger can also be used as the heat insulating material that covers the can body.

Moreover, in the hot water supply apparatus of one embodiment,
The hot water storage unit,
A compressor connected to the water heat exchanger of the hot water storage unit, an expansion means, and a heat pump unit including an air heat exchanger.

  According to the hot water supply apparatus of this embodiment, since the hot water storage unit is provided, damage to the water heat exchanger can be prevented and durability can be improved.

  Moreover, in the hot water supply apparatus of one Embodiment, the refrigerant | coolant which flows through the said heat pump unit is R32.

  According to the hot water storage unit and the hot water supply apparatus of the present invention, the lid portion fixes the water heat exchanger together with the support portion, so that the movement of the water heat exchanger can be suppressed and the water heat exchanger can be prevented from being damaged.

It is a simplified lineblock diagram showing the hot-water supply device of one embodiment of the present invention. It is a circuit diagram of a hot water supply apparatus. It is a perspective view of the hot water storage unit of a 1st embodiment of the present invention. It is a perspective view which shows the state which removed the piping, the heat insulating material, etc. of the hot water storage unit. It is sectional drawing of a part of hot water storage unit. It is explanatory drawing explaining the effect | action of a cover part. It is explanatory drawing explaining the state which attaches a cover part to a support part. It is a perspective view which shows the cover part of the hot water storage unit of 2nd Embodiment of this invention.

  Hereinafter, the present invention will be described in detail with reference to the illustrated embodiments.

(First embodiment)
FIG. 1 is a simplified configuration diagram illustrating a hot water supply apparatus according to an embodiment of the present invention. FIG. 2 is a circuit diagram of the hot water supply apparatus. As shown in FIGS. 1 and 2, the hot water supply device includes a hot water storage unit 1 that stores hot water and a heat pump unit 2 that heats the hot water stored in the hot water storage unit 1.

  The hot water storage unit 1 includes a can body 11 that stores hot water and a water heat exchanger 12 that heats the hot water stored in the can body 11. The heat pump unit 2 includes a refrigerant circuit excluding the water heat exchanger. That is, the heat pump unit 2 includes a compressor 21, expansion means 22, and air heat exchanger 23 connected to the water heat exchanger 12.

  The compressor 21, the water heat exchanger 12, the expansion means 22, and the air heat exchanger 23 are sequentially connected via a refrigerant pipe 31. The water heat exchanger 12 acts as a condenser, and the air heat exchanger 23 acts as an evaporator. The expansion means 22 is an expansion valve, for example.

  The refrigerant flowing through the heat pump unit 2 is, for example, R32. Note that carbon dioxide or chlorofluorocarbons such as HFC may be used as the refrigerant.

  Connected to the bottom of the can 11 is one water inlet passage 32a branched from a water supply pipe 32 connected to a water supply source E. Thereby, the city water supplied from the water supply source E is introduce | transduced into the bottom part of the can 11 through the inflow channel 32a. One end of the circulation pipe 33 is connected to the bottom of the can body 11. A circulation pump 34 and the water heat exchanger 12 are connected to the circulation pipe 33.

  The other end of the circulation pipe 33 is connected to the top of the can 11. A mixing valve 36 is connected to the top of the can 11 via a hot water supply pipe 35. The mixing valve 36 is connected to the other water inlet passage 32 b branched from the water supply pipe 32 and the hot water supply terminal T. Thereby, the hot water discharged from the top of the can 11 can be mixed with the water supplied from the water supply source E, and hot water at a desired temperature can be supplied at the hot water supply terminal T. Although omitted in FIG. 2, as shown in FIG. 1, a bath circulation pipe 37 is connected to the can 11 to circulate bath water.

  When the compressor 21 and the circulation pump 34 are driven, the water in the can body 11 flows through the circulation pipe 33 from the bottom of the can body 11. At this time, the water flowing through the circulation pipe 33 is heated (boiling) by the water heat exchanger 12 and returned to the top of the can 11. By continuously performing such an operation, the hot water generated by the water heat exchanger 12 can be stored in the can 11. The hot water in the can 11 is supplied to the hot water supply terminal T and the bath.

  FIG. 3 is a perspective view of the hot water storage unit 1. FIG. 4 is a perspective view showing a state in which the piping and heat insulating material of FIG. 3 are removed. As shown in FIGS. 3 and 4, the hot water storage unit 1 has a casing 40. The casing 40 includes a front plate 41, left and right side plates 42, 42, a rear plate 43, an upper plate 44, and a bottom plate 45.

  The casing 40 houses the can 11 and the water heat exchanger 12. The can 11 and the water heat exchanger 12 are covered with a heat insulating material 16. The heat insulating material 16 consists of resin, such as a polystyrene foam, for example. The heat insulating material 16 consists of a plurality of parts. The heat insulating material 16 is accommodated in the casing 40. In front of the can 11, piping (for example, piping 31, 32, 33, 35, 37 shown in FIGS. 1 and 2) and electrical components are arranged.

  The can body 11 is supported and supported by a plurality of can body legs 50. The upper end of the can body leg 50 is attached to the side surface of the can body 11, and the lower end of the can body leg 50 is attached to the bottom plate 45. The can body leg 50 is a separate body from the casing leg 46 attached to the lower surface of the bottom plate 45. The can leg 50 is accommodated in the casing 40.

  The can body 11 is separated from the bottom plate 45 by the can body leg 50, and a space surrounded by the bottom surface of the can body 11, the can body leg 50 and the bottom plate 45 is formed. The water heat exchanger 12 is disposed in this space (that is, the lower side of the can body 11).

  The casing 40 is provided with a maintenance opening 47, and a lid plate 48 is detachably attached to the maintenance opening 47. The maintenance opening 47 is at a position facing the water heat exchanger 12.

  As shown in FIG. 5, the heat insulating material 16 includes a support portion 60 located on the lower side of the can body 11 and a lid portion 65 detachably attached to the support portion 60 in the front (front plate 41 side). Have. The support unit 60 supports the water heat exchanger 12. The lid portion 65 covers the water heat exchanger 12 together with the support portion 60.

  The support 60 is placed on the bottom plate 45 of the casing 40 and covers the bottom surface of the can body 11. The support unit 60 includes a storage chamber 61 that stores the water heat exchanger 12, and an opening 62 that opens to the front of the storage chamber 61.

  The inner surface of the opening 62 has a tapered surface 62 a formed so as to expand toward the opening side of the opening 62. The tapered surface 62 a is located on the upper portion of the support portion 60. The taper surface 62a is inclined upward as it goes forward.

  The lid portion 65 is formed in a crank shape having a cross section, an upper end 65a and a lower end 65b. Specifically, the lid 65 includes a horizontal plate 66, a first vertical plate 67 connected to the horizontal plate 66, and a second vertical plate 68 connected to the horizontal plate 66.

  The horizontal plate 66 extends in the horizontal direction. The first vertical plate 67 is connected to the rear end of the horizontal plate 66 so as to be orthogonal to the horizontal plate 66. The second vertical plate 67 is connected to the front end of the horizontal plate 66 so as to be orthogonal to the horizontal plate 66.

  The upper part of the first vertical plate 67 has an upper end 65a, and the lower part of the second vertical plate 68 has a lower end 65b. The upper end 65 a abuts on the back side upper part of the inner surface of the storage chamber 61 of the support part 60. The lower end 65 b contacts the front lower portion of the inner surface of the opening 62 of the support portion 60.

  The lid 65 fixes the water heat exchanger 12 together with the support 60. The water heat exchanger 12 is sandwiched between the lower portion of the inner surface of the storage chamber 61 of the support portion 60 and the horizontal plate 66 of the lid portion 65. That is, the water heat exchanger 12 is fixed by surface contact by the support portion 60 and the lid portion 65.

  Next, a method for removing the water heat exchanger 12 will be described.

  First, as shown in FIG. 3, the cover plate 48 of the casing 40 is removed, and the cover 65 of the heat insulating material 16 is exposed from the maintenance opening 47 (see FIG. 4). Then, as shown in FIG. 5, the lid 65 is removed from the maintenance opening 47 to expose the water heat exchanger 12. Then, the water heat exchanger 12 is removed from the maintenance opening 47 to the front. In addition, attachment of the water heat exchanger 12 performs the reverse procedure of the said procedure.

  According to the hot water storage unit 1 having the above configuration, the lid portion 65 is formed in a crank shape having a cross section, an upper end 65a and a lower end 65b, and the upper end 65a and the lower end 65b of the lid portion 65 are in contact with the support portion 60, The part 65 fixes the water heat exchanger 12 together with the support part 60. Therefore, when the hot water storage unit 1 is transported, the movement of the water heat exchanger 12 can be suppressed, and damage to the water heat exchanger 12 can be prevented.

  Moreover, since the said cover part 65 is formed in the crank shape, the cover part 65 is easy to bend. Thereby, as shown in FIG. 6, when the upper end 65a of the lid portion 65 is pressed by the support portion 60, the lid portion 65 presses the water heat exchanger 12 in a bent state, and the water heat exchanger 12 is firmly fixed by the elastic force of the lid 65.

  Further, since the lid portion 65 is formed in a crank shape and is easily bent, even if the size of the water heat exchanger 12 changes, the lid portion 65 follows the size of the water heat exchanger 12 and elastically deforms. To do. Thereby, the cover part 65 can hold | maintain the water heat exchanger 12 of various sizes. In particular, when the water heat exchanger 12 is downsized, the small water heat exchanger 12 can be effectively fixed.

  Further, since the lid portion 65 is formed in a crank shape and is easily bent, the lid portion 65 can be attached to or detached from the support portion 60 while being bent, and the lid portion 65 can be easily attached or detached. Can do.

  Further, the upper end 65 a and the lower end 65 b of the lid portion 65 abut on the support portion 60. Thereby, the water heat exchanger 12 is fully covered with the cover part 65 and the support part 60, and the heat insulation effect of the water heat exchanger 12 improves.

  Further, since the upper end 65a of the lid portion 65 abuts on the lower support portion 60 of the can body 11, the upper end 65a of the lid portion 65 can be securely fixed using the weight of the can body 11, and the water heat The exchanger 12 can be securely pressed by the lid portion 65.

  In addition, the inner surface of the opening 62 of the support 60 has a tapered surface 62 a formed so as to expand toward the opening side of the opening 62. Thereby, the taper surface 62 a of the opening 62 of the support portion 60 becomes a guide surface when the lid portion 65 is inserted. Then, as shown in FIG. 7, the lid 65 can be inserted into the opening 62 while sliding the upper end 65 a of the lid 65 on the tapered surface 62 a of the opening 62, and the lid 65 can be easily attached to the support 60. Can be attached.

  Moreover, since the said support part 60 covers the said can body 11, the heat insulating material which covers the water heat exchanger 12 can be combined as a heat insulating material which covers the can body 11. FIG.

  According to the hot water supply apparatus having the above configuration, since the hot water storage unit 1 is provided, the water heat exchanger 12 can be prevented from being damaged and the durability can be improved.

(Second Embodiment)
FIG. 8 is a perspective view showing a hot water storage unit according to the second embodiment of the present invention. The second embodiment is different from the first embodiment only in the configuration of the lid. Only this different configuration will be described below. In the second embodiment, the same parts as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

  As shown in FIG. 8, the lid portion 65 </ b> A has a protruding handle 69. The handle 69 has a triangular shape. Two handles 69 are attached to the horizontal plate 66 of the lid portion 65A.

  Therefore, the lid 65A can be attached to or detached from the support 60 while holding the handle 69, and the lid 65A can be easily attached or detached.

  In addition, this invention is not limited to the above-mentioned embodiment. For example, the feature points of the first and second embodiments may be variously combined.

  In the first embodiment, the upper end and the lower end of the lid portion are in contact with the support portion. However, at least one of the upper end or the lower end of the lid portion may be in contact with the support portion, or the lid portion. The upper end of the lid may abut against the can body or the support portion, and the lower end of the lid portion may abut against the bottom plate or the support portion of the casing.

  In the first embodiment, the inner surface of the opening of the support portion has a tapered surface. However, the inner surface of the opening may have a uniform size toward the opening side of the opening.

  In the said 1st Embodiment, although the heat insulating material covered the can and the water heat exchanger, you may divide into the heat insulating material which covers a can and the heat insulating material which covers a water heat exchanger. Although the support part of the cover part has covered the can, you may make it cover only a water heat exchanger.

  In the second embodiment, the lid portion has a protruding handle, but may have a concave handle.

DESCRIPTION OF SYMBOLS 1 Hot water storage unit 2 Heat pump unit 11 Can body 12 Water heat exchanger 16 Heat insulating material 21 Compressor 22 Expansion means 23 Air heat exchanger 40 Casing 45 Bottom plate 60 Support part 61 Storage chamber 62 Opening part 62a Tapered surface 65, 65A Cover part 65a Upper end 65b Lower end 66 Horizontal plate 67 First vertical plate 68 Second vertical plate 69 Handle

Claims (7)

A casing (40);
A can (11) for storing hot water, housed in the casing (40);
A water heat exchanger (12) for generating warm water stored in the casing (40) and disposed below the can body (11) and stored in the can body (11);
A heat insulating material (16) housed in the casing (40) and covering at least the water heat exchanger (12);
The heat insulating material (16)
A support part (60) located below the can body (11) and supporting the water heat exchanger (12);
A lid (65, 65A) that covers the water heat exchanger (12) together with the support (60);
The lid (65, 65A) is formed in a crank shape having a cross section, an upper end (65a) and a lower end (65b),
The upper end (65a) of the lid (65, 65A) abuts on the can (11) or the support (60), and the lower end (65b) of the lid (65, 65A) Abutting against the bottom plate (45) of the casing (40) or the support (60);
The hot water storage unit, wherein the lid (65, 65A) fixes the water heat exchanger (12) together with the support (60). The hot water storage unit according to claim 1,
The support portion (60) has an opening (62) into which the lid portion (65, 65A) is inserted,
The hot water storage unit, wherein an inner surface of the opening (62) has a tapered surface (62a) formed so as to expand toward an opening side of the opening (62). The hot water storage unit according to claim 1 or 2,
The lid (65A) has a handle (69), a hot water storage unit. In the hot water storage unit according to any one of claims 1 to 3,
A hot water storage unit, wherein at least one of the upper end (65a) or the lower end (65b) of the lid (65, 65A) abuts on the support (60). In the hot water storage unit according to any one of claims 1 to 4,
The hot water storage unit, wherein the support (60) covers the can (11). A hot water storage unit (1) according to any one of claims 1 to 5,
A compressor (21) connected to the water heat exchanger (12) of the hot water storage unit (1), a heat pump unit (2) including an expansion means (22) and an air heat exchanger (23). A hot water supply device. The hot water supply apparatus according to claim 6,
The hot water supply apparatus, wherein the refrigerant flowing through the heat pump unit (2) is R32.

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