JP6255240B2 - Hot water storage unit and water heater - Google Patents

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 is one described in Japanese Patent Application Laid-Open No. 58-224256 (Patent Document 1). This hot water storage unit was provided with a can body and a water heat exchanger disposed on the top of the can body and connected to the can body.

JP 58-224256 A

  By the way, in the conventional hot water storage unit, when the water heat exchanger is disposed on the upper side of the can body, the water heat exchanger is placed on the can body heat insulating material covering the upper portion of the can body, The exchanger was covered with a lid. However, when the hot water storage unit is transported, the water heat exchanger may be displaced with respect to the thermal insulation of the can body, and when it is severe, there is a problem that the water heat exchanger swings violently.

  Then, the subject of this invention is providing the hot water storage unit and hot water supply apparatus which can prevent the shift | offset | difference of the water heat exchanger at the time of conveyance.

In order to solve the above problems, the hot water storage unit of the present invention is:
A can for storing hot water;
A can body insulation covering the top of the can body;
Is connected to the can body, and the water heat exchanger placed on the upper surface of the can body insulation,
Covering the water heat exchanger together with the can body heat insulating material , provided with a lid body separate from the can body heat insulating material ,
The can body heat-insulating member has a restricting portion that is integrally standing on the upper surface and that regulates the relative horizontal movement of the water heat exchanger by contacting the outer peripheral surface of the water heat exchanger. And
The regulation part is a continuous shape along the circumferential direction of the water heat exchanger,
The height of the upper end surface of the restricting part is higher than the height of the upper surface of the water heat exchanger .

  According to the hot water storage unit of the present invention, the can body heat insulating material has a restricting portion that restricts relative horizontal movement of the water heat exchanger. Thereby, when carrying out a hot water storage unit, the shift | offset | difference of a water heat exchanger can be prevented.

Moreover, the said control part is the shape which followed along the circumferential direction of the said water heat exchanger. Thereby, the rigidity of a control part becomes large and the durability of a control part improves. Moreover, the regulation part can contact the whole periphery of a water heat exchanger, and can prevent the shift | offset | difference of a water heat exchanger still more reliably. Furthermore, the regulation part can cover the entire circumference of the water heat exchanger, and can ensure the heat insulation of the water heat exchanger by the regulation part. Moreover, the height of the upper end surface of the said restriction | limiting part is higher than the height of the upper surface of the said water heat exchanger. Thereby, the height direction of a water heat exchanger can be completely covered with a control part, and the heat insulation of a water heat exchanger can be secured further.

In one embodiment of the hot water storage unit,
The lid has a lower end surface,
The restricting portion has an upper end surface that contacts the lower end surface of the lid,
The lower end surface of the lid and the upper end surface of the restricting portion have an inlay structure that fits together.

  According to the hot water storage unit of this embodiment, the lower end surface of the lid body and the upper end surface of the restricting portion have an inlay structure that fits together. Thereby, a lid can be easily and reliably fitted to a can body heat insulating material.

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, the water heat exchanger can be prevented from shifting when the hot water storage unit is transported.

  According to the hot water storage unit and the hot water supply apparatus of the present invention, the can body heat insulating material has a restricting portion that restricts the relative horizontal movement of the water heat exchanger, so when transporting the hot water storage unit, etc. The displacement of the water heat exchanger can be prevented.

It is a simplified lineblock diagram showing the hot-water supply device containing the hot water storage unit of a 1st embodiment of the present invention. It is sectional drawing seen from the side of the hot water storage unit. It is sectional drawing seen from the upper direction of the hot water storage unit. It is sectional drawing seen from the upper side which shows the hot water storage unit as one reference example . It is sectional drawing of the expansion | deployment state seen from the side of a can body heat insulating material and a cover body. It is sectional drawing seen from the upper side which shows the hot water storage unit as another reference example . It is a simplified block diagram which shows 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. As shown in FIG. 1, the hot water supply apparatus 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 is connected to the can body 11 and 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.

  When the circulation pump 34 is driven, the water in the can 11 flows from the bottom of the can 11 to the water heat exchanger 12. When the compressor 21 is driven, the refrigerant in the refrigerant pipe 31 flows through the water heat exchanger 12. Thereby, the water in the can 11 is heated (boiling) by the high-temperature refrigerant in 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. Hot water in the can 11 is supplied to the hot water supply terminal T.

  2 is a cross-sectional view of the hot water storage unit 1 as viewed from the side, and FIG. 3 is a cross-sectional view of the hot water storage unit 1 as viewed from above. As shown in FIGS. 2 and 3, the upper portion of the can body 11 is covered with a can body heat insulating material 5. A water heat exchanger 12 is placed on the can body heat insulating material 5. A lid 6 is disposed on the water heat exchanger 12. The lid body 6 covers the water heat exchanger 12 together with the can body heat insulating material 5. The can body heat insulating material 5 and the lid body 6 are made of a heat insulating material, for example, a resin such as polystyrene foam.

  The said can body heat insulating material 5 has the main-body part 50 which contacts the can body 11, and the control part 51 which protrudes upwards from the main-body part 50. As shown in FIG. The restricting unit 51 restricts the relative horizontal movement of the water heat exchanger 12. Here, the water heat exchanger 12 has a ring shape in plan view, and the water heat exchanger 12 is formed, for example, by winding a pipe in a spiral shape.

  The restricting portion 51 contacts the outer peripheral surface of the water heat exchanger 12. The restricting portion 51 has a continuous shape along the circumferential direction of the water heat exchanger 12. That is, the restricting portion 51 is formed in an annular shape in plan view and faces the entire circumference of the outer peripheral surface of the water heat exchanger 12.

  The lid body 6 includes a main body portion 60 that faces the upper surface of the water heat exchanger 12 and a protrusion 61 that protrudes downward from the main body portion 60. The protrusion 61 of the lid body 6 has a lower end surface 61a. The restricting portion 51 has an upper end surface 51 a that contacts the lower end surface 61 a of the protrusion 61. The lower end surface 61a of the lid body 6 and the upper end surface 51a of the restricting portion 51 have an inlay structure that fits together. That is, the lower end surface 61a and the upper end surface 51a are formed in a stepped shape. Further, the height of the upper end surface 51 a of the restricting portion 51 is higher than the height of the upper surface 12 a of the water heat exchanger 12.

  According to the hot water storage unit 1 having the above configuration, the can body heat insulating material 5 has the restricting portion 51 that restricts the relative horizontal movement of the water heat exchanger 12. Thereby, when the hot water storage unit 1 is transported, the water heat exchanger 12 can be prevented from shifting, and the water heat exchanger 12 can be reliably prevented from being violated during transport.

  Further, the restricting portion 51 is in contact with the outer peripheral surface of the water heat exchanger 12. Thereby, the restriction | limiting part 51 can prevent the shift | offset | difference of the horizontal direction of the water heat exchanger 12 reliably.

  Further, the restricting portion 51 has a continuous shape along the circumferential direction of the water heat exchanger 12. Thereby, the rigidity of the restricting portion 51 is increased, and the durability of the restricting portion 51 is improved. Moreover, the control part 51 can contact the whole periphery of the water heat exchanger 12, and can prevent the shift | offset | difference of the water heat exchanger 12 more reliably. Furthermore, the regulation part 51 can cover the whole periphery of the water heat exchanger 12, and can ensure the heat insulation of the water heat exchanger 12 by the regulation part 51.

  The lower end surface 61a of the lid 6 and the upper end surface 51a of the restricting portion 51 have an inlay structure that fits together. Thereby, the cover body 6 can be easily and reliably fitted to the can body heat insulating material 5.

  Further, the height of the upper end surface 51 a of the restricting portion 51 is higher than the height of the upper surface 12 a of the water heat exchanger 12. Thereby, the height direction of the water heat exchanger 12 can be completely covered by the restriction part 51, and heat insulation can be further secured.

  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 shifting when the hot water storage unit 1 is transported.

(First reference example )
FIG. 4 is a cross-sectional view seen from above showing a hot water storage unit as one reference example . FIG. 5 is a cross-sectional view of the unfolded state as seen from the side of the can body heat insulating material and the lid. This reference example is different from the first embodiment only in the configuration of the can body heat insulating material and the lid. Only this different configuration will be described below. In this reference example , the same reference numerals as those in the first embodiment are the same as those in the first embodiment, and the description thereof is omitted.

  As shown in FIGS. 4 and 5, the can body heat insulating material 5A of the hot water storage unit 1A has a main body portion 50A that contacts the can body 11, and a plurality of (four in this embodiment) projecting upward from the main body portion 50A. The restricting portion 51A. The restricting portion 51 </ b> A restricts the relative horizontal movement of the water heat exchanger 12. The restricting portion 51 </ b> A comes into contact with the outer peripheral surface of the water heat exchanger 12. The plurality of regulating portions 51 </ b> A are arranged at intervals from each other along the circumferential direction of the water heat exchanger 12. Each restricting portion 51 </ b> A is disposed at four corners of the water heat exchanger 12.

  The lid 6A of the hot water storage unit 1A has a main body 60A that faces the upper surface of the water heat exchanger 12, and a plurality (four in this embodiment) of protrusions 61A that protrude downward from the main body 60A. . Each protrusion 61A is located between adjacent restricting parts 51A, and the plurality of protrusions 61A and the plurality of restricting parts 51A are fitted to each other. That is, the restricting portion 51A comes into contact with the main body portion 60A of the lid body 6A and the protruding portion 61A. The protrusion 61A contacts the main body 50A of the can body heat insulating material 5A and the restricting portion 51A.

  According to the hot water storage unit 1A having the above-described configuration, the can body heat insulating material 5A has the restricting portion 51A that restricts relative movement of the water heat exchanger 12 in the horizontal direction. Thereby, the shift of the water heat exchanger 12 can be prevented when the hot water storage unit 1A is transported.

  Further, the restricting portion 51 </ b> A contacts the outer peripheral surface of the water heat exchanger 12. Thereby, 51 A of control parts can prevent the horizontal shift | offset | difference of the water heat exchanger 12 reliably.

  Further, the plurality of restricting portions 51 </ b> A are arranged at intervals from each other along the circumferential direction of the water heat exchanger 12. Thereby, 51 A of some control parts can contact the part of the perimeter of the water heat exchanger 12, and can prevent the shift | offset | difference of the water heat exchanger 12. FIG. Therefore, the cost can be reduced by reducing the material of the restricting portion 51A.

  Further, the plurality of protrusions 61A and the plurality of restriction portions 51A are fitted to each other. Thereby, the lid 6A can be easily and reliably fitted to the can body heat insulating material 5A. Moreover, the water heat exchanger 12 can be completely covered by the lid 6A and the can body heat insulating material 5A, and the heat insulating property of the water heat exchanger 12 can be ensured.

( Second reference example )
FIG. 6 is a cross-sectional view from above showing a hot water storage unit as another reference example . This reference example is different from the first embodiment only in the configuration of the can body heat insulating material. Only this different configuration will be described below. In this reference example , the same reference numerals as those in the first embodiment are the same as those in the first embodiment, and the description thereof is omitted.

  As shown in FIG. 6, the can body heat insulating material 5B of the hot water storage unit 1B includes a main body portion 50B that contacts the can body 11 and a restriction portion 51B that protrudes upward from the main body portion 50B. The restricting unit 51 </ b> B restricts the relative horizontal movement of the water heat exchanger 12.

  The restriction part 51 </ b> B contacts the inner peripheral surface of the water heat exchanger 12. The restricting portion 51 </ b> B has a continuous shape along the circumferential direction of the water heat exchanger 12. That is, the restricting portion 51 </ b> B is formed in a rectangular shape in plan view and faces the entire circumference of the inner peripheral surface of the water heat exchanger 12.

  According to the hot water storage unit 1B having the above-described configuration, the can body heat insulating material 5B has the restricting portion 51B that restricts relative movement of the water heat exchanger 12 in the horizontal direction. Thereby, the shift of the water heat exchanger 12 can be prevented when the hot water storage unit 1B is transported.

  Further, the restricting portion 51 </ b> B contacts the inner peripheral surface of the water heat exchanger 12. Thereby, the control part 51B can prevent the horizontal shift | offset | difference of the water heat exchanger 12 reliably.

  Further, the restricting portion 51 </ b> B has a continuous shape along the circumferential direction of the water heat exchanger 12. Thereby, the rigidity of the restricting portion 51B is increased, and the durability of the restricting portion 51B is improved. Moreover, the control part 51B can contact the whole periphery of the water heat exchanger 12, and can prevent the shift | offset | difference of the water heat exchanger 12 still more reliably. Furthermore, the regulation part 51B can cover the whole periphery of the water heat exchanger 12, and can ensure the heat insulation of the water heat exchanger 12 by the regulation part 51B.

(Second Embodiment)
FIG. 7 is a simplified configuration diagram 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 water heat exchanger. Only this different configuration will be described below. In the second embodiment, the same reference numerals as those in the first embodiment are the same as those in the first embodiment, and the description thereof is omitted.

  As shown in FIG. 7, the water heat exchanger 12 </ b> C of the hot water storage unit 1 </ b> C is connected to the can body 11 and heats the water circulating in the bath F. That is, this water heat exchanger 12C is not the heat pump water heat exchanger of the first embodiment but a reheating water heat exchanger.

  Although not shown, the water heat exchanger for heat pump is connected to the can body 11. In this case, the water heat exchanger for heat pump may be included in the hot water storage unit 1C, or may be included in the heat pump unit 2.

  An inlet and an outlet of the recirculation circulation pipe 40 are connected to the top of the can body 11. A circulation pump 37 and the water heat exchanger 12C are connected to the recirculation circulation pipe 40.

  A bath circulation pipe 38 is connected to the water heat exchanger 12C. The inlet and outlet of the bath circulation pipe 38 are connected to the bath F. A circulation pump 39 is connected to the bath circulation pipe 38.

  When the circulation pump 37 of the recirculation circulation pipe 40 is driven, the hot water in the can 11 flows through the water heat exchanger 12C. When the circulation pump 39 of the bath circulation pipe 38 is driven, the water in the bath F flows through the water heat exchanger 12C. Thereby, the water flowing through the bath circulation pipe 38 is heated by the hot heat water flowing through the recirculation circulation pipe 40 in the water heat exchanger 12C, and the water of the bath F is retreated.

Although not shown, the water heat exchanger 12C is covered with a can body heat insulating material and a lid, as in the first embodiment. Therefore, also in this second embodiment provides the same effects as the first embodiment.

In addition, this invention is not limited to the above-mentioned embodiment, A design change is possible in the range which does not deviate from the summary of this invention. For example, the feature points of the first and second embodiments may be variously combined.

In the first and second embodiments, the restricting portion is brought into contact with the outer peripheral surface of the water heat exchanger, but the restricting portion is provided on the outer peripheral surface and the inner peripheral surface of the water heat exchanger. You may make it contact. In this case, the restriction part on the outer peripheral surface side and the restriction part on the inner peripheral surface side may have the same shape or different shapes.

In the first and second embodiments, the protrusion of the lid is fitted on the upper end surface of the restricting portion of the can body heat insulating material. You may make it fit in the outer peripheral surface or inner peripheral surface of this control part.

1, 1A, 1B, 1C Hot water storage unit 2 Heat pump unit 5, 5A, 5B Can body heat insulating material 6, 6A Cover body 11 Can body 12, 12C Water heat exchanger 12a Upper surface 21 Compressor 22 Expansion means 23 Air heat exchanger 50 , 50A, 50B Body 51, 51A, 51B Restriction 51a Upper end 60, 60A Body 61, 61A Projection 61a Lower end

Claims (3)

A can (11) for storing hot water;
A can body heat insulating material ( 5 ) covering the top of the can body (11);
Is connected to the can body (11), the can body heat insulator (5) water heat exchanger placed on the upper surface of the (12,12C),
The can body heat insulator with (5) covering the water heat exchanger (12,12C), and a lid separate (6) and the can body heat insulator (5),
The said can body heat insulating material ( 5 ) stands upright integrally with the said upper surface, and is relative to the said water heat exchanger (12,12C) by contacting the outer peripheral surface of the said water heat exchanger (12,12C). possess regulatory portion for restricting the movement in the horizontal direction (51),
The restricting portion (51) is a continuous shape along the circumferential direction of the water heat exchanger (12, 12C),
The hot water storage unit , wherein the height of the upper end surface (51a) of the restricting portion (51) is higher than the height of the upper surface (12a) of the water heat exchanger (12, 12C) . The hot water storage unit according to claim 1 ,
The lid (6) has a lower end surface (61a) that contacts the upper end surface (51a) of the restricting portion (51) ,
The hot water storage unit characterized in that the lower end surface (61a) of the lid (6) and the upper end surface (51a) of the restricting portion (51) have an inlay structure that fits together. A hot water storage unit ( 1 ) according to any one of claims 1 or 2 ,
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.

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