JP5449474B2 - Hot water storage hot water supply system - Google Patents

Description

  The present invention relates to a hot water storage type hot water supply system, and more particularly, to a heat insulation method for a hot water storage tank and a medium / high temperature piping component equipped in the hot water storage type hot water supply system.

  The hot water storage type hot water supply system is a system that is applied when the heating capability of the heating means is relatively small as compared to an instantaneous hot water supply system or the like, or when the start-up of the capability at the time of activation of the heating means is slow.

  Also, the hot water storage type hot water supply system stores hot water for hot water boiled by the heating means in advance in the hot water storage tank so that the hot water does not run out due to the hot water supply load. It is a system that supplies hot water.

  In addition, the hot water storage system is a system that stores hot water in a hot water storage tank in advance, and since heat is radiated from the hot water storage tank to the surrounding environment before the user uses the hot water, the thermal insulation performance of the hot water storage tank is great for energy saving. It is an influential system.

  In addition, the hot water storage hot water supply system uses various pipes and parts to guide the hot water boiled by the heating means to the hot water storage tank and to transmit the heat in the hot water storage tank to the demand end where the user uses the hot water. Because it is necessary, it is a system that supports and fixes these pipes and parts in some way.

  Moreover, since heat is dissipated to the surrounding environment also in those piping and components, it is a system in which the heat insulation performance of those piping and components has big influence on energy-saving property.

  As a conventional hot water storage type hot water supply system, for example, in a memorial heat exchanger that is one of the parts that conducts heat to a demand end, “... a heat insulating material disposed so as to cover the entire surface of the heat exchanger. What is provided is known (see Patent Document 1). Such a hot water storage type hot water supply system covers each single component with a heat insulating material, and suppresses heat radiation to the surrounding environment in the component.

  In addition, as a conventional hot water storage type hot water supply system, for example, “... for keeping warm a hot water storage tank ... a support for attaching a component disposed in the unit body to the heat insulating material” It is known that it is composed of a foam heat insulating material embedded in (see Patent Document 2). In such a hot water storage type hot water supply system, a deep recess capable of supporting various components is provided in the heat insulating material covering the hot water storage tank, and a support is embedded in the recess, and the various components are fixed to the support. As a result, various parts can be fixed by a relatively inexpensive method.

JP-A-2005-147413 (Claim 1, FIG. 1) JP 2008-057994 A (Claim 1, FIG. 4)

  However, the hot water storage type hot water supply system of Patent Document 1 has a problem in that each part is covered with a heat insulating material, so that the work is complicated and the cost is high.

  Moreover, the hot water storage type hot-water supply system of patent document 2 is the structure which covers only a hot water storage tank with a heat insulating material, and is not the structure covered with a heat insulating material with respect to various components attached to a hot water storage tank. For this reason, the hot water storage hot water supply system of Patent Document 2 is a technique for the purpose of inexpensively supporting parts rather than improving energy savings, and in the embedded part of the parts, since the tank heat insulating material is provided with a deep recess, the thickness of the tank heat insulating material is reduced. There was a problem that it became thin and the heat insulation performance deteriorated.

  The present invention has been made in view of the problems as described above, and concentrates and arranges pipes and parts through which medium-high temperature hot water circulates or circulates, and covers them with a heat insulating material so that the heat insulating material is used as a tank heat insulating material. By combining these, it is possible to simultaneously achieve the three advantages of suppressing heat dissipation from medium and high temperature piping parts, supporting and fixing simple and inexpensive medium and high temperature piping parts, and enhancing the heat insulation performance of hot water storage tanks. The purpose is to obtain a hot water storage hot water supply system with improved performance.

A hot water storage type hot water supply system according to the present invention includes a hot water storage tank in which hot water boiled by a heating means is stored, a hot water supply circuit that supplies hot water in the hot water storage tank to a hot water supply destination via a hot water tap mixing means, In a hot water storage hot water supply system comprising a tank heat insulating material that covers the hot water storage tank and an exterior casing that accommodates at least the hot water storage tank, pipes and parts that are provided in each of the heating means and the hot water supply circuit and that are at a medium to high temperature And a medium and high temperature pipe component heat insulating material that covers at least a part of the medium and high temperature pipes and components, and the medium and high temperature pipe and components between the side surface of the tank heat insulating material and the exterior housing Arranged in a vertically extending vertical space, the medium and high temperature pipe component heat insulating material is disposed in a portion of the pipe and components that are at medium and high temperatures, and located in the vertical space. The pipe and is fixed by sandwiching a portion of the component to the tank insulation, at least two pipes and components of piping and components as the above during the high temperature is covered by the in high-temperature pipe part heat insulating material between the The portions of the two or more pipes and parts covered with the medium / high temperature pipe part heat insulating material are arranged at positions close to each other .

  In the hot water storage type hot water supply system of the present invention, a part of piping and parts through which hot water of medium and high temperature flows is arranged in a vertically extending vertical space between the side surface of the tank heat insulating material and the exterior housing, and part of the pipes and parts. The heat insulation from the pipes and parts (hereinafter referred to as “mid-high temperature pipe parts”), which is at a medium to high temperature, is suppressed by connecting the heat insulation to the tank heat insulation while covering with the heat insulation arranged in the vertical space, simple and inexpensive It is possible to simultaneously achieve the three advantages of supporting and fixing the hot and cold pipe parts and enhancing the heat insulation performance of the hot water storage tank. This has the effect of improving energy saving with high cost performance.

It is a block diagram of the hot water storage type hot water supply system which concerns on Embodiment 1 of this invention. It is a schematic diagram which shows the heat insulating material structure of the hot water storage type hot-water supply system which concerns on Embodiment 1 of this invention. It is explanatory drawing of natural convection generation | occurrence | production in the heat insulating material structure of the hot water storage type hot-water supply system which concerns on Embodiment 1 of this invention. It is explanatory drawing of another natural convection generation | occurrence | production in the heat insulating material structure of the hot water storage type hot-water supply system which concerns on Embodiment 1 of this invention. It is a schematic diagram of the natural convection suppression in the heat insulating material structure which concerns on Embodiment 2 of this invention.

Embodiment 1 FIG.
First, the configuration of the hot water storage type hot water supply system according to Embodiment 1 of the present invention will be described. FIG. 1 is a configuration diagram thereof. Moreover, in the following description, a pipe in which medium-high temperature hot water circulates or circulates and becomes medium-high temperature is referred to as “medium-high temperature pipe”. Is referred to as “medium / high temperature parts”. And, when referring to both the medium and high temperature pipes and the medium and high temperature parts, they are referred to as “medium and high temperature pipe parts”. In addition, “medium / high temperature” here refers to a temperature higher than the water temperature (about 20 ° C. to 25 ° C.), although it depends on the ambient temperature and season. In FIG. 1, the medium and high temperature pipes are indicated by thick solid lines, and the other pipes are indicated by thin solid lines.

In FIG. 1, reference numeral 1 denotes a hot water storage tank in which boiled hot water is stored, and is accommodated in an exterior housing 2. The hot water storage tank 1 is connected to a heating means 10, a first hot water supply circuit 20, and a second hot water supply circuit 30.
The heating means 10 is configured in a circulation circuit so as to be heated and boiled while circulating the water in the hot water storage tank 1, and a heating forward pipe 11 that guides water from the lower part of the hot water storage tank 1 to the heating means 10; The heating return pipe 12 guides hot water from the heating means 10 to the upper part of the hot water storage tank 1, and the heating pump 13 is connected to the heating forward pipe 11 and circulates water and hot water.
In addition, a water supply pipe 100 connected to city water and water supply is connected to the lower part of the hot water storage tank 1, and water is supplied to the hot water storage tank 1 through the water supply pipe 100.

In this heating means 10, low temperature water flows out from the lower part of the hot water storage tank 1 toward the heating means 10 through the heating outlet pipe 11, and the hot water boiled by the heating means 10 passes through the heating return pipe 12. It flows from the upper part of the hot water storage tank 1 through.
In addition, the heating means 10 is comprised, for example using a heat pump cycle and a gas combustor. In the following description, a case where a heat pump cycle is used for the heating means 10 will be described.

  The first hot water supply circuit 20 is a pipe that supplies hot water from the hot water storage tank 1 to the hot water supply destination via the hot water tap mixing means 22, and is used for a hot water tap that connects the upper part of the hot water storage tank 1 and the hot water tap mixing means 22. It has a lead-out pipe 21 and a hot-water supply pipe 23 that connects the hot-water tap mixing means 22 and the hot water supply destination. The hot water tap mixing means 22 is composed of, for example, a three-way valve. The hot water mixing means 22 is connected to a hot water outlet outlet pipe 21 and a hot water outlet piping 23, and is connected to a hot water supply pipe 101 branched from the water supply pipe 100. At 22, hot water from hot water storage tank 1 and low temperature water from hot water tap water supply pipe 101 are mixed and hot water adjusted to an appropriate temperature is supplied to hot water supply destination through hot water tap outlet pipe 23. As hot water supply destinations, taps such as faucets, showers, and bathtubs 40 installed in kitchens, washrooms, bathrooms, and the like are used. Moreover, when using for floor heating, the 1st hot water supply circuit 20 is comprised by the circulation circuit.

  The 2nd hot water supply circuit 30 is a pipe line which has the recuperation heat exchanger 31 which can replenish bathtub water. The remedy heat exchanger 31 includes a remedy piping 32 that guides hot water in the upper part of the hot water storage tank, and hot water after heat exchange from the remedy heat exchanger 31 to the hot water storage tank 1 via the remedy pump 34. A remedy return pipe 33 that returns to the hot water storage tank 1 is connected, and a tub return pipe 36 that guides the bath water whose temperature has been lowered to the remedy heat exchanger 31 through the bathtub pump 35, and a remedy heat exchange. A bathtub return pipe 37 that returns hot water after heat exchange from the vessel 31 to the bathtub 40 is connected.

  In the second hot water supply circuit 30, the hot water in the hot water storage tank 1 is circulated to the remedy heat exchanger 31 through the remedy delivery pipe 32 and the remedy return pipe 33 by the remedy pump 34, and the bath water is supplied. The bath pump 35 is circulated through the bathtub return pipe 36 and the bathtub return pipe 37 to the memory heat exchanger 31. At that time, in the recuperation heat exchanger 31, the hot water in the hot water storage tank 1 and the bath water that has fallen hot water are heat-exchanged, so that the temperature of the bath water is raised (heated) to an appropriate temperature. be able to.

Here, a heating return pipe 12 through which medium-high temperature hot water circulates when boiling into hot water by the heating means 10, and a hot-water tap outlet pipe 21 through which medium-high temperature hot water circulates when the user uses hot water from the hot water tap, Hot water outlet piping 23 and hot water in the upper part of the hot water storage tank when the hot water in the hot water tank is reheated and the hot water circulates when the hot water circulates, and the hot water return piping 32 and the return return piping. 33, the bathtub return pipe 36, and the bathtub return pipe 37 correspond to the “medium / high temperature pipe” in the present invention.
In addition, the components (mixer 22 for hot-water tap, remedy heat exchanger 31, remedy pump 34, and tub pump 35) connected to the medium and high temperature pipe correspond to “medium and high temperature components” in the present invention. .

  The entire hot water storage tank 1 is covered with an appropriate heat insulating material (tank heat insulating material) 3 in order to suppress heat dissipation from the hot water storage tank 1 to the surrounding environment. Furthermore, at least a part of these medium / high temperature pipe parts is covered with an appropriate heat insulating material (medium / high temperature pipe part heat insulating material) 4 in order to suppress heat radiation from the medium / high temperature pipes and medium / high temperature parts to the surrounding environment. . Here, in the configuration example of FIG. 1, a configuration in which the hot water outlet piping 21 and the hot water mixing means 22 are not accommodated in the intermediate and high temperature piping component heat insulating material 4 among the medium and high temperature piping components is illustrated. It is good also as a structure which accommodates.

FIG. 2 is a diagram showing the structure of the tank heat insulating material 3 and the medium / high temperature pipe component heat insulating material 4. It is a cross-sectional front view which shows the accommodating part by 3,4. 3 is a cross-sectional view similar to FIG. 2, but is an explanatory view of the occurrence of natural convection in the heat insulating material structure.
As shown in FIG. 2, the tank heat insulating material 3 is provided with, for example, a concave portion 5 extending in the vertical direction on the outer peripheral surface, while the middle heat pipe member heat insulating material 4 has a convex portion 6 fitted in the concave portion 5. Is provided. Therefore, the intermediate / high temperature piping component heat insulating material 4 is fixed to the tank heat insulating material 3 by fitting the convex portion 6 into the concave portion 5 of the tank heat insulating material 3. In addition, the recessed part 5 and the convex part 6 may be provided in the opposite relationship to the above, and a recessed part or a convex part may be provided above and below the circumferential direction of the tank heat insulating material 3.

  Further, a housing space 7 for accommodating a part of the medium / high temperature piping component is formed between both the heat insulating materials 3, 4, and a part of the medium / high temperature piping component is interposed between the both heat insulating materials 3, 4. Housed in a sandwiched form.

  Further, as shown in FIG. 3, the intermediate / high temperature pipe component heat insulating material 4 increases the thickness t2 of a part of the tank heat insulating material 3 relative to the hot water storage tank 1 even if the concave portion 5 and the convex portion 6 are provided. Therefore, since the total thickness t1 of both the heat insulating materials 3 and 4 increases (t1> t2), it can be set as the structure equivalent to improving heat insulation performance.

  Here, there is no significant difference in heat insulation performance depending on the fixing method between the medium and high temperature pipe component heat insulating material 4 and the tank heat insulating material 3, but the combination of uneven portions is provided on each of the medium and high temperature pipe component heat insulating material 4 and the tank heat insulating material 3. If it is provided and fixed by fitting and coupling, and further supported by adhesive tape or the like, it is not necessary to specially provide a hard support such as metal or plastic, and both can be supported and fixed at low cost. .

In addition, a part of the medium / high temperature pipe component covered with the medium / high temperature pipe component heat insulating material 4 may be centrally arranged or scattered and separated from each other. In order to reduce the heat insulating material to be used and to facilitate the assembling work, it is preferable to arrange them to some extent as shown in FIG.
Further, at this time, in order to suppress heat exchange between the medium and high temperature pipe parts, they may be arranged with a certain interval. Or it is good also as a structure which arrange | positions a heat insulating material in between. Moreover, it is good also as a structure which heat-insulates medium-high temperature piping separately with a substantially hollow cylindrical heat insulating material.

  In general, a large gap (space) is often formed in the horizontal direction between the substantially cylindrical hot water storage tank 1 and the substantially prismatic outer casing 2. A temperature distribution is likely to occur, and natural convection as shown by a broken arrow in FIG. 3 is generated to facilitate heat dissipation. Therefore, the intermediate / high-temperature pipe component heat insulating material 4 is disposed so as to fill the gap 8 in order to prevent this natural convection.

  Here, the temperature distribution in the gap 8 means that the temperature distribution in the vertical direction caused by the high temperature in the hot water storage tank 1 and the low temperature in the lower temperature, and the air close to the hot water storage tank 1 are easily heated. Air close to the body 2 refers to a horizontal temperature distribution resulting from being easily cooled.

  Note that the present invention is not limited to the embodiment shown here, for example, a system that does not remedy hot water in a bathtub and performs only hot water from a hot water tap, and includes a remedy heat exchanger 31, a remedy pump 34, The present invention can also be applied to a system that does not include the bathtub pump 35, the follow-up pipe 32, the follow-up return pipe 33, the bathtub return pipe 37, and the bathtub return pipe 36. In this case, the heating return pipe 12, the tap outlet pipe 21, and the tap outlet pipe 23 correspond to “medium / high temperature pipe”, and the tap mixing means 22 corresponds to “medium / high temperature part”. The heat insulating material 4 is fixed to the tank heat insulating material 3 while covering a part of the medium and high temperature pipes and the medium and high temperature parts.

  As described above, in the first embodiment, a part of the medium / high temperature piping component is supported and fixed by being sandwiched between the medium / high temperature piping component heat insulating material 4 and the tank heat insulating material 3, thereby releasing heat from the medium / high temperature piping component. Since the three merits of suppression, simple and inexpensive support and fixing of medium- and high-temperature piping parts, and enhancement of the heat insulation performance of the hot water storage tank are realized at the same time, the energy-saving performance of the system can be improved with high cost performance.

  Moreover, in this Embodiment 1, also with respect to the hot water storage type hot-water supply system which has the tub's memorial function, a part of medium-high temperature piping component is pinched | interposed with the medium-high temperature piping component heat insulating material 4 and the tank heat insulating material 3. By supporting and fixing, high cost performance is achieved by simultaneously realizing the three merits of suppressing heat dissipation from medium and high temperature piping parts, supporting and fixing simple and inexpensive medium and high temperature piping parts, and enhancing heat insulation performance of hot water storage tanks. In this way, the energy saving performance of the system can be improved.

  Further, in the present embodiment 1, the above-described effect is achieved by adopting a configuration in which the medium and high temperature pipe component heat insulating material 4 and the tank heat insulating material 3 are fitted and fixed by a combination of uneven portions provided respectively. The energy saving performance of the system can be improved with higher cost performance.

  Further, in the first embodiment, at least two or more pipe parts covered with the medium / high temperature pipe part heat insulating material 4 are concentratedly arranged at positions close to each other, thereby reducing the medium / high temperature pipe part heat insulating material with as little heat insulating material as possible. Since it is created, the energy saving performance of the system can be improved with higher cost performance.

  Moreover, in this Embodiment 1, since the medium-high temperature piping component heat insulating material 4 is arrange | positioned so that the horizontal gap 8 of the hot water storage tank 1 and the exterior housing | casing 2 may be filled, the natural convection in the clearance gap 8 is carried out. Since it can suppress and can further suppress heat dissipation, energy saving property can be improved with higher cost performance.

Embodiment 2. FIG.
In this Embodiment 2, about the structure which suppresses the natural convection inside the storage space 7 which accommodates the medium-high temperature piping component heat insulating material 4 and the tank heat insulating material 3 which accommodates the medium-high temperature piping component, FIG. This will be described with reference to FIG. FIG. 4 is a cross-sectional view similar to FIG. 2, showing natural convection occurring inside the accommodation space 7, and FIG. 5 is a structural diagram for suppressing natural convection inside the accommodation space 7.
In addition, the structure of the hot water storage type hot-water supply system in this Embodiment 2 is the same as that of the said Embodiment 1, and attaches | subjects the same code | symbol to the same part.

  The accommodation space 7 for accommodating the medium / high temperature piping parts is preferably filled with a heat insulating material without gaps as much as possible except for the space occupied by the medium / high temperature piping parts, but is used for low cost. A smaller amount of insulation is desirable.

  However, if the amount of the heat insulating material is small and the gap in the storage space 7 is large, natural convection occurs inside the storage space as shown in FIG. 4, and the heat insulation performance of the medium / high temperature piping parts and the hot water storage tank 1 is reduced. It causes a decrease. Note that the natural convection inside the accommodation space is caused by the fact that the temperature difference between the upper and lower sides of the hot water storage tank is likely to occur according to the temperature difference above and below the hot water storage tank.

  Therefore, in the second embodiment, as shown in FIG. 5, a partition portion 9 that partitions the upper portion and the lower portion is provided in the storage space 7 that stores the medium / high temperature piping component.

  By providing the partition part 9 in this way, the temperature difference between the upper and lower storage spaces of the partition part 9 is reduced, so that natural convection can be reduced. In addition, the presence of the partition 9 serves to directly suppress the flow of natural convection.

  As described above, in the second embodiment, by providing the partitioning portion 9 that partitions the upper portion and the lower portion in the accommodating space 7 that accommodates the intermediate / high temperature piping component, the clearance is large in the accommodating space 7 that accommodates the intermediate / high temperature piping component. Even if it is a case, a natural convection can be suppressed and the heat insulation performance of the hot water storage tank 1 and a medium-high temperature piping component can be improved with fewer heat insulating materials.

  DESCRIPTION OF SYMBOLS 1 Hot water storage tank, 2 Exterior casing, 3 Tank heat insulating material, 4 Medium-high temperature piping component heat insulating material, 5 Recessed part, 6 Convex part, 7 Storage space, 8 Crevice, 9 Partition part, 10 Heating means, 11 Heating piping, 12 Heating return pipe, 13 Heating pump, 20 First hot water supply circuit, 21 Hot water tap outlet pipe, 22 Hot water tap mixing means, 23 Hot water tap outgoing pipe, 30 Second hot water supply circuit, 31 Reheating heat exchanger, 32 Additional Outward piping, 33 additional return piping, 34 additional pump, 35 bathtub pump, 36 bathtub return piping, 37 bathtub outgoing piping, 40 bathtub, 100 water supply piping, 101 hot water supply piping.

Claims (6)

A hot water storage tank in which hot water boiled by the heating means is stored;
A hot water supply circuit for supplying hot water in the hot water storage tank to a hot water supply destination through mixing means for hot water taps;
A tank insulation covering the hot water storage tank;
An exterior housing that houses at least a hot water storage tank;
In a hot water storage system with
Pipes and parts that are medium and high temperature provided in each of the heating means and the hot water supply circuit,
A medium and high temperature pipe component heat insulating material covering at least a part of the pipe and the component that are medium and high temperature,
The medium and high temperature pipes and components are arranged in a vertical space extending vertically between a side surface of the tank heat insulating material and the exterior housing,
Place the medium and high temperature pipe component heat insulating material in the portion located in the vertical space of the pipe and components that are medium and high temperature,
The medium / high temperature pipe component heat insulating material is fixed to the tank heat insulating material by sandwiching a part of the pipe and the component between the tank heat insulating material ,
At least two or more pipes and parts among the pipes and parts that become medium and high temperature are covered with the medium and high temperature pipe parts heat insulating material,
A part of the two or more pipes and parts covered with the medium / high temperature pipe part heat insulating material is disposed at a position close to each other . A hot water storage tank in which hot water boiled by the heating means is stored;
A first hot water supply circuit for supplying hot water in the hot water storage tank to a hot water supply destination through mixing means for hot water taps;
A second hot water supply circuit having a reheating heat exchanger for exchanging heat between the hot water in the hot water storage tank and the water in the bathtub;
A tank insulation covering the hot water storage tank;
An exterior housing that houses at least a hot water storage tank;
In a hot water storage system with
Pipes and parts that are medium and high temperature provided in each of the heating means and the hot water supply circuit,
A medium and high temperature pipe component heat insulating material covering at least a part of the pipe and the component that are medium and high temperature,
The medium and high temperature pipes and components are arranged in a vertical space extending vertically between a side surface of the tank heat insulating material and the exterior housing,
Place the medium and high temperature pipe component heat insulating material in the portion located in the vertical space of the pipe and components that are medium and high temperature,
The medium / high temperature pipe component heat insulating material is fixed to the tank heat insulating material by sandwiching a part of the pipe and the component between the tank heat insulating material ,
At least two or more pipes and parts among the pipes and parts that become medium and high temperature are covered with the medium and high temperature pipe parts heat insulating material,
A part of the two or more pipes and parts covered with the medium / high temperature pipe part heat insulating material is disposed at a position close to each other . A hot water storage tank in which hot water boiled by the heating means is stored;
A hot water supply circuit for supplying hot water in the hot water storage tank to a hot water supply destination through mixing means for hot water taps;
A tank insulation covering the hot water storage tank;
An exterior housing that houses at least a hot water storage tank;
In a hot water storage system with
Pipes and parts that are medium and high temperature provided in each of the heating means and the hot water supply circuit,
A medium and high temperature pipe component heat insulating material covering at least a part of the pipe and the component that are medium and high temperature,
The medium and high temperature pipes and components are arranged in a vertical space extending vertically between a side surface of the tank heat insulating material and the exterior housing,
Place the medium and high temperature pipe component heat insulating material in the portion located in the vertical space of the pipe and components that are medium and high temperature,
The medium / high temperature pipe component heat insulating material is fixed to the tank heat insulating material by sandwiching a part of the pipe and the component between the tank heat insulating material ,
A hot water storage type hot water supply characterized by having a partition part for separating the upper part and the lower part in a housing space between the medium and high temperature pipe part heat insulating material and the tank heat insulating material, which accommodates the medium and high temperature pipes and parts. system. A hot water storage tank in which hot water boiled by the heating means is stored;
A first hot water supply circuit for supplying hot water in the hot water storage tank to a hot water supply destination through mixing means for hot water taps;
A second hot water supply circuit having a reheating heat exchanger for exchanging heat between the hot water in the hot water storage tank and the water in the bathtub;
A tank insulation covering the hot water storage tank;
An exterior housing that houses at least a hot water storage tank;
In a hot water storage system with
Pipes and parts that are medium and high temperature provided in each of the heating means and the hot water supply circuit,
A medium and high temperature pipe component heat insulating material covering at least a part of the pipe and the component that are medium and high temperature,
The medium and high temperature pipes and components are arranged in a vertical space extending vertically between a side surface of the tank heat insulating material and the exterior housing,
Place the medium and high temperature pipe component heat insulating material in the portion located in the vertical space of the pipe and components that are medium and high temperature,
The medium / high temperature pipe component heat insulating material is fixed to the tank heat insulating material by sandwiching a part of the pipe and the component between the tank heat insulating material ,
A hot water storage type hot water supply characterized by having a partition part for separating the upper part and the lower part in a housing space between the medium and high temperature pipe part heat insulating material and the tank heat insulating material, which accommodates the medium and high temperature pipes and parts. system. Accommodating the piping and components becomes the in hot, claim 1 in the accommodating space between the tank insulation material and the the high temperature piping components insulation and having a partition portion separating the upper and lower Or the hot water storage type hot-water supply system of 2. The hot water storage hot water supply according to any one of claims 1 to 5, wherein the tank heat insulating material and the intermediate / high temperature pipe component heat insulating material are coupled and fixed by fitting a concave portion and a convex portion. system.

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