JP4037625B2

JP4037625B2 - Hot water heater

Info

Publication number: JP4037625B2
Application number: JP2001172638A
Authority: JP
Inventors: 道夫中川
Original assignee: Corona Corp
Current assignee: Corona Corp
Priority date: 2001-06-07
Filing date: 2001-06-07
Publication date: 2008-01-23
Anticipated expiration: 2021-06-07
Also published as: JP2002364922A

Description

【０００１】
【発明の属する技術分野】
本発明は屋外に設置する貯湯式温水器に関するものである。
【０００２】
【従来の技術】
従来より、この種の電気温水器やヒートポンプ温水器などの屋外に設置する貯湯式温水器においては、給水配管の接続口および給湯配管の接続口または配管を引き込むための枠体に開口された通し穴は温水器本体の枠体の下側に一組設けられているものであった。
【０００３】
【発明が解決しようとする課題】
ところが、北海道などの寒冷地では、給水配管および給湯配管が建物の天井空間に配設されていることが多く、配管の接続口（または通し穴）が温水器本体の枠体の下側に設けられている従来の温水器を設置しようとする場合、図６に示すように建物からの給水配管および給湯配管を軒下から下方に延長し、そして配管の接続口（または通し穴）へ向けて折り返して配設しなければならないものであったので、延長配管が長いため部材代が多く発生して価格を上げてしまい、かつ、温水器の設置時の作業性が悪いものであったと共に、温水器本体の枠体外で外気にさらされている配管が長いために、冬季にあっては凍結するおそれが高いというものであった。
【０００４】
【課題を解決するための手段】
そこで、本発明は前記課題を解決するため、特にその構成を、給水管および給湯管が接続され加熱された温水を貯湯する貯湯タンクを枠体内に備えた貯湯式温水器において、前記枠体の上部に、前記給水管および給湯管と建物側の給水配管および給湯配管とを接続するための上部給水用通し穴および上部給湯用通し穴を設けたと共に、前記枠体の下部に、前記給水管および給湯管と建物側の給水配管および給湯配管とを接続するための下部給水用通し穴および下部給湯用通し穴を設け、更に前記給水管および給湯管の端部の接続口を、枠体上下中央高さ位置に水平向きに配設し、前記枠体上下の各通し穴を上下対象位置にそれぞれ設けたものとした。
【０００５】
これにより、建物側の給水配管および給湯配管が上方にある場合は、枠体上部の通し穴を用いて給水管および給湯管と接続し、逆に建物側の給水配管および給湯配管が下方にある場合は、枠体下部の通し穴を用いて給水管および給湯管と接続することができ、建物から温水器までの外気にさらされる配管を極力短くすることができる。
【０００９】
更に給水管および給湯管の接続口と枠体上下の通し穴の相対位置が前記接続口を中心として上下対象となるため、温水器の枠体内の給水管および給湯管から枠体上下の各通し穴までの配管を共通のものにして、上下反転して取り付け直すだけで上下どちらの通し穴にも対応させることができ、部材の共通化によるコストダウンおよび設置前の部材選択の手間を省くことができるものである。
【００１０】
【発明の実施の形態】
次に、本発明の第１の実施形態を図１、図２に基づいて説明する。
１は温水器本体の枠体であって、この枠体１内に高温の湯を貯める容量１５０リットルの貯湯タンク２を備えている。
【００１１】
３は前記貯湯タンク２に給水する内部給水管で、端部に接続口４を有すると共に、途中に設けられた減圧弁５で減圧された水が貯湯される。
【００１２】
６は前記貯湯タンク２内の湯または水を循環して加熱するヒートポンプ式の加熱器で、往き管７、戻り管８、および循環ポンプ（図示せず）から構成された循環回路で貯湯タンク２と接続されているものである。
なお、ここで前記加熱器６は温水器本体と別ユニットで構成されたヒートポンプ式のものに限られることはなく、例えば貯湯タンク２内で湯を直接加熱する電熱式ヒータや温水器本体と別ユニットで構成された電熱式ヒータユニットでもよいものである。
【００１３】
９は前記加熱器６で加熱されて貯湯タンク２に貯湯された湯を給湯する内部給湯管で、端部に接続口１０を有すると共に、貯湯タンク２の湯水の温度上昇による増加圧力を逃す圧力逃し弁１１が接続されている。
【００１４】
１２は前記加熱器６と電気的に接続された制御装置で、貯湯タンク２の外周上下に取り付けられた温度センサ１３、１４、１５の検知する温度により貯湯量を検出すると共に、貯湯量が少ないときには加熱器６へ貯湯タンク２内の湯水の加熱を指示するものである。
【００１５】
１６は温水器本体の枠体１を左右に分割して配管室１７を形成する仕切板で、この配管室１７内には前記内部給水管３、給水接続口４、減圧弁５、往き管７、戻り管８、内部給湯管９、給湯接続口１０、圧力逃し弁１１等の配管が配設されているものである。
【００１６】
１８は前記配管室１７を上下に分割して下部に配管接続室１９を形成する区画板で、前記配管接続室１９で前記往き管７、戻り管８の枠体内部配管と外部配管とが連結されるものである。
【００１７】
また、前記区画板１８には、下部給水用通し穴２０および下部給湯用通し穴２１とが開口されており、給水配管Ａおよび給湯配管Ｂが建物の下の方からでている場合にはこの各通し穴２０、２１を通して給水配管Ａおよび給湯配管Ｂを接続するものである。
【００１８】
また、前記枠体１の上部には、上部給水用通し穴２２および上部給湯用通し穴２３とが開口されていると共に、使用しない場合に開口を塞ぐ蓋体２４を有しており、給水配管Ａおよび給湯配管Ｂが建物の上の方からでている場合にはこの各通し穴２２、２３を通して給水配管Ａおよび給湯配管Ｂを接続するものである。
【００１９】
ここで、給水配管Ａおよび給湯配管Ｂが建物の下の方からでている場合には、図１に示すごとく、前記給水接続口４と給水配管Ａとを下部給水用通し穴２０を貫通して設けられる絶縁パイプＣを介して接続すると共に、前記給湯接続口１０と給湯配管Ｂとを下部給湯用通し穴２１を貫通して設けられる絶縁パイプＤを介して接続するものである。このとき、使用しない上部給水用通し穴２２および上部給湯用通し穴２３は蓋体２４により塞がれているため、雨水等の進入のおそれはない。
【００２０】
また、逆に給水配管Ａおよび給湯配管Ｂが建物の上の方からでている場合には、図２に示すごとく、前記給水接続口４と給水配管Ａとを上部給水用通し穴２２を貫通して設けられる絶縁パイプＥを介して接続すると共に、前記給湯接続口１０と給湯配管Ｂとを上部給湯用通し穴２３を貫通して設けられる絶縁パイプＦを介して接続するものである。なお、配管と通し穴２０、２１との隙間はゴム材等により閉塞することが好ましい。
【００２１】
ここで、前記絶縁パイプＣ、Ｄ、Ｅ、Ｆは温水器の設置前に予め建物の配管図等をチェックすることにより、設置する業者等が下部の通し穴２０、２１用の絶縁パイプＣおよびＤか、上部の通し穴２２、２３用の絶縁パイプＥおよびＤのどちらかを用意するようにすればよいものである。
【００２２】
このように、給水配管Ａおよび給湯配管Ｂを温水器に接続するための通し穴２０、２１、２２、２３を温水器の枠体１の上下にそれぞれ設けたので、建物の給水配管Ａおよび給湯配管Ｂが建物の上方あるいは下方のどちらに配設されていても、できるだけ短い延長配管で温水器と接続することができ、延長配管の部材が少なくてすむので余分な部材代を節約でき価格を抑えることができ、かつ配管作業も容易になって作業性が向上すると共に、外気にさらされる配管部分が少なくなるため冬季における凍結のおそれも減少する。
【００２３】
次に、本発明の第２の実施形態について、図３に基づいて説明する。
ここでは、先の第１の実施形態の絶縁パイプＣ、Ｄ、Ｅ、Ｆの代わりに、給水接続口４から下部給水用通し穴２０および上部給水用通し穴２２に分岐した分岐型の絶縁パイプＧと、給湯接続口１０から下部給湯用通し穴２１および上部給湯用通し穴２３に分岐した分岐型の絶縁パイプＨとが接続されているもので、各通し穴２０、２１、２２、２３は各絶縁パイプＧ、Ｈの端部の接続口４Ｇ、４Ｈ、１０Ｇ、１０Ｈで閉塞されているものである。
【００２４】
なお、使用しない側の各絶縁パイプＧ、Ｈの接続口（図３のように接続口４Ｈ、１０Ｇを給水配管Ａおよび給湯配管Ｂに接続した場合は接続口４Ｇ、１０Ｈ）はキャップ（図示せず）等で閉塞しておけばよく、また、各絶縁パイプＧ、Ｈの分岐点に三方弁や二方弁（共に図示せず）を設ければ、分岐点から使用しない側の接続口（図３のように接続口４Ｈ、１０Ｇを給水配管Ａおよび給湯配管Ｂに接続した場合は接続口４Ｇ、１０Ｈ）までの死に水をなくすこともできるものである。また、内部給水管３および内部給湯管９を枠体１の上下の通し穴２０、２１、２２、２３に直接分岐してもよいものであり、この場合は給水配管Ａおよび給湯配管Ｂと内部給水管３および内部給湯管９とを枠体１外で電気的に絶縁するようにすればよいものである。
【００２５】
この第２の実施形態によれば、建物の給水配管Ａおよび給湯配管Ｂが建物の上方あるいは下方のどちらに配設されていても、温水器枠体１の上部および下部に設けられた接続口２４、２５、２６、２７のいずれかのうち給水配管Ａおよび給湯配管Ｂに近い接続口を選んで接続するだけでよく、延長配管の部材が少なくてすむので余分な部材代を節約でき価格を抑えることができ、かつ配管作業もさらに容易になって作業性が向上すると共に、外気にさらされる配管部分が少なくなるため冬季における凍結のおそれも減少する。
【００２６】
次に、本発明の第３の実施形態について、図４に基づいて説明する。
ここでは、先の第１の実施形態における内部給水管３の端部の給水接続口４および内部給湯管９の端部の給湯接続口１０を枠体１の上下の中心高さ位置に水平向きで配置し、枠体１の上下対象位置に通し穴２０、２１、２２、２３を開口したものである。
【００２７】
そして、給水配管Ａおよび給湯配管Ｂが建物の下の方からでている場合には、Ｌ字型の絶縁パイプＩ、Ｊを逆Ｌ字向きで接続して下部給水用通し穴２０および下部給湯用通し穴２１を用いて給水配管Ａおよび給湯配管Ｂと内部給水管３および内部給湯管９とを接続し、また逆に給水配管Ａおよび給湯配管Ｂが建物の上の方からでている場合には、先ほどと同じＬ字型の絶縁パイプＩ、Ｊを正Ｌ字向きに接続し直して上部給水用通し穴２２および上部給湯用通し穴２３を用いて給水配管Ａおよび給湯配管Ｂと内部給水管３および内部給湯管９とを接続することができる。
【００２８】
この第３の実施形態によれば、給水配管Ａおよび給湯配管Ｂを温水器に接続するための通し穴２０、２１、２２、２３を温水器の枠体１の上下にそれぞれ設け、しかも内部の給水接続口４および給湯接続口１０を枠体１の上下の中心高さ位置に水平向きで配置したので、給水接続口４および給湯接続口１０から下部の各通し穴２０、２１への配管と、上部の各通し穴２２、２３への配管を共通化し反転して取り付け直すだけで上下どちらにも対応することができて部材の簡略化ができ、また建物の給水配管Ａおよび給湯配管Ｂが建物の上方あるいは下方のどちらに配設されていても、できるだけ短い延長配管で温水器と接続することができ、延長配管の部材が少なくてすむので余分な部材代を節約でき価格を抑えることができ、かつ配管作業も容易になって作業性が向上すると共に、外気にさらされる配管部分が少なくなるため冬季における凍結のおそれも減少する。
【００２９】
次に、本発明の第４の実施形態について、図５に基づいて説明する。
ここでは、先の第１の実施形態における区画板１８をなくし、枠体１そのものに下部給水用通し穴２０および下部給湯用通し穴２１を開口したものである。ここで、２８はこの温水器を支える支持脚である。また、上部給水用通し穴２２および上部給湯用通し穴２３は枠体１の天面に開口されると共に、そこに内部給水管３および内部給湯管９から直接分岐した上部給水接続口４ａおよび上部給湯接続口１０ａが設けられ、また配管室１７内で下向きに第１の実施形態と同様に給水接続口４および給湯接続口１０が設けられている。そして、建物側給水配管および給湯配管（図示せず）と接続する際に絶縁パイプ（図示せず）を介して接続すればよいものである。なお、上向きに開口している上部給水接続口４ａおよび上部給湯接続口１０ａは不使用時にはキャップ（図示せず）等をかぶせて雨水の進入を防ぐようにしておけばよい。また、上部給水接続口４ａおよび上部給湯接続口１０ｂと上部給水用通し穴２２および上部給湯用通し穴２３とは隙間なくはめ込まれているものであるが、例えばゴム材（図示せず）等により隙間を塞ぐようにしてもよい。
【００３０】
この第４の実施形態によれば、建物の給水配管および給湯配管が建物の上方あるいは下方のどちらに配設されていても、温水器枠体１の上部および下部に設けられた接続口４、１０、４ａ、１０ａのいずれかのうち給水配管および給湯配管に近い接続口を選んで接続するだけでよく、延長配管の部材が少なくてすむので余分な部材代を節約でき価格を抑えることができ、かつ配管作業もさらに容易になって作業性が向上すると共に、外気にさらされる配管部分が少なくなるため冬季における凍結のおそれも減少する。
【００３１】
以上のように、第１〜４の実施形態を通して本発明を説明してきたが、本発明はこれらの実施形態に限定されることなく、発明の要旨を変更しない範囲で種々の変形が可能である。例えば、下部給水用通し穴２０、下部給湯用通し穴２１は給水配管Ａおよび給湯配管Ｂが建物の下方から出ている場合に対応するために温水器枠体１の下部にあればよいもので、これら実施形態のように区画板１８に設けたものに限られることなく、また上部給水用通し穴２２、上部給湯用通し穴２３は給水配管Ａおよび給湯配管Ｂが建物の上方から出ている場合に対応するために温水器枠体１の上部にあればよいもので、温水器枠体１の天面や上部側面にあればよいものである。また、下部給水用通し穴２０および下部給湯用通し穴２１、上部給水用通し穴２２および上部給湯用通し穴２３はそれぞれ一つの開口部で兼用してもよいものである。
【００３２】
【発明の効果】
以上のように、請求項１の発明によれば、建物の水周りの配管が建物の上下どちらにあっても短い配管距離で温水器枠体に引き込むことができ設置時の作業性を向上することができると共に、外気にさらされる配管が少なくなることにより冬季における凍結のおそれが減少するものである。
【００３４】
更に前記請求項１の効果に加え、温水器の枠体内の給水管および給湯管から枠体上下の各通し穴までの配管を共通のものにして、上下反転して取り付け直すだけで上下どちらの通し穴にも対応でき、部材の共通化によるコストダウンおよび設置前の部材選択の手間を省くことができるものである
【図面の簡単な説明】
【図１】本発明の第１の実施形態の下部接続時の概略構成図。
【図２】本発明の第１の実施形態の上部接続時の概略構成図。
【図３】本発明の第２の実施形態の概略構成図。
【図４】本発明の第３の実施形態の概略構成図。
【図５】本発明の第４の実施形態の概略構成図。
【図６】従来例の設置時の概略構成図。
【符号の説明】
１枠体
２貯湯タンク
３内部給水管
４給水接続口
９内部給湯管
１０給湯接続口
２０下部給水用通し穴
２１下部給湯用通し穴
２２上部給水用通し穴
２３上部給湯用通し穴
Ａ建物側給水配管
Ｂ建物側給湯配管[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a hot water storage type water heater installed outdoors.
[0002]
[Prior art]
Conventionally, in hot water storage water heaters installed outdoors such as this type of electric water heater or heat pump water heater, the connection port of the water supply pipe and the connection port of the hot water supply pipe or the through-hole opened to the frame for drawing in the pipe A set of holes was provided on the lower side of the frame of the water heater body.
[0003]
[Problems to be solved by the invention]
However, in cold districts such as Hokkaido, water supply pipes and hot water supply pipes are often installed in the ceiling space of buildings, and pipe connection ports (or through holes) are provided under the frame of the water heater body. When installing a conventional water heater, the water supply pipe and hot water supply pipe from the building are extended downward from the bottom of the eaves as shown in Fig. 6 and folded back toward the connection port (or through hole) of the pipe. Since the extension pipe is long, a lot of material costs are generated and the price is increased, and the workability when installing the water heater is poor. Due to the long piping that was exposed to the outside air outside the frame of the main body, there was a high risk of freezing in winter.
[0004]
[Means for Solving the Problems]
Therefore, in order to solve the above-described problems, the present invention particularly has a configuration in a hot water storage type water heater provided with a hot water storage tank for storing hot water to which heated water is connected and connected to a water supply pipe and a hot water supply pipe. An upper water supply through hole and an upper hot water supply through hole for connecting the water supply pipe and the hot water supply pipe to the water supply pipe and the hot water supply pipe on the building side are provided at the upper part, and the water supply pipe is provided at the lower part of the frame body. And a lower water supply through hole and a lower hot water supply through hole for connecting the hot water supply pipe to the water supply pipe and hot water supply pipe on the building side, and the connection port at the end of the water supply pipe and the hot water supply pipe It was arranged horizontally at the center height position, and each through hole above and below the frame body was provided at each vertical target position .
[0005]
As a result, when the water supply pipe and hot water supply pipe on the building side are on the upper side, the water supply pipe and hot water supply pipe on the building side are on the lower side by connecting to the water supply pipe and hot water supply pipe using the through holes in the upper part of the frame. In this case, the through hole in the lower part of the frame can be used to connect the water supply pipe and the hot water supply pipe, and the pipe exposed to the outside air from the building to the water heater can be made as short as possible.
[0009]
Furthermore, since the relative positions of the connection port of the water supply pipe and the hot water supply pipe and the through hole in the upper and lower sides of the frame body are the upper and lower objects with the connection port as the center, each passage through the upper and lower sides of the frame body from the water supply pipe and hot water supply pipe in the frame of the water heater. The pipe up to the hole can be made common, and it can correspond to both the upper and lower through-holes by simply turning it upside down and re-installing, reducing costs by common parts and eliminating the need to select parts before installation. It is something that can be done.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Next, a first embodiment of the present invention will be described with reference to FIGS.
Reference numeral 1 denotes a frame body of a water heater main body, and the frame body 1 includes a hot water storage tank 2 having a capacity of 150 liters for storing hot water.
[0011]
An internal water supply pipe 3 for supplying water to the hot water storage tank 2 has a connection port 4 at its end and stores water depressurized by a pressure reducing valve 5 provided in the middle.
[0012]
A heat pump type heater 6 circulates and heats the hot water or water in the hot water storage tank 2. The hot water storage tank 2 is a circulation circuit composed of an outgoing pipe 7, a return pipe 8, and a circulation pump (not shown). Is connected to
Here, the heater 6 is not limited to a heat pump type constituted by a separate unit from the main body of the water heater. For example, the heater 6 is different from an electric heater or a main body of the water heater that directly heats hot water in the hot water storage tank 2. An electric heater unit composed of units may be used.
[0013]
Reference numeral 9 denotes an internal hot water supply pipe for supplying hot water stored in the hot water storage tank 2 by being heated by the heater 6, and has a connection port 10 at an end and a pressure for releasing an increased pressure due to a rise in hot water temperature in the hot water storage tank 2. A relief valve 11 is connected.
[0014]
A control device 12 is electrically connected to the heater 6 and detects the amount of stored hot water based on the temperature detected by the temperature sensors 13, 14, and 15 attached to the outer periphery of the hot water storage tank 2, and the amount of stored hot water is small. Sometimes, the heater 6 is instructed to heat the hot water in the hot water storage tank 2.
[0015]
Reference numeral 16 denotes a partition plate that divides the frame 1 of the water heater body into left and right to form a piping chamber 17, and the inside of the piping chamber 17 includes the internal water supply pipe 3, the water supply connection port 4, the pressure reducing valve 5, and the forward pipe 7. The return pipe 8, the internal hot water supply pipe 9, the hot water supply connection port 10, the pressure relief valve 11 and the like are arranged.
[0016]
Reference numeral 18 denotes a partition plate that divides the pipe chamber 17 into upper and lower portions and forms a pipe connection chamber 19 at the lower portion. In the pipe connection chamber 19, the internal pipe and the external pipe of the forward pipe 7 and the return pipe 8 are connected to each other. It is what is done.
[0017]
Further, the partition plate 18 is provided with a lower water supply through hole 20 and a lower hot water supply through hole 21, and when the water supply pipe A and the hot water supply pipe B come from the lower side of the building, The water supply pipe A and the hot water supply pipe B are connected through the through holes 20 and 21.
[0018]
Further, an upper water supply through hole 22 and an upper hot water supply through hole 23 are opened at the upper part of the frame body 1, and a lid body 24 that closes the opening when not in use is provided. When A and the hot water supply pipe B are from the top of the building, the water supply pipe A and the hot water supply pipe B are connected through the through holes 22 and 23.
[0019]
Here, when the water supply pipe A and the hot water supply pipe B come from the lower side of the building, the water supply connection port 4 and the water supply pipe A are passed through the lower water supply through hole 20 as shown in FIG. The hot water supply connection port 10 and the hot water supply pipe B are connected through an insulating pipe D provided through the lower hot water supply through hole 21. At this time, since the upper water supply through hole 22 and the upper hot water supply through hole 23 that are not used are closed by the lid body 24, there is no possibility of rainwater or the like entering.
[0020]
On the contrary, when the water supply pipe A and the hot water supply pipe B come from the upper side of the building, the water supply connection port 4 and the water supply pipe A are passed through the upper water supply through hole 22 as shown in FIG. The hot water supply connection port 10 and the hot water supply pipe B are connected via an insulating pipe F provided through the upper hot water supply through hole 23. The gap between the pipe and the through holes 20 and 21 is preferably closed with a rubber material or the like.
[0021]
Here, the insulation pipes C, D, E, and F are checked in advance by a piping diagram of the building before the installation of the water heater, so that the installation contractor can install the insulation pipe C for the lower through holes 20 and 21 and Either D or the insulating pipes E and D for the upper through holes 22 and 23 may be prepared.
[0022]
Thus, since the through holes 20, 21, 22, and 23 for connecting the water supply pipe A and the hot water supply pipe B to the water heater are respectively provided above and below the frame 1 of the water heater, the water supply pipe A and the hot water supply of the building are provided. Regardless of whether the pipe B is located above or below the building, it can be connected to the water heater with the shortest possible extension pipe, and since there are fewer parts for the extension pipe, extra parts can be saved and the price can be reduced. In addition, the piping work can be facilitated and workability is improved, and the piping portion exposed to the outside air is reduced, so that the possibility of freezing in winter is reduced.
[0023]
Next, a second embodiment of the present invention will be described with reference to FIG.
Here, instead of the insulating pipes C, D, E, and F of the first embodiment, a branched insulating pipe branched from the water supply connection port 4 to the lower water supply through hole 20 and the upper water supply through hole 22. G is connected to a branch-type insulating pipe H branched from the hot water supply connection port 10 to the lower hot water supply through hole 21 and the upper hot water supply through hole 23, and each through hole 20, 21, 22, 23 is The insulating pipes G and H are closed by connection ports 4G, 4H, 10G, and 10H at the ends.
[0024]
Note that the connection ports of the insulation pipes G and H on the unused side (connection ports 4G and 10H when the connection ports 4H and 10G are connected to the water supply pipe A and the hot water supply pipe B as shown in FIG. 3) are caps (not shown). Etc., and if a three-way valve or two-way valve (both not shown) is provided at the branch point of each of the insulation pipes G and H, the connection port on the side not used from the branch point ( When the connection ports 4H and 10G are connected to the water supply pipe A and the hot water supply pipe B as shown in FIG. 3, the water up to the connection ports 4G and 10H) can be eliminated. In addition, the internal water supply pipe 3 and the internal hot water supply pipe 9 may be directly branched into the upper and lower through holes 20, 21, 22, 23 of the frame body 1. In this case, the water supply pipe A and the hot water supply pipe B and the internal The water supply pipe 3 and the internal hot water supply pipe 9 may be electrically insulated outside the frame body 1.
[0025]
According to this 2nd Embodiment, even if the water supply piping A and the hot water supply piping B of a building are arrange | positioned in the upper direction or the downward direction of a building, the connection port provided in the upper part and the lower part of the water heater frame 1 It is only necessary to select and connect the connection port close to the water supply pipe A and the hot water supply pipe B from any one of 24, 25, 26, and 27. Since the number of members of the extension pipe can be reduced, an extra member cost can be saved and the price can be reduced. In addition, the piping work can be further facilitated and the workability is improved, and the piping portion exposed to the outside air is reduced, so that the risk of freezing in the winter season is also reduced.
[0026]
Next, a third embodiment of the present invention will be described with reference to FIG.
Here, the water supply connection port 4 at the end of the internal water supply pipe 3 and the hot water supply connection port 10 at the end of the internal hot water supply pipe 9 in the first embodiment are horizontally oriented at the center height position of the upper and lower sides of the frame 1. The through holes 20, 21, 22, and 23 are opened at the upper and lower target positions of the frame body 1.
[0027]
When the water supply pipe A and the hot water supply pipe B are from the bottom of the building, the L-shaped insulation pipes I and J are connected in the reverse L-shape to connect the lower water supply through hole 20 and the lower hot water supply. When the water supply pipe A and the hot water supply pipe B are connected to the internal water supply pipe 3 and the internal hot water supply pipe 9 using the through-holes 21, and conversely, the water supply pipe A and the hot water supply pipe B are from the top of the building. The same L-shaped insulation pipes I and J as above are reconnected in the positive L-shape, and the upper water supply through hole 22 and the upper hot water supply through hole 23 are used to connect the water supply pipe A and the hot water supply pipe B to the interior. The water supply pipe 3 and the internal hot water supply pipe 9 can be connected.
[0028]
According to the third embodiment, through holes 20, 21, 22, and 23 for connecting the water supply pipe A and the hot water supply pipe B to the water heater are respectively provided above and below the frame 1 of the water heater, Since the water supply connection port 4 and the hot water supply connection port 10 are horizontally disposed at the upper and lower center height positions of the frame 1, piping from the water supply connection port 4 and the hot water supply connection port 10 to the lower through holes 20, 21 The pipes to the upper through holes 22 and 23 can be made common by inverting and reattaching them, so that both the upper and lower sides can be accommodated, the members can be simplified, and the water supply pipe A and the hot water supply pipe B of the building Regardless of whether it is installed above or below the building, it can be connected to the water heater with the shortest possible extension pipe, and the extension pipe can be reduced, so extra parts can be saved and the cost can be reduced. And plumbing With improved workability becomes easier, piping our it also reduces freezing in winter because less exposed to the outside air.
[0029]
Next, a fourth embodiment of the present invention will be described with reference to FIG.
Here, the partition plate 18 in the first embodiment is eliminated, and a lower water supply through hole 20 and a lower hot water supply through hole 21 are opened in the frame 1 itself. Here, 28 is a support leg that supports this water heater. Further, the upper water supply through hole 22 and the upper hot water supply through hole 23 are opened in the top surface of the frame 1, and the upper water supply connection port 4 a and the upper water supply connection port 4 a branched directly from the internal water supply pipe 3 and the internal hot water supply pipe 9 there. A hot water supply connection port 10 a is provided, and a water supply connection port 4 and a hot water supply connection port 10 are provided downward in the piping chamber 17 as in the first embodiment. And what is necessary is just to connect via an insulating pipe (not shown), when connecting with a building side water supply piping and hot water supply piping (not shown). The upper water supply connection port 4a and the upper hot water supply connection port 10a that are open upward may be covered with a cap (not shown) or the like to prevent rainwater from entering when not in use. Further, the upper water supply connection port 4a and the upper hot water supply connection port 10b, the upper water supply through hole 22 and the upper hot water supply through hole 23 are fitted with no gap therebetween. For example, a rubber material (not shown) or the like is used. The gap may be closed.
[0030]
According to the fourth embodiment, regardless of whether the water supply pipe and hot water supply pipe of the building are arranged above or below the building, the connection ports 4 provided at the upper and lower parts of the water heater frame 1, It is only necessary to select and connect the connection port close to the water supply pipe and hot water supply pipe from any one of 10, 4a and 10a, and since there are fewer members of the extension pipe, the extra member cost can be saved and the price can be reduced. In addition, the piping work is further facilitated to improve workability, and the number of piping parts exposed to the outside air is reduced, so that the risk of freezing in winter is reduced.
[0031]
As described above, the present invention has been described through the first to fourth embodiments. However, the present invention is not limited to these embodiments, and various modifications are possible without departing from the scope of the invention. . For example, the lower water supply through-hole 20 and the lower hot-water supply through-hole 21 may be provided at the lower part of the water heater frame 1 in order to cope with the case where the water supply pipe A and the hot water supply pipe B come out from below the building. The upper water supply through hole 22 and the upper hot water supply through hole 23 are not limited to those provided in the partition plate 18 as in these embodiments, and the water supply pipe A and the hot water supply pipe B protrude from the upper side of the building. In order to cope with the case, it suffices if it is on the upper part of the water heater frame 1, and only on the top surface or upper side surface of the water heater frame 1. Further, the lower water supply through hole 20, the lower hot water supply through hole 21, the upper water supply through hole 22, and the upper hot water supply through hole 23 may each be shared by one opening.
[0032]
【The invention's effect】
As described above, according to the first aspect of the present invention, the pipe around the water in the building can be drawn into the water heater frame with a short pipe distance regardless of whether the pipe is above or below the building, thereby improving workability during installation. In addition, the risk of freezing in the winter is reduced by reducing the number of pipes exposed to the outside air.
[0034]
Further , in addition to the effect of the first aspect, the piping from the water supply pipe and the hot water supply pipe in the frame of the water heater to the through holes in the upper and lower sides of the frame body is made common, and either the upper or lower is simply turned upside down. It can also be used for through-holes, which can reduce the cost of using common parts and eliminate the need to select parts prior to installation. [Brief description of drawings]
FIG. 1 is a schematic configuration diagram at the time of lower connection according to a first embodiment of the present invention.
FIG. 2 is a schematic configuration diagram at the time of upper connection according to the first embodiment of the present invention.
FIG. 3 is a schematic configuration diagram of a second embodiment of the present invention.
FIG. 4 is a schematic configuration diagram of a third embodiment of the present invention.
FIG. 5 is a schematic configuration diagram of a fourth embodiment of the present invention.
FIG. 6 is a schematic configuration diagram at the time of installation of a conventional example.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Frame 2 Hot water storage tank 3 Internal water supply pipe 4 Water supply connection port 9 Internal water supply pipe 10 Hot water supply connection port 20 Lower water supply through hole 21 Lower water supply through hole 22 Upper water supply through hole 23 Upper water supply through hole A Building side water supply Piping B Building side hot water supply piping

Claims

A hot water storage hot water heater having a hot water storage tank connected to a hot water pipe and a hot water storage tank that stores heated hot water in the frame body. An upper water supply through hole and an upper hot water supply through hole for connecting to the pipe are provided, and the water supply pipe and the hot water supply pipe are connected to the water supply pipe and the hot water supply pipe on the building side at the lower part of the frame. The lower water supply through hole and the lower hot water supply through hole are provided , and the connection ports at the ends of the water supply pipe and the hot water supply pipe are horizontally disposed at the center vertical position of the frame body, A hot water storage type hot water heater characterized in that each through hole is provided at a vertical target position .