JP2003269659A - Pipe connecting structure of heat exchanger for hot water storage can body - Google Patents
Pipe connecting structure of heat exchanger for hot water storage can bodyInfo
- Publication number
- JP2003269659A JP2003269659A JP2002066439A JP2002066439A JP2003269659A JP 2003269659 A JP2003269659 A JP 2003269659A JP 2002066439 A JP2002066439 A JP 2002066439A JP 2002066439 A JP2002066439 A JP 2002066439A JP 2003269659 A JP2003269659 A JP 2003269659A
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- heat exchanger
- joint member
- hot water
- water storage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/02—Header boxes; End plates
- F28F9/0246—Arrangements for connecting header boxes with flow lines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
- F28D20/0034—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using liquid heat storage material
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Joints With Pressure Members (AREA)
- Details Of Heat-Exchange And Heat-Transfer (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】内部に加熱流体または被加熱
流体を流通させる熱交換器を備えた貯湯缶体の熱交換器
配管接続構造に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat exchanger pipe connection structure for a hot water storage can body having a heat exchanger through which a heating fluid or a heated fluid flows.
【０００２】[0002]
【従来の技術】従来よりこの種のものにおいては、図３
に示すような貯湯式給湯機１において、ヒートポンプユ
ニット２で加熱した高温の温水を貯湯する貯湯缶体３内
に被加熱流体としての風呂４の湯水を流通し加熱する蛇
管より成る熱交換器５を配設したものがある。2. Description of the Related Art Conventionally, in this type, as shown in FIG.
In the hot water storage type hot water supply device 1 as shown in FIG. 5, a heat exchanger 5 including a flexible pipe for circulating and heating the hot and cold water of the bath 4 as the fluid to be heated in the hot water storage can body 3 for storing the hot water heated by the heat pump unit 2. There is one that is equipped with.
【０００３】このような熱交換器５はその配管６を貯湯
缶体３を貫通して取付ける必要があるが、従来は図４に
示すような接続構造であった。すなわち、貯湯缶体３に
外向きに突出したバーリングを有した接続口７を開口
し、配管６端部に設けた継手８の外側端部と接続口７の
バーリング端面９とを貯湯缶体３の外側から溶接して水
密に固定したものであった。In such a heat exchanger 5, it is necessary to attach the pipe 6 thereof through the hot water storage can body 3, but conventionally, a connection structure as shown in FIG. 4 was used. That is, a connection port 7 having a burring protruding outward is opened in the hot water storage canister 3, and the outer end of the joint 8 provided at the end of the pipe 6 and the burring end face 9 of the connection port 7 are connected to each other. It was welded from the outside and fixed in a watertight manner.
【０００４】[0004]
【発明が解決しようとする課題】ところが、この従来の
ものでは、バーリング端面９と継手８を溶接した裏側に
隙間ができ、この隙間にて隙間腐食が発生して貯湯缶体
３に穴を開けてしまう可能性があった。そこで、接続口
７に内向きのバーリングを設け、継手８の内側端部とバ
ーリング端面とを貯湯缶体３の内側から溶接してしまえ
ば隙間ができず問題は解決するが、継手８に配管６並び
に熱交換器５が接続してある状態では貯湯缶体３内側か
らの溶接は困難であった。However, in this conventional device, a gap is formed on the back side where the burring end face 9 and the joint 8 are welded, and crevice corrosion occurs in this gap to make a hole in the hot water storage can body 3. There was a possibility that it would end up. Therefore, if an inward burring is provided at the connection port 7 and the inner end portion of the joint 8 and the burring end surface are welded from the inside of the hot water storage can body 3, a gap will not be formed and the problem will be solved. 6 and the heat exchanger 5 were connected, it was difficult to weld from the inside of the hot water storage canister 3.
【０００５】そこで、この課題を解決するため、本発明
の請求項１では、内部に加熱流体または被加熱流体を流
通させる熱交換器を備えた貯湯缶体において、前記缶体
に開口された接続口と、この接続口に缶体内側から溶接
固定され前記熱交換器の配管を挿通する挿通穴を有した
継手部材と、前記熱交換器の配管外周に設けられた係止
部と、缶体外側で前記継手部材と係合して前記配管を外
周から水密に固定保持する配管固定手段とを備え、前記
熱交換器の配管を前記係止部が前記継手部材に当接する
まで缶体内側から前記継手部材の挿通穴に差し込み、缶
体外側から前記配管固定手段によって配管を水密に固定
するようにした貯湯缶体の熱交換器配管接続構造とした
ものである。Therefore, in order to solve this problem, according to claim 1 of the present invention, in a hot water storage can body having a heat exchanger through which a heating fluid or a heated fluid flows, a connection opened in the can body. Port, a joint member having an insertion hole that is welded and fixed to the connection port from the inside of the can body to insert the pipe of the heat exchanger, a locking portion provided on the outer periphery of the pipe of the heat exchanger, and the can body A pipe fixing means that engages with the joint member on the outside to fix the pipe in a watertight manner from the outer periphery, and holds the pipe of the heat exchanger from the inside of the can until the locking portion comes into contact with the joint member. A heat exchanger pipe connection structure for a hot water storage can body is inserted into the insertion hole of the joint member, and the pipe is watertightly fixed from the outside of the can body by the pipe fixing means.
【０００６】これによって、管が付いていない状態の継
手部材単体で貯湯缶体に溶接し、熱交換器の配管を係止
部が継手部材に当接するまで挿通し、その後に缶体外側
から配管固定手段で配管を固定するようにした接続構造
としたので、配管が付いていない継手部材だけを缶体の
内側から隙間なく容易に溶接することができ、隙間腐食
発生の心配がないと共に、配管を缶体の外側から容易に
固定することができ、組み立てが容易になる。As a result, the joint member alone without the pipe is welded to the hot water storage can body, the pipe of the heat exchanger is inserted until the engaging portion comes into contact with the joint member, and then the pipe is piped from the outside of the can body. Since the connection structure is designed to fix the pipe with the fixing means, only the joint member without the pipe can be easily welded from the inside of the can without any gap, and there is no fear of crevice corrosion. Can be easily fixed from the outside of the can body, which facilitates assembly.
【０００７】また、請求項２では、内部に加熱流体また
は被加熱流体を流通させる熱交換器を備えた貯湯缶体に
おいて、前記缶体に開口された接続口と、この接続口に
缶体内側から溶接固定され前記熱交換器の配管を挿通す
る挿通穴と外端部側の外周に雄ねじ部と内周に収容室と
を有した継手部材と、前記配管を挿通し内周に雌ねじ部
を有した袋ナットと、前記缶体内からの水漏れを防止す
るための樹脂製のＯリングと、前記Ｏリングを前記収容
室壁および前記配管外周に密着させるためのリング状の
カラー部材と、前記配管外周を軸芯方向に押さえるため
のリング状のスリーブ部材と、前記熱交換器の配管外周
に設けられた係止部とを備え、前記収容室には内方から
前記Ｏリング、前記カラー部材、前記スリーブ部材の順
で収容され、前記熱交換器の配管を前記係止部が前記継
手部材に当接するまで缶体内側から前記継手部材の挿通
穴に差し込み、前記配管外周に通した前記袋ナットの雌
ねじ部を前記継手部材の雄ねじ部に螺合して締め込むこ
とで前記スリーブ部材が内方に押されて前記カラー部材
を押し、前記Ｏリングが前記カラー部材に押されて前記
配管外周および前記収容室壁に密着して水漏れを防止
し、前記スリーブ部材が前記袋ナットと前記カラー部材
に挟まれて前記配管外周を軸芯方向に押さえることで前
記配管を固定する貯湯缶体の熱交換器配管接続構造とし
たものである。According to a second aspect of the present invention, in a hot water storage can body having a heat exchanger for circulating a heating fluid or a fluid to be heated therein, a connection port opened to the can body and the inside of the can body at this connection port. A fitting member having a male screw portion on the outer periphery on the outer end side and an insertion hole for welding and fixing the pipe of the heat exchanger fixed by welding, and a female screw portion on the inner periphery through the pipe. A cap nut having, a resin O-ring for preventing water leakage from the can body, a ring-shaped collar member for closely contacting the O-ring with the accommodation chamber wall and the outer circumference of the pipe, A ring-shaped sleeve member for pressing the outer circumference of the pipe in the axial direction and a locking portion provided on the outer circumference of the pipe of the heat exchanger are provided, and the O-ring and the collar member are provided inwardly from the inside of the accommodation chamber. , The sleeve members are accommodated in this order, and Insert the pipe of the exchanger into the insertion hole of the joint member from the inside of the can until the locking portion comes into contact with the joint member, and make the female screw portion of the cap nut passed through the pipe outer periphery the male screw portion of the joint member. By screwing and tightening, the sleeve member is pushed inward to push the collar member, and the O-ring is pushed by the collar member to tightly adhere to the pipe outer periphery and the storage chamber wall to prevent water leakage. A heat exchanger pipe connection structure of a hot water storage can body is provided in which the sleeve member is sandwiched between the cap nut and the collar member to press the pipe outer periphery in the axial direction to fix the pipe.
【０００８】これによって、管が付いていない状態の継
手部材単体で貯湯缶体に溶接することができるため、缶
体の内側から隙間なく容易に溶接することができ、隙間
腐食発生の心配がないと共に、熱交換器の配管を係止部
が継手部材に当接するまで挿通してから、Ｏリング、カ
ラー部材、スリーブ部材を嵌めて袋ナットを締め込むだ
けで容易且つ水密に固定することができ、組み立てが容
易になる。With this, since the joint member alone without the pipe can be welded to the hot water storage can body, it can be welded easily from the inside of the can body without a gap, and there is no fear of crevice corrosion. At the same time, it can be easily and watertightly fixed by inserting the pipe of the heat exchanger until the locking portion abuts the joint member, fitting the O-ring, collar member, and sleeve member and tightening the cap nut. , Easy to assemble.
【０００９】また、請求項３では、前記請求項２のもの
において、前記カラー部材は外端部側に外径を拡大した
段差部を有し、この段差部が前記継手部材に当接するこ
とで前記カラー部材の一定値以上の前記収容室への進入
を規制した貯湯缶体の熱交換器配管接続構造としたもの
である。According to a third aspect of the present invention, in the second aspect, the collar member has a step portion having an enlarged outer diameter on the outer end side, and the step portion abuts on the joint member. The hot water storage can body has a heat exchanger pipe connection structure in which entry of the collar member into the storage chamber is regulated to a certain value or more.
【００１０】これによって、袋ナットを一定値以上締め
込むとカラー部材の段差部が継手部材に当たり、それ以
上カラー部材が収容室の内方に入り込むことを規制して
いるので、スリーブ部材での配管の固定を強固にするた
めに袋ナットを締め付けすぎてもＯリングを潰しすぎる
ことがなく、安定したつぶし代を確保することができる
と共に、スリーブ部材での配管の固定を強固にすること
ができる。Thus, when the cap nut is tightened by a certain amount or more, the stepped portion of the collar member hits the joint member, and the collar member is restricted from entering further into the accommodation chamber. The O-ring will not be crushed too much even if the cap nut is tightened too much in order to firmly fix the above, and a stable crushing allowance can be secured, and the pipe can be firmly fixed to the sleeve member. .
【００１１】[0011]
【発明の実施の形態】次に、本発明の一実施形態を図面
に基づいて説明する。なお、配管接続部を除く全体の構
成は従来と同じであるので、その説明を省略するものと
する。BEST MODE FOR CARRYING OUT THE INVENTION Next, an embodiment of the present invention will be described with reference to the drawings. Since the entire configuration except the pipe connecting portion is the same as the conventional one, the description thereof will be omitted.
【００１２】貯湯缶体３はステンレス板を深絞り加工に
より形成した覆椀状で頂部に温水取出し用の開口部３１
を有した上部鏡板３２と、ステンレス板を筒状に形成し
た胴体３３と、ステンレス板を深絞り加工により形成し
た椀状の下部鏡板３４より構成されているものである。The hot water storage canister 3 has a bowl-like shape formed by deep-drawing a stainless steel plate and has an opening 31 at the top for taking out hot water.
It is composed of an upper end plate 32 having the above, a body 33 formed of a stainless steel plate in a cylindrical shape, and a bowl-shaped lower end plate 34 formed by deep drawing of the stainless steel plate.
【００１３】前記胴体３３には、その側周面に内側へ向
けてバーリング加工された接続口３５が２カ所に設けれ
ている。この接続口３５にはそれぞれ継手部材３６が設
けられ、この継手部材３６にステンレス製管材をコイル
状に巻いた間接熱交換器としての熱交換器５の配管６が
差し込まれて固定されているものである。The body 33 is provided with two burring-inward connection ports 35 on its side peripheral surface at two locations. A joint member 36 is provided in each of the connection ports 35, and a pipe 6 of a heat exchanger 5 as an indirect heat exchanger in which a stainless steel pipe material is wound in a coil shape is inserted and fixed to the joint member 36. Is.
【００１４】そして、この貯湯缶体３の組み立て方を説
明すると、先ず、下部鏡板３４と胴体３３をその端面同
士を突合わせ、胴体３３の開放端側から入れ込んだ溶接
用トーチ（図示せず）により内側から溶接する。次に、
胴体３３に熱交換器５を接続して、胴体３３の開放端と
上部鏡板３２の下部端面を突合わせ、開口部３１から入
れ込んだ溶接用トーチによって内側から溶接することで
組み立てられるものである。The method of assembling the hot water storage canister 3 will be described. First, the welding torch (not shown) in which the lower end plate 34 and the body 33 are abutted with each other at their end faces and inserted from the open end side of the body 33. ) To weld from the inside. next,
The heat exchanger 5 is connected to the body 33, the open end of the body 33 and the lower end face of the upper end plate 32 are butted against each other, and the welding torch inserted from the opening 31 is used for welding from the inside. .
【００１５】ここで、熱交換器５の配管６の接続構造に
ついて説明すると、前記継手部材３６は配管６を挿通す
る挿通穴３６１を有しており、この継手部材３６の内側
端面３６２と缶体３の接続口３５のバーリング端面３５
１とを合わせて缶体３の内側から溶接されているもので
ある。The connection structure of the pipe 6 of the heat exchanger 5 will now be described. The joint member 36 has an insertion hole 361 for inserting the pipe 6, and the inner end surface 362 of the joint member 36 and the can body. Burring end face 35 of connection port 35 of No. 3
1 and 1 are welded together from the inside of the can body 3.
【００１６】なお、継手部材３６の外周の中間部にはフ
ランジ部３６３が設けられ、缶体３の外側からこの継手
部材３６を接続口３５に差し込むと前記フランジ部３６
３が缶体３の外周に当接して継手部材３６の内側端面３
６２と接続口３５のバーリング端面３５１が面一になる
ように合わせられるものである。A flange portion 363 is provided in the intermediate portion of the outer periphery of the joint member 36, and when the joint member 36 is inserted into the connection port 35 from the outside of the can body 3, the flange portion 36 is formed.
3 comes into contact with the outer circumference of the can body 3 and the inner end surface 3 of the joint member 36
62 and the burring end surface 351 of the connection port 35 are aligned so as to be flush with each other.
【００１７】前記熱交換器５の配管６の外周には、ビー
ド状に形成された係止部６１が設けられており、缶体３
の内側から前記継手部材３６の挿通穴３６１に差し込ん
だ時に、継手部材３６に当接してそれ以上の差し込みを
規制するものである。On the outer periphery of the pipe 6 of the heat exchanger 5, a bead-shaped engaging portion 61 is provided, and the can body 3
When it is inserted into the insertion hole 361 of the joint member 36 from the inside, it comes into contact with the joint member 36 and restricts further insertion.
【００１８】そして、缶体３の外側から前記配管６を前
記継手部材３６と係合する配管固定手段１０によって水
密に固定保持するので、配管６が付いていない状態の継
手部材３６を缶体３の内側から隙間なく容易に溶接する
ことができ、隙間腐食発生の心配がないと共に、配管６
を缶体３の外側から容易に固定することができ、組み立
てが容易になる。Since the pipe 6 is watertightly fixed and held from the outside of the can body 3 by the pipe fixing means 10 which engages with the joint member 36, the joint member 36 without the pipe 6 is attached to the can body 3. It can be easily welded from the inside of the pipe without any gaps, and there is no concern about crevice corrosion occurring.
Can be easily fixed from the outside of the can body 3, and the assembling becomes easy.
【００１９】ここで、前記配管固定手段１０の具体例を
詳細に説明する。前記継手部材３６には、その外端部側
外周に雄ねじ部３６４が設けられており、外端部側の内
周にには挿通穴３６１より一回り内径の大きい収容室３
６５が設けられている。Here, a specific example of the pipe fixing means 10 will be described in detail. The joint member 36 is provided with a male screw portion 364 on the outer periphery on the outer end side thereof, and the accommodation chamber 3 having an inner diameter slightly larger than the insertion hole 361 on the inner periphery on the outer end portion side.
65 is provided.
【００２０】前記収容室３６５には、缶体３内からの水
漏れを防止するための樹脂製のＯリング１１と、このＯ
リング１１を収容室３６５の底面および内壁面と配管６
の外周面に押し付けて密着させるリング状のカラー部材
１２と、配管６の外周を軸芯方向に押さえつけるための
スリーブ部材１３とがこの順で収容されるものである。In the accommodating chamber 365, an O-ring 11 made of resin for preventing water leakage from the inside of the can body 3 and the O-ring 11 are provided.
The ring 11 is connected to the bottom surface and the inner wall surface of the accommodation chamber 365 and the pipe 6.
A ring-shaped collar member 12 that is pressed against the outer peripheral surface of the pipe 6 to be brought into close contact therewith, and a sleeve member 13 that presses the outer periphery of the pipe 6 in the axial direction are housed in this order.
【００２１】なお、前記カラー部材１２はその外端部側
内周にスリーブ部材１３を軸芯方向に押さえるためのテ
ーパ面１２１と、外端部側の外周に一回り外径を拡大し
た段差部１２２とを有している。The collar member 12 has a tapered surface 121 for holding the sleeve member 13 in the axial direction on the inner circumference of the outer end portion thereof, and a step portion having a slightly enlarged outer diameter on the outer circumference of the outer end portion. And 122.
【００２２】また、前記スリーブ部材１３は、その断面
形状をリング状の内周を配管６の外周に沿う直線形状と
し、リング状の外周をアーチ状としているものである。The sleeve member 13 has a cross-sectional shape in which a ring-shaped inner circumference is linear along the outer circumference of the pipe 6 and a ring-shaped outer circumference is arch-shaped.
【００２３】１４は配管６を挿通する穴部１４１と内周
に雌ねじ部１４２とが設けられた袋ナットで、穴部１４
１の内端部側には前記スリーブ部材１３を軸芯方向に押
さえるためのテーパ面１４３を有している。Reference numeral 14 denotes a cap nut having a hole 141 for inserting the pipe 6 and an internal thread 142 on the inner circumference.
A taper surface 143 for pressing the sleeve member 13 in the axial direction is provided on the inner end side of 1.
【００２４】そして、配管６を固定する際は、前記配管
６をその係止部６１が継手部材３６に当接するまで缶体
３の内側から差し込み、配管６外側端部からＯリング１
１とカラー部材１２とスリーブ部材１３と袋ナット１４
を配管６外周に嵌める。When the pipe 6 is fixed, the pipe 6 is inserted from the inside of the can body 3 until the engaging portion 61 contacts the joint member 36, and the O-ring 1 is inserted from the outside end of the pipe 6.
1, collar member 12, sleeve member 13, cap nut 14
Is fitted on the outer circumference of the pipe 6.
【００２５】そして、Ｏリング１１とカラー部材１２を
継手部材３６の収容室３６５に押し込んで収容し、スリ
ーブ部材１３をカラー部材１２のテーパ面１１１に押し
付ける。Then, the O-ring 11 and the collar member 12 are pushed into the accommodation chamber 365 of the joint member 36 to be accommodated therein, and the sleeve member 13 is pressed against the tapered surface 111 of the collar member 12.
【００２６】そして、袋ナット１４の雌ねじ部１４２と
継手部材３６の雄ねじ部３６４とを係合して袋ナット１
４を締め込んでいくと、スリーブ部材１３とカラー部材
１２が収容室３６５内側に移動され、Ｏリング１１が収
容室３６５の底面および内壁面と配管６の外周に押し付
けられて密着し、缶体３内からの水漏れを防止する。Then, the female screw portion 142 of the cap nut 14 and the male screw portion 364 of the joint member 36 are engaged with each other to make the cap nut 1
As 4 is tightened, the sleeve member 13 and the collar member 12 are moved to the inside of the accommodation chamber 365, and the O-ring 11 is pressed against the bottom surface and the inner wall surface of the accommodation chamber 365 and the outer periphery of the pipe 6 to be in close contact with each other. Prevent water leakage from inside 3.
【００２７】またこの時、ある程度カラー部材１２が収
容室３６５内に移動すると、カラー部材１２の段差部１
２２が継手部材３６の外側端部の一部に当接し、それ以
上の移動を規制される。これによって、Ｏリング１１を
潰しすぎることがなく、安定したつぶし代を確保するこ
とができ、Ｏリング１１の寿命も長くなって確実に水密
にシールすることが可能となるものである。At this time, when the collar member 12 moves to the inside of the accommodating chamber 365 to some extent, the step portion 1 of the collar member 12 is moved.
22 contacts a part of the outer end portion of the joint member 36, and further movement is restricted. As a result, the O-ring 11 is not crushed too much, a stable crushing allowance can be secured, the life of the O-ring 11 is extended, and a reliable watertight seal can be achieved.
【００２８】そして、カラー部材１２の移動が規制され
ると、袋ナット１４の穴部１４１に設けたテーパ面１４
３とカラー部材１２に設けたテーパ面１２１とにスリー
ブ部材１３が強固に挟まれ、スリーブ部材１３が配管６
の軸芯方向に変形し、配管６を強固に固定することがで
きる。When the movement of the collar member 12 is restricted, the tapered surface 14 provided in the hole 141 of the cap nut 14
3 and the tapered surface 121 provided on the collar member 12, the sleeve member 13 is firmly sandwiched, and the sleeve member 13 is connected to the pipe 6
The pipe 6 can be firmly fixed by being deformed in the axial direction.
【００２９】このように、配管固定手段１０を構成する
ことで、配管６の固定を強固にでき、確実に水密にシー
ルして水漏れを防ぎ、しかも固定作業が非常に容易とな
るものである。なお、配管固定手段１０はこの一実施形
態に限られるものではなく、発明の要旨を変更しない範
囲で種々の変形が可能なものである。By constructing the pipe fixing means 10 in this way, the pipe 6 can be firmly fixed, and the pipe 6 can be reliably sealed in a watertight manner to prevent water leakage, and the fixing work becomes very easy. . The pipe fixing means 10 is not limited to this embodiment, and various modifications can be made without departing from the spirit of the invention.
【００３０】[0030]
【発明の効果】以上のように、本発明の請求項１では、
管が付いていない状態の継手部材単体で貯湯缶体に溶接
し、熱交換器の配管を継手部材に挿通してから缶体外側
から配管固定手段で配管を固定するようにしたので、缶
体の内側から隙間なく容易に溶接することができ、隙間
腐食発生の心配がないと共に、配管を缶体の外側から容
易に固定することができ、組み立てが容易になる。As described above, according to claim 1 of the present invention,
Since the joint member alone without the pipe is welded to the hot water storage can body, the pipe of the heat exchanger is inserted into the joint member, and then the pipe is fixed by the pipe fixing means from the outside of the can body. It can be easily welded from the inner side of the can without any gap, and there is no fear of crevice corrosion, and the pipe can be easily fixed from the outer side of the can body, which facilitates assembly.
【００３１】また、請求項２では、管が付いていない状
態の継手部材単体で貯湯缶体に溶接することができるた
め、缶体の内側から隙間なく容易に溶接することがで
き、隙間腐食発生の心配がないと共に、熱交換器の配管
を継手部材に挿通してから袋ナットを締め込むだけで容
易且つ水密に固定することができ、組み立てが容易にな
る。Further, according to the second aspect of the present invention, since the joint member alone without the pipe can be welded to the hot water storage can body, it can be welded easily from the inside of the can body without a gap, and crevice corrosion occurs. In addition, the heat exchanger can be easily and watertightly fixed by simply inserting the pipe of the heat exchanger into the joint member and then tightening the cap nut, which facilitates the assembly.
【００３２】また、請求項３では、袋ナットを一定値以
上締め込むとカラー部材の段差部が継手部材に当たり、
それ以上カラー部材が収容室の内方に入り込むことを規
制しているので、スリーブ部材での配管の固定を強固に
するために袋ナットを締め付けすぎてもＯリングを潰し
すぎることがなく、安定したつぶし代を確保することが
できると共に、スリーブ部材での配管の固定を強固にす
ることができる。Further, in the third aspect, when the cap nut is tightened by a predetermined value or more, the stepped portion of the collar member comes into contact with the joint member,
Since the collar member is restricted from entering the inside of the storage chamber any more, the O-ring will not be crushed too much even if the cap nut is tightened too much to firmly fix the pipe with the sleeve member, and it is stable. The crushing margin can be secured, and the pipe can be firmly fixed to the sleeve member.
【図１】本発明の一実施形態の貯湯缶体の要部断面図。FIG. 1 is a sectional view of an essential part of a hot water storage can body according to an embodiment of the present invention.
【図２】同一実施形態の配管接続構造を説明する要部断
面図。FIG. 2 is a sectional view of an essential part for explaining a pipe connection structure of the same embodiment.
【図３】同一実施形態および従来例の貯湯式給湯機の概
略構成図。FIG. 3 is a schematic configuration diagram of hot water storage water heaters of the same embodiment and a conventional example.
【図４】従来例の配管接続構造を説明する要部断面図。FIG. 4 is a cross-sectional view of an essential part for explaining a conventional pipe connection structure.
３ 貯湯缶体 ３５ 接続口 ３６ 継手部材 ３６１ 挿通穴 ３６４ 雄ねじ部 ３６５ 収容室 ５ 熱交換器 ６ 配管 ６１ 係止部 １０ 配管固定手段 １１ Ｏリング １２ カラー部材 １２２ 段差部 １３ スリーブ部材 １４ 袋ナット １４２ 雌ねじ部 3 Hot water storage cans 35 connection 36 Joint member 361 insertion hole 364 male thread 365 accommodation room 5 heat exchanger 6 piping 61 Locking part 10 Pipe fixing means 11 O-ring 12 color members 122 step 13 Sleeve member 14 cap nuts 142 female thread
Claims (3)
させる熱交換器を備えた貯湯缶体において、前記缶体に
開口された接続口と、この接続口に缶体内側から溶接固
定され前記熱交換器の配管を挿通する挿通穴を有した継
手部材と、前記熱交換器の配管外周に設けられた係止部
と、缶体外側で前記継手部材と係合して前記配管を外周
から水密に固定保持する配管固定手段とを備え、前記熱
交換器の配管を前記係止部が前記継手部材に当接するま
で缶体内側から前記継手部材の挿通穴に差し込み、缶体
外側から前記配管固定手段によって配管を水密に固定す
るようにした貯湯缶体の熱交換器配管接続構造。1. A hot water storage can body having a heat exchanger for circulating a heating fluid or a fluid to be heated therein, and a connection port opened to the can body, and a welding port fixed to the connection port from the inside of the can body. A joint member having an insertion hole for inserting the pipe of the heat exchanger, a locking portion provided on the outer periphery of the pipe of the heat exchanger, and the joint member engaged with the joint member on the outside of the can body to form the pipe from the outer periphery. A pipe fixing means for fixing and holding in a watertight manner, the pipe of the heat exchanger is inserted into the insertion hole of the joint member from the inside of the can until the locking portion comes into contact with the joint member, and the pipe from the outside of the can. A heat exchanger pipe connection structure for a hot water storage can body in which the pipe is watertightly fixed by a fixing means.
させる熱交換器を備えた貯湯缶体において、前記缶体に
開口された接続口と、この接続口に缶体内側から溶接固
定され前記熱交換器の配管を挿通する挿通穴と外端部側
の外周に雄ねじ部と内周に収容室とを有した継手部材
と、前記配管を挿通し内周に雌ねじ部を有した袋ナット
と、前記缶体内からの水漏れを防止するための樹脂製の
Ｏリングと、前記Ｏリングを前記収容室壁および前記配
管外周に密着させるためのリング状のカラー部材と、前
記配管外周を軸芯方向に押さえるためのリング状のスリ
ーブ部材と、前記熱交換器の配管外周に設けられた係止
部とを備え、前記収容室には内方から前記Ｏリング、前
記カラー部材、前記スリーブ部材の順で収容され、前記
熱交換器の配管を前記係止部が前記継手部材に当接する
まで缶体内側から前記継手部材の挿通穴に差し込み、前
記配管外周に通した前記袋ナットの雌ねじ部を前記継手
部材の雄ねじ部に螺合して締め込むことで前記スリーブ
部材が内方に押されて前記カラー部材を押し、前記Ｏリ
ングが前記カラー部材に押されて前記配管外周および前
記収容室壁に密着して水漏れを防止し、前記スリーブ部
材が前記袋ナットと前記カラー部材に挟まれて前記配管
外周を軸芯方向に押さえることで前記配管を固定する貯
湯缶体の熱交換器配管接続構造。2. A hot water storage can body having a heat exchanger for circulating a heating fluid or a fluid to be heated therein, and a connection port opened to the can body, and a welding port fixed to the connection port from the inside of the can body. A joint member having an insertion hole for inserting the pipe of the heat exchanger and a male screw portion on the outer periphery on the outer end side and a storage chamber on the inner periphery, and a cap nut having the female screw portion on the inner periphery for inserting the pipe. A resin-made O-ring for preventing water leakage from the can body; a ring-shaped collar member for bringing the O-ring into close contact with the accommodation chamber wall and the pipe outer circumference; A ring-shaped sleeve member for pressing in the direction and a locking portion provided on the outer circumference of the pipe of the heat exchanger are provided, and the O-ring, the collar member, and the sleeve member are provided inward from the inside of the storage chamber. The heat exchanger pipes are housed in order. Insert the inner threaded portion of the cap nut, which is passed through the outer circumference of the pipe, into the male threaded portion of the joint member until the locking portion comes into contact with the joint member and is inserted into the insertion hole of the joint member from the inside of the can body. As a result, the sleeve member is pushed inward and pushes the collar member, and the O-ring is pushed by the collar member to tightly adhere to the outer circumference of the pipe and the wall of the storage chamber to prevent water leakage. Is a heat exchanger pipe connection structure for a hot water storage can body in which the pipe is fixed by being sandwiched between the cap nut and the collar member and pressing the pipe outer periphery in the axial direction.
した段差部を有し、この段差部が前記継手部材に当接す
ることで前記カラー部材の一定値以上の前記収容室への
進入を規制したことを特徴とする請求項１記載の貯湯缶
体の熱交換器配管接続構造。3. The collar member has a step portion with an enlarged outer diameter on the outer end side, and when the step portion abuts on the joint member, the collar member has a predetermined value or more to reach the storage chamber. The heat exchanger pipe connection structure for a hot water storage can body according to claim 1, wherein entry is restricted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002066439A JP2003269659A (en) | 2002-03-12 | 2002-03-12 | Pipe connecting structure of heat exchanger for hot water storage can body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002066439A JP2003269659A (en) | 2002-03-12 | 2002-03-12 | Pipe connecting structure of heat exchanger for hot water storage can body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2003269659A true JP2003269659A (en) | 2003-09-25 |
Family
ID=29198216
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2002066439A Pending JP2003269659A (en) | 2002-03-12 | 2002-03-12 | Pipe connecting structure of heat exchanger for hot water storage can body |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2003269659A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006128716A1 (en) * | 2005-06-02 | 2006-12-07 | Burgmann Industries Gmbh & Co. Kg | Arrangement for mounting a flow pipe in a pipe passage opening in a wall |
| JP2007247959A (en) * | 2006-03-15 | 2007-09-27 | Mitsubishi Rayon Co Ltd | Acid-resistant joint for fixed seal |
| JP2010091408A (en) * | 2008-10-08 | 2010-04-22 | Fumio Utsue | Mounting structure for pipe measuring instrument |
| WO2013084804A1 (en) * | 2011-12-07 | 2013-06-13 | 三菱重工業株式会社 | Support structure for cylindrical tube, and sealing method for cylindrical tube |
| WO2019000759A1 (en) * | 2017-06-29 | 2019-01-03 | 广船国际有限公司 | Cable sealing assembly of cold storage cabin wall |
| CN110360867A (en) * | 2019-07-11 | 2019-10-22 | 豫新汽车热管理科技有限公司 | A kind of structure that is connected of warm air radiator water pipe and pipe fitting |
-
2002
- 2002-03-12 JP JP2002066439A patent/JP2003269659A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006128716A1 (en) * | 2005-06-02 | 2006-12-07 | Burgmann Industries Gmbh & Co. Kg | Arrangement for mounting a flow pipe in a pipe passage opening in a wall |
| JP2007247959A (en) * | 2006-03-15 | 2007-09-27 | Mitsubishi Rayon Co Ltd | Acid-resistant joint for fixed seal |
| JP2010091408A (en) * | 2008-10-08 | 2010-04-22 | Fumio Utsue | Mounting structure for pipe measuring instrument |
| WO2013084804A1 (en) * | 2011-12-07 | 2013-06-13 | 三菱重工業株式会社 | Support structure for cylindrical tube, and sealing method for cylindrical tube |
| WO2019000759A1 (en) * | 2017-06-29 | 2019-01-03 | 广船国际有限公司 | Cable sealing assembly of cold storage cabin wall |
| CN110360867A (en) * | 2019-07-11 | 2019-10-22 | 豫新汽车热管理科技有限公司 | A kind of structure that is connected of warm air radiator water pipe and pipe fitting |
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