JP2860942B2 - Hot water supply header - Google Patents
Hot water supply headerInfo
- Publication number
- JP2860942B2 JP2860942B2 JP1072337A JP7233789A JP2860942B2 JP 2860942 B2 JP2860942 B2 JP 2860942B2 JP 1072337 A JP1072337 A JP 1072337A JP 7233789 A JP7233789 A JP 7233789A JP 2860942 B2 JP2860942 B2 JP 2860942B2
- Authority
- JP
- Japan
- Prior art keywords
- thermoplastic resin
- cross
- resin layer
- crosslinked
- hot water
- 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.)
- Expired - Lifetime
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims description 34
- 229920005992 thermoplastic resin Polymers 0.000 claims description 81
- 239000010410 layer Substances 0.000 claims description 67
- 238000010438 heat treatment Methods 0.000 claims description 14
- 238000004132 cross linking Methods 0.000 claims description 6
- 229920005989 resin Polymers 0.000 claims description 6
- 239000011347 resin Substances 0.000 claims description 6
- 238000002347 injection Methods 0.000 claims description 5
- 239000007924 injection Substances 0.000 claims description 5
- 239000002344 surface layer Substances 0.000 claims description 3
- 229920000098 polyolefin Polymers 0.000 description 32
- 239000004033 plastic Substances 0.000 description 6
- 238000007789 sealing Methods 0.000 description 6
- 239000002184 metal Substances 0.000 description 5
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000037431 insertion Effects 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 238000010030 laminating Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- MYRTYDVEIRVNKP-UHFFFAOYSA-N 1,2-Divinylbenzene Chemical compound C=CC1=CC=CC=C1C=C MYRTYDVEIRVNKP-UHFFFAOYSA-N 0.000 description 2
- VXNZUUAINFGPBY-UHFFFAOYSA-N 1-Butene Chemical compound CCC=C VXNZUUAINFGPBY-UHFFFAOYSA-N 0.000 description 2
- 150000001735 carboxylic acids Chemical class 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 239000003431 cross linking reagent Substances 0.000 description 2
- 230000002542 deteriorative effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 238000005304 joining Methods 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- 239000004711 α-olefin Substances 0.000 description 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- WSSSPWUEQFSQQG-UHFFFAOYSA-N 4-methyl-1-pentene Chemical compound CC(C)CC=C WSSSPWUEQFSQQG-UHFFFAOYSA-N 0.000 description 1
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 1
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 150000001244 carboxylic acid anhydrides Chemical class 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000007334 copolymerization reaction Methods 0.000 description 1
- 230000032798 delamination Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- -1 ethylene, propylene Chemical group 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- VOZRXNHHFUQHIL-UHFFFAOYSA-N glycidyl methacrylate Chemical compound CC(=C)C(=O)OCC1CO1 VOZRXNHHFUQHIL-UHFFFAOYSA-N 0.000 description 1
- 229920001519 homopolymer Polymers 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 1
- 239000011976 maleic acid Substances 0.000 description 1
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 150000001451 organic peroxides Chemical class 0.000 description 1
- 150000002924 oxiranes Chemical class 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/24—Pipe joints or couplings
- B29L2031/246—T-joints
Landscapes
- Branch Pipes, Bends, And The Like (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は給湯器等の熱源機器から、温水を使用場所に
分配するための給油用ヘッダーに関するものである。Description: TECHNICAL FIELD The present invention relates to a refueling header for distributing hot water from a heat source device such as a water heater to a place of use.
第３図は給湯配管系を示す配管図である。図におい
て、１はヘッダーで、給湯器等の熱源機器２から供給さ
れる温水を分配して、台所の蛇口３、洗面所の蛇口４、
浴室の蛇口５等に分配するようになっている。熱源機器
２は給水管６から供給される水を、ガス管７から供給さ
れるガスの燃焼により加熱し、給湯主管８からヘッダー
１に供給するようになっている。FIG. 3 is a piping diagram showing a hot water supply piping system. In the figure, reference numeral 1 denotes a header, which distributes hot water supplied from a heat source device 2 such as a water heater, a faucet 3 in a kitchen, a faucet 4 in a washroom,
It is distributed to the faucet 5 and the like in the bathroom. The heat source device 2 heats water supplied from the water supply pipe 6 by burning gas supplied from the gas pipe 7, and supplies the water from the hot water supply main pipe 8 to the header 1.
ヘッダー１は金属により中空状に形成され、１個の入
口側受口11および複数の同径の出口側受口12a、12b、12
c、12d…が設けられている。入口側受口11は給湯主管８
に、出口側受口12a、12b、12c、12d…は分岐管13a、13
b、13c、13d…にそれぞれねじ等の固着手段により接続
している。分岐管13a…は口径が蛇口３、４、５にそれ
ぞれの容量に応じた温水を供給するような分岐管になっ
ている。The header 1 is formed in a hollow shape by metal, and has one inlet side receiving port 11 and a plurality of outlet side receiving ports 12a, 12b, 12 having the same diameter.
c, 12d ... are provided. Entrance side inlet 11 is hot water supply main pipe 8
The outlet-side receiving ports 12a, 12b, 12c, 12d,.
are connected to b, 13c, 13d,... by fixing means such as screws. The branch pipes 13a are configured to supply hot water to the faucets 3, 4, and 5 according to their capacities.
しかしながら従来のヘッダー１は金属により成形され
ているため、腐食しやすく、重質であるとともに、プラ
スチック配管との接続が困難であり、大量生産に適して
いないという問題点があった。However, since the conventional header 1 is formed of metal, it has a problem that it is easily corroded and heavy, and it is difficult to connect with a plastic pipe, which is not suitable for mass production.
本発明の目的は、上記問題点を解決するため、軽量で
耐食性があり、プラスチック配管との接続が容易で、大
量生産に適した給湯用ヘッダーを提供することである。An object of the present invention is to provide a header for hot water supply which is lightweight, has corrosion resistance, can be easily connected to a plastic pipe, and is suitable for mass production in order to solve the above problems.
本発明は、表層または全体が熱可塑性樹脂からなる被
接続配管に接合されて、熱源機器からの温水を分配する
ための給湯用ヘッダーであって、 架橋熱可塑性樹脂により中空状に成形されたヘッダー
本体と、 架橋熱可塑性樹脂によりヘッダー本体と一体成形され
た管状の入口側受口および複数の出口側受口とを備え、 この受口の少なくとも一つが、架橋熱可塑性樹脂層の
被接続配管との接続部に一体的に積層された非架橋熱可
塑性樹脂層を受口の内側に有するとともに、非架橋熱可
塑性樹脂層の内部、外表面または内表面に設けられた電
熱線を有し、かつ 受口の外側部を形成する架橋熱可塑性樹脂層は非架橋
熱可塑性樹脂層の両端部側に、非架橋熱可塑性樹脂層が
端部側に露出するのを防止するように形成された被接続
配管近接部を有し、 前記ヘッダー本体および受口は、電熱線を設けた管状
の非架橋熱可塑性樹脂層を射出成形型内にインサートし
た状態で架橋性熱可塑性樹脂を射出して積層一体化した
後、架橋性熱可塑性樹脂を架橋させて形成されているこ
とを特徴とする給湯用ヘッダーである。The present invention relates to a hot water supply header for joining hot water from a heat source device, which is joined to a connected pipe whose surface layer or the whole is made of a thermoplastic resin, wherein the header is formed of a crosslinked thermoplastic resin into a hollow shape. A main body, comprising a tubular inlet side receiving port and a plurality of outlet side receiving ports integrally formed with the header main body by a crosslinked thermoplastic resin, at least one of the receiving ports is connected to a connected pipe of the crosslinked thermoplastic resin layer. Having a non-crosslinked thermoplastic resin layer integrally laminated on the connection portion inside the receptacle, and having a heating wire provided on the inside, outer surface or inner surface of the non-crosslinked thermoplastic resin layer, and The cross-linked thermoplastic resin layer forming the outer portion of the receiving port is connected at both ends of the non-cross-linked thermoplastic resin layer so as to prevent the non-cross-linked thermoplastic resin layer from being exposed at the end. It has a pipe proximity part, The header main body and the receiving port are formed by injecting a cross-linkable thermoplastic resin in a state where a tubular non-cross-linked thermoplastic resin layer provided with a heating wire is inserted into an injection mold, and laminating and integrating the cross-linked thermoplastic resin. A hot water supply header formed by crosslinking a resin.
本発明では、架橋熱可塑性樹脂層の一端部と非架橋熱
可塑性樹脂層とは隣接して一体化している。架橋熱可塑
性樹脂は融着性を有しないため、架橋後の架橋熱可塑性
樹脂と非架橋熱可塑性樹脂を射出成形等により成形して
も、それぞれの層は分離して一体化しないが、未架橋の
架橋性熱可塑性樹脂と非架橋熱可塑性樹脂とを加熱成形
して一体化し、その後架橋性熱可塑性樹脂を架橋させる
と、架橋熱可塑性樹脂と非架橋熱可塑性樹脂が一体化し
た積層体が得られる。本発明ではこのように架橋熱可塑
性樹脂層と非架橋熱可塑性樹脂層が一体化した積層体を
使用する。架橋熱可塑性樹脂層は非架橋熱可塑性樹脂層
の両端部側に被接続配管近接部を有し、非架橋熱可塑性
樹脂層が端部側に露出するのを防止している。In the present invention, one end of the crosslinked thermoplastic resin layer and the non-crosslinked thermoplastic resin layer are adjacently integrated. Since the crosslinked thermoplastic resin does not have fusibility, even if the crosslinked thermoplastic resin and the non-crosslinked thermoplastic resin after crosslinking are molded by injection molding or the like, the respective layers are not separated and integrated, but are not crosslinked. When the crosslinkable thermoplastic resin and the non-crosslinkable thermoplastic resin are heat molded and integrated, and then the crosslinkable thermoplastic resin is crosslinked, a laminate in which the crosslinkable thermoplastic resin and the non-crosslinkable thermoplastic resin are integrated is obtained. Can be In the present invention, a laminate in which the crosslinked thermoplastic resin layer and the non-crosslinked thermoplastic resin layer are integrated as described above is used. The crosslinked thermoplastic resin layer has connected pipe adjacent portions on both end sides of the non-crosslinked thermoplastic resin layer to prevent the non-crosslinked thermoplastic resin layer from being exposed to the end.
熱可塑性樹脂は、熱可塑性樹脂の分子間架橋により立
体構造となったものであり、シラン架橋熱可塑性樹脂、
ジビニルベンゼン架橋熱可塑性樹脂などの架橋剤により
架橋したもののほか、有機過酸化物、放射線等により直
接架橋したものでもよい。The thermoplastic resin has a three-dimensional structure due to intermolecular crosslinking of the thermoplastic resin, and a silane crosslinked thermoplastic resin,
In addition to those crosslinked with a crosslinking agent such as a divinylbenzene crosslinked thermoplastic resin, those directly crosslinked with an organic peroxide, radiation or the like may be used.
非架橋熱可塑性樹脂は一般に熱可塑性樹脂として使用
されている架橋性を有しないポリオレフィン等の樹脂を
例示できる。The non-crosslinked thermoplastic resin can be exemplified by a resin such as a polyolefin having no crosslinking property, which is generally used as a thermoplastic resin.
本発明に係わる熱可塑性樹脂としてはポリオレフィン
を例示でき、ポリオレフィンとしては、炭素数２〜20、
好ましくは２〜12のα−オレフィンの単独または共重合
体があげられる。好ましいα−オレフィンとしては、エ
チレン、プロピレン、ブテン−１、４−メチルペンテン
−１などがあげられる。Examples of the thermoplastic resin according to the present invention include polyolefins, and the polyolefins may have 2 to 20 carbon atoms.
Preferably, a homopolymer or a copolymer of 2 to 12 α-olefins is used. Preferred α-olefins include ethylene, propylene, butene-1, 4-methylpentene-1 and the like.
一部の受口に非架橋熱可塑性樹脂層および電熱線を形
成する場合、その受口には通常の配管との接続部材を取
付けることができる。接続部材としては、ねじ等の接続
端末への接続部を一端に有する金属管などが使用でき
る。接続部材と架橋熱可塑性樹脂層との固着は、変性熱
可塑性樹脂等の接着性材料により接着するのが好まし
い。接着性材料は接続部材と架橋熱可塑性樹脂層との間
に介在させるのが好ましいが、架橋熱可塑性樹脂層に分
散していてもよい。When a non-crosslinked thermoplastic resin layer and a heating wire are formed in some of the ports, a connection member for ordinary piping can be attached to the ports. As the connection member, a metal tube or the like having a connection portion to a connection terminal such as a screw at one end can be used. It is preferable that the connection member and the crosslinked thermoplastic resin layer be fixed by an adhesive material such as a modified thermoplastic resin. The adhesive material is preferably interposed between the connecting member and the crosslinked thermoplastic resin layer, but may be dispersed in the crosslinked thermoplastic resin layer.
変性熱可塑性樹脂としては、ポリオレフィンをアクリ
ル酸、マイレン酸などの不飽和カルボン酸；無水マイレ
ン酸など不飽和カルボン酸無水物；不飽和カルボン酸の
アミド；グリシジルメタクリレートなどの不飽和エポキ
シド等の変性モノマーグラフト共重合することによって
変性したものがある。変性熱可塑性樹脂中の変性モノマ
ーの含有量は変性熱可塑性樹脂に対し0.001ないし５重
量％であることが望ましい。Examples of the modified thermoplastic resin include polyolefins modified with unsaturated carboxylic acids such as acrylic acid and maleic acid; unsaturated carboxylic anhydrides such as maleic anhydride; amides of unsaturated carboxylic acids; and unsaturated monomers such as unsaturated epoxides such as glycidyl methacrylate. Some are modified by graft copolymerization. The content of the modifying monomer in the modified thermoplastic resin is preferably 0.001 to 5% by weight based on the modified thermoplastic resin.
本発明の給湯用ヘッダーは、内部、外表面、または内
表面に電熱線を配置した管状の非架橋熱可塑性樹脂層
を、射出成形型内にインサートした状態で、架橋性熱可
塑性樹脂を射出して積層一体化した後、架橋性熱可塑性
樹脂層を架橋させて架橋熱可塑性樹脂層を形成すること
により製造される。接続部材を取付ける場合は、後から
取付けてもよいが、変性熱可塑性樹脂等の接着性材料を
コーティングした接続部材をインサートして射出成形す
ることもできる。この場合、接着性材料は非架橋熱可塑
性樹脂層にコーティングせず、射出する架橋性熱可塑性
樹脂中に分散させておいてもよい。The header for hot water supply of the present invention injects a cross-linkable thermoplastic resin in a state where a tubular non-cross-linked thermoplastic resin layer in which a heating wire is disposed on the inner, outer, or inner surface is inserted into an injection mold. After lamination and integration, the cross-linkable thermoplastic resin layer is cross-linked to form a cross-linked thermoplastic resin layer. When attaching the connecting member, it may be attached later, but it is also possible to insert and insert the connecting member coated with an adhesive material such as a modified thermoplastic resin and to perform injection molding. In this case, the adhesive material may not be coated on the non-crosslinked thermoplastic resin layer, but may be dispersed in the injected crosslinkable thermoplastic resin.
こうして製造された給湯用ヘッダーは、熱源機器から
の給湯主管を入口側受口に接続し、各蛇口等への分岐管
を出口側受口に接続して使用する。このとき接続部材を
取付けた場合は、被接続配管の接続端末に接続部材を接
続し、熱可塑性樹脂チューブ等のプラスチック製の被接
続配管を非架橋熱可塑性樹脂層と接するように取付け、
電熱線に通電すると、非架橋熱可塑性樹脂層が溶融して
被接続配管に一体的に融着する。これによりヘッダーと
被接続配管とを漏洩防止状態で確実に接続することがで
きる。この場合架橋熱可塑性樹脂層が被架橋熱可塑性樹
脂層の両端部側に被接続配管近接部を有し、非架橋熱可
塑性樹脂層が端部側に露出しないため、非架橋熱可塑性
樹脂が軟化したときに端部から流出してシール性が低下
するのが防止される。The hot water supply header thus manufactured is used by connecting a main pipe for supplying hot water from a heat source device to an inlet port, and connecting branch pipes to each faucet to an outlet port. At this time, when the connection member is attached, the connection member is connected to the connection terminal of the connected pipe, and the connected pipe made of plastic such as a thermoplastic resin tube is attached so as to be in contact with the non-crosslinked thermoplastic resin layer,
When the heating wire is energized, the non-crosslinked thermoplastic resin layer melts and fuses integrally with the connected pipe. This makes it possible to reliably connect the header and the connected pipe in a leak-proof state. In this case, the cross-linked thermoplastic resin layer has portions near the connected pipes at both end sides of the cross-linked thermoplastic resin layer, and the non-cross-linked thermoplastic resin layer is not exposed to the end side, so that the non-cross-linked thermoplastic resin is softened. When it does, it is prevented from flowing out of the end portion and deteriorating the sealing performance.
被接続配管としては表層または全体が熱可塑性樹脂、
特に相溶性を有する樹脂からなるものが好ましく、非架
橋の熱可塑性樹脂からなるものは特に優れた融着性を示
す。As the connected piping, the surface layer or the whole is thermoplastic resin,
In particular, a resin made of a compatible resin is preferable, and a resin made of a non-crosslinked thermoplastic resin shows particularly excellent fusion property.
以下、本発明の実施例を図面により説明する。第１図
および第２図は別の実施例の給湯用ヘッダーの一部を断
面で示す正面図である。Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 and FIG. 2 are front views showing a part of a hot water supply header of another embodiment in cross section.
ヘッダー１は、中空状のヘッダー本体1aと、管状の入
口側受口11および複数の出口側受口12a、12b、12c、12d
の架橋ポリオレフィン層21とが架橋ポリオレフィンによ
り一体成形されている。入口側受口11はヘッダー１の一
端側に開口し、出口側受口12a…はこれと直角方向に開
口するように列状に設けられている。The header 1 includes a hollow header body 1a, a tubular inlet port 11 and a plurality of outlet ports 12a, 12b, 12c, 12d.
And the crosslinked polyolefin layer 21 are integrally formed of the crosslinked polyolefin. The inlet-side receptacles 11 are provided on one end side of the header 1, and the outlet-side receptacles 12a are provided in a row so as to open in a direction perpendicular to this.
受口11、12a…のうち、第１図ではすべての受口、第
２図では出口側受口12a…12dは、ヘッダー本体1aと一体
成形された管状の架橋ポリオレフィン層21の内周面に、
管状の非架橋ポリオレフィン層22が架橋ポリオレフィン
層21と一体化するように積層され、その内部にコイル状
の電熱線23が埋設されて、接続端子24、25に接続し、エ
レクトロフュージョン継手を形成している。第２図の入
口側受口11には接続部材26が取付けられている。非架橋
ポリオレフィン層22の両端部側の架橋ポリオレフィン層
21には、被接続配管である給湯主管８または分岐管13
a、13b…に近接する被接続配管近接部20が形成されてお
り、これにより非架橋ポリオレフィン層22が端部側に露
出するのを防止している。Of the receiving ports 11, 12a, all receiving ports in FIG. 1 and outlet ports 12a, 12d in FIG. 2 are provided on the inner peripheral surface of a tubular cross-linked polyolefin layer 21 integrally formed with the header body 1a. ,
A tubular non-crosslinked polyolefin layer 22 is laminated so as to be integrated with the crosslinked polyolefin layer 21, and a coil-shaped heating wire 23 is buried therein, connected to the connection terminals 24 and 25 to form an electrofusion joint. ing. A connecting member 26 is attached to the inlet port 11 in FIG. Crosslinked polyolefin layers at both ends of non-crosslinked polyolefin layer 22
21 is a hot water supply main pipe 8 or a branch pipe 13 which is a connected pipe.
A connected pipe proximity portion 20 adjacent to a, 13b,... is formed, thereby preventing the non-crosslinked polyolefin layer 22 from being exposed to the end.
接続部材26は金属管からなり、挿入部26aの反対側の
突出部26bには接続部としてのねじ部27が形成され、中
間部には六角形のスパナ掛け28が形成されている。変性
ポリオレフィン層29は接続部材26の挿入部26aと架橋ポ
リオレフィン層21間の全周にわたって介在し、両者を接
着している。The connecting member 26 is formed of a metal tube, and a screw portion 27 as a connecting portion is formed on the protruding portion 26b opposite to the insertion portion 26a, and a hexagonal spanner hook 28 is formed on an intermediate portion. The modified polyolefin layer 29 is interposed over the entire circumference between the insertion portion 26a of the connecting member 26 and the crosslinked polyolefin layer 21, and adheres the two.
上記のヘッダー１は、内部、外表面または内表に電熱
線23を埋設または巻き付けた非架橋ポリオレフィン層22
を射出成形型内にインサートした状態で、ポリオレフィ
ン中に架橋剤、架橋助剤等を含む架橋性ポリオレフィン
を射出して積層一体化した後、上記架橋性ポリオレフィ
ン層を架橋させて架橋ポリオレフィン層21を形成するこ
とにより製造される。接続部材26は後で取付けるか、あ
るいは外表面に変性ポリオレフィン層29をコーティング
した接続部材26の挿入部26aをインサートして射出成形
する。The above-mentioned header 1 comprises a non-crosslinked polyolefin layer 22 in which a heating wire 23 is embedded or wound on the inside, the outer surface or the inner surface.
After inserting the crosslinkable polyolefin containing a crosslinking agent, a crosslinking aid and the like into the polyolefin in a state of being inserted into the injection mold, and laminating and integrating, the crosslinkable polyolefin layer is crosslinked to form the crosslinked polyolefin layer 21. It is manufactured by forming. The connecting member 26 is attached later, or injection-molded by inserting the insertion portion 26a of the connecting member 26 whose outer surface is coated with the modified polyolefin layer 29.
こうして製造されたヘッダー１は、熱源機器２からの
給湯主管８を入口側受口11に接続し、各蛇口３、４、５
等への分岐管13a、13b、13c、13dを出口側受口12a、12
b、12c、12dに接続して使用する。このとき第２図のよ
うに接続部材26を取付けた場合は、被接続配管である給
湯主管８の接続端末に接続部材26を接続し、他のポリオ
レフィンチューブ等のプラスチック製の被接続配管であ
る第２図の分岐管13a、13b、13c、13d、ならびに第１図
の給湯主管８および各分岐管13a…を、各受口11、12a…
の非架橋ポリオレフィン層22と接するように取付け、接
続端子24、25から電熱線23に通電すると、非架橋ポリオ
レフィン層22が溶融して被接続配管に一体的に融着す
る。これによりヘッダー１と被接続配管とを漏洩防止状
態で確実に接続することができる。この場合架橋ポリオ
レフィン層21が非架橋ポリオレフィン層22の両端部側に
被接続配管近接部20を有するので、非架橋ポリオレフィ
ン層22が端部側に露出せず、このため非架橋ポリオレフ
ィン層22が軟化したときに端部から流出してシール性が
低下するのが防止される。The header 1 manufactured in this manner connects the hot water supply main pipe 8 from the heat source equipment 2 to the inlet-side receiving port 11, and the taps 3, 4, 5
Branch pipes 13a, 13b, 13c, 13d to outlet side receiving ports 12a, 12
Use by connecting to b, 12c, 12d. At this time, when the connecting member 26 is attached as shown in FIG. 2, the connecting member 26 is connected to the connection terminal of the hot water supply main pipe 8 which is the connected pipe, and the connected pipe is made of plastic such as another polyolefin tube. The branch pipes 13a, 13b, 13c, 13d in FIG. 2 and the hot water supply main pipe 8 and each branch pipe 13a in FIG.
When the heating wire 23 is supplied from the connection terminals 24 and 25 and the heating wire 23 is applied, the non-crosslinked polyolefin layer 22 is melted and integrally fused to the pipe to be connected. Thereby, the header 1 and the connected pipe can be reliably connected in a leak-proof state. In this case, since the crosslinked polyolefin layer 21 has the connected pipe proximity portions 20 at both ends of the noncrosslinked polyolefin layer 22, the noncrosslinked polyolefin layer 22 is not exposed to the end, and therefore the noncrosslinked polyolefin layer 22 is softened. When it does, it is prevented from flowing out of the end portion and deteriorating the sealing performance.
接続部材26は被接続配管が金属管の場合に適し、エレ
クトロフュージョン継手はプラスチック管の場合に適し
ているので、それぞれに対応して配置することができ
る。The connecting member 26 is suitable for a case where the connected pipe is a metal pipe, and the electrofusion joint is suitable for a case where the connected pipe is a plastic pipe.
上記のヘッダー１は、架橋ポリオレフィン層21が耐熱
強度を負担するので、給湯管の接続に用いても形状保持
性に優れる。一方架橋ポリオレフィン層21が接続部材26
および非架橋ポリオレフィン層22と一体化した状態で、
非架橋ポリオレフィン層22が非接続配管に融着して一体
化するため、シール性に優れ、給湯管に用いても長期に
わたってシール性を保持する。Since the crosslinked polyolefin layer 21 bears heat resistance, the header 1 is excellent in shape retention even when used for connecting a hot water supply pipe. On the other hand, the crosslinked polyolefin layer 21 is
And in a state integrated with the non-crosslinked polyolefin layer 22,
Since the non-crosslinked polyolefin layer 22 is fused and integrated with the non-connection pipe, the sealing property is excellent, and the sealing property is maintained for a long time even when used for a hot water supply pipe.
なお第２図の実施例では、入口側受口11に他の接続部
材26を設けたが、出口側受口12a…の一部に設けてもよ
い。また接続部材26としては、ねじ以外の接合手段を有
するものでもよい。In the embodiment shown in FIG. 2, another connecting member 26 is provided at the inlet port 11 but may be provided at a part of the outlet ports 12a. Further, the connecting member 26 may have a joining means other than the screw.
本発明によれば、架橋熱可塑性樹脂からなるヘッダー
本体に設けられた受口に非架橋熱可塑性樹脂層および電
熱線を設けたので、耐熱強度およびシール性に優れ、軽
量で耐食性があり、プラスチック配管との接続が容易
で、大量生産に適した給湯用ヘッダーが得られる。また
架橋熱可塑性樹脂層が非架橋熱可塑性樹脂層の両端部側
に被接続配管近接部を有するので、非架橋熱可塑性樹脂
層が端部側に露出せず、このため非架橋熱可塑性樹脂層
が軟化したときに端部から流出してシール性が低下する
のが防止される。According to the present invention, since the non-crosslinked thermoplastic resin layer and the heating wire are provided in the socket provided in the header body made of the crosslinked thermoplastic resin, the heat resistance and the sealing properties are excellent, the weight is light, the corrosion resistance is high, and the plastic is used. A header for hot water supply that can be easily connected to piping and is suitable for mass production can be obtained. In addition, since the crosslinked thermoplastic resin layer has connected pipe adjacent portions at both end sides of the noncrosslinked thermoplastic resin layer, the noncrosslinked thermoplastic resin layer is not exposed to the end side, and thus the noncrosslinked thermoplastic resin layer is not exposed. Is prevented from flowing out of the end portion when softened and the sealing performance is degraded.
さらに電熱線を設けた管状の非架橋熱可塑性樹脂層を
射出成形型内にインサートして架橋性熱可塑性樹脂を射
出して積層一体化した後、架橋性熱可塑性樹脂を架橋し
て製造するようにしたので、架橋熱可塑性樹脂層と非架
橋熱可塑性樹脂層が一体化して、層間剥離が生じない複
雑な形状の給湯用ヘッダーを効率よく製造することがで
きる。Furthermore, after inserting a tubular non-crosslinked thermoplastic resin layer provided with a heating wire into an injection mold, injecting a crosslinkable thermoplastic resin and laminating and integrating the same, the crosslinkable thermoplastic resin is crosslinked to be manufactured. Because of this, the crosslinked thermoplastic resin layer and the non-crosslinked thermoplastic resin layer are integrated, and a hot water supply header having a complicated shape in which delamination does not occur can be efficiently manufactured.
【図面の簡単な説明】 第１図および第２図は別の実施例の給湯用ヘッダーの一
部を断面で示す正面図、第３図は給湯配管系の配管図で
ある。 各図中、同一符号は同一または相当部分を示し、１はヘ
ッダー、２は熱源機器、３、４、５は蛇口、８は給湯主
管、11は入口側受口、12a…は出口側受口、13a…は分岐
管、21は架橋ポリオレフィン層、22は非架橋ポリオレフ
ィン層、23は電熱線である。BRIEF DESCRIPTION OF THE DRAWINGS FIGS. 1 and 2 are front views showing a part of a hot water supply header of another embodiment in cross section, and FIG. 3 is a piping diagram of a hot water supply piping system. In the drawings, the same reference numerals denote the same or corresponding parts, 1 is a header, 2 is a heat source device, 3, 4, and 5 are faucets, 8 is a hot water supply main pipe, 11 is an inlet-side inlet, 12a ... is an outlet-side inlet. , 13a... Are branch pipes, 21 is a crosslinked polyolefin layer, 22 is a non-crosslinked polyolefin layer, and 23 is a heating wire.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 西村 寛之 大阪府大阪市中央区平野町４丁目１番２ 号 大阪瓦斯株式会社内 (72)発明者 中芝 明雄 大阪府大阪市中央区平野町４丁目１番２ 号 大阪瓦斯株式会社内 (72)発明者 長谷 文夫 山口県玖珂郡和木町和木６丁目１番２号 三井石油化学工業株式会社内 (72)発明者 水戸 和憲 山口県玖珂郡和木町和木６丁目１番２号 三井石油化学工業株式会社内 (72)発明者 柴渕 利夫 大阪府大阪市住之江区南加賀屋２丁目10 番16号 新和産業株式会社内 (72)発明者 中岡 幹夫 大阪府大阪市住之江区南加賀屋２丁目10 番16号 新和産業株式会社内 (56)参考文献 特開 昭63−163089（ＪＰ，Ａ) 特開 昭53−96062（ＪＰ，Ａ) 特開 昭63−152792（ＪＰ，Ａ) 特開 昭63−67494（ＪＰ，Ａ) 特開 昭62−255692（ＪＰ，Ａ) 実開 昭59−110493（ＪＰ，Ｕ) 実開 昭54−175612（ＪＰ，Ｕ) 仏国特許公開2606487（ＦＲ，Ａ１) ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Hiroyuki Nishimura 4-1-2, Hirano-cho, Chuo-ku, Osaka City, Osaka Prefecture Inside Osaka Gas Co., Ltd. (72) Inventor Akio Nakashiba 4 1-2 1-2 Osaka Gas Co., Ltd. (72) Inventor Fumio Hase 61-2-2 Waki-machi, Waki-machi, Kuga-gun, Yamaguchi Prefecture Mitsui Petrochemical Industry Co., Ltd. 6-1-2 Kimachi Waki Mitsui Petrochemical Industry Co., Ltd. (72) Inventor Toshio Shibuchi 2-10-16 Minamikagaya, Suminoe-ku, Osaka-shi, Osaka Shinwa Sangyo Co., Ltd. (72) Inventor Nakaoka Mikio 2-10-16 Minamikagaya, Suminoe-ku, Osaka-shi Shinwa Sangyo Co., Ltd. (56) References JP-A-63-163089 (JP, A) JP-A-53-96062 (JP, A) JP-A-63-152792 (JP, A) JP-A-63-67494 (JP, A) JP-A-62-255692 (JP, A) JP-A-59-110493 (JP, U) JP-A-54-175612 (JP, A) JP, U) French Patent Publication 2606487 (FR, A1)
Claims (1)
接続配管に接合されて、熱源機器からの温水を分配する
ための給湯用ヘッダーであって、 架橋熱可塑性樹脂により中空状に成形されたヘッダー本
体と、 架橋熱可塑性樹脂によりヘッダー本体と一体成形された
管状の入口側受口および複数の出口側受口とを備え、 この受口の少なくとも一つが、架橋熱可塑性樹脂層の被
接続配管との接続部に一体的に積層された非架橋熱可塑
性樹脂層を受口の内側に有するとともに、非架橋熱可塑
性樹脂層の内部、外表面または内表面に設けられた電熱
線を有し、かつ 受口の外側部を形成する架橋熱可塑性樹脂層は非架橋熱
可塑性樹脂層の両端部側に、非架橋熱可塑性樹脂層が端
部側に露出するのを防止するように形成された被接続配
管近接部を有し、 前記ヘッダー本体および受口は、電熱線を設けた管状の
非架橋熱可塑性樹脂層を射出成形型内にインサートした
状態で架橋性熱可塑性樹脂を射出して積層一体化した
後、架橋性熱可塑性樹脂を架橋させて形成されているこ
とを特徴とする給湯用ヘッダー。1. A hot water supply header for distributing hot water from a heat source device, which is joined to a connected pipe whose surface layer or the whole is made of a thermoplastic resin, and is formed into a hollow shape by a crosslinked thermoplastic resin. A header main body, a tubular inlet-side inlet and a plurality of outlet-side inlets integrally formed with the header main body with a cross-linked thermoplastic resin, at least one of which is connected to a cross-linked thermoplastic resin layer connected pipe. Having a non-crosslinked thermoplastic resin layer integrally laminated at the connection portion with the inside of the receiving port, and having a heating wire provided on the inside, outer surface or inner surface of the non-crosslinked thermoplastic resin layer, The cross-linked thermoplastic resin layer forming the outer portion of the receiving port is formed on both ends of the non-cross-linked thermoplastic resin layer so as to prevent the non-cross-linked thermoplastic resin layer from being exposed to the ends. It has a connection pipe proximity part, After the header main body and the receiving port are laminated and integrated by injecting a cross-linkable thermoplastic resin in a state where a tubular non-cross-linked thermoplastic resin layer provided with a heating wire is inserted into an injection mold, the cross-linkable thermoplastic resin is formed. A hot water supply header formed by crosslinking a resin.
Priority Applications (13)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1072337A JP2860942B2 (en) | 1989-03-24 | 1989-03-24 | Hot water supply header |
| US07/462,717 US5150922A (en) | 1989-01-11 | 1990-01-09 | Electrofusion joint and hot water supply header using the same |
| CA002007520A CA2007520C (en) | 1989-01-11 | 1990-01-10 | Electrofusion joint and hot water supply header using the same |
| AT90300307T ATE123860T1 (en) | 1989-01-11 | 1990-01-11 | ELECTROWELDING JOINT AND USE THEREOF IN A HOT WATER DISTRIBUTOR. |
| EP93118038A EP0585974B1 (en) | 1989-01-11 | 1990-01-11 | Electrofusion joint and hot water supply header using the same |
| DE69019998T DE69019998T2 (en) | 1989-01-11 | 1990-01-11 | Electric welding connection and its use in a hot water distributor. |
| ES90300307T ES2075877T3 (en) | 1989-01-11 | 1990-01-11 | ELECTROFUSION UNION AND COLLECTOR OF HOT WATER SUPPLY THAT USES IT. |
| DK90300307.7T DK0378406T3 (en) | 1989-01-11 | 1990-01-11 | Electro-melt collection and hot water supply collector pipes using the same |
| EP90300307A EP0378406B1 (en) | 1989-01-11 | 1990-01-11 | Electrofusion joint and hot water supply header using the same |
| AT93118038T ATE166442T1 (en) | 1989-01-11 | 1990-01-11 | ELECTROWELDING JOINT AND USE THEREOF IN A HOT WATER DISTRIBUTOR |
| DE69032332T DE69032332T2 (en) | 1989-01-11 | 1990-01-11 | Electric welding connection and its use in a hot water distributor |
| US07/913,632 US5366253A (en) | 1989-01-11 | 1992-07-16 | Electrofusion joint and hot water supply header using the same |
| US08/067,083 US5375889A (en) | 1989-01-11 | 1993-05-26 | Electrofusion joint and hot water supply header using the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1072337A JP2860942B2 (en) | 1989-03-24 | 1989-03-24 | Hot water supply header |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02253084A JPH02253084A (en) | 1990-10-11 |
| JP2860942B2 true JP2860942B2 (en) | 1999-02-24 |
Family
ID=13486378
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1072337A Expired - Lifetime JP2860942B2 (en) | 1989-01-11 | 1989-03-24 | Hot water supply header |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2860942B2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2606487A1 (en) | 1986-11-07 | 1988-05-13 | Silix | Tubes based on a polyolefin-type resin for producing pipelines, sleeves for assembling them and method for manufacturing them |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6222712Y2 (en) * | 1978-05-31 | 1987-06-09 | ||
| JPS59110493U (en) * | 1983-01-17 | 1984-07-25 | 三菱電線工業株式会社 | header tube |
-
1989
- 1989-03-24 JP JP1072337A patent/JP2860942B2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2606487A1 (en) | 1986-11-07 | 1988-05-13 | Silix | Tubes based on a polyolefin-type resin for producing pipelines, sleeves for assembling them and method for manufacturing them |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02253084A (en) | 1990-10-11 |
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