JPS61153849U - - Google Patents
Info
- Publication number
- JPS61153849U JPS61153849U JP3535585U JP3535585U JPS61153849U JP S61153849 U JPS61153849 U JP S61153849U JP 3535585 U JP3535585 U JP 3535585U JP 3535585 U JP3535585 U JP 3535585U JP S61153849 U JPS61153849 U JP S61153849U
- Authority
- JP
- Japan
- Prior art keywords
- water
- valve
- heat exchanger
- drain
- water supply
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 30
- 230000002265 prevention Effects 0.000 claims 3
- 230000008014 freezing Effects 0.000 claims 2
- 238000007710 freezing Methods 0.000 claims 2
- 238000002485 combustion reaction Methods 0.000 claims 1
- 230000007423 decrease Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 230000002528 anti-freeze Effects 0.000 description 1
Landscapes
- Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
Description
第１図は本考案の給湯器の凍結防止装置の一実
施例を示す断面図、第２図は第１図の給水用電磁
弁とその電気回路を示す図、第３図は第１図の水
抜弁の詳細を示す断面図、第４図は第１図の低温
作動弁の詳細を示す断面図、第５図は従来例を示
す断面図である。
図中、２は熱交換器、８，１０は給水管、７，
１８は給水開閉弁である給水バルブ及び電磁弁、
１５は低温作動弁、１２は給湯出口側管、２０は
水抜弁である。
Fig. 1 is a sectional view showing an embodiment of the water heater antifreeze device of the present invention, Fig. 2 is a diagram showing the water supply solenoid valve shown in Fig. 1 and its electric circuit, and Fig. 3 is a diagram showing the water supply solenoid valve shown in Fig. 1 and its electric circuit. FIG. 4 is a sectional view showing details of the water drain valve, FIG. 4 is a sectional view showing details of the low temperature operating valve of FIG. 1, and FIG. 5 is a sectional view showing a conventional example. In the figure, 2 is a heat exchanger, 8, 10 are water supply pipes, 7,
18 is a water supply valve and a solenoid valve which are water supply opening/closing valves;
15 is a low temperature operation valve, 12 is a hot water supply outlet side pipe, and 20 is a water drain valve.
Claims (1)
熱交換器を有する給湯器において、前記熱交換器
の給水管に給水開閉弁を設けると共に熱交換器の
給湯出口側管に、所定温度以下となつたとき大気
開放する低温作動弁を設け、前記熱交換器の底部
の給水管に水抜部を接続すると共に該水抜部に、
給水圧で閉じかつ前記低温作動弁が大気開放され
たとき開く水抜弁を設けたことを特徴とする給湯
器の凍結防止装置。 (2) 前記水抜弁が、水抜部を開閉する弁体と、
その弁体を作動するダイヤフラムとからなり、そ
のダイヤフラムに給水圧を作用させて水抜部を閉
じると共に、前記低温作動弁が大気開放されて熱
交換器の水圧が低下したときダイヤフラムにより
水抜部を開くようにした実用新案登録請求の範囲
第１項に記載の給湯器の凍結防止装置。 (3) 給水開閉弁が給湯停止時に閉じる電磁開閉
弁である実用新案登録請求の範囲第１項又は第２
項に記載の給湯器の凍結防止装置。[Claims for Utility Model Registration] (1) In a water heater having a heat exchanger that heats supplied water with combustion heat to supply hot water, a water supply opening/closing valve is provided in the water supply pipe of the heat exchanger, and a heat exchanger is provided. A low-temperature operation valve that opens to the atmosphere when the temperature drops below a predetermined temperature is provided on the hot water outlet side pipe of the heat exchanger, and a water drain is connected to the water supply pipe at the bottom of the heat exchanger, and the water drain is connected to the water drain.
A freezing prevention device for a water heater, characterized in that a water drain valve is provided which closes when the water supply pressure is applied and opens when the low-temperature operating valve is opened to the atmosphere. (2) the drain valve includes a valve body that opens and closes a drain section;
It consists of a diaphragm that operates the valve body, and the water supply pressure is applied to the diaphragm to close the water drain section, and the diaphragm opens the water drain section when the low temperature operating valve is opened to the atmosphere and the water pressure of the heat exchanger decreases. A freezing prevention device for a water heater according to claim 1 of the utility model registration claim. (3) Scope of utility model registration claims, paragraph 1 or 2, where the water supply on-off valve is an electromagnetic on-off valve that closes when hot water supply is stopped.
Freeze prevention device for water heaters as described in section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3535585U JPS61153849U (en) | 1985-03-14 | 1985-03-14 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3535585U JPS61153849U (en) | 1985-03-14 | 1985-03-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61153849U true JPS61153849U (en) | 1986-09-24 |
Family
ID=30539557
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3535585U Pending JPS61153849U (en) | 1985-03-14 | 1985-03-14 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61153849U (en) |
-
1985
- 1985-03-14 JP JP3535585U patent/JPS61153849U/ja active Pending
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