JPS5931971Y2 - temperature pressure safety valve - Google Patents
temperature pressure safety valveInfo
- Publication number
- JPS5931971Y2 JPS5931971Y2 JP12429579U JP12429579U JPS5931971Y2 JP S5931971 Y2 JPS5931971 Y2 JP S5931971Y2 JP 12429579 U JP12429579 U JP 12429579U JP 12429579 U JP12429579 U JP 12429579U JP S5931971 Y2 JPS5931971 Y2 JP S5931971Y2
- Authority
- JP
- Japan
- Prior art keywords
- valve
- pressure
- spring
- port
- temperature
- 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
Links
Landscapes
- Temperature-Responsive Valves (AREA)
- Safety Valves (AREA)
Description
【考案の詳細な説明】
本考案は、湯水口に送られてくる湯水の温度と圧力とを
感知して、その湯水の温度が設定した温度以上になった
とき、及び圧力が設定した圧力以上になったときに閉弁
作動して、湯水を排出口に逃がす温度圧力安全弁につい
ての改良に関するものである。[Detailed description of the invention] This invention detects the temperature and pressure of hot water sent to the hot water inlet, and when the temperature of the hot water exceeds the set temperature and the pressure exceeds the set pressure. This invention relates to an improvement in a temperature and pressure safety valve that closes when the temperature reaches 100 degrees and releases hot water to the outlet.
従前の温度圧力安全弁Ｂは、第２図に示している如く、
排出口と連通した弁室内に、その弁室と浸入口とを連通
ずる弁口２０を開閉する弁体を配設し、その弁体を水圧
に対応する所望のバネ圧に設定して弁室内に配設せる押
圧バネＷで弁口２０を閉塞する側に付勢し、かつ、浸入
口側にセンサ部４１を配設したサーモスタット４の作動
ロッド４２をこの弁体の前記浸入口側に衝合させて構成
しており、湯温の上昇により弁口２０を開放するよう作
動したサーモスタット４の作動ロッド４２の復帰を、圧
力上昇の際に弁口２０を開放さすよう弁体に作用させた
前述の押圧バネＷで行なうようにしているので、設定す
る圧力を変更するため押圧バネＷを変えると、それに対
応させてサーモスタット４を変更しなければならない問
題があった。The conventional temperature and pressure safety valve B, as shown in Fig. 2,
A valve body that opens and closes the valve port 20 that communicates the valve chamber with the inlet is disposed in the valve chamber communicating with the discharge port, and the valve body is set to a desired spring pressure corresponding to the water pressure, and the valve chamber is opened and closed. The valve body 20 is biased toward the closing side by a pressure spring W disposed in the body, and the operating rod 42 of the thermostat 4, which has a sensor section 41 disposed on the inlet side, is pushed against the inlet side of the valve body. The actuating rod 42 of the thermostat 4, which was activated to open the valve port 20 due to a rise in water temperature, is activated to return to its original state, and the valve body is made to act on the valve body to open the valve port 20 when the pressure increases. Since this is done using the aforementioned pressure spring W, there is a problem in that if the pressure spring W is changed in order to change the set pressure, the thermostat 4 must be changed accordingly.
本考案は、従来手段にかかる問題がある点に鑑みなされ
たものであって、サーモスタットを変更することなく、
押圧バネのバネ圧を自由に設定し得るようにすることを
目的とする。The present invention was devised in view of the problems associated with conventional means, and without changing the thermostat,
It is an object of the present invention to enable the spring pressure of a pressure spring to be freely set.
次にこの目的を遠戚するための本考案による温度圧力弁
を、図面に従い実施例について詳述する。Next, embodiments of the temperature-pressure valve according to the present invention which are related to this object will be described in detail with reference to the drawings.
第１図において、１は温度圧力安全弁Ａの弁筺、２は排
出口２１と連通した弁室で、浸入口２２とは弁口２０を
介し連通している。In FIG. 1, 1 is a valve housing of a temperature and pressure safety valve A, 2 is a valve chamber communicating with an outlet 21, and communicating with an inlet 22 via a valve port 20.
３は前記弁口２０の弁座２０ ａに開閉自在に閉塞する
ように弁室２内に設けた弁体である。Reference numeral 3 designates a valve body provided in the valve chamber 2 so as to be able to open and close the valve seat 20a of the valve port 20.
弁体３は、浸入口２２の温度と圧力が設定した温度と圧
力以上になると弁口２０を開放してそれを排出口２１よ
り逃がすよう温度を感知するサーモスタット４と圧力を
感知する押圧バネ５とにより制御される。The valve body 3 includes a thermostat 4 that senses temperature and a pressure spring 5 that senses pressure so that when the temperature and pressure of the inlet port 22 exceed a set temperature and pressure, the valve port 20 is opened and the air is released from the outlet port 21. Controlled by
押圧バネ５のバネ圧Ｆは、弁口２０の面積をＳ、浸入口
２２の圧力をＰとすると、Ｆ−ＰｘＳの関係式によって
設定されるもので、浸入口２２の圧力が一定と仮定する
と、弁口２０の面積、即ち弁口２０Ｃ径を小さくした場
合には、弱いバネ圧となり、径を大きくした場合には強
いバネ圧となるよう設定される。The spring pressure F of the pressure spring 5 is set by the relational expression F-PxS, where S is the area of the valve port 20 and P is the pressure at the inlet port 22, and assuming that the pressure at the inlet port 22 is constant. When the area of the valve port 20, that is, the diameter of the valve port 20C is made small, the spring pressure is set to be weak, and when the diameter is made large, the spring pressure is set to be strong.
また、サーモスタット４は、浸入口２２の内腔壁に形設
した支持部材２３により支持されていて、潔入口２２側
に配位した温度を感知するセンサ部４１と、そのセンサ
部４１より前記弁体３の中央部位を貫通して弁筺１の外
方へ延長突出した作動ロッド４２とより構成されるが、
その作動ロッド４２は、前記センサ部４１が設定温度以
上の湯水に接すると伸長し、また常温に戻ると元に復帰
（弁口２０を閉塞した位置）するよう伸縮自在となり、
その作動ロッド４２の伸長（矢印方向）で弁体３を押上
げる鍔体４３と、伸長した作動ロッド４２を復帰（矢印
と逆方向）させる復帰バネ剃とを前述作動ロッド４２に
装設しである。The thermostat 4 is supported by a support member 23 formed on the inner wall of the inlet 22, and includes a sensor section 41 arranged on the side of the inlet 22 that senses the temperature, and a sensor section 41 that detects the temperature of the valve. It is composed of an actuating rod 42 that penetrates the central portion of the body 3 and extends outwardly of the valve housing 1.
The actuating rod 42 is expandable when the sensor section 41 comes into contact with hot water at a temperature higher than a set temperature, and returns to its original position (the position where the valve port 20 is closed) when the temperature returns to room temperature.
The aforementioned operating rod 42 is equipped with a collar body 43 that pushes up the valve body 3 by the extension of the operating rod 42 (in the direction of the arrow), and a return spring that returns the extended operating rod 42 (in the opposite direction to the arrow). be.
なお、復帰バネ躬と前記押圧バネ５は、弁筺１の上方開
放口に螺合した調整蓋６をねじ込む（矢印イ）ことでバ
ネ圧が強くなり、ゆるめる（矢印イと逆方向）ことでバ
ネ圧が弱くなるよう調整される。Note that the spring pressure of the return spring foot and the pressure spring 5 is increased by screwing in the adjustment cover 6 screwed into the upper opening of the valve housing 1 (arrow A), and by loosening it (in the opposite direction of arrow A). The spring pressure is adjusted to be weaker.
７は弁体３と作動ロッド４２とを水密に保持するシール
部材、８は手動により弁口２０を強制的に開口するトッ
テで、前記調整蓋６より方外へ突出した作動ロッド４２
の突出端に設けである。7 is a sealing member that holds the valve body 3 and the operating rod 42 in a watertight manner; 8 is a totte that manually forcibly opens the valve port 20; the operating rod 42 projects outward from the adjustment lid 6;
It is provided at the protruding end of.
しかして、このように構成した温度圧力安全弁は、浸入
口２２に送られる湯水が設定温度以上になると、それを
センサ部４１が感知して復帰バネ４４及び押圧バネ５の
バネ圧に抗して弁体３を押上げ弁口２０を開口する。Therefore, in the temperature and pressure safety valve configured in this way, when the hot water sent to the inlet 22 reaches a set temperature or higher, the sensor section 41 senses this and operates against the spring pressure of the return spring 44 and the pressure spring 5. Push up the valve body 3 to open the valve port 20.
また、浸入口２２が設定以上になると、その圧は押圧バ
ネ５のバネ圧に抗して弁体３を押上げて弁口２０を開口
するよう作用する。Further, when the inlet 22 reaches a predetermined level or more, the pressure acts against the spring pressure of the pressing spring 5 to push up the valve body 3 and open the valve port 20.
次に本考案による温度圧力安全弁の効果について説明す
る。Next, the effects of the temperature and pressure safety valve according to the present invention will be explained.
従来の温度圧力安全弁Ｂは、第２図に示している如く、
押圧バネＷを作動ロッド４２の復帰バネと併用した構造
となっているので、押圧バネＷは、サーモスタット４に
無理な負荷がかがることなく、しかも正しく復帰するよ
う作動ロッド４２の復帰バネとして適合するバネ圧に設
定する必要があった。The conventional temperature and pressure safety valve B, as shown in Fig. 2,
Since the structure uses the pressure spring W in combination with the return spring of the actuation rod 42, the pressure spring W acts as a return spring of the actuation rod 42 so that the thermostat 4 is not subjected to excessive load and returns correctly. It was necessary to set the appropriate spring pressure.
そのために、弁口２０の大きさ、即ち押圧バネＷのバネ
圧に合わせて、そのバネ圧に対応して正しく作動するサ
ーモスタットに変更しなくてはならない問題があった。Therefore, there is a problem in that the thermostat must be changed to a thermostat that operates correctly in accordance with the size of the valve port 20, that is, the spring pressure of the pressure spring W.
ところが、本考案による温度圧力安全弁は、上述した如
く、排出口２１を連通した弁室２内に、その弁室２と浸
入口２２とを連通ずる弁口２０を開閉自在に閉塞する弁
体３を配設するとともに、該弁体３を前記弁口２０を閉
塞する側に押出する押圧バネ５を、所望のバネ圧に設定
して設け、前記弁口２０の浸入口２２側にはサーモスタ
ット４のセンサ部４１を配設し、そのサーモスタット４
の作動ロッド４２を前記弁体３にシール部材７を介し摺
動自在に嵌挿し、その作動ロッド４２の前記弁体３より
浸入口２２側の基端部に押出作動により弁体３に衝合し
ていく鍔体４３を設け、その作動ロッド４２の前記弁室
２内に突入する先端側に、弁体３の作動に係わりなく該
作動ロッド４２を復帰側に押出す復帰バネ躬を連繋せし
めて構成しているのであるから、例えば弁体３を押上げ
るサーモスタット４の押上刃が約４ｋｇと仮定すると復
帰バネ４４のバネ圧を約１ｋｇ、押圧バネ５のバネ圧を
約３ｋｇにわけることができるので、仮りに弁口２０を
小さくしたとしても、関係式、Ｆ二ＰｘＳよりバネ圧、
即ち、押圧バネ５のみ、例えば２ｋｇ、あるいは２．５
ｋｇのバネ圧のものを使用することにより、サーモスタ
ット４は変更しないでよいことになる。However, as described above, the temperature and pressure safety valve according to the present invention has a valve body 3 that freely opens and closes the valve port 20 that communicates the valve chamber 2 and the inlet port 22 in the valve chamber 2 that communicates with the discharge port 21. At the same time, a pressure spring 5 for pushing the valve body 3 toward the side that closes the valve port 20 is set to a desired spring pressure, and a thermostat 4 is provided on the inlet port 22 side of the valve port 20. A sensor section 41 is arranged, and the thermostat 4
The actuating rod 42 is slidably inserted into the valve body 3 through the seal member 7, and the base end of the actuating rod 42 on the inlet port 22 side of the valve body 3 collides with the valve body 3 by an extrusion action. A flange body 43 is provided, and a return spring foot is connected to the tip side of the operating rod 42 that protrudes into the valve chamber 2 to push the operating rod 42 to the return side regardless of the operation of the valve body 3. For example, assuming that the push-up blade of the thermostat 4 that pushes up the valve body 3 is about 4 kg, the spring pressure of the return spring 44 can be divided into about 1 kg, and the spring pressure of the pressing spring 5 can be divided into about 3 kg. Therefore, even if the valve port 20 is made smaller, the spring pressure from the relational expression F2PxS,
That is, only the pressure spring 5 weighs, for example, 2 kg or 2.5 kg.
By using one with a spring pressure of kg, the thermostat 4 does not need to be changed.
従って、サーモスタット４を変更することなく、弁口２
０の大きさ即ち押圧バネＷのバネ圧を、自由に設定し得
るようになる。Therefore, without changing the thermostat 4, the valve port 2
0, that is, the spring pressure of the pressing spring W can be freely set.
第１図は本考案による温度圧力安全弁の縦断面図、第２
図は従来の温度圧力安全弁の縦断正面図である。
図面符号の説明 Ａ・・・・・・温度圧力安全弁、Ｂ・
・・・・・従来の温度圧力安全弁、１・・・・・・弁筺
、２・・・・・・弁室、３・・・・・・弁体、４・・・
・・・サーモスタット、５・・・・・・押圧バネ、６・
・・・・・調整蓋、７・・・・・・シール部材、８・・
・・・・トッテ、２０・・・・・・弁口、２０ａ・・・
・・・弁座、２１・・・・・・排出口、２２・・・・・
・浸入口、２３・・・・・・支持部材、４１・・・・・
・センサ部、４２・・・・・・作動ロッド、４３・・・
・・・鍔体、４４・・・・・・復帰バネ、Ｗ・・・・・
・押圧バネ、Ｆ・・・・・・バネ圧。Figure 1 is a longitudinal sectional view of the temperature and pressure safety valve according to the present invention, Figure 2
The figure is a longitudinal sectional front view of a conventional temperature and pressure safety valve. Explanation of drawing symbols A: Temperature and pressure safety valve, B:
... Conventional temperature and pressure safety valve, 1 ... Valve housing, 2 ... Valve chamber, 3 ... Valve body, 4 ...
... Thermostat, 5 ... Pressure spring, 6.
...Adjustment lid, 7...Seal member, 8...
... Totte, 20... Benguchi, 20a...
... Valve seat, 21 ... Discharge port, 22 ...
・Inlet, 23...Support member, 41...
・Sensor part, 42... Actuation rod, 43...
...Brim body, 44...Return spring, W...
・Pressure spring, F... Spring pressure.
Claims (1)
２２とを連通ずる弁口２０を開閉自在に閉塞する弁体３
を配設するとともに、該弁体３を前記弁口２０を閉塞す
る側に押出す押圧バネ５を、所望のバネ圧に設定して設
け、前記弁口２０の浸入口２２側にはサーモスタット４
のセンサ部４１を配設し、そのサーモスタット４の作動
ロッド４２を前記弁体３にシール部材７を介し摺動自在
に嵌挿し、その作動ロッド４２の前記弁体３より浸入口
２２側の基端部に押出作動により弁体３に衝合していく
鍔体４３を設け、その作動ロッド４２の前記弁室２内に
突入する先端側に、弁体３の作動に係わりなく該作動ロ
ッド４２を復帰側に押出す復帰バネ４４を連繋せしめた
ことを特徴とする温度圧力安全弁。A valve body 3 that freely opens and closes the valve port 20 that communicates the valve chamber 2 with the inlet port 22 is provided in the valve chamber 2 that communicates with the discharge port 21.
At the same time, a pressure spring 5 that pushes the valve body 3 toward the side that closes the valve port 20 is provided with a desired spring pressure, and a thermostat 4 is provided on the inlet port 22 side of the valve port 20.
The actuating rod 42 of the thermostat 4 is slidably inserted into the valve body 3 via the seal member 7, and the base of the actuating rod 42 on the inlet port 22 side from the valve body 3 is provided. A collar body 43 that abuts against the valve body 3 by extrusion action is provided at the end, and a collar body 43 is provided at the tip side of the operating rod 42 that protrudes into the valve chamber 2 regardless of the operation of the valve body 3. This temperature and pressure safety valve is characterized in that it is connected with a return spring 44 that pushes out the temperature and pressure to the return side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12429579U JPS5931971Y2 (en) | 1979-09-07 | 1979-09-07 | temperature pressure safety valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12429579U JPS5931971Y2 (en) | 1979-09-07 | 1979-09-07 | temperature pressure safety valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5640274U JPS5640274U (en) | 1981-04-14 |
| JPS5931971Y2 true JPS5931971Y2 (en) | 1984-09-08 |
Family
ID=29356198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12429579U Expired JPS5931971Y2 (en) | 1979-09-07 | 1979-09-07 | temperature pressure safety valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5931971Y2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58182070U (en) * | 1982-05-31 | 1983-12-05 | 株式会社土屋製作所 | spring valve |
| JPS5992029U (en) * | 1982-12-14 | 1984-06-22 | 井関農機株式会社 | Fuel supply device for mobile work machines |
-
1979
- 1979-09-07 JP JP12429579U patent/JPS5931971Y2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5640274U (en) | 1981-04-14 |
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