JPS6114640Y2 - - Google Patents
Info
- Publication number
- JPS6114640Y2 JPS6114640Y2 JP11771080U JP11771080U JPS6114640Y2 JP S6114640 Y2 JPS6114640 Y2 JP S6114640Y2 JP 11771080 U JP11771080 U JP 11771080U JP 11771080 U JP11771080 U JP 11771080U JP S6114640 Y2 JPS6114640 Y2 JP S6114640Y2
- Authority
- JP
- Japan
- Prior art keywords
- vacuum
- ejector
- valve
- check valve
- present
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
- 239000012530 fluid Substances 0.000 description 20
- 238000002347 injection Methods 0.000 description 7
- 239000007924 injection Substances 0.000 description 7
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Jet Pumps And Other Pumps (AREA)
Description
【考案の詳細な説明】
本考案は、真空発生装置に関し、より詳しくは
水系エゼクターと逆止弁とを連結させてなる真空
発生装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a vacuum generator, and more particularly to a vacuum generator in which a water-based ejector and a check valve are connected.
現在、真空発生装置としてノズルから水または
蒸気等の流体を高速に噴射させ、それによつて生
ずる牽引作用により、他の流体を吸入するエゼク
ターが小形で簡単な構造をもつているにもかかわ
らず、大容量の流体を排気することができるため
広く使用されている。 At present, ejectors that are used as vacuum generators to inject fluids such as water or steam from nozzles at high speed, and suck in other fluids using the resulting traction action, have a small and simple structure. It is widely used because it can pump out large volumes of fluid.
エゼクターを真空発生装置として用いる場合に
は、一般に第１図に示すようにエゼクターと逆止
弁とを連結させて使用される。このような真空発
生装置において、その運転を停止させる場合に、
吸入流体側装置、配管内およびエゼクター１と逆
止弁６との連通部７内が真空圧となつているため
に、逆止弁６が完全に閉じず、噴射流体である水
または水蒸気ドレンの残液が流体吸入側である連
通部および流体吸入配管方向へ逆流する。その結
果、逆流した水または水蒸気のドレンが装置内に
滞留して装置を腐蝕させたり、または再度エゼク
ターを始動させたときにその滞留する水の蒸発に
より、所定の真空度が得られないという欠点があ
つた。 When an ejector is used as a vacuum generator, it is generally used by connecting the ejector and a check valve as shown in FIG. When stopping the operation of such a vacuum generator,
Since the suction fluid side device, the inside of the piping, and the inside of the communication part 7 between the ejector 1 and the check valve 6 are under vacuum pressure, the check valve 6 does not close completely and the water or steam drain, which is the injection fluid, is The remaining liquid flows back toward the fluid suction side of the communication section and the fluid suction piping. As a result, the backflow of water or steam condensate may remain in the device and corrode the device, or when the ejector is started again, the remaining water evaporates, making it impossible to obtain the desired degree of vacuum. It was hot.
本考案者は、このような状況に鑑み、種々検討
を行なつた結果、水系エゼクターを用いる真空発
生装置の特定位置に真空圧開放弁を設けることに
より上記の欠点が一挙に解消できることを見いだ
し本考案を完成した。 In view of this situation, the inventor of the present invention has conducted various studies and found that the above drawbacks can be solved at once by providing a vacuum pressure release valve at a specific position of a vacuum generator using a water-based ejector. Completed the idea.
即ち、本考案の要旨とするところは、水系エゼ
クター１と逆止弁２とを連結させて真空を発生さ
せる装置において、該エゼクター１のノズル８
と、逆止弁２の弁体６との間にある連通部７に、
該連通部７内の真空を解圧することのできる真空
圧開放弁９を連通させて設けたことを特徴とする
真空発生装置にある。 That is, the gist of the present invention is that in a device for generating a vacuum by connecting a water-based ejector 1 and a check valve 2, the nozzle 8 of the ejector 1
and the communication portion 7 between the valve body 6 of the check valve 2,
The vacuum generating device is characterized in that a vacuum pressure release valve 9 that can release the vacuum in the communication portion 7 is provided in communication with the vacuum pressure release valve 9.
次に本考案に係わる真空発生装置を図面に基い
て説明する。 Next, a vacuum generator according to the present invention will be explained based on the drawings.
第２図は本考案の一例を示す真空発生装置の断
面図を示し、また第３図、第４図は本考案の他の
例を示す真空発生装置の断面図である。第２図、
第３図および第４図において、１はエゼクター、
２は逆止弁、３は噴射流体入口、４は噴射流体お
よび吸入流体の排出口、５は流体吸入口、６は弁
体、７は連通部、８はノズル、９は真空圧開放
弁、１０は連結管をそれぞれ示す。 FIG. 2 shows a cross-sectional view of a vacuum generating device showing one example of the present invention, and FIGS. 3 and 4 are cross-sectional views of vacuum generating devices showing other examples of the present invention. Figure 2,
In FIGS. 3 and 4, 1 is an ejector;
2 is a check valve, 3 is an injection fluid inlet, 4 is an outlet for injection fluid and intake fluid, 5 is a fluid intake port, 6 is a valve body, 7 is a communication part, 8 is a nozzle, 9 is a vacuum pressure release valve, 10 indicates connecting pipes.
本考案に係る真空発生装置においては、真空圧
開放弁９は、エゼクターを停止した際に、連通部
７内の真空を解圧するためのもので、エゼクター
１と逆止弁２と連結させて形成されるエゼクター
１のノズル８と逆止弁２の弁体６との間にある連
通部７に連通させて設けられる。連通部７に設け
る真空圧開放弁９の付設位置は、エゼクター１の
ノズル８と逆止弁２の弁体６との間にある連通部
７であれば特に限定されないが、例えば第２図に
示すように逆止弁６に、また第３図に示すように
エゼクター１と逆止弁２との間に新しく、連結管
１０を設け、それに設けてもよい。また第４図に
示すように直接エゼクター本体に取付けてもよ
い。 In the vacuum generator according to the present invention, the vacuum pressure release valve 9 is for releasing the vacuum in the communication portion 7 when the ejector is stopped, and is formed by connecting the ejector 1 and the check valve 2. The nozzle 8 of the ejector 1 and the valve body 6 of the check valve 2 are provided in communication with the communication portion 7 . The attachment position of the vacuum pressure release valve 9 provided in the communication part 7 is not particularly limited as long as the communication part 7 is located between the nozzle 8 of the ejector 1 and the valve body 6 of the check valve 2, but for example, as shown in FIG. A new connecting pipe 10 may be provided in the check valve 6 as shown, or between the ejector 1 and the check valve 2 as shown in FIG. 3. Alternatively, as shown in FIG. 4, it may be attached directly to the ejector body.
真空圧開放弁９は、操作性を阻害しない範囲な
らば、第２図、第３図および第４図に示す以外の
連通部７の個所に設けてもよい。真空圧開放弁９
は１個または必要に応じて２個以上の複数個設け
てもよい。 The vacuum pressure release valve 9 may be provided at a location of the communication portion 7 other than that shown in FIGS. 2, 3, and 4 as long as it does not impede operability. Vacuum pressure release valve 9
may be provided in one piece or in a plurality of two or more pieces as necessary.
なお、本考案に係わるような真空発生装置にお
いては、真空圧開放弁９は、エゼクター１のノズ
ル８と逆止弁２の弁体６との間にある連通部７に
設けることが不可欠であつて、これ以外の個所に
設けても、本考案の如き良好な噴射流体の逆流防
止効果は得られない。 In addition, in the vacuum generator according to the present invention, it is essential to provide the vacuum pressure release valve 9 in the communication portion 7 between the nozzle 8 of the ejector 1 and the valve body 6 of the check valve 2. However, even if it is provided at a location other than this, the good effect of preventing backflow of the jetted fluid as in the present invention cannot be obtained.
本考案に係わる真空発生装置に付設する真空圧
開放弁９としては特に限定されず、どのような弁
でも使用でき、例えばコツク類、ニードル弁、仕
切弁等が本考案の装置において好ましく使用でき
る。 The vacuum pressure release valve 9 attached to the vacuum generating device according to the present invention is not particularly limited, and any valve can be used. For example, a valve, a needle valve, a gate valve, etc. can be preferably used in the device according to the present invention.
本考案の真空発生装置に用いられるエゼクター
は、水エゼクターまたは水蒸気エゼクター等の水
系のエゼクターである。 The ejector used in the vacuum generator of the present invention is a water-based ejector such as a water ejector or a steam ejector.
本考案の真空発生装置の操作方法として種々の
方法を取り得るが、水エゼクターの好ましい一操
作例について説明すると、該真空発生装置の運転
を停止する場合には、まず真空圧開放弁９を開い
て連通部７内の真空を解圧し、次いでエゼクター
１の噴射流体ポンプを停止させればよい。 Various methods can be used to operate the vacuum generator of the present invention, but to explain one preferred example of operating the water ejector, when stopping the operation of the vacuum generator, first open the vacuum pressure release valve 9. The vacuum in the communication portion 7 may be released by using the ejector 1, and then the injection fluid pump of the ejector 1 may be stopped.
一方運転を開始する場合には通常の方法で真空
圧開放弁９を閉じてエゼクターの噴射流体ポンプ
を始動させればよい。 On the other hand, when starting the operation, the vacuum pressure release valve 9 may be closed in the usual manner and the injection fluid pump of the ejector may be started.
以上に述べたような構造を有する本考案の真空
発生装置は、従来起つていた水系の噴射流体の吸
入側装置内への逆流という現象が連通部７に真空
圧開放弁９を設けることにより、逆止弁の弁体を
確実に閉じさせることができることにより解消
し、その結果、装置内の腐蝕もなくなり、さらに
水の逆流滞留もなくなるので真空度も高められる
という利点を有する。 The vacuum generating device of the present invention having the structure described above eliminates the phenomenon of backflow of water-based jet fluid into the suction side device, which conventionally occurred, by providing a vacuum pressure release valve 9 in the communication portion 7. This problem is solved by being able to reliably close the valve body of the check valve, and as a result, there is no corrosion within the device, and there is also no backflow of water, which has the advantage of increasing the degree of vacuum.
本考案の真空発生装置は、度々、運転を停止さ
せても装置内への噴射流体の逆流が起らないので
省エネルギーの観点より、不使用時に随時運転の
停止が容易にでき、それによる動力費が大巾に低
減できるというメリツトを有し、工業上きわめて
有益である。 The vacuum generator of the present invention does not cause backflow of the injected fluid into the device even if the operation is frequently stopped, so from the perspective of energy conservation, the operation can be easily stopped at any time when not in use, thereby reducing power costs. It has the advantage of being able to greatly reduce the amount of energy generated, and is extremely useful industrially.
第１図は従来の真空発生装置の例を示す断面
図、第２図は本考案の真空発生装置の一例を示す
断面図、第３図および第４図は本考案の他の例を
示す断面図であり、１はエゼクター、２は逆止
弁、３は噴射流体入口、４は噴射流体および吸入
流体の排出口、５は流体吸入口、６は弁体、７は
連通部、８はノズル、９は真空圧開放弁、１０は
連結管をそれぞれ示す。
Fig. 1 is a sectional view showing an example of a conventional vacuum generating device, Fig. 2 is a sectional view showing an example of a vacuum generating device of the present invention, and Figs. 3 and 4 are sectional views showing other examples of the present invention. 1 is an ejector, 2 is a check valve, 3 is an injection fluid inlet, 4 is an outlet for injection fluid and suction fluid, 5 is a fluid intake port, 6 is a valve body, 7 is a communication part, and 8 is a nozzle. , 9 indicates a vacuum pressure release valve, and 10 indicates a connecting pipe.
Claims (1)
空を発生させる装置において、該エゼクター１の
ノズル８と、逆止弁２の弁体６との間にある連通
部７に、該連通部７内の真空を解圧することので
きる真空圧開放弁９を連通して設けたことを特徴
とする真空発生装置。 In a device that connects a water-based ejector 1 and a check valve 2 to generate a vacuum, a communication section 7 between a nozzle 8 of the ejector 1 and a valve body 6 of the check valve 2 is connected to the communication section 7. A vacuum generating device characterized by being provided with a vacuum pressure release valve 9 in communication with which the vacuum inside can be released.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11771080U JPS6114640Y2 (en) | 1980-08-20 | 1980-08-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11771080U JPS6114640Y2 (en) | 1980-08-20 | 1980-08-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5740699U JPS5740699U (en) | 1982-03-04 |
| JPS6114640Y2 true JPS6114640Y2 (en) | 1986-05-07 |
Family
ID=29478467
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11771080U Expired JPS6114640Y2 (en) | 1980-08-20 | 1980-08-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6114640Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100546701C (en) * | 2004-12-24 | 2009-10-07 | 西门子水技术公司 | Simple gas scouring method and device |
-
1980
- 1980-08-20 JP JP11771080U patent/JPS6114640Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5740699U (en) | 1982-03-04 |
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