JPH0363404A - Supersonic atomizer for liquefied gas - Google Patents
Supersonic atomizer for liquefied gasInfo
- Publication number
- JPH0363404A JPH0363404A JP20002789A JP20002789A JPH0363404A JP H0363404 A JPH0363404 A JP H0363404A JP 20002789 A JP20002789 A JP 20002789A JP 20002789 A JP20002789 A JP 20002789A JP H0363404 A JPH0363404 A JP H0363404A
- Authority
- JP
- Japan
- Prior art keywords
- vibrator
- liquefied gas
- liquefied
- horn
- vibrator horn
- 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
- 238000000889 atomisation Methods 0.000 abstract description 22
- 239000007788 liquid Substances 0.000 abstract description 14
- 239000000446 fuel Substances 0.000 abstract description 13
- 239000007789 gas Substances 0.000 description 43
- 238000000034 method Methods 0.000 description 3
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 239000000872 buffer Substances 0.000 description 1
- 239000001273 butane Substances 0.000 description 1
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 description 1
- OFBQJSOFQDEBGM-UHFFFAOYSA-N n-pentane Natural products CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- 239000006200 vaporizer Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B17/00—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups
- B05B17/04—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods
- B05B17/06—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations
- B05B17/0607—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations generated by electrical means, e.g. piezoelectric transducers
- B05B17/0623—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations generated by electrical means, e.g. piezoelectric transducers coupled with a vibrating horn
Landscapes
- Feeding And Controlling Fuel (AREA)
- Pressure-Spray And Ultrasonic-Wave- Spray Burners (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、プロパン、ブタン、天然ガス等の液化ガスを
供給するための液化ガス用超音波霧化装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an ultrasonic atomizer for liquefied gases for supplying liquefied gases such as propane, butane, natural gas, etc.
従来、比較的小量の液化ガスを気化して供給する場合に
は、各需要先に置いた液化ガスボンベから、液状のガス
を取り出し、この液をオリフィスにより気化してから供
給するようにしている。また、大量のガスを発生させる
場合には、多数のボンベを連結するか、液状のガスをベ
ーパライザで強制的に加熱し気化してから供給するよう
にしている。Conventionally, when supplying a relatively small amount of liquefied gas by vaporizing it, the liquefied gas was extracted from a liquefied gas cylinder placed at each customer, and this liquid was vaporized through an orifice before being supplied. . In addition, when generating a large amount of gas, a large number of cylinders are connected together, or the liquid gas is forcibly heated and vaporized using a vaporizer before being supplied.
上記従来の液化ガスの供給方式において、前者の方式す
なわち液状のガスをオリフィスにより気化す°る方式に
おいては、燃料供給の安定性と微粒化特性が問題となる
。Among the conventional liquefied gas supply methods described above, in the former method, that is, the method in which liquefied gas is vaporized through an orifice, there are problems with the stability of fuel supply and atomization characteristics.
燃料供給の安定性について言えば、配管の温度の影響や
配管内を流れる際の静圧低下により、ボンベからの配管
中に気泡が発生し、この気泡が流量制御用のバルブやオ
リフィスを通過する際に、流量が変動してしまったり、
液状のガスが気化するためオリフィス部で氷結が生じて
しまうという問題を有し、安定した燃料供給ができなか
った。Regarding the stability of fuel supply, air bubbles are generated in the piping from the cylinder due to the influence of the temperature of the piping and the drop in static pressure when flowing through the piping, and these air bubbles pass through the valves and orifices that control the flow rate. In some cases, the flow rate may fluctuate,
There was a problem in that the liquid gas vaporized, causing ice to form at the orifice, making it impossible to provide stable fuel supply.
また、微粒化特性を向上するためには、従来から知られ
ている第３図に示す超音波霧化装置を用いることが考え
られる。Further, in order to improve the atomization characteristics, it is conceivable to use a conventionally known ultrasonic atomization device shown in FIG. 3.
超音波霧化装置は、アウターシリンダ１１１、インナー
シリンダ１１２、振動子ホーン１１３、電気・音響変換
素子１１４からなり、アウターシリンダ１１１とインナ
ーシリンダ１１２間に液化ガス供給路１１５が形成され
、燃料はアウターシリンダ１１１の環状ノズル部１１Ｅ
３から振動子ホーン１１３に供給され燃料を微粒化する
ものである。The ultrasonic atomization device consists of an outer cylinder 111, an inner cylinder 112, a vibrator horn 113, and an electric/acoustic conversion element 114. A liquefied gas supply path 115 is formed between the outer cylinder 111 and the inner cylinder 112, and the fuel is supplied to the outer cylinder 112. Annular nozzle part 11E of cylinder 111
3 to the vibrator horn 113 to atomize the fuel.
しかしながら、液化ガス供給路１１５内には、気液が共
存するため、ガスと一部の液体は、振動子ホーン１１３
に沿って供給されるが、殆どの液体は、ノズル部１１８
内畦面を伝わってノズルの先端外面に出て溜ってしまい
波乗れが生じるという問題を有している。However, since gas and liquid coexist in the liquefied gas supply path 115, the gas and some of the liquid are
However, most of the liquid is supplied along the nozzle section 118.
This has the problem that it travels along the inner ridge surface, exits to the outer surface of the tip of the nozzle, and accumulates, causing wave riding.
本発明は、上記問題を炉決するものであって、改良した
超音波霧化装置を用いることにより、燃料供給の安定性
と微粒化特性の向上を図ることができる液化ガスの供給
装置を提供することを目的とする。The present invention solves the above problem, and provides a liquefied gas supply device that uses an improved ultrasonic atomization device to improve fuel supply stability and atomization characteristics. The purpose is to
そのために本発′明の液化ガス用超音波霧化装置は、液
化ガス容器１１と超音波霧化装置１とを液化ガス供給管
ｅにより接続し、前記液化ガス容器１１または液化ガス
供給管ｅを加圧する液化ガス供給装置を有し、前記超音
波霧化装置は、球面形状の振動子ホーン３ａを備え、該
振動子ホーン３ａの球面部に対向して前記液化ガス供給
管６を配置してなり、該液化ガス供給管６の内径を振動
子ホーン３ａの直径の５〜２０％にすることを特徴とす
る。For this purpose, the ultrasonic atomizer for liquefied gas of the present invention connects the liquefied gas container 11 and the ultrasonic atomizer 1 by the liquefied gas supply pipe e, and connects the liquefied gas container 11 or the liquefied gas supply pipe e. The ultrasonic atomization device includes a spherical vibrator horn 3a, and the liquefied gas supply pipe 6 is arranged opposite to the spherical portion of the vibrator horn 3a. It is characterized in that the inner diameter of the liquefied gas supply pipe 6 is 5 to 20% of the diameter of the vibrator horn 3a.
なお、上記構成に付加した番号は図面と対比させるため
のものであり、これにより本発明の構成が何ら限定され
るものではない。Note that the numbers added to the above configurations are for comparison with the drawings, and the configurations of the present invention are not limited thereby.
本発明においては、例えば第１図に示すように、液体供
給管６から供給される液化ガスは、振動子ホーン３ａに
到達し、ここで電気・音響変換素子４による超音波振動
によって霧化される。このとき、液化ガス供給管６から
噴霧される気液は、球面形状の振動子ホーン３ａに沿っ
て滑らかに噴射されるため、燃料流量が大になっても、
燃料が霧化面に当たって跳ね返ってしまうことがなく霧
化特性を良好に維持することができると共に、ターンダ
ウン比を増大させることができる。In the present invention, for example, as shown in FIG. 1, the liquefied gas supplied from the liquid supply pipe 6 reaches the vibrator horn 3a, where it is atomized by ultrasonic vibration by the electric/acoustic transducer 4. Ru. At this time, the gas and liquid sprayed from the liquefied gas supply pipe 6 is smoothly injected along the spherical vibrator horn 3a, so even if the fuel flow rate becomes large,
Since the fuel does not bounce off the atomization surface, good atomization characteristics can be maintained, and the turndown ratio can be increased.
以下、本発明の実施例を図面を参照しつつ説明する。 Embodiments of the present invention will be described below with reference to the drawings.
第２図は本発明が適用される液化ガスの供給装置の構成
図である。FIG. 2 is a configuration diagram of a liquefied gas supply device to which the present invention is applied.
液化ガス容器１１の下部液状部と超音波霧化装置１は、
液化ガス供給管６により接続され、液化ガス容器１１の
上部空間は、配管１２により圧縮空気源１３に接続され
ている。なお、圧縮空気源の代わりに、液化ガス供給管
６に加圧ポンプを設けてもよい。そして、液化ガス容器
１１或は液化ガス供給管６内を加圧することにより、液
化ガス供給管６内の静圧低下による気泡の頻出を防止し
ている。The lower liquid part of the liquefied gas container 11 and the ultrasonic atomizer 1 are
The upper space of the liquefied gas container 11 is connected to a compressed air source 13 via a pipe 12. Note that a pressurizing pump may be provided in the liquefied gas supply pipe 6 instead of the compressed air source. By pressurizing the inside of the liquefied gas container 11 or the liquefied gas supply pipe 6, the frequent appearance of bubbles due to a decrease in the static pressure inside the liquefied gas supply pipe 6 is prevented.
第１図は、本発明の超音波霧化装置の一実施例を示す一
部断面図である。FIG. 1 is a partially sectional view showing an embodiment of the ultrasonic atomization device of the present invention.
超音波霧化装置ｌは、アウターシリンダ２、振動子本体
３、電気・音響変換素子４からなり、アウターシリンダ
２は、Ｏりフグ５を介して振動子本体３に圧入されてい
る。振動子本体３の先端にはく 球面形状の振動子ホー
ン３ａが一体に形成され、該振動子ホーン３ａに対向し
て前記液化ガス供給管６が配置されている。なお、７は
取付用孔である。The ultrasonic atomizer 1 includes an outer cylinder 2, a vibrator body 3, and an electro-acoustic transducer 4, and the outer cylinder 2 is press-fitted into the vibrator body 3 via an O-shaped puffer 5. A spherical vibrator horn 3a is integrally formed at the tip of the vibrator body 3, and the liquefied gas supply pipe 6 is arranged opposite to the vibrator horn 3a. Note that 7 is a mounting hole.
そして、液体供給管６から供給される液化ガスは、振動
子ホーン３ａに到達し、ここで電気・音響変換素子４に
よる超音波振動によって霧化される。このとき、液化ガ
ス供給管６から噴霧される気液は、球面形状の振動子ホ
ーン３ａに沿って滑らかに噴射されるため、燃料流量が
大になっても、燃料が霧化面に当たって跳ね返ってしま
うことがなく霧化特性を良好に維持することができると
共に、ターンダウン比を増大させることができる。Then, the liquefied gas supplied from the liquid supply pipe 6 reaches the vibrator horn 3a, where it is atomized by ultrasonic vibration by the electric/acoustic conversion element 4. At this time, the gas and liquid sprayed from the liquefied gas supply pipe 6 is smoothly injected along the spherical vibrator horn 3a, so even if the fuel flow rate becomes large, the fuel will hit the atomization surface and bounce back. It is possible to maintain good atomization characteristics without storage, and it is also possible to increase the turndown ratio.
上記超音波霧化装置において種々の実験を行った結果、
液化ガス供給管６の内径を振動子ホーン３ａの直径の５
〜２０％にすると、微粒化特性が良くなることが判明し
た。液化ガス供給管６の内径を太くし過ぎると、噴霧角
が大きくなりすぎて、供給管６の先端から液が飛び散っ
てしまい、振動子ホーン３ａに供給不能になってしまう
。逆に内径を細くし過ぎると、供給管６の先端が氷結し
ていまう。As a result of various experiments conducted with the above ultrasonic atomization device,
The inner diameter of the liquefied gas supply pipe 6 is equal to the diameter of the vibrator horn 3a.
It has been found that when the content is set to 20%, the atomization properties are improved. If the inner diameter of the liquefied gas supply pipe 6 is made too thick, the spray angle will become too large, and the liquid will scatter from the tip of the supply pipe 6, making it impossible to supply it to the vibrator horn 3a. On the other hand, if the inner diameter is made too thin, the tip of the supply pipe 6 will freeze.
以上、説明してきたように本発明の液化ガス用超音波霧
化装置によれば、液化ガス供給管６の内径を振動子ホー
ン３ａの直径の５〜２０％にすると共に、振動子ホーン
の先端形状を球面形状とすることにより、燃料流量が大
になっても、燃料が霧化面に当たって跳ね返ってしまう
ことがなく微粒化特性を向上させると共に、高ターンダ
ウン比を得ることができる。As described above, according to the ultrasonic atomizer for liquefied gas of the present invention, the inner diameter of the liquefied gas supply pipe 6 is set to 5 to 20% of the diameter of the vibrator horn 3a, and the tip of the vibrator horn is By making the shape spherical, even if the fuel flow rate becomes large, the fuel will not bounce off the atomization surface, improving atomization characteristics and achieving a high turndown ratio.
第１図は本発明の超音波霧化装置の一実施例を示す一部
断面図、第２図は本発明が適用される液化ガスの供給装
置の構成図、第３図は従来の超音波霧化装置の一例を示
す概略断面図である。
１・・・超音波霧化装置、３ａ・・・振動子ホーン、６
・・・液化ガス供給管、１１・・・液化ガス容器。
出 願 人 東燃株式会社Fig. 1 is a partial sectional view showing an embodiment of the ultrasonic atomization device of the present invention, Fig. 2 is a configuration diagram of a liquefied gas supply device to which the present invention is applied, and Fig. 3 is a conventional ultrasonic atomization device. It is a schematic sectional view showing an example of an atomization device. 1... Ultrasonic atomization device, 3a... Vibrator horn, 6
...Liquefied gas supply pipe, 11...Liquefied gas container. Applicant: Tonen Corporation
Claims (1)
管により接続し、前記液化ガス容器または液化ガス供給
管を加圧する液化ガス供給装置を有し、前記超音波霧化
装置は、球面形状の振動子ホーンを備え、該振動子ホー
ンの球面部に対向して前記液化ガス供給管を配置してな
り、該液化ガス供給管の内径を振動子ホーンの直径の５
〜２０％にすることを特徴とする液化ガス用超音波霧化
装置。(1) The liquefied gas container and the ultrasonic atomizer are connected by a liquefied gas supply pipe, and the ultrasonic atomizer has a liquefied gas supply device that pressurizes the liquefied gas container or the liquefied gas supply pipe, and the ultrasonic atomizer includes: The liquefied gas supply pipe is provided with a spherical vibrator horn, and the liquefied gas supply pipe is arranged opposite to the spherical part of the vibrator horn, and the inner diameter of the liquefied gas supply pipe is set to 5 times the diameter of the vibrator horn.
20%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20002789A JPH0363404A (en) | 1989-07-31 | 1989-07-31 | Supersonic atomizer for liquefied gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20002789A JPH0363404A (en) | 1989-07-31 | 1989-07-31 | Supersonic atomizer for liquefied gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0363404A true JPH0363404A (en) | 1991-03-19 |
Family
ID=16417599
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20002789A Pending JPH0363404A (en) | 1989-07-31 | 1989-07-31 | Supersonic atomizer for liquefied gas |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0363404A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008037234A (en) * | 2006-08-04 | 2008-02-21 | Shin Caterpillar Mitsubishi Ltd | Air conditioner |
-
1989
- 1989-07-31 JP JP20002789A patent/JPH0363404A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008037234A (en) * | 2006-08-04 | 2008-02-21 | Shin Caterpillar Mitsubishi Ltd | Air conditioner |
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