CN1075899A - 制备含水油乳液的装置 - Google Patents
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Abstract
一种制备含水油乳液的装置,包括一个带有泵壳
的径流泵,泵室内有一径流推进器并在推进器前方有
一推进器的吸入室。该吸入室是旋转对称的并与一
注水喷嘴、一进油管和一循环管相连,这三个管的开
口通向吸入室。环绕着推进器是一圆柱形的壁。在
靠近上述圆柱形壁的地方,有一个通向泵室的乳液流
出管的开口,且在圆柱形壁上还有一开口朝向泵室的
凹槽,该凹槽沿推进器的转动方向在出口的末端有一
阻挡台阶。乳液引出管的开口对着阻挡台阶前的凹
槽。
Description
本发明涉及一种采用径流回旋泵为柴油发动机或油燃室的喷射泵制备操作用含水乳油的装置。
已经公知,通过向柴油燃料中注水可以使发动机的运行温度降低并可减少废气中一氧化二氮和烟尘的含量,油燃室的情况也是这样的。
然而,首要的问题是要将柴油燃料和水变成乳化状并尽可能均匀,使水的最小微粒悬浮在燃烧油中。
为了制备乳液,欧洲专利申请第0392545A1号中(EP0392545A1)公知了一种方法,它使用了一种中空的梨形旋转对称涡流室,其中有一个相切的入口和一个渐细的轴向出口,该涡流室环绕有一个环形通道且通道上在切线方向开有油入口,通道通过切线入口与涡流室相连。借助于一个注水喷嘴将水注入环形通道或涡流室。涡流室的渐细出口通过渐大进入径流泵的吸入室,该泵的泵室中有一个径流推进器和一个与推进器平行延伸的乳液流出通道,将制备好的乳液引到喷射泵并进入循环注入通道且循环通道进入环形通道的入口是相切的。通道乳液到涡流室的循环和在涡流室输出的增大以及在推进器出口流动方向的改变,形成了平均颗粒为2~4微米的乳液,由此得到了非常适合于柴油发动机运行的细小均匀的乳液。通过一个电磁注水喷嘴根据柴油发动机的运行状态来控制乳液中水的含量。
然而,所述的这种装置的结构复杂且昂贵,本发明所要解决的问题是提供一种结构简单的装置且保证好的乳液的形成。
为了解决上述问题,本发明提供了一种配制含水乳液的装置,该装置包括了一个具有外壳的径流泵,该径流泵的泵室中有一个径流推进器,在轴向的前方有一推进器吸入室,该吸入室是旋转对称的并且与注水喷嘴、进油通路及循环注入通路相连。推进器被一圆柱形壁体环绕,在靠近上述圆柱形壁体的地方开有一个对着泵室的乳液出口。其中,注水喷嘴和进油通道及循环注入通道直接通向推进器的吸入室。按环绕方向延着局部扇形在圆柱形壁体开有凹槽并径向对着泵室,该凹槽在推进器旋转方向的出口处形成了一个阻挡台阶。在凹槽阻挡台阶前,按横对着凹槽环绕方向和泵室的径向方向开有一与乳液输出通道相连的孔。
从本发明可以看到,制备一种好的乳液,无须在径流推进器的吸入室前连接一个特殊形状的涡流室,而且也无须在吸入室的进口提供一个渐大部分。与其相对照,本发明通过提供一种与径流推进器相配合的径流泵泵室乳液输出的特殊结构,产生出好的乳液。
根据本发明,来自推进器的乳液被推进凹槽中,该凹槽是径向对着推进器且仅沿着圆柱形壁体的局部扇形延伸,乳液在阻挡台阶处被档并突然横的转向乳液排出通道,这个变向最好为90°。排出的乳液供给燃烧室,特别是柴油发动机的喷射泵,从燃烧室出来的剩余乳液又送回到推进器吸入室的循环注入通道内。然而,将部分乳液从流出通道送入燃烧室也是可以的,而将其余的乳液直接送到循环注入通道,然后连同从燃烧室返回的乳液一起回到吸入室。
虽然在凹槽处流动方向的改变相对于推进器轴大于90°,乳液输出通道的开口部分最好是沿着与推进器旋转轴相平行的方向延伸的。
阻拦台阶应尽可能地靠近乳液流出通路出口的边缘,以面对凹槽处的流动方向。虽然沿推进器旋转面横向延伸的母面可以向凹槽处流动方向倾斜,但最好是与推进器旋转轴平行。在本发明的一个优选实施例中,阻拦台阶的轴向内表面是一个圆柱面的陡沿。通过这个面,一部分乳液被送入乳液出口并在推进器周线处与仍留在推进器内的乳液分离。
由推进器中心角45°到120°这个部分扇形区形成了凹槽,最好中心角至少要60°。凹槽的深度从凹槽的起始端到阻挡台阶逐渐地增加,其中,凹槽的径向底部可以是曲线的,如螺旋曲线。由于加工的原因,凹槽的径向深度可以是恒定的。所以,凹槽的底部相对于推进器的轴是同心弯曲的。特别是在后面的实施例中,凹槽的轴向宽度可以等同于推进器出口部分的宽度且恒定不变。然而,最好是通过使乳液流出开口处凹槽的宽度宽于凹槽的起始点的宽度,从而使凹槽的轴向部分的宽度从凹槽的起始处到乳液流出开口处逐渐增加而不改变凹槽的径向深度,然后,一个外轮廓表面将凹槽围住,该外轮廓表面相对于推进器径向表面倾斜延伸,可以是拱形的,或者最好是平面的。在这里,凹槽的轴向宽度等于推进器出口截面的宽度,而在乳液流出开口之前中是接近其宽度。
吸入室的形状对制备乳液来说不是关键的。因此,吸入室的形状可以根据径流泵的结构原则取决于流动损失的降低。吸入室可与推进器同心安置并可相对于旋转对称地成形。虽然吸入室可以是一个中空的锥形或朝推进器入口增大,但吸入室最好是圆柱形的。因此,注油通路和循环通路可以在径向方向或轴向方向在吸入室内开口。而且吸入室具有圆柱形时,更有利的是注油通路和循环通路可以沿推进器旋转的切线方向在吸入室内开口。这样,在吸入室内避免产生不确定的混合涡流,特别是避免了穴的产生,尤其是在压力作用下进来的柴油流,其运动方向与推进器的旋转方向相一致,因此减少了流动损失。通常是用一个乳液整循环通路来避免穴的产生,以避免形成的乳液被水流涡搅乱或破坏。
根据结构条件,注水喷嘴的开口位置及其状态可以在很大的范围内选择。然而,当吸入室相对于旋转对称时,特别是当注油流和循环流相切时,最好使注水喷嘴调整在吸入室的轴线上,以便利用吸入室中的旋转流体的压力条件使水滴尽可能均匀地分布,并在吸入室内的高压下雾化。
本发明保持了欧洲专利号0392545装置的优点,即根据柴油发动机的运行状态,通过使用一个可控电磁注水喷嘴来控制乳液中水的含量。以及一种均匀和颗粒细小的乳液的制备。而且,本装置的造价明显降低,并且由于省去了附加涡流室使体积明显缩小。因此该装置更适合安置在柴油车辆的发动机室内并尽可能靠近喷射泵,通常这里的空间很小。
下面参照附图1~4具体地描述本发明的乳液制备装置的最佳实施例:
图1是乳液形成装置30的纵向剖面图;
图2是图1中吸入室部分A的底视图;
图3是图1中泵部分B的顶视图;
图4是图1中泵部分B的侧视图;
如图1所示,本发明实施例的乳液形成装置有一个圆柱形的泵壳31,该泵壳31在轴线方向上划分为三个单元,即吸入部分A、泵部分B和驱动部分C,用螺栓将这三个部分在轴线方向上同轴安装在一起。
如图1~4所示,泵部分B的内部有一圆柱形的泵室33,在泵室33内配置了一个径流推进器35,在驱动部分C安装了一个电动发动机50并驱动推进器35旋转。
生成乳液的装置30中有一圆柱形的吸入室37,该吸入室与径向推进器35一起同轴地安装在吸入部分A内并为推进器35提供了一个吸入室,如图1所示。
如图1和图2所示,一个注油管38和一个循环注入管39沿着吸入室37的截面切线方向连接在吸入室37的上表面上,来自注油管38和循环注入管39的液体沿着切线方向流进吸入室37并产生一个涡流,其旋转方向与径向推进器的转动方向一致。一个电磁控制开启和关闭的注水阀安装在吸入室37轴线的上方。
在泵室33内有一圆柱形壁面34,该壁面34沿着径向推进器35的外缘在径向延伸很小一段距离,其轴向高度基本上等于径向推进器35沿轴线方向外缘的厚度。
如图3和图4所示,在壁面34上有一个相对于泵室33中心具有扇形部分的凹槽41,凹槽41的中心角47在45°~120°的范围内,最好为大约6.0°。
到乳液流出管36去的流出口43应开在沿推进器转动向方扇形凹槽41的末端上。流出口43通过流出管44与乳液流出管36连接在一起,流出管44沿着与轴线平行的方向延伸。可通过钻孔机或类似设备在壳31的泵部分B内形成流出管44。流出管44的直径要小于扇形凹槽在径向方向上的宽度且要尽可能地设置在靠近凹槽41的末端部分。为了增加流出管44的截面积,可以使流出管44具有一个椭圆形的截面。凹槽41平坦的底部46要相对于泵室的径向截面倾斜一定的角度,这样可以使凹槽41的径向高度从凹槽41的端部45到流出口43逐渐增加,其凹槽的径向高度等于在流出管44的流出口43处推进器35沿轴线上的厚度。
紧挨着流出口43的出口处有一个端墙或阻挡台阶42将凹槽41围住,阻挡台阶42作为一个圆柱形表面从凹槽41的外缘沿推进器35的直径面上在流出口43后延伸,该延伸的母体作为流出管44的后壁面的扩展并与推进器旋转轴平行。这样就顺着流出口43的外缘遮住了一半的流出口43。
从推进器35流出的乳液碰撞到端壁42后,改变了流动方向并从流出口43流进流出管44。
虽然所示的终端壁是由半圆柱体组成的以遮挡住半个流出口43,但也可由遮柱四分之一流出口43的圆柱体组成并由一个沿径向延伸的平面与前者相连接。不管哪种情况,最好是使流出口43尽可能靠近圆柱形表面34,以使端部或端壁42的圆柱表面形成刃口49,刃口49将从径向推进器35流出的乳液与其外围分离开并使足够量的乳液流进流出口43。
如图1所示,径向推进器35是盘状的,有一个径向覆盖盘57安装在靠近发动机50一侧的推进器35上。一组曲线形推进器页片52安装在覆盖盘57上,其轴向宽度从吸入室37的外缘到推进器35的外缘是减少的。
当把本发明的装置用于柴油发动机时,把发动机的燃料泵排出管接到注油管38,通过一个高压泵将高压水从给水回路送入注水阀40。发动机燃料喷射泵的给进管与乳液流出管36相连接,来自燃料喷射泵的循环燃料管与循环注入管39相连。
通过电动机,最好将推进器35的转速稳定在一个固定的速率上,如每分钟三千转。通过燃料泵将油沿切线方向以一定的压力(如1到3巴)注入吸入室37内。通过一个由发动机驱动的高压泵将水增压一定的压力,如5~10巴,再由减压阀减压到5~7巴并由注水阀间歇控制注入吸入室37中,该注水阀是由电磁操作的。由径向推进器35流出的乳液流入凹槽41中,被终端壁42阻挡后沿轴向方向流入乳液流出管36的流出管44中。同时,通过陡沿49将乳液与径向推进器内的乳液分开。通过循环管39将在燃料喷射泵循环的过量燃料引回到吸入室37内。在这里,它又与新注入的油和水相混合,新油和水的注入是在控制下进行的以使得整个循环回路总是尽可能地被充满,而使回路中没有任何气泡。
通过改变注水阀40的开启和关闭的时间间隔来控制注入吸入室37的水量。根据气缸中的燃烧状态,注水量调节/控制回路确定了乳液中水的含量并根据从燃料泵进入乳液形成装置的油量和所设水含量来计算出所需的注水量。通过控制开启和关闭注水阀的间隔来控制注水量。
Claims (9)
1、一种制备含水的油乳液的装置,其特征为该装置包括一个带泵壳(30)的径流泵,在泵室(33)内有一个径流推进器(35),在推进器轴向的前方有一推进器(35)的吸入室(37),该吸入室(37)的形状是旋转对称的,并且与一注水喷嘴(40)、一进油管(38)和一循环管(39)相连,推进器(35)由一圆柱形的壁(34)环绕着,一乳液流出管(44)的开口通向泵室(33),其中,注水喷嘴(40)、进油管(38)以及循环管(39)在推进器(35)的吸入室(37)内都有入口,在圆柱形的壁(34),上有一径向开口朝向泵室的凹槽、该凹槽沿圆柱壁的部分扇形区延伸并在推进器(35)的旋转方向的出口处末端有一阻挡台阶,乳液流出管(44)在阻挡台阶(42)前在凹槽(41)上开有出口,其出口方向横对着凹槽的外缘方向和泵室(33)的径向方向。
2、如权利要求1所述的装置,其特征为乳液流出管(44)沿着与推进器(35)的旋转轴平行的方向沿伸。
3、如权利要求1或2所述的装置,其特征为阻挡台阶(42)的母面沿着与推进器(35)的旋转轴平行的方向延伸。
4、如权利要求1~3中任一项所述的装置,其特征为阻挡台阶(42)的径向内侧端部有一刃口(49)。
5、如权利要求1~4中任一项所述的装置,其特征为凹槽(41)在乳液流出管(44)的开口(43)处的轴向宽度要大于凹槽(41)在相对于阻挡台阶(42)的另一端(15)的宽度,并且在所述开口(43)和所述凹槽(41)的端部之间有一相对于推进器(35)的旋转表面倾斜延伸的外缘表面。
6、如权利要求1~5中任一项所述的装置,其特征为沿推进器(35)中心角延伸的部分扇形区至少按大约60°角的中心角延伸。
7、如权利要求1~6中任一项所述的装置,其特征为进油管(38)和循环管(39)的开口沿切线方向通向吸入室(37),以便在吸入室(37)内产生一绕其轴旋转的涡流。
8、如权利要求1~7中任一项所述的装置,其特征为注水阀与推进器(35)的旋转轴轴向对直。
9、如权利要求1~8中任一项所述的装置,是用来为柴油发动机的喷射泵提供乳液的。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4137179A DE4137179C2 (de) | 1991-11-12 | 1991-11-12 | Vorrichtung zum Erzeugen einer Wasser-in-Öl Emulsion und Verwendung der Vorrichtung an einem Dieselmotor |
Publications (1)
Publication Number | Publication Date |
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CN1075899A true CN1075899A (zh) | 1993-09-08 |
Family
ID=6444618
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN92114395A Pending CN1075899A (zh) | 1991-11-12 | 1992-11-13 | 制备含水油乳液的装置 |
CN93102080A Pending CN1080207A (zh) | 1991-11-12 | 1993-01-23 | 配制一种水—燃油乳剂的方法和设备 |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
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CN93102080A Pending CN1080207A (zh) | 1991-11-12 | 1993-01-23 | 配制一种水—燃油乳剂的方法和设备 |
Country Status (23)
Country | Link |
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US (1) | US5542379A (zh) |
EP (2) | EP0613522B1 (zh) |
JP (1) | JP3459063B2 (zh) |
KR (1) | KR940703967A (zh) |
CN (2) | CN1075899A (zh) |
AT (2) | ATE143095T1 (zh) |
AU (2) | AU669325B2 (zh) |
BR (1) | BR9206742A (zh) |
CA (1) | CA2123423A1 (zh) |
CZ (1) | CZ116994A3 (zh) |
DE (3) | DE4137179C2 (zh) |
DK (1) | DK0613522T3 (zh) |
ES (1) | ES2095455T3 (zh) |
GR (1) | GR3022098T3 (zh) |
HU (1) | HUT70604A (zh) |
IE (1) | IE922801A1 (zh) |
IL (1) | IL103708A (zh) |
MY (1) | MY108915A (zh) |
PL (1) | PL170212B1 (zh) |
RU (1) | RU2102624C1 (zh) |
TW (1) | TW228559B (zh) |
WO (1) | WO1993010347A1 (zh) |
ZA (1) | ZA928723B (zh) |
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-
1992
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- 1992-01-23 AU AU11772/92A patent/AU669325B2/en not_active Ceased
- 1992-01-23 AT AT92902985T patent/ATE143095T1/de not_active IP Right Cessation
- 1992-01-23 CA CA002123423A patent/CA2123423A1/en not_active Abandoned
- 1992-01-23 RU RU94028287A patent/RU2102624C1/ru active
- 1992-01-23 KR KR1019940701602A patent/KR940703967A/ko active IP Right Grant
- 1992-01-23 US US08/211,871 patent/US5542379A/en not_active Expired - Fee Related
- 1992-01-23 ES ES92902985T patent/ES2095455T3/es not_active Expired - Lifetime
- 1992-01-23 AT AT96103488T patent/ATE171512T1/de not_active IP Right Cessation
- 1992-01-23 PL PL92299993A patent/PL170212B1/pl unknown
- 1992-01-23 HU HU9401366A patent/HUT70604A/hu unknown
- 1992-01-23 EP EP92902985A patent/EP0613522B1/en not_active Expired - Lifetime
- 1992-01-23 EP EP96103488A patent/EP0721063B1/en not_active Expired - Lifetime
- 1992-01-23 CZ CZ941169A patent/CZ116994A3/cs unknown
- 1992-01-23 DK DK92902985.8T patent/DK0613522T3/da active
- 1992-01-23 BR BR9206742A patent/BR9206742A/pt not_active Application Discontinuation
- 1992-01-23 DE DE69213957T patent/DE69213957T2/de not_active Expired - Fee Related
- 1992-01-23 DE DE69227133T patent/DE69227133T2/de not_active Expired - Fee Related
- 1992-01-23 JP JP50302492A patent/JP3459063B2/ja not_active Expired - Fee Related
- 1992-11-10 IE IE280192A patent/IE922801A1/en not_active Application Discontinuation
- 1992-11-10 IL IL10370892A patent/IL103708A/en not_active IP Right Cessation
- 1992-11-12 ZA ZA928723A patent/ZA928723B/xx unknown
- 1992-11-13 CN CN92114395A patent/CN1075899A/zh active Pending
- 1992-11-30 TW TW081109570A patent/TW228559B/zh active
-
1993
- 1993-01-23 CN CN93102080A patent/CN1080207A/zh active Pending
- 1993-01-26 MY MYPI93000111A patent/MY108915A/en unknown
-
1996
- 1996-04-01 AU AU50437/96A patent/AU677933B2/en not_active Ceased
- 1996-12-18 GR GR960403547T patent/GR3022098T3/el unknown
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN102762288A (zh) * | 2010-01-20 | 2012-10-31 | 奈特奇私人有限公司 | 制造燃料及可乳化成分的乳化物的设备及方法 |
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