CN110118178A - 涡旋式油气回收真空泵 - Google Patents
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Abstract
本发明涉及一种涡旋式油气回收真空泵，包括有机架、静盘、动盘、防自转机构、推力板、偏心轴等，其特征是，静盘固定在机架上，与动盘互相咬合，动盘由偏心轴驱动并由防自转机构制约，围绕静盘基圆中心，作很小半径的平面转动，挥发油气通过进气口被吸入到静盘型线的外围，随着偏心轴的旋转，挥发油气在动静盘型线互相噬合所组成的若干个月牙形压缩腔内被逐步压缩，然后从静盘中心的轴向排气孔连续排出，由于本真空泵工作运行的主要部件之间只有啮合没有接触，因此具备有输气连续平稳、振动小、噪音低、能耗小、气源清洁等诸多优点，所以更适用于在易挥发油类进行油气回收的行业领域推广使用。
Description
技术领域
本发明涉及一种真空泵，特别涉及一种用于易挥发油类在进行油气回收环节，抽气与输送时必备的油气回收真空泵。
背景技术
随着当前汽车工业的飞速发展，机动车的保有量也在迅速的增长，与此同时油气对环境的污染也与日俱增，尤其是在燃油的灌装、运输、储存、发油过程中，会产生大量的挥发，挥发到大气中的油气，形成光化学烟雾，即污染了大自然环境又造成了极大的资源浪费，同时还存在着易引起火灾和爆炸的严重安全隐患，例如，加油站为了消除隐患，就必须在加油机上安装油气回收系统，系统中采用油气回收真空泵，吸取、输送挥发油气，将其回收到地下的储油罐里，再通过特殊的工艺将油气转换成液态的燃油，这样就不但保护了环境，也大大的节省了能源，但国内的油气回收技术才刚刚起步，尤其是作为关键部件的油气回收真空泵，现有的分为活塞泵和刮片泵两大类，由于结构上的缺陷，即使加工精度再高，活塞和刮片都必须始终与缸套保持着高速紧密的摩擦运动，使得在工作过程中存在着，磨损大，噪音大，功耗大，电机及泵体易发热，易损坏，维修困难，使用寿命短等诸多缺陷。
发明内容
针对现有技术的不足，为了彻底解决上述的问题，本发明提供了一种涡旋式油气回收真空泵，此油气回收真空泵是由一个固定的渐开线涡旋盘和一个呈偏心回旋平动的渐开线运动涡旋盘组成可压缩容积的真空泵，动盘、静盘上的两个双函数方程型线相互咬合，但没有接触。
本发明为了解决上述技术问题，所采用的具体技术方案是：依照本发明提供的一种涡旋式油气回收真空泵，包括有机架、静盘、动盘、防自转机构、推力板、偏心轴等，在吸气、压缩、排气的工作过程中，静盘固定在机架上，与动盘互相咬合，动盘由偏心轴驱动并由防自转机构制约，围绕静盘基圆中心，作很小半径的平面转动，气体通过进气口被吸入到静盘型线的外围，随着偏心轴的旋转，气体在动静盘型线互相噬合所组成的若干个月牙形压缩腔内被逐步压缩，然后从静盘中心的轴向排气孔连续排出，配合油气回收装置将挥发油气回收到地下的储油罐内，再经特殊工艺将油气转换成液态的燃油，从而完成了即环保又节能的油气回收过程。
本发明的有益效果是，由于本真空泵工作运行的主要部件动盘和静盘之间只有啮合没有接触，因此具备有输气连续平稳、振动小、噪音低、能耗小、寿命长、运行可靠、气源清洁等特点，使得本真空泵可以在化工、医疗、食品、印刷、电子、军工等诸多行业中，得到更广泛的使用。
附图说明
图1是本发明的总装结构示意图
图2是本发明的静盘结构及型线A-A剖视图
图3是本发明的动盘结构及型线剖面图
图4是本发明的图3中动盘的型线B-B剖视图
图5是本发明的推力板结构图
具体实施方式
下面结合附图和实施例对本发明进一步说明。
1.如图1所示，本发明包括有：机架1、静盘2、动盘3、密封环5、密封条6、防自转环7、防自转销8、推力板9、平动轴承10、偏心轴11、前轴承12、后轴承13、配重块14、骨架油封15、联轴节16等，其特征是，机架1底端的安装止口19与动力源电机止口配合紧固安装，联轴节16将电机轴与偏心轴11的直端连接，偏心轴11被骨架油封15、后轴承13和前轴承12共同支撑安装在机架1内腔的回转中心上，偏心轴11上固定安装有配重块14，偏心轴11的偏心端安装有一个平动轴承10，并插入安装在动盘3底部的轴承孔内，动盘3的后端面上均布镶嵌有六个防自转环7，机架1的顶端面上均布设有六个防自转销8，防自转销8的另一端穿过推力板9上的过轴孔，并插入防自转环7的内孔里，推力板9被防自转销8穿过，两个端面分别与机架1的顶端面和动盘3的后端面贴紧安装，静盘2和动盘3的型线顶端凹槽内镶嵌有密封条6，静盘2与动盘3的型线部分互相咬合安装，静盘2顶端面上的环形凹槽内镶嵌有密封环5，密封环5的露出端面与动盘3的前端面密封接触，静盘2利用紧固螺钉4与机架1紧固连接在一起形成了完整的泵体。
2.如图2所示，本发明中静盘2的型线侧面设有吸气口20，在静盘2的型线中心设有排气口21，在型线顶端凹槽内镶嵌的密封条6及密封环5是由超耐磨自润滑聚合材料制成。
3.如图3、图4所示，本发明中动盘3的型线顶端凹槽内镶嵌的密封条6，是由超耐磨自润滑聚合材料制成，动盘3的外表面上有一层超硬耐磨自润滑镀层。
4.如图5所示，本发明中推力板9的外表面有一层耐磨自润滑镀层.
5.如图1、图2、图3、图4、图5所示，本发明是由一个固定的渐开线涡旋静盘2，和一个呈偏心回旋平动的渐开线运动涡旋动盘3，组成可压缩容积的真空泵，动盘3、静盘2上的两个双函数方程型线相互咬合，但没有接触，在吸气、压缩、排气的工作过程中，静盘2固定在机架1上，与动盘3互相咬合，动盘3由偏心轴11驱动并由防自转机构制约，围绕静盘2的基圆中心，作很小半径的平面转动，气体通过进气口20被吸入到静盘2型线的外围，随着偏心轴11的旋转，气体在动盘3、静盘2型线互相噬合所组成的若干个月牙形压缩腔内被逐步压缩，然后从静盘2中心的轴向排气孔21连续排出，配合油气回收装置将挥发油气回收到地下的储油罐内，再经特殊工艺将油气转换成液态的燃油，从而完成即环保又节能的油气回收过程。
以上所述仅为本发明较佳的实施例，并非因此限制本发明的实施方式及保护范围，对于本领域的技术人员而言，应当能够意识到，凡是运用本发明说明书及图示内容所作出的等同替换和显而易见的变化所得到的方案，均应当包含在本发明的保护范围之内。
Claims (8)
1.一种涡旋式油气回收真空泵，包括有机架1、静盘2、动盘3、密封环5、密封条6、防自转环7、防自转销8、推力板9、平动轴承10、偏心轴11、前轴承12、后轴承13、配重块14、骨架油封15、联轴节16等，其特征是，机架1底端的安装止口19与动力源电机止口配合紧固安装，联轴节16将电机轴与偏心轴11的直端连接，偏心轴11被骨架油封15、后轴承13和前轴承12共同支撑安装在机架1内腔的回转中心上，偏心轴11上固定安装有配重块14，偏心轴11的偏心端安装有一个平动轴承10，并插入安装在动盘3底部的轴承孔内，动盘3的后端面上均布镶嵌有六个防自转环7，机架1的顶端面上均布设有六个防自转销8，防自转销8的另一端穿过推力板9上的过轴孔，并插入防自转环7的内孔里，推力板9被防自转销8穿过，两个端面分别与机架1的顶端面和动盘3的后端面贴紧安装，静盘2和动盘3的型线顶端凹槽内镶嵌有密封条6，静盘2与动盘3的型线部分互相咬合安装，静盘2顶端面上的环形凹槽内镶嵌有密封环5，密封环5的露出端面与动盘3的前端面密封接触，螺钉4将静盘2与机架1紧固连接在一起形成了完整的泵体。
2.根据权利要求1所述的一种涡旋式油气回收真空泵，其特征是：所述机架1的连接电机端均布设有若干个通风孔17，还均布设有若干个散热片18。
3.根据权利要求1所述的一种涡旋式油气回收真空泵，其特征是：所述静盘2的型线侧面设有吸气口20，在静盘2的型线中心设有排气口21。
4.根据权利要求1所述的一种涡旋式油气回收真空泵，其特征是：所述动盘3的表面有超硬耐磨自润滑镀层。
5.根据权利要求1所述的一种涡旋式油气回收真空泵，其特征是：所述密封环5为超耐磨自润滑聚合材料制成。
6.根据权利要求1所述的一种涡旋式油气回收真空泵，其特征是：所述密封条6为超耐磨自润滑聚合材料制成。
7.根据权利要求1所述的一种涡旋式油气回收真空泵，其特征是：所述防自转环7和防自转销8之间的配合绕动半径与偏心轴11的回转半径相同。
8.根据权利要求1所述的一种涡旋式油气回收真空泵，其特征是：所述推力板9的表面有耐磨自润滑镀层。
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