CN110944738B - 用于使粘合剂发泡的方法及相关*** - Google Patents
用于使粘合剂发泡的方法及相关*** Download PDFInfo
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Abstract
本发明涉及用于生产发泡粘合剂的方法和***。用于使粘合剂发泡的方法包括:将粘合剂从供料储罐进料至泵;将由该泵输出的粘合剂输送通过粘合剂流量计;一旦粘合剂移动通过粘合剂流量计,就将空气注入粘合剂中;将粘合剂和空气的混合物进料至静态混合器;用静态混合器使混合物均匀混合,从而使得粘合剂发泡;以及将发泡粘合剂输送至产品储罐。
Description
技术领域
本发明涉及用于生产发泡粘合剂的方法和***。
背景技术
当前,存在用于将液体材料(例如,粘合剂)和气体(例如,空气)以高强度混合以生产待用于各种应用中的发泡粘合剂的各种***和方法。
所有当前可获得的发泡粘合剂***都采用转子/定子***,该***具有为转子供电的电机。转子/定子通常被称为混合头。通常,在这样的布置中,电机和混合头通过双端面机械密封而被分离。这种类型的双端面机械密封具有有限的寿命周期。这通常会导致***出现故障,并且在更换密封件之前无法工作。双端面机械密封也需要一直用加压冷却剂流体进行冷却,以避免其发生故障。
为了延长机械密封的寿命,已使用了诸如脉冲阻尼器、浪涌抑制器和非往复式容积式泵等装置。但是,这些装置仅延迟了双端面机械密封的故障,而并未解决***故障的根本问题。
当前的静态混合技术集中于液-液混合或液-气混合。静态混合器用于混合低粘度流体,而不是混合高粘度流体。低粘度流体可以在湍流状态下输送,而流动阻力(压降)很小。湍流对于静态混合***中的液-液混合和液-气混合而言是关键的。高粘度流体需要大量能量才能进入湍流状态,因为流动阻力(压降)会随粘度的增加而增加。这种高流动阻力(压降)带来了重大的设计挑战和操作考虑。
因此,尽管当前有用于使粘合剂发泡的各种***和方法,但是可以进行进一步的改进。
发明内容
根据本发明的实施方案,用于将粘合剂和空气混合以生产发泡粘合剂的发泡粘合剂***包括:供料储罐,其内部容纳有粘合剂;泵,其经由第一连接导管连接至所述供料储罐,并配置为将所述供料储罐接收的所述粘合剂输出至第二连接导管;空气供应储罐,其内部容纳有空气,所述空气供应储罐连接至第二导管以将所述空气经由空气注入口注入所述粘合剂中;以及静态混合器,其连接至所述第二连接导管用于接收所述粘合剂和空气的混合物,所述静态混合器配置为将所述混合物均匀地混合以生产发泡粘合剂。
根据方法方面,用于使粘合剂发泡的方法包括:将粘合剂从供料储罐进料至泵;将由所述泵输出的所述粘合剂输送通过粘合剂流量计;一旦所述粘合剂流过所述粘合剂流量计,则将空气注入所述粘合剂中;将所述粘合剂和空气的混合物进料至静态混合器;用所述静态混合器将所述混合物均匀混合,从而生产发泡粘合剂;以及将所述发泡粘合剂输送至产品储罐。
根据附图和以下具体实施方式,将更好地理解本发明的这些方面和其它方面。
附图说明
图1示出了根据本发明的一个实施方案的发泡粘合剂***及其部件的示意图。
具体实施方式
根据本发明的一个实施方案,参考图1,示出了发泡粘合剂***10,其配置为将高粘度材料(例如基于天然或合成聚合物的粘合剂12)和气体以预定比例混合以生产发泡粘合剂。发泡粘合剂***10包含使用静态混合器14的静态混合技术。这种静态混合器14是通常用于流体材料的连续混合的机械装置。通常,待混合的流体是液体,但是静态混合器14也可以用于混合各种气体、以及气体和流体的混合物,这一点将在下面进行更详细的描述。
当前,市场上所有可获得的发泡粘合剂***都使用利用动态混合器来混合流体材料的高功率混合头技术。这种技术(动态混合器)使用转子和定子的组合,其通常被称为混合头,并且具有为所述转子供电的电机。另外,机械密封用来分离所述电机和所述混合头,并用于防止泄漏。
本发明的发泡粘合剂***10是有利的,因为,如上所述,它利用静态混合器14来使粘合剂12发泡,这比使用动态混合器需要的部件更少。具体地,在本发明中不需要诸如电机、转子和定子等机械部件,从而提高了发泡粘合剂***10内部件的操作安全性和耐久性。另外,与其中机械密封需要一直通过加压冷却剂流体冷却的动态混合器不同,静态混合技术中不需要机械密封和冷却***,因为静态混合器14中不存在混合头。因此,可以消除由混合头和机械密封引起的发泡粘合剂***的无法工作问题。
参照图1,发泡粘合剂***10包括供料储罐16,其中储存有高粘度粘合剂12。在美国专利申请第14/092110号和美国专利申请第13/775348号中公开了适合于发泡粘合剂装置10的粘合剂12,所述美国专利申请的内容均通过援引加入的方式纳入本文。
首先,将待发泡的粘合剂12从供料储罐16经由连接供料储罐16和泵18的第一连接导管20进料至泵18中。一旦将粘合剂12供应至泵18中,泵18就将粘合剂12输出至脉动阻尼器22中,其中流速在50升/小时至2500升/小时之间且压力在0psi至10,000psi之间。
在所描述的实施方案中,泵18优选是往复式或非往复式容积式泵(例如,气动双隔膜泵、气动活塞泵等),以将粘合剂12移动至脉动阻尼器22。泵18可以依靠压缩空气或电力来操作,并且可以由可编程逻辑控制器(未示出)控制。将脉动阻尼器22优选地紧接在泵18的下游应用,以使由泵18引起的脉动和压力波动最小化,从而确保粘合剂12的平稳流动。
将粘合剂12然后经由连接泵18和静态混合器14的第二连接导管26输送通过粘合剂流量计24。粘合剂流量计24测量流过第二连接导管26进入静态混合器14的粘合剂12的流速和质量。粘合剂流量计24包括流量控制阀27,其响应于粘合剂流速计24产生的信号以调节流过其中的粘合剂12的流速或压力。
在粘合剂12通过粘合剂流量计24之后,将空气以粘合剂流量的0%至150%注入粘合剂12中。具体地,空气从空气供应储罐29移动通过空气注入口28和空气供应管线30在汇合处32进入粘合剂12中,其中空气压力在5psi至10,000psi之间,优选地在50psi至1,000psi之间。空气流量由空气流量控制器34控制,所述空气流量控制器34可以基于粘合剂流速手动设置或通过可编程逻辑控制器(未示出)设置。
将粘合剂12和空气的混合物然后进料至静态混合器14中,以进行充分且均匀的混合,从而产生小于500微米、优选地约15微米至约150微米的气泡尺寸。在本实施方案中,静态混合器14是非螺旋的,并且优选地是具有任意数量的混合元件的任何尺寸的波纹板型或x格栅型(x grid),其中混合元件具有旋转的或对准的构造。一旦完成混合并生产发泡粘合剂,其就离开静态混合器14,并通过连接静态混合器14和产品储罐36的第三连接导管39输送到产品储罐36(不加压的或加压的)。
静态混合器14是非螺旋的,如上所述,因为常规的螺旋混合器不会产生优质泡沫,因为它们最常在层流状态下运行。螺旋混合器在混合器中产生活塞流,并不断切断流体以进行混合,并且不会引起湍流。所有不遵循此原理的混合器都被归类为非螺旋静态混合器,其包括斜角型静态混合器(oblique angle type static mixer)。
发泡粘合剂***10还包括:位于泵18和粘合剂流量计24之间的第一压力传感器38,以及位于静态混合器14和产品储罐36之间的第二压力传感器40。第一压力传感器38测量流过第一连接导管20的粘合剂12的压力,第二压力传感器40测量流过第三连接导管39的发泡粘合剂的压力。
除控制逻辑外,发泡粘合剂***的开/关循环(未示出)还由操作员通过人机界面(未示出)控制。当施加过程需要产品时,发泡粘合剂***10开始和停止输送粘合剂12和空气。
根据前述内容,将认识到,根据本发明的发泡粘合剂***生产了发泡粘合剂,同时提高了发泡粘合剂***的操作安全性和耐久性。
总体而言,提供前述描述是为了示例性和说明性目的;本发明不必局限于此。更确切地说,本领域技术人员应当理解,其它修改以及针对特定情况的调整将落入如本文所示和所述的本发明的范围内以及本文所附权利要求的范围内。
Claims (15)
1.用于使粘合剂发泡的方法,所述方法包括:将粘合剂从供料储罐进料至泵;将由所述泵输出的所述粘合剂输送通过粘合剂流量计;一旦所述粘合剂流过所述粘合剂流量计,则将空气注入所述粘合剂中;将所述粘合剂和空气的混合物进料至静态混合器中,其中所述静态混合器为不具有任何转子或定子的非动态混合器;用所述静态混合器使所述混合物混合,从而生产气泡尺寸在1微米至500微米之间的发泡粘合剂;以及将所述发泡粘合剂输送至产品储罐。
2.根据权利要求1所述的方法,其中所述静态混合器是x格栅型静态混合器。
3.根据权利要求1所述的方法,其中所述静态混合器是斜角型静态混合器。
4.根据权利要求1所述的方法,其中所述泵是容积式泵。
5.根据权利要求1所述的方法,其中所述泵通过压缩空气或电力运行。
6.根据权利要求1所述的方法,其中,当将所述空气注入所述粘合剂中时,空气压力为5psi至10,000 psi。
7.根据权利要求1所述的方法,其中,当将所述空气注入所述粘合剂中时,空气压力为50 psi至1,000 psi。
8.根据权利要求1所述的方法,其中将所述空气经由空气注入口注入所述粘合剂中。
9.根据权利要求1所述的方法,其中所述气泡尺寸在15微米至150微米之间。
10.用于将粘合剂和空气混合以生产发泡粘合剂的发泡粘合剂***,该发泡粘合剂***包括:供料储罐,其内部容纳有粘合剂;泵,其经由第一连接导管连接至所述供料储罐,并配置为将从所述供料储罐接收的所述粘合剂输出至第二连接导管;空气供应储罐,其内部容纳有空气,所述空气供应储罐连接至所述第二连接导管,以将所述空气经由空气注入口注入所述粘合剂中;以及静态混合器,其连接至所述第二连接导管用于接收所述粘合剂和空气的混合物,所述静态混合器为不具有任何转子或定子的非动态混合器,并且其配置为将所述混合物均匀地混合,以生产发泡粘合剂;脉动阻尼器,所述脉动阻尼器紧接在所述泵的下游应用,以使脉动和压力波动最小化;粘合剂流量计,所述粘合剂流量计位于所述泵和所述静态混合器之间,用于测量流过所述第二连接导管的所述粘合剂的流速和质量;用于储存所述发泡粘合剂的产品储罐;位于所述泵和所述粘合剂流量计之间的第一压力传感器,以及位于所述静态混合器和所述产品储罐之间的第二压力传感器。
11.根据权利要求10所述的发泡粘合剂***,其中所述静态混合器是非螺旋的。
12.根据权利要求10所述的发泡粘合剂***,其中所述静态混合器是波纹板型静态混合器。
13.根据权利要求10所述的发泡粘合剂***,其中所述静态混合器是x格栅型静态混合器。
14.根据权利要求10所述的发泡粘合剂***,其中所述静态混合器是斜角型静态混合器。
15.根据权利要求10所述的发泡粘合剂***,其中所述泵是容积式泵。
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US201762538221P | 2017-07-28 | 2017-07-28 | |
US62/538,221 | 2017-07-28 | ||
PCT/US2018/044265 WO2019023691A1 (en) | 2017-07-28 | 2018-07-28 | ADHESIVE FOAMING METHOD AND SYSTEM THEREOF |
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CN110944738B true CN110944738B (zh) | 2022-04-29 |
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US (1) | US20200139311A1 (zh) |
EP (1) | EP3658263B1 (zh) |
JP (1) | JP7424966B2 (zh) |
CN (1) | CN110944738B (zh) |
HU (1) | HUE062890T2 (zh) |
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- 2018-07-28 EP EP18837907.7A patent/EP3658263B1/en active Active
- 2018-07-28 CN CN201880049785.8A patent/CN110944738B/zh active Active
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HUE062890T2 (hu) | 2023-12-28 |
EP3658263A4 (en) | 2021-04-21 |
EP3658263B1 (en) | 2023-05-17 |
EP3658263A1 (en) | 2020-06-03 |
WO2019023691A1 (en) | 2019-01-31 |
PL3658263T3 (pl) | 2023-09-04 |
CN110944738A (zh) | 2020-03-31 |
JP7424966B2 (ja) | 2024-01-30 |
JP2020528953A (ja) | 2020-10-01 |
US20200139311A1 (en) | 2020-05-07 |
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