Anti-static rubber hose of oiling machine and preparation method
An anti-static, fuel dispenser technology, applied in mechanical equipment, hoses, pipes, etc., can solve problems such as increasing fueling flow rate, and achieve the effect of preventing discharge, avoiding electrification of oil products, and small friction.
Inactive Publication Date: 2018-10-02
CHINA PETROLEUM & CHEM CORP +1
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Problems solved by technology
[0006] In order to solve the problem that a large amount of static electricity is easily generated in the rubber hose of the existing fuel dispenser, the invention adopts an anti-static design at the rubber hose, which can effectively reduce the charge density of the oil flowing through the hose, prevent the occurrence of discharge, and effectively ensure the safety of the fueling process. , laying the foundation for technical measures such as increasing the flow rate of refueling and refueling while unloading
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[0019] Such as figure 1 所示,本发明的加油机防静电胶管,由内至外依次为炭黑PTFE防静电层1、内胶层2、编织层3、外胶层4。内胶层材料为丁腈橡胶,外胶层为氯丁橡胶,编织层采用钢丝和纤维混编。
[0020] 本发明的加油机防静电胶管,通过以下步骤制备而成:
[0021] (1)使用聚氨酯球磨罐氧化锆磨球对炭黑粉体进行分散,球磨时间22小时,球磨转速为9000r / min,体系pH值为8,得到稳定的炭黑浆料;
[0022] (2)将炭黑浆料加入PTFE乳液中,炭黑添加量为1.7wt%,低速搅拌获得稳定的炭黑PTFE混合液;
[0023] (3)向混合液中添加挤出助剂,采用糊膏挤出法,挤出炭黑PTFE层,即防静电层;
[0024] (4)在密炼机中加工好内胶层,将其挤出包覆在防静电层上;
[0025] (5)通过编织机,在内胶层外壁包覆编织层;
[0026] (6)在密炼机中加工好外胶层,将其挤出包覆在编织层上;
[0027] (7)对管坯进行硫化处理,硫化温度为150℃,硫化时间为100min。
[0028] 本发明的加油机防静电胶管,防静电层采用添加纳米导电炭黑粉的聚四氟乙烯PTFE材料,PTFE具有固体材料中最小的表面张力,不粘附任何物质,可以降低油品与胶管内壁接触时的摩擦力。同时,炭黑的添加提高了内层的导电性能,采用纳米导电炭黑可以提高导电炭黑在PTFE中的分散性,添加少量炭黑即可有效提高材料的导电性,避免了添加过量炭黑导致的材料性能降低和加工性能变差。
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The invention relates to an antistatic device, in particular to an anti-static rubber hose of an oiling machine and a preparation method. The anti-static rubber hose of the oiling machine has an antistatic layer, an inner rubber layer, a braid layer and an outer rubber layer from the inside to the outside in sequence. Compared with the prior art, the anti-static rubber hose of the present invention has the following beneficial effects: a carbon black PTFE antistatic layer is added on the basis of an ordinary rubber hose, and the antistatic layer has characteristics of non-adhesion and small friction, and a dispersed nano conductive carbon black material is added, effectively improving static conductivity of an inner layer, avoiding electrification of oils, and effectively guiding away existing electrostatic charge of the oil.
Description
technical field [0001] 本发明涉及防静电设备,具体是加油机防静电胶管及制备方法。 Background technique [0002] 加油机加油过程中,燃油从埋地油罐中被泵抽出,流经埋地管线、加油机内管线、过滤器、流量计、油气回收调节阀、胶管和加油枪等部件,燃油流动过程中与这些设备的内壁摩擦会产生静电,尤其是非金属结构,如过滤器和胶管等。 [0003] 加油机的静电风险是加油站需要重点关注的安全隐患,但在以往的加油站安全规定中,防静电更加注重设备的接地和人体静电的泄放,对油品静电的关注较小。实际上当油箱口和加油枪之间没有形成有效跨接时,加油过程中油品电荷密度较高,会在加油枪出口处形成电位差,产生静电放电现象。 [0004] 在越来越大的经营压力下,加油站迫切需要提高加油流速和边卸油边加油等手段提高单位时间内的销量,这些需求也对加油站的静电安全提出了严峻的挑战。 [0005] 当前的加油机胶管中通常都添加钢丝编织层,提高抗碾压性能,同时增强胶管导电性。如ZL201320349221.0就阐述了一种“带有编织层的加油机胶管”,此类胶管总成通常电阻在4Ω以下,能够有效实现加油设备的导通。但是加油过程中,油品与钢丝编织层并不直接接触,胶管内层通常为丁腈橡胶,内胶的导电性与抗静电性均较差,依然会使流经的油品经摩擦带有大量电荷。 Contents of the invention [0006] 为了解决现有的加油机胶管内容易产生大量静电的问题,本发明在胶管处采用防静电设计可以有效降低流经胶管油品的电荷密度,防止放电现象的发生,能够有效保障加油过程的安全,为增大加油流速和边卸油边加油等技术手段奠定基础。 [0007] 本发明解决其技术问题采用的技术方案是:一种加油机防静电胶管,由内至外依次为防静电层、内胶层、编织层和外胶层。 [0008] 所述的防静电层是通过在基层PTFE中添加纳米炭黑粉末而形成的。 [0009] 本发明同时还提供一种加油机防静电胶管的制备方法,该方法包括以下步骤: [0010] (1)使用聚氨酯球磨罐氧化锆磨球对炭黑粉体进行分散,球磨时间20-24小时,球磨转速为8000-11000r / min,体系pH值为7-9,得到稳定的炭黑浆料; [0011] (2)...
Claims
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IPC IPC(8): F16L11/08
CPCF16L11/08
Inventor 修德欣蒲鹤丁莉丽王振中张健中
Owner CHINA PETROLEUM & CHEM CORP