WO2020056848A1

WO2020056848A1 - Shale gas fracturing flowback delivery device

Info

Publication number: WO2020056848A1
Application number: PCT/CN2018/112484
Authority: WO
Inventors: 沙月华; 夏平原; 陈俊琛; 秦庆戊; 王东晖
Original assignee: 五行科技股份有限公司
Priority date: 2018-09-20
Filing date: 2018-10-29
Publication date: 2020-03-26
Also published as: CN209011799U

Abstract

A shale gas flowback delivery device, said device (100) comprising hoses (110, 115) and joints (120, 125), the joints (120, 125) being used for connecting the hoses (110, 115); each of the hoses (110, 115) comprises an outer layer (330) of the hose, a middle layer (320), and an inner layer (310) of the hose, the inner layer (310) of the hose being made of a thermoplastic polyurethane material, the middle layer (320) being made of a reinforced fiber material, and the outer layer (330) of the hose being made of a polymer; and the surface of each of the joints (120, 125) is provided with an anticorrosion coating, and the material of the anticorrosion coating contains 6 wt% to 10 wt% of a nano-organotitanium polymer. According to said delivery device, the thermoplastic polyurethane material having corrosion resistance is used as the material of the inner layer of the hose, and the anti-corrosion coating is provided on the surface of the joints, so that a delivery system is not easily corroded when shale gas fracturing flowback having complicated chemical compositions is delivered therein, prolonging the service life of the delivery system.

Description

一种页岩气压裂返排液输送装置Shale air pressure cracking and returning liquid conveying device

交叉引用cross reference

本申请要求2018年09月20日提交的编号为CN 201821539302.6的中国申请的优先权。上述申请的内容以引用方式被包含于此。This application claims priority from the Chinese application filed on September 20, 2018 under the number CN 201821539302.6. The content of the above application is incorporated herein by reference.

技术领域Technical field

本申请涉及页岩气开采领域，特别涉及一种页岩气压裂返排液输送装置。The present application relates to the field of shale gas extraction, and in particular, to a shale gas fracturing return fluid discharge device.

背景技术Background technique

水力压裂或液压压裂技术是通过加压液体来压裂岩石，该技术已经成为用于提取和开采页岩油气、致密气、致密油和煤层气的优选方法。在页岩油气开采中，需要将压裂液输送到开采地，同时，在水力压裂完成后，留在井下的返排液需再次输送至废水处理厂进行废水处理，以进行二次利用。页岩气压裂返排液具有悬浮物多、总溶解固体含量高和成分复杂等特点，容易腐蚀输送装置。Hydraulic fracturing or hydraulic fracturing is the use of pressurized liquids to fracture rocks. This technology has become the preferred method for extracting and producing shale oil and gas, tight gas, tight oil and coalbed methane. In shale oil and gas production, the fracturing fluid needs to be transported to the production site. At the same time, after the hydraulic fracturing is completed, the return fluid left in the well needs to be transported to the wastewater treatment plant again for wastewater treatment for secondary use. The shale gas fracturing and returning fluid has the characteristics of many suspended solids, high total dissolved solid content and complex composition, etc., and it is easy to corrode the conveying device.

发明内容Summary of the Invention

本申请实施例之一提供一种页岩气压裂返排液的输送装置，包括软管和接头，所述接头用于所述软管之间的连接；所述软管包括软管外层、至少一层中间层和软管内层，所述软管内层由热塑性聚氨酯材料制成，所述至少一层中间层由增强纤维材料制成，所述软管外层由聚合物制成；所述接头表面设有防腐涂层，所述防腐涂层的涂料包含6wt％～10wt％的纳米有机钛聚合物。One of the embodiments of the present application provides a shale gas fracturing and returning liquid conveying device, which includes a hose and a joint, and the joint is used for connection between the hoses; the hose includes an outer layer of the hose At least one intermediate layer and an inner layer of a hose, the inner layer of the hose is made of a thermoplastic polyurethane material, the at least one intermediate layer is made of a reinforcing fiber material, and the outer layer of the hose is made of a polymer The surface of the joint is provided with an anticorrosive coating, and the coating of the anticorrosive coating contains 6 wt% to 10 wt% of a nano-organic titanium polymer.

在一些实施例中，所述纳米有机钛聚合物的化学结构式为：In some embodiments, the chemical structure formula of the nano-organic titanium polymer is:

式中n为1～30的整数。In the formula, n is an integer from 1 to 30.

在一些实施例中，所述聚合物选自由以下项组成的群组：热塑性聚氨酯、聚氯乙烯、热塑性聚氨酯-聚氯乙烯共混物、聚氯乙烯丁腈橡胶共混物、丙烯腈-丁二烯-苯乙烯共聚物、乙烯-乙酸乙烯酯共聚物、聚酰胺、聚酰亚胺、天然橡胶、改性天然橡胶、合成橡胶。In some embodiments, the polymer is selected from the group consisting of: thermoplastic polyurethane, polyvinyl chloride, thermoplastic polyurethane-polyvinyl chloride blend, polyvinyl chloride nitrile rubber blend, acrylonitrile-butadiene Diene-styrene copolymer, ethylene-vinyl acetate copolymer, polyamide, polyimide, natural rubber, modified natural rubber, synthetic rubber.

在一些实施例中，所述防腐涂层的涂料还包含30wt％～60wt％的成膜材料，和30wt％～64wt％的助剂。In some embodiments, the coating of the anticorrosive coating further comprises 30 wt% to 60 wt% of a film-forming material, and 30 wt% to 64 wt% of an auxiliary agent.

在一些实施例中，所述成膜材料是环氧树脂、酚醛树脂、乙烯基树脂、有机硅树脂、有机氟树脂、聚酰亚胺树脂或聚芳醚酮树脂其中的至少一种。In some embodiments, the film-forming material is at least one of epoxy resin, phenol resin, vinyl resin, silicone resin, organic fluororesin, polyimide resin, or polyaryletherketone resin.

在一些实施例中，所述防腐涂层喷涂在所述接头表面，所述防腐涂层的喷涂步骤包括：步骤1，对所述接头表面进行喷砂处理或抛丸处理，清洁度需达到Sa2.5级；步骤2，对所述接头表面进行底漆喷涂，所述底漆的湿膜厚度为80um～120um，喷涂完底漆后进入烘炉闪干，炉温控制在100～120℃，11min～14min后出炉；步骤3，对所述接头表面进行面漆喷涂，所述面漆的湿膜厚度为120um～150um，喷涂完面漆后进入烘炉闪干，炉温控制在220～250℃，16min～19min出炉。In some embodiments, the anticorrosive coating is sprayed on the surface of the joint, and the spraying step of the anticorrosive coating includes: Step 1. Sandblast or blast the surface of the joint, and the cleanliness needs to be Sa2 Grade 5; Step 2, spray the primer on the surface of the joint, the wet film thickness of the primer is 80um ~ 120um, after spraying the primer, enter the oven and flash dry, the furnace temperature is controlled at 100 ~ 120 ° C, After 11min ~ 14min, the oven will be released. Step 3, spray spray the topcoat on the surface of the joint. The wet film thickness of the topcoat is 120um ~ 150um. After spraying the topcoat, enter the oven and flash dry. ℃, baked out in 16min ~ 19min.

在一些实施例中，步骤2中对所述接头表面喷涂了两层所述底漆，其中，所述每层底漆的厚度控制在40um～60um；步骤3中对所述接头表面喷涂了三层所述面漆，其中，所述每层面漆的厚度控制在40um～50um。In some embodiments, the joint surface is sprayed with two layers of the primer in step 2, wherein the thickness of each layer of the primer is controlled between 40um and 60um; in step 3, the joint surface is sprayed with three Layer of the top coat, wherein the thickness of each layer of the paint is controlled between 40um and 50um.

在一些实施例中，所述输送装置还包括密封圈，所述密封圈设置在两个接头的连接位置，所述密封圈由氟橡胶材料制成。In some embodiments, the conveying device further includes a seal ring provided at a connection position of the two joints, and the seal ring is made of a fluoro rubber material.

在一些实施例中，所述软管的至少一层中间层为编织增强层，所述编织增强层由至少两条增强纤维编织而成。In some embodiments, at least one intermediate layer of the hose is a braided reinforcement layer, and the braided reinforcement layer is woven from at least two reinforcing fibers.

在一些实施例中，所述至少两条增强纤维包括至少一条第一增强纤维以及至少一条第二增强纤维；所述第一增强纤维和所述第二增强纤维垂直编织。In some embodiments, the at least two reinforcing fibers include at least one first reinforcing fiber and at least one second reinforcing fiber; the first reinforcing fiber and the second reinforcing fiber are braided vertically.

在一些实施例中，所述软管外层和所述软管内层的材料相同；所述软管外层和所述软管内层通过共挤法设置在所述编织增强层上。In some embodiments, the material of the outer layer of the hose and the inner layer of the hose are the same; the outer layer of the hose and the inner layer of the hose are disposed on the braided reinforcing layer by a coextrusion method.

在一些实施例中，所述输送装置包括第一软管、第一接头、第一接头外卡箍、第二软管、第二接头、第二接头外卡箍、密封圈和连接卡箍；其中，所述第一接头的第一端伸入所述第一软管一端的内部与所述第一软管连接，所述第一接头外卡箍卡接在所述第一接头第一端与所述第一软管的连接处的软管外表面；所述第二接头的第一端伸入所述第二软管一端的内部与所述第二软管连接，所述第二接头外卡箍卡接在所述第二接头第一端与所述第二软管的连接处的软管外表面；所述密封圈设置在所述第一接头第二端与所述第二接头第二端的连接位置；所述连接卡箍套设在所述密封圈外部。In some embodiments, the conveying device includes a first hose, a first joint, a first joint outer clamp, a second hose, a second joint, a second joint outer clamp, a seal ring, and a connection clamp; Wherein, the first end of the first joint extends into the inside of one end of the first hose and is connected to the first hose, and the outer clamp of the first joint is clamped at the first end of the first joint The outer surface of the hose at the connection with the first hose; the first end of the second joint projects into the inside of one end of the second hose and is connected to the second hose; the second joint An outer clamp is clamped on the outer surface of the hose where the first end of the second joint is connected to the second hose; the seal ring is provided on the second end of the first joint and the second joint The connection position of the second end; the connection clamp is sleeved outside the sealing ring.

在一些实施例中，所述第一接头外卡箍和所述第二接头外卡箍分别包括三个外卡箍组件，所述三个外卡箍组件通过螺栓两两连接形成环状结构。In some embodiments, the first joint outer clamp and the second joint outer clamp each include three outer clamp assemblies, and the three outer clamp assemblies are connected in pairs by bolts to form a ring structure.

在一些实施例中，所述密封圈套设在所述第一接头第二端与所述第二接头第二端的连接接缝外部。In some embodiments, the sealing ring is sleeved outside the connection seam between the second end of the first joint and the second end of the second joint.

在一些实施例中，所述连接卡箍包括两个半环形连接卡箍组件；所述两个半环形连接卡箍组件的两端分别设有连接孔；所述两个半环形连接卡箍组件通过所述连接孔螺栓连接形成环形结构。In some embodiments, the connection clamp includes two semi-circular connection clamp assemblies; two ends of the two semi-circular connection clamp assemblies are respectively provided with connection holes; and the two semi-circular connection clamp assemblies A ring structure is formed by bolting through the connecting holes.

本申请实施例之一提供一种软管的制造方法，所述方法包括：编织管状增强层；在所述增强层表面附上胶粘剂；基于表面附上胶粘剂的所述增强层，通过渗透共挤聚合物形成所述软管。One of the embodiments of the present application provides a method for manufacturing a hose. The method includes: weaving a tubular reinforcing layer; attaching an adhesive on the surface of the reinforcing layer; The polymer forms the hose.

在一些实施例中，所述在所述增强层表面附上胶粘剂包括：对所述增强层进行浸胶处理。In some embodiments, the attaching an adhesive on the surface of the reinforcing layer includes: dipping the reinforcing layer.

在一些实施例中，所述对所述增强层进行浸胶处理包括：在浸胶溶液中浸泡所述增强层，浸泡时间大于30秒；烘干浸泡后的所述增强层，烘干时间大于1小时，烘干温度为80～130℃。In some embodiments, the step of dipping the reinforcing layer includes: immersing the reinforcing layer in a dipping solution for a immersion time greater than 30 seconds; and drying the immersed reinforcing layer for a drying time greater than For 1 hour, the drying temperature is 80-130 ° C.

在一些实施例中，所述浸胶溶液由70wt％～80wt％水、10wt％～20wt％胶粘剂、2wt％～10wt％固化剂组成。In some embodiments, the dipping solution is composed of 70 wt% to 80 wt% water, 10 wt% to 20 wt% adhesive, and 2 wt% to 10 wt% curing agent.

在一些实施例中，所述浸胶溶液中胶粘剂的含量为15.4wt％、固化剂的含量为7.7wt％，其余为水。In some embodiments, the content of the adhesive in the dipping solution is 15.4% by weight, the content of the curing agent is 7.7% by weight, and the rest is water.

在一些实施例中，所述胶粘剂为水性聚氨酯；所述固化剂为环氧树脂，其环氧值为0.11～0.23。In some embodiments, the adhesive is an aqueous polyurethane; the curing agent is an epoxy resin, and its epoxy value is 0.11 to 0.23.

附图说明BRIEF DESCRIPTION OF THE DRAWINGS

本申请将以示例性实施例的方式进一步说明，这些示例性实施例将通过附图进行详细描述。这些实施例并非限制性的，在这些实施例中，相同的编号表示相同的结构，其中：This application will be further explained by way of exemplary embodiments, which will be described in detail with reference to the accompanying drawings. These embodiments are not restrictive. In these embodiments, the same numbers represent the same structures, where:

图1为根据本申请一些实施例所示的页岩气压裂返排液输送装置的整体结构示意图；FIG. 1 is a schematic diagram of an overall structure of a shale gas pressure fracturing and returning liquid conveying device according to some embodiments of the present application; FIG.

图2为根据本申请一些实施例所示的页岩气压裂返排液输送装置的结构***图；FIG. 2 is an exploded view of a shale gas fracturing and returning liquid conveying device according to some embodiments of the present application; FIG.

图3为根据本申请一些实施例所示的软管结构示意图；3 is a schematic structural diagram of a hose according to some embodiments of the present application;

图4为根据本申请一些实施例所示的接头表面喷涂防腐涂层的示例性流程图；FIG. 4 is an exemplary flowchart of spraying an anticorrosive coating on a surface of a joint according to some embodiments of the present application; FIG.

图5为根据本申请第一实施例所示的编织增强层的示例性编织方法示意图；5 is a schematic diagram of an exemplary weaving method for weaving a reinforcing layer according to a first embodiment of the present application;

图6为根据本申请第二实施例所示的编织增强层的示例性编织方法示意图；6 is a schematic diagram of an exemplary weaving method for weaving a reinforcing layer according to a second embodiment of the present application;

图7为根据本申请第三实施例所示的编织增强层的示例性编织方法示意图；7 is a schematic diagram of an exemplary weaving method for weaving a reinforcing layer according to a third embodiment of the present application;

图8为根据本申请第四实施例所示的编织增强层的示例性编织方法示意图；8 is a schematic diagram of an exemplary weaving method for weaving a reinforcing layer according to a fourth embodiment of the present application;

图9为根据本申请一些实施例所示的软管制造方法的示例性流程图；9 is an exemplary flowchart of a method for manufacturing a hose according to some embodiments of the present application;

图10为根据本申请一些实施例所示的渗透共挤的工艺示意图。FIG. 10 is a schematic diagram of an infiltration coextrusion process according to some embodiments of the present application.

具体实施方式detailed description

为了更清楚地说明本申请实施例的技术方案，下面将对实施例描述中所需要使用的附图作简单的介绍。显而易见地，下面描述中的附图仅仅是本申请的一些示例或实施例，对于本领域的普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图将本申请应用于其它类似情景。除非从语言环境中显而易见或另做说明，图中相同标号代表相同结构或操作。In order to explain the technical solution of the embodiment of the present application more clearly, the accompanying drawings used in the description of the embodiment will be briefly introduced below. Obviously, the drawings in the following description are just some examples or embodiments of the present application. For those of ordinary skill in the art, the present application can also be applied to these drawings without creative efforts. Other similar scenarios. Unless obvious from a locale or otherwise stated, the same reference numerals in the figures represent the same structure or operation.

如本申请和权利要求书中所示，除非上下文明确提示例外情形，“一”、“一个”、“一种”和/或“该”等词并非特指单数，也可包括复数。一般说来，术语“包括”与“包含”仅提示包括已明确标识的步骤和元素，而这些步骤和元素不构成一个排它性的罗列，方法或者设备也可能包含其它的步骤或元素。As shown in this application and the claims, the words "a", "an", "an" and / or "the" do not specifically refer to the singular, but may include the plural unless the context clearly indicates an exception. Generally speaking, the terms "including" and "comprising" are only meant to include clearly identified steps and elements, and these steps and elements do not constitute an exclusive list, and the method or equipment may also include other steps or elements.

本申请中使用了流程图用来说明根据本申请的实施例的***所执行的操作。应当理解的是，前面或后面操作不一定按照顺序来精确地执行。相反，可以按照倒序或同时处理各个步骤。同时，也可以将其他操作添加到这些过程中，或从这些过程移除某一步或数步操作。A flowchart is used in the present application to explain the operations performed by the system according to the embodiments of the present application. It should be understood that the preceding or following operations are not necessarily performed precisely in sequence. Instead, the steps can be processed in reverse order or simultaneously. At the same time, you can add other operations to these processes, or remove a step or steps from these processes.

由本申请实施例提供的页岩气压裂返排液输送装置可以应用于输送页岩气开采过程中的压裂返排液、页岩气伴生油、高矿物含量地下水等。在一些实施例中，输送装置还可以用于输送其他液体，包括但不限于清水、污水、油、胶体等。在一些实施例中，输送装置还可以在特殊处理后用于输送气体，包括但不限于煤气、天然气、加压空气、化工气体原料等。输送装置在特定情况下还可以用于运送固体。The shale gas fracturing and returning fluid conveying device provided by the embodiment of the present application can be applied to convey fracturing and returning fluid during shale gas extraction, shale gas-associated oil, high mineral content groundwater, and the like. In some embodiments, the conveying device can also be used for conveying other liquids, including but not limited to clean water, sewage, oil, colloid, and the like. In some embodiments, the conveying device can also be used to convey gas after special treatment, including but not limited to coal gas, natural gas, pressurized air, chemical gas raw materials, and the like. Conveyors can also be used to transport solids under certain conditions.

图1为根据本申请一些实施例所示的页岩气压裂返排液输送装置的整体结构示意图。图2为根据本申请一些实施例所示的页岩气压裂返排液输送装置的结构***图。在一些实施例中，页岩气返排液输送装置100可以包括软管(如第一软管110、第二软管115)和接头(如第一接头120、第二接头125)，其中，接头用于软管与软管之间的连接。在一些实施例中，接头120可以有多种形式，例如，接头120可以包括但不限于一体成型式接头、可拆卸式接头等，其中，可拆卸式接头包括但不限于伸缩接头、扣压接头、卡套接头、螺纹接头、焊接接头等。在一些实施例中，软管与接头连接的方式可以包括但不限于螺纹连接、卡扣连接、胶接、卡接、套接等一种或多种的任意组合。FIG. 1 is a schematic diagram of the overall structure of a shale gas fracturing and returning liquid conveying device according to some embodiments of the present application. FIG. 2 is an exploded view of a shale gas fracturing and returning liquid conveying device according to some embodiments of the present application. In some embodiments, the shale gas return liquid conveying device 100 may include a hose (such as the first hose 110 and a second hose 115) and a joint (such as the first joint 120 and the second joint 125), wherein, The connector is used to connect the hose to the hose. In some embodiments, the joint 120 may have various forms. For example, the joint 120 may include, but is not limited to, a one-piece joint, a detachable joint, and the like, wherein the detachable joint includes, but is not limited to, a telescopic joint, a crimp joint, Ferrule joints, threaded joints, welded joints, etc. In some embodiments, the manner of connecting the hose to the joint may include, but is not limited to, any combination of one or more of threaded connection, snap connection, glue connection, snap connection, and socket connection.

如图1和图2所示，在本实施例中，输送装置100可以包括第一软管110、第二软管115、第一接头120、第二接头125、第一接头外卡箍130、第二接头外卡箍135、密封圈140以及连接卡箍150。As shown in FIGS. 1 and 2, in this embodiment, the conveying device 100 may include a first hose 110, a second hose 115, a first joint 120, a second joint 125, a first joint outer clamp 130, The second joint outer clamp 135, the sealing ring 140 and the connection clamp 150.

在如图1和图2所示的实施例中，在安装输送装置100时，可以将第一接头120的第一端(软管连接端)伸入第一软管110一端的内部与该第一软管110连接，第一接头外卡箍130卡接在该第一接头120第一端与该第一软管110的连接处的软管外表面。同样的，可以将第二接头125的第一端伸入第二软管115一端的内部与该第二软管115连接，第二接头外卡箍135卡接在该第二接头125第一端与该第二软管115的连接处的软管外表面。通过接头外卡箍的卡接作用，可以使接头与软管的连接更加紧密和稳固，从而可以保证软管与接头连接处的密封性。在本实施例中，接头外卡箍(如第一接头外卡箍130、第二接头外卡箍135)可以包括三个外卡箍组件。在本实施例中，该三个外卡箍组件可以为相同的结构。如图1和2所示，该三个外卡箍组件可以通过螺栓两两连接形成环状结构。通过三个外卡箍组件的结构设计，可以使接头外卡箍在卡接时对连接处的作用力更均匀，从而使密封效果更好。在一些替代性实施例中，接头外卡箍还可以是其他结构。例如，接头外卡箍可以由2个或4个以上的外卡箍组件组成。例如，每个外卡箍组件可以不完全相同。又例如，卡箍组件之间可以通过其他连接方式进行两两连接，如卡扣连接、榫卯连接、胶接、丝扣连接等。In the embodiment shown in FIGS. 1 and 2, when the conveying device 100 is installed, the first end (hose connection end) of the first joint 120 can be extended into the interior of one end of the first hose 110 and the first end of the first hose 110. A hose 110 is connected, and the first joint outer clamp 130 is clamped on the outer surface of the hose where the first end of the first joint 120 is connected to the first hose 110. Similarly, the first end of the second joint 125 can be inserted into one end of the second hose 115 to be connected to the second hose 115, and the second joint outer clamp 135 is clamped at the first end of the second joint 125 The outer surface of the hose at the connection with the second hose 115. Through the clamping effect of the outer clamp of the joint, the connection between the joint and the hose can be made tighter and more stable, thereby ensuring the tightness of the joint between the hose and the joint. In this embodiment, the outer joint clamp (such as the first joint outer clamp 130 and the second joint outer clamp 135) may include three outer clamp assemblies. In this embodiment, the three outer clamp assemblies may have the same structure. As shown in Figures 1 and 2, the three outer clamp assemblies can be connected in pairs by bolts to form a ring structure. Through the structural design of the three outer clamp assemblies, the force of the joint outer clamp on the connection can be made more even when the joint is clamped, so that the sealing effect is better. In some alternative embodiments, the joint outer clamp may also have other structures. For example, the joint outer clamp may consist of two or more outer clamp assemblies. For example, each outer clamp assembly may not be exactly the same. For another example, the clamp components can be connected in pairs by other connection methods, such as snap connection, tenon-and-mortise connection, glue connection, and screw connection.

在一些实施例中，密封圈140可以设置在第一接头120第二端(接头互连端)与第二接头125第二端的连接位置，用以保证第一接头120与第二接头125连接处的密封性。在如图1和图2所示的实施例中，密封圈140可以套设在第一接头120第二端与第二接头125第二端的连接接缝外部。在一些替代性实施例中，密封圈也可以设置在第一接头120第二端与第二接头125第二端的连接接缝之间。在本实施例中，密封圈140可以为矩形密封圈。在一些替代性实施例中，密封圈140也可以为其他类型的密封圈。例如，密封圈140可以为V型、U型、O型、Y型、T型、J型密封圈等。在一些实施例中，密封圈140可以具有耐高温、耐低温、耐高压、耐磨、耐腐蚀等一种或多种特性的组合。在一些实施例中，密封圈140可以包括氟橡胶、三元乙丙橡胶、氯丁橡胶、丁基橡胶、聚氨脂橡胶、氟化橡胶、氟硅橡胶、金属橡胶等一种或多种材料的组合。在本实施例中，密封圈140可以由氟橡胶制成。在一些实施例中，密封圈140的厚度可以根据情况进行调整。In some embodiments, the sealing ring 140 may be disposed at a connection position between the second end of the first joint 120 (the joint interconnection end) and the second end of the second joint 125 to ensure that the first joint 120 is connected to the second joint 125. Hermeticity. In the embodiment shown in FIG. 1 and FIG. 2, the sealing ring 140 may be sleeved outside the connection joint between the second end of the first joint 120 and the second end of the second joint 125. In some alternative embodiments, a seal ring may also be provided between the connection seam of the second end of the first joint 120 and the second end of the second joint 125. In this embodiment, the seal ring 140 may be a rectangular seal ring. In some alternative embodiments, the seal ring 140 may also be another type of seal ring. For example, the sealing ring 140 may be a V-shaped, U-shaped, O-shaped, Y-shaped, T-shaped, J-shaped sealing ring, or the like. In some embodiments, the seal ring 140 may have a combination of one or more characteristics such as high temperature resistance, low temperature resistance, high pressure resistance, wear resistance, and corrosion resistance. In some embodiments, the seal ring 140 may include one or more materials such as fluorine rubber, ethylene-propylene diene rubber, neoprene, butyl rubber, polyurethane rubber, fluorinated rubber, fluorosilicone rubber, metal rubber, and the like. The combination. In this embodiment, the seal ring 140 may be made of fluoro rubber. In some embodiments, the thickness of the seal ring 140 can be adjusted according to circumstances.

在如图1和图2所示的实施例中，连接卡箍150可以套设在密封圈140外部，用以锁紧第一接头120与第二接头125的连接处，保证两接头的连接强度。在本实施例中，连接卡箍150可以包括两个半环形连接卡箍组件。两个半环形连接卡箍组件的两端分别设有连接孔，两个半环形连接卡箍组件可以通过两端的连接孔螺栓连接形成环形结构。在一些替代性实施例中，连接卡箍150还可以是其他结构。例如，连接卡箍150可以由三个及以上的连接卡箍组件组成。又例如，连接卡箍组件之间可以通过其他连接方式进行连接，如卡扣连接、榫卯连接、胶接、丝扣连接等。In the embodiment shown in FIG. 1 and FIG. 2, the connection clamp 150 may be sleeved outside the sealing ring 140 to lock the connection between the first joint 120 and the second joint 125 to ensure the connection strength of the two joints. . In this embodiment, the connection clamp 150 may include two semi-circular connection clamp assemblies. Two ends of the two semi-circular connection clamp components are respectively provided with connection holes, and the two semi-circular connection clamp components can be bolted through the connection holes at both ends to form a ring structure. In some alternative embodiments, the connection clamp 150 may also have other structures. For example, the connection clamp 150 may be composed of three or more connection clamp assemblies. For another example, the connection clamp components can be connected by other connection methods, such as snap connection, tenon-and-mortise connection, glue connection, and screw connection.

在一些实施例中，接头(如第一接头120、第二接头125)的材质可以为金属材料。具体的，接头可以由具有良好耐化学性和/或耐腐蚀性和/或耐冲击性和/或耐磨的金属材料制成。例如，接头的材质可以为含有耐化学性和/或耐腐蚀性和/或耐冲击性和/或耐磨的金属成分的合金。在一些实施例中，合金包括但不限于合金钢、铜合金、锌合金等。在一些实施例中，合金钢包括但不限于不锈钢、碳钢等。在一些实施例中，可以在接头表面喷涂防腐涂层。关于在接头表面喷涂防腐涂层的更多细节可以参见图4及其相关描述。In some embodiments, the material of the joints (such as the first joint 120 and the second joint 125) may be a metal material. Specifically, the joint may be made of a metal material having good chemical resistance and / or corrosion resistance and / or impact resistance and / or wear resistance. For example, the material of the joint may be an alloy containing metal components that are chemically resistant and / or corrosion resistant and / or impact resistant and / or wear resistant. In some embodiments, the alloy includes, but is not limited to, alloy steel, copper alloy, zinc alloy, and the like. In some embodiments, the alloy steel includes, but is not limited to, stainless steel, carbon steel, and the like. In some embodiments, an anticorrosive coating may be sprayed on the surface of the joint. For more details on spraying the anticorrosive coating on the surface of the joint, see FIG. 4 and related descriptions.

图3为根据本申请一些实施例所示的软管结构示意图。如图3所示，软管300(如图1-2中的第一软管110、第二软管115)可以包括内层310、至少一层中间层320、外层330。在一些实施例中，可以在软管300中增加额外的层而不脱离本申请的精神和范围。例如，可以在外层330的表面覆上保护层(如防尘保护层、抗老化层、阻燃层)、夜光层、反光层等。在一些实施例中，软管300的内径可以为150-360mm。具体的，软管内径可以为152mm(6英寸)，203mm(8英寸)，254mm(10英寸)，305mm(12英寸)或356mm(14英寸)，但是相关领域的技术人员也应当理解，该软管300的内径可以根据情况进行调整，本申请对此不做限制。FIG. 3 is a schematic structural diagram of a hose according to some embodiments of the present application. As shown in FIG. 3, the hose 300 (such as the first hose 110 and the second hose 115 in FIGS. 1-2) may include an inner layer 310, at least one middle layer 320, and an outer layer 330. In some embodiments, additional layers may be added to the hose 300 without departing from the spirit and scope of the present application. For example, the surface of the outer layer 330 may be covered with a protective layer (such as a dust protection layer, an anti-aging layer, a flame retardant layer), a luminous layer, a reflective layer, and the like. In some embodiments, the inner diameter of the hose 300 may be 150-360 mm. Specifically, the inner diameter of the hose may be 152 mm (6 inches), 203 mm (8 inches), 254 mm (10 inches), 305 mm (12 inches), or 356 mm (14 inches), but those skilled in the relevant arts should also understand that the soft The inner diameter of the tube 300 can be adjusted according to circumstances, which is not limited in this application.

在一些实施例中，内层310可以由热塑性聚氨酯(Thermoplasticpolyurethanes，TPU)材料制成。在一些实施例中，内层310的材料可以为改性TPU材料，如物理法或化学法改性的TPU材料，以提高TPU的抗氧化性、耐气候性、耐热性、耐腐蚀性等，使软管300能够适用于恶劣的工作环境。具体的，物理法改性可以是在TPU中添加助剂、无机填料或其他聚合物等。助剂可以包括但不限于抗氧剂、紫外光吸收剂或稳定剂等。无机填料可以包括但不限于纳米石英粉、碳纳米管等。其他聚合物可以包括但不限于聚氯乙烯(Polyvinyl chloride，PVC)、聚丙烯丁二烯苯乙烯(Acrylonitrile Butadiene Styrene，ABS)等。具体的，化学法改性是在TPU的主链或侧链中加入基团或者聚合物，该聚合物可以包括但不限于有机硅；基团可以包括但不限于杂环基团。在一些实施例中，可以引入聚二甲基硅氧烷(Polydimethylsiloxane，PDMS)到TPU的主链中，利用活性端基封端的PDMS与聚氨酯形成改性的TPU。在一些实施例中，可以引入PDMS到TPU的侧链中，利用侧链含有活性基团的PDMS与聚氨酯接枝反应形成改性的TPU。应当注意的是，以上关于改性TPU的描述仅出于说明目的，并不旨在限制本申请的范围。对于本领域普通技术人员来说，可以根据本申请的描述，做出各种各样的修正和改变，而这些修正和改变不会背离本申请的范围。In some embodiments, the inner layer 310 may be made of a thermoplastic polyurethane (TPU) material. In some embodiments, the material of the inner layer 310 may be a modified TPU material, such as a physical or chemical modified TPU material, to improve the oxidation resistance, weather resistance, heat resistance, and corrosion resistance of the TPU. , So that the hose 300 can be applied to a harsh working environment. Specifically, the physical modification may include adding an auxiliary agent, an inorganic filler, or other polymers to the TPU. Auxiliaries may include, but are not limited to, antioxidants, ultraviolet light absorbers, or stabilizers. The inorganic filler may include, but is not limited to, nano-quartz powder, carbon nanotubes, and the like. Other polymers may include, but are not limited to, polyvinyl chloride (PVC), acrylic butadiene styrene (Acrylonitrile Butadiene, Styrene, ABS), and the like. Specifically, the chemical modification is to add a group or a polymer to the main or side chain of the TPU. The polymer may include, but is not limited to, a silicone; the group may include, but is not limited to, a heterocyclic group. In some embodiments, polydimethylsiloxane (Polydimethylsiloxane, PDMS) can be introduced into the main chain of the TPU, and the modified TPU can be formed by using the active end group-terminated PDMS and polyurethane. In some embodiments, PDMS can be introduced into the side chain of the TPU, and the PDMS containing reactive groups in the side chain can be grafted with polyurethane to form a modified TPU. It should be noted that the above description of the modified TPU is for illustrative purposes only and is not intended to limit the scope of the application. For those of ordinary skill in the art, various modifications and changes can be made according to the description of this application, and these modifications and changes will not depart from the scope of this application.

在一些实施例中，改性的TPU还可以是从合成TPU的原料进行改进制备的TPU材料。TPU的合成原料可以包括聚酯多元醇、二异氰酸酯、扩链剂及其他助剂等。其中，聚酯多元醇的相对分子质量可以是多分散的，二异氰酸酯可以是多种异构体的混合物。在一些实施例中，可以提高合成原料的纯度。例如，可以将聚酯多元醇的分子质量控制在一定范围。又例如，二异氰酸酯的结构可以为最多两种。在一些实施例中，内层310也可以由其他耐化学性和/或耐腐蚀性的聚合物替换，例如，聚氨酯类材料、聚氯乙烯及其衍生材料、聚乙烯及其衍生材料、橡胶类材料、树脂类及通用高分子聚合物、酰胺类高聚物和酰亚胺类聚合物等。其中，聚氯乙烯及其衍生材料包括但不限于聚氯乙烯(PVC)、热塑性聚氨酯-聚氯乙烯共混物(Thermoplastic polyurethanes/Polyvinyl chloride，TPU/PVC)、聚氯乙烯丁腈橡胶(Polyvinyl chloride/Nitrile-butadiene rubber，PVC/NBR)共混物等。聚乙烯及其衍生材料包括但不限于聚乙烯、弹性体型氯化聚乙烯等。橡胶类材料包括但不限于改性天然橡胶、合成橡胶、氟橡胶等。例如，三元乙丙橡胶(Ethylene-Propylene-Diene Monomer，EPDM)、经硅酮改性的EPDM橡胶、聚烯烃类氟橡胶、亚硝基氟橡胶、四丙氟橡胶、磷腈氟橡胶以及全氟醚橡胶等。树脂类及通用高分子聚合物包括但不限于丙烯腈-丁二烯-苯乙烯共聚物、乙烯-乙酸乙烯酯共聚物等。酰胺类高聚物和酰亚胺类聚合物包括但不限于聚酰胺、聚酰亚胺等。在一些实施例中，TPU可以替换为EPDM橡胶。EPDM橡胶相比于TPU具有优良的化学稳定性，并具有较宽的温度适用范围。相关领域的技术人员应当理解，其它橡胶或热塑性材料等也可在不脱离本申请的精神和范围的前提下，在内层的制造和生产中使用。在一些实施例中，内层310的厚度可以在0.1mm到5.0mm之间，但是相关领域的技术人员也应当理解，该内层310的厚度可以根据情况进行调整。例如，对于输送腐蚀性很强的液体的软管，其内层310的厚度可以为5mm以上(如6mm、8mm等)。In some embodiments, the modified TPU may also be a TPU material that is improved from a raw material of a synthetic TPU. TPU synthetic raw materials can include polyester polyols, diisocyanates, chain extenders, and other auxiliaries. Among them, the relative molecular mass of the polyester polyol may be polydisperse, and the diisocyanate may be a mixture of various isomers. In some embodiments, the purity of the synthetic raw materials can be increased. For example, the molecular weight of the polyester polyol can be controlled within a certain range. As another example, the structure of the diisocyanate may be at most two. In some embodiments, the inner layer 310 may also be replaced by other chemical-resistant and / or corrosion-resistant polymers, such as polyurethane-based materials, polyvinyl chloride and its derivative materials, polyethylene and its derivative materials, and rubber-based materials. Materials, resins and general polymers, amide polymers and imide polymers. Among them, polyvinyl chloride and its derivative materials include, but are not limited to, polyvinyl chloride (PVC), thermoplastic polyurethane-polyvinyl chloride blends (Thermoplastic Polyurethanes / Polyvinyl chloride, TPU / PVC), and polyvinyl chloride nitrile rubber (Polyvinyl chloride) / Nitrile-butadiene rubber, PVC / NBR) blends, etc. Polyethylene and its derivative materials include, but are not limited to, polyethylene, elastomeric chlorinated polyethylene, and the like. Rubber-based materials include, but are not limited to, modified natural rubber, synthetic rubber, fluorine rubber, and the like. For example, Ethylene-Propylene-Diene Monomer (EPDM), silicone-modified EPDM rubber, polyolefin-based fluorine rubber, nitroso fluorine rubber, tetrapropylene fluorine rubber, phosphazene fluorine rubber, and all Fluoroether rubber, etc. Resins and general-purpose polymers include, but are not limited to, acrylonitrile-butadiene-styrene copolymers, ethylene-vinyl acetate copolymers, and the like. Amide-based polymers and imide-based polymers include, but are not limited to, polyamides, polyimides, and the like. In some embodiments, the TPU may be replaced with EPDM rubber. Compared with TPU, EPDM rubber has excellent chemical stability, and has a wide temperature range. Those skilled in the relevant arts should understand that other rubber or thermoplastic materials can also be used in the manufacture and production of the inner layer without departing from the spirit and scope of the present application. In some embodiments, the thickness of the inner layer 310 may be between 0.1 mm and 5.0 mm, but those skilled in the related art should also understand that the thickness of the inner layer 310 may be adjusted according to circumstances. For example, for a hose that transports highly corrosive liquids, the thickness of the inner layer 310 may be 5 mm or more (such as 6 mm, 8 mm, etc.).

中间层320位于软管300的内层310和外层330之间，可以提升软管的柔韧性，方便进行弯折，延长软管使用寿命等。在一些实施例中，中间层320可以为编织增强层，通过织机织造。例如，可以在织机上使用相对于增强层纵向延伸的经线和沿增强层成螺旋形延伸的纬线织造形成。又例如，经线和纬线可以与管道延伸方向呈一定夹角。编织增强层可以由涤纶长丝、尼龙、芳纶纤维、玄武岩纤维、石棉纤维、维尼昂纤维、聚乙烯纤维、聚丙烯纤维、木纤维、棉纤维、麻纤维、碳纤维、玻璃纤维等一种或多种的组合。在一些实施例中，编织增强层可以由管状的经线和纬线纤维织造。在一些实施例中，编织增强层还可以通过其他方式织造，如手工织造，采用其他设备织造等。在一些实施例中，编织增强层还可以包括至少一条导电金属线(例如，细铜线)在增强层上沿轴向方向上织造，以提高增强层的抗静电效果。在一些实施例中，中间层320可以包含至少一层(如一层、两层、三层等)编织增强层，每层编织增强层的厚度可以在0.5mm至7.5mm之间。但是相关领域的技术人员也应当理解，每层编织增强层的厚度可以根据情况进行调整。关于编制增强层的更多细节可以参见图5-8及其相关描述。The intermediate layer 320 is located between the inner layer 310 and the outer layer 330 of the hose 300, which can improve the flexibility of the hose, facilitate bending, and prolong the service life of the hose. In some embodiments, the intermediate layer 320 may be a woven reinforcement layer, woven by a loom. For example, weaving can be performed on a loom using warp threads extending longitudinally with respect to the reinforcing layer and weft threads extending spirally along the reinforcing layer. As another example, the warp and weft threads may be at an angle to the direction in which the pipe extends. The woven reinforcement layer can be made of polyester filament, nylon, aramid fiber, basalt fiber, asbestos fiber, Venion fiber, polyethylene fiber, polypropylene fiber, wood fiber, cotton fiber, hemp fiber, carbon fiber, glass fiber, etc. Multiple combinations. In some embodiments, the woven reinforcement layer may be woven from tubular warp and weft fibers. In some embodiments, the woven reinforcement layer may also be woven by other methods, such as hand weaving, weaving using other equipment, and the like. In some embodiments, the braided reinforcement layer may further include at least one conductive metal wire (for example, thin copper wire) woven on the reinforcement layer in an axial direction to improve the antistatic effect of the reinforcement layer. In some embodiments, the intermediate layer 320 may include at least one layer (such as one layer, two layers, three layers, etc.) of a woven reinforcement layer, and the thickness of each woven reinforcement layer may be between 0.5 mm and 7.5 mm. However, those skilled in the relevant arts should also understand that the thickness of each braided reinforcing layer can be adjusted according to circumstances. For more details on programming the enhancement layer, see Figure 5-8 and related descriptions.

在一些实施例中，外层330可以由聚合物制成。所述聚合物可以是具有良好的耐磨性、耐蚀性和耐候性特征的聚合物。其中，耐磨性指的是材料的耐磨损性能。耐蚀性体现的是材料的抗腐蚀能力。耐候性是指材料对多种室外因素的耐受能力。在一些实施例中，聚合物可以包括但不限于聚氨酯类材料、聚氯乙烯及其衍生材料、橡胶类材料、脂肪族聚合物、酰胺类高聚物和酰亚胺类聚合物等。其中，聚氨酯类材料包括但不限于热塑性聚氨酯(TPU)。聚氯乙烯及其衍生材料包括但不限于聚氯乙烯(PVC)、热塑性聚氨酯-聚氯乙烯共混物(TPU/PVC)、聚氯乙烯丁腈橡胶(PVC/NBR)共混物。橡胶类材料包括但不限于天然橡胶、改性天然橡胶或合成橡胶。树脂类及通用高分子聚合物包括但不限于丙烯腈-丁二烯-苯乙烯共聚物、乙烯-乙酸乙烯酯共聚物。酰胺类高聚物和酰亚胺类聚合物包括但不限于聚酰胺、聚酰亚胺等。热塑性聚氨酯-聚氯乙烯共混物(TPU/PVC)的质量比可以为TPU：PVC＝100：0-70。PVC与粉末状NBR的质量比可以为PVC：NBR＝100：0-70。在一些实施例中，PVC与粉末状NBR的质量比可以是100：0-50。相关领域的技术人员应当理解，其它橡胶或热塑性材料也可在不脱离本申请精神的范围的前提下，在外层的制造和生产中使用。在一些实施例中，外层330的厚度在0.1mm到5.0mm之间。但是相关领域的技术人员也应当理解，该外层330的厚度可以根据情况进行调整。在一些实施例中，外层330和内层310的材料可以相同，例如，外层330和内层310可以均采用TPU。在一些实施例中，外层330和内层310的材料可以不同。In some embodiments, the outer layer 330 may be made of a polymer. The polymer may be a polymer having good abrasion resistance, corrosion resistance, and weather resistance characteristics. Among them, abrasion resistance refers to the abrasion resistance of a material. Corrosion resistance is the material's resistance to corrosion. Weather resistance refers to the material's resistance to a variety of outdoor factors. In some embodiments, the polymer may include, but is not limited to, polyurethane-based materials, polyvinyl chloride and derivatives thereof, rubber-based materials, aliphatic polymers, amide-based polymers, and imide-based polymers. Among them, polyurethane-based materials include, but are not limited to, thermoplastic polyurethane (TPU). Polyvinyl chloride and its derivative materials include, but are not limited to, polyvinyl chloride (PVC), thermoplastic polyurethane-polyvinyl chloride blend (TPU / PVC), and polyvinyl chloride nitrile rubber (PVC / NBR) blend. Rubber-based materials include, but are not limited to, natural rubber, modified natural rubber, or synthetic rubber. Resins and general-purpose polymers include, but are not limited to, acrylonitrile-butadiene-styrene copolymers and ethylene-vinyl acetate copolymers. Amide-based polymers and imide-based polymers include, but are not limited to, polyamides, polyimides, and the like. The mass ratio of the thermoplastic polyurethane-polyvinyl chloride blend (TPU / PVC) may be TPU: PVC = 100: 0-70. The mass ratio of PVC to powdery NBR can be PVC: NBR = 100: 0-70. In some embodiments, the mass ratio of PVC to powdered NBR may be 100: 0-50. Those skilled in the relevant arts should understand that other rubber or thermoplastic materials can also be used in the manufacture and production of the outer layer without departing from the scope of the spirit of the present application. In some embodiments, the thickness of the outer layer 330 is between 0.1 mm and 5.0 mm. However, those skilled in the relevant arts should also understand that the thickness of the outer layer 330 can be adjusted according to circumstances. In some embodiments, the materials of the outer layer 330 and the inner layer 310 may be the same. For example, the outer layer 330 and the inner layer 310 may both use TPU. In some embodiments, the materials of the outer layer 330 and the inner layer 310 may be different.

在一些实施例中，制备软管300的成型方法可以是共挤压。具体的，可以在织机上织造中间层320，并将织造好的中间层320套在模具上，将内层310、外层330的原料置于相应送料口，将内层310、外层320的原料熔化。在中间层320的基础上，将熔化后的内层310、外层320原料进行共挤压。在一些实施例中，同时可以辅以外力牵引，如采用牵引机将制造完成的软管部分牵引出去，以实现软管的连续制造。在一些实施例中，也可以采用现有的其他方式制备软管300，本申请对此不做限制。In some embodiments, the molding method for preparing the hose 300 may be co-extrusion. Specifically, the intermediate layer 320 can be woven on the loom, and the woven intermediate layer 320 can be set on a mold. The raw materials of the inner layer 310 and the outer layer 330 are placed at the corresponding feeding ports. The raw material melts. Based on the intermediate layer 320, the melted raw materials of the inner layer 310 and the outer layer 320 are co-extruded. In some embodiments, external force traction can be assisted at the same time, such as using a tractor to pull out the manufactured hose part to achieve continuous manufacturing of the hose. In some embodiments, the hose 300 may also be prepared by other existing methods, which is not limited in this application.

图4为根据本申请一些实施例所示的接头表面喷涂防腐涂层的示例性流程图。在一些实施例中，例如，在运输页岩气压裂返排液过程中，接头(如第一接头120、第二接头125)的内表面会与管内液体(如压裂返排液)接触，外表面可能由于液体渗透、液体侧漏等原因与液体(如压裂返排液)接触，导致接头的表面(包括内表面和外表面)易被液体中的腐蚀性化学成分腐蚀。通过对接头表面进行防腐涂层的喷涂，可以有效的提高接头耐腐蚀性，进而可以获得延长接头使用寿命、防止接头损坏等有益效果。对接头表面喷涂防腐涂层的示例性流程如下：FIG. 4 is an exemplary flowchart of spraying an anticorrosive coating on a surface of a joint according to some embodiments of the present application. In some embodiments, for example, during the transportation of shale gas fracturing return fluid, the inner surface of the joint (such as the first joint 120, the second joint 125) will be in contact with the liquid in the pipe (such as the fracturing fluid) The outer surface may be in contact with the liquid (such as fracturing fluid) due to liquid penetration, side leakage, etc., causing the surface of the joint (including the inner surface and the outer surface) to be easily corroded by corrosive chemical components in the liquid. By spraying the surface of the joint with an anticorrosive coating, the corrosion resistance of the joint can be effectively improved, and further beneficial effects such as extending the service life of the joint and preventing damage to the joint can be obtained. An exemplary process for spray coating a joint surface is as follows:

步骤410，对接头表面进行喷砂处理或抛丸处理。具体的，通过喷砂处理或抛丸处理可以清洁接头表面。在一些实施例中，可以控制接头表面的清洁度达到Sa2.5级国家标准。并使接头表面无锈和氧化皮、露出钢铁色泽等。在一些实施例中，抛丸处理可以采用抛丸机进行，如滚筒式抛丸机、吊钩式抛丸机、或履带式抛丸机或钢板抛丸机器等。喷砂处理的方式可以包括但不限于干式喷砂或液体喷砂。具体的，干式喷砂可以使用压入式干喷砂机或吸入式干喷砂机等进行。液体喷砂可以使用液体喷砂机进行。Step 410: Sandblast or blast the joint surface. Specifically, the surface of the joint can be cleaned by sandblasting or shot blasting. In some embodiments, the cleanliness of the joint surface can be controlled to meet Sa2.5 national standards. And make the surface of the joint free of rust and scale, and expose the color of steel. In some embodiments, the shot blasting process may be performed using a shot blasting machine, such as a drum type shot blasting machine, a hook type shot blasting machine, or a crawler type shot blasting machine or a steel plate shot blasting machine. Sand blasting methods may include, but are not limited to, dry blasting or liquid blasting. Specifically, the dry blasting can be performed using a press-in dry blasting machine or a suction dry blasting machine. Liquid blasting can be performed using a liquid blasting machine.

步骤420，对接头表面进行底漆喷涂。具体的，底漆的湿膜厚度可以为80um～120um(例如，80um、90um、100um、110um、120um等)。喷涂完底漆后可以进入烘炉闪干，炉温可以控制在100～120℃(例如，100℃、110℃、115℃、120℃等)，并在11min～14min(例如，11min、12min、13min、14min等)后出炉。In step 420, primer coating is performed on the surface of the joint. Specifically, the thickness of the wet film of the primer may be 80um to 120um (for example, 80um, 90um, 100um, 110um, 120um, etc.). After spraying the primer, you can enter the oven and flash dry. The furnace temperature can be controlled at 100 ～ 120 ℃ (for example, 100 ℃, 110 ℃, 115 ℃, 120 ℃, etc.), and between 11min to 14min (for example, 11min, 12min, 13min, 14min, etc.).

在一些实施例中，底漆可以喷涂两层，每层底漆的湿膜厚度可以控制在40um～60um。例如，首先在接头表面喷涂第一层底漆，待底漆不再湿润后，在第一层底漆的基础上喷涂第二层底漆，当喷涂完所有底漆后才进入烘炉对所有层底漆进行闪干，此时底漆已不粘手，有一定强度，但未固化。但是相关领域的技术人员也应当理解，底漆的层数、湿膜的厚度、炉温和加热的时间可以根据情况进行调整。例如，可以将炉温控制在125℃左右，加热时间控制在12分钟左右。又例如，底漆的层数可以为四层，每层的厚度控制在20um～30um。又例如，底漆的厚度可以为120um～140um，分两层喷涂，每层的厚度控制在60um～70um，加热的时间控制在14min以上。在一些实施方式中，每层底漆的湿膜厚度的误差可以控制在一定误差范围以内，例如0～10um。在一些实施方式中，每层底漆喷涂完后的干化方式可以是自然风干，此方式需要在一个相对干净和密闭的空间中进行，防止灰尘等杂质对底漆的影响。在一些实施方式中，每层底漆喷涂完后的干化方式也可以是烘炉烘干，温度控制在100℃以下，时间控制在3～8min。在一些实施方式中，闪干使用的烘炉可以是普通的烘炉，例如马弗炉等。在一些实施方式中，烘炉也可以是真空烘炉或者惰性气体(如氩气、氦气等)保护的烘炉。In some embodiments, the primer can be sprayed in two layers, and the wet film thickness of each layer of the primer can be controlled between 40um and 60um. For example, first spray the first layer of primer on the surface of the joint. After the primer is no longer wet, spray the second layer of primer on the basis of the first layer of primer. After spraying all the primers, enter the oven to all The primer is flash-dried. At this time, the primer is no longer sticky, has a certain strength, but is not cured. However, those skilled in the relevant arts should also understand that the number of primer layers, the thickness of the wet film, the furnace temperature, and the heating time can be adjusted according to circumstances. For example, the furnace temperature can be controlled at about 125 ° C and the heating time can be controlled at about 12 minutes. For another example, the number of layers of the primer can be four layers, and the thickness of each layer is controlled between 20um and 30um. For another example, the thickness of the primer can be 120um ~ 140um, sprayed in two layers, the thickness of each layer is controlled between 60um ~ 70um, and the heating time is controlled above 14min. In some embodiments, the error of the wet film thickness of each layer of the primer can be controlled within a certain error range, for example, 0-10um. In some embodiments, the drying method after spraying each layer of primer may be natural air-drying. This method needs to be performed in a relatively clean and closed space to prevent the influence of impurities such as dust on the primer. In some embodiments, the drying method after spraying each layer of primer can also be oven drying, the temperature is controlled below 100 ° C., and the time is controlled within 3-8 minutes. In some embodiments, the oven used for flash drying may be a common oven, such as a muffle furnace or the like. In some embodiments, the oven may also be a vacuum oven or an oven protected by an inert gas (such as argon, helium, etc.).

步骤430，对接头表面进行面漆喷涂。面漆的湿膜厚度可以为120um～150um(例如，120um、130um、140um、150um等)。喷涂完面漆后可以进入烘炉烘干，炉温可以控制在220℃～250℃(例如，220℃、230℃、240℃、250℃等)，并在16min～19min(例如，16min、17min、18min、19min等)后出炉。具体的，面漆可以喷涂三层，每层面漆的湿膜厚度控制在40um～50um，面漆的总的湿膜厚度控制在120um～150um。例如，首先在接头表面底漆的基础上喷涂第一层面漆，待第一层面漆不再湿润后，在第一层面漆的基础上喷涂第二层面漆，待第二层面漆不再湿润后，在第二层面漆的基础上喷涂第三层面漆。当喷涂完所有面漆后才进入烘炉对所有涂层进行固化，此时各层漆膜完全固化，可以实现层间融合，消除层间附着力差的弊病。但是相关领域的技术人员也应当理解，所述湿膜的厚度、炉温和加热的时间等可以根据情况进行调整。例如，炉温可以控制在210℃左右，加热时间控制在20分钟左右。在一些实施方式中，每层面漆的湿膜厚度的误差可以控制在一定误差范围以内，例如0～10um(例如，5um、8um、10um等)。在一些实施方式中，每层面漆喷涂完后的干化方式可以是自然风干，此方式需要在一个相对干净和密闭的空间中进行，防止灰尘等杂质对面漆的影响。在一些实施方式中，每层面漆喷涂完后的干化方式也可以是烘炉烘干，例如将温度控制在100℃以下，时间控制在3～8min。在一些实施方式中，固化使用的烘炉可以是普通的烘炉，例如马弗炉等。在一些实施方式中，烘炉也可以是真空烘炉或者惰性气体(如氩气、氦气等)保护的烘炉。Step 430: spray paint on the surface of the joint. The wet film thickness of the topcoat can be 120um-150um (for example, 120um, 130um, 140um, 150um, etc.). After spraying the topcoat, it can be dried in an oven. The temperature of the furnace can be controlled between 220 ° C and 250 ° C (for example, 220 ° C, 230 ° C, 240 ° C, 250 ° C, etc.) and between 16min and 19min (for example, 16min, 17min , 18min, 19min, etc.). Specifically, the top coat can be sprayed in three layers, and the wet film thickness of each layer of the paint is controlled between 40um and 50um, and the total wet film thickness of the topcoat is controlled between 120um and 150um. For example, first spray the first layer of paint on the basis of the primer on the joint surface. After the first layer of paint is no longer wet, spray the second layer of paint on the first layer of paint. After the second layer of paint is no longer wet, On the basis of the second layer of paint, spray the third layer of paint. After spraying all the topcoats, they enter the oven to cure all the coatings. At this time, each layer of paint film is completely cured, which can achieve inter-layer fusion and eliminate the disadvantages of poor adhesion between layers. However, those skilled in the related art should also understand that the thickness of the wet film, the furnace temperature, and the heating time can be adjusted according to the situation. For example, the furnace temperature can be controlled at about 210 ° C and the heating time can be controlled at about 20 minutes. In some embodiments, the error of the wet film thickness of each layer of paint can be controlled within a certain error range, for example, 0-10um (for example, 5um, 8um, 10um, etc.). In some embodiments, the drying method after spraying of each layer of paint may be natural air-drying. This method needs to be performed in a relatively clean and closed space to prevent the influence of impurities such as dust on the topcoat. In some embodiments, the drying method after spraying each layer of paint can also be oven drying, for example, the temperature is controlled below 100 ° C. and the time is controlled within 3-8 minutes. In some embodiments, the oven used for curing may be a common oven, such as a muffle furnace or the like. In some embodiments, the oven may also be a vacuum oven or an oven protected by an inert gas (such as argon, helium, etc.).

在一些实施例中，底漆可以喷涂两层，每层底漆的湿膜厚度可以控制在40um～60um。面漆可以喷涂三层，每层面漆的湿膜厚度可以控制在120um～150um。底漆和面漆喷涂的方式可以是，首先在接头表面喷涂第一层底漆，待底漆不再湿润后，在第一层底漆的基础上喷涂第二层底漆，待底漆不再湿润后，在第二层底漆的基础上喷涂第一层面漆，待第一层面漆不再湿润后，在第一层面漆的基础上喷涂第二层面漆，待第二层面漆不再湿润后，在第二层面漆的基础上喷涂第三层面漆。当喷涂完所有底漆和面漆后才进入烘炉对所有涂层进行烘干，烘干温度控制在120℃～150℃(例如，130℃、140℃)，烘干时间控制在80min～100min(例如，85min、90min、95min)。然后再提高温度进行固化，固化温度提高至220～250℃之间，固化时间控制18min-22min。In some embodiments, the primer can be sprayed in two layers, and the wet film thickness of each layer of the primer can be controlled between 40um and 60um. The top coat can be sprayed in three layers, and the wet film thickness of each layer of paint can be controlled between 120um and 150um. Primer and topcoat can be sprayed by first spraying the first layer of primer on the surface of the joint. After the primer is no longer wet, spray the second layer of primer on the basis of the first layer of primer. After re-wetting, spray the first layer of paint on the basis of the second layer of primer. After the first layer of paint is no longer wet, spray the second layer of paint on the basis of the first layer of paint and wait for the second layer of paint to cease. After wetting, spray the third coat on top of the second coat. After spraying all the primers and topcoats, enter the oven to dry all the coatings. The drying temperature is controlled at 120 ℃ ～ 150 ℃ (for example, 130 ℃, 140 ℃), and the drying time is controlled at 80min ～ 100min (For example, 85min, 90min, 95min). Then increase the temperature for curing. The curing temperature is increased to 220 ～ 250 ℃. The curing time is controlled from 18min to 22min.

在一些实施例中，接头表面喷涂的底漆和面漆可以均为防腐涂层。在一些实施例中，可以仅面漆为防腐涂层。防腐涂层的涂料可以包含6wt％～10wt％(例如，6wt％、8wt％、10wt％等)的纳米有机钛聚合物。其中，纳米有机钛聚合物的结构式可以为：In some embodiments, the primer and topcoat sprayed on the joint surface may both be anticorrosive coatings. In some embodiments, only the topcoat may be an anticorrosive coating. The coating of the anticorrosive coating may include 6 wt% to 10 wt% (for example, 6 wt%, 8 wt%, 10 wt%, etc.) of a nano-organic titanium polymer. The structural formula of the nano organic titanium polymer may be:

式中n为1～30的整数。In the formula, n is an integer from 1 to 30.

防腐涂层的涂料可以进一步包含30wt％～60wt％的成膜材料，和30wt％～64wt％的助剂。成膜材料可以包括但不限于是环氧树脂、酚醛树脂、乙烯基树脂、有机硅树脂、有机氟树脂、聚酰亚胺树脂或聚芳醚酮树脂等。助剂可以包括但不限于涂料增韧助剂、漆涂料功能助剂、有机钛偶联剂、固化剂等。在一个具体实施例中，防腐涂层的成分为：8wt％纳米有机钛聚合物，32wt％成膜材料，60％助剂。经过试验表明，此成分比例的防腐涂层既能保证涂料喷涂后的涂层耐化学性、耐候性、耐酸性和柔韧性，又能保证涂层与涂层之间粘结的稳定性，进而保证涂层的使用寿命。The coating of the anticorrosive coating may further include 30% to 60% by weight of a film-forming material, and 30% to 64% by weight of an auxiliary agent. The film-forming material may include, but is not limited to, an epoxy resin, a phenol resin, a vinyl resin, a silicone resin, an organic fluorine resin, a polyimide resin, or a polyaryletherketone resin. Auxiliaries may include, but are not limited to, paint toughening aids, paint coating functional aids, organic titanium coupling agents, curing agents, and the like. In a specific embodiment, the composition of the anticorrosive coating is: 8 wt% nano-organic titanium polymer, 32 wt% film-forming material, and 60% auxiliary agent. Experiments show that the anticorrosive coating with this composition ratio can not only ensure the chemical resistance, weather resistance, acid resistance and flexibility of the coating after spray coating, but also ensure the stability of the adhesion between the coating and the coating, and further Guaranteed coating life.

在一些实施例中，底漆最主要的作用是使漆面平整，从而对面漆起支撑作用，使漆面看起来更为丰满，面漆最主要的作用是抵抗外界的环境的影响，是整个涂层质量的保证。在一些实施例中，面漆和底漆的防腐涂层的涂料的各化学成分配比可以不同。例如，底漆的纳米有机钛聚合物的含量可以低于面漆的纳米有机钛聚合物的含量。又例如，为了充分发挥底漆的填平作用，可以添加填料或相应的其他成分的含量(如助剂)。具体的，填料可以包括但不限于活性氧化锌、超细锌粉等。在一些实施例中，底漆的成分可以为：7.8wt％的纳米有机钛聚合物，46wt％的成膜材料，和39.2wt％的助剂，7％的填料。面漆的成分可以为：9.5wt％的纳米有机钛聚合物，57wt％的成膜材料和33.5wt％的助剂。此时，既能保证底漆填平，也能保证面漆的耐腐蚀性和/或耐磨性和/或耐化学性。In some embodiments, the main function of the primer is to smooth the paint surface, thereby supporting the top paint and making the paint look fuller. The main function of the top paint is to resist the influence of the external environment. Guarantee of the entire coating quality. In some embodiments, the respective chemical composition distribution ratios of the coatings of the anticorrosive coating of the topcoat and the primer may be different. For example, the content of the nano-organic titanium polymer of the primer may be lower than that of the top-organic titanium polymer. For another example, in order to give full play to the filling effect of the primer, the content of fillers or other components (such as additives) can be added. Specifically, the filler may include, but is not limited to, active zinc oxide, ultrafine zinc powder, and the like. In some embodiments, the composition of the primer may be: 7.8% by weight of a nano-organic titanium polymer, 46% by weight of a film-forming material, and 39.2% by weight of an auxiliary agent, and 7% of a filler. The composition of the topcoat can be: 9.5% by weight of a nano-organic titanium polymer, 57% by weight of a film-forming material, and 33.5% by weight of an auxiliary agent. At this time, both the primer filling level and the topcoat's corrosion resistance and / or abrasion resistance and / or chemical resistance can be guaranteed.

应当注意，喷涂防腐涂层的示例性流程图400的以上描述是出于说明的目的而提供的，不旨在限制本申请的范围。对于本领域的普通技术人员来说，可以根据本申请的描述，做出各种各样的修正和改变。然而，这些修正和改变不会背离本申请的范围。在一些实施例中，在喷涂底漆和面漆之前，可以按比例在底漆和面漆中加入固化剂，以达到使涂层快速干燥、增加附着力、增加漆面硬度、提高油漆的化学稳定性、防腐能力等效果。例如，底漆/固化剂的质量配比可以控制在4.5:1～5.5:1，面漆的/固化剂的质量配比可以控制在3.5:1～4.5:1。具体的，固化剂可以是常见的固化剂或新型的固化剂，例如，脂肪族胺类固化剂、芳族胺类固化剂等。其中，脂肪族胺类固化剂可以包括但不限于乙烯基三胺(Diethylenetriamine，DETA)、二氨基环己烷(diaminocyctohexane，DACH)等。芳族胺类固化剂可以包括但不限于间苯二胺(M-phenylenediamine，m-PDA MPD)、间苯二甲胺(M-xylylenediamine，MXDA)等。It should be noted that the above description of the exemplary flowchart 400 of spraying an anticorrosive coating is provided for illustrative purposes and is not intended to limit the scope of the application. For those of ordinary skill in the art, various modifications and changes can be made according to the description of this application. However, these amendments and changes will not depart from the scope of this application. In some embodiments, before spraying the primer and topcoat, a curing agent can be added to the primer and topcoat in proportion to achieve rapid drying of the coating, increase adhesion, increase the hardness of the paint, and improve the chemistry of the paint. Stability, corrosion resistance and other effects. For example, the mass ratio of the primer / curing agent can be controlled from 4.5: 1 to 5.5: 1, and the mass ratio of the topcoat / curing agent can be controlled from 3.5: 1 to 4.5: 1. Specifically, the curing agent may be a common curing agent or a novel curing agent, for example, an aliphatic amine curing agent, an aromatic amine curing agent, and the like. Wherein, the aliphatic amine curing agent may include, but is not limited to, vinylethylene triamine (DETA), diaminocyctohexane (DACH), and the like. The aromatic amine curing agent may include, but is not limited to, m-phenylenediamine (m-PDA MPD), m-xylylenediamine (MXDA), and the like.

图5是根据本申请第一实施例所示的编织增强层的示例性编织方法示意图。如图5所示，增强层的编织方法可以为斜纹编织方法。具体的，斜纹编织方法中的经线(沿x轴方向的增强纤维)和纬线(沿y轴方向的增强纤维)相互垂直编织，并在编制好的纤维表面呈现一定角度的斜纹线。在一些实施例中，斜纹倾斜方向可以向右斜。如图5所示，斜纹向右斜的编织方法可以为：提供多束增强纤维510，该多束增强纤维可以在第一方向(例如，图中x方向)上按照一定间隔平行分布，以形成经线；同时提供多束增强纤维520在第二方向(例如，图中y方向)上按一定间隔平行分布，以形成纬线；经线510与纬线520按照“Z”型拈线并采用二上二下的方式进行编织，以形成图5中所示的编织样式。在一些实施例中，经线和纬线还可以采用其他方式进行编织，例如，二上一下、三上一下等。如图6是根据本申请第二实施例所示的编织增强层的示例性编织方法示意图，在图6所示的实施例中，经线与纬线编织方式采用的是二上一下的方式向右倾斜编织。在一些实施例中，编织增强层的增强纤维可以是加捻或不加捻的。在一些实施例中，编织增强层的增强纤维可以为纤维束、纤维绳、纤维条和/或纤维带等。在一些实施例中，当编织增强层在使用时，其x轴方向的增强纤维可以与软管形成一定角度(图中未示出)。例如，x轴方向的增强纤维与软管轴线的夹角可以为0～90°(例如，0°、30°、45°、60°、90°等)。FIG. 5 is a schematic diagram of an exemplary weaving method for weaving a reinforcing layer according to a first embodiment of the present application. As shown in FIG. 5, the weaving method of the reinforcing layer may be a twill weaving method. Specifically, in the twill weaving method, the warp threads (reinforcing fibers along the x-axis direction) and the weft threads (reinforcing fibers along the y-axis direction) are woven perpendicular to each other, and a twill line with a certain angle is presented on the prepared fiber surface. In some embodiments, the diagonal direction can be inclined to the right. As shown in FIG. 5, the weaving method of the diagonal twill to the right may be: providing multiple bundles of reinforcing fibers 510, which may be distributed in parallel in a first direction (for example, the x direction in the figure) at a certain interval to form Warp threads; simultaneously provide multiple bundles of reinforcing fibers 520 in parallel in a second direction (for example, the y direction in the figure) at a certain interval to form a weft;

warp threads

510 and 520 follow a "Z" type reed line and use two up and two down Weaving is performed in a manner to form the weaving pattern shown in FIG. 5. In some embodiments, the warp and weft threads can also be woven in other ways, such as two-on-one, three-on-one, and so on. FIG. 6 is a schematic diagram of an exemplary weaving method for weaving a reinforcing layer according to a second embodiment of the present application. In the embodiment shown in FIG. 6, the warp and weft threads are woven in a two-up and one-down manner. Weaving. In some embodiments, the reinforcing fibers of the braided reinforcing layer may be twisted or untwisted. In some embodiments, the reinforcing fibers of the braided reinforcing layer may be fiber bundles, fiber ropes, fiber slivers, and / or fiber ribbons. In some embodiments, when the braided reinforcing layer is in use, its reinforcing fibers in the x-axis direction may form an angle with the hose (not shown in the figure). For example, the angle between the reinforcing fiber in the x-axis direction and the axis of the hose may be 0 to 90 ° (for example, 0 °, 30 °, 45 °, 60 °, 90 °, etc.).

图7是根据本申请第三实施例所示的编织增强层的示例性编织方法示意图。如图7所示，增强层的编织方法可以为斜纹编织方法(向左倾斜)。其编织方式与图5中向右倾斜的编织方式类似，在此不再赘述。上述斜纹编织方式由于弯曲次数较少，从而损失的强度小，力学性能更好。FIG. 7 is a schematic diagram of an exemplary weaving method for weaving a reinforcing layer according to a third embodiment of the present application. As shown in FIG. 7, the weaving method of the reinforcing layer may be a twill weaving method (inclined to the left). The weaving manner is similar to the weaving manner inclined to the right in FIG. 5, and is not repeated here. The aforementioned twill weave method has less bending strength due to less bending times and better mechanical properties.

图8是根据本申请第四实施例所示的编织增强层的示例性编织方法示意图。如图8所示，增强层的编织方法可以为垂直交叉编织(或称平纹编织)方法。具体的，垂直交叉编织方法可以为：经线与纬线采用一上一下的方式进行垂直交叉编织。上述垂直交叉编织方式由于网眼均匀、结构紧密、密度高、屈曲次数多、交织点多等特点，可以使编织层的耐磨性等更好。FIG. 8 is a schematic diagram of an exemplary weaving method for weaving a reinforcing layer according to a fourth embodiment of the present application. As shown in FIG. 8, the weaving method of the reinforcing layer may be a vertical cross weaving (or plain weaving) method. Specifically, the vertical cross-knitting method may be: vertical warp and weft are used to perform vertical cross-knitting in a one-on-one manner. The above-mentioned vertical cross weaving method can make the abrasion resistance of the knitted layer better due to the characteristics of uniform mesh, tight structure, high density, multiple buckling times, and multiple interlacing points.

值得注意的是，图5-8只是编织增强层的示例性编织方法，仅为说明目的，并不构成对本申请的限制。在一些实施例中，本领域技术人员还可以采用现有的其他任意方式进行编织。It is worth noting that FIGS. 5-8 are only exemplary weaving methods for weaving the reinforcing layer, and are for illustrative purposes only and do not constitute a limitation on the present application. In some embodiments, those skilled in the art may also use any other existing methods for weaving.

在一些实施例中，可以对页岩气压裂返排液输送装置进行测试。具体的，测试方法可以包括：In some embodiments, a shale gas fracturing return fluid delivery device may be tested. Specifically, the test method may include:

(1)软管TPU耐液体测试(1) TPU liquid resistance test

本测试针对是软管内层和软管外层均为相同的TPU材料的情况。本测试可以根据TPU材料相关的耐液体实验方法进行，以测试在液体环境中，TPU材料的质量变化、体积变化、力学强度变化、硬度变化等指标。具体的，首先可以对软管进行裁剪(如裁剪成25mm×50mm的长方形)以得到多个试验样品。然后分别根据测试的标准文件对试验样品浸泡若干天(如5天、15天、30天、60天等)，及将部分试验样品在80℃环境下进行加速老化实验。具体的，经过30天的浸泡测试，在不同液体和温度环境下，软管内外层的质量、体积以及力学性能均无明显变化。This test is for the case where the inner and outer layers of the hose are the same TPU material. This test can be carried out according to the test method of liquid resistance of TPU materials, in order to test the quality change, volume change, mechanical strength change, hardness change and other indicators of TPU materials in a liquid environment. Specifically, first, the hose may be cut (for example, cut into a rectangle of 25 mm × 50 mm) to obtain a plurality of test samples. Then immerse the test sample for several days (such as 5 days, 15 days, 30 days, 60 days, etc.) according to the test standard documents, and perform accelerated aging experiments on some test samples at 80 ° C. Specifically, after a 30-day immersion test, there were no significant changes in the quality, volume, and mechanical properties of the inner and outer layers of the hose under different liquid and temperature environments.

(2)接头防腐测试(2) Joint anticorrosion test

将无处理，表面氧化处理及喷涂防腐涂层的钢片放入压裂返排液模拟液中进行168小时80℃浸泡实验。其中，喷涂防腐涂层的钢片按照图4及其相应步骤进行喷涂。具体的，先对钢片表面进行喷砂处理，然后对钢片表面喷涂底漆，最后对钢片表面喷涂面漆。具体地，喷砂处理控制钢片表面的清洁度达到Sa2.5级国家标准。对钢片表面喷涂两层底漆，每层底漆的湿膜厚度为50um±5um，底漆的总厚度为100um±10um。采用真空烘炉闪干，炉温控制在110℃，并在12min钟后出炉。底漆的涂料为防腐涂料，具体成分为：7.8wt％的纳米有机钛聚合物，46wt％的成膜材料，和39.2wt％的助剂，7％的填料。在底漆的基础上，对钢片表面喷涂三层面漆，每层面漆的湿膜厚度为45um±5um，面漆的总厚度为135um±15um。采用真空烘炉固化，炉温控制在230℃，并在18min钟后出炉。面漆的涂料的成分为：8wt％的纳米有机钛聚合物、45wt％成膜材料、47wt％助剂。The untreated, surface-oxidized and anti-corrosion-coated steel sheet was placed in a fracturing fluid simulation fluid for 168 hours at 80 ° C. The steel sheet sprayed with the anticorrosive coating is sprayed according to FIG. 4 and corresponding steps. Specifically, the surface of the steel sheet is first subjected to sandblasting treatment, then the surface of the steel sheet is sprayed with a primer, and finally the surface of the steel sheet is sprayed with a topcoat. Specifically, the cleanliness of the surface of the steel sheet controlled by the sand blasting treatment reaches the national standard of Sa2.5. Spray two layers of primer on the surface of the steel sheet, the wet film thickness of each layer of primer is 50um ± 5um, and the total thickness of the primer is 100um ± 10um. A vacuum oven was used for flash drying, and the furnace temperature was controlled at 110 ° C, and the furnace was released after 12 minutes. The coating of the primer is an anticorrosive coating, and the specific components are: 7.8% by weight of a nano-organic titanium polymer, 46% by weight of a film-forming material, 39.2% by weight of an auxiliary agent, and 7% of a filler. Based on the primer, three layers of paint are sprayed on the surface of the steel sheet. The wet film thickness of each layer of paint is 45um ± 5um, and the total thickness of the topcoat is 135um ± 15um. It adopts vacuum oven for curing, the furnace temperature is controlled at 230 ℃, and it is released after 18min. The composition of the paint of the top coat is: 8 wt% nano-organic titanium polymer, 45 wt% film-forming material, and 47 wt% auxiliary agent.

结果发现：无处理的钢片腐蚀严重、表面氧化处理的钢片轻微腐蚀、喷涂防腐涂层的钢片无腐蚀现象。此外，还将经过168小时浸泡后的涂层进行GB/T9286色漆和清漆漆膜的划格试验，划格法测试为0级划线平滑，网格没有出现涂层剥离现象。It was found that: the untreated steel sheet had severe corrosion, the surface oxidation-treated steel sheet was slightly corroded, and the steel sheet sprayed with anticorrosive coating had no corrosion phenomenon. In addition, the coating after 168 hours of immersion will be subjected to the cross-cut test of GB / T9286 colored paint and varnish paint film. The cross-cut method test is smooth with 0-level scribe lines, and the grid does not show coating peeling.

此外，将喷涂防腐涂层的钢片进行化学介质浸泡试验，结果如下：In addition, the steel sheet sprayed with the anticorrosive coating was subjected to a chemical medium immersion test, and the results were as follows:

从上表中可以看出，喷涂了防腐涂层后的钢片对上述化学介质均具有较好的耐蚀性。As can be seen from the table above, the steel sheet after spraying the anticorrosive coating has good corrosion resistance to the above chemical media.

图9为根据本申请一些实施例所示的软管制造方法的示例性流程图。如图9所示，该软管制造方法900可以包括：FIG. 9 is an exemplary flowchart of a method for manufacturing a hose according to some embodiments of the present application. As shown in FIG. 9, the hose manufacturing method 900 may include:

步骤910，编织管状增强层。具体的，在一些实施例中，管状增强层可以通过织机织造。例如，可以在织机上使用相对于增强层纵向延伸的经线和沿增强层成螺旋形延伸的纬线织造形成。又例如，经线和纬线可以与管道延伸方向呈一定夹角。编织增强层可以由涤纶长丝、尼龙、芳纶纤维、玄武岩纤维、石棉纤维、维尼昂纤维、聚乙烯纤维、聚丙烯纤维、木纤维、棉纤维、麻纤维、碳纤维、玻璃纤维等一种或多种的组合。在一些实施例中，编织增强层可以由管状的经线和纬线纤维织造。在一些实施例中，编织增强层还可以通过其他方式织造，如手工织造，采用其他设备织造等。在一些实施例中，编织增强层还可以包括至少一条导电金属线(例如，细铜线)在增强层上沿轴向方向上织造，以提高增强层的抗静电效果。关于编织管状增强层的更多细节可以参见图5-图8及其相关描述。Step 910: Weave a tubular reinforcing layer. Specifically, in some embodiments, the tubular reinforcing layer may be woven by a loom. For example, weaving can be performed on a loom using warp threads extending longitudinally with respect to the reinforcing layer and weft threads extending spirally along the reinforcing layer. As another example, the warp and weft threads may be at an angle to the direction in which the pipe extends. The woven reinforcement layer can be made of polyester filament, nylon, aramid fiber, basalt fiber, asbestos fiber, Venion fiber, polyethylene fiber, polypropylene fiber, wood fiber, cotton fiber, hemp fiber, carbon fiber, glass fiber, etc. Multiple combinations. In some embodiments, the woven reinforcement layer may be woven from tubular warp and weft fibers. In some embodiments, the woven reinforcement layer may also be woven by other methods, such as hand weaving, weaving using other equipment, and the like. In some embodiments, the braided reinforcement layer may further include at least one conductive metal wire (for example, thin copper wire) woven on the reinforcement layer in an axial direction to improve the antistatic effect of the reinforcement layer. For more details about the woven tubular reinforcing layer, please refer to FIGS. 5-8 and related descriptions.

步骤920，在增强层表面附上胶粘剂。在一些实施例中，在增强层表面附上胶粘剂可以包括对增强层进行浸胶处理。具体的，在一些实施例中，该浸胶处理可以包括在浸胶溶液中浸泡增强层，浸泡时间大于30秒(例如，32秒、35秒、40秒、60秒、120秒等)。在一些实施例中，对增强层进行浸胶处理还可以包括对浸泡后的增强层进行烘干，以去除浸胶溶液中的水分。烘干时间大于1小时(例如，1.1小时、1.2小时、1.4小时、1.5小时、2小时等)，烘干温度为80℃～130℃(例如，80℃、90℃、100℃、110℃、130℃等)。烘干完成后，浸胶溶液中的胶粘剂能够成膜地附着在增强层表面(如内表面和外表面)，以便于聚合物能够更稳定地与增强层结合以形成软管的内层和外层。在一些实施例中，对增强层的浸胶处理还可以包括现有的其他处理方式，本申请对此不做限制。例如，浸泡增强层之前，可以对增强层进行清洁处理，以使增强层表面更干净，便于胶粘剂附着。具体的，增强层在浸胶溶液中浸泡之前，可以先采用乙醇等常规清洗溶剂对其进行洗涤。In step 920, an adhesive is attached to the surface of the reinforcing layer. In some embodiments, attaching an adhesive to the surface of the reinforcing layer may include dipping the reinforcing layer. Specifically, in some embodiments, the dipping treatment may include soaking the reinforcing layer in the dipping solution for a soaking time greater than 30 seconds (for example, 32 seconds, 35 seconds, 40 seconds, 60 seconds, 120 seconds, etc.). In some embodiments, dipping the reinforcing layer may further include drying the soaking reinforcing layer to remove moisture from the dipping solution. The drying time is greater than 1 hour (for example, 1.1 hours, 1.2 hours, 1.4 hours, 1.5 hours, 2 hours, etc.), and the drying temperature is 80 ° C to 130 ° C (for example, 80 ° C, 90 ° C, 100 ° C, 110 ° C, 130 ° C, etc.). After drying, the adhesive in the dipping solution can adhere to the surface of the reinforcing layer (such as the inner surface and the outer surface) in a film, so that the polymer can be more stably combined with the reinforcing layer to form the inner and outer layers of the hose Floor. In some embodiments, the dipping process for the reinforcing layer may further include other existing processing methods, which are not limited in this application. For example, before soaking the reinforcing layer, the reinforcing layer may be cleaned to make the surface of the reinforcing layer cleaner and facilitate the adhesion of the adhesive. Specifically, before the reinforcing layer is immersed in the dipping solution, it may be washed with a conventional cleaning solvent such as ethanol.

在一些实施例中，浸泡增强层所用的浸胶溶液可以由水、胶粘剂和固化剂组成。具体的，水的含量可以为70wt％～80wt％(例如，70wt％、74wt％、76.9wt％、80wt％等)，胶粘剂的含量可以为10wt％～20wt％(例如，10wt％、12wt％、15.4wt％、20wt％等)，固化剂的含量可以为2wt％～ 10wt％(例如，2wt％、5wt％、7.7wt％、10wt％等)。在一个具体实施例中，浸胶溶液的成分为：15.4wt％的胶粘剂、7.7wt％的固化剂，76.9wt％的水。经过试验表明，采用此成分比例的浸胶溶液浸泡增强层，胶粘剂与增强层表面结合的效果更好。在一些实施例中，浸胶溶液中的水可以包括但不限于蒸馏水、自来水、去离子水等。在一些实施例中，浸胶溶液中的胶粘剂可以是水性聚氨酯。在一些替代性实施例中，该胶粘剂也可以由其他粘合剂替换，例如，水溶型粘合剂、热熔型胶粘剂、溶剂型胶粘剂、乳液型粘合剂、无溶剂液体粘合剂等。在一些实施例中，浸胶溶液中的固化剂可以是环氧树脂。在一些实施例中，环氧树脂的环氧值可以为0.11～0.23(例如，0.11、0.18、0.20、0.23等)。在一些替代性实施例中，固化剂也可以是其他常见的固化剂或新型的固化剂，例如，脂肪族胺类固化剂、芳族胺类固化剂、异氰酸酯类固化剂等。其中，脂肪族胺类固化剂可以包括但不限于乙烯基三胺(Diethylenetriamine，DETA)、二氨基环己烷(diaminocyctohexane，DACH)等。芳族胺类固化剂可以包括但不限于间苯二胺(M-phenylenediamine，m-PDA MPD)、间苯二甲胺(M-xylylenediamine，MXDA)等。异氰酸酯类固化剂可以包括但不限于二苯甲烷二异氰酸酯(Diphenyl-methane-diisocyanate，MDI)、甲苯二异氰酸酯(Toluene diisocyanate，TDI)等。在一些实施例中，浸胶溶液还可以包括现有的其他成分，本申请对此不做限制。例如，浸胶溶液还可以包括其他添加剂，如成膜剂、分散剂等。In some embodiments, the dipping solution used to soak the reinforcing layer may consist of water, an adhesive, and a curing agent. Specifically, the content of water may be 70 wt% to 80 wt% (eg, 70 wt%, 74 wt%, 76.9 wt%, 80 wt%, etc.), and the content of the adhesive may be 10 wt% to 20 wt% (eg, 10 wt%, 12 wt%, 15.4 wt%, 20 wt%, etc.), and the content of the curing agent may be 2 wt% to 10 wt% (for example, 2 wt%, 5 wt%, 7.7% wt, 10 wt%, etc.). In a specific embodiment, the components of the dipping solution are: 15.4% by weight of an adhesive, 7.7% by weight of a curing agent, and 76.9% by weight of water. Tests have shown that using the dipping solution with this composition ratio to soak the reinforcing layer, the effect of bonding the adhesive to the surface of the reinforcing layer is better. In some embodiments, the water in the dipping solution may include, but is not limited to, distilled water, tap water, deionized water, and the like. In some embodiments, the adhesive in the dipping solution may be an aqueous polyurethane. In some alternative embodiments, the adhesive can also be replaced by other adhesives, such as water-soluble adhesives, hot-melt adhesives, solvent-based adhesives, emulsion-type adhesives, solvent-free liquid adhesives, and the like. In some embodiments, the curing agent in the dipping solution may be an epoxy resin. In some embodiments, the epoxy value of the epoxy resin may be 0.11 to 0.23 (for example, 0.11, 0.18, 0.20, 0.23, etc.). In some alternative embodiments, the curing agent may also be another common curing agent or a new type of curing agent, for example, an aliphatic amine curing agent, an aromatic amine curing agent, an isocyanate curing agent, and the like. Wherein, the aliphatic amine curing agent may include, but is not limited to, vinylethylene triamine (DETA), diaminocyctohexane (DACH), and the like. The aromatic amine curing agent may include, but is not limited to, m-phenylenediamine (m-PDA MPD), m-xylylenediamine (MXDA), and the like. The isocyanate-based curing agent may include, but is not limited to, diphenyl-methane-diisocyanate (MDI), toluene diisocyanate (TDI), and the like. In some embodiments, the dipping solution may further include other existing components, which is not limited in the present application. For example, the dipping solution may further include other additives such as a film former, a dispersant, and the like.

在一些实施例中，烘干浸泡后的增强层可以是在烘炉中进行。具体的，在一些实施例中，烘炉可以是普通的烘炉，例如马弗炉等。在一些实施例中，烘炉也可以是真空烘炉或者惰性气体(如氩气、氦气等)保护的烘炉。在一些实施例中，也可以在室内或者室外加热烘干，例如，电加热、火焰加热等。在一些实施例中，烘干后，增强层表面的胶粘剂膜具有典型的0.05～0.40mm的厚度。在不同的情况下该厚度值可以更厚或更薄，本申请对此不做限制。In some embodiments, drying and soaking the reinforcing layer may be performed in an oven. Specifically, in some embodiments, the oven may be a common oven, such as a muffle furnace or the like. In some embodiments, the oven may also be a vacuum oven or an oven protected by an inert gas (such as argon, helium, etc.). In some embodiments, heating and drying can also be performed indoors or outdoors, for example, electric heating, flame heating, and the like. In some embodiments, after drying, the adhesive film on the surface of the reinforcing layer has a thickness of typically 0.05 to 0.40 mm. The thickness value can be thicker or thinner under different circumstances, which is not limited in this application.

步骤430，基于表面附上胶粘剂的增强层，通过渗透共挤聚合物形成软管。在一些实施例中，可以利用渗透共挤设备1000，通过渗透共挤聚合物形成软管。具体的，如图10所示，渗透共挤设备1000可以包括挤出机(图中未示出)和共挤模具，其中，共挤模具包括外模具1030和内模具1040，内模具1040上设有通孔1041。渗透共挤过程可以包括：将增强层1010套设在内模具1040外部并置于外模具1030中，聚合物通过挤出机挤出后，渗透进增强层和内模具1040内部，当内模具1040内部被渗透的聚合物充满后，渗透的聚合物将从通孔溢出，溢出的聚合物在内模具1040和增强层1010的挤压下形成软管内层。进一步，聚合物通过挤压机挤出至增强层1010的外部，增强层外部的聚合物在增强层1010和外模具1030的挤压下形成软管外层。在一些实施例中，渗透共挤设备还可以包括与内模具1040配合使用的送带轮机构1020，该送带轮机构1020可以用于输送增强层1010。同时，该送带轮机构1020可以卡住内模具1040，以防止内模具偏离其所在位置。具体的，送带轮机构1020与内模具1040可以为压辊连接。在本申请的实施例中，送带轮机构1020位于共挤模具的后方，后方是指与输送方向1050相反的方向，从而送带轮机构1020在向前输送增强层1010时，可以在内模具1040后方拉住内模具。在一些实施例中，渗透共挤设备还可以包括用于牵引软管的牵引机构、配重机构和卷绕机构等。在一些实施例中，也可以采用现有的其他装置/设备以通过渗透共挤聚合物形成软管，本申请对此不做限制。In step 430, a hose is formed by infiltrating a co-extruded polymer based on a reinforcing layer of an adhesive attached to the surface. In some embodiments, an osmotic coextrusion device 1000 may be utilized to form a hose by osmotic coextrusion of a polymer. Specifically, as shown in FIG. 10, the infiltration coextrusion device 1000 may include an extruder (not shown in the figure) and a coextrusion die, wherein the coextrusion die includes an outer die 1030 and an inner die 1040, and the inner die 1040 is provided on the There are through holes 1041. The infiltration and coextrusion process may include: placing the reinforcing layer 1010 outside the inner mold 1040 and placing it in the outer mold 1030. After the polymer is extruded through the extruder, it penetrates into the reinforcement layer and the inner mold 1040. When the inner mold 1040 After the interior is filled with the infiltrated polymer, the infiltrated polymer will overflow from the through hole, and the overflowed polymer will form the inner layer of the hose under the squeeze of the inner mold 1040 and the reinforcing layer 1010. Further, the polymer is extruded to the outside of the reinforcing layer 1010 through an extruder, and the polymer outside the reinforcing layer forms an outer layer of the hose under the extrusion of the reinforcing layer 1010 and the outer mold 1030. In some embodiments, the osmotic coextrusion device may further include a pulley mechanism 1020 used in cooperation with the inner mold 1040, and the pulley mechanism 1020 may be used to transport the reinforcing layer 1010. At the same time, the belt feeding mechanism 1020 can catch the inner mold 1040 to prevent the inner mold from deviating from its position. Specifically, the belt feeding roller mechanism 1020 and the inner mold 1040 may be connected by a pressure roller. In the embodiment of the present application, the belt-feeding wheel mechanism 1020 is located behind the co-extrusion die. The rear refers to the direction opposite to the conveying direction 1050, so that the belt-feeding wheel mechanism 1020 can transport the reinforcing layer 1010 forward, and it can Pull the inner mold behind 1040. In some embodiments, the osmotic coextrusion device may further include a traction mechanism, a weight mechanism, a winding mechanism, and the like for traction hoses. In some embodiments, other existing devices / equipment can also be used to form the hose by infiltration and coextrusion of the polymer, which is not limited in this application.

在一些实施例中，用于渗透共挤的聚合物可以包括但不限于聚氨酯类材料、聚氯乙烯及其衍生材料、橡胶类材料、脂肪族聚合物、酰胺类高聚物和酰亚胺类聚合物等。其中，聚氨酯类材料包括但不限于热塑性聚氨酯(TPU)。聚氯乙烯及其衍生材料包括但不限于聚氯乙烯(PVC)、热塑性聚氨酯-聚氯乙烯共混物(TPU/PVC)、聚氯乙烯丁腈橡胶(PVC/NBR)共混物。橡胶类材料包括但不限于天然橡胶、改性天然橡胶或合成橡胶。树脂类及通用高分子聚合物包括但不限于丙烯腈-丁二烯-苯乙烯共聚物、乙烯-乙酸乙烯酯共聚物。酰胺类高聚物和酰亚胺类聚合物包括但不限于聚酰胺、聚酰亚胺等。热塑性聚氨酯-聚氯乙烯共混物(TPU/PVC)的质量比可以为TPU：PVC＝100：0-70。PVC与粉末状NBR的质量比可以为PVC：NBR＝100：0-70。在一些实施例中，PVC与粉末状NBR的质量比可以是100：0-50。相关领域的技术人员应当理解，其它橡胶或热塑性材料也可在不脱离本申请精神的范围的前提下，在软管的制造和生产中使用。例如，氟塑料、聚芳醚酮等。In some embodiments, polymers used for infiltration coextrusion may include, but are not limited to, polyurethane-based materials, polyvinyl chloride and its derivative materials, rubber-based materials, aliphatic polymers, amide-based polymers, and imides Polymer, etc. Among them, polyurethane-based materials include, but are not limited to, thermoplastic polyurethane (TPU). Polyvinyl chloride and its derivative materials include, but are not limited to, polyvinyl chloride (PVC), thermoplastic polyurethane-polyvinyl chloride blend (TPU / PVC), and polyvinyl chloride nitrile rubber (PVC / NBR) blend. Rubber-based materials include, but are not limited to, natural rubber, modified natural rubber, or synthetic rubber. Resins and general-purpose polymers include, but are not limited to, acrylonitrile-butadiene-styrene copolymers and ethylene-vinyl acetate copolymers. Amide-based polymers and imide-based polymers include, but are not limited to, polyamides, polyimides, and the like. The mass ratio of the thermoplastic polyurethane-polyvinyl chloride blend (TPU / PVC) may be TPU: PVC = 100: 0-70. The mass ratio of PVC to powdery NBR can be PVC: NBR = 100: 0-70. In some embodiments, the mass ratio of PVC to powdered NBR may be 100: 0-50. Those skilled in the relevant arts should understand that other rubber or thermoplastic materials can also be used in the manufacture and production of hoses without departing from the scope of the spirit of the present application. For example, fluoroplastics, polyaryletherketone, and the like.

应该注意的是，关于流程900的描述出于说明性目的，并不用于限制本申请的保护范围。对于本领域的技术人员来说，可以在本申请的指示下做出多种改变和修改。然而，这些改变和修改不会脱离本申请的保护范围。例如，步骤920可以是通过共挤压的方式在增强层表面附上胶粘剂。It should be noted that the description of the process 900 is for illustrative purposes and is not intended to limit the scope of protection of the present application. For those skilled in the art, various changes and modifications can be made under the instruction of this application. However, these changes and modifications will not depart from the scope of protection of this application. For example, step 920 can be co-extrusion to attach an adhesive to the surface of the reinforcing layer.

本申请实施例可能带来的有益效果包括但不限于：(1)提高输送装置中软管对页岩气压裂返排液的耐腐蚀性；(2)提高输送装置中接头对页岩气压裂返排液的耐腐蚀性；(3)提高输送装置整体对页岩气压裂返排液的耐腐蚀性；(4)提高涂层与接头、涂层与涂层之间的稳定性；(5)提高软管增强层与内层、外层之间结合的稳定性；(6)降低软管制备工艺的复杂性。需要说明的是，不同实施例可能产生的有益效果不同，在不同的实施例里，可能产生的有益效果可以是以上任意一种或几种的组合，也可以是其他任何可能获得的有益效果。The beneficial effects that the embodiments of the present application may bring include, but are not limited to: (1) improving the corrosion resistance of the hose in the conveying device to the shale gas fracturing return fluid; (2) improving the joint in the conveying device against shale gas Corrosion resistance of fracturing return fluid; (3) Improving the corrosion resistance of shale gas fracturing return fluid as a whole; (4) Improving the stability of coatings and joints, and between coatings and coatings (5) improve the stability of the bonding between the hose reinforcement layer and the inner and outer layers; (6) reduce the complexity of the hose preparation process. It should be noted that different embodiments may have different beneficial effects. In different embodiments, the possible beneficial effects may be any one or a combination of the foregoing, or any other beneficial effects that may be obtained.

上文已对基本概念做了描述，显然，对于本领域技术人员来说，上述详细披露仅仅作为示例，而并不构成对本申请的限定。虽然此处并没有明确说明，本领域技术人员可能会对本申请进行各种修改、改进和修正。该类修改、改进和修正在本申请中被建议，所以该类修改、改进、修正仍属于本申请示范实施例的精神和范围。The basic concepts have been described above. Obviously, for those skilled in the art, the above detailed disclosure is merely an example, and does not constitute a limitation on the present application. Although it is not explicitly stated here, those skilled in the art may make various modifications, improvements and amendments to this application. Such modifications, improvements and amendments are suggested in this application, so such modifications, improvements and amendments still belong to the spirit and scope of the exemplary embodiments of this application.

同时，本申请使用了特定词语来描述本申请的实施例。如“一个实施例”、“一实施例”、和/或“一些实施例”意指与本申请至少一个实施例相关的某一特征、结构或特点。因此，应强调并注意的是，本说明书中在不同位置两次或多次提及的“一实施例”或“一个实施例”或“一个替代性实施例”并不一定是指同一实施例。此外，本申请的一个或多个实施例中的某些特征、结构或特点可以进行适当的组合。Meanwhile, specific words are used in this application to describe the embodiments of this application. For example, "one embodiment", "an embodiment", and / or "some embodiments" means a certain feature, structure, or characteristic related to at least one embodiment of the present application. Therefore, it should be emphasized and noted that the "one embodiment" or "one embodiment" or "an alternative embodiment" mentioned two or more times in different places in this specification does not necessarily refer to the same embodiment . In addition, certain features, structures, or characteristics in one or more embodiments of the present application may be appropriately combined.

此外，本领域技术人员可以理解，本申请的各方面可以通过若干具有可专利性的种类或情况进行说明和描述，包括任何新的和有用的工序、机器、产品或物质的组合，或对他们的任何新的和有用的改进。In addition, those skilled in the art can understand that aspects of this application can be illustrated and described through several patentable categories or situations, including any new and useful processes, machines, products, or combinations of materials, or their Any new and useful improvements.

此外，除非权利要求中明确说明，本申请所述处理元素和序列的顺序、数字字母的使用、或其他名称的使用，并非用于限定本申请流程和方法的顺序。尽管上述披露中通过各种示例讨论了一些目前认为有用的发明实施例，但应当理解的是，该类细节仅起到说明的目的，附加的权利要求并不仅限于披露的实施例，相反，权利要求旨在覆盖所有符合本申请实施例实质和范围的修正和等价组合。例如，虽然以上所描述的***组件可以通过硬件设备实现，但是也可以只通过软件的解决方案得以实现，如在现有的服务器或移动设备上安装所描述的***。In addition, unless explicitly stated in the claims, the order of processing elements and sequences described in this application, the use of alphanumeric characters, or the use of other names is not intended to limit the order of the processes and methods of this application. Although the above disclosure discusses some embodiments of the invention that are currently considered useful through various examples, it should be understood that such details are for illustrative purposes only, and that the appended claims are not limited to the disclosed embodiments only. Instead, the rights The requirements are intended to cover all modifications and equivalent combinations that are within the spirit and scope of the embodiments of this application. For example, although the system components described above can be implemented by hardware devices, they can also be implemented only by software solutions, such as installing the described system on an existing server or mobile device.

同理，应当注意的是，为了简化本申请披露的表述，从而帮助对一个或多个发明实施例的理解，前文对本申请实施例的描述中，有时会将多种特征归并至一个实施例、附图或对其的描述中。但是，这种披露方法并不意味着本申请对象所需要的特征比权利要求中提及的特征多。实际上，实施例的特征要少于上述披露的单个实施例的全部特征。For the same reason, it should be noted that, in order to simplify the expressions disclosed in this application and thereby help the understanding of one or more inventive embodiments, the foregoing description of the embodiments of the application sometimes incorporates multiple features into one embodiment, In the drawings or their description. However, this disclosure method does not mean that the subject of the present application requires more features than those mentioned in the claims. Indeed, the features of an embodiment are less than all the features of a single embodiment disclosed above.

一些实施例中使用了描述成分、属性数量的数字，应当理解的是，此类用于实施例描述的数字，在一些示例中使用了修饰词“大约”、“近似”或“大体上”来修饰。除非另外说明，“大约”、“近似”或“大体上”表明所述数字允许有±20％的变化。相应地，在一些实施例中，说明书和权利要求中使用的数值参数均为近似值，该近似值根据个别实施例所需特点可以发生改变。在一些实施例中，数值参数应考虑规定的有效数位并采用一般位数保留的方法。尽管本申请一些实施例中用于确认其范围广度的数值域和参数为近似值，在具体实施例中，此类数值的设定在可行范围内尽可能精确。In some embodiments, numbers describing the number of components and attributes are used. It should be understood that, for such numbers used in the description of the embodiments, the modifiers "about", "approximately" or "substantially" are used in some examples. Modification. Unless stated otherwise, "about", "approximately" or "substantially" indicates that the number allows for a variation of ± 20%. Accordingly, in some embodiments, the numerical parameters used in the specification and claims are approximate values, and the approximate values may be changed according to the characteristics required by individual embodiments. In some embodiments, the numerical parameter should take the specified significant digits into account and adopt a general digits retention method. Although the numerical ranges and parameters used to confirm the breadth of the range in some embodiments of this application are approximate values, in specific embodiments, the setting of such values is as accurate as possible within the feasible range.

针对本申请引用的每个专利、专利申请、专利申请公开物和其他材料，如文章、书籍、说明书、出版物、文档等，特此将其全部内容并入本申请作为参考。与本申请内容不一致或产生冲突的申请历史文件除外，对本申请权利要求最广范围有限制的文件(当前或之后附加于本申请中的)也除外。需要说明的是，如果本申请附属材料中的描述、定义、和/或术语的使用与本申请所述内容有不一致或冲突的地方，以本申请的描述、定义和/或术语的使用为准。For each patent, patent application, patent application publication, and other materials cited in this application, such as articles, books, instructions, publications, documents, etc., the entire contents thereof are hereby incorporated by reference. Except for application history files that are inconsistent with or conflicting with the content of this application, except for those files that have the broadest scope of the claims in this application (currently or later attached to this application). It should be noted that if there is any inconsistency or conflict between the use of descriptions, definitions, and / or terms in the accompanying materials of this application, the descriptions, definitions and / or use of terms in this application shall prevail .

最后，应当理解的是，本申请中所述实施例仅用以说明本申请实施例的原则。其他的变形也可能属于本申请的范围。因此，作为示例而非限制，本申请实施例的替代配置可视为与本申请的教导一致。相应地，本申请的实施例不仅限于本申请明确介绍和描述的实施例。Finally, it should be understood that the embodiments described in this application are only used to illustrate the principles of the embodiments of this application. Other variations may also fall within the scope of this application. Therefore, by way of example and not limitation, alternative configurations of embodiments of the present application may be considered consistent with the teachings of the present application. Accordingly, the embodiments of the present application are not limited to the embodiments explicitly introduced and described in the present application.

Claims

一种页岩气压裂返排液的输送装置，其特征在于，包括软管和接头，所述接头用于所述软管之间的连接；A conveying device for shale gas fracturing return fluid, which comprises a hose and a joint, and the joint is used for connection between the hoses;

所述软管包括软管外层、至少一层中间层和软管内层，所述软管内层由热塑性聚氨酯材料制成，所述至少一层中间层由增强纤维材料制成，所述软管外层由聚合物制成；The hose includes an outer layer of a hose, at least one intermediate layer, and an inner layer of the hose, the inner layer of the hose is made of a thermoplastic polyurethane material, the at least one intermediate layer is made of a reinforcing fiber material, the The outer layer of the hose is made of polymer;

所述接头表面设有防腐涂层，所述防腐涂层的涂料包含6wt％～10wt％的纳米有机钛聚合物。The surface of the joint is provided with an anticorrosive coating, and the coating of the anticorrosive coating contains 6wt% to 10wt% of nano organic titanium polymer.
如权利要求1所述的输送装置，其特征在于，所述纳米有机钛聚合物的化学结构式为：The conveying device according to claim 1, wherein the chemical structure formula of the nano-organic titanium polymer is:

式中n为1～30的整数。In the formula, n is an integer from 1 to 30.
如权利要求1所述的输送装置，其特征在于，所述聚合物选自由以下项组成的群组：热塑性聚氨酯、聚氯乙烯、热塑性聚氨酯-聚氯乙烯共混物、聚氯乙烯丁腈橡胶共混物、丙烯腈-丁二烯-苯乙烯共聚物、乙烯-乙酸乙烯酯共聚物、聚酰胺、聚酰亚胺、天然橡胶、改性天然橡胶、合成橡胶。The conveying device according to claim 1, wherein the polymer is selected from the group consisting of thermoplastic polyurethane, polyvinyl chloride, thermoplastic polyurethane-polyvinyl chloride blend, polyvinyl chloride nitrile rubber Blend, acrylonitrile-butadiene-styrene copolymer, ethylene-vinyl acetate copolymer, polyamide, polyimide, natural rubber, modified natural rubber, synthetic rubber.
如权利要求1所述的输送装置，其特征在于，所述防腐涂层的涂料还包含30wt％～60wt％的成膜材料，和30wt％～64wt％的助剂。The conveying device according to claim 1, wherein the coating of the anticorrosive coating further comprises 30 wt% to 60 wt% of a film-forming material, and 30 wt% to 64 wt% of an auxiliary agent.
如权利要求4所述的输送装置，其特征在于，所述成膜材料是环氧树脂、酚醛树脂、乙烯基树脂、有机硅树脂、有机氟树脂、聚酰亚胺树脂或聚芳醚酮树脂其中的至少一种。The conveying device according to claim 4, wherein the film-forming material is epoxy resin, phenol resin, vinyl resin, silicone resin, organic fluorine resin, polyimide resin, or polyaryletherketone resin At least one of them.
如权利要求1所述的输送装置，其特征在于，所述防腐涂层喷涂在所述接头表面，所述防腐涂层的喷涂步骤包括：The conveying device according to claim 1, wherein the anticorrosive coating is sprayed on the surface of the joint, and the spraying step of the anticorrosive coating comprises:

步骤1，对所述接头表面进行喷砂处理或抛丸处理，清洁度需达到Sa2.5级；Step 1. Sandblasting or shot blasting the surface of the joint, the cleanliness needs to reach Sa2.5 level;

步骤2，对所述接头表面进行底漆喷涂，所述底漆的湿膜厚度为80um～120um，喷涂完底漆后进入烘炉闪干，炉温控制在100～120℃，11min～14min后出炉；Step 2: spray the primer on the surface of the joint. The wet film thickness of the primer is 80um ~ 120um. After spraying the primer, enter the oven and flash dry. The furnace temperature is controlled at 100 ~ 120 ℃, after 11min ~ 14min Come out

步骤3，对所述接头表面进行面漆喷涂，所述面漆的湿膜厚度为120um～150um，喷涂完面漆后进入烘炉闪干，炉温控制在220～250℃，16min～19min出炉。Step 3: spray paint on the surface of the joint. The wet film thickness of the paint is 120um ~ 150um. After spraying the paint, enter the oven and flash dry. .
如权利要求6所述的输送装置，其特征在于，The conveying device according to claim 6, wherein:

步骤2中对所述接头表面喷涂了两层所述底漆，其中，所述每层底漆的厚度控制在40um～60um；In step 2, two layers of the primer are spray-coated on the surface of the joint, wherein the thickness of each layer of the primer is controlled between 40um and 60um;

步骤3中对所述接头表面喷涂了三层所述面漆，其中，所述每层面漆的厚度控制在40um～50um。In step 3, three layers of the topcoat are spray-coated on the surface of the joint, wherein the thickness of each layer of the paint is controlled between 40um and 50um.
如权利要求1所述的输送装置，其特征在于，还包括密封圈，所述密封圈设置在两个接头的连接位置，所述密封圈由氟橡胶材料制成。The conveying device according to claim 1, further comprising a seal ring provided at a connection position of the two joints, wherein the seal ring is made of a fluoro rubber material.
如权利要求1所述的输送装置，其特征在于，所述软管的至少一层中间层为编织增强层，所述编织增强层由至少两条增强纤维编织而成。The conveying device according to claim 1, wherein at least one intermediate layer of the hose is a braided reinforcing layer, and the braided reinforcing layer is knitted by at least two reinforcing fibers.
如权利要求9所述的输送装置，其特征在于，所述至少两条增强纤维包括至少一条第一增强纤维以及至少一条第二增强纤维；所述第一增强纤维和所述第二增强纤维垂直编织。The conveying device according to claim 9, wherein the at least two reinforcing fibers include at least one first reinforcing fiber and at least one second reinforcing fiber; the first reinforcing fiber and the second reinforcing fiber are vertical Weaving.
如权利要求9所述的输送装置，其特征在于，所述软管外层和所述软管内层的材料相同；所述软管外层和所述软管内层通过共挤法设置在所述编织增强层上。The conveying device according to claim 9, characterized in that the material of the outer layer of the hose and the inner layer of the hose are the same; and the outer layer of the hose and the inner layer of the hose are disposed at On the woven reinforcement layer.
如权利要求1所述的输送装置，其特征在于，包括第一软管、第一接头、第一接头外卡箍、第二软管、第二接头、第二接头外卡箍、密封圈和连接卡箍；其中，The conveying device according to claim 1, comprising a first hose, a first joint, a first joint outer clamp, a second hose, a second joint, a second joint outer clamp, a seal ring, and Attach the clamp; where,

所述第一接头的第一端伸入所述第一软管一端的内部与所述第一软管连接，所述第一接头外卡箍卡接在所述第一接头第一端与所述第一软管的连接处的软管外表面；The first end of the first joint extends into the interior of one end of the first hose and is connected to the first hose. The outer clamp of the first joint is clamped at the first end of the first joint and connected to the first hose. The outer surface of the hose at the connection of the first hose;

所述第二接头的第一端伸入所述第二软管一端的内部与所述第二软管连接，所述第二接头外卡箍卡接在所述第二接头第一端与所述第二软管的连接处的软管外表面；The first end of the second joint extends into the inside of one end of the second hose and is connected to the second hose. The outer clamp of the second joint is clamped at the first end of the second joint and connected to the second hose. The outer surface of the hose at the connection of the second hose;

所述密封圈设置在所述第一接头第二端与所述第二接头第二端的连接位置；The sealing ring is arranged at a connection position between the second end of the first joint and the second end of the second joint;

所述连接卡箍套设在所述密封圈外部。The connection clamp is sleeved outside the sealing ring.
如权利要求12所述的输送装置，其特征在于，所述第一接头外卡箍和所述第二接头外卡箍分别包括三个外卡箍组件，所述三个外卡箍组件通过螺栓两两连接形成环状结构。The conveying device according to claim 12, wherein the first joint outer clamp and the second joint outer clamp each include three outer clamp components, and the three outer clamp components are connected by bolts. Connected one by one to form a ring structure.
如权利要求12所述的输送装置，其特征在于，所述密封圈套设在所述第一接头第二端与所述第二接头第二端的连接接缝外部。The conveying device according to claim 12, wherein the sealing ring is sleeved outside the connection joint between the second end of the first joint and the second end of the second joint.
如权利要求12所述的输送装置，其特征在于，所述连接卡箍包括两个半环形连接卡箍组件；所述两个半环形连接卡箍组件的两端分别设有连接孔；所述两个半环形连接卡箍组件通过所述连接孔螺栓连接形成环形结构。The conveying device according to claim 12, wherein the connection clamp comprises two semi-circular connection clamp assemblies; two ends of the two semi-circular connection clamp assemblies are respectively provided with connection holes; and The two semi-circular connection clamp assemblies are bolted through the connection holes to form a ring structure.
一种软管的制造方法，其特征在于，所述方法包括：A method for manufacturing a hose, characterized in that the method includes:

编织管状增强层；Braided tubular reinforcement

在所述增强层表面附上胶粘剂；Attaching an adhesive to the surface of the reinforcing layer;

基于表面附上胶粘剂的所述增强层，通过渗透共挤聚合物形成所述软管。The hose is formed by infiltrating a co-extruded polymer based on the reinforcing layer with a surface attached with an adhesive.
如权利要求16所述的软管制造方法，其特征在于，所述在所述增强层表面附上胶粘剂包括：对所述增强层进行浸胶处理。The method for manufacturing a hose according to claim 16, wherein the attaching an adhesive on the surface of the reinforcing layer comprises: dipping the reinforcing layer.
如权利要求17所述的软管制造方法，其特征在于，所述对所述增强层进行浸胶处理包括：The method for manufacturing a hose according to claim 17, wherein the step of dipping the reinforcing layer comprises:

在浸胶溶液中浸泡所述增强层，浸泡时间大于30秒；Immersing the reinforcing layer in the dipping solution for a immersion time greater than 30 seconds;

烘干浸泡后的所述增强层，烘干时间大于1小时，烘干温度为80～130℃。After drying the soaked reinforcing layer, the drying time is longer than 1 hour, and the drying temperature is 80-130 ° C.
如权利要求18所述的软管制造方法，其特征在于，所述浸胶溶液由70wt％～80wt％水、10wt％～20wt％胶粘剂、2wt％～10wt％固化剂组成。The method for manufacturing a hose according to claim 18, wherein the dipping solution is composed of 70 wt% to 80 wt% water, 10 wt% to 20 wt% adhesive, and 2 wt% to 10 wt% curing agent.
如权利要求19所述的软管制造方法，其特征在于，所述浸胶溶液中胶粘剂的含量为15.4wt％、固化剂的含量为7.7wt％，其余为水。The method for manufacturing a hose according to claim 19, wherein the content of the adhesive in the dipping solution is 15.4 wt%, the content of the curing agent is 7.7% by weight, and the rest is water.
如权利要求19所述的软管制造方法，其特征在于，所述胶粘剂为水性聚氨酯；所述固化剂为环氧树脂，其环氧值为0.11～0.23。The method for manufacturing a hose according to claim 19, wherein the adhesive is an aqueous polyurethane; the curing agent is an epoxy resin, and an epoxy value thereof is 0.11 to 0.23.