CN101022935A - 滴灌管 - Google Patents
滴灌管 Download PDFInfo
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- CN101022935A CN101022935A CNA2005800296226A CN200580029622A CN101022935A CN 101022935 A CN101022935 A CN 101022935A CN A2005800296226 A CNA2005800296226 A CN A2005800296226A CN 200580029622 A CN200580029622 A CN 200580029622A CN 101022935 A CN101022935 A CN 101022935A
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G25/00—Watering gardens, fields, sports grounds or the like
- A01G25/02—Watering arrangements located above the soil which make use of perforated pipe-lines or pipe-lines with dispensing fittings, e.g. for drip irrigation
- A01G25/026—Apparatus or processes for fitting the drippers to the hoses or the pipes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/20—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of indefinite length
- B29C44/32—Incorporating or moulding on preformed parts, e.g. linings, inserts or reinforcements
- B29C44/329—Incorporating or moulding on preformed parts, e.g. linings, inserts or reinforcements the preformed parts being partially embedded
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
- B29C44/36—Feeding the material to be shaped
- B29C44/46—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length
- B29C44/50—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length using pressure difference, e.g. by extrusion or by spraying
- B29C44/507—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length using pressure difference, e.g. by extrusion or by spraying extruding the compound through an annular die
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/15—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor incorporating preformed parts or layers, e.g. extrusion moulding around inserts
- B29C48/157—Coating linked inserts, e.g. chains
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
- B29C66/61—Joining from or joining on the inside
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/0012—Combinations of extrusion moulding with other shaping operations combined with shaping by internal pressure generated in the material, e.g. foaming
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
- B29C48/10—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/04—Condition, form or state of moulded material or of the material to be shaped cellular or porous
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2023/00—Tubular articles
- B29L2023/001—Tubular films, sleeves
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2023/00—Tubular articles
- B29L2023/22—Tubes or pipes, i.e. rigid
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/22—Improving land use; Improving water use or availability; Controlling erosion
Abstract
本发明提供了一种滴灌管。该滴灌管(10)包括结合到其上的多个滴灌喷头单元(12),该管(10)由不渗水的材料制成且其内具有泡沫闭孔。该滴灌管(10)可以用在还包括卷筒的管路包装中。与管(10)由未发泡的相同材料制成并具有相同的外径和大约相同的厚度时,具有相同卷筒的相同重量的包装可能具有的相比,在本包装中的管(10)的长度和喷头单元(12)的数量更大。
Description
技术领域
本发明涉及一种滴灌管及其制造方法。
背景技术
在US5,324,371中描述了一种与本发明所涉及类型相似的滴灌管、用于生产滴灌管的设备和加工方法,该文献公开了用于生产滴灌管的方法和设备,该滴灌管具有分立(discrete)的多个滴头(dripper)或喷头(emitter),这些滴头或喷头通过连续挤压方法在轴向间隔开的位置处结合到滴灌管的内侧。
US4,577,998(Dorm)公开了这样的加工方法,即:通过挤压包含增强熔融强度的助剂和化学发泡剂的增塑聚氯乙烯(PVC)组合物来生成柔性的PVC灌溉管。
发明内容
根据本发明,提供了一种新型的滴灌管和可用于生产该管的设备和方法,以及一种新型的管路包装(piping package)。
本发明的滴灌管包括泡沫塑料管主体,该塑料管主体的内部结合有多个灌溉喷头单元。所述泡沫塑料管为闭孔式且由不渗水的材料制成。通常,所述喷头单元分立且在轴向间隔开的位置处结合在所述管的内表面。
术语“灌溉喷头单元”在本说明中使用其最广义的含义,其包括滴头、喷头和任何其它类型的能结合在所述管中的灌溉管装置(irrigationpipe fixture)。
术语“闭孔”当应用于泡沫塑料管时表示泡沫塑料中的至少大部分泡孔是闭合的。
根据本发明的所述管路包装具有重量W,该管路包装包括卷筒和卷绕在该卷筒上的灌溉管,该管具有厚度为t的壁且外径为OD,并且由闭孔式泡沫塑料材料制成并具有以预定的相互间隔结合到所述壁的多个灌溉喷头单元;与该管由未发泡的相同塑料材料制成、在其灌溉喷头单元之间具有相同间距、具有相同的外径OD、具有不超过所述厚度t的厚度并且包装具有相同的重量W的情况相比,所述管中的所述灌溉喷头单元的总数更多,通常至少多10%。
根据本发明,一种用于制造滴灌管的设备,该设备包括:
挤压器,该挤压器用于接收能在发泡加工条件下形成不渗水的闭孔式泡沫管的塑料材料,并挤压所述塑料材料以获得熔融塑料;
挤压十字头(extrusion cross head),该挤压十字头从所述挤压器接收所述熔融塑料,又通过模具挤压该熔融塑料以形成挤压管;
校准单元,该校准单元用于从所述挤压十字头接收挤压管并使所述挤压管的直径缩小,该单元以一中间距离与所述挤压十字头隔开;
过程控制系统,该过程控制系统能控制所述加工条件从而确保在所述熔融塑料中形成所述闭孔,并且进入所述校准单元的所述挤压管因而为具有所述闭孔的泡沫挤压管;
拉出机构,该拉出机构位于所述校准单元的下游,用于拉动所述泡沫挤压管通过所述校准单元并将其从该校准单元拉出;
细长的喷头承载件,该喷头承载件用于支撑多个灌溉喷头单元,使它们沿该承载件的长度连续地移动;
喷头供给机构,该喷头供给机构用于将所述喷头单元连续地供给成与所述承载件成被支撑关系;和
喷头移动装置,该喷头移动装置用于使所述喷头单元沿着所述承载件连续地加速,并在所述泡沫挤压管基本获得其缩小直径时使所述喷头单元与该泡沫挤压管相接触。
根据本发明,一种用于生产滴灌管的方法,该方法包括:
在挤压器设备中挤压结合有闭孔或发泡剂或它们的组合的塑料材料,或者挤压能通过向被挤压的塑料中注射气体而发泡的塑料材料;
将所述塑料材料引入十字头中;
在适于所述塑料材料的加工条件下操作所述挤压器和/或所述十字头,从而形成闭孔式泡沫塑料管;和
在所述管的塑料材料处于半熔融状态时,将多个灌溉喷头单元引到沿着所述管轴向间隔开的位置处。
在将发泡剂添加到所述塑料材料的情况下,所述发泡剂可以在所述塑料材料被供给到所述挤压器之前添加,或者可以在所述塑料材料的挤压过程中添加到所述塑料材料。
根据本发明的一个实施例,所述塑料材料结合有化学发泡剂且工序还包括引入所述发泡剂以在所述管中形成闭孔。所述引入使得提供了合适的加工条件以使所述化学发泡剂起反应。这种发泡剂可以是起反应以形成在所述条件下为气体或变成气体的化合物的发泡剂,或者是将其初始的非气相变为气相的发泡剂。
根据本发明的另一实施例,这样实现所述闭孔的产生,即:在所述塑料材料处于熔融或半熔融状态时,通常在高压下将物理发泡剂(例如,超冷流体、气体)注射到所述塑料材料中。根据本发明的再一实施例,用于形成本发明的滴液接收管的塑料材料包括闭孔(例如,泡沫塑料、包括中空区域(sphere)的塑料材料,等等)。
本发明的滴灌管的优点包括:由于在生产这种管的过程中消耗的树脂量更少,因而该管的重量相对较轻,因此该管容易处理(例如,安装/拆卸)、存储和运输,且可在传统卷筒上以标准重量卷绕更多的这种管。
附图说明
为了理解本发明并了解在实践中如何实施本发明,下面将参照附图仅通过非限制性示例的方式来描述实施例,在附图中:
图1是根据本发明一个实施例的滴灌管的立体图;
图2是用于生产本发明的滴灌管的设备的示意图;
图3是图2的设备的一部分的放大纵剖视图;和
图4是根据本发明另一实施例的管路包装的立体图。
具体实施方式
首先参照附图中的图1,该图示出了泡沫滴灌管10的一部分,该滴灌管包括管主体11和多个灌溉喷头单元12(例如,滴头,喷头等),这些灌溉喷头单元结合在滴灌管的内部并设计成允许灌溉流体从泡沫管10的内部流到外部;因此,每个喷头都包括入口13和出口14。在图1示出的实施例中,泡沫管10包括对应于喷头的出口14的小孔16,但是该出口可以与管10的外表面平齐。
泡沫管10由塑料材料(通常为聚烯烃,但这不是必须的)制成,且在其内还具有闭孔18。管10通常具有环形的壁19(但是,也可以是其它剖面形状),该壁具有内径ID、外径OD和厚度t。
喷头单元12优选在间隔开的轴向位置处结合到泡沫管10的内表面。喷头单元12可以为任何公知的适当几何形状和结构,且示出为非圆柱形细长单元,它们的细长尺寸与泡沫管10的纵向尺寸相对应,如图1所示。
用在本发明的管中的喷头单元可以为任何合适的传统喷头单元,由于其设计并不是本发明的一部分,因此,这里不对其进行更详细地描述。
在图2中示出了用于生产泡沫管10的设备的示意图。该设备包括设置有挤压十字头22的挤压器20,该挤压十字头具有同轴孔24,细长的喷头承载件26延伸穿过该同轴孔。承载件26的上游端26a与喷头堆28对齐,可通过喷头供给单元29从该喷头堆连续地将喷头单元12供给到承载件26的上游端26a上。挤压器20附带有发泡剂供给器30。挤压器20设计成从发泡剂供给器30接收塑料材料和发泡剂(未示出),从而形成塑料混合物54(参见图3)。所述设备还包括用于控制管生产的加工条件的过程控制器31。
可选择的是,通过将已做必要修正的物理发泡剂注射到挤压器20内而引起发泡,且为此挤压器20应附带有发泡剂注射器33(用虚线示出以表示其是可选的)。
校准单元34与冷却单元36一起位于挤压十字头22的下游,并通过中间区域38与该挤压十字头间隔开。承载件26的下游端26b伸入到校准单元34内。校准单元34的下游是冷却单元36,该冷却单元之后有管开孔站40和用于拉出被挤压的泡沫管10的拉出机构42。
喷头移动单元44位于承载件26的上游端26a的上游并设有与承载件26对齐的推杆46。该推杆46例如可以是机械、机电或液压操作的,从而使推杆46根据操作要求以某一速率移动。
图3提供了挤压十字头22、承载件26以及校准单元34和冷却单元36的更多细节。挤压十字头22包括装配有模具52的圆柱形套筒50。熔融的塑料混合物54(包括塑料材料和发泡剂,如上所述)通过模具52被挤压。
校准单元34和冷却单元36包括固定到校准单元34的壁上的开有孔的校准器管55。冷却单元36在真空下填充有冷却水。
细长的承载件26延伸通过挤压十字头22的同轴孔24、中间区域38并进入校准器管55的轴向孔56。细长的承载件26形成有一对细长的管道58,所述管道沿着承载件26的长度延伸并用作经由入口嘴60供给的冷却流体的通道。通常,承载件26与喷头单元12形成对应形状从而支撑所述喷头单元并与之对齐。
在操作中,挤压器20接收塑料材料(未示出)而供给器30向该挤压器供给发泡剂(未示出),从而产生塑料混合物54。
混合物54从挤压器20进入挤压十字头22,从而从该挤压十字头以第一线速度显现(emerge)宽径的挤压熔融管10m。
在由拉出机构42(图2)施加的牵引力作用下,泡沫熔融管10m通过校准器管55的较窄开口,使得该管的直径和壁厚大致缩小到其最终尺寸并处于更高的第二线速度。当熔融管10m以该第二线速度经过校准单元34且随后经过冷却单元36时,该熔融管冷却直到达到具有闭孔18的最终设定状态。
同时,连续的喷头单元12被供给到承载件26的上游端26a上,并通过推杆46而沿着用于引导喷头单元12的承载件26移动,从而在每个连续的喷头单元12的上表面与在校准单元34的入口区域中的熔融管10的间隔开的内表面部位相接触之前,该喷头单元被加速到大致对应于管10m的第二线速度的线速度,并且此时熔融管10m已大致达到其第二线速度。因此,每个喷头单元12在以大致等于熔融管10m的第二线速度的线速度沿着承载件26移动时开始结合到熔融管10m的内表面,直到每个喷头单元12到达承载件26的端部时为止,其被牢固地结合到所述管。
喷头单元12在生成的管10内的间隔由喷头单元12沿着承载件26的相继移动之间的时间间隔来确定。
一旦喷头单元12已被牢固地结合到熔融管10m且在该熔融管已从冷却单元36中显现之后,经过的喷头单元12的位置被感知且开孔站40在对应于喷头单元12的出口14的位置处产生孔16。此时,所述滴灌管为图1所示的泡沫滴灌管10的形式。
根据塑料材料和发泡剂的种类,在挤压器20和十字头22中形成适于在塑料混合物中产生闭孔的加工条件,以使得进入校准单元34的管为泡沫管。
多种塑料材料可以用于产生本发明的泡沫滴灌管10,这些材料优选允许所述管以卷状存储并在安装时展开,所述多种塑料材料包括诸如聚苯乙烯、PVC、聚烯烃(例如,聚乙烯和聚丙烯)和ABS的典型热塑塑料。如所公知的一样,发泡剂的类型是没有限制的,因此那些释放二氧化碳(例如,碳酸盐或重碳酸盐)或氮(例如,偶氮基、肼基和亚硝基的有机化合物)的发泡剂应当是合适的。十字头22通常被加热到在220℃至250℃范围中的温度。通过协调被挤压的熔融管的线速度与引入其内的喷头单元12的频率,可容易地改变喷头单元的轴向间隔;该间隔的通常范围在大约10至100cm之间,且更具体在20至50cm之间。
可以通过与上述不同的工序来生产本发明的泡沫滴灌管10。例如,这样的工序可以包括取用其上结合有灌溉喷头单元12的片状或带状的闭孔泡沫塑料,并将该带的边缘焊接在一起以形成管,如例如在US4,247,051、US6,183,584、US6,464,816和US6,561,443中所公开的。
在图4中,示出了根据本发明的管路包装,该管路包装具有重量W并包括卷筒50和泡沫滴灌管10。为此,管10适于具有合适的柔性(即,可卷起)以卷绕/装载到卷筒50上。该卷筒50可以为传统卷筒,其高度为h,筒径为c,从而限定了可供管卷绕的尺寸为s的承载空间。
参照图1,与具有相同的参数并由非泡沫材料制成的传统灌溉管相比,根据本发明的泡沫塑料灌溉管10可以具有与其相同或仅稍大的壁厚t。但是,与包括传统管路的管路包装相比,包括传统卷筒和预定重量的泡沫塑料滴灌管10的管路包装50可以包括更长的本发明的管10和更多的灌溉喷头单元12。本发明的管的长度和灌溉喷头单元的数量优选增大至少10%。
本领域技术人员应理解,本发明并不限于上述的示例性实施例具体所示。因此,可以通过在本发明范围内做必要修正的多个方面来实施所述滴灌管及其制造方法。
例如,可以不利用发泡剂,而是通过利用已结合有闭孔的塑料原材料或通过在挤压期间将气体(优选为惰性气体)注射到熔融塑料中的工序,来提供泡沫滴灌管10中的闭孔。还应注意,虽然上面给出了化学发泡剂的示例,但是如所公知的一样,不排除使用物理发泡剂,即,在被加热时简单变相而形成气体的发泡剂(例如,诸如碳氟化合物的低沸点液体)。
此外,在所述设备和方法已做必要修正的情况下,管壁19可以由多个层制成,其中这些层中的一个或多个为其内具有闭孔的泡沫层。
Claims (15)
1、一种滴灌管,该管包括结合到其上的多个滴灌喷头单元,并由不渗水的材料制成且其内具有泡沫闭孔。
2、根据权利要求1所述的管,其特征在于,所述喷头单元结合在内部并沿着所述管在轴向间隔开的位置处分隔开。
3、根据权利要求1或2所述的管,其特征在于,所述喷头单元呈在沿着所述管的纵向轴线的方向上为非圆柱形的形状。
4、根据权利要求1、2或3所述的管,其特征在于,所述喷头单元在沿着所述管的纵向轴线的方向上是细长的。
5、根据权利要求1至4中任一项所述的管,其特征在于,该管由泡沫聚烯烃塑料制成。
6、根据权利要求1至5中任一项所述的管,其特征在于,该管可卷绕到传统卷筒上。
7、一种用于制造滴灌管的设备,该设备包括:
挤压器,该挤压器设计成用于接收能在发泡加工条件下形成闭孔式泡沫管的不渗水的塑料材料,并挤压所述塑料材料以获得熔融塑料;
挤压十字头,该挤压十字头从所述挤压器接收所述熔融塑料,又通过模具挤压该熔融塑料以形成挤压管;
校准单元,该校准单元用于从所述挤压十字头接收挤压管并使所述挤压管的直径缩小,该单元以一中间距离与所述挤压十字头隔开;
过程控制系统,该过程控制系统能控制所述加工条件从而确保在所述熔融塑料中形成闭孔,并且进入所述校准单元的所述挤压管因而为具有所述闭孔的泡沫挤压管;
拉出机构,该拉出机构位于所述校准单元的下游,用于拉动所述泡沫挤压管通过所述校准单元并将其从该校准单元拉出;
细长的喷头承载件,该承载件用于支撑多个灌溉喷头单元,使它们沿该承载件的长度连续地移动;
喷头供给机构,该喷头供给机构用于将所述喷头单元连续地供给成与所述承载件成被支撑关系;和
喷头移动装置,该喷头移动装置用于使所述喷头单元沿着所述承载件连续地加速,并在所述泡沫挤压管基本获得其缩小直径时使所述喷头单元与该泡沫挤压管相接触。
8、根据权利要求7所述的设备,其特征在于,该设备还包括所述挤压器附带的发泡剂供给器,该供给器适于将化学发泡剂引入到所述挤压器内,并且所述挤压器适于接收所述化学发泡剂。
9、根据权利要求7所述的设备,其特征在于,该设备还包括所述挤压器附带的发泡剂注射器,该注射器适于将物理发泡剂引入到所述挤压器内,并且所述挤压器适于接收所述物理发泡剂。
10、根据权利要求7、8或9所述的设备,其特征在于,所述塑料材料是结合有闭孔的塑料材料。
11、根据权利要求7至10中任一项所述的设备,其特征在于,所述承载件设置有冷却流体输送件。
12、根据权利要求7至12中任一项所述的设备,其特征在于,该设备还包括开孔站,该开孔站用于在所述管中在与所述喷头单元的出口对齐的位置处产生孔。
13、一种重量为W的灌溉管路包装,该管路包装包括卷筒和卷绕在该卷筒上的滴灌管,该管具有厚度为t的壁且外径为OD,并且由闭孔式泡沫塑料材料制成并具有以预定的相互间隔结合到所述壁的多个灌溉喷头单元;与该管由未发泡的相同塑料材料制成、在其灌溉喷头单元之间具有相同间距、具有相同的外径OD、具有不超过所述厚度t的厚度并且包装具有相同的重量W的情况相比,在所述管中的所述灌溉喷头单元的总数更多。
14、一种泡沫滴灌管,该管具有长度、外径、壁厚和重量,并包括结合到其上的多个滴灌喷头单元,所述管由不渗水的塑料材料制成,其中,与由未发泡的相同塑料材料制成的管相比,所述长度至少长10%,并且所述管的外径和壁厚不超过非泡沫管的外径和壁厚。
15、一种用于制造滴灌管的方法,该方法包括:
在挤压器设备中挤压结合有闭孔或发泡剂或它们的组合的塑料材料,或者挤压能通过向被挤压的塑料中注射气体而发泡的塑料材料;
将所述塑料材料引入十字头中;
在适于所述塑料材料的加工条件下操作所述挤压器和/或所述十字头,从而形成闭孔式泡沫塑料管;和
在所述管的塑料材料处于半熔融状态时,将多个灌溉喷头单元引到沿着所述管轴向间隔开的位置处。
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US10/932,324 US20060043219A1 (en) | 2004-09-02 | 2004-09-02 | Drip irrigation pipe |
US10/932,324 | 2004-09-02 |
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EP (1) | EP1786612A1 (zh) |
CN (1) | CN101022935A (zh) |
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MX (1) | MX2007002473A (zh) |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102416693A (zh) * | 2011-09-07 | 2012-04-18 | 高利强 | 再生料生产内镶贴片式滴灌管的方法及内镶贴片式滴灌管 |
Families Citing this family (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006105364A2 (en) * | 2005-03-31 | 2006-10-05 | Rain Bird Corporation | Drip emitter |
WO2007089839A2 (en) * | 2006-01-30 | 2007-08-09 | The Toro Company | Continuous molded emitter |
US7648085B2 (en) * | 2006-02-22 | 2010-01-19 | Rain Bird Corporation | Drip emitter |
AU2008273732A1 (en) * | 2007-07-09 | 2009-01-15 | Tanhum Feld | Water irrigation system including drip irrigation emitters |
US8628032B2 (en) | 2008-12-31 | 2014-01-14 | Rain Bird Corporation | Low flow irrigation emitter |
US20140090229A1 (en) * | 2011-06-02 | 2014-04-03 | Shlomo Bloom | System and method for high speed feeding of dripper to irrigation pipe in production |
GR20110100503A (el) * | 2011-08-29 | 2013-03-27 | Αριστειδης Εμμανουηλ Δερμιτζακης | Μεθοδος παραγωγης αρδευτικου σωληνα |
GB201119539D0 (en) * | 2011-11-14 | 2011-12-21 | Defendoors Ltd | Method and apparatus for extrusion moulding |
US9877440B2 (en) | 2012-03-26 | 2018-01-30 | Rain Bird Corporation | Elastomeric emitter and methods relating to same |
US9485923B2 (en) | 2012-03-26 | 2016-11-08 | Rain Bird Corporation | Elastomeric emitter and methods relating to same |
US20130248622A1 (en) | 2012-03-26 | 2013-09-26 | Jae Yung Kim | Drip line and emitter and methods relating to same |
US10440903B2 (en) | 2012-03-26 | 2019-10-15 | Rain Bird Corporation | Drip line emitter and methods relating to same |
ITFO20120005A1 (it) * | 2012-04-17 | 2013-10-18 | Valerio Vernocchi | Dispositivo per irrigazione |
US20130341431A1 (en) * | 2012-06-20 | 2013-12-26 | Mark M. Ensworth | Drip Emitter with Outlet Tube |
US9872444B2 (en) | 2013-03-15 | 2018-01-23 | Rain Bird Corporation | Drip emitter |
CN103385154B (zh) * | 2013-06-15 | 2015-03-11 | 蔡福得 | 滴灌管 |
US10285342B2 (en) | 2013-08-12 | 2019-05-14 | Rain Bird Corporation | Elastomeric emitter and methods relating to same |
USD811179S1 (en) | 2013-08-12 | 2018-02-27 | Rain Bird Corporation | Emitter part |
US10631473B2 (en) | 2013-08-12 | 2020-04-28 | Rain Bird Corporation | Elastomeric emitter and methods relating to same |
CN105592690B (zh) * | 2013-10-10 | 2017-11-24 | 梅勒菲尔股份有限公司 | 用于在滴流器位置处钻削灌溉管的设备及方法 |
US9883640B2 (en) | 2013-10-22 | 2018-02-06 | Rain Bird Corporation | Methods and apparatus for transporting elastomeric emitters and/or manufacturing drip lines |
US9561393B2 (en) * | 2014-05-16 | 2017-02-07 | Stephen D. Shoap | Fluid hose apparatus with integrated nozzle and related systems and methods |
US10330559B2 (en) | 2014-09-11 | 2019-06-25 | Rain Bird Corporation | Methods and apparatus for checking emitter bonds in an irrigation drip line |
US10375904B2 (en) | 2016-07-18 | 2019-08-13 | Rain Bird Corporation | Emitter locating system and related methods |
WO2018071883A1 (en) * | 2016-10-14 | 2018-04-19 | Responsive Drip Irrigation, Llc | Hybrid irrigation tubing |
US11051466B2 (en) | 2017-01-27 | 2021-07-06 | Rain Bird Corporation | Pressure compensation members, emitters, drip line and methods relating to same |
US10626998B2 (en) | 2017-05-15 | 2020-04-21 | Rain Bird Corporation | Drip emitter with check valve |
USD883048S1 (en) | 2017-12-12 | 2020-05-05 | Rain Bird Corporation | Emitter part |
US11203023B2 (en) | 2019-12-20 | 2021-12-21 | Stephen D. Shoap | Modular fluid spray nozzles and related systems and methods |
Family Cites Families (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2484965A (en) * | 1946-11-08 | 1949-10-18 | Extruded Plastics Inc | Method of making extruded collapsible tubes |
DE1016009B (de) * | 1954-07-15 | 1957-09-19 | Anton Reifenhaeuser Fa | Verfahren zum Strangpressen von Hohlkoerpern aus thermoplastischem Kunststoff |
US3299192A (en) * | 1963-06-11 | 1967-01-17 | Haveg Industries Inc | Method of extruding a foamed plastic tube having internal and external skins thereon |
FR94389E (fr) * | 1966-09-07 | 1969-08-08 | Ugine Kuhlmann | Procédé et dispositif pour l'extrusion des matieres plastiques expansibles. |
AT325299B (de) * | 1967-02-27 | 1975-10-10 | Hegler Wilhelm | Vorrichtung zur herstellung von rohren aus thermoplastischem kunststoff |
US3839238A (en) * | 1968-04-25 | 1974-10-01 | Ici Ltd | Foamed polyolefins |
JPS5146530B2 (zh) * | 1972-08-31 | 1976-12-09 | ||
US4003408A (en) * | 1974-02-26 | 1977-01-18 | George C. Ballas, trustee | Underground irrigation porous pipe |
US3963403A (en) * | 1974-12-13 | 1976-06-15 | Hughes Processing, Inc. | Apparatus for making foam plastic pipe |
US3981452A (en) * | 1975-02-10 | 1976-09-21 | Gershon Eckstein | Irrigation pipes with dripper units and method of its manufacture |
IL67824A (en) * | 1977-11-24 | 1985-08-30 | Hydro Plan Eng Ltd | Irrigation drip emitter unit |
JPS6054851B2 (ja) | 1979-10-23 | 1985-12-02 | 住友電気工業株式会社 | 発泡体押出装置 |
EP0078108B1 (en) * | 1981-10-22 | 1986-08-27 | Imperial Chemical Industries Plc | Production of pvc irrigation pipe |
DE3370680D1 (en) * | 1982-12-23 | 1987-05-07 | Webco Ind Rubber Ltd | Insulated pipeline |
US4817875A (en) * | 1987-09-21 | 1989-04-04 | David Karmeli | Flexible pipe for trickle irrigation |
US5324371A (en) * | 1988-05-30 | 1994-06-28 | Hydro-Plan Engineering Ltd. | Process for producing a drip irrigation conduit |
IL86549A (en) * | 1988-05-30 | 1991-04-15 | Hydro Plan Eng Ltd | Process and installation for producing a drip irrigation conduit |
IL100126A (en) * | 1991-11-22 | 1994-11-28 | Hydromatic Ltd | Method and apparatus for making drip irrigation devices |
US5511742A (en) * | 1994-11-14 | 1996-04-30 | Phillips Petroleum Company | Apparatus and method for producing a single coil of a double run pipe |
FR2727890B1 (fr) * | 1994-12-07 | 1997-01-24 | Kertscher Sa E | Procede de fabrication de tuyaux d'irrigation goutte-a-goutte |
IL124071A (en) * | 1997-04-18 | 2001-12-23 | Swisscab Sa | Method for manufacturing a drip irrigation tube and dripper unit used therein |
IL121967A (en) * | 1997-10-14 | 2001-06-14 | Hydro Plan Eng Ltd | Irrigation output unit |
IL124704A (en) * | 1998-06-01 | 2002-04-21 | Cohen Amir | Method and apparatus for making dripper lines |
DE69808606T2 (de) * | 1998-07-08 | 2005-11-17 | Swisscab S.A. | Verfahren zur Herstellung eines Tropfbewässerungsschlauches und Produktionslinie zu seiner Durchführung |
IT1305415B1 (it) * | 1998-08-20 | 2001-05-04 | Carmelo Giuffre | Procedimento ed impianto per la fabbricazione di tubi per irrigazionea goccia |
DE19848151C2 (de) * | 1998-10-20 | 2002-09-19 | Battenfeld Gmbh | Verfahren und Vorrichtung zum Spritzgießen von Kunststoff-Formteilen aus thermoplastischem Kunststoff |
US6926507B2 (en) * | 2000-03-07 | 2005-08-09 | Trexel, Inc. | Blowing agent delivery system |
US20030051764A1 (en) * | 2001-09-20 | 2003-03-20 | Jungers Jon W. | Air handling system ductwork component and method of manufacture |
US7144532B2 (en) * | 2002-10-28 | 2006-12-05 | Trexel, Inc. | Blowing agent introduction systems and methods |
-
2004
- 2004-09-02 US US10/932,324 patent/US20060043219A1/en not_active Abandoned
-
2005
- 2005-08-15 CN CNA2005800296226A patent/CN101022935A/zh active Pending
- 2005-08-15 RU RU2007110905/12A patent/RU2366576C2/ru active
- 2005-08-15 EP EP05770043A patent/EP1786612A1/en not_active Ceased
- 2005-08-15 WO PCT/IL2005/000878 patent/WO2006025046A1/en active Application Filing
- 2005-08-15 BR BRPI0514845-6A patent/BRPI0514845A/pt not_active Application Discontinuation
- 2005-08-15 MX MX2007002473A patent/MX2007002473A/es not_active Application Discontinuation
-
2007
- 2007-02-22 ZA ZA200701556A patent/ZA200701556B/xx unknown
- 2007-10-22 US US11/976,119 patent/US20080099584A1/en not_active Abandoned
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102416693A (zh) * | 2011-09-07 | 2012-04-18 | 高利强 | 再生料生产内镶贴片式滴灌管的方法及内镶贴片式滴灌管 |
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US20080099584A1 (en) | 2008-05-01 |
MX2007002473A (es) | 2007-05-11 |
US20060043219A1 (en) | 2006-03-02 |
WO2006025046A1 (en) | 2006-03-09 |
EP1786612A1 (en) | 2007-05-23 |
BRPI0514845A (pt) | 2008-06-24 |
RU2366576C2 (ru) | 2009-09-10 |
ZA200701556B (en) | 2008-08-27 |
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