CN102765188B - 在真空中加载荷制造真空绝热板的真空箱 - Google Patents
在真空中加载荷制造真空绝热板的真空箱 Download PDFInfo
- Publication number
- CN102765188B CN102765188B CN201210280533.0A CN201210280533A CN102765188B CN 102765188 B CN102765188 B CN 102765188B CN 201210280533 A CN201210280533 A CN 201210280533A CN 102765188 B CN102765188 B CN 102765188B
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- Prior art keywords
- vacuum
- casing
- box
- manufacture
- insulating plate
- Prior art date
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 21
- 238000009413 insulation Methods 0.000 title abstract description 23
- 238000005485 electric heating Methods 0.000 claims abstract description 8
- 230000000875 corresponding Effects 0.000 claims abstract description 4
- 238000009423 ventilation Methods 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 4
- 230000023298 conjugation with cellular fusion Effects 0.000 claims description 3
- 230000013011 mating Effects 0.000 claims description 3
- 230000021037 unidirectional conjugation Effects 0.000 claims description 3
- 238000007789 sealing Methods 0.000 abstract description 6
- 239000003570 air Substances 0.000 abstract description 3
- 239000010720 hydraulic oils Substances 0.000 abstract 3
- 238000005086 pumping Methods 0.000 abstract 2
- 239000000463 materials Substances 0.000 description 14
- 239000010410 layers Substances 0.000 description 11
- 239000011888 foils Substances 0.000 description 9
- 239000004698 Polyethylene (PE) Substances 0.000 description 6
- 239000011810 insulating materials Substances 0.000 description 6
- 238000000465 moulding Methods 0.000 description 6
- 239000002245 particles Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000001125 extrusion Methods 0.000 description 3
- 238000005516 engineering processes Methods 0.000 description 2
- 239000007789 gases Substances 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 241001438449 Silo Species 0.000 description 1
- 241000276425 Xiphophorus maculatus Species 0.000 description 1
- 239000002956 ash Substances 0.000 description 1
- 239000003365 glass fibers Substances 0.000 description 1
- 230000001771 impaired Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injections Substances 0.000 description 1
- 238000010076 mixing by material Methods 0.000 description 1
- 239000011368 organic materials Substances 0.000 description 1
- 238000009958 sewing Methods 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicium dioxide Chemical compound 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O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N silicon Chemical compound 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[Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
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- 239000010703 silicon Substances 0.000 description 1
- 229910001885 silicon dioxide Inorganic materials 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000000243 solutions Substances 0.000 description 1
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Abstract
本发明在真空中加载荷制造真空绝热板的真空箱，属于真空绝热板制造技术领域；本发明克服了现有技术存在的不足，提供了一种不易漏气塌落、平整度好、导热系数低、抽真空时间短、制造成本低的真空绝热板的在真空中加载荷制造真空绝热板的真空箱；为了解决上述技术问题，本发明采用的技术方案为：箱体的两端均设置有密封门，多个第二液压油缸均对称设置在箱体顶部的两端，箱体的两侧均设置有多个第一液压油缸，每个第一液压油缸的活塞杆上均固定设置有压力板，支撑板和压力板的对应位置均设置有电热封合带，箱体的顶壁上设置有导轨，夹具活动设置在导轨上，在箱体的顶壁上还设置有抽真空系统；本发明主要用于加工真空绝热板。
Description
在真空中加载荷制造真空绝热板的真空箱
技术领域
[0001] 本发明在真空中加载荷制造真空绝热板的真空箱，属于真空绝热板制造技术领域。
背景技术
[0002]目前市场上所使用的保温材料，大多是有机材料，防火性能差，而真空绝热板所用的材料防火性能好，为A级不燃，并且导热系数低，故真空绝热板是理想的绝热保温材料，有着广阔的市场前景。
[0003] 真空绝热板是一种起绝热作用的保温材料，它的导热系数可以达到0.004W/(m*k)，厚度薄，一般在17_左右，在同样的导热系数条件下，比常规的保温材料厚度更小，应用范围也更加广泛，比如冰箱、冷藏集装箱、医用保温箱、建筑保温节能等领域。真空绝热原理是:在较低的空气压力下，材料的导热系数会变的很小，再通过选择较为理想的芯层绝热材料，便可以达到很好的绝热效果。
[0004] 受技术条件所限，目前的真空绝热板制造设备都是用模具把保温材料颗粒压制成型后装入真空袋中，再进入箱体中进行抽真空处理，但由于保温材料颗粒已被压制成型，这样无形中增加了抽真空的时间，增加了运作成本，同时由于保温成型板在箱体中水平放置，抽真空时真空袋开口处的保温材料颗粒易被抽真空系统吸出，这样，被吸出的保温材料颗粒不但会污染抽真空系统，而且在真空袋的热封合口处也会粘接大量的保温材料颗粒，造成保温袋热封合效果差，并且保温材料成型后高低不平，增加了导热系数，浪费能源。
[0005] 现有制造设备做出来的真空绝热板，在使用过程中，一旦真空袋受损破裂，真空袋中的真空绝热板极易受潮，出现真空绝热板漏气，导热系数大幅增加，甚至出现真空绝热板塌落事故，缩短了真空绝热板的实用寿命。
发明内容
[0006] 本发明在真空中加载荷制造真空绝热板的真空箱，克服了现有技术存在的不足，提供了一种在真空中加载荷制造真空绝热板的真空箱，用该真空箱制成的绝热板不易漏气塌落、平整度好、导热系数低、抽真空时间短、制造成本低。
[0007] 为了解决上述技术问题，本发明采用的技术方案为:在真空中加载荷制造真空绝热板的真空箱，箱体的两端均设置有密封门，密封门的上部通过门轴铰接在箱体的顶部，多个第二液压油缸均对称设置在箱体顶部的两端，每个第二液压油缸的活塞杆均铰接在对应的密封门上，每个密封门与箱体的配合面上均设置有密封件；
[0008] 箱体的两侧均设置有多个第一液压油缸,所述多个第一液压油缸均两两对应且其活塞杆相对设置，每个所述第一液压油缸的活塞杆上均固定设置有压力板，支撑板设置在箱体的内部且位于两个对应所述压力板之间，该支撑板与压力板平行设置并配合形成夹持缝；
[0009] 位于夹持缝的上部在支撑板和压力板的对应位置均设置有电热封合带，箱体的顶壁上设置有导轨，导轨位于夹持缝上方，夹具活动设置在导轨上，在箱体的顶壁上还设置有抽真空系统。
[0010] 所述电热封合带为通电发热体，整体为长条形，横向设置在支撑板和压力板上部的对应位置。
[0011 ] 所述第一液压油缸的数量为四个，或为六个，或为八个。
[0012] 所述第二液压油缸的数量为四个，即每个所述密封门上均铰接有两个第二液压油缸。
[0013] 所述抽真空系统的结构为:抽真空机通过通风管与箱体的内部相通。
[0014] 所述密封件为O型圈。
[0015] 本发明与现有技术相比具有以下有益效果。
[0016] 1、本发明中将抽真空系统设置在真空箱顶壁，使得绝热保温材料在真空中加压成型，并且真空绝热板在加压成型前在真空箱中对其进行抽真空处理，相对现有的真空绝热板在成型后再进行抽真空处理，明显缩短了抽真空时间，节约成本，同时抽真空更为彻底，且成型的绝热真空板平整度好，使导热系数进一步降低。
[0017] 2、本发明在真空箱中将成型前的真空绝热板竖向设置，使成型后的真空绝热板整体平整度好。
附图说明
[0018] 下面结合附图对本发明做进一步的说明。
[0019] 图1为本发明的结构示意图。
[0020] 图2为图1的俯视图。
[0021] 图3为图1的左视图。
[0022] 图中，I为箱体、2为密封门、3为密封件、4为第一液压油缸、5为压力板、6为支撑板、7为夹持缝、8为电热封合带、9为导轨、10为夹具、11为第二液压油缸、12为抽真空系统。
具体实施方式
[0023] 如图1、图2、图3所示，本发明在真空中加载荷制造真空绝热板的真空箱，箱体I的两端均设置有密封门2，密封门2的上部通过门轴铰接在箱体I的顶部，多个第二液压油缸11均对称设置在箱体I顶部的两端，每个第二液压油缸11的活塞杆均铰接在对应的密封门2上，每个密封门2与箱体I的配合面上均设置有密封件3 ；
[0024] 箱体I的两侧均设置有多个第一液压油缸4，所述多个第一液压油缸4均两两对应且其活塞杆相对设置，每个所述第一液压油缸4的活塞杆上均固定设置有压力板5，支撑板6设置在箱体I的内部且位于两个对应所述压力板5之间，该支撑板6与压力板5平行设置并配合形成夹持缝7 ；
[0025] 位于夹持缝7的上部在支撑板6和压力板5的对应位置均设置有电热封合带8，箱体I的顶壁上设置有导轨9，导轨9位于夹持缝7上方，夹具10活动设置在导轨9上，在箱体I的顶壁上还设置有抽真空系统12。
[0026] 所述电热封合带8为通电发热体，整体为长条形，横向设置在支撑板6和压力板5上部的对应位置。
[0027] 所述第一液压油缸4的数量为四个,或为六个,或为八个。
[0028] 所述第二液压油缸11的数量为四个，即每个所述密封门2上均铰接有两个第二液压油缸11。
[0029] 所述抽真空系统12的结构为:抽真空机通过通风管与箱体I的内部相通。
[0030] 所述密封件3为O型圈。
[0031] 本发明中绝热板的隔热原理:二氧化硅含量高的硅灰和类似材料作为真空保护表层内的填充芯材，在真空条件下加压成型再热封而成的一种板材，这样纳米结构的内核封于真空保护表层内。由于它有效地避免空气对流传热，因此导热系数大幅度降低，小于
0.004w/m.k，真空保护表层通常采用PE层铝箔复合膜。
[0032] 本发明的工作过程:纳米保温材料通过气动混合机与玻璃纤维等材料加热混合后送入筒仓中，用螺旋输送机计量、加热、去湿后输送到PE层铝箔复合膜袋中。铝箔复合膜袋通过吊装夹具10在整型机中预压形成400mmX600mmX 15mm的方形板,再通过外面的导轨送入箱体I，在箱体I中用第一液压油缸4带动压力板5给吊装夹具10加压，使铝箔复合膜袋受压，改变纳米保温材料结构，达到降低导热系数的目的，不同的保温材料使用不同的载荷压力，载荷压力的范围为:15kg〜lOOkg/cm2，使纳米结构的内核在PE层铝箔复合膜袋中成为板状形态，在10〜lOOkg/cm2的压强范围内，用电热封合带8使铝箔复合膜袋封口，再将空气注入到箱体I中，将真空绝热板通过导轨9送出箱体1，卸除夹具10后，即成为真空绝热板。
[0033] 本发明中夹具10为现有的弹簧夹，工作时夹在PE层铝箔复合膜袋的过滤层的上部，防止在真空箱I中抽真空时PE层铝箔复合膜袋中的绝热保温材料被吸出，污染PE层铝箔复合膜袋的热封合层，影响热封合的效果。
[0034] 本发明中的抽真空系统12是用现有的抽真空机通过通风管道与箱体I的内部相通，该抽真空系统12在通电时会对箱体I进行抽真空，断电后大气又可顺着通风管道进入到箱体I中。
[0035] 上面结合附图对本发明的实施例作了详细说明，但是本发明并不限于上述实施例，在本领域普通技术人员所具备的知识范围内，还可以在不脱离本发明宗旨的前提下作出各种变化。
Claims (6)
1.在真空中加载荷制造真空绝热板的真空箱，其特征在于，箱体(I)的两端均设置有密封门(2)，密封门(2)的上部通过门轴铰接在箱体(I)的顶部，多个第二液压油缸(11)均对称设置在箱体(I)顶部的两端，每个第二液压油缸(11)的活塞杆均铰接在对应的密封门(2)上，每个密封门(2)与箱体(I)的配合面上均设置有密封件(3)； 箱体(I)的两侧均设置有多个第一液压油缸(4)，所述多个第一液压油缸(4)均两两对应且其活塞杆相对设置，每个所述第一液压油缸(4)的活塞杆上均固定设置有压力板(5)，支撑板(6 )设置在箱体(I)的内部且位于两个对应所述压力板(5 )之间，该支撑板(6 )与压力板(5)平行设置并配合形成夹持缝(7)； 位于夹持缝(7)的上部在支撑板(6)和压力板(5)的对应位置均设置有电热封合带(8)，箱体(I)的顶壁上设置有导轨(9)，导轨(9)位于夹持缝(7)上方，夹具(10)活动设置在导轨(9)上，在箱体(I)的顶壁上还设置有抽真空系统(12)。
2.根据权利要求1所述的在真空中加载荷制造真空绝热板的真空箱，其特征在于，所述电热封合带(8)为通电发热体，整体为长条形，横向设置在支撑板(6)和压力板(5)上部的对应位置。
3.根据权利要求1所述的在真空中加载荷制造真空绝热板的真空箱，其特征在于，所述第一液压油缸(4)的数量为四个,或为六个,或为八个。
4.根据权利要求1所述的在真空中加载荷制造真空绝热板的真空箱，其特征在于，所述第二液压油缸(11)的数量为四个，即每个所述密封门(2)上均铰接有两个第二液压油缸(11)。
5.根据权利要求1所述的在真空中加载荷制造真空绝热板的真空箱，其特征在于，所述抽真空系统(12)的结构为:抽真空机通过通风管与箱体(I)的内部相通。
6.根据权利要求1所述的在真空中加载荷制造真空绝热板的真空箱，其特征在于，所述密封件(3)为O型圈。
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