公开(公告)号：US20150343833A1

公开(公告)日：2015-12-03

申请号：US14727279

申请日：2015-06-01

申请人： POLYVISION, naamloze vennootschap

发明人： Wout VAN DE BROEK

IPC分类号： B43L1/00 ,  B05D5/02

CPC分类号： B43L1/002 ,  B05D5/02 ,  B43L1/00 ,  G03B21/60

摘要： Projection and communication board, characterised in that it consists of a double-sided enamelled steel plate with an enamel undercoat, on which a second white enamel coat is laid on the writing side, which after annealing presents a roughness of: Ra = 0.6-1.2 μm Rz =3.0-8.0 μm R3z = 3.0-8.0 μm and on which a third thin finishing coat is applied consisting of enamel powder, more than 90% of which consists of grains of less than 15 μm, and which after annealing presents a roughness of: Ra =0.4-1.4 μm Rz =2.0-6.0 μm R3z =2.0-6.0 μm

摘要翻译： 投影和通讯板，其特征在于它包括一个具有搪瓷底涂层的双面漆包钢板，在其上放置第二个白色搪瓷涂层，退火后的粗糙度为：Ra = 0.6-1.2 μmRz =3.0-8.0μmR3z =3.0-8.0μm，其上施加由搪瓷粉末组成的第三薄涂层，其中90％以上由小于15μm的晶粒组成，退火后呈现粗糙度 ：Ra =0.4-1.4μmRz =2.0-6.0μmR3z =2.0-6.0μm

公开(公告)号：US20150330714A1

公开(公告)日：2015-11-19

申请号：US14649107

申请日：2013-12-04

申请人： POLYVISION, NAAMLOZE VENNOOTSCHAP

发明人： Wout VAN DE BROEK

IPC分类号： F28D9/04

CPC分类号： F28D9/04 ,  F28D7/022 ,  F28D9/00 ,  F28D9/0062 ,  F28F19/02

摘要： Spiral or helical counterflow heat exchanger (9, 9′) consisting of two adjoining chambers (10,11), in which a fluid at a high temperature flows in one chamber in one direction, and in which a fluid at a low temperature flows in the opposite direction in the other chamber, characterised in that both chambers are separated by one separating plate (6′) of flat monolithic double-sided enamelled steel annealed at temperatures above 500° C., and whereby the separating plate (6′) is held by its edges in a corrosion-resistant spacer (8,8′) that imposes a fixed distance to two other flat monolithic double-sided enamelled steel plates that each define one chamber at the side that is opposite the separating plate (6′), and which prevents corrosion of the edges of the separating plate and of the two other enamelled steel plates.

摘要翻译： 由两个相邻的室（10,11）组成的螺旋或螺旋逆流热交换器（9,9'），其中高温流体沿一个方向在一个室中流动，并且其中低温流体流入 在另一个室中相反的方向，其特征在于，两个室由在500℃以上的温度下退火的平面整体式双面搪瓷钢的一个分离板（6'）分开，由此分离板（6'） 由其边缘保持在一个耐腐蚀间隔件（8,8'）中，该隔离件（8,8'）与另外两个平面整体式双面漆包钢板施加固定距离，每个平板单面双面漆包钢板在与隔离板（6'）相对的一侧限定一个室， ，并且防止了分离板和两个其它漆包钢板的边缘的腐蚀。