U.S. patent application number 14/378033 was filed with the patent office on 2015-01-01 for moisture and/or heat exchange device.
The applicant listed for this patent is Kai Klingernburg. Invention is credited to Hans Klingenburg, Kai Klingernburg.
Application Number | 20150000863 14/378033 |
Document ID | / |
Family ID | 47720465 |
Filed Date | 2015-01-01 |
United States Patent
Application |
20150000863 |
Kind Code |
A1 |
Klingenburg; Hans ; et
al. |
January 1, 2015 |
MOISTURE AND/OR HEAT EXCHANGE DEVICE
Abstract
A moisture and/or heat exchange device, for example a plate heat
exchanger, a sorption rotor, adsorption dehumidifying rotor or the
like, has moisture or heat exchange surfaces, by means of which
moisture and/or heat can be introduced into a stream of fluid
and/or can be extracted from a stream of fluid and/or can be
exchanged between streams of fluid, and a coating, with which the
moisture or heat exchange surfaces are coated and which contains a
binder and a nano zeolite with a particle size of <1000 nm. In
order to ensure permanent attachment of the applied coating, it is
proposed that the binder is a polyurethane resin.
Inventors: |
Klingenburg; Hans; (Essen,
DE) ; Klingernburg; Kai; (Essen, DE) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
Klingernburg; Kai |
Essen |
|
DE |
|
|
Family ID: |
47720465 |
Appl. No.: |
14/378033 |
Filed: |
January 10, 2013 |
PCT Filed: |
January 10, 2013 |
PCT NO: |
PCT/EP2013/000059 |
371 Date: |
August 11, 2014 |
Current U.S.
Class: |
165/8 |
Current CPC
Class: |
Y02E 60/14 20130101;
F28D 19/042 20130101; F28F 13/185 20130101; F28D 19/00 20130101;
F24F 2203/1036 20130101; F28D 20/0056 20130101; B01J 20/3238
20130101; B82Y 30/00 20130101; B01J 20/2803 20130101; F24F
2203/1032 20130101; F28D 9/00 20130101; B01J 20/28007 20130101;
B01J 20/3223 20130101 |
Class at
Publication: |
165/8 |
International
Class: |
F28D 20/00 20060101
F28D020/00; F28D 19/00 20060101 F28D019/00 |
Foreign Application Data
Date |
Code |
Application Number |
Mar 15, 2012 |
DE |
20 2012 002 693.3 |
Claims
1. a plate-type moisture or heat exchanger, a sorption rotor, or an
adsorption dehumidification rotor, having moisture or heat-exchange
surfaces that can transfer moisture or heat into a fluid flow or
extract moisture or heat from a fluid stream or transfer moisture
or heat between fluid streams, a coating on the moisture or heat
exchange surfaces and that contains polyurethane resin as a binding
agent and nano-zeolite particles with a particle size<1000
nm.
2. The moisture or heat exchanger according to claim 1, wherein the
coating of nano-zeolite particles in polyurethane has a homogeneous
pore size distribution with a pore diameter<1.5 nm.
3. The moisture or heat exchanger according to claim 1, wherein the
particles of nano-zeolite are in nano-crystalline form.
4. The moisture or heat exchanger according to claim 1, wherein the
thickness of the coating is between 0.2 and 100.
5. The moisture or heat exchanger according to claim 1, wherein the
moisture or heat exchange surfaces are made of aluminum, other
suitable metallic or ceramic materials, plastics or paper.
6. The moisture or heat exchanger according to claim 1, wherein the
coating of the nano-zeolite and the polyurethane resin is applied
to an unprimed aluminum surface or one that has not undergone
holding primer-forming measures.
7. The moisture or heat exchanger according to claim 1, wherein the
binding agent is a polyester-based polyurethane resin.
Description
[0001] The invention relates to a moisture and/or heat exchanger,
e.g. a plate heat exchanger, a sorption rotor, an adsorption
dehumidification rotor or similar, having moisture or heat-exchange
surfaces by means of which moisture and/or heat can be introduced
into a fluid flow and/or removed from a fluid flow and/or is
exchangeable between fluid flows, and a coating with which the
moisture or heat exchange surfaces are coated and that contains a
binding agent and a nano-zeolite with a particle size<1000
nm.
[0002] It is known from the state of the art for exchange surfaces
of this kind to be provided with a coating of nano-zeolite, in
order to increase the efficiency of moisture and/or heat exchangers
of this kind and in order to ensure permanently reliable operation
of such devices.
[0003] Problems arose during the operation of moisture and/or heat
exchangers of this kind, insofar as permanent adhesion of the
coating containing the nano-zeolite to the base surfaces could
often not be guaranteed. Moreover, difficulties frequently arose
during the coating process itself.
[0004] Starting from the state of the art described above, the
problem addressed by the invention is that of developing the
generic moisture and/or heat exchanger in such a manner that on the
one hand the process of coating its moisture and heat exchange
surfaces with the coating containing nano-zeolite is made easier
and that on the other hand permanent adhesion of the coating
applied can be guaranteed.
[0005] This problem is solved according to the invention in that
the binding agent by means of which the nano-zeolite is attached to
the base surface is a polyurethane resin.
[0006] During the use of this binding agent, a substantially
simpler application of the coating has resulted compared with the
state of the art, wherein, moreover, the adhesion of the coating
applied to the base surface can be reliably guaranteed for a long
period of time.
[0007] In order to avoid the transfer of odorous substances or
similar, it is advantageous for the nano-zeolite to have a
homogeneous pore size distribution with a pore diameter<1.5 nm,
preferably 0.4 nm and/or 0.3 nm.
[0008] The particles of nano-zeolite may advantageously exist in
nano-crystalline form.
[0009] The thickness of the coating may lie between 0.2 and 100 or
1 and 20 or 10 and 20 .mu.m (10.sup.-6 m), depending on the
requirement profile.
[0010] Aluminum, any other suitable metallic or ceramic material,
plastic or paper are suitable for use as the material for the
embodiment of the moisture or heat exchange surfaces.
[0011] According to an advantageous embodiment of the invention,
the coating of the nano-zeolite and the binding agent is applied to
an unprimed Aluminum surface or one that has not undergone holding
primer-forming measures, in particular to an uncleaned and
unpretreated aluminum surface.
[0012] The binding agent or polyurethane resin is preferably a
polyester-based polyurethane resin.
[0013] The invention is explained in greater detail below with the
help of an embodiment.
[0014] A plate heat exchanger, a sorption rotor, an adsorption
dehumidification rotor or similar has moisture or heat exchange
surfaces that are flat, corrugated or structured in another
suitable manner.
[0015] In the case of the moisture and/or heat exchanger according
to the invention, these surfaces are coated, namely with a coating
that contains a nano-zeolite in addition to a binding agent. This
nano-zeolite has a particle size<1000 nm and a homogeneous pore
size distribution with a pore diameter that is below 1.5 nm,
preferably around 0.4 nm or 0.3 nm. In the case of the moisture
and/or heat exchanging device according to the invention, the
binding agent in the form of a 40% by wt. aqueous dispersion of a
polyester-based polyurethane resin containing the nano-zeolite is
applied to the moisture or heat exchange surfaces and hardened.
[0016] The thickness of the coating is between 0.2 and 100 .mu.m,
e.g. between 10 and 20 .mu.m, depending on the requirement
profile.
[0017] The moisture and heat exchange surfaces may be formed by
aluminum. The coating described above is applied to the aluminum
without the surface of the aluminum undergoing adhesion-forming
measures beforehand. It is even possible for the coating described
above to be applied to an uncleaned and un-pretreated aluminum
surface.
[0018] The coating composed in this manner is suitable for adhering
fixedly in the long term. It is permanently dependable. The cost of
applying it is comparatively low, as the base surface of the
coating does not need to be pretreated or primed.
* * * * *