CN111117127A - Passive dehumidifier and manufacturing method of water absorption sheet - Google Patents
Passive dehumidifier and manufacturing method of water absorption sheet Download PDFInfo
- Publication number
- CN111117127A CN111117127A CN201910852518.0A CN201910852518A CN111117127A CN 111117127 A CN111117127 A CN 111117127A CN 201910852518 A CN201910852518 A CN 201910852518A CN 111117127 A CN111117127 A CN 111117127A
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- Prior art keywords
- water absorption
- heat conduction
- water
- absorption sheet
- hollow heat
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
- F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
- F28F21/081—Heat exchange elements made from metals or metal alloys
- F28F21/085—Heat exchange elements made from metals or metal alloys from copper or copper alloys
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/08—Metals
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
- F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/08—Metals
- C08K2003/0806—Silver
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
- C08K2003/3045—Sulfates
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
Abstract
A passive dehumidifier and a manufacturing method of a water absorption sheet comprise a base, wherein a hollow heat conduction pipe is arranged on the base, a fixing plate is arranged at one end of the hollow heat conduction pipe, the water absorption sheet is arranged between the hollow heat conduction pipes, and a heat exchanger is connected with the base through bolts. Compared with the prior art, the invention has the advantages that: the novel modified water absorbing material is adopted and has the memory characteristic of low-temperature water absorption and high-temperature release, especially, the innovative fixing frame structure is adopted, the water absorbing material particles are placed in the improved polyvinyl alcohol material retainer, and the water absorbing particles are guaranteed to have enough water absorption expansion and water loss shrinkage spaces.
Description
Technical Field
The invention relates to the field of electrical equipment, in particular to a method for manufacturing a passive dehumidifier and a water absorption sheet.
Background
With the high-speed development of wind power industry in China, offshore wind generating sets are more and more installed on the off-shore and on the sea, and due to the fact that the working condition environment on the sea is severe, the problems of salt mist corrosion in an electric control cabinet of the wind generating set, condensation under the closed and semi-closed conditions in the cabinet, high relative humidity and the like can cause serious influence on the wind generating set. The engineering construction period of the offshore wind turbine generator is long, a free space period of a certain time exists after the electrical equipment is installed, and the problem of inner wall condensation in the electrical cabinet caused by temperature and humidity difference frequently occurs in the electrical cabinet at this stage, and the traditional dehumidification mode in the electrical cabinet is to use an irreversible dehumidifier, an external auxiliary electric heating dehumidifier and the like; there is great drawback, and the leading cause lies in using the disposable piece that absorbs water can cause the whole inflation back of piece that absorbs water, and the regulator cubicle piece that absorbs water inflation can't restore when normal operating, causes the piece quality that absorbs water to increase, causes the regulator cubicle internal insulation to reduce easily and leads to the electrified accident of secondary, for example: the water absorption sheet is damaged, and the desiccant is scattered; the external electric auxiliary dehumidifier is restricted by external power supply, and due to the restriction of the installation working condition of the wind generating set, the external electric auxiliary heating system is not in line with the actual working condition of the wind power plant.
Therefore, it is imperative to design a passive dehumidifier and a method for manufacturing the water absorption sheet.
Disclosure of Invention
The technical problem to be solved by the invention is that the engineering construction period of the offshore wind turbine generator is long, and a quota idle period of a certain time can exist after the electrical equipment is installed, so that the problem of inner wall condensation in the electrical cabinet caused by temperature and humidity difference frequently occurs in the electrical cabinet at this stage.
In order to solve the technical problems, the technical scheme provided by the invention is as follows: a passive dehumidifier and a manufacturing method of a water absorption sheet comprise a base, wherein a hollow heat conduction pipe is arranged on the base, a fixing plate is arranged at one end of the hollow heat conduction pipe, the water absorption sheet is arranged between the hollow heat conduction pipes, and a heat exchanger is connected with the base through bolts.
Compared with the prior art, the invention has the advantages that: the novel modified water absorbing material is adopted and has the memory characteristic of low-temperature water absorption and high-temperature release, especially, the innovative fixing frame structure is adopted, the water absorbing material particles are placed in the improved polyvinyl alcohol material retainer, and the water absorbing particles are guaranteed to have enough water absorption expansion and water loss shrinkage spaces.
As an improvement, the main body of the hollow heat conduction pipe is one of copper and metal with excellent heat conduction performance.
As an improvement, the size specification of the passive dehumidifier is 185.5 multiplied by 50 multiplied by 197 mm.
As an improvement, the distance between the hollow heat conducting pipes is 10 mm.
As an improvement, the fixing plate is arranged at the position where the vertical height of the hollow heat conduction pipe from the base is 99.75 mm.
As an improvement, CuSO4 is added into the water absorbing sheet material, and the state indicator of the mixed water absorbing material and the water absorbing sheet is gray when the water absorbing sheet loses water and blue when the water absorbing sheet absorbs water.
As an improvement, silver powder is added into the water absorption sheet material to serve as a heat conduction agent inside the water absorption material, and is used for accelerating the time of PAAS and CuSO4 in the water absorption and water loss processes.
As an improvement, the main materials of the water absorption sheet are PAAS particles, CuSO4 and silver powder, and the three materials are manufactured into a sheet according to a certain proportion and are placed on the hollow heat conduction pipe.
Drawings
FIG. 1 is a schematic diagram of a passive dehumidifier and a method for manufacturing a water absorption sheet.
FIG. 2 is a schematic front view of a method for manufacturing a passive dehumidifier and a water absorption sheet.
FIG. 3 is a side view of a passive dehumidifier and method of making a water absorbent sheet.
As shown in the figure: 1. base, 2, hollow heat pipe, 3, fixed plate, 4, water absorption piece, 5, heat exchanger.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The invention is implemented concretely, the manufacturing method of the passive dehumidifier and the water absorption sheet comprises a base 1, wherein hollow heat conduction pipes 2 are arranged on the base 1, a fixing plate 3 is arranged at one end of each hollow heat conduction pipe 2, the water absorption sheet 4 is arranged between the hollow heat conduction pipes 2, and a heat exchanger 5 is connected with the base 1 through bolts.
The main body of the hollow heat conduction pipe 2 is one of copper material and metal with excellent heat conduction performance.
The size specification of the passive dehumidifier is 185.5 multiplied by 50 multiplied by 197 mm.
The distance between the hollow heat conduction pipes 2 is 10 mm.
The fixing plate 3 is installed at a position where the vertical height of the hollow heat conduction pipe 2 from the base 1 is 99.75 mm.
CuSO4 is added into the water absorption sheet 4 material as a state display of the mixed water absorption material and the water absorption sheet, and the water absorption sheet 4 is grey white when water is lost and blue when water is absorbed.
Silver powder is added into the water absorption sheet 4 material to serve as a heat conduction agent in the water absorption material, and the heat conduction agent is used for accelerating the time of PAAS and CuSO4 in the water absorption and water loss processes.
The main materials of the water absorption sheet 4 are PAAS particles, CuSO4 and silver powder, and the three materials are manufactured into a sheet according to a certain proportion and are arranged on the hollow heat conduction pipe 2.
The working principle of the invention is as follows: the heat exchanger is made of copper materials and metals with excellent heat conducting performance, the heat exchanger and the hollow heat conducting pipe form a temperature conductor, and the heat exchanger plate structure on the heat exchanger is of a grid structure and can also be beneficial to realizing the structure with the maximum surface area, so that the heat exchanger is beneficial to conducting and forming condensation.
The interval between the hollow heat conduction pipes is 10mm and is used for placing the water absorption sheet.
The invention is arranged in a sealed electrical cabinet, and because the metal temperature of the heat exchanger plate of the heat exchanger is lower than the air temperature under the action of temperature difference, the metal walls on the inner surface and the outer surface of the hollow heat conduction pipe are condensed due to the fact that the air temperature is higher than the temperature of the heat exchanger plate of the heat exchanger, so that the water absorption and water loss processes of the water absorption plate 4 are promoted.
Two working conditions can appear when the dehumidifier works: 1. the surface condensation of the surface of the heat exchanger can be caused by the fact that the surface condensation is lower than the ambient temperature and the humidity when the ambient air temperature is lower than the surface temperature of the heat exchanger and the ambient humidity is higher, at the moment, condensation can occur on the surfaces of the heat exchanger and the hollow heat conduction pipes, the water absorption sheets 4 placed among the multi-layer hollow heat conduction pipes can absorb a large amount of water vapor, the water absorption sheets begin to expand, the thickness of the water absorption sheets 4 is increased, and the ambient humidity is reduced; 2. the moisture is released, after the purpose of reducing the humidity of the closed space is achieved through the first working condition, the electrical performance of the closed space can be recovered, when the electrical equipment starts to work, the ambient temperature rises, the heat exchanger absorbs the ambient temperature, when the surface temperature of the heat exchanger is higher than the temperature of the water absorption sheet 4, the purpose of heating the water absorption sheet 4 is achieved through the heat dissipation effect of the hollow heat conduction pipe, as the water absorption sheet 4 comprises CuSO4, the water absorption sheet 4 is blue when water is saturated through water absorption, the moisture in the water absorption sheet 4 gradually volatilizes along with the balance between the temperature of the water absorption sheet 4 and the ambient temperature, the color of the water absorption sheet 4 gradually recovers to be grey-white, the water absorption sheet 4 finishes the process of releasing moisture, and therefore the purpose of being repeatedly used in a passive state is achieved.
The water absorption sheet 4 adopts a combination of multiple materials, the problem of one-way water absorption and inert water loss of single PAAS is solved, CuSO4 is creatively used in the water absorption sheet 4 material as a state display for mixing the water absorption material and the water absorption sheet 4, the water absorption sheet is grey white when losing water and blue when absorbing water, and silver powder is added in the water absorption sheet 4 material to serve as a heat conduction agent in the water absorption material and is used for accelerating the water absorption and water loss processes of PAAS and CuSO 4.
The experimental data show that: in a unit sealed space, the water absorption saturation time of the traditional super water-absorbent resin PAAS is 8.2 hours, the water absorption saturation time of the material using the combined formula as the water absorption sheet 4 is 6.5 hours, and 20% of time is saved, after the equipment starts to operate, the water loss speed of the water absorption sheet 4 is 14.7 hours, and the water absorption sheet reaches a state before water absorption, the traditional PAAS material is released for 26 hours and is completely reduced into particles, and the efficiency of the improved water absorption sheet 4 is improved by 56% compared with the time efficiency.
Experiments show that the silver powder is used as the heat conducting agent and is mixed in the water absorbing material, the water absorption-dehydration efficiency of the water absorbing material can be effectively improved, the temperature of the silver powder material is lower than the ambient temperature in the water absorption process, so that micro surface condensation can be formed inside the water absorbing sheet 4 and is directly absorbed by PAAS and CuSO4, and the color of the CuSO4 is gradually changed during absorption; in the water loss process, the silver powder material accelerates the temperature transmitted by the hollow heat conduction pipe, so that the water absorption sheet 4 starts to be heated from the inside to form an internal heating mode to promote the water loss process of the water absorption sheet 4.
The first embodiment is as follows: a passive dehumidifier and a manufacturing method of a water absorption sheet comprise a heat exchanger, wherein a hollow heat conduction pipe is arranged below the heat exchanger, a hollow heat conduction pipe inner hole is arranged on the hollow heat conduction pipe, a water absorption sheet 4 is arranged on the hollow heat conduction pipe inner hole, the heat exchanger main body is made of copper material and metal with excellent heat conduction performance, the heat exchanger sheet of the heat exchanger adopts a grid structure, the water absorption sheet 4 is used on the hollow heat conduction pipe inner hole through a resin material retainer, the resin material main body is a thick fiber structure sponge grid processed by a special process, CuSO4 is added into the water absorption sheet 4 material and is used as a state display for mixing the water absorption material and the water absorption sheet 4, when the water absorption sheet 4 loses water, the water absorption sheet takes the gray color and the blue color when absorbing water, silver powder is added into the water absorption sheet 4 material and is used as a heat conduction agent in the water absorption material and used for accelerating the time of the water absorption and the CuSO4 processes, the water absorption, CuSO4 and silver powder, which are made into slices according to a certain proportion and are arranged on the inner hole of the hollow heat conducting pipe.
| Composition of | PAAS | CUS04 | |
| 1 | 35 | 40 | 25 |
| 2 | 20 | 40 | 40 |
The proportion of PAAS, CuSO4 and silver powder or other high-quality heat conductor materials is adjusted according to different component proportions so as to adjust products with different models and different water vapor absorption and release times in different wet saturated environments.
Example two: a passive dehumidifier and a manufacturing method of a water absorption sheet comprise a heat exchanger, wherein a hollow heat conduction pipe is arranged below the heat exchanger, a hollow heat conduction pipe inner hole is arranged on the hollow heat conduction pipe, a water absorption sheet 4 is arranged on the hollow heat conduction pipe inner hole, the heat exchanger main body is made of copper material and metal with excellent heat conduction performance, the heat exchanger sheet of the heat exchanger adopts a grid structure, the water absorption sheet 4 is used on the hollow heat conduction pipe inner hole through a resin material retainer, the resin material main body is a thick fiber structure sponge grid processed by a special process, CuSO4 is added into the water absorption sheet 4 material and is used as a state display for mixing the water absorption material and the water absorption sheet 4, when the water absorption sheet 4 loses water, the water absorption sheet takes the gray color and the blue color when absorbing water, silver powder is added into the water absorption sheet 4 material and is used as a heat conduction agent in the water absorption material and used for accelerating the time of the water absorption and the CuSO4 processes, the water absorption, CuSO4 and silver powder, which are made into slices according to a certain proportion and are arranged on the inner hole of the hollow heat conducting pipe.
In a unit sealed space, the water absorption saturation time of the traditional super absorbent resin PAAS is 8.2 hours, the water absorption saturation time of the material using the combined formula as the water absorption sheet 4 is 6.5 hours, and the time is saved by 20 percent; after the equipment starts to operate, the water loss speed of the water absorption sheet 4 reaches a state before water absorption within 14.7 hours, and the traditional PAAS material is released for 26 hours and is completely reduced into particles; the efficiency of the improved absorbent sheet 4 is 56% higher in time efficiency than the comparative term.
Observing the volume of the water absorption sheet 4 in the hollow heat conduction pipe before and after water absorption in the table, the water absorption efficiency of the water absorption sheet 4 is obviously improved after CuSO4 and silver powder are added into the water absorption sheet 4.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature, and in the description of the invention, "plurality" means two or more unless explicitly defined otherwise.
In the present invention, unless otherwise specifically stated or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly above and obliquely above the second feature, or simply meaning that the first feature is at a lesser level than the second feature.
In the description herein, reference to the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made in the above embodiments by those of ordinary skill in the art without departing from the principle and spirit of the present invention.
Claims (8)
1. A manufacturing method of a passive dehumidifier and a water absorption sheet comprises a base (1), and is characterized in that: the heat exchanger is characterized in that the base (1) is provided with the hollow heat conduction pipes (2), one ends of the hollow heat conduction pipes (2) are provided with the fixing plates (3), the water absorption sheets (4) are arranged among the hollow heat conduction pipes (2), and the heat exchanger (5) is connected with the base (1) through bolts.
2. The method of claim 1, wherein the method comprises the steps of: the main body of the hollow heat conduction pipe (2) is one of copper and metal with excellent heat conduction performance.
3. The method of claim 1, wherein the method comprises the steps of: the size specification of the passive dehumidifier is 185.5 multiplied by 50 multiplied by 197 mm.
4. The method of claim 1, wherein the method comprises the steps of: the space between the hollow heat conduction pipes (2) is 10 mm.
5. The method of claim 1, wherein the method comprises the steps of: the fixing plate (3) is arranged at the position where the vertical height of the hollow heat conduction pipe (2) from the base (1) is 99.75 mm.
6. The method of claim 1, wherein the method comprises the steps of: CuSO4 is added into the water absorption sheet (4) material as a state display of the mixed water absorption material and the water absorption sheet, and the water absorption sheet (4) is grey white when dehydrated and blue when absorbing water.
7. The method of claim 1, wherein the method comprises the steps of: silver powder is added into the water absorption sheet (4) material to serve as a heat conduction agent in the water absorption material, and the heat conduction agent is used for accelerating the time of PAAS and CuSO4 in the water absorption and water loss processes.
8. The method of claim 1, wherein the method comprises the steps of: the main materials of the water absorbing sheet (4) are PAAS particles, CuSO4 and silver powder, and the three materials are manufactured into a sheet according to a certain proportion and are arranged on the hollow heat conducting pipe (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910852518.0A CN111117127A (en) | 2019-09-10 | 2019-09-10 | Passive dehumidifier and manufacturing method of water absorption sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910852518.0A CN111117127A (en) | 2019-09-10 | 2019-09-10 | Passive dehumidifier and manufacturing method of water absorption sheet |
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| Publication Number | Publication Date |
|---|---|
| CN111117127A true CN111117127A (en) | 2020-05-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910852518.0A Pending CN111117127A (en) | 2019-09-10 | 2019-09-10 | Passive dehumidifier and manufacturing method of water absorption sheet |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0930901A (en) * | 1995-07-19 | 1997-02-04 | Besutekusu Kk | Antimicrobial water absorbent |
| CN101076697A (en) * | 2005-01-21 | 2007-11-21 | 日本爱克兰工业株式会社 | Sorption-type heat exchange module and process for producing the same |
| CN101779998A (en) * | 2009-12-24 | 2010-07-21 | 卢韫 | Diaper |
| CN109248388A (en) * | 2018-09-09 | 2019-01-22 | 青岛大学 | A kind of wearable air cleaning unit |
| CN109827460A (en) * | 2019-01-24 | 2019-05-31 | 浙江理工大学 | Nano-silver powder adulterates class zeolite molecular sieve compound-dehumidifying heat exchanger and preparation method thereof |
| CN211620393U (en) * | 2019-09-10 | 2020-10-02 | 北京乾源风电科技有限公司 | Passive dehumidifier |
-
2019
- 2019-09-10 CN CN201910852518.0A patent/CN111117127A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0930901A (en) * | 1995-07-19 | 1997-02-04 | Besutekusu Kk | Antimicrobial water absorbent |
| CN101076697A (en) * | 2005-01-21 | 2007-11-21 | 日本爱克兰工业株式会社 | Sorption-type heat exchange module and process for producing the same |
| CN101779998A (en) * | 2009-12-24 | 2010-07-21 | 卢韫 | Diaper |
| CN109248388A (en) * | 2018-09-09 | 2019-01-22 | 青岛大学 | A kind of wearable air cleaning unit |
| CN109827460A (en) * | 2019-01-24 | 2019-05-31 | 浙江理工大学 | Nano-silver powder adulterates class zeolite molecular sieve compound-dehumidifying heat exchanger and preparation method thereof |
| CN211620393U (en) * | 2019-09-10 | 2020-10-02 | 北京乾源风电科技有限公司 | Passive dehumidifier |
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