CN202660939U - Tube type indirect evaporative cooler with heat exchange tubes coated with hydrophilic fiber paper externally - Google Patents
Tube type indirect evaporative cooler with heat exchange tubes coated with hydrophilic fiber paper externally Download PDFInfo
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- CN202660939U CN202660939U CN 201220080921 CN201220080921U CN202660939U CN 202660939 U CN202660939 U CN 202660939U CN 201220080921 CN201220080921 CN 201220080921 CN 201220080921 U CN201220080921 U CN 201220080921U CN 202660939 U CN202660939 U CN 202660939U
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- evaporative cooler
- indirect evaporative
- type indirect
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- tube
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Abstract
The utility model discloses a tube type indirect evaporative cooler with heat exchange tubes coated with hydrophilic fiber paper externally. The tube type indirect evaporative cooler comprises a case of the tube type indirect evaporative cooler. A water spraying disc is arranged in the case, a plurality of parallel heat exchange tubes are arranged under the water spraying disc, and the hydrophilic fiber paper formed by mixing polypropylene fibers processed by modified calcium carbonate with vegetable fibers is coated outside the heat exchange tubes. The lower portion of one side of the tube type indirect evaporative cooler is connected with one end of a water tube, the other end of the water tube is connected with the water spraying disc, and a circulating water pump is arranged on the water tube. By mixing the polypropylene fibers with the vegetable fibers to make paper, the quality of plain paper can improved, the paper wet strength is enhanced, and the abrasion resistance is improved; the polypropylene fibers have the advantages of being corrosion resistant, mildew resistant, good in chemical stability and the like, and can be used for preparing coating materials for the heat exchange tubes of the tube type indirect evaporative cooler on a large scale; and by means of the hydrophilic fiber paper, the hydrophily of heat exchange tube wall surface is improved, and effects of effective cooling, energy conservation and water conservation of the tube type indirect evaporative cooler are achieved.
Description
Technical field
The utility model belongs to caloic switching technology field, relates to a kind of tube type indirect evaporative cooler, is specifically related to a kind of tube type indirect evaporative cooler of heat exchanger tube outer cladding hydrophilic fibre paper.
Background technology
Primary air and auxiliary air are kept apart by heat exchange element in tube type indirect evaporative cooler, form water membrane by meeting behind the Sprayer Circulation water at heat exchanging pipe wall in the auxiliary air side, auxiliary air directly contacts with water and carries out the wet exchange of heat, air equal-enthalpy humidifying, cooling, the temperature of moisture film maintains the wet-bulb temperature of auxiliary air, primary air with the heat transferred auxiliary air, is realized the purpose of lowering the temperature with this by heat exchange element, moisture film.This shows that evaporation of water is the prerequisite of cooling, the study of water film distribution situation on the hydrophilicity of heat exchanger tube and heat exchanger tube surface is the key problem of augmentation of heat transfer.
At present, the material that generally adopts of the heat exchanging pipe wall of tube type indirect evaporative cooler is that metal aluminum foil is made.Because the heat exchanging pipe wall that metal aluminum foil is made is a kind of non-hydrophilic surface, so moisture film can not be evenly distributed on heat exchanging pipe wall in the tube type indirect evaporative cooler running, heat exchanger is under the dry cooling condition at the part tube outer surface and moves, outer moisture film and the auxiliary air of heat exchanger tube can not carry out sufficient caloic exchange in this case, thereby caused having reduced to a certain extent the heat exchange efficiency of tube type indirect evaporative cooler, the energy consumption when having increased operation.For heat and mass transfer enhancement, improve heat exchange efficiency, just need to improve the hydrophily of the heat exchanging pipe wall of tube type indirect evaporative cooler.
As everyone knows, common paper is to be made of the strong string of hydrophily, but because common paper exists a series of shortcomings such as intensity is low, unstable chemcial property can not satisfy the growth requirement of modern society, and polypropylene fibre is good with its good mechanical property, acid-alkali-corrosive-resisting, fatigue bending, the many merits such as cheap, becomes first-selected papermaking new varieties fiber.The mixed papermaking of polyethylene fibre and string can significantly improve the quality of paper, has the advantages such as good corrosion resistance, good chemical stability and long service life.
Summary of the invention
The purpose of this utility model provides a kind of tube type indirect evaporative cooler of heat exchanger tube outer cladding hydrophilic fibre paper, has strengthened the hydrophily on heat exchanger tube surface, has strengthened heat and mass, and the cooling-down effect of tube type indirect evaporative cooler is strengthened.
The technical scheme that the utility model adopts is, a kind of tube type indirect evaporative cooler of heat exchanger tube outer cladding hydrophilic fibre paper, include the cabinet of tube type indirect evaporative cooler, cabinet inside is provided with water spraying tray, the bottom of water spraying tray is provided with the many heat exchanger tubes that are arranged in parallel, heat exchanger tube is coated with the polypropylene fibre of processing through modified calcium carbonate and mixes the hydrophilic fibre paper that consists of with string, the bottom of tube type indirect evaporative cooler cabinet one side is connected with an end of water pipe, the other end of water pipe is connected with water spraying tray, is provided with water circulating pump on the water pipe.
Characteristics of the present utility model also are,
Heat exchanger tube wherein is the smooth pipe of metal aluminum foil material, smooth elliptical tube or smooth flat tube.
The beneficial effects of the utility model are,
Process by tube type indirect evaporative cooler heat exchange wall being coated hydrophilic fibre paper, strengthen the hydrophily on heat exchanger tube surface, heat and mass transfer enhancement strengthens the cooling-down effect of tube type indirect evaporative cooler.
(1) metal aluminum foil heat exchanger tube outer cladding hydrophilic fibre paper, improved the non-water-wet behavior on metal aluminum foil heat exchanger tube surface, realize the hydrophily on tube type indirect evaporative cooler heat exchanger tube surface, so that moisture film is thinner being more evenly distributed of heat exchanging pipe wall, the long-pending water consumption of unit wall surface reduces, thereby saved the power of indirect evaporation cooler water consumption and water circulating pump, realized that tube type indirect evaporative cooler is energy-conservation, the effect of water saving;
(2) adopt polypropylene fibre and mutually mixed papermaking of string, can significantly improve the quality of paper, improve the wet strength of paper, by changing the elastic modelling quantity of paper, make it have certain elasticity, improve anti-wear performance;
(3) polypropylene fibre has that sanitation performance is good, cheap, corrosion-resistant, anti-mildew becomes, chemical stability is good, softening point is lower, the advantages such as the processing characteristics that heat sealability is strong and good and physical and mechanical properties, can be on a large scale for the preparation of the clad material of tube type indirect evaporative cooler heat exchanger tube.
Description of drawings
Fig. 1 is the structural representation of the tube type indirect evaporative cooler of the utility model heat exchanger tube outer cladding hydrophilic fibre paper;
Fig. 2 is the structural representation of the heat exchanger tube of coating hydrophilic fibre paper.
Among the figure, 1. water spraying tray, 2. heat exchanger tube, 3. water circulating pump, 4. hydrophilic fibre paper, 5. water pipe.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the utility model is elaborated.
The structure of the tube type indirect evaporative cooler of the utility model heat exchanger tube outer cladding hydrophilic fibre paper as shown in Figure 1, include the cabinet of tube type indirect evaporative cooler, cabinet inside is provided with water spraying tray 1, the bottom of water spraying tray 1 is provided with the many heat exchanger tubes that are arranged in parallel 2, heat exchanger tube 2 is coated with the polypropylene fibre of processing through modified calcium carbonate and mixes mutually the hydrophilic fibre paper 4 of formation with string, the structure of heat exchanger tube 2 as shown in Figure 2, the bottom of tube type indirect evaporative cooler cabinet one side is connected with an end of water pipe 5, the other end of water pipe 5 is connected with water spraying tray 1, is provided with water circulating pump 3 on the water pipe 5.
Wherein the tubing of heat exchanger tube 2 is for coating the metal aluminum foil material of hydrophilic fibre paper, tubularly can be smooth pipe, smooth elliptical tube or smooth flat tube.
The preparation technology of the hydrophilic fibre paper that the heat exchanger tube outer wall coats is:
A. be first 45～50 μ m with diameter, length is that the polypropylene fibre of 3mm boils 4h with deionized water, oil removing, dry rear for subsequent use;
B. the metal aluminum foil heat exchanger tube is cleaned post-drying, cleaned alternately that eliminating rust deoils and process rear for subsequent use with bronsted lowry acids and bases bronsted lowry liquid to its surface again;
C. precipitated calcium carbonate and deionized water are made into suspension, are heated to 75 ℃, PAA is added in the suspension, strong agitation is filtered behind 90 ℃ of isothermal reaction 1h, with the deionized water washing, dries to constant weight at 110 ℃ again, and it is for subsequent use to obtain modified calcium carbonate;
D. first NaOH is dissolved in the deionized water, then press proportioning with polypropylene fibre, water, dimethylbenzene, acrylic acid, add in the there-necked flask of belt stirrer, logical nitrogen protection, at 50 ℃ of lower swelling 90min, be warming up to rapidly 90 ℃, add modified calcium carbonate and a small amount of initator benzoyl peroxide through step c preparation, stirring reaction 2.5h, again through cooling, suction filtration, washing, 60 ℃ of lower oven dry, obtain the polypropylene fibre after the modification, for subsequent use;
E. with 48g/m
2For quantitatively, the modified polypropylene fiber after steps d is processed and string are mixed by following proportioning: W (modified polypropylene fiber): W (string)=2%: 98%, under the condition that does not add any paper making additive, carry out handsheet;
F. the fibrous paper after step e handles well is prepared into pipe box, is enclosed within outside the metal aluminum foil heat exchanger tube that step b handles well, and heat exchanger tube is made tube type indirect evaporative cooler, the schematic diagram of the tube type indirect evaporative cooler after installing as shown in Figure 1.
It is smooth that polypropylene fibre is processed front surface, and be transparence.Smooth surface after polypropylene fibre is processed is coated by many granules, forms a new contact-making surface with the external world, and this particle is modified calcium carbonate.Because the CO on calcium carbonate surface
3 2-Have sizable ratio to be replaced by the chemisorbed of atmospheric water, hydrolysis makes its surface introduce a large amount of hydroxyls, with the contact angle of water be 10 °, show good hydrophily.Although the calcium carbonate surface portion hydroxyl after the modification and PAA generation bonding, hydrophily weakens, when reacting with polypropylene fibre, because the autohemagglutination of modified calcium carbonate surface PAA has also been introduced carboxyl (COO
-), so still show good hydrophily.Therefore, the polypropylene fibre after the processing owing to the formation of new contact interface, shows preferably hydrophilic ability equally in water.In addition, because the coating function of calcium carbonate, light transmission descends, and on macroscopic view, fiber is white by transparent transition.
Polypropylene fibre and mutually mixed papermaking of string, can improve the quality of paper, improve the wet strength of paper, by changing the elastic modelling quantity of paper, make it have certain elasticity, improve anti-wear performance, and because polypropylene fibre has that sanitation performance is good, cheap and corrosion-resistant, anti-mildew becomes, have the advantage such as chemical stability preferably can be on a large scale for the preparation of the clad material of tube type indirect evaporative cooler heat exchanger tube, and then improve tube type indirect evaporative cooler surface hydrophilic performance, improve efficiency of damp and hot exchanging.
Directly do not contact with auxiliary air at the inner primary air of Air conditioner box, primary air passes through in heat exchanger tube 2, make heat exchanger tube 2 outer formation moisture films by water circulating pump 3 Sprayer Circulation water, the outer moisture film of auxiliary air and heat exchanger tube carries out the wet exchange of heat, the wall of primary air by heat exchanger tube 2, moisture film are realized the purpose of cooling with the heat transferred auxiliary air.The utility model is by coating the processing of hydrophilic fibre paper to tube type indirect evaporative cooler heat exchanger tube metal aluminum foil surface, change the surface heat functional characteristic of heat exchanger tube, realize the hydrophily of heat exchanger tube aluminium foil surface, thereby make heat exchange pipe external surface form uniformly thin moisture film, and then improved the evaporation efficiency of water on heat exchanger tube, realize that tube type indirect evaporative cooler is efficient, energy-conservation, the effect of water saving.
Claims (2)
1. the tube type indirect evaporative cooler of a heat exchanger tube outer cladding hydrophilic fibre paper, it is characterized in that, include the cabinet of tube type indirect evaporative cooler, cabinet inside is provided with water spraying tray (1), the bottom of water spraying tray (1) is provided with the many heat exchanger tubes that are arranged in parallel (2), the bottom of tube type indirect evaporative cooler cabinet one side is connected with an end of water pipe (5), and the other end of water pipe (5) is connected with water spraying tray (1), is provided with water circulating pump (3) on the water pipe (5).
2. the tube type indirect evaporative cooler of heat exchanger tube outer cladding hydrophilic fibre paper according to claim 1, it is characterized in that smooth pipe, smooth elliptical tube or smooth flat tube that described heat exchanger tube (2) is made for the metal aluminum foil material that is coated with hydrophilic fibre paper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220080921 CN202660939U (en) | 2012-03-06 | 2012-03-06 | Tube type indirect evaporative cooler with heat exchange tubes coated with hydrophilic fiber paper externally |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220080921 CN202660939U (en) | 2012-03-06 | 2012-03-06 | Tube type indirect evaporative cooler with heat exchange tubes coated with hydrophilic fiber paper externally |
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| Publication Number | Publication Date |
|---|---|
| CN202660939U true CN202660939U (en) | 2013-01-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220080921 Expired - Fee Related CN202660939U (en) | 2012-03-06 | 2012-03-06 | Tube type indirect evaporative cooler with heat exchange tubes coated with hydrophilic fiber paper externally |
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| CN (1) | CN202660939U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108444311A (en) * | 2018-05-25 | 2018-08-24 | 郑州云海信息技术有限公司 | A kind of container data center cooling unit of evaporation |
| CN109163401A (en) * | 2018-10-16 | 2019-01-08 | 郑州云海信息技术有限公司 | A kind of cooling unit of data center |
| CN113620497A (en) * | 2021-08-27 | 2021-11-09 | 国网陕西省电力公司电力科学研究院 | Transformer substation sewage treatment process |
| CN113683145A (en) * | 2021-08-27 | 2021-11-23 | 国网陕西省电力公司电力科学研究院 | Wastewater falling film evaporation zero discharge system of transformer substation |
| CN114152136A (en) * | 2021-12-13 | 2022-03-08 | 江阴博圣热能科技有限公司 | Stainless steel welded pitted surface pipe and processing technology thereof |
-
2012
- 2012-03-06 CN CN 201220080921 patent/CN202660939U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108444311A (en) * | 2018-05-25 | 2018-08-24 | 郑州云海信息技术有限公司 | A kind of container data center cooling unit of evaporation |
| CN109163401A (en) * | 2018-10-16 | 2019-01-08 | 郑州云海信息技术有限公司 | A kind of cooling unit of data center |
| CN113620497A (en) * | 2021-08-27 | 2021-11-09 | 国网陕西省电力公司电力科学研究院 | Transformer substation sewage treatment process |
| CN113683145A (en) * | 2021-08-27 | 2021-11-23 | 国网陕西省电力公司电力科学研究院 | Wastewater falling film evaporation zero discharge system of transformer substation |
| CN114152136A (en) * | 2021-12-13 | 2022-03-08 | 江阴博圣热能科技有限公司 | Stainless steel welded pitted surface pipe and processing technology thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130109 Termination date: 20140306 |