CN105953478A - Pipe external falling-film evaporation/absorber with surface coated with hydrophilic material and based on heat exchanging pipes - Google Patents
Pipe external falling-film evaporation/absorber with surface coated with hydrophilic material and based on heat exchanging pipes Download PDFInfo
- Publication number
- CN105953478A CN105953478A CN201610348369.0A CN201610348369A CN105953478A CN 105953478 A CN105953478 A CN 105953478A CN 201610348369 A CN201610348369 A CN 201610348369A CN 105953478 A CN105953478 A CN 105953478A
- Authority
- CN
- China
- Prior art keywords
- heat exchanger
- absorbent
- exchanger tube
- absorber
- film evaporation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B39/00—Evaporators; Condensers
- F25B39/02—Evaporators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B37/00—Absorbers; Adsorbers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/27—Relating to heating, ventilation or air conditioning [HVAC] technologies
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/62—Absorption based systems
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention discloses a pipe external falling-film evaporation/absorber with surface coated with hydrophilic material and based on heat exchanging pipes. The pipe external falling-film evaporation/absorber comprises a water baffle and a shell, wherein the shell is divided into an evaporator box and an absorber box by the water baffle; a refrigerant knockout, a refrigerant liquid disc and a plurality of first heat exchanging pipes are arranged in the evaporator box; an absorbent knockout, an absorbent weak solution tank and a plurality of second heat exchanging pipes are arranged in the absorber box. The pipe external falling-film evaporation/absorber has the characteristics of high heat and mass transfer capacity, corrosion resistance and simple structure.
Description
Technical field
The present invention relates to a kind of falling film evaporation/absorber, be specifically related to a kind of based on heat exchanger tube surface
Scribble the extratubal falling film evaporation/absorption device of hydrophilic material.
Background technology
In air conditioner industry, main refrigeration modes have steam compression type refrigeration, absorption refrigeration,
Steam-sprayed refrigeration etc., wherein applying most is exactly steam compression type refrigeration, but this system
Cold mode is that to consume high-quality electric energy be main, and the popularizing of air conditioning applications brings huge to urban distribution network
Big pressure；And this kind of refrigeration modes mainly uses freon refrigeration working medium, currently mainly with hydrogen
Fluorohydrocarbon class HFCs (such as R134a and R152a etc.) and zeotrope cold-producing medium (such as R410A)
It is main.Hydrogen fluorohydrocarbon is poisonous, and can aggravate greenhouse effect.Therefore, with heat energy as driving force, adopt
With the sorption type refrigerating technology of non-Freon working medium, owing to ozone layer without destruction and can be alleviated
Power tense and there is advantage.Absorption Refrigerator is the aggregation of heat exchanger, its thermal efficiency
Improve invariably relevant with the performance of heat-transfer pipe to the reduction of price.Therefore, the grinding of heat transfer enhancement technology
Study carefully the development for absorption refrigeration and application value is great.Now, it is common that use difformity
Efficient heat-exchanging pipe carry out augmentation of heat transfer.As vaporizer uses low fin tube；Absorber uses cannelure pipe,
Also there are the heat-transfer pipes such as employing corrugated tube, netted groove pipe, petal-shaped fin tube.But, some augmentation of heat transfer
Though heat transfer is had by pipe preferably strengthens effect, when absorber, the strengthening for assimilation effect is made
With the least or substantially there is no invigoration effect；And its complex manufacturing technology, cost is high.It addition, it is existing
Using lithium bromide absorbing type refrigeration at great majority, in the running of unit, lithium bromide is exchanged
The corrosion of heat pipe can reduce the heat exchange efficiency of unit, runs the time the longest, affects the biggest.It is typically
By to heat exchanger tube nickel plating anticorrosion.But due to need to be to heat exchanger tube plating nickel on surface, to a certain extent
The heat transfer property of heat exchanger tube can be reduced.
Summary of the invention
It is an object of the invention to the shortcoming overcoming above-mentioned prior art, it is provided that a kind of based on heat exchange
Tube-surface scribbles the extratubal falling film evaporation/absorption device of hydrophilic material, this falling film evaporation/absorption utensil
Have that heat and mass ability is strong, anticorrosion, the feature of simple in construction.
For reaching above-mentioned purpose, of the present invention scribble hydrophilic material based on heat exchanger tube surface
Extratubal falling film evaporation/absorption device includes water fender and housing, and housing is divided into vaporizer by water fender
Casing and absorber casing；
Cold-producing medium liquor separator, refrigerant liquid body disc and some first heat exchanger tubes it is provided with in vaporizer casing,
The top of vaporizer casing is provided with refrigerant liquid entrance, cold-producing medium liquor separator, the first heat exchanger tube and
Refrigerant liquid body disc is sequentially distributed from top to bottom, and refrigerant liquid entrance is positioned at cold-producing medium liquor separator
Surface, refrigerant liquid body disc is provided with liquid outlet, and the bottom of vaporizer casing is provided with described
The non-evaporated refrigerant liquid outlet that liquid outlet is connected；
It is provided with absorbent liquor separator, absorbent weak solution pond and some second in absorber casing to change
Heat pipe, the top of absorber casing is provided with absorbent concentrated solution entrance, absorbent liquor separator, second
Heat exchanger tube and absorbent weak solution pond are sequentially distributed from top to bottom, and absorbent concentrated solution entrance is positioned at suction
Receiving the surface of agent liquor separator, the bottom in absorbent weak solution pond is provided with weak solution outlet, absorber
The bottom of casing is provided with the absorbent weak solution outlet being connected with the outlet of described weak solution；
The surface of the first heat exchanger tube and the second heat exchanger tube is coated with CeO2-TiO2-SiO2 coating.
Adjacent three the first heat exchanger tubes are equilateral triangle distribution.
Adjacent three the second heat exchanger tubes are equilateral triangle distribution.
Through refrigerant liquid outlet flow out unevaporated refrigerant liquid through refrigerant pump pressurize after again
Flow into refrigerant liquid import.
Absorbent weak solution enters absorbent concentrated solution after weak solution outlet is pressurizeed by solution pump
Entrance.
The thickness of CeO2-TiO2-SiO2 coating is 1.2～6.8um.
The method have the advantages that
Extratubal falling film evaporation/the suction scribbling hydrophilic material based on heat exchanger tube surface of the present invention
Receive device and include vaporizer casing and absorber casing, in vaporizer casing, be provided with some first heat exchanger tubes,
Some second heat exchanger tubes it are provided with in absorber casing, wherein, the first heat exchanger tube and the second heat exchanger tube
Surface is coated with CeO2-TiO2-SiO2Coating, CeO2-TiO2-SiO2Coating has good parent
Aqueous and wettability, its contact angle is 10 °～15 °, can make dripping easily along changing
Tube surface uniformly spreads out, and flows down with thin liquid film form, thus increases heat exchange area, increases
Add the liquid holdup of heat exchanger tube and hold the liquid time, reducing the most again the detention layer thickness of gas-liquid two film, subtract
Little resistance to mass tranfer, thus effectively improve the heat and mass efficiency of heat exchanger tube.Simultaneously
There is CeO in CeO2-TiO2-SiO2 coating2, decay resistance is preferable, can effectively reduce
The corrosion of absorbent exchange heat pipe, improves the performance of absorber, extends its service life, vaporizer
Casing is separated by water fender with absorber casing, and the refrigerant vapour in making vaporizer casing leads to
Crossing can be the refrigerant liquid being mixed with in refrigerant vapour while water fender enters absorber casing
Detention continues gasification, to avoid causing the loss of refrigerating capacity, simple in construction in vaporizer casing,
There is the most wide application prospect.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the first heat exchanger tube 31 and sectional view of the second heat exchanger tube 32 in the present invention.
Wherein, 1 it is vaporizer casing, 2 is absorber casing, 31 is the first heat exchanger tube, 32 is
Second heat exchanger tube, 4 be non-evaporated refrigerant liquid outlet, 5 for refrigerant liquid body disc, 6 for absorb
Agent weak solution outlet, 7 be absorbent weak solution pond, 8 for absorbent liquor separator, 9 be absorbent dense
Solution inlet, 10 be water fender, 11 for refrigerant liquid entrance, 12 for cold-producing medium liquor separator,
13 is CeO2-TiO2-SiO2 coating.
Detailed description of the invention
Below in conjunction with the accompanying drawings the present invention is described in further detail:
With reference to Fig. 1 and Fig. 2, the heat exchanger tube scribbling hydrophilic material based on surface of the present invention
Falling film evaporation/absorber include water fender 10 and housing, housing is divided into steaming by water fender 10
Send out device casing 1 and absorber casing 2；Cold-producing medium liquor separator 12, system it is provided with in vaporizer casing 1
Cryogen liquid dish 5 and some first heat exchanger tubes 31, the top of vaporizer casing 1 is provided with refrigerant liquid
Body entrance 11, cold-producing medium liquor separator the 12, first heat exchanger tube 31 and refrigerant liquid body disc 5 to
Under be sequentially distributed, refrigerant liquid entrance 11 is positioned at the surface of cold-producing medium liquor separator 12, refrigeration
Agent liquid dish 5 is provided with liquid outlet, and the bottom of vaporizer casing 1 is provided with and described liquid outlet
The non-evaporated refrigerant liquid outlet 4 being connected；Be provided with in absorber casing 2 absorbent liquor separator 8,
Absorbent weak solution pond 7 and some second heat exchanger tubes 32, the top of absorber casing 2 is provided with suction
Receive agent concentrated solution entrance 9, absorbent liquor separator the 8, second heat exchanger tube 32 and absorbent weak solution pond
7 are sequentially distributed from top to bottom, and absorbent concentrated solution entrance 9 is positioned at just going up of absorbent liquor separator 8
Side, the bottom in absorbent weak solution pond 7 is provided with weak solution outlet, and the bottom of absorber casing 2 sets
There is the absorbent weak solution outlet 6 being connected with the outlet of described weak solution；First heat exchanger tube 31 and
The surface of two heat exchanger tubes 32 is coated with CeO2-TiO2-SiO2 coating 13.
It should be noted that adjacent three the first heat exchanger tubes 31 are distributed in equilateral triangle；Adjacent three
Second heat exchanger tube 32 is distributed in equilateral triangle；Through the unevaporated system that refrigerant liquid outlet 4 flows out
Cryogen liquid flows into refrigerant liquid import 11 after refrigerant pump pressurizes again；Absorbent weak solution warp
Cross after weak solution outlet 6 is pressurizeed by solution pump and enter absorbent concentrated solution entrance 9；
The thickness of CeO2-TiO2-SiO2 coating 13 is 1.2～6.8um.
Ce, Ti, Si itself owing to containing in CeO2-TiO2-SiO2 coating 13 is good
Material, and coating is very thin, and thickness only has 1.2～6.8um, it is demonstrated experimentally that add
The heat exchange efficiency of the heat exchanger tube exchange heat pipe of CeO2-TiO2-SiO2 coating 13 is without impact.Therefore
One heat exchanger tube 31 has high heat transfer efficiency in vaporizer casing 1, it is achieved high efficiency, high performance
Heat absorption.In absorber casing 2, absorbent and cold-producing medium can be made at the second heat exchanger tube 32
The sufficient heat and mass in surface, it is thus achieved that high heat and mass efficiency.
The work process of the present invention is:
Refrigerant liquid is in refrigerant liquid entrance 11 enters cold-producing medium liquor separator 12, then warp
Cold-producing medium liquor separator 12 sprays on the first heat exchanger tube 31, and some refrigerant liquid is by absorbing the
In one heat exchanger tube 31, the heat of chilled water carries out falling film evaporation, does not has the refrigerant liquid of evaporation to enter
Refrigerant liquid body disc 5, then flow out through non-evaporated refrigerant liquid outlet 4, then pass through refrigerant pump
Enter back into after pressurization and vaporizer carries out circulation next time.Absorbent concentrated solution enters through absorbent concentrated solution
Mouth 9 enters in absorbent liquor separators 8, then sprays the second heat exchanger tube 32 through absorbent liquor separator 8
On, absorbent concentrated solution absorbs and enters into absorber case by water fender 10 from vaporizer casing 1
Refrigerant vapour in body 2, carries out heat exchange with the cooling water in the second heat exchanger tube 32 simultaneously, carries out
Falling film absorption, absorbent becomes weak solution from concentrated solution, then flows into absorbent weak solution pond 7, with
By absorbent weak solution outlet 6 discharge, after being pressurizeed the most again, enter circulation next time by solution pump.
Claims (6)
1. an extratubal falling film evaporation/absorption device for hydrophilic material is scribbled based on heat exchanger tube surface, its
Being characterised by, including water fender (10) and housing, housing is divided into evaporation by water fender (10)
Device casing (1) and absorber casing (2)；
Be provided with in vaporizer casing (1) cold-producing medium liquor separator (12), refrigerant liquid body disc (5) and
Some first heat exchanger tubes (31), the top of vaporizer casing (1) is provided with refrigerant liquid entrance (11),
Cold-producing medium liquor separator (12), the first heat exchanger tube (31) and refrigerant liquid body disc (5) depend on from top to bottom
Secondary distribution, refrigerant liquid entrance (11) is positioned at the surface of cold-producing medium liquor separator (12), refrigeration
Agent liquid dish (5) is provided with liquid outlet, and the bottom of vaporizer casing (1) is provided with and described liquid
The non-evaporated refrigerant liquid outlet (4) that outlet is connected；
Absorbent liquor separator (8), absorbent weak solution pond (7) it is provided with in absorber casing (2)
And some second heat exchanger tubes (32), the top of absorber casing (2) is provided with absorbent concentrated solution
Entrance (9), absorbent liquor separator (8), the second heat exchanger tube (32) and absorbent weak solution pond (7)
Being sequentially distributed from top to bottom, absorbent concentrated solution entrance (9) is just being positioned at absorbent liquor separator (8)
Top, the bottom in absorbent weak solution pond (7) is provided with weak solution outlet, absorber casing (2)
Bottom is provided with absorbent weak solution outlet (6) being connected with the outlet of described weak solution；
The surface of the first heat exchanger tube (31) and the second heat exchanger tube (32) is coated with CeO2-TiO2-SiO2
Coating (13).
Drop outside the pipe scribbling hydrophilic material based on heat exchanger tube surface the most according to claim 1
Film evaporation/absorption device, it is characterised in that adjacent three the first heat exchanger tubes (31) are divided in equilateral triangle
Cloth.
Drop outside the pipe scribbling hydrophilic material based on heat exchanger tube surface the most according to claim 1
Film evaporation/absorption device, it is characterised in that adjacent three the second heat exchanger tubes (32) are divided in equilateral triangle
Cloth.
Drop outside the pipe scribbling hydrophilic material based on heat exchanger tube surface the most according to claim 1
Film evaporation/absorption device, it is characterised in that through the unevaporated system that refrigerant liquid outlet (4) flows out
Cryogen liquid flows into refrigerant liquid import (11) after refrigerant pump pressurizes again.
Drop outside the pipe scribbling hydrophilic material based on heat exchanger tube surface the most according to claim 1
Film evaporation/absorption device, it is characterised in that absorbent weak solution is passed through molten through weak solution outlet (6)
Absorbent concentrated solution entrance (9) is entered after liquid pump pressurization.
Drop outside the pipe scribbling hydrophilic material based on heat exchanger tube surface the most according to claim 1
Film evaporation/absorption device, it is characterised in that the thickness of CeO2-TiO2-SiO2 coating (13) be 1.2～
6.8um。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610348369.0A CN105953478A (en) | 2016-05-23 | 2016-05-23 | Pipe external falling-film evaporation/absorber with surface coated with hydrophilic material and based on heat exchanging pipes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610348369.0A CN105953478A (en) | 2016-05-23 | 2016-05-23 | Pipe external falling-film evaporation/absorber with surface coated with hydrophilic material and based on heat exchanging pipes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105953478A true CN105953478A (en) | 2016-09-21 |
Family
ID=56910621
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610348369.0A Pending CN105953478A (en) | 2016-05-23 | 2016-05-23 | Pipe external falling-film evaporation/absorber with surface coated with hydrophilic material and based on heat exchanging pipes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105953478A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112032814A (en) * | 2020-09-11 | 2020-12-04 | 刘学亮 | Spider-web type heating device based on geothermal energy |
| CN114504931A (en) * | 2020-11-16 | 2022-05-17 | 中国石油化工股份有限公司 | Hydrogen sulfide absorption device and absorption method |
| CN114739206A (en) * | 2021-01-08 | 2022-07-12 | 杭州三花研究院有限公司 | Heat exchanger and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09217994A (en) * | 1996-02-09 | 1997-08-19 | Hitachi Ltd | Heat transfer pipe and method for producing the same |
| CN103062961A (en) * | 2011-10-22 | 2013-04-24 | Tcl空调器(中山)有限公司 | Heat-pump water heater titanium evaporator and manufacturing method thereof |
| CN204063674U (en) * | 2014-09-16 | 2014-12-31 | 同方川崎节能设备有限公司 | Lithium bromide absorption refrigerating set |
| CN204757468U (en) * | 2015-06-25 | 2015-11-11 | 长安大学 | Reinforce falling film evaporation absorber of heat exchange tube based on surface package applies woven wire |
-
2016
- 2016-05-23 CN CN201610348369.0A patent/CN105953478A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09217994A (en) * | 1996-02-09 | 1997-08-19 | Hitachi Ltd | Heat transfer pipe and method for producing the same |
| CN103062961A (en) * | 2011-10-22 | 2013-04-24 | Tcl空调器(中山)有限公司 | Heat-pump water heater titanium evaporator and manufacturing method thereof |
| CN204063674U (en) * | 2014-09-16 | 2014-12-31 | 同方川崎节能设备有限公司 | Lithium bromide absorption refrigerating set |
| CN204757468U (en) * | 2015-06-25 | 2015-11-11 | 长安大学 | Reinforce falling film evaporation absorber of heat exchange tube based on surface package applies woven wire |
Non-Patent Citations (1)
| Title |
|---|
| 赵景茂等: "利用溶胶-凝胶法制备铝合金耐蚀亲水性涂膜", 《材料保护》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112032814A (en) * | 2020-09-11 | 2020-12-04 | 刘学亮 | Spider-web type heating device based on geothermal energy |
| CN114504931A (en) * | 2020-11-16 | 2022-05-17 | 中国石油化工股份有限公司 | Hydrogen sulfide absorption device and absorption method |
| CN114504931B (en) * | 2020-11-16 | 2023-06-13 | 中国石油化工股份有限公司 | Hydrogen sulfide absorbing device and absorbing method |
| CN114739206A (en) * | 2021-01-08 | 2022-07-12 | 杭州三花研究院有限公司 | Heat exchanger and preparation method thereof |
| US11807539B2 (en) | 2021-01-08 | 2023-11-07 | Hangzhou Sanhua Research Institute Co., Ltd. | Heat exchanger and manufacturing method thereof |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160921 |
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| RJ01 | Rejection of invention patent application after publication |