CN204757468U - Reinforce falling film evaporation absorber of heat exchange tube based on surface package applies woven wire - Google Patents
Reinforce falling film evaporation absorber of heat exchange tube based on surface package applies woven wire Download PDFInfo
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- CN204757468U CN204757468U CN201520444388.4U CN201520444388U CN204757468U CN 204757468 U CN204757468 U CN 204757468U CN 201520444388 U CN201520444388 U CN 201520444388U CN 204757468 U CN204757468 U CN 204757468U
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- casing
- absorber
- knockout
- thermoexcell
- woven wire
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- 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
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- 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
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model discloses a reinforce falling film evaporation absorber of heat exchange tube based on surface package applies woven wire, include absorber box, evaporimeter box and locate a plurality of intensive heat exchange tube tube bank, knockout and solution pond in evaporation / the absorber box, the side of absorber box is equipped with steam inlet, and the top and the bottom of absorber box are equipped with absorbent concentrated solution entry and the export of absorbent weak solution respectively, the top of evaporimeter box is equipped with refrigerant solution entry, each outer wall coat of reinforceing the heat exchange tube tube bank is covered with woven wire, absorbent concentrated solution entry on the absorber box is linked together with the entry of corresponding knockout, and the refrigerant solution entry on the evaporimeter box is linked together with the entry of corresponding knockout, and the knockout bottom evenly is equipped with a plurality of exports, and the export of solution pond bottom is linked together with the absorbent weak solution export of absorber bottom half. The utility model discloses absorb the ability reinforce of heat to simple structure, it is with low costs.
Description
Technical field
The utility model relates to a kind of falling film evaporation/absorber, is specifically related to a kind of falling film evaporation/absorber of the thermoexcell based on ultrafine geothite woven wire.
Background technology
Current China electric power energy is nervous, make to take heat energy as the sorption type refrigerating technology of power than with electric energy be the compression-type refrigeration technology of power advantageously.Absorption Refrigerator is the aggregate of heat exchanger, the raising of its thermal efficiency and the reduction of price are invariably relevant with the performance of heat-transfer pipe, research finds in external absorption refrigeration and source pump, almost all adopt intensify heat transfer pipe, the consumable quantity of copper pipe under identical operating mode is made to be only domestic 35% ~ 55%, not only make the weight of unit and volume significantly reduce, and unit solution filling quantity is reduced, improve startup, behavior in service.Therefore, the research of heat transfer enhancement technology is for improving the properity of absorption type heat pump assembly and having reduced costs very large meaning.In Absorption Refrigerator, adopt the parts of efficient heat conducting tube to be evaporimeter the earliest, in present foreign technology, have employed difform efficient heat conducting tube, as evaporimeter adopts low fin tube; Absorber adopts cannelure pipe; Generator adopts low fin tube or fine antipriming pipe; Solution heat exchanger adopts the seamless steel pipe of small-bore, is provided with rifling or fills out with steel wire in pipe, also has and adopts large ripple small-bore efficient heat conducting tube.But, though some intensify heat transfer pipe has good strengthening effect to heat transfer, for very little or substantially there is no invigoration effect for the invigoration effect of assimilation effect during absorber; Although low rib skewed slot enhanced tube or helicla flute wall enhanced tube can strengthen absorption, but manufacture craft is too complicated, can increase considerably refrigeration unit production cost, therefore the ability of existing absorber to heat absorption is more weak, and complex structure, cost is high.
Utility model content
The purpose of this utility model is the shortcoming overcoming above-mentioned prior art, provide a kind of falling film evaporation/absorber of the thermoexcell based on ultrafine geothite woven wire, this evaporation/absorption device heat and mass ability is strong, is beneficial to falling film evaporation and falling film absorption, and structure is simple, and cost is low.
For achieving the above object, the falling film evaporation/absorber of the thermoexcell based on ultrafine geothite woven wire described in the utility model comprises absorber casing, evaporimeter casing and is located at the some thermoexcell tube banks in described absorber casing and evaporimeter casing;
The side of described absorber casing is provided with steam inlet, the top of evaporimeter casing and the top of absorber casing are respectively equipped with refrigerant solution entrance and absorbent concentrated solution entrance, the bottom of absorber casing is provided with the outlet of absorbent weak solution, and the inside of evaporimeter casing is connected by the inside of described steam inlet with absorber casing;
The first knockout is provided with in described evaporimeter casing, the bottom of the first knockout is provided with some outlets, the refrigerant solution entrance at evaporimeter casing top is connected with the entrance of the first knockout, and each thermoexcell tube bank in evaporimeter casing is positioned at immediately below the first knockout;
The second knockout and solution pool is provided with in absorber casing, the bottom of the second knockout is provided with some outlets, the absorbent concentrated solution entrance at absorber casing top is connected with the entrance of the second knockout, each thermoexcell tube bank in second knockout, absorber casing and solution pool distribute from top to bottom successively, and the outlet of solution pool exports with the absorbent weak solution of absorber bottom half and is connected.
Each thermoexcell tube bank is divided into some layers from top to bottom, and each layer thermoexcell tube bank is uniformly distributed, and each thermoexcell tube bank in the tube bank of adjacent two layers thermoexcell is interspersed.
The string diameter of described woven wire is 0.1-0.5 millimeter, and the order number of woven wire is 5-20 order.
Described first knockout comprises the first casing, and the top of the first casing is provided with the liquid inlet be connected with the refrigerant solution entrance at evaporimeter casing top; Described second knockout comprises the second casing, the top of the second casing is provided with the liquid inlet be connected with the absorbent concentrated solution entrance at absorber casing top, the medial surface of the first casing and the second bottom half all offers netted groove, and the bottom even of described netted groove offers some through holes.
Described second knockout and the first knockout include main pipeline and some separatory pipelines, each separatory pipeline is that formation is uniformly distributed, in first knockout, one end of main pipeline is connected with the refrigerant solution entrance at evaporimeter casing top, in second knockout, one end of main pipeline is connected with the absorbent concentrated solution entrance at absorber casing top, the other end of main pipeline is connected with the entrance of each separatory pipeline, and the outlet of each separatory pipeline is downward.
The mesh of woven wire is quadrilateral structure.
The utility model has following beneficial effect:
Falling film evaporation/the absorber of the thermoexcell based on ultrafine geothite woven wire described in the utility model comprises the tube bank of some thermoexcells, coated on the outer wall of each thermoexcell tube bank have woven wire, and described thermoexcell tube bank has following advantage: 1) dripping can spread well along tubular axis and all both directions of pipe; 2) the not dry place of the outer surface of heat-transfer pipe; 3) heat transfer area outside heat-transfer pipe is larger; 4) liquid can be discharged well from heat-transfer pipe outer surface, and intensified heat exchange tube bundle of the present utility model can improve falling liquid film liquid holdup, hold the liquid time, is conducive to the generation of the nucleus of boiling.In falling film evaporator, the wedge angle existed in the grid of woven wire provides the nucleus of boiling of a large amount of falling film evaporations, liquid enters grid and wherein just to vaporize and without the need to overheated, grid protocol micropore area, the capillary effect of liquid mat constantly supplements gasifying liquid in access aperture, simultaneously these micropores again with the thermal source close contact of heat transfer, thus improve the heat transfer coefficient of thermoexcell tube bank, and then improve the heat transfer efficiency of whole falling film evaporator, realize high efficiency, high performance heat absorption, and cost is low, structure is simple.In addition, steam bubble grows in hole, then departs from, in hole, leave steam bubble core, the breathing of steam bubble, as the effect of pump, can make large quantity of fluid constantly circulate in hole, form eddy current and convection current, enhance disturbance, play the effect promoting horizontal tube bundle surface heat transfer.In falling-film absorber, by means of the surface tension effects of Web materials, add the liquid holdup of heat exchange surface and hold the liquid time, thus increasing heat and mass area, reducing the detention layer thickness of gas-liquid two film, thus reducing resistance to mass tranfer.
Further, the mesh of woven wire is the existence of quadrilateral structure, grid wedge angle, form eddy current and convection current, enhance the disturbance of absorbent solution, also avoid absorbent solution local enrichment while heat and mass transfer enhancement and produce crystallization or fouling, avoiding the cost that scale removal brings.
Further, each thermoexcell tube bank is divided into some layers from top to bottom, each layer thermoexcell tube bank is uniformly distributed, and each thermoexcell tube bank in the tube bank of adjacent two layers thermoexcell is in staggered distribution, the concentrated solution that knockout is exported can be dropped in lower floor's tube bank surface existing under cross-flow impact, avoid directly dropping in solution pool.
Further, described knockout comprises casing, the medial surface of bottom half offers netted groove, and the bottom even of described netted groove offers some through holes, liquid is introduced into after entering casing in netted groove, then the through hole through netted trench bottom flows out, and the solution preventing each through hole of casing from flowing out is uneven.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of thermoexcell tube bank 1 in the utility model;
Fig. 3 is the heat transfer coefficient of thermoexcell tube bank 1 in the utility model and changes thermal change schematic diagram.
Wherein, 1 be thermoexcell tube bank, 2 for woven wire, 3 for absorber casing, 4 be the second knockout, 5 for solution pool, 6 for absorbent weak solution outlet, 7 for absorbent concentrated solution entrance, 8 for steam inlet, 9 for refrigerant solution entrance, 10 be evaporimeter casing, 11 be the first knockout.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail:
With reference to figure 1 and Fig. 2, the falling film evaporation/absorber of the thermoexcell based on ultrafine geothite woven wire described in the utility model comprises absorber casing 3, evaporimeter casing 10 and is located at the some thermoexcell tube banks 1 in described absorber casing 3 and evaporimeter casing 10; The side of described absorber casing 3 is provided with steam inlet 8, the top of evaporimeter casing 10 and the top of absorber casing 3 are respectively equipped with refrigerant solution entrance 9 and absorbent concentrated solution entrance 7, the bottom of absorber casing 3 is provided with absorbent weak solution outlet 6, and the inside of evaporimeter casing 10 is connected with the inside of absorber casing 3 by described steam inlet 8; The first knockout 11 is provided with in described evaporimeter casing 10, the bottom of the first knockout 11 is provided with some outlets, the refrigerant solution entrance 9 at evaporimeter casing 10 top is connected with the entrance of the first knockout 11, and each thermoexcell tube bank 1 in evaporimeter casing 10 is positioned at immediately below the first knockout; The second knockout 4 and solution pool 5 is provided with in absorber casing 3, the bottom of the second knockout 4 is provided with some outlets, the absorbent concentrated solution entrance 7 at absorber casing 3 top is connected with the entrance of the second knockout 4, each thermoexcell tube bank 1 in second knockout 4, absorber casing 3 and solution pool 5 distribute from top to bottom successively, and the outlet of solution pool 5 exports 6 with the absorbent weak solution bottom absorber casing 3 and is connected.
It should be noted that, each thermoexcell tube bank 1 is divided into some layers from top to bottom, and each layer thermoexcell tube bank 1 is uniformly distributed, and each thermoexcell tube bank 1 in adjacent two layers thermoexcell tube bank 1 is interspersed; The string diameter of woven wire 2 is 0.1-0.5 millimeter, and the order number of woven wire 2 is 5-20 order, and the mesh of woven wire 2 is quadrilateral structure.
Described first knockout 11 comprises the first casing, and the top of the first casing is provided with the liquid inlet be connected with the refrigerant solution entrance 9 at evaporimeter casing 10 top; Described second knockout 4 comprises the second casing, the top of the second casing is provided with the liquid inlet be connected with the absorbent concentrated solution entrance 7 at absorber casing 3 top, the medial surface of the first casing and the second bottom half all offers netted groove, and the bottom even of described netted groove offers some through holes.
Described second knockout 4 and the first knockout 11 include main pipeline and some separatory pipelines, each separatory pipeline is that formation is uniformly distributed, in first knockout 11, one end of main pipeline is connected with the refrigerant solution entrance 9 at evaporimeter casing 10 top, in second knockout 4, one end of main pipeline is connected with the absorbent concentrated solution entrance 7 at absorber casing 3 top, the other end of main pipeline is connected with the entrance of each separatory pipeline, and the outlet of each separatory pipeline is downward.
The course of work of the present utility model is:
Refrigerant solution enters in evaporimeter casing 10 through refrigerant inlet 9, thermoexcell tube bank 1 surface in evaporimeter casing 10 is dropped in after knockout 11 evenly separatory, the coated thermoexcell of even action through woven wire 2 restrains 1 outer wall, and in the tube bank of absorption enhancement heat exchanger tube, the heat of medium is vaporizated into refrigerant vapour under the vacuum pressures.Refrigerant vapour enters in absorber casing 3 through steam inlet 8, the concentrated solution entrance 7 of absorbent concentrated solution through absorber casing 3 top enters into knockout 4, and drop onto on the outer wall of thermoexcell tube bank 1 after knockout 4 separatory uniformly, and be divided into some pieces through the grid of woven wire 2, absorbent concentrated solution simultaneously in woven wire 2 grid is due to strong hygroscopicity absorption steam moisture, thus make concentrated solution be converted to weak solution, and dropping in solution pool 5, the absorbent weak solution outlet 6 of the weak solution in solution pool 5 bottom absorber casing 3 is discharged.In absorption process, liberated heat is restrained in the medium in 1 to thermoexcell through the tube wall heat exchange of thermoexcell tube bank 1.
Through test, the coated surface having the thermoexcell of woven wire 2 to restrain 1 forms the very thin liquid film of one deck, and add the liquid holdup of solution, make solution longer in the transverse tube outer time of staying, heat exchange is more abundant, after being wound around woven wire 2, the heat transfer coefficient of the ratio of heat transfer coefficient light pipe of thermoexcell tube bank 1 improves 15%--60%.Described thermoexcell tube bank 1 is easy to process compared with other enhanced tube, and cost is lower, is easy to produce in enormous quantities, and is applicable in evaporimeter and absorber.
Claims (6)
1. falling film evaporation/the absorber of the thermoexcell based on ultrafine geothite woven wire, it is characterized in that, comprise absorber casing (3), evaporimeter casing (10) and be located at some thermoexcells tube bank (1) in described absorber casing (3) and evaporimeter casing (10);
The side of described absorber casing (3) is provided with steam inlet (8), the top of evaporimeter casing (10) and the top of absorber casing (3) are respectively equipped with refrigerant solution entrance (9) and absorbent concentrated solution entrance (7), the bottom of absorber casing (3) is provided with absorbent weak solution outlet (6), and the inside of evaporimeter casing (10) is connected by described steam inlet (8) inside with absorber casing (3);
The first knockout (11) is provided with in described evaporimeter casing (10), the bottom of the first knockout (11) is provided with some outlets, the refrigerant solution entrance (9) at evaporimeter casing (10) top is connected with the entrance of the first knockout (11), and each thermoexcell tube bank (1) in evaporimeter casing (10) is positioned at immediately below the first knockout;
The second knockout (4) and solution pool (5) is provided with in absorber casing (3), the bottom of the second knockout (4) is provided with some outlets, the absorbent concentrated solution entrance (7) at absorber casing (3) top is connected with the entrance of the second knockout (4), each thermoexcell tube bank (1) in second knockout (4), absorber casing (3) and solution pool (5) distribute from top to bottom successively, and the outlet of solution pool (5) exports (6) with the absorbent weak solution of absorber casing (3) bottom and is connected.
2. falling film evaporation/the absorber of the thermoexcell based on ultrafine geothite woven wire according to claim 1, it is characterized in that, each thermoexcell tube bank (1) is divided into some layers from top to bottom, each layer thermoexcell tube bank (1) is uniformly distributed, and each thermoexcell tube bank (1) in adjacent two layers thermoexcell tube bank (1) is interspersed.
3. falling film evaporation/the absorber of the thermoexcell based on ultrafine geothite woven wire according to claim 1, it is characterized in that, the string diameter of described woven wire (2) is 0.1-0.5 millimeter, and the order number of woven wire (2) is 5-20 order.
4. falling film evaporation/the absorber of the thermoexcell based on ultrafine geothite woven wire according to claim 1, it is characterized in that, described first knockout (11) comprises the first casing, and the top of the first casing is provided with the liquid inlet be connected with the refrigerant solution entrance (9) at evaporimeter casing (10) top; Described second knockout (4) comprises the second casing, the top of the second casing is provided with the liquid inlet be connected with the absorbent concentrated solution entrance (7) at absorber casing (3) top, the medial surface of the first casing and the second bottom half all offers netted groove, and the bottom even of described netted groove offers some through holes.
5. falling film evaporation/the absorber of the thermoexcell based on ultrafine geothite woven wire according to claim 1, it is characterized in that, described second knockout (4) and the first knockout (11) include main pipeline and some separatory pipelines, each separatory pipeline is that formation is uniformly distributed, in first knockout (11), one end of main pipeline is connected with the refrigerant solution entrance (9) at evaporimeter casing (10) top, in second knockout (4), one end of main pipeline is connected with the absorbent concentrated solution entrance (7) at absorber casing (3) top, the other end of main pipeline is connected with the entrance of each separatory pipeline, the outlet of each separatory pipeline is downward.
6. falling film evaporation/the absorber of the thermoexcell based on ultrafine geothite woven wire according to claim 3, is characterized in that, the mesh of woven wire (2) is quadrilateral structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520444388.4U CN204757468U (en) | 2015-06-25 | 2015-06-25 | Reinforce falling film evaporation absorber of heat exchange tube based on surface package applies woven wire |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520444388.4U CN204757468U (en) | 2015-06-25 | 2015-06-25 | Reinforce falling film evaporation absorber of heat exchange tube based on surface package applies woven wire |
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| CN204757468U true CN204757468U (en) | 2015-11-11 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105953478A (en) * | 2016-05-23 | 2016-09-21 | 长安大学 | Pipe external falling-film evaporation/absorber with surface coated with hydrophilic material and based on heat exchanging pipes |
| CN109341141A (en) * | 2018-08-27 | 2019-02-15 | 山东大学 | A kind of extratubal falling film heat-pipe-type absorption heat-exchanger rig |
| CN114609850A (en) * | 2022-02-28 | 2022-06-10 | 深圳市中科创投科技有限公司 | Projector |
-
2015
- 2015-06-25 CN CN201520444388.4U patent/CN204757468U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105953478A (en) * | 2016-05-23 | 2016-09-21 | 长安大学 | Pipe external falling-film evaporation/absorber with surface coated with hydrophilic material and based on heat exchanging pipes |
| CN109341141A (en) * | 2018-08-27 | 2019-02-15 | 山东大学 | A kind of extratubal falling film heat-pipe-type absorption heat-exchanger rig |
| CN109341141B (en) * | 2018-08-27 | 2020-03-27 | 山东大学 | Heat pipe type absorption heat exchange device with outer-pipe falling film |
| CN114609850A (en) * | 2022-02-28 | 2022-06-10 | 深圳市中科创投科技有限公司 | Projector |
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