CN107642922B - Crab-shaped structure dripping and sprinkling dispersion device - Google Patents
Crab-shaped structure dripping and sprinkling dispersion device Download PDFInfo
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- CN107642922B CN107642922B CN201710796969.8A CN201710796969A CN107642922B CN 107642922 B CN107642922 B CN 107642922B CN 201710796969 A CN201710796969 A CN 201710796969A CN 107642922 B CN107642922 B CN 107642922B
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Abstract
The invention provides a crab-shaped structure dripping and sprinkling dispersion device, which comprises a liquid distribution pipe, wherein the pipe wall of the liquid distribution pipe is provided with a sprinkling hole with an upward opening; an upper guide groove is arranged at the upper part of the liquid distribution pipe, the upper guide groove comprises a top plate and two side plates, liquid distribution holes are arranged on the side plates at intervals, the inner walls of the two side plates are respectively and hermetically connected with the pipe walls at the two sides of the liquid distribution pipe, a sealed liquid accumulation cavity is formed between the upper pipe wall of the liquid distribution pipe and the top plate, and the liquid distribution holes are communicated with the liquid accumulation cavity; a flow guide groove is arranged on the side plate which is downward along the liquid distribution hole; the lower part of the liquid distribution pipe is provided with a lower guide structure, the upper end of the body of the lower guide structure is connected with the pipe wall at the bottom of the liquid distribution pipe, and crab-shaped guide fins are arranged on two sides of the body of the lower guide structure. The invention overcomes the problem of easy blockage caused by small open holes of the common dripping holes, and improves the performance and stability of the absorption heat pump and the refrigerating machine products.
Description
Technical Field
The invention relates to a liquid distribution device, in particular to a crab-shaped structure dripping and sprinkling device.
Background
In order to realize sufficient heat exchange between liquids and save the amount of liquid or refrigerant, the traditional liquid distribution device for the lithium bromide absorption heat pump or the refrigerator mostly adopts the liquid dripping or spraying technology to realize uniform liquid distribution. The liquid distribution structure widely adopted at present comprises nozzle spraying, liquid distribution disc dripping and sleeve type spraying liquid distribution.
The disadvantages are that: the liquid distribution effect of the nozzle spray-nozzle is directly related to the flow and pressure factors of fluid, one of the factors is lower, the spray atomization effect is greatly reduced, the nozzle is easy to block in operation, the maintenance and cleaning difficulty is high, and the product performance and the service life are directly influenced. The liquid distribution disc is provided with liquid distribution holes, the reinforcing ribs easily deform the liquid distribution disc in the welding process, the processing precision of the liquid distribution disc is difficult to guarantee, the fluid circulation flow required by the liquid distribution disc is large, otherwise, effective distribution of liquid cannot be guaranteed, and the holes of the liquid pipe and the liquid distribution holes are easily blocked, so that the performance of the product is influenced. The lower part of the outer pipe is provided with a liquid distribution hole, the upper part of the inner pipe is provided with a spray hole, and liquid is sprayed to the inner wall surface of the outer pipe from the spray hole to form a liquid film and distributed through the liquid distribution hole at the bottom of the outer pipe to finish liquid distribution. The metal consumption of the device is large, the dripping and sprinkling liquid is easy to be uneven at the end part of the dripping and sprinkling pipe due to the effect of resistance loss of the on-way pipeline, and one group of sleeve pipes can only meet one row of heat transfer pipes.
Disclosure of Invention
The invention aims to provide a crab-shaped structure dripping and sprinkling dispersion device to solve the problems of easy blockage and uneven liquid distribution of the existing liquid distribution device.
The invention is realized by the following steps: a crab-shaped structure dripping and sprinkling dispersion device comprises a liquid distribution pipe, wherein a spraying hole with an upward opening is formed in the pipe wall of the liquid distribution pipe;
an upper guide groove is arranged at the upper part of the liquid distribution pipe, the upper guide groove comprises a top plate and two side plates, liquid distribution holes are arranged on the side plates at intervals, the inner walls of the two side plates are respectively and hermetically connected with the pipe walls at the two sides of the liquid distribution pipe, a sealed liquid accumulation cavity is formed between the upper pipe wall of the liquid distribution pipe and the top plate, and the liquid distribution holes are communicated with the liquid accumulation cavity; a flow guide groove is formed in the side plate downward along the liquid distribution hole;
the lower part of the liquid distribution pipe is provided with a lower guide structure, the upper end of the body of the lower guide structure is connected with the pipe wall at the bottom of the liquid distribution pipe, and crab-shaped guide fins are arranged on two sides of the body of the lower guide structure.
Preferably, the crab-shaped backflow fin is of a sheet structure which is inclined downwards.
Preferably, the spraying holes and the liquid distribution holes are arranged in a staggered manner in the horizontal direction.
Preferably, the aperture of the spraying hole is smaller than that of the liquid distribution hole.
Preferably, the number of the spraying holes is less than that of the liquid distribution holes.
Preferably, the diversion trench is a concave groove which is arranged on a side plate of the upper guide trench and is concave towards the inner side, and one end of the groove is communicated with the liquid distribution hole.
Preferably, a notch is arranged on a side plate of the upper guide groove, one end of the notch is communicated with the liquid distribution hole, and the notch and the pipe wall of the liquid distribution pipe form the guide groove.
By adopting the technical scheme, the invention provides the crab-shaped structure dripping and sprinkling dispersion device which is simple to process, low in metal consumption, small in processing difficulty due to the fact that the top of the liquid distribution pipe is provided with the hole, the upper guide groove and the lower guide structure are processed by the mould, the processing speed is high, and the metal consumption is less than that of a sleeve pipe; the liquid distribution device is insensitive to the pressure change of the liquid flow due to the existence of the liquid accumulation cavity, liquid is dripped and drenched under the guidance of the crab-shaped guide fins under the action of self gravity, the uneven liquid distribution caused by uneven stress is avoided, and the uniformity of the liquid distribution is further strengthened. The invention overcomes the problem of easy blockage caused by small open holes of the common dripping holes, and improves the performance and stability of the absorption heat pump and the refrigerating machine products. The invention can realize one-time uniform dripping to a plurality of rows of heat transfer pipes.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic structural view of the crab-shaped guide fin of the present invention.
In the figure: the device comprises the following components of a liquid distribution pipe, 2 spray holes, 3 upper guide grooves, 4 liquid distribution holes, 5 liquid accumulation cavities, 6 guide grooves, 7 lower guide structures and 8 crab-shaped guide fins.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, the invention provides a crab-shaped structure dripping and sprinkling dispersion device, which comprises a liquid distribution pipe 1, wherein the upper pipe wall of the liquid distribution pipe is provided with a spraying hole 2 with an upward opening, the upper part of the liquid distribution pipe 1 is provided with an upper guide groove 3, the upper guide groove 3 comprises a top plate and two side plates, liquid distribution holes 4 are arranged on the side plates at intervals, the inner walls of the two side plates are respectively and hermetically connected with the pipe walls at the two sides of the liquid distribution pipe 1, a sealed liquid accumulation cavity 5 is formed between the upper pipe wall of the liquid distribution pipe 1 and the top plate, and the liquid distribution holes 4 are communicated with the liquid accumulation cavity 5; a diversion trench 6 is arranged on the side plate which is downward along the liquid distribution hole 4; the lower part of the liquid distribution pipe 1 is provided with a lower guide structure 7, the upper end of the body of the lower guide structure 7 is connected with the pipe wall at the bottom of the liquid distribution pipe 1, and crab-shaped guide fins 8 are arranged on two sides of the body of the lower guide structure 7. The crab-shaped guide fins 8 are of a sheet-shaped structure which inclines downwards.
As shown in fig. 1 and 2, the fluid is sprayed out from the spray holes 2 at the upper part of the pipe wall of the liquid distribution pipe 1, and the spray holes 2 are opened at the upper part of the pipe wall, so that the fluid flows out in the upward direction, and impurities are remained at the bottom in the liquid distribution pipe 1, thereby effectively preventing the blockage of the spray holes 2. The liquid that flows out from spraying hole 2 receives the separation effect of roof, and fluidic velocity of flow and flow direction change, spray hole 2 and cloth liquid hole 4 and set up in the horizontal direction by mistake, and the aperture that sprays hole 2 is less than cloth liquid hole 4 aperture, and the quantity that sprays hole 2 is less than the quantity of cloth liquid hole 4, and the adjacent liquid that sprays hole 2 and flow out joins in marriage in hydrops cavity 5 and mixes evenly, has eliminated cloth liquid pipe 1 because the pipeline resistance and the hole 2 that sprays that leads to flow out inequality. Liquid after the homogeneous mixing flows out from cloth liquid hole 4 in hydrops cavity 5, flows downwards at cloth liquid pipe 1 outer wall face along guiding gutter 6 to constantly collect at cloth liquid pipe 1 and 7 upper end junctions of leading structure down. The liquid gathered at the joint of the liquid distribution pipe 1 and the upper end of the lower guide structure 7 is uniformly dripped on the heat transfer pipe along the crab-shaped guide fin 8 at the lower end of the lower guide structure 7 under the action of gravity, so that the aim of uniform liquid distribution is fulfilled.
The diversion trench 6 is a concave groove which is arranged on the side plate of the upper guide trench 3 and is inwards concave, and one end of the groove is communicated with the liquid distribution hole 4. A notch is arranged on the side plate of the upper guide groove 3, one end of the notch is communicated with the liquid distribution hole 4, and the notch and the pipe wall of the liquid distribution pipe form a guide groove 6.
Claims (7)
1. A crab-shaped structure dripping and sprinkling dispersion device is characterized by comprising a liquid distribution pipe, wherein the pipe wall of the liquid distribution pipe is provided with a sprinkling hole with an upward opening;
an upper guide groove is arranged at the upper part of the liquid distribution pipe, the upper guide groove comprises a top plate and two side plates, liquid distribution holes are arranged on the side plates at intervals, the inner walls of the two side plates are respectively and hermetically connected with the pipe walls at the two sides of the liquid distribution pipe, a sealed liquid accumulation cavity is formed between the upper pipe wall of the liquid distribution pipe and the top plate, and the liquid distribution holes are communicated with the liquid accumulation cavity; a flow guide groove is formed in the side plate downward along the liquid distribution hole;
the lower part of the liquid distribution pipe is provided with a lower guide structure, the upper end of the body of the lower guide structure is connected with the pipe wall at the bottom of the liquid distribution pipe, and crab-shaped guide fins are arranged on two sides of the body of the lower guide structure.
2. A crab-like structure drip spray dispenser as claimed in claim 1 wherein said crab-like guide fins are of a sheet-like configuration inclined downwardly.
3. A crab-shaped structure dripping and sprinkling device as claimed in claim 1, wherein the sprinkling holes and the liquid distribution holes are staggered in the horizontal direction.
4. A crab-like structure dribbling and sprinkling apparatus as claimed in claim 1, wherein the diameter of said sprinkling holes is smaller than the diameter of said liquid distribution holes.
5. A crab-like structure drip spray dispenser as in claim 1 wherein the number of said spray holes is less than the number of said dispensing holes.
6. The crab-shaped structure dripping and sprinkling device as claimed in claim 1, wherein the diversion trench is an inwardly concave groove provided on a side plate of the upper diversion trench, and one end of the groove is communicated with the liquid distribution hole.
7. The drip spray dispenser with a crab-shaped structure as claimed in claim 1, wherein a notch is provided on the side plate of the upper guide groove, one end of the notch is connected to the liquid distribution hole, and the notch and the wall of the liquid distribution pipe form the diversion trench.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710796969.8A CN107642922B (en) | 2017-09-06 | 2017-09-06 | Crab-shaped structure dripping and sprinkling dispersion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710796969.8A CN107642922B (en) | 2017-09-06 | 2017-09-06 | Crab-shaped structure dripping and sprinkling dispersion device |
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| Publication Number | Publication Date |
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| CN107642922A CN107642922A (en) | 2018-01-30 |
| CN107642922B true CN107642922B (en) | 2020-03-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710796969.8A Active CN107642922B (en) | 2017-09-06 | 2017-09-06 | Crab-shaped structure dripping and sprinkling dispersion device |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101234258A (en) * | 2007-11-06 | 2008-08-06 | 西安交通大学 | Horizontal tube falling-film evaporator with flow guiding device and secondary liquid-dispensing device |
| CN101376066A (en) * | 2008-09-03 | 2009-03-04 | 苏州市中衡压力容器制造有限公司 | Film-distributing device of tube-type down-flow evaporator |
| CN201852512U (en) * | 2010-09-21 | 2011-06-01 | 珠海格力节能环保制冷技术研究中心有限公司 | Liquid distributing device of falling film evaporator |
| CN102410773A (en) * | 2010-09-21 | 2012-04-11 | 珠海格力节能环保制冷技术研究中心有限公司 | Liquid-distributing device for falling-film evaporator |
| CN103028355A (en) * | 2012-12-24 | 2013-04-10 | 天津市创举化工设备有限公司 | Full overflow tank type liquid distributor |
-
2017
- 2017-09-06 CN CN201710796969.8A patent/CN107642922B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101234258A (en) * | 2007-11-06 | 2008-08-06 | 西安交通大学 | Horizontal tube falling-film evaporator with flow guiding device and secondary liquid-dispensing device |
| CN101376066A (en) * | 2008-09-03 | 2009-03-04 | 苏州市中衡压力容器制造有限公司 | Film-distributing device of tube-type down-flow evaporator |
| CN201852512U (en) * | 2010-09-21 | 2011-06-01 | 珠海格力节能环保制冷技术研究中心有限公司 | Liquid distributing device of falling film evaporator |
| CN102410773A (en) * | 2010-09-21 | 2012-04-11 | 珠海格力节能环保制冷技术研究中心有限公司 | Liquid-distributing device for falling-film evaporator |
| CN103028355A (en) * | 2012-12-24 | 2013-04-10 | 天津市创举化工设备有限公司 | Full overflow tank type liquid distributor |
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| Publication number | Publication date |
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| CN107642922A (en) | 2018-01-30 |
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