CN106482400B - A kind of distributor in downward film evaporator - Google Patents
A kind of distributor in downward film evaporator Download PDFInfo
- Publication number
- CN106482400B CN106482400B CN201611024831.8A CN201611024831A CN106482400B CN 106482400 B CN106482400 B CN 106482400B CN 201611024831 A CN201611024831 A CN 201611024831A CN 106482400 B CN106482400 B CN 106482400B
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- CN
- China
- Prior art keywords
- gas
- liquid separation
- cover board
- film evaporator
- separation disk
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- 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.)
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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
- F25B39/028—Evaporators having distributing means
-
- 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
- F25B41/00—Fluid-circulation arrangements
Abstract
The present invention relates to the evaporator accessories in refrigeration equipment, in particular to a kind of distributor in downward film evaporator.A kind of distributor in downward film evaporator, tray is dripped including cover board, gas-liquid separation disk and gravity, gravity drop tray bottom is uniformly densely covered with water hole and is equipped with multiple partitions, gravity drop tray top is connected with the gas-liquid separation disk, the bottom plate that the gas-liquid separation is tried to get to the heart of a matter is evenly distributed with pressure port, cover board is fixed on the gas-liquid separation disk, the gas-liquid separation disk and cover board form a closed gas-liquid separation chamber, and the cover board is equipped with inlet and demister.The beneficial effects of the present invention are: the gaseous refrigerant in gas-liquid two-phase cold-producing medium is separated, and avoid droplets from and be entrained away by gaseous refrigerant, realizes that gas is uniformly effectively discharged, while guaranteeing the uniform drippage of liquid, reduce the adverse effect of air-flow in evaporation process.
Description
Technical field
The present invention relates to the evaporator accessories in refrigeration equipment, in particular to a kind of distribution in downward film evaporator
Device.
Background technique
The working principle of downward film evaporator is: the refrigerant liquid condensed out from condenser is dropped by throttling set
Throttling expansion is pressed, the refrigerant of gas-liquid two-phase is formed, under the driving of pressure, gas-liquid two-phase cold-producing medium, which enters, to be arranged in evaporator
It in the distributor of inner top, is distributed by multistage, last refrigerant is reserved by the dispensing orifice for being located at distributor bottommost, is dropped in
On heat exchange pipe of evaporator, refrigerant by gravity effect from top to bottom, drop to successively lower section heat exchanger tube, to make
Cryogen evaporation, heat passes to refrigerant from the medium in heat exchanger tube, to achieve the effect that refrigeration.In above process, shadow
The factor for ringing refrigeration effect most critical is evenly distributing for refrigerant, and the mechanism of distributor determines refrigerant distribution effects
Quality.Since the refrigerant after throttling is in gas-liquid two-phase state, flow regime very disorder, gas cannot be effectively discharged, single
Pure that multistage distributing pore plate distribution is leaned on not can solve the distribution of refrigerant liquid drop still unevenly, fluid spills, drop, which is carried, to be caused to press
Contracting machine returns the problem of liquid.
Therefore have following problem: 1, gas is uniformly effectively discharged, and for the uniform drippage for guaranteeing liquid, prevents gaseous state system
The adverse effect of cryogen.
2, round hole, square hole or opposite side shape hole is generally arranged in conventional common drop tray bottom, since refrigerant has one
Fixed viscosity, simple gravity cannot overcome completely viscous force and smoothly drop to downwards on heat exchanger tube, also cannot
Complete wetting heat exchange pipe external surface is unfavorable for film boiling heat transfer.
3, conventional falling liquid film distributor is generally not provided with the equal vapour plate, the position of close air entry at the top of falling film evaporator,
Air-flow compares concentration, and flow velocity is very fast.Falling liquid film distribute refrigerant during, close to air-breathing nozzle position because gas to
It is upper flowing and flow velocity it is fast, make the refrigerant liquid dripped downwards by biggish climbing power, be carried into air entry, to occur
Liquid phenomenon is returned, the heat transfer efficiency of falling film evaporator device and the stable operation of water cooler are seriously affected.
Summary of the invention
For the deficiency in structure in the prior art, the present invention provides a kind of distributor in downward film evaporator.
The technical scheme to solve the above technical problems is that a kind of distributor in downward film evaporator,
Tray is dripped including cover board, gas-liquid separation disk and gravity, gravity drop tray bottom is uniformly densely covered with water hole and is equipped with more
Block partition, gravity drop tray top are connected with the gas-liquid separation disk, and the bottom plate of the gas-liquid separation disk is evenly distributed with pressure
Power hole, cover board is fixed on the gas-liquid separation disk, and the gas-liquid separation disk and cover board form a closed gas-liquid separation
Chamber, the cover board are equipped with inlet and demister.
The beneficial effects of the present invention are: the gaseous refrigerant in gas-liquid two-phase cold-producing medium is separated, and avoid droplets from by gas
State refrigerant is entrained away, is realized that gas is uniformly effectively discharged, while guaranteeing the uniform drippage of liquid, is reduced gas in evaporation process
The adverse effect of stream.
Based on the above technical solution, the present invention can also be improved as follows.
Further, the gas-liquid separation disk includes bottom plate, the left side plate that is mounted on the bottom plate or so, is mounted on institute
State the front and rear panel before and after bottom plate, the left side plate is the arc upwardly extended from the bottom plate, the bottom plate, left side plate,
Bottom plate in front and the cover board form a closed gas-liquid separation chamber.
The beneficial effects of the present invention are: gas-liquid discharge separation, reduces the adverse effect of gaseous refrigerant.
Further, feed liquor buffer board is provided between the inlet lower end on the cover board and the gas-liquid separation disk.
The beneficial effects of the present invention are: buffering liquid when entering gas-liquid separation disk, liquid is uniformly distributed.
Further, the water hole of gravity drop tray bottom is delthyrium.
Further, the delthyrium of gravity drop tray bottom is arranged with compatible triangle flow deflector therewith.
The beneficial effects of the present invention are: liquid refrigerant can by the effect of flow deflector, overcome viscous force and to flow down
It is dynamic, big drop is formed in the pointed bottom of flow deflector inverted triangle, and be to drop to big drop smoothly by the effect of gravity
On heat exchanger tube, heat exchange pipe external surface is soaked, and then form liquid film, carries out place mat for next step film boiling.
Further, two long side of cover board is equipped with equal vapour plate.
Further, multiple through-holes are provided on the equal vapour plate.
Further, the through-hole is rectangle.
Further, the inlet is equipped with inlet tube.
The beneficial effects of the present invention are: air-flow upward at the top of falling film evaporator can be uniformly distributed along its length,
Air-flow is more stable, is not influenced by air-flow during falling liquid film drips leaching distribution, the heat transfer efficiency of falling film evaporator can be improved,
And effectively prevent the problem of air-breathing returns liquid generation.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is explosive view of the invention；
Fig. 3 is triangle flow deflector schematic diagram.
In the accompanying drawings, list of designations represented by each label is as follows: 1, inlet；1-1, inlet tube；2, equal vapour plate；
2-1, through-hole；3, cover board；4, demister；5, feed liquor buffer board；6, gas-liquid separation disk；6-1, pressure port；7, gravity drips tray；7-
1, water hole；7-2, triangle flow deflector；7-3, partition.
Specific embodiment
The principle and features of the present invention will be described below with reference to the accompanying drawings, and the given examples are served only to explain the present invention, and
It is non-to be used to limit the scope of the invention.
As shown in Fig. 1~2, including cover board 3, gas-liquid separation disk 6 and gravity drip tray 7, and the gravity drips 7, tray bottom
It being uniformly densely covered with water hole 7-1 and is equipped with multiple partitions 7-3, the gravity drop 7 top of tray is connected with the gas-liquid separation disk 6,
The bottom plate of the gas-liquid separation disk 6 is evenly distributed with pressure port 6-1, and cover board 3 is fixed on the gas-liquid separation disk 6, described
Gas-liquid separation disk 6 and cover board 3 form a closed gas-liquid separation chamber, and the cover board 3 is equipped with inlet 1 and demister 4, by
A closed gas-liquid separation chamber is formed with the cover board 3 in the gas-liquid separation disk 6, gas does not leak outside in disengagement chamber, leads to
The demister discharge is crossed, liquid flows into the gravity by pressure port and drips on tray, makes gas-liquid separation.
The gas-liquid separation disk 6 includes bottom plate, is mounted on the bottom plate or so left side plate, before being mounted on the bottom plate
Front and rear panel afterwards, the left side plate are the arc upwardly extended from the bottom plate, the bottom plate, left side plate, bottom plate in front
And the cover board forms a closed gas-liquid separation chamber.
Feed liquor buffer board 5 is provided between 1 lower end of inlet and the gas-liquid separation disk 6 on the cover board 3.
The water hole of the gravity drop 7 bottom of tray is delthyrium.
The delthyrium of the gravity drop 7 bottom of tray is arranged with compatible triangle flow deflector 7-2 therewith.
3 liang of long sides of the cover board are equipped with equal vapour plate 2.
Multiple through-hole 2-1 are provided on the equal vapour plate 2.
The through-hole 2-1 is rectangle.
The inlet 1 is equipped with inlet tube 1-1.
The working principle of the invention is: after gas-liquid two-phase cold-producing medium enters present dispenser by inlet, gas-liquid two-phase system
Cryogen collision feed liquor buffer board simultaneously flows in gas-liquid separation disk along its length, and liquid is by gravity in bottom flow forward
While also to be located at gas-liquid separation disk below drop tray drippage；It flows forward gaseous refrigerant top in gas-liquid separation disk
It is dynamic, it is most reserved upwards through demister afterwards, to realize gas-liquid separation；The liquid refrigerant dripped from gas-liquid separation disk is pooled to down
The gravity drop tray of side simultaneously forms certain liquid level, and under the guide functions of gravity and triangle flow deflector, forms big liquid
It drips and then is dropped on the heat exchanger tube immediately below triangle flow deflector, complete entire refrigerant air-liquid separation, gaseous refrigerant
Agent is reserved from top, the process that liquid refrigerant uniformly drips.Present dispenser makes gas-liquid two-phase cold-producing medium be in discrete state, from
And keeping refrigerant gentle in present dispenser flowing, uniform sequential drippage has been greatly reduced the pressure loss.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (9)
1. a kind of distributor in downward film evaporator, including cover board, gas-liquid separation disk and gravity drip tray, feature
It is, gravity drop tray bottom is uniformly densely covered with water hole and is equipped with multiple partitions, and gravity drop tray top is connected with
The gas-liquid separation disk, the bottom plate of the gas-liquid separation disk are evenly distributed with pressure port, are fixed on the gas-liquid separation disk
Cover board, the gas-liquid separation disk and cover board form a closed gas-liquid separation chamber, and the cover board is equipped with inlet and demisting
Device.
2. the distributor according to claim 1 in downward film evaporator, which is characterized in that the gas-liquid separation disk
Including bottom plate, the left side plate for being mounted on the bottom plate or so, the front and rear panel being mounted on before and after the bottom plate, the left side plate
For the arc upwardly extended from the bottom plate, the bottom plate, left side plate, bottom plate in front and the cover board form a closing
Gas-liquid separation chamber.
3. the distributor according to claim 1 in downward film evaporator, which is characterized in that on the cover board into
Feed liquor buffer board is provided between liquid mouth lower end and the gas-liquid separation disk.
4. the distributor according to claim 1 in downward film evaporator, which is characterized in that the gravity drips tray
The water hole of bottom is delthyrium.
5. the distributor according to claim 4 in downward film evaporator, which is characterized in that the gravity drips tray
The delthyrium of bottom is arranged with compatible triangle flow deflector therewith.
6. the distributor according to claim 1 in downward film evaporator, which is characterized in that two long side of cover board
It is equipped with equal vapour plate.
7. the distributor according to claim 6 in downward film evaporator, which is characterized in that opened on the equal vapour plate
There are multiple through-holes.
8. the distributor according to claim 7 in downward film evaporator, which is characterized in that the through-hole is rectangular
Shape.
9. the distributor according to claim 1 in downward film evaporator, which is characterized in that set on the inlet
There is inlet tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611024831.8A CN106482400B (en) | 2016-11-15 | 2016-11-15 | A kind of distributor in downward film evaporator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611024831.8A CN106482400B (en) | 2016-11-15 | 2016-11-15 | A kind of distributor in downward film evaporator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106482400A CN106482400A (en) | 2017-03-08 |
| CN106482400B true CN106482400B (en) | 2019-04-12 |
Family
ID=58272734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611024831.8A Active CN106482400B (en) | 2016-11-15 | 2016-11-15 | A kind of distributor in downward film evaporator |
Country Status (1)
| Country | Link |
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| CN (1) | CN106482400B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111919075A (en) | 2018-04-06 | 2020-11-10 | 开利公司 | Integrated separator and distributor |
| CN108562070A (en) * | 2018-05-29 | 2018-09-21 | 冰轮环境技术股份有限公司 | Flooded evaporator gas averaging board |
| CN109458760A (en) * | 2018-12-16 | 2019-03-12 | 江苏世林博尔制冷设备有限公司 | A kind of downward film evaporator refrigerant distributor |
| WO2020167426A1 (en) | 2019-02-13 | 2020-08-20 | Corning Incorporated | Vaporizers and apparatuses for forming glass optical fiber preforms comprising the same |
| CN112413940A (en) * | 2019-08-22 | 2021-02-26 | 麦克维尔空调制冷(武汉)有限公司 | Refrigerant distributor and evaporator comprising same |
| KR102292397B1 (en) * | 2020-02-13 | 2021-08-20 | 엘지전자 주식회사 | Evaporator |
| KR102292396B1 (en) * | 2020-02-13 | 2021-08-20 | 엘지전자 주식회사 | Evaporator |
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| DE102011112200A1 (en) * | 2011-08-30 | 2013-02-28 | Donald Herbst | Air-water heat exchanger of air-conditioning system, has a capillary tube having hydrophilic or water-spreading surface or active layer contacting with hygroscopic material of distributor for uniform distribution of fluid into manifold |
| CN103062962A (en) * | 2012-12-27 | 2013-04-24 | 麦克维尔空调制冷(武汉)有限公司 | Gas-liquid separative falling film type evaporator |
| CN103851839A (en) * | 2012-12-03 | 2014-06-11 | 麦克维尔空调制冷(武汉)有限公司 | Distributor applied to falling film type evaporator |
| CN103900299A (en) * | 2012-12-27 | 2014-07-02 | 麦克维尔空调制冷(武汉)有限公司 | Simple distributor used in falling-film evaporator |
| CN203908118U (en) * | 2014-04-24 | 2014-10-29 | 珠海格力电器股份有限公司 | Uniform distribution device and falling-film evaporator, as well as water chilling unit |
| CN205316761U (en) * | 2016-01-19 | 2016-06-15 | 诸暨市双姣制冷配件有限公司 | Refrigerant diverging device |
| CN205403254U (en) * | 2016-02-18 | 2016-07-27 | 约克（无锡）空调冷冻设备有限公司 | Falling film evaporation ware suitable for pressure refrigerant |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8561675B2 (en) * | 2005-12-29 | 2013-10-22 | Industrial Technology Research Institute | Spray type heat-exchanging unit |
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- 2016-11-15 CN CN201611024831.8A patent/CN106482400B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102011112200A1 (en) * | 2011-08-30 | 2013-02-28 | Donald Herbst | Air-water heat exchanger of air-conditioning system, has a capillary tube having hydrophilic or water-spreading surface or active layer contacting with hygroscopic material of distributor for uniform distribution of fluid into manifold |
| CN103851839A (en) * | 2012-12-03 | 2014-06-11 | 麦克维尔空调制冷(武汉)有限公司 | Distributor applied to falling film type evaporator |
| CN103062962A (en) * | 2012-12-27 | 2013-04-24 | 麦克维尔空调制冷(武汉)有限公司 | Gas-liquid separative falling film type evaporator |
| CN103900299A (en) * | 2012-12-27 | 2014-07-02 | 麦克维尔空调制冷(武汉)有限公司 | Simple distributor used in falling-film evaporator |
| CN203908118U (en) * | 2014-04-24 | 2014-10-29 | 珠海格力电器股份有限公司 | Uniform distribution device and falling-film evaporator, as well as water chilling unit |
| CN205316761U (en) * | 2016-01-19 | 2016-06-15 | 诸暨市双姣制冷配件有限公司 | Refrigerant diverging device |
| CN205403254U (en) * | 2016-02-18 | 2016-07-27 | 约克（无锡）空调冷冻设备有限公司 | Falling film evaporation ware suitable for pressure refrigerant |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106482400A (en) | 2017-03-08 |
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