CN2708220Y - Highly-effective tray low-pressure evaporator for refrigerating plant - Google Patents
Highly-effective tray low-pressure evaporator for refrigerating plant Download PDFInfo
- Publication number
- CN2708220Y CN2708220Y CN 200420036698 CN200420036698U CN2708220Y CN 2708220 Y CN2708220 Y CN 2708220Y CN 200420036698 CN200420036698 CN 200420036698 CN 200420036698 U CN200420036698 U CN 200420036698U CN 2708220 Y CN2708220 Y CN 2708220Y
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- Prior art keywords
- pipe
- pallet
- capillary
- capillary evaporation
- evaporation pipe
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Abstract
The utility model provides a highly-effective tray low-pressure evaporator for a refrigerating plant which is used for the technical field of the refrigeration device. A liquid dispenser is composed of a main pipe and a plurality of branched pipes; the diameter of a drainage pipe is greater than the outer diameter of the branched pipes of the liquid dispenser. The gap is provided between the drainage pipe and the branched pipe of the liquid dispenser, and the drainage pipe is positioned between the liquid dispenser and a pallet. The pallet is tightly stuck to the lower part of the pipe row of a capillary evaporation pipe, and the gap between the pipe row of the capillary evaporation pipe and the pallet is 1 mm to 10 mm. The pallet is arranged on the bottom of the pipe row of every capillary evaporation pipe, the refrigerant is arranged inside the pallet, and the capillary evaporation pipe is half immersed inside the pallet. The capillary evaporation pipe is a highly effective heat-transfer pipe with an intensified outer wall, and the outer surface of the capillary evaporation pipe is provided with a large number of capillary channels. The liquid distribution of the utility model is uniform, and the circulation feed liquid of the refrigerant pump is not needed. The capillary evaporation pipe with the outer wall is adopted, and the cooled medium or some steam is arranged inside the pipe. The latent heat of vaporization is carried away by means of convection heat exchange or steam condensation heat exchange, the low-pressure evaporation refrigerant is operated with the capillary evaporation in the outer wall of the pipe, and the pallet has the function of supplying liquid to the capillary evaporation continuously.
Description
Technical field
The utility model is a kind of pallet low pressure evaporator, specifically is a kind of refrigerating plant with efficient pallet low pressure evaporator.Be used for technical field of refrigerating devices.
Technical background
Be in the refrigerating plant of cold-producing medium with water or methyl alcohol etc., the evaporating pressure in the evaporimeter is lower, if adopt the immersion evaporimeter, comparatively difficulty of explosive evaporation takes place then, causes the loss of refrigeration unit refrigerating capacity, and the efficient of evaporimeter is not high yet; And if adopt the fountain falling film evaporator, then need expensive vacuum freezing agent pump, not only increased power consumption but also be that the operational reliability of system descends to some extent.At present, in lithium-bromide absorption-type refrigerating machine, normally adopt falling film evaporator, disc type liquid distributor cloth liquid, require refrigerant liquid in liquid distributor, to have certain liquid level could guarantee that cloth liquid is even in the running, when evaporation capacity hour, the efficient of this evaporimeter can be very low, cloth liquid is difficulty also, and refrigeration pump power consumption ratio rises.Therefore, existing form evaporator has limited the miniaturization of absorption unit.In the absorption and adsorption refrigeration system of small-power refrigeration, falling liquid film and immersion evaporimeter are not best choice.
Find by literature search, number of patent application: 93205862.0, name is called: clad metal wire webmaster falling film evaporator, the heat exchanger tube of having introduced in this patent in a kind of vaporization chamber is made the evaporimeter that forms by the complex metal wire-mesh pipe, the clad metal wire webmaster be the surfaces externally and internally of metal tube all pressure welding order number be the pipe of 1～5 layer of woven wire of 20～120 purposes, or to become the order number in the metal pipe internal surface pressure welding be the pipe of 1～5 layer of woven wire of 20～120 purposes.The evaporimeter of this version has obtained strengthening effectively aspect heat transfer, but the contamination fouling outside the evaporation tube is more serious, and its overall performance is not ideal enough, structurally can not satisfy the desired compactedness requirement of small-sized refrigerator.
Summary of the invention
The purpose of this utility model is at the deficiencies in the prior art and defective, provides a kind of refrigerating plant with efficient pallet low pressure evaporator, makes it not have the uneven problem of cloth liquid, also need not cryogenic fluid pump circulation feed flow.This evaporimeter adopts outer wall capillary evaporation pipe, is medium or certain steam of being cooled in the pipe, relies on heat convection or vapour condensation zone to walk evaporation latent heat, and water as refrigerant or methyl alcohol are in the capillary evaporation of pipe outer wall.Be close to pipe and be placed with pallet, play and be the continuous fluid infusion effect of capillary evaporation.
The utility model is that following technical scheme realizes that the utility model comprises: liquid distributor, cold-producing medium, drainage tube, pallet, capillary evaporation pipe.The version of each parts is: liquid distributor is made up of a house steward and some being in charge of, and house steward's diameter, is in charge of diameter and quantity is decided by the evaporation capacity size.The diameter of drainage tube divides external diameter of pipe greater than liquid distributor, leaves the gap between them.Drainage tube plays the effect that the direct cold lime set flows into pallet between liquid distributor and pallet.Condensate liquid be evenly distributed to liquid distributor through liquid distributor each be in charge of, evenly be arranged in each pallet by drainage tube then, finish " once " cloth liquid.Pallet is close to capillary evaporation pipe pipe row bottom, and the gap between the capillary evaporation pipe pipe row is between 1 to 10 millimeter, its flange height at 3 millimeters between the capillary evaporation pipe radius.Pallet and capillary evaporation pipe all adopt horizontally disposed.Each capillary evaporation pipe pipe row bottom tray is furnished with cold-producing medium in the pallet, the capillary evaporation pipe partly is immersed in the pallet.The capillary evaporation pipe is the efficient heat conducting tube that outer wall is strengthened, and can rely on two kinds of processes, and a kind of for outer surface rolls fiber tube, another kind is outer surface woven wire or metal powder sintered processing.Be processed into a large amount of diameters at 0.1 to 0.5 millimeter capillary channel at the outer surface of capillary evaporation pipe.Be arranged into condensate liquid in the pallet by liquid distributor and drainage tube, finish " secondary " cloth liquid by the capillarity to cold-producing medium of capillary evaporation tube outer surface again.For low power evaporimeter, because tray number is little, the utility model also can remove liquid distributor, directly by feed tube, cold-producing medium is arranged in the pallet of top layer, and the pallet of following one deck is realized cold-producing medium cloth liquid by the overflow of last layer pallet.
The utility model utilizes liquid distributor that cold-producing medium evenly is arranged in each pallet.Because tray number is less, generally has only 3 to 15, thereby be easy to guarantee to be arranged into the interior refrigerant amount unanimity of each pallet.For the small-power evaporimeter that does not adopt liquid distributor, the cold-producing medium that is arranged in the upper tray constantly overflows this pallet, relies on gravity to flow into lower floor, thereby plays the effect of cloth liquid.Under the capillary force effect, cold-producing medium is evenly arranged on the outside wall surface of capillary evaporation pipe further.One other fluid or steam rely on heat convection or condensing heat-exchange process to take away the evaporation latent heat of cold-producing medium in the capillary evaporation pipe pipe, managing outer cold-producing medium evaporates on the capillary evaporation tube outer surface, cold-producing medium constantly relies on capillary force from replenishing the outer wall of cold-producing medium to the capillary evaporation pipe in the pallet simultaneously, realized the capillary evaporation pipe with 1: 1 ratio with cold-producing medium cloth liquid and evaporation, make evaporation process successively carry out, evaporation process need not cryogenic fluid pump.
The utility model utilizes the capillary ability of liquid distributor and capillary evaporation tube-surface that condensate liquid is distributed on the evaporating surface of capillary evaporation pipe equably, has realized that evaporimeter does not have the cryogenic fluid pump operational mode, has saved manufacturing and operating cost.This utility model is specially adapted to middle-size and small-size absorption and absorption type refrigerating machinery.In addition, the capillary surface of capillary evaporation pipe has been expanded evaporating surface, has strengthened the evaporation and heat-exchange ability of evaporimeter, has improved the efficient of evaporimeter.
Description of drawings
Fig. 1 the utility model comprises the structural representation of liquid distributor
Fig. 2 the utility model omits the structural representation of liquid distributor
The specific embodiment
As shown in Figure 1, the utility model comprises: liquid distributor 1, cold-producing medium 2, drainage tube 3, pallet 4, capillary evaporation pipe 5.Liquid distributor is made up of a house steward and some being in charge of, and house steward's diameter, is in charge of diameter and quantity is decided by the evaporation capacity size.The diameter of drainage tube 3 leaves the gap greater than 1 fen external diameter of pipe of liquid distributor between them.Drainage tube 3 is between liquid distributor 1 and pallet 4, and pallet 4 is close to capillary evaporation pipe 5 pipe row bottoms, and the gap between the capillary evaporation pipe 5 pipe rows is between 1 to 10 millimeter, its flange height at 3 millimeters between capillary evaporation pipe 5 radiuses.Pallet 4 and capillary evaporation pipe 5 all adopt horizontally disposed.Each capillary evaporation pipe 5 pipe row bottom tray 4 is furnished with cold-producing medium 2 in the pallet 4, capillary evaporation pipe 5 half is immersed in the pallet 4.The efficient heat conducting tube that capillary evaporation pipe 5 is strengthened for outer wall.A large amount of diameters are arranged at 0.1 to 0.5 millimeter capillary channel at the outer surface of capillary evaporation pipe 5.
As shown in Figure 2,, omit liquid distributor 1,, cold-producing medium 2 is arranged in the pallet 4 of top layer directly by feed tube 6 being set on top layer pallet 4 tops for low power evaporimeter.
Claims (4)
1, a kind of refrigerating plant is with efficient pallet low pressure evaporator, comprise: liquid distributor (1), cold-producing medium (2), capillary evaporation pipe (5), it is characterized in that, also comprise: drainage tube (3), pallet (4), liquid distributor (1) is made up of a house steward and some being in charge of, the diameter of drainage tube (3) divides external diameter of pipe greater than liquid distributor (1), leave the gap between them, drainage tube (3) is positioned between liquid distributor (1) and the pallet (4), pallet (4) is close to capillary evaporation pipe (5) pipe row bottom, and the gap between capillary evaporation pipe (5) the pipe row is between 1 to 10 millimeter, and each capillary evaporation pipe (5) pipe row bottom is provided with pallet (4), be furnished with cold-producing medium (2) in the pallet (4), capillary evaporation pipe (5) partly is immersed in the pallet (4), and capillary evaporation pipe (5) is the efficient heat conducting tube that outer wall is strengthened, and a large amount of diameters is arranged at 0.1 to 0.5 millimeter capillary channel at the outer surface of capillary evaporation pipe (5).
2, a kind of refrigerating plant is characterized in that with efficient pallet low pressure evaporator, for the small-power evaporimeter, omits liquid distributor (1), on top layer pallet (4) top feed tube (6) is set, and cold-producing medium is arranged in the top layer pallet (4).
3, evaporimeter according to claim 1 and 2 is characterized in that, pallet (4) and capillary evaporation pipe (5) all adopt horizontally disposed, the flange height of pallet (4) at 3 millimeters between capillary evaporation pipe 5 radiuses.
4, evaporimeter according to claim 1 and 2 is characterized in that, capillary evaporation pipe (5) is the outer surface enhanced tube, and tube outer surface is for rolling silk, metal powder sintered, multi-layer silk screen sintering capillary surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420036698 CN2708220Y (en) | 2004-06-24 | 2004-06-24 | Highly-effective tray low-pressure evaporator for refrigerating plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420036698 CN2708220Y (en) | 2004-06-24 | 2004-06-24 | Highly-effective tray low-pressure evaporator for refrigerating plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2708220Y true CN2708220Y (en) | 2005-07-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420036698 Expired - Fee Related CN2708220Y (en) | 2004-06-24 | 2004-06-24 | Highly-effective tray low-pressure evaporator for refrigerating plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2708220Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102095289A (en) * | 2011-03-08 | 2011-06-15 | 西安交通大学 | Evaporator |
| CN103791647A (en) * | 2014-02-28 | 2014-05-14 | 湖南运达节能科技有限公司 | Single pump type lithium bromide absorption unit |
| CN104819604A (en) * | 2015-04-27 | 2015-08-05 | 上海理工大学 | Layered flooded evaporator |
| CN105841405A (en) * | 2015-01-16 | 2016-08-10 | 浙江盾安机电科技有限公司 | Evaporator |
| CN106225300A (en) * | 2016-08-31 | 2016-12-14 | 广州万宝集团有限公司 | A kind of negative-pressure adsorption-type refrigeration system vaporizer |
| WO2019105607A1 (en) | 2017-11-28 | 2019-06-06 | Onda S.P.A. | Evaporator |
-
2004
- 2004-06-24 CN CN 200420036698 patent/CN2708220Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102095289A (en) * | 2011-03-08 | 2011-06-15 | 西安交通大学 | Evaporator |
| CN103791647A (en) * | 2014-02-28 | 2014-05-14 | 湖南运达节能科技有限公司 | Single pump type lithium bromide absorption unit |
| CN103791647B (en) * | 2014-02-28 | 2016-01-27 | 湖南运达节能科技有限公司 | Single pump-type lithium bromide absorption-type machine unit |
| CN105841405A (en) * | 2015-01-16 | 2016-08-10 | 浙江盾安机电科技有限公司 | Evaporator |
| CN104819604A (en) * | 2015-04-27 | 2015-08-05 | 上海理工大学 | Layered flooded evaporator |
| CN106225300A (en) * | 2016-08-31 | 2016-12-14 | 广州万宝集团有限公司 | A kind of negative-pressure adsorption-type refrigeration system vaporizer |
| WO2019105607A1 (en) | 2017-11-28 | 2019-06-06 | Onda S.P.A. | Evaporator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |