CN208871912U - A kind of downward film evaporator - Google Patents
A kind of downward film evaporator Download PDFInfo
- Publication number
- CN208871912U CN208871912U CN201821264009.3U CN201821264009U CN208871912U CN 208871912 U CN208871912 U CN 208871912U CN 201821264009 U CN201821264009 U CN 201821264009U CN 208871912 U CN208871912 U CN 208871912U
- Authority
- CN
- China
- Prior art keywords
- chamber
- heat exchanger
- heat exchanging
- film evaporator
- liquid
- 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.)
- Active
Links
Abstract
The utility model discloses a kind of downward film evaporators, including liquid separation general pipeline, the multiple distributors being connected to the liquid separation general pipeline, heat exchanger and the separating tube for being connected to the distributor with heat exchanger；Heat exchanger includes shell, admission chamber, heat exchanging chamber and the outlet chamber being connected to heat exchanging chamber, and heat exchanging chamber is located at admission chamber lower end, and outlet chamber is located at heat exchanging chamber two sides；The junction of admission chamber and heat exchanging chamber is provided with equal liquid component, and heat exchanging chamber is internally provided with multiple heat exchanger tubes, and the heat exchanging chamber and inlet chamber junction are provided with gas block panel.Distributor is placed in outside heat exchanger by the utility model, reduces evaporator tube volume, and the utility model is designed reasonably, and structure is simple, easy to control, can make unit under cooling condition, is improved unit cooling capacity, is met user demand.
Description
Technical field
The utility model relates to refrigeration equipments, in particular to one of refrigeration equipment downward film evaporator.
Background technique
Water cooler mainly has flooded evaporator and falling film type to steam using high-efficiency evaporator in current refrigeration industry
Send out device.Wherein, downward film evaporator is due to having many advantages, such as that refrigerant charge is few, heat exchange efficiency is high compared to full liquid evaporator.
Therefore downward film evaporator is applied more extensive within air-conditioning systems.Contain liquid distributor, cloth in existing downward film evaporator cylinder
The problems such as liquid device includes liquid-distributing plate and inlet tube, and there are also heat exchanger tubes, big with cylinder, and lower part is easy liquid collecting.And at present
The disadvantages of liquid liquid distributor mostly uses the multidirectional liquid separation of two-stage, and complex process in such structure operation is at high cost, and effect is poor, and it is right
In the larger evaporator of cylinder, lower liquid spray is uneven, and evaporation is incomplete.
Refrigerant distributor is arranged in falling film evaporator usually at refrigerant inlet, and refrigerant can be uniform by distributor
Be distributed to downward film evaporator heat exchange pipe surface formed liquid film be evaporated.Normally enter the distribution of falling film evaporator refrigerant
Refrigerant condition in device is gas-liquid two-phase, and the uniformity that refrigerant distributes between each heat exchanger tube of downward film evaporator affects
On the heat exchanger tube of downward film evaporator, it will the whole heat transfer property of downward film evaporator is caused to decline.Simultaneously for cylinder compared with
Big evaporator, lower liquid spray is uneven, and it is incomplete to be easy evaporation.
Utility model content
Purpose of utility model: the utility model provides a kind of downward film evaporator of external distributor of band, can reduce steaming
Device cylinder size is sent out, and distribution effects is improved, small investment, energy-efficient, stable and reliable operation.
Technical solution: a kind of downward film evaporator described in the utility model, including the liquid separation general pipeline and liquid separation general pipeline
Multiple distributors, heat exchanger and the separating tube for being connected to the distributor with the heat exchanger of connection；The heat exchanger packet
Shell is included, is connected to positioned at the admission chamber of the enclosure interior, the heat exchanging chamber that is connected to the admission chamber and with the heat exchanging chamber
Outlet chamber；The heat exchanging chamber is located at the admission chamber lower end, and the outlet chamber is located at the heat exchanging chamber two sides；The admission chamber
The junction of the heat exchanging chamber is provided with equal liquid component, the heat exchanging chamber is internally provided with multiple heat exchanger tubes, the heat exchanging chamber
The outlet chamber junction is provided with gas block panel.
A kind of preferred embodiment of the utility model be the equal liquid component include arc liquid-distributing plate and be located at the arc it is equal
The arc-shaped fluid-uniformly mixing groove of entirety below liquid plate, the fluid-uniformly mixing groove bottom are provided with several through-holes passed through for refrigerant；Arc
Liquid-distributing plate can be reduced because the hydrops problem that cylinder inclination generates, flows out liquid freely, in addition, arc liquid-distributing plate can
With closely coupled with the cylinder of heat exchanger, it is not likely to produce welding gap.
A kind of preferred embodiment of the utility model is that the fluid-uniformly mixing groove includes matching with the heat exchanger tube for several dislocation
Several equal sap cavities, the size of equal sap cavity determines according to heat exchanger tube radical and heat exchange tube diameter, guarantees there is hydrops in slot；It is described equal
Several through-holes are distributed in sap cavity bottom, and several through-holes in the equal sap cavity and the heat exchanger tube being disposed below are flat
Row, via openings area are related to heat exchanger tube radical and heat exchange tube diameter.
A kind of preferred embodiment of the utility model is that the through-hole lower end has downwardly convex anchor ring, guarantees that refrigerant is accurate
Ground reaches corresponding heat exchanger tube.
A kind of preferred embodiment of the utility model is outlet end direction cross section of the anchor ring from liquid feeding end to anchor ring
Diameter is gradually reduced.
A kind of preferred embodiment of the utility model is that the cylinder of the heat exchanger is rectangular or cylinder-shaped.The utility model is logical
The volume that external distributor reduces evaporator tube is crossed, on the basis of columnar structured, the heat exchanger of the utility model
Cylinder further may be configured as it is rectangular, have using increase cylinder using area, can Modularized splice, occupied area is small,
It can be according to the cylinder size of Site Design evaporator, strong applicability.
A kind of preferred embodiment of the utility model is that the heat exchanging chamber and the outlet chamber connectivity part are provided with strainer.Strainer
Particle unclean in system and foreign body filtering can be caused into motor and rotor fault to prevent from being inhaled into compressor；Can have
The reduction air-breathing pressure drop of effect.
A kind of preferred embodiment of the utility model is the support plate that the fixed separating tube is provided at the top of the heat exchanger.
A kind of preferred embodiment of the utility model is that the distance between adjacent described distributor is not more than 256mm, specifically may be used
Determine that heat exchanger cylinder size and heat exchanger barrel lenght select the interval distance of corresponding distributor according to the size of cooling system amount
From.A kind of preferred embodiment of the utility model is that the distributor upper end is not more than 20mm at a distance from the feed liquor house steward；For
The throttling of reduction inlet tube generates gas-liquid two-phase in advance, and the shorter distributor should be the better at a distance from feed liquor house steward, this distance only needs
Meet weld length, that is, is not more than 20mm.A kind of preferred embodiment of the utility model is the separating tube and the heat exchange
The distance of device upper end is not more than 20mm；Liquid-to-air exchanges heat in advance in separating tube in order to prevent, separating tube and heat exchanger cylinder
The distance between it is more shorter better, specifically can be depending on dispenser and the capillary being connected to dispenser pipe diameter size.
A kind of preferred embodiment of the utility model is that the distributor is connected to by feed liquor house steward with the liquid separation general pipeline, into
The aperture internal diameter of liquid pipe is total feed liquor pipe outside diameter of liquid-dividing head.
The working principle of the utility model are as follows: feed liquor house steward is entered by the liquid refrigerants that expansion valve comes out and is assigned to each point
Liquid device, dispenser enter on the liquid-distributing plate of equal liquid component, are uniformly sprayed on heat exchanger tube by liquid-distributing plate bottom fluid-uniformly mixing groove, form drop
Film evaporation, the gaseous coolant after evaporation enter outlet chamber by heat exchanging chamber bottom and enter compressor out.
The utility model has the advantages that distributor is placed in outside heat exchanger by (1) the utility model, it is empty to improve heat exchanger inner utilization
Between, reduce evaporator tube size；(2) distributor of the utility model installation site outside cylinder is flexible, according to unit design
It is required that the position of arbitrarily devised distributor；(3) the utility model increases equal liquid component among heat exchanger cylinder, makes ejecting liquid
At the liquid-distributing plate for dropping down onto equal liquid component, so that liquid is uniformly dropped down onto cylinder lower half portion by liquid-distributing plate, sufficiently connect with heat exchanger tube
Touching evaporates liquid coolant more thorough, improves the heat exchange efficiency of heat exchanger；(4) the utility model is arranged in equal liquid component
The shape of fluid-uniformly mixing groove, fluid-uniformly mixing groove and heat exchanger tube matches, improve it is anti-the performances such as tilt, wave, while solving liquid-distributing plate
Hydrops problem；(5) the utility model offers through-hole in fluid-uniformly mixing groove bottom, matches with corresponding heat exchanger tube, so that each heat exchange
Guan Junke spray arrives, and substantially increases the heat exchange efficiency of evaporator；(6) heat exchanger of the utility model is equipped with liquid-distributing plate, makes to change
Heat pipe and liquid contact are more uniform, improve liquid evaporation amount, improve the heat exchange efficiency of container；(7) the utility model is located at equal
The through-hole of liquid bath bottom, through-hole lower end are annuli arrangement, guarantee that refrigerant accurately reaches corresponding heat exchanger tube；(8) this is practical
Novel evaporator is controlled by distributor and is distributed, and the groove depth matched design of separating tube diameter length and liquid separation slot makes to make in container
Refrigerant distribution is uniform, improves unit refrigerating capacity, and control precision height.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the utility model embodiment 1；
Fig. 2 is the cross-sectional view of the structure of the utility model embodiment 1；
Fig. 3 is the equal liquid component structure diagram of the utility model embodiment 1；
Fig. 4 is the through-hole structure schematic diagram of the utility model embodiment 1；
Fig. 5 is the heat exchanger tube structure of the utility model embodiment 2.
Specific embodiment
The structure of the utility model is further illustrated with reference to the accompanying drawing.It should also be noted that, in order to avoid
The utility model has been obscured because of unnecessary details, illustrate only in the accompanying drawings close with scheme according to the present utility model
Relevant structure, and the other details little with the utility model relationship are omitted.Such as be related in the present invention " first ",
The description of " second " etc. is used for description purposes only, and is not understood to indicate or imply its relative importance or is implicitly indicated institute
The quantity of the technical characteristic of instruction." first " is defined as a result, the feature of " second " can explicitly or implicitly include at least
One this feature.
Embodiment 1: as shown in Figure 1, downward film evaporator described in the utility model, including it is liquid separation general pipeline 1, total with liquid separation
Multiple distributors 2, heat exchanger 3 and the separating tube 4 for being connected to distributor 2 with heat exchanger 3 that pipe 1 is connected to are set at the top of heat exchanger 3
It is equipped with the support plate 38 of the fixed separating tube 4.Separating tube 4 is not more than at a distance from 3 upper end of heat exchanger in the present embodiment
20mm, the distance between adjacent distributor 2 are no more than 256mm.
As shown in Fig. 2, heat exchanger 3 is connected to including shell 31, the admission chamber 32 inside shell 31, with admission chamber 32
Heat exchanging chamber 33 and the outlet chamber 34 that is connected to heat exchanging chamber 33；Heat exchanging chamber 33 is located at 32 lower end of admission chamber, is internally provided with more
The junction of a heat exchanger tube 36, admission chamber 32 and heat exchanging chamber 33 is provided with equal liquid component 35；Outlet chamber 34 is located at 33 liang of heat exchanging chamber
Side, heat exchanging chamber 33 and 34 junction of outlet chamber are provided with gas block panel 37, and heat exchanging chamber 33 and 34 connectivity part of outlet chamber are provided with 120 mesh
Strainer, for particle unclean in system and foreign body filtering to be caused motor and rotor fault to prevent from being inhaled into compressor,
Air-breathing pressure drop can be effectively reduced.
As shown in figure 3, liquid component 35 includes arc liquid-distributing plate 351 and the entirety positioned at 351 lower section of arc liquid-distributing plate is in
The fluid-uniformly mixing groove 352 of arc；352 bottom of fluid-uniformly mixing groove is provided with several through-holes 3522 passed through for refrigerant, and fluid-uniformly mixing groove 352 includes
The equal sap cavity 3521 of several dislocation to match with heat exchanger tube 36, the height of equal sap cavity 3521 is according to heat exchanger tube radical and heat exchanger tube
Caliber is determined, and guarantees there is a hydrops in slot.
As shown in figure 4, several through-holes 3522, through-hole 3522 and the heat exchange being disposed below is distributed in 3521 bottom of sap cavity
Pipe 36 is parallel, and through-hole lower end has downwardly convex anchor ring 3523, and outlet end direction of the anchor ring 3523 from liquid feeding end to anchor ring is horizontal
The diameter in section is gradually reduced, and the perforated area size of through-hole 3522 is determined according to heat exchanger tube radical and heat exchange tube diameter.
The distance between adjacent distributor determines the diameter and barrel lenght of 3 cylinder of heat exchanger according to the size of refrigerating capacity
Reasonably select the distance between distributor, 2 upper end of distributor at a distance from feed liquor house steward 1≤20mm, prevent from leading apart from too long
Liquid refrigerants throttling is caused to vaporize in advance.Distributor 2 is connected to by feed liquor house steward 21 with liquid separation general pipeline 1, the aperture of feed liquor house steward
Internal diameter is identical as the outer diameter of total inlet tube of liquid-dividing head, and the mode using slotting weldering is closely coupled, prevents the harm of leakage.
Embodiment 2: as shown in figure 5, the cylinder of heat exchanger 3 is rectangular, it is circle relative to 3 cylinder of heat exchanger in embodiment 1
Tubular is compared, heat exchanger cylinder be it is rectangular, it is possible to increase cylinder using area, Modularized splice, occupied area is small, can basis
The cylinder size of Site Design evaporator, strong applicability.
The utility model by former falling film evaporator liquid-distributing plate distribution be changed to liquid-dividing head form, barrel diameter can be changed it is small,
Unit cost is reduced, evaporator is distributed by distributor, and liquid separation slot keeps refrigerant in container evenly distributed, improves unit refrigeration
Amount, and precision height is controlled, the arc liquid-distributing plate in evaporator contacts heat exchanger tube and liquid more uniform, provides liquid steaming
Hair amount increases the heat exchange efficiency of container.
Claims (10)
1. a kind of downward film evaporator, which is characterized in that be connected to including liquid separation general pipeline (1), with the liquid separation general pipeline (1) multiple
Distributor (2), heat exchanger (3) and the separating tube (4) for being connected to the distributor (2) with the heat exchanger (3)；The heat exchange
Device (3) includes shell (31), the heat exchange for being located at the shell (31) internal admission chamber (32), being connected to the admission chamber (32)
Chamber (33) and the outlet chamber (34) being connected to the heat exchanging chamber (33)；The heat exchanging chamber (33) is located under the admission chamber (32)
End, the outlet chamber (34) are located at the heat exchanging chamber (33) two sides；The connection of the admission chamber (32) and the heat exchanging chamber (33)
Place is provided with equal liquid component (35), and the heat exchanging chamber (33) is internally provided with multiple heat exchanger tubes (36), the heat exchanging chamber (33) with
Outlet chamber (34) junction is provided with gas block panel (37).
2. downward film evaporator according to claim 1, which is characterized in that the equal liquid component (35) includes the equal liquid of arc
Plate (351) and the whole arc-shaped fluid-uniformly mixing groove (352) below the arc liquid-distributing plate (351), fluid-uniformly mixing groove (352) bottom
Portion is provided with several through-holes (3522) passed through for refrigerant.
3. downward film evaporator according to claim 2, which is characterized in that the fluid-uniformly mixing groove (352) includes several dislocation
Several equal sap cavities (3521) to match with the heat exchanger tube (36), several through-holes are distributed in equal sap cavity (3521) bottom
(3522), several through-holes (3522) being located in the equal sap cavity (3521) are parallel with underlying heat exchanger tube (36).
4. downward film evaporator according to claim 3, which is characterized in that through-hole (3522) lower end has downwardly convex
The anchor ring (3523) risen.
5. downward film evaporator according to claim 4, which is characterized in that the anchor ring (3523) is from liquid feeding end to anchor ring
The diameter of outlet end direction cross section be gradually reduced.
6. downward film evaporator according to claim 1, which is characterized in that the cylinder of the heat exchanger (3) be it is rectangular or
It is cylinder-shaped.
7. downward film evaporator according to claim 1, which is characterized in that the heat exchanging chamber (33) and the outlet chamber
(34) connectivity part is provided with strainer (39).
8. downward film evaporator according to claim 1, which is characterized in that be provided with fixation at the top of the heat exchanger (3)
The support plate (38) of the separating tube (4).
9. downward film evaporator according to claim 1, which is characterized in that distributor (2) upper end and the feed liquor
The distance of general pipeline (1) is not more than 20mm.
10. downward film evaporator according to claim 1, which is characterized in that the separating tube (4) and the heat exchanger
(3) distance of upper end is not more than 20mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821264009.3U CN208871912U (en) | 2018-08-07 | 2018-08-07 | A kind of downward film evaporator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821264009.3U CN208871912U (en) | 2018-08-07 | 2018-08-07 | A kind of downward film evaporator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208871912U true CN208871912U (en) | 2019-05-17 |
Family
ID=66464098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821264009.3U Active CN208871912U (en) | 2018-08-07 | 2018-08-07 | A kind of downward film evaporator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208871912U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109140835A (en) * | 2018-08-07 | 2019-01-04 | 南京恒标斯瑞冷冻机械制造有限公司 | A kind of downward film evaporator |
| WO2023082700A1 (en) * | 2021-11-11 | 2023-05-19 | 珠海格力电器股份有限公司 | Heat exchanger and air conditioning unit |
-
2018
- 2018-08-07 CN CN201821264009.3U patent/CN208871912U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109140835A (en) * | 2018-08-07 | 2019-01-04 | 南京恒标斯瑞冷冻机械制造有限公司 | A kind of downward film evaporator |
| WO2023082700A1 (en) * | 2021-11-11 | 2023-05-19 | 珠海格力电器股份有限公司 | Heat exchanger and air conditioning unit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204027084U (en) | A kind of downward film evaporator | |
| US7421855B2 (en) | Gas trap distributor for an evaporator | |
| CN107490212B (en) | A kind of Falling Film Evaporator of Horizontal Tube | |
| CN208871912U (en) | A kind of downward film evaporator | |
| EP2807439B1 (en) | Evaporator and liquid distributor | |
| EP3698090B1 (en) | Distributor, fall film evaporator and refrigeration system | |
| US10222105B2 (en) | Refrigerant distributor for falling film evaporator | |
| JP2022515614A (en) | Heat exchanger | |
| US20070151279A1 (en) | Spray type heat-exchanging unit | |
| CN105953629A (en) | Heat exchanger | |
| CN202304118U (en) | Falling film evaporator | |
| JP2021500523A (en) | Flowing liquid film heat exchanger | |
| CN109140835A (en) | A kind of downward film evaporator | |
| CN210892266U (en) | Microchannel heat exchanger and refrigerating system | |
| CN209893691U (en) | Knockout and have its refrigerating system | |
| CN204730527U (en) | A kind of recirculation falling film evaporator | |
| CN207515281U (en) | A kind of evaporator and refrigeration system | |
| CN208871911U (en) | A kind of shell and tube evaporator and refrigeration equipment | |
| CN203687461U (en) | Full falling film evaporator with double refrigerant distributing devices | |
| CN205957544U (en) | Falling film evaporator and air conditioner | |
| CN208720576U (en) | Heat exchanger and air conditioner with it | |
| US11629896B2 (en) | Heat exchanger and refrigeration cycle apparatus | |
| CN207006613U (en) | A kind of bottom heat exchange mechanisms of the refrigeration unit of height reduction | |
| CN210292441U (en) | Porous liquid distribution device | |
| CN218495437U (en) | Heat exchanger and air conditioner |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |