CN209524656U - Falling film evaporator and air conditioner - Google Patents
Falling film evaporator and air conditioner Download PDFInfo
- Publication number
- CN209524656U CN209524656U CN201822098754.1U CN201822098754U CN209524656U CN 209524656 U CN209524656 U CN 209524656U CN 201822098754 U CN201822098754 U CN 201822098754U CN 209524656 U CN209524656 U CN 209524656U
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- Prior art keywords
- film evaporator
- liquid
- downward film
- heat exchange
- evaporator according
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- 239000011552 falling film Substances 0.000 title abstract 5
- 239000007788 liquid Substances 0.000 claims abstract description 88
- 239000003507 refrigerant Substances 0.000 claims abstract description 30
- 230000004888 barrier function Effects 0.000 claims description 35
- 238000010276 construction Methods 0.000 claims description 10
- 238000005452 bending Methods 0.000 claims description 8
- 238000004378 air conditioning Methods 0.000 claims description 6
- 238000000926 separation method Methods 0.000 abstract description 6
- 230000005484 gravity Effects 0.000 abstract description 3
- 230000000903 blocking effect Effects 0.000 abstract 2
- 230000009977 dual effect Effects 0.000 abstract 1
- 210000000515 tooth Anatomy 0.000 description 19
- 239000002826 coolant Substances 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 3
- 230000008020 evaporation Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000002360 explosive Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 230000010412 perfusion Effects 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Details Of Heat-Exchange And Heat-Transfer (AREA)
Abstract
The utility model discloses a falling film evaporator and air conditioner. The falling film evaporator comprises a cavity with an air outlet, a heat exchange tube set arranged in the cavity and a liquid blocking structure, wherein the liquid blocking structure is arranged between the heat exchange tube set and the inner wall of the cavity and is provided with a bent air outlet channel, and a refrigerant after heat exchange with the heat exchange tube set reaches the air outlet through the air outlet channel. The utility model discloses a falling film evaporator keeps off the liquid structure through the setting and makes the refrigerant after the heat transfer of heat exchange tube group need just can reach the gas outlet through the air outlet channel of buckling, and the air outlet channel of buckling forms the vortex to the refrigerant, thereby makes under the dual function of vortex and gravity keep off the liquid structure and fully catch liquid refrigerant and improve the gas-liquid separation ability of falling film evaporator.
Description
Technical field
The utility model relates to air-conditioning technical field, in particular to a kind of downward film evaporator and air-conditioning.
Background technique
Downward film evaporator has many advantages, such as that heat exchange property is good, and perfusion coolant quantity is few, has been widely used in air conditioner cold water
Unit.Its pipe surface that exchanges heat is in explosive evaporation state when downward film evaporator is in running order, produces under explosive evaporation state
Raw cold media gas is substantially that no degree of superheat or the degree of superheat are extremely low.When degree of superheat deficiency, when air-conditioner set system is run
Easily there is the excessive liquid phase refrigerant of gas phase refrigerant entrainment and enter compressor, i.e. absorbing gas belt liquid phenomenon, certain rush is caused to compressor
It hits or damages, to reduce unit operational reliability.
Utility model content
The purpose of this utility model is to provide a kind of downward film evaporator and air-conditionings, to improve the gas of downward film evaporator
Liquid separating capacity.
The utility model first aspect provides a kind of downward film evaporator, comprising:
Chamber has gas outlet；
Set of heat exchange tubes is set in chamber；And
Liquid baffle structure is set between set of heat exchange tubes and the inner wall of chamber and has the outlet passageway of bending, with heat exchanger tube
Refrigerant after group heat exchange reaches gas outlet by outlet passageway.
In some embodiments, downward film evaporator further includes two sides and the covering set of heat exchange tubes for being set to set of heat exchange tubes
The baffle of side, liquid baffle structure are set between baffle and the inner wall of chamber.
In some embodiments, liquid baffle structure includes spaced at least two liquid barrier in the height direction, keeps off liquid
The venthole that venthole and at least two liquid barriers are provided on plate is staggered.
In some embodiments, liquid barrier includes corrugated board structures.
In some embodiments, corrugated board structures include at least two corrugated teeths.
In some embodiments, the tooth top of the corrugated teeth of the corresponding position of at least two liquid barriers is collinearly arranged.
In some embodiments, the section of corrugated teeth is triangle.
In some embodiments, the bottom interval of corrugated teeth is provided with multiple drainage holes.
In some embodiments, liquid barrier further includes the slab construction of setting with corrugated board structures two sides, venthole setting
In in slab construction.
In some embodiments, the height of corrugated teeth be more than or equal to the distance between at least two liquid barriers two/
One.
In some embodiments, venthole is rectangle venthole, the length of the length direction of rectangle venthole along liquid barrier
Direction extends.
In some embodiments, liquid baffle structure also has drainage hole, and drainage hole is for being discharged liquid refrigerants.
The utility model second aspect provides a kind of air-conditioning, the drop provided including any one of such as the utility model first aspect
Kestner long-tube evaporator.
Based on technical solution provided by the utility model, downward film evaporator is made by setting liquid baffle structure and heat exchanger tube
Refrigerant after group heat exchange needs to can be only achieved gas outlet by the outlet passageway of bending, and the outlet passageway of bending disturbs refrigerant formation
Stream makes liquid baffle structure capture liquid refrigerants sufficiently to improve downward film evaporator under the double action of flow-disturbing and gravity
Gas-liquid separation ability.
By the detailed description referring to the drawings to the exemplary embodiment of the utility model, the utility model it is other
Feature and its advantage will become apparent.
Detailed description of the invention
Attached drawing described herein is used to provide a further understanding of the present invention, and is constituted part of this application,
The exemplary embodiment of the utility model and the description thereof are used to explain the utility model, does not constitute to the improper of the utility model
It limits.In the accompanying drawings:
Fig. 1 is the schematic perspective view when shell of the evaporator of the utility model embodiment is half-sectional；
Fig. 2 is the schematic cross-sectional view of evaporator shown in FIG. 1；
Fig. 3 is the schematic perspective view of the liquid barrier in Fig. 1；
Fig. 4 is the overlooking structure diagram of liquid barrier shown in Fig. 3；
Fig. 5 is the side structure schematic view of liquid barrier shown in Fig. 3.
Each appended drawing reference respectively represents:
1, shell；2, tube sheet；3, liquid distributor；4, baffle；5, inlet tube；6, escape pipe；7, liquid barrier；71, venthole；
72, drainage hole；73, corrugated teeth；7A, the first liquid barrier；7B, the second liquid barrier；7C, third liquid barrier；7D, fourth gear liquid plate.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Be to the description only actually of at least one exemplary embodiment below it is illustrative, never as to this is practical
Novel and its application or any restrictions used.Based on the embodiments of the present invention, those of ordinary skill in the art are not having
Every other embodiment obtained under the premise of creative work is made, is fallen within the protection scope of the utility model.
Unless specifically stated otherwise, positioned opposite, the digital table of the component and step that otherwise illustrate in these embodiments
Up to the unlimited the scope of the utility model processed of formula and numerical value.Simultaneously, it should be appreciated that for ease of description, each shown in attached drawing
The size of a part is not to draw according to actual proportionate relationship.For skill known to person of ordinary skill in the relevant
Art, method and apparatus may be not discussed in detail, but in the appropriate case, and the technology, method and apparatus should be considered as awarding
Weigh part of specification.In shown here and discussion all examples, any occurrence should be construed as merely example
Property, not as limitation.Therefore, the other examples of exemplary embodiment can have different values.It should also be noted that similar
Label and letter similar terms are indicated in following attached drawing, therefore, once be defined in a certain Xiang Yi attached drawing, then with
In attached drawing afterwards do not need that it is further discussed.
For ease of description, spatially relative term can be used herein, as " ... on ", " ... top ",
" ... upper surface ", " above " etc., for describing such as a device shown in the figure or feature and other devices or spy
The spatial relation of sign.It should be understood that spatially relative term is intended to comprising the orientation in addition to device described in figure
Except different direction in use or operation.For example, being described as if the device in attached drawing is squeezed " in other devices
It will be positioned as " under other devices or construction after part or construction top " or the device of " on other devices or construction "
Side " or " under other devices or construction ".Thus, exemplary term " ... top " may include " ... top " and
" in ... lower section " two kinds of orientation.The device can also be positioned with other different modes and (is rotated by 90 ° or in other orientation), and
And respective explanations are made to the opposite description in space used herein above.
As shown in Fig. 2, the downward film evaporator of the utility model embodiment includes:
Chamber has gas outlet；
Set of heat exchange tubes 8, is set in chamber；And
Liquid baffle structure is set between set of heat exchange tubes 8 and the inner wall of chamber and has the outlet passageway of bending, with heat exchanger tube
Refrigerant after 8 heat exchange of group reaches gas outlet by outlet passageway.
The downward film evaporator of the utility model embodiment is made after exchanging heat with set of heat exchange tubes by the way that liquid baffle structure is arranged
Refrigerant needs to can be only achieved gas outlet by the outlet passageway of bending, and the outlet passageway of bending forms flow-disturbing to refrigerant, in flow-disturbing
With making liquid baffle structure sufficiently capture liquid refrigerants under the double action of gravity to improve the gas-liquid separation of downward film evaporator
Ability.The raising of the gas-liquid separation ability of the downward film evaporator of the present embodiment can prevent liquid refrigerants from entering compressor, thus
Compressor is protected to improve unit efficiency and stability.
It is carried out below according to structure of the Fig. 1 to Fig. 5 to the downward film evaporator of one specific embodiment of the utility model detailed
Explanation.
As shown in Figure 1, the downward film evaporator of the present embodiment include shell 1, be set to the both ends of shell 1 with shell 1
It is enclosed the tube sheet 2 of chamber, inlet tube 5, liquid distributor 3, is set to the indoor set of heat exchange tubes 8 of chamber and escape pipe 6.Heat exchanger tube
Group 8 includes the heat exchanger tube that multirow is arranged successively.Liquid refrigerants is by being uniformly distributed in heat exchange after inlet tube 5 and liquid distributor 3
Evaporation forms gaseous coolant in pipe group 8.
As shown in Fig. 2, the downward film evaporator of the present embodiment further includes the two sides for being set to set of heat exchange tubes 8 and covering is changed
The baffle 4 of the side of heat pipe heat 8, liquid baffle structure are set between baffle 4 and the inner wall of chamber.Specifically, the gear of the present embodiment
Liquid structure setting is between baffle 4 and the inner wall of shell 1.The two sides that baffle 4 is set to set of heat exchange tubes 8 make and set of heat exchange tubes 8
Refrigerant after heat exchange is flowed out from the lower section of set of heat exchange tubes 8 and is flowed up between baffle 4 and the inner wall of shell 1, that is,
Say that the setting of baffle 4 limits the flow path of refrigerant, and the liquid baffle structure of the present embodiment is set on the flow path, therefore
It allows for refrigerant and has to pass through liquid baffle structure getting to the gas outlet of chamber and be discharged to advanced optimize this from escape pipe 6
The gas-liquid separation effect of the downward film evaporator of embodiment.
Specifically in the present embodiment, baffle 4 is connected to the side of liquid distributor 3.
Specifically in the present embodiment, as shown in Fig. 2 to 5, the liquid baffle structure of the present embodiment includes being spaced in the height direction
At least two liquid barriers 7 being arranged are provided with two gear liquid adjacent in venthole 71 and at least two liquid barriers on liquid barrier 7
The venthole 71 of plate 7 is staggered.The venthole of two adjacent liquid barriers 7 is staggered so that refrigerant is through this embodiment
Liquid baffle structure when its path be bending so that liquid refrigerants is captured by liquid barrier 7.
Specifically, as shown in Fig. 2, the liquid baffle structure of the present embodiment includes four liquid barriers set gradually, respectively
One liquid barrier 7A, the second liquid barrier 7B, third liquid barrier 7C and fourth gear liquid plate 7D.
It is acted on to further increase liquid baffle structure to the flow-disturbing of refrigerant, as shown in figure 3, the liquid barrier of the present embodiment includes
Corrugated board structures.The flow path that Fig. 2 shows refrigerants when passing through corrugated board structures.
The corrugated board structures of the present embodiment include at least two corrugated teeths, and the bottom of corrugated teeth is provided with drainage hole 72.Wave
The setting of line tooth forms flow-disturbing to the flowing of refrigerant so that corrugated board structures can sufficiently capture liquid refrigerants.Corrugated teeth
Bottom setting drainage hole 72 is discharged in time with the liquid refrigerants to get off that will stop to be avoided accumulating.
As shown in figure 4, in the longitudinal direction, the bottom interval of corrugated teeth is provided with multiple drainage holes 72.Preferably, ripple
The bottom of tooth is evenly distributed with multiple drainage holes 72.
The diameter of drainage hole 72 is less than or equal to 3mm.And the spacing between two adjacent drainage holes is more than or equal to 50mm.
In order to reduce the pressure loss while gas-liquid separation is effectively ensured, at least two liquid barriers 7 of the present embodiment
The tooth top of the corrugated teeth of corresponding position is collinearly arranged.
In order to guarantee that corrugated teeth acts on the flow-disturbing of refrigerant, the height of the corrugated teeth of the present embodiment is more than or equal at least two
The half of the distance between liquid barrier.
As shown in figure 5, the section of the corrugated teeth of the present embodiment is triangle.Specifically, the section of corrugated teeth is isosceles three
It is angular.
As shown in Figures 4 and 5, the liquid barrier 7 of the present embodiment further includes the slab construction for being set to corrugated board structures two sides, is led to
Stomata 71 is set in slab construction.
The venthole of the present embodiment is rectangle venthole, and the length direction of rectangle venthole prolongs along the length direction of liquid barrier
It stretches.The length direction of the present embodiment refers to the axial direction of heat exchanger tube.The setting of the rectangle venthole enables gaseous coolant
Enough in time by reducing the pressure loss.
In the unshowned embodiment of other accompanying drawings, liquid baffle structure can also be by the tubular-shaped structures with bent passage come shape
At.
Finally it should be noted that: above embodiments are only to illustrate the technical solution of the utility model rather than limit it
System；Although the utility model has been described in detail with reference to the preferred embodiment, those of ordinary skill in the art should
Understand: specific implementation of the utility model can still be modified or is equally replaced to some technical characteristics
It changes；Without departing from the spirit of technical solutions of the utility model, should all cover in the claimed technical solution of the utility model
In range.
Claims (13)
1. a kind of downward film evaporator characterized by comprising
Chamber has gas outlet；
Set of heat exchange tubes (8), is set in the chamber；And
Liquid baffle structure is set between the set of heat exchange tubes (8) and the inner wall of the chamber and has the outlet passageway of bending, with
Refrigerant after set of heat exchange tubes (8) heat exchange reaches the gas outlet by the outlet passageway.
2. downward film evaporator according to claim 1, which is characterized in that the downward film evaporator further includes being set to
The two sides of the set of heat exchange tubes (8) and the baffle (4) of the side of the covering set of heat exchange tubes (8), the liquid baffle structure are set to
Between the baffle (4) and the inner wall of the chamber.
3. downward film evaporator according to claim 1, which is characterized in that the liquid baffle structure includes in the height direction
Spaced at least two liquid barrier (7) is provided with venthole (71) and at least two gears liquid on the liquid barrier (7)
The venthole (71) of plate (7) is staggered.
4. downward film evaporator according to claim 3, which is characterized in that the liquid barrier (7) includes corrugated board structures.
5. downward film evaporator according to claim 4, which is characterized in that the corrugated board structures include at least two waves
Line tooth.
6. downward film evaporator according to claim 5, which is characterized in that the corresponding position of at least two liquid barrier
The tooth top of corrugated teeth be collinearly arranged.
7. downward film evaporator according to claim 5, which is characterized in that the section of the corrugated teeth is triangle.
8. downward film evaporator according to claim 5, which is characterized in that the bottom interval of the corrugated teeth is provided with more
A drainage hole.
9. downward film evaporator according to claim 4, which is characterized in that the liquid barrier further includes setting and the wave
The slab construction of card structure two sides, the venthole (71) are set in the slab construction.
10. downward film evaporator according to claim 5, which is characterized in that the height of the corrugated teeth is more than or equal to institute
State the half of the distance between at least two liquid barriers.
11. downward film evaporator according to claim 3, which is characterized in that the venthole is rectangle venthole, described
The length direction of rectangle venthole extends along the length direction of the liquid barrier.
12. downward film evaporator according to claim 1, which is characterized in that the liquid baffle structure also has drainage hole, institute
Drainage hole is stated for liquid refrigerants to be discharged.
13. a kind of air-conditioning, which is characterized in that including the downward film evaporator as described in any one of claims 1 to 12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822098754.1U CN209524656U (en) | 2018-12-14 | 2018-12-14 | Falling film evaporator and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822098754.1U CN209524656U (en) | 2018-12-14 | 2018-12-14 | Falling film evaporator and air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209524656U true CN209524656U (en) | 2019-10-22 |
Family
ID=68226786
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822098754.1U Active CN209524656U (en) | 2018-12-14 | 2018-12-14 | Falling film evaporator and air conditioner |
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| Country | Link |
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| CN (1) | CN209524656U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109357441A (en) * | 2018-12-14 | 2019-02-19 | 珠海格力电器股份有限公司 | Falling film evaporator and air conditioner |
-
2018
- 2018-12-14 CN CN201822098754.1U patent/CN209524656U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109357441A (en) * | 2018-12-14 | 2019-02-19 | 珠海格力电器股份有限公司 | Falling film evaporator and air conditioner |
| WO2020119266A1 (en) * | 2018-12-14 | 2020-06-18 | 珠海格力电器股份有限公司 | Falling film evaporator and air conditioner |
| CN109357441B (en) * | 2018-12-14 | 2024-05-03 | 珠海格力电器股份有限公司 | Falling film evaporator and air conditioner |
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| GR01 | Patent grant |