CN206890924U - Downward film evaporator - Google Patents
Downward film evaporator Download PDFInfo
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- CN206890924U CN206890924U CN201720490193.2U CN201720490193U CN206890924U CN 206890924 U CN206890924 U CN 206890924U CN 201720490193 U CN201720490193 U CN 201720490193U CN 206890924 U CN206890924 U CN 206890924U
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- Prior art keywords
- gas
- film evaporator
- liquid
- downward film
- filter net
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Abstract
The utility model discloses a kind of downward film evaporator.The downward film evaporator includes inlet (1) and gas outlet (2), and inlet (1) and gas outlet (2) shift to install, and gas outlet (2) place is provided with the first gas-liquid filter net (3).According to downward film evaporator of the present utility model, inlet can be avoided to use the feed tube influence gas-liquid filteration network arrangements caused by plug-in type with gas outlet, influence the problem of gas outlet is with liquid proportional.
Description
Technical field
Air-conditioning technical field is the utility model is related to, in particular to a kind of downward film evaporator.
Background technology
Downward film evaporator performance depends primarily on two parts, one is refrigerant after liquid distributor by being assigned to evaporation tube
The cloth liquid uniformity on surface and the liquid film completeness of formation；The second is refrigerant evaporation after gas liquid entrainment situation, that is, inhale
Gas carrying liquid phenomenon.
As shown in figure 1, conventional downward film evaporator is using arrangement in the same direction directly over inlet 1 ', gas outlet 2 ', inlet
1 ' is inserted into liquid distributor with a kind of plug-in type liquid pipe, and top reserves a part of space and is used to be vented.This makes arrangement gas-liquid filteration
The space of net 3 ' is limited, the mesh density of gas-liquid filter net 3 ' deficiency, gas outlet band liquid proportional is directly influenced, by feed liquor mouth structure
Limit, liquid distributor refrigerant liquid separation effect is greatly affected.
Utility model content
A kind of downward film evaporator is provided in the utility model embodiment, can avoid inlet with gas outlet using insertion
Feed tube caused by formula influences gas-liquid filteration network arrangements, influences the problem of gas outlet is with liquid proportional.
To achieve the above object, the utility model embodiment provides a kind of downward film evaporator, including inlet and outlet
Mouthful, inlet and gas outlet are shifted to install, and the first gas-liquid filter net is provided with gas outlet.
Preferably, downward film evaporator also includes a liquid distributor being arranged at inlet and is arranged on a cloth liquid
Evaporation tube below device.
Preferably, one time is additionally provided with knockout between liquid distributor and evaporation tube, knockout has towards evaporation tube
Spray hole, spray hole are gradually reduced along the direction section close to evaporation tube.
Preferably, spray hole is conical bore.
Preferably, knockout is ripple type.
Preferably, spray hole is located at the trough of ripple type knockout.
Preferably, evaporation tube is divided into two regions up and down, it is additionally provided between the evaporation tube in upper and lower two regions secondary
Liquid distributor.
Preferably, downward film evaporator also includes housing and the orifice plate in housing, orifice plate are engaged with housing, enclose
Into outlet region, the first gas-liquid filter net is arranged on outlet region, and gas outlet is communicated to outlet region.
Preferably, also include the second gas-liquid filter net below the first gas-liquid filter net in outlet region, second
The mesh density of gas-liquid filter net is less than the mesh density of the first gas-liquid filter net.
Preferably, secondary liquid distributor extends to outlet region, and outlet region is divided into two parts up and down, first
Gas-liquid filter net is located at the top in outlet region, and the second gas-liquid filter net is located at the bottom in outlet region.
Preferably, the part that secondary liquid distributor is located at outlet region is provided with the 3rd gas-liquid filter net, secondary liquid distributor
Both sides be fixedly connected with the madial wall of housing.
Preferably, inlet is located at the top of downward film evaporator, gas outlet is two, and two gas outlets are with by entering
Longitudinal midplane of the center line of liquid mouth is symmetrical arranged for minute surface.
Using the technical solution of the utility model, downward film evaporator includes inlet and gas outlet, inlet and outlet
Mouth is shifted to install, and the first gas-liquid filter net is provided with gas outlet.Because the inlet of downward film evaporator and gas outlet misplace
Can be inlet to the occupancy in space each other when setting, therefore can avoid inlet and the gas outlet from using plug in construction
Enough cloth liquid spaces are provided, liquid distributor effect is more preferable, and liquid film forming is more preferable.Because inlet no longer takes the inside of gas outlet
Space, therefore have enough space arrangement gas-liquid filter nets at gas outlet, the mesh density of gas-liquid filter net can be made higher, obtained
To the gas outlet band liquid proportional for meeting to require, flowing gas state is more stable, and outlet is evenly.
Brief description of the drawings
Fig. 1 is the structural representation of downward film evaporator of the prior art；
Fig. 2 is the structural representation of the downward film evaporator of the utility model embodiment；
Fig. 3 is the structural representation of the knockout of the downward film evaporator of the utility model embodiment；
Fig. 4 is the structural representation of the secondary liquid distributor of the downward film evaporator of the utility model embodiment.
Description of reference numerals：1st, inlet；2nd, gas outlet；3rd, the first gas-liquid filter net；4th, a liquid distributor；5th, evaporate
Pipe；6th, knockout；7th, spray hole；8th, secondary liquid distributor；9th, the second gas-liquid filter net；10th, the 3rd gas-liquid filter net；11st, housing；
12nd, orifice plate.
Embodiment
The utility model is described in further detail with specific embodiment below in conjunction with the accompanying drawings, but not as to this practicality
New restriction.
With reference to shown in referring to Fig. 2 to Fig. 4, according to embodiment of the present utility model, downward film evaporator includes the He of inlet 1
Gas outlet 2, inlet 1 and gas outlet 2 are shifted to install, and the first gas-liquid filter net 3 is provided with gas outlet 2.
Because the inlet of downward film evaporator and gas outlet shift to install, therefore inlet 1 and gas outlet 2 can be avoided
Can be that inlet 1 provides enough cloth liquid spaces, liquid distributor effect to the occupancy in space each other during using plug in construction
More preferably, liquid film forming is more preferable.Because inlet 1 no longer takes the inner space of gas outlet 2, therefore have at gas outlet 2 enough
Gas-liquid filter net is arranged in space, and the mesh density of gas-liquid filter net can be made higher, is met the gas outlet band liquor ratio of requirement
Example, flowing gas state is more stable, and outlet is evenly.
Downward film evaporator also includes a liquid distributor 4 being arranged at inlet 1 and is arranged on a lower section of liquid distributor 4
Evaporation tube 5.One time liquid distributor 4 can carry out cloth liquid to entering the liquid inside downward film evaporator so that liquid distribution is more
Add uniformly, can be more uniformly distributed on evaporation tube 5 so that the stroke of liquid film is more preferable.
Knockout 6 is additionally provided between liquid distributor 4 and evaporation tube 5, knockout 6 has the hydrojet towards evaporation tube 5
Hole 7, spray hole 7 are gradually reduced along the direction section close to evaporation tube 5.
Knockout 6 can play reallocation effect to liquid so that the distribution of liquid is more uniform, and can be by dividing
Spray hole 7 on liquid device 6 increases liquid flow velocity so that the injection of drop is more reasonable, and more effectively, liquid distribution is more
Add uniformly.
Preferably, spray hole 7 be conical bore, the tactical rule of conical bore, and liquid enter it is suffered after spray hole 7 should
Power is smaller, and the rounded distribution when being sprayed from spray hole 7, liquid distribution is more uniform, and liquid separation is better.
Preferably, knockout 6 is ripple type.Ripple type knockout 6 can play effective flow-disturbing effect, while can also
The rigidity effect of raising knockout 6 itself, is unlikely to deform, vibrates, and improves the stability of the structure of knockout 6 and works reliable
Property.
Preferably, spray hole 7 is located at the trough of ripple type knockout 6, more carries out collecting for liquid by trough, so
The liquid collected is sprayed afterwards, liquid injection efficiency and jeting effect is improved, easily facilitates to form liquid film.
Evaporation tube 5 is divided to for upper and lower two regions, and secondary liquid distributor 8 is additionally provided between the evaporation tube 5 in upper and lower two regions.
Secondary liquid distributor 8 can carry out liquid separation again to the liquid flowed down after the evaporation tube 5 of upper area so that liquid can be again
Secondary reasonable distribution, beneficial to liquid separation is carried out again at bottom evaporation tube 5, complete liquid film can be preferably formed, improves evaporation
The evaporation effect of pipe 5.
Downward film evaporator also includes housing 11 and the orifice plate 12 in housing 11, orifice plate 12 are engaged with housing 11,
Outlet region is surrounded, the first gas-liquid filter net 3 is arranged on outlet region, and gas outlet 2 is communicated to outlet region.Orifice plate 12 can be right
Planned into the flow path of the liquid in downward film evaporator so that the gas after evaporation and heat-exchange can be through orifice plate 12
On perforate enter at the first gas-liquid filter net 3 and filtered, the band liquid gas after being filtered through the first gas-liquid filter net 3 from
Flowed out at gas outlet 2.
Preferably, the second gas-liquid filter net 9 positioned at the lower section of the first gas-liquid filter net 3 is also included in outlet region, second
The mesh density of gas-liquid filter net 9 is less than the mesh density of the first gas-liquid filter net 3.Gas first flows through in flow process
Two gas-liquid filter nets 9, the first gas-liquid filter net 3 is passed through afterwards.Second gas-liquid filter net 9 and the first gas-liquid filter net 3 are formed
The ascending gas-liquid filteration region of multiple tracks mesh density, more conforms to gas flowing law.Multiple tracks gas-liquid filteration structure makes gas
Liquid mixture is efficiently separated, and drop can not finally arrive at gas outlet by obstructing layer by layer.Multiple tracks gas-liquid filteration region is can
Region is adjusted, its filter screen density, level be not unique, can suitably be adjusted according to actual pressure, evaporation capacity.
Secondary liquid distributor 8 extends to outlet region, and outlet region is divided into two parts up and down, the first gas-liquid filteration
Net 3 is located at the top in outlet region, and the second gas-liquid filter net 9 is located at the bottom in outlet region.Secondary liquid distributor 8 is by outlet region
It is divided into two parts, can be carried out by setting of the secondary liquid distributor 8 to the first gas-liquid filter net 3 and the second gas-liquid filter net 9
It is fixed, the stability of the first gas-liquid filter net 3 and the setting structure of the second gas-liquid filter net 9 is improved, and make the first gas-liquid filter net 3
Setting and the region division of evaporation tube 5 with the second gas-liquid filter net 9 match.
Preferably, secondary liquid distributor 8 is located at the part in outlet region and is provided with the 3rd gas-liquid filter net 10, secondary liquid distributor
8 both sides are fixedly connected with the madial wall of housing 11.The structure enters secondary liquid distributor 8 of the prior art with gas-liquid filter net
Row effectively combines, and the edge of the 3rd gas-liquid filter net 10 of secondary liquid distributor 8 after improvement, increases directly with the firm welding of housing 11
The strong intensity and stability of the secondary structure of liquid distributor 8.The 3rd gas-liquid filter net 10 is used as middle one of gas-liquid filter net simultaneously
Defence line, gas liquid separating function can be effectively played, and structure is from processing, manufacture angle is more reasonable, is physically easier to perform.Preferably,
The mesh density of 3rd gas-liquid filter net 10 is more than the mesh density of the second gas-liquid filter net 9, and is less than the first gas-liquid filter net 3
Mesh density.
Preferably, inlet 1 is located at the top of downward film evaporator, and gas outlet 2 is two, and two gas outlets 2 are with process
Longitudinal midplane of the center line of inlet 1 is symmetrical arranged for minute surface.Double air vent structure makes outlet evenly, flow of fluid shape
State is more stable, it is possible to increase outlet efficiency.
Certainly, above is preferred embodiment of the present utility model.It should be pointed out that the ordinary skill for the art
For personnel, on the premise of the utility model general principle is not departed from, some improvements and modifications can also be made, these improvement
The scope of protection of the utility model is also considered as with retouching.
Claims (12)
- A kind of 1. downward film evaporator, it is characterised in that including inlet (1) and gas outlet (2), the inlet (1) and institute State gas outlet (2) to shift to install, gas outlet (2) place is provided with the first gas-liquid filter net (3).
- 2. downward film evaporator according to claim 1, it is characterised in that the downward film evaporator also includes being arranged on Liquid distributor (4) at inlet (1) place and the evaporation tube (5) being arranged on below a liquid distributor (4).
- 3. downward film evaporator according to claim 2 a, it is characterised in that liquid distributor (4) and the evaporation Knockout (6) is additionally provided between pipe (5), the knockout (6) has the spray hole (7) towards the evaporation tube (5), described Spray hole (7) is gradually reduced along the direction section close to the evaporation tube (5).
- 4. downward film evaporator according to claim 3, it is characterised in that the spray hole (7) is conical bore.
- 5. downward film evaporator according to claim 3, it is characterised in that the knockout (6) is ripple type.
- 6. downward film evaporator according to claim 5, it is characterised in that the spray hole (7) is located at the ripple type At the trough of knockout (6).
- 7. downward film evaporator according to claim 2, it is characterised in that the evaporation tube (5) is divided into Liang Ge areas up and down Domain, secondary liquid distributor (8) is additionally provided between the evaporation tube (5) in upper and lower two regions.
- 8. downward film evaporator according to claim 7, it is characterised in that the downward film evaporator also includes housing (11) orifice plate (12) and in the housing (11), the orifice plate (12) are engaged with the housing (11), surround outlet Region, first gas-liquid filter net (3) are arranged on the outlet region, and the gas outlet (2) is communicated to the outlet region.
- 9. downward film evaporator according to claim 8, it is characterised in that also include positioned at described in the outlet region The second gas-liquid filter net (9) below first gas-liquid filter net (3), the mesh density of second gas-liquid filter net (9) are less than The mesh density of first gas-liquid filter net (3).
- 10. downward film evaporator according to claim 9, it is characterised in that the secondary liquid distributor (8) extends to described Outlet region, and the outlet region is divided into two parts, first gas-liquid filter net (3) up and down and is located at the outlet The top in region, second gas-liquid filter net (9) are located at the bottom in the outlet region.
- 11. downward film evaporator according to claim 10, it is characterised in that the secondary liquid distributor (8) is positioned at described The part in outlet region is provided with the 3rd gas-liquid filter net (10), both sides and the housing (11) of the secondary liquid distributor (8) Madial wall be fixedly connected.
- 12. downward film evaporator according to claim 1, it is characterised in that the inlet (1) is located at the falling film type The top of evaporator, the gas outlet (2) are two, and two gas outlets (2) are with by the center line of the inlet (1) Longitudinal midplane be symmetrical arranged for minute surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720490193.2U CN206890924U (en) | 2017-05-04 | 2017-05-04 | Downward film evaporator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720490193.2U CN206890924U (en) | 2017-05-04 | 2017-05-04 | Downward film evaporator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206890924U true CN206890924U (en) | 2018-01-16 |
Family
ID=61341432
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720490193.2U Active CN206890924U (en) | 2017-05-04 | 2017-05-04 | Downward film evaporator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206890924U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107101421A (en) * | 2017-05-04 | 2017-08-29 | 珠海格力电器股份有限公司 | Downward film evaporator |
-
2017
- 2017-05-04 CN CN201720490193.2U patent/CN206890924U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107101421A (en) * | 2017-05-04 | 2017-08-29 | 珠海格力电器股份有限公司 | Downward film evaporator |
| CN107101421B (en) * | 2017-05-04 | 2023-09-08 | 珠海格力电器股份有限公司 | Falling film evaporator |
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