CN105783347A - Refrigerating fluid distributor for falling film evaporator - Google Patents
Refrigerating fluid distributor for falling film evaporator Download PDFInfo
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- CN105783347A CN105783347A CN201410783401.9A CN201410783401A CN105783347A CN 105783347 A CN105783347 A CN 105783347A CN 201410783401 A CN201410783401 A CN 201410783401A CN 105783347 A CN105783347 A CN 105783347A
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Abstract
The invention provides a refrigerating fluid distributor for a falling film evaporator and the falling film evaporator adopting the refrigerating fluid distributor. The refrigerating fluid distributor comprises a spraying pipe, and the spraying pipe comprises a connector, a hollow pipe body, side sealing plates and a plurality of spraying openings. The connector is located in the middle, in the axial direction, of the hollow pipe body and used for guiding in refrigerating fluid. The side sealing plates are located at the two ends, in the axial direction, of the hollow pipe body and used for sealing the hollow pipe body. The multiple spraying openings for spraying the refrigerating fluid are formed in the bottom of the hollow pipe body and distributed in the axial direction of the hollow pipe body at intervals. The total area of the spraying openings in the positions, with the per unit length, of the axial direction of the hollow pipe body is gradually increased from the middle of the hollow pipe body to the two ends in the axial direction of the hollow pipe body.
Description
Technical field
The present invention relates to refrigerant distributor, be specifically related to a kind of downward film evaporator refrigerant distributor.
Background technology
Shell and tube exchanger is widely used in refrigerating and air conditioning industry, particularly in Large steam compressor bank.It is applied to the shell and tube evaporator on large-size water-cooling unit at present, generally has direct-expansion type (dry-expansion), full-liquid type (flooded) and falling film type (fallingfilm) three kinds.Direct-expansion type evaporator refrigerant evaporates inside pipe, and chilled water is cooled outside pipe.Full-liquid type and downward film evaporator, chilled water is cooled inside pipe, and cold-producing medium evaporates outside pipe.The heat exchanger tube tube bank of flooded evaporator can often drown out in refrigerant liquid to realize cold-producing medium evaporation, and downward film evaporator generally has refrigerant distributor at refrigerant inlet, cold-producing medium is evenly distributed to heat exchanger tube surface by refrigerant distributor, forms liquid film and is evaporated.Compared with flooded evaporator, the heat exchanger tube of falling film evaporator need not be immersed in liquid pool, and the impact of gravity head is negligible.Falling film evaporator make use of the thin film evaporation mechanism on heat exchanger tube surface, and its heat transfer efficiency is higher, and refrigerant charge is less, thus becomes the study hotspot of refrigerating and air conditioning industry in recent years.
Normally entering the refrigerant condition in falling film evaporator refrigerant distributor is gas-liquid two-phase, and the uniformity that cold-producing medium distributes between each heat exchanger tube of vaporizer governs the performance of vaporizer and unit.If two phase refrigerant is not evenly distributed on falling film evaporator heat-exchanging tube bundle, to cause that a part of heat exchanger tube cold-producing medium quantity delivered is excessive, and another part heat exchanger tube cold-producing medium quantity delivered is not enough, " dry spot " phenomenon occurs so that falling film evaporator entirety heat transfer property reduces.
CN103673420A discloses a kind of downward film evaporator refrigerant distributor, as shown in Figure 1a.Wherein 101 is shower, has the mouth spray that a series of cross-sectional area is equal bottom shower.Fig. 1 b is the shower side Local map that edge looks over B direction shown in Fig. 1 a.As shown in Figure 1 b, the interval S between each mouth spray 103 is equal.The advantage of this allotter is simple in construction, low cost of manufacture, but poor along heat exchanger axial cold-producing medium distributing uniformity, relatively big near middle inlet 102 position cold-producing medium spray flux, extends from centre to both sides vertically, and cold-producing medium spray flux gradually decreases.The actual relation between cold-producing medium spray flux and mouth spray axial location is as illustrated in figure 1 c.
The device of the uneven problem of downward film evaporator refrigerant distributor distribution in prior art is can solve the problem that accordingly, it would be desirable to a kind of.
Summary of the invention
nullFor the problem solving the falling film evaporator entirety heat transfer property reduction caused owing to cold-producing medium distribution is uneven existed in current falling film evaporator refrigerant distributor，Provide a kind of downward film evaporator refrigerant distributor，This refrigerant distributor includes: shower，Described shower includes interface，Hollow pipe，Side seal board and multiple mouth spray，Wherein，Described interface is positioned at the centre position of described hollow pipe axial direction，For importing cold-producing medium，Described side seal board is positioned at the two ends of described hollow pipe axial direction，For closing described hollow pipe，The bottom of described hollow pipe is provided with multiple mouth spray for spraying cold-producing medium，Described mouth spray is spaced apart along the axial direction of described hollow pipe，The gross area of the described mouth spray in described hollow pipe axial direction unit length is incremented by from the centre position of described hollow pipe along described hollow pipe axial direction to two ends.
Preferably, the height of described mouth spray is incremented by with phase step type along described cold-producing medium shower axial direction from the centre position of described hollow pipe to the two ends of described hollow pipe or is incremented by a linear fashion.
Preferably, the spacing of described mouth spray is successively decreased with phase step type to the two ends of described hollow pipe along described cold-producing medium shower axial direction from the centre position of described hollow pipe or successively decreases in a linear fashion.
Preferably, the axial width of described mouth spray is along described cold-producing medium shower axial direction from the centre position of described hollow pipe to being incremented by with phase step type to the two ends of described hollow pipe or being incremented by a linear fashion.
Preferably, the radial width in vertical described cold-producing medium shower axially direction of described mouth spray is incremented by along described cold-producing medium shower axial direction from the centre position of described hollow pipe to the two ends of described hollow pipe.
Preferably, described hollow pipe actual internal area is incremented by along described cold-producing medium shower axial direction from the centre position of described hollow pipe to the two ends of described hollow pipe.
Preferably, homogenizing plate is set at described hollow tube, for described cold-producing medium is carried out uniform distribution.
Preferably, described homogenizing plate is at least one block of porous plate, the equal diameters in described hole, and the pitch of holes of described homogenizing plate is axially successively decreased from the centre position of described hollow pipe to the two ends of described hollow pipe along described cold-producing medium shower.
Preferably, described homogenizing plate is at least one block of porous plate, and the diameter in the hole of described homogenizing plate is incremented by from the centre position of described hollow pipe to the two ends of described hollow pipe.
Preferably, described homogenizing plate is at least one piece of slotted-plate, and the circulation area of the groove of described slotted-plate is axially incremented by from the centre position of described hollow pipe to the two ends of described hollow pipe along described cold-producing medium shower.
Preferably, described refrigerant distributor, also include inlet tube and liquid barrier, wherein,
Described inlet tube is communicated with described cold-producing medium shower by described interface, flows into described cold-producing medium shower for cold-producing medium；Described liquid barrier is positioned at the both sides of described cold-producing medium shower and extends to the obliquely downward of described cold-producing medium shower both sides.
A kind of downward film evaporator, has the refrigerant distributor for downward film evaporator, it is characterised in that the described refrigerant distributor for downward film evaporator is the refrigerant distributor for downward film evaporator described above.
Accompanying drawing explanation
With reference to the accompanying drawing enclosed, the more purpose of the present invention, function and advantage will be illustrated by the described below of embodiment of the present invention, wherein:
Fig. 1 a diagrammatically illustrates the structural representation of the refrigerant distributor for downward film evaporator of the prior art.
Fig. 1 b diagrammatically illustrates the characteristic size schematic diagram of the mouth spray of refrigerant distributor of the prior art.
Fig. 1 c diagrammatically illustrates the scattergram of the cold-producing medium spray flux of refrigerant distributor of the prior art and the relation of mouth spray axial location.
Fig. 2 a diagrammatically illustrates the structural representation of the first detailed description of the invention of downward film evaporator refrigerant distributor of the present invention.
Fig. 2 b diagrammatically illustrates shower 203 structural representation of the downward film evaporator refrigerant distributor of the present invention.
Fig. 2 c diagrammatically illustrates the characteristic size schematic diagram of the mouth spray 204 of the downward film evaporator refrigerant distributor of the present invention.
Fig. 2 d and Fig. 2 e diagrammatically illustrates the schematic diagram of the first embodiment of the mouth spray 204 of the refrigerant distributor of the present invention respectively.
Fig. 2 f is the schematic diagram of the second embodiment of the mouth spray 204 of the refrigerant distributor of the present invention.
Fig. 2 g is the schematic diagram of the 3rd embodiment of the mouth spray 204 of the refrigerant distributor of the present invention.
Fig. 2 h is the schematic diagram of the 4th embodiment of the mouth spray 204 of the refrigerant distributor of the present invention.
Fig. 3 a diagrammatically illustrates the structural representation of the second detailed description of the invention of downward film evaporator refrigerant distributor of the present invention.
Fig. 3 b is cold-producing medium shower 303 structural representation of the downward film evaporator refrigerant distributor of the present invention.
Fig. 3 c is the schematic cross-section along B direction.
Fig. 4 a diagrammatically illustrates structure and the assembling form thereof of the 3rd detailed description of the invention of the downward film evaporator refrigerant distributor of the present invention.
Fig. 4 b is cold-producing medium shower 403 structural representation of the downward film evaporator refrigerant distributor of the present invention.
Fig. 4 c is the schematic diagram of the first embodiment of the homogenizing plate 408 of the refrigerant distributor of the present invention.
Fig. 4 d is the schematic diagram of the second embodiment of the homogenizing plate 408 of the refrigerant distributor of the present invention.
Fig. 4 e is the schematic diagram of the 3rd embodiment of the homogenizing plate 408 of the refrigerant distributor of the present invention.
Detailed description of the invention
To be illustrated by reference one exemplary embodiment, the purpose of the present invention and function and the method for realizing these purposes and function.But, the present invention is not limited to one exemplary embodiment disclosed below；By multi-form, it can be realized.The essence of description is only the detail helping the various equivalent modifications Integrated Understanding present invention.
Should be appreciated that aforementioned description substantially is exemplary illustration and explanation with follow-up detailed description, the restriction to the claimed content of the present invention should not be used as.
Hereinafter, embodiments of the invention will be described with reference to the drawings.In the accompanying drawings, identical accompanying drawing labelling represents same or similar parts or same or similar step.
The present invention is by improving refrigerant distributor of the prior art so that cold-producing medium uniformly sprays through the plurality of mouth spray after the flowing of both sides along the axial of described hollow pipe.Thus cold-producing medium can evenly be assigned on downward film evaporator heat-exchanging tube bundle, give full play to the advantage of falling film evaporator.
Fig. 2 a diagrammatically illustrates structure and the assembling form thereof of the first detailed description of the invention of the downward film evaporator refrigerant distributor of the present invention.Described refrigerant distributor 200 includes: inlet tube 201, liquid barrier 202 and cold-producing medium shower 203.Inlet tube 201 is arranged at the centre position in described cold-producing medium shower 203 axial direction (i.e. A direction shown in Fig. 2 a), communicates with cold-producing medium shower 203, flows into cold-producing medium shower 203 for two-phase refrigerant mixture.Liquid barrier 202 is arranged on the both sides of described cold-producing medium shower 203 and extends to the obliquely downward of described cold-producing medium shower 203 both sides, to prevent the two-phase refrigerant mixture from cold-producing medium shower 203 ejection to be directly entered compressor suction duct (not shown) without heat exchanger tube (not shown).Cold-producing medium shower 203 is the hollow pipe of a specific sectional shape, is arranged in above heat exchanger tube tube bank (not shown), and it is axially axially consistent with heat exchanger tube.Multiple mouth spray 204 is had in the axial direction bottom cold-producing medium shower 203, after two-phase refrigerant mixture enters cold-producing medium shower 203, along its process axially flowed, outside can be sprayed from each mouth spray 204 uniformly, namely spray on the heat exchanger tube of lower section.
Fig. 2 b is shower 203 structural representation of the downward film evaporator refrigerant distributor of the present invention, and shower 203 includes: mouth spray 204, interface 205, hollow pipe 206 and side seal board 207.Mouth spray 204 is opened in the bottom of described hollow pipe 206 and spaced apart along hollow pipe axis direction；Interface 205 is positioned at the centre position of described hollow pipe 206 axial direction, is used for importing cold-producing medium.Cold-producing medium enters hollow pipe 206 through inlet tube 201, and the length direction along hollow pipe 206 flows, and flows out through each mouth spray 204.Side seal board 207 is positioned at the two ends of described hollow pipe 206 axial direction, is used for closing described hollow pipe 206.
Fig. 2 c diagrammatically illustrates the characteristic size schematic diagram of the mouth spray 204 of the downward film evaporator refrigerant distributor of the present invention.Mouth spray 204 is a series of mouth sprays being distributed in bottom shower, and its characteristic size includes mouth spray height h, mouth spray distance s, mouth spray axial width t, and mouth spray radial width w.
Fig. 2 d and Fig. 2 e is the schematic diagram of the first embodiment of the mouth spray 204 of the refrigerant distributor of the present invention.The mouth spray height h of mouth spray 204 axially changes from the centre position (i.e. interface 205 position) of shower 203 to both sides along cold-producing medium shower 203.According to one embodiment of present invention, as shown in Figure 2 d, the height that the mode highly increased is several mouth sprays every is incremented by with h1, h2, h3...hx phase step type respectively.According to another implementation of the invention, as shown in Figure 2 e, increase in the way of each mouth spray respective heights h progressively linear increment (h=ax+b) from shower 203 center to both sides for mouth spray 204.Adopting this kind of mouth spray, total circulation area of the mouth spray in hollow pipe axial direction unit length is gradually increased from the centre position of hollow pipe 206 to both sides, such that it is able to realize than prior art evenly cold-producing medium distribution.
Fig. 2 f is the schematic diagram of the second embodiment of the mouth spray 204 of the refrigerant distributor of the present invention.Between each mouth spray of mouth spray 204, distance s has unequal-interval vertically.According to one embodiment of present invention, the position in the middle of mouth spray distance cold-producing medium shower 203 is more near, and the spacing between adjacent mouth spray is more big, and distance s is axially successively decreased with phase step type to both sides along cold-producing medium shower 203 or successively decreases in a linear fashion.Adopting this kind of mouth spray, mouth spray quantity and total circulation area of mouth spray in unit length are gradually increased from the centre position of hollow pipe 206 to both sides, such that it is able to realize than prior art evenly cold-producing medium distribution.
Fig. 2 g is the schematic diagram of the 3rd embodiment of the mouth spray 204 of the refrigerant distributor of the present invention.The mouth spray axial width t of mouth spray 204 axially changes along cold-producing medium shower 203.According to one embodiment of present invention, middle mouth spray width is less, is incremented by both sides vertically.Adopting this kind of mouth spray, total circulation area of the mouth spray in unit length is successively decreased with phase step type from the centre position of hollow pipe 206 to both sides or is gradually increased in a linear fashion, such that it is able to realize than prior art evenly cold-producing medium distribution.
Fig. 2 h is the schematic diagram of the 4th embodiment of the mouth spray 204 of the refrigerant distributor of the present invention.The radial width w in vertical described cold-producing medium shower axially direction of the mouth spray of mouth spray 204 changes vertically.According to one embodiment of present invention, mouth spray 204 is more near apart from the position in the middle of cold-producing medium shower 203, and the width of mouth spray bore is more little, and caliber size is axially incremented by both sides along cold-producing medium shower 203.Shower 203 cross sectional shape, middle little both sides are big, and top view is seen in hyperbolical.Adopting this kind of mouth spray, the total circulation area of mouth spray in unit length is gradually increased from the centre position of hollow pipe 206 to both sides, such that it is able to realize than prior art evenly cold-producing medium distribution.
Fig. 3 a diagrammatically illustrates structure and the assembling form thereof of the second detailed description of the invention of the downward film evaporator refrigerant distributor of the present invention.Described refrigerant distributor 300 includes: inlet tube 301, liquid barrier 302 and cold-producing medium shower 303.Inlet tube 301 is arranged at the centre position in described cold-producing medium shower 303 axial direction (i.e. A direction shown in Fig. 3 a), communicates with cold-producing medium shower 303, flows into cold-producing medium shower 303 for two-phase refrigerant mixture.Liquid barrier 302 is arranged on the both sides of described cold-producing medium shower 303 and extends to the obliquely downward of described cold-producing medium shower 303 both sides, to prevent the two-phase refrigerant mixture from cold-producing medium shower 303 ejection to be directly entered compressor suction duct (not shown) without heat exchanger tube (not shown).Cold-producing medium shower 303 is the hollow pipe of a specific sectional shape, is arranged in heat exchanger tube tube bank top, and it is axially axially consistent with heat exchanger tube.Multiple mouth spray 304 is had in the axial direction bottom cold-producing medium shower 303, after two-phase refrigerant mixture enters cold-producing medium shower 303, along its process axially flowed, outside can be sprayed from each mouth spray 304 uniformly, namely spray on the heat exchanger tube of lower section.
Fig. 3 b is cold-producing medium shower 303 structural representation of the downward film evaporator refrigerant distributor of the present invention.Shower 303 includes mouth spray 304, interface 305, hollow pipe 306 and side seal board 307.Mouth spray 304 is opened in the bottom of described hollow pipe 306 and spaced apart along hollow pipe 306 axis direction；Interface 305 is positioned at the centre position of described hollow pipe 306 axial direction, is used for importing cold-producing medium.Cold-producing medium enters hollow pipe 306 through inlet tube 301, and the length direction along hollow pipe 306 flows, and flows out through each mouth spray 304.
Hollow pipe 306 is that middle low both sides are high, and front view (Fig. 3 c) sees in the shape of a saddle (i.e. B direction shown in Fig. 3 b).After cold-producing medium is entered hollow pipe 306 by interface 305, flow axially towards two ends, because actual internal area is gradually increased to both sides by centre, axial flow velocity is gradually lowered, the total circulation area of mouth spray in unit length is gradually increased from the centre position of hollow pipe 206 to both sides, thus make from mouth spray 304 flow out cold-producing medium be gradually increased, it is achieved than prior art evenly cold-producing medium distribution.
Fig. 4 a diagrammatically illustrates structure and the assembling form thereof of the 3rd detailed description of the invention of the downward film evaporator refrigerant distributor of the present invention.Described allotter 400 includes: inlet tube 401, liquid barrier 402 and cold-producing medium shower 403.Inlet tube 401 is arranged at the centre position in described cold-producing medium shower 403 axial direction (i.e. A direction shown in Fig. 4 a), communicates with cold-producing medium shower 403, flows into cold-producing medium shower 403 for two-phase refrigerant mixture.Liquid barrier 402 is arranged on the both sides of described cold-producing medium shower 403 and extends to the obliquely downward of described cold-producing medium shower 403 both sides, to prevent the two-phase refrigerant mixture from shower 403 ejection to be directly entered compressor suction duct (not shown) without heat exchanger tube (not shown).Cold-producing medium shower 403 is the hollow pipe of a specific sectional shape, is arranged in above heat exchanger tube tube bank (not shown), and it is axially axially consistent with heat exchanger tube.Bottom cold-producing medium shower 403, have multiple mouth spray 404 in the axial direction, after two-phase refrigerant mixture enters cold-producing medium shower 403, along its process axially flowed, can spray heat exchanger tube from each mouth spray 404 uniformly.
Fig. 4 b is cold-producing medium shower 403 structural representation of the downward film evaporator refrigerant distributor of the present invention.Described shower 403 includes mouth spray 404, interface 405, hollow pipe 406, side seal board 407, and at least one piece of homogenizing plate 408.Mouth spray 404 is opened in the bottom of described hollow pipe 406 and spaced apart along hollow pipe 406 axis direction；Interface 405 is positioned at the centre position of described hollow pipe 406 axial direction, is used for importing cold-producing medium.Cold-producing medium enters hollow pipe 406 through inlet tube 401, and the length direction along hollow pipe 406 flows, and carries out original allocation through homogenizing plate 408, and flows out through each mouth spray 404.
Homogenizing plate 408 is arranged on described hollow pipe 406 inside and is parallel to the upper surface of described hollow pipe 406, it is possible to the cold-producing medium entering cold-producing medium shower 403 is carried out original allocation, makes the distributing uniformity of cold-producing medium shower 403 improve.
Fig. 4 c is the schematic diagram of the first embodiment of the homogenizing plate 408 of the refrigerant distributor of the present invention.Homogenizing plate 408 is a porous plate, the equal diameters in hole, it is parallel to the pitch of holes L that described cold-producing medium shower is axially located on same straight line axially to successively decrease from the centre position of described hollow pipe 406 to the two ends of described hollow pipe 406 along described cold-producing medium shower 403, i.e. L1> L2> ... > Ln。
Fig. 4 d is the schematic diagram of the second embodiment of the homogenizing plate 408 of the refrigerant distributor of the present invention.Homogenizing plate 408 is a porous plate, and the circulation area being parallel to the hole that cold-producing medium shower 403 is axially located on same straight line is incremented by from the centre position of described hollow pipe 406 to the two ends of described hollow pipe 406.
In Fig. 4 c and Fig. 4 d, the perforate of porous plate is not limited to circular hole, elliptical aperture, square opening, and porous plate can also be slotted-plate.
Fig. 4 e is the schematic diagram of the 3rd embodiment of the homogenizing plate 408 of the refrigerant distributor of the present invention.Homogenizing plate 408 is a slotted-plate, fluting radial width H is axially gradually increased from interface 405 to the both sides of hollow pipe 406 along described cold-producing medium shower 403, and the circulation area of the groove of slotted-plate is axially incremented by from the centre position of described hollow pipe 406 to the two ends of described hollow pipe 406 along described cold-producing medium shower 403.
By the cold-producing medium shower for downward film evaporator refrigerant distributor of the present invention, refrigerant distributor of the prior art is improved so that cold-producing medium uniformly sprays through the plurality of mouth spray after flowing along the axis direction of described hollow pipe to both sides.Thus cold-producing medium can evenly be assigned on downward film evaporator heat-exchanging tube bundle, give full play to the advantage of falling film evaporator.
In conjunction with explanation and the practice of the present invention disclosed here, other embodiments of the present invention are all easy to expect and understand for those skilled in the art.Illustrating and embodiment is regarded only as and is illustrative of, true scope and the purport of the present invention are all defined in the claims.
Claims (12)
1. a downward film evaporator refrigerant distributor, this refrigerant distributor includes: shower, and described shower includes interface, hollow pipe, side seal board and multiple mouth spray, wherein,
Described interface is positioned at the centre position of described hollow pipe axial direction, is used for importing cold-producing medium,
Described side seal board is positioned at the two ends of described hollow pipe axial direction, is used for closing described hollow pipe, it is characterised in that
The bottom of described hollow pipe is provided with multiple mouth spray for spraying cold-producing medium, described mouth spray is spaced apart along the axial direction of described hollow pipe, and total circulation area of the described mouth spray in described hollow pipe axial direction unit length is incremented by from the centre position of described hollow pipe along described hollow pipe axial direction to two ends.
2. refrigerant distributor according to claim 1, the height of wherein said mouth spray is incremented by with phase step type along described cold-producing medium shower axial direction from the centre position of described hollow pipe to the two ends of described hollow pipe or is incremented by a linear fashion.
3. refrigerant distributor according to claim 1, the spacing of wherein said mouth spray is successively decreased with phase step type to the two ends of described hollow pipe along described cold-producing medium shower axial direction from the centre position of described hollow pipe or successively decreases in a linear fashion.
4. refrigerant distributor according to claim 1, the axial width of wherein said mouth spray is along described cold-producing medium shower axial direction from the centre position of described hollow pipe to being incremented by with phase step type to the two ends of described hollow pipe or being incremented by a linear fashion.
5. refrigerant distributor according to claim 1, the radial width in vertical described cold-producing medium shower axially direction of wherein said mouth spray is incremented by along described cold-producing medium shower axial direction from the centre position of described hollow pipe to the two ends of described hollow pipe.
6. refrigerant distributor according to claim 1, wherein said hollow pipe actual internal area is incremented by along described cold-producing medium shower axial direction from the centre position of described hollow pipe to the two ends of described hollow pipe.
7. refrigerant distributor according to claim 1, wherein arranges homogenizing plate at described hollow tube, for cold-producing medium is carried out uniform distribution.
8. refrigerant distributor according to claim 7, described homogenizing plate is at least one block of porous plate, the equal diameters in described hole, the pitch of holes of described homogenizing plate is axially successively decreased from the centre position of described hollow pipe to the two ends of described hollow pipe along described cold-producing medium shower.
9. refrigerant distributor according to claim 7, described homogenizing plate is at least one block of porous plate, and the circulation area in the hole of described homogenizing plate is incremented by from the centre position of described hollow pipe to the two ends of described hollow pipe.
10. refrigerant distributor according to claim 7, described homogenizing plate is at least one piece of slotted-plate, and the circulation area of the groove of described slotted-plate is axially incremented by from the centre position of described hollow pipe to the two ends of described hollow pipe along described cold-producing medium shower.
11. refrigerant distributor according to claim 1, also include inlet tube and liquid barrier, wherein,
Described inlet tube is communicated with described cold-producing medium shower by described interface, flows into described cold-producing medium shower for cold-producing medium；
Described liquid barrier is positioned at the both sides of described cold-producing medium shower and extends to the obliquely downward of described cold-producing medium shower both sides.
12. a downward film evaporator, there is the refrigerant distributor for downward film evaporator, it is characterised in that the described refrigerant distributor for downward film evaporator is the refrigerant distributor for downward film evaporator according to any one of claim 1 to 11.
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| CN201410783401.9A CN105783347B (en) | 2014-12-16 | 2014-12-16 | Downward film evaporator refrigerant distributor |
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| CN201410783401.9A CN105783347B (en) | 2014-12-16 | 2014-12-16 | Downward film evaporator refrigerant distributor |
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| WO2020034937A1 (en) * | 2018-08-14 | 2020-02-20 | 约克（无锡）空调冷冻设备有限公司 | Falling film evaporator |
| CN110822772A (en) * | 2018-08-14 | 2020-02-21 | 约克（无锡）空调冷冻设备有限公司 | Falling film evaporator |
| CN111213022A (en) * | 2017-10-20 | 2020-05-29 | 江森自控科技公司 | Falling film heat exchanger |
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| CN110822772A (en) * | 2018-08-14 | 2020-02-21 | 约克（无锡）空调冷冻设备有限公司 | Falling film evaporator |
| JP2021536559A (en) * | 2018-08-14 | 2021-12-27 | ヨーク （ウーシー） エアー・コンディショニング・アンド・リフリジェレーション・カンパニー，リミテッド | Flowing liquid film type evaporator |
| US11644223B2 (en) * | 2018-08-14 | 2023-05-09 | Johnson Controls Tyco IP Holdings LLP | Falling film evaporator |
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| CN105783347B (en) | 2018-07-27 |
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