CN205014705U - Refrigerant equipartition device and falling film evaporator and cooling water set - Google Patents
Refrigerant equipartition device and falling film evaporator and cooling water set Download PDFInfo
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- CN205014705U CN205014705U CN201520690316.8U CN201520690316U CN205014705U CN 205014705 U CN205014705 U CN 205014705U CN 201520690316 U CN201520690316 U CN 201520690316U CN 205014705 U CN205014705 U CN 205014705U
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Abstract
The utility model provides a refrigerant equipartition device and falling film evaporator and cooling water set, wherein refrigerant equipartition device is including the apron, first equal liquid board and the equal liquid board of second, a cover plate, first equal liquid board, the equal liquid board of second down sets gradually from last, be equipped with at least one inlet on the apron, the apron is the hem structure, the week side of apron sets up the hem, all sides of first equal liquid board and all sides of the equal liquid board of second also are provided with the hem, the hem of first equal liquid board is arranged in the hem of apron, the hem of the equal liquid board of second is arranged in outside the hem of apron, form first cavity between apron and the first equal liquid board, form the second cavity between first equal liquid board and the equal liquid board of second. Still relate to a falling film evaporator and cooling water set. The utility model discloses a refrigerant equipartition device and falling film evaporator and cooling water set, refrigerant equipartition device adopts two cavity configurations, and the part is small in quantity, and the structure is simpler, and it is more convenient to assemble, and the machining precision requires lowly, and the cost is cheaper, is fit for using in batches on the cooling water set.
Description
Technical field
The utility model relates to refrigeration technology field, particularly relates to a kind of cold-producing medium even distribution device and downward film evaporator and handpiece Water Chilling Units.
Background technology
Occurred that a kind of evaporimeter of falling film type form obtained extensive concern with its efficient performance in the last few years, this evaporimeter is widely used in the industry such as desalinization, chemical industry.In refrigeration unit, part producer in industry, is also had to use in trial.Compared with the dry evaporator of routine and flooded evaporator, downward film evaporator has following advantage: 1) coefficient of heat transfer is high; 2) reduce refrigerant perfused amount and be about 20%-40%; 3) unit oil return efficiency is high.But above advantage is all be based upon on the uniform basis of distribution of refrigerant.Usual refrigeration unit can adopt single inlet, and be placed in the middle of even distribution device, so just there will be following problem: it is not enough levels that even distribution device is placed along length or width, or because processing reason causes the overall out-of-flatness of even distribution device or distortion, or device is installed can not ensure level, one of them or several reason all can cause cold-producing medium cannot flow to device two ends uniformly, when this out-of-level, out-of-flatness or distortion more serious time, even there will be cold-producing medium and cannot flow and arrive relatively high one end.Heat-exchanging tube bundle below even distribution device will be caused like this along in length and width both direction, and the upper liquid refrigerant of part tube bank is too much, and the upper liquid refrigerant undersupply of another part tube bank.The heat exchanger tube of refrigerant feed liquid deficiency will be formed " dry combustion method " phenomenon, cause the utilization rate of heat exchanger tube significantly to reduce, finally have impact on the performance of unit.Therefore, existing even distribution device is even in order to realize distribution of refrigerant, and the structure of even distribution device is often comparatively complicated, and machining accuracy, installation requirement are comparatively strict.Because of factor impacts such as welding, raw material, assemblings, the working (machining) efficiency of existing even distribution device and downward film evaporator is lower, assembling difficulty.
Utility model content
In view of the present situation of prior art, the purpose of this utility model is to provide a kind of cold-producing medium even distribution device and downward film evaporator and handpiece Water Chilling Units, cold-producing medium even distribution device and downward film evaporator and handpiece Water Chilling Units, cold-producing medium even distribution device adopts two cavity configurations, and number of parts is few, structure is simpler, assemble more convenient, requirement on machining accuracy is low, and cost is cheaper, be adapted at batch in handpiece Water Chilling Units to use, effectively improve the efficiency of assembling of cold-producing medium even distribution device; Structure is compacter, regulates liquid uniform refrigerant to distribute by chamber own volume, and adaptive ability is stronger, solves the problem that the assembling of existing even distribution device is difficult, efficiency is not high.For achieving the above object, the technical solution of the utility model is as follows:
A kind of cold-producing medium even distribution device, be applied in downward film evaporator, described cold-producing medium even distribution device comprises cover plate, first liquid-distributing plate and the second liquid-distributing plate, described cover plate, described first liquid-distributing plate, described second liquid-distributing plate sets gradually from top to bottom, described cover plate is provided with at least one inlet, described cover plate is folded edges, all sides of described cover plate arrange flanging, all sides of described first liquid-distributing plate and all sides of described second liquid-distributing plate are also provided with flanging, the flanging of described first liquid-distributing plate is placed in the flanging of described cover plate, the flanging of described second liquid-distributing plate is placed in outside the flanging of described cover plate, the first cavity is formed between described cover plate and described first liquid-distributing plate, the second cavity is formed between described first liquid-distributing plate and described second liquid-distributing plate.
Wherein in an embodiment, described cover plate length or/and width described flanging on be provided with the first through hole; The flanging of described first liquid-distributing plate is provided with second through hole corresponding with described first through hole; The flanging of described second liquid-distributing plate is provided with the third through-hole corresponding with described first through hole; Described first through hole is connected by immobilising device with described second through hole, and described first through hole is also connected by immobilising device with described third through-hole.
Wherein in an embodiment, described immobilising device is screw, bolt, rivet or pin.
Wherein in an embodiment, described first through hole is circular hole, slotted hole, square hole or slotted eye, and described second through hole and described third through-hole are circular hole, slotted hole, square hole or slotted eye.
Wherein in an embodiment, on the length direction of described cover plate, multiple described first through hole is two rows arrangements, and described first through hole being positioned at row is slotted eye, and described first through hole being positioned at lower row is circular port.
Wherein in an embodiment, be positioned at multiple described first through hole of row, described in adjacent two, the pitch of holes of the first through hole is 5mm-560mm; Be positioned at multiple described first through hole of lower row, described in adjacent two, the pitch of holes of the first through hole is 5mm-560mm.
Wherein in an embodiment, the thickness of described cover plate is 0.8mm-3.5mm, and the thickness of described first liquid-distributing plate is 0.8mm-3.5mm, and the thickness of described second liquid-distributing plate is 0.8mm-3.5mm.
Wherein in an embodiment, described first liquid-distributing plate also arranges multiple first liquid pass hole; Described second liquid-distributing plate arranges multiple groove in their length direction, and multiple described indention parallel is arranged, and each described groove is provided with multiple second liquid pass hole.
Wherein in an embodiment, the quantity of the first row heat exchanger tube that the quantity of described groove is intrafascicular with the heat exchange tube of described downward film evaporator is identical, the first row heat exchanger tube one_to_one corresponding that the heat exchange tube of multiple described groove in the vertical directions and described downward film evaporator is intrafascicular, the spacing of adjacent two described grooves is identical with the center distance of described first row heat exchanger tube.
Wherein in an embodiment, the longitudinal section of described groove is V-type or arc, and when described groove is V-type groove, the interior angle of described V-type groove is 60 °-150 °.
Wherein in an embodiment, described second liquid-distributing plate all sides in their length direction arrange flanging, and width is open; Described cover plate flanging height is in the direction of the width a little more than the flanging height of described cover plate at length direction.
Wherein in an embodiment, the flanging angle of described cover plate is 80 °-100 °, and the flanging angle of described first liquid-distributing plate is 80 °-100 °, and the aperture of described first liquid pass hole is 2.5mm-8mm; Multiple described first liquid pass hole spread pattern is rectangle or rhombus, when multiple described first liquid pass hole spread pattern is rectangle, horizontal spacing 8mm-62mm on line direction between adjacent two described first liquid pass holes, the longitudinal pitch on file direction between adjacent two described first liquid pass holes is 6mm-42mm.
Wherein in an embodiment, adopt matched in clearance between described first liquid-distributing plate and described cover plate, monolateral gap is not more than 0.5mm, and also adopt matched in clearance to assemble between described second liquid-distributing plate and described cover plate, monolateral gap is not more than 0.5mm.
Also relate to a kind of downward film evaporator, comprise the even distribution device described in above-mentioned arbitrary technical scheme.
Also relate to a kind of handpiece Water Chilling Units, comprise the described even distribution device of downward film evaporator and above-mentioned arbitrary technical scheme, described even distribution device is arranged in described downward film evaporator.
The beneficial effects of the utility model are:
Cold-producing medium even distribution device of the present utility model and downward film evaporator and handpiece Water Chilling Units, cold-producing medium even distribution device adopts two cavity configurations, number of parts is few, structure is simpler, assemble more convenient, requirement on machining accuracy is low, and cost is cheaper, be adapted at batch in handpiece Water Chilling Units to use, effectively improve the efficiency of assembling of cold-producing medium even distribution device.Structure is compacter, regulates liquid uniform refrigerant to distribute by chamber own volume, and adaptive ability is stronger, solves the problem that the assembling of existing even distribution device is difficult, efficiency is not high.Cover plate, the first liquid-distributing plate, the second liquid-distributing plate are connected by immobilising device, avoiding because welding the distortion caused, also can reduce the process-cycle simultaneously.Can drip accurately or be ejected into by the cold-producing medium of even distribution device on heat exchanger tube, realize high efficiency heat exchange, thus improve unit performance.Meet be uniformly distributed cold-producing medium while, utilize heat exchanger tube to greatest extent under making limited heat exchange area, improve heat exchange efficiency.
Accompanying drawing explanation
Fig. 1 is the decomposing schematic representation of cold-producing medium even distribution device one embodiment of the present utility model;
Fig. 2 is the cross-section cutaway view of the even distribution device one of cryogen shown in Fig. 1 embodiment;
Fig. 3 is for the even distribution device of cold-producing medium shown in Fig. 2 is at the cross-section cutaway view of another direction of observation;
Fig. 4 is the end sectional drawing of cold-producing medium even distribution device one embodiment of the present utility model;
Fig. 5 is the connection diagram of cover plate, the first liquid-distributing plate, the second liquid-distributing plate.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, cold-producing medium even distribution device of the present utility model and downward film evaporator and handpiece Water Chilling Units are further elaborated.Should be appreciated that specific embodiment described herein only for explaining the utility model, and be not used in restriction the utility model.
Referring to figs. 1 through Fig. 5, the cold-producing medium even distribution device of the utility model one embodiment, is applied in downward film evaporator, comprises cover plate 100, first liquid-distributing plate 200 and the second liquid-distributing plate 300.
Cover plate 100, first liquid-distributing plate 200, second liquid-distributing plate 300 sets gradually from top to bottom, and cover plate 100 is provided with at least one inlet 103, and cover plate 100 is folded edges, and all sides of cover plate 100 arrange flanging.
All sides of the first liquid-distributing plate 200 and all sides of the second liquid-distributing plate 300 are also provided with flanging, and the flanging of the first liquid-distributing plate 200 is placed in the flanging interior (inside flanging) of cover plate 100.The flanging of the second liquid-distributing plate 300 is placed in the flanging outer (outside flanging) of cover plate 100.
The first cavity 400 is formed between cover plate 100 and the first liquid-distributing plate 200.The second cavity 500 is formed between first liquid-distributing plate 200 and the second liquid-distributing plate 300.
Wherein, the thickness of cover plate 100 is 0.8mm-3.5mm, is preferably 2.0mm.The thickness of the first liquid-distributing plate 200 is 0.8mm-3.5mm, is preferably 2.0mm.The thickness of the second liquid-distributing plate 300 is 0.8mm-3.5mm, is preferably 2.0mm.
The flanging angle of cover plate 100 is 80 °-100 °, preferably 90 °.The flanging angle of the first liquid-distributing plate 200 is 80 °-100 °, preferably 90 °.The flanging angle of the second liquid-distributing plate 300 is 80 °-100 °, preferably 90 °.By calculating the volume of the first cavity 400 and the second cavity 500 to determine the flanging height of cover plate 100, first liquid-distributing plate 200 and the second liquid-distributing plate 300.
Matched in clearance can be adopted to assemble between the first liquid-distributing plate 200 and cover plate 100, monolateral gap is not more than 0.5mm, and matched in clearance also can be adopted between the second liquid-distributing plate 300 and cover plate 100 to assemble, and monolateral gap is not more than 0.5mm.Be convenient to assembling like this.
Cover plate 100 length or/and width described flanging on be provided with the first through hole 101.The flanging of the first liquid-distributing plate 200 is provided with second through hole 201 corresponding with the first through hole 101.The flanging of the second liquid-distributing plate 300 is provided with the third through-hole 301 corresponding with the first through hole 101.
First through hole 101 is connected by immobilising device 102 with the second through hole 201, and the first through hole 101 is also connected by immobilising device 102 with third through-hole 301.Namely adopt immobilising device 102 first through hole 101 and the second through hole 201 to be connected and fixed, also adopt immobilising device 102 first through hole 101 and third through-hole 301 to be connected and fixed.Immobilising device 102 is screw, bolt, rivet or pin, preferred rivet.
Wherein, the first through hole 101, second through hole 201 and third through-hole 301 also can share an immobilising device 102, first through hole 101, second through hole 201 and third through-hole 301 and all to overlap setting.Also a few first through hole 101 and the second through hole 201 can be adopted to coincide (corresponding matching), and other first through hole 101 and third through-hole 301 coincide the set-up mode of (corresponding matching).
First through hole 101 is circular hole, slotted hole, square hole or slotted eye, and the second through hole 201 and third through-hole 301 are circular hole, slotted hole, square hole or slotted eye.Second through hole 201 and third through-hole 301 are preferably slotted hole.The setting of slotted hole is to reduce assembly precision, reduces the hole site precision on the flanging of cover plate 100, first liquid-distributing plate 200, second liquid-distributing plate 300, improves one integral piece assembling capacity.
As a kind of embodiment, on the length direction of cover plate 100, the arrangement in two rows of multiple first through holes 101, the first through hole 101 being positioned at row is slotted eye, and the first through hole 101 being positioned at lower row is circular port.
Be positioned at multiple first through holes 101 of row, the pitch of holes of two first adjacent through holes 101 is 5mm-560mm, preferred 125mm.Be positioned at multiple first through holes 101 of lower row, the pitch of holes of two first adjacent through holes 101 is 5mm-560mm, preferred 100mm.
First liquid-distributing plate 200 is also arranged multiple first liquid pass hole 202.The aperture of the first liquid pass hole 202 is 2.5mm-8mm, multiple first liquid pass hole 202 spread pattern is rectangle or rhombus, when multiple first liquid pass hole 202 spread pattern is rectangle, horizontal spacing 8mm-62mm on line direction between adjacent two described first liquid pass holes 202, the longitudinal pitch on file direction between adjacent two the first liquid pass holes 202 is 6mm-42mm.
Preferably, the second liquid-distributing plate 300 arranges multiple groove 302 in their length direction, and namely groove 302 is initial and terminate end for width, and groove 302 bearing of trend is length direction.
Multiple groove 302 be arranged in parallel, and each groove 302 is provided with multiple second liquid pass hole 303.The aperture of the second liquid pass hole 303 is 2.5mm-8mm; The spread pattern of multiple second liquid pass hole 303 is rectangle or rhombus, and when multiple second liquid pass hole 303 is arranged in rectangle, the horizontal spacing of adjacent two the second liquid pass holes 303 is 8mm-62mm, and the longitudinal pitch of adjacent two the second liquid pass holes 303 is 6mm-42mm.
The quantity of the first row heat exchanger tube that the quantity of groove 303 is intrafascicular with the heat exchange tube of described downward film evaporator is identical, the first row heat exchanger tube one_to_one corresponding that the heat exchange tube of multiple groove 303 in the vertical direction and described downward film evaporator is intrafascicular, the spacing of adjacent two grooves 303 is identical with the center distance of described first row heat exchanger tube.The spacing of adjacent two grooves 303 is identical with the center distance of first row heat exchanger tube, makes the cold-producing medium in groove 303 drip or be ejected into the intrafascicular first row heat exchanger tube surface of heat exchange tube from the second liquid pass hole 303.
The longitudinal section of groove 303 can be V-type or arc, and when groove 303 is V-type groove, the interior angle of described V-type groove is 60 °-150 °.
As a kind of embodiment, the second liquid-distributing plate 300 arranges flanging in their length direction, and width is open, and namely the second liquid-distributing plate 300 all sides in their length direction arrange flanging, and width is open does not arrange flanging.Cover plate 100 flanging height is in the direction of the width a little more than the flanging height of cover plate 100 at length direction.Preferably, cover plate 100 flanging aspect ratio cover plate 100 is in the direction of the width at the flanging height height 3.6mm of length direction.So can live groove 302 end by effective sealing.
During the work of cold-producing medium even distribution device, cold-producing medium enters the first cavity 400 by inlet 103, the flow velocity relying on self mobility and have, after being full of the first cavity 400, the first liquid pass hole 202 on the first liquid-distributing plate 200 carries out primary distribution and flows into the second cavity 500, cold-producing medium through a uniform distribution can be gathered in the groove 302 on the second liquid-distributing plate 300, through the second time distribution of groove 302 and after converging, cold-producing medium flows out even distribution device from the second liquid pass hole 303 groove 302, restrain with the heat exchanger tube under even distribution device and contact, realize exchange heat.
Cold-producing medium enters the first cavity 400 by inlet 103, the flow velocity relying on self mobility and have, after being full of the first cavity 400, the first liquid pass hole 202 on the first liquid-distributing plate 200 and flow into the second cavity 500, groove 42 has guide effect, liquid refrigerant moves according to the concentrated flow of gravity to lower, and be gathered in groove 303, even if when even distribution device installation can not ensure level, length direction occurs one end is higher than other end situation, cold-producing medium is after filling up the groove 303 of relative lower, in the spontaneous groove 303 flowing to relative eminence, groove 303 has convergence and guide functions simultaneously.Liquid refrigerant moves according to the concentrated flow of gravity to lower, and be gathered in groove 303, even if when even distribution device installation can not ensure level, width occurs one end is higher than other end situation, cold-producing medium is after filling up the groove 303 of relative lower, in the spontaneous groove 303 flowing to relative eminence, groove 303 also has distribution function again.Can drip accurately or be ejected into by the cold-producing medium of even distribution device on heat exchanger tube, realize high efficiency heat exchange, thus improve unit performance.
According to the requirement of refrigerating capacity size, the amount of filling up cold-producing medium needed for the first cavity 400 and the second cavity 500 can be calculated, and then determine the volume (now also needing to consider that the volume that cold-producing medium causes through described inlet 103 expansion gasification increases) of the first cavity 400 and the second cavity 500.In refrigeration unit running, ensure that the first cavity 400 and the second cavity 500 are in full state all the time, make all have liquid to pass through along institute on length, width is porose, so cold-producing medium just can be avoided to occur after described first cavity 400 uneven, now again through the convergence of the second cavity 500, groove 303, be finally evenly ejected on heat-exchanging tube bundle.
The utility model also provides a kind of downward film evaporator (not shown), and comprise above-mentioned cold-producing medium even distribution device, even distribution device is placed in the housing of downward film evaporator.The utility model also provides a kind of handpiece Water Chilling Units (not shown), comprises downward film evaporator, also comprises above-mentioned cold-producing medium even distribution device, and described cold-producing medium even distribution device is arranged in described downward film evaporator.Downward film evaporator and handpiece Water Chilling Units are prior art except cold-producing medium even distribution device, repeat no longer one by one herein.
The cold-producing medium even distribution device of each embodiment and downward film evaporator and handpiece Water Chilling Units above, cold-producing medium even distribution device adopts two cavity configurations, number of parts is few, structure is simpler, assemble more convenient, requirement on machining accuracy is low, and cost is cheaper, be adapted at batch in handpiece Water Chilling Units to use, effectively improve the efficiency of assembling of cold-producing medium even distribution device.Structure is compacter, regulates liquid uniform refrigerant to distribute by chamber own volume, and adaptive ability is stronger, solves the problem that the assembling of existing even distribution device is difficult, efficiency is not high.Cover plate, the first liquid-distributing plate, the second liquid-distributing plate are connected by immobilising device, avoiding because welding the distortion caused, also can reduce the process-cycle simultaneously.Can drip accurately or be ejected into by the cold-producing medium of even distribution device on heat exchanger tube, realize high efficiency heat exchange, thus improve unit performance.Meet be uniformly distributed cold-producing medium while, utilize heat exchanger tube to greatest extent under making limited heat exchange area, improve heat exchange efficiency.
The above embodiment only have expressed several embodiment of the present utility model, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be as the criterion with claims.
Claims (15)
1. a cold-producing medium even distribution device, be applied in downward film evaporator, it is characterized in that, comprise cover plate (100), first liquid-distributing plate (200) and the second liquid-distributing plate (300), described cover plate (100), described first liquid-distributing plate (200), described second liquid-distributing plate (300) sets gradually from top to bottom, described cover plate (100) is provided with at least one inlet (103), described cover plate (100) is folded edges, all sides of described cover plate (100) arrange flanging, all sides of described first liquid-distributing plate (200) and all sides of described second liquid-distributing plate (300) are also provided with flanging, the flanging of described first liquid-distributing plate (200) is placed in the flanging of described cover plate (100), the flanging of described second liquid-distributing plate (300) is placed in outside the flanging of described cover plate (100), the first cavity (400) is formed between described cover plate (100) and described first liquid-distributing plate (200), the second cavity (500) is formed between described first liquid-distributing plate (200) and described second liquid-distributing plate (300).
2. cold-producing medium even distribution device according to claim 1, is characterized in that, described cover plate (100) length or/and width described flanging on be provided with the first through hole (101); The flanging of described first liquid-distributing plate (200) is provided with second through hole (201) corresponding with described first through hole (101); The flanging of described second liquid-distributing plate (300) is provided with the third through-hole (301) corresponding with described first through hole (101); Described first through hole (101) is connected by immobilising device (102) with described second through hole (201), and described first through hole (101) and described third through-hole (301) are also connected by immobilising device (102).
3. cold-producing medium even distribution device according to claim 2, is characterized in that, described immobilising device (102) is screw, bolt, rivet or pin.
4. cold-producing medium even distribution device according to claim 2, it is characterized in that, described first through hole (101) is circular hole, slotted hole, square hole or slotted eye, and described second through hole (201) and described third through-hole (301) are circular hole, slotted hole, square hole or slotted eye.
5. cold-producing medium even distribution device according to claim 2, it is characterized in that, on the length direction of described cover plate (100), multiple described first through hole (101) is arranged in two rows, described first through hole (101) being positioned at row is slotted eye, and described first through hole (101) being positioned at lower row is circular port.
6. cold-producing medium even distribution device according to claim 5, is characterized in that, be positioned at multiple described first through hole (101) of row, described in adjacent two, the pitch of holes of the first through hole (101) is 5mm-560mm; Be positioned at multiple described first through hole (101) of lower row, described in adjacent two, the pitch of holes of the first through hole (101) is 5mm-560mm.
7. the cold-producing medium even distribution device according to any one of claim 1-6, it is characterized in that, the thickness of described cover plate (100) is 0.8mm-3.5mm, the thickness of described first liquid-distributing plate (200) is 0.8mm-3.5mm, and the thickness of described second liquid-distributing plate (300) is 0.8mm-3.5mm.
8. the cold-producing medium even distribution device according to any one of claim 1-6, is characterized in that, described first liquid-distributing plate (200) also arranges multiple first liquid pass hole (202); Described second liquid-distributing plate (300) arranges multiple groove (302) in their length direction, multiple described groove (302) be arranged in parallel, and each described groove (302) is provided with multiple second liquid pass hole (303).
9. cold-producing medium even distribution device according to claim 8, it is characterized in that, the quantity of the first row heat exchanger tube that the quantity of described groove (303) is intrafascicular with the heat exchange tube of described downward film evaporator is identical, the first row heat exchanger tube one_to_one corresponding that the heat exchange tube of multiple described groove (303) in the vertical directions and described downward film evaporator is intrafascicular, the spacing of adjacent two described grooves (303) is identical with the center distance of described first row heat exchanger tube.
10. cold-producing medium even distribution device according to claim 9, is characterized in that, the longitudinal section of described groove (303) is V-type or arc, and when described groove (303) is for V-type groove, the interior angle of described V-type groove is 60 °-150 °.
11. cold-producing medium even distribution devices according to claim 8, is characterized in that, described second liquid-distributing plate (300) all sides in their length direction arrange flanging, and width is open; Described cover plate (100) flanging height is in the direction of the width a little more than the flanging height of described cover plate (100) at length direction.
12. cold-producing medium even distribution devices according to claim 8, it is characterized in that, the flanging angle of described cover plate (100) is 80 °-100 °, the flanging angle of described first liquid-distributing plate (200) is 80 °-100 °, and the aperture of described first liquid pass hole (202) is 2.5mm-8mm; Multiple described first liquid pass hole (202) spread pattern is rectangle or rhombus, when multiple described first liquid pass hole (202) spread pattern is rectangle, horizontal spacing 8mm-62mm on line direction between adjacent two described first liquid pass holes (202), the longitudinal pitch on file direction between adjacent two described first liquid pass holes (202) is 6mm-42mm.
13. cold-producing medium even distribution devices according to claim 8, it is characterized in that, matched in clearance is adopted between described first liquid-distributing plate (200) and described cover plate (100), monolateral gap is not more than 0.5mm, also adopt matched in clearance to assemble between described second liquid-distributing plate (300) and described cover plate (100), monolateral gap is not more than 0.5mm.
14. 1 kinds of downward film evaporators, is characterized in that, comprise the cold-producing medium even distribution device described in any one of claim 1-13.
15. 1 kinds of handpiece Water Chilling Units, comprise downward film evaporator, it is characterized in that, also comprise the cold-producing medium even distribution device described in any one of claim 1-13, and described cold-producing medium even distribution device is arranged in described downward film evaporator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520690316.8U CN205014705U (en) | 2015-09-07 | 2015-09-07 | Refrigerant equipartition device and falling film evaporator and cooling water set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520690316.8U CN205014705U (en) | 2015-09-07 | 2015-09-07 | Refrigerant equipartition device and falling film evaporator and cooling water set |
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| Publication Number | Publication Date |
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| CN205014705U true CN205014705U (en) | 2016-02-03 |
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| CN201520690316.8U Active CN205014705U (en) | 2015-09-07 | 2015-09-07 | Refrigerant equipartition device and falling film evaporator and cooling water set |
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