CN201897428U - Coolant distributor - Google Patents
Coolant distributor Download PDFInfo
- Publication number
- CN201897428U CN201897428U CN2010206494159U CN201020649415U CN201897428U CN 201897428 U CN201897428 U CN 201897428U CN 2010206494159 U CN2010206494159 U CN 2010206494159U CN 201020649415 U CN201020649415 U CN 201020649415U CN 201897428 U CN201897428 U CN 201897428U
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- baffle
- refrigerant
- plate
- cooling medium
- medium distributor
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Abstract
The utility model provides a coolant distributor, which is used for an air conditioning evaporator, is arranged at the bottom of an evaporator tube body and comprises a first sealing plate, a second sealing plate, a first baffle plate, a second baffle plate, a bottom plate and a coolant flow inlet. The coolant distributor is characterized in that the bottom plate is tightly welded at the bottom of the evaporator tube body, the first baffle plate, the second baffle plate and the bottom plate are tightly welded in the length direction of the evaporator to form a cavity with the triangular cross section, the first sealing plate and the second sealing plate are respectively welded at both ends of the cavity with the triangular cross section, and coolant distributing holes are distributed on the first baffle plate and/or the second baffle plate.
Description
Technical field
The utility model relates to a kind of cooling medium distributor, is meant a kind of cooling medium distributor that is used for A/C evaporator especially.
Background technology
In the existing air-conditioning refrigeration system, evaporimeter generally adopts flooded evaporator, the refrigerant of flooded evaporator distributes, the employing frame type is typically arranged, or tubular type, or the diffusing stream device of triangular form, its principal character is the not sealing of stream device two ends of loosing, the opening size of diffusing head piece is scrak type and circle, bore size is bigger, after the throttling arrangement throttling of refrigerant outside evaporimeter, enters into the stream device that looses, process air diffuser two ends and diffusing head piece are diffused into the below of evaporation tube, and convective boiling heat exchange between the evaporation tube.
Above-mentioned described several diffusing stream devices, refrigerant is through the throttling arrangement outside the evaporimeter time, be in the bigger two phase flow state of mass dryness fraction, flow through when loosing the stream device, exist gas-liquid mutually inhomogeneous at corner region or away from the refrigerant inducer, problems such as the cold medium flux of each diffusing head piece is unequal, and flow velocity is slow have influenced the surface coefficient of heat transfer of evaporation tube when the boiling heat transfer of evaporation tube bottom.
The utility model content
In view of this, main purpose of the present utility model is to provide a kind of cooling medium distributor, with the uniformity that realizes that refrigerant distributes, strengthen refrigerant to flow disturbance, improve the heat exchange efficiency of evaporimeter.
Technical scheme 1: a kind of cooling medium distributor, be used for A/C evaporator, be arranged at the evaporator tube bottom, comprise first sealing plate, second sealing plate, first baffle plate, second baffle, base plate and refrigerant inflow entrance, described base plate closely is welded in the evaporator tube bottom, it is leg-of-mutton cavity that described first baffle plate and described second baffle and described base plate closely are welded to form the cross section along the length direction of evaporimeter, described first sealing plate and described second sealing plate are welded in the two ends that described cross section is leg-of-mutton cavity respectively, are furnished with the refrigerant dispensing orifice on described first baffle plate and/or the described second baffle.
By technical scheme 1 as can be known, described base plate closely is welded in the evaporator tube bottom, it is leg-of-mutton space that first baffle plate and second baffle and base plate closely are welded to form the cross section along the length direction of evaporimeter, first sealing plate and second sealing plate are welded in the two ends that described cross section is leg-of-mutton space respectively, each junction does not all have the slit, has guaranteed the sealing of cooling medium distributor.The cross section that described first sealing plate, second sealing plate, first baffle plate, second baffle and base plate constitute is that the inlet mass dryness fraction of the leg-of-mutton cavity design liquid refrigerants that guaranteed to enter cooling medium distributor is little, the good fluidity of refrigerant.The pressure of refrigerant in the cooling medium distributor before distribution is very high, is furnished with the uniformity that the refrigerant dispensing orifice can guarantee that refrigerant distributes on first baffle plate and/or second baffle, and refrigerant is dispersed in the evaporimeter, has improved the heat exchange efficiency of evaporimeter.
Technical scheme 2: according to technical scheme 1 described cooling medium distributor, described refrigerant inflow entrance is arranged on described base plate centre position.
By technical scheme 2 as can be known, the refrigerant inflow entrance is arranged on the centre position of described base plate, can guarantee that refrigerant enters that to be uniformly distributed in described cross section behind the described cooling medium distributor be leg-of-mutton cavity, make in the cavity gas-liquid everywhere evenly distribute mutually, the refrigerant flow stability is good.
Technical scheme 3: according to technical scheme 1 described cooling medium distributor, the length of described first baffle plate, second baffle and base plate is less than the length of evaporator tube.
Technical scheme 4: according to technical scheme 1 described cooling medium distributor, the angle between described first baffle plate and the second baffle is between 110 °～130 °.
Technical scheme 5: according to technical scheme 1 described cooling medium distributor, the number of described refrigerant dispensing orifice is 8 integral multiple, and the center line 50～60mm of the described refrigerant inflow entrance of distance is uniformly distributed in first baffle plate and/or second baffle.
As from the foregoing, described refrigerant dispensing orifice is uniformly distributed in first baffle plate and/or second baffle apart from the center line 50～60mm of refrigerant inflow entrance, the refrigerant dispensing orifice is not set directly over the refrigerant inflow entrance, can prevent that the high pressure refrigerant from directly going out from the refrigerant dispensing orifice after entering the cavity of coolant distributor, make refrigerant after entering the cavity of coolant distributor, evenly disperse to the cavity two ends.
Technical scheme 6: according to technical scheme 1 described cooling medium distributor, described refrigerant dispensing orifice be shaped as circle, ellipse, triangle, square and regular polygon.
Technical scheme 7: the direction according to technical scheme 6 described each refrigerant dispensing orifice perforates is that setting is dispersed at the center with described base plate center.
By technical scheme 7 as can be known, formation trends towards parallel with base plate the closer to the Kong Yue of base plate, Kong Yue away from base plate trends towards vertical with base plate more, thereby make the evaporator tube that enters of the basic evenly direction of refrigerant direction, and can not enter evaporator tube facing one direction, help the rapid diffusion of refrigerant in evaporator tube.
Technical scheme 8: according to technical scheme 1 described cooling medium distributor, also comprise the position of splitter that is arranged at described first baffle plate and second baffle angle, described position of splitter is a class circular cone cone, and the top of described position of splitter is over against the refrigerant inflow entrance, and the bottom is fixed on first baffle plate and the second baffle.
By technical scheme 8 as can be known, the refrigerant that enters from the refrigerant inflow entrance is along cone outer wall guiding both sides, and avoids the appearance of turbulent flow, better water conservancy diversion.
Technical scheme 9: according to technical scheme 1 described cooling medium distributor, the cross section, angle of described first plate washer and second baffle is an arc.
By technical scheme 9 as can be known, the cross section, angle of first plate washer and second baffle is that the design of arc can avoid refrigerant to remain in the dead angle of first baffle plate and second baffle formation, refrigerant is uniformly dispersed, has also avoided refrigerant to utilize insufficient and loss that cause.
Can make the flow through flow velocity of each dispensing orifice of refrigerant equate by above setting to the refrigerant dispensing orifice, and be much higher than the flow velocity of the refrigerant inflow entrance of cooling medium distributor, thereby refrigerant is gone out at a high speed from the refrigerant dispensing orifice, strengthened convection current perturbation action to nest of tubes in the evaporimeter, strengthen the boiling heat transfer of evaporation tube, improved the heat exchange efficiency of evaporimeter.
Description of drawings
Fig. 1 is arranged at stereogram in the evaporimeter for cooling medium distributor;
Fig. 2 is the stereogram of cooling medium distributor;
Fig. 3 is the left view of cooling medium distributor;
Fig. 4 is the partial enlarged drawing of A among Fig. 3;
Fig. 5 is the vertical view of cooling medium distributor;
Fig. 6 is the side view of Fig. 5 along the B-B direction;
Fig. 7 is the simulation of fluid simulation module and fluid calculation module in the cooling medium distributor and calculates the size of refrigerant dispensing orifice and the flow chart of distribution.
The reference numeral explanation
The 1-evaporator tube; The 2-cooling medium distributor; 31-first baffle plate; The 32-second baffle; 41-first sealing plate; 42-second sealing plate; The 5-base plate; 6-refrigerant dispensing orifice; 7-refrigerant inflow entrance.
The specific embodiment
The structural principle of specific embodiment in the utility model is described below in conjunction with figure.
Fig. 1 is arranged at stereogram in the evaporimeter for cooling medium distributor, and as can be seen from the figure, cooling medium distributor 2 is arranged at the bottom of evaporator tube 1, and the length of described coolant distributor 2 is less than the length of evaporator tube 1.
Fig. 2 is the stereogram of cooling medium distributor 2, as seen from Figure 2, the cooling medium distributor that is used for A/C evaporator 2 that the utility model provides, be arranged at evaporator tube 1 bottom, comprise first sealing plate 41, second sealing plate 42, first baffle plate 31, second baffle 32, base plate 5 and refrigerant inflow entrance 7, described base plate 5 closely is welded in the bottom of evaporator tube 1, it is leg-of-mutton cavity that described first baffle plate 31 and described second baffle 32 and described base plate 5 closely are welded to form the cross section along the length direction of evaporator tube 1, described first sealing plate 41 and described second sealing plate 42 are welded in the two ends that described cross section is leg-of-mutton cavity respectively, are distributed with refrigerant dispensing orifice 6 on described first baffle plate 31 and/or the described second baffle 32.
Refrigerant dispensing orifice 3 is set to circular port among the utility model embodiment, and the shape in hole is not done special restriction herein, and the shape for easily manufactured refrigerant dispensing orifice 6 in the present embodiment is set to circle.Be uniformly dispersed after refrigerant is flowed out, shape that also can refrigerant dispensing orifice 6 is set to triangle, square, regular polygon hole and slotted hole etc.As long as the pore size of described refrigerant dispensing orifice 6 satisfies the pressure loss, but can not be too small, in order to avoid refrigerant stops up refrigerant dispensing orifice 6.The utility model embodiment is for the ease of processing, and the pore size of preferred refrigerant dispensing orifice 6 is 4.2mm, 4.8mm, 5.0mm or 6.0mm.
Fig. 3 is the left view of cooling medium distributor 2, Fig. 4 is the partial enlarged drawing of A among Fig. 3, from Fig. 3 and Fig. 4 as can be seen, as can be seen from the figure, it is leg-of-mutton cavity that first baffle plate 31 of cooling medium distributor 2, second baffle 32 and base plate 5 are formed the cross section, is distributed with refrigerant dispensing orifice 6 on first baffle plate 31 and/or second baffle 32.Among the utility model embodiment refrigerant dispensing orifice 6 perpendicular to first baffle plate 31 and/second baffle 32 is provided with, if the angle between first baffle plate 31 and the second baffle 32 changes, in order to make refrigerant in evaporimeter, obtain equably, disperse fully, also refrigerant dispensing orifice 6 can be set to has certain angle with first baffle plate 31 and second baffle 32, even can be vertical with base plate 5.Angle between first baffle plate 31 and the second baffle 32 is between 110 °～130 °, and the angle between preferred first baffle plate 31 of the utility model and the second baffle 32 is 120 °.
Fig. 5 is the vertical view of cooling medium distributor 2, as can be seen from the figure, refrigerant inflow entrance 7 is arranged at the centre position of base plate 5 among the utility model embodiment, makes refrigerant flow into the back two ends that evenly flow to cooling medium distributor 2 from the middle part in the cavitys from refrigerant inflow entrance 7.First baffle plate 31 and second baffle 32 are that position of center line is not provided with refrigerant dispensing orifice 6 directly over refrigerant inflow entrance 7, be for fear of the high pressure refrigerant after entering cavity directly from directly over the ejection cooling medium distributor 2.And, in first baffle plate 31 and second baffle 32 junctions, over against the position of refrigerant inflow entrance 7, the projection that one cone or conoid can be set is as position of splitter, the centrum top is towards refrigerant inflow entrance 7, and the bottom is fixed on first baffle plate 31 and the second baffle 32, with the refrigerant that will enter from refrigerant inflow entrance 7 along cone outer wall guiding both sides, and avoid the turbulent flow appearance, preferable, conoid is along the curved shape of the outer wall of cross-sectional centerline, better water conservancy diversion.
For the ease of shunting to both sides, above-mentioned projection also can be made as the position of splitter of triangular prism pattern, and a side is towards refrigerant inflow entrance 7, and the 2 length direction settings of triangular prism axis normal cooling medium distributor.
The distribution of refrigerant dispensing orifice 6 herein is by fluid simulation module in the evaporimeter and fluid calculation module simulation and calculates that purpose is the effect that reaches the dispersion refrigerant of the best for the distribution by refrigerant dispensing orifice 6.The distribution mode of refrigerant dispensing orifice 6 is not limited only to a kind of in the present embodiment herein, because the refrigerant air-flow near apart from refrigerant dispensing orifice 6 is bigger, less apart from the air-flow that refrigerant dispensing orifice 6 is far away, therefore can distribute in the nearer place of distance center line closely distributes sparse in distance center line place far away, distribute to meet the refrigerant air-flow, be convenient to refrigerant and enter evaporator tube 1 rapidly; Also can distribute sparse in the near place of distance center line, and distribute closely in distance center line place far away, as seen, because the air-flow near apart from refrigerant dispensing orifice 6 is big but refrigerant dispensing orifice 6 distributes more sparse, refrigerant dispensing orifice 6 distributes closely because the air-flow far away apart from refrigerant dispensing orifice 6 is less, thereby makes refrigerant to enter evaporator tube 1 everywhere from cooling medium distributor 2 uniformly; In addition, even refrigerant dispensing orifice 6 can be set to slotted hole and be arranged on first baffle plate 31 and the second baffle 32.
Direction for 6 perforates of refrigerant dispensing orifice, can be as Fig. 7, perpendicular to carrier (i.e. first baffle plate 31 or second baffle 32), in addition, can also be that setting is dispersed at the center with base plate 5 centers with the direction of each refrigerant dispensing orifice 6 perforates, be that each refrigerant dispensing orifice 6 axis directions all face toward base plate 5 centers, trend towards parallel thereby form the closer to the Kong Yue of base plate 5 with base plate 5, Kong Yue away from base plate 5 trends towards vertical with base plate 5 more, thereby what make the basic evenly direction of refrigerant direction enters evaporator tube 1, and can not enter evaporator tube 1 facing one direction, help the rapid diffusion of refrigerant in evaporator tube 1.
Fig. 6 is the side view of Fig. 5 along the B-B direction, as can be seen from the figure, closely connect between second sealing plate 42 and first baffle plate 31, second baffle 32 and the base plate 5 among the figure, the mode of preferred weld will closely connect between sealing plate (41,42) and baffle plate (31,32) and the base plate 5 in the present embodiment, mode by welding makes that the junction does not have the slit in the cavity, thereby has guaranteed that refrigerant can not ooze out the evaporation efficiency that influences evaporimeter from the junction.It is arc that the cross section can also be arranged in the angle of first baffle plate and second baffle, can avoid refrigerant to remain in the dead angle of first baffle plate and second baffle formation like this, refrigerant is uniformly dispersed, also make refrigerant fully mobile, avoided the dead angle to cause refrigerant to utilize insufficient and loss that cause.
The distribution of refrigerant dispensing orifice 6 is by fluid simulation module in the evaporimeter and fluid calculation module simulation and calculates among the utility model embodiment, by analog computation, the flow through flow velocity of each refrigerant dispensing orifice 6 of refrigerant is equated, for refrigerant flow rate in cooling medium distributor 2 cavitys more than 4 times and be much higher than the flow velocity of refrigerant inflow entrance 7, thereby flow out at a high speed from refrigerant dispensing orifice 6, strengthened convection current perturbation action, strengthened the boiling heat transfer of evaporation tube nest of tubes in the evaporimeter.Fig. 7 is the simulation of fluid simulation module and fluid calculation module in the cooling medium distributor 2 and calculates the size of refrigerant dispensing orifice 6 and the flow chart of distribution.As shown in the figure, step S1 is structure and a size of at first determining cooling medium distributor, suppose the distribution of preliminary refrigerant dispensing orifice 6, enter step S2 then, setting pressure, temperature, border conditions such as refrigerant flow rate, enter step S3 analog computation after these conditions all configure and obtain the distribution in flow field, and then enter the step S4 of the flow velocity that calculates each refrigerant dispensing orifice 6, enter step S5 then and calculate the pressure loss of each refrigerant dispensing orifice 6, enter step S6 after having calculated the pressure loss, whether the pressure loss met the demands judge, then enter step S7 continues to judge whether the flow velocity of refrigerant dispensing orifice 6 meets the demands if meet the demands, if the pressure loss does not meet the demands and then enters step S9, continue to enter step S3 after the distribution of change refrigerant dispensing orifice 6 and the size and enter next simulation and computation cycles.Among the step S7 if the flow velocity of refrigerant dispensing orifice 6 meets the demands, then enter step S8 according to simulation and the target refrigerant dispensing orifice 6 that calculates arrange and size is provided with refrigerant dispensing orifice 6 arranging on first baffle plate 31 and second baffle 32; If the flow velocity of refrigerant dispensing orifice 6 does not meet the demands and then enters distribution and the size that S9 changes refrigerant dispensing orifice 6, continue to enter step S3 after the distribution of refrigerant dispensing orifice 6 and size changed the distribution and the size of the refrigerant dispensing orifice 6 after changing are carried out analog computation again.
The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; all within spirit of the present utility model and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (9)
1. cooling medium distributor, be used for A/C evaporator, be arranged at the evaporator tube bottom, comprise first sealing plate, second sealing plate, first baffle plate, second baffle, base plate and refrigerant inflow entrance, it is characterized in that, described base plate closely is welded in the evaporator tube bottom, it is leg-of-mutton cavity that described first baffle plate and described second baffle and described base plate closely are welded to form the cross section along the length direction of evaporimeter, described first sealing plate and described second sealing plate are welded in the two ends that described cross section is leg-of-mutton cavity respectively, are furnished with the refrigerant dispensing orifice on described first baffle plate and/or the described second baffle.
2. cooling medium distributor according to claim 1 is characterized in that, described refrigerant inflow entrance is arranged on described base plate centre position.
3. cooling medium distributor according to claim 1 is characterized in that, the length of described first baffle plate, second baffle and base plate is less than the length of evaporator tube.
4. cooling medium distributor according to claim 1 is characterized in that, the angle between described first baffle plate and the second baffle is between 110 °～130 °.
5. cooling medium distributor according to claim 1 is characterized in that, the number of described refrigerant dispensing orifice is 8 integral multiple, and the center line 50～60mm of the described refrigerant inflow entrance of distance is uniformly distributed in first baffle plate and/or second baffle.
6. cooling medium distributor according to claim 1 is characterized in that, described refrigerant dispensing orifice be shaped as circle, ellipse, triangle, square and regular polygon.
7. cooling medium distributor according to claim 6 is characterized in that, the direction of each described refrigerant dispensing orifice perforate is that setting is dispersed at the center with described base plate center.
8. cooling medium distributor according to claim 1, it is characterized in that, also comprise the position of splitter that is arranged at described first baffle plate and second baffle angle, described position of splitter is a class circular cone cone, its top is over against the refrigerant inflow entrance, and the bottom is fixed on first baffle plate and the second baffle.
9. cooling medium distributor according to claim 1 is characterized in that, the cross section, angle of described first plate washer and second baffle is an arc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206494159U CN201897428U (en) | 2010-12-02 | 2010-12-02 | Coolant distributor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206494159U CN201897428U (en) | 2010-12-02 | 2010-12-02 | Coolant distributor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201897428U true CN201897428U (en) | 2011-07-13 |
Family
ID=44255334
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206494159U Expired - Lifetime CN201897428U (en) | 2010-12-02 | 2010-12-02 | Coolant distributor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201897428U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102042781A (en) * | 2010-12-02 | 2011-05-04 | 海尔集团公司 | Refrigerant distributing device |
| CN112344604A (en) * | 2019-08-08 | 2021-02-09 | 青岛海尔空调电子有限公司 | Liquid equalizing device and air conditioner |
-
2010
- 2010-12-02 CN CN2010206494159U patent/CN201897428U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102042781A (en) * | 2010-12-02 | 2011-05-04 | 海尔集团公司 | Refrigerant distributing device |
| CN102042781B (en) * | 2010-12-02 | 2012-09-05 | 海尔集团公司 | Refrigerant distributing device |
| CN112344604A (en) * | 2019-08-08 | 2021-02-09 | 青岛海尔空调电子有限公司 | Liquid equalizing device and air conditioner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110713 Effective date of abandoning: 20120905 |