CN212538374U - Falling film type heat exchanger - Google Patents
Falling film type heat exchanger Download PDFInfo
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- CN212538374U CN212538374U CN202020670279.5U CN202020670279U CN212538374U CN 212538374 U CN212538374 U CN 212538374U CN 202020670279 U CN202020670279 U CN 202020670279U CN 212538374 U CN212538374 U CN 212538374U
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- falling film
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- 239000011552 falling film Substances 0.000 title claims abstract description 65
- 239000007788 liquid Substances 0.000 claims abstract description 136
- 239000003507 refrigerant Substances 0.000 claims abstract description 78
- 238000011282 treatment Methods 0.000 claims abstract description 16
- 230000000694 effects Effects 0.000 abstract description 42
- 239000010408 film Substances 0.000 abstract description 4
- 238000002791 soaking Methods 0.000 description 9
- 239000000463 material Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 230000008020 evaporation Effects 0.000 description 4
- 238000001704 evaporation Methods 0.000 description 4
- 239000002184 metal Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000001965 increasing effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000008093 supporting effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 238000011221 initial treatment Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model belongs to the technical field of the heat transfer, specifically provide a falling liquid film heat exchanger. The utility model discloses aim at solving the not good problem of equal liquid effect of current falling film heat exchanger. Therefore, the utility model discloses a falling film heat exchanger includes the pressure cell that sets gradually along the refrigerant flow direction, liquid homogenizing plate and netted liquid homogenizing component, the pressure cell links to each other with the feed liquor pipe, be used for carrying out the first time liquid homogenizing treatment to the refrigerant, be provided with a plurality of liquid homogenizing holes on the liquid homogenizing plate, be used for carrying out the second time liquid homogenizing treatment to the refrigerant, netted liquid homogenizing component is used for carrying out the third time liquid homogenizing treatment to the refrigerant, so that the refrigerant can flow down again after evenly distributed on netted liquid homogenizing component, netted liquid homogenizing component can realize the liquid homogenizing effect better than current liquid homogenizing plate, after the preliminary treatment of refrigerant through liquid homogenizing plate, netted liquid homogenizing component carries out further more careful liquid homogenizing treatment to the refrigerant, thereby promote falling film heat exchanger's liquid homogenizing effect by a wide margin, and then furthest promotes falling film heat exchanger's heat exchange efficiency.
Description
Technical Field
The utility model belongs to the technical field of the heat transfer, specifically provide a falling liquid film heat exchanger.
Background
With the increasing popularization of commercial air conditioners, users begin to pay more and more attention to the heat exchange efficiency of the heat exchanger. In order to effectively ensure the heat exchange efficiency of the heat exchanger, more and more existing commercial air conditioners use the falling film heat exchanger to replace the original flooded heat exchanger, however, the existing falling film heat exchanger still has some defects. Specifically, liquid distribution structures used by the existing falling film heat exchangers are all liquid homogenizing plates, namely, a liquid homogenizing effect is realized by arranging a plurality of through holes on a sheet metal part, and the mode of realizing liquid homogenization by opening a large number of holes on the sheet metal part is time-consuming and has great damage to a machine tool; particularly, when the liquid-homogenizing plate is applied to a large-sized heat exchanger, the liquid-homogenizing plate is easily deformed, and the liquid-homogenizing effect is deteriorated. In addition, the existing means for enhancing the liquid homogenizing effect is to increase the number of the liquid homogenizing plates, and the mode not only has unobvious effect, but also can greatly reduce the circulation speed of the refrigerant to influence heat exchange; moreover, the connection between different liquid-equalizing plates is also prone to cause many problems, for example, when welding is adopted between different liquid-equalizing plates, the liquid-equalizing plates are prone to deformation; when different liquid equalizing plates are screwed or riveted, the vibration generated during the operation of the air conditioner can easily cause the connection failure, thereby causing the problem of poor reliability.
Accordingly, there is a need in the art for a new falling film heat exchanger that addresses the above problems.
SUMMERY OF THE UTILITY MODEL
In order to solve the above-mentioned problem among the prior art, for the not good problem of the equal liquid effect of solving current falling film heat exchanger promptly, the utility model provides a new falling film heat exchanger, falling film heat exchanger includes pressure box, the equal liquid board that sets gradually along the refrigerant flow direction and netted equal liquid component, the pressure box links to each other with the feed liquor pipe for carry out the equal liquid to the refrigerant and handle for the first time, be provided with a plurality of equal liquid holes on the equal liquid board for carry out the equal liquid of second time and handle the refrigerant, netted equal liquid component is used for carrying out the equal liquid of third time and handles the refrigerant, so that the refrigerant can flow down again after evenly distributed on the netted equal liquid component.
In a preferred technical solution of the falling film heat exchanger, a plurality of liquid guiding structures are further disposed on one side of the mesh-shaped liquid equalizing member away from the liquid equalizing plate.
In the preferable technical scheme of the falling film heat exchanger, the liquid guiding structure is in a triangular prism shape, and one side surface of the triangular prism is connected with one side of the reticular liquid homogenizing component, which is far away from the liquid homogenizing plate.
In the preferable technical scheme of the falling film heat exchanger, the liquid guiding structure is a conical structure, and the bottom surface of the conical structure is connected with one side of the reticular liquid homogenizing member, which is far away from the liquid homogenizing plate.
In a preferred embodiment of the above falling film heat exchanger, the tapered structure is conical or polygonal.
In the preferable technical scheme of the falling film heat exchanger, the vertical height of the liquid guide structure is set between 10mm and 100 mm.
In the preferable technical scheme of the falling film heat exchanger, the falling film heat exchanger further comprises a heat exchange tube support frame arranged below the liquid guide structure, a plurality of mounting holes are formed in the heat exchange tube support frame, and the heat exchange tube is erected on the heat exchange tube support frame through the mounting holes.
In a preferred embodiment of the above falling film heat exchanger, a part of the plurality of mounting holes forms a first hole group, another part of the plurality of mounting holes forms a second hole group, the first hole group is located above the second hole group, the first hole group is distributed in a rectangular shape, and the second hole group is distributed in an arcuate shape.
In a preferred embodiment of the above falling film heat exchanger, the length of the first hole group is smaller than the chord length of the second hole group.
In a preferable technical scheme of the falling film heat exchanger, the thickness of the reticular liquid homogenizing member is set to be 30 mm-100 mm.
As can be understood by those skilled in the art, in the technical scheme of the utility model, the falling film heat exchanger comprises a pressure box, a liquid homogenizing plate and a net-shaped liquid homogenizing component which are sequentially arranged along the flowing direction of the refrigerant, wherein the pressure box is connected with a liquid inlet pipe and is used for carrying out primary liquid homogenizing treatment on the refrigerant, the refrigerant which is uniformly distributed once through the pressure box flows onto the liquid homogenizing plate, a plurality of liquid homogenizing holes are arranged on the liquid homogenizing plate and are used for carrying out secondary liquid homogenizing treatment on the refrigerant so as to ensure that the flowing range of the refrigerant can be matched with the laying range of the heat exchange pipe and further effectively ensure the liquid homogenizing effect of the falling film heat exchanger, the net-shaped liquid homogenizing component is used for carrying out tertiary liquid homogenizing treatment on the refrigerant so that the refrigerant can flow down after being uniformly distributed on the net-shaped liquid homogenizing component, the net-shaped liquid homogenizing component can realize better liquid homogenizing effect than the liquid homogenizing plate, after the primary treatment of the liquid homogenizing plate is carried out on the refrigerant, the reticular liquid homogenizing component can further finely homogenize the liquid of the refrigerant, so that the liquid homogenizing effect of the falling film heat exchanger is greatly improved, and the heat exchange efficiency of the falling film heat exchanger is further improved to the greatest extent.
Further, the utility model discloses still through inciting somebody to action the thickness setting of netted homocline component is between 30mm to 100mm to when effectively guaranteeing homocline effect, can also effectively guarantee the flow velocity of refrigerant, thereby effectively prevent the refrigerant and be in the process too much evaporation appears during netted homocline component, so that further effectively guarantee falling liquid film heat exchanger's heat exchange efficiency.
Further, the utility model discloses still pass through the deviation of netted liquid component of equalling one side of liquid board sets up a plurality ofly lead the liquid structure and effectively avoid the easy problem of gathering drippage of refrigerant to further guarantee the liquid effect of equalling, and then effectively guarantee heat exchange efficiency.
Further, the utility model discloses still through inciting somebody to action the vertical height setting of drain structure is between 10mm to 100mm to when effectively guaranteeing equal liquid effect, can also effectively guarantee the flow velocity of refrigerant, thereby effectively prevent the refrigerant and be in the process too much evaporation appears during the drain structure, so that further effectively guarantee falling liquid film heat exchanger's heat exchange efficiency.
Further, the utility model discloses still through inciting somebody to action the heat exchange tube support frame sets up drain structure below to make the refrigerant can accurately drip to the heat exchange tube under the guide effect of drain structure, so that guarantee the heat transfer effect of refrigerant to the at utmost.
Further, the utility model discloses still through inciting somebody to action first punch combination sets up the top of second punch combination, and make first punch combination is the rectangle and distributes, the second punch combination is bow-shaped distribution, so that erect so that flow through the refrigerant of the heat exchange tube on the first punch combination can better drip to erect on the heat exchange tube on the second punch combination to furthest performance refrigerant's heat transfer effect, and then promote by a wide margin falling film heat exchanger's heat exchange efficiency.
Further, the utility model provides a length of first punch combination is less than the chord length of second punch combination to erect heat exchange tube in the second punch combination can catch better through erectting the refrigerant of the heat exchange tube drippage in the first punch combination to effectively guarantee that all refrigerants can both realize abundant evaporation.
Drawings
Fig. 1 is a schematic view of a first internal structure of a falling film heat exchanger according to the present invention;
fig. 2 is a second internal structural schematic diagram of the falling film heat exchanger of the present invention;
fig. 3 is a third schematic internal structure of the falling film heat exchanger of the present invention;
FIG. 4 is a first structural schematic view of the liquid-equalizing plate, the reticular liquid-equalizing member and the liquid-guiding structure of the present invention;
FIG. 5 is a second structural diagram of the liquid-equalizing plate, the reticular liquid-equalizing member and the liquid-guiding structure of the present invention;
FIG. 6 is a schematic structural view of a support frame for the heat exchange tube;
reference numerals: 11. a housing; 12. a liquid inlet pipe; 13. a pressure cell; 14. a liquid homogenizing plate; 15. a mesh-shaped liquid-homogenizing member; 16. a drainage structure; 17. a heat exchange tube support frame; 171. mounting holes; 18. a fixing member.
Detailed Description
Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention. And can be adjusted as needed by those skilled in the art to suit particular applications. For example, the present invention does not limit the application of the falling film heat exchanger, that is, the falling film heat exchanger can be applied to various types of air conditioners; the change of the application object does not deviate from the basic principle of the utility model, and belongs to the protection scope of the utility model.
It should be noted that in the description of the present invention, the terms "upper", "lower", "left", "right", "front", "rear", "inner", "outer", "lateral", "vertical", and the like, which indicate directions or positional relationships, are based on the directions or positional relationships shown in the drawings, which are for convenience of description only, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "coupled" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Referring first to fig. 1 and 3, wherein fig. 1 is a schematic view of a first internal structure of a falling film heat exchanger according to the present invention; fig. 2 is a second internal structural schematic diagram of the falling film heat exchanger of the present invention; fig. 3 is a schematic diagram of a third internal structure of the falling film heat exchanger of the present invention. As shown in fig. 1 to 3, the falling film heat exchanger of the present invention includes a cylindrical housing 11, other components of the falling film heat exchanger are all disposed in the housing 11, the upper end of the liquid inlet pipe 12 is connected to the main circulation loop of the air conditioner, and the liquid inlet pipe 12 is disposed on the housing 11 so as to input the refrigerant into the falling film heat exchanger. It should be noted that, for convenience of illustrating the internal structure of the falling film heat exchanger, the front side and the rear side of the shell 11 shown in fig. 1 and 2 are not closed, but in actual use, the shell 11 is closed, and only a liquid inlet hole and a liquid outlet hole are usually arranged on the shell. Certainly, the utility model does not limit the position of the liquid outlet, and the technical personnel can set the position according to the actual use requirement, as long as the refrigerant in the falling film heat exchanger can realize the refrigerant circulation through the liquid inlet and the liquid outlet; preferably, the liquid outlet hole is disposed on the front side surface or the rear side surface of the shell 11, so that the refrigerant can be fully evaporated in the falling film heat exchanger and then output. In addition, it should be noted that the present invention does not limit the shape and material of the housing 11, and the technician can set the shape and material according to the actual use requirement; the change of this concrete structure does not deviate from the basic principle of the utility model, belonging to the protection scope of the utility model.
Specifically, the falling film heat exchanger further comprises a pressure box 13, a liquid homogenizing plate 14 and a reticular liquid homogenizing member 15 which are sequentially arranged along the flow direction of the refrigerant (from top to bottom), wherein the lower end of the liquid inlet pipe 12 is connected with the pressure box 13, namely, the refrigerant in the main circulation loop of the air conditioner can enter the pressure box 13 through the liquid inlet pipe 12. The pressure box 13 can perform primary liquid homogenizing treatment on the refrigerant, so that the refrigerant can flow onto the liquid homogenizing plate 14 after being uniformly distributed for one time through the pressure box 13; the liquid homogenizing plate 14 can perform secondary liquid homogenizing treatment on the refrigerant so as to effectively ensure that the flowing range of the refrigerant can be matched with the laying range of the heat exchange tube, and further effectively ensure the liquid homogenizing effect of the falling film heat exchanger; the netted liquid-homogenizing member 15 can carry out the third time liquid-homogenizing treatment to the refrigerant can flow down again after evenly distributed on netted liquid-homogenizing member 15, netted liquid-homogenizing member 15 can realize better liquid-homogenizing effect than liquid-homogenizing plate 14, after the refrigerant is subjected to preliminary treatment of liquid-homogenizing plate 14, netted liquid-homogenizing member 15 can carry out further more careful liquid-homogenizing treatment to the refrigerant, thereby promote the liquid-homogenizing effect of falling film heat exchanger by a wide margin, and then promote to the utmost the heat exchange efficiency of falling film heat exchanger.
As shown in fig. 2 and 3, the pressure cell 13 is a box body having a rectangular parallelepiped shape, and the refrigerant in the bundle enters the pressure cell 13 through the liquid inlet pipe 12 and is dispersed by gravity and impact force, so as to be distributed in the box body for the first time. Of course, the arrangement of the bottom structure of the pressure box 13 can affect the liquid-equalizing effect of the pressure box 13, and technicians can set the liquid-equalizing effect by themselves according to actual use requirements, so that the utility model does not limit the specific structure of the pressure box, as long as the pressure box 13 can play the liquid-equalizing effect; for example, the bottom surface of the pressure cell 13 may be provided with a plurality of through holes or a plurality of through grooves. Furthermore, it can be understood by those skilled in the art that the present invention does not impose any limitation on the overall structure and shape of the pressure cell 13, as long as the pressure cell 13 can achieve the effect of primary liquid equalization in the falling film heat exchanger.
Further, the main body of the liquid-equalizing plate 14 is a rectangular plate-shaped structure, and a plurality of liquid-equalizing holes (not shown) are formed in the plate-shaped structure, and the refrigerant flowing down through the pressure box 13 flows onto the liquid-equalizing plate 14, and then is further diffused on the main body of the liquid-equalizing plate 14, so that the transverse flow range of the refrigerant is expanded, and then flows down through the plurality of liquid-equalizing holes, so that the liquid-equalizing effect is realized. It should be noted that, the present invention does not limit the size, number and distribution of the liquid homogenizing holes, and the technicians can set the liquid homogenizing holes according to the actual use requirements, as long as the liquid homogenizing effect can be achieved; as a preferred embodiment, the plurality of liquid homogenizing holes are distributed in an array, so that the liquid homogenizing effect of the liquid homogenizing plate 14 is effectively improved. In addition, it should be noted that the present invention does not make any limitation on the shape, thickness and material of the liquid-equalizing plate 14, and the technician can set the shape according to the actual use requirement, as long as the liquid-equalizing plate 14 can achieve the liquid-equalizing effect; preferably, the soaking plate 14 is made of sheet metal, and the soaking holes are formed by punching.
Next, refer to fig. 4 and 5, wherein fig. 4 is a first structural schematic diagram of the liquid-equalizing plate, the reticular liquid-equalizing member and the liquid-guiding structure of the present invention; fig. 5 is a second structural diagram of the liquid-equalizing plate, the netted liquid-equalizing member and the liquid-guiding structure of the present invention. As shown in fig. 4 and 5, the mesh-shaped liquid-uniforming member 15 has a rectangular parallelepiped structure as a whole, and has a cross-sectional shape identical to that of the main body of the liquid-uniforming plate 14, that is, the refrigerant flowing down through the liquid-uniforming plate 14 can directly flow onto the mesh-shaped liquid-uniforming member 15, so that all the refrigerant can be distributed with uniform depth through the mesh-shaped liquid-uniforming member 15. It should be noted that, the utility model discloses do not make any restriction to netted homocline component 15's specific inner structure, technical staff can set for by oneself according to the in-service use demand, as long as it can play good homocline effect can. As a preferred embodiment, the inside of the mesh-shaped liquid-homogenizing member 15 is in a wire-loop shape, and the wire-loop structure is more favorable for the dispersion and flow of the refrigerant, so as to improve the liquid-homogenizing effect of the mesh-shaped liquid-homogenizing member 15 to the greatest extent, and further greatly improve the heat exchange efficiency of the falling film heat exchanger; of course, the inside of the net-like liquid-uniforming member 15 may also be arranged in a lattice pattern. In addition, as will be understood by those skilled in the art, the present invention does not limit the specific shape of the mesh-shaped liquid-uniforming member 15, and the skilled person can set the shape according to the actual use requirement, preferably matching the shape of the liquid-uniforming plate 14.
Further preferably, through the discovery of repeated tests, the thickness (i.e. the vertical dimension) of the netted liquid-equalizing member 15 is set between 30mm and 100mm, so that the liquid-equalizing effect and the flow speed of the refrigerant can be effectively considered, that is, the flow speed of the refrigerant can be effectively ensured while the liquid-equalizing effect of the refrigerant is effectively ensured, thereby effectively preventing the refrigerant from being excessively evaporated when passing through the netted liquid-equalizing member 15, and further effectively ensuring the heat exchange efficiency of the falling film heat exchanger. Meanwhile, the specific thickness of the mesh-shaped liquid-homogenizing member 15 is determined by the viscosity of the refrigerant used by the air conditioner, specifically, the larger the viscosity of the refrigerant used by the air conditioner is, the smaller the thickness of the mesh-shaped liquid-homogenizing member 15 is, and the smaller the viscosity of the refrigerant used by the air conditioner is, the larger the thickness of the mesh-shaped liquid-homogenizing member 15 is. It should be noted that, the utility model discloses do not make any restriction to netted homocline component 15's material, the technical staff can set for by oneself according to the in-service use demand, for example, netted homocline component 15 can be made by metal material, for example stainless steel, also can make with plastics, and the change of this kind of specific material is not skew the basic principle of the utility model belongs to the protection scope.
In addition, equal downwardly extending of main part both ends of liquid-equalizing board 14 is inwards turned back again and is formed two rectangle fixed slots, and the both ends of netted liquid-equalizing member 15 can block respectively to the rectangle fixed slot of both sides in to liquid-equalizing board 14 can play certain supporting effect to netted liquid-equalizing member 15, thereby effectively avoid netted liquid-equalizing member 15 to produce the problem that warp and influence liquid-equalizing effect. Still be provided with four fixed component 18 on the board 14 of soaking, fixed component 18 is the strip structure, and be formed with the rectangle form between fixed component 18 and the main part of the board 14 of soaking and lead to the groove, netted soaking component 15 can block to this rectangle form and lead to the inslot, so that fixed component 18 can play further fixed effect to netted soaking component 15, thereby effectively guarantee that netted soaking component 15 can not produce the deformation in the use, and then effectively guarantee the good soaking effect of netted soaking component 15. It should be noted that, the present invention does not limit the specific structure and the number of the fixing members 18, and the technical personnel can set the fixing members according to the actual use requirement, as long as the fixing members 18 can fix the mesh-shaped liquid-equalizing member 15. Meanwhile, the utility model does not limit the concrete fixing mode of the reticular liquid-homogenizing component 15, and technicians can set the fixing mode according to actual use requirements as long as the reticular liquid-homogenizing component 15 can be fixed; for example, the fixing of the mesh-like liquid uniforming member 15 is achieved by providing a fixing bracket in the housing 11.
With continued reference to fig. 4 and 5, nine liquid guiding structures 16 are further disposed on the lower side of the mesh-shaped liquid-uniforming member 15, and in the preferred embodiment, the liquid guiding structures 16 are in the shape of triangular prisms, and one side surface of each triangular prism is connected to the lower side surface of the mesh-shaped liquid-uniforming member 15 so as to further guide the refrigerant. Specifically, nine drain structures 16 all set up along the length direction of netted liquid component 15 that all leads to all be parallel arrangement between the drain structure 16, and the interval between two adjacent drain structures 16 is the same, so that effectively guarantee that the refrigerant can realize the equipartition better. It should be noted that, the present invention does not limit the specific setting number and distribution mode of the mesh-like liquid-equalizing member 15, and the technical staff can set the setting according to the actual use requirement. Meanwhile, the technician can adjust the specific shape of the liquid guiding structure 16 according to the actual use requirement, as long as the liquid guiding structure has a guiding effect on the refrigerant. For example, in another preferred embodiment, the liquid guiding structure 16 may also be a cone-shaped structure, either conical or multi-pyramid; and when the liquid guiding structure 16 is arranged as a cone-shaped structure, a plurality of liquid guiding structures 16 can be distributed in an array, so as to effectively ensure the liquid equalizing effect of the falling film heat exchanger.
Further preferably, through the discovery of repeated tests, the vertical height setting of leading liquid structure 16 can effectively compromise the flow speed of homogeneous liquid effect and refrigerant between 10mm to 100mm, namely, when effectively guaranteeing its homogeneous liquid effect, can also effectively guarantee the flow speed of refrigerant to effectively prevent the refrigerant too much evaporation from appearing when leading liquid structure 16, and then effectively guarantee falling film heat exchanger's heat exchange efficiency. Meanwhile, the specific height of the liquid guiding structure 16 is determined by the viscosity of the refrigerant used by the air conditioner, specifically, the larger the viscosity of the refrigerant used by the air conditioner is, the smaller the height of the liquid guiding structure 16 is, the smaller the viscosity of the refrigerant used by the air conditioner is, and the larger the height of the liquid guiding structure 16 is. It should be noted that, the present invention does not limit the specific material of the liquid guiding structure 16, and the technical staff can set the material according to the actual use requirement.
With continuing reference to fig. 2, 3 and 6, fig. 6 is a schematic structural view of the heat exchange tube support bracket. As shown in fig. 2, 3 and 6, the falling film heat exchanger further includes three heat exchange tube support frames 17 disposed below the liquid guiding structure 16, a plurality of mounting holes 171 are disposed on the heat exchange tube support frames 17, and the heat exchange tubes can sequentially pass through the three mounting holes 171 correspondingly disposed on the three heat exchange tube support frames 17 and are erected among the three heat exchange tube support frames 17. Generally, water flows in the heat exchange tube, and a refrigerant drips on the heat exchange tube and exchanges heat with the water in the heat exchange tube, so that the refrigerant can realize the refrigeration or heating effect through the water in the heat exchange tube, and the heat exchange requirement of a user is effectively met. As a preferred embodiment, a heat exchange tube is correspondingly arranged below each liquid guiding structure 16, that is, the axis of the heat exchange tube erected on the uppermost of the heat exchange tube supporting frames 17 is just below the center of the liquid guiding structure 16 correspondingly arranged above. It should be noted that, the present invention does not limit the number of the heat exchange tube support frames 17 and the specific manner in which the heat exchange tubes are supported by the heat exchange tube support frames 17, and the technical personnel can set the number by themselves according to the actual use requirement, as long as the heat exchange tubes can be fixed by the heat exchange tube support frames 17; for example, the heat exchange tube may be fixed by only one heat exchange tube support bracket 17, as long as the thickness of the heat exchange tube support bracket 17 is increased, and other members having a fixing effect may be used.
Further, in the preferred embodiment, the plurality of mounting holes 171 are formed with three first groups of holes and one second group of holes, all three of which are located above the second group of holes and all three of which are rectangular in configuration, and the second group of holes are arcuate in configuration, with reference to the orientation of FIG. 6. Specifically, it is three be the interval setting between the first punch combination, and three the width of the rectangle that first punch combination appears reduces in proper order, so that three the number of piles of the heat exchange tube that supports on the first punch combination reduces in proper order, thereby effectively guarantees that the heat transfer effect of every heat exchange tube can both keep unanimous, and then effectively guarantees that the output temperature can remain stable. It will be appreciated by those skilled in the art that although three first hole sets are provided in the preferred embodiment, this number setting is not limiting and may be adjusted by the skilled person according to the actual use requirements. Meanwhile, in the preferred embodiment, the arc portion of the arch shape presented by the second hole group faces downwards, and the chord length of the arch shape presented by the second hole group is greater than the length of the rectangle presented by the first hole group, so that the heat exchange tubes erected on the second hole group can better receive the refrigerant dropped by the heat exchange tubes erected on the first hole group, and more heat exchange tubes on the lower portion can fully exchange heat with the collected refrigerant, so that the refrigerant in the falling film heat exchanger can be fully evaporated, the heat exchange efficiency of the falling film heat exchanger is effectively ensured, and the heat exchange efficiency of the whole air conditioner is further effectively ensured. It should be noted that the utility model discloses it is also not right concrete shape that the second punch combination appears does strict limitation, and the technical staff can adjust by oneself according to the in-service use demand, as long as it faces the whole width of the heat exchange tube that the part of first punch combination was erect is greater than the whole width of the heat exchange tube that transversely erects along first punch combination can.
So far, the technical solution of the present invention has been described with reference to the accompanying drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, a person skilled in the art can make equivalent changes or substitutions to the related technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.
Claims (10)
1. A falling film heat exchanger is characterized in that the falling film heat exchanger comprises a pressure box, a liquid homogenizing plate and a reticular liquid homogenizing component which are sequentially arranged along the flowing direction of a refrigerant,
the pressure box is connected with the liquid inlet pipe and used for carrying out primary liquid homogenizing treatment on the refrigerant, a plurality of liquid homogenizing holes are formed in the liquid homogenizing plate and used for carrying out secondary liquid homogenizing treatment on the refrigerant, and the reticular liquid homogenizing component is used for carrying out tertiary liquid homogenizing treatment on the refrigerant, so that the refrigerant can flow down after being uniformly distributed on the reticular liquid homogenizing component.
2. The falling film heat exchanger according to claim 1, wherein a side of the mesh-like liquid-uniforming member facing away from the liquid-uniforming plate is further provided with a plurality of liquid-guiding structures.
3. The falling film heat exchanger according to claim 2, wherein the liquid guiding structure is in the shape of a triangular prism, and one side surface of the triangular prism is connected with one side of the reticular liquid-homogenizing member, which is away from the liquid-homogenizing plate.
4. The falling film heat exchanger according to claim 2, wherein the liquid guiding structure is a conical structure, and a bottom surface of the conical structure is connected with a side of the mesh-shaped liquid-homogenizing member, which faces away from the liquid-homogenizing plate.
5. The falling film heat exchanger according to claim 4, wherein the cone-like structure is conical or multi-pyramidal.
6. The falling film heat exchanger according to any one of claims 2 to 5, wherein the vertical height of the liquid guiding structure is set between 10mm and 100 mm.
7. The falling film heat exchanger according to any one of claims 2 to 5, further comprising a heat exchange tube support frame disposed below the liquid guiding structure,
the heat exchange tube support frame is provided with a plurality of mounting holes, and the heat exchange tube is erected on the heat exchange tube support frame through the mounting holes.
8. The falling film heat exchanger of claim 7, wherein a portion of the plurality of mounting holes form a first group of holes and another portion of the plurality of mounting holes form a second group of holes,
the first group of holes is located above the second group of holes and the first group of holes is rectangular in distribution and the second group of holes is arcuate in distribution.
9. The falling film heat exchanger of claim 8, wherein the length of the first set of holes is less than the chord length of the second set of holes.
10. The falling film heat exchanger according to claim 1, wherein the mesh-like liquid-homogenizing member is provided with a thickness of between 30mm and 100 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020670279.5U CN212538374U (en) | 2020-04-27 | 2020-04-27 | Falling film type heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020670279.5U CN212538374U (en) | 2020-04-27 | 2020-04-27 | Falling film type heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212538374U true CN212538374U (en) | 2021-02-12 |
Family
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113639487A (en) * | 2020-04-27 | 2021-11-12 | 青岛海尔空调电子有限公司 | Falling film type heat exchanger |
| WO2023082700A1 (en) * | 2021-11-11 | 2023-05-19 | 珠海格力电器股份有限公司 | Heat exchanger and air conditioning unit |
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2020
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113639487A (en) * | 2020-04-27 | 2021-11-12 | 青岛海尔空调电子有限公司 | Falling film type heat exchanger |
| WO2023082700A1 (en) * | 2021-11-11 | 2023-05-19 | 珠海格力电器股份有限公司 | Heat exchanger and air conditioning unit |
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