CN115900388B - An evaporative condenser unit - Google Patents
An evaporative condenser unitInfo
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- CN115900388B CN115900388B CN202211715301.3A CN202211715301A CN115900388B CN 115900388 B CN115900388 B CN 115900388B CN 202211715301 A CN202211715301 A CN 202211715301A CN 115900388 B CN115900388 B CN 115900388B
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Abstract
本发明涉及换热设备技术领域，具体公开了一种蒸发式冷凝器机组，包括壳体、冷凝器、喷淋装置和风机。其中，冷凝器、喷淋装置和风机均设于壳体，喷淋装置用于向冷凝器喷淋液体，壳体上设有进风口和出风口，风机位于进风口与出风口之间，以在进风口与出风口之间形成风路，且风路的至少局部流向与喷淋装置的喷淋方向形成顺流。应用本发明提供的蒸发式冷凝器机组，采用顺流的方式，喷淋水作用于冷凝器时，受风的正向作用力，利用液体在冷凝器上的毛细效应，冷凝器的盘管不易形成干点，因而实现了换热面积的高效利用，以充分发挥冷凝器的换热效果。
The present invention relates to the technical field of heat exchange equipment, and specifically discloses an evaporative condenser unit, comprising a shell, a condenser, a spray device and a fan. The condenser, the spray device and the fan are all arranged in the shell, the spray device is used to spray liquid onto the condenser, an air inlet and an air outlet are provided on the shell, and the fan is located between the air inlet and the air outlet to form an air path between the air inlet and the air outlet, and at least a partial flow direction of the air path forms a downstream direction with the spraying direction of the spray device. The evaporative condenser unit provided by the present invention adopts a downstream method. When the spray water acts on the condenser, it is affected by the positive force of the wind and utilizes the capillary effect of the liquid on the condenser. The coil of the condenser is not easy to form a dry point, thereby realizing efficient utilization of the heat exchange area and giving full play to the heat exchange effect of the condenser.
Description
Technical Field
The invention relates to the technical field of heat exchange equipment, in particular to an evaporative condenser unit.
Background
The evaporative condenser is high-efficiency heat exchange equipment, combines the traditional water cooling and air cooling secondary cooling heat exchange process into one, and is widely applied in the industrial cooling process. At present, the evaporative condenser mainly sprays cooling water on the surface of a heat exchanger to form a water film, and the water film evaporates to take away heat released by a medium.
The conventional evaporative condenser is cooled in a countercurrent mode, the circulation direction of wind is opposite to that of spray water, so that the heat exchange duration is delayed, the heat exchange effect is improved, and the heat exchange efficiency is high. On the one hand, the air path adopts the flow from bottom to top, and the spray water flows down in a top-down mode, when the spray water flows down, the reaction force of the spray water is adopted, the bottom of a coil pipe of the condenser is easy to form a dry point, namely a relatively ineffective heat exchange part, so that the actual heat exchange area is reduced, and the heat exchange effect of the condenser is not fully exerted, on the other hand, the evaporative condensation generally utilizes the two-phase heat exchange of which the liquid is changed into the gas to exert the high efficiency of heat exchange, the heat is carried by the heat exchange changed gas, and part of the gas is subjected to the downward spray resistance of the spray water in the process of being discharged outside by ascending air flow, so that part of the heat is absorbed by the water for the second time, and the efficiency of heat discharge is reduced.
In summary, how to effectively solve the problems that the heat exchange efficiency is affected by the dry point of the condenser of the evaporative condenser unit is a problem that needs to be solved by those skilled in the art at present.
Disclosure of Invention
Therefore, the present invention is directed to an evaporative condenser unit, which can effectively solve the problem that the heat exchange efficiency is affected by the dry point of the condenser of the evaporative condenser unit due to the structural design of the evaporative condenser unit.
In order to achieve the above purpose, the present invention provides the following technical solutions:
The utility model provides an evaporative condenser unit, includes the casing, locates condenser in the casing and be used for to the spray set of condenser spray liquid, be equipped with air intake and air outlet on the casing, the air intake with be equipped with the fan between the air outlet, in order to the air intake with form the wind path between the air outlet, just the at least local flow direction of wind path with spray set's spray direction forms the concurrent flow.
Optionally, in the evaporative condenser unit, the spraying device is disposed below at least a portion of the condenser, a spraying outlet of the spraying device is disposed upwards, the air inlet is disposed at a lower portion of the housing, and the air outlet is disposed at an upper portion of the housing.
Optionally, in the evaporative condenser unit, the air inlet is disposed at a lower portion of at least one side wall of the housing, and the air outlet is disposed at a top surface of the housing.
Optionally, in the evaporative condenser unit, the spraying device is arranged above the condenser, a spraying outlet of the spraying device is arranged downwards, the air inlet is arranged on the upper part of the shell, and the air outlet is arranged on the lower part of the shell.
Optionally, in the evaporative condenser unit, the air outlet is disposed at a lower portion of a side wall of the housing, and the air inlet is disposed at a top surface of the housing.
Optionally, in the evaporative condenser unit, a direction from a condenser inlet to a condenser outlet of the condenser is opposite to a flow direction of the air path.
Optionally, in the evaporative condenser unit, at least two condensers distributed at intervals along a horizontal direction are arranged in the shell, and the spraying device is arranged corresponding to at least one condenser.
Optionally, in the evaporative condenser unit, the density of the heat dissipation structure of the condenser near the air inlet is smaller than that near the air outlet.
Optionally, in the evaporative condenser unit, the condenser includes at least one of a tube fin radiator, a tube radiator, and a plate radiator.
Optionally, in the evaporative condenser unit, the fan includes a blower disposed at the air inlet and/or an exhaust fan disposed at the air outlet.
Optionally, in the evaporative condenser unit, the evaporative condenser unit further includes a liquid collecting tank disposed at the bottom end of the housing, so as to receive the falling spray liquid.
Optionally, in the evaporative condenser unit, the liquid collecting tank is communicated with the spraying device through a pipeline, and a liquid pump for pumping the spraying liquid in the liquid collecting tank to the spraying device is arranged in the pipeline.
Optionally, in the evaporative condenser unit, the evaporative condenser unit further includes a water blocking device disposed between the air outlet and the condenser.
The invention provides an evaporative condenser unit which comprises a shell, a condenser, a spraying device and a fan. Wherein, the casing is all located to condenser, spray set and fan, and spray set is used for spraying liquid to the condenser, is equipped with air intake and air outlet on the casing, and the fan is located between air intake and the air outlet to form the wind path between air intake and air outlet, and the at least local flow direction of wind path forms the concurrent flow with spray set's the direction of spraying.
By applying the evaporative condenser unit provided by the application, at least partial flow direction of the air path and the spraying direction of the spraying device form forward flow, and when spraying water acts on the condenser in a forward flow mode, the forward acting force of wind is received, and the capillary effect of liquid on the condenser is utilized, so that a coil pipe of the condenser is not easy to form a dry point, thereby realizing the efficient utilization of the heat exchange area and fully playing the heat exchange effect of the condenser. In addition, compared with the downstream mode in the application, the traditional countercurrent mode has longer heat exchange time, but the downstream mode obviously reduces the dry point of the condenser, thereby overcoming the defect of heat exchange time length and also being capable of obtaining higher heat exchange efficiency.
In a preferred embodiment, the spraying device is arranged below at least part of the condenser, the spraying outlet of the spraying device is arranged upwards, the air inlet is arranged at the lower part of the shell, and the air outlet is arranged at the upper part of the shell. The corresponding at least partial condensers form a bottom-up spraying mode, and the flow direction of wind is also from bottom to top, so that a reverse forward flow is formed. On one hand, the condenser is not easy to form a dry point in a reverse forward flow mode; on the other hand, the gas is discharged from bottom to top, so that the steam which is changed into the gas state by the absorbed heat is conveniently and rapidly discharged from the upper part of the shell, and the flow direction of the spray water is consistent with that of the gas, so that resistance is not formed on the steam, the occurrence of a secondary heat exchange phenomenon is avoided, the heat dissipation efficiency is further ensured, and furthermore, the spray liquid can be brought to a certain height under the forward flow of the fan by adopting a forward flow mode, so that the requirement on the power of a liquid pump is reduced, a liquid pump with lower power can be selected, and the energy efficiency is improved.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of an evaporative condenser unit according to a first embodiment of the present invention;
FIG. 2 is a schematic view of an evaporative condenser unit according to a second embodiment of the present invention;
FIG. 3 is a schematic view of an evaporative condenser unit according to a third embodiment of the present invention;
FIG. 4 is a schematic view of an evaporative condenser unit according to a fourth embodiment of the present invention;
FIG. 5 is a schematic view of an evaporative condenser unit according to a fifth embodiment of the present invention;
fig. 6 is a schematic structural diagram of an evaporative condenser unit according to a sixth embodiment of the present invention.
The figures are marked as follows:
the device comprises a shell 1, a condenser 2, a spraying device 3, a fan 4, a liquid collecting tank 5, a liquid pump 6, a pipeline 7, a water baffle 8, an air inlet 11, an air outlet 12, a condenser inlet 21, a condenser outlet 22, a radiating pipe 23 and a spraying outlet 31.
Detailed Description
The embodiment of the invention discloses an evaporative condenser unit, which is used for preventing the occurrence of a dry point of a condenser.
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The evaporative condenser unit provided by the application mainly prevents the occurrence of dry points of a condenser by controlling the direction of spray liquid and the direction of an air inlet and an air outlet, and ensures the heat exchange efficiency. Other specific structures of the evaporative condenser unit can refer to the arrangement of the conventional evaporative condenser unit, and will not be described again.
In some embodiments, the evaporative condenser unit provided by the present disclosure includes a housing, a condenser, a spray device, and a fan. Wherein, the casing is the shell of unit, and condenser, spray set and fan are all located in the casing, and spray set is used for spraying liquid to the condenser, and spray set's specific structure can refer to prior art, does not do the specific limitation here. The shell is provided with an air inlet and an air outlet, the fan is positioned between the air inlet and the air outlet to form an air path between the air inlet and the air outlet, and at least partial flow direction of the air path and the spraying direction of the spraying device form concurrent flow. The direction of the spray outlet of the spray device can be upward or downward, and the formed spray direction is from bottom to top or from top to bottom, so that at least partial flow direction of the air path is from bottom to top or from top to bottom correspondingly. It is understood that the top-down and bottom-up are not limited to the spraying or the wind path, and when the resultant force is decomposed into a horizontal component and a vertical component, the component of the spraying resultant force and the wind path in the vertical direction is larger than the component in the horizontal direction, which can be regarded as top-down or bottom-up.
By applying the evaporative condenser unit provided by the application, at least partial flow direction of the air path and the spraying direction of the spraying device form forward flow, and when spraying water acts on the condenser in a forward flow mode, the forward acting force of wind is received, and the capillary effect of liquid on the condenser is utilized, so that a coil pipe of the condenser is not easy to form a dry point, thereby realizing the efficient utilization of the heat exchange area and fully playing the heat exchange effect of the condenser. In addition, compared with the downstream mode in the application, the traditional countercurrent mode has longer heat exchange time, but the downstream mode obviously reduces the dry point of the condenser, thereby overcoming the defect of heat exchange time length and also being capable of obtaining higher heat exchange efficiency.
In some embodiments, the spray device is disposed below at least a portion of the condenser and the spray outlet of the spray device is disposed upward, the air inlet is disposed in a lower portion of the housing, and the air outlet is disposed in an upper portion of the housing. It is understood that the partial condenser not only comprises a plurality of layers of condenser coils, the spraying device is arranged below the topmost coil or any layer of coil below the topmost coil, but also comprises at least two condensers which are vertically distributed at intervals in the shell, and the spraying device is arranged below the uppermost condenser or any condenser below the uppermost coil. The condenser corresponding to at least part of the condenser above the spraying device forms a bottom-up spraying mode, and the flow direction of wind is also from bottom to top, so that a reverse forward flow is formed. The condenser is characterized in that the condenser is provided with a shell, a gas inlet and a gas outlet, a gas outlet is arranged at the upper part of the shell, a gas inlet is arranged at the lower part of the shell, a gas outlet is arranged at the lower part of the shell, a gas inlet is arranged at the upper part of the shell, a gas outlet is arranged at the lower part of the shell, a gas inlet is arranged at the lower part of the shell, and a gas outlet is arranged at the lower part of the shell.
In some embodiments, referring to fig. 1, the spraying device 3 is disposed below the integral condenser 2, the spraying outlet 31 of the spraying device 3 is disposed upward, the air inlet 11 is disposed at the lower portion of the housing 1, and the air outlet 12 is disposed at the upper portion of the housing 1. The whole spray mode from bottom to top is formed, and the flow direction of wind is also from bottom to top, so that the phenomena of dry point and secondary heat exchange of the condenser 2 can be avoided, the requirement on the power of the liquid pump 6 for supplying liquid to the spray device 3 is reduced, and the contact time of the liquid on the heat exchanger is prolonged. In addition, the spraying device 3 is arranged below the integral condenser 2, and the lower structure of the spraying device is fewer or no other parts, so that maintenance in the use process, such as replacement of a new spraying device 3 or disassembly of the spraying device 3 for maintenance, is convenient.
In some embodiments, the spraying device 3 is disposed below the integral condenser 2, the spraying outlet 31 of the spraying device 3 is disposed upward, the air inlet 11 is disposed at a lower portion of at least one side wall of the housing 1, and the air outlet 12 is disposed at a top surface of the housing 1, so as to form a bottom-up air path. The air inlet 11 is arranged on the side wall, the air outlet 12 is arranged on the top surface of the shell 1, the layout is convenient, the air inlet 11 can be arranged on the bottom surface of the shell 1 under the condition that space is allowed, and the air outlet 12 can be arranged on the side wall of the shell 1. That is, the lower part of the housing 1 mentioned in the above embodiment includes both the lower part of the side wall of the housing 1 and the bottom surface of the housing 1, and the upper part of the housing 1 includes both the top surface of the housing 1 and the upper part of the side wall of the housing 1.
In some embodiments, referring to fig. 2, the spraying device 3 is disposed above the condenser 2, the spraying outlet 31 of the spraying device 3 is disposed downward, the air inlet 11 is disposed at the upper portion of the housing 1, and the air outlet 12 is disposed at the lower portion of the housing 1. That is, the spray mode from top to bottom is formed as a whole, and the flow direction of wind is also from top to bottom, so that the effect of preventing the dry spot of the condenser 2 can be achieved.
In some embodiments, referring to fig. 3, the spraying device 3 is disposed below at least a portion of the condenser 2, the spraying outlet 31 of the spraying device 3 is disposed upward, the air inlet 11 is disposed at the lower portion of the housing 1, and the air outlet 12 is disposed at the upper portion of the housing 1. That is, the spray device 3 is arranged in the middle part of the condenser 2 relative to the upper and lower spaces, and the arrangement can strengthen the cooling of the condenser 2 part above the spray device 3, and the condenser 2 part above the spray device 3 can take away heat by means of the flowing down of the spray liquid which is not completely evaporated. The structure is particularly suitable for the condenser 2 which adopts a structure of up-in and down-out, namely, the part with higher heat of the condenser 2 above the spray device 3 is cooled in an enhanced way, and the part with lower heat is cooled by the spray liquid which is not completely evaporated in a part to take away the heat.
In some embodiments, referring to fig. 3, the spraying device 3 is disposed above the condenser 2, the spraying outlet 31 of the spraying device 3 is disposed downward, the air outlet 12 is disposed at the lower portion of the side wall of the housing 1, and the air inlet 11 is disposed at the top surface of the housing 1. The air outlet 12 is arranged on the side wall, the air inlet 11 is arranged on the top surface of the shell 1, the layout is convenient, the air outlet 12 can be arranged on the bottom surface of the shell 1 under the condition that space is allowed, and the air inlet 11 can be arranged on the side wall of the shell 1. That is, the lower part of the housing 1 mentioned in the above embodiment includes both the lower part of the side wall of the housing 1 and the bottom surface of the housing 1, and the upper part of the housing 1 includes both the top surface of the housing 1 and the upper part of the side wall of the housing 1.
In some embodiments, the direction of the condenser inlet 21 to the condenser outlet 22 of the condenser 2 is opposite to the flow direction of the wind path. It will be appreciated that the direction from the condenser inlet 21 to the condenser outlet 22 is referred to as up-in-down-out or down-in-up-out. The spraying direction is from bottom to top, and the flow direction of the air is also from bottom to top, so that the condenser 2 is correspondingly from top to bottom, namely, the condenser inlet 21 is arranged above, the condenser outlet 22 is arranged below, and the temperature of one end of the condenser inlet 21 is lower, so that the temperature of one end of the condenser outlet 22 is lower, the air flows from bottom to top, the temperature is gradually increased, and finally, the air is discharged from the upper air outlet 12, namely, the temperature of the air is gradually increased from bottom to top, the direction of the temperature change of the air is the same as that of the condenser 2, and the secondary heating of the upper cold pipeline by hot air with higher temperature after heat exchange is avoided, which is caused by the reverse direction of the temperature increase of the condenser 2, so that the heat exchange efficiency is ensured. Correspondingly, under the condition that the spraying direction is from top to bottom and the flow direction of wind is also from top to bottom, the condenser 2 is correspondingly provided with a lower inlet and an upper outlet, namely the condenser inlet 21 is arranged below, the condenser outlet 22 is arranged above, and the temperature of the gas gradually rises from top to bottom, which is the same as the temperature change direction of the condenser 2, and the secondary heating of the hot gas with higher temperature on the upper part to the cold pipeline 7 on the upper part after the heat exchange of the upper part can be avoided, so that the heat exchange efficiency is ensured.
In some embodiments, at least two condensers 2 are arranged in the shell 1 at intervals along the horizontal direction, and spraying devices 3 are arranged corresponding to at least one condenser 2. The condensers 2 may be loaded with the same load or with different loads, and if the condensers 2 are loaded with different loads, the shower device 3 may or may not be provided according to the size of the load. That is, a local spray or a whole spray mode can be adopted. As shown in fig. 4, in the case of two condensers 2 which are spaced apart in the horizontal direction, the shower device 3 may be provided for only one of the condensers 2. The spraying device 3 may specifically adopt an upper spraying or lower spraying manner, in fig. 4, the lower spraying manner is that corresponding to the condenser 2, the spraying device 3 is disposed below at least a portion of the condenser, the spraying outlet 31 of the spraying device 3 is disposed upward, the corresponding air inlet 11 is disposed at the lower portion of the housing 1, and the air outlet 12 is disposed at the upper portion of the housing 1. In other embodiments, an upward spraying manner may be adopted, that is, the spraying device 3 is disposed above the condenser 2, the spraying outlet 31 of the spraying device 3 is disposed downward, the air inlet 11 is disposed at the upper portion of the housing 1, and the air outlet 12 is disposed at the lower portion of the housing 1.
In some embodiments, referring to fig. 5, the heat dissipation structure density of the condenser 2 near the air inlet 11 is smaller than the heat dissipation structure density near the air outlet 12. Taking the reverse forward flow as an example, the density of the heat dissipation structure below the condenser 2 is smaller than that above. Since part of the liquid in the condenser 2 is not completely vaporized and falls from top to bottom due to gravity, and occupies part of the space of the pipeline, in order to avoid the lower pipeline from blocking the upper pipeline, the condenser 2 preferably adopts a structure with lower and upper density, that is, the distribution density of the heat dissipation structures such as the heat dissipation tubes 23, the heat dissipation fins and the like of the condenser 2 adopts a mode that the upper density is high and the lower density is low, and the specific heat dissipation structure density can be gradually reduced from top to bottom. In fig. 5, a heat radiation structure is taken as an example of the heat radiation pipe 23, and a density change thereof is shown. In this embodiment, the arrangement of the air inlet 11 and the air outlet 12, and the arrangement of the spraying device 3 may refer to the above embodiments, and will not be described herein. It will be appreciated that for the downward spray, downward blow mode, the heat dissipation structure density in the upper portion of the condenser 2 is correspondingly set to be less than that in the lower portion.
In some embodiments, the condenser 2 comprises at least one of a tube-fin radiator, a tube radiator, a plate radiator. The structure and working principle of the above-mentioned one or more condensers 2 selected according to the factors of the corresponding load and application environment of the condensers 2, such as the specific tube fin radiator, tube radiator, and plate radiator, can refer to the prior art, and will not be described here again.
In some embodiments, the blower 4 includes a blower provided at the air inlet 11 and/or an exhaust blower provided at the air outlet 12. Namely, the fan 4 can be arranged on the air inlet side and/or the air outlet side of the air duct and correspondingly arranged according to factors such as the whole layout of the unit. In the embodiment shown in fig. 1-2, a blower is provided at the intake 11, and in the embodiment shown in fig. 3-6, an exhaust fan is provided at the outlet 12. Specifically, the blower 4 may be mounted to the housing 1. In other embodiments, the fan 4 may be disposed at other positions of the air path, so that the air inlet 11 can be used for air intake, and the air flows through the air path and is discharged from the air outlet 12.
In some embodiments, the evaporative condenser unit further includes a sump 5 provided at the bottom end of the housing 1 to receive the falling spray liquid. By providing the liquid collecting tank 5, the falling spray liquid can be collected so as to be reused. In other embodiments, a drain port may be provided at the bottom end of the housing 1 to collect and drain the falling spray liquid.
In some embodiments, the liquid collecting tank 5 is communicated with the spraying device 3 through a pipeline 7, and a liquid pump 6 for pumping the spraying liquid in the liquid collecting tank 5 to the spraying device 3 is arranged in the pipeline 7. Then a loop is formed through the liquid collecting tank 5, the liquid pump 6 and the spraying device 3, the liquid pump 6 pumps the spraying liquid in the liquid collecting tank 5 to the spraying device 3, the spraying liquid is sprayed out from a spraying outlet 31 of the spraying device 3, and condensate which finally falls down after full action with the condenser 2 is collected in the liquid collecting tank 5, so that the cyclic utilization of the spraying liquid is realized, and the spraying device 3 does not need to be externally connected with a liquid supply system. In other embodiments, the spraying device 3 may also be provided with an interface, and is externally connected with a liquid supply system in operation, and the liquid supply system also comprises a liquid tank and a liquid pump, and the spraying liquid in the liquid tank is pumped to the spraying device 3 through the liquid pump.
In some embodiments, referring to fig. 1-6, the water deflector 8 is further included between the air outlet 12 and the condenser 2. By providing the water deflector 8, the vapor is condensed after passing through the water deflector 8, becomes liquid again, and can flow back to the condenser 2. Therefore, by the arrangement of the water baffle device 8, the spray liquid is effectively saved.
In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
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| CN117168220A (en) * | 2023-08-30 | 2023-12-05 | 江苏德望新能源科技有限公司 | Cooling water recovery system applied to natural ventilation cooling |
| CN117870400A (en) * | 2024-02-20 | 2024-04-12 | 江苏德望新能源科技有限公司 | A closed dry-wet combined cooling tower for forced ventilation |
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| CN219656661U (en) * | 2022-12-29 | 2023-09-08 | 深圳市英维克科技股份有限公司 | Evaporation type condenser unit |
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| CN110617717A (en) * | 2019-10-24 | 2019-12-27 | 大连理工大学 | Concurrent flow type evaporative condenser |
| CN111878936A (en) * | 2020-06-28 | 2020-11-03 | 青岛海尔空调电子有限公司 | Air conditioner |
| CN113959015B (en) * | 2020-07-03 | 2026-03-06 | 深圳市刻酷科技有限公司 | Air outlet components and portable air conditioners |
| CN115379717B (en) * | 2022-07-12 | 2025-07-11 | 中通服咨询设计研究院有限公司 | An adaptive evaporative cooling heat pipe coupled air conditioning unit |
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| CN219656661U (en) * | 2022-12-29 | 2023-09-08 | 深圳市英维克科技股份有限公司 | Evaporation type condenser unit |
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