空冷冷凝器的相变辅助冷却装置及空冷冷凝器Phase change auxiliary cooling device and air cooling condenser for air-cooled condenser
本发明涉及用于空调、冷冻、冷藏等装置内的冷凝器的辅助冷却技术，特别是涉及一种空冷冷凝器的相变辅助冷却装置及空冷冷凝器。The present invention relates to an auxiliary cooling technique for a condenser in an air conditioning, freezing, refrigeration, etc., and more particularly to a phase change auxiliary cooling device and an air cooling condenser for an air cooled condenser.
用于空调、冷冻、冷藏等装置的冷凝器，根据热交换方式有水冷式和空冷式。水冷式的热交换效率高，且在夏天高温时也能保持稳定的库内、室内温度，但是，其装置构造复杂且造价高，且在缺水地区不适用。The condenser used for air conditioning, freezing, refrigeration, etc. is water-cooled and air-cooled depending on the heat exchange method. The water-cooled heat exchange efficiency is high, and the stable internal temperature and indoor temperature can be maintained even in high temperatures in summer. However, the structure of the device is complicated and high in cost, and is not applicable in water-deficient areas.
源于水资源的紧迫性，缺水地区空冷技术已得到应用，空冷以其显著的节水效果被人们所关注，同时其装置构造简单、造价低，但是在夏天高温时，对于低温工艺介质的冷却，特别是要求工艺介质出口温度冷却到接近环境湿球温度时，普通空冷系统冷却效率降低，难以做到。近年来随着冷却技术的深化发展，一种新型空冷系统——喷淋水式蒸发空冷系统得以推广应用。Due to the urgency of water resources, air-cooling technology has been applied in water-scarce areas. Air-cooling has attracted people's attention because of its remarkable water-saving effect. At the same time, its device structure is simple and low in cost, but in the summer, it is low-temperature process medium. Cooling, especially when the process medium outlet temperature is required to cool to near the ambient wet bulb temperature, the cooling efficiency of the conventional air cooling system is lowered, which is difficult to achieve. In recent years, with the deepening of cooling technology, a new type of air cooling system, spray water evaporative air cooling system, has been promoted and applied.
中国实用新型专利CN 201488409 U，名称为干湿混合冷凝器，包括散热器、供水管、水泵、喷管嘴和风机，水泵的工作启动与关闭通过温度传感器从制冷剂流道冷媒管采集温度信号，当超过标准工况时启动水泵喷洒，以湿工况工作，温度传感器从制冷剂流道冷媒管采集温度信号低于标准工况时关闭水泵，保持干式工况运行，通过水泵增压喷洒雾化水，不仅使散热器具有显热交换，而且还有传质交换，部分水蒸发成水蒸气，气化潜热带走大量热量。China utility model patent CN 201488409 U, the name is dry and wet mixed condenser, including radiator, water supply pipe, water pump, nozzle nozzle and fan. The pump starts and shuts down. The temperature sensor collects the temperature signal from the refrigerant channel refrigerant pipe. When the standard working condition is exceeded, the water pump is sprayed to work in wet working condition. When the temperature sensor collects the temperature signal from the refrigerant flow channel refrigerant tube and the temperature is lower than the standard working condition, the water pump is turned off, the dry working condition is maintained, and the water pump is pressurized. The atomized water not only makes the radiator have sensible heat exchange, but also has mass transfer, some water evaporates into water vapor, and the gasification subtropical zone takes a lot of heat.
但是，上述现有技术对散热片直接洒水方式的辅助冷却装置，在夏天时可以提高冷却效率，但经过长时间运行，散热器表面容易附着水垢、水锈等，因此导致热交换效率降低或散热片腐蚀等不利情况。However, the above-mentioned prior art auxiliary cooling device for directly spraying the heat sink can improve the cooling efficiency in the summer, but after a long period of operation, the surface of the radiator is likely to adhere to scale, rust, etc., thereby causing a decrease in heat exchange efficiency or heat dissipation. Unfavorable conditions such as corrosion of the sheet.
中国CN 100572989 C公开一种冷凝器的辅助冷却装置，在冷凝器的散热片附近、在距散热片一定距离的位置上设置冷却垫，在冷却垫上流下冷却水以冷却冷凝器的吸入空气。在冷却垫的上部设置洒水桶，在下部设置排水桶，洒水桶和排水桶之间配置有用于使冷却水循环的泵，这样水不直接喷在散热器表面上，不会在散热片表面上附着水垢、水锈等，但是其辅助冷却装置采用冷却垫，在使用一段时间后,表面上容易附着土、尘埃等脏物，造成过滤器堵塞而降低冷却效率，同时容易滋养细菌等；另一方面，冷却水直接淋在冷却垫上，在冷却垫表面上会
形成一层水膜，这层水膜和冷却垫会极大的增加风机的阻力；冷却水循环使用，也增加了水泵的功耗。China CN 100572989 C discloses an auxiliary cooling device for a condenser. A cooling pad is arranged at a distance from the heat sink near the heat sink of the condenser, and cooling water is drained on the cooling pad to cool the suction air of the condenser. A sprinkler is arranged on the upper part of the cooling pad, and a drain bucket is arranged in the lower part, and a pump for circulating the cooling water is arranged between the sprinkling bucket and the drain bucket, so that the water is not directly sprayed on the surface of the heat sink, and does not adhere on the surface of the heat sink. Scale, rust, etc., but the auxiliary cooling device uses a cooling pad. After a period of use, dirt, dust, and the like are easily adhered to the surface, causing clogging of the filter to reduce cooling efficiency and easily nourishing bacteria; The cooling water is directly poured on the cooling pad, and will be on the surface of the cooling pad.
A layer of water film is formed. This layer of water film and cooling pad will greatly increase the resistance of the fan; the cooling water circulation will also increase the power consumption of the pump.
发明内容Summary of the invention
鉴于以上所述现有技术的缺点，本发明的目的在于提供一种空冷冷凝器的相变辅助冷却装置及空冷冷凝器，用于解决现有技术中存在的上述问题。In view of the above-discussed shortcomings of the prior art, it is an object of the present invention to provide a phase change auxiliary cooling device and an air cooling condenser for an air-cooled condenser for solving the above problems in the prior art.
为实现上述目的及其他相关目的，本发明提供一种空冷冷凝器的相变辅助冷却装置，其包括带有进风口和出风口的冷却腔，以及置于冷却腔内与水管相连的雾化器，所述冷却腔置于所述空冷冷凝器进风侧且与所述空冷冷凝器相贯通。To achieve the above and other related objects, the present invention provides a phase change auxiliary cooling device for an air-cooled condenser, comprising a cooling chamber having an air inlet and an air outlet, and an atomizer disposed in the cooling chamber and connected to the water pipe. The cooling chamber is placed on the air inlet side of the air-cooling condenser and penetrates the air-cooling condenser.
优选的，还包括与所述水管相连的水泵、水箱，以及设于所述水管上的控制阀。Preferably, the utility model further comprises a water pump connected to the water pipe, a water tank, and a control valve provided on the water pipe.
优选的，还包括控制所述雾化器喷雾的控制系统，控制系统包括控制器、设于所述冷却腔内的温度传感器，以及所述控制阀和所述水泵的驱动电机，所述温度传感器、控制阀和驱动电机均与所述控制器相连。Preferably, further comprising a control system for controlling the atomizer spray, the control system comprising a controller, a temperature sensor disposed in the cooling chamber, and a control motor and a driving motor of the water pump, the temperature sensor The control valve and the drive motor are all connected to the controller.
优选的，所述水箱与所述蒸发器的冷凝水排出管相连。Preferably, the water tank is connected to a condensate drain pipe of the evaporator.
优选的，所述雾化器朝向所述进风口处喷雾。Preferably, the atomizer is sprayed toward the air inlet.
优选的，所述雾化器与冷却腔内的风向垂直朝上或朝下喷雾。Preferably, the atomizer is sprayed vertically upwards or downwards with the wind direction in the cooling chamber.
优选的，所述雾化器的喷头可为旋流式喷头、碰撞式喷头或组合式喷头。Preferably, the nozzle of the atomizer can be a swirling nozzle, a collision nozzle or a combined nozzle.
优选的，所述冷却腔的进风口与出风口处均设有格栅。Preferably, a grille is disposed at both the air inlet and the air outlet of the cooling chamber.
本发明还提供一种空冷冷凝器，所述空冷冷凝器上设有如上所述的相变辅助冷却装置。The present invention also provides an air-cooled condenser having a phase change auxiliary cooling device as described above.
As described above, the phase change auxiliary cooling device and the air cooling condenser of the air-cooled condenser of the present invention have the following beneficial effects: the cooling method of the spray phase change cooling is used to reduce the air temperature of the air-cooled condenser inlet and increase the heat dissipation efficiency of the cooling side. Improve the economic performance of air conditioners and other devices, so that water is not directly sprayed on the surface of the radiator, and no scale, rust, etc. are attached to the surface of the fins. The mist sprayed by the sprayer is in direct contact with the air, without filler, and will not The dirt on the surface of the packing adheres to dirt, dust and other dirt, which causes the filter to become clogged and reduces the cooling efficiency. At the same time, the air does not need to pass through the water film and the filler, the fan resistance is small, the power consumption is small, and the cooling water spray and the air heat exchange sprayed by the sprayer After all, it is evaporated into water vapor, no residual water is discharged, the pump has less water, and the least energy is used to achieve the maximum energy saving effect, and the pump power consumption is small.
图1显示为本发明的空冷冷凝器示意图。Figure 1 shows a schematic view of an air cooled condenser of the present invention.
元件标号说明Component label description
1 空冷冷凝器1 air cooled condenser
2 风扇2 fan
3 雾化器3 nebulizer
4 冷却腔4 cooling chamber
41 进风口41 air inlet
42 出风口42 air outlet
5 水管5 water pipes
6 控制阀6 control valve
7 控制器7 controller
8 水泵8 water pump
9 压缩机9 compressor
10 水箱10 water tank
11 温度传感器11 temperature sensor
12 干燥器12 dryer
13 膨胀阀13 expansion valve
14 蒸发器14 evaporator
15 气道15 airways
以下由特定的具体实施例说明本发明的实施方式，熟悉此技术的人士可由本说明书所揭露的内容轻易地了解本发明的其他优点及功效。The embodiments of the present invention are described below by way of specific embodiments, and those skilled in the art can readily understand other advantages and functions of the present invention from the disclosure.
的明了，而非用以限定本发明可实施的范围，其相对关系的改变或调整，在无实质变更技术内容下，当亦视为本发明可实施的范畴。Please refer to Figure 1. It should be understood that the structures, the proportions, the sizes, and the like, which are illustrated in the specification of the present specification, are only used to clarify the contents disclosed in the specification for understanding and reading by those skilled in the art, and are not intended to limit the implementation of the present invention. The conditions are limited, so it is not technically meaningful. Any modification of the structure, change of the proportional relationship or adjustment of the size should remain in the present invention without affecting the effects and the achievable purposes of the present invention. The disclosed technical content is within the scope of the disclosure. At the same time, the terms "upper", "lower", "left", "right", "intermediate" and "one" as quoted in this specification are also for convenience only.
It is to be understood that the scope of the invention is not limited by the scope of the invention.
如图1所示，本发明提供一种空冷冷凝器的相变辅助冷却装置，其包括带有进风口41和出风口42的冷却腔4，以及置于冷却腔4内与水管5相连的雾化器3，冷却腔4置于空冷冷凝器进风侧且与空冷冷凝器1相贯通。本发明采用在空冷冷凝器的进风侧设置与之相通的冷却腔，为便于实施，上述冷却腔与空冷冷凝器间设有气道15，两者通过气道15相连通，在冷却腔内设置雾化器，雾化器喷出的水雾冷却空气，由于冷却腔内没有填充介质也没有其他阻挡空气进入空冷冷凝器的障碍物，所以不会产生污垢以及损耗大等问题。As shown in FIG. 1, the present invention provides a phase change auxiliary cooling device for an air-cooled condenser, which comprises a cooling chamber 4 with an air inlet 41 and an air outlet 42, and a mist placed in the cooling chamber 4 connected to the water pipe 5. The cooling device 4 is placed on the air inlet side of the air-cooling condenser and is connected to the air-cooling condenser 1. The invention adopts a cooling chamber connected to the air inlet side of the air-cooling condenser. For the convenience of implementation, an air passage 15 is arranged between the cooling chamber and the air-cooling condenser, and the two are connected through the air passage 15 in the cooling chamber. The atomizer is arranged, and the water mist sprayed by the atomizer cools the air. Since there is no filling medium in the cooling chamber and there are no obstacles that block air from entering the air-cooling condenser, there is no problem of dirt and loss.
还包括与上述水管相连的水泵8、水箱10，以及设于水管5上的控制阀6，以及控制雾化器3喷雾的控制系统，控制系统包括控制器7、设于冷却腔4出风口42处的温度传感器11，以及控制阀6和水泵8的驱动电机，温度传感器11、控制阀6和驱动电机均与控制器7相连。上述水箱10与蒸发器14的冷凝水排出管相连，空调在制冷过程中会产生大量的冷凝水，这些冷凝水温度较低，目前一般都是被自由排放到室外，无法进行利用，而且会影响周边环境，本发明可以将空调产生的冷凝水收集起来排到水箱10中提供给雾化使用。雾化需要的水也可由外界补给自来水或地下水等。The utility model further comprises a water pump 8 connected to the water pipe, a water tank 10, a control valve 6 disposed on the water pipe 5, and a control system for controlling the spray of the atomizer 3. The control system comprises a controller 7 and is disposed at the air outlet 42 of the cooling chamber 4. The temperature sensor 11 at the place, and the drive motor of the control valve 6 and the water pump 8, the temperature sensor 11, the control valve 6, and the drive motor are all connected to the controller 7. The water tank 10 is connected to the condensate drain pipe of the evaporator 14, and the air conditioner generates a large amount of condensed water during the cooling process. These condensed waters have a low temperature and are generally freely discharged to the outside, cannot be utilized, and may affect In the surrounding environment, the present invention can collect the condensed water generated by the air conditioner and discharge it into the water tank 10 for use in atomization. The water required for atomization can also be supplied with tap water or ground water from the outside.
上述雾化器3的喷雾方向可以设置为：雾化器3朝向进风口41处喷雾，也可以与冷却腔内风向垂直朝上或朝下喷雾。雾化器3的喷头可为旋流式喷头、碰撞式喷头或组合式喷头，喷淋的冷却水和空气热交换后全部蒸发成水蒸气，无余水排放。The spray direction of the atomizer 3 described above may be set such that the atomizer 3 is sprayed toward the air inlet 41, or may be sprayed vertically upward or downward with the wind direction in the cooling chamber. The nozzle of the atomizer 3 can be a swirling nozzle, a collision nozzle or a combined nozzle, and the shower cooling water and the air are all evaporated into water vapor after heat exchange, and no residual water is discharged.
冷却腔4的进风口41与出风口42处均设有格栅，出风口的形状可将空冷冷凝器1的空气吸入面(即进风侧面)覆盖为好。另外该冷却腔4可以通过支撑部安装在空冷冷凝器1上。A grille is provided at both the air inlet 41 and the air outlet 42 of the cooling chamber 4. The shape of the air outlet can cover the air intake surface (ie, the air inlet side) of the air-cooling condenser 1 as well. Further, the cooling chamber 4 can be mounted on the air-cooled condenser 1 through a support portion.
本发明还提供一种空冷冷凝器，该空冷冷凝器上设有如上所述的相变辅助冷却装置。见图1所示，图中所示的冷却循环与现有技术相同，压缩机9、空冷冷凝器1、干燥器12、膨胀阀13和蒸发器14，由冷却介质管连接构成冷却循环，在空冷冷凝器1旁设有风扇2。The present invention also provides an air-cooled condenser having a phase change auxiliary cooling device as described above. As shown in Fig. 1, the cooling cycle shown in the figure is the same as in the prior art, and the compressor 9, the air-cooled condenser 1, the dryer 12, the expansion valve 13, and the evaporator 14 are connected by a cooling medium pipe to constitute a cooling cycle. A fan 2 is provided next to the air-cooled condenser 1.
度T0，由温度传感器11实时监测介质出口处的实际温度T，当T≤T0时，控制器7控制电磁阀6关闭，此时仅依靠外界环境空气冷却，本实施例处于纯空冷运行模式。当T＞T0时，控制器7控制电磁阀6开启，此时依靠雾化器3喷雾冷却由进风口进来的空气，本实施例处于蒸发冷却模式，冷却水的流量由控制器7根据冷却腔出风口处的温度和热交换效率经计算决定，并由控制器7根据流量的计算值通过控制电磁阀6的开启角度而获得，随着环境空气温度的升高，控制喷水量，恰使空气降至其湿球温度附近(相对湿度95％)。When the embodiment is used, the air demand temperature T 0 at the cooling chamber air outlet 42 is input in advance in the control system, and the actual temperature T at the medium outlet is monitored by the temperature sensor 11 in real time. When T ≤ T 0 , the controller 7 controls The solenoid valve 6 is closed, and at this time, it is only cooled by the ambient air. This embodiment is in a pure air cooling mode. When T>T 0 , the controller 7 controls the solenoid valve 6 to be opened. At this time, the air entering from the air inlet is sprayed by the atomizer 3, and the embodiment is in the evaporative cooling mode, and the flow rate of the cooling water is cooled by the controller 7 according to the controller. The temperature and heat exchange efficiency at the air outlet are calculated and calculated by the controller 7 according to the calculated value of the flow rate by controlling the opening angle of the solenoid valve 6. As the ambient air temperature increases, the amount of water spray is controlled. Reduce the air to near its wet bulb temperature (relative humidity 95%).
上述只对冷却循环中配置了一个空冷冷凝器的情况进行了说明，也可以将两个空冷冷凝器对称的配置，冷却腔也可以分别设置在空冷冷凝器的空气流入侧，使其左右对称。In the above description, only one air-cooling condenser is disposed in the cooling cycle, and the two air-cooling condensers may be arranged symmetrically, and the cooling chambers may be respectively disposed on the air inflow side of the air-cooling condenser to be bilaterally symmetrical.
综上所述，本发明的空冷冷凝器的相变辅助冷却装置及空冷冷凝器，利用喷雾相变冷却的冷却方式，降低空冷冷凝器进口空气温度，增加冷却侧的散热效率,提高空调等装置的经济性能，这样水不直接喷在散热器表面上，不会在散热片表面上附着水垢、水锈等，喷雾器喷出的水雾和空气直接接触，无填料，不会在填料表面上附着土、尘埃等脏物而造成过滤器堵塞而降低冷却效率，同时空气不需要穿过水膜和填料，风机阻力小，功耗小，喷雾器喷出的冷却水雾和空气热交换后全部蒸发成水蒸气，无余水排放，水泵的循化水量少，用最少的水达到最大的节能效果，水泵功耗小。所以，本发明有效克服了现有技术中的种种缺点而具高度产业利用价值。In summary, the phase change auxiliary cooling device and the air-cooled condenser of the air-cooled condenser of the present invention use the cooling method of spray phase change cooling to reduce the air temperature of the air-cooled condenser inlet, increase the heat dissipation efficiency on the cooling side, and improve the air conditioner and the like. The economic performance, so that the water is not directly sprayed on the surface of the radiator, there will be no scale, rust, etc. on the surface of the heat sink. The mist sprayed by the sprayer is in direct contact with the air, without filler, and will not adhere to the surface of the filler. Soil, dust and other dirt cause the filter to become clogged and reduce the cooling efficiency. At the same time, the air does not need to pass through the water film and the filler. The fan has low resistance and low power consumption. The cooling water mist sprayed by the sprayer and the air are all evaporated after heat exchange. Water vapor, no residual water discharge, the pump has less water, and the least energy is used to achieve the maximum energy saving effect, and the pump power consumption is small. Therefore, the present invention effectively overcomes various shortcomings in the prior art and has high industrial utilization value.
The above-described embodiments are merely illustrative of the principles of the invention and its effects, and are not intended to limit the invention. Modifications or variations of the above-described embodiments may be made by those skilled in the art without departing from the spirit and scope of the invention. Therefore, all equivalent modifications or changes made by those skilled in the art without departing from the spirit and scope of the invention will be covered by the appended claims.