CN107062708A - A kind of elliptical tube evaporation cooling set - Google Patents
A kind of elliptical tube evaporation cooling set Download PDFInfo
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- CN107062708A CN107062708A CN201710160553.7A CN201710160553A CN107062708A CN 107062708 A CN107062708 A CN 107062708A CN 201710160553 A CN201710160553 A CN 201710160553A CN 107062708 A CN107062708 A CN 107062708A
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- pipe
- elliptical tube
- heat exchange
- water
- tube heat
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- 238000001816 cooling Methods 0.000 title claims abstract description 34
- 238000001704 evaporation Methods 0.000 title description 5
- 230000008020 evaporation Effects 0.000 title description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 100
- 238000009826 distribution Methods 0.000 claims abstract description 37
- 239000007788 liquid Substances 0.000 claims abstract description 27
- 239000003507 refrigerant Substances 0.000 claims description 18
- 230000004888 barrier function Effects 0.000 claims description 2
- 238000005057 refrigeration Methods 0.000 abstract description 8
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000009833 condensation Methods 0.000 description 8
- 230000005494 condensation Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 239000000498 cooling water Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000008929 regeneration Effects 0.000 description 3
- 238000011069 regeneration method Methods 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 238000004378 air conditioning Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B39/00—Evaporators; Condensers
- F25B39/04—Condensers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D5/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, using the cooling effect of natural or forced evaporation
- F28D5/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, using the cooling effect of natural or forced evaporation in which the evaporating medium flows in a continuous film or trickles freely over the conduits
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2339/00—Details of evaporators; Details of condensers
- F25B2339/04—Details of condensers
- F25B2339/041—Details of condensers of evaporative condensers
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
本发明公开了一种椭圆管蒸发冷却机组装置，包括布水系统、气体集管、若干椭圆管换热板、液体集管和循环水盘，所述椭圆管换热板的输入端均与气体集管连接，所述椭圆管换热板的输出端均与液体集管连接，所述循环水盘内设有椭圆管换热板，所述布水系统位于椭圆管换热板的上方，所述布水系统通过水泵与循环水盘连接，与现有技术相比，能够有效地改进椭圆管换热器内部结构增强其承压能力，将其应用于蒸发式冷凝器中，有效地解决了圆管换热器在蒸发冷却工况下结垢严重的问题，具有制冷效率高、节能的特点。
The invention discloses an elliptical tube evaporative cooling unit device, which includes a water distribution system, a gas header, several elliptical tube heat exchange plates, a liquid header and a circulating water pan. header connection, the output ends of the elliptical tube heat exchange plates are all connected to the liquid header, the elliptical tube heat exchange plate is arranged in the circulating water pan, and the water distribution system is located above the elliptical tube heat exchange plate. The water distribution system is connected with the circulating water pan through the water pump. Compared with the existing technology, it can effectively improve the internal structure of the elliptical tube heat exchanger and enhance its pressure bearing capacity. It is applied to the evaporative condenser and effectively solves the problem of The round tube heat exchanger has serious fouling problems under evaporative cooling conditions, and has the characteristics of high refrigeration efficiency and energy saving.
Description
【技术领域】【Technical field】
本发明涉及一种椭圆管蒸发冷却机组装置，属于暖通空调领域。The invention relates to an elliptical tube evaporative cooling unit device, which belongs to the field of heating, ventilating and air conditioning.
【背景技术】【Background technique】
蒸发冷却冷凝器是利用盘管外的喷淋水部分蒸发时吸收盘管内高温气态制冷剂的热量而使管内的制冷剂逐渐由气态被冷却为液态的一种设备。蒸发式冷却是效率最高的冷却方式，相较于传统的水冷、风冷系统节能10％-30％。开发初期，蒸发式冷却机组一般采用盘管式换热器，由于其结构容易形成干点、有背风面，造成换热效率低，在长期运行中结垢情况较为严重，导致其无法得到推广；为了改进盘管式换热器，椭圆管被用来替代圆管，加入到蒸发冷却机组中。椭圆管换热器具有较多优势：1.椭圆管外部流动特性较好，当流体沿椭圆长轴方向横掠时，相对椭圆管分离点后移，卡门涡街造成的流动损失减小。空气不会出现逃逸，空气运行时阻力较小，可适当降低风机能耗；2.可增加有效接触表面积，增强换热效果，对相同周长而言，由于椭圆管流通截面积比圆管小，若流量不变则扰动加强，管内对流换热得到强化。对管外情况而言，椭圆管外的平均换热效果优于圆管，由于椭圆近似于流线型，在允许相同的流动阻力下可提高流速，因而外部传热也可以得到强化。3.换热器结构紧凑，使单位体积的换热量增加；然而实践证明，冷凝侧换热器需要承受较大的压力，而椭圆管的制作工艺一般采用圆管压制技术，其能承受的压力无法达到要求，易造成泄露，使对其的应用目前只停留于空调领域，需要对其进行一定的改进，使其在制冷机组中得到较好的应用。The evaporative cooling condenser is a device that absorbs the heat of the high-temperature gaseous refrigerant in the coil when the spray water outside the coil partially evaporates, so that the refrigerant in the tube is gradually cooled from the gaseous state to the liquid state. Evaporative cooling is the most efficient cooling method, which can save energy by 10%-30% compared with traditional water-cooled and air-cooled systems. In the early stage of development, evaporative cooling units generally use coil heat exchangers. Because of its structure, it is easy to form dry spots and has a leeward side, resulting in low heat exchange efficiency. In the long-term operation, the fouling is serious, which makes it unable to be popularized; In order to improve the coil heat exchanger, oval tubes are used instead of round tubes and added to evaporative cooling units. The elliptical tube heat exchanger has many advantages: 1. The external flow characteristics of the elliptical tube are better. When the fluid sweeps along the long axis of the ellipse, the separation point of the elliptical tube moves backward, and the flow loss caused by the Karman vortex street is reduced. The air will not escape, and the resistance of the air is small when it is running, which can appropriately reduce the energy consumption of the fan; 2. It can increase the effective contact surface area and enhance the heat transfer effect. For the same circumference, the flow cross-sectional area of the elliptical tube is smaller than that of the round tube , if the flow rate is constant, the disturbance will be strengthened, and the convective heat transfer in the tube will be strengthened. For the case outside the tube, the average heat transfer effect outside the elliptical tube is better than that of the circular tube. Since the ellipse is similar to the streamline shape, the flow rate can be increased while allowing the same flow resistance, so the external heat transfer can also be enhanced. 3. The structure of the heat exchanger is compact, which increases the heat transfer per unit volume; however, practice has proved that the heat exchanger on the condensation side needs to withstand greater pressure, and the production process of the elliptical tube generally adopts the round tube pressing technology, which can withstand The pressure cannot meet the requirements, and it is easy to cause leakage, so its application is currently only in the field of air conditioning, and it needs to be improved to make it better used in refrigeration units.
【发明内容】【Content of invention】
本发明的目的就是解决现有技术中的问题，提出一种椭圆管蒸发冷却机组装置，能够有效地改进椭圆管换热器内部结构增强其承压能力，将其应用于蒸发式冷凝器中，有效地解决了圆管换热器在蒸发冷却工况下结垢严重的问题，具有制冷效率高、节能的特点。The purpose of the present invention is to solve the problems in the prior art, and propose an elliptical tube evaporative cooling unit device, which can effectively improve the internal structure of the elliptical tube heat exchanger and enhance its pressure bearing capacity, and apply it to the evaporative condenser. It effectively solves the serious fouling problem of the circular tube heat exchanger under the condition of evaporative cooling, and has the characteristics of high refrigeration efficiency and energy saving.
为实现上述目的，本发明提出了一种椭圆管蒸发冷却机组装置，包括布水系统、气体集管、若干椭圆管换热板、液体集管和循环水盘，所述椭圆管换热板的输入端均与气体集管连接，所述椭圆管换热板的输出端均与液体集管连接，所述循环水盘内设有椭圆管换热板，所述布水系统位于椭圆管换热板的上方，所述布水系统通过水泵与循环水盘连接。In order to achieve the above object, the present invention proposes an elliptical tube evaporative cooling unit device, which includes a water distribution system, a gas header, a number of elliptical tube heat exchange plates, a liquid header and a circulating water pan. The input ends are all connected to the gas header, the output ends of the elliptical tube heat exchange plates are all connected to the liquid header, the elliptical tube heat exchange plate is arranged in the circulating water pan, and the water distribution system is located in the elliptical tube heat exchange Above the board, the water distribution system is connected to the circulating water pan through a water pump.
作为优选，所述循环水盘的上端配合安装有罩盖布水系统和椭圆管换热板的立体箱体，所述布水系统和椭圆管换热板固定安装在立体箱体内，所述立体箱体的上端设有空气出口，所述空气出口内设有风机，所述立体箱体的左侧面和右侧面分别设有靠近循环水盘的左空气进口和右空气进口。As a preference, the upper end of the circulating water tray is equipped with a three-dimensional box with a cover water distribution system and an oval tube heat exchange plate, the water distribution system and the oval tube heat exchange plate are fixedly installed in the three-dimensional box, and the three-dimensional The upper end of the box is provided with an air outlet, the air outlet is provided with a fan, and the left side and the right side of the three-dimensional box are respectively provided with a left air inlet and a right air inlet close to the circulating water tray.
作为优选，所述立体箱体内在布水系统的上方设有挡水板。Preferably, a water baffle is provided above the water distribution system in the three-dimensional box.
作为优选，所述立体箱体的左侧面的上部设有与气体集管连接的制冷剂蒸气入口。Preferably, the upper part of the left side of the three-dimensional box is provided with a refrigerant vapor inlet connected to the gas header.
作为优选，所述布水系统由布水管和设在布水管下端的若干喷头构成，所述水泵的输入端和输出端分别通过抽水管与循环水盘和布水管连接。Preferably, the water distribution system is composed of a water distribution pipe and a number of nozzles arranged at the lower end of the water distribution pipe, and the input and output ends of the water pump are respectively connected to the circulating water pan and the water distribution pipe through a water suction pipe.
作为优选，所述椭圆管换热板的下端浸没于循环水盘内的液体中，所述循环水盘的前侧面设有与液体集管连接的制冷剂液体出口。Preferably, the lower end of the elliptical tube heat exchange plate is submerged in the liquid in the circulating water pan, and the front side of the circulating water pan is provided with a refrigerant liquid outlet connected to a liquid header.
作为优选，所述椭圆管换热板包括导热油输入管、导热油输出管、若干椭圆管、若干圆管、外螺纹和若干支撑，所述椭圆管横向设置并由上到下依次连接，所述相邻两个椭圆管之间连通，所述椭圆管内均通过若干支撑安装有若干圆管，所述圆管的外圈面上设有外螺纹，所述椭圆管的两端分别安装有前连接管和后连接管，所述椭圆管与前连接管和后连接管不连通，所述圆管的两端分别与前连接管和后连接管连通，所述前连接管的输出端与液体集管连接，所述后连接管的输入端与气体集管连接，所述最上层椭圆管的上端设有导热油输入管和导热油输出管。Preferably, the elliptical tube heat exchange plate includes a heat transfer oil input pipe, a heat transfer oil output pipe, several elliptical pipes, several round pipes, external threads and several supports, and the elliptical pipes are arranged horizontally and connected sequentially from top to bottom, so The two adjacent oval tubes are communicated with each other. Several round tubes are installed in the oval tubes through a number of supports. The outer ring surface of the round tubes is provided with external threads, and the two ends of the oval tubes are respectively equipped with front A connecting pipe and a rear connecting pipe, the oval pipe is not connected to the front connecting pipe and the rear connecting pipe, the two ends of the circular pipe are respectively connected to the front connecting pipe and the rear connecting pipe, and the output end of the front connecting pipe is connected to the liquid The header is connected, the input end of the rear connecting pipe is connected with the gas header, and the upper end of the uppermost elliptical pipe is provided with a heat transfer oil input pipe and a heat transfer oil output pipe.
作为优选，所述循环水盘的后侧面设有补水管。Preferably, a water supply pipe is provided on the rear side of the circulating water tray.
本发明的有益效果：本发明有效地改进椭圆管换热器内部结构增强其承压能力，在制冷循环的冷凝过程中，使其发挥节能、换热效率高等优势，并将其应用于蒸发式冷凝器中，有效地解决了圆管换热器在蒸发冷却工况下结垢严重的问题，同时利用循环水对制冷剂液体进行过冷处理，进一步提高制冷效率。另外，在采取溶液喷洒的蒸发冷凝方式时，利用机组运行特点可实现溶液再生。Beneficial effects of the present invention: the present invention effectively improves the internal structure of the elliptical tube heat exchanger to enhance its pressure bearing capacity, and enables it to exert the advantages of energy saving and high heat exchange efficiency in the condensation process of the refrigeration cycle, and applies it to evaporative heat exchangers. In the condenser, the serious fouling problem of the circular tube heat exchanger under the condition of evaporative cooling is effectively solved, and at the same time, the circulating water is used to supercool the refrigerant liquid to further improve the refrigeration efficiency. In addition, when the evaporation and condensation method of solution spraying is adopted, the solution regeneration can be realized by utilizing the operating characteristics of the unit.
本发明的特征及优点将通过实施例结合附图进行详细说明。The features and advantages of the present invention will be described in detail with reference to the accompanying drawings.
【附图说明】【Description of drawings】
图1是本发明一种椭圆管蒸发冷却机组装置的结构示意图；Fig. 1 is the structural representation of a kind of oval tube evaporative cooling unit device of the present invention;
图2是椭圆管换热板的结构示意图。Fig. 2 is a structural schematic diagram of an elliptical tube heat exchange plate.
图中：1-空气出口、2-风机、3-挡水板、4-布水系统、5-制冷剂蒸气入口、6-气体集管、7-椭圆管换热板、8-左空气进口、9-右空气进口、10-制冷剂液体出口、11-液体集管、12-循环水盘、13-抽水管、14-水泵、15-立体箱体、16-补水管、17-导热油输入管、18-导热油输出管、19-椭圆管、20-圆管、21-外螺纹、22-支撑、23-前连接管、24-后连接管、41-布水管、42-喷头。In the figure: 1-air outlet, 2-fan, 3-water baffle, 4-water distribution system, 5-refrigerant vapor inlet, 6-gas header, 7-elliptical tube heat exchange plate, 8-left air inlet , 9-right air inlet, 10-refrigerant liquid outlet, 11-liquid header, 12-circulating water pan, 13-suction pipe, 14-water pump, 15-stereo box, 16-water supply pipe, 17-heat transfer oil Input pipe, 18-heat transfer oil output pipe, 19-oval pipe, 20-round pipe, 21-external thread, 22-support, 23-front connecting pipe, 24-rear connecting pipe, 41-water distribution pipe, 42-nozzle.
【具体实施方式】【detailed description】
参阅图1、2，本发明一种椭圆管蒸发冷却机组装置，包括布水系统4、气体集管6、若干椭圆管换热板7、液体集管11和循环水盘12，所述椭圆管换热板7的输入端均与气体集管6连接，所述椭圆管换热板7的输出端均与液体集管11连接，所述循环水盘12内设有椭圆管换热板7，所述布水系统4位于椭圆管换热板7的上方，所述布水系统4通过水泵14与循环水盘12连接，所述循环水盘12的上端配合安装有罩盖布水系统4和椭圆管换热板7的立体箱体15，所述布水系统4和椭圆管换热板7固定安装在立体箱体15内，所述立体箱体15的上端设有空气出口1，所述空气出口1内设有风机2，所述立体箱体15的左侧面和右侧面分别设有靠近循环水盘12的左空气进口8和右空气进口9，所述立体箱体15内在布水系统4的上方设有挡水板3，所述立体箱体15的左侧面的上部设有与气体集管6连接的制冷剂蒸气入口5，所述布水系统4由布水管41和设在布水管41下端的若干喷头42构成，所述水泵14的输入端和输出端分别通过抽水管13与循环水盘12和布水管41连接，所述椭圆管换热板7的下端浸没于循环水盘12内的液体中，所述循环水盘12的前侧面设有与液体集管11连接的制冷剂液体出口10，所述椭圆管换热板7包括导热油输入管17、导热油输出管18、若干椭圆管19、若干圆管20、外螺纹21和若干支撑22，所述椭圆管19横向设置并由上到下依次连接，所述相邻两个椭圆管19之间连通，所述椭圆管19内均通过若干支撑22安装有若干圆管20，所述圆管20的外圈面上设有外螺纹21，所述椭圆管19的两端分别安装有前连接管23和后连接管24，所述椭圆管19与前连接管23和后连接管24不连通，所述圆管20的两端分别与前连接管23和后连接管24连通，所述前连接管23的输出端与液体集管11连接，所述后连接管24的输入端与气体集管6连接，所述最上层椭圆管19的上端设有导热油输入管17和导热油输出管18，所述循环水盘12的后侧面设有补水管16。Referring to Figures 1 and 2, an elliptical tube evaporative cooling unit device of the present invention includes a water distribution system 4, a gas header 6, a number of elliptical tube heat exchange plates 7, a liquid header 11 and a circulating water tray 12, and the elliptical tube The input ends of the heat exchange plates 7 are all connected to the gas header 6, the output ends of the elliptical tube heat exchange plates 7 are all connected to the liquid header 11, and the elliptical tube heat exchange plates 7 are arranged in the circulating water pan 12, The water distribution system 4 is located above the elliptical tube heat exchange plate 7, the water distribution system 4 is connected to the circulating water pan 12 through a water pump 14, and the upper end of the circulating water pan 12 is equipped with a cover water distribution system 4 and The three-dimensional box body 15 of the elliptical tube heat exchange plate 7, the water distribution system 4 and the oval tube heat exchange plate 7 are fixedly installed in the three-dimensional box body 15, the upper end of the three-dimensional box body 15 is provided with an air outlet 1, and the The air outlet 1 is provided with a blower fan 2, and the left side and the right side of the three-dimensional box body 15 are respectively provided with a left air inlet 8 and a right air inlet 9 close to the circulating water tray 12, and the three-dimensional box body 15 is internally arranged The top of the water system 4 is provided with a water baffle 3, the upper part of the left side of the three-dimensional box 15 is provided with a refrigerant vapor inlet 5 connected to the gas header 6, and the water distribution system 4 is composed of a water distribution pipe 41 and a device. A number of nozzles 42 are formed at the lower end of the water distribution pipe 41. The input and output ends of the water pump 14 are respectively connected to the circulating water pan 12 and the water distribution pipe 41 through the pumping pipe 13. The lower end of the oval tube heat exchange plate 7 is immersed in the circulating water. In the liquid in the pan 12, the front side of the circulating water pan 12 is provided with a refrigerant liquid outlet 10 connected to the liquid header 11, and the oval tube heat exchange plate 7 includes a heat transfer oil input pipe 17, a heat transfer oil output pipe 18. A number of oval tubes 19, a number of round tubes 20, external threads 21 and a number of supports 22, the oval tubes 19 are arranged horizontally and connected sequentially from top to bottom, the two adjacent oval tubes 19 are connected, and the Some round pipes 20 are installed in the oval pipe 19 through some supports 22, and the outer ring surface of the round pipe 20 is provided with external threads 21, and the two ends of the oval pipe 19 are respectively equipped with front connecting pipes 23 and rear connecting pipes. pipe 24, the oval pipe 19 is not connected with the front connecting pipe 23 and the rear connecting pipe 24, the two ends of the round pipe 20 are connected with the front connecting pipe 23 and the rear connecting pipe 24 respectively, the output of the front connecting pipe 23 end is connected to the liquid header 11, the input end of the rear connecting pipe 24 is connected to the gas header 6, and the upper end of the uppermost oval tube 19 is provided with a heat transfer oil input pipe 17 and a heat transfer oil output pipe 18, and the circulation A water supply pipe 16 is provided on the rear side of the water tray 12 .
其中导热油从导热油输入管17注入，若要泄油可从导热油输出管17排出，导热油充满于椭圆管19内部与圆管20外部之间，圆管外螺纹21用于增强圆管内制冷剂与导热油之间的换热效果，支撑22对圆管20进行支撑，并在一定程度上增强椭圆管承压能力。The heat transfer oil is injected from the heat transfer oil input pipe 17, and the oil can be discharged from the heat transfer oil output pipe 17 if the oil is to be drained. The heat transfer oil is filled between the inside of the oval pipe 19 and the outside of the round pipe 20, and the outer thread 21 of the round pipe is used to strengthen the inside of the round pipe. For the heat exchange effect between the refrigerant and the heat transfer oil, the support 22 supports the round tube 20 and enhances the pressure bearing capacity of the oval tube to a certain extent.
本发明工作过程：Working process of the present invention:
本发明一种椭圆管蒸发冷却机组装置在工作过程中：During the working process of an elliptical tube evaporative cooling unit device of the present invention:
制冷工况：布水系统4喷洒冷却水进行冷凝。Refrigeration working condition: water distribution system 4 sprays cooling water for condensation.
冷却水用水泵14送至布水系统4并喷淋到椭圆管换热板7上，并沿着椭圆管19外部进行交错、复迭流动，此流动特性可时刻对椭圆管19外管体进行冲刷处理，有效减少结垢，并具备较强的换热效果。未蒸发的冷却水流入循环水盘12中。制冷剂蒸气通过制冷剂蒸气入口5进入气体集管6，分配给每一个椭圆管换热板7，并均匀进入每个椭圆管19内的圆管20内。依靠冷却水的吸热和蒸发，通过导热油的热传递，圆管20内的制冷剂蒸气冷却冷凝。与此同时，风机2使空气从左空气进口8和右空气进口9进入，由下而上地在椭圆管19外水膜外表面吹过，并从空气出口1吹出，将水膜表面蒸发的水蒸气及时带走，创造水膜能够连续不断蒸发的有利条件，为了减少蒸发式冷却器循环水吹散夹带，在立体箱体15上部设置挡水板3，并设置补水管16补充新鲜水。另外，将椭圆管换热板7下端部分浸没于循环水盘12循环液体内，对制冷剂液体进行进一步的过冷处理，可有效地提高制冷效率。The cooling water is sent to the water distribution system 4 by the water pump 14 and sprayed onto the elliptical tube heat exchange plate 7, and flows along the outside of the elliptical tube 19 in a staggered and overlapping manner. Washing treatment can effectively reduce scaling and have a strong heat exchange effect. The non-evaporated cooling water flows into the circulating water pan 12 . The refrigerant vapor enters the gas header 6 through the refrigerant vapor inlet 5 , is distributed to each elliptical tube heat exchange plate 7 , and evenly enters the circular tube 20 in each elliptical tube 19 . Relying on the heat absorption and evaporation of the cooling water and the heat transfer of the heat transfer oil, the refrigerant vapor in the circular tube 20 is cooled and condensed. At the same time, fan 2 makes air enter from left air inlet 8 and right air inlet 9, blows over the outer surface of water film outside oval tube 19 from bottom to top, and blows out from air outlet 1, evaporates the water film surface The water vapor is taken away in time to create favorable conditions for the continuous evaporation of the water film. In order to reduce the blowing and entrainment of the circulating water of the evaporative cooler, a water barrier 3 is set on the upper part of the three-dimensional box 15, and a water supply pipe 16 is set to replenish fresh water. In addition, the lower end of the elliptical tube heat exchange plate 7 is submerged in the circulating liquid of the circulating water pan 12 to further supercool the refrigerant liquid, which can effectively improve the cooling efficiency.
制热工况：冬季将冷却水换成冷却溶液，布水系统4喷洒冷却溶液进行冷凝。Heating working condition: In winter, the cooling water is replaced with a cooling solution, and the water distribution system 4 sprays the cooling solution for condensation.
使用冷却溶液进行蒸发冷却时，虽然冷却溶液会吸收一部分空气中的水分而稀释，但同时冷却溶液中一部分的水分将在制冷剂冷凝过程中，吸收热量而蒸发，随着流动空气通过空气出口1被吹出，冷却溶液浓度增大，可实现冷却溶液再生。When the cooling solution is used for evaporative cooling, although the cooling solution will absorb a part of the moisture in the air and be diluted, but at the same time, a part of the moisture in the cooling solution will absorb heat and evaporate during the condensation process of the refrigerant, and as the flowing air passes through the air outlet 1 When it is blown out, the concentration of the cooling solution increases, and the regeneration of the cooling solution can be realized.
本发明有效地改进椭圆管换热器内部结构增强其承压能力，在制冷循环的冷凝过程中，使其发挥节能、换热效率高等优势，并将其应用于蒸发式冷凝器中，有效地解决了圆管换热器在蒸发冷却工况下结垢严重的问题，同时利用循环水对制冷剂液体进行过冷处理，进一步提高制冷效率。另外，在采取溶液喷洒的蒸发冷凝方式时，利用机组运行特点可实现溶液再生。The invention effectively improves the internal structure of the elliptical tube heat exchanger to enhance its pressure bearing capacity, and makes it exert the advantages of energy saving and high heat exchange efficiency in the condensation process of the refrigeration cycle, and applies it to the evaporative condenser, effectively It solves the serious fouling problem of the circular tube heat exchanger under the condition of evaporative cooling, and at the same time uses circulating water to supercool the refrigerant liquid to further improve the refrigeration efficiency. In addition, when the evaporation and condensation method of solution spraying is adopted, the solution regeneration can be realized by utilizing the operating characteristics of the unit.
上述实施例是对本发明的说明，不是对本发明的限定，任何对本发明简单变换后的方案均属于本发明的保护范围。The above-mentioned embodiment is an illustration of the present invention, not a limitation of the present invention, and any solution after a simple transformation of the present invention belongs to the protection scope of the present invention.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111473665A (en) * | 2020-05-13 | 2020-07-31 | 瀚润联合高科技发展（北京）有限公司 | Cascade evaporation condensation heat exchanger |
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| CN2859381Y (en) * | 2005-10-07 | 2007-01-17 | 金兴才 | Evaporative compressor condensing unit |
| KR20080040173A (en) * | 2006-11-02 | 2008-05-08 | 주식회사 대우일렉트로닉스 | Condenser chiller |
| US20140209279A1 (en) * | 2012-12-03 | 2014-07-31 | Baltimore Aircoil Company, Inc. | Indirect heat exchanger |
| CN106382771A (en) * | 2016-10-04 | 2017-02-08 | 枣庄宝武机电科技开发有限公司 | Water consumption avoiding, incrustation-free and energy-saving composite condenser internally provided with heat exchange pipe row |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2859381Y (en) * | 2005-10-07 | 2007-01-17 | 金兴才 | Evaporative compressor condensing unit |
| KR20080040173A (en) * | 2006-11-02 | 2008-05-08 | 주식회사 대우일렉트로닉스 | Condenser chiller |
| US20140209279A1 (en) * | 2012-12-03 | 2014-07-31 | Baltimore Aircoil Company, Inc. | Indirect heat exchanger |
| CN106382771A (en) * | 2016-10-04 | 2017-02-08 | 枣庄宝武机电科技开发有限公司 | Water consumption avoiding, incrustation-free and energy-saving composite condenser internally provided with heat exchange pipe row |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111473665A (en) * | 2020-05-13 | 2020-07-31 | 瀚润联合高科技发展（北京）有限公司 | Cascade evaporation condensation heat exchanger |
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