CN110806122A - Water film reconstruction tube type evaporative cooler - Google Patents
Water film reconstruction tube type evaporative cooler Download PDFInfo
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- CN110806122A CN110806122A CN201911114889.5A CN201911114889A CN110806122A CN 110806122 A CN110806122 A CN 110806122A CN 201911114889 A CN201911114889 A CN 201911114889A CN 110806122 A CN110806122 A CN 110806122A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 350
- 239000007921 spray Substances 0.000 claims abstract description 5
- 239000007788 liquid Substances 0.000 claims description 22
- 230000015572 biosynthetic process Effects 0.000 abstract description 11
- 238000012546 transfer Methods 0.000 description 9
- 238000004378 air conditioning Methods 0.000 description 6
- 238000001816 cooling Methods 0.000 description 4
- 238000005265 energy consumption Methods 0.000 description 4
- 239000012528 membrane Substances 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 238000000889 atomisation Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 238000007667 floating Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 229910001111 Fine metal Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
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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
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F25/00—Component parts of trickle coolers
- F28F25/02—Component parts of trickle coolers for distributing, circulating, and accumulating liquid
- F28F25/08—Splashing boards or grids, e.g. for converting liquid sprays into liquid films; Elements or beds for increasing the area of the contact surface
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- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
本发明提供一种水膜重构管式蒸发冷却器，包括布水系统、水膜重构系统、换热盘管、水膜重构系统支架、换热盘管支架和安全附件构成，所述布水系统包括吸水口、水泵、第一布水器、第二布水器、第三布水器和储水槽，所述水膜重构系统包括初水膜形成装置，第一水膜重构装置、第二水膜重构装置，所述换热盘管由多组并联的单元盘管构成，在单元盘管高度方向上依次垂直布置初水膜形成装置，第一水膜重构装置、第二水膜重构装置，喷淋水由第一布水器喷出，经初水膜形成装置，第一水膜重构装置和第二水膜重构装置，在水膜重构管式蒸发冷却器表面形成均匀、完整水膜，实现高效换热。
The invention provides a water film reconstruction tubular evaporative cooler, which comprises a water distribution system, a water film reconstruction system, a heat exchange coil, a water film reconstruction system support, a heat exchange coil support and safety accessories. The water distribution system includes a water suction port, a water pump, a first water distributor, a second water distributor, a third water distributor and a water storage tank, the water film reconstruction system includes a primary water film forming device, and the first water film reconstruction device, the second water film reconstruction device, the heat exchange coil is composed of multiple groups of parallel unit coils, and the primary water film formation device, the first water film reconstruction device, the first water film reconstruction device, the first water film reconstruction device, The second water film reconstruction device, the spray water is sprayed from the first water distributor, and passes through the primary water film forming device, the first water film reconstruction device and the second water film reconstruction device, and the water film reconstruction tube type The surface of the evaporative cooler forms a uniform and complete water film to achieve efficient heat exchange.
Description
技术领域technical field
本发明提供一种水膜重构管式蒸发冷却器，属换热器领域，旨在解决高速气流下，蒸发冷却器表面水膜均匀性、完整性差导致换热效率低的问题。The invention provides a water-film reconstruction tubular evaporative cooler, which belongs to the field of heat exchangers and aims to solve the problem of low heat exchange efficiency caused by poor uniformity and integrity of the water film on the surface of the evaporative cooler under high-speed airflow.
背景技术Background technique
现有蒸发冷却器多采用在换热盘管顶部布水，由于表面张力和粘滞力的作用，蒸发冷却器表面水膜的均匀性、完整性都不够理想，局部甚至为干涸面，而且水膜表面饱和空气压力与主流空气中水蒸气分压力差是蒸发冷却器传热传质过程推动力，传统的布水方式在蒸发冷却器表面形成水膜时，大部分水滴与空气直接作用，使得空气湿度显著增加，即空气中水蒸气分压力增大，水膜与空气的传热传质推动力降低，空气排热能力未能充分利用，故蒸发冷却器传热效率低。Most of the existing evaporative coolers use water distribution on the top of the heat exchange coil. Due to the effect of surface tension and viscous force, the uniformity and integrity of the water film on the surface of the evaporative cooler are not ideal, and some parts are even dry. The difference between the saturated air pressure on the membrane surface and the partial pressure of water vapor in the mainstream air is the driving force for the heat and mass transfer process of the evaporative cooler. When the traditional water distribution method forms a water film on the surface of the evaporative cooler, most of the water droplets directly interact with the air, making the The air humidity increases significantly, that is, the partial pressure of water vapor in the air increases, the driving force of heat and mass transfer between the water film and the air decreases, and the heat removal capacity of the air cannot be fully utilized, so the heat transfer efficiency of the evaporative cooler is low.
针对现有蒸发冷却器表面水膜均匀性、完整性较差的问题，申请人所在课题组提出利用“蒸发补水器(ZL2009103003918)”在换热器侧面布水，显著改善了水膜的均匀性和完整性，提高传质推动力。但由于该蒸发补水器利用水滴由喷嘴高速喷出的反作用力推动装置自动旋转，压缩空气的压力、空气量非常大，且空气压力远远大于喷雾所需压力，导致空气压缩机功率急剧增加，能源浪费严重。更严重的是，该布水装置的旋转体套装在进水通道上，旋转体与进水通道外壁构成空腔，通过轴承支撑旋转体，因此，该装置的运动部件与静止部件的摩擦力、密封性与装置推动力构成一系列互相制约的问题：1)如果要求密封性好，则装置摩擦力急剧增大，推动装置旋转所需动力也急剧增大，空压机功率剧增；2)如果要求密封性差，则泄漏严重，浪费大量压缩空气，也导致压缩机所需电机功率增大；3)水或压缩空气中的微小杂质或装置旋转运动中产生的细金属屑都能轻易卡在运动件与静止件之间的缝隙中，使装置频繁停止旋转，导致换热器无法排热，影响机组安全；4)布水器泄漏会使轴承的润滑油溅至换热器表面，严重削弱水膜的均匀性和完整性；5)压缩空气与水的过早接触，使得空气由水箱侧泄漏，且将水压回水箱而不得不把水泵压力提高到和压缩空气压力相近，远远大于雾化所需经济压力。In view of the problem of poor uniformity and integrity of the water film on the surface of the existing evaporative cooler, the applicant's research group proposed to use the "evaporative water replenisher (ZL2009103003918)" to distribute water on the side of the heat exchanger, which significantly improved the uniformity of the water film. and integrity, improving the driving force for mass transfer. However, because the evaporative water replenisher uses the reaction force of water droplets ejected from the nozzle at high speed to push the device to rotate automatically, the pressure and air volume of the compressed air are very large, and the air pressure is far greater than the pressure required for the spray, resulting in a sharp increase in the power of the air compressor. A serious waste of energy. More seriously, the rotating body of the water distribution device is sleeved on the water inlet channel, and the rotating body and the outer wall of the water inlet channel form a cavity, and the rotating body is supported by bearings. Therefore, the friction between the moving parts of the device and the static parts, The tightness and the driving force of the device constitute a series of problems that restrict each other: 1) If the tightness is required to be good, the friction force of the device will increase sharply, the power required to push the device to rotate will also increase sharply, and the power of the air compressor will increase sharply; 2) If poor sealing is required, the leakage will be serious, a large amount of compressed air will be wasted, and the motor power required by the compressor will also increase; 3) The tiny impurities in the water or compressed air or the fine metal chips generated in the rotating motion of the device can be easily stuck in the In the gap between the moving part and the static part, the device frequently stops rotating, which makes the heat exchanger unable to discharge heat and affects the safety of the unit; 4) The leakage of the water distributor will cause the lubricating oil of the bearing to splash on the surface of the heat exchanger, seriously weakening the The uniformity and integrity of the water film; 5) The premature contact between the compressed air and the water causes the air to leak from the side of the water tank, and the water is pressed back to the water tank, so the pump pressure has to be increased to be similar to the compressed air pressure, far greater than that of the compressed air. Economic pressure required for atomization.
针对上述问题，申请人提出采用电动机提供旋转动力，解决运行能耗大和运行不稳定等上述问题，并基于该方案开发了“旋转布水器(ZL2011103411312)”、“两侧旋转布水器空气雾化输配装置(ZL2013201382945)”、“两侧旋转布水器压力雾化输配装置(ZL2013201382945)”和“两侧旋转布水间接蒸发冷却器(ZL2013201383026)”等系列设备技术。该系列技术解决了“蒸发补水器(ZL2009103003918)”存在的所有问题，现现有蒸发冷却器相比，性能提高了约80％，但空气排热能力利用率存在一个低于研究预期的极限值，在该极限值之后，无论如何强化水膜性能，换热效率都不再提高，某些情况下甚至还降低(国家自然科学基金项目：51406015)，其原因在于：1、两侧布水在显著改善水膜性能、强化水膜与壁面换热的同时，喷淋水液滴仍然在一定程度上削弱空气的潜热交换能力，部分雾化的液滴与空气直接进行热质交换，未参与排除蒸发冷却器内部高温介质的热量，空气的排热能力未能得到最大限度的利用；2、水膜与壁面的换热系数太小，需要进一步强化水膜与壁面的换热。In view of the above problems, the applicant proposes to use electric motors to provide rotating power to solve the above problems such as high energy consumption and unstable operation. Chemical transmission and distribution device (ZL2013201382945)", "pressure atomization transmission and distribution device for rotary water distributor on both sides (ZL2013201382945)" and "indirect evaporative cooler for rotary water distribution on both sides (ZL2013201383026)" and other series of equipment technologies. This series of technologies solves all the problems of the "evaporative water replenisher (ZL2009103003918)". Compared with the existing evaporative coolers, the performance has been improved by about 80%, but the utilization rate of air heat removal capacity has a limit value lower than the research expectation , after the limit value, no matter how to strengthen the water film performance, the heat exchange efficiency will not improve, and even decrease in some cases (National Natural Science Foundation of China: 51406015), the reasons are: 1. The water distribution on both sides is While significantly improving the performance of the water film and strengthening the heat exchange between the water film and the wall, the spray water droplets still weaken the latent heat exchange capacity of the air to a certain extent, and the partially atomized droplets directly exchange heat and mass with the air and do not participate in the elimination The heat of the high-temperature medium inside the evaporative cooler and the heat removal capacity of the air cannot be utilized to the maximum extent; 2. The heat exchange coefficient between the water film and the wall is too small, and it is necessary to further strengthen the heat exchange between the water film and the wall.
鉴于“两侧旋转布水间接蒸发冷却器(ZL2013201383026)”优秀的换热性能，课题组将该设备安装于地铁地下车站空调地下排风坑道内，解决地铁工程建设中很难在地面上找到既满足冷却塔设置要求，又与周边环境协调的位置安装冷却塔的工程难题，同时回收地铁车站空调排风的能量，降低地铁车站建设的初投资和空调系统的运行能耗。研究发现，该设备应用于地铁地下工程空调系统时，其换热性能远远低于应用于其它空调工程，中型、大型蒸发冷却器的误差尤其显著，该设备现有技术并不适用于地铁地下空调工程，产生该问题的主要原因在于：1、地铁排风坑道内空气速度远远大于目前蒸发冷却器的空气速度，高速气流下蒸发冷却器表面表面水膜的均匀性、完整性远远低于常规气流速度的水膜均匀性、完整性；2、为了不增大地铁车站排风系统的阻力，申请人略微增大了盘管间距，进一步加剧了蒸发冷却器表面水膜的不均匀性，同时飘水现象更为严重，水膜与空气传热传质能力被严重削弱，空气的排热能力利用率低，如果不加大盘管间距，则车站排风系统能耗将大幅增加；3、蒸发冷却器盘管的高度方向上的水膜分布尤其不均匀，在蒸发冷却器盘管的一定高度之后，盘管表面水膜呈线状分布、流速极低，水膜与空气换热系数低，不能高效的排出蒸发冷却器内部高温介质的热量，故换热器性能低。In view of the excellent heat exchange performance of the "indirect evaporative cooler with rotating water distribution on both sides (ZL2013201383026)", the research group installed the equipment in the air-conditioned underground exhaust tunnel of the subway underground station to solve the problem that it is difficult to find the existing equipment on the ground during the construction of the subway project. The engineering problem of installing cooling towers in a location that meets the requirements of cooling towers and is in harmony with the surrounding environment, while recovering the energy of air-conditioning exhaust air in subway stations, reduces the initial investment in subway station construction and the operating energy consumption of air-conditioning systems. The study found that when the equipment is applied to the air-conditioning system of subway underground engineering, its heat exchange performance is far lower than that of other air-conditioning projects, and the error of medium and large evaporative coolers is particularly significant. The existing technology of this equipment is not suitable for subway underground engineering. In air-conditioning engineering, the main reasons for this problem are: 1. The air velocity in the subway exhaust tunnel is much higher than that of the current evaporative cooler, and the uniformity and integrity of the water film on the surface of the evaporative cooler under high-speed airflow is far lower 2. In order not to increase the resistance of the exhaust system of the subway station, the applicant slightly increased the spacing of the coils, which further aggravated the non-uniformity of the water film on the surface of the evaporative cooler. At the same time, the phenomenon of floating water is more serious, the heat and mass transfer capacity of the water film and the air is seriously weakened, and the utilization rate of the heat exhaust capacity of the air is low. If the coil spacing is not increased, the energy consumption of the station exhaust system will be greatly increased; 3 , The distribution of the water film in the height direction of the evaporative cooler coil is particularly uneven. After a certain height of the evaporative cooler coil, the water film on the surface of the coil is linearly distributed, the flow rate is extremely low, and the heat transfer coefficient between the water film and the air is very low. The heat of the high temperature medium inside the evaporative cooler cannot be efficiently discharged, so the performance of the heat exchanger is low.
因此，高速气流下，如何在蒸发冷却器表面形成均匀、完整水膜且不产生飘水问题，尽可能增大水膜与蒸发冷却器表面的换热系数，是确保蒸发冷却器在高速气流条件实现高效换热的关键。Therefore, under high-speed airflow, how to form a uniform and complete water film on the surface of the evaporative cooler without the problem of floating water, and increase the heat transfer coefficient between the water film and the surface of the evaporative cooler as much as possible, is to ensure that the evaporative cooler is in high-speed airflow conditions. The key to achieving efficient heat exchange.
发明内容SUMMARY OF THE INVENTION
本发明旨在提出了一种解决上述问题的水膜重构管式蒸发冷却器，具体是：The present invention aims to propose a water film reconstruction tubular evaporative cooler that solves the above problems, specifically:
水膜重构管式蒸发冷却器，包括布水系统、水膜重构系统、换热盘管、水膜重构系统支架、换热盘管支架和安全附件构成，布水系统包括吸水口、水泵、第一布水器、第二布水器、第三布水器和储水槽，其中第一布水器、第二布水器和第三布水器平行布置，水膜重构系统包括初水膜形成装置，第一水膜重构装置、第二水膜重构装置，其中初水膜形成装置，第一水膜重构装置、第二水膜重构装置平行布置，初水膜形成装置，第一水膜重构装置、第二水膜重构装置可采用板式结构水膜重构系统和槽式结构水膜重构系统，换热盘管由多组并联的单元盘管构成，在单元盘管高度方向上依次垂直布置初水膜形成装置，第一水膜重构装置、第二水膜重构装置，并联设置的单元盘管的入口、出口分别设置分液管、集液管，分液管、集液管与单元盘管分别通过分液活接头、集液活接头连接，水膜重构系统支架包括左支架、右支架、前导轨和后导轨，初水膜形成装置、第一水膜重构装置、第二水膜重构装置的左端、右端、前端和后端分别与左支架、右支架、前导轨和后导轨连接，高温介质由分液管进入并联设置的单元盘管，由集液管汇合流出，喷淋水由第一布水器喷出，经初水膜形成装置，第一水膜重构装置、第二水膜重构装置，在水膜重构管式蒸发冷却器表面形成均匀、完整水膜，实现高效换热。Water film reconstruction tubular evaporative cooler, including water distribution system, water film reconstruction system, heat exchange coil, water film reconstruction system bracket, heat exchange coil bracket and safety accessories. A water pump, a first water distributor, a second water distributor, a third water distributor and a water storage tank, wherein the first water distributor, the second water distributor and the third water distributor are arranged in parallel, and the water film reconstruction system includes The primary water film formation device, the first water film reconstruction device, and the second water film reconstruction device, wherein the primary water film formation device, the first water film reconstruction device, and the second water film reconstruction device are arranged in parallel, and the primary water film Forming device, the first water film reconstruction device and the second water film reconstruction device can adopt a plate structure water film reconstruction system and a trough structure water film reconstruction system, and the heat exchange coil is composed of multiple groups of parallel unit coils. The primary water film forming device, the first water film reconstruction device, and the second water film reconstruction device are arranged vertically in order in the height direction of the unit coil. The liquid pipe, the liquid distribution pipe, the liquid collection pipe and the unit coil are connected by the liquid distribution joint and the liquid collection joint respectively. The water film reconstruction system bracket includes the left bracket, the right bracket, the front rail and the rear rail. The left end, right end, front end and rear end of the device, the first water film reconstruction device and the second water film reconstruction device are respectively connected with the left bracket, the right bracket, the front rail and the rear rail, and the high-temperature medium enters the parallel setting through the liquid separator. The unit coils are merged and flow out from the liquid collecting pipe. The spray water is sprayed from the first water distributor, and passes through the primary water film forming device, the first water film reconstruction device, and the second water film reconstruction device. The surface of the reconstructed tubular evaporative cooler forms a uniform and complete water film to achieve efficient heat exchange.
进一步地，第二布水器和第三布水器根据水膜重构蒸发冷却器承担的负荷决定设置高度、开启周期和布水量。Further, the second water distributor and the third water distributor determine the setting height, the opening period and the water distribution amount according to the load borne by the water film reconstruction evaporative cooler.
进一步地，第一水膜重构装置、第二水膜重构装置根据水膜重构蒸发冷却器承担的负荷决定设置高度、第一水膜重构出水口和第二水膜重构出水口的宽度。Further, the first water film reconstruction device and the second water film reconstruction device determine the setting height, the first water film reconstruction water outlet and the second water film reconstruction water outlet according to the load borne by the water film reconstruction evaporative cooler. width.
进一步地，板式结构水膜重构系统由多个平行设置的布水槽构成，布水槽数量与单元盘管的数量相同，每个布水槽上设置以单元盘管中心线为对称轴、坡向单元盘管的板式汇水槽，板式汇水槽与单元盘管间设置板式出水口。Further, the plate structure water film reconstruction system is composed of a plurality of water distribution grooves arranged in parallel. The plate-type catchment tank of the coil, and the plate-type water outlet is set between the plate-type catchment tank and the unit coil.
进一步地，槽式结构水膜重构系统由平行设置的左布水槽、右布水槽构成，左布水槽、右布水槽的前端、后端分别与前导轨和后导轨连接，左布水槽、右布水槽上设置以单元盘管中心线为对称轴、坡向单元盘管的槽式汇水槽，槽式汇水槽与单元盘管间设置槽式出水口。Further, the trough structure water film reconstruction system is composed of a left water distribution tank and a right water distribution tank arranged in parallel. The water distribution tank is provided with a trough-type catchment trough with the center line of the unit coil as the symmetry axis and sloped to the unit coil, and a trough-type water outlet is arranged between the trough-type catchment tank and the unit coil.
本发明的主要创新点在于：The main innovation of the present invention is:
基于水膜重构管式蒸发冷却器所承担的负荷和水膜的均匀性、完整性、流速和厚度在盘管高度方向上的形成、发展、演化情况，利用初水膜形成装置在水膜重构管式蒸发冷却器表面形成均匀水膜，当水膜发展到不够均匀时，利用第一水膜重构装置第一次重构水膜，当水膜再次发展到不够均匀时，利用第二水膜重构装置在盘管高度方向上第二次形成均匀水膜，确保水膜重构管式蒸发冷却器盘管高度方向上的水膜始终保持均匀完整。Based on the load borne by the water film reconstruction tubular evaporative cooler and the formation, development and evolution of the uniformity, integrity, flow velocity and thickness of the water film in the height direction of the coil, the initial water film forming device is used to form the water film. A uniform water film is formed on the surface of the reconstructed tubular evaporative cooler. When the water film is not uniform enough, the first water film reconstruction device is used to reconstruct the water film for the first time. When the water film is not uniform again, the second water film is used. The secondary water film reconstruction device forms a uniform water film for the second time in the height direction of the coil, ensuring that the water film in the height direction of the water film reconstruction tubular evaporative cooler always remains uniform and complete.
在重构水膜期间，基于水膜重构管式蒸发冷却器所承担的负荷允许的水膜温度波动范围，确定第二布水器、第三布水器的设置高度、开启周期和布水量，最大化利用空气的排热能力。During the water film reconstruction, based on the water film temperature fluctuation range allowed by the load borne by the water film reconstruction tubular evaporative cooler, determine the setting height, opening period and water distribution amount of the second water distributor and the third water distributor, Maximize the heat removal capacity of the air.
在重构水膜期间，优化初水膜形成装置、第一水膜重构装置和第二水膜重构装置的初始水膜速度，基于水膜的均匀性、完整性指标优化水膜速度，尽可能提高水膜与壁面的换热系数。During the reconstruction of the water film, the initial water film speed of the initial water film formation device, the first water film reconstruction device and the second water film reconstruction device was optimized, and the water film speed was optimized based on the uniformity and integrity index of the water film, Improve the heat transfer coefficient between the water film and the wall as much as possible.
本发明的主要优点在于：The main advantages of the present invention are:
在高速气流下，保证水膜重构管式蒸发冷却器表面形成均匀完整水膜，尽可能提高水膜与壁面的换热系数，最大化利用水膜与空气的排热能力。Under the high-speed airflow, ensure that the surface of the water film reconstruction tubular evaporative cooler forms a uniform and complete water film, improve the heat transfer coefficient between the water film and the wall surface as much as possible, and maximize the heat removal capacity of the water film and the air.
解决地铁工程等地下工程建设中很难在地面上找到既满足冷却塔设置要求，又与周边环境协调的位置安装冷却塔的工程难题，为实现地下军事建筑“隐身”提供一种可行的排风处理方案和设备。Solve the engineering problem that it is difficult to find a location on the ground to install cooling towers that not only meet the requirements of cooling towers, but also coordinate with the surrounding environment in the construction of underground projects such as subway projects, and provide a feasible exhaust for the realization of "stealth" of underground military buildings Treatment programs and equipment.
回收地铁等地下建筑空调排风的能量，降低工程初投资和运行能耗。Recover the energy of the air-conditioning exhaust of underground buildings such as subways, and reduce the initial investment and operation energy consumption of the project.
附图说明Description of drawings
图1为本发明实施例一的水膜重构板式蒸发冷却器的主视示意图；1 is a schematic front view of a water film reconstruction plate evaporative cooler according to Embodiment 1 of the present invention;
图2为本发明实施例一的水膜重构板式蒸发冷却器的俯视示意图；2 is a schematic top view of a water film reconstruction plate evaporative cooler according to Embodiment 1 of the present invention;
图3为本发明实施例二的水膜重构板式蒸发冷却器的俯视示意图；3 is a schematic top view of the water film reconstruction plate evaporative cooler according to the second embodiment of the present invention;
图4为本发明实施例二的水膜重构板式蒸发冷却器的的结构示意图。FIG. 4 is a schematic structural diagram of the water film reconstruction plate evaporative cooler according to the second embodiment of the present invention.
具体实施方式Detailed ways
结合附图对本发明所述水膜重构管式蒸发冷却器做一步说明：The water film reconstruction tubular evaporative cooler of the present invention is described in one step with reference to the accompanying drawings:
实施例一：以板式结构水膜重构系统说明水膜重构管式蒸发冷却器的具体实施方式，具体参见图1和图2。Example 1: The specific implementation of the water film reconstruction tubular evaporative cooler is described with a plate structure water film reconstruction system, referring to FIG. 1 and FIG. 2 for details.
水膜重构管式蒸发冷却器，包括布水系统、水膜重构系统、换热盘管、水膜重构系统支架、换热盘管支架和安全附件构成，布水系统包括吸水口1、水泵2、第一布水器3、第二布水器4、第三布水器5和储水槽6，其中第一布水器3、第二布水器4和第三布水器5平行布置，水膜重构系统包括初水膜形成装置12，第一水膜重构装置13、第二水膜重构装置14，其中初水膜形成装置12，第一水膜重构装置13、第二水膜重构装置14平行布置，初水膜形成装置12，第一水膜重构装置13、第二水膜重构装置14可采用板式结构水膜重构系统，换热盘管由多组并联的单元盘管9构成，在单元盘管9高度方向上依次垂直布置初水膜形成装置12，第一水膜重构装置13、第二水膜重构装置14，并联设置的单元盘管9的入口、出口分别设置分液管7、集液管8，分液管7、集液管8与单元盘管9分别通过分液活接头10、集液活接头18连接，水膜重构系统支架包括左支架15、右支架16、前导轨27和后导轨17，初水膜形成装置12、第一水膜重构装置13、第二水膜重构装置14的左端、右端、前端和后端分别与左支架15、右支架16、前导轨27和后导轨17连接，高温介质由分液管7进入并联设置的单元盘管，由集液管8汇合流出，喷淋水由第一布水器3喷出，经初水膜形成装置12，第一水膜重构装置13、第二水膜重构装置14，在水膜重构管式蒸发冷却器表面形成均匀、完整水膜。Water film reconstruction tubular evaporative cooler, including water distribution system, water film reconstruction system, heat exchange coil, water film reconstruction system bracket, heat exchange coil bracket and safety accessories, water distribution system including water suction port 1 ,
基于水膜重构管式蒸发冷却器所承担的负荷和水膜的均匀性、完整性、流速和厚度在盘管高度方向上的形成、发展、演化情况，利用初水膜形成装置在水膜重构管式蒸发冷却器表面形成均匀水膜，当水膜发展到不够均匀时，利用第一水膜重构装置第一次重构水膜，当水膜再次发展到不够均匀时，利用第二水膜重构装置在盘管高度方向上第二次形成均匀水膜，确保水膜重构管式蒸发冷却器盘管高度方向上的水膜始终保持均匀完整。Based on the load borne by the water film reconstruction tubular evaporative cooler and the formation, development and evolution of the uniformity, integrity, flow velocity and thickness of the water film in the height direction of the coil, the initial water film forming device is used to form the water film. A uniform water film is formed on the surface of the reconstructed tubular evaporative cooler. When the water film is not uniform enough, the first water film reconstruction device is used to reconstruct the water film for the first time. When the water film is not uniform again, the second water film is used. The secondary water film reconstruction device forms a uniform water film for the second time in the height direction of the coil, ensuring that the water film in the height direction of the water film reconstruction tubular evaporative cooler always remains uniform and complete.
第二布水器4和第三布水器5根据水膜重构蒸发冷却器承担的负荷决定设置高度、开启周期和布水量。The second water distributor 4 and the third water distributor 5 determine the setting height, opening period and water distribution amount according to the load borne by the water film reconstruction evaporative cooler.
第一水膜重构装置13、第二水膜重构装置14根据水膜重构蒸发冷却器承担的负荷决定设置高度、第一水膜重构出水口25和第二水膜重构出水口26的宽度。The first water
板式结构水膜重构系统由多个平行设置的布水槽28构成，布水槽28数量与单元盘管9的数量相同，每个布水槽28上设置以单元盘管9中心线为对称轴、坡向单元盘管9的板式汇水槽19，板式汇水槽19与单元盘管9间设置板式出水口30。The plate structure water film reconstruction system is composed of a plurality of
实施例二：以槽式结构水膜重构系统说明水膜重构管式蒸发冷却器的具体实施方式，参见图3和图4。Example 2: The specific implementation of the water film reconstruction tubular evaporative cooler is described with a trough structure water film reconstruction system, see FIG. 3 and FIG. 4 .
在实施例一基础上，可采用以槽式结构水膜重构系统的实施例二，实施例二与实施例一的关键区别在于初水膜形成装置12，第一水膜重构装置13、第二水膜重构装置14采用的槽式结构水膜重构系统，如附图所示，槽式结构水膜重构系统由平行设置的左布水槽15、右布水槽16构成，左布水槽15、右布水槽16的前端、后端分别与前导轨27和后导轨17连接，左布水槽15、右布水槽16上设置以单元盘管9中心线为对称轴、坡向单元盘管9的槽式汇水槽20，槽式汇水槽20与单元盘管9间设置槽式出水口29。On the basis of the first embodiment, the second embodiment of the water film reconstruction system with a trough structure can be adopted. The key difference between the second embodiment and the first embodiment is that the initial water
实施例三：以槽式结构水膜重构系统和板式结构水膜重构系统的组合应用说明水膜重构管式蒸发冷却器的具体实施方式，Example 3: The specific implementation of the water film reconstruction tubular evaporative cooler is illustrated by the combined application of the trough structure water film reconstruction system and the plate structure water film reconstruction system,
实施例一和实施例二列举了水膜重构系统采用槽式结构水膜重构系统或板式结构水膜重构系统的技术方案，实际工程中还可采用水膜重构系统采用槽式结构水膜重构系统和板式结构水膜重构系统组合应用的技术方案，简单列举如下：1、初水膜形成装置12采用板式结构水膜重构系统，第一水膜重构装置13、第二水膜重构装置14采用槽式结构水膜重构系统。2、初水膜形成装置12采用槽式结构水膜重构系统，第一水膜重构装置13采用板式结构水膜重构系统，第二水膜重构装置14采用槽式结构水膜重构系统。3、初水膜形成装置12采用板式结构水膜重构系统，第一水膜重构装置13采用槽式结构水膜重构系统，第二水膜重构装置14采用板式结构水膜重构系统。Embodiments 1 and 2 enumerate the technical solutions that the water film reconstruction system adopts a trough structure water film reconstruction system or a plate structure water film reconstruction system. In actual engineering, the water film reconstruction system can also use a trough structure. The technical solutions for the combined application of the water film reconstruction system and the plate structure water film reconstruction system are briefly listed as follows: 1. The initial water
以上所述仅是本发明的优选实施方式，本发明的保护范围并不仅局限于上述实施例，凡属于本发明思路下的技术方案均属于本发明的保护范围。应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明原理前提下的若干改进和润饰，这些改进和润饰也应视为本发明的保护范围。The above are only the preferred embodiments of the present invention, and the protection scope of the present invention is not limited to the above-mentioned embodiments, and all technical solutions under the idea of the present invention belong to the protection scope of the present invention. It should be pointed out that for those skilled in the art, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.
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