CN102410779A - Rotary water distributor - Google Patents
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- CN102410779A CN102410779A CN2011103411312A CN201110341131A CN102410779A CN 102410779 A CN102410779 A CN 102410779A CN 2011103411312 A CN2011103411312 A CN 2011103411312A CN 201110341131 A CN201110341131 A CN 201110341131A CN 102410779 A CN102410779 A CN 102410779A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 121
- 230000005540 biological transmission Effects 0.000 claims abstract description 76
- 230000008878 coupling Effects 0.000 claims abstract description 3
- 238000010168 coupling process Methods 0.000 claims abstract description 3
- 238000005859 coupling reaction Methods 0.000 claims abstract description 3
- 238000007789 sealing Methods 0.000 claims description 19
- 230000006835 compression Effects 0.000 claims 1
- 238000007906 compression Methods 0.000 claims 1
- 238000000889 atomisation Methods 0.000 abstract description 4
- 238000005265 energy consumption Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000010687 lubricating oil Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- 230000003313 weakening effect Effects 0.000 description 2
- 229910001111 Fine metal Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Abstract
本发明公开一种运行稳定、无泄漏的布水器，该补水器由水输配装置、压缩空气输配装置、传动装置、管道连接装置、分配装置、喷嘴、水输配管道和压缩空气输配管道构成，所述传动装置通过联轴器或皮带与电动机连接，驱动布水器旋转，所述水输配装置、压缩空气输配装置采用轴封密封，其出口管以套管形式与管道连接装置或布水装置连接，压缩空气、水以独立通道进入喷嘴雾化，喷射至换热器表面形成均匀厚度的水膜，提高传热效率。
The present invention discloses a water distributor with stable operation and no leakage. The water distributor is composed of a water delivery and distribution device, a compressed air delivery and distribution device, a transmission device, a pipeline connecting device, a distribution device, a nozzle, a water delivery and distribution pipeline and a compressed air delivery and distribution pipeline. The transmission device is connected to a motor through a coupling or a belt to drive the water distributor to rotate. The water delivery and distribution device and the compressed air delivery and distribution device are sealed by shaft seals. The outlet pipes thereof are connected to the pipeline connecting device or the water distribution device in the form of a sleeve. Compressed air and water enter the nozzle through independent channels for atomization and are sprayed onto the surface of a heat exchanger to form a water film of uniform thickness, thereby improving heat transfer efficiency.
Description
技术领域 technical field
本发明涉及一种用于蒸发冷却换热器的布水装置，通过旋转布水在换热器表面形成均匀水膜，强化水膜与空气的传热传质过程，提高换热效率。The invention relates to a water distribution device for an evaporative cooling heat exchanger, which forms a uniform water film on the surface of the heat exchanger through rotating water distribution, strengthens the heat and mass transfer process between the water film and air, and improves heat exchange efficiency.
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，换热器表面水膜的均匀性、完整性都不够理想，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，传统的布水方式在换热器表面形成水膜时，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风利用，故换热器传热效率低。Existing evaporative coolers mostly 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 heat exchanger are not ideal, and the saturated air pressure on the surface of the water film is different from that of The water vapor partial pressure difference 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 heat exchanger, most of the water droplets directly interact with the air, which significantly increases the air humidity, namely 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 used by filling the air, so the heat transfer efficiency of the heat exchanger is low.
针对蒸发冷却器传热效率低的原因，在现有强化传热传质技术基础上，申请人所在课题组曾提出利用蒸发补水器(ZL2009103003918)在换热器侧面布水改善水膜的均匀性、提高传质推动力，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，因此，压缩空气需要的压力和空气量非常大，且空气压力远远大于喷雾所需压力，使得空气压缩机功率迅速增加，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，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无法解决的矛盾：1)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，导致所需压缩空气压力和空气量迅速增大，空压机功率急剧增加；2)密封性差，则泄漏严重，浪费大量压缩空气，同样导致压缩机所需电机功率急剧增大；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；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 low heat transfer efficiency of the evaporative cooler, based on the existing enhanced heat and mass transfer technology, the research group of the applicant once proposed to use the evaporative water replenisher (ZL2009103003918) to distribute water on the side of the heat exchanger to improve the uniformity of the water film , Improve the driving force of mass transfer, 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, so the pressure and air volume required for compressed air are very large, and the air pressure is far greater than the pressure required for spraying , so that the power of the air compressor increases rapidly, and the energy waste is serious. What is more serious is that the rotating body of the water distribution device is set on the water inlet channel, and the rotating body and the outer wall of the water inlet channel form a cavity, which is supported by bearings. Therefore, the The friction between the moving parts and the stationary parts of the device, the sealing performance and the driving force of the device constitute a series of unsolvable contradictions: 1) If the sealing performance is good, the friction force of the device will increase sharply, and the power required to drive the device to rotate will also increase sharply. This leads to a rapid increase in the required compressed air pressure and air volume, and a sharp increase in the power of the air compressor; 2) Poor sealing will cause serious leakage and waste a lot of compressed air, which also leads to a sharp increase in the motor power required by the compressor; 3) Water or Tiny impurities in the compressed air or fine metal shavings generated during the rotation of the device can easily get stuck in the gap between the moving part and the stationary part, causing the device to stop rotating frequently, resulting in the failure of the heat exchanger to discharge heat; 4) Water distribution Leakage of the heat exchanger will cause the lubricating oil of the bearing to splash on the surface of the heat exchanger, seriously weakening the uniformity and integrity of the water film; 5) The premature contact between the compressed air and the water makes the air leak from the side of the water tank and press the water back to the water tank However, the water pump pressure has to be increased to be close to the compressed air pressure, which is far greater than the economic pressure required for atomization.
由于该布水器如终存在旋转体与静止部件的动静结合面，始终存在缝隙，实测中发现，无论如何优化装置密封，优化改进其中任何一个问题，都会恶化上述五个问题中的其它问题，因此，上述问题始终无法解决，必须从装置的根本原理上予以彻底改进，故该装置并不能满中实际工程需要。Since the water distributor always has a dynamic and static joint surface between the rotating body and the stationary part, there are always gaps. It is found in the actual measurement that no matter how to optimize the sealing of the device and optimize any one of the problems, it will worsen the other problems in the above five problems. Therefore, the problems referred to above cannot be solved all the time, and must be thoroughly improved from the fundamental principle of the device, so this device can not meet the actual engineering needs.
发明内容 Contents of the invention
针对上述装置运行频繁停机、能耗浪费严重、泄漏严重和泄漏的润滑油削弱水膜均匀性、完整性等诸多致命缺陷，本发明提供一种旋转补水器运行稳定、能耗低且无泄漏的布水器。Aiming at many fatal defects such as frequent shutdown of the above-mentioned device, serious waste of energy consumption, serious leakage and leakage of lubricating oil that weakens the uniformity and integrity of the water film, the present invention provides a rotary water replenisher with stable operation, low energy consumption and no leakage. Water distributor.
解决上述问题的技术方案是：采用水输配装置、压缩空气输配装置、管道连接装置、分配装置、水输配管道和压缩空气输配管道，解决密封问题导致的频繁停机、能耗浪费严重、泄漏严重和泄漏的润滑油削弱水膜均匀性、完整性的致命缺陷；采用电动机提供旋转动力；降低压缩空气量和压力，迅速降低空压机所需电机功率，从而降低布水器能耗。The technical solution to solve the above problems is to use water transmission and distribution equipment, compressed air transmission and distribution equipment, pipeline connection equipment, distribution equipment, water transmission and distribution pipelines and compressed air transmission and distribution pipelines to solve frequent shutdowns and serious waste of energy consumption caused by sealing problems , severe leakage and leaking lubricating oil weaken the uniformity and integrity of the water film; use the electric motor to provide rotating power; reduce the compressed air volume and pressure, and quickly reduce the motor power required by the air compressor, thereby reducing the energy consumption of the water distributor .
本发明的有益效果：本发明所述补水器工作时，水膜均匀、完整，最大程度利用空气与水膜的传热传质推动力，布水器运行电机功率50～100W，无泄漏，所需压缩空气压力和空气量急剧下降，能耗低，运行稳定，没有频繁停机导致无法换热的问题，避免轴承润滑油削弱水膜的均匀性和完整性，提高换热效率。Beneficial effects of the present invention: when the water replenisher of the present invention is working, the water film is uniform and complete, and the driving force of heat and mass transfer between the air and the water film is utilized to the greatest extent. The motor power of the water distributor is 50-100W without leakage. The compressed air pressure and air volume drop sharply, the energy consumption is low, the operation is stable, and there is no problem of heat exchange failure caused by frequent shutdowns, which avoids bearing lubricating oil from weakening the uniformity and integrity of the water film, and improves heat exchange efficiency.
附图说明 Description of drawings
图1为布水器整体结构图。Figure 1 is the overall structure diagram of the water distributor.
图2为管道连接装置结构图。Figure 2 is a structural diagram of the pipeline connection device.
图3为管道连接件A-A剖面图。Fig. 3 is a cross-sectional view of pipe connector A-A.
图4为分配装置输出管套管布置时的B-B剖面图。Fig. 4 is a B-B cross-sectional view of the distributing device when the output pipe casing is arranged.
图5为分配装置输出管径向平行布置时的结构图。Fig. 5 is a structural diagram when the output pipes of the distributing device are radially arranged in parallel.
图6为图5中C-C剖面图。Fig. 6 is a sectional view of C-C in Fig. 5 .
图7为密封盖D-D剖面图。Fig. 7 is a D-D sectional view of the sealing cover.
图8为贮水池左视图Figure 8 is the left view of the water storage tank
图9为布水器实施例二结构图Figure 9 is a structural diagram of the second embodiment of the water distributor
具体实施方式 Detailed ways
结合附图对本发明所述布水器做一步说明：In conjunction with the accompanying drawings, the water distributor of the present invention is described in one step:
实施例一Embodiment one
本发明所述布水器，由水输配装置、压缩空气输配装置、传动装置、管道连接装置、分配装置、喷嘴、水输配管道和压缩空气输配管道构成，如附图1所示，分配装置和喷嘴通过水输配管道、压缩空气输配管道连接，构成一个输配支管，在每个输配支管上，喷嘴通过水输配管道、压缩空气输配管道串联连接，构成多个布水点；布水器的多根输配支管在由水输配管道和压缩空气输配管道构成的输配主干管上，以并联方式构成输配支管系；输配主干管、分配装置通过管道连接装置连接，压缩空气、水分别进入水输配装置、压缩空气输配装置，通过水输配管道、压缩空气输配管道进入分配装置，在分配装置通过水输配管道、压缩空气输配管道进入喷嘴雾化，电动机动通过传动装置带动布水器旋转，实现换热器表面均匀布水。The water distributor of the present invention is composed of a water distribution device, a compressed air distribution device, a transmission device, a pipeline connection device, a distribution device, a nozzle, a water transmission and distribution pipeline and a compressed air transmission and distribution pipeline, as shown in Figure 1 , the distributing device and the nozzle are connected through a water distribution pipeline and a compressed air transmission and distribution pipeline to form a transmission and distribution branch pipe. On each transmission and distribution branch pipe, the nozzles are connected in series through a water transmission and distribution pipeline and a compressed air distribution pipeline to form multiple Water distribution point; multiple transmission and distribution branch pipes of the water distributor are on the main transmission and distribution pipeline composed of water transmission and distribution pipelines and compressed air transmission and distribution pipelines, forming a transmission and distribution branch pipeline system in parallel; the transmission and distribution main pipes and distribution devices pass The pipeline connection device is connected, the compressed air and water enter the water distribution device and the compressed air distribution device respectively, enter the distribution device through the water transmission and distribution pipeline, and the compressed air transmission and distribution pipeline, and pass through the water transmission and distribution pipeline, compressed air transmission and distribution device in the distribution device The pipe enters the nozzle for atomization, and the electric motor drives the water distributor to rotate through the transmission device, so as to realize uniform water distribution on the surface of the heat exchanger.
如附图1所示，传动装置安装在输配干管上适当位置，通过联轴器或皮带与电动机连接，驱动布水器旋转，输配支管与输配干管垂直，相邻支管空间夹角大于等于0°。As shown in Figure 1, the transmission device is installed at an appropriate position on the transmission and distribution main pipe, and is connected to the motor through a coupling or a belt to drive the water distributor to rotate. The transmission and distribution branch pipe is perpendicular to the transmission and distribution main pipe, and the space between adjacent branch pipes The angle is greater than or equal to 0°.
如附图1、8所示，水输配装置、压缩空气输配装置由贮水池、贮气池和密封盖构成，二者输出的水输配管道和压缩空气输配管道以套管形式与管道连接装置或分配装置连接，水输配装置、压缩空气输配装置采用螺栓与基础固定。As shown in Figures 1 and 8, the water transmission and distribution device and the compressed air transmission and distribution device are composed of a water storage tank, an air storage tank and a sealing cover. The pipeline connection device or distribution device is connected, and the water transmission and distribution device and compressed air transmission and distribution device are fixed to the foundation with bolts.
如附图1、7所示，密封盖由轴承、轴封和盖体构成，密封盖与贮水池、贮气池采用螺钉连接，盖体与池体间设有密封圈，密封盖输出的水输配管道和压缩空气输配管道采用轴封密封，以轴承提供旋转支撑。As shown in Figures 1 and 7, the sealing cover is composed of a bearing, a shaft seal and a cover body. The sealing cover is connected to the water storage tank and the gas storage tank by screws. There is a sealing ring between the cover body and the pool body. The water output from the sealing cover Transmission and distribution pipelines and compressed air transmission and distribution pipelines are sealed with shaft seals, and bearings are used to provide rotational support.
如附图2、3所示，管道连接装置由管道连接件和布水器支撑固定件构成，管道连接件上径向截面适当半径上设有轴向环形布置的压缩空气通道，径向截面中心轴向设置水通道，布水器支撑固定件由轴承和底座构成，管道连接件穿过轴承内孔，轴承固定在底座上，底座通过螺栓与基础固定。As shown in Figures 2 and 3, the pipeline connection device is composed of a pipeline connection piece and a water distributor supporting and fixing piece. On the pipe connection piece, there are compressed air channels arranged in an axial ring on an appropriate radius of the radial section, and the central axis of the radial section The water channel is arranged in the direction, the supporting and fixing part of the water distributor is composed of a bearing and a base, the pipe connecting part passes through the inner hole of the bearing, the bearing is fixed on the base, and the base is fixed to the foundation by bolts.
如附图1所示，管道连接装置与分配装置或两个管道连接装置通过水输配管道和压缩空气输配管道连接时，内管水输配管道两端垫密封圈，外管压缩空气输配管道两端垫密封圈，内管仅插入水通道中，外管采用螺蚊连接，利用螺纹旋转长度压紧密封圈和调整输配支管间的空间夹角。As shown in Figure 1, when the pipeline connection device and the distribution device or two pipeline connection devices are connected through the water transmission and distribution pipeline and the compressed air transmission and distribution pipeline, the two ends of the water transmission and distribution pipeline of the inner pipe shall be gasketed, and the compressed air transmission and distribution pipeline of the outer pipe shall be sealed. The two ends of the distribution pipe are filled with sealing rings, the inner pipe is only inserted into the water channel, and the outer pipe is connected by a screw, and the sealing ring is pressed by the rotating length of the thread and the space angle between the transmission and distribution branch pipes is adjusted.
如附图4、5、6所示，分配装置径向截面适当半径上设有轴向环形布置的压缩空气通道，径向截面中心轴向设置水通道，分配装置输出的水输配管道和压缩空气输配管道布置成套管形式或径向平行布置。As shown in Figures 4, 5, and 6, the radial cross-section of the distribution device is provided with compressed air passages arranged in an axial ring on an appropriate radius, and a water passage is arranged axially in the center of the radial cross-section. The air transmission and distribution pipelines are arranged in the form of sleeves or radially parallel.
实施例二Embodiment two
本发明所述布水器雾化工质只有水时，布水器由水输配装置、传动装置、管道连接装置、分配装置、喷嘴和水输配管道构成，如附图9所示，分配装置和喷嘴通过水输配管道连接，构成一个输配支管，在每个输配支管上，喷嘴通过水输配管道串联连接，构成多个布水点；布水器的多根输配支管在由水输配管道构成的输配主干管上，以并联方式构成输配支管系；输配主干管、分配装置通过管道连接装置连接，水通过水输配管道进入分配装置，在分配装置通过水输配管道进入喷嘴雾化，电动机动通过传动装置带动布水器旋转，实现换热器表面均匀布水。When the atomizing substance of the water distributor of the present invention is only water, the water distributor is composed of a water distribution device, a transmission device, a pipeline connection device, a distribution device, a nozzle and a water distribution pipeline, as shown in Figure 9, the distribution device It is connected with the nozzle through the water transmission and distribution pipeline to form a transmission and distribution branch pipe. On each transmission and distribution branch pipe, the nozzles are connected in series through the water transmission and distribution pipeline to form multiple water distribution points; On the main transmission and distribution pipeline composed of water transmission and distribution pipelines, the transmission and distribution branch piping system is formed in parallel; the transmission and distribution main pipeline and the distribution device are connected through the pipeline connection device, and the water enters the distribution device through the water transmission and distribution pipeline, and passes through the water transmission and distribution device in the distribution device. The distribution pipe enters the nozzle for atomization, and the electric motor drives the water distributor to rotate through the transmission device, so as to realize uniform water distribution on the surface of the heat exchanger.
Claims (8)
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110793349A (en) * | 2019-11-14 | 2020-02-14 | 珠海格力电器股份有限公司 | Water film reconstruction plate evaporative cooler |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US4493195A (en) * | 1983-05-11 | 1985-01-15 | The United States Of America As Represented By The Secretary Of The Navy | Air conditioning system with evaporative cooling apparatus |
| US6493461B1 (en) * | 1998-03-17 | 2002-12-10 | Cummins-Allison Corp. | Customizable international note counter |
| US7497077B2 (en) * | 2006-07-26 | 2009-03-03 | Southwest Research Institute | System and method for dispensing an aqueous urea solution into an exhaust gas stream |
| CN201335368Y (en) * | 2008-12-29 | 2009-10-28 | 中铁二院工程集团有限责任公司 | Spraying structure |
| CN101482375A (en) * | 2009-02-12 | 2009-07-15 | 中铁二院工程集团有限责任公司 | Evaporation water compensating device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110793349A (en) * | 2019-11-14 | 2020-02-14 | 珠海格力电器股份有限公司 | Water film reconstruction plate evaporative cooler |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102410779B (en) | 2014-07-30 |
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