CN221223437U - A cooling water circulation system for a steam turbine generator set - Google Patents
A cooling water circulation system for a steam turbine generator set Download PDFInfo
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- CN221223437U CN221223437U CN202322484723.0U CN202322484723U CN221223437U CN 221223437 U CN221223437 U CN 221223437U CN 202322484723 U CN202322484723 U CN 202322484723U CN 221223437 U CN221223437 U CN 221223437U
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- 239000000498 cooling water Substances 0.000 title claims abstract description 129
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 62
- 238000009826 distribution Methods 0.000 claims abstract description 30
- 238000001816 cooling Methods 0.000 claims abstract description 10
- 238000005507 spraying Methods 0.000 claims abstract 11
- 239000007921 spray Substances 0.000 claims description 26
- 238000001914 filtration Methods 0.000 claims description 9
- 238000003860 storage Methods 0.000 claims description 9
- 238000005192 partition Methods 0.000 claims description 8
- 239000007788 liquid Substances 0.000 abstract description 9
- 239000007789 gas Substances 0.000 description 4
- 239000012535 impurity Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 101001121408 Homo sapiens L-amino-acid oxidase Proteins 0.000 description 2
- 102100026388 L-amino-acid oxidase Human genes 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000008236 heating water Substances 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
Description
技术领域Technical Field
本实用新型属于冷却水设备技术领域，具体涉及一种用于汽轮机发电机组的冷却水循环系统。The utility model belongs to the technical field of cooling water equipment, and in particular relates to a cooling water circulation system for a steam turbine generator set.
背景技术Background technique
汽轮机发电机组冷却水循环系统的作用是为了冷却汽轮机低压缸排气，并在凝汽器内建立真空。此外，经过滤后的循环水还可作为一些设备的冷却水使用，为润滑油冷却器、发电机空冷器、给水泵和凝结水泵电机、空调制冷机组提供冷却。另外它还向开式水系统和冲灰系统提供用水。为节能降耗，冬季还向热泵站提供加热用水。冷却水换热后温度升高，通过需要对升高后的热水进行降温处理，以便循环使用。现有的做法是将温度升高后的热水与冷气、冷水进行间接换热，这种换热方式换热效率低，为获得理想温度的冷却水，通常需要将换热设备做的很大，使得换热成本高。The function of the cooling water circulation system of the steam turbine generator set is to cool the exhaust of the low-pressure cylinder of the steam turbine and establish a vacuum in the condenser. In addition, the filtered circulating water can also be used as cooling water for some equipment, providing cooling for the lubricating oil cooler, generator air cooler, feed water pump and condensate pump motor, and air conditioning refrigeration unit. In addition, it also provides water to the open water system and ash flushing system. In order to save energy and reduce consumption, heating water is also provided to the heat pump station in winter. The temperature of the cooling water rises after heat exchange, and the heated hot water needs to be cooled down for recycling. The existing practice is to indirectly exchange heat between the hot water with the cold air and cold water. This heat exchange method has low heat exchange efficiency. In order to obtain cooling water at an ideal temperature, the heat exchange equipment usually needs to be made very large, which makes the heat exchange cost high.
实用新型内容Utility Model Content
为解决上述技术问题，本实用新型提供一种用于汽轮机发电机组的冷却水循环系统。In order to solve the above technical problems, the utility model provides a cooling water circulation system for a steam turbine generator set.
为实现上述实用新型的目的，本实用新型所采用的技术方案是：一种用于汽轮机发电机组的冷却水循环系统，包括冷却水塔，所述冷却水塔上部设置有喷淋部件，所述冷却水塔出水与待冷却设备换热，换热后的热水从冷却水塔上部进入喷淋部件；冷却水塔下部设置有布气部件，冷气从冷却水塔下部进入布气部件；冷气与热水在冷却水塔内逆向接触换热。To achieve the purpose of the above-mentioned utility model, the technical solution adopted by the utility model is: a cooling water circulation system for a steam turbine generator set, comprising a cooling water tower, a spray component is arranged at the upper part of the cooling water tower, the outlet water of the cooling water tower exchanges heat with the equipment to be cooled, and the hot water after heat exchange enters the spray component from the upper part of the cooling water tower; an air distribution component is arranged at the lower part of the cooling water tower, and cold air enters the air distribution component from the lower part of the cooling water tower; the cold air and hot water are in reverse contact and heat exchange in the cooling water tower.
优选的：所述喷淋部件包括喷淋圆盘，所述喷淋圆盘内设置有第一空腔，所述第一空腔底部设置有若干喷淋出口，所述喷淋出口出水方向朝向所述布气部件。Preferably, the spray component comprises a spray disc, a first cavity is arranged in the spray disc, a plurality of spray outlets are arranged at the bottom of the first cavity, and water outlets of the spray outlets are directed toward the air distribution component.
优选的：若干所述喷淋出口处设置有喷嘴。Preferably, nozzles are provided at a plurality of the spray outlets.
优选的：所述布气部件包括布气圆盘，所述布气圆盘内设置有第二空腔，所述第二空腔内顶部设置有若干出气口，所述出气口出气方向朝向所述喷淋部件。Preferably, the air distribution component comprises an air distribution disc, a second cavity is arranged in the air distribution disc, a plurality of air outlets are arranged at the top of the second cavity, and the air outlets are directed toward the spray component.
优选的：所述布气部件下方、所述冷却水塔内设置有第一过滤部件，所述第一过滤部件下方与冷却水塔内壁合围成储水区。Preferably: a first filter component is arranged below the air distribution component and inside the cooling water tower, and the lower part of the first filter component and the inner wall of the cooling water tower together form a water storage area.
优选的：所述第一过滤部件包括间隔板，所述间隔板外围设置有第一过滤网，所述第一过滤网朝向其外围向下倾斜设置，所述第一过滤网外围与冷却水塔内侧壁连接。Preferably, the first filter component comprises a partition plate, a first filter screen is arranged at the periphery of the partition plate, the first filter screen is arranged to be inclined downward toward the periphery thereof, and the periphery of the first filter screen is connected to the inner wall of the cooling water tower.
优选的：所述储水区内设置有第二过滤部件，所述第二过滤部件包括与所述冷却水塔底部连接的固定框，所述固定框内设置有第二过滤网，所述第二过滤网竖向设置，所述固定框底部设置冷却出水管。Preferably: a second filter component is provided in the water storage area, the second filter component comprises a fixed frame connected to the bottom of the cooling water tower, a second filter screen is provided in the fixed frame, the second filter screen is vertically arranged, and a cooling water outlet pipe is provided at the bottom of the fixed frame.
优选的：所述第二过滤部件的横向截面为三角形。Preferably, the transverse cross-section of the second filter component is triangular.
优选的：所述冷却出水管远离所述固定框的一端伸出冷却水塔连接有连接管，所述连接管另一端与冷却水塔顶部的喷淋部件连接。Preferably, one end of the cooling water outlet pipe away from the fixing frame extends out of the cooling water tower and is connected to a connecting pipe, and the other end of the connecting pipe is connected to a spray component at the top of the cooling water tower.
优选的：所述冷却水塔包括可拆卸连接的上部塔体、下部塔体，所述布气部件设置在下部塔体内。Preferably, the cooling water tower comprises an upper tower body and a lower tower body which are detachably connected, and the air distribution component is arranged in the lower tower body.
与现有技术相比，本申请具有以下有益效果：Compared with the prior art, this application has the following beneficial effects:
通过在冷却水塔上部设置有喷淋部件，冷却水塔出水与待冷却设备换热，换热后的热水从冷却水塔上部进入喷淋部件；冷却水塔下部设置有布气部件，冷气从冷却水塔下部进入布气部件。工作时，冷气从冷却水塔下部通过进气管进入冷却水塔，热水从冷却水塔上部进入冷却水塔，冷气向上移动，热水向下移动，冷气与热水在冷却水塔内逆向直接接触换热，气体与液体直接接触，提高了液体的冷却效率。By installing a spray component at the top of the cooling water tower, the water from the cooling water tower exchanges heat with the equipment to be cooled, and the hot water after heat exchange enters the spray component from the top of the cooling water tower; an air distribution component is installed at the bottom of the cooling water tower, and cold air enters the air distribution component from the bottom of the cooling water tower. During operation, cold air enters the cooling water tower from the bottom of the cooling water tower through the air inlet pipe, and hot water enters the cooling water tower from the top of the cooling water tower. The cold air moves upward and the hot water moves downward. The cold air and hot water directly contact and exchange heat in the cooling water tower in reverse, and the gas and liquid are in direct contact, which improves the cooling efficiency of the liquid.
附图说明BRIEF DESCRIPTION OF THE DRAWINGS
图1为本实用新型冷却水循环系统的整体结构示意图。FIG1 is a schematic diagram of the overall structure of a cooling water circulation system of the present invention.
图中：进气管1、出气管2、循环水泵3、凝汽器4、连接管5、冷却水塔6、喷嘴7、喷淋圆盘8、第一空腔9、第二空腔10、间隔板11、第一过滤网12、底板13、第二过滤网14、固定框15、布气圆盘16、冷却出水管17。In the figure: air inlet pipe 1, air outlet pipe 2, circulating water pump 3, condenser 4, connecting pipe 5, cooling water tower 6, nozzle 7, spray disc 8, first cavity 9, second cavity 10, partition plate 11, first filter screen 12, bottom plate 13, second filter screen 14, fixing frame 15, air distribution disc 16, cooling water outlet pipe 17.
具体实施方式Detailed ways
下面将结合本实用新型实施例中的附图，对本实用新型实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅是本实用新型一部分实施例，而不是全部的实施例。若未特别指明，实施例中所用的技术手段为本领域技术人员所熟知的常规手段。The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Unless otherwise specified, the technical means used in the embodiments are conventional means well known to those skilled in the art.
在本实用新型的描述中，需要理解的是，术语“纵向”、“横向”、“上”、“下”、“前”、“后”、“左”、“右”、“竖向”、“水平”、“顶”、“底”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本实用新型，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本实用新型的限制。In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.
如图1所示，本实用新型公开了一种用于汽轮机发电机组的冷却水循环系统，包括冷却水塔6，所述冷却水塔6上部设置有喷淋部件，所述冷却水塔6出水与待冷却设备换热，换热后的热水从冷却水塔6上部进入喷淋部件；冷却水塔6下部设置有布气部件，冷气从冷却水塔6下部进入布气部件。此处的换热设备采用凝汽器4。As shown in FIG1 , the utility model discloses a cooling water circulation system for a steam turbine generator set, including a cooling water tower 6, a spray component is arranged at the upper part of the cooling water tower 6, the outlet water of the cooling water tower 6 exchanges heat with the equipment to be cooled, and the hot water after heat exchange enters the spray component from the upper part of the cooling water tower 6; an air distribution component is arranged at the lower part of the cooling water tower 6, and cold air enters the air distribution component from the lower part of the cooling water tower 6. The heat exchange device here adopts a condenser 4.
工作时，冷气从冷却水塔6下部通过进气管1进入冷却水塔6，热水从冷却水塔6上部进入冷却水塔6，冷气向上移动，热水向下移动，冷气与热水在冷却水塔6内逆向直接接触换热，冷却后的冷水储存在冷却水塔6下部，便于下一次使用，升温后的热气从冷却水塔6顶部通过出气管2排出。此处的冷气可以为冷空气或是其他类似于氮气的惰性气体。气体与液体直接接触，提高了液体的冷却效率。During operation, cold air enters the cooling water tower 6 from the lower part of the cooling water tower 6 through the air inlet pipe 1, and hot water enters the cooling water tower 6 from the upper part of the cooling water tower 6. The cold air moves upward and the hot water moves downward. The cold air and the hot water are directly contacted and exchanged heat in the cooling water tower 6 in reverse. The cooled cold water is stored in the lower part of the cooling water tower 6 for the next use. The heated hot air is discharged from the top of the cooling water tower 6 through the air outlet pipe 2. The cold air here can be cold air or other inert gases such as nitrogen. The gas is in direct contact with the liquid, which improves the cooling efficiency of the liquid.
进一步的，所述喷淋部件包括固定设置在冷却水塔6顶部的喷淋圆盘8，所述喷淋圆盘8内设置有第一空腔9，换热后的热水从冷却水塔6上部进入第一空腔9内部，所述第一空腔9底部设置有若干喷淋出口，所述喷淋出口出水方向朝向所述布气部件。若干所述喷淋出口处设置有喷嘴7。热水从第一空腔9内分流至各个喷嘴7，向下喷淋，增大了与气体的接触面积，提高了液体的冷却效率。Furthermore, the spray component includes a spray disc 8 fixedly arranged on the top of the cooling water tower 6, a first cavity 9 is arranged in the spray disc 8, and the hot water after heat exchange enters the first cavity 9 from the upper part of the cooling water tower 6. A plurality of spray outlets are arranged at the bottom of the first cavity 9, and the water outlet direction of the spray outlet is toward the air distribution component. Nozzles 7 are arranged at the plurality of spray outlets. The hot water is diverted from the first cavity 9 to each nozzle 7 and sprayed downward, thereby increasing the contact area with the gas and improving the cooling efficiency of the liquid.
进一步的，所述布气部件包括固定设置在冷却水塔6下部的布气圆盘16，所述布气圆盘16内设置有第二空腔10，从外部进来的冷气进入第二空腔10内部，所述第二空腔10内顶部设置有若干出气口，所述出气口出气方向朝向所述喷淋部件。冷气从第二空腔10内分流至各个出气口，向上流动，增大了液体与气体的接触面积，提高了液体的冷却效率。Furthermore, the air distribution component includes an air distribution disc 16 fixedly arranged at the lower part of the cooling water tower 6, and a second cavity 10 is arranged in the air distribution disc 16. Cold air from the outside enters the second cavity 10. A plurality of air outlets are arranged at the top of the second cavity 10, and the air outlet direction of the air outlet is toward the spray component. The cold air is diverted from the second cavity 10 to each air outlet and flows upward, which increases the contact area between the liquid and the gas and improves the cooling efficiency of the liquid.
外界杂质可能会进入循环水系统，引起凝汽器4等冷却器堵塞脏污，为了避免管道阻力增大、冷却水量减小等引起冷却效果不良的生产事故，需要在冷却水塔6出水前设置过滤部件，防止杂质进入凝汽器4等冷却器内。所述布气部件下方、所述冷却水塔6内设置有第一过滤部件，所述第一过滤部件下方与冷却水塔6内壁合围成储水区，储水区用于储存冷却后的水，便于下次使用。Foreign impurities may enter the circulating water system, causing the condenser 4 and other coolers to become clogged and dirty. In order to avoid production accidents such as increased pipeline resistance and reduced cooling water volume that cause poor cooling effects, it is necessary to set a filter component before the water discharge from the cooling water tower 6 to prevent impurities from entering the condenser 4 and other coolers. A first filter component is set below the air distribution component and inside the cooling water tower 6. The first filter component and the inner wall of the cooling water tower 6 form a water storage area, which is used to store cooled water for next use.
进一步的，所述第一过滤部件包括设置在冷却水塔6内部的间隔板11，所述间隔板11外围设置有第一过滤网12，所述第一过滤网12朝向其外围向下倾斜设置，所述第一过滤网12外围与冷却水塔6内侧壁可拆卸连接。通过将第一过滤网12向下倾斜设置，可以使附着在第一过滤网12上的杂质在水的冲击力下滚落至第一过滤网12与冷却水塔6的连接部，水仍然可以从第一过滤网12上滤出，使冷却水塔6正常工作。热水在冷却水塔6上部冷却后进入冷却水塔6下部，并通过第一过滤网12过滤后进入储水区。Furthermore, the first filter component includes a partition plate 11 disposed inside the cooling water tower 6, a first filter screen 12 is disposed outside the partition plate 11, the first filter screen 12 is disposed downwardly inclined toward its periphery, and the periphery of the first filter screen 12 is detachably connected to the inner wall of the cooling water tower 6. By disposing the first filter screen 12 downwardly inclined, impurities attached to the first filter screen 12 can roll down to the connection between the first filter screen 12 and the cooling water tower 6 under the impact of water, and water can still be filtered out from the first filter screen 12, so that the cooling water tower 6 can work normally. After being cooled in the upper part of the cooling water tower 6, the hot water enters the lower part of the cooling water tower 6, and enters the water storage area after being filtered by the first filter screen 12.
进一步的，为了继续过滤冷却水，所述储水区内设置有第二过滤部件，所述第二过滤部件包括与所述冷却水塔6底部连接的固定框15，所述固定框15内设置有第二过滤网14，所述第二过滤网14竖向设置，所述固定框15底部设置冷却出水管17。Furthermore, in order to continue filtering the cooling water, a second filtering component is provided in the water storage area, and the second filtering component includes a fixed frame 15 connected to the bottom of the cooling water tower 6, and a second filter screen 14 is provided in the fixed frame 15. The second filter screen 14 is vertically arranged, and a cooling water outlet pipe 17 is provided at the bottom of the fixed frame 15.
具体地，冷却水塔6底部设置有底板13，所述固定框15可拆卸固定在底板13上。固定框15可以为圆柱框或是棱柱框，棱柱框可以为三棱柱、四棱柱、五棱柱等，优选为三棱柱框，增加过滤效率。该固定框15上端封闭，其各个侧壁设置第二过滤网14，固定框15底部设置冷却出水管17。储水区内的冷却水通过固定框15侧壁的第二过滤网14后流出冷却水塔6。Specifically, a bottom plate 13 is provided at the bottom of the cooling water tower 6, and the fixed frame 15 is detachably fixed on the bottom plate 13. The fixed frame 15 can be a cylindrical frame or a prism frame, and the prism frame can be a triangular prism, a quadrangular prism, a pentagonal prism, etc., preferably a triangular prism frame to increase the filtering efficiency. The upper end of the fixed frame 15 is closed, and each side wall thereof is provided with a second filter screen 14, and a cooling water outlet pipe 17 is provided at the bottom of the fixed frame 15. The cooling water in the water storage area flows out of the cooling water tower 6 after passing through the second filter screen 14 on the side wall of the fixed frame 15.
进一步的，所述冷却出水管17远离所述固定框15的一端伸出冷却水塔6连接有连接管5，所述连接管5另一端与冷却水塔6顶部的喷淋部件连接。连接管5上、位于冷却出水管17与冷却进水管之间设置循环水泵3和凝汽器4。Furthermore, one end of the cooling water outlet pipe 17 away from the fixing frame 15 extends out of the cooling water tower 6 and is connected to a connecting pipe 5, and the other end of the connecting pipe 5 is connected to a spray component at the top of the cooling water tower 6. A circulating water pump 3 and a condenser 4 are arranged on the connecting pipe 5 between the cooling water outlet pipe 17 and the cooling water inlet pipe.
为了便于维修清理布气部件、第一过滤部件和第二过滤部件，所述冷却水塔6包括可拆卸连接的上部塔体、下部塔体，所述布气部件、第一过滤部件和第二过滤部件设置在下部塔体内，喷淋部件设置在上部塔体内。In order to facilitate the maintenance and cleaning of the air distribution component, the first filter component and the second filter component, the cooling water tower 6 includes a detachably connected upper tower body and a lower tower body, the air distribution component, the first filter component and the second filter component are arranged in the lower tower body, and the spray component is arranged in the upper tower body.
一种用于汽轮机发电机组的冷却水循环系统的工作原理：该循环水系统由循环水泵3、凝汽器、冷却水塔6等设备组成，循环水泵3将冷却水塔6淋下的循环水送至凝汽器冷却水侧，循环水吸收汽轮机的排气热量后再返回至冷却水塔6。循环水从设置在冷却水塔6上部的喷淋部件落下，冷空气从冷却水塔6的下部进入冷却水塔6，与循环水逆向流动，起到冷却循环水的作用。被冷却的水落入冷却水塔6下部的储水区内，通过冷却出水管17道流至前池供循环水泵3循环。The working principle of a cooling water circulation system for a steam turbine generator set: The circulating water system is composed of a circulating water pump 3, a condenser, a cooling water tower 6 and other equipment. The circulating water pump 3 sends the circulating water from the cooling water tower 6 to the cooling water side of the condenser. The circulating water absorbs the exhaust heat of the steam turbine and then returns to the cooling water tower 6. The circulating water falls from the spray component arranged at the top of the cooling water tower 6, and the cold air enters the cooling water tower 6 from the bottom of the cooling water tower 6, and flows in the opposite direction to the circulating water, playing the role of cooling the circulating water. The cooled water falls into the water storage area at the bottom of the cooling water tower 6, and flows to the front pool through the cooling outlet pipe 17 for the circulating water pump 3 to circulate.
以上所述的实施例仅是对本实用新型的优选方式进行描述，并非对本实用新型的范围进行限定，在不脱离本实用新型设计精神的前提下，本领域普通技术人员对本实用新型的技术方案做出的各种变形、变型、修改、替换，均应落入本实用新型权利要求书确定的保护范围内。The embodiments described above are only descriptions of the preferred methods of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations, modifications, and substitutions made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.
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