技术领域technical field
本发明属于电厂领域，涉及一种风电场的基于海水源热泵的风电冷却防冻系统。The invention belongs to the field of power plants and relates to a wind power cooling and antifreezing system based on a seawater source heat pump in a wind farm.
背景技术Background technique
电厂蒸汽需要冷却水冷却，一般电厂冷却水来自于冷却塔，而近海的电厂可以直接引入海水作为冷却水对蒸汽冷却以达到就地取材的目的。海水完成蒸汽冷凝会提高自身热量，如大连冬季时，该完成冷凝的海水的温度会达到18度左右，一般电厂会将这部分海水回流到海里，并没有对这部分热量利用。Power plant steam needs to be cooled by cooling water. Generally, power plant cooling water comes from cooling towers, while offshore power plants can directly introduce seawater as cooling water to cool steam to achieve the purpose of local materials. The completion of steam condensation of seawater will increase its own heat. For example, in winter in Dalian, the temperature of the seawater that should be condensed will reach about 18 degrees. Generally, power plants will return this part of seawater to the sea, and do not use this part of heat.
如果冬季时能利用这部分海水热量防冻，会降低防冻成本，风电厂的风电冷却系统，冷却工质在极地温度情况下，会导致冷却系统结冰，现有技术使用膨胀水箱及其加热装置以解决该问题，申请号2007101713928的中国发明专利申请公开了风电冷却系统的防冻结构，然而，单纯使用加热装置会增加能源消耗，提高防冻成本。如果能与海水换热，使用海水热量防冻，将极大降低能源消耗。然而海水与冷却水换热，由于海水中混杂泥沙、藻类等易粘附杂质，长时间的换热会导致换热效率极度降低，此外，换热过程中，产生的部分水蒸气，是一种自然净化水，如果加以利用，可以实现对海水的净化。If this part of seawater heat can be used to prevent freezing in winter, the cost of antifreezing will be reduced. In the wind power cooling system of the wind power plant, the cooling medium will cause the cooling system to freeze under the condition of polar temperature. The existing technology uses the expansion tank and its heating device to To solve this problem, the Chinese invention patent application with application number 2007101713928 discloses the antifreeze structure of the wind power cooling system. However, simply using the heating device will increase energy consumption and increase the cost of antifreeze. If it can exchange heat with seawater and use seawater heat to prevent freezing, energy consumption will be greatly reduced. However, due to the heat exchange between seawater and cooling water, since the seawater is mixed with sediment, algae and other impurities that are easy to adhere to, the long-term heat exchange will lead to an extremely low heat exchange efficiency. In addition, part of the water vapor generated during the heat exchange process is a This kind of natural purified water, if utilized, can realize the purification of seawater.
发明内容Contents of the invention
为了解决上述问题，本发明提供了一种风电场的基于海水源热泵的风电冷却防冻系统，技术方案是：包括膨胀水箱、风电冷却系统、换热系统，所述膨胀水箱与冷却系统连接，所述膨胀水箱为双层中空式膨胀水箱，膨胀水箱中空层连通于换热系统的PE中介水回流管；In order to solve the above problems, the present invention provides a wind power cooling and antifreezing system based on a seawater source heat pump in a wind farm. The technical solution is: including an expansion tank, a wind power cooling system, and a heat exchange system. The expansion water tank is a double-layer hollow expansion water tank, and the hollow layer of the expansion water tank is connected to the PE intermediary water return pipe of the heat exchange system;
所述的冷却系统包括水泵，液压站、发电机、齿轮箱、变频器、热交换器、调温器和冷却器，膨胀水箱的一端与冷却系统的水泵连接，另一端连接第二调温器，所述的液压站、发电机、齿轮箱、变频器一端均与水泵及压力表相连，另一端均连接有一热交换器，分别为第一热交换器、第二热交换器、第三热交换器、第四热交换器，其中，液压站经第一热交换器输出后通过一第一调温器与所述的第二热交换器的另一端相连，还通过一第三调温器与所述的第四热交换器的另一端相连，所述的冷却器通过一第二调温器与所述的第三热交换器的另一端相连；The cooling system includes a water pump, a hydraulic station, a generator, a gear box, a frequency converter, a heat exchanger, a thermostat and a cooler, one end of the expansion tank is connected to the water pump of the cooling system, and the other end is connected to the second thermostat , one end of the hydraulic station, generator, gearbox, and frequency converter is connected to the water pump and pressure gauge, and the other end is connected to a heat exchanger, which are respectively the first heat exchanger, the second heat exchanger, and the third heat exchanger. Exchanger, the fourth heat exchanger, wherein, the hydraulic station is connected to the other end of the second heat exchanger through a first thermostat after being output by the first heat exchanger, and is also passed through a third thermostat It is connected with the other end of the fourth heat exchanger, and the cooler is connected with the other end of the third heat exchanger through a second thermostat;
所述换热系统包括密闭沟渠，其具有倾斜平板型上盖，所述上盖的外表面铺设保温层，沿着所述上盖的倾斜方向，在其上开设若干凝结水引流渠道，该所述各引流渠道汇聚在置于所述上盖的倾斜底边的导水槽，所述密闭沟渠的两端部安装密封门，所述导水槽由密封门伸出，入水口安装在一侧密封门上，并具有过滤网，所述倾斜平板型上盖的倾斜角度为5～10度；The heat exchange system includes an airtight ditch, which has an inclined plate-shaped upper cover, and an insulation layer is laid on the outer surface of the upper cover. The above-mentioned drainage channels converge in the water guide groove placed on the inclined bottom edge of the upper cover, and the two ends of the airtight ditch are equipped with sealed doors, and the water guide groove is protruded from the sealed door, and the water inlet is installed on one side of the sealed door. and has a filter screen, the inclination angle of the inclined flat top cover is 5-10 degrees;
所述沟渠的水平下盖铺设一组U型PE中介水回流管，该组的各PE中介水回流管间呈半包围式均匀排布，并在间隙填充沙子密实，各PE中介水回流管安装有循环泵，且与中介水储水箱连通，并在连通管道上安装控制阀，且各PE中介水回流管与膨胀水箱的中空层连通；A group of U-shaped PE intermediary water return pipes is laid on the horizontal lower cover of the ditch. The PE intermediary water return pipes of this group are evenly arranged in a semi-enclosed manner, and the gaps are filled with sand densely. Each PE intermediary water return pipe is installed There is a circulation pump, and it is connected with the intermediate water storage tank, and a control valve is installed on the connecting pipe, and each PE intermediate water return pipe is connected with the hollow layer of the expansion tank;
作为冷却水的海水与火电厂的汽轮机凝汽器换热，换热后的海水由一侧密封门进入，在所述密闭沟渠中与PE中介水回流管中的中介水换热；在PE中介水回流管的上层覆盖一层透水砖，所述透水砖倾斜铺设，且在位于倾斜最低处的透水砖的附近挖出排沟，使位于倾斜最低处的透水砖与排沟连通；所述上盖与透水砖的铺设倾斜方向一致，所述透水砖的倾斜角度是7～12度；The seawater used as cooling water exchanges heat with the steam turbine condenser of the thermal power plant, and the seawater after heat exchange enters through a sealed door on one side, and exchanges heat with the medium water in the PE medium water return pipe in the closed ditch; in the PE medium The upper layer of the water return pipe is covered with a layer of permeable bricks, and the permeable bricks are laid obliquely, and a drainage ditch is dug near the permeable bricks at the lowest point of the inclination, so that the permeable bricks at the lowest point of the inclination are connected to the drainage ditch; The laying inclination direction of the cover and the permeable brick is consistent, and the inclination angle of the permeable brick is 7-12 degrees;
透水砖的上层铺设耐腐蚀网，所述耐腐蚀网为单层钢丝网，网丝呈横纵垂直交叉均匀排布；主动辊和从动辊安装在左右两侧密封门的支撑架上，第一传动链条分别与所述主动辊的前端和所述从动辊的前端相连，第二传动链条分别与所述主动辊的后端和所述从动辊的后端相连，以使所述主动辊与所述从动辊联动，所述耐腐蚀网覆盖在第一传动链条或第二传动链条上；所述两侧密闭门的支撑架中的一个或两个安装有外网铲刀；The upper layer of the permeable brick is laid with a corrosion-resistant mesh. The corrosion-resistant mesh is a single-layer steel wire mesh, and the mesh wires are arranged horizontally, vertically and vertically. A transmission chain is respectively connected with the front end of the driving roller and the front end of the driven roller, and a second transmission chain is connected with the rear end of the driving roller and the rear end of the driven roller respectively, so that the driving roller The roller is linked with the driven roller, and the corrosion-resistant net is covered on the first transmission chain or the second transmission chain; one or both of the support frames of the closed doors on both sides are equipped with an outer net scraper;
所述排沟配备有刮板，排沟中铺设有用于刮板行进的轨道；The ditch is equipped with a scraper, and a track for the scraper to travel is laid in the ditch;
所述膨胀水箱内和中空层中还安装有辅助加热器。Auxiliary heaters are also installed in the expansion tank and the hollow layer.
进一步的，所述膨胀水箱的中空层具有补水口。Further, the hollow layer of the expansion tank has a water supply port.
有益效果：本发明使用与电厂蒸汽换热后的海水和风电场膨胀水箱内的中空层的中介水换热，以对带有电厂废热的海水的热量进行回收，并且，提升了海水换热的换热效率，延长了耗材的使用时间，还将由蒸汽产生的冷凝水回收利用，以形成换热、净化的一体式系统。Beneficial effects: the present invention uses seawater after heat exchange with power plant steam and intermediary water heat exchange in the hollow layer in the expansion water tank of wind farm to recover the heat of seawater with power plant waste heat, and improves the heat exchange efficiency of seawater High heat exchange efficiency prolongs the service life of consumables, and recycles condensed water generated by steam to form an integrated system of heat exchange and purification.
附图说明Description of drawings
图1为本发明所述系统的结构示意图；Fig. 1 is the structural representation of the system of the present invention;
图2为本发明所述系统的另一种结构示意图；Fig. 2 is another kind of structural representation of system of the present invention;
图3为耐腐蚀网传动结构示意图；Figure 3 is a schematic diagram of the transmission structure of the corrosion-resistant mesh;
图4是所述系统的结构框图；Fig. 4 is the structural block diagram of described system;
图5为实施例中所述方法的示意图。Figure 5 is a schematic diagram of the method described in the Examples.
1.上盖，2.导水槽，3.PE淡水回流管，4.透水砖，5.耐腐蚀网，6.主动辊，7.从动辊，8.第一传动链条，9.耐腐蚀网，10.电机，11.耐腐蚀网，12..第二传动链条。1. Top cover, 2. Water guide tank, 3. PE fresh water return pipe, 4. Permeable brick, 5. Corrosion-resistant mesh, 6. Driving roller, 7. Driven roller, 8. First transmission chain, 9. Corrosion resistance Net, 10. motor, 11. corrosion-resistant net, 12.. the second transmission chain.
具体实施方式detailed description
本实施方式提供一种实施例，以对本发明进一步说明。This implementation mode provides an example to further illustrate the present invention.
在一种实施例中，风电场的基于海水源热泵的风电冷却防冻系统，包括膨胀水箱、风电冷却系统、换热系统，所述膨胀水箱与冷却系统连接，所述膨胀水箱为双层中空式膨胀水箱，膨胀水箱中空层连通于换热系统的PE中介水回流管；In one embodiment, the wind power cooling antifreeze system based on the seawater source heat pump of the wind farm includes an expansion tank, a wind power cooling system, and a heat exchange system, the expansion tank is connected to the cooling system, and the expansion tank is a double-layer hollow type The expansion tank, the hollow layer of the expansion tank is connected to the PE intermediary water return pipe of the heat exchange system;
所述的冷却系统包括水泵，液压站、发电机、齿轮箱、变频器、热交换器、调温器和冷却器，膨胀水箱的一端与冷却系统的水泵连接，另一端连接第二调温器，所述的液压站、发电机、齿轮箱、变频器一端均与水泵及压力表相连，另一端均连接有一热交换器，分别为第一热交换器、第二热交换器、第三热交换器、第四热交换器，其中，液压站经第一热交换器输出后通过一第一调温器与所述的第二热交换器的另一端相连，还通过一第三调温器与所述的第四热交换器的另一端相连，所述的冷却器通过一第二调温器与所述的第三热交换器的另一端相连；The cooling system includes a water pump, a hydraulic station, a generator, a gear box, a frequency converter, a heat exchanger, a thermostat and a cooler, one end of the expansion tank is connected to the water pump of the cooling system, and the other end is connected to the second thermostat , one end of the hydraulic station, generator, gearbox, and frequency converter is connected to the water pump and pressure gauge, and the other end is connected to a heat exchanger, which are respectively the first heat exchanger, the second heat exchanger, and the third heat exchanger. Exchanger, the fourth heat exchanger, wherein, the hydraulic station is connected to the other end of the second heat exchanger through a first thermostat after being output by the first heat exchanger, and is also passed through a third thermostat It is connected with the other end of the fourth heat exchanger, and the cooler is connected with the other end of the third heat exchanger through a second thermostat;
所述换热系统包括密闭沟渠，其具有倾斜平板型上盖1，所述上盖1的外表面铺设保温层，沿着所述上盖1的倾斜方向，在其上开设若干凝结水引流渠道，该所述各引流渠道汇聚在置于所述上盖1的倾斜底边的导水槽2，所述密闭沟渠的两端部安装密封门，所述导水槽2由密封门伸出。换热过程中，会有大量水蒸气在上盖1凝结为凝结水，通常被认为是一种可回收的洁净水，为对这部分水进行回收利用，将上盖1设置为平板型倾斜上盖1，且开设若干凝结水引流渠道，将凝结在上盖1的凝结水通过重力作用引流，并汇聚在上盖1的倾斜底边的导水槽2，以使得这部分凝结水被收集。而铺设保温层，是为了保证低温季节不结冰，如冬季时，上盖1温度过低，可能导致凝结水结冰的问题出现。所述倾斜平板型上盖的倾斜角度为5～10度，优选为8度，由于上盖倾斜设置的目的是为了收集凝结水，如果倾斜角度过小，则凝结水不易流动，不能到达导水槽，使得凝结水无法被引流收集；而过大角度，又使得凝结水流速难以控制，产生溢流现象，且过大的角度，还浪费了大量的保温层材料，该角度范围是经过大量的角度更换实验发现的较佳范围，凝结水在该范围下流速较为理想，能够适配收集速度，且不会发生溢流现象，在该角度下，保温层材料的使用不会导致明显的成本增加。在该实施例中，对海水的蒸发凝结水进行回收，是得到洁净水的一种非常有效的手段，这种回收发生在换热过程中，进一步促进了回收的水量，比如，被处理的海水的流量是10000吨/小时，按照万分之一的蒸发量，每小时的蒸发量可以达到1吨，一天收集的洁净水能达到24吨左右，收集的水量非常可观。The heat exchange system includes an airtight ditch, which has an inclined flat top cover 1, an insulation layer is laid on the outer surface of the top cover 1, and several condensate drainage channels are opened on it along the inclination direction of the top cover 1 , the said drainage channels converge in the water guide groove 2 placed on the inclined bottom edge of the upper cover 1, the two ends of the airtight ditch are equipped with sealed doors, and the water guide groove 2 protrudes from the sealed door. During the heat exchange process, a large amount of water vapor will condense into condensed water on the upper cover 1, which is generally considered as a kind of recyclable clean water. In order to recycle this part of water, the upper cover 1 is set as a flat-shaped inclined upper Cover 1, and set up several condensed water drainage channels to drain the condensed water condensed on the upper cover 1 by gravity, and gather in the water guide groove 2 on the inclined bottom edge of the upper cover 1, so that this part of the condensed water is collected. The purpose of laying the insulation layer is to ensure that the low temperature season does not freeze. For example, in winter, the temperature of the upper cover 1 is too low, which may cause the freezing of condensed water. The inclination angle of the inclined plate type upper cover is 5 to 10 degrees, preferably 8 degrees. Since the purpose of the upper cover is to collect condensed water, if the inclination angle is too small, the condensed water will not flow easily and cannot reach the gutter , so that the condensed water cannot be drained and collected; and the excessively large angle makes it difficult to control the flow rate of the condensed water, resulting in overflow phenomenon, and the excessively large angle also wastes a lot of insulation layer materials. Replace the preferred range found in the experiment. The flow rate of condensate in this range is ideal, which can adapt to the collection speed and will not overflow. Under this angle, the use of insulation layer materials will not lead to a significant increase in cost. In this embodiment, recycling the evaporative condensed water of seawater is a very effective means to obtain clean water. This recovery occurs in the heat exchange process, which further promotes the amount of recovered water. For example, the treated seawater The flow rate is 10,000 tons per hour. According to the evaporation rate of 1/10,000, the evaporation rate per hour can reach 1 ton, and the clean water collected in a day can reach about 24 tons. The collected water volume is very considerable.
该系统中，流入第一次换热后的海水的入水口安装在一侧密封门上，并具有过滤网，以过滤掉第一次换热后的海水在排放流动过程中落入的垃圾等较为大件的东西。所述沟渠的水平下盖铺设一组U型PE中介水回流管3，该组的各PE中介水回流管3间呈半包围式均匀排布，并在间隙填充沙子密实，各PE中介水回流管3安装有循环泵，且与中介水储水箱连通，并在连通管道上安装控制阀；U型PE中介水回流管3内即循环流动的中介水，储水箱的水可直接来自自来水，在需要时，可使用储水箱中的水补充PE中介水回流管3中的中介水。In this system, the water inlet of the seawater after the first heat exchange is installed on one side of the sealed door, and has a filter to filter out the garbage that falls into the seawater after the first heat exchange during the discharge flow. Bigger stuff. A group of U-shaped PE intermediary water return pipes 3 is laid on the horizontal lower cover of the ditch, and the PE intermediary water return pipes 3 of this group are evenly arranged in a semi-enclosed manner, and the gaps are filled with sand densely, and each PE intermediary water returns The pipe 3 is equipped with a circulating pump, and communicates with the intermediary water storage tank, and a control valve is installed on the communication pipe; the U-shaped PE intermediary water return pipe 3 is the circulating intermediary water, and the water in the storage tank can be directly from tap water. When needed, the water in the water storage tank can be used to supplement the intermediary water in the PE intermediary water return pipe 3 .
作为冷却水的海水与火电厂的汽轮机凝汽器换热，换热后的海水由一侧密封门进入，在所述密闭沟渠中与PE中介水回流管3中的中介水换热，PE中介水通过水箱连通于膨胀箱的中空层，以使得换热后的中介水提升膨胀箱内的冷却工质的温度。The seawater used as cooling water exchanges heat with the steam turbine condenser of the thermal power plant. After heat exchange, the seawater enters through a sealed door on one side, and exchanges heat with the intermediary water in the PE intermediary water return pipe 3 in the closed ditch, and the PE intermediary The water is connected to the hollow layer of the expansion tank through the water tank, so that the intermediary water after heat exchange raises the temperature of the cooling working medium in the expansion tank.
而用沙子密实U型PE中介水回流管3，一方面起固定管的作用，另一方面，沙子的热传递较好，适合换热使用，如果没有使用沙子，一旦易粘接的杂质长期吸附于管上，必将极大影响热交换效率。The U-shaped PE intermediary water return pipe 3 is densely packed with sand. On the one hand, it plays the role of fixing the pipe. On the other hand, the heat transfer of sand is better, which is suitable for heat exchange. If sand is not used, once the impurities that are easy to bond are adsorbed for a long time On the tube, it will greatly affect the heat exchange efficiency.
第一次换热后的海水由一侧密封门进入，在所述密闭沟渠中与PE中介水回流管3中的中介水换热；在PE中介水回流管3的上层覆盖一层透水砖4，所述透水砖4倾斜铺设，且在位于倾斜最低处的透水砖4的附近挖出排沟，使位于倾斜最低处的透水砖4与排沟连通，所述排沟配备有刮板，排沟中铺设有用于刮板行进的轨道；所述上盖1与透水砖4的铺设倾斜方向一致；使用透水砖4的目的是，在U型PE中介水回流管3与进水之间形成一层过滤，使得水可以通过透水砖4换热且杂质被透水砖4过滤，而为了避免透水砖4被杂质粘接，将其倾斜设置，以使得杂质受重力作用，由透水砖4滑下进入排沟，只要定期清理排沟即可，并且使用轨道带动刮板最排沟进行清理，可以使用控制器控制清理的周期和强度，清理效果较佳，延长了透水砖4的使用时间和清理时间。所述透水砖的铺设倾斜角度是7～12度，优选为10度，在该方案中，可以优选在透水砖上表面贴附透水滑层，以使得杂质更易滑下落入排沟，透水砖倾斜铺设的目的是为了使得杂质受重力滑下到排沟，由于海水在引入电厂时，已经被过滤一次，因而，排放过程中杂质明显的较海里的海水少一些，在这种情况下，无需使得透水砖倾斜角度过大；透水砖倾斜角度大，杂质容易落下，然而却也使得海水容易在排沟附近积聚，导致换热不均匀的问题，而角度过小，杂质不易落入排沟，经过大量倾斜实验发现，上述范围最为理想，在此范围内，杂质容易滑落到排沟中，且不会造成排沟附近的海水积聚，而上盖1与透水砖4的铺设倾斜方向一致，目的是为了在上盖的凝结水发生溢流时，由于落下的凝结水温度与海水温度不同会影响换热均匀，因而，作出上述限定，即使发生溢流，由于倾斜方向一致，溢流水一般会流到排沟附近，远离透水砖，降低对换热的影响。在本实施例中，优选海水引入密闭沟渠的量维持在刚没过透水砖或者没过透水砖，且刚没过第二传动链条，此时换热效果较佳。The seawater after the first heat exchange enters through a sealed door on one side, and exchanges heat with the intermediary water in the PE intermediary water return pipe 3 in the closed ditch; the upper layer of the PE intermediary water return pipe 3 is covered with a layer of permeable bricks 4 , the permeable brick 4 is laid obliquely, and a drainage ditch is dug near the permeable brick 4 at the lowest point of the inclination, so that the permeable brick 4 at the lowest point of the inclination is connected with the drainage ditch, and the drainage ditch is equipped with a scraper to drain A track for the scraper to travel is laid in the ditch; the laying inclination direction of the upper cover 1 and the permeable brick 4 is consistent; the purpose of using the permeable brick 4 is to form a U-shaped PE intermediate water return pipe 3 and the water inlet. Layer filtration, so that water can exchange heat through the permeable brick 4 and impurities are filtered by the permeable brick 4, and in order to prevent the permeable brick 4 from being bonded by impurities, it is set at an incline so that the impurities are slid down by the permeable brick 4 to enter under the action of gravity Drainage, as long as the drainage is cleaned regularly, and the track is used to drive the scraper to clean the most drainage, the controller can be used to control the cleaning cycle and intensity, the cleaning effect is better, and the use time and cleaning time of the permeable brick 4 are prolonged. . The inclination angle of the laying of the permeable bricks is 7-12 degrees, preferably 10 degrees. In this scheme, it is preferable to attach a permeable sliding layer on the upper surface of the permeable bricks, so that impurities can slide down and fall into the ditch more easily, and the permeable bricks are inclined The purpose of laying is to make the impurities slide down to the ditch by gravity. Since the seawater has been filtered once when it is introduced into the power plant, the impurities in the discharge process are obviously less than the seawater in the sea. In this case, there is no need to make The inclination angle of the permeable brick is too large; the inclination angle of the permeable brick is large, and the impurities are easy to fall, but it also makes it easy for seawater to accumulate near the drain, resulting in uneven heat transfer. A large number of inclination experiments have found that the above-mentioned range is the most ideal. Within this range, impurities are easy to slide into the ditch without causing seawater to accumulate near the ditch. The laying of the upper cover 1 and the permeable brick 4 are in the same direction. The purpose is to In order to prevent the uniformity of heat transfer due to the temperature difference between the falling condensate water and the seawater temperature when the condensate water on the upper cover overflows, the above limitation is made. Even if overflow occurs, the overflow water will generally flow to Near the drain, keep away from permeable bricks to reduce the impact on heat exchange. In this embodiment, it is preferable that the amount of seawater introduced into the closed ditch is maintained at just submerged in the permeable bricks or submerged in the permeable bricks, and just submerged in the second transmission chain, and the heat exchange effect is better at this time.
然而，在实践中发现，只使用透水砖4进行过滤，在多次实践中发现，透水砖4的使用时间仍不理想，为了增加透水砖4的使用时间，也为了提高过滤效果，增加换热效率，在透水砖4的上层铺设耐腐蚀网5，所述耐腐蚀网5为单层钢丝网，当然，也可以是多层钢丝网，网丝呈横纵垂直交叉均匀排布；主动辊6和从动辊7安装在左右两侧密封门的支撑架上，第一传动链条8分别与所述主动辊6的前端和所述从动辊7的前端相连，第二传动链条12分别与所述主动辊6的后端和所述从动辊7的后端相连，以使所述主动辊6与所述从动辊7联动，所述耐腐蚀网5覆盖在第一传动链条8或第二传动链条12上；以此，使得耐腐蚀网5循环传动，让杂质粘接在钢丝网上，而为了增加钢丝网的过滤效果和使用时间，在所述两侧密封门的支撑架中的一个或两个安装有外网铲刀，以铲除外网上粘接的杂质，该所述铲刀可配合以支架伸出，使其能刮除外网粘接物，其下具有接料槽，接住粘结物，以定期清理，因而，该传动机构的耐腐蚀网可以伸出密封门，即铲刀位于外侧的密封门上(铲刀位于系统密闭空间之外，如图1)，以方便清理接料槽的粘接物，而为了考虑密封性，可以将该铲刀置于内侧的密封门上(铲刀位于系统密闭空间之内，如图2)。However, it has been found in practice that only permeable bricks 4 are used for filtration. It has been found in many practices that the service time of permeable bricks 4 is still not ideal. In order to increase the service time of permeable bricks 4 and improve the filtering effect, increase heat transfer Efficiency, on the upper layer of the permeable brick 4, a corrosion-resistant mesh 5 is laid, and the corrosion-resistant mesh 5 is a single-layer steel wire mesh. and the driven roller 7 are installed on the support frames of the left and right sides sealed doors, the first transmission chain 8 is connected with the front end of the driving roller 6 and the front end of the driven roller 7 respectively, and the second transmission chain 12 is connected with the front ends of the driven roller 7 respectively. The rear end of the driving roller 6 is connected to the rear end of the driven roller 7, so that the driving roller 6 is linked with the driven roller 7, and the corrosion-resistant net 5 is covered on the first transmission chain 8 or the second transmission chain 8. On the second transmission chain 12; thus, the corrosion-resistant mesh 5 is circulated, allowing impurities to stick to the steel mesh, and in order to increase the filtering effect and service time of the steel mesh, one of the support frames of the sealed doors on both sides Or two are equipped with an outer net scraper to remove the impurities bonded on the outer net. The said scraper can be extended with a bracket so that it can scrape the outer net adhesive. There is a receiving groove under it to catch The sticky matter can be cleaned regularly, therefore, the corrosion-resistant net of the transmission mechanism can extend out of the airtight door, that is, the blade is located on the outer airtight door (the blade is located outside the confined space of the system, as shown in Figure 1), to facilitate cleaning In order to consider the sealing, the blade can be placed on the inner sealing door (the blade is located in the closed space of the system, as shown in Figure 2).
本实施例中，为了防止膨胀水箱内的冷却工质和中空层内的中介水由于温度极低时，不能使用所述换热系统有效运行，所以在所述膨胀水箱内和中空层中还安装有辅助加热器，以在需要时候，能够快速加温，所述膨胀水箱的中空层具有补水口。In this embodiment, in order to prevent the cooling medium in the expansion tank and the intermediary water in the hollow layer from being unable to use the heat exchange system to operate effectively due to extremely low temperatures, a There is an auxiliary heater to heat up quickly when needed, and the hollow layer of the expansion tank has a water supply port.
在一种实施例中，所有与海水接触的设备、元器件等，均是耐腐蚀性的。In one embodiment, all equipment, components, etc. that are in contact with seawater are corrosion-resistant.
作为一种实施例，该风电场的基于海水源热泵的风电冷却防冻系统的防冻方法如下：As an example, the antifreeze method of the wind power cooling antifreeze system based on the seawater source heat pump of the wind farm is as follows:
S1.沿风电厂至海挖掘露天渠道，包括海水引入渠道和海水排放渠道，引流海水至风电厂区内；S1. Excavate open-air channels along the wind power plant to the sea, including sea water introduction channels and sea water discharge channels, to divert sea water to the wind power plant area;
S2.在所述海水排放渠道中选择部分渠段安装下述风电场的基于海水源热泵的风电冷却防冻系统，并由海水引入渠道引入作为冷却水的海水，将其与汽轮机凝汽器进行换热以液化蒸汽，该换热为第一次换热，并将第一次换热后的海水(约18度)引流至海水排放渠道；S2. Select part of the seawater discharge channel to install the wind power cooling antifreeze system based on the seawater source heat pump of the following wind farm, and introduce seawater as cooling water from the seawater introduction channel, and replace it with the steam turbine condenser The heat is liquefied steam, the heat exchange is the first heat exchange, and the seawater (about 18 degrees) after the first heat exchange is diverted to the seawater discharge channel;
S3.膨胀水箱中空层连通于PE中介水回流管，在风电机组停机时，风电机组的冷却系统中的冷却工质回流膨胀水箱，当风电机组需要启动时，PE中介水回流管中流动的来自中空层的中介水(约10度)与进入所述密闭沟渠的海水(约18度)换热，提高该中介水的温度，将热量提供给膨胀水箱内的冷却工质，使其融化并输送到冷却系统；S3. The hollow layer of the expansion water tank is connected to the PE intermediate water return pipe. When the wind turbine is shut down, the cooling medium in the cooling system of the wind turbine returns to the expansion tank. When the wind turbine needs to be started, the flow in the PE intermediate water return pipe comes from The intermediary water (about 10 degrees) in the hollow layer exchanges heat with the seawater (about 18 degrees) entering the closed ditch to increase the temperature of the intermediary water and provide heat to the cooling medium in the expansion tank to melt and transport to the cooling system;
在该中介水与海水换热过程中，海水的蒸发气凝结于所述密闭沟渠的倾斜上盖，并沿着凝结水引流渠道进入导水槽以收集净化水，该中空层的中介水与海水换热过程中，耐腐蚀网循环传动过滤，并由外网铲刀在传动过程中铲去粘接在耐腐蚀网上的杂质，排沟中的杂质由刮板定期刮除。During the heat exchange process between the intermediate water and seawater, the evaporated gas of seawater condenses on the inclined upper cover of the closed ditch, and enters the water guide channel along the condensed water drainage channel to collect purified water, and the intermediate water in the hollow layer exchanges seawater During the heating process, the corrosion-resistant mesh is cyclically driven and filtered, and the impurities bonded to the corrosion-resistant mesh are removed by the outer mesh blade during the transmission process, and the impurities in the ditch are regularly scraped off by the scraper.
以上所述，仅为本发明创造较佳的具体实施方式，但本发明创造的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明创造披露的技术范围内，根据本发明创造的技术方案及其发明构思加以等同替换或改变，都应涵盖在本发明创造的保护范围之内。The above is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto, any person familiar with the technical field within the technical scope of the disclosure of the present invention, according to the present invention Any equivalent replacement or change of the created technical solution and its inventive concept shall be covered within the scope of protection of the present invention.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710005347.9ACN106704115B (en) | 2017-01-04 | 2017-01-04 | The cooling winterization system of the wind-powered electricity generation based on sea water source heat pump of wind power plant |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710005347.9ACN106704115B (en) | 2017-01-04 | 2017-01-04 | The cooling winterization system of the wind-powered electricity generation based on sea water source heat pump of wind power plant |
| Publication Number | Publication Date |
|---|---|
| CN106704115Atrue CN106704115A (en) | 2017-05-24 |
| CN106704115B CN106704115B (en) | 2019-04-05 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710005347.9AActiveCN106704115B (en) | 2017-01-04 | 2017-01-04 | The cooling winterization system of the wind-powered electricity generation based on sea water source heat pump of wind power plant |
| Country | Link |
|---|---|
| CN (1) | CN106704115B (en) |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101275473A (en)* | 2008-03-24 | 2008-10-01 | 冼泰来 | Technological flows of solar energy, sea water temperature, residual heat combining generate electricity, heat supply, water supply and distilled water supplying plant |
| CN101734823A (en)* | 2009-12-25 | 2010-06-16 | 南京大学 | Seawater desalination process with low cost |
| CN102557176A (en)* | 2012-02-07 | 2012-07-11 | 绍兴文理学院 | Sea water desalinating device of cooling tower of coastal and island thermal power plants |
| CN104153946A (en)* | 2013-05-14 | 2014-11-19 | 国家电网公司 | Cold, heat, power and water poly-generation system comprehensively utilizing wind energy and seawater heat energy |
| EP2821639A1 (en)* | 2013-07-02 | 2015-01-07 | Alstom Renovables España, S.L. | Wind turbine blade leading edge inspection |
| CN104310515A (en)* | 2014-10-16 | 2015-01-28 | 苏州欧拉工程技术有限公司 | Mechanical vapor recompression seawater desalination method |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101275473A (en)* | 2008-03-24 | 2008-10-01 | 冼泰来 | Technological flows of solar energy, sea water temperature, residual heat combining generate electricity, heat supply, water supply and distilled water supplying plant |
| CN101734823A (en)* | 2009-12-25 | 2010-06-16 | 南京大学 | Seawater desalination process with low cost |
| CN102557176A (en)* | 2012-02-07 | 2012-07-11 | 绍兴文理学院 | Sea water desalinating device of cooling tower of coastal and island thermal power plants |
| CN104153946A (en)* | 2013-05-14 | 2014-11-19 | 国家电网公司 | Cold, heat, power and water poly-generation system comprehensively utilizing wind energy and seawater heat energy |
| EP2821639A1 (en)* | 2013-07-02 | 2015-01-07 | Alstom Renovables España, S.L. | Wind turbine blade leading edge inspection |
| CN104310515A (en)* | 2014-10-16 | 2015-01-28 | 苏州欧拉工程技术有限公司 | Mechanical vapor recompression seawater desalination method |
| Publication number | Publication date |
|---|---|
| CN106704115B (en) | 2019-04-05 |
| Publication | Publication Date | Title |
|---|---|---|
| CN1108993C (en) | Devices for desalination or purification of seawater or brackish water using solar energy | |
| KR100833122B1 (en) | Water Temperature Control Device | |
| CN111392793B (en) | High enriched salt solution treatment facility of coal industry | |
| CN205134426U (en) | Desolate and boundless photovoltaic power plant rainwater is collected and is utilized device | |
| KR101061305B1 (en) | Geothermal air conditioning system using rainwater | |
| CN106855030B (en) | wind power cooling and anti-freezing method based on seawater source heat pump for wind power plant | |
| CN203633259U (en) | Plant frost-proof system | |
| CN106556177B (en) | Thermal power plant's heat recovery method based on seawater as cooling water | |
| CN106704115A (en) | Wind power cooling antifreezing system based on seawater source heat pump for wind power farm | |
| CN106930790B (en) | Thermal power plant's heat recovery system based on seawater as cooling water | |
| CN106855330B (en) | Filtration method suitable for heat exchange and purification in power plants | |
| CN106839522B (en) | Parallel solar panel cooling and seawater heat exchange system in power plant | |
| CN106836138A (en) | The parallel solar panel cooling of power plant and the method for seawater to make heat exchange | |
| CN107235587A (en) | The filtration system for exchanging heat and purifying suitable for power plant | |
| CN1843948A (en) | Method and apparatus for seawater desalination, sewage purification and power supply | |
| CN107574962B (en) | A kind of construction sponge city environment protection ecologic roof | |
| RU105635U1 (en) | SNOW MELTING INSTALLATION | |
| CN210216353U (en) | A device for treating farmland saline-alkali drainage | |
| CN207196462U (en) | A kind of equipment for eliminating condensate in deaerator exhaust pipe | |
| CN202697367U (en) | Solar collection type roof sunlight greenhouse | |
| CN206624663U (en) | A kind of hot-air evaporating waste water system applied to inside air cooling tower | |
| CN213991858U (en) | Solar photovoltaic heating vegetable greenhouse | |
| CN205695538U (en) | A kind of Radix Puerariae cleans device | |
| CN215330996U (en) | Be used for factory building reinforced concrete roofing waterproof construction | |
| CN212222787U (en) | Sludge drying greenhouse system |
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |