Electrically-assisted water cooling tower system

Abstract

The utility model provides an electric auxiliary water cooling tower system which comprises a water cooling tower, a solar panel, a storage battery and an axial flow fan, wherein the inner waist part of the water cooling tower is provided with a filler, the top of the filler is provided with a hot water sprayer, the solar panel charges the storage battery, and the axial flow fan is arranged below the filler and can blow air upwards; a heating ring is arranged at the water spraying opening of the outer ring of the cooling tower, and the axial flow fan and the heating ring are powered by a storage battery. The axial flow fan blows air upwards, so that heat in the water cooling tower can be quickly discharged upwards, the cooling efficiency of the water cooling tower is further improved, and the cooling performance of the water circulation system is improved. In winter, the problem that the water spraying opening of the outer ring of the water cooling tower is frozen can be solved through the heating ring, the ice removing work is omitted, and the operation safety of equipment is guaranteed. And the two are powered by solar energy, so that energy is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of cooling towers in the power plant circulating water system, specifically an electric-assisted cooling tower system. Background Art

[0002] The cooling tower of the power plant is the terminal cooling device of the power plant and is arranged in the power plant circulating water system. Therefore, it plays a particularly important role in cooling the circulating water. However, the existing cooling tower is more sensitive to the climate, resulting in a decline in its use performance. In summer, due to the high temperature and the long-term direct sunlight on the cooling tower, the temperature of the cooling tower body rises, resulting in a poor cooling effect. In winter, ice hanging will occur at the bottom edge of the cooling tower. To avoid the adverse effects of icing on the tower body, and when cleaning, the ice hanging falling into the cooling water tank is likely to block the pipeline or cause pipeline vacuum, resulting in low flow rate and cavitation damage of the circulating water pump, and even leading to the occurrence of non-stop accidents of the power plant circulating water. Therefore, it is necessary to frequently clean the ice hanging, which increases the working intensity. In view of this, an electric-assisted cooling tower system. Summary of the Invention

[0003] The utility model aims to solve the problems in the background art:

[0004] The technical solution adopted by the utility model to solve its technical problems is: to provide an electric-assisted cooling tower system, including a cooling tower, with packing arranged at the waist inside the cooling tower, a hot water spray arranged at the top of the packing, and further including a solar panel and a storage battery. The solar panel is installed on the south side wall of the cooling tower, and the solar panel charges the storage battery. An axial flow fan is arranged below the packing, and the axial flow fan can blow upward; a heating coil is arranged at the water spraying port on the outer ring of the cooling tower. Among them, the axial flow fan and the heating coil are powered by the storage battery and their start and stop are controlled by a power controller.

[0005] Preferably, the solar panel is arranged along the outer wall contour of the cooling tower.

[0006] Preferably, it further includes an external power supply, and the external power supply can supply power to the heating coil and is controlled by a power controller.

[0007] Preferably, switches are respectively arranged between the power controller and the external power supply, and between the power controller and the storage battery.

[0008] Preferably, a steel structure frame is arranged on the side wall of the cooling tower and fixed on the side wall of the cooling tower by expansion bolts, and the solar panel is fixed on the steel structure frame.

[0009] Preferably, it further includes a recycled water system, which includes a pipeline body with an inlet and an outlet formed at both ends. The pipeline body is placed underground, and the inlet is placed on one side of the top of the cooling tower, and the outlet is placed above the water surface of the cold water pool. It also includes an underground cooling water pool arranged underground. The pipeline body passes through the underground cooling water pool, and a Roots blower is arranged on the pipeline body. The Roots blower is powered by a storage battery and controlled by a power controller. After the Roots blower operates, the inlet can suck the water vapor at the top of the cooling tower.

[0010] The beneficial effects of the present utility model are as follows: The present utility model includes an axial flow fan and a heating coil. By blowing air upward through the axial flow fan, the heat in the cooling tower can be quickly discharged upward, thereby improving the cooling efficiency of the cooling tower, enhancing the cooling performance of the water circulation system, and ensuring the stable operation of the steam turbine unit. In winter, the problem of ice formation at the water spraying openings on the outer ring of the cooling tower can be solved by the heating coil, eliminating the ice clearing work, and further avoiding the harm caused by icicles falling into the water tower pool, ensuring the safety of equipment operation. And both of them are powered by solar energy to save energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0012] Figure 1 is the structural schematic diagram of the electric-assisted cooling tower system provided by the embodiment of the present utility model;

[0013] Figure 2 is the power supply structural schematic diagram of the electric-assisted cooling tower system provided by the embodiment of the present utility model;

[0014] In the figure: 1 - solar panel, 2 - storage battery, 3 - power controller, 4 - axial flow fan, 5 - heating coil, 6 - recycled water system, 6.1 - inlet, 6.2 - outlet, 6.3 - underground cooling water pool, 6.4 - Roots blower, 7 - steel structure frame, a - cooling tower, a1 - cooling tower support, a2 - hot water spray, a3 - packing, b - cold water pool. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0015] The following further describes the above solutions with specific embodiments. It should be understood that these embodiments are used to illustrate the present utility model rather than limit the scope of the present utility model. The implementation conditions adopted in the embodiments can be further adjusted according to the conditions of specific manufacturers, and the implementation conditions not specified are usually the conditions in conventional experiments.

[0016] In a specific embodiment, an electric-assisted cooling tower system is provided, including an existing cooling tower a. A packing a3 is arranged at the waist inside the cooling tower a, and a hot water spray a2 is arranged on top of the packing a3. The hot water spray a2 can spray hot water onto the packing a3. The hot air and water vapor are pushed to the top opening of the cooling tower a through the bottom air intake of the cooling tower a to dissipate heat, thus realizing evaporation cooling.

[0017] In this example, to achieve efficient heat dissipation, external force is needed to quickly discharge the heat from the cooling tower a. In this example, an external axial flow fan is used. Specifically, it includes a solar panel 1, which is installed on the south side wall of the cooling tower a. The purposes are, first, to achieve traditional power generation and lighting, and second, to use the solar panel to block the south side wall that can be exposed to the sun in summer, thereby reducing the tower temperature and improving the heat dissipation efficiency. To further improve the lighting efficiency and aesthetics of the solar panel 1, the solar panel 1 is arranged along the outer wall contour of the cooling tower a. To further facilitate the installation, maintenance, disassembly and assembly of the solar panel, a steel structure frame 7 is arranged on the side wall of the cooling tower a and fixed to the side wall of the cooling tower a by expansion screws, and the solar panel 1 is fixed on the steel structure frame 7.

[0018] Since an axial flow fan 4 is arranged below the packing a3 in this example, after starting, the axial flow fan 4 can blow upward, so that the heat can quickly flow out of the cooling tower, thereby improving the heat dissipation and cooling effect. It should be noted that this state is usually suitable for use in summer operation or in working conditions that require rapid cooling.

[0019] In addition, in winter, due to the too low temperature, the spray or water vapor is very easy to freeze at the water spray opening on the outer circle of the cooling tower a, forming ice columns and affecting the performance of the tower body. To avoid the formation of ice columns, a heating coil 5 is arranged at the water spray opening on the outer circle of the cooling tower a. Similarly, the heating coil 5 is powered by a storage battery 2 and its start and stop are controlled by a power controller 3.

[0020] Therefore, the axial flow fan 4 can solve the problem of low heat dissipation and cooling efficiency of the cooling tower, and in winter, the heating coil 5 can solve the problem of ice formation at the water spray opening on the outer circle of the cooling tower a, eliminating the ice cleaning work, and thus avoiding the harm caused by the ice columns falling into the water tower pool. And both of them are powered by solar energy to save energy.

[0021] On this basis, to avoid the situation where the storage battery 2 cannot continuously supply power to complete the ice melting of the heating coil 5, such as when the solar panel is affected by rain, snow and other weather conditions and cannot generate electricity efficiently, this application also includes an external power supply, usually grid power. The external power supply can continuously supply power to the heating coil 5 and is also controlled by the power controller 3 to ensure continuous ice melting.

[0022] Similarly, for ensuring continuous power supply during system maintenance, switches are respectively arranged between the power controller and the peripheral power supply, and between the power controller and the storage battery, so that the power supply line can be conveniently switched.

[0023] In addition, when the cooling tower is working, a large amount of water vapor is lost from the top of the cooling tower, resulting in an increase in water consumption. On the one hand, to reduce water consumption, and on the other hand, to improve the cooling efficiency, the present application further includes a water recovery system 6, which includes a pipeline body with an inlet 6.1 and an outlet 6.2 formed at both ends. The pipeline body is placed underground, and the inlet 6.1 is placed on one side of the top of the cooling tower a. Preferably, the present application sets the inlet 6.1 on the north side of the cooling tower to reduce sunlight irradiation. The outlet 6.2 is placed above the water surface of the cooling water tank b. It also includes an underground cooling water tank 6.3 arranged underground. The pipeline body passes through the underground cooling water tank 6.3, and a Roots blower 6.4 is arranged on the pipeline body. After the Roots blower 6.4 works, the inlet 6.1 can suck the water vapor at the top of the cooling tower a into the pipeline. Since the groundwater is 10 to 20 °C lower than the exhaust temperature of the cooling tower, the water vapor liquefies into water after passing through the underground water tank, and the cooled water enters the cooling tower and the cooling tower pool, increasing the cooling effect of the cooling tower.

[0024] Similarly, the Roots blower 6.4 is powered by the storage battery 2 and controlled by the power controller 3.

[0025] It should be noted that the capacities of the solar panel 1 and the storage battery 2 are set according to the capacities of the axial flow fan, the Roots blower, and the heating coil. Only the heating coil 5 is put into operation in winter, and only the axial flow fan 4 is put into operation in summer. The capacity is the maximum value of the sum of the power of the axial flow fan 4 and the Roots blower, and the sum of the power of the heating coil and the Roots blower. Thus, reasonable power supply can be ensured, the power distribution rationality can be improved, and the improvement cost can be controlled.

[0026] Taking the above ideal embodiments of the present invention as inspiration, through the above description, relevant staff can completely make various changes and modifications without departing from the technical idea of this invention. The technical scope of this invention is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. An electrically assisted cooling tower system, comprising a cooling tower (a), wherein a filler (a3) ​​is arranged at the waist of the cooling tower (a), and a hot water spray (a2) is arranged on the top of the filler (a3), characterized in that: It also includes a solar panel (1) and a battery (2), wherein the solar panel (1) is installed on the south wall of the cooling tower (a), and the solar panel (1) charges the battery (2). An axial flow fan (4) is arranged below the filler (a3), and the axial flow fan (4) can blow air upwards; a heating coil (5) is arranged at the outer ring water sprinkling port of the cooling tower (a), wherein the axial flow fan (4) and the heating coil (5) are powered by the battery (2), and their start and stop are controlled by a power controller (3).

2. An electrically assisted cooling tower system as claimed in claim 1, characterized in that: The solar panel (1) is arranged along the outer wall contour of the cooling tower (a).

3. The electrically assisted cooling tower system according to claim 1, characterized in that: It also includes an external power supply, which can supply power to the heating coil (5) and is controlled by a power supply controller (3).

4. An electrically assisted cooling tower system as claimed in claim 3, characterized in that: Switches are respectively arranged between the power controller and the external power supply, and between the power controller and the storage battery (2).

5. The electrically assisted cooling tower system according to claim 1, characterized in that: A steel structure frame (7) is provided on the side wall of the cooling tower (a) and is fixed to the side wall of the cooling tower (a) by expansion screws, and the solar panel (1) is fixed on the steel structure frame (7).

6. The electrically assisted cooling tower system according to claim 1, characterized in that: The invention also comprises a water recovery system (6), which comprises a pipeline body, with an inlet (6.1) and an outlet (6.2) formed at both ends. The pipeline body is placed underground, and the inlet (6.1) is placed on one side of the top of the cooling tower (a), and the outlet (6.2) is placed above the water surface of the cooling pool (b). The invention also comprises an underground cooling pool (6.3) placed underground. The pipeline body passes through the underground cooling pool (6.3), and a Roots blower (6.4) is arranged on the pipeline body. The Roots blower (6.4) is powered by a storage battery (2) and controlled by a power controller (3). When the Roots blower (6.4) is in operation, the inlet (6.1) can suck in water vapor from the top of the cooling tower (a).

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