A cooling tower

Abstract

The present application relates to the field of cooling tower, and relates to a cooling tower, which comprises an outer basket, an upper top plate, an upper bottom plate, a lower top plate and a lower bottom plate fixed in the outer basket in sequence, the upper top plate and the upper bottom plate form an upper water tank, the lower top plate and the lower bottom plate form a lower water tank, the upper bottom plate and the lower top plate are provided with a plurality of annularly arranged and coaxial through holes, the through holes are provided with thin tubes, the lower end of the upper bottom plate is provided with a water leakage plate, the water leakage plate is provided with water leakage holes through which the thin tubes pass, a gap is arranged between the thin tubes and the water leakage holes, the thin tubes are connected with the upper water tank and the lower water tank, the upper water tank is connected with an internal circulation water outlet pipe, the lower water tank is connected with an internal circulation water inlet pipe, the lower end of the outer basket is provided with an opening, the outer basket is provided with an external circulation water inlet pipe, the external circulation water inlet pipe is located between the upper bottom plate and the water leakage plate, the hot water to be cooled in the thin tubes flows from bottom to top, and heat exchange is carried out with the cooling water flowing from top to bottom in the flowing process, so that the hot water to be cooled in the thin tubes is quickly cooled.

Description

Technical Field

[0001] This invention relates to the field of cooling towers, and specifically to a cooling tower. Background Technology

[0002] A cooling tower is a device that uses water as a circulating coolant to absorb heat from a system and release it into the atmosphere to lower the water temperature. Its cooling effect is achieved by the heat exchange between water and air flow to generate steam. The steam evaporates and carries away the heat, thus dissipating the waste heat generated in industrial processes or refrigeration and air conditioning systems to lower the water temperature and ensure the normal operation of the system. The device is generally barrel-shaped, hence the name cooling tower.

[0003] Patent No. 202010986702.7 discloses an energy-saving and environmentally friendly closed-loop cooling tower, comprising a cooling tower body, an internal circulation cooling mechanism, and an external circulation cooling mechanism. The internal circulation cooling mechanism includes an internal circulation coil assembly and an internal circulation water turbine. One end of the internal circulation coil assembly is connected to an internal circulation water pump, and the other end is connected to the inlet of the internal circulation water turbine. The internal circulation water turbine is located on the upper part of the cooling tower body, and the outlet of the internal circulation water turbine is connected to an internal circulation outlet pipe extending outside the cooling tower body. A fan is connected to the internal circulation water turbine. The external circulation cooling mechanism includes an external circulation water tank located at the bottom of the cooling tower body, an external circulation water pump connected to the external circulation water tank, an external circulation water turbine connected to the external circulation water pump, a water distribution pipe assembly connected to the outlet of the external circulation water turbine, and a fan connected to the external circulation water turbine. This invention reduces overall energy consumption by more than 70%, noise by more than 20%, and has a more significant cooling effect.

[0004] However, the cooling tower uses an internal circulation coil assembly for spray cooling. Because the spray is from top to bottom, the contact area between the spray and the bottom surface of the water pipe is small, resulting in poor cooling effect.

[0005] In summary, to address the shortcomings of existing technologies, it is necessary to design a cooling tower with a simple structure and good cooling effect. Summary of the Invention

[0006] To address the problems of the prior art, the present invention provides a cooling tower.

[0007] The objective of this invention can be achieved through the following technical solution: A cooling tower includes: an outer frame and an upper top plate, an upper bottom plate, a lower top plate, and a lower bottom plate fixed downwards inside the outer frame. The upper top plate and the upper bottom plate enclose an upper water tank, and the lower top plate and the lower bottom plate enclose a lower water tank. The upper bottom plate and the lower top plate are provided with a plurality of annularly arranged and coaxial through holes. A thin tube is provided in each through hole. A drain plate is provided at the lower end of the upper bottom plate. A drain hole is provided on the drain plate for the thin tube to pass through. A gap is provided between the thin tube and the drain hole. The thin tube connects the upper water tank and the lower water tank. An internal circulation outlet pipe is connected to the upper water tank, and an internal circulation inlet pipe is connected to the lower water tank. An opening is provided at the lower end of the outer frame, and an external circulation inlet pipe is provided on the outer frame. The external circulation inlet pipe is located between the upper bottom plate and the drain plate.

[0008] In a further improvement, a steel frame is provided at the bottom of the outer basket, a dike is provided at the outer end of the steel frame, and a water storage chamber is provided inside the dike.

[0009] As a further improvement, a ball valve is installed on the outside of the cofferdam.

[0010] In a further improvement, the upper top plate, upper bottom plate, lower top plate, lower bottom plate and drain plate are each provided with several annularly arranged ventilation openings, and the through holes and drain holes are arranged annularly outside the ventilation openings, and the top of the ventilation openings is connected to the top of the outer frame.

[0011] As a further improvement, a fan is provided on the top of the outer frame, and the fan is located above the ventilation opening on the top plate.

[0012] As a further improvement, a support column connects the lower top plate and the lower bottom plate.

[0013] Compared with the prior art, the cooling tower of the present invention has the following advantages: The hot water to be cooled flows from bottom to top inside the thin tubes, exchanging heat with the cooling water flowing from top to bottom during the flow. This rapidly cools the hot water inside the thin tubes. The numerous thin tubes with small diameters result in a small flow rate of the hot water inside, which exchanges heat with the large flow rate of cooling water in the outer basket. At the same time, the cooling water flows through the gaps in the annular drain holes, increasing the heat exchange contact area with the hot water inside the thin tubes, further improving the heat exchange rate, achieving rapid cooling, energy saving, and good performance. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 2 This is a schematic diagram of the internal structure of the present invention. Figure 3 for Figure 2 Structural diagram of the center front view Figure 4 This is a schematic diagram of the structure of the water leakage plate in this invention. In the diagram, 1-outer basket, 11-opening, 12-external circulation inlet pipe, 13-steel frame, 14-cofferdam, 15-water storage chamber, 16-ball valve, 17-ventilation opening, 18-fan, 2-upper top plate, 3-upper bottom plate, 4-lower top plate, 5-lower bottom plate, 51-support column, 61-through hole, 62-thin pipe, 7-upper water tank, 8-lower water tank, 81-internal circulation outlet pipe, 82-internal circulation inlet pipe, 9-drain plate, 91-drain hole. Detailed Implementation

[0015] In the description of this invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0016] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0017] The following describes the embodiments and appendices. Figure 1 ~6, further elaboration of the technical solution of the present invention.

[0018] Example 1 A cooling tower includes: an outer frame 1 and an upper top plate 2, an upper bottom plate 3, a lower top plate 4, and a lower bottom plate 5, which are sequentially fixed downward inside the outer frame 1. The upper top plate 2 and the upper bottom plate 3 enclose an upper water tank 7, and the lower top plate 4 and the lower bottom plate 5 enclose a lower water tank 8. The upper bottom plate 3 and the lower top plate 4 are provided with a plurality of annularly arranged and coaxial through holes 61, and thin tubes 62 are provided in the through holes 61. A drain plate 9 is provided at the lower end of the upper bottom plate 3. The plate 9 is provided with a drain hole 91 through which a thin tube 62 passes. There is a gap between the thin tube 62 and the drain hole 91. The thin tube 62 connects the upper water tank 7 and the lower water tank 8. An internal circulation outlet pipe 81 is connected to the upper water tank 8, and an internal circulation inlet pipe 82 is connected to the lower water tank 8. The lower end of the outer basket 1 is provided with an opening 11. An external circulation inlet pipe 12 is provided on the outer basket 1. The external circulation inlet pipe 12 is located between the upper bottom plate 3 and the drain plate 9.

[0019] like Figures 1-4As shown, the operating principle of this invention is as follows: Hot water requiring cooling enters the lower water tank 8 through the inner circulation inlet pipe 82, then flows upwards through several sets of thin pipes 62 until it reaches the upper water tank 7, and then flows out through the inner circulation outlet pipe 81. Cooling water enters the outer basket 1 through the outer circulation inlet pipe 12, located between the upper bottom plate 3 and the drain plate 9, and flows downwards through the gap between the drain plate 9 and the thin pipes 62. During the downward flow, the hot water in the thin pipes 62 undergoes heat exchange, and then flows to the outside through the lower opening 11. The total number of thin pipes 62 installed inside this invention is 576.

[0020] The hot water to be cooled flows from bottom to top inside the thin tubes, exchanging heat with the cooling water flowing from top to bottom during the flow. This rapidly cools the hot water inside the thin tubes. The numerous thin tubes with small diameters result in a small flow rate of the hot water inside, which exchanges heat with the large flow rate of cooling water in the outer basket. At the same time, the cooling water flows through the gaps in the annular drain holes, increasing the heat exchange contact area with the hot water inside the thin tubes, further improving the heat exchange rate, achieving rapid cooling, energy saving, and good performance.

[0021] As a further preferred embodiment, a steel frame 13 is provided at the bottom of the outer basket 1, and a dike 14 is provided at the outer end of the steel frame 13. A water storage chamber 15 is provided inside the dike 14, and a ball valve 16 is provided outside the dike 14. The warm water to be cooled in the internal circulation water inlet pipe 82 after heat exchange and cooling is collected in the water storage chamber 15 of the dike 14, further cooled with air, and then recycled.

[0022] As a further preferred embodiment, the upper top plate 2, upper bottom plate 3, lower top plate 4, lower bottom plate 5, and drainage plate 9 are each provided with a plurality of annularly arranged ventilation openings 17. The through holes 61 and drainage holes 91 are arranged annularly outside the ventilation openings 17. The top of the ventilation openings 17 is connected to the top of the outer frame 1. The top of the outer frame 1 is provided with a fan 18, which is located above the ventilation openings 17 of the upper top plate 2. The fan 18 is not shown in the accompanying drawings; only the fan mounting bracket is shown.

[0023] Multiple large-sized ventilation openings 17 pipes, in conjunction with fans 18, are used to air-cool the hot water inside the thin pipes, further improving the cooling effect.

[0024] As a further preferred embodiment, a support column 51 is connected between the lower top plate 4 and the lower bottom plate 5.

[0025] The preferred embodiments of the present invention have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of the present invention without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of the present invention through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A cooling tower, characterized in that, include: An outer basket and, sequentially, an upper top plate, an upper bottom plate, a lower top plate, and a lower bottom plate fixed downwards inside the outer basket. The upper top plate and the upper bottom plate enclose an upper water tank, and the lower top plate and the lower bottom plate enclose a lower water tank. The upper bottom plate and the lower top plate have several annularly arranged and coaxial through holes, each containing a thin tube. A drain plate is located at the lower end of the upper bottom plate, and the drain plate has drain holes through which the thin tubes pass. A gap exists between the thin tubes and the drain holes. The thin tubes connect the upper water tank and the lower water tank. An internal circulation outlet pipe is connected to the upper water tank, and an internal circulation inlet pipe is connected to the lower water tank. The lower end of the outer basket is equipped with... The outer basket has an opening and an external circulation water inlet pipe located between the upper bottom plate and the drain plate. A steel frame is installed at the bottom of the outer basket, with a dike at the outer end of the frame and a water storage chamber inside the dike. A ball valve is installed outside the dike. Several annularly arranged ventilation openings are provided on the upper top plate, upper bottom plate, lower top plate, lower bottom plate, and drain plate. Through holes and drain holes are arranged annularly outside the ventilation openings, and the top of each ventilation opening is connected to the top of the outer basket. A fan is installed on the top of the outer basket, positioned above the ventilation opening on the upper top plate. A support column connects the lower top plate and the lower bottom plate.

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