A water collection type cooling tower with high cooling efficiency

Abstract

The present invention relates to a water collection type cooling tower with high cooling efficiency, comprising a tower body, a water receiving tray, a fan, and a spray pipe. The lower end of the tower body is provided with an air inlet, and the upper end is provided with an air outlet. The water receiving tray is arranged below the tower body and is connected with the tower body. The fan is arranged at the air outlet. The spray pipe is externally connected to a hot water source and extends into the tower body for spraying. The tower also comprises a water baffle and a sunshade. The water baffle is installed at the outer side of the air inlet, the inner side end of the water baffle is connected with the tower body, and the outer side end is tilted upward to form a water-blocking reflux structure. The sunshade is installed at the upper side of the air inlet, the inner side end of the sunshade is connected with the tower body, and the outer side end is extended outward to block the sunlight. The advantages are: 1. It has good sunshading, water blocking, and ventilation effects; 2. It is provided with a diversion adjustment mechanism, and the sunshade position can be adjusted according to the direction of sunlight, which further improves the sunshade effect. At the same time, the air duct can be extended by the diversion mechanism to improve the air intake efficiency.

Description

Technical Field

[0001] The invention relates to a cooling tower, in particular to a water collection type cooling tower with high cooling efficiency. Background Art

[0002] A cooling tower is a structure used to cool water. It is usually set in the air. Its height is calculated based on the heat exchange capacity. It is a structure that saves water and circulates water. The cooling tower currently used generally includes a tower body, a fan, a water tray, and a spray system. The lower part of the tower body is provided with an air inlet, and the upper end is provided with an air outlet. The fan is provided below the outlet of the tower body, and the water tray is provided below the tower body. The spray system is connected to a hot water source generated by the overheating system and sprays the hot water source into the tower body. When in use, natural wind enters the tower body from the air inlet under the induced wind action of the fan and moves from bottom to top. Hot water is sprayed into the tower body by the spray system and moves from top to bottom. Natural wind and hot water form a convection heat exchange inside the tower body. The hot wind formed after the heat exchange is discharged through the exhaust port, and the cooling water formed falls into the water tray, and re-enters the overheating system through the water outlet of the water tray for standby.

[0003] However, in the prior art, the air inlets are opened around the lower part of the tower body. Although the ventilation performance is guaranteed, on the one hand, the cooling water will splash out of the tower body through the air inlet after falling, resulting in resource waste and environmental pollution; on the other hand, the sunlight directly enters the tower body through the air inlet, and the sunlight will directly increase the temperature of the cooling water when it shines on the cooling water, which not only reduces the cooling effect but also is not conducive to the recycling of the cooling water. Summary of the invention

[0004] Purpose of the invention: In view of the above problems, the purpose of the present invention is to provide a water collection type cooling tower with high cooling efficiency, which can effectively improve the recycling rate and cooling efficiency of industrial water.

[0005] Technical solution: A water-collecting cooling tower with high cooling efficiency, comprising a tower body, a water receiving tray, a fan, and a spray pipe. An air inlet is provided at the lower end of the tower body and an air outlet is provided at the upper end. The water receiving tray is arranged below the tower body and is connected to the tower body. The fan is arranged at the air outlet. The spray pipe is connected to an external hot water source and extends into the interior of the tower body for spraying. It also comprises a water baffle and a sunshade. The water baffle is installed at the outer side of the air inlet, the inner end of the water baffle is connected to the tower body, and the outer end is tilted upward to form a water retaining reflux structure. The sunshade is installed at the upper outer side of the air inlet, the inner end of the sunshade is connected to the tower body, and the outer end extends outward to block sunlight.

[0006] The principle of the present invention is: under the induced draft of the fan, natural wind enters the interior of the tower body from the air inlet, and the spray pipe sprays the industrial hot water in the heat source water into the interior of the tower body. The natural wind moves from bottom to top in the tower body, and the industrial hot water moves from top to bottom in the tower body. The two form a heat exchange in the tower body, and then the hot air is discharged from the exhaust port, and the cooling water flows to the bottom of the tower body and flows into the water receiving tray, and then flows back to the bypass system through the water receiving tray for standby. During use, when the cooling water splashes to the air inlet, due to the water baffle installed on the outside of the air inlet, the cooling water splashes out of the air inlet and is blocked by the water baffle and under the influence of the slope reflux, it slides down from the water baffle and flows back to the interior of the tower body, effectively preventing the cooling water from splashing out of the tower body, causing resource waste and pollution. At the same time, the sunshade can block the sunlight to prevent it from directly entering the interior of the tower body through the air inlet, causing the cooling water to heat up and affect the cooling effect.

[0007] Preferably, the sun visor is arranged in parallel with the water baffle to allow smooth air intake.

[0008] Furthermore, it also includes a guide plate, the outer end of the guide plate has a folding portion less than 90 degrees to form a guide structure, and the inner end is installed above the water baffle through a connector. During ventilation, natural wind enters from the gap between the guide plate and the sunshade, and the folding portion less than 90 degrees on the outer side of the guide plate can form a good guide effect, and the guide plate can reduce the gap between the sunshade and the water baffle to further prevent sunlight from directly entering the tower body.

[0009] Furthermore, the folded portion extends outwardly beyond the vertical shielding range of the water retaining plate, so as to extend the air inlet duct while shielding the sunlight, thereby improving the air intake efficiency.

[0010] Furthermore, it also includes a limit support mechanism, the connecting member includes a rotating shaft and an ear seat, the inner end of the guide plate is connected to the rotating shaft, the rotating shaft is rotatably installed on the inner hole of the ear seat, the bottom surface of the ear seat is fixed to the water retaining plate, and a limit support structure is formed between the limit support mechanism and the inner end of the guide plate. This solution forms a rotation adjustment mechanism for the guide plate through the limit support mechanism and the connecting member: the inner end of the guide plate rotates with the rotating shaft as the fulcrum, and the limit support mechanism is used to form a limit support after the guide plate rotates to a fixed position to prevent it from continuing to rotate or turn back. This structure facilitates the flexible rotation of the guide plate according to the angle of sunlight exposure to adjust the sunshade angle and improve the sunshade effect.

[0011] Furthermore, the position-limiting support mechanism includes a slider and a spring base, the spring base is fixed on the water retaining plate and located inside the ear seat, the slider is arranged outside the spring base and connected to the spring inside the spring base, the slider is arc-shaped and its outer arc surface is evenly distributed with tooth profiles matching the inner end of the guide plate, and the inner end of the guide plate is clamped between adjacent tooth profiles. When stationary, the guide plate is clamped by the tooth profile limit, and after rotation, the guide plate pushes the slider inward under the action of the rotation force, and after stopping rotation again, the spring pushes the slider back, and then the guide plate is clamped by the tooth profile limit.

[0012] Furthermore, the position-limiting support mechanism further comprises a trapezoidal slide rail, a trapezoidal groove matching the trapezoidal slide rail is arranged on the bottom surface of the ear seat, and a sliding support structure is formed between the trapezoidal slide rail and the trapezoidal groove, so as to improve the support strength of the slider.

[0013] Furthermore, the air inlets are provided in at least two rows around the tower body, the water baffles are installed in at least two rows corresponding to the air inlets and form a shutter-like structure, the guide plates are arranged above each row of the water baffles, and the position-limiting support mechanism includes a connecting rod and an oil cylinder, the connecting rod connects each of the guide plates, and the connecting rod is driven by the oil cylinder to move up and down to adjust the rotation angle of the guide plates. This structure uses the oil cylinder to form a synchronous rotation adjustment of the guide plates.

[0014] Furthermore, it also includes a condensation plate, which is arranged between the exhaust port and the spray pipe, and the condensation plate is sealed and connected to the inner wall of the tower body. After the natural wind and industrial hot water undergo heat exchange in the tower body, the hot air discharged from the exhaust port will be mixed with tiny cooling water particles. The condensation plate is arranged between the exhaust port and the spray pipe to effectively filter the cooling water particles in the hot air, and prevent them from being discharged from the exhaust port and affecting the cooling efficiency. At the same time, directly condensing the cooling water particles through the condensation plate can accelerate the heat exchange, and the cooling water after condensation falls back into the water receiving tray, which can also improve the cooling water recovery efficiency.

[0015] Beneficial effects: Compared with the prior art, the advantages of the present invention are: 1. It has good sunshade, water-blocking and ventilation effects; 2. It is equipped with a diversion adjustment mechanism, which can adjust the sunshade position according to the direction of sunlight, further improving the sunshade effect. At the same time, the air duct can be extended by the diversion mechanism to improve the air intake efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the present invention;

[0017] Figure 2 It is a structural schematic diagram of a first limiting support mechanism of the present invention;

[0018] Figure 3 for Figure 2 Schematic diagram of the structure of the middle ear seat;

[0019] Figure 4 It is a schematic structural diagram of the second position-limiting support mechanism of the present invention. DETAILED DESCRIPTION

[0020] The present invention is further explained below in conjunction with the accompanying drawings and specific embodiments. These embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention.

[0021] A water collection cooling tower with high cooling efficiency, as shown in the attached Figure 1 As shown, it includes a tower body 1, a water baffle 2, a water receiving tray 3, a fan 4, a spray pipe 5, a sunshade 6, a guide plate 7, a connecting piece 8, a limit support mechanism 9, and a condensation plate 10.

[0022] The lower end of the tower body 1 is provided with an air inlet 11, and the upper end is provided with an air outlet 12. The water receiving tray 3 is arranged below the tower body 1 and is connected to the tower body 1. The fan 4 is arranged at the air outlet 12. The spray pipe 5 is connected to the hot water source and extends into the tower body 1 for spraying. The water baffle 2 is installed at the outer side of the air inlet 11, the inner end of the water baffle 2 is connected to the tower body 1, and the outer end is tilted upward to form a water baffle reflux structure. The sun visor 6 is installed at the upper outer side of the air inlet 11, the inner end of the sun visor 6 is connected to the tower body 1, and the outer end extends outward to block the sunlight. In this embodiment, the sun visor 6 is preferably arranged parallel to the water baffle 2. The outer end of the guide plate 7 has a folding portion 71 less than 90° to form a diversion structure, and the inner end is installed above the water baffle 2 through a connector 8. The folding angle of the folding portion 71 is preferably 60° to 90°, and most preferably 80°. In this embodiment, the folded portion 71 extends outwardly beyond the vertical shielding range of the water retaining plate 2. The connecting member 8 includes a rotating shaft 81 and an ear seat 82. The inner end of the guide plate 7 is connected to the rotating shaft 81. The rotating shaft 81 is rotatably mounted on the inner hole 821 of the ear seat 82. The bottom surface 822 of the ear seat 82 is fixed to the water retaining plate 2. A limiting support structure is formed between the limiting support mechanism 9 and the inner end of the guide plate 7. The condensation plate 10 is arranged between the exhaust port 12 and the spray pipe 5. The condensation plate 10 is sealed and connected to the inner wall of the tower body 1, or the condensation plate can also use two layers of 10-40 mesh thickened stainless steel screens to achieve the same effect.

[0023] The air inlet, water baffle and guide plate structure of this embodiment has multiple application arrangements, such as: when the air inlet is a single row opened around the lower end of the tower body, the water baffle and guide plate are also a single piece. When the air inlet is at least two rows opened around the lower end of the tower body, the water baffle and guide plate can be a single piece, and the inner side end of the water baffle is connected to the tower body below the lowest row of air inlets; or water baffles are installed on the outside of each row of air inlets, the water baffles and sunshades together form a shutter-like structure, and guide plates are installed above each water baffle.

[0024] At the same time, the limit support mechanism of this embodiment can be used as shown in the attached Figure 2 , 3 The first structure shown: the position-limiting support mechanism 9 includes a slider 91, a spring base 92, and a trapezoidal slide rail 93. The spring base 92 is fixed on the water baffle 2 and is located on the inner side of the ear seat 82. The slider 91 is arranged on the outer side of the spring base 92 and is connected to the spring inside the spring base 92. The slider 91 is arc-shaped and its outer arc surface is evenly distributed with tooth profiles 911 matching the inner side end of the guide plate 7. The inner side end of the guide plate 7 is clamped between adjacent tooth profiles 911. The bottom surface of the ear seat 82 is provided with a trapezoidal groove 823 matching the trapezoidal slide rail 93. A sliding support structure is formed between the trapezoidal slide rail 93 and the trapezoidal groove 823. This structure can realize the separate drive adjustment of the guide plates at each row of air inlets. In cold seasons, the air inlet channel can be appropriately closed by adjusting some guide plates to reduce the air inlet efficiency, which has a certain antifreeze effect.

[0025] You can also use the attached Figure 4 The second structure shown: the position-limiting support mechanism 9 includes a connecting rod 94 and a cylinder 95. The connecting rod 94 is fixedly connected to the guide plate 7 and the cylinder 95. The connecting rod 94 is driven by the cylinder 95 to move up and down to adjust the rotation angle of the guide plate 7. This structure can connect each guide plate at the same time through the connecting rod and drive the whole through the cylinder, has a high synchronization rate, and effectively improves the overall guide ventilation effect of the guide plate.

[0026] When in use, the natural wind enters the tower body from the air inlet through the fan, and the industrial hot water in the heat source water is sprayed into the tower body by the spray pipe. The natural wind moves from bottom to top in the tower body, and the industrial hot water moves from top to bottom in the tower body. The two form a heat exchange in the tower body, and then the hot air is discharged from the exhaust port, and the cooling water flows to the bottom of the tower body and flows into the water receiving tray, and then flows back to the bypass system through the water receiving tray for standby. During the process, the water baffle can prevent the cooling water from splashing out of the tower body, causing resource waste and pollution. The sunshade can block the sunlight and prevent it from directly entering the tower body through the air inlet, causing the cold water to heat up and affect the cooling effect. The guide plate can form a good diversion and ventilation effect, and can reduce the gap between the sunshade and the water baffle to further prevent the sunlight from directly entering the tower body. The connector and the limit support mechanism can adjust the guide plate to block the sunlight in conjunction with the rise and fall of the sun, thereby improving the sunshade and ventilation efficiency.

[0027] At the same time, in order to intuitively compare the cooling effect before and after the sunshade of this embodiment, as well as the water-saving effect before and after the use of the water retaining plate and the condensing plate, the cooling tower was tested within 10 days before and after the transformation. The comparison of the cooling effect before and after the transformation is shown in Table 1, and the water replenishment before and after the transformation is shown in Table 2. In Tables 1 and 2, serial numbers 1 to 10 are days 1 to 10, respectively.

[0028] Table 1 Comparison of cooling water effects

[0029]

[0030] Table 2 Comparison of water replenishment

[0031]

[0032] Combining Table 1 and Table 2, it can be seen that by comparing the test results within 10 days before and after the transformation, the cooling water effect and water-saving effect have been significantly improved.

Claims

1. A water collection type cooling tower with high cooling efficiency, comprising a tower body (1), a water baffle (2), a water receiving tray (3), a fan (4), a spray pipe (5), a sunshade (6), a guide plate (7), and a position limiting support mechanism (9), wherein the tower body (1) has an air inlet (11) at its lower end and an air outlet (12) at its upper end, the water receiving tray (3) being arranged below the tower body (1) and being in communication with the tower body (1), the fan (4) being arranged at the air outlet (12), the spray pipe (5) being connected to an external hot water source and extending into the tower body (1) for spraying, the water baffle (2) being installed at an outer position of the air inlet (11), and the inner end of the water baffle (2) being in contact with the tower body The sunshade (6) is installed at an upper position outside the air inlet (11), the inner end of the sunshade (6) is connected to the tower body (1), and the outer end extends outward to block sunlight. The sunshade (6) is arranged in parallel with the water baffle (2). The outer end of the guide plate (7) has a folded portion (71) less than 90 degrees to form a guide structure, and the inner end is installed above the water baffle (2) through a connecting member (8). The folded portion (71) extends outward beyond the vertical blocking range of the water baffle (2). The connecting member (8) includes a rotating shaft (81) and an ear seat (82). The inner end of the guide plate (7) is connected to the tower body (1), and the outer end extends outward to block sunlight. The rotating shaft (81) is connected to the water baffle (2), the rotating shaft (81) is rotatably mounted on the inner hole (821) of the ear seat (82), the bottom surface (822) of the ear seat (82) is fixed to the water baffle (2), a limiting support structure is formed between the limiting support mechanism (9) and the inner side end of the guide plate (7), the limiting support mechanism (9) comprises a slider (91), a spring base (92), a trapezoidal slide rail (93), a connecting rod (94) and an oil cylinder (95), the spring base (92) is fixedly mounted on the water baffle (2) and located on the inner side of the ear seat (82), the slider (91) is arranged on the outer side of the spring base (92) and connected to the inner side of the spring base (92). The slide block (91) is connected with a spring, the slide block (91) is arc-shaped and has tooth profiles (911) evenly distributed on its outer arc surface, which match the inner end of the guide plate (7), the inner end of the guide plate (7) is clamped between adjacent tooth profiles (911), the bottom surface of the ear seat (82) is provided with a trapezoidal groove (823) which matches the trapezoidal slide rail (93), a sliding support structure is formed between the trapezoidal slide rail (93) and the trapezoidal groove (823), the connecting rod (94) is fixedly connected to the guide plate (7) and the oil cylinder (95), and the connecting rod (94) drives the guide plate (7) to move up and down under the drive of the oil cylinder (95) to adjust the rotation angle of the guide plate (7).

2. A water collection type cooling tower with high cooling efficiency according to any one of claim 1, characterized in that: It also comprises a condensation plate (10), wherein the condensation plate (10) is arranged between the air outlet (12) and the spray pipe (5), and the condensation plate (10) is sealedly connected to the inner wall of the tower body (1).

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