Closed cooling tower

Abstract

The utility model provides a closed cooling tower which comprises a closed cooling tower body, a water storage pond is arranged at the bottom of the closed cooling tower body, a top plate is arranged at the top of the closed cooling tower body, and a cooler assembly and a spraying device are arranged on the side face of the closed cooling tower body. An auxiliary cooling assembly is arranged on the inner wall of the closed cooling tower body, air inlets which are evenly distributed are formed in the two sides of the closed cooling tower body and located above the water storage pond, and an exhaust part is arranged on the top plate. According to the closed cooling tower provided by the utility model, the cooler assembly and the spraying device on the side surface are matched for use to carry out cooling work and cooling of the cooler assembly, the auxiliary cooling assembly on the inner wall adopts four groups of water-permeable plates which are distributed at equal intervals, and the first to fourth water-permeable holes of which the apertures gradually change from top to bottom are designed; and stepped water curtains are formed among the water permeable plates, so that the contact time of water and air is further prolonged, and the cooling efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to cooling tower technical field especially relates to a closed cooling tower. BACKGROUND

[0002] Closed cooling tower, abbreviated as closed cooling tower, (also called evaporative air cooler, closed cooling tower) puts the tubular heat exchanger in the tower, and the heat exchange of circulating water through the flowing air and spraying water guarantees the cooling effect.

[0003] As the key equipment of industrial heat exchange, the core of closed cooling tower is to take away the heat of circulating water in the coil through the countercurrent contact of spraying water and air. In the traditional design, the spraying water for cooling usually directly falls to form a single water curtain, but due to the effect of gravity acceleration, the water flow speed is fast, the contact time of water and air is limited, which leads to insufficient heat exchange efficiency. In addition, uneven distribution of spraying water easily causes local coil surface dry burning, reduces the cooling effect and increases energy consumption. Some improvement schemes try to prolong the contact time by increasing the filler layer or optimizing the distribution of spray head, but the filler is easy to block and the maintenance cost is high, and the dense arrangement of spray head may increase the water flow resistance and energy consumption.

[0004] Therefore, it is necessary to provide a closed cooling tower to solve the above technical problems. CONTENT OF THE UTILITY MODEL

[0005] The utility model provides a closed cooling tower, solved the problem that the spraying water for cooling usually directly falls to form a single water curtain in the traditional design, the water flow speed is fast, the contact time of water and air is limited, which leads to insufficient heat exchange efficiency.

[0006] In order to solve the above technical problems, the utility model provides a closed cooling tower, which comprises: a closed cooling tower body, a water storage pool is arranged at the bottom of the closed cooling tower body, a top plate is arranged at the top of the closed cooling tower body, a cooler assembly and a spraying device are arranged on the side of the closed cooling tower body, an auxiliary cooling assembly is arranged on the inner wall of the closed cooling tower body, evenly distributed air inlets are formed in the two sides of the closed cooling tower body, the air inlets are located above the water storage pool, an air outlet is arranged on the top plate, a drain pipe is arranged through the closed cooling tower body on the side of the water storage pool, a water valve is arranged on the drain pipe, a temperature measurer, a water level alarm and an operation panel are arranged on the side of the closed cooling tower body away from the spraying device.

[0007] Preferably, the cooler assembly comprises a water inlet tank and a disc-shaped cooling pipe, a water inlet is arranged on the water inlet tank, the water inlet corresponds to the lower end of the disc-shaped cooling pipe, a first water outlet pipe is fixedly connected to the upper end of the disc-shaped cooling pipe, a terminal end of the first water outlet pipe is provided with a transfer water tank, a second water outlet pipe is arranged on the transfer water tank, and a first control valve is arranged on the second water outlet pipe.

[0008] Preferably, the side of the transfer water tank is provided with a backflow pipe, and the lower end of the backflow pipe is communicated to the water storage pool.

[0009] Preferably, the spraying device comprises a support plate, a water pump is arranged on the support plate, a water supply pipe is arranged on the water pump, the upper end of the water supply pipe is fixedly connected with a spraying pipe, the spraying pipe penetrates through the side wall of the closed cooling tower body and is fixedly connected with the same, the spraying pipe is located above the auxiliary cooling assembly, and the lower portion of the spraying pipe is provided with a plurality of water outlet nozzles which are equidistantly distributed.

[0010] Preferably, the auxiliary cooling assembly comprises a fixing seat and a plurality of water permeable plates, the water permeable plates are provided with four groups and are equidistantly distributed, and the water permeable plates are sequentially provided with uniformly distributed first water permeable holes, second water permeable holes, third water permeable holes and fourth water permeable holes from top to bottom.

[0011] Preferably, the air exhaust part comprises a base, a mounting frame is arranged on the base, a driving motor is arranged on the mounting frame, and an exhaust fan is arranged at the output end of the driving motor.

[0012] Compared with the related art, the closed cooling tower has the following beneficial effects:

[0013] The closed cooling tower is provided with the cooler assembly and the spraying device which are used in cooperation to perform cooling work and cooling of the cooler assembly, the auxiliary cooling assembly of the inner wall adopts four groups of equidistantly distributed water permeable plates, the first water permeable hole to the fourth water permeable hole which are gradually changed in aperture from top to bottom are designed, a stepped water curtain is formed between the water permeable plates, the water and air contact time is further prolonged, and the cooling efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 The structure diagram of a preferred embodiment of the closed cooling tower provided in the utility model Figure 1 ;

[0015] Figure 2 The structure diagram of a preferred embodiment of the closed cooling tower provided in the utility model Figure 2 ;

[0016] Figure 3 The structure diagram of the inside of the closed cooling tower body in the utility model is shown in the figure.

[0017] Figure 4 The structure diagram of the cooler assembly in the utility model is shown in the figure.

[0018] Figure 5 The structure diagram of the auxiliary cooling assembly in the utility model is shown in the figure.

[0019] The figure label: 1, closed cooling tower main body, 2, water storage pool, 3, top plate, 4, cooler assembly, 41, water inlet tank, 42, water inlet, 43, disc-shaped cooling pipe, 44, first water outlet pipe, 45, transfer water tank, 46, second water outlet pipe, 47, first control valve, 48, return pipe, 49, second control valve, 5, spraying device, 51, support plate, 52, water pump, 53, water supply pipe, 54, spraying pipe, 55, water outlet nozzle, 6, auxiliary cooling assembly, 61, fixing seat, 62, water permeable plate, 63, first water permeable hole, 64, second water permeable hole, 65, third water permeable hole, 66, fourth water permeable hole, 7, air inlet, 8, exhaust part, 81, base, 82, mounting frame, 83, drive motor, 84, exhaust fan, 9, drain pipe, 10, water valve, 11, temperature measurer, 12, water level alarm, 13, operation panel. DETAILED DESCRIPTION

[0020] The utility model will be further explained below in combination with the drawings and embodiments.

[0021] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 , wherein, Figure 1 It is a preferred embodiment structure diagram of a closed cooling tower provided by the utility model Figure 1 ;

[0022] Figure 2 It is a preferred embodiment structure diagram of a closed cooling tower provided by the utility model Figure 2 ;

[0023] Figure 3 It is a structure diagram of the closed cooling tower main body in the utility model;

[0024] Figure 4 It is a structure diagram of the cooler assembly in the utility model;

[0025] Figure 5 It is a structure diagram of the auxiliary cooling assembly in the utility model.

[0026] The utility model provides a closed cooling tower, which comprises a closed cooling tower body 1, a water storage pool 2 arranged at the bottom of the closed cooling tower body 1, a top plate 3 arranged at the top of the closed cooling tower body 1, a cooler assembly 4 and a spraying device 5 arranged at the side of the closed cooling tower body 1, an auxiliary cooling assembly 6 arranged on the inner wall of the closed cooling tower body 1, evenly distributed air inlets 7 formed at both sides of the closed cooling tower body 1 and located above the water storage pool 2, an air outlet 8 arranged on the top plate 3, a drain pipe 9 arranged through the closed cooling tower body 1 at the side of the water storage pool 2, a water valve 10 arranged on the drain pipe 9, and a temperature measurer 11, a water level alarm 12 and an operation panel 13 arranged at the side of the closed cooling tower body 1 away from the spraying device 5.

[0027] The cooler assembly 4 performs cooling work, the spraying device 5 cools the cooler assembly 4, and the auxiliary cooling assembly 6 assists the spraying device 5 to achieve better cooling effect; the air outlet 8 on the top plate 3 and the air inlets 7 on both sides form an air convection channel, thereby improving heat dissipation efficiency; the drain pipe 9 and the water valve 10 arranged at the side of the water storage pool 2 facilitate regular cleaning or discharge of stored water, so that the water quality is kept clean; the temperature measurer 11 and the water level alarm 12 are arranged to monitor the running state of the system in real time, and the operation panel 13 is arranged to realize centralized control.

[0028] The cooler assembly 4 comprises a water inlet tank 41 and a disc-shaped cooling pipe 43, the water inlet tank 41 is provided with a water inlet 42 corresponding to the lower end of the disc-shaped cooling pipe 43, the upper end of the disc-shaped cooling pipe 43 is fixedly connected with a first water outlet pipe 44, the distal end of the first water outlet pipe 44 is provided with a transfer water tank 45, the transfer water tank 45 is provided with a second water outlet pipe 46, and the second water outlet pipe 46 is provided with a first control valve 47.

[0029] The cooler assembly 4 adopts the structure that the water inlet tank 41 is combined with the disc-shaped cooling pipe 43, the water inlet 42 corresponds to the lower end of the disc pipe, and the water flows continuously from bottom to top, so that the heat exchange area is increased by the spiral structure of the disc pipe, and the cooling efficiency is improved.

[0030] The side of the transfer water tank 45 is provided with a backflow pipe 48, and the lower end of the backflow pipe 48 is communicated with the water storage pool 2.

[0031] If the temperature of the disc-shaped cooling pipe 43 is not high after completing cooling, the second control valve 49 can be opened, so that part of the cooling water is led back to the water storage pool 2 through the backflow pipe 48, a recycling mechanism is formed, water resource consumption is reduced, the water level of the water storage pool 2 is kept stable, and frequent water replenishment is avoided.

[0032] The spraying device 5 comprises a support plate 51, a water pump 52 is arranged on the support plate 51, a water supply pipe 53 is arranged on the water pump 52, the upper end of the water supply pipe 53 is fixedly connected with a spraying pipe 54, the spraying pipe 54 penetrates through the side wall of the closed cooling tower body 1 and is fixedly connected with the side wall, the spraying pipe 54 is located above the auxiliary cooling assembly 6, and a plurality of water outlet nozzles 55 that are equidistantly distributed are arranged on the lower portion of the spraying pipe 54.

[0033] The spraying device 5 fixes the water pump 52 through the support plate 51, ensures that the water supply pipe 53 is stably connected with the spraying pipe 54, the water pump 52 provides continuous pressure to make the spraying water uniformly cover the surface of the coil pipe, a continuous water film is formed to strengthen the evaporative heat dissipation effect, and the equidistantly distributed water outlet nozzles 55 can avoid local dryness or water accumulation, ensure the uniformity of spraying coverage and reduce cooling dead angles.

[0034] The auxiliary cooling assembly 6 comprises a fixing seat 61 and water permeable plates 62, the water permeable plates 62 are arranged in four groups and are equidistantly distributed, and the water permeable plates 62 are sequentially provided with uniformly distributed first water permeable holes 63, second water permeable holes 64, third water permeable holes 65 and fourth water permeable holes 66 from top to bottom.

[0035] The auxiliary cooling assembly 6 adopts four groups of equidistantly distributed water permeable plates 62, the first water permeable hole 63 to the fourth water permeable hole 66 are designed to gradually change in diameter from top to bottom, the spraying water falls through the multiple layers of water permeable plates 62, the water contact area and time with air are increased, the water flow speed and dispersion degree are adjusted in stages, the water stays in the air for a longer time, the evaporative heat dissipation is promoted, and the cooling efficiency is further improved; the fixing seat 61 ensures that the water permeable plates 62 are firmly installed, and meanwhile, the multiple layers of water permeable plates 62 form a stepped water curtain, the mixing effect of air and water flow is enhanced, and the heat exchange efficiency is further improved.

[0036] The exhaust part 8 comprises a base 81, a mounting frame 82 is arranged on the base 81, a driving motor 83 is arranged on the mounting frame 82, and an exhaust fan 84 is arranged at the output end of the driving motor 83.

[0037] The driving motor 83 of the exhaust part 8 drives the exhaust fan 84 to rotate at a high speed, the humid and hot air in the tower is exhausted, a negative pressure environment is formed to accelerate the external air to be sucked from the air inlet 7, and air circulation is realized.

[0038] The working principle of the closed cooling tower is as follows:

[0039] The cooler assembly 4 performs cooling work, the spraying device 5 cools the cooler assembly 4, and the auxiliary cooling assembly 6 assists the spraying device 5 to achieve better cooling effect; the air exhaust part 8 on the top plate 3 and the air inlet 7 on the two sides form an air convection channel, so that the heat dissipation efficiency is improved; the side of the water storage pool 2 is provided with a drain pipe 9 and a water valve 10, so that the water storage can be cleaned or discharged regularly, and the water quality is kept clean; the temperature measurer 11 and the water level alarm 12 are arranged to monitor the running state of the system in real time, and the operation panel 13 is arranged to centrally control.

[0040] Compared with the related art, the closed cooling tower has the following beneficial effects:

[0041] The cooler assembly 4 and the spraying device 5 on the side are used in cooperation to perform cooling work and cooling of the cooler assembly 4; the auxiliary cooling assembly 6 on the inner wall is provided with four groups of equidistantly distributed water permeable plates 62, first to fourth water permeable holes 63 to 66 with a gradually changed aperture from top to bottom are designed, and a stepped water curtain is formed between the water permeable plates 62, so that the water and air contact time is further prolonged, and the cooling efficiency is improved.

[0042] The above is only an embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structure or equivalent process conversion or direct or indirect application in other related technical fields by using the content of the utility model specification and drawings is also included in the patent protection range of the utility model.

Claims

1. A closed-loop cooling tower, characterized in that, include: The closed-loop cooling tower body includes a water storage tank at its bottom, a top plate at its top, cooler components and a spray system on its sides, auxiliary cooling components on its inner wall, evenly distributed air inlets on both sides of the body located above the water storage tank, an exhaust system on the top plate, a drain pipe penetrating the side of the water storage tank with a water valve, and a temperature measuring device, a water level alarm, and an operation panel on the side of the body away from the spray system.

2. A closed-loop cooling tower according to claim 1, characterized in that, The cooler assembly includes a water inlet tank and a disc-shaped cooling pipe. The water inlet tank is provided with a water inlet, which corresponds to the lower end of the disc-shaped cooling pipe. The upper end of the disc-shaped cooling pipe is fixedly connected to a first water outlet pipe. A transfer water tank is provided at the end of the first water outlet pipe. A second water outlet pipe is provided on the transfer water tank, and a first control valve is provided on the second water outlet pipe.

3. A closed-loop cooling tower according to claim 2, characterized in that, The transfer water tank is equipped with a return pipe on its side, and the lower end of the return pipe is connected to the water storage tank.

4. A closed-loop cooling tower according to claim 1, characterized in that, The spraying device includes a support plate, on which a water pump is mounted. A water supply pipe is mounted on the water pump. A spraying pipe is fixedly connected to the upper end of the water supply pipe. The spraying pipe passes through and is fixedly connected to the side wall of the closed cooling tower body. The spraying pipe is located above the auxiliary cooling components. Multiple equally spaced water nozzles are provided at the lower part of the spraying pipe.

5. A closed-loop cooling tower according to claim 1, characterized in that, The auxiliary cooling component includes a fixed base and a water-permeable plate. The water-permeable plate is provided with four groups of equally spaced water-permeable holes, and the water-permeable plate has a first water-permeable hole, a second water-permeable hole, a third water-permeable hole and a fourth water-permeable hole evenly distributed from top to bottom.

6. A closed-loop cooling tower according to claim 1, characterized in that, The exhaust unit includes a base, a mounting bracket is provided on the base, a drive motor is provided on the mounting bracket, and an exhaust fan is provided at the output end of the drive motor.

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