Water-saving cooling tower

Abstract

The utility model provides a water-saving cooling tower which comprises a closed cooling tower and an open cooling tower which are communicated front and back, the closed cooling tower comprises a support frame, a plurality of finned tube bundles arranged on the support frame and a plurality of first fans arranged among the finned tube bundles, the open cooling tower comprises a base, a plurality of water passing cavities formed in the base and a water collecting tray arranged at the bottom of the base, filler is arranged in the water passing cavities, and a second fan is correspondingly arranged at the top of each water passing cavity. The cooling tower has the following technical effects that the closed cooling tower and the open cooling tower work cooperatively, so that the heat dissipation capability is remarkably improved, and the high-load cooling requirement is met. The closed cooling tower is free of water evaporation, the open cooling tower reduces water consumption through optimization design, and the water saving rate of the whole system reaches up to 85% or above. And an efficient fan and a variable-frequency intelligent control system are adopted, so that energy consumption is optimized, and operation cost is reduced. And through the water-saving and energy-saving design, the water fee and the electricity fee expenditure are obviously reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to cooling equipment technical field especially relates to a water -saving cooling tower. BACKGROUND

[0002] With global water resource shortage, energy shortage and environmental protection regulation increasingly strict, the high water consumption, high pollution problem of traditional cooling system increasingly highlights. Especially in petroleum chemical industry, electric power, metallurgy and other high energy consumption industries, the demand of efficient, water -saving, energy -saving cooling equipment continues to grow, and the market share of combined cooling system will significantly improve.

[0003] With the progress of technology, the current cooling equipment technology development has the following trends: intelligent control: through the introduction of PLC control system and internet of things technology, realize the remote monitoring and automatic regulation of equipment, further improve energy efficiency and operation stability. Material innovation: adopt new type corrosion -resistant material (such as stainless steel, magnesium aluminum zinc plate plating) and high -efficient fin design, improve the heat exchange efficiency and service life of equipment. Modular design: through modular design, simplify the installation and maintenance of equipment, improve the flexibility and adaptability of equipment. Environmental protection compliance: comply with international environmental protection standards (such as ISO14001), meet the demand of global market to environmental protection equipment.

[0004] But the current cooling equipment still has some problems, for example, the simple closed cooling tower in summer has the problem of insufficient heat dissipation capacity, and the traditional open cooling tower has the defect of high water consumption, so a new cooling tower equipment is needed. UTILITY MODEL CONTENT

[0005] In view of the deficiencies in the prior art, the utility model provides a water -saving cooling tower, which solves the problem of insufficient heat dissipation capacity of the simple closed cooling tower in summer in the prior art, and the defect of high water consumption of the traditional open cooling tower.

[0006] According to the embodiment of the utility model, a water -saving cooling tower, including the closed cooling tower and open cooling tower that communicate with each other, the closed cooling tower includes support frame, the finned tube bundle that sets up on support frame several and the first fan that sets up between finned tube bundle several tables, the finned tube bundle includes base pipe and fin, wherein base pipe is bent and is crossed and is around set up on support frame, the fin is around set up at base pipe outside, the first fan is vertically arranged in succession along the extension direction of finned tube bundle, and the first fan is parallelly distributed with each other between the interval;

[0007] The open cooling tower includes base, the water cavity that sets up on base several and the water collecting disc that sets up at the bottom of base, the water cavity inside is provided with filler, the water cavity top is also correspondingly provided with second fan, the second fan is horizontally arranged, the water cavity side is provided with air inlet grille, so that air enters.

[0008] Further, the fins include L-shaped, KL-shaped and bimetallic fins, and the arrangement is in a staggered or straight arrangement to optimize air flow distribution and heat exchange efficiency.

[0009] Further, the finned tube bundle is bent to pass between adjacent blowers, and the projection of the finned tube bundle in the horizontal direction is within the coverage range of the blowers.

[0010] Further, the air inlet of the first blower is further provided with a louver to adjust the air inlet amount.

[0011] Further, the filler is a honeycomb structure made of PVC material to increase the water film contact area and improve the heat exchange efficiency.

[0012] Further, the filler is a honeycomb structure made of PVC material to increase the water film contact area and improve the heat exchange efficiency.

[0013] Further, the water collecting disc covers the bottom surface of the entire water passing cavity, and the water collecting disc is inclined and connected with a water outlet pipe at the bottom end.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. The closed cooling tower and the open cooling tower work together to significantly improve the heat dissipation capacity and meet the high load cooling demand.

[0016] 2. The closed cooling tower has no water evaporation, the open cooling tower reduces water consumption through optimized design, and the overall system has a water saving rate of more than 85%.

[0017] 3. Energy saving and high efficiency: high efficiency fan and frequency conversion intelligent control system are adopted to optimize energy consumption and reduce operation cost. Through water saving and energy saving design, the water and electricity expenses are significantly reduced.

[0018] 4. High purity circulating medium and corrosion resistant material are guaranteed to prolong the service life of the equipment, reduce replacement and maintenance cost, and stabilize the equipment operation to reduce production interruption caused by cooling system failure and improve production efficiency.

[0019] 5. No special chemical additive, no thermal pollution and chemical pollution to the environment. DRAWINGS

[0020] Figure 1 It is a lateral schematic view of the closed cooling tower in the embodiment of the utility model.

[0021] Figure 2 It is a top view schematic view of the closed cooling tower in the embodiment of the utility model.

[0022] Figure 3 Figure 1 is a lateral schematic view of the open cooling tower in the embodiment of the present application.

[0023] Figure 4 Figure 2 is a top view of the water passing cavity of the open cooling tower in the embodiment of the present application.

[0024] In the above drawings: 1, support frame; 2, finned tube bundle; 3, first fan; 4, base; 5, water passing cavity; 6, filler; 7, second fan; 8, water collecting tray.

[0025] Support frame 1, finned tube bundle 2, first fan 3, base 4, water passing cavity 5, filler 6, second fan 7, water collecting tray 8. DETAILED DESCRIPTION

[0026] The technical solutions in the present application will be further described below in combination with the drawings and embodiments.

[0027] As shown in Figure 1 the embodiment of the present application, a water-saving cooling tower is provided, which comprises a closed cooling tower and an open cooling tower connected in series.

[0028] As shown in Figure 2 the embodiment, the closed cooling tower comprises a support frame 1, a plurality of finned tube bundles 2 arranged on the support frame 1, and a plurality of first fans 3 arranged between the finned tube bundles 2. The support frame 1 is used to support the overall structure of the equipment and ensure the stable operation of the equipment under high temperature and high pressure working conditions. The material is hot-dip galvanized steel or magnesium-aluminum-zinc plated sheet, which has high strength and corrosion resistance. The finned tube bundle 2 comprises a base pipe and fins, wherein the base pipe is arranged in a bent and crossed manner on the support frame 1, and the fins are arranged around the outside of the base pipe. At the same time, the finned tube bundle 2 passes between adjacent fans in a bent manner, and the projection of the finned tube bundle 2 in the horizontal direction is within the coverage range of the fan. The tube is usually made of stainless steel (S30408), and the fin is made of aluminum-magnesium alloy (AL1060) to improve the heat exchange efficiency and corrosion resistance. The fin includes L-shaped, KL-shaped and bimetallic fins, and the arrangement mode adopts cross arrangement or in-line arrangement to optimize the airflow distribution and heat exchange efficiency. The first fans 3 are vertically arranged in the extension direction of the finned tube bundle 2 at intervals, and the first fans 3 are distributed in parallel with each other at equal intervals. As a preferred, a louver is arranged at the air inlet of the first fan 3 to adjust the air intake.

[0029] When the closed cooling tower is working, the hot fluid enters the finned tube bundle 2 through the inlet pipe, the fan forces air to flow through the outside of the finned tube bundle 2, absorbs the heat of the medium in the tube, and the cooled medium flows out through the outlet pipe, completing the cooling cycle. During the whole process, the medium is completely isolated from the air, and no water is evaporated, realizing water-saving operation.

[0030] As shown in Figure 3As shown, the open cooling tower comprises a base 4, a plurality of water passing cavities 5 arranged on the base 4, a water collecting disc 8 arranged at the bottom of the base 4, the water passing cavity 5 is internally provided with a filler 6, the top of the water passing cavity 5 is further provided with a second fan 7 in correspondence, the second fan 7 is horizontally arranged, and the side of the water passing cavity 5 is provided with an air inlet grille so as to supply air. The filler 6 is a honeycomb structure made of PVC material, thereby increasing the water film contact area, improving the heat exchange efficiency, and simultaneously optimizing the airflow channel to reduce the wind resistance. The filler 6 is made of modified PVC material, and an anti-algae agent and an ultraviolet stabilizer are added to improve the service life.

[0031] As shown in the figure, Figure 4 In a further scheme, the top of the filler 6 is provided with a nozzle, which uniformly sprays the water entering the filler 6 below, ensuring that the water and air are in full contact. The nozzle is usually made of polypropylene / ABS, which has the characteristics of high temperature resistance and corrosion resistance. The water collecting disc 8 covers the bottom surface of all the water passing cavities 5, and the water collecting disc 8 is arranged in a whole inclined manner, and the bottom end of the water collecting disc 8 is connected with a water outlet pipe. The water collecting disc 8 is made of magnesium-aluminum-zinc plated sheet or stainless steel, which has the characteristics of corrosion resistance and easy cleaning.

[0032] When the open cooling tower is working, hot water is uniformly distributed to the surface of the filler 6 through the water distribution system. The fan forces air to flow through the filler 6 and exchanges heat with the water, absorbing the heat of the water. The cooled water flows into the water collecting disc 8, completing the cooling cycle. In the whole process, the water and air are in direct contact, and heat is dissipated through evaporation, realizing efficient cooling.

[0033] The overall working process of the embodiment of the utility model is: the hot fluid first enters the water-saving closed cooling tower, and is preliminarily cooled through the heat exchange between air and finned tube bundle 2. The fluid cooled preliminarily enters the all-steel square cross-flow open cooling tower, and is further reduced in temperature through the direct contact between water and air. The cooled fluid returns to the production system, completing the cooling cycle. In the whole process, the closed cooling tower reduces water evaporation, and the open cooling tower reduces water consumption through optimized design, realizing the balance of water saving and energy saving.

[0034] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the utility model and not to limit them. Although the utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the utility model can be modified or replaced equivalently without departing from the purpose and scope of the technical solutions of the utility model, and all of them should be covered in the scope of the claims of the utility model.

Claims

1. A water-saving cooling tower, characterized in that: The system includes a closed cooling tower and an open cooling tower connected front and rear. The closed cooling tower includes a support frame, several finned tube bundles mounted on the support frame, and several first fans mounted between the finned tube bundles. The finned tube bundles include base tubes and fins. The base tubes are bent and crisscrossed around the support frame, and the fins are arranged around the outside of the base tubes. The first fans are vertically arranged at intervals along the extension direction of the finned tube bundles, and the first fans are evenly distributed parallel to each other. The open cooling tower includes a base, several water passage chambers disposed on the base, and a water collection tray disposed at the bottom of the base. The water passage chambers are filled with packing material, and a second fan is disposed on the top of the water passage chambers. The second fan is horizontally disposed, and an air inlet grille is disposed on the side of the water passage chambers to allow air to enter.

2. The water-saving cooling tower as described in claim 1, characterized in that: The fins include L-shaped, KL-shaped, and bimetallic fins, arranged in a staggered or parallel pattern to optimize airflow distribution and heat exchange efficiency.

3. A water-saving cooling tower as described in claim 1, characterized in that: The finned tube bundle passes between adjacent fans in a bent shape, and the horizontal projection of the finned tube bundle is within the coverage area of ​​the fans.

4. A water-saving cooling tower as described in claim 1, characterized in that: The air inlet of the first fan is also equipped with louvers to regulate the air intake.

5. A water-saving cooling tower as described in claim 1, characterized in that: The filler is a honeycomb structure made of PVC, which increases the water film contact area and improves heat exchange efficiency.

6. A water-saving cooling tower as described in claim 1, characterized in that: The top of the packing material is equipped with a nozzle, which sprays the incoming water evenly onto the packing material below, ensuring that the water and air are in full contact.

7. A water-saving cooling tower as described in claim 1, characterized in that: The water collection tray covers the entire bottom surface of the water passage cavity. The water collection tray is tilted and its bottom end is connected to the water outlet pipe.

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