Energy-saving water collecting device of mechanical draft cooling tower

Abstract

The utility model belongs to the field of energy-saving environment-friendly equipment, and particularly relates to an energy-saving water collecting device of a mechanical draft cooling tower, which comprises a hyperbolic outer cylinder, the bottom diameter of the outer cylinder is larger than the top diameter of a diffusion pipe, four groups of supports are arranged at the bottom of the outer cylinder in the circumferential direction, the included angle between every two adjacent supports is 90 degrees, and sound wave generating devices are arranged at the bottoms of the supports. A flow guide groove is formed in the inner wall of the outer cylinder. The energy-saving water collecting device adopting the structure can be directly sleeved on the top of a diffusion pipe of the existing mechanical draft cooling tower, small water drops in ascending air flow are vibrated through sound waves generated by the sound wave generating device, so that the small water drops collide with one another to form larger water drops to drop, meanwhile, the design of the hyperbolic outer cylinder improves the air draft amount, and the air draft efficiency is improved. Therefore, the load of the fan is reduced, the energy consumption is reduced, and meanwhile, the water-saving and energy-saving effects are achieved.

Description

Technical Field

[0001] The utility model belongs to the field of energy-saving, water-saving and environmentally friendly equipment, and particularly relates to an energy-saving water collecting device for a mechanical ventilation cooling tower. Background Art

[0002] Mechanical ventilation cooling towers can exchange heat between cooling water carrying waste heat and humid air in the tower, so that the waste heat is transferred to the humid air and dissipated into the atmosphere. They are widely used in industries such as energy, steel, petrochemicals, metallurgy and large supermarkets. The top of the mechanical ventilation cooling tower is generally a diffuser, and a fan is provided below it to discharge the humid and hot saturated gas generated in the tower. This part of the humid and hot saturated gas contains a large amount of water vapor. Directly discharging it into the atmosphere will cause a large amount of water resource waste, and in most cases will produce fog. When the air flow is poor, thick water fog will form, affecting the visibility around the equipment. Although there is a technical solution of setting a water removal device in front of the fan in the existing technology, it is limited by the volume of the mechanical ventilation cooling tower and the effect of the water removal device is not good.

[0003] In the prior art CN220288280U, a long section of air duct is directly sleeved on the outside of the diffuser of the cooling tower. However, this method greatly increases the height of the mechanical ventilation cooling tower. The weight of the air duct plus the weight of the supporting structure will cause greater pressure on the mechanical ventilation cooling tower, which is prone to danger in bad weather. The cost is high and the overall structure of the mechanical ventilation cooling tower needs to be changed to make corresponding improvements. Moreover, this structure cannot achieve the recycling of water resources and is difficult to meet existing needs. Summary of the Invention

[0004] The present invention addresses the problems existing in existing mechanical ventilation cooling towers and provides an energy-saving water collection device for a mechanical ventilation cooling tower. The device comprises a hyperbolic outer tube, the bottom diameter of the outer tube being larger than the top diameter of the diffuser tube, four sets of brackets being arranged circumferentially at the bottom of the outer tube, with adjacent brackets forming a 90° angle, a sound wave generating device being arranged at the bottom of the brackets, and a flow guide groove being arranged on the inner wall of the outer tube. The energy-saving water collection device with this structure can be directly mounted on the top of the diffuser tube of an existing mechanical ventilation cooling tower. The sound waves generated by the sound wave generating device oscillate small water droplets in the rising airflow, causing them to collide with each other to form larger water droplets that fall. The design of the hyperbolic outer tube also increases the air extraction volume, thereby reducing the load on the fan and energy consumption, while achieving the effect of saving water and energy.

[0005] The specific technical solutions of the utility model are as follows:

[0006] A mechanical ventilation cooling tower energy-saving water collection device includes an outer tube, the bottom diameter of the outer tube is larger than the top diameter of the diffuser, four groups of brackets are arranged in the circumferential direction of the bottom of the outer tube, a sound wave generating device is arranged at the bottom of the front end of the bracket, and the inner wall of the outer tube is evenly provided with guide grooves; the outer tube is preferably a hyperbolic outer tube.

[0007] The above-mentioned energy-saving water collection device is suitable for mechanical ventilation cooling towers with a diffuser above the top fan. It can be directly installed on existing mechanical ventilation cooling towers. During installation, the hyperbolic outer cylinder can be directly sleeved on the top of the diffuser. The two can be connected by snap-fit connection or riveting, among which rivet connection is preferred, which can improve the stability of the connection between the two. The structure of the sound wave generating device used in this application is consistent with the sound wave generating device in the applicant's prior application CN220552308U. The activation and power adjustment of the sound wave generator are also consistent with the prior application, and the inventor will not elaborate on them.

[0008] With the above structure, the sound wave generator generates sound waves that act on the diffuser and hyperbolic outer tube, causing small water droplets in the rising airflow to oscillate and collide with each other to form larger droplets. Once the droplets grow larger, they fall under the action of gravity and are recovered, thereby reducing the amount of water in the exhaust gas and saving a large amount of water resources. Simultaneously, a number of guide grooves are provided on the inner wall of the outer tube. These grooves are directly provided on the inner wall, increasing the contact area between the inner wall and the water vapor and facilitating the water droplets to form a stream and fall back into the mechanical ventilation cooling tower. The sound waves act on the outer tube to create a oscillating effect, which can better promote the collection of water droplets in the guide grooves. At the same time, they have a self-cleaning effect on the inner wall of the outer tube and the diffuser.

[0009] In addition, the design of the hyperbolic outer cylinder increases the exhaust volume of the entire device, thereby reducing the load of the fan, reducing energy consumption, and achieving the effect of saving water and energy; and the hyperbolic outer cylinder in this application is relatively low in height, which will not cause the height of the entire mechanical ventilation cooling tower to be too high, so it is safer and more convenient to install and use, and is suitable for the improvement of existing mechanical ventilation cooling towers.

[0010] Preferably, the angle between adjacent brackets in this application is 90°; of course, you can also choose to set up less than four or more than four technical solutions. These solutions need to ensure that the brackets are evenly distributed in the circumferential direction, but the most preferred solution is still to use four brackets.

[0011] The hyperbolic outer cylinder in this application is preferably made of fiberglass to reduce structural weight and processing and installation costs. A reinforcing hoop may also be added to the outer wall of the hyperbolic outer cylinder to enhance its overall strength. A sealing structure, such as a rubber sealing ring, is preferably provided at the connection between the hyperbolic outer cylinder sleeve and the diffuser tube to prevent water and air leakage at the connection, while also reducing friction between the hyperbolic outer cylinder sleeve and the diffuser tube, thereby extending its service life.

[0012] In summary, the energy-saving water collection device with this structure can be directly installed on the top of the diffuser of the existing mechanical ventilation cooling tower. The sound waves generated by the sound wave generating device will vibrate the small water droplets in the rising air flow so that they collide with each other to form larger water droplets. At the same time, the design of the hyperbolic outer cylinder increases the exhaust volume, thereby reducing the load of the fan, reducing energy consumption, and achieving the effect of saving water and energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a structural diagram of the energy-saving water collection device of the utility model.

[0014] Figure 2 This is a top view of the energy-saving water collecting device of the utility model;

[0015] Figure 3 for Figure 2 Middle AA section view;

[0016] Figure 4 This is a schematic diagram of the structure of the energy-saving water collection device combined with the top of the mechanical ventilation cooling tower;

[0017] In the figure, 1 is the outer cylinder, 2 is the bracket, 3 is the sound wave generating device, 4 is the guide groove, 5 is the rivet, 6 is the diffusion pipe, and 7 is the fan. DETAILED DESCRIPTION

[0018] The following is a detailed description of the above contents of the present invention through specific implementation methods in the form of examples, but it should not be understood that the scope of the above subject matter of the present invention is limited to the following examples. All technologies realized based on the above contents of the present invention belong to the scope of the present invention.

[0019] The structure of the sound wave generating device used in the present invention is consistent with that of the sound wave generating device in the applicant's prior application CN220552308U. The start-up and power adjustment of the sound wave generator are also consistent with those in the prior application, and the inventor will not elaborate on them.

[0020] like Figure 1 and 2 As shown, an energy-saving water collection device for a mechanically draft cooling tower includes an outer tube 1, the bottom diameter of which is larger than the top diameter of a diffuser 6. Four sets of brackets 2 are arranged circumferentially around the bottom of the outer tube 1. A sound wave generator 3 is provided at the bottom front end of each bracket 2. Furthermore, guide grooves 4 are evenly distributed on the inner wall of the outer tube 1. Preferably, the outer tube 1 is a hyperbolic outer tube.

[0021] The energy-saving water collection device is suitable for mechanical draft cooling towers equipped with a diffuser 6 above a top fan 7. During installation, the hyperbolic outer sleeve is directly attached to the top of the existing diffuser in the mechanical draft cooling tower. Rivets 5 are used to secure the two together, enhancing the stability of the connection. A sealing structure, such as a rubber sealing ring, is installed at the junction between the hyperbolic outer sleeve and the diffuser to prevent water and air leakage, reduce friction between the sleeve and the diffuser, and extend the service life.

[0022] With the above structure, the sound wave generator generates sound waves that act on the diffuser and hyperbolic outer tube, causing small water droplets in the rising airflow to oscillate and collide with each other to form larger droplets. Once the droplets grow larger, they fall under the action of gravity and are recovered, thereby reducing the amount of water in the exhaust gas and saving a large amount of water resources. Simultaneously, a number of guide grooves are provided on the inner wall of the outer tube. These grooves are directly provided on the inner wall, increasing the contact area between the inner wall and the water vapor and facilitating the water droplets to converge into a stream and fall back into the mechanical ventilation cooling tower. The sound waves act on the outer tube, creating a oscillating effect that further promotes the collection of water droplets in the guide grooves. Furthermore, the inner wall of the outer tube and the diffuser have a self-cleaning effect.

[0023] In addition, the design of the hyperbolic outer cylinder increases the exhaust volume of the entire device, thereby reducing the load of the fan, reducing energy consumption, and achieving the effect of saving water and energy; and the hyperbolic outer cylinder in this application is relatively low in height, which will not cause the height of the entire mechanical ventilation cooling tower to be too high, so it is safer and more convenient to install and use, and is suitable for the improvement of existing mechanical ventilation cooling towers.

[0024] In this embodiment, the hyperbolic outer cylinder is preferably made of glass fiber reinforced plastic, which can reduce the structural weight and processing and installation costs. In other embodiments, a reinforcing hoop can be added to the outer wall of the hyperbolic outer cylinder to improve its overall strength.

[0025] The above description is only a preferred specific implementation method of the utility model, but the protection scope of the utility model is not limited to this. Any technician familiar with this technical field can make equivalent replacements or changes within the technical scope disclosed by the utility model based on the technical solution and utility model concept of the utility model, which should be covered by the protection scope of the utility model.

Claims

1. An energy-saving water collection device for a mechanical ventilation cooling tower, characterized by: The invention comprises an outer cylinder (1), the bottom diameter of the outer cylinder (1) is larger than the top diameter of the diffusion tube (6), four groups of brackets (2) are arranged in the circumferential direction of the bottom of the outer cylinder (1), a sound wave generating device (3) is arranged at the bottom of the front end of the bracket (2), and the inner wall of the outer cylinder (1) is evenly provided with guide grooves (4).

2. The energy-saving water collecting device for a mechanical ventilation cooling tower according to claim 1, characterized in that: The outer cylinder (1) is a hyperbolic outer cylinder.

3. The energy-saving water collecting device for a mechanical ventilation cooling tower according to claim 1, characterized in that: The outer cylinder (1) is sleeved on the top of the diffusion tube (6), and the two are connected by snap fastening or riveting.

4. The energy-saving water collecting device for a mechanical ventilation cooling tower according to claim 3, characterized in that: The outer cylinder (1) and the diffuser tube (6) are riveted together using rivets (5).

5. The energy-saving water collecting device for a mechanical draft cooling tower according to claim 3 or 4, characterized in that: The portion where the outer cylinder (1) is connected to the diffusion tube (6) is provided with a sealing structure.

6. The energy-saving water collecting device for a mechanical ventilation cooling tower according to claim 5, characterized in that: The sealing structure is a rubber sealing ring.

7. The energy-saving water collecting device for a mechanical ventilation cooling tower according to claim 1, characterized in that: The outer cylinder (1) is made of glass fiber reinforced plastic; a reinforcement hoop is provided on the outer wall of the outer cylinder (1).

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