Ultrasonic resonance atomization temperature reduction device

Abstract

The utility model relates to an ultrasonic resonance atomization temperature reduction device, which adopts a plug-in nozzle atomization structure. According to the design, an ultrasonic resonance function is added on the basis of an original mechanical rotational flow atomizing nozzle, and resonance pieces inside the device are driven to vibrate by controlling high-frequency vibration of the resonance pieces outside the device, so that the diameter of spray droplets is changed, the atomizing effect after the droplets are sprayed out is controlled, the contact surface area of the droplets and steam is increased, and the heat exchange efficiency is improved; and the temperature reduction effect of the temperature and pressure reduction device under low load is improved, and the application range of the device is expanded.

Description

Technical Field

[0001] This utility model patent relates to a cooling device used in cooling and pressure reducing devices in thermal power, petrochemical and other fields. Vibration is used to control the droplet size of cooling water after atomization, so that the mixing effect of cooling water and main pipeline steam is improved, and the accumulation of water caused by poor atomization is reduced. At the same time, it is used to shorten the length of the cooling and pressure reducing device and improve the space utilization efficiency of the unit. Background Art

[0002] At present, the cooling part of the cooling and pressure reducing device of domestic units mostly adopts spring adjustable nozzles or mechanical fixed nozzles as cooling devices. However, both nozzles have certain limitations in use. The spring adjustable nozzle is large in size and cannot be inserted and installed in small-diameter pipes. It can only be sprayed from the top, but top spraying can easily cause water accumulation in the pipe, affecting the performance of the device; the mechanical fixed nozzle cannot adjust the nozzle area, and it is easy to spray water columns under low load, with poor atomization, causing water accumulation. The cooling and pressure reducing device often has hot standby or low-load cooling requirements, requiring adjustment under small cooling water flow. At this time, conventional cooling devices cannot meet the atomization requirements of the device. Summary of the invention

[0003] In order to solve the cooling demand of the cooling and pressure reducing device under low load or hot standby load and maintain the normal operation of the system, this patent provides an atomizing device, the nozzle inlet of which retains the swirl design of the spring adjustable nozzle, and on this basis, the resonance principle of the resonance plate and the ultrasonic atomization principle are used to realize the atomization of the nozzle, which reduces the size of the droplets sprayed by the nozzle, increases the contact area between the main steam and the droplets, and can achieve faster and better steam cooling.

[0004] The technical solution adopted by the utility model patent to solve the technical problem is: by adding an atomizing plate to the spiral nozzle, high-frequency vibration is performed through the external resonance plate, and after reaching the resonance frequency of the resonance plate, the resonance plate in the cooling device is driven to vibrate, and the high-frequency vibration of the resonance plate breaks the water droplets into micron level, thereby increasing the contact surface area between the droplets and the steam in the pipeline, thereby achieving rapid cooling. As shown in the figure, this design solves the problem that the cooling water atomization effect is poor when the flow rate is low in a large pipeline, and the mixing effect is not ideal and does not meet the requirements of the device. At the same time, by controlling the opening size of the resonance plate, the flow rate of the nozzle is controlled to ensure that the device will not cause internal water supply in the pipeline due to poor atomization caused by excessively large openings, thereby ensuring the operating efficiency of the device.

[0005] The purpose of this patent is to solve the problem that the temperature and pressure reduction device has poor working efficiency under low load, and to ensure that users can use the equipment at low cost and high efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] The present invention is further described below with reference to the accompanying drawings and examples.

[0007] Schematic diagram of the ultrasonic resonance nozzle structure.

[0008] Figure 1 1. Nozzle, 2. Swirl plate, 3. Resonance spray plate, 4. Nozzle gland, 5. Spiral wound gasket, 6. V-ring, 7. Resonance plate, 8. Electrical components.

[0009] Figure 2 9. Mixing pipeline.

[0010] Figure 1 (1) to (6) are assembled into the nozzle body, which is then installed on Figure 2 On the mixing pipe (9). Figure 1 (1) to (6) Figure 2 A partial enlarged view of the center nozzle body. DETAILED DESCRIPTION

[0011] In the embodiment shown in the figure, the nozzle gland (4) fixes the swirl plate (2), the resonance spray plate (3), the winding pad (5) and the V-shaped sealing ring (6) on the nozzle body (1), and the resonance plate (7) is powered by the electrical element (8), so that the resonance plate (7) vibrates at a high frequency, causing the resonance spray plate (3) to vibrate. After the resonance spray plate (3) breaks up the cooling water, it is sprayed into the mixing pipe (9) to increase the contact surface area between the cooling water and the steam, thereby realizing the atomization of the cooling water.

[0012] The ultrasonic resonance nozzle designed as above not only retains the advantage of the spiral nozzle that the medium can be rotated, but also ensures the atomization effect at low flow and low compliance in the device, ensuring the rapid and effective mixing.

Claims

1. The ultrasonic resonance atomization temperature reduction device mainly comprises a nozzle body (1), a swirl plate (2), a resonance spray plate (3), a nozzle gland (4), a spiral wound pad (5), a V-shaped sealing ring (6), a resonance plate (7), and an electrical component (8), and is characterized in that The swirl plate (2), the resonance spray plate (3), the winding pad (5) and the V-shaped sealing ring (6) are connected and fixed on the nozzle body (1) through the nozzle gland (4), and the rest of the structure of the conventional temperature reduction device is retained.

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