Evaporative condenser throttling splash-proof spray head

Abstract

The application provides an evaporative condenser throttling splash-proof spray head, which comprises a spray head body and a tapered interface connecting section arranged at the top end of the spray head body and forming an interference fit with a header mounting hole; a tapered hole section is arranged in the interior of the tapered interface connecting section, which is a deep-drawing tapered flow channel; a transition section is arranged below the tapered hole section; a water outlet is arranged at the bottom end of the transition section, which expands the outflow channel through deep drawing, reduces the water flow outlet flow rate, and relates to the technical field of evaporative condensers, wherein the tapered interface is used for realizing tool-free manual installation, the internal tapered flow channel is used for realizing throttling pressure equalization, and the large-diameter outlet is used for effectively reducing the flow rate to prevent splashing, so that the spray head has the advantages of convenient installation, uniform water flow, splash-proof water saving, low cost and the like, and is suitable for an evaporative condenser spray system.

Description

Technical Field

[0001] This utility model relates to the field of evaporator and condenser technology, and in particular to a throttling and splash-proof spray nozzle for evaporator and condenser. Background Technology

[0002] In evaporative condenser spray systems, the spray nozzles are key components affecting system performance. The reliability of the nozzle connections, the uniformity of water flow distribution, and the anti-splash performance directly determine the heat exchange efficiency and ease of operation and maintenance of the equipment.

[0003] Currently, similar printheads on the market have the following obvious defects:

[0004] First, the connection to the manifold mostly relies on threads or clips, requiring tools for tightening, making the installation process cumbersome, and long-term operation can easily lead to loosening and leakage due to vibration. Second, there is a lack of a dedicated throttling and pressure equalization structure, resulting in large flow deviations when multiple sets of nozzles are used in parallel, causing local dry areas on the surface of the heat exchange tubes, which seriously affects heat exchange efficiency. Third, excessively high flow velocities at the outlet can easily cause splashing, resulting in water waste and water accumulation around the equipment. Fourth, in terms of material selection, metal nozzles are more expensive, while plastic nozzles are mostly multi-part splicing structures with poor stability, making it difficult to balance economy and durability.

[0005] Therefore, there is an urgent need to develop a spray nozzle that can solve the above problems. Utility Model Content

[0006] To overcome the existing problems, this application provides a throttling and splash-proof spray nozzle for an evaporator condenser, which solves the problems of cumbersome installation, uneven flow distribution, easy splashing, and high manufacturing cost of existing nozzles.

[0007] The technical solution adopted by the embodiments of this application to solve its technical problem is:

[0008] An evaporative condenser throttling and splash-proof spray nozzle includes a nozzle body and a tapered interface connection section disposed at the top of the nozzle body, which forms an interference fit with the manifold mounting hole; the tapered interface connection section has a tapered hole section inside, which is a deeply excavated tapered flow channel; a transition section is provided below the tapered hole section; the bottom end of the transition section has a water outlet, which expands the outflow channel by deep excavation and reduces the water outlet velocity.

[0009] Preferably, the outer surface of the tapered interface connecting section is a smooth tapered surface and is provided with a guide slope. The tapered interface connecting section and the manifold mounting hole achieve a sealed connection without the need for additional sealing components.

[0010] Preferably, the taper of the tapered orifice section is consistent with the direction of water flow, thereby achieving water flow throttling and pressure balance.

[0011] Preferably, the transition section is an arc-shaped flow channel used to buffer the water flow and eliminate turbulence.

[0012] Preferably, the diameter of the outlet is more than twice the minimum diameter of the conical orifice.

[0013] Preferably, the top of the tapered interface connecting section is provided with a water inlet.

[0014] Preferably, the nozzle body is a one-piece molded plastic structure, and the nozzle body is suitable for multiple sets to be installed in parallel. The internal flow channel design achieves uniform flow distribution among the nozzle bodies.

[0015] The advantages of the embodiments of this application are:

[0016] The tapered interface connection section's interference fit and manual installation design significantly shorten installation time compared to traditional threaded / snap-fit ​​nozzles, requiring no specialized tools. Subsequent maintenance allows for direct plug-and-play replacement, reducing equipment downtime and lowering maintenance costs. The internal tapered orifice section and transition section work together to keep the flow deviation of multiple nozzles within a small range, improving the uniformity of heat exchange tube coverage and enhancing the overall heat exchange efficiency of the evaporator and condenser, thus avoiding localized insufficient heat exchange.

[0017] The large-diameter outlet at the bottom effectively reduces water flow velocity and saves water resources; at the same time, it reduces component corrosion and electrical failures caused by the humid environment around the equipment, extending the overall service life of the equipment. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] Figure 1 This is a schematic diagram of the overall structure of the throttling and splash-proof spray nozzle of the evaporator condenser of this utility model;

[0020] Figure 2 This is a schematic diagram of the front structure of the throttling and splash-proof spray nozzle of the evaporator condenser of this utility model;

[0021] Figure 3 This is a cross-sectional view of the throttling and splash-proof spray nozzle of the evaporator condenser of this utility model.

[0022] Explanation of key figure labels:

[0023] 1. Conical interface connection section; 2. Nozzle body; 3. Water inlet; 4. Water outlet; 5. Conical hole section; 6. Transition section. Detailed Implementation

[0024] This application provides a throttling and splash-proof spray nozzle for evaporative condensers, solving the problems in the prior art. The interference fit of the tapered interface connection section and the manual installation design significantly shorten the installation time compared to traditional threaded / snap-fit ​​nozzles, requiring no special tools. Later maintenance can be performed by direct plugging and unplugging, reducing equipment downtime and lowering maintenance costs. The internal tapered hole section and transition section work together to control the flow deviation of multiple nozzles within a small range, improve the uniformity of heat exchange tube coverage, improve the overall heat exchange efficiency of the evaporative condenser, and avoid the problem of insufficient local heat exchange.

[0025] The large-diameter outlet at the bottom effectively reduces water flow velocity and saves water resources; at the same time, it reduces component corrosion and electrical failures caused by the humid environment around the equipment, extending the overall service life of the equipment.

[0026] The technical solution in this application is to solve the above problems, and the overall approach is as follows:

[0027] Example

[0028] This embodiment provides a specific structure for a throttling and splash-proof spray nozzle for an evaporator condenser, such as... Figure 1-3 As shown, it includes a nozzle body 2 and a tapered interface connection section 1 disposed at the top of the nozzle body 2, which forms an interference fit with the manifold mounting hole;

[0029] The tapered interface connecting section 1 has a tapered hole section 5 inside, which is a deeply excavated tapered flow channel;

[0030] The outer surface of the tapered interface connecting section 1 is a smooth tapered surface and is provided with a guide bevel. The interference fit between the tapered interface connecting section 1 and the manifold mounting hole achieves a sealed connection without the need for additional sealing components.

[0031] Furthermore, the tapered interface connecting section 1 is used to connect with the mounting hole of the external manifold. Its outer surface is a precision-machined smooth tapered surface with a specific guide bevel, allowing for smooth insertion into the manifold mounting hole during installation. A reliable sealing connection is achieved through the interference fit between the tapered interface connecting section 1 and the manifold mounting hole. This mechanical seal method has a compact structure, eliminates the need for additional O-rings or gaskets, simplifies the installation process, and reduces material costs and potential leakage risks.

[0032] The taper of the conical orifice section 5 is consistent with the direction of water flow, achieving water flow throttling and pressure balance.

[0033] Furthermore, inside the conical interface connecting section 1, a conical hole section 5 is formed along its axial centerline. This conical hole section 5 is formed by deep drilling technology, forming a gradually converging conical flow channel. The taper direction of the conical hole section 5 is consistent with the main direction of water flow, that is, the inlet end has a larger diameter and the outlet end has a smaller diameter. This structure plays two key roles for the water flowing through it: first, to achieve effective throttling of water flow and precise control of flow rate; second, through the smooth change of the flow channel cross-sectional area, it helps to balance the water flow pressure and lay the foundation for subsequent flow equalization.

[0034] A transition section 6 is provided below the tapered hole section 5;

[0035] Furthermore, immediately below the conical hole section 5, a transition section 6 is provided. This transition section 6 is preferably an arc-shaped flow channel formed by a deep excavation process. Its curvature is optimized. After the water flow is accelerated through the conical hole section 5, it enters this arc-shaped transition section 6. This flow channel guides and buffers the water flow through its specific arc-shaped profile, effectively consuming some energy and significantly weakening or eliminating unstable flow phenomena such as turbulence and eddies that may occur, so that the water flow tends to be stable.

[0036] The bottom end of the transition section 6 is provided with an outlet 4. The diameter of the outlet 4 is more than twice the minimum diameter of the conical section 5. It expands the outflow channel by deep excavation and reduces the flow velocity at the water outlet. The transition section 6 is an arc-shaped flow channel used to buffer the water flow and eliminate turbulence.

[0037] Furthermore, the outlet 4 is also enlarged through a deep-digging process, making its flow cross-sectional area significantly larger than the minimum aperture of the aforementioned conical orifice section 5. The aperture of the outlet 4 is designed to be more than twice the minimum aperture of the conical orifice section 5, in order to further reduce the outlet velocity of the water flow when it finally sprays out of the nozzle, avoid the adverse effects that high-speed water flow may have on specific application scenarios, and at the same time help to form a more uniform and stable water outlet pattern.

[0038] The top of the tapered interface connecting section 1 is provided with a water inlet 3.

[0039] The nozzle body 2 is a one-piece molded plastic structure. The nozzle body 2 is suitable for multiple sets to be installed in parallel. The internal flow channel design achieves uniform flow distribution among the nozzle bodies 2.

[0040] Furthermore, the structural design of the nozzle body 2 is particularly suitable for use in parallel installation of multiple nozzles. When multiple such nozzles are installed on the same manifold at the same time, thanks to the optimized flow channel design that integrates the tapered orifice section 5 and the transition section 6, the inlet pressure difference between each nozzle can be effectively balanced, thereby ensuring that each nozzle can obtain approximately equal flow in the parallel system, achieving excellent flow uniformity distribution and solving the common problem of uneven flow in parallel systems.

[0041] During operation, pressurized water flows from the inlet 3 into the conical orifice section 5 inside the conical interface connection section 1. Here, the water flow is throttled and accelerated, and the pressure energy is partially converted into kinetic energy. At the same time, the flow channel structure plays a preliminary role in pressure balancing. Subsequently, the water flows into the arc-shaped transition section 6, where the flow velocity and direction are buffered and adjusted, and turbulence is effectively suppressed. Finally, the water flows out smoothly through the enlarged outlet 4 at a low and uniform flow velocity, completing the entire process.

[0042] Working principle:

[0043] During installation, align the tapered interface connecting section 1 with the manifold mounting hole and manually push it in using its tapered guide slope. The interference fit achieves a tight fit and seal, and the installation can be completed without any tools. Multiple nozzles can be assembled efficiently by a single person.

[0044] During operation, water enters from inlet 3 and first passes through the throttling effect of conical orifice section 5 to initially stabilize the pressure. Then, it passes through the arc-shaped flow channel of transition section 6 to eliminate pressure fluctuations, ensuring that the inlet pressure of each group of nozzles remains consistent. Ultimately, this achieves a uniform distribution of flow rate among multiple groups of nozzles, preventing localized dry areas or excessive moisture in the heat exchange tubes.

[0045] After pressure equalization, the water flows into the lower large-diameter outlet 4. Because the outlet diameter is more than doubled, the flow velocity is significantly reduced, so that the water flow can evenly cover the surface of the heat exchange tube, effectively preventing water waste and water accumulation around the equipment caused by high-speed splashing.

[0046] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A throttling and splash-proof spray nozzle for an evaporator condenser, characterized in that: It includes a nozzle body (2) and a tapered interface connection section (1) disposed at the top of the nozzle body (2), which forms an interference fit with the manifold mounting hole; The tapered interface connecting section (1) has a tapered hole section (5) inside, which is a deep-cut tapered flow channel; A transition section (6) is provided below the tapered hole section (5); The bottom end of the transition section (6) is provided with a water outlet (4), which expands the outflow channel by deep excavation and reduces the outflow velocity of the water outlet.

2. The throttling and splash-proof spray nozzle for an evaporator condenser according to claim 1, characterized in that: The outer surface of the tapered interface connecting section (1) is a smooth tapered surface and is provided with a guide slope.

3. The throttling and splash-proof spray nozzle for an evaporator condenser according to claim 1, characterized in that: The taper of the tapered orifice section (5) is consistent with the direction of water flow, thereby achieving water flow throttling and pressure balance.

4. The throttling and splash-proof spray nozzle for an evaporator condenser according to claim 1, characterized in that: The transition section (6) is an arc-shaped flow channel used to buffer the water flow and eliminate turbulence.

5. The throttling and splash-proof spray nozzle for an evaporator condenser according to claim 1, characterized in that: The diameter of the outlet (4) is more than twice the minimum diameter of the conical section (5).

6. The throttling and splash-proof spray nozzle for an evaporator condenser according to claim 1, characterized in that: The top of the tapered interface connecting section (1) is provided with a water inlet (3).

7. The throttling and splash-proof spray nozzle for an evaporator condenser according to claim 1, characterized in that: The tapered interface connecting section (1) achieves a sealed connection with the manifold mounting hole through an interference fit, eliminating the need for additional seals.

8. The throttling and splash-proof spray nozzle for an evaporator condenser according to claim 1, characterized in that: The nozzle body (2) is an integral plastic molded structure. The nozzle body (2) is suitable for multiple sets to be installed in parallel. The internal flow channel design realizes the uniform distribution of flow rate among each nozzle body (2).

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