An evaporative condenser with a high-efficiency water removal device

Abstract

This utility model relates to the field of evaporative condenser technology, specifically an evaporative condenser with a high-efficiency water removal device, which solves the problem of poor water vapor separation efficiency in existing evaporative condensers. It includes a body with a gas guide pipe extending into the body from the top. Inside the gas guide pipe is a dual-shaft fan for discharging gas and support rods connected to the inner walls of the gas guide pipe at both ends. The dual-shaft fan is located above the support rods, and a rotating shaft is provided between the dual-shaft fan and the support rods. A locking block is provided on the rotating end of the dual-shaft fan, inserted along the top of the rotating shaft to limit the rotation direction of the shaft. A baffle is vertically connected to the side of the rotating shaft, parallel to the opening of the gas guide pipe. When the dual-shaft fan rotates, it drives the gas inside the body, carrying water vapor, to flow outwards and simultaneously impact the rotating baffle, where it is adsorbed and collected as water flowing down the inner wall of the gas guide pipe.

Description

Technical Field

[0001] This utility model relates to the field of evaporative condenser technology, specifically an evaporative condenser with a high-efficiency water remover device. Background Technology

[0002] Evaporative condensers are an important component of refrigeration systems, typically consisting of spray elements and heat exchange tubes. The spray elements spray water toward the heat exchange tubes to exchange heat with them. To improve the cooling effect of the water on the heat exchange tubes, dry, cold air is needed to exchange heat with the water sprayed by the spray elements, thereby lowering the water temperature.

[0003] A search revealed a Chinese patent (publication number: CN222895347U) that discloses an evaporative condenser. The device uses a spray system to spray water onto heat exchange tubes, achieving heat exchange. During this process, driven by a fan, some water vapor is carried away by the gas and discharged. This not only wastes spray water resources and increases the frequency of system water replenishment and operating costs, but more importantly, if the discharged humid gas directly contacts surrounding equipment or structures, it can easily cause corrosion of metal parts, short circuits in electrical equipment due to moisture, and affect the service life and operational safety of surrounding facilities. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an evaporative condenser with a high-efficiency water remover, which solves the problem of water vapor carried by the gas discharged from the aforementioned evaporative condenser.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an evaporative condenser with a high-efficiency water remover device, comprising a body, a gas guide pipe at the top of the body, the bottom of the gas guide pipe extending into the body; a dual-shaft fan and a support rod are provided inside the gas guide pipe, the two ends of the support rod are connected to the inner wall of the gas guide pipe, the dual-shaft fan is located above the support rod, and a rotating shaft is provided between the dual-shaft fan and the support rod; a locking block is provided at the rotating end of the bottom of the dual-shaft fan, and a slot matching the locking block is opened at the top of the rotating shaft, the locking block is inserted into the slot to limit the rotation direction of the rotating shaft; a baffle is vertically connected to the side of the rotating shaft, the baffle is parallel to the opening of the gas guide pipe; when the dual-shaft fan rotates, it can drive the humid gas inside the body to flow out of the gas guide pipe, and at the same time drive the rotating shaft and the baffle to rotate synchronously, the water vapor in the airflow is absorbed and gathered into water flow after hitting the rotating baffle, and flows down along the inner wall of the gas guide pipe.

[0006] Furthermore, a connecting pipe connects the air duct to the spray component inside the machine body; a cylindrical protrusion is provided at the top of the support rod, which extends into the bottom of the rotating shaft and engages with it; the baffle, rotating shaft, protrusion, and support rod are all provided with a flow channel, which is connected to the connecting pipe; a drain hole is provided at the bottom of the baffle, which is connected to the flow channel; some of the water in the spray component is discharged through the drain hole via the connecting pipe and the flow channel to cool the baffle.

[0007] Furthermore, a water-guiding cavity is provided inside the wall of the air-guiding pipe, and the water-guiding cavity is connected to the connecting pipe; a drain pipe is provided on the outer wall of the air-guiding pipe, and the drain pipe is connected to the water-guiding cavity and located above the water-guiding cavity; the water entering the water-guiding cavity cools the wall of the air-guiding pipe and exchanges heat with the surrounding gas, and then is discharged through the drain pipe.

[0008] Furthermore, multiple baffles are provided and evenly distributed in multiple layers along the axis of rotation; each layer has at least three baffles, and the baffles are arranged in a ring around the axis of rotation; the multiple baffles are staggered in axial position to ensure that they do not block each other, and when the baffles rotate, the gas can fully contact the baffles.

[0009] Furthermore, a scraper is provided at the end of the baffle, and the scraper is in contact with the wall of the air guide pipe; when the baffle rotates, the scraper rotates synchronously with it to push the water vapor on the pipe wall to gather into water droplets.

[0010] Furthermore, a guide groove is provided at the bottom of the rotating shaft, and the protrusion is inserted along the guide groove and cooperates with the rotating shaft; the top of the protrusion penetrates downward through the support rod and has a water flow hole, which is connected to the water guide cavity; a cavity is provided inside the baffle, one end of which is connected to the guide groove and the other end is connected to the drain hole; the guide groove, the water flow hole and the cavity together form a guide channel.

[0011] Furthermore, the locking block is cross-shaped, and the shape of the locking slot is adapted to the locking block.

[0012] Compared with the prior art, this utility model provides an evaporative condenser with a high-efficiency water remover device, which has the following beneficial effects:

[0013] This type of evaporative condenser with a high-efficiency water removal device utilizes a structure including a dual-shaft fan, a rotating shaft, and multiple layers of baffles with scrapers within the air duct. When the dual-shaft fan rotates, it drives the rotating shaft and multiple layers of baffles to rotate synchronously. This causes water vapor in the airflow to collide with the rotating baffles, be absorbed and collected into water, and flow downwards along the inner wall of the air duct. Simultaneously, the scrapers push the water vapor on the pipe wall to gather into water droplets, enhancing water vapor collection efficiency and effectively reducing the amount of water vapor carried in the exhaust gas. This avoids the waste of spray water resources caused by the exhaust of humid gas, reduces the frequency of system water replenishment, and thus reduces overall operating costs. Because it effectively separates water vapor from the exhaust gas, it reduces the possibility of humid gas directly contacting surrounding equipment or structures, greatly reducing the likelihood of metal component corrosion, electrical equipment short circuits due to moisture, and other problems. This ensures the service life of surrounding facilities and improves the operational safety of the entire system. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a three-dimensional structural diagram of the rotating shaft, baffle, scraper, and slot in this utility model;

[0016] Figure 3 This is a cross-sectional structural diagram of the rotating shaft, baffle, drainage hole, scraper, guide groove and cavity in this utility model;

[0017] Figure 4 This is a three-dimensional structural diagram of the dual-axis fan and locking block in this utility model;

[0018] Figure 5 This is a cross-sectional structural diagram of the air guide tube, support rod, connecting pipe, protrusion, water guide cavity, drain pipe, and water flow hole in this utility model.

[0019] Figure 6 This is a schematic diagram of a partial cross-sectional structure of the present invention.

[0020] In the diagram: 1. Body; 2. Air duct; 3. Support rod; 4. Dual-shaft fan; 5. Shaft; 6. Clamping block; 7. Baffle; 8. Connecting pipe; 9. Protrusion; 10. Drain hole; 11. Water guide cavity; 12. Drain pipe; 13. Scraper; 14. Slot; 15. Flow guide groove; 16. Cavity; 17. Water flow hole. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] An evaporative condenser disclosed in the prior art, with publication number CN222895347U, mainly comprises a shell, heat exchange tubes, spray components, circulating water assembly, and exhaust fan, etc. These are prior art components and will not be described in detail here. The fan in this device is located at the top of the shell. When it rotates, it discharges the evaporated water vapor from the shell, causing water waste and increasing the frequency of water replenishment. Therefore, we have improved the fan in this device.

[0023] Please see Figure 1-6 The present invention discloses an evaporative condenser with a high-efficiency water removal device, comprising a body 1, an opening at the top of the body 1, and a gas guide pipe 2 welded to the shell of the body 1 at the opening. The gas guide pipe 2 is vertical, with its top end extending beyond the top wall of the body 1 and its bottom extending downward into the interior of the body 1 and located above the spray element. This arrangement allows the gas guide pipe 2 to better perform its function of exhausting air.

[0024] The air duct 2 is equipped with a dual-axis fan 4 and a support rod 3. The main body of the dual-axis fan 4 is a dual-axis motor, and its blades are mounted on the rotating end above the motor. The dual-axis motor is equipped with a mounting bracket, which is installed on the inner wall of the air duct 2. This method provides a stable fixation for the dual-axis motor, thereby ensuring the stable operation of the dual-axis fan 4.

[0025] The support rod 3 is horizontally welded to the inner wall of the air duct 2 and is located below the dual-axis fan 4. A rotating shaft 5 is located at the top of the support rod 3, and a slot 14 is formed at the top of the rotating shaft 5. A locking block 6 is connected to the rotating end below the dual-axis motor, and the locking block 6 is inserted into the slot 14 to form a locking connection. The locking block 6 is preferably cross-shaped and matches the slot 14. It should be noted that locking blocks 6 with similar shapes such as straight lines or cross shapes are all within the scope of protection of this application. Through the limiting effect of the locking block 6 in the rotation direction of the rotating shaft 5, when the dual-axis fan 4 rotates, it can drive the rotating shaft 5 to rotate synchronously.

[0026] A baffle 7, parallel to the opening of the air duct 2, is vertically connected to the side of the rotating shaft 5. When the dual-axis fan 4 rotates, it causes the gas inside the machine body 1 to flow towards the air duct 2, and the water vapor carried in the airflow moves along with it. Since the baffle 7 is vertically connected to the side of the rotating shaft 5 and parallel to the opening of the air duct 2, it rotates with the rotating shaft 5, forming relative motion with the outward airflow. When the airflow hits the rotating baffle 7, the water vapor adheres to the baffle 7 due to inertia and the adsorption effect on the surface of the baffle 7. Over time, a large amount of water vapor accumulates, and when it reaches a certain amount, it converges into a water flow. Because the air duct 2 is vertically set, under the action of gravity, the water flow naturally flows down along the inner wall of the air duct 2, thus achieving the effect of separating the water vapor from the gas.

[0027] It should be noted that there are multiple baffles 7, and their connection with the rotating shaft 5 is as follows: they are evenly distributed along the axis of the rotating shaft 5 to form a multi-layer structure, with at least three baffles 7 in each layer, and each layer of baffles 7 is arranged in a ring-shaped interval around the rotating shaft 5; at the same time, the multi-layer baffles 7 are staggered in axial position to ensure that they do not block each other, forming a three-dimensional and unobstructed distribution.

[0028] In terms of function, the core of this layout is to maximize the contact area between the baffle 7 and the gas through a "multi-layer + ring distribution + unobstructed" structural design. When the dual-axis fan 4 drives the rotating shaft 5 and the baffle 7 to rotate synchronously, the outward-flowing gas needs to pass through the gaps between the ring baffles 7 of each layer. The flow path is fully dispersed and extended, avoiding the situation where the gas locally accumulates or directly "bypasses" the baffle 7, thereby ensuring that the gas can form full contact with each layer and each baffle 7.

[0029] To further enhance the adhesion of water vapor on the baffle 7, the air guide pipe 2 is connected to the spray component inside the body 1 via the connecting pipe 8. The top of the support rod 3 is provided with a cylindrical protrusion 9 extending into the bottom of the rotating shaft 5. The baffle 7, rotating shaft 5, protrusion 9, and support rod 3 are all internally connected to the connecting pipe 8, and the bottom of the baffle 7 is also provided with a drain hole 10 connected to the guide channel. The connection forms a complete water path from the spray component, through the connecting pipe 8 and the guide channel to the drain hole 10. Some of the water in the spray component will flow along this path and be discharged downward through the drain hole 10. During the flow, the baffle 7 is cooled down. The surface temperature of the baffle 7 after cooling is even lower, which makes it easier for water vapor in the airflow to condense and adhere, thereby enhancing the adhesion of water vapor on the baffle 7.

[0030] The air duct 2 has a water-guiding cavity 11 inside its wall, which is connected to the connecting pipe 8. The outer wall of the air duct 2 has a drain pipe 12 connected to the water-guiding cavity 11, and the drain pipe 12 is located above the water-guiding cavity 11. This connection forms a complete water flow path—part of the water from the spray component flows into the water-guiding cavity 11 through the connecting pipe 8, directly contacting the wall of the air duct 2 during its flow. Utilizing the heat exchange characteristics of water, it absorbs heat from the wall, effectively cooling the wall. The water then flows under pressure to the drain pipe 12 above the water-guiding cavity 11 and is discharged. Its function and effect are as follows: a significant temperature difference is formed between the cooled wall and the humid gas flowing inside the air duct 2. Through heat exchange, water vapor in the gas condenses more easily on the low-temperature wall surface. Simultaneously, the low-temperature environment enhances the adsorption capacity of the baffle 7 for water vapor. This dual effect further improves the water vapor separation efficiency. The flow of water within the water-guiding cavity 11 also continuously removes heat, ensuring the stability of the cooling effect.

[0031] Specifically, a guide groove 15 is provided at the bottom of the rotating shaft 5, and the protrusion 9 at the top of the support rod 3 is inserted into the guide groove 15 to form a fit; a water flow hole 17 is provided through the support rod 3 from the top of the protrusion 9 downwards, and the water flow hole 17 is connected to the water flow cavity 11 of the air guide pipe 2; at the same time, a cavity 16 is provided inside the baffle 7, which is connected to the guide groove 15, and the cavity 16 is connected to the drain hole 10 at the bottom of the baffle 7. Through the above connection method, the guide groove 15, the water flow hole 17 and the cavity 16 together form a complete guide channel. Its function is to construct a precise water flow path: part of the water in the water flow cavity 11 enters the guide groove 15 through the water flow hole 17, then flows into the cavity 16 inside the baffle 7 through the guide groove 15, and finally is discharged through the drain hole 10; when the water flows through the cavity 16, it directly exchanges heat with the baffle 7 to achieve cooling of the baffle 7.

[0032] The baffle 7 has a scraper 13 at its end that fits against the wall of the air guide pipe 2. The two are fixedly connected (e.g., welded or integrally formed) to ensure that the scraper 13 remains in close contact with the pipe wall as it rotates synchronously with the baffle 7. Its function is as follows: when the baffle 7 drives the scraper 13 to rotate with the shaft 5, the scraper 13 scrapes the condensed water vapor and attached fine water droplets on the inner wall of the air guide pipe 2, pushing and gathering the dispersed water vapor into larger droplets. These droplets flow rapidly down the pipe wall under gravity, preventing water vapor from evaporating again and mixing into the gas. This design enhances the collection efficiency of condensate on the pipe wall through mechanical scraping, synergizing with the water vapor adsorption, cooling, and condensation-promoting functions of the baffle 7 to further improve the overall water vapor separation effect and reduce the amount of water carried in the gas.

[0033] In summary, when the evaporative condenser with a high-efficiency water remover is in use, the equipment body 1 and the dual-axis fan 4 are started simultaneously: the spray components then start working, and the spray water is transported to the spray assembly inside the body 1 by the circulating pump to spray and cool the condenser coil. At the same time, some of the spray water enters the water guide chamber 11 of the air guide pipe 2 and the water flow hole 17 of the support rod 3 through the connecting pipe 8; after the dual-axis fan 4 starts, it begins to rotate, preparing for subsequent airflow drive and component transmission.

[0034] When the water in the water guiding cavity 11 flows through the pipe wall, it cools the pipe wall of the air guiding pipe 2, and then is discharged through the drain pipe 12 on the outer wall of the air guiding pipe 2; the water entering the water flow hole 17 flows into the internal cavity 16 of the baffle 7 through the guide groove 15, and is then discharged through the drain hole 10 at the bottom of the baffle 7. During this process, the baffle 7 is cooled.

[0035] When the dual-axis fan 4 rotates, the humid gas inside the drive body 1 flows upward along the air guide pipe 2. At the same time, the rotating shaft 5 and the multi-layer baffle 7 rotate synchronously through the locking structure. The scraper 13 at the end of the baffle 7 rotates with the baffle 7 and scrapes against the wall of the air guide pipe 2.

[0036] When the humid gas flows in the air guide pipe 2, it comes into contact with the low-temperature baffle 7 and the pipe wall. The water vapor condenses and adheres due to heat exchange. The rotation of the baffle 7 creates relative motion with the airflow, which further promotes the water vapor to collide with the baffle 7 and be adsorbed and gathered. The scraper 13 pushes the water vapor condensed on the pipe wall to form water droplets. All the gathered water droplets flow down the inner wall of the air guide pipe 2 under the action of gravity, realizing water vapor separation.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An evaporative condenser with high efficiency water trap device comprising a body (1) characterized in that: The top of the body (1) is provided with an air guide pipe (2), the bottom of which extends into the body (1). Inside the air guide pipe (2) are a dual-axis fan (4) and a support rod (3). The two ends of the support rod (3) are connected to the inner wall of the air guide pipe (2). The dual-axis fan (4) is located above the support rod (3), and a rotating shaft (5) is provided between the dual-axis fan (4) and the support rod (3). The rotating end at the bottom of the dual-axis fan (4) is provided with a locking block (6), and the top of the rotating shaft (5) is provided with a fitting block (6). The card slot (14) is inserted into the card slot (14) to limit the rotation direction of the rotating shaft (5); the side of the rotating shaft (5) is vertically connected to a baffle (7), and the baffle (7) is parallel to the opening of the air guide pipe (2); when the dual-axis fan (4) rotates, it can drive the humid gas inside the machine body (1) to flow out of the air guide pipe (2), and at the same time drive the rotating shaft (5) and the baffle (7) to rotate synchronously. The water vapor in the airflow hits the rotating baffle (7) and is absorbed and gathered into water flow, which flows down along the inner wall of the air guide pipe (2).

2. The evaporative condenser of claim 1, wherein: A connecting pipe (8) connects the air guide pipe (2) to the spray component inside the body (1); a cylindrical protrusion (9) is provided on the top of the support rod (3), the protrusion (9) extends into the bottom of the rotating shaft (5) and cooperates with the rotating shaft (5); the baffle (7), the rotating shaft (5), the protrusion (9) and the support rod (3) are provided with a flow channel, which is connected to the connecting pipe (8); a drain hole (10) is provided at the bottom of the baffle (7), which is connected to the flow channel; some water in the spray component is discharged through the connecting pipe (8) and the flow channel through the drain hole (10) to cool the baffle (7).

3. The evaporative condenser of claim 2, wherein: The air guide pipe (2) has a water guide cavity (11) inside its pipe wall, and the water guide cavity (11) is connected to the connecting pipe (8); the outer wall of the air guide pipe (2) is provided with a drain pipe (12), and the drain pipe (12) is connected to the water guide cavity (11) and located above the water guide cavity (11); the water entering the water guide cavity (11) cools the pipe wall of the air guide pipe (2) and exchanges heat with the surrounding gas, and then is discharged through the drain pipe (12).

4. The evaporative condenser according to claim 2, characterized in that: The baffle (7) is provided in multiple layers and is evenly distributed along the axis of the rotating shaft (5); each layer is provided with at least three baffles (7), and the baffles (7) are arranged in a ring around the rotating shaft (5); the multiple baffles (7) are staggered in axial position to achieve mutual non-blocking, and when the baffle (7) rotates, the gas can be fully contacted with the baffle (7).

5. The evaporative condenser according to claim 4, characterized in that: The end of the baffle (7) is provided with a scraper (13), which is in contact with the wall of the air guide pipe (2). When the baffle (7) rotates, the scraper (13) rotates synchronously with it to push the water vapor on the pipe wall to gather into water droplets.

6. The evaporative condenser according to claim 3, characterized in that: The bottom of the rotating shaft (5) is provided with a guide groove (15), and the protrusion (9) is inserted along the guide groove (15) and cooperates with the rotating shaft (5); the top of the protrusion (9) penetrates downward through the support rod (3) and is provided with a water flow hole (17), which is connected to the water guide cavity (11); the baffle (7) is provided with a cavity (16), one end of which is connected to the guide groove (15) and the other end is connected to the drain hole (10); the guide groove (15), the water flow hole (17) and the cavity (16) together constitute the guide channel.

7. The evaporative condenser according to any one of claims 1 to 6, characterized in that: The locking block (6) is cross-shaped, and the shape of the locking slot (14) is adapted to the locking block (6).

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