Circulating water sprayer with sewer pipe dredging function for cooling tower

Abstract

The utility model discloses a circulating water spray head for a cooling tower with a sewer pipe dredging function, which comprises a tubular connector, an annular upper water distribution disc, an annular lower water distribution disc, a conical water distribution disc, a water distribution bottom disc and a dredging rod which are coaxial with one another and are sequentially arranged from top to bottom, the connector, the upper water distribution disc, the lower water distribution disc and the water distribution bottom disc are fixedly connected through a connecting plate, external threads are arranged on the outer wall of the connector, the dredging rod penetrates through a center hole of the water distribution bottom disc in a sliding mode, and the upper end of the dredging rod is connected with the conical water distribution disc; the bottom diameter of the conical water distribution disc is larger than the diameter of the center hole of the water distribution base disc and smaller than the diameter of the center holes of the connector, the upper water distribution disc and the lower water distribution disc. The conical water distribution disc, the water distribution chassis and the dredging rod form a dredging device, when the circulating water sewer pipe is blocked by sludge, dredging of the sewer pipe can be completed only by pushing the dredging rod upwards, the dredging efficiency of the circulating water sewer pipe is greatly improved, and the labor intensity of post personnel is reduced.

Description

Technical Field

[0001] The utility model relates to a circulating water nozzle for a cooling tower with a downpipe dredging function, belonging to the technical field of cooling. Background Art

[0002] The circulating water cooling tower performs heat exchange through the circulation of water, dissipates the heat in the system into the air, and achieves the purpose of cooling. The cooling effect of the cooling tower is closely related to the water quality of the circulating water nozzle. Since the air entering the cooling tower contains impurities such as dust, after the cooling tower has been running for a period of time, the circulating water pipe connected to the circulating water nozzle at the end of the circulating water pipeline in the tower is easily blocked by silt, making it impossible for the circulating water nozzle to spray water normally, resulting in the superposition of water spraying, water distribution and uneven atomization of the other normally used circulating water nozzles, and the cooling effect is deteriorated.

[0003] At present, the method for dealing with the blockage failure of the circulating water sewer pipe is to remove the nozzle, and have the staff on duty use unclogging tools to unclog it. After the unclogging is completed, the nozzle is reinstalled on the circulating water sewer pipe. This method is not only inefficient and labor-intensive for the staff on duty, but also easy to cause damage to the nozzle during the disassembly and assembly process. Utility Model Content

[0004] The utility model aims to solve the drawbacks of the prior art and provide a circulating water nozzle for a cooling tower with a downpipe dredging function, so as to improve the dredging efficiency of the circulating water downpipe and reduce the labor intensity of the personnel on duty.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A circulating water nozzle for a cooling tower with a downpipe dredging function comprises a tubular connector, an annular upper water distribution tray, an annular lower water distribution tray, a conical water distribution tray, a water distribution bottom tray and a dredging rod which are coaxial with each other and arranged in sequence from top to bottom. The connector, the upper water distribution tray, the lower water distribution tray and the water distribution bottom tray are fixedly connected by a connecting plate. The outer wall of the connector is provided with an external thread matching the internal thread of the lower end of the circulating water downpipe inside the cooling tower. The dredging rod slides through the center hole of the water distribution bottom tray and the upper end of the dredging rod is connected to the conical water distribution tray. The bottom diameter of the conical water distribution tray is larger than the center hole diameter of the water distribution bottom tray and smaller than the center hole diameter of the connector, the upper water distribution tray and the lower water distribution tray.

[0007] The circulating water nozzle for cooling tower with downpipe dredging function is provided with a plurality of water dividing teeth evenly distributed around the circumference of the upper water distribution tray, and the plurality of water dividing teeth evenly distributed around the circumference of the lower water distribution tray are also provided.

[0008] The circulating water nozzle for a cooling tower with the function of clearing the downpipe is characterized in that the upper surfaces of the upper water distribution tray and the lower water distribution tray are arc surfaces with a protrusion in the middle.

[0009] The circulating water nozzle for cooling tower with downpipe dredging function is provided with two connecting plates, which are symmetrically fixed on both sides of the connector, the upper water distribution tray, the lower water distribution tray and the conical water distribution tray.

[0010] The circulating water nozzle for a cooling tower with the function of clearing the downpipe is characterized in that the diameters of the central holes of the connector, the upper water distribution tray and the lower water distribution tray decrease in sequence.

[0011] The above-mentioned circulating water nozzle for cooling tower with downpipe dredging function, the length of the dredging rod is greater than the sum of the lengths of the connector, the connecting plate and the circulating water downpipe.

[0012] The circulating water nozzle for a cooling tower with the function of clearing the downpipe is provided with reinforcing ribs in the middle part of the connecting plate.

[0013] The above-mentioned circulating water nozzle for a cooling tower with a downpipe unclogging function, the outer diameter of the upper water distribution pan is larger than the outer diameter of the connector, the outer diameter of the lower water distribution pan is smaller than the outer diameter of the upper water distribution pan, the outer diameter of the water distribution bottom pan is smaller than the outer diameter of the lower water distribution pan, the bottom diameter of the conical water distribution pan is smaller than the outer diameter of the water distribution bottom pan, and the outer diameter of the water distribution bottom pan is larger than the diameter of the center hole of the lower water distribution pan.

[0014] The circulating water nozzle for cooling tower with downpipe dredging function, the connector, water distribution bottom plate, inner surfaces of the center holes of the upper and lower water distribution plates, and the surface of the dredging rod are all smooth surfaces.

[0015] The circulating water nozzle for cooling tower with sewer pipe dredging function, the connector, upper water distribution tray, lower water distribution tray, conical water distribution tray, water distribution bottom tray, dredging rod and connecting plate are made of ABS.

[0016] The conical water distribution tray, the water distribution bottom plate and the dredging rod of the utility model constitute a dredging device. When the circulating water sewer pipe is blocked by silt, the staff on duty does not need to dismantle the circulating water nozzle, but only needs to push the dredging rod upwards to complete the dredging of the sewer pipe, which greatly improves the dredging efficiency of the circulating water sewer pipe and reduces the labor intensity of the staff on duty. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0018] Figure 1 It is a structural schematic diagram of the utility model.

[0019] The numbers in the figure are as follows: 1. Connector, 2. Reinforcement rib, 3. Connecting plate, 4. Upper water distribution tray, 5. Lower water distribution tray, 6. Conical water distribution tray, 7. Water distribution bottom tray, 8. Dredging rod. DETAILED DESCRIPTION

[0020] The utility model aims at the deficiencies existing in the prior art and provides a circulating water nozzle for a cooling tower with a downpipe dredging function. When the downpipe connected to the circulating water nozzle is blocked, maintenance personnel can dredge the downpipe in a very short time without disassembling the nozzle.

[0021] See also Figure 1The utility model mainly includes two vertically placed long strip-shaped connecting plates 3 and a connector 1, an upper water distribution tray 4, a lower water distribution tray 5 and a dredging device arranged between the two connecting plates 3 and arranged in sequence from top to bottom. The connector 1 is a vertical tubular body, and its outer wall is provided with an external thread matching the internal thread of the lower end of the circulating water pipe inside the circulating water cooling tower, which is used to connect with the circulating water pipe. The water from the circulating water pipe enters the inside of the nozzle through the center hole of the connector 1. The upper ends of the two connecting plates 3 are respectively connected to the two sides of the lower end of the connector 1. In order to ensure the mechanical strength of the connecting plate 3, a reinforcing rib 2 is added to the middle part of the connecting plate 3. The upper water distribution tray 4 and the lower water distribution tray 5 are coaxial with the connector 1 and the two sides of the two are respectively connected to the two connecting plates 3. The upper water distribution tray 4 and the lower water distribution tray 5 are all provided with water dividing teeth around and the upper surface is a circular arc surface with a raised center. The middle of the upper water distribution tray 4 and the lower water distribution tray 5 are provided with a center hole. The outer diameter of the upper water distribution tray 4 is larger than the outer diameter of the connector 1, and the diameter of the center hole in the middle of the upper water distribution tray 4 is smaller than the diameter of the center hole in the connector 1. The outer diameter of the lower water distribution tray 5 is smaller than the outer diameter of the upper water distribution tray 4, and the diameter of the center hole in the middle of the lower water distribution tray 5 is smaller than the diameter of the center hole in the middle of the upper water distribution tray 4. The dredging device includes a water distribution bottom plate 7 coaxial with the connector 1, a dredging rod 8 and a conical water distribution tray 6. The two sides of the water distribution bottom plate 7 are respectively connected to the lower ends of the two connecting plates 3. A center hole matching the dredging rod 8 is provided in the middle of the water distribution bottom plate 7. The outer diameter of the water distribution bottom plate 7 is smaller than the outer diameter of the lower water distribution bottom plate 5. The diameter of the dredging rod 8 is smaller than the diameter of the center hole of the water distribution bottom plate 7. The dredging rod 8 slides through the center hole of the water distribution bottom plate 7. The length of the dredging rod 8 is greater than the sum of the lengths of the connector 1, the connecting plate 3 and the circulating water underwater pipe. The conical water distribution tray 6 is fixed on the top of the dredging rod 8, and the dredging rod 8 is integrally connected with the conical water distribution tray 6. The bottom diameter of the conical water distribution tray 6 is larger than the diameter of the center hole of the water distribution bottom plate 7 and smaller than the outer diameter of the water distribution bottom plate 7. The outer diameter of the water distribution bottom plate 7 is larger than the diameter of the center hole in the middle of the lower water distribution tray 5. The bottom diameter of the conical water distribution tray 6 is smaller than the diameter of the center hole in the middle of the lower water distribution tray 5. The conical water distribution tray 6 can be lifted to the inside of the circulating water pipe by the dredging rod 8 to ensure the dredging effect. When the circulating water nozzle works normally, the conical water distribution tray 6 is tightly attached to the water distribution bottom plate 7 under the action of gravity. Most of the dredging rod 8 is at the bottom of the water distribution bottom plate 7. The upper water distribution tray 4, the lower water distribution tray 5, and the dredging device are all connected through the connecting plate 3. The connector 1, the water distribution bottom plate 7, the inner surface of the center hole of the upper water distribution tray 4 and the lower water distribution tray 5, and the surface of the dredging rod 8 are all smooth surfaces to ensure that the water flow resistance generated is minimal. After the upper water distribution tray 4, the lower water distribution tray 5, and the dredging device distribute water evenly, all the incoming water is evenly divided into fine water droplets, which improves the heat exchange effect of the cooling tower. The water dividing teeth around the upper water distribution tray 4 and the lower water distribution tray 5 can evenly divide the water flow into multiple parts, improve the longitudinal diffusion, and make the water flow uniform, thereby improving the diffusion effect. The conical water distribution tray 6 is a conical shape with the center convex upward, which reduces the resistance when dredging upward.The various components of the circulating water sprinkler are manufactured by an ABS one-piece molding manufacturing method, the manufacturing process is simple and the sprinkler has high strength, and is suitable for mass production.

[0022] The use process of circulating water nozzle:

[0023] After the circulating water nozzle is installed on the lower end of the circulating water sewer pipe through the external thread of the connector 1, the circulating water enters from the center hole of the connector 1 after being pressurized. When the water reaches the upper surface of the upper water distribution tray 4, since the diameter of the center hole of the upper water distribution tray 4 is smaller than the diameter of the center hole of the connector 1, the water splashes due to the obstruction of the arc surface of the upper water distribution tray 4. Part of the water flows along the arc surface to the edge of the upper water distribution tray 4 and is divided by the water dividing teeth into uniform thin water flows and falls onto the cooling filler below. The water flow increases the contact area with the air and the diffusion degree in the longitudinal direction after splashing and diversion by the water dividing teeth. The remaining water falls directly from the center hole of the upper water distribution tray 4 to the lower water distribution tray 5. Since the diameter of the center hole of the lower water distribution tray 5 is smaller than that of the center hole of the upper water distribution tray 4, when the water reaches the arc surface of the lower water distribution tray 5, part of the water splashes due to the obstruction of the arc surface, and another part of the water flows along the arc surface to the edge of the lower water distribution tray 5 and is divided into uniform thin water flows by the water dividing teeth and falls on the cooling filler below, further increasing the contact area between water and air and the diffusion degree in the longitudinal direction. The remaining water falls directly from the center hole of the lower water distribution tray 5 to the dredging device. Due to the effect of gravity, the water on the lower water distribution tray 5 has a higher flow rate than the water on the upper water distribution tray 4, the water flow has a greater diffusion degree, and the water is evenly divided into finer parts. Since the outer diameter of the water distribution bottom plate 7 is larger than the diameter of the center hole of the lower water distribution plate 5, and the bottom diameter of the conical water distribution plate 6 is smaller than the diameter of the center hole of the lower water distribution plate 5, the last part of the water flowing through the center hole of the lower water distribution plate 5 impacts the conical water distribution plate 6 at the center of the water distribution bottom plate 7 of the dredging device. Under the impact of the water flow, the water flow splashes and falls on the cooling filler below. The flow rate of this part of water is the fastest, making the splashing area of ​​the water flow impacting the conical water distribution plate 6 larger and the water more dispersed. After the uniform water distribution of the upper water distribution plate 4, the lower water distribution plate 5, and the dredging device, all the incoming water is evenly divided into fine water droplets and evenly distributed, which improves the heat exchange effect of the cooling tower.

[0024] When the circulating water pipe is blocked by silt, there is no need to disassemble the circulating water nozzle. The staff only needs to push the dredging rod 8 upwards, and the conical water distribution tray 6 on the top of the dredging rod 8 passes through the center hole of the lower water distribution tray 5, the center hole of the upper water distribution tray 4, and the center hole of the connector 1 in turn, so as to dredge the blocked circulating water pipe. After dredging, the conical water distribution tray 6 falls back onto the water distribution bottom plate 7, and the circulating water nozzle can be used normally. Since the conical water distribution tray is conical, the resistance during dredging is reduced.

[0025] The advantages of the utility model are that it is sturdy and durable, has high strength, and is easy to install and replace. When the circulating water pipe is blocked, it can be quickly unblocked without removing the nozzle, thereby improving work efficiency and reducing the labor intensity of post personnel. The connector, upper water distribution tray, lower water distribution tray, and unblocking device are used together to make the water droplets more refined, the circulating water is sprayed more evenly, and the heat exchange effect with the air is improved.

Claims

1. A circulating water nozzle for a cooling tower with a downpipe dredging function, characterized in that: The invention comprises a tubular connector (1), an annular upper water distribution tray (4), an annular lower water distribution tray (5), a conical water distribution tray (6), a water distribution bottom tray (7) and a dredging rod (8) which are coaxial with each other and arranged in sequence from top to bottom. The connector (1), the upper water distribution tray (4), the lower water distribution tray (5) and the water distribution bottom tray (7) are fixedly connected via a connecting plate (3). The outer wall of the connector (1) is provided with an external thread matching the internal thread of the lower end of the circulating water pipe inside the cooling tower. The dredging rod (8) slides through the center hole of the water distribution bottom tray (7) and the upper end of the dredging rod (8) is connected to the conical water distribution tray (6). The bottom diameter of the conical water distribution tray (6) is larger than the center hole diameter of the water distribution bottom tray (7) and smaller than the center hole diameters of the connector (1), the upper water distribution tray (4) and the lower water distribution tray (5).

2. The circulating water nozzle for a cooling tower with a downpipe dredging function according to claim 1 is characterized in that: The upper water distribution tray (4) is provided with a plurality of water dividing teeth evenly distributed around its circumference, and the lower water distribution tray (5) is also provided with a plurality of water dividing teeth evenly distributed around its circumference.

3. A circulating water nozzle for a cooling tower with a downpipe dredging function according to claim 1 or 2, characterized in that: The upper surfaces of the upper water distribution tray (4) and the lower water distribution tray (5) are arc surfaces with a convex middle.

4. The circulating water nozzle for a cooling tower with a downpipe dredging function according to claim 3 is characterized in that: Two connecting plates (3) are provided, and the two connecting plates (3) are symmetrically fixed on both sides of the connector (1), the upper water distribution tray (4), the lower water distribution tray (5) and the conical water distribution tray (6).

5. The circulating water nozzle for cooling tower with downpipe dredging function according to claim 4 is characterized in that: The diameters of the central holes of the connector (1), the upper water distribution tray (4), and the lower water distribution tray (5) decrease in sequence.

6. A circulating water nozzle for a cooling tower with a downpipe dredging function according to claim 5, characterized in that: The length of the dredging rod (8) is greater than the sum of the lengths of the connector (1), the connecting plate (3) and the circulating water underwater pipe.

7. A circulating water nozzle for a cooling tower with a downpipe dredging function according to claim 6, characterized in that: A reinforcing rib (2) is provided in the middle portion of the connecting plate (3).

8. The circulating water nozzle for cooling tower with downpipe dredging function according to claim 7, characterized in that: The outer diameter of the upper water distribution tray (4) is greater than the outer diameter of the connector (1), the outer diameter of the lower water distribution tray (5) is smaller than the outer diameter of the upper water distribution tray (4), the outer diameter of the water distribution bottom tray (7) is smaller than the outer diameter of the lower water distribution tray (5), the bottom diameter of the conical water distribution tray (6) is smaller than the outer diameter of the water distribution bottom tray (7), and the outer diameter of the water distribution bottom tray (7) is greater than the diameter of the center hole of the lower water distribution tray (5).

9. A circulating water nozzle for a cooling tower with a downpipe dredging function according to claim 8, characterized in that: The connector (1), the water distribution bottom plate (7), the inner surfaces of the central holes of the upper water distribution plate (4) and the lower water distribution plate (5), and the surface of the dredging rod (8) are all smooth surfaces.

10. A circulating water nozzle for a cooling tower with a downpipe dredging function according to claim 9, characterized in that: The connector (1), the upper water distribution tray (4), the lower water distribution tray (5), the conical water distribution tray (6), the water distribution bottom tray (7), the dredging rod (8) and the connecting plate (3) are made of ABS.

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