A device for replacing water distribution nozzles in a cooling water tower

Abstract

This utility model belongs to the technical field of cooling water tower water distribution pipelines, and relates to a device for replacing water distribution nozzles in cooling water towers. It includes two opposing clamps, each with a hollow interior forming a channel. A semi-circular slot is horizontally oriented through the bottom of each clamp, and the two clamps encircle the water distribution branch pipe through the semi-circular slot. Connecting ears are provided on the left and right sides of each clamp, and fastening bolts are installed between the opposing connecting ears. Sealing silicone layers are provided at both ends of each clamp. A metal elbow is connected to the top of each clamp, communicating with the internal channel of the clamp. A valve is installed on the metal elbow, and a nozzle is connected to the end of the metal elbow. Filter holes are provided on the inner wall of the semi-circular slot. This utility model replaces traditional welding with mechanical bolt fixing. The clamp bolts are tightened, reducing the time required for single-point modifications, minimizing downtime losses, ensuring continuous production, and saving on welding equipment, professional personnel, and anti-corrosion treatment costs. Spare parts can be prefabricated in batches.

Description

Technical Field

[0001] This utility model belongs to the technical field of cooling water tower water distribution pipeline, specifically relating to a device for replacing water distribution nozzles in cooling water towers. Background Technology

[0002] Cooling towers are the core heat dissipation equipment in industrial circulating water systems. Currently, the water distribution pipes inside cooling towers are generally made of carbon steel, and the nozzles are usually fixed to the right-angle bends of the carbon steel water distribution branch pipes by welding. However, due to the harsh environment inside the cooling tower, which is characterized by high temperature, high humidity, and corrosive media, the carbon steel pipes and welded parts are highly susceptible to electrochemical corrosion. The corrosion rate at the weld joints is much higher than that of the pipe body. After 1-2 years of use, the weld area thins and cracks, causing the nozzle to detach completely.

[0003] Furthermore, corrosion cracks cause continuous water leakage, and the water flow accelerates the corrosion of adjacent pipes, creating a vicious cycle. Traditional repairs require cutting off the rusted bends and re-welding them. Cooling towers are confined spaces, and hot work poses multiple risks, including explosions, poisoning, and falls from heights.

[0004] While current solutions include flange connections or clamp-type sprinkler heads, shortcomings remain, such as aging and leakage of flange gaskets leading to insufficient sealing, and loose clamps causing sprinkler head misalignment and poor vibration resistance. Therefore, there is an urgent need to develop a weld-free, corrosion-resistant, and quickly replaceable sprinkler head installation device to fundamentally solve the problems of corrosion breakage and hot work maintenance. Utility Model Content

[0005] The purpose of this utility model is to provide a device for replacing water distribution nozzles in cooling water towers, which has the function of replacing water distribution nozzles in cooling water towers and solves the problems of insufficient sealing and poor vibration resistance in the prior art.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: This utility model provides a water distribution nozzle replacement device for a cooling water tower, including two opposing clamps. The clamps are hollow inside to form a channel. A semi-circular slot is provided horizontally through the bottom of the clamp. The two clamps encircle the water distribution branch pipe through the semi-circular slot. Connecting ears are provided on the left and right sides of the clamps respectively. Fastening bolts are provided between the opposite connecting ears. Sealing silicone layers are provided at the front and rear ends of the clamps. A metal bend is connected to the top of the clamp. The metal bend communicates with the channel inside the clamp. A valve is provided on the metal bend. A nozzle is connected to the end of the metal bend. Filter holes are provided on the inner wall of the semi-circular slot.

[0007] Preferably, the thickness of the sealing silicone layer is greater than the thickness of the end face of the clamp, and the sealing silicone layer is squeezed to achieve sealing by tightening the fastening bolts.

[0008] Preferably, the filter holes are multiple holes evenly distributed along the circumferential direction of the inner wall of the semi-circular slot.

[0009] Preferably, the connecting lug is a protrusion extending outward from the side wall of the clamp, and the fastening bolt passes through the corresponding connecting lugs on both sides and is locked by a nut.

[0010] Preferably, the metal bend and the top of the clamp are detachably connected.

[0011] Preferably, the nozzle is connected to the end of the metal bend via a thread.

[0012] Preferably, the retaining clip and connecting ear are made of stainless steel.

[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0014] 1. This utility model replaces traditional welding with mechanical bolt fixing, clamping bolts for fastening, reducing the time required for single-point modification, reducing downtime losses, ensuring continuous production, saving welding equipment, professional personnel and anti-corrosion treatment costs, and spare parts can be prefabricated in batches;

[0015] 2. This utility model is weld-free, corrosion-resistant, and quick-replaceable, and has the function of replacing the water distribution nozzle of the cooling water tower, which solves the problems of insufficient sealing and poor vibration resistance of the existing technology. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of a water distribution nozzle replacement device for a cooling water tower according to one embodiment;

[0018] In the above diagram, 1. Clamp, 2. Connecting ear, 3. Fastening bolt, 4. Sealing silicone layer, 5. Metal bend, 6. Valve, 7. Nozzle, 8. Filter hole. Detailed Implementation

[0019] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0020] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0021] Example 1, as Figure 1 As shown, a replacement device for a cooling tower water distribution nozzle 7 includes two opposing clamps 1. Each clamp 1 has a hollow interior forming a channel, and a semi-circular slot is horizontally oriented through its bottom. The two clamps 1 encircle the water distribution branch pipe through the semi-circular slots. The clamps 1 serve as the main load-bearing structure, mechanically fixing the carbon steel water distribution branch pipe by encircling it with the two opposing semi-circular slots. The hollow channel inside the clamps 1 guides water flow from the main pipe to the metal bend 5, eliminating the need for welding during installation, avoiding the risks of hot work, and reducing safety costs.

[0022] The clamp 1 has connecting ears 2 on both its left and right sides, and fastening bolts 3 are installed between the opposite connecting ears 2. The connecting ears 2 are protrusions extending from the side wall of the clamp 1. The two clamps 1 are mechanically locked together by through bolts and nuts. The bolts have a high mechanical tightening force to prevent the nozzle 7 from tilting. Sealing silicone layers 4 are installed at both ends of the clamp 1 to fill the gap between the clamp 1 and the pipe. A metal elbow 5 is connected to the top of the clamp 1. The metal elbow 5 communicates with the internal channel of the clamp 1 and connects the clamp 1 to the nozzle 7, forming a water flow path. A valve 6 is installed on the metal elbow 5, and the nozzle 7 is connected to the end of the metal elbow 5. The nozzle 7 atomizes and sprays water. The valve 6 controls the flow direction and interruption of water flow. During maintenance, a single nozzle 7 can be shut down without stopping the entire tower, avoiding the risk of high-pressure water splashing during disassembly. The inner wall of the semi-circular groove is provided with filter holes 8, which are evenly distributed on the inner wall of the semi-circular groove to intercept large-volume rust, scale and other impurities on the outer wall of the pipe, protect the nozzle 7 from being stuck by large particles, extend its service life, and remove the retainer 1 to discharge the slag during maintenance.

[0023] The specific design of the aforementioned key components will be discussed in detail below:

[0024] The thickness of the sealing silicone layer 4 is greater than the thickness of the end face of the clamp 1. The sealing silicone layer 4 is compressed and sealed by the fastening bolt 3. Through interference fit design, the sealing silicone layer 4 protrudes 0.5-2mm from the end face of the clamp 1. When the fastening bolt 3 is tightened, it undergoes axial compression deformation, filling the gap between the clamp 1 and the pipe, compensating for the unevenness of the carbon steel pipe surface due to rust. The elastic modulus of the silicone can absorb the thermal deformation of the pipe, avoiding leakage caused by periodic stress. The aging-resistant silicone has a long service life.

[0025] The filter holes 8 are multiple holes evenly distributed along the circumference of the inner wall of the semi-circular slot. A group of Φ3-5mm filter holes 8 are formed circumferentially on the inner wall of the semi-circular slot of the clamp 1, with an opening rate of 15%-20%, creating a full-circumferential filter grid. The connecting lugs 2 are protrusions extending outward from the side wall of the clamp 1. Fastening bolts 3 pass through the corresponding connecting lugs 2 on both sides and are locked with nuts. The connecting lugs 2 are trapezoidal reinforcing ribs; after the bolts pass through, they achieve rigid fixation under force, resisting vibration and loosening, and preventing the nozzle 7 from tilting due to water flow vibration. The metal elbow 5 is detachably connected to the top of the clamp 1. It uses quick-install clamps or flange interfaces with O-ring seals, enabling tool-free assembly and disassembly. Maintenance is quick, replacement of the metal elbow 5 is time-efficient, and the length and angle of the metal elbow 5 can be customized to accommodate different tower types.

[0026] The nozzle 7 is connected to the end of the metal bend 5 via a thread. The nozzle 7 has an external thread at its tail, while the hose end has an internal thread; the standard threaded interface is compatible with commercially available nozzle 7 models. The retaining clip 1 and connecting lug 2 are made of stainless steel, specifically 304 / 316L stainless steel, requiring no anti-corrosion coating repair throughout their entire lifespan.

[0027] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0028] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A device for replacing water distribution nozzles in a cooling water tower, comprising two opposing clamps, each clamp having a hollow interior forming a channel, and a semi-circular slot extending laterally through its bottom; the two clamps encircle a water distribution branch pipe via the semi-circular slot, characterized in that... The clamp is provided with connecting ears on the left and right sides respectively, and fastening bolts are provided between the opposite connecting ears. Sealing silicone layers are provided at the front and rear ends of the clamp. A metal bend is connected to the top of the clamp, and the metal bend is connected to the channel inside the clamp. A valve is provided on the metal bend, and a nozzle is connected to the end of the metal bend. Filter holes are provided on the inner wall of the semi-circular slot.

2. The device for replacing water distribution nozzles in a cooling water tower according to claim 1, characterized in that, The thickness of the sealing silicone layer is greater than the thickness of the end face of the clamp, and the sealing silicone layer is squeezed to achieve a seal by tightening the bolts.

3. The device for replacing water distribution nozzles in a cooling water tower according to claim 1, characterized in that, The filter holes are multiple holes that are evenly distributed along the circumference of the inner wall of the semi-circular slot.

4. A device for replacing water distribution nozzles in a cooling water tower according to claim 1, characterized in that, The connecting lug is a protrusion extending outward from the side wall of the clamp, and the fastening bolt passes through the corresponding connecting lug on both sides and is locked with a nut.

5. A device for replacing water distribution nozzles in a cooling water tower according to claim 1, characterized in that, The metal bend is detachably connected to the top of the clamp.

6. A device for replacing water distribution nozzles in a cooling water tower according to claim 1 or 5, characterized in that, The nozzle is connected to the end of the metal bend via a thread.

7. A device for replacing water distribution nozzles in a cooling water tower according to claim 1, characterized in that, The retainer and connecting ear are made of stainless steel.

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