A water replenishment circulating water side-filtration system

Abstract

This application discloses a water replenishment-type circulating water side-stream filtration system for industrial circulating water treatment. The system includes a water replenishment system and a circulating water side-stream filtration system. The circulating water side-stream filtration system includes a main circulating water inlet pipe, and the water replenishment system includes a seamless main steel pipe, a manual valve, and multiple seamless sub-steel pipes. The first end of the seamless main steel pipe is connected to the main circulating water inlet pipe, and the second end is connected to multiple seamless sub-steel pipes. Each sub-steel pipe is equipped with a fire hose reel for connection to the water replenishment interface of a water truck. The manual valve is installed on the seamless main steel pipe. Therefore, water is supplied to the water truck from the circulating water side-stream filtration system via the water replenishment system, eliminating the need for a submersible pump to draw water from the circulating water tank. This simultaneously provides filtered water and replenishes water for the water truck, improving water resource utilization.

Description

Technical Field

[0001] This application relates to the field of industrial circulating water treatment, and more specifically, to a water replenishment circulating water side-filtration system. Background Technology

[0002] In power plant circulating cooling water systems, dust, debris, and other suspended solids accumulate in the circulating water over long periods. Without treatment, this can easily lead to scale, rust, and microbial sludge, causing pipe blockage and reducing heat exchange efficiency. Existing circulating water side-stream filtration systems reduce turbidity by introducing a portion of the circulating water into a side-stream filtration device before returning the clean water to the circulating water tank. This is a crucial step in ensuring the stable operation of the circulating water system.

[0003] However, existing side-filtration systems are limited in function, only capable of filtering circulating water. Water replenishment by sprinkler trucks within the plant area relies on submersible pumps drawing water from the circulating water pool. This process requires separately starting the submersible pump and connecting the pipeline, which is time-consuming and labor-intensive, especially under high-frequency water replenishment demands, resulting in high labor costs. Furthermore, the clean water filtered by the side-filtration system is not fully utilized and cannot be integrated with other water needs within the plant area.

[0004] Therefore, how to design a water replenishment circulating water side-filtration system that can take into account both filtered water and water replenishment by sprinkler trucks, and improve water resource utilization, is an issue that needs attention. Utility Model Content

[0005] In view of the above problems, this application provides a water replenishment circulating water side-filtration system to take into account both filtered water and water replenishment by sprinkler trucks, thereby improving water resource utilization.

[0006] To achieve the above objectives, the following specific solutions are proposed:

[0007] A water replenishment type circulating water side-filtration system includes a water replenishment system and a circulating water side-filtration system. The circulating water side-filtration system includes a circulating water side-filtration inlet main pipe, and the water replenishment system includes a seamless main steel pipe, a manual valve, and multiple seamless sub-steel pipes.

[0008] The first end of the seamless main steel pipe is connected to the main inlet pipe of the circulating water filter, and the end of the seamless main steel pipe is connected to multiple seamless sub-steel pipes;

[0009] Each of the seamless sub-steel pipes is equipped with a fire hose reel for connection to the water supply interface of a sprinkler truck;

[0010] The manual valve is installed on the seamless main steel pipe.

[0011] Optionally, the circulating water bypass filtration system may also include several circulating water bypass filtration outlet pipes;

[0012] Each of the aforementioned circulating water bypass pipes is used to draw water from the water source.

[0013] Optionally, the seamless main steel pipe has an outer diameter of 108 mm and a wall thickness of 4 mm.

[0014] Optionally, the seamless sub-steel pipe has an outer diameter of 72 mm and a wall thickness of 6 mm.

[0015] Optionally, the specifications of the fire hydrant correspond to a pipe with a nominal diameter of 65mm.

[0016] Optionally, the manual valve is a stainless steel gate valve.

[0017] Using the above technical solution, the water replenishment circulating water side-stream filtration system provided in this application includes a water replenishment system and a circulating water side-stream filtration system. The circulating water side-stream filtration system includes a circulating water side-stream filtration inlet main pipe, and the water replenishment system includes a seamless main steel pipe, a manual valve, and multiple seamless sub-steel pipes. The first end of the seamless main steel pipe is connected to the circulating water side-stream filtration inlet main pipe, and the second end of the seamless main steel pipe is connected to multiple seamless sub-steel pipes. Each seamless sub-steel pipe is equipped with a fire hydrant for connection to the water replenishment interface of the sprinkler truck. The manual valve is installed on the seamless main steel pipe. Therefore, water is supplied to the sprinkler truck from the circulating water side-stream filtration system through the water replenishment system, eliminating the need to rely on a submersible pump to draw water from the circulating water pool, while simultaneously providing filtered water and replenishing water for the sprinkler truck, thus improving water resource utilization. Attached Figure Description

[0018] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0019] Figure 1 This is a schematic diagram of a water replenishment circulating water side-filtration system provided in an embodiment of this application. Detailed Implementation

[0020] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0021] Figure 1 The system architecture of a water replenishment circulating water side-filtration system provided in the embodiments of this application is as follows: Figure 1 As shown, the system architecture may include a water replenishment system and a circulating water side-filtration system.

[0022] The circulating water side-filter system may include a circulating water side-filter inlet main pipe, and the water replenishment system may include a seamless main steel pipe, a manual valve, and multiple seamless sub-steel pipes.

[0023] Specifically, the first end of the seamless main steel pipe is connected to the main inlet pipe of the circulating water filter, and the second end of the seamless main steel pipe is connected to multiple seamless sub-steel pipes. The outer diameter of the seamless main steel pipe is 108mm, and the wall thickness is 4mm. The outer diameter of the seamless sub-steel pipes is 72mm, and the wall thickness is 6mm.

[0024] Understandably, the seamless main steel pipe connects to the main inlet pipe of the side filtration system, allowing for the direct introduction of filtered, clean circulating water for replenishment without the need for additional filtration devices. Compared to traditional submersible pumps that draw water from the circulating water tank (requiring indirect purification through the side filtration system), this design shortens the water source path, ensuring cleaner water for the sprinkler truck and preventing suspended solids from clogging the sprinkler truck nozzles or pipes.

[0025] By connecting the seamless main steel pipe to the main inlet pipe of the side filter, there is no need to start the submersible pump. The water pressure of the side filter system itself drives the water flow and the water is replenished directly through the pipeline. This reduces the equipment start-up and shutdown steps, shortens the water replenishment time by more than 50%, and improves the efficiency of water spraying operations in the plant area.

[0026] Utilizing seamless main steel pipes (Ф108*4mm) and seamless sub-steel pipes (Ф72*6mm), the pipeline boasts high strength and excellent sealing, capable of withstanding the 0.3-0.5MPa operating pressure of the bypass filtration system. This avoids the leakage risks associated with traditional welded pipelines, ensuring long-term operational stability. No major modifications to the existing bypass filtration system are required; functional expansion is achieved simply by adding connecting pipes and valves.

[0027] Furthermore, the multi-pipeline design provides redundancy, ensuring that if one pipe or faucet fails, the others can continue operating normally, preventing the entire water supply function from being paralyzed due to a single point of failure and improving system reliability. In addition, in emergencies such as sudden water outages in the plant area, the water supply system can also serve as a temporary water supply channel, continuously providing clean water to meet emergency rescue or equipment cooling needs, thus enhancing the plant's emergency response capabilities.

[0028] Each seamless steel pipe is equipped with a fire hydrant for connection to the water supply interface of the sprinkler truck. The fire hydrant is designed for pipes with a nominal diameter of 65mm. The hydrant features an internal rubber sealing ring combined with a metal valve seat, providing excellent sealing performance with a leakage rate of <0.1L / min under 0.5MPa water pressure. This avoids the dripping problems caused by directly binding traditional hoses, resulting in annual water savings of over 200 tons.

[0029] Understandably, the sub-steel pipe ends with DN65 fire hose taps, which are compatible with national standard fire hose interfaces. This not only makes it suitable for factory sprinkler trucks, but can also be extended to greening irrigation trucks, road washing trucks, and other equipment, improving the system's versatility.

[0030] The fire hydrant can withstand water pressure of 0.8-1.6MPa (higher than the typical working pressure of 0.3-0.5MPa for the side-filtration system), ensuring a stable water flow even when the side-filtration system is operating at full load. Test data shows that when all three hydrants are turned on simultaneously, the flow rate of a single hydrant can reach 20m³ / h, and a 10-ton water tank can be refilled within 30 minutes.

[0031] The manual valve is installed on the seamless main steel pipe. This manual valve can be a stainless steel gate valve. Since circulating water often contains corrosive substances such as chloride ions, dissolved oxygen, and microorganisms, the dense chromium oxide film formed on the surface of stainless steel effectively resists corrosion, extending its service life by 3-5 times compared to cast iron gate valves. In actual measurements at coastal power plants, stainless steel gate valves showed no corrosion perforation after 5 years of continuous use in circulating water with high salinity, while traditional cast iron valves only lasted 1-2 years. Acid mist, alkaline mist, or humid air in the plant environment can easily cause external corrosion to the valves. Stainless steel has excellent atmospheric corrosion resistance, eliminating the need for frequent application of anti-rust paint and reducing maintenance workload.

[0032] Understandably, the manual valve can directly cut off or open the water supply line, facilitating rapid response in the following scenarios: When the water truck finishes replenishing water, closing the valve stops the water supply, preventing water waste or accidental spraying; when the bypass filtration system is under maintenance or troubleshooting, closing the water supply line valve prevents backflow of circulating water from affecting the main system's operation; in the event of extreme weather (such as heavy rain) that necessitates suspending water spraying operations in the factory area, the valve can isolate the water supply function to prevent misoperation. During normal filtration by the bypass filtration system, closing the manual valve completely isolates the water supply line from the main filtration circuit, preventing water flow disturbances during replenishment from affecting the circulating water pressure and ensuring that the cooling needs of production equipment are not disturbed.

[0033] Manual valves can be designed with handles or handwheels, eliminating the need for electricity or control systems and preventing control failures caused by malfunctions in automated components (such as burnt-out solenoid valve coils). For non-professional operators (such as sprinkler truck drivers), the operation method can be quickly mastered, reducing the probability of misoperation. In emergencies such as power outages or control system failures in the factory area, manual valves can still be manually operated to start and stop the water replenishment function, ensuring the continuity of emergency sprinkler operations (such as fire fighting and dust suppression) and improving system robustness.

[0034] When leaks, blockages, or faucets malfunction in the water supply line, closing the corresponding manual valve isolates the affected area without needing to drain the entire bypass filtration system or stop the main circulating water, significantly reducing maintenance time. For example, when replacing a DN65 fire faucet at a power plant, only the manual valve of that branch needed to be closed, and the replacement could be completed within 15 minutes, improving efficiency by 80% compared to traditional full system shutdown maintenance.

[0035] The manual valve is designed to serve as a pre-control unit for future upgrade interfaces (such as adding flow meters or electric valves). For example, if automatic monitoring of the water supply flow is required later, an electromagnetic flow meter can be connected in series after the manual valve, while the manual valve can be used to cut off the water flow during installation and commissioning to avoid affecting the operation of the main system.

[0036] The water replenishment circulating water bypass filtration system provided in this embodiment includes a water replenishment system and a circulating water bypass filtration system. The circulating water bypass filtration system includes a circulating water bypass filtration inlet main pipe, and the water replenishment system includes a seamless main steel pipe, a manual valve, and multiple seamless sub-steel pipes. The first end of the seamless main steel pipe is connected to the circulating water bypass filtration inlet main pipe, and the second end of the seamless main steel pipe is connected to multiple seamless sub-steel pipes. Each seamless sub-steel pipe is equipped with a fire hydrant for connection to the water replenishment interface of the sprinkler truck. The manual valve is installed on the seamless main steel pipe. Therefore, water is supplied to the sprinkler truck from the circulating water bypass filtration system through the water replenishment system, eliminating the need for a submersible pump to draw water from the circulating water pool, while simultaneously providing filtered water and replenishing water for the sprinkler truck, thus improving water resource utilization.

[0037] In some embodiments of this application, the circulating water side-filtration system mentioned in the above embodiments is further described. The circulating water side-filtration system may also include several circulating water side-filtration outlet pipes, each of which is used to draw water from the water source.

[0038] Understandably, several side-filter outlet pipes simultaneously draw water from the water source (such as the circulating water return main pipe) to increase the pumping volume per unit time, ensuring that the treatment flow rate of the side-filter system meets the purification requirements of the circulating water. For example, when the flow rate of a single pipe is 50 m³ / h, three pipes operating in parallel can increase the total flow rate to 150 m³ / h, meeting the filtration requirements of high-load circulating water systems. Multiple outlet pipes can be distributed at different locations of the water source (such as different sections of the circulating water return main pipe) to avoid local water flow disturbances or negative pressure caused by single-point pumping, making the pumping process more stable and reducing the impact on the water flow balance of the main circulation system.

[0039] Multiple circulating water bypass filter outlet pipes serve as backups for each other. If one bypass filter outlet pipe stops working due to blockage, leakage, or valve malfunction, the other pipes can still maintain system operation, preventing the bypass filtration system from being paralyzed due to a single pipe failure. For example, a power plant's bypass filtration system is equipped with four circulating water bypass filter outlet pipes. If one fails, the remaining three can still guarantee 75% of the rated treatment flow, significantly improving system reliability. Furthermore, a single outlet pipe can be shut down for maintenance or cleaning without affecting the normal operation of other pipes, reducing maintenance interference with the main system and shortening downtime.

[0040] Furthermore, multiple circulating water bypass filtration outlet pipes can be connected to different bypass filters, such as quartz sand filters and fiber ball filters, to achieve balanced water flow distribution. This avoids uneven filter load caused by excessive flow in a single pipe, improving filtration efficiency and water quality stability. Each outlet pipe can be independently equipped with a valve and flow meter, allowing for flexible adjustment of the pumping volume in each pipe according to water quality changes, adapting to different filtration process requirements. For example, when the turbidity of the circulating water increases, the flow rate in a certain pipe can be increased to the corresponding high-precision filter, enhancing the filtration effect.

[0041] Furthermore, multiple circulating water bypass filter outlet pipes can be arranged close to the water source, shortening the water delivery distance to the bypass filter device and reducing friction loss along the pipeline (e.g., reducing head loss by 20%~30%), thereby reducing pump energy consumption. Based on real-time monitoring data of circulating water quality (e.g., turbidity, suspended solids concentration), some outlet pipes can be dynamically started and stopped. For example, only 1~2 pipes can be opened when the water quality is good, and all pipes can be started when the water quality deteriorates, achieving energy-saving operation.

[0042] Finally, it should be noted that in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0043] The various embodiments in this specification are described in a progressive manner. Each embodiment focuses on the differences from other embodiments. The various embodiments can be combined as needed, and the same or similar parts can be referred to each other.

[0044] The above description of the disclosed embodiments enables those skilled in the art to make or use this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A water replenishment-type circulating water side-stream filtration system, characterized in that, It includes a water replenishment system and a circulating water side-filtration system. The circulating water side-filtration system includes a circulating water side-filtration inlet main pipe, and the water replenishment system includes a seamless main steel pipe, a manual valve, and multiple seamless sub-steel pipes. The first end of the seamless main steel pipe is connected to the main inlet pipe of the circulating water filter, and the end of the seamless main steel pipe is connected to multiple seamless sub-steel pipes; Each of the seamless sub-steel pipes is equipped with a fire hose reel for connection to the water supply interface of a sprinkler truck; The manual valve is installed on the seamless main steel pipe.

2. The water replenishment circulating water side-stream filtration system according to claim 1, characterized in that, The circulating water side-filtration system also includes several circulating water side-filtration outlet pipes; Each of the aforementioned circulating water bypass pipes is used to draw water from the water source.

3. The water replenishment type circulating water side-stream filtration system according to claim 1, characterized in that, The seamless main steel pipe has an outer diameter of 108 mm and a wall thickness of 4 mm.

4. The water replenishment circulating water side-stream filtration system according to claim 1, characterized in that, The seamless steel pipe has an outer diameter of 72mm and a wall thickness of 6mm.

5. The water replenishment circulating water side-stream filtration system according to claim 1, characterized in that, The specifications of the fire hydrant correspond to a pipe with a nominal diameter of 65mm.

6. The water replenishment circulating water side-stream filtration system according to any one of claims 1-5, characterized in that, The manual valve is a stainless steel gate valve.

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