A waste heat power generation cycle cooling water treatment system

Abstract

The utility model relates to waste heat power generation water treatment technical field, and disclose a kind of waste heat power generation circulating cooling water treatment system, electric pulse scale inhibition system is equipped with two groups and is respectively installed on processing pipe A and processing pipe B, adopts the technology that electromagnetic pulse and ultrasonic wave are combined, the attachment of scale formation in pipeline is prevented by generating electromagnetic pulse and ultrasonic wave vibration;Filtering mechanism is equipped with two groups and is respectively installed in the back of each electric pulse scale inhibition system and is used to filter and remove scale impurities in water body;Ultraviolet sterilization tank is equipped with two groups, one group of ultraviolet sterilization tank is installed between the filtering mechanism of front side and processing pipe B, another group of ultraviolet sterilization tank is installed in the back of the filtering mechanism of back side. Adopt pure physical processing mode, by electric pulse scale inhibition, filtration and ultraviolet sterilization multistage processing, without chemical reagent, can efficiently scale inhibition sterilization, reduce equipment corrosion, reduce pollution discharge, and degree of automation is high, maintenance cost is low, avoid secondary pollution.

Description

Technical Field

[0001] This utility model belongs to the field of waste heat power generation water treatment technology, specifically relating to a waste heat power generation circulating cooling water treatment system. Background Technology

[0002] In waste heat power generation systems, the treatment of circulating cooling water is crucial. Currently, the existing method for treating circulating water in waste heat power generation and cooling water in downstream cement clinker production is the "chemical method," using chemical agents such as corrosion and scale inhibitors, oxidizing and non-oxidizing bactericides. However, this treatment method has many shortcomings:

[0003] The effectiveness of water quality control in terms of scale inhibition, sterilization, and algae suppression requires strict control of chemical agents; otherwise, hard scale may easily form in the heat exchange pipes of the condenser and other cooling pipes, or blockage may occur due to fish, shrimp, snails, bacteria, and algae, affecting the power generation efficiency and equipment cooling efficiency of the unit.

[0004] Using chemical reagents requires application for procurement, price comparison and selection, and daily manual addition of reagents, which is a cumbersome and lengthy process. This increases the operating and addition costs of the reagents, storage costs, and the labor intensity of on-site personnel. In addition, the addition, handling and storage of the reagents pose certain safety risks to the operators.

[0005] Due to system circulation and water evaporation, the salinity and concentration ratio of the system water will continuously increase, requiring periodic wastewater discharge to maintain the 2-3 concentration ratio required by the "chemical method." However, chemical agents have a certain degree of toxicity and can cause secondary pollution to the water body. Strict requirements govern their dosage and discharge. Wastewater discharged to control low concentration ratios can easily cause environmental problems. Furthermore, chemical agents are corrosive to condensing equipment and piping systems, and long-term use can affect equipment lifespan.

[0006] In view of this, we propose a waste heat power generation circulating cooling water treatment system that uses purely physical methods to purify the circulating cooling water. Utility Model Content

[0007] The present invention aims to solve the technical problems of the prior art, namely, that the chemical reagent method has strict requirements for reagents, is prone to scaling and clogging of pipes, affecting equipment efficiency, requires cumbersome application and procurement, manual dosing, increases operating costs, storage costs and labor intensity, poses safety hazards, the chemical reagents are toxic, sewage discharge can easily cause secondary pollution, and long-term use can corrode equipment, and the large amount of sewage discharge due to the control of the concentration ratio results in great environmental pressure.

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] A waste heat power generation circulating cooling water treatment system, comprising:

[0010] The electro-pulse scale inhibition system has two sets installed on treatment pipe A and treatment pipe B respectively. It uses a combination of electromagnetic pulse and ultrasonic technology to prevent scale from adhering to the pipe by generating electromagnetic pulse and ultrasonic vibration.

[0011] The filtration mechanism has two sets, which are installed on the rear side of each set of electric pulse scale inhibition system and are used to filter out scale and impurities in the water.

[0012] The ultraviolet sterilization tank is provided in two sets. One set of ultraviolet sterilization tanks is installed between the front filter mechanism and the treatment pipe B, and the other set of ultraviolet sterilization tanks is installed behind the rear filter mechanism.

[0013] Preferably, the filtration mechanism includes a filter tank, a tank cover with a flange connected to the top of the filter tank, a filter screen bolted to the filter tank, a stirring motor mounted on the tank cover, a stirring shaft fixedly connected to the output pipe of the stirring motor and rotating through the filter screen, and a scraper fixedly connected to the stirring shaft for scraping scale off the inner wall of the filter tank. The filtration mechanism includes a filter tank, a tank cover, a filter screen, a stirring motor, a stirring shaft, and a scraper. The stirring motor drives the stirring shaft and the scraper to rotate, which can stir the water and scrape off scale inside the tank during filtration, thereby improving filtration efficiency and continuity.

[0014] The filter tank has an inlet at the bottom and an outlet at the top, above the filter screen. This design allows the water to be fully filtered before flowing out.

[0015] Preferably, the outlet of treatment pipe A is connected to the inlet of water pump A, the outlet of water pump A is connected to the inlet of the front filter tank through pipe A, the outlet of the front filter tank is connected to the inlet of the front ultraviolet sterilization tank through pipe B, and the outlet of the front ultraviolet sterilization tank is connected to treatment pipe B through pipe C. The outlet of treatment pipe A is sequentially connected to water pump A, pipe A, front filter tank, pipe B, front ultraviolet sterilization tank, pipe C, and treatment pipe B to form a continuous path, ensuring primary scale inhibition, filtration, sterilization, and water flow to secondary treatment.

[0016] Preferably, the outlet of treatment pipe B is connected to the inlet of water pump B, the outlet of water pump B is connected to the inlet of the rear filter tank through pipe D, the outlet of the rear filter tank is connected to the inlet of the rear ultraviolet sterilization tank through pipe E, and the outlet of the rear ultraviolet sterilization tank is connected to the return storage tank through pipe F. The outlet of treatment pipe B is sequentially connected to water pump B, pipe D, rear filter tank, pipe E, rear ultraviolet sterilization tank and pipe F, so as to realize secondary scale inhibition, filtration and sterilization treatment and return the water to the storage tank.

[0017] Preferably, the bottom of the filter tank is equipped with a drain pipe with a valve, which facilitates the periodic discharge of deposited scale and impurities to maintain the filtration system.

[0018] Preferably, the ultraviolet sterilization tank includes a tank body and a cover plate, which are connected by flanges. The cover plate has a mounting box, inside which are sealed several ultraviolet lamps that pass through the mounting box and the cover plate and extend into the tank body. The ultraviolet sterilization tank consists of a tank body, a cover plate, a mounting box, and ultraviolet lamps. The flange connection facilitates disassembly and assembly, and the sealed ultraviolet lamps can extend into the tank for efficient sterilization.

[0019] Preferably, the treatment pipe A and the circulating water outlet of the cooling tower water tank are used to draw circulating cooling water from the water tank to provide a water source for the treatment system.

[0020] Compared with the prior art, the technical effects and advantages of this utility model are:

[0021] This waste heat power generation circulating cooling water treatment system achieves water purification through the collaborative operation of multiple components. Treatment pipe A draws circulating water from the cooling tower pool. The water first passes through an electro-pulse scale inhibition system on pipe A, which uses a combination of electromagnetic pulses and ultrasound to alter the crystal morphology of calcium and magnesium ions and disrupt the scale structure, completing primary scale inhibition. It then enters the front filter tank, where a filter screen intercepts impurities, and a stirring motor drives a scraper to remove scale, achieving primary filtration. Next, in the front ultraviolet sterilization tank, ultraviolet lamps destroy microbial DNA for primary sterilization. The water then flows through the electro-pulse scale inhibition system on treatment pipe B for secondary scale inhibition, before entering the rear filter tank for secondary filtration. Finally, it undergoes secondary sterilization in the rear ultraviolet sterilization tank before returning to the storage tank. Each treatment stage is connected by pumps and pipes, forming a multi-stage treatment process.

[0022] Existing chemical methods rely on chemicals to control scale and kill bacteria, which have strict requirements for the chemicals, are prone to scaling and clogging, affecting equipment efficiency, and the chemicals are toxic and can cause secondary pollution. In contrast, this system uses a purely physical method, combining electrical pulse scale inhibition with ultraviolet sterilization, eliminating the need for chemical chemicals, avoiding chemical toxicity and emission pollution. At the same time, through multi-stage treatment, it more thoroughly inhibits scale and kills microorganisms, ensuring the heat exchange efficiency of the equipment.

[0023] Chemical methods require cumbersome application and procurement processes, manual dosing, increasing operating costs, storage costs, and labor intensity. Furthermore, chemical storage and dosing pose safety hazards, and chemical corrosion affects equipment lifespan. This system, however, is highly automated. The electro-pulse scale inhibition system and filtration mechanism can operate stably for extended periods, reducing manual intervention, eliminating chemical costs, facilitating maintenance of the filter tank's drain pipe, minimizing equipment corrosion, extending service life, and overall lowering costs.

[0024] Chemical methods are limited by reagent concentration and emission requirements, resulting in low concentration ratios and potential environmental problems from wastewater discharge. This system, through two sets of electric pulse scale inhibition, filtration, and sterilization devices, can flexibly adjust its operating mode according to water quality, increasing the concentration ratio and reducing wastewater discharge. Furthermore, it incorporates remote monitoring for online monitoring and remote operation, making management more convenient and compliant with energy conservation and emission reduction policies. Attached Figure Description

[0025] Figure 1 This is a first-view diagram of the present invention;

[0026] Figure 2 This is a second-view diagram of the present invention;

[0027] Figure 3 This is a schematic diagram of the structure of the ultraviolet sterilization tank of this utility model;

[0028] Figure 4 This is an exploded view of the ultraviolet sterilization tank of this utility model;

[0029] Figure 5 This is a schematic diagram of the structure of the filter tank of this utility model;

[0030] Figure 6 This is an exploded view of the present invention.

[0031] In the diagram: 1. Electro-pulse scale inhibition system; 2. Filter tank; 21. Tank cover; 23. Agitator motor; 24. Filter screen; 25. Agitator shaft; 26. Scraper; 27. Valve; 28. Drain pipe; 3. Ultraviolet sterilization tank; 31. Tank body; 32. Cover plate; 33. Mounting box; 34. Ultraviolet lamp; 4. Treatment pipe A; 5. Treatment pipe B; 6. Water pump A; 7. Pipe A; 8. Pipe B; 9. Pipe C; 10. Water pump B; 11. Pipe D; 12. Pipe E; 13. Pipe F. Detailed Implementation

[0032] 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.

[0033] The following combination Figures 1 to 6 This application will be described in further detail.

[0034] This application discloses a waste heat power generation circulating cooling water treatment system, including an electric pulse scale inhibition system 1, a filtration mechanism, and an ultraviolet sterilization tank 3. The electric pulse scale inhibition system 1 has two sets, respectively installed on treatment pipe A4 and treatment pipe B5. Treatment pipe A4 is connected to the circulating water outlet of the cooling tower water tank and is used to draw circulating cooling water from the water tank. The filtration mechanism has two sets, respectively installed on the rear side of each set of electric pulse scale inhibition systems 1, and is used to filter and remove scale and impurities from the water.

[0035] The circulating water from the cooling tower pool enters the treatment pipe A4, where it undergoes primary scale inhibition treatment via the electric pulse scale inhibition system 1. After treatment, it enters the front filter tank 2 for primary filtration, and then enters the front ultraviolet sterilization tank 3 for sterilization. Subsequently, it enters the treatment pipe B5, the rear filter tank 2, and the rear ultraviolet sterilization tank 3, undergoing secondary scale inhibition treatment, secondary filtration, and secondary sterilization treatment in sequence.

[0036] The electric pulse scale inhibition system 1 adopts the XZBCR scale inhibition and rust removal energy-saving device, which uses a combination of electromagnetic pulse and ultrasonic technology to prevent the adhesion of scale in the pipeline by generating high-frequency electromagnetic pulse and ultrasonic vibration.

[0037] By combining electromagnetic pulse and ultrasonic technology, high-frequency electromagnetic pulses can change the crystal morphology of calcium and magnesium ions in water, making it difficult for them to form hard scale; ultrasonic vibrations can destroy the existing scale crystal structure, preventing it from adhering to the inner wall of the pipe, thereby effectively inhibiting scale formation and removing some of the original rust, keeping the pipe unobstructed.

[0038] No chemical additives are required, avoiding chemical consumption and related energy consumption, while also reducing environmental pollution from chemical additives, thus complying with energy conservation and emission reduction policies. It prevents scale and rust from corroding and clogging pipes and equipment, reducing equipment maintenance frequency and extending equipment lifespan. It enables long-term stable operation, reducing manual intervention and labor intensity.

[0039] The filtration mechanism includes a filter tank 2, a tank cover 21 with a flange connected to the top of the filter tank 2, a filter screen 24 bolted inside the filter tank 2, a stirring motor 23 mounted on the tank cover 21, a stirring shaft 25 fixedly connected to the output pipe of the stirring motor 23 and rotating through the filter screen 24, and a scraper 26 fixedly connected to the stirring shaft 25 for scraping scale off the inner wall of the filter tank 2. The filter tank 2 has an inlet at its bottom and an outlet at its top, above the filter screen 24. A drain pipe 28 with a valve 27 is located at the bottom of the filter tank 2.

[0040] The outlet of the treatment pipe A4 is connected to the inlet of the water pump A6. The outlet of the water pump A6 is connected to the inlet of the front filter tank 2 through pipe A7. The outlet of the front filter tank 2 is connected to the inlet of the front ultraviolet sterilization tank 3 through pipe B8. The outlet of the front ultraviolet sterilization tank 3 is connected to the treatment pipe B5 through pipe C9.

[0041] The filter screen 24 can intercept larger scale particles and impurities in the water. The stirring motor 23 drives the stirring shaft 25 and the scraper 26 to rotate. On the one hand, the water is stirred so that impurities are easier to filter. On the other hand, the scraper 26 scrapes off the scale adhering to the inner wall of the filter tank 2 and the filter screen 24, preventing the filter media from clogging and improving the filtration efficiency and continuous filtration capacity.

[0042] The drain pipe 28 at the bottom of filter tank 2 is equipped with valve 27, which can periodically discharge deposited scale and impurities without disassembling filter tank 2, making maintenance convenient and ensuring the normal operation of the filtration system. Through primary and secondary filtration, scale and impurities in the water are gradually removed, making the circulating water cleaner and reducing the impact on subsequent sterilization treatments and equipment.

[0043] The ultraviolet sterilization tank 3 is provided in two sets. One set of ultraviolet sterilization tank 3 is installed between the front filter mechanism and the treatment pipe B5, and the other set of ultraviolet sterilization tank 3 is installed behind the rear filter mechanism.

[0044] The outlet of the treatment pipe B5 is connected to the inlet of the water pump B10. The outlet of the water pump B10 is connected to the inlet of the rear filter tank 2 through the pipe D11. The outlet of the rear filter tank 2 is connected to the inlet of the rear ultraviolet sterilization tank 3 through the pipe E12. The outlet of the rear ultraviolet sterilization tank 3 is connected to the return storage tank through the pipe F13.

[0045] The ultraviolet sterilization tank 3 includes a tank body 31 and a cover plate 32. The tank body 31 and the cover plate 32 are connected by flanges. The cover plate 32 is provided with a mounting box 33. Several ultraviolet lamps 34 that pass through the mounting box 33 and the cover plate 32 and extend into the tank body 31 are sealed and installed inside the mounting box 33.

[0046] The ultraviolet light emitted by the ultraviolet lamp 34 can destroy the DNA structure of bacteria, algae, and other microorganisms, rendering them unable to reproduce, thus achieving a highly efficient sterilization and algae-suppressing effect and ensuring that the microbial content in the circulating water meets the requirements. No chemical agents are added, avoiding secondary pollution of water bodies and the environment by chemical residues, making it environmentally friendly and safe. Two sets of ultraviolet sterilization tanks 3 perform primary and secondary sterilization, enhancing the sterilization effect and ensuring that the circulating water remains sterile during multiple circulations, preventing microbial growth and blockage of pipes and equipment. The tank body 31 is connected to the cover plate 32 via flanges, facilitating the disassembly and installation of the ultraviolet lamp 34. The sealed design of the mounting box 33 prevents water from entering and damaging electrical components, simplifying maintenance.

[0047] The waste heat power generation circulating cooling water treatment system adopts multi-stage treatment for more thorough treatment. The circulating water undergoes two-stage scale inhibition treatment by the electric pulse scale inhibition system 1, two-stage filtration by the filtration mechanism, and two-stage sterilization by the ultraviolet sterilization tank 3. The treatment process is complete, and the water purification effect is significant, which can effectively solve problems such as scale and microorganisms in the circulating water.

[0048] Improving water quality can reduce pipe blockage and equipment corrosion, ensure the heat exchange efficiency of equipment such as cooling towers and condensers, improve the overall operating efficiency of waste heat power generation systems, and increase power generation. It also reduces the costs of purchasing, storing, and adding chemical agents, lowers labor maintenance costs, and extends equipment replacement cycles, thereby comprehensively reducing system operating costs.

[0049] The setup of two sets of electric pulse scale inhibition systems 1, a filtration mechanism, and an ultraviolet sterilization tank 3 allows for flexible adjustment of the operating mode based on the circulating water quality and system operational requirements, ensuring stable treatment results. Combined with a remote monitoring and management system, the entire treatment system can be monitored online and operated remotely, allowing for real-time monitoring of system operation status, timely identification and resolution of problems, and improved management efficiency.

[0050] The waste heat power generation circulating cooling water treatment system mainly covers the processes of circulating water extraction, multi-stage scale inhibition, filtration, sterilization, and reflux, as detailed below:

[0051] Circulating water extraction: The treatment pipe A4 is connected to the circulating water outlet of the cooling tower water tank to extract circulating cooling water from the water tank and provide a water source for subsequent treatment.

[0052] Primary scale inhibition treatment: After the circulating water enters the treatment pipe A4, it flows through the electric pulse scale inhibition system 1 installed on the treatment pipe A4. The system uses a combination of electromagnetic pulse and ultrasonic technology to perform primary scale inhibition treatment on the water, preventing scale from adhering to the pipe.

[0053] Primary filtration: Water that has undergone primary scale inhibition treatment enters the front filter tank 2 (part of the filtration mechanism). Scale particles and impurities in the water are intercepted by the filter screen 24 inside the filter tank 2, achieving primary filtration and initial water purification. Simultaneously, the stirring motor 23 drives the stirring shaft 25 and scraper 26 to rotate, agitating the water to make impurities easier to filter and scraping away scale from the inner wall of the filter tank 2 and the filter screen 24, preventing clogging of the filter media.

[0054] Primary sterilization treatment: The water after primary filtration enters the front ultraviolet sterilization tank 3, where ultraviolet light emitted by ultraviolet lamp 34 destroys the DNA structure of bacteria, algae and other microorganisms, thus performing primary sterilization treatment and reducing the microbial content in the water.

[0055] Secondary scale inhibition treatment: After the primary sterilization treatment, the water enters the treatment pipe B5 and passes through the electric pulse scale inhibition system 1 installed on the treatment pipe B5 again for secondary scale inhibition treatment, further enhancing the scale inhibition effect.

[0056] Secondary filtration: Water that has undergone secondary scale inhibition treatment enters the rear filter tank 2 (another set of filtration mechanisms), and is filtered again by the action of the filter screen 24 and the stirring scraper 26 to further remove scale and impurities in the water, making the water quality purer.

[0057] Secondary sterilization treatment: The water after secondary filtration enters the ultraviolet sterilization tank 3 at the rear for secondary sterilization treatment to ensure that the microorganisms in the circulating water are completely killed and prevent microbial growth.

[0058] Circulating water return: Water that has undergone secondary sterilization is connected to the return storage tank through pipe F13 to complete the entire treatment process. The treated water can then re-enter the cooling tower water tank for recycling.

[0059] Throughout the entire treatment process, the outlet of treatment pipe A4 is connected to the inlet of water pump A6. The outlet of water pump A6 is connected to the inlet of the front filter tank 2 via pipe A7. The outlet of the front filter tank 2 is connected to the inlet of the front ultraviolet sterilization tank 3 via pipe B8. The outlet of the front ultraviolet sterilization tank 3 is connected to treatment pipe B5 via pipe C9. The outlet of treatment pipe B5 is connected to the inlet of water pump B10. The outlet of water pump B10 is connected to the inlet of the rear filter tank 2 via pipe D11. The outlet of the rear filter tank 2 is connected to the inlet of the rear ultraviolet sterilization tank 3 via pipe E12. The outlet of the rear ultraviolet sterilization tank 3 is connected to the return storage tank via pipe F13. All components are connected by pipes and water pumps to form a complete treatment process, ensuring that the circulating water is efficiently purified.

[0060] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A waste heat power generation cycle cooling water treatment system characterized by comprising: include: The electro-pulse scale inhibition system (1) has two sets installed on the treatment pipe A (4) and the treatment pipe B (5) respectively. It adopts the technology of combining electromagnetic pulse and ultrasonic waves to prevent the adhesion of scale in the pipe by generating electromagnetic pulse and ultrasonic vibration. The filtration mechanism is provided in two sets and is installed on the rear side of each set of electric pulse scale inhibition system (1) and is used to filter out scale and impurities in the water. The ultraviolet sterilization tank (3) is provided in two sets. One set of ultraviolet sterilization tank (3) is installed between the front filter mechanism and the treatment pipe B (5), and the other set of ultraviolet sterilization tank (3) is installed on the rear side of the rear filter mechanism.

2. A waste heat power generation cycle cooling water treatment system according to claim 1, characterized by: The filtration mechanism includes a filter tank (2), a tank cover (21) with a flange connected to the top of the filter tank (2), a filter screen (24) installed in the filter tank (2) by bolts, a stirring motor (23) installed on the tank cover (21), a stirring shaft (25) fixedly connected to the output pipe of the stirring motor (23) and rotating through the filter screen (24), and a scraper (26) fixedly connected to the stirring shaft (25) and used to scrape off scale from the inner wall of the filter tank (2); The filter tank (2) has an inlet at the bottom and an outlet at the top, which is located above the filter screen (24).

3. A waste heat recovery cycle cooling water treatment system according to claim 2, wherein: The outlet of the treatment pipe A (4) is connected to the inlet of the water pump A (6). The outlet of the water pump A (6) is connected to the inlet of the front filter tank (2) through pipe A (7). The outlet of the front filter tank (2) is connected to the inlet of the front ultraviolet sterilization tank (3) through pipe B (8). The outlet of the front ultraviolet sterilization tank (3) is connected to the treatment pipe B (5) through pipe C (9).

4. A waste heat recovery cycle cooling water treatment system according to claim 3, wherein: The outlet of the treatment pipe B (5) is connected to the inlet of the water pump B (10). The outlet of the water pump B (10) is connected to the inlet of the rear filter tank (2) through the pipe D (11). The outlet of the rear filter tank (2) is connected to the inlet of the rear ultraviolet sterilization tank (3) through the pipe E (12). The outlet of the rear ultraviolet sterilization tank (3) is connected to the return storage tank through the pipe F (13).

5. The waste heat power generation circulating cooling water treatment system according to claim 2, characterized in that: The bottom of the filter tank (2) is equipped with a drain pipe (28) with a valve (27).

6. The waste heat power generation circulating cooling water treatment system according to claim 1, characterized in that: The ultraviolet sterilization tank (3) includes a tank body (31) and a cover plate (32). The tank body (31) and the cover plate (32) are connected by flanges. The cover plate (32) is provided with an installation box (33). Several ultraviolet lamps (34) that pass through the installation box (33) and the cover plate (32) and extend into the tank body (31) are sealed inside the installation box (33).

7. The waste heat power generation circulating cooling water treatment system according to claim 1, characterized in that: The treatment pipe A(4) is connected to the circulating water outlet of the cooling tower water pool, and is used to extract the circulating cooling water in the pool.

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