Ultraviolet water treatment device, and device and method for treating total organic carbon in demineralized water

Abstract

The invention relates to the technical field of water treatment, in particular to an ultraviolet water treatment device and a treatment device and method for total organic carbon in demineralized water. The ultraviolet equipment is arranged in the device body and is used for emitting ultraviolet rays with a target wavelength; the monitoring assembly is arranged at the water inlet and outlet of the device body and used for monitoring multiple water parameters at the water inlet and outlet; the control equipment is in communication connection with the ultraviolet equipment and the water quality monitoring assembly and is used for adjusting working parameters of the ultraviolet equipment according to the multiple water parameters at the inlet and outlet. Therefore, the problems that the content of organic matters in the desalted water exceeds the standard and safe operation of a unit boiler is affected due to the fact that some small-molecular organic matters cannot be removed through a reverse osmosis membrane in a water treatment process in related technologies are solved.

Description

Technical Field

[0001] The present application relates to the technical field of water treatment, and in particular to an ultraviolet water treatment device, a device and method for treating total organic carbon in desalted water. Background Art

[0002] In thermal power plants, demineralized water is primarily used as boiler feed water for units. Its quality directly impacts the safe and economical operation of boilers and turbines. TOC (Total Organic Carbon) is a key indicator of the organic matter content in water. If the organic matter content in demineralized water exceeds the standard, as it enters the boiler feedwater system, the increasing temperature and pressure cause it to decompose into small organic acid molecules, typically in the form of formic and acetic acid. This manifests as an increase in the boiler's steam hydrogen conductivity. These organic acids can cause corrosion on the boiler's heating surfaces and turbine flow passages. In severe cases, they can cause boiler tube bursts, impacting the safe and reliable operation of the unit.

[0003] In the demineralized water production process, organic matter is removed through coagulation, activated carbon filtration and adsorption, membrane treatment, and ion exchange. When the raw water is surface water or groundwater, the treatment process brings the demineralized water's TOC content up to standard for generator set operation. With the increase in installed capacity of thermal power plants, steam parameters continue to improve, and the requirements for boiler steam quality are also increasing. In recent years, the requirements for water resource utilization and environmental protection have also intensified. Water conservation and zero-emission transformation have become important tasks for thermal power plants. In the process of graded water utilization, the use of recycled water blowdown as a boiler feed water source has become a key design process. Because the circulating water contains scale and corrosion inhibitors and is constantly circulating and exposed to the atmosphere, it provides an ideal environment for microbial growth. Therefore, the organic matter content in the recycled water blowdown is higher than that in the raw water directly obtained.

[0004] Traditional demineralized water treatment processes are effective for TOC removal from conventional water sources. However, with the trend toward zero wastewater discharge from thermal power plants, the use of circulating water as makeup water is becoming increasingly widespread. Because this type of water contains scale and corrosion inhibitors and microbial metabolites, its organic composition is more complex. Some small-molecule organic matter cannot be removed by reverse osmosis membranes and leaks into subsequent ion exchange treatment systems, causing organic contamination of the anion resin. This, in turn, increases the organic content in the demineralized water, manifesting as elevated TOC test data that can even exceed standard requirements, impacting the safe operation of the unit's boilers. Summary of the Invention

[0005] The present application provides an ultraviolet water treatment device, a device and method for treating total organic carbon in desalted water, in order to solve the problem in the related art that certain small molecular organic matter in the water treatment process cannot be removed by the reverse osmosis membrane, resulting in excessive organic matter content in the desalted water, affecting the safe operation of the unit boiler.

[0006] In a first aspect, an embodiment of the present application provides an ultraviolet water treatment device, comprising: a device body; an ultraviolet device disposed inside the device body, configured to emit ultraviolet rays of a target wavelength; a monitoring component disposed at a water inlet and outlet of the device body, configured to monitor multiple water parameters at the inlet and outlet; and a control device communicatively connected to the ultraviolet device and the monitoring component, configured to adjust operating parameters of the ultraviolet device according to the multiple water parameters at the inlet and outlet.

[0007] Optionally, the monitoring component includes: a flow sensor, a total organic carbon content analyzer, a conductivity meter and an inlet turbidity sensor, wherein the flow sensor and inlet turbidity sensor arranged at the water inlet are used to monitor the water flow and inlet turbidity at the water inlet, respectively; the total organic carbon content analyzer arranged at the water inlet and outlet is used to monitor the organic carbon content of the water quality at the inlet and outlet; the conductivity meter arranged at the water outlet is used to monitor the water conductivity at the outlet.

[0008] Optionally, the control module is configured to adjust the irradiation parameters of the ultraviolet lamp according to the organic carbon content when it is identified that the turbidity of the influent water exceeds a preset threshold.

[0009] Optionally, the control module is further configured to adjust the ultraviolet intensity and reflection times in the ultraviolet lamp according to the water inlet flow rate.

[0010] Optionally, the control module is further configured to: generate a water quality report by analyzing the current water quality according to the water conductivity and total organic carbon content at the water outlet, and feed the water quality report back to the target device.

[0011] Optionally, the reflectivity of the inner wall material of the device body is greater than a preset reflectivity.

[0012] The second aspect of the present application provides a device for treating total organic carbon in desalted water, including: a desalted water tank in a thermal power plant, used to store pre-treated desalted water; a desalted water pump, used to pressurize and transport the desalted water from the water tank to an ultraviolet water treatment device; the ultraviolet water treatment device described in the above embodiment, used to utilize ultraviolet light to photolyze small molecular organic matter into carbon dioxide and water; and a unit make-up water tank, used to store high-quality desalted water after final treatment, for direct use as boiler feed water.

[0013] In a third aspect, an embodiment of the present application provides a method for treating total organic carbon in desalted water. The method utilizes the device for treating total organic carbon in desalted water according to the above-mentioned embodiment to achieve organic carbon treatment. The method includes the following steps: obtaining the water flow rate, water turbidity, and total organic carbon content at the water inlet of the ultraviolet water treatment device; adjusting the ultraviolet intensity and number of reflections in the ultraviolet lamp according to the water flow rate; and adjusting the irradiation parameters of the ultraviolet lamp according to the total organic carbon content when it is identified that the water turbidity exceeds a preset threshold. Optionally, before adjusting the irradiation parameters of the ultraviolet lamp according to the total organic carbon content, the method further includes:

[0014] Generate alarm information and upload it to the target device.

[0015] Optionally, it also includes: obtaining the water conductivity and total organic carbon content at the water outlet; analyzing the current water quality based on the water conductivity and total organic carbon content at the water outlet; generating a water quality report based on the current water quality, and sending the water quality report to the target device.

[0016] Therefore, this application has at least the following beneficial effects:

[0017] (1) In the embodiment of the present application, the ultraviolet device is used to emit ultraviolet rays of a specific wavelength, and its main purpose is to degrade the total organic carbon in the desalted water of a thermal power plant into carbon dioxide and water or convert it into ionic components that can be removed by subsequent water treatment equipment through ultraviolet photolysis reaction, thereby reducing the TOC content in the desalted water; the monitoring component is used to monitor multiple key water parameters at the water inlet and outlet in real time, which is crucial for evaluating the water quality and the effect of ultraviolet treatment; the control device can dynamically adjust the operating parameters of the ultraviolet device according to the multiple water parameters at the inlet and outlet, which can not only improve the treatment efficiency, but also extend the service life of the ultraviolet lamp and ensure that effective organic matter degradation can be achieved under different water quality conditions.

[0018] (2) The ultraviolet water treatment device in the embodiment of the present application can effectively degrade small molecular organic matter and convert it into carbon dioxide and water, significantly reducing the TOC content in the desalted water, thereby ensuring the quality of the subsequent boiler feed water; the desalted water tank of the thermal power plant stores pre-treated desalted water, providing a stable water source for the entire treatment process; the desalted water pump ensures the stable delivery of water flow and maintains the normal operation of the system; by storing high-quality desalted water in the unit feed water tank and directly using it for boiler feed water, not only the safety and reliability of boiler operation are improved, but also the service life of the equipment is extended and the cost of maintenance and replacement is reduced.

[0019] (3) The embodiment of the present application can flexibly adjust the ultraviolet irradiation parameters according to the actual water flow conditions to ensure that the best organic matter degradation effect can be achieved under different flow conditions. Dynamic adjustment of the working parameters of the ultraviolet lamp helps to avoid energy waste and extend the service life of the lamp, thereby reducing operating costs. By precisely controlling the ultraviolet irradiation conditions, unnecessary high-intensity irradiation time can be reduced, achieving the purpose of energy conservation and emission reduction; real-time monitoring and automatic adjustment mechanisms enable the ultraviolet treatment device to adapt to a wider range of water quality changes. Whether facing a sudden increase in flow or deterioration in water quality, the system can self-adjust to maintain a stable treatment effect, enhancing the reliability and flexibility of the overall operation; precise control of ultraviolet irradiation parameters not only improves treatment efficiency, but also ensures the consistency of effluent water quality, which is crucial for maintaining high standards for boiler feed water and preventing problems such as equipment corrosion due to water quality fluctuations.

[0020] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0022] Figure 1 Schematic diagram of a block diagram of an ultraviolet water treatment device provided according to an embodiment of the present application;

[0023] Figure 2 This is a schematic diagram of the interior of an ultraviolet water treatment device provided according to an embodiment of the present application;

[0024] Figure 3 Schematic diagram of a block diagram of a device for treating total organic carbon in desalted water according to an embodiment of the present application;

[0025] Figure 4 This is a flow chart of a method for treating total organic carbon in desalted water according to an embodiment of the present application. DETAILED DESCRIPTION

[0026] The following describes in detail embodiments of the present application, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0027] The following describes an ultraviolet water treatment device, a device and a method for treating total organic carbon in desalted water according to embodiments of the present application with reference to the accompanying drawings.

[0028] Specifically, Figure 1 Schematic diagram of the ultraviolet water treatment device according to an embodiment of the present application.

[0029] like Figure 1 As shown, the ultraviolet water treatment device 10 includes: a device body 101 , an ultraviolet device 102 , a monitoring component 103 , and a control device 104 .

[0030] Among them, the ultraviolet device 102 is arranged inside the device body 101, and is used to emit ultraviolet rays of the target wavelength; the monitoring component 103 is arranged at the water inlet and outlet of the device body 101, and is used to monitor multiple water parameters at the inlet and outlet; the control device 104 is communicated with the ultraviolet device 102 and the monitoring component 103, and is used to adjust the working parameters of the ultraviolet device 102 according to the multiple water parameters at the inlet and outlet.

[0031] It can be understood that the ultraviolet equipment in the embodiment of the present application is used to emit ultraviolet rays of a specific wavelength, and its main purpose is to degrade the total organic carbon in the desalted water of a thermal power plant into carbon dioxide and water through ultraviolet photolysis reaction or convert it into ionic components that can be removed by subsequent water treatment equipment, thereby reducing the TOC content in the desalted water; the monitoring component is used to monitor multiple key water parameters at the water inlet and outlet in real time, which is crucial for evaluating the water quality and the effect of ultraviolet treatment; the control device can dynamically adjust the working parameters of the ultraviolet equipment according to the multiple water parameters at the inlet and outlet, which can not only improve the treatment efficiency, but also extend the service life of the ultraviolet lamp and ensure effective organic matter degradation under different water quality conditions.

[0032] In the embodiment of the present application, the monitoring component 103 includes: a flow sensor, a total organic carbon content analyzer, a conductivity meter and an inlet water turbidity sensor.

[0033] Among them, the flow sensor and inlet turbidity sensor are set at the water inlet, which are used to monitor the water flow and inlet turbidity at the water inlet respectively; the total organic carbon content analyzer is set at the inlet and outlet, which is used to monitor the organic carbon content of the water quality at the inlet and outlet; the conductivity meter is set at the outlet, which is used to monitor the water conductivity at the outlet.

[0034] It can be understood that in the embodiment of the present application, the flow sensor is used to monitor the water flow entering the ultraviolet treatment device in real time, which helps the control system to adjust the working intensity and irradiation time of the ultraviolet lamp according to the actual flow rate to ensure optimal photolysis efficiency; the inlet turbidity sensor monitors the turbidity of the inlet water, where high turbidity may affect the penetration of ultraviolet rays and the treatment effect. Therefore, when high turbidity is detected, the system will issue an alarm and may automatically adjust the light intensity to maintain the treatment efficiency; the total organic carbon content analyzer is used to monitor changes in organic carbon content in water quality. By comparing the TOC data at the inlet and outlet, the removal effect of the ultraviolet photolysis device on organic matter can be evaluated to ensure that the TOC content in the desalted water meets the standard requirements; the conductivity meter is used to monitor the conductivity of the treated water. Since conductivity is an important indicator for measuring the ion concentration in water, it indirectly reflects the water quality; monitoring the conductivity of the outlet water can help evaluate whether the water quality after ultraviolet treatment meets the standards for subsequent treatment steps or direct use.

[0035] In the embodiment of the present application, the control module 104 is configured to adjust the irradiation parameters of the ultraviolet lamp according to the organic carbon content when it is identified that the turbidity of the influent water exceeds a preset threshold.

[0036] Among them, the preset threshold can be set according to actual needs and is not specifically limited.

[0037] It can be understood that the embodiment of the present application can adjust the irradiation parameters of the ultraviolet lamp according to the organic carbon content when it is identified that the turbidity of the inlet water exceeds a preset threshold, thereby flexibly adjusting the ultraviolet irradiation parameters according to different water quality conditions, which can significantly improve the degradation efficiency of organic matter, ensure that the TOC content in the desalted water meets the set standards, and thus protect the boiler and steam turbine from the risk of organic acid corrosion. It can adapt to a wider range of water quality conditions. It enhances the flexibility and adaptability of the system, avoids unnecessary energy waste by precisely controlling the working state of the ultraviolet lamp, and reduces maintenance frequency and replacement costs, which is conducive to reducing overall operating costs.

[0038] In the embodiment of the present application, the control module 104 is further configured to adjust the intensity and number of reflections of the ultraviolet light in the ultraviolet lamp according to the water inlet flow rate.

[0039] It can be understood that the embodiment of the present application can adjust the ultraviolet intensity and reflection times in the ultraviolet lamp according to the water inlet flow rate, so that the ultraviolet treatment device can automatically adapt to different changes in water inlet flow rate, and can ensure stable treatment effects regardless of low flow rate or peak period, thereby enhancing the overall adaptability and operational stability of the system; precise control of ultraviolet intensity and reflection times ensures that even in the case of fluctuations in water inlet flow rate, the outlet water quality can still maintain consistent high quality standards, effectively preventing the problem of unstable treatment effect caused by flow rate changes; it not only improves the utilization rate of water resources, but also reduces energy consumption and maintenance costs.

[0040] In the embodiment of the present application, the control module 104 is further configured to: generate a water quality report based on the water conductivity and total organic carbon content of the water outlet by analyzing the current water quality, and feed the water quality report back to the target device.

[0041] It can be understood that the embodiment of the present application can analyze the current water quality based on the water conductivity and total organic carbon content at the outlet to generate a water quality report, which can detect potential problems at an early stage, so that timely measures can be taken for preventive maintenance and the occurrence rate of failures can be reduced. This not only enhances the self-regulation ability of the system, but also improves the efficiency and reliability of the entire water treatment process.

[0042] In the embodiment of the present application, the reflectivity of the inner wall material of the device body 101 is greater than the preset reflectivity.

[0043] The preset reflectivity can be set according to actual needs and is not specifically limited.

[0044] It can be understood that the high-reflectivity inner wall material in the embodiment of the present application enables ultraviolet rays to be reflected multiple times inside the device, increasing the effective path length of ultraviolet rays, thereby improving the removal rate of organic matter in water, especially for small molecular organic matter that is difficult to degrade. It is more effective, not only can it significantly improve the processing efficiency and stability of the ultraviolet photolysis device, but also can save energy and reduce costs to a certain extent.

[0045] According to the ultraviolet water treatment device proposed in the embodiment of the present application, the ultraviolet equipment is used to emit ultraviolet rays of a specific wavelength. Its main purpose is to degrade the total organic carbon in the desalted water of a thermal power plant into carbon dioxide and water or convert it into ionic components that can be removed by subsequent water treatment equipment through ultraviolet photolysis reaction, thereby reducing the TOC content in the desalted water; the monitoring component is used to monitor multiple key water parameters at the water inlet and outlet in real time, which is crucial for evaluating the water quality and the effect of ultraviolet treatment; the control device can dynamically adjust the operating parameters of the ultraviolet equipment according to the multiple water parameters at the inlet and outlet, which can not only improve the treatment efficiency, but also extend the service life of the ultraviolet lamp tube and ensure effective organic matter degradation under different water quality conditions.

[0046] The following will be combined Figure 2 The ultraviolet water treatment device of the present application is described in detail. The device includes a water treatment device housing, an ultraviolet illumination unit, a water quality monitoring unit, an ultraviolet reflection unit, a rectifier unit, and a control system. The device is automatically started and stopped according to the feedback information of the inlet flow signal. The light intensity and wavelength are automatically adjusted by monitoring the inlet water quality. The treatment capacity of the device is monitored and adjusted by monitoring the outlet water quality. The details are as follows:

[0047] 1) Ultraviolet water treatment device, with an internal ultraviolet lamp, and the inner wall of the device is made of special materials to enhance the reflection efficiency of ultraviolet rays;

[0048] 2) Design an automated control system for the UV water treatment device to automatically shut down when the water is cut off, adjust the UV intensity and reflection times according to changes in water flow, and automatically adjust the wavelength according to changes in organic matter content and composition;

[0049] 3) Design online monitoring of the water quality of the ultraviolet water treatment device, mainly monitoring the turbidity and TOC content of the inlet water. When the turbidity of the water quality exceeds the standard, it will automatically alarm and adjust the light intensity. When the TOC content changes, it will realize automatic adjustment.

[0050] 4) Design online monitoring of the water quality of the ultraviolet water treatment device, monitor the conductivity and TOC content of the water, and provide water quality information to the operating personnel.

[0051] In summary, 1) the design of the UV water treatment device should consider the matching of the real-time water flow rate and the UV irradiation intensity and reflection times to ensure sufficient photolysis of organic matter.

[0052] 2) The selection of UV lamps should take into account their wavelength and lifespan. Before designing, a comprehensive analysis of water quality should be conducted to select the UV wavelength that corresponds to the organic matter content in the water.

[0053] 3) The control system should have an automatic adjustment function to adjust the ultraviolet irradiation intensity and time in real time according to the TOC content of the influent.

[0054] Figure 3 It is a block diagram of a device for treating total organic carbon in desalted water according to an embodiment of the present application.

[0055] like Figure 3 As shown, the device for treating total organic carbon in desalted water 20 comprises: a desalted water tank 201 of a thermal power plant, a desalted water pump 202 , an ultraviolet water treatment device 10 and a unit water supply tank 203 .

[0056] Among them, the desalted water tank 201 of the thermal power plant is used to store pre-treated desalted water; the desalted water pump 202 is used to pressurize and transport the desalted water from the water tank to the ultraviolet water treatment device; the ultraviolet water treatment device 10 is used to use ultraviolet light to photolyze small molecular organic matter into carbon dioxide and water; the unit water supply tank 203 is used to store the high-quality desalted water after the final treatment, which is directly used as boiler feed water.

[0057] According to the total organic carbon treatment device in desalted water proposed in the embodiment of the present application, the ultraviolet water treatment device can effectively degrade small molecular organic matter and convert it into carbon dioxide and water, significantly reducing the TOC content in the desalted water and ensuring the quality of subsequent use as boiler feed water; the desalted water tank of the thermal power plant stores pre-treated desalted water, providing a stable water source for the entire treatment process; the desalted water pump ensures the stable delivery of water flow and maintains the normal operation of the system; by storing high-quality desalted water in the unit feed water tank and directly using it for boiler feed water, not only the safety and reliability of boiler operation are improved, but also the service life of the equipment is extended and the cost of maintenance and replacement is reduced.

[0058] Figure 4 A schematic flow chart of a method for treating total organic carbon in desalted water provided in an embodiment of the present application.

[0059] like Figure 4 As shown, the method for treating total organic carbon in desalted water utilizes a device for treating total organic carbon in desalted water to achieve organic carbon treatment, wherein the method comprises the following steps:

[0060] In step S101, the water flow rate, water turbidity and total organic carbon content of the water inlet of the ultraviolet water treatment device are obtained.

[0061] It is understandable that the embodiment of the present application can obtain the water flow rate, water turbidity and total organic carbon content of the water inlet of the ultraviolet water treatment device to facilitate subsequent adjustment of the operating parameters of the ultraviolet water treatment device.

[0062] In step S102, the ultraviolet intensity and the number of reflections in the ultraviolet lamp are adjusted according to the water inflow rate.

[0063] It will be appreciated that the embodiments of the present application can adjust the UV intensity and number of reflections in the UV lamp according to the inlet water flow rate. Different inlet water flow rates result in different water residence time and contact area within the UV water treatment device. By adjusting the UV intensity and number of reflections in real time, sufficient photolysis of organic matter in the water can be ensured based on the actual flow rate. This ensures that high organic matter degradation efficiency is maintained at any given flow rate, effectively reducing the total organic carbon content.

[0064] In step S103, when it is identified that the turbidity of the influent water exceeds a preset threshold, the irradiation parameters of the ultraviolet lamp are adjusted according to the total organic carbon content.

[0065] Among them, the preset threshold can be set according to actual needs and is not specifically limited.

[0066] It can be understood that the embodiment of the present application can adjust the irradiation parameters of the ultraviolet lamp according to the total organic carbon content when it is identified that the turbidity of the inlet water exceeds the preset threshold value. It can minimize unnecessary energy consumption while satisfying the treatment effect. By precisely controlling the ultraviolet irradiation parameters, it can effectively cope with the challenges brought about by changes in the turbidity of the inlet water and ensure the stability and consistency of the effluent water quality. It can not only improve the treatment efficiency, but also optimize resource utilization, improve water quality stability, and enhance the adaptability and reliability of the system.

[0067] In an embodiment of the present application, before adjusting the irradiation parameters of the ultraviolet lamp according to the total organic carbon content, the method further includes: generating alarm information and uploading it to the target device.

[0068] It can be understood that the embodiment of the present application can generate alarm information and upload it to the target device, which can quickly remind the operator or management system to pay attention to changes in the current water quality conditions, which not only improves the speed of problem handling, but also enhances overall safety.

[0069] In an embodiment of the present application, it also includes: obtaining the water conductivity and total organic carbon content at the water outlet; analyzing the current water quality based on the water conductivity and total organic carbon content at the water outlet; generating a water quality report based on the current water quality, and sending the water quality report to the target device.

[0070] It can be understood that the embodiments of the present application can obtain the water conductivity and total organic carbon content at the water outlet; analyze the current water quality based on the water conductivity and total organic carbon content at the water outlet; generate a water quality report based on the current water quality, and send the water quality report to the target device to facilitate the early detection of potential problems, so as to take timely measures for preventive maintenance and reduce the occurrence of failures.

[0071] It should be noted that the present application utilizes the principle of ultraviolet photolysis to photolyze some of the organic matter in the boiler feed water production system that cannot be effectively removed into ionic substances that can be removed by subsequent ion exchange or directly decomposed into carbon dioxide and water to achieve the purpose of reducing the TOC content in the desalted water. This method has the advantages of simple operation and maintenance, no addition of chemicals, no wastewater discharge, and no pollution to the environment, and is suitable for the treatment of desalted water in thermal power plants. By adding an ultraviolet water treatment device behind the reverse osmosis device in the boiler feed water production system of a thermal power plant, the TOC content in the boiler feed water is reduced, ensuring that the TOC content in the boiler feed water meets the water quality requirements of the desalted water required for the boiler feed water, so as to prevent the organic matter in the feed water from being decomposed into organic acids under high temperature and high pressure, thereby preventing the corrosion of the boiler heating surface and the flow passage of the steam turbine.

[0072] According to the method for treating total organic carbon in desalted water proposed in the embodiment of the present application, the ultraviolet irradiation parameters are flexibly adjusted according to the actual water flow conditions to ensure that the best organic matter degradation effect can be achieved under different flow conditions. Dynamic adjustment of the working parameters of the ultraviolet lamp helps to avoid energy waste and extend the service life of the lamp, thereby reducing operating costs. By precisely controlling the ultraviolet irradiation conditions, unnecessary high-intensity irradiation time can be reduced to achieve the purpose of energy conservation and emission reduction; real-time monitoring and automatic adjustment mechanisms enable the ultraviolet treatment device to adapt to a wider range of water quality changes. Whether facing a sudden increase in flow or deterioration in water quality, the system can self-adjust to maintain a stable treatment effect, enhancing the reliability and flexibility of the overall operation; precise control of ultraviolet irradiation parameters not only improves treatment efficiency, but also ensures the consistency of effluent water quality, which is crucial for maintaining high standards for boiler feed water and preventing problems such as equipment corrosion due to water quality fluctuations.

[0073] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or N embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0074] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this application, "N" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0075] Any process or method description in a flowchart or otherwise described herein may be understood to represent a module, fragment or portion of code comprising one or N executable instructions for implementing a custom logical function or process step, and the scope of the preferred embodiments of the present application includes alternative implementations in which functions may be performed in a different order than shown or discussed, including performing functions in a substantially simultaneous manner or in a reverse order depending on the functions involved, which should be understood by those skilled in the art to which the embodiments of the present application pertain.

[0076] It should be understood that various parts of the present application can be implemented using hardware, software, firmware, or a combination thereof. In the above embodiment, the N steps or methods can be implemented using software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented using hardware, as in another embodiment, it can be implemented using any one or a combination of the following technologies known in the art: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application-specific integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0077] Those skilled in the art will understand that all or part of the steps in the method of the above embodiment can be completed by instructing related hardware through a program, and the program can be stored in a computer-readable storage medium. When the program is executed, it includes one or a combination of the steps of the method embodiment.

Claims

1. An ultraviolet water treatment device, characterized in that: include: device body; An ultraviolet device disposed inside the device body, for emitting ultraviolet rays of a target wavelength; A monitoring component provided at the water inlet and outlet of the device body, for monitoring multiple water parameters at the inlet and outlet; A control device in communication with the ultraviolet device and the monitoring assembly is used to adjust the operating parameters of the ultraviolet device according to multiple water parameters at the inlet and outlet.

2. The ultraviolet water treatment device according to claim 1, characterized in that The monitoring components include: a flow sensor, a total organic carbon content analyzer, a conductivity meter and an inlet turbidity sensor, wherein: The flow sensor and the inlet turbidity sensor are provided at the water inlet, and are used to monitor the water flow and the inlet turbidity at the water inlet respectively; The total organic carbon content analyzer provided at the water inlet and outlet is used to monitor the organic carbon content of the water quality at the water inlet and outlet; The conductivity meter arranged at the water outlet is used to monitor the water conductivity at the water outlet.

3. The ultraviolet water treatment device according to claim 2, characterized in that The control module is used to adjust the irradiation parameters of the ultraviolet lamp according to the organic carbon content when it is identified that the turbidity of the influent water exceeds a preset threshold.

4. The ultraviolet water treatment device according to claim 2, characterized in that The control module is further used to adjust the ultraviolet intensity and reflection times in the ultraviolet lamp according to the water inlet flow rate.

5. The ultraviolet water treatment device according to claim 2, characterized in that: The control module is further used to: analyze the current water quality according to the water conductivity and total organic carbon content of the water outlet to generate a water quality report, and feed back the water quality report to the target device.

6. The ultraviolet water treatment device according to claim 1, characterized in that The reflectivity of the inner wall material of the device body is greater than a preset reflectivity.

7. A device for treating total organic carbon in desalted water, characterized in that: include: Desalted water tanks in thermal power plants, used to store pre-treated desalted water; Desalted water pump, used to pressurize and transport desalted water from the water tank to the UV water treatment device; The ultraviolet water treatment device according to any one of claims 1 to 6, which is used to degrade small molecular organic matter into carbon dioxide and water by using ultraviolet light; The unit feed water tank is used to store high-quality desalted water after final treatment and is directly used as boiler feed water.

8. A method for treating total organic carbon in desalted water, characterized in that: The method utilizes the device for treating total organic carbon in desalted water according to claim 7 to achieve organic carbon treatment, wherein the method comprises the following steps: Obtain the water flow rate, inlet turbidity and total organic carbon content of the ultraviolet water treatment device inlet; Adjusting the ultraviolet intensity and reflection times in the ultraviolet lamp according to the water inlet flow rate; When it is identified that the turbidity of the influent exceeds the preset threshold, the irradiation parameters of the ultraviolet lamp are adjusted according to the total organic carbon content.

9. The method for treating total organic carbon in desalted water according to claim 8, characterized in that: Before adjusting the irradiation parameters of the ultraviolet lamp according to the total organic carbon content, the method further includes: Generate alarm information and upload it to the target device.

10. The method for treating total organic carbon in desalted water according to claim 8, characterized in that: Also includes: Obtain water conductivity and total organic carbon content at the outlet; Analyze the current water quality based on the water conductivity and total organic carbon content at the outlet; A water quality report is generated according to the current water quality, and the water quality report is sent to a target device.

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