Power plant boiler water treatment application method and system based on WTC reverse osmosis technology

Abstract

The invention discloses a power plant boiler water treatment application method and system based on a WTC reverse osmosis process. The method comprises the following steps: constructing a WTC reverse osmosis process concentrated water treatment system architecture; collecting a plurality of groups of concentrated water based on big data for detection and analysis, obtaining various ion concentrations, organic matter contents, microbe quantity and activity data parameters, and constructing a concentrated water quality analysis data set; constructing a local concentrated water information database, comparing the local concentrated water information database with data parameters in a concentrated water quality analysis data set, screening to obtain differentiated water quality parameters, and determining an expected processing target; according to an expected treatment target, the type selection and arrangement scheme of special membrane elements are determined, a WTC reverse osmosis process concentrated water treatment system architecture is correspondingly planned, the expected treatment target is monitored, regulated and controlled, and a regulation and control result is recorded in real time so as to adaptively adjust the expected treatment target. The technical problems that in the prior art, due to water quality difference, a membrane element is low in anti-pollution capacity, prone to blockage and short in service life are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of power plant wastewater treatment, and in particular to an application method and system for power plant boiler water treatment based on a WTC reverse osmosis process. Background Art

[0002] During the operation of the power plant, the traditional process has defects in the utilization of water resources. The large amount of concentrated water produced by reverse osmosis contains high concentrations of salt, organic matter and impurities, and direct discharge causes water resource waste and environmental pollution. With the development of technology, people have invented a circulation method of further reverse osmosis treatment of concentrated water to obtain usable produced water. The reuse of produced water improves the utilization rate of water resources and greatly reduces the discharge of concentrated water, realizing the requirements of "water saving and water purification" in the "Ten Water Regulations" at the same time, which can solve the dilemma of system water production expansion and concentrated water reduction.

[0003] However, the existing secondary reverse osmosis process still has some problems. Given that the quality of brine from different power plants and at different times in the same power plant may vary significantly, its water quality characteristics are complex and changeable. The non-isotropic retention of various salts in the reverse osmosis process causes the scaling characteristics to change and increases the risk of scaling. The organic matter and scale inhibitors in the raw water are concentrated in large quantities during the primary reverse osmosis treatment process, which further deteriorates the quality of the brine. This complex and changeable water quality condition makes it difficult for conventional brine reverse osmosis systems to adapt effectively, greatly limiting the widespread application of brine reuse technology. Due to the inability to accurately treat specific water quality conditions, some local thermal power plants have to shorten the chemical cleaning cycle and perform chemical cleaning frequently. This not only accelerates the loss of membrane elements and shortens their service life, but also leads to a significant increase in operation and maintenance costs, seriously restricting the efficient application and promotion of brine reuse technology in power plants. Summary of the invention

[0004] To this end, the present invention provides an application method and system for power plant boiler water treatment based on the WTC reverse osmosis process to solve the technical problems in the prior art of low anti-pollution ability of membrane elements, easy clogging, frequent chemical cleaning and short life due to water quality differences in the reverse osmosis process of power plant boiler water.

[0005] In order to achieve the above object, the present invention provides the following technical solutions:

[0006] A method for treating boiler water in a power plant based on a WTC reverse osmosis process comprises the following steps:

[0007] Construct the WTC reverse osmosis process concentrated water treatment system architecture;

[0008] Based on big data, several groups of concentrated water were collected for detection and analysis to obtain various ion concentrations, organic matter content, microbial quantity and activity data parameters, and to construct a concentrated water quality analysis data set;

[0009] Build a local concentrated water information database, match and compare the data parameters with those in the concentrated water quality analysis data set, screen out differentiated water quality parameters, and determine the expected treatment targets;

[0010] According to the expected treatment target, the selection of special membrane elements and their arrangement scheme are determined, and the WTC reverse osmosis process concentrate treatment system architecture is planned accordingly. Data parameters are monitored and regulated for the expected treatment target, and the regulation results are recorded in real time to adaptively adjust the expected treatment target.

[0011] On the basis of the above technical solution, the present invention is further described as follows:

[0012] As a further embodiment of the present invention,

[0013] The WTC reverse osmosis process concentrated water treatment system architecture specifically includes:

[0014] A membrane element structure, comprising a porous central tube and a membrane assembly wound around the outer side of the porous central tube, wherein the membrane assembly comprises a separation membrane, the separation membrane is provided with a coating, and the coating is provided with a buffer portion;

[0015] The cleaning supply structure includes a backwashing part and a gas energy supply component, wherein the backwashing part is sleeved in the circumferential positioning area of ​​the outer cylindrical surface of the porous central tube, and the backwashing part is correspondingly arranged with the injection coupling of the buffer part, a counter-punching hole is arranged on the backwashing part, and the gas energy supply component is connected to the backwashing part;

[0016] The detection structure is electrically connected to the cleaning and supply structure and is used to detect the pressure and flow rate before and after the membrane element structure corresponding to the concentrated water treatment state.

[0017] As a further embodiment of the present invention,

[0018] The WTC reverse osmosis process concentrated water treatment system architecture specifically includes:

[0019] The buffer portion is provided with a slow-flow protrusion extending along the side of the separation membrane;

[0020] The extension path of the slow-flow protrusion is consistent with the direction of the separation membrane sheet surrounding the porous central tube.

[0021] As a further embodiment of the present invention,

[0022] The WTC reverse osmosis process concentrated water treatment system architecture specifically includes:

[0023] The buffer portion is also provided with a plurality of guide strip-shaped protrusions;

[0024] The guide strip-shaped protrusions are arranged in an array along the extension direction of the slow-flow protrusions, and the extension direction of the guide strip-shaped protrusions and the extension direction of the slow-flow protrusions are perpendicular to each other.

[0025] As a further embodiment of the present invention,

[0026] The WTC reverse osmosis process concentrated water treatment system architecture specifically includes:

[0027] The two ends of the porous central tube are respectively provided with a first end plate and a second end plate in one-to-one correspondence;

[0028] The backwashing member is arranged on the inner side of the first end plate;

[0029] The buffer portion is disposed at an end portion of the separation membrane close to the first end plate.

[0030] As a further embodiment of the present invention,

[0031] The WTC reverse osmosis process concentrated water treatment system architecture specifically includes:

[0032] The backwashing member is configured as an annular geometric body having a hollow structure;

[0033] The counter-punching holes are arranged on the outer peripheral part of the backwashing member, and the backwashing member is provided with a first counter-joint connected with the gas energy supply component;

[0034] The porous central tube is provided with a limiting ring groove which is nested and positioned with the inner ring of the backwashing component.

[0035] As a further embodiment of the present invention,

[0036] The WTC reverse osmosis process concentrated water treatment system architecture specifically includes:

[0037] A concentrate water transport membrane shell tube, wherein the middle of the concentrate water transport membrane shell tube is provided with a channel for placing the membrane element structure, and the concentrate water transport membrane shell tube is provided with a concentrate water outlet, a concentrate water inlet, a produced water outlet and a sealing port;

[0038] The backwashing member is also provided with a second pair of joints;

[0039] The first end plate and the second end plate are respectively provided with a first joint extension opening and a second joint extension opening in a one-to-one correspondence, and the first joint extension opening and the second joint extension opening are used for the first pair of joints and the second pair of joints to extend therein;

[0040] The membrane element structure is arranged as at least one group, and the membrane element structure is sequentially arranged in the concentrated water transport membrane shell tube;

[0041] The second pair of joints are butt-jointed with the first pair of joints, the second pair of joints are extended to the second joint extension opening through the extension pipe, and the second pair of joints are butt-jointed with the sealing opening in a sealing manner.

[0042] As a further embodiment of the present invention,

[0043] The WTC reverse osmosis process concentrated water treatment system architecture specifically includes:

[0044] The first end plate and the second end plate are both provided with limiting protrusions;

[0045] The inner wall of the concentrated water transport membrane shell tube is provided with a limiting sliding groove which is positioned and matched with the limiting protrusion.

[0046] As a further embodiment of the present invention,

[0047] The guide strip-shaped protrusions are in a wavy line shape, and part of the guide strip-shaped protrusions are arranged to intersect with the slow-flow protrusions.

[0048] A power plant boiler water treatment system according to the above-mentioned power plant boiler water treatment application method based on the WTC reverse osmosis process, the power plant boiler water treatment system comprises:

[0049] System construction control module, used to build the WTC reverse osmosis process concentrated water treatment system architecture;

[0050] The concentrated water big data collection module is used to collect several groups of concentrated water for detection and analysis based on big data, obtain various ion concentrations, organic matter content, microbial quantity and activity data parameters, and construct a concentrated water quality analysis data set;

[0051] The local concentrated water data analysis module is used to build a local concentrated water information database, and to screen out differentiated water quality parameters by matching and comparing with the data parameters in the concentrated water quality analysis data set, and to determine the expected treatment targets;

[0052] The brine treatment and planning module is used to determine the selection of special membrane elements and their arrangement scheme according to the expected treatment target, and plan the brine treatment system architecture of the WTC reverse osmosis process accordingly, monitor and control the data parameters for the expected treatment target, and record the control results in real time to adaptively adjust the expected treatment target.

[0053] The present invention has the following beneficial effects:

[0054] 1. The application method compares the brine quality analysis data set obtained by local database and big data collection, and uses differentiated water quality parameters to clarify the possible problems in the later brine treatment process and the parameter reasons in the brine that cause the problems. By constructing the brine treatment system architecture of the WTC reverse osmosis process, targeted planning is carried out for the brine to be treated, so that the corresponding membrane element type and arrangement can be accurately used, thereby reducing the possibility of problems and risks in the brine treatment process. At the same time, through the detection of targeted data parameters, the brine treatment system architecture of the WTC reverse osmosis process is quickly adjusted according to the data, which improves the timeliness of the brine treatment system architecture of the WTC reverse osmosis process, ensures the service life of the components in the brine treatment system architecture of the WTC reverse osmosis process, effectively improves the anti-pollution ability of the membrane element and the stability of the system, prolongs the service life of the membrane element, reduces the number of chemical cleaning times, and reduces the operation and maintenance costs, thereby promoting the efficient application of brine reuse technology in power plants.

[0055] 2. The device can provide a coating on the separation membrane, which can not only enhance the tolerance of the membrane element to specific chemicals, but also reduce the accumulation of static electricity on the membrane surface, prevent static electricity from adsorbing pollutants such as dust and impurities, and reduce the risk of membrane contamination. The device can also use a cleaning supply structure to clean the membrane element structure, especially through the buffer portion provided in the membrane element. The relatively slower flow rate can be used to concentrate the debris that should be evenly distributed on the membrane assembly in the buffer region, and the residues can be concentrated through the punching holes to avoid a large amount of debris from being retained on the separation membrane. Since the cleaning effect is mainly concentrated in the slow flow rate area, it not only reduces unnecessary cleaning impact on the entire membrane element, but also helps to protect other parts of the membrane element structure, further reducing the damage to the membrane element structure and performance caused by frequent cleaning or severe contamination, significantly extending the overall service life of the device and improving the overall functional practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0056] In order to more clearly illustrate the implementation mode of the present invention or the technical solution in the prior art, the drawings required for the implementation mode or the description of the prior art will be briefly introduced below. The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0057] Figure 1 The present invention provides an overall flow chart of a method for treating boiler water in a power plant based on a WTC reverse osmosis process.

[0058] Figure 2 One of the schematic diagrams of the membrane element structure of the WTC reverse osmosis process concentrated water treatment system architecture in the power plant boiler water treatment application method based on the WTC reverse osmosis process provided in an embodiment of the present invention.

[0059] Figure 3 A schematic diagram of the position structure of the buffer part of the WTC reverse osmosis process concentrated water treatment system architecture in the power plant boiler water treatment application method based on the WTC reverse osmosis process provided by an embodiment of the present invention.

[0060] Figure 4 A schematic diagram of the air intake control function principle of the WTC reverse osmosis process concentrated water treatment system architecture in the power plant boiler water treatment application method based on the WTC reverse osmosis process provided in an embodiment of the present invention.

[0061] Figure 5 The second schematic diagram of the membrane element structure of the WTC reverse osmosis process concentrated water treatment system architecture in the power plant boiler water treatment application method based on the WTC reverse osmosis process provided in an embodiment of the present invention.

[0062] Figure 6 The third schematic diagram of the membrane element structure of the WTC reverse osmosis process concentrated water treatment system architecture in the power plant boiler water treatment application method based on the WTC reverse osmosis process provided in an embodiment of the present invention.

[0063] Figure 7 The present invention provides a schematic diagram of the assembly structure of the membrane element structure of the WTC reverse osmosis process concentrate water treatment system architecture corresponding to the concentrate water transport membrane shell and tube in the power plant boiler water treatment application method based on the WTC reverse osmosis process provided by the embodiment of the present invention.

[0064] Figure 8 The application method and system of power plant boiler water treatment based on WTC reverse osmosis process provided by the embodiment of the present invention are Figure 7 A magnified view of the local structure at point A.

[0065] Fig. 9 The figure is a schematic diagram of the physical structure of an electronic device according to an embodiment of the present invention.

[0066] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0067] 1- membrane element structure: 11- porous central tube, 111- first end plate, 1111- first joint extension, 112- second end plate, 1121- second joint extension, 113- long hole, 114- limiting ring groove, 12- separation membrane, 13- flow guide grid, 14- water production grid, 15- coating, 16- buffer part, 161- slow flow protrusion, 162- flow guide strip protrusion, 17- limiting protrusion;

[0068] 2-cleaning supply structure: 21-backwashing part, 211-punching hole, 212-first pair of joints, 213-second pair of joints, 214-extension pipeline, 22-air compressor, 23-inflation control system;

[0069] 3-Detection system structure: 31-first temperature detection element, 32-first pressure detection element, 33-second pressure detection element, 34-third pressure detection element, 35-first flow detection element, 36-second flow detection element;

[0070] 4-concentrated water transport membrane shell tube: 41-concentrated water outlet, 42-concentrated water inlet, 43-product water outlet, 44-sealing port, 45-limiting slide;

[0071] 70-Electronic device: 701-Processor, 702-Memory, 703-Internal bus. DETAILED DESCRIPTION

[0072] The following is a description of the implementation of the present invention by specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0073] The terms such as "upper", "lower", "left", "right", and "middle" used in this specification are only for the convenience of description and are not intended to limit the scope of the invention. Changes or adjustments to their relative relationships should be regarded as within the scope of the invention without substantially changing the technical content.

[0074] like Figures 1 to 9 As shown, the embodiment of the present invention provides a power plant boiler water treatment application method based on the WTC reverse osmosis process, comprising the following steps:

[0075] S1: Build the WTC reverse osmosis process brine treatment system architecture to treat brine with different parameters in power plant boilers, so as to flexibly respond to different water treatment needs;

[0076] The specific process is:

[0077] Please refer to Figures 2 to 8The WTC reverse osmosis process concentrated water treatment system architecture includes a membrane element structure 1, a cleaning supply structure 2 and a detection structure 3, which can be used to clean the membrane element structure 1 through the cleaning supply structure 2, especially through the buffer part 16 set in the membrane element structure 1, using a relatively slower flow rate, the debris that should be evenly distributed on the membrane assembly is more concentrated in the buffer part 16, and the residue is further concentrated through the punching hole 211 to avoid a large amount of debris from being retained in the separation membrane 12. Since the cleaning effect is mainly concentrated in the slow flow rate area, it not only reduces the unnecessary cleaning impact on the entire membrane element, but also helps to protect other parts of the membrane element structure 1, and further reduces the damage to the membrane element structure 1 and performance caused by frequent cleaning or severe pollution, significantly extending the overall service life of the device and improving the overall functional practicality. The specific settings are as follows:

[0078] Please refer to Figure 2 and Figure 3 The membrane element structure 1 includes a porous central tube 11 and a membrane assembly wound around the outer side of the porous central tube 11, wherein the porous central tube 11 is configured as a hollow circular tube body, and a plurality of water production holes are provided on the circular side of the porous central tube 11, so as to allow the produced water to enter the porous central tube 11 through the water production holes and be discharged; the membrane assembly includes a separation membrane 12, a flow guide grid 13 is provided between two separation membranes 12, a water production grid 14 is provided on the innermost separation membrane 12, and the separation membrane 12 is wound around the porous central tube 11; please continue to refer to Figure 3 At least one side of the outer surface of the separation membrane 12 is provided with a coating 15. According to the actual concentrated water situation, when treating concentrated water with different parameter data, a coating including but not limited to polydopamine, polyvinyl alcohol or some composite coatings can be fixed on the outer surface of the separation membrane 12 to enhance the tolerance of the separation membrane 12 to specific chemical substances. At the same time, by increasing the static electricity accumulation on the surface of the separation membrane 12, it is used to effectively prevent static electricity from adsorbing pollutants such as dust and impurities, thereby reducing the contamination risk of the separation membrane 12.

[0079] Please continue to refer to Figure 3The coating 15 is provided with a buffer portion 16. Specifically, the buffer portion 16 includes a slow-flow protrusion 161 along the side of the separation membrane 12. The extension direction of the slow-flow protrusion 161 is consistent with the winding direction of the separation membrane 12. The separation membrane 12 is wound around the outer side of the porous central tube 11 to form a guide channel, which is blocked in the guide channel by the slow-flow protrusion 161 to form a narrower guide channel at the protrusion of the slow-flow protrusion 161, forming a buffer area with a lower concentrated water flow rate. The lower flow rate in the buffer portion 16 area increases the contact area and contact time between the concentrated water and the separation membrane 12, so that more pollutants are retained near the slow-flow protrusion 161. Compared with other places of the separation membrane 12, the pollutants will be concentrated at the slow-flow protrusion 161, which is convenient for centralized treatment through the cleaning supply structure 2, thereby improving the pollutant treatment efficiency.

[0080] Please refer to Figure 4 The cleaning supply structure 2 includes a backwashing component 21 and an air supply component. The air supply component includes an air compressor 22 and an inflation control system 23. The inflation control system 23 can use but is not limited to PLC to control the opening and closing of the air compressor 22 and the flushing pressure of the gas; the inflation control system 23 is connected to the detection system structure 3, and the detection system structure 3 is used to detect the pressure and flow before and after the membrane element. The real-time internal pressure of the membrane element structure 1 is obtained through the detection system structure 3 to avoid excessive pressure or too long flushing time, which may cause damage to the separation membrane 12 and ensure the service life of the separation membrane 12.

[0081] Please refer to Figure 4 and Figure 5 The backwashing member 21 is located at the outer peripheral part of the porous central tube 11, and the backwashing member 21 corresponds to the buffer part 16. The backwashing member 21 is a hollow annular body. The porous central tube 11 is provided with a limiting ring groove 114 that cooperates with the inner ring of the backwashing member 21. The outer ring of the backwashing member 21 is provided with a counter-punch hole 211. The backwashing member 21 is provided with a first pair of joints 212 connected to the gas energy supply component. The gas energy supply component is connected to the counter-punch member through the first pair of joints 212 to discharge the flushing gas from the counter-punch hole 211 of the backwashing member 21 to the buffer part 16. The pollutants in the buffer part 16 are separated from the separation membrane 12 under the impact of the gas and continue to flow along the backflow channel, so that the pollutants on the separation membrane 12 are reduced, the membrane flux of the separation membrane 12 is guaranteed, the cleaning frequency of chemical cleaning is reduced, and the service life of the separation membrane 12 is further guaranteed.

[0082] As a preferred solution of this embodiment, please continue to refer to Figure 3The buffer portion 16 also includes a plurality of guide strip-shaped protrusions 162, which are arranged in an array along the extension direction of the slow-flow protrusion 161, and the extension direction of the guide strip-shaped protrusions 162 is perpendicular to the extension direction of the slow-flow protrusions 161. The guide strip-shaped protrusions 162 are in the shape of a wavy line, and part of the guide strip-shaped protrusions 162 are intersected with the slow-flow protrusions 161. The guide strip-shaped protrusions 162 are used to slow down the concentrated water flowing along the winding direction of the separation membrane 12, thereby improving the interception efficiency of the buffer portion 16 for pollutants in the concentrated water, improving the ability of the buffer portion 16 to intercept pollutants, achieving a high concentration of pollutants, and increasing the centralized processing capacity of the cleaning supply structure 2.

[0083] As a preferred solution of this embodiment, please continue to refer to Figure 5 The two ends of the porous central tube 11 are respectively provided with a first end plate 111 and a second end plate 112 corresponding to each other. A backwashing component 21 is provided on the inner side of the first end plate 111. The buffer portion 16 is provided at one end of the separation membrane 12 close to the first end plate 111. The first end plate 111 and the second end plate 112 are both circular plates, and the first end plate 111 and the second end plate 112 are provided with a guide grid and a center hole for the porous central tube 11 to pass through, so as to achieve uniform distribution of concentrated water into the flow channel entering the membrane element. By setting the buffer portion 16 at the end of the concentrated water flow, the influence of the buffer portion 16 on the overall flow velocity of the concentrated water is reduced, the flow velocity of the concentrated water in the membrane element is guaranteed, and the blockage rate of pollutants is reduced.

[0084] As a preferred solution of this embodiment, please refer to Figure 6 , Figure 7 and Figure 8The WTC reverse osmosis process concentrate treatment system architecture also includes a concentrate transport membrane shell tube 4, a channel for inserting a membrane element structure 1 is provided in the middle of the concentrate transport membrane shell tube 4, a concentrate outlet 41 for concentrate to flow out of the concentrate transport membrane shell tube 4, a concentrate inlet 42 for concentrate to enter the concentrate transport membrane shell tube 4, a water production outlet 43 connected to the hole center tube 11 and a sealing port 44 for preventing concentrate from entering the backwashing part 21; the first end plate 111 is provided with a first joint extension port 1111, and the first joint extension port 1111 is provided for the first pair of joints 212 to extend. The second end plate 112 is provided with a second joint extension port 1121, and the backwash component 21 is also provided with a second pair of joints 213, and the second pair of joints 213 extend to the second joint extension port 1121 through an extension pipe 214. In this embodiment, the porous central tube 11 is provided with a plurality of long holes 113 extending from the backwash component 21 to the second end plate 112, and the long holes 113 are used for the extension pipe 214 to extend to the second joint extension port 1121. While avoiding the extension pipe 214 from changing the outer diameter and shape of the porous central tube 11, it also replaces the water production hole of the porous central tube 11 to achieve the function of water production entering.

[0085] The membrane element structure 1 is at least one group, and the membrane element structures 1 are arranged in sequence in the concentrated water transport membrane shell tube 4. The separation membrane sheet 12 in each membrane element structure 1 can adopt a coating 15 of different materials to deal with the scenario where the concentrated water contains multiple different parameters; wherein, the second pair of joints 213 on the innermost membrane element structure 1 is sealed and docked with the sealing port 44, the first pair of joints 212 on the innermost membrane element structure 1 is docked with the first pair of joints 212 on the adjacent membrane element, the second pair of joints 213 on the adjacent membrane element structures 1 are docked with the first pair of joints 212 on the adjacent membrane element at the rear in sequence, the porous central tubes 11 on the adjacent membrane element structures 1 are docked, the membrane element structures 1 are docked with each other, the first pair of joints 212 on the outermost membrane element structure 1 is connected with the cleaning supply structure 2, and a longer reverse osmosis structure is formed by connecting multiple membrane element structures 1 to increase the reverse osmosis effect on concentrated water, thereby further improving the treatment effect of the device on concentrated water.

[0086] Please refer to Figure 8 The first end plate 111 and the second end plate 112 are both provided with a limiting protrusion 17, and the inner wall of the concentrated water transport membrane shell tube 4 is provided with a limiting slide groove 45 that cooperates with the limiting protrusion 17. Through the cooperation of the limiting protrusion 17 and the limiting slide groove 45, the angle of each membrane element structure 1 placed in the concentrated water transport membrane shell tube 4 is achieved, thereby ensuring the front and rear membrane element structures 1, and ensuring the overall stability of the device.

[0087] Please refer to Figure 7 and Figure 8 The detection system structure 3 includes a first temperature detection element 31, a first pressure detection element 32, a second pressure detection element 33, a third pressure detection element 34, a first flow detection element 35 and a second flow detection element 36; wherein the first temperature detection element 31 is arranged in the concentrated water transport membrane shell tube 4 to ensure that the concentrated water transport membrane shell tube 4 is always in a suitable range to avoid affecting the service life of the membrane element and the characteristics of the concentrated water; the first pressure detection element 32 is arranged at the concentrated water inlet 42, the second pressure detection element 33 is arranged at the concentrated water outlet 41, the third pressure detection element 34 is arranged at the produced water outlet 43, the first flow detection element Component 35 is arranged at the concentrated water inlet 42, and the second flow detection component 36 is arranged at the concentrated water inlet 42; by detecting the pressure and flow rate before and after the concentrated water transport membrane shell tube 4, and the pressure and flow rate before and after the membrane element, it is used to avoid the wear of the flow channel and the deposition of pollutants caused by excessive pressure or too low pressure. The pressure difference and flow rate difference passing through the front and rear ends of the membrane element are detected by the detection system structure 3. After the pressure difference and flow rate difference reach the preset opening value, the cleaning supply structure 2 flushes the buffer part 16 with gas through the flushing hole on the backwash component 21. After the pressure difference and flow rate difference reach the preset closing value, the cleaning supply structure 2 closes the flushing of the buffer part 16.

[0088] S2: Based on big data, several groups of brine are collected for detection and analysis to obtain various ion concentrations, organic matter content, microbial quantity and activity data parameters, and a brine quality analysis data set is constructed. The brine quality analysis data set processes the obtained data parameters, and statistically analyzes the brine data parameters that have problems in the brine treatment process and the brine data parameters that have not caused problems. After statistical integration, the data parameters of brine with problems such as increased scaling risk and easy pollution are obtained.

[0089] S3: Build a local brine information database, use water quality testing instruments to obtain the data parameters of the local power plant boiler brine, and screen out differentiated water quality parameters by matching and comparing with the data parameters in the brine quality analysis data set, determine the expected treatment target, and thus obtain the main causes of problems that may occur in the brine to be treated, including but not limited to the detection of high concentrations of calcium and magnesium ions, indicating a sharp increase in scaling risk;

[0090] S4: According to the expected treatment target, determine the selection of special membrane elements and their arrangement scheme, and plan the WTC reverse osmosis process concentrated water treatment system architecture accordingly, monitor and control the data parameters for the expected treatment target, and record the control results in real time to adaptively adjust the expected treatment target;

[0091] By comparing the local database with the brine quality analysis data set obtained through big data collection, the differentiated water quality parameters are used to identify possible problems in the later brine treatment process and the parameter reasons in the brine that cause the problems. By building the brine treatment system architecture of the WTC reverse osmosis process, targeted planning is carried out for the brine to be treated, so that the corresponding membrane element types and arrangements can be accurately used, thereby reducing the possibility of problems and risks in the brine treatment process. At the same time, through the detection of targeted data parameters, the brine treatment system architecture of the WTC reverse osmosis process can be quickly adjusted according to the data, thereby improving the timeliness of the brine treatment system architecture of the WTC reverse osmosis process, ensuring the service life of the components in the brine treatment system architecture of the WTC reverse osmosis process, and significantly reducing the operation and maintenance costs.

[0092] The embodiment of the present invention further provides a power plant boiler water treatment system according to the above-mentioned power plant boiler water treatment application method based on the WTC reverse osmosis process, specifically comprising:

[0093] System construction control module, used to build the WTC reverse osmosis process concentrated water treatment system architecture;

[0094] The concentrated water big data collection module is used to collect several groups of concentrated water for detection and analysis based on big data, obtain various ion concentrations, organic matter content, microbial quantity and activity data parameters, and construct a concentrated water quality analysis data set;

[0095] The local concentrated water data analysis module is used to build a local concentrated water information database, and to screen out differentiated water quality parameters by matching and comparing with the data parameters in the concentrated water quality analysis data set, and to determine the expected treatment targets;

[0096] The brine treatment and planning module is used to determine the selection of special membrane elements and their arrangement scheme according to the expected treatment target, and plan the brine treatment system architecture of the WTC reverse osmosis process accordingly, monitor and control the data parameters for the expected treatment target, and record the control results in real time to adaptively adjust the expected treatment target.

[0097] Fig. 9 FIG. 1 is a schematic diagram of the physical structure of an electronic device according to an embodiment of the present invention. Fig. 9 As shown, the electronic device 70 includes: a processor 701 (processor), a memory 702 (memory) and an internal bus 703; wherein the processor 701 and the memory 702 communicate with each other through the internal bus 703;

[0098] The processor 701 is used to call the program instructions in the memory 702 to execute the methods provided by the above-mentioned method embodiments, for example, including: constructing a WTC reverse osmosis process brine treatment system architecture; collecting a number of groups of brine based on big data for detection and analysis, obtaining various ion concentrations, organic matter content, microbial quantity and activity data parameters, and constructing a brine water quality analysis data set; constructing a local brine information database, and screening differentiated water quality parameters by matching and comparing with the data parameters in the brine water quality analysis data set to determine the expected treatment target; according to the expected treatment target, determining the selection of special membrane elements and their arrangement scheme, and planning the WTC reverse osmosis process brine treatment system architecture accordingly, monitoring and regulating the data parameters for the expected treatment target, and recording the regulation results in real time to adaptively adjust the expected treatment target.

[0099] The present embodiment provides a non-transitory computer-readable storage medium, which stores computer instructions. The computer instructions enable the computer to execute the methods provided by the above-mentioned method embodiments, for example, including: constructing a WTC reverse osmosis process brine treatment system architecture; collecting a number of groups of brine based on big data for detection and analysis, obtaining various ion concentrations, organic matter content, microbial quantity and activity data parameters, and constructing a brine water quality analysis data set; constructing a local brine information database, and screening differentiated water quality parameters by matching and comparing with the data parameters in the brine water quality analysis data set to determine the expected treatment target; according to the expected treatment target, determining the selection of special membrane elements and their arrangement scheme, and planning the WTC reverse osmosis process brine treatment system architecture accordingly, monitoring and regulating the data parameters for the expected treatment target, and recording the regulation results in real time to adaptively adjust the expected treatment target.

[0100] A person skilled in the art can understand that all or part of the steps of implementing the above method embodiment can be completed by hardware related to program instructions, and the aforementioned program can be stored in a computer-readable storage medium. When the program is executed, it executes the steps of the above method embodiment; and the aforementioned storage medium includes: ROM, RAM, magnetic disk or optical disk, etc., various storage media that can store program codes.

[0101] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, i.e., they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Those of ordinary skill in the art may understand and implement it without creative effort.

[0102] Through the description of the above implementation methods, those skilled in the art can clearly understand that each implementation method can be implemented by means of software plus a necessary general hardware platform, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solution is essentially or the part that contributes to the prior art can be embodied in the form of a software product, and the computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, a disk, an optical disk, etc., including a number of instructions for a computer device (which can be a server, or a network device, etc.) to execute the methods of each embodiment or some parts of the embodiment.

[0103] Although the present invention has been described in detail above by general description and specific embodiments, it is obvious to those skilled in the art that some modifications or improvements can be made on the basis of the present invention. Therefore, these modifications or improvements made on the basis of not departing from the spirit of the present invention all belong to the scope of protection claimed by the present invention.

Claims

1. A method for treating boiler water in a power plant based on WTC reverse osmosis process, characterized in that: The steps include: Construct the WTC reverse osmosis process concentrated water treatment system architecture; Based on big data, several groups of concentrated water were collected for detection and analysis to obtain various ion concentrations, organic matter content, microbial quantity and activity data parameters, and to construct a concentrated water quality analysis data set; Build a local concentrated water information database, match and compare the data parameters with those in the concentrated water quality analysis data set, screen out differentiated water quality parameters, and determine the expected treatment targets; According to the expected treatment target, the selection of special membrane elements and their arrangement scheme are determined, and the WTC reverse osmosis process concentrate treatment system architecture is planned accordingly. Data parameters are monitored and regulated for the expected treatment target, and the regulation results are recorded in real time to adaptively adjust the expected treatment target.

2. The power plant boiler water treatment application method based on the WTC reverse osmosis process according to claim 1 is characterized in that: The WTC reverse osmosis process concentrated water treatment system architecture specifically includes: A membrane element structure, comprising a porous central tube and a membrane assembly wound around the outer side of the porous central tube, wherein the membrane assembly comprises a separation membrane, the separation membrane is provided with a coating, and the coating is provided with a buffer portion; The cleaning supply structure includes a backwashing part and a gas energy supply component, wherein the backwashing part is sleeved in the circumferential positioning area of ​​the outer cylindrical surface of the porous central tube, and the backwashing part is correspondingly arranged with the injection coupling of the buffer part, a counter-punching hole is arranged on the backwashing part, and the gas energy supply component is connected to the backwashing part; The detection structure is electrically connected to the cleaning and supply structure and is used to detect the pressure and flow rate before and after the membrane element structure corresponding to the concentrated water treatment state.

3. The power plant boiler water treatment application method based on the WTC reverse osmosis process according to claim 2 is characterized in that: The WTC reverse osmosis process concentrated water treatment system architecture specifically includes: The buffer portion is provided with a slow-flow protrusion extending along the side of the separation membrane; The extension path of the slow-flow protrusion is consistent with the direction of the separation membrane sheet surrounding the porous central tube.

4. The power plant boiler water treatment application method based on the WTC reverse osmosis process according to claim 3 is characterized in that: The WTC reverse osmosis process concentrated water treatment system architecture specifically includes: The buffer portion is also provided with a plurality of guide strip-shaped protrusions; The guide strip-shaped protrusions are arranged in an array along the extension direction of the slow-flow protrusions, and the extension direction of the guide strip-shaped protrusions and the extension direction of the slow-flow protrusions are perpendicular to each other.

5. The power plant boiler water treatment application method based on the WTC reverse osmosis process according to claim 4 is characterized in that: The WTC reverse osmosis process concentrated water treatment system architecture specifically includes: The two ends of the porous central tube are respectively provided with a first end plate and a second end plate in one-to-one correspondence; The backwashing member is arranged on the inner side of the first end plate; The buffer portion is disposed at an end portion of the separation membrane close to the first end plate.

6. The power plant boiler water treatment application method based on the WTC reverse osmosis process according to claim 5 is characterized in that: The WTC reverse osmosis process concentrated water treatment system architecture specifically includes: The backwashing member is configured as an annular geometric body having a hollow structure; The counter-punching hole is arranged on the outer peripheral part of the backwashing member, and the backwashing member is provided with a first counter-joint connected with the gas energy supply component; The porous central tube is provided with a limiting ring groove which is nested and positioned with the inner ring of the backwashing component.

7. The power plant boiler water treatment application method based on the WTC reverse osmosis process according to claim 6 is characterized in that: The WTC reverse osmosis process concentrated water treatment system architecture specifically includes: A concentrate water transport membrane shell tube, wherein the middle of the concentrate water transport membrane shell tube is provided with a channel for placing the membrane element structure, and the concentrate water transport membrane shell tube is provided with a concentrate water outlet, a concentrate water inlet, a produced water outlet and a sealing port; The backwashing member is also provided with a second pair of joints; The first end plate and the second end plate are respectively provided with a first joint extension opening and a second joint extension opening in a one-to-one correspondence, and the first joint extension opening and the second joint extension opening are used for the first pair of joints and the second pair of joints to extend therein; The membrane element structure is arranged as at least one group, and the membrane element structure is sequentially arranged in the concentrated water transport membrane shell tube; The second pair of joints are butt-jointed with the first pair of joints, the second pair of joints are extended to the second joint extension opening through the extension pipe, and the second pair of joints are butt-jointed with the sealing opening in a sealing manner.

8. The power plant boiler water treatment application method based on the WTC reverse osmosis process according to claim 7 is characterized in that: The WTC reverse osmosis process concentrated water treatment system architecture specifically includes: The first end plate and the second end plate are both provided with limiting protrusions; The inner wall of the concentrated water transport membrane shell tube is provided with a limiting sliding groove which is positioned and matched with the limiting protrusion.

9. The power plant boiler water treatment application method based on WTC reverse osmosis process according to claim 7 is characterized in that: The WTC reverse osmosis process concentrated water treatment system architecture specifically includes: The guide strip-shaped protrusions are in a wavy line shape, and part of the guide strip-shaped protrusions are arranged to intersect with the slow-flow protrusions.

10. A power plant boiler water treatment system according to any one of claims 1 to 9 using the power plant boiler water treatment application method based on the WTC reverse osmosis process, characterized in that: The power plant boiler water treatment system comprises: System construction control module, used to build the WTC reverse osmosis process concentrated water treatment system architecture; The concentrated water big data collection module is used to collect several groups of concentrated water for detection and analysis based on big data, obtain various ion concentrations, organic matter content, microbial quantity and activity data parameters, and construct a concentrated water quality analysis data set; The local concentrated water data analysis module is used to build a local concentrated water information database, and to screen out differentiated water quality parameters by matching and comparing with the data parameters in the concentrated water quality analysis data set, and to determine the expected treatment targets; The brine treatment and planning module is used to determine the selection of special membrane elements and their arrangement scheme according to the expected treatment target, and plan the brine treatment system architecture of the WTC reverse osmosis process accordingly, monitor and control the data parameters for the expected treatment target, and record the control results in real time to adaptively adjust the expected treatment target.

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