Exhaust gas turbine cleaning sewage water quality determination method and system based on mass flow meter

Abstract

The application discloses a method and system for judging wastewater quality of exhaust turbine cleaning based on a mass flowmeter, which judges the actual reuse rate and the effluent quality of a physical water treatment process by setting the mass flowmeter after each treatment equipment in the treatment process, establishes the relationship model between the effluent quality of each water treatment equipment and the water quality value and the oil and sundry treatment rate, and derives the water quality value and the oil and sundry treatment rate according to the model, compares the water quality value and the oil and sundry treatment rate with the standard water quality value and the oil and sundry treatment rate set in advance, so as to judge whether the effluent quality reaches the reuse standard of cleaning the gas impeller, whether each water treatment device reaches the corresponding standard, and the treatment rate of each water treatment device.

Description

Technical Field

[0001] This invention relates to the field of water treatment technology, specifically to a method and system for determining the water quality of wastewater from exhaust gas turbine cleaning based on a mass flow meter. Background Technology

[0002] The dirt on the compressor impeller parts of marine turbochargers mainly consists of diesel oil stains and a small amount of carbon deposits. Shipyards typically use hot water to clean this type of equipment. To avoid polluting the working environment with wastewater after cleaning, most companies choose closed-loop cleaning, and therefore generally collect the generated wastewater. Thus, the quality of the generated wastewater and the quality of the hot water used can be easily obtained. Because it is a closed-loop cleaning system and the water treatment devices in the reuse system use physical treatment methods, without involving or requiring biological methods, the quality of the wastewater produced in the closed cleaning workshop, ignoring the small amount of water residue remaining in pipes and other parts, is equal to the sum of the quality of the clean water used for cleaning and the quality of the dirt rinsed away.

[0003] Currently, the determination of impurity removal rates for oily wastewater treatment devices is mostly conducted during the wastewater treatment process design phase. However, after prolonged operation, the actual treatment capacity of the equipment tends to decrease slightly, and the maintenance workload gradually increases. The current methods for determining the actual impurity removal rate of the device largely involve collecting effluent samples and sending them to relevant testing institutions to determine the effluent quality. A comprehensive evaluation is then conducted based on the water quality, the experience of maintenance personnel, and regular equipment inspections. This testing method is not only cumbersome and resource-intensive, but also lacks real-time accuracy.

[0004] Therefore, it is necessary to propose a method and system for determining the water quality of wastewater from exhaust gas turbine cleaning based on a mass flow meter in order to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing a method and system for determining the water quality of wastewater from exhaust turbine cleaning based on a mass flow meter. This solves the problems in existing technologies where the process for determining the water quality of wastewater from exhaust turbine cleaning after wastewater treatment is cumbersome, consumes manpower and resources, and cannot be determined in real time.

[0006] In a first aspect, the present invention provides a method for determining the water quality of wastewater from exhaust gas turbine cleaning based on a mass flow meter, comprising:

[0007] Step 1: Obtain the effluent quality data from each stage of the water treatment system collected by the mass flow meter. In this system, a mass flow meter is installed after each stage of the wastewater reuse system, the automatic mixer, and the clear water tank to measure the mass of the fluid flowing through it. The mass flow meter is installed upside down.

[0008] Step 2: Establish effluent quality standards for each level of water treatment system. With water quality value A relationship model was established to determine the effluent quality of water treatment devices at each level. With the unit's oil and waste removal rate Relationship model;

[0009] Step 3: Based on the effluent quality measured by each mass flow meter And the relational model determines the water quality value of the effluent. Oil and waste removal rate of the treatment device And based on water quality values The compliance status is controlled by the direction of the reclaimed water flow and the oil and impurity removal rate of the treatment unit. Determine the status of the equipment.

[0010] Furthermore, in step two, the wastewater treatment devices in the wastewater reuse system all employ physical treatment methods, and the measured effluent quality is used to represent the water quality value and the oil and impurity removal rate.

[0011] Furthermore, in step two, the effluent quality of each stage of the water treatment device is established. With water quality value The relationship model is as follows:

[0012] No. The relationship model between water quality values ​​and mass in a stage-level water treatment device is as follows: .

[0013] Furthermore, in step two, the effluent quality of each stage of the water treatment device is established. With the unit's oil and waste removal rate The relationship model is as follows:

[0014] No. Oil and impurity removal rate of the water treatment unit With quality The relationship model is as follows: With The overall oil and waste removal rate of the reuse system of the water treatment unit With quality The relationship model is as follows: .

[0015] Secondly, the present invention provides a wastewater quality determination system for exhaust gas turbine cleaning based on a mass flow meter, comprising: an intelligent control platform, a wastewater pretreatment system, a primary treatment system, a secondary treatment system, and a fluid transition tank, wherein the wastewater pretreatment system, the primary treatment system, the secondary treatment system, and the fluid transition tank are connected in sequence.

[0016] The wastewater pretreatment system includes an automatic mixer, a pretreatment system mass flow meter, and a pretreatment system water pump connected in sequence; the primary treatment system includes a water-oil-solid three-phase separator, a primary water treatment system mass flow meter, and a primary water treatment system water pump connected in sequence; the secondary treatment system includes a two-core bag filter, a secondary water treatment system mass flow meter, and a secondary water treatment system water pump connected in sequence; the intelligent control platform is communicatively connected to the pretreatment system mass flow meter, the primary water treatment system mass flow meter, and the secondary water treatment system mass flow meter; the pretreatment system mass flow meter, the primary water treatment system mass flow meter, and the secondary water treatment system mass flow meter are connected to a mass flow meter display screen.

[0017] The intelligent control platform is used to acquire the effluent quality of each stage of water treatment devices collected by the mass flow meter. In this system, a mass flow meter is installed after each stage of the wastewater reuse system, the automatic mixer, and the clear water tank to measure the mass of the fluid flowing through it. The mass flow meter is installed upside down. A system for determining the effluent quality of each stage of the water treatment process is established. With water quality value A relationship model was established to determine the effluent quality of water treatment devices at each level. With the unit's oil and waste removal rate The relationship model; based on the effluent quality measured by each mass flow meter And the system water quality values ​​for determining the effluent type. Oil and waste removal rate of the treatment device And based on water quality values The compliance status is controlled by the direction of the reclaimed water flow and the oil and impurity removal rate of the treatment unit. Determine the status of the equipment.

[0018] Furthermore, a first electric valve is installed in the pipeline between the automatic mixer and the pretreatment system mass flow meter; a second electric valve is installed in the pipeline between the pretreatment system mass flow meter and the pretreatment system water pump.

[0019] Furthermore, a third electric valve is installed in the pipeline between the water-oil-solid three-phase separator and the mass flow meter of the primary water treatment system; a fourth electric valve is installed in the pipeline between the mass flow meter of the primary water treatment system and the water pump of the primary water treatment system.

[0020] Furthermore, a fifth electric valve is installed in the pipeline between the two-core bag filter and the secondary water treatment system mass flow meter connected in sequence; a sixth electric valve is installed in the pipeline between the secondary water treatment system mass flow meter and the secondary water treatment system pump.

[0021] Furthermore, the pipeline between the secondary water treatment system mass flow meter and the secondary water treatment system pump is connected to the water-oil-solid three-phase separator via a reuse pipeline. A seventh electric valve, an eighth electric valve, and a ninth electric valve are sequentially installed on the reuse pipeline from the secondary water treatment system mass flow meter to the water-oil-solid three-phase separator.

[0022] Furthermore, the water-oil-solid three-phase separator includes a peristaltic pump bracket, a hose, and a peristaltic pump, wherein the peristaltic pump is mounted on the peristaltic pump bracket and the peristaltic pump is connected to the hose.

[0023] The present invention offers the following advantages: The wastewater quality assessment method and system based on a mass flow meter for exhaust turbine cleaning wastewater, provided by this invention, is particularly beneficial for wastewater reuse systems using only physical treatment methods for wastewater from closed-loop cleaning devices. This invention uses a mass flow meter to monitor the quality of the wastewater produced by the water treatment device in real time, and controls the flow direction through an established relationship model between the mass and the effluent quality, ensuring that the effluent quality meets reuse standards before reuse. This method boasts a high degree of automation and fast control speed, differing from conventional methods of effluent sampling for water quality assessment, making water quality assessment highly efficient and rapid, and reducing manpower. Furthermore, this invention improves the efficiency of water treatment device operation and maintenance. By quantifying the treatment rate of oil and impurities in the water using the mass flow meter measurement, it provides data support for maintenance personnel to assess the usage status of the water treatment device. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a flowchart of the wastewater quality determination method for exhaust gas turbine cleaning based on a mass flow meter according to the present invention.

[0026] Figure 2 This is a layout diagram of the mass flow meter in a recycled water treatment system;

[0027] Figure 3 This is a top view of a wastewater reuse system;

[0028] Figure 4 This is a 3D diagram of a wastewater reuse system;

[0029] Figure 5 This is a 3D diagram of a wastewater pretreatment system;

[0030] Figure 6 This is a 3D diagram of a primary processing system;

[0031] Figure 7 This is a detailed diagram of the oil outlet section of a water-oil-solid three-phase separator;

[0032] Figure 8 This is a 3D diagram of a two-stage processing system;

[0033] Figure 9 This is a 3D diagram of the circulating water treatment pipeline;

[0034] Figure 10 This is a schematic diagram of the mass flow meter's mass display screen.

[0035] Illustration Explanation: 1-Intelligent Control Platform; 2-Guardrail; 3-Wastewater Pretreatment System; 4-Primary Treatment System; 5-Secondary Treatment System; 6-Fluid Transfer Tank; 7-Automatic Agitator; 8-Pretreatment System Mass Flow Meter; 9-Pretreatment System Water Pump; 10-First Electric Valve; 11-Second Electric Valve; 12-Water-Oil-Solid Three-Phase Separator; 13-Primary Water Treatment System Mass Flow Meter; 14-Primary Water Treatment System Water Pump; 15-Third Electric Valve; 16-Fourth Electric Valve; 17-Peristaltic Pump Support; 18-Hose; 19-Peristaltic Pump; 20-Two-Core Bag Filter; 21-Secondary Water Treatment System Mass Flow Meter; 22-Secondary Water Treatment System Water Pump; 23-Fifth Electric Valve; 24-Sixth Electric Valve; 25-Seventh Electric Valve; 26-Eighth Electric Valve; 27-Ninth Electric Valve; 28-Reuse Pipeline; 29-Mass Flow Meter Display Screen. Detailed Implementation

[0036] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments. It should be pointed out that the following detailed description is illustrative and intended to provide further explanation of this application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0037] Please see Figures 1 to 10 This invention provides a method for determining the water quality of wastewater from exhaust gas turbine cleaning based on a mass flow meter, comprising:

[0038] Step 1: Obtain the effluent quality data from each stage of the water treatment system collected by the mass flow meter. In this system, a mass flow meter is installed after each stage of the wastewater reuse system, the automatic mixer, and the clear water tank to measure the mass of the fluid flowing through it. The mass flow meter is installed upside down.

[0039] Electric valves are installed on both sides of the mass flow meter to facilitate installation, zeroing, and other operations during actual operation. The settings of the electric valves can be adjusted according to the specific water treatment equipment.

[0040] The mass flow meter is installed upside down to record the mass of the solid-containing fluid flowing through it. This inverted installation is necessary because the water being treated in this embodiment contains carbon black and diesel fuel. For solid-containing fluids, the mass flow meter needs to be installed upside down to prevent solids from settling at the bottom of the meter if it were installed upright, which would lead to inaccurate measurements. Those skilled in the art can make adjustments based on the specific water quality of the fluid being treated.

[0041] Step 2: Establish effluent quality standards for each level of water treatment system. With water quality value A relationship model was established to determine the effluent quality of water treatment devices at each level. With the unit's oil and waste removal rate The relationship model.

[0042] The wastewater treatment devices in the wastewater reuse system all use physical treatment methods and do not involve chemical or biological methods. Therefore, the measured effluent quality can be used to represent the water quality value and the oil and impurity removal rate.

[0043] The following section, in conjunction with Table 1, provides a detailed explanation of the established relational model:

[0044]

[0045] (1) Establish a general relational model

[0046] A. Establish the first The effluent water quality value of the first-stage water treatment device With the Water quality of the first-stage water treatment unit Water purification quality Relationship model:

[0047]

[0048] B. Establish the first Oil and impurity removal rate of water treatment equipment With the Water quality of the first-stage water treatment unit , No. Water quality of the first-stage water treatment unit Water purification quality Relationship model:

[0049]

[0050] C. Establish with The overall oil and waste removal rate of the reuse system of the water treatment unit With the Water quality of the first-stage water treatment unit Water purification quality Initial wastewater quality Relationship model:

[0051]

[0052] (2) Specific relational model in this embodiment

[0053] The wastewater treated by the reuse system in this embodiment contains diesel fuel and carbon black particles. Therefore, the equipment in the wastewater treatment system for these two main impurities includes: a wastewater pretreatment system, a primary treatment system with oil-water-solid three-phase separation function, a secondary treatment system with filtration function, an intelligent control platform, a protective barrier, and a fluid transfer tank. Thus, the reuse system in this embodiment has a two-stage water treatment device.

[0054] A. In this embodiment, in order to facilitate the control of the flow direction of the fluid in the reuse system, it is necessary to establish the initial water quality values ​​of the wastewater. Compared with the initial wastewater quality and water purification quality Relationship model:

[0055]

[0056] B. In this embodiment, to facilitate control of the flow direction of the fluid in the reuse system, it is necessary to establish the effluent quality values ​​of the primary treatment unit. Water quality of primary water treatment system and water purification quality Relationship model:

[0057]

[0058] Will The qualified critical effluent water quality value of the primary treatment device in this embodiment is set.

[0059] C. In this embodiment, to facilitate control of the fluid flow direction in the reuse system, it is necessary to establish the effluent quality values ​​of the secondary treatment unit (the entire reuse system). With the effluent quality of the secondary water treatment system and water purification quality Relationship model:

[0060]

[0061] Will The qualified critical effluent water quality value is set for the secondary treatment device (reuse system as a whole) in this embodiment.

[0062] D. In the embodiment, in order to provide data support for technicians to judge the working status of the equipment, it is necessary to establish the oil and impurity removal rate of the primary processing unit. Water quality of primary water treatment system Initial wastewater quality and water purification quality Relationship model:

[0063]

[0064] Will The qualified critical processing rate of the primary processing device in this embodiment is set.

[0065] E. In the embodiment, in order to provide data support for technicians to judge the working status of the equipment, it is necessary to establish the oil and impurity removal rate of the secondary processing device. With the effluent quality of the secondary water treatment system 1. Quality of effluent from the primary water treatment system and water purification quality Relationship model:

[0066]

[0067] Will The qualified critical processing rate of the primary processing device in this embodiment is set.

[0068] F. In the embodiment, in order to provide data support for technicians to judge the operating status of the equipment, it is necessary to establish the oil and waste removal rate of the entire recycling system. With the effluent quality of the secondary water treatment system Initial wastewater quality and water purification quality Relationship model:

[0069]

[0070] Will The qualified critical oil and impurity removal rate of the primary processing device in this embodiment is set.

[0071] Assuming the mass flow meter after the clear water tank in the cleaning system measures the clean water mass... The initial wastewater mass, measured by a mass flow meter after the wastewater storage tank, is 95 kg. The mass of effluent measured by the mass flow meter after the first stage device is 100 kg. The effluent mass measured by the mass flow meter after the secondary device is 98 kg. It weighs 96 kg.

[0072] Based on the initial water quality value of the wastewater Compared with the initial wastewater quality and water purification quality The relationship model was used to obtain the initial water quality values ​​of the wastewater. The percentage is 95%; based on the effluent quality value of the primary treatment unit. Water quality of primary water treatment system and water purification quality The relationship model was used to obtain the effluent quality values ​​of the primary treatment unit. The percentage was 96.9%; based on the effluent quality values ​​of the secondary treatment unit (the entire reuse system). With the effluent quality of the secondary water treatment system and water purification quality The relationship model was used to obtain the effluent quality values ​​of the secondary treatment unit. It is 98.96%.

[0073] Based on the oil and impurity removal rate of the primary treatment unit Water quality of primary water treatment system Initial wastewater quality and water purification quality The relationship model is used to obtain the oil and impurity removal rate of the primary treatment unit. The percentage is 40%; based on the oil and impurity removal rate of the secondary treatment unit. With the effluent quality of the secondary water treatment system 1. Quality of effluent from the primary water treatment system and water purification quality The relationship model is used to obtain the oil and impurity removal rate of the secondary treatment unit. The percentage is 40%; based on the oil and waste treatment rate of the entire reuse system. With the effluent quality of the secondary water treatment system Initial wastewater quality and water purification quality The relationship model is used to obtain the oil and waste treatment rate of the entire recycling system. It is 80%.

[0074] Step 3: Based on the effluent quality measured by each mass flow meter And the relational model determines the water quality value of the effluent. Oil and waste removal rate of the treatment device And based on water quality values The compliance status is controlled by the direction of the reclaimed water flow and the oil and impurity removal rate of the treatment unit. Determine the status of the equipment.

[0075] Specifically, based on the water quality values ​​determined by the model, the intelligent control platform judges the range of water quality values ​​and then controls the corresponding electric valves to control the direction of water flow. If the water quality value for reuse is reached, the fluid in the transition tank is directed to the clean water heating tank. If the water quality value for reuse is not reached but the water quality value of the effluent from a certain wastewater treatment device is reached, the corresponding electric valve is opened, allowing the wastewater to flow to the next stage of treatment device for further wastewater treatment until the reuse water quality value is reached. Based on the oil and impurity removal rate of the water treatment device determined by the model, it is determined whether the water treatment device needs to be maintained.

[0076] The present invention also provides a wastewater quality assessment system for exhaust gas turbine cleaning based on a mass flow meter, comprising: an intelligent control platform 1, a wastewater pretreatment system 3, a primary treatment system 4, a secondary treatment system 5, and a fluid transition tank 6, wherein the wastewater pretreatment system 3, the primary treatment system 4, the secondary treatment system 5, and the fluid transition tank 6 are connected in sequence.

[0077] Wastewater pretreatment system 3 includes an automatic mixer 7, a pretreatment system mass flow meter 8, and a pretreatment system water pump 9 connected in sequence; primary treatment system 4 includes a water-oil-solid three-phase separator 12, a primary water treatment system mass flow meter 13, and a primary water treatment system water pump 14 connected in sequence; secondary treatment system 5 includes a two-core bag filter 20, a secondary water treatment system mass flow meter 21, and a secondary water treatment system water pump 22 connected in sequence; intelligent control platform 1 is communicatively connected to the pretreatment system mass flow meter 8, the primary water treatment system mass flow meter 13, and the secondary water treatment system mass flow meter 21; the pretreatment system mass flow meter 8, the primary water treatment system mass flow meter 13, and the secondary water treatment system mass flow meter 21 are connected to a mass flow meter display screen 29.

[0078] Intelligent control platform 1 is used to acquire the effluent quality data of each stage of water treatment devices collected by the mass flow meter. In this system, a mass flow meter is installed after each stage of the wastewater reuse system, the automatic mixer, and the clear water tank to measure the mass of the fluid flowing through it. The mass flow meter is installed upside down. A system for determining the effluent quality of each stage of the water treatment process is established. With water quality value A relationship model was established to determine the effluent quality of water treatment devices at each level. With the unit's oil and waste removal rate The relationship model; based on the effluent quality measured by each mass flow meter And the system water quality values ​​for determining the effluent type. Oil and waste removal rate of the treatment device And based on water quality values The compliance status is controlled by the direction of the reclaimed water flow and the oil and impurity removal rate of the treatment unit. Determine the status of the equipment.

[0079] A first electric valve 10 is installed in the pipeline between the automatic mixer 7 and the pretreatment system mass flow meter 8; a second electric valve 11 is installed in the pipeline between the pretreatment system mass flow meter 8 and the pretreatment system water pump 9. A third electric valve 15 is installed in the pipeline between the water-oil-solid three-phase separator 12 and the primary water treatment system mass flow meter 13; a fourth electric valve 16 is installed in the pipeline between the primary water treatment system mass flow meter 13 and the primary water treatment system water pump 14. A fifth electric valve 23 is installed in the pipeline between the two-core bag filter 20 and the secondary water treatment system mass flow meter 21, which are connected in sequence; a sixth electric valve 24 is installed in the pipeline between the secondary water treatment system mass flow meter 21 and the secondary water treatment system water pump 22. The pipeline between the secondary water treatment system mass flow meter 21 and the secondary water treatment system pump 22 is connected to the water-oil-solid three-phase separator 12 via a reuse pipeline 28. A seventh electric valve 25, an eighth electric valve 26, and a ninth electric valve 27 are sequentially installed on the reuse pipeline 28 from the secondary water treatment system mass flow meter 21 towards the water-oil-solid three-phase separator 12. The water-oil-solid three-phase separator 12 includes a peristaltic pump bracket 17, a hose 18, and a peristaltic pump 19. The peristaltic pump 19 is mounted on the peristaltic pump bracket 17 and connected to the hose 18.

[0080] like Figure 2 The arrangement of the mass flow meters in the water treatment system of this embodiment is illustrated. Specifically, the figure includes the relevant devices in the water treatment process, as well as the devices involved in this reuse rate evaluation method. In practice, since the effluent from the water treatment device cannot be clearer than clean water, those skilled in the art need to ensure that the effluent quality value of the water treatment device is not higher than that of clean water; otherwise, it indicates a problem with the setting and installation of the mass flow meters, such as failing to zero the initial value of the mass flow meters before water treatment.

[0081] The workflow of the water treatment system in this embodiment includes the following steps: A stirrer is added before the recycled water treatment device to evenly distribute impurities and other sediments in the liquid, preventing sedimentation and aiding the subsequent water treatment equipment; after the wastewater has resided in the stirrer for the required time, the first electric valve 10 and the second electric valve 11 open simultaneously, filling the pretreatment system's mass flow meter with water. Simultaneously, the pretreatment system's water pump starts operating according to the water pressure set by the water treatment process requirements, sending the wastewater into the water-oil-solid three-phase separator; after the oil-water-solid three-phase separator has operated for the required time, the third electric valve 15 and the fourth electric valve 16 open, filling the primary water treatment system's mass flow meter with water. Simultaneously, the primary water treatment system's water pump starts operating according to the water pressure set by the water treatment process requirements, sending the wastewater into the two-core bag filter; after the two-core bag filter has operated for the required time, the fifth electric valve 23, the sixth electric valve 24, and the seventh electric valve 25 open... Simultaneously, the eighth electric valve 26 and the ninth electric valve 27 remain closed. After one round of treatment, the fluid enters the mass flow meter of the secondary water treatment system. The water pump of the secondary treatment system operates according to the water pressure required by the process, sending all the produced water into the fluid transfer tank. After the fluid enters the fluid transfer tank, the fifth electric valve 23 and the sixth electric valve 24 are closed to prevent the water to be operated from flowing back into the mass flow meter of the secondary water treatment system. The intelligent control platform outputs the water quality value based on the mass flow data measured by all the mass flow meters in the system and the relationship model between mass and water quality value. Then, it compares the water quality value with the standard water quality value of each pre-set treatment system. Based on the comparison result, it judges the direction of water flow. If it meets the standard value for reuse water, the water is sent to the clean water tank of the closed cleaning system. If it does not meet the standard value for reuse water, the corresponding valve is opened for secondary water treatment. This cycle continues until the water quality of the system effluent reaches the standard value for reuse water.

[0082] Figure 3 and Figure 4 A three-dimensional model of the recycled water treatment system is shown. In the figure, the protective barrier 2 separates the wastewater pretreatment system 3, the primary treatment system 4, the secondary treatment system 5, and the fluid transfer tank 6 from the intelligent control platform 1. The area inside the protective barrier 2 is the intelligent operation area for the equipment, while the intelligent control platform 1 is the area for manual operation.

[0083] Figure 5A three-dimensional model of the wastewater pretreatment system is shown. The wastewater pretreatment system 3 includes an automatic mixer 7, a pretreatment system mass flow meter 8, a pretreatment system water pump 9, a first electric valve 10, a second electric valve 11, and water pipes connecting each device. Wastewater first enters the automatic mixer 7 and is stirred. After the stirring time is reached, the first electric valve 10 and the second electric valve 11 open simultaneously, allowing water to fill the pretreatment system mass flow meter 8. At the same time, the pretreatment system water pump 9 starts working according to the water pressure set according to the water treatment process requirements, pressurizing the wastewater and delivering it to the primary treatment system 4.

[0084] Figure 6 A three-dimensional model of the primary treatment system is shown. The primary treatment system 4 includes a water-oil-solid three-phase separator 12, a primary water treatment system mass flow meter 13, a primary water treatment system water pump 14, a third electric valve 15, a fourth electric valve 16, and water pipes connecting the various devices. Wastewater is first pumped by the pretreatment system water pump 9 to the water-oil-solid three-phase separator. After the separation time is reached, the third electric valve 15 and the fourth electric valve 16 open simultaneously, filling the entire primary water treatment system mass flow meter 13 with wastewater. At the same time, the primary water treatment system water pump 14 starts working according to the water pressure set according to the water treatment process requirements, pressurizing the wastewater and pumping it to the secondary treatment system 5.

[0085] Figure 7 A water-oil-solid three-phase separator and its detailed model are shown. The upper part of the separator is connected to a hose 18 for oil discharge, and the lower part is connected to a pipe for solid discharge. A peristaltic pump bracket 17 is mounted on the side of the separator body, and a peristaltic pump 19 is placed on the bracket. The peristaltic pump 19 rotates and squeezes the hose, causing the oil inside the hose to be discharged to the oil collection tank. The peristaltic pump 19, in addition to its function of conveying liquid, also functions as a shut-off valve. An electric valve is installed in the lower connected pipe to control the discharge of solids to the solids collection tank.

[0086] Figure 8 A three-dimensional model of the secondary treatment system is shown. The secondary treatment system 5 includes a two-core bag filter 20, a secondary water treatment system mass flow meter 21, a secondary water treatment system pump 22, a fifth electric valve 23, a sixth electric valve 24, and water pipes connecting the various devices. Wastewater is first pumped by the primary water treatment system pump 14 to the two-core bag filter. After the filtration time is reached, the fifth electric valve 23 and the sixth electric valve 24 open simultaneously, allowing the wastewater to fill the entire secondary water treatment system mass flow meter 21. At the same time, the secondary water treatment system pump 22 pressurizes the wastewater according to the water treatment process requirements, and delivers all the produced fluid to the fluid transfer tank 6. After all the fluid has been transferred to the transfer tank 6, the fifth electric valve 23 and the sixth electric valve 24 are closed to prevent the fluid from flowing back into the secondary water treatment system mass flow meter 21.

[0087] Figure 9 A three-dimensional model of the circulating water treatment pipeline is shown. It consists of the simultaneous opening of the seventh electric valve 25, the eighth electric valve 26 and the ninth electric valve 27, and the reuse pipeline 28. When the water quality value displayed by the mass flow meter of the secondary water treatment system and the water quality value obtained by the relationship model between the water quality value and the mass flow meter meet the standard value for reused water, it proves that the fluid discharged into the fluid transfer tank 6 is good water, and the good water is then transported to the clean water heating tank of the closed cleaning system. When the water quality value displayed by the mass flow meter of the secondary water treatment system and the water quality value obtained by the relationship model between the water quality value and the mass flow meter do not meet the standard value for reused water, but meet the qualified water quality value of the effluent from the primary treatment system, the eighth electric valve 26 and the seventh electric valve 25 are opened, the ninth electric valve 27 remains closed, and the secondary water treatment system pump 22 discharges the fluid into the secondary treatment system for further treatment until the qualified water quality value of the effluent is reached. When the water quality value displayed by the mass flow meter of the secondary water treatment system and the water quality value obtained by the relationship model between the water quality value and the mass flow meter do not meet the qualified water quality value of the effluent from the primary treatment system, the ninth electric valve 27 and the seventh electric valve 25 are opened, the eighth electric valve 26 remains closed, and the secondary water treatment system pump 22 discharges the fluid into the primary treatment system for further treatment until the qualified water quality value of the effluent is reached.

[0088] Figure 10 The diagram shows the details of a three-dimensional model of a mass flow meter in an upright position. When the mass flow meter is upright, the mass flow meter mass display screen 29 is located above the main body. When the mass flow meter is inverted, the mass display screen 29 is located below the main body. For the mass detection of solid fluids in this embodiment, the mass flow meter needs to be inverted.

[0089] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0090] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented, for example, in sequences other than those illustrated or described herein.

[0091] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A method for determining the water quality of wastewater from exhaust gas turbine cleaning based on a mass flow meter, characterized in that, include: Step 1: Obtain the effluent quality data from each stage of the water treatment system collected by the mass flow meter. In this system, a mass flow meter is installed after each stage of the wastewater reuse system, the automatic mixer, and the clear water tank to measure the mass of the fluid flowing through it. The mass flow meter is installed upside down. The wastewater treatment devices in the wastewater reuse system all use physical treatment methods. The measured effluent quality is used to represent the water quality value and the oil and impurity removal rate. Step 2: Establish effluent quality standards for each level of water treatment system. With water quality value Relationship model; The relationship model between water quality values ​​and mass in a stage-level water treatment device is as follows: ; Establish effluent quality standards for water treatment plants at all levels. With the unit's oil and waste removal rate Relationship model; Oil and impurity removal rate of the water treatment unit With quality The relationship model is as follows: With The overall oil and waste removal rate of the reuse system of the water treatment unit With quality The relationship model is as follows: ; in, To improve the water purification quality of the cleaning system, For the effluent quality of the (n-1)th stage water treatment unit in the reuse system, For the effluent quality of the nth stage water treatment unit in the reuse system, Initial wastewater quality; Step 3: Based on the effluent quality measured by each mass flow meter And the relational model determines the water quality value of the effluent. Oil and waste removal rate of the treatment device And based on water quality values The compliance status is controlled by the direction of the reclaimed water flow and the oil and impurity removal rate of the treatment unit. Determine the status of the equipment.

2. A wastewater quality assessment system for exhaust gas turbine cleaning based on a mass flow meter, characterized in that, include: The intelligent control platform (1), wastewater pretreatment system (3), primary treatment system (4), secondary treatment system (5) and fluid transfer tank (6) are connected in sequence. The wastewater pretreatment system (3) includes an automatic stirrer (7), a pretreatment system mass flow meter (8), and a pretreatment system water pump (9) connected in sequence; the primary treatment system (4) includes a water-oil-solid three-phase separator (12), a primary water treatment system mass flow meter (13), and a primary water treatment system water pump (14) connected in sequence; the secondary treatment system (5) includes a two-core bag filter (20), a secondary water treatment system mass flow meter (21), and a secondary water treatment system water pump (22) connected in sequence; the intelligent control platform (1) is communicatively connected to the pretreatment system mass flow meter (8), the primary water treatment system mass flow meter (13), and the secondary water treatment system mass flow meter (21); the pretreatment system mass flow meter (8), the primary water treatment system mass flow meter (13), and the secondary water treatment system mass flow meter (21) are connected to a mass flow meter mass display screen (29); The intelligent control platform (1) is used to acquire the effluent quality of each stage of water treatment device collected by the mass flow meter. In this system, a mass flow meter is installed after each stage of the wastewater reuse system, the automatic mixer, and the clear water tank to measure the mass of the fluid flowing through it. The mass flow meter is installed upside down. A system for determining the effluent quality of each stage of the water treatment process is established. With water quality value Relationship model; The relationship model between water quality values ​​and mass in a stage-level water treatment device is as follows: Establish effluent quality standards for water treatment plants at all levels. With the unit's oil and waste removal rate Relationship model; Oil and impurity removal rate of the water treatment unit With quality The relationship model is as follows: With The overall oil and waste removal rate of the reuse system of the water treatment unit With quality The relationship model is as follows: ;in, To improve the water purification quality of the cleaning system, For the effluent quality of the (n-1)th stage water treatment unit in the reuse system, For the effluent quality of the nth stage water treatment unit in the reuse system, The initial wastewater mass; based on the effluent mass measured by each mass flow meter. And the system water quality values ​​for determining the effluent type. Oil and waste removal rate of the treatment device And based on water quality values The compliance status is controlled by the direction of the reclaimed water flow and the oil and impurity removal rate of the treatment unit. Determine the status of the equipment.

3. The wastewater quality assessment system for exhaust gas turbine cleaning based on a mass flow meter according to claim 2, characterized in that, A first electric valve (10) is installed in the pipeline between the automatic mixer (7) and the pretreatment system mass flow meter (8); a second electric valve (11) is installed in the pipeline between the pretreatment system mass flow meter (8) and the pretreatment system water pump (9).

4. The wastewater quality assessment system for exhaust gas turbine cleaning based on a mass flow meter according to claim 3, characterized in that, A third electric valve (15) is installed in the pipeline between the water-oil-solid three-phase separator (12) and the mass flow meter (13) of the primary water treatment system; a fourth electric valve (16) is installed in the pipeline between the mass flow meter (13) of the primary water treatment system and the water pump (14) of the primary water treatment system.

5. The wastewater quality assessment system for exhaust gas turbine cleaning based on a mass flow meter according to claim 4, characterized in that, A fifth electric valve (23) is installed in the pipeline between the two-core bag filter (20) and the secondary water treatment system mass flow meter (21) connected in sequence; a sixth electric valve (24) is installed in the pipeline between the secondary water treatment system mass flow meter (21) and the secondary water treatment system pump (22).

6. The wastewater quality assessment system for exhaust gas turbine cleaning based on a mass flow meter according to claim 5, characterized in that, The pipeline between the secondary water treatment system mass flow meter (21) and the secondary water treatment system pump (22) is connected to the water-oil-solid three-phase separator (12) via a reuse pipeline (28). The reuse pipeline (28) is provided with a seventh electric valve (25), an eighth electric valve (26) and a ninth electric valve (27) in sequence from the secondary water treatment system mass flow meter (21) to the water-oil-solid three-phase separator (12).

7. The wastewater quality assessment system for exhaust gas turbine cleaning based on a mass flow meter according to claim 6, characterized in that, The water-oil-solid three-phase separator (12) includes a peristaltic pump bracket (17), a hose (18) and a peristaltic pump (19). The peristaltic pump (19) is mounted on the peristaltic pump bracket (17) and is connected to the hose (18).

Images