System for evaluating scale inhibitors and method for evaluating scale inhibitors

Abstract

This application relates to the field of chemical scale inhibition technology, and discloses a scale inhibitor evaluation system and a scale inhibitor evaluation method. The scale inhibitor evaluation system includes multiple scale inhibitor evaluation devices, each comprising a sample storage mechanism, a mixing mechanism, a control assembly, and a recovery assembly. The sample storage mechanism includes a sample water storage tank for storing experimental sample water and a reagent storage tank for storing the scale inhibitor. The mixing mechanism includes a mixer connected to both the sample water storage tank and the reagent storage tank. The control assembly includes a pressure regulating mechanism and a temperature control mechanism capable of regulating the temperature inside the sample water storage tank or the mixer, thereby making the environment of the experimental sample water more consistent with actual working conditions and making the evaluation results of the scale inhibitor more valuable. The recovery assembly includes a collection plate and a waste liquid recovery mechanism. The waste liquid recovery mechanism is connected to the mixer and can recover the mixture inside the mixer. The collection plate is detachably installed at the outlet of the mixer to collect sediment in the mixture.

Description

Technical Field

[0001] This application relates to the field of chemical scale inhibition technology, specifically to a scale inhibitor evaluation system and a scale inhibitor evaluation method. Background Technology

[0002] In chemical production, the complex quality of production water often leads to scaling. Scale can clog equipment and pipelines, reduce thermal efficiency, increase energy consumption and maintenance costs, shorten operating cycles, and seriously affect the normal production of industrial plants. For example, in the field of coal gasification, the ash water in the ash water system is characterized by high temperature, high pressure, high hardness, high alkalinity, and high turbidity, making it extremely prone to scaling.

[0003] To reduce losses caused by scaling, the chemical industry typically adds scale inhibitors. When selecting scale inhibitors, it is generally necessary to evaluate and screen their scale-inhibiting effects using scale inhibitor evaluation systems and methods. However, current scale inhibitor evaluation systems usually conduct performance evaluations under normal pressure, medium temperature, and static or low-speed stirring conditions, which do not match the actual operating conditions of chemical production. This leads to inaccurate evaluation results and makes it difficult to screen suitable scale inhibitors. Summary of the Invention

[0004] The purpose of this application is to overcome the problem that in the prior art, the performance evaluation of scale inhibitors is generally carried out under normal pressure, medium temperature, static or low-speed stirring, which does not match the actual working conditions of chemical production, resulting in inaccurate evaluation results and difficulty in screening suitable scale inhibitors. This application provides a scale inhibitor evaluation system.

[0005] To achieve the above objectives, this application provides a scale inhibitor evaluation system, which includes multiple scale inhibitor evaluation devices, each comprising:

[0006] The sample storage facility includes a sample water storage tank for storing experimental sample water and a reagent storage tank for storing scale inhibitors. The mixing mechanism includes mixers that are respectively connected to the sample water storage tank and the reagent storage tank; The control assembly includes a pressure regulating mechanism and a temperature control mechanism capable of regulating the temperature inside the sample water storage tank and / or the mixer. The pressure regulating mechanism is connected to the mixer and can regulate the pressure inside the mixer. The recovery assembly includes a collection plate and a waste liquid recovery mechanism. The waste liquid recovery mechanism is connected to the mixer and can recover the mixture inside the mixer. The collection plate is detachably installed at the outlet of the mixer to collect sediment in the mixture.

[0007] Preferably, the mixing mechanism includes a plurality of mixers connected in sequence, and the recycling assembly includes a plurality of collection plates installed at the outlets of the plurality of mixers in a corresponding manner; The pressure regulating mechanism includes multiple pressure regulating components that are connected to multiple mixers one by one. The pressure regulating components can regulate the pressure inside the corresponding mixer. The temperature control mechanism includes multiple temperature control components that are connected to multiple mixers one by one. The temperature control components can regulate the temperature inside the corresponding mixer or sample water storage tank.

[0008] Preferably, the plurality of mixers includes a first mixer and a second mixer connected in sequence, wherein the first mixer is connected to the sample water storage tank and the reagent storage tank respectively, and the second mixer is connected to the waste liquid recovery mechanism; Multiple temperature control components include a first temperature control component and a second temperature control component. The first temperature control component is used to regulate the temperature inside the sample water storage tank, and the second temperature control component is used to regulate the temperature inside the second mixer.

[0009] Preferably, the temperature in the second mixer is higher than that in the first mixer, and the temperature control mechanism further includes a preheater located between the first mixer and the second mixer.

[0010] Preferably, the waste liquid recycling mechanism includes: The pressure reducing assembly includes a pressure reducing tank connected to the mixer and a pressure reducing valve disposed between the pressure reducing tank and the mixer; The waste liquid collection tank is connected to the pressure reducing tank, and a drain outlet is formed on the waste liquid collection tank.

[0011] Preferably, the waste liquid recovery mechanism further includes a condensation assembly, which includes a condenser connected to the top of the pressure reducing tank and a condensate tank connected to the condenser. The top of the condensate tank has an exhaust port, and the condensate tank is connected to the waste liquid collection tank.

[0012] Preferably, the connecting pipe between the waste liquid recovery mechanism and the mixer includes a detachable experimental pipe.

[0013] A second aspect of this application also provides a method for evaluating scale inhibitors, applied to the aforementioned scale inhibitor evaluation system. The method for evaluating scale inhibitors includes: One of several scale inhibitor evaluation devices was selected as the control device, and the rest were experimental devices. Fill each water storage tank with the test sample water, fill the reagent storage tank of each test apparatus with the scale inhibitor to be evaluated, and leave the reagent storage tank of the control apparatus empty. Adjust the operating parameters of each pressure regulating mechanism and each temperature control mechanism; Control each sample storage mechanism so that the experimental sample water in the control device enters the corresponding mixer, and the experimental sample water and the scale inhibitor to be evaluated in each experimental device enter the corresponding mixer. After a preset time, each waste liquid recovery mechanism is controlled to recover the mixture in the corresponding mixer; After the recovery was completed, the sediment mass W1 in the control device and the sediment mass W2 in each experimental device were obtained. The scale inhibition rate η of the scale inhibitor to be evaluated in each experimental setup is obtained as η = (W1-W2) / W1×100%.

[0014] Preferably, the step of obtaining the sediment mass W1 in the control device and the sediment mass W2 in each experimental device includes: Disassemble each collection plate and obtain the mass of the collection plate after the experiment; Based on the mass of the collected clips after the experiment, the mass of sediment on each collected clip is calculated as: Mass of collected clips after the experiment - Mass of collected clips before the experiment.

[0015] Preferably, in each scale inhibitor evaluation device, the connecting pipe between the waste liquid recovery mechanism and the mixer includes a detachable experimental pipe. The steps for obtaining the sediment mass W1 in the control apparatus and the sediment mass W2 in each experimental apparatus include: Disassemble each experimental pipe and obtain the mass of the experimental pipe after the experiment; Based on the mass of the experimental pipes after the experiment, the mass of the sediment in each experimental pipe is calculated as: Mass of the experimental pipe after the experiment - Mass of the experimental pipe before the experiment.

[0016] Preferably, in multiple experimental setups, each reagent storage tank is filled with the same scale inhibitor to be evaluated, while the operating parameters of each pressure regulating mechanism and / or each temperature control mechanism are different; or In multiple experimental setups, each reagent storage tank was filled with a different scale inhibitor to be evaluated, while the operating parameters of each pressure regulating mechanism and each temperature control mechanism were the same.

[0017] As described in the above technical solution, this scale inhibitor evaluation system mixes the experimental sample water and the scale inhibitor in a mixer. Then, a pressure regulating mechanism and a temperature control mechanism adjust the pressure and temperature of the mixture, making the environment of the experimental sample water more consistent with actual working conditions. After a preset time, the system can also recover waste liquid from the mixer through a waste liquid recovery mechanism. During the waste liquid recovery process, a collection plate collects sediment from the waste liquid. By comparing the mass of the sediment, the scale inhibition rate of the scale inhibitor can be calculated, directly reflecting the scale inhibition effect of the scale inhibitor. This scale inhibitor evaluation system can adjust the pressure and temperature of the mixture of experimental sample water and the scale inhibitor, making the environment of the experimental sample water more consistent with actual working conditions, and making the evaluation results of the scale inhibitor more relevant to actual production and more valuable for reference. Attached Figure Description

[0018] Figure 1 This is a simplified structural diagram of an embodiment of the scale inhibitor evaluation system proposed in this application; Figure 2 This is a schematic flowchart of the first embodiment of the scale inhibitor evaluation method proposed in this application; Figure 3 This is a schematic flowchart of the second embodiment of the scale inhibitor evaluation method proposed in this application. Detailed Implementation

[0019] The specific embodiments of this application will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this application.

[0020] The endpoints and any values ​​of the ranges disclosed herein are not limited to the precise ranges or values, and these ranges or values ​​should be understood to include values ​​close to these ranges or values. For numerical ranges, the endpoint values ​​of the various ranges, the endpoint values ​​of the various ranges and individual point values, and individual point values ​​can be combined with each other to obtain one or more new numerical ranges, which should be considered as specifically disclosed herein.

[0021] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating relative importance or implying the number of technical features indicated. Therefore, unless otherwise stated, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature; "multiple" means two or more. The term "comprising" and any variations thereof mean non-exclusive inclusion, where one or more other features, integers, steps, operations, units, components, and / or combinations thereof may be present or added.

[0022] In addition, terms such as “center,” “horizontal,” “up,” “down,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer” that indicate orientation or positional relationship are based on the orientation or relative positional relationship shown in the accompanying drawings. They are only for the purpose of simplifying the description of this application and do not indicate that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0023] Furthermore, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium, or internal connections between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0024] This application provides a scale inhibitor evaluation system, which aims to solve the problem that in the prior art, the performance evaluation of scale inhibitors is generally carried out under normal pressure, medium temperature, static or low-speed stirring, which does not match the actual working conditions of chemical production, resulting in inaccurate evaluation results and difficulty in screening suitable scale inhibitors. Figure 1 This is a schematic diagram of an embodiment of the scale inhibitor evaluation system proposed in this application.

[0025] The scale inhibitor evaluation system of this application is further illustrated below through embodiments. These embodiments are implemented based on the technical solution of this application, providing detailed implementation methods and specific operating procedures; however, the scope of protection of this application is not limited to the following embodiments.

[0026] See Figure 1 The scale inhibitor evaluation system proposed in this application includes multiple scale inhibitor evaluation devices, each comprising a sample storage mechanism, a mixing mechanism, a control assembly, and a recovery assembly. The sample storage mechanism includes a sample water storage tank for storing experimental sample water and a reagent storage tank for storing the scale inhibitor. The mixing mechanism includes a mixer connected to both the sample water storage tank and the reagent storage tank. The control assembly includes a pressure regulating mechanism and a temperature control mechanism capable of regulating the temperature inside the sample water storage tank or the mixer. The pressure regulating mechanism is connected to the mixer and capable of regulating the pressure inside the mixer. The recovery assembly includes a collection plate and a waste liquid recovery mechanism. The waste liquid recovery mechanism is connected to the mixer and capable of recovering the mixture inside the mixer. The collection plate is detachably installed at the outlet of the mixer to collect sediment from the mixture.

[0027] As described in the above technical solution, this scale inhibitor evaluation system mixes the experimental sample water and the scale inhibitor in a mixer. Then, a pressure regulating mechanism and a temperature control mechanism adjust the pressure and temperature of the mixture, making the environment of the experimental sample water more consistent with actual working conditions. After a preset time, the system can also recover waste liquid from the mixer through a waste liquid recovery mechanism. During the waste liquid recovery process, a collection plate collects sediment from the waste liquid. By comparing the mass of the sediment, the scale inhibition rate of the scale inhibitor can be calculated, directly reflecting the scale inhibition effect of the scale inhibitor. This scale inhibitor evaluation system can adjust the pressure and temperature of the mixture of experimental sample water and the scale inhibitor, making the environment of the experimental sample water more consistent with actual working conditions, and making the evaluation results of the scale inhibitor more relevant to actual production and more valuable for reference.

[0028] Furthermore, the scale inhibitor evaluation system includes multiple scale inhibitor evaluation devices, and the scale inhibitors tested in these devices can have different compositions, allowing for simultaneous evaluation of the scale inhibition effects of various scale inhibitors. The composition of the experimental water samples tested in these devices can also differ, enabling simultaneous testing of the scale inhibition effect of the same scale inhibitor on different experimental water samples. Of course, when the experimental water and scale inhibitor compositions in multiple evaluation devices are the same, the environment of the experimental water can be adjusted using pressure and temperature control mechanisms to test the scale inhibition effect of the scale inhibitor under different conditions, thereby selecting scale inhibitors that are more suitable for actual production. Finally, one of the multiple scale inhibitor evaluation devices can have its reagent storage tank empty, thus demonstrating the deposition and scaling of experimental grey water without the addition of scale inhibitors, serving as a blank control.

[0029] Furthermore, the mixer proposed in this application is a sealed container with heat preservation effect, and its specific structure is not limited here. The temperature control mechanism can be a temperature control device capable of adjusting the temperature of the experimental sample water in the sample water storage tank, such as a commonly used heating coil, or it can be a condenser for cooling, without specific limitations. When the experimental sample water enters the mixer and mixes with the scale inhibitor, the experimental sample water and the scale inhibitor will mix at a specific temperature and pressure due to the heat preservation effect of the mixer. The temperature control mechanism can also be a device capable of directly adjusting the temperature of the mixer, which can also allow the experimental sample water and the scale inhibitor to mix at a specific temperature and pressure. The temperature control mechanism can simultaneously regulate the temperature in the mixer and the sample water storage tank, achieving the same effect.

[0030] The pressure regulating mechanism adjusts the pressure inside the mixer by filling it with inert gas or drawing gas from it. For example, the pressure regulating mechanism may include a nitrogen cylinder, a pump valve, and a pipe connecting the nitrogen cylinder and the mixer. Opening and closing the valve connects the mixer to the nitrogen cylinder or the outside environment, while the pump pumps nitrogen from the cylinder into the mixer or draws gas from the mixer to the outside environment, thus regulating the pressure inside the mixer. Of course, the pressure regulating mechanism can also consist of other structural components, as long as it can regulate the pressure inside the mixer.

[0031] Finally, the connections mentioned in this application are often achieved through connecting pipes, and each connecting pipe is generally equipped with a corresponding pump or valve. These pumps and valves allow the mixture of scale inhibitor and experimental sample water to be transported between multiple containers and treatment devices. Some of the aforementioned pumps and valves are labeled in the accompanying drawings, while others are not shown.

[0032] See Figure 1 In chemical production processes, experimental sample water may experience vastly different production environments, therefore scale inhibitors also need to maintain good scale inhibition performance under different conditions. Thus, in some embodiments, the mixing mechanism includes multiple mixers connected in sequence, and the recovery assembly includes multiple collection plates installed at the outlets of the multiple mixers in a corresponding manner; the pressure regulating mechanism includes multiple pressure regulating components connected to the multiple mixers in a corresponding manner, the pressure regulating components being able to regulate the pressure within the corresponding mixer; and the temperature control mechanism includes multiple temperature control components corresponding to the multiple mixers in a corresponding manner, the temperature control components being able to regulate the temperature within the corresponding mixer or sample water storage tank.

[0033] The system comprises multiple mixers, with the upstream mixer connected to both the sample water storage tank and the reagent storage tank, and the downstream mixer connected to the waste liquid recovery mechanism. The experimental sample water is mixed with the scale inhibitor in the upstream mixer, exits after a preset time, and enters the next mixer, flowing sequentially into different mixers until it is recovered by the waste liquid recovery mechanism. Collection plates are installed at the outlet of each mixer to collect the scale deposits formed in different mixers. By comparing the experimental results from multiple scale inhibitor evaluation devices, the scale inhibition rate of the scale inhibitor in each mixer can be calculated, thus obtaining the scale inhibition effect of the scale inhibitor under different environments and selecting a scale inhibitor that better meets the application requirements.

[0034] The number of mixers can be adjusted according to actual needs, and there is no limit here. Only the number of temperature control mechanisms and pressure regulation mechanisms needs to be adjusted accordingly.

[0035] Further, see Figure 1The multiple mixers include a first mixer and a second mixer connected in sequence, with the first mixer connected to a sample water storage tank and a reagent storage tank respectively, and the second mixer connected to a waste liquid recovery mechanism; the multiple temperature control components include a first temperature control component and a second temperature control component, with the first temperature control component used to adjust the temperature inside the sample water storage tank and the second temperature control component used to adjust the temperature inside the second mixer.

[0036] In the specific application of this application, the experimental sample water undergoes two different production environments during the production process; therefore, this application includes a first mixer and a second mixer. The first temperature control component can regulate the temperature inside the sample water storage tank, allowing the experimental sample water and scale inhibitor to mix in the first mixer at a specific temperature and pressure. The second temperature control component directly regulates the temperature inside the second mixer, ensuring that the mixture entering the second mixer is maintained at a specific temperature and pressure.

[0037] The first and second mixers are designed to suit the practical application of this application. The actual configuration of the mixers can be adjusted according to requirements, simply by changing the number and connection method of the temperature control components and pressure regulating components.

[0038] Furthermore, see Figure 1 The temperature in the second mixer is higher than that in the first mixer, and the temperature control mechanism also includes a preheater located between the first and second mixers. When the mixture of experimental water and scale inhibitor flows from the first mixer to the second mixer, the mixture is heated by the preheater, thereby reducing the heating time of the mixer in the second mixer and improving the evaluation efficiency.

[0039] In one embodiment of this application, the waste liquid recovery mechanism includes a pressure reducing assembly and a waste liquid collection tank. The pressure reducing assembly includes a pressure reducing tank connected to a mixer and a pressure reducing valve disposed between the pressure reducing tank and the mixer; the waste liquid collection tank is connected to the pressure reducing tank and has a drain outlet formed on it.

[0040] In most cases, the temperature and pressure inside the mixer are higher than the outside temperature, and direct discharge may cause equipment damage. Therefore, the waste liquid recovery mechanism needs to depressurize before recovery. This is done by first depressurizing through a pressure reducing valve and a pressure reducing tank, and then collecting the waste liquid in a waste liquid collection tank.

[0041] See Figure 1When adjusting the pressure inside the mixer, the pressure regulating mechanism introduces a large amount of inert gas into the mixer, while the temperature control mechanism raises the temperature inside the mixer, causing the gas inside to enter a high-temperature, high-pressure state. During the waste liquid recovery process, the high-temperature gas is discharged along with the gas, potentially scalding workers and posing a safety risk. Therefore, the waste liquid recovery mechanism further includes a condensation assembly, which consists of a condenser connected to the top of the pressure reducing tank and a condensate tank connected to the condenser. The top of the condensate tank has an exhaust port, and the condensate tank is connected to the waste liquid collection tank.

[0042] During waste liquid recovery, the high-temperature gas in the pressure-reducing tank enters the condenser from the top of the tank. The condenser cools the high-temperature gas, causing some of it to condense into liquid and enter the condensate tank, while the remaining high-temperature gas is cooled into low-temperature gas and discharged to the outside through the exhaust port at the top of the condensate tank. In this embodiment, the waste liquid recovery mechanism uses a condensation component to more safely recover the high-temperature gas and mixture in the mixer, reducing potential safety risks.

[0043] In one embodiment of this application, the connecting pipe between the waste liquid recovery mechanism and the mixer includes a detachable experimental pipe. Before the experiment begins, the initial weight of the experimental pipe is recorded. After the experiment, the experimental pipe is disassembled and dried, and then weighed again to obtain the experimental weight. The difference between the experimental weight and the initial weight is the mass of the deposits in the experimental pipe. The subsequent calculation method is actually the same as when collecting deposits using collection plates. The above steps are performed in multiple scale inhibitor evaluation devices. Then, the difference between the mass of deposits in the experimental pipe of the scale inhibitor evaluation device (serving as a blank control group) and the mass of deposits in the experimental pipe of the scale inhibitor evaluation device containing the scale inhibitor is calculated. At this point, calculating the scale inhibition rate of the scale inhibitor becomes relatively simple.

[0044] In this embodiment, the experimental pipe can serve as a redundant design for the collection bracket, existing simultaneously with it. However, the aforementioned effect can be achieved by choosing either the experimental pipe or the collection bracket. When both the experimental pipe and the collection bracket are installed simultaneously, the collection bracket can be detachably installed in the experimental pipe, making the installation and removal of the collection bracket simpler.

[0045] Based on the aforementioned hardware, this application also proposes a scale inhibitor evaluation method, applied to the aforementioned scale inhibitor evaluation system. Figures 2 to 3 This is a schematic flowchart of an embodiment of the scale inhibitor evaluation method proposed in this application. (See attached document.) Figure 2 Scale inhibitor evaluation methods include: S10, one of the multiple scale inhibitor evaluation devices is designated as the control device, and the rest are experimental devices; S20, fill each water storage tank with the test sample water, fill the reagent storage tank of each test apparatus with the scale inhibitor to be evaluated, and leave the reagent storage tank of the control apparatus empty. S30, adjust the working parameters of each pressure regulating mechanism and each temperature control mechanism; S40 controls each sample storage mechanism so that the experimental sample water in the control device enters the corresponding mixer, and the experimental sample water and the scale inhibitor to be evaluated in each experimental device enter the corresponding mixer. S50, after a preset time, control each waste liquid recovery mechanism to recover the mixture in the corresponding mixer; S60, after the recovery is completed, obtain the sediment mass W1 in the control device and the sediment mass W2 in each experimental device; S70, obtain the scale inhibition rate η=(W1-W2) / W1×100% of the scale inhibitor to be evaluated in each experimental device.

[0046] The scale inhibitor evaluation method proposed in this application requires calculating the scale inhibition rate of the scale inhibitor based on a scale inhibitor evaluation system. This necessitates selecting one of multiple scale inhibitor evaluation devices as a control device. The control device does not contain any scale inhibitor, allowing for the testing of the mass W1 of deposits formed under natural scaling conditions in the experimental water under identical circumstances. After completing the experiment, the mass W1 of deposits in the control device and the mass W2 of deposits in each experimental device are obtained, enabling the calculation of the scale inhibition rate of the scale inhibitor to be evaluated in each experimental device. In this application, when the scale inhibitor composition is the same in multiple scale inhibitor evaluation devices, the parameters of the pressure regulation and temperature control mechanisms in each experimental and control device can be adjusted. This allows the experimental water and scale inhibitor to be mixed under different temperatures and pressures in each experimental device, making the environment of the experimental water more consistent with actual working conditions and ensuring that the evaluation results of the scale inhibitor are more closely aligned with actual production and have greater reference value.

[0047] Specifically, first subtract the mass of sediment in the experimental apparatus W2 from the mass of sediment in the experimental sample water under natural conditions (W1). Then calculate the ratio of this difference to the mass of sediment in the experimental sample water under natural conditions (W1). This gives the scale inhibition rate η of the scale inhibitor in the experimental apparatus. The above calculation method is simple and can be completed with a simple calculator, making it very convenient.

[0048] In this application, the scale inhibitor evaluation system includes multiple scale inhibitor evaluation devices, and the scale inhibitors tested in these devices can have different compositions, thus allowing for the simultaneous evaluation of the scale inhibition effects of multiple scale inhibitors. Similarly, the composition of the test water samples in these devices can also differ, allowing for the simultaneous testing of the scale inhibition effect of the same scale inhibitor on different test water samples. Of course, when the composition of the test water and scale inhibitor in multiple evaluation devices is the same, the environment of the test water can be adjusted using pressure and temperature control mechanisms to obtain the scale inhibition effect of the scale inhibitor under different environments, thereby selecting scale inhibitors that are more suitable for actual production. As mentioned above, the scale inhibitor evaluation method proposed in this application, after adjustments, can achieve various experimental effects and meet diverse application requirements.

[0049] Furthermore, the composition of the experimental sample water and scale inhibitor in this application needs to be adjusted according to the usage requirements, which is not restricted here, and the same applies to the operating parameters of the temperature control mechanism and the pressure regulation mechanism.

[0050] Specifically, see Figure 3 Step S60 includes: S61, Disassemble each collection clip and obtain the mass of the collection clip after the experiment; S62, based on the mass of the collected clips after the experiment, obtain the mass of sediment on each collected clip = mass of collected clips after the experiment - mass of collected clips before the experiment.

[0051] Before the experiment, the mass of each collection plate was measured. After the experiment, each collection plate was weighed again to obtain the mass of the collection plates after the experiment. By calculating the difference between the mass of the collection plates after the experiment and the mass of the collection plates before the experiment, the mass of the deposits on the collection plates could be obtained. This allowed for the calculation of the scale inhibition rate of the scale inhibitor corresponding to each collection plate, thus completing the evaluation of the scale inhibitor's effectiveness.

[0052] In each scale inhibitor evaluation device, the connecting pipe between the waste liquid recovery mechanism and the mixer includes a detachable test pipe; step S60 further includes: S63, Disassemble each experimental pipe and obtain the mass of the experimental pipe after the experiment; S64, based on the mass of the experimental pipe after the experiment, obtain the mass of the sediment in each experimental pipe = mass of the experimental pipe after the experiment - mass of the experimental pipe before the experiment.

[0053] Before the experiment, the mass of each experimental pipe was obtained by weighing it. After the experiment, each pipe was weighed again to obtain its mass after the experiment. By calculating the difference between the mass of the experimental pipe after the experiment and the mass of the experimental pipe before the experiment, the mass of the deposits on the experimental pipe could be obtained. This allowed for the calculation of the scale inhibition rate of the scale inhibitor for each experimental pipe, thus completing the evaluation of the scale inhibitor's effectiveness.

[0054] In this embodiment, the experimental pipe can serve as a redundant design for the collection bracket, existing simultaneously with it. However, the aforementioned effect can be achieved by choosing either the experimental pipe or the collection bracket. When both the experimental pipe and the collection bracket are installed simultaneously, the collection bracket can be detachably installed in the experimental pipe, making the installation and removal of the collection bracket simpler.

[0055] In one embodiment of this application, in multiple experimental devices, each reagent storage tank is filled with the same scale inhibitor to be evaluated, while the operating parameters of each pressure regulating mechanism or each temperature control mechanism are different. When the composition of the experimental sample water and the scale inhibitor in multiple scale inhibitor evaluation devices is the same, the environment of the experimental sample water can be adjusted by the pressure regulating mechanism and the temperature control mechanism to obtain the scale inhibition effect of the scale inhibitor under different environments, thereby screening out a scale inhibitor that is more suitable for actual production. In the above experimental process, the operating parameters of one of the pressure regulating mechanism and the temperature control mechanism can be different, or the operating parameters of both the pressure regulating mechanism and the temperature control mechanism can be different; this is not limited here.

[0056] In another embodiment of this application, in multiple experimental setups, each reagent storage tank is filled with a different scale inhibitor to be evaluated, and each pressure regulating mechanism and each temperature control mechanism has the same operating parameters.

[0057] In this embodiment, the scale inhibitor evaluation system includes multiple scale inhibitor evaluation devices, and the scale inhibitors tested in these devices may have different compositions, thereby simultaneously evaluating the scale inhibition effects of multiple scale inhibitors. As mentioned above, the scale inhibitor evaluation method proposed in this application, after adjustments, can achieve various experimental effects and meet diverse application requirements.

[0058] The preferred embodiments of this application have been described in detail above; however, this application is not limited thereto. Within the scope of the technical concept of this application, various simple modifications can be made to the technical solution of this application, including combining various technical features in any other suitable manner. These simple modifications and combinations should also be considered as the content disclosed in this application and are all within the protection scope of this application.

Claims

1. An antiscalant evaluation system characterized by, The scale inhibitor evaluation system includes multiple scale inhibitor evaluation devices, each of which includes: The sample storage facility includes a sample water storage tank for storing experimental sample water and a reagent storage tank for storing scale inhibitors. The mixing mechanism includes a mixer that is respectively connected to the sample water storage tank and the reagent storage tank; The control assembly includes a pressure regulating mechanism and a temperature control mechanism capable of regulating the temperature inside the sample water storage tank and / or the mixer. The pressure regulating mechanism is connected to the mixer and is capable of regulating the pressure inside the mixer. The recycling assembly includes a collection plate and a waste liquid recycling mechanism, the waste liquid recycling mechanism being connected to the mixer and capable of recycling the mixture within the mixer, the collection plate being detachably installed at the outlet of the mixer to collect sediments in the mixture.

2. The scale inhibitor evaluation system of claim 1, wherein, The mixing mechanism includes a plurality of mixers connected in sequence, and the recycling assembly includes a plurality of collection plates installed at the outlets of the plurality of mixers in a one-to-one correspondence; The pressure regulating mechanism includes multiple pressure regulating components that are connected to each of the multiple mixers in a one-to-one manner. The pressure regulating components can regulate the pressure inside the corresponding mixer. The temperature control mechanism includes multiple temperature control components that are connected to each of the multiple mixers in a one-to-one manner. The temperature control components can regulate the temperature inside the corresponding mixer or the sample water storage tank.

3. The scale inhibitor evaluation system of claim 2, wherein, The plurality of mixers include a first mixer and a second mixer connected in sequence, wherein the first mixer is connected to the sample water storage tank and the reagent storage tank respectively, and the second mixer is connected to the waste liquid recovery mechanism; The plurality of temperature control components include a first temperature control component and a second temperature control component, wherein the first temperature control component is used to adjust the temperature inside the sample water storage tank, and the second temperature control component is used to adjust the temperature inside the second mixer.

4. The scale inhibitor evaluation system of claim 3, wherein, The temperature in the second mixer is higher than that in the first mixer, and the temperature control mechanism further includes a preheater disposed between the first mixer and the second mixer.

5. The scale inhibitor evaluation system of any one of claims 1 to 4, wherein The waste liquid recycling mechanism includes: The pressure reducing assembly includes a pressure reducing tank connected to the mixer and a pressure reducing valve disposed between the pressure reducing tank and the mixer; A waste liquid collection tank is connected to the pressure reducing tank, and a drain outlet is formed on the waste liquid collection tank.

6. The scale inhibitor evaluation system of claim 5, wherein, The waste liquid recovery mechanism also includes a condensation assembly, which includes a condenser connected to the top of the pressure reducing tank and a condensate tank connected to the condenser. The top of the condensate tank has an exhaust port, and the condensate tank is connected to the waste liquid collection tank.

7. The scale inhibitor evaluation system of claim 1, wherein The connection pipe between the waste liquid recovery mechanism and the mixer includes a detachable experimental pipe.

8. A method for evaluating a scale inhibitor, applied to the scale inhibitor evaluation system according to any one of claims 1 to 7, characterized by, The scale inhibitor evaluation method includes: One of the multiple scale inhibitor evaluation devices was designated as a control device, and the rest as experimental devices; Each of the sample water storage tanks is filled with experimental sample water, and the reagent storage tank of each of the experimental devices is filled with the scale inhibitor to be evaluated, while the reagent storage tank of the control device is left empty. Adjust the operating parameters of each of the pressure regulating mechanisms and each of the temperature control mechanisms; Each of the aforementioned sample storage mechanisms is controlled such that the experimental sample water in the control device enters the corresponding mixer, and the experimental sample water and the scale inhibitor to be evaluated in each of the aforementioned experimental devices enter the corresponding mixer; After a preset time, each of the aforementioned waste liquid recovery mechanisms is controlled to recover the mixture in the corresponding mixer; After the recovery is completed, the mass of sediment W1 in the control device and the mass of sediment W2 in each of the experimental devices are obtained; The scale inhibition rate η of the scale inhibitor to be evaluated in each of the experimental devices is obtained as η = (W1-W2) / W1×100%.

9. The method of claim 8, wherein, The step of obtaining the sediment mass W1 in the control device and the sediment mass W2 in each of the experimental devices includes: Disassemble each of the aforementioned collection plates and obtain the mass of the collection plates after the experiment; Based on the mass of the collected plates after the experiment, the mass of sediment on each collected plate is calculated as: mass of the collected plates after the experiment - mass of the collected plates before the experiment.

10. The method for evaluating scale inhibitors according to claim 8, characterized in that, In each of the scale inhibitor evaluation devices, the connecting pipe between the waste liquid recovery mechanism and the mixer includes a detachable experimental pipe. The step of obtaining the sediment mass W1 in the control device and the sediment mass W2 in each of the experimental devices includes: Disassemble each of the experimental pipes and obtain the mass of the experimental pipes after the experiment; Based on the mass of the experimental pipes after the experiment, the mass of the sediment in each experimental pipe is calculated as: mass of the experimental pipe after the experiment - mass of the experimental pipe before the experiment.

11. The method for evaluating scale inhibitors according to claim 8, characterized in that, In the multiple experimental setups, each of the reagent storage tanks is filled with the same scale inhibitor to be evaluated, but the operating parameters of each pressure regulating mechanism and / or each temperature control mechanism are different; or In the various experimental setups, each of the reagent storage tanks is filled with a different scale inhibitor to be evaluated, while the operating parameters of each pressure regulating mechanism and each temperature control mechanism are the same.

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