Analog device for industrial circulating water

Abstract

The utility model belongs to the technical field of industrial circulating water treatment, a kind of simulation device of industrial circulating water, comprising: simulation box, opening upward;Water weir, it is arranged in simulation box, the top of water weir is higher than the liquid level of the set height of simulation box;The top of water weir is provided with the slope extending away from water weir;Circulating pump, circulating pump and simulation box are communicated, and circulating pump sucks water in simulation box from the lower part of simulation box, and water weir is fed to simulation box.This utility model provides a kind of simulation device of industrial circulating water, and water is evenly distributed by circulating pump and water weir and slope, and the water evaporation in simulation box is accelerated.The simulation device is simple in structure, low in cost and strong in practicality.

Description

Technical Field

[0001] This utility model belongs to the field of industrial circulating water treatment technology, and in particular relates to a simulation device for industrial circulating water. Background Technology

[0002] Circulating cooling water systems are widely used in industries such as power, petrochemicals, and metallurgy. They are a major source of water consumption in industrial enterprises and a primary focus of water conservation. During operation, circulating cooling water systems, especially open-loop systems, are affected by evaporation, leading to water concentration and increased concentrations of hardness, calcium ions, magnesium ions, and chloride ions. This exacerbates the tendency for scaling and corrosion in the system.

[0003] To ensure the safe and stable operation of circulating water systems and maximize water conservation, it is essential to conduct operational simulation tests on the circulating cooling water system. This involves screening suitable corrosion inhibitors and scale inhibitors for the circulating water system, determining their dosages, and establishing optimal control parameters to achieve safety, economy, and efficiency. To prevent scaling and corrosion, corrosion inhibitors and scale inhibitors are typically added to the circulating water. However, the market offers a wide variety of agents with complex compositions, making it challenging to evaluate their performance and determine the optimal dosage.

[0004] The performance of scale inhibitors can be demonstrated by continuously increasing the calcium ion concentration factor in the water within a simulation chamber. The formation of calcium ion precipitates within the simulation chamber indicates scaling. It is necessary to measure the calcium ion concentration in the water. When the chloride ion concentration factor in the water increases while the calcium ion concentration remains unchanged, scaling can be considered to have occurred.

[0005] The performance of corrosion inhibitors can be evaluated by installing a sample of the desired material in a simulation chamber and measuring the corrosion rate of the sample at different concentration ratios. In existing technologies, separate simulation chambers are provided for measuring the performance of corrosion inhibitors and scale inhibitors.

[0006] The existing technology has the following defects and shortcomings: the simulation box in the existing technology has uneven water distribution and slow water evaporation. Utility Model Content

[0007] This invention provides a simulation device for industrial circulating water, which solves the problems of uneven water distribution and slow water evaporation in the simulation tank.

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

[0009] An industrial circulating water simulation device includes: a simulation tank with an upward-facing opening for containing industrial circulating water; an outlet weir disposed within the simulation tank, the top of the outlet weir being higher than a predetermined liquid level in the simulation tank, and the top of the outlet weir having a slope extending away from the outlet weir; and a circulation pump connected to the simulation tank, the circulation pump drawing water from the bottom of the simulation tank and supplying water to the simulation tank through the outlet weir.

[0010] Furthermore, in the simulation device described above, the outlet weir is arranged along one inner wall of the simulation tank, the top of the outlet weir is a drain outlet, the bottom of the outlet weir is higher than the outlet of the simulation tank to the circulating pump, and the cross-section of the outlet weir is rectangular.

[0011] Furthermore, in the simulation device described above, the slope is set at a certain angle α with the sidewall of the outlet weir, and the angle α ranges from 45° to 60°.

[0012] Furthermore, the simulation device described above includes: a temperature control device, the heating component of which is located at the bottom of the simulation chamber; a power unit equipped with a water flow simulator located inside the simulation chamber for simulating water flow velocity; a liquid level control device inside the simulation chamber for controlling the liquid level within the chamber; a water replenishment tank located above the simulation chamber and connected to it via a control valve group for replenishing water to the simulation chamber; and the liquid level control device and the control valve group being communicatively connected for controlling the on / off state of the control valve group.

[0013] Furthermore, in the simulation device described above, the temperature control device is a temperature controller, the heating component is a heating resistor, and the heating resistor of the temperature controller extends into the bottom of the simulation chamber.

[0014] Furthermore, in the simulation device described above, the water flow simulator is a hanging plate, and the bottom of the power device is provided with the rotatable hanging plate. The water flow speed is simulated by adjusting the rotation speed of the hanging plate. The power device includes a vertically arranged rotating shaft in the simulation box and a motor fixedly connected to the upper end of the rotating shaft. The motor provides power to the rotating shaft, and the bottom of the rotating shaft is provided with the hanging plate.

[0015] Furthermore, in the simulation device described above, the control valve group is a solenoid valve; the liquid level control device is a liquid level sensor, which is communicatively connected to the solenoid valve and used to control the on / off state of the solenoid valve.

[0016] Furthermore, the simulation device described above also includes a drain valve located at the bottom of the simulation tank for draining water from the simulation tank.

[0017] Furthermore, the simulation device described above also includes: a support frame disposed on one side of the simulation box, the top of the support frame being no less than the top of the simulation box; and a water replenishment tank disposed at the top of the support frame.

[0018] Furthermore, in the simulation device described above, the top of the outlet weir is at least 10 cm above the liquid level at a set height of the simulation tank.

[0019] The technical solution provided in this application has the following beneficial effects:

[0020] This invention provides an industrial circulating water simulation device that uses a circulating pump, an outlet weir, and a slope to evenly distribute water, resulting in uniform water quality and accelerating water evaporation within the simulation tank. The simulation device has a simple structure, low cost, and high practicality. Attached Figure Description

[0021] Figure 1 A schematic diagram of the structure of an industrial circulating water simulation device provided in this application;

[0022] Reference numerals: 1. Simulation box; 2. Water supply tank; 3. Solenoid valve; 4. Rotary shaft; 5. Liquid level sensor; 6. Hanging plate; 7. Water outlet weir; 8. Circulating pump; 9. Heating resistor; 10. Temperature controller; 11. Support; 12. Motor; 13. Drain valve; 14. Inclined ramp; 15. Angle α. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0024] In the description of this utility model, it should be noted that the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply 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 utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] See attached document Figure 1 This application provides a detailed description of an industrial circulating water simulation device.

[0027] In summary, the basic technical solution of this utility model is briefly described as follows: An industrial circulating water simulation device includes: a simulation tank with an upward-facing opening for containing industrial circulating water; an outlet weir disposed inside the simulation tank, the top of which is higher than the set liquid level of the simulation tank; a slope extending away from the outlet weir at the top of the outlet weir; and a circulation pump connected to the simulation tank, wherein the circulation pump draws water from the bottom of the simulation tank and supplies water to the simulation tank through the outlet weir.

[0028] The following is a detailed description of an industrial circulating water simulation device provided in this application.

[0029] like Figure 1 As shown, an industrial circulating water simulation device includes: a simulation tank 1 with an upward-facing opening for containing industrial circulating water; a circulation pump 8 and an outlet weir 7. The combined design of the circulation pump 8 and the outlet weir 7 achieves uniform water distribution in the simulation tank 1, accelerates water evaporation within the simulation tank 1, and can increase the concentration factor of the substances set in the simulation tank 1. The circulation pump 8 maintains the flow state of the liquid within the simulation tank 1, ensuring uniform water quality. The circulation pump 8 is connected to the simulation tank 1, drawing water from the bottom of the simulation tank 1 and supplying water to the simulation tank 1 through the outlet weir 7. It should be noted that the liquid in the circulation pump 8 originates from the simulation tank 1 and returns to the simulation tank 1. During the circulation process, water evaporates. Without replenishment, the concentration factor of the substances set in the simulation tank will increase.

[0030] A weir 7 is installed along one inner wall of the simulation tank 1 to evenly distribute water, control the liquid level, increase the oxygen content in the water, and promote water evaporation. The bottom of the weir 7 is made of fiberglass plate. The weir 7 has vertical side walls, one of which coincides with one inner wall of the simulation tank 1. The bottom of the weir 7 is higher than the outlet of the circulation pump 8 from the simulation tank 1, and the top of the weir 7 is lower than the top of the simulation tank 1. The top of the weir 7 is higher than the set liquid level of the simulation tank 1 by at least 10 cm. The set liquid level can be equal to or greater than the sufficient liquid level set by the liquid level control device. In one specific embodiment, the top of the weir 7 is 10 cm higher than the liquid level (i.e., the set liquid level) of the simulation tank 1 to facilitate the water from the weir 7 falling into the simulation tank. The water surface of the simulation chamber 1 is evenly distributed to accelerate water evaporation within the chamber. The top of the outlet weir serves as a drain outlet. The top of the outlet weir 7 is equipped with a slope 14 extending away from the outlet weir 7. This slope 14 is set at a certain angle α with the side wall of the outlet weir 7, which is used to ensure that when water injected by the circulation pump 8 overflows from the outlet weir 7, it falls onto the water surface of the simulation chamber 1, thereby accelerating water evaporation in the simulation chamber 1 and increasing the oxygen content in the water of the simulation chamber 1. The angle α ranges from 45° to 60°, for example, 45°, 50°, 55°, and 60°. Preferably, the angle α is 45°. The cross-section of the outlet weir 7 can be rectangular. The outlet weir 7 can precisely control the experimental flow rate, ensure that the parameters can be repeated, restore the actual hydraulic flow state, improve the simulation realism, isolate the core experimental area, avoid external interference, and assist in the measurement of water quality parameters.

[0031] The simulation device also includes a temperature control device. The simulation chamber 1 is a container for holding industrial circulating water and is used to simulate the working environment of industrial circulating water. The temperature control device is used to detect the water temperature and automatically control the heating by comparing it with the set value. The heating component of the temperature control device is located at the bottom of the simulation chamber 1 and is used to heat the water in the simulation chamber 1. The temperature control device can automatically control the water temperature in the simulation chamber 1 according to the temperature set by the temperature control device. In a specific embodiment, the temperature control device is a temperature controller 10, and the specific model can be the Chint intelligent temperature controller ZTW4901A. The heating component is a heating resistor 9, and the heating resistor 9 of the temperature controller 10 extends into the bottom of the simulation chamber 1.

[0032] The simulation device also includes a power unit, which is equipped with a water flow simulator located inside the simulation box 1 to simulate water flow speed. In a specific embodiment, the water flow simulator is a hanging plate 6, and the bottom of the power unit is equipped with a rotatable hanging plate 6. The actual water flow speed is simulated by adjusting the rotation speed of the hanging plate 6.

[0033] Above the simulation tank 1 is a water replenishment tank 2 connected to the simulation tank 1 via a control valve assembly. The water replenishment tank 2 is used to hold the same liquid as the simulation tank 1 (i.e., industrial circulating water). The water replenishment tank 2 replenishes the liquid in the simulation tank 1. The water replenishment tank 2 is connected to the simulation tank 1 via the control valve assembly, which controls the opening and closing of the water replenishment tank 2 and the simulation tank 1 to achieve water replenishment from the water replenishment tank 2 to the simulation tank 1. The simulation tank 1 is equipped with a liquid level control device, which can detect the liquid level and water volume in the simulation tank 1. The liquid level control device is communicatively connected to the control valve assembly and can control the opening and closing of the control valve assembly to achieve automatic water replenishment of the simulation tank 1. The liquid level control device is preset with a water replenishment level and a sufficient liquid level. When the liquid level in the simulation tank 1 drops to the water replenishment level of the liquid level control device, the liquid level control device controls the control valve group to open and automatically replenish water from the water replenishment tank 2 to the simulation tank 1. When the liquid level reaches the sufficient liquid level, the liquid level control device controls the control valve group to close and the water replenishment tank 2 stops replenishing water to the simulation tank 1. The sufficient liquid level is greater than or equal to the water replenishment level.

[0034] In one specific embodiment, the control valve group is a solenoid valve 3; in another specific embodiment, the liquid level control device is a liquid level sensor 5, which is communicatively connected to the solenoid valve 3 and used to control the on / off state of the solenoid valve 3. In one specific embodiment, the liquid level sensor 5 and the solenoid valve 3 are wired communicatively connected. The liquid level sensor 5 has a range of 0-1m / output current of 4-20mA, meaning it measures a liquid level height of 0-1m. When the liquid level in the simulation tank 1 drops to the replenishment level, the liquid level sensor 5 controls the solenoid valve 3 to open, and the replenishment tank replenishes water to the simulation tank. When the liquid level reaches the sufficient level, the liquid level sensor 5 controls the solenoid valve 3 to close. Specifically, the operating voltage of the solenoid valve 3 is AC220V. This application achieves automatic water replenishment to the simulation tank 1 by controlling the solenoid valve 3 with the liquid level sensor 5. In one specific embodiment, the liquid level sensor 5 is a submersible (cable-type) hydrostatic liquid level sensor, model SUP-P260-B.

[0035] The power equipment includes a vertically mounted rotating shaft 4 in the simulation chamber 1, and a motor 12 fixedly connected to the upper end of the rotating shaft 4. The motor 12 provides power to the rotating shaft 4. A hanging plate 6 is provided at the bottom end of the rotating shaft 4. The actual water flow velocity is simulated by adjusting the rotation speed of the hanging plate 6. The shape of the hanging plate 6 can be rectangular, circular, annular, tubular, or irregular, such as a pipe bend slice or a heat exchanger tube section slice. The shape of the hanging plate 6 is determined according to the actual working conditions of the simulation. The material of the hanging plate 6 can be a metal material, such as 304 stainless steel, 316L stainless steel, titanium alloy, Hastelloy, high manganese steel, wear-resistant cast iron, etc. The material of the hanging plate 6 is determined according to the set material to be measured to ensure the reliability and repeatability of the experimental data. In a specific embodiment, the set material to be measured is stainless steel, so the hanging plate 6 is made of stainless steel. When the hanging plate 6 rotates with the rotating shaft 4, relative motion will occur between the hanging plate 6 and the surrounding water flow, thereby forming a shear force on the surface of the hanging plate 6. The higher the rotational speed, the greater the relative velocity between the support plate 6 and the water flow, and the greater the shear force generated. This is similar to the different shear forces generated on the pipe wall when the actual water flow velocity is different. Therefore, by controlling the rotational speed of the rotating shaft 4, different actual water flow velocities can be simulated, and the influence of water flow velocity on the biofilm growth and corrosion processes on the support plate 6 can be studied.

[0036] As some alternative embodiments of this application, the simulation device may also include a support 11 for supporting the water tank; the support 11 is disposed on one side of the simulation box 1, the top height of the support 11 is not lower than the top height of the simulation box 1, and the water tank 2 can be placed on the top of the support 11.

[0037] As some alternative embodiments of this application, the simulation device also includes a drain valve 13 located at the bottom of the simulation tank 1, used to drain water from the simulation tank 1, and then replenish water through a level control device and a water replenishment tank 2, thereby reducing the concentration factor of the substance set in the simulation tank 1. In one specific embodiment, the drain valve 13 is located below the outlet of the simulation tank 1 to the circulating pump 8. When the concentration factor of the set substance is detected to be greater than the set range, the drain valve 13 can be activated to drain water, and then water can be replenished through a level control device and a water replenishment tank 2, thereby reducing the concentration factor of the set substance in the simulation tank 1. In summary, the liquid level of the simulation tank 1 in this application is a constant liquid level. This application provides two methods to change the concentration factor of the set substance in the simulation tank 1, thereby evaluating the performance of the corrosion and scale inhibitor, which are summarized as follows:

[0038] 1. Water is added to simulation tank 1 via water replenishment tank 2 to achieve the set concentration factor of the substance. Specifically, water evaporation causes the liquid level in the simulation tank to drop, increasing the set concentration factor of the substance within the simulation tank. After water evaporation or drainage from drain valve 13, the liquid level drops to the replenishment level. The liquid level control device then opens the control valve group, allowing water to be added to simulation tank 1 from water replenishment tank 2. When the liquid level reaches the sufficient level, the liquid level controller closes the control valve group, stopping water replenishment from water replenishment tank 2 to simulation tank 1. The system then checks whether the set concentration factor of the substance has been reached. If the set concentration factor has not been reached... Repeat the above operation until the required concentration factor of the substance is reached; or, when the required concentration factor of the substance is detected to be greater than the set range, after drain valve 13 drains the water, the liquid level drops to the replenishment level, the liquid level control device controls the control valve group to open, and the replenishment tank 2 replenishes water to the simulation tank 1. When the liquid level reaches the sufficient level, the liquid level controller controls the control valve group to close, and the replenishment tank 2 stops replenishing water to the simulation tank 1. Check whether the reduced required concentration factor of the substance meets the requirements. If not, repeat the above drain and replenishment operation until the required concentration factor of the substance is reached.

[0039] 2. Water is circulated through the circulating pump 8 and the outlet weir 7. During the circulation process, water will evaporate, causing the liquid level in the simulation tank to drop. This increases the concentration factor of the set substance in the simulation tank. When the concentration factor of the set substance is detected to be greater than the set range, the drain valve 13 drains water, and the liquid level drops to the replenishment level. The liquid level control device controls the control valve group to open, and water is replenished from the replenishment tank 2 to the simulation tank 1. When the liquid level reaches the sufficient level, the liquid level controller controls the control valve group to close, and the replenishment tank 2 stops replenishing water to the simulation tank 1. The reduced concentration factor of the set substance is checked to see if it meets the requirements. If it does not meet the requirements, the above draining and replenishing operation is repeated until the required concentration factor of the set substance is reached.

[0040] In use, industrial circulating water samples from the industrial circulating water system are injected into simulation tank 1 to a set height, at least 10cm below the top of the outlet weir 7, ensuring that the water in the outlet weir 7 falls to the surface of simulation tank 1. Industrial circulating water replenishment samples are placed in replenishment tank 2. The temperature is set using a temperature control device, and simulation tank 1 is heated via heating resistor 9 to ensure the water temperature in simulation tank 1 matches the ambient temperature. Then, a certain amount of scale inhibitor, corrosion inhibitor, and one of the following is added to simulation tank 1 (taking scale inhibitor measurement as an example). The circulating pump 8 is started and runs continuously to maintain water flow in simulation tank 1. The selected material to be measured, the mounting plate 6, is installed at the bottom of the rotating shaft 4. By rotating the mounting plate 6, the actual water flow velocity is simulated.

[0041] When the liquid level in simulation tank 1 drops to the water replenishment level set by the liquid level control device, the liquid level control device controls the control valve group to open, and water replenishment tank 2 replenishes water to simulation tank 1. When the liquid level reaches the sufficient level, the liquid level controller controls the control valve group to close, and water replenishment tank 2 stops replenishing water to simulation tank 1, maintaining the liquid level in simulation tank 1 within a suitable range.

[0042] This application measures the performance of a scale inhibitor by measuring the formation of calcium ions as precipitates. When the concentration factor of a substance set in the simulation tank 1 is greater than or equal to the set range by chemical titration, the drain valve 13 can be activated to drain the water and then the water replenishment tank 2 can be replenished. The set substance includes elements in the water in the simulation tank 1. Specifically, the set substance includes at least one of chloride ions, sodium ions, potassium ions, magnesium ions, and calcium ions. The concentration factor is set in the range of 2-12 times, for example, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, and 12 times. In one specific embodiment, chloride ions are relatively stable, and the substance is set as chloride ions. Calcium ions are also detected. The concentration factor is set to a range of 3. As water evaporates in simulation tank 1, the salt content in simulation tank 1 increases. The values ​​of chloride ions and calcium ions in simulation tank 1 are measured by laboratory sampling. When the concentration factor of chloride ions in simulation tank 1 is greater than or equal to 3, the concentration factor of chloride ions is reduced by drain valve 13 and water replenishment tank 2. Specifically, water is first drained through drain valve 13 until the liquid level drops to the water replenishment level. The liquid level control device controls the control valve group to open, and water is replenished to simulation tank 1 from water replenishment tank 2. When the liquid level reaches the sufficient level, the liquid level controller controls the control valve group to close, and water replenishment tank 2 stops replenishing water to simulation tank 1. The concentration factor of chloride ions is then checked to see if it is lower than 3. If the concentration factor of chloride ions is greater than or equal to 3, the above operation of reducing the concentration factor of chloride ions through drain valve 13 and water replenishment tank 2 is repeated. If the concentration factor of chloride ions is less than 3, it remains unchanged. The concentration ratio setting range is adjusted according to actual needs, and is set to 4. When the concentration ratio of chloride ions in the measured simulation tank 1 is greater than or equal to 4, the concentration ratio of chloride ions is reduced by operating the drain valve 13 and the water supply tank 2 as described above. As the concentration ratio of chloride ions increases, the concentration of calcium ions also increases exponentially. When the concentration ratio of chloride ions is a certain multiple, the corresponding concentration of calcium ions is the same as the original concentration ratio. If the concentration ratio of chloride ions continues to increase, but the increase in calcium ions is less than the concentration ratio, it indicates that calcium ions have formed precipitates and scale, thus evaluating the scale inhibitor's effect on calcium ion inhibition.

[0043] Taking the measurement of corrosion inhibitors as an example, this application measures the performance of corrosion inhibitors by measuring the weight (size) change of the pad 6. Before the pad 6 is used, its weight is measured. The pad 6 is installed in the simulation chamber 1, and the liquid level in the simulation chamber 1 is set to the equilibrium level. A certain concentration of corrosion inhibitor (or corrosion and scale inhibitor) is added to the simulation chamber 1. The simulation chamber 1 is run to simulate the temperature and flow rate of the on-site circulating cooling water system. If the water in the simulation chamber 1 evaporates, when the liquid level drops to the makeup water level, the liquid level control device controls the control valve group to open, and water is added to the simulation chamber 1 from the makeup water tank 2. When the liquid level reaches the sufficient level, the liquid level controller controls the control valve group to open. When the valve group is closed, the water supply tank 2 stops supplying water to the simulation tank 1. The chloride ion concentration in the simulation tank 1 is controlled within the set range (i.e., the chloride ion concentration factor is controlled) through the drain valve 13 and the water supply tank 2. The hanging plate 6 is rotated for at least 168 hours. The hanging plate 6 is then removed, and the weight of the hanging plate 6 after 168 hours of corrosion is measured. With the same concentration factor, at the same time, and under the same operating conditions, the weight reduction of the hanging plate 6 is measured for the same material. The weight reduction of the hanging plate 6 varies with different corrosion inhibitors. The corrosion rate of the hanging plate 6 with different corrosion inhibitors is then calculated. By comparing and analyzing the results, the performance evaluation of different corrosion inhibitors is obtained.

[0044] This invention provides an industrial circulating water simulation device with a simple structure, low cost, and strong practicality. The device uses a circulating pump 8 and an outlet weir 7 to evenly distribute water, accelerating water evaporation within the simulation tank 1. This allows for the measurement of both corrosion inhibitors and scale inhibitors using a single simulation tank 1. Temperature and flow rate are simulated on-site within the simulation tank 1.

[0045] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features of the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0046] For those skilled in the art, this invention can be implemented through other embodiments that do not depart from its spirit or essential characteristics. It is obvious that this invention is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, all embodiments are merely illustrative and not exhaustive, and should be considered exemplary and non-limiting. The scope of this invention is defined by the appended claims rather than the foregoing description, and therefore all changes falling within the meaning and scope of equivalents of the claims are intended to be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims. All changes within the scope of this invention or its equivalents are included in this invention.

Claims

1. A device for simulating industrial circulating water, characterized in that, include: The simulation chamber, with its opening facing upwards, is used to contain industrial circulating water. An outlet weir is installed inside the simulation chamber. The top of the outlet weir is higher than the liquid level at a set height in the simulation chamber. The top of the outlet weir is provided with a slope extending away from the outlet weir. A circulation pump is connected to the simulation tank. The circulation pump draws water from the bottom of the simulation tank and feeds water into the simulation tank through the outlet weir.

2. The industrial circulating water simulation device according to claim 1, characterized in that, The water outlet weir is arranged along one inner wall of the simulation tank. The top of the water outlet weir is a drain outlet, and the bottom of the water outlet weir is higher than the outlet of the simulation tank to the circulating pump. The cross-section of the water outlet weir is rectangular.

3. The industrial circulating water simulation device according to claim 1 or 2, characterized in that, The slope is set at a certain angle α with the side wall of the outlet weir, and the angle α ranges from 45° to 60°.

4. The industrial circulating water simulation device according to claim 1, characterized in that, include: A temperature control device, wherein the heating component of the temperature control device is located at the bottom of the simulation chamber; The power equipment is equipped with a water flow simulator, which is located inside the simulation box and is used to simulate water flow speed. The simulation chamber is equipped with a liquid level control device for controlling the liquid level inside the simulation chamber; A water supply tank is provided above the simulation tank and is connected to the simulation tank through a control valve group for replenishing water to the simulation tank; The liquid level control device is communicatively connected to the control valve group and is used to control the on / off state of the control valve group.

5. The industrial circulating water simulation device according to claim 4, characterized in that, The temperature control device is a temperature controller, and the heating component is a heating resistor. The heating resistor of the temperature controller extends into the bottom of the simulation box.

6. The industrial circulating water simulation device according to claim 4, characterized in that, The water flow simulator is a hanging plate, and the bottom of the power equipment is equipped with a rotatable hanging plate. The water flow speed is simulated by adjusting the rotation speed of the hanging plate. The power equipment includes a vertically arranged rotating shaft in the simulation box and a motor fixedly connected to the upper end of the rotating shaft. The motor provides power to the rotating shaft, and the hanging plate is provided at the bottom end of the rotating shaft.

7. The industrial circulating water simulation device according to claim 4, characterized in that, The control valve assembly is a solenoid valve; The liquid level control device is a liquid level sensor, which is communicatively connected to the solenoid valve and is used to control the opening and closing of the solenoid valve.

8. The industrial circulating water simulation device according to claim 1, characterized in that, Also includes: A drain valve, located at the bottom of the simulation tank, is used to drain the water from the simulation tank.

9. The industrial circulating water simulation device according to claim 4, characterized in that, Also includes: A support frame is provided on one side of the simulation chamber, and the height of the top of the support frame is not lower than the height of the top of the simulation chamber. The water replenishment tank is located at the top of the bracket.

10. The industrial circulating water simulation device according to claim 1, characterized in that, The top of the outlet weir is at least 10 cm above the liquid level at the set height of the simulation tank.

Images