Dynamic simulation test device for circulating cooling water

Abstract

The utility model discloses a circulating cooling water dynamic simulation test device which comprises a circulating water tank, a liquid supplementing tank, an acid storage bottle, a heat exchanger, a hanging piece barrel, a reheating device, a cooling tower and a fan, a stirring device is arranged in the circulating water tank, the liquid supplementing tank and the acid storage bottle are both connected with the input end of the circulating water tank, and the heat exchanger is connected with the circulating water tank. The hanging piece barrel is connected with the heat exchanger, the reheating device is connected with the hanging piece barrel, the cooling tower is arranged at the input end of the circulating water tank, the reheating device is connected with the cooling tower, and the fan is arranged on one side of the cooling tower and conveys cold air at the bottom of the cooling tower to the top of the tower. According to the utility model, the mixing efficiency of liquid in the circulating water tank can be accelerated, errors of detection data of the pH measuring instrument and the conductivity measuring instrument can be reduced, the amount of steam pumped away by the fan can be increased, the concentration process of circulating water can be accelerated, corrosion tests of corrosion measuring couplings made of different materials and a plurality of parallel samples can be simultaneously carried out in a circulating water pipeline system, and the test efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of industrial water treatment, in particular to a circulating cooling water dynamic simulation test device. Background Art

[0002] Cooling tower circulating water is a major industrial water source, and wastewater loss from circulating water is a key factor in determining water consumption. To conserve water in thermal power plants, the first step is to increase the concentration ratio of circulating water while ensuring safe operation, reducing wastewater discharge and thereby lowering water consumption. Secondly, reuse water to achieve multiple uses, minimize discharge, and ensure compliance with discharge standards. To ensure the safety and reliability of circulating cooling water systems and to identify optimal operating parameters for water-saving projects that prevent condenser tube scaling and corrosion while maximizing water conservation, dynamic simulation tests using on-site makeup water are necessary to determine the optimal control parameters and operating standards for circulating water treatment.

[0003] The traditional circulating cooling water dynamic simulation test device has the following shortcomings: (1) During the acid addition or liquid replenishment process, the liquid enters the circulating water tank and it takes a certain amount of time to diffuse. The values ​​displayed by the online pH meter and the online conductivity meter cannot correctly reflect the situation of the entire circulating water tank, and the collected data have large errors; (2) The control system will automatically adjust the power of the electric fan according to the inlet temperature value and the tower bottom temperature value to control the inlet temperature stability. When the indoor temperature is low, the temperature of the circulating water will drop rapidly after passing through the cooling tower, which will make the operating power of the electric fan smaller and the amount of steam extracted by the electric fan smaller, resulting in a slower increase in the concentration rate of the circulating water, which will lengthen the test cycle, be time-consuming and labor-intensive, and increase economic costs; (3) The existing test device has limitations in conducting corrosion tests on multiple parallel samples of the circulating water pipeline system at the same time. The present utility model proposes a new solution to the above problems. Utility Model Content

[0004] In order to overcome at least one of the above-mentioned shortcomings, the present invention provides a circulating cooling water dynamic simulation test device. The purpose of the present invention can be achieved by adopting the following technical solutions:

[0005] The utility model provides a circulating cooling water dynamic simulation test device, comprising:

[0006] A circulating water tank, wherein a stirring device is provided in the circulating water tank, wherein the stirring device is capable of rotating and interfering with the liquid in the circulating water tank;

[0007] A liquid replenishing tank connected to an input end of the circulating water tank;

[0008] an acid storage bottle connected to an input end of the circulating water tank;

[0009] a heat exchanger, wherein a first input end of the heat exchanger is connected to an output end of the circulating water tank;

[0010] a hanging plate barrel connected to the first output end of the heat exchanger;

[0011] Reheating device: The input end of the reheating device is connected to the hanging barrel;

[0012] A cooling tower, the cooling tower being arranged at the input end of the circulating water tank, the output end of the reheating device being connected to the input end of the cooling tower;

[0013] The fan is arranged on one side of the cooling tower to transport the cold air at the bottom of the cooling tower to the top of the tower.

[0014] In one embodiment, the stirring device includes a rotating shaft and a plurality of blades, the rotating shaft is connected to a driving part, and the driving part drives the blades to rotate through the rotating shaft, and at least part of the blades are located in the liquid in the circulating water tank.

[0015] In one embodiment, the stirring device includes a plurality of blade groups spaced apart on the rotating shaft, each blade group includes at least one blade, and there is a height difference between the plurality of blade groups located in the circulating water tank.

[0016] In one embodiment, the number of the hanging sheet barrels is at least two, and at least two hanging sheet barrels are connected in parallel, and at least two corrosion testing hanging sheets are provided in the hanging sheet barrels.

[0017] In one embodiment, the circulating water tank is provided with:

[0018] A pH meter, wherein the probe of the pH meter is immersed in the liquid in the circulating water tank;

[0019] a conductivity measuring instrument, wherein a probe of the conductivity measuring instrument is immersed in the liquid in the circulating water tank;

[0020] A thermometer, wherein the probe of the thermometer is arranged at the input end of the circulating water tank;

[0021] A liquid level detector is provided in the circulating water tank and is used to detect the liquid level in the circulating water tank.

[0022] In one embodiment, the output end of the fluid replenishment tank is connected to a fluid replenishment tube, the other end of the fluid replenishment tube is located between the top of the cooling tower and the fan, and a fluid replenishment valve and a fluid replenishment pump are provided on the fluid replenishment tube.

[0023] In one embodiment, the output end of the acid storage bottle is connected to an acid feeding pipe, the other end of the acid feeding pipe is located between the bottom of the cooling tower and the circulating water tank, and an acid feeding pump is provided on the acid feeding pipe.

[0024] In one embodiment, the output end of the circulating water tank is connected to the first input end of the heat exchanger through a water outlet pipe, and the water outlet pipe is provided with a circulating water valve, a circulating water pump, a turbine flowmeter and an inlet temperature monitoring device.

[0025] In one embodiment, the heat exchanger is provided with a steam temperature monitoring device, and the circulating cooling water dynamic simulation test device further comprises:

[0026] a steam generator, wherein an output end of the steam generator is connected to the second input end of the heat exchanger;

[0027] a condenser, wherein the second output end of the heat exchanger is connected to the input end of the condenser, and the output end of the condenser is connected to the input end of the steam generator;

[0028] The steam generator and the condenser are connected via a thermal insulation pipe, and the steam generator and the heat exchanger are connected via a thermal insulation pipe.

[0029] In one embodiment, the output end of the hanging barrel and the input end of the reheating device are connected via a liquid infusion pipe, a rotor flowmeter is provided on the liquid infusion pipe, and a sewage pipe is connected to the sewage pipe, and a sewage valve is provided on the sewage pipe;

[0030] The output end of the reheating device is connected to the input end of the cooling tower through a water inlet pipe, and the outlet of the water inlet pipe is located between the cooling tower and the fan.

[0031] The beneficial technical effects of the present invention are as follows: According to the contents disclosed herein, the circulating cooling water dynamic simulation test device sets a stirring device in the circulating water tank. After the liquid replenishing tank replenishes the circulating water tank or the acid storage bottle adds acid to the circulating water tank, the blades of the stirring device rotate to stir the liquid in the circulating water tank, thereby accelerating the mixing efficiency, reducing the error of the detection data of the pH meter and the conductivity meter, and improving the accuracy and representativeness; by setting a reheating device in front of the cooling tower, the temperature of the circulating water can be appropriately increased, and the operating power of the fan can be further increased to achieve the purpose of rapid cooling of the circulating water. At the same time, the amount of steam drawn away by the fan is increased, the circulating water concentration process is accelerated, the test cycle is shortened, and economic costs are saved; by increasing the number of hanging piece barrels and the number of corrosion test hanging pieces of different materials, corrosion tests of corrosion test hanging pieces of different materials and multiple parallel samples can be carried out simultaneously in the circulating water pipeline system, thereby improving the test efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In the accompanying drawings, the following are given by way of example and not limitation:

[0033] Figure 1 Shows a schematic diagram of the overall structure;

[0034] Figure 2 A structural schematic diagram of a stirring device is shown;

[0035] Figure 3 A structural schematic diagram of another stirring device is shown.

[0036] In the figure: 1. Liquid replenishing tank; 2. Liquid replenishing valve; 3. Liquid replenishing pump; 4. Thermometer; 5. pH meter; 6. Conductivity meter; 7. Stirring device; 8. Circulating water tank; 9. Circulating water valve; 10. Circulating water pump; 11. Turbine flowmeter; 12. Inlet temperature monitoring device; 13. Steam temperature monitoring device; 14. Outlet temperature monitoring device; 15. Hanging bucket; 16. Rotor flowmeter; 17. Drain valve; 18. Reheating device; 19. Fan; 20. Acid storage bottle; 21. Acid adding pump; 22. Cooling tower; 23. Condenser; 24. Steam generator; 25. Insulation pipe; 26. Water inlet pipe; 27. Water outlet pipe; 28. Drain pipe; 29. ​​Heat exchanger. DETAILED DESCRIPTION

[0037] In the detailed disclosure below, these embodiments are fully described with reference to the accompanying drawings. In order to make the technical solutions of the present invention more clear and specific to those skilled in the art, the implementation methods described below are not limited to these. The present invention is further described in detail below in combination with the embodiments and the accompanying drawings.

[0038] In this utility model, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The term "plurality" refers to two or more, unless expressly limited otherwise. Terms such as "installed," "connected," "connected," and "fixed" should be interpreted broadly. For example, "connected" can mean fixed, removable, or integral; "connected" can mean directly or indirectly through an intermediary. Those skilled in the art will understand the specific meanings of these terms in this utility model based on specific circumstances.

[0039] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by terms such as "up", "down", "left", "right", "front" and "back" are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the present invention.

[0040] like Figure 1-Figure 3 As shown, the utility model provides a circulating cooling water dynamic simulation test device, including a circulating water tank 8, a liquid replenishing tank 1, an acid storage bottle 20, a heat exchanger 29, a hanging bucket 15, a reheating device 18, a cooling tower 22 and a fan 19. A stirring device 7 is provided in the circulating water tank 8, and the stirring device 7 can rotate and interfere with the liquid in the circulating water tank 8. The liquid replenishing tank 1 is connected to the input end of the circulating water tank 8, the acid storage bottle 20 is connected to the input end of the circulating water tank 8, the first input end of the heat exchanger 29 is connected to the output end of the circulating water tank 8, the hanging bucket 15 is connected to the first output end of the heat exchanger 29, the input end of the reheating device 18 is connected to the hanging bucket 15, the cooling tower 22 is arranged at the input end of the circulating water tank 8, the output end of the reheating device 18 is connected to the input end of the cooling tower 22, and the fan 19 is arranged on one side of the cooling tower 22 to transport the cold air at the bottom of the cooling tower 22 to the top of the tower.

[0041] In a conventional circulating cooling water dynamic simulation test device, when the online pH of the liquid in the circulating water tank 8 exceeds a preset upper limit, the acid pump 21 automatically turns on; when the online pH of the liquid in the circulating water tank 8 falls below a preset lower limit, the acid pump 21 automatically turns off. It takes time for the acid to diffuse into the circulating water tank 8, and the value displayed by the pH meter 5 does not accurately reflect the pH value of the liquid in the entire circulating water tank 8. When the rehydration pump 3 is turned on, the water in the rehydration tank 1 enters the circulating water tank 8, and the two also require a certain amount of time to fully mix. The value displayed by the conductivity meter 6 also does not accurately reflect the conductivity value of the liquid in the entire circulating water tank 8. If the system is collecting data at the same time, the collected pH and conductivity data will have large errors. In addition, if the test personnel take samples for testing at the liquid level after rehydration, the measured data for indicators such as chloride ions and calcium ions will be lower than the actual values, and will not accurately reflect the actual concentration ratio of the circulating water tank 8.

[0042] The circulating cooling water dynamic simulation test device is configured with a stirring device 7 in a circulating water tank 8. After the liquid replenishing tank 1 replenishes liquid into the circulating water tank 8 or the acid storage bottle 20 adds acid into the circulating water tank 8, the blades of the stirring device 7 rotate to stir the liquid in the circulating water tank 8, thereby accelerating the mixing efficiency of the liquid in the circulating water tank 8 and reducing the error in the detection data of the pH meter 5 and the conductivity meter 6. This enables the pH meter 5 to accurately reflect the pH value of the liquid in the circulating water tank 8, and enables the conductivity meter 6 to accurately reflect the conductivity value of the liquid in the circulating water tank 8. This improves the detection accuracy and the representativeness of the data, and enables the test personnel to obtain accurate test results whenever sampling is performed.

[0043] In a conventional circulating cooling water dynamic simulation test device, the processor automatically adjusts the power of fan 19 based on the inlet and tower bottom temperatures to maintain a relatively constant inlet temperature. However, when the indoor temperature is low, the circulating water's temperature drops rapidly after passing through cooling tower 22, resulting in a lower operating power requirement for fan 19. This reduces the amount of steam extracted by electric fan 19, slowing the growth of the circulating water concentration ratio. This prolongs the test cycle, increases time and labor costs, and increases economic costs.

[0044] The circulating cooling water dynamic simulation test device can appropriately increase the temperature of the circulating water by setting a reheating device 18 in front of the cooling tower 22. In order to control the inlet temperature of the circulating water tank 8 to remain unchanged, the processor will increase the operating power of the fan 19, and draw the cold air from the bottom of the tower to the top, that is, transport the cold air from the bottom of the tower to the top of the tower, so that the circulating water can be cooled. At the same time, the amount of steam drawn away by the fan 19 is increased, the circulating water concentration process is accelerated, the test cycle is shortened, and economic costs are saved.

[0045] In the conventional circulating cooling water dynamic simulation test device, only one hanging barrel 15 is used, and two corrosion test coupons are hung in the hanging barrel 15. This method cannot form a comparative corrosion test, and there is a certain error in the corrosion degree, which has great limitations.

[0046] The circulating cooling water dynamic simulation test device can simultaneously perform corrosion tests on corrosion test coupons of different materials and multiple parallel samples in a circulating water pipeline system by increasing the number of coupon barrels 15 and the number of corrosion test coupons of different materials, thereby improving test efficiency.

[0047] The circulating water in the circulating water tank 8 is transported to the heat exchanger 29. After entering the heat exchanger 29, the circulating water is heated by the high-temperature steam and then enters the hanging sheet barrel 15. It comes into contact with the hanging sheets of different materials in the hanging sheet barrel 15. Then, the circulating water is transported to the reheating device 18. After the temperature is appropriately increased, it enters the cooling tower 22. The circulating water is dispersed by the spherical fillers in the cooling tower 22 and falls into the circulating water tank 8, and circulates continuously.

[0048] The circulating cooling water dynamic simulation test device may also include a processor for obtaining various data obtained by the pH meter 5, the conductivity meter 6, the thermometer 4 and the liquid level detector, and adjusting the opening and closing conditions of various valves and pumps, as well as the opening and closing conditions of other equipment according to the above data signals.

[0049] In one possible implementation, Figure 1 As shown, the stirring device 7 includes a rotating shaft and a plurality of blades. The rotating shaft is connected to a driving part, and the driving part drives the blades to rotate through the rotating shaft. At least part of the blades are located in the liquid in the circulating water tank 8.

[0050] Among them, the driving part can be a motor, the output shaft of the motor is connected to a rotating shaft, and the rotating shaft is provided with a plurality of blades along the circumference. The motor drives the blades to rotate through the rotating shaft. Under the stirring of the blades, the mixing rate and mixing effect of different liquids in the circulating water tank 8 are accelerated, so that the liquid in the circulating water tank 8 can be quickly and fully mixed evenly, so as to improve the accuracy of the detection data of the pH meter 5 and the conductivity meter 6, and further improve the representativeness of the sampling test.

[0051] The processor automatically turns stirring device 7 on or off based on whether acid addition pump 21 or rehydration pump 3 is on, ensuring thorough mixing of the circulating water in circulating water tank 8. Stirring device 7 can be automatically turned off after a certain period of inactivity. Because concentrated circulating water is highly corrosive, stirring device 7 should be constructed from corrosion-resistant materials, including the shaft and blades immersed in the liquid.

[0052] In one possible implementation, Figure 2 and Figure 3 As shown, the stirring device 7 includes a plurality of blade groups spaced apart on the rotating shaft, each blade group includes at least one blade, and there is a height difference between the plurality of blade groups located in the circulating water tank 8 .

[0053] It can be understood that the blade group can be one group or more than two groups, one blade group includes at least one blade, several blades of a blade group are located at the same horizontal plane, and different groups of blade groups are located at different heights in the circulating water tank 8, which can improve the mixing degree at different positions in the circulating water tank 8, improve the mixing efficiency between liquids at different heights in the circulating water tank 8, and improve the mixing effect of the liquid in the circulating water tank 8, so as to further improve the accuracy of the detection data of the pH meter 5 and the conductivity meter 6, and improve the representativeness of the sampling test.

[0054] In one possible implementation, Figure 1 As shown, there are at least two hanging barrels 15 , and at least two hanging barrels 15 are connected in parallel. At least two corrosion testing hanging sheets are arranged in the hanging barrels 15 .

[0055] The at least two corrosion testing coupons in one coupon barrel 15 may be made of the same or different materials.

[0056] By increasing the number of coupon barrels 15 and the number of corrosion test coupons in the barrels, corrosion tests on corrosion test coupons of different materials and multiple parallel samples can be performed simultaneously in the circulating water pipeline system, thereby improving test efficiency.

[0057] The number of the hanging film barrels 15 is at least two, and the number of the hanging film barrels 15 can be two, three, four, or other integers, which can be specifically set according to the test requirements to meet the needs of different tests.

[0058] Among them, the number of corrosion testing coupons in the coupon barrel 15 is at least two, and the number of corrosion testing coupons can be two, three, four or other integers, which is specifically set according to the test requirements to meet the needs of different tests.

[0059] Among them, the corrosion test coupons of different materials are in contact with the circulating water in the coupon barrel 15, which is convenient for corrosion tests of multiple parallel samples. The corrosion test coupons can be made of stainless steel, carbon steel, copper and other materials, but are not limited to the above materials. They can be set according to the requirements of the test to meet the needs of different tests.

[0060] By providing a plurality of hanging plate barrels 15 and arranging at least two hanging plates of different materials in the hanging plate barrels 15 , the corrosion conditions of hanging plates of different materials can be comprehensively monitored and evaluated, which can greatly reduce errors.

[0061] In one embodiment, a pH meter 5, a conductivity meter 6, a thermometer 4 and a liquid level detector are provided on the circulating water tank 8. The probe of the pH meter 5 is immersed in the liquid in the circulating water tank 8, the probe of the conductivity meter 6 is immersed in the liquid in the circulating water tank 8, the probe of the thermometer 4 is arranged at the input end of the circulating water tank 8, and the liquid level detector is arranged in the circulating water tank 8 for detecting the liquid level in the circulating water tank 8.

[0062] Among them, the pH meter 5, conductivity meter 6, thermometer 4 and liquid level detector are all online real-time measuring devices. The probe of the pH meter 5 is immersed in the liquid in the circulating water tank 8 to detect the pH value of the liquid in the circulating water tank 8; the probe of the conductivity meter 6 is immersed in the liquid in the circulating water tank 8 to detect the conductivity value of the liquid in the circulating water tank 8; the probe of the thermometer 4 is set at the input end of the circulating water tank 8 to detect the temperature of the liquid about to enter the circulating water tank 8; the liquid level detector is set in the circulating water tank 8 to detect the liquid level in the circulating water tank 8. The processor can open or close the refill valve 2 in time according to the signal transmitted by the liquid level detector.

[0063] In one possible implementation, Figure 1 As shown, the output end of the liquid replenishing tank 1 is connected to a liquid replenishing pipe, the other end of the liquid replenishing pipe is located between the top of the cooling tower 22 and the fan 19, and a liquid replenishing valve 2 and a liquid replenishing pump 3 are provided on the liquid replenishing pipe.

[0064] Among them, the output end of the liquid replenishing tank 1 is connected to the liquid replenishing pipe. When the liquid level in the circulating water tank 8 is too low, the liquid replenishing valve 2 is opened, and the liquid replenishing pump 3 is started to extract the liquid in the liquid replenishing tank 1 and transport it to the circulating water tank 8 through the liquid replenishing pipe. The liquid outlet end of the liquid replenishing pipe is located between the top of the cooling tower 22 and the fan 19, and enters the cooling tower 22 to cool down and fall into the circulating water tank 8.

[0065] When the temperature of the liquid in the liquid replenishing tank 1 is appropriate, the liquid can be directly injected into the circulating water tank 8 without passing through the cooling tower 22 .

[0066] In one possible implementation, Figure 1 As shown, the output end of the acid storage bottle 20 is connected to an acid feeding pipe, the other end of the acid feeding pipe is located between the bottom of the cooling tower 22 and the circulating water tank 8, and an acid feeding pump 21 is provided on the acid feeding pipe.

[0067] Among them, the output end of the acid storage bottle 20 is connected to an acid feeding pipe. When the pH value in the circulating water tank 8 is too high, the acid adding pump 21 is started to extract the acid liquid in the acid storage bottle 20 and transport it to the circulating water tank 8 through the acid feeding pipe. The liquid outlet end of the acid feeding pipe is located between the bottom of the cooling tower 22 and the circulating water tank 8, and can fall directly into the circulating water tank 8 without passing through the cooling tower 22 for cooling.

[0068] When the temperature of the acid solution in the acid storage bottle 20 is too high, the acid solution can be cooled in the cooling tower 22 before being injected into the circulating water tank 8 .

[0069] Among them, the opening and closing of the acid adding pump 21 is realized by pre-set pH upper and lower limits. When the pH value of the liquid in the circulating water tank 8 exceeds the pH preset upper limit, the acid adding pump 21 is automatically turned on, allowing the acid liquid in the acid storage bottle 20 to enter the circulating water tank 8, and the pH gradually decreases. The acid liquid can be sulfuric acid with a volume fraction of about 5% or other acid liquid, which is selected according to the test conditions; when the pH value of the liquid in the circulating water tank 8 is lower than the pH preset lower limit, the acid adding pump 21 is automatically turned off, so that the pH value of the liquid in the circulating water tank 8 is always within an appropriate range.

[0070] In one embodiment, the output end of the circulating water tank 8 is connected to the first input end of the heat exchanger 29 through the outlet pipe 27, and the outlet pipe 27 is provided with a circulating water valve 9, a circulating water pump 10, a turbine flowmeter 11 and an inlet temperature monitoring device 12.

[0071] In one possible implementation, Figure 1 As shown, a steam temperature monitoring device 13 is provided on the heat exchanger 29. The circulating cooling water dynamic simulation test device also includes a steam generator 24 and a condenser 23. The output end of the steam generator 24 is connected to the second input end of the heat exchanger 29, the second output end of the heat exchanger 29 is connected to the input end of the condenser 23, and the output end of the condenser 23 is connected to the input end of the steam generator 24.

[0072] The heat exchanger 29 is composed of a heat exchanger 29 shell, heat exchange tubes and sealing joints. Circulating water passes through the inside of the heat exchange tubes, steam passes through the outside of the heat exchange tubes, and steam and circulating water perform convection heat exchange through the heat exchange tube walls.

[0073] The steam generator 24 and the condenser 23 are connected via a heat preservation pipe 25 , and the steam generator 24 and the heat exchanger 29 are connected via a heat preservation pipe 25 .

[0074] The steam generated by the steam generator 24 enters the heat exchanger 29 through the insulation pipe 25, exchanges heat with the circulating water, and increases the temperature of the circulating water. After exchanging heat, the steam enters the condenser 23, and finally condenses into water, flowing to the steam generator 24, and continuously circulates.

[0075] In one embodiment, the output end of the hanging barrel 15 and the input end of the reheating device 18 are connected by a liquid infusion pipe, a rotor flowmeter 16 is provided on the liquid infusion pipe, and the liquid infusion pipe is connected to a sewage pipe 28, and a sewage valve 17 is provided on the sewage pipe 28.

[0076] The opening and closing of drain valve 17 is controlled by preset upper and lower limits of conductivity. When the conductivity of the liquid in circulating water tank 8 exceeds the preset upper limit, drain valve 17 automatically opens; when the conductivity of the liquid in circulating water tank 8 falls below the preset lower limit, drain valve 17 automatically closes. By setting the preset upper and lower limits of conductivity, the circulating water concentration ratio can be adjusted to fluctuate within an appropriate range.

[0077] In one embodiment, the output end of the reheating device 18 is connected to the input end of the cooling tower 22 via a water inlet pipe 26 , and the outlet of the water inlet pipe 26 is located between the cooling tower 22 and the fan 19 .

[0078] The circulating water is heated by the reheating device 18 and raised to a suitable temperature, which can be 38°C to 45°C. The control temperature of the reheating device is adjustable. During actual operation, the circulating water temperature should be adjusted to a suitable temperature based on the on-site ambient temperature. It is not advisable to set the temperature too high to prevent the fan 19 from being unable to reduce the inlet temperature to the preset value.

[0079] Throughout this specification, terms such as "one embodiment," "some embodiments," and "specific embodiments" mean that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0080] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

[0081] In view of the above detailed description, these and other changes can be made to the embodiments. This written description, including the best mode examples, discloses the present invention. The scope of the patent obtained by the present invention is defined by the claims, which are not limited by the present disclosure. The scope of protection of the present invention is not limited thereto. Any person skilled in the art can make equivalent substitutions or changes based on the technical solutions and concepts of the present invention within the scope disclosed by the present invention, and they are all within the scope of protection of the present invention.

Claims

1. A circulating cooling water dynamic simulation test device, characterized in that: include: A circulating water tank (8), wherein a stirring device (7) is provided in the circulating water tank (8), and the stirring device (7) is capable of rotating and interfering with the liquid in the circulating water tank (8); A liquid replenishing tank (1), the liquid replenishing tank (1) being connected to an input end of the circulating water tank (8); an acid storage bottle (20), the acid storage bottle (20) being connected to an input end of the circulating water tank (8); a heat exchanger (29), wherein a first input end of the heat exchanger (29) is connected to an output end of the circulating water tank (8); a hanging plate barrel (15), wherein the hanging plate barrel (15) is connected to a first output end of the heat exchanger (29); a reheating device (18), wherein an input end of the reheating device (18) is connected to the hanging film barrel (15); a cooling tower (22), the cooling tower (22) being arranged at the input end of the circulating water tank (8), the output end of the reheating device (18) being connected to the input end of the cooling tower (22); A fan (19) is provided on one side of the cooling tower (22) to transport cold air from the bottom of the cooling tower (22) toward the top of the tower.

2. The circulating cooling water dynamic simulation test device according to claim 1, characterized in that: The stirring device (7) comprises a rotating shaft and a plurality of blades. The rotating shaft is connected to a driving unit, and the driving unit drives the blades to rotate via the rotating shaft. At least part of the blades are located in the liquid in the circulating water tank (8).

3. The circulating cooling water dynamic simulation test device according to claim 2, characterized in that: The stirring device (7) comprises a plurality of blade groups arranged at intervals on the rotating shaft, each blade group comprises at least one blade, and there is a height difference between the plurality of blade groups located in the circulating water tank (8).

4. The circulating cooling water dynamic simulation test device according to claim 1, characterized in that: The number of the hanging sheet barrels (15) is at least two, and at least two hanging sheet barrels (15) are connected in parallel. At least two corrosion detection hanging sheets are arranged in the hanging sheet barrels (15).

5. The circulating cooling water dynamic simulation test device according to claim 1, characterized in that: The circulating water tank (8) is provided with: A pH meter (5), wherein a probe of the pH meter (5) is immersed in the liquid in the circulating water tank (8); a conductivity measuring instrument (6), wherein a probe of the conductivity measuring instrument (6) is immersed in the liquid in the circulating water tank (8); A thermometer (4), wherein a probe of the thermometer (4) is arranged at an input end of the circulating water tank (8); A liquid level detector is provided in the circulating water tank (8) and is used to detect the liquid level in the circulating water tank (8).

6. The circulating cooling water dynamic simulation test device according to claim 5, characterized in that: The output end of the fluid replenishment tank (1) is connected to a fluid replenishment pipe, the other end of the fluid replenishment pipe is located between the top of the cooling tower (22) and the fan (19), and a fluid replenishment valve (2) and a fluid replenishment pump (3) are provided on the fluid replenishment pipe.

7. The circulating cooling water dynamic simulation test device according to claim 5, characterized in that: The output end of the acid storage bottle (20) is connected to an acid supply pipe, the other end of the acid supply pipe is located between the bottom of the cooling tower (22) and the circulating water tank (8), and an acid supply pump (21) is provided on the acid supply pipe.

8. The circulating cooling water dynamic simulation test device according to any one of claims 1 to 7, characterized in that: The output end of the circulating water tank (8) is connected to the first input end of the heat exchanger (29) through a water outlet pipe (27), and the water outlet pipe (27) is provided with a circulating water valve (9), a circulating water pump (10), a turbine flowmeter (11) and an inlet temperature monitoring device (12).

9. The circulating cooling water dynamic simulation test device according to any one of claims 1 to 7, characterized in that: The heat exchanger (29) is provided with a steam temperature monitoring device (13), and the circulating cooling water dynamic simulation test device further comprises: a steam generator (24), wherein an output end of the steam generator (24) is connected to a second input end of the heat exchanger (29); a condenser (23), wherein the second output end of the heat exchanger (29) is connected to the input end of the condenser (23), and the output end of the condenser (23) is connected to the input end of the steam generator (24); The steam generator (24) and the condenser (23) are connected via a heat preservation pipe (25), and the steam generator (24) and the heat exchanger (29) are connected via a heat preservation pipe (25).

10. The circulating cooling water dynamic simulation test device according to any one of claims 1 to 7, characterized in that: The output end of the hanging barrel (15) and the input end of the reheating device (18) are connected via a liquid infusion pipe, a rotor flowmeter (16) is provided on the liquid infusion pipe, the liquid infusion pipe is connected to a sewage pipe (28), and a sewage valve (17) is provided on the sewage pipe (28); The output end of the reheating device (18) is connected to the input end of the cooling tower (22) through a water inlet pipe (26), and the outlet of the water inlet pipe (26) is located between the cooling tower (22) and the fan (19).

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