Mould water temperature control device

Abstract

The utility model belongs to crystallizer constant temperature water supply technical field more specifically, relate to a crystallizer water temperature control device. Hot -water storage tank (1) is connected with hot -water outlet pipeline (4) of crystallizer (3) through hot -water return pipeline (2), hot -water storage tank (1) is connected with mixed water tank (6) through hot -water makeup pipeline (5), mixed water tank (6) is connected with constant temperature water supply pipeline (17) of crystallizer (3) through constant temperature outlet pipeline (7), temperature sensor (8) is arranged in mixed water tank (6), and first valve (9) is arranged on hot -water makeup pipeline (5). The crystallizer water temperature control device of the utility model can realize heating in winter and refrigeration in hot day, supply constant temperature water to the crystallizer accurately, satisfy constant temperature water supply demand, guarantee the process water temperature of the crystallizer, guarantee product quality, reduce equipment investment cost and energy consumption simultaneously.

Description

Technical Field

[0001] This utility model belongs to the field of constant temperature water supply technology for crystallizers, and more specifically, it relates to a crystallizer inlet water temperature control device. Background Technology

[0002] Crystallizer constant-temperature water technology plays a crucial role in industrial production. Stable and suitable water temperature is a key condition for obtaining good slab surface quality. Its applications are wide-ranging, covering multiple industries such as chemical, pharmaceutical, biotechnology, petroleum, and electrical engineering. For example, in the production process of horizontal continuous casting equipment for steel and copper strip, stable control of the crystallizer cooling water temperature is essential to ensuring the surface quality of the cast slab. Currently, the mainstream cooling method is to obtain low-temperature, constant-temperature chilled water through specialized refrigeration equipment for cooling terminal equipment and materials. A crystallizer cooling water control system can be provided to reduce cooling water temperature fluctuations and ensure stable heat flow in the crystallizer. Advantages: Different types of equipment can be customized according to different low-temperature condensation crystallization reactors and process coolants to adapt to various process requirements. Disadvantages: High energy consumption, high equipment investment costs, and inability to guarantee the required water temperature of 30±1℃ in extremely cold winter weather. The existing technology's drawback is: high-temperature cooling but no low-temperature heating: the chiller unit only provides cooling in hot weather; raising the water temperature in severe winter is difficult. High equipment investment costs: Professional refrigeration equipment is expensive and energy-intensive, which is not conducive to cost control and expense reduction for enterprises. Therefore, there is a need and room for improvement in existing technologies.

[0003] Existing technology includes a system titled "Crystallizer Inlet Water Temperature Control System" (publication number: "Crystallizer Inlet Water Temperature Control System"). This system provides a crystallizer inlet water temperature control system comprising a circulating water path sequentially connecting a clean circulating hot water tank, a plate heat exchanger, and a clean circulating cold water tank. A thermometer is installed at the entrance of the circulating water path to the clean circulating cold water tank, and the thermometer is connected to a PLC control system. The PLC control system is also connected to the plate heat exchanger. This invention uses a plate heat exchanger to exchange heat from the hot water in the clean circulating hot water tank and then return it to the clean circulating cold water tank. If the return temperature is high, the PLC control system sends a control command to the plate heat exchanger to adjust its control parameters, thereby regulating the water temperature returning to the clean circulating cold water tank. Therefore, it has the following advantages: 1. High degree of automation, requiring no manual operation; 2. High control precision, with real-time monitoring for standardized management; 3. This system is a closed-loop circulation system for softened water, avoiding water quality pollution from the external environment, which is beneficial to the stability of the circulating water tank water quality, reducing the frequency of water changes, and lowering production costs.

[0004] However, this technology does not address the technical issues and solutions of this application. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a crystallizer inlet water temperature control device that is simple in structure, can achieve heating in winter and cooling in hot weather, accurately supply constant temperature water to the crystallizer, meet the constant temperature water supply requirements, ensure the temperature of the crystallizer process water, ensure product quality, and at the same time reduce equipment investment costs and energy consumption.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: This utility model is a water temperature control device for the inlet water of a crystallizer. The hot water storage tank is connected to the hot water outlet pipe of the crystallizer through a hot water return pipe. The hot water storage tank is connected to the mixing tank through a hot water replenishment pipe. The mixing tank is connected to the constant temperature water supply pipe of the crystallizer through a constant temperature outlet pipe. A temperature sensor is installed in the mixing tank. A first valve is installed on the hot water replenishment pipe 5.

[0007] The mixing tank is connected to the circulating water supply pipeline, and a third valve is installed on the circulating water supply pipeline. The water transported by the circulating water supply pipeline is heated water.

[0008] The mixing tank is connected to the tap water supply pipeline, and a second valve is installed on the tap water supply pipeline. The water transported by the tap water supply pipeline is low-temperature water.

[0009] The crystallizer is connected to the main return water pipe via a return water pipe.

[0010] The hot water storage tank is connected to the main return water pipe via a high-level overflow pipe.

[0011] The mixing tank is connected to the main return water pipe via a high-level overflow pipe.

[0012] The crystallizer comprises multiple sets, with each branch of the constant temperature water supply pipeline connected to the constant temperature water inlet of a corresponding set of crystallizers, and the high temperature water outlet of each set of crystallizers connected to the branch of the hot water outlet pipeline.

[0013] The first valve, the second valve, and the third valve are all electronic valves. The temperature sensor in the mixing tank is connected to the first valve, the second valve, and the third valve, respectively, and is connected to the control component.

[0014] A hot water supply pump is installed on the hot water return pipeline, and the hot water supply pump is connected to the control unit.

[0015] The working principle and beneficial effects of this utility model are as follows: The crystallizer inlet water temperature control device of this utility model is configured such that a hot water storage tank is used to store constant temperature water with a temperature higher than the 29℃-31℃ range supplied to the crystallizer from the mixing water tank. The hot water storage tank is used to supply high-temperature water to the mixing water tank, and the circulating water replenishment pipeline continuously supplies water to the mixing water tank to ensure that the mixing water tank has sufficient water and can continuously supply water to the crystallizer. The tap water replenishment pipeline supplies low-temperature water when the temperature in the mixing tank is too high. Specifically, the working principle of this utility model device is as follows: A temperature sensor inside the mixing tank detects and feeds back the real-time water temperature in the mixing tank to the control unit. When the water temperature in the mixing tank is below 29°C, the control unit controls the first and third valves to open (the third valve is normally open). At this time, high-temperature water from the hot water storage tank is replenished into the mixing tank, causing the water in the mixing tank to heat up. When the water temperature rises to 30.5°C, the first valve closes, and the hot water storage tank stops replenishing hot water. When the water temperature in the mixing tank drops below 29°C again, hot water replenishment is repeated to ensure that the water temperature in the mixing tank does not fall below 29°C. When the water temperature in the mixing tank is above 31°C, the second and third valves open (the third valve is normally open), and low-temperature tap water is added into the mixing tank to cool the water in the mixing tank. When the temperature is cooled to 29.5°C, the second valve closes. When the water temperature in the mixing tank rises above 31°C again, cold water is added repeatedly to ensure that the water temperature in the mixing tank does not exceed 30°C. This reliably maintains the water temperature in the mixing tank within the set range of 29°C-31°C, providing the crystallizer with the required constant temperature water. The high-temperature water in the hot water storage tank does not require separate heating; instead, it comes from the high-temperature water discharged during the crystallizer's operation, achieving energy reuse and reducing costs. Attached Figure Description

[0016] The following is a brief explanation of the contents depicted in the accompanying drawings and the markings therein: Figure 1 This is a schematic diagram of the crystallizer inlet water temperature control device described in this utility model; The following are labeled in the attached diagram: 1. Hot water storage tank; 2. Hot water return pipe; 3. Crystallizer; 4. Hot water outlet pipe; 5. Hot water replenishment pipe; 6. Mixing tank; 7. Constant temperature outlet pipe; 8. Temperature sensor; 9. First valve; 10. Circulating water replenishment pipe; 11. Third valve; 12. Tap water replenishment pipe; 13. Second valve; 14. Return pipe; 15. Main return pipe; 16. High-level overflow pipe; 17. Constant temperature water supply pipe; 18. Constant temperature water supply pipe branch pipe; 19. Hot water outlet pipe branch pipe; 20. Hot water replenishment pump; 21. Constant temperature water supply pump. Detailed Implementation

[0017] The following description, with reference to the accompanying drawings, provides a more detailed explanation of the specific embodiments of this utility model, including the shape and structure of each component, the relative positions and connections between the parts, the functions and working principles of each part: As attached Figure 1As shown, this utility model is a crystallizer inlet water temperature control device. A hot water storage tank 1 is connected to the hot water outlet pipe 4 of the crystallizer 3 via a hot water return pipe 2. The hot water storage tank 1 is connected to a mixing water tank 6 via a hot water supply pipe 5. The mixing water tank 6 is connected to the crystallizer 3's constant temperature water supply pipe 17 via a constant temperature outlet pipe 7. A temperature sensor 8 is installed inside the mixing water tank 6, and a first valve 9 is installed on the hot water supply pipe 5. The mixing water tank 6 is connected to a circulating water supply pipe 10, which is equipped with a third valve 11. The circulating water supply pipe 10 delivers water with a temperature. The mixing water tank 6 is also connected to a tap water supply pipe 12, which is equipped with a second valve 13. The tap water supply pipe 12 delivers water with a low temperature. This structure addresses the shortcomings of existing technologies by proposing an improved technical solution. In the structural setup, the hot water storage tank 1 is used to store constant temperature water with a temperature higher than the 29℃-31℃ range supplied to the crystallizer from the mixing water tank 6. The hot water storage tank 1 is used to supply high-temperature water to the mixing water tank 6. The circulating water replenishment pipeline 10 continuously supplies water to the mixing water tank to ensure that the mixing water tank has sufficient water and can continuously supply water to the crystallizer. When the temperature of the mixing tank is too high, the tap water replenishment pipe 12 supplies low-temperature water. Specifically, the working principle of the device of this utility model is as follows: 1. The temperature sensor 8 in the mixing tank 6 detects and feeds back the real-time water temperature in the mixing tank to the control component. When the water temperature in the mixing tank is lower than 29°C, the control component controls the first valve and the third valve to open. The third valve is in the normally open state. At this time, the high-temperature water in the hot water storage tank 1 is replenished into the mixing tank, so that the water in the mixing tank 6 is heated. When the water temperature rises to 30.5°C, the first valve 9 is closed, and the hot water storage tank 1 stops replenishing hot water. When the water temperature in the mixing tank 6 drops below 29°C again, the hot water replenishment is repeated to ensure that the water temperature in the mixing tank 6 does not drop below 29°C. When the water temperature in the mixing tank 6 exceeds 31°C, the second valve 13 and the third valve 11 open (the third valve 11 is normally open), allowing cold tap water to enter the mixing tank 6 and cool the water to 29.5°C. Then, the second valve 13 closes. When the water temperature in the mixing tank 6 rises above 31°C again, cold water replenishment is repeated to ensure the water temperature in the mixing tank 6 does not exceed 30°C. This reliably maintains the water temperature in the mixing tank 6 within the set range of 29°C-31°C, providing the crystallizer with the required constant-temperature water. The high-temperature water in the hot water storage tank 1 does not require separate heating; it comes from the high-temperature water discharged during the crystallizer 3's operation, achieving energy reuse and reducing costs. The crystallizer inlet water temperature control device described in this invention has a simple structure, enabling heating in winter and cooling in hot weather, accurately supplying constant-temperature water to the crystallizer, meeting the constant-temperature water supply requirements, ensuring the crystallizer's process water temperature, guaranteeing product quality, and simultaneously reducing equipment investment costs and energy consumption.

[0018] The crystallizer 3 is connected to the main return water pipe 15 via the return water pipe 14. In this structure, part of the water output from the crystallizer is used to supply the hot water storage tank, and the other part flows back to the main return water pipe for centralized collection.

[0019] The hot water storage tank 1 is connected to the main return water pipe 15 via a high-level overflow pipe 16. The mixing water tank 6 is also connected to the main return water pipe 15 via a high-level overflow pipe 16. With this structure, when too much high-temperature water enters the hot water storage tank 1, it can overflow through the high-level overflow pipe 16. Similarly, when too much water enters the mixing water tank 6, it can overflow through the high-level overflow pipe 16.

[0020] The crystallizer 3 comprises multiple sets. Each branch pipe 18 of the constant temperature water supply pipeline 17 is connected to the constant temperature water inlet of a corresponding set of crystallizers 3, and the high temperature water outlet of each set of crystallizers 3 is connected to the hot water outlet branch pipe 19 of the hot water outlet pipeline 4. In this structure, the water entering the crystallizer is constant temperature water with a temperature set between 29℃ and 31℃, while the temperature of the water discharged from the crystallizer is higher than 31℃.

[0021] The first valve 9, the second valve 13, and the third valve 11 are all electronic valves. The temperature sensor 8 in the mixing tank 6 is connected to the control component along with the first valve 9, the second valve 13, and the third valve 11. A hot water replenishment pump 20 is installed on the hot water return pipeline 2, and the hot water replenishment pump 20 is connected to the control component. In this structure, the opening and closing of the first valve 9, the second valve 13, and the third valve 11 are controlled by the control component. The real-time temperature monitored by the temperature sensor 8 is fed back to the control component, which controls the opening and closing of each valve based on the real-time temperature. The hot water replenishment pump 20 starts when hot water needs to be replenished and shuts off when hot water replenishment stops. A constant temperature water supply pump is installed on the constant temperature water outlet pipeline 7. When supplying constant temperature water to the crystallizer, the constant temperature water supply pump 21 is activated to pump the constant temperature water. The controller of the control component is a microcontroller, such as an STM32H743VIT6. Microcontrollers are a mature technology in the field of electronic technology; the control component of this utility model is a direct application of existing mature technology and not an improvement.

[0022] The present invention has been described above with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any improvements made using the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A crystallizer inlet water temperature control device, characterized in that: The hot water storage tank (1) is connected to the hot water outlet pipe (4) of the crystallizer (3) through the hot water return pipe (2). The hot water storage tank (1) is connected to the mixing tank (6) through the hot water replenishment pipe (5). The mixing tank (6) is connected to the constant temperature water supply pipe (17) of the crystallizer (3) through the constant temperature water outlet pipe (7). A temperature sensor (8) is installed inside the mixing tank (6). A first valve (9) is installed on the hot water replenishment pipe (5).

2. The crystallizer inlet water temperature control device according to claim 1, characterized in that: The mixing tank (6) is connected to the circulating water supply pipeline (10), and a third valve (11) is installed on the circulating water supply pipeline (10). The water transported by the circulating water supply pipeline (10) is water with temperature.

3. The crystallizer inlet water temperature control device according to claim 2, characterized in that: The mixing tank (6) is connected to the tap water supply pipeline (12), and a second valve (13) is installed on the tap water supply pipeline (12). The water transported by the tap water supply pipeline (12) is low temperature water.

4. The crystallizer inlet water temperature control device according to claim 1 or 2, characterized in that: The crystallizer (3) is connected to the main return water pipe (15) through the return water pipe (14).

5. The crystallizer inlet water temperature control device according to claim 1 or 2, characterized in that: The hot water storage tank (1) is connected to the main return water pipe (15) through the high-level overflow pipe (16).

6. The crystallizer inlet water temperature control device according to claim 1 or 2, characterized in that: The mixing tank (6) is connected to the main return water pipe (15) through the high-level overflow pipe (16).

7. The crystallizer inlet water temperature control device according to claim 1 or 2, characterized in that: The crystallizer (3) includes multiple sets, each constant temperature water supply pipeline branch (18) of the constant temperature water supply pipeline (17) is connected to the constant temperature water inlet of the corresponding set of crystallizers (3), and the high temperature water outlet of each set of crystallizers (3) is connected to the hot water outlet pipeline branch (19) of the hot water outlet pipeline (4).

8. The crystallizer inlet water temperature control device according to claim 3, characterized in that: The first valve (9), the second valve (13), and the third valve (11) are all electronic valves. The temperature sensor (8) in the mixing tank (6) is connected to the first valve (9), the second valve (13), and the third valve (11) respectively.

9. The crystallizer inlet water temperature control device according to claim 1 or 2, characterized in that: A hot water supply pump (20) is installed on the hot water return pipeline (2), and the hot water supply pump (20) is connected to the control component.

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