Intelligent constant-temperature water heater

Abstract

The utility model provides a kind of intelligent constant temperature water tank, comprising: water is stored in water storage structure;Heating structure is heated to water in water storage structure;Sensor structure monitors the liquid level information and temperature information of water in water storage structure;Conveying structure conveys water to be heated to water storage structure and conveys heated water in water storage structure to industrial production equipment;When determining that the liquid level in water storage structure is lower than preset liquid level value, controller controls conveying structure to water in water storage structure, and when temperature deviates from preset temperature value, adjusts the heating power of heating structure. Thus, water storage is used as a basic container, and the sensor structure is used to monitor the water level and water temperature changes in the tank in real time. The data is transmitted to the controller, which dynamically adjusts the heating structure to keep the water supply temperature at the preset temperature value. Through automatic water replenishment and heating control, constant temperature water supply can be completed autonomously in an unattended state, reducing the uncertainty caused by manual intervention and achieving full-process automatic control.

Description

Technical Field

[0001] This utility model relates to the field of automated control technology for constant temperature water supply, and more specifically, to an intelligent constant temperature hot water tank. Background Technology

[0002] In industrial production, there is a widespread demand for constant-temperature water supply. Traditional water tank temperature control systems mainly use simple temperature switches or temperature sensors to regulate the temperature. Constant-temperature water tanks that use temperature switches to regulate the temperature have a normally closed temperature switch installed inside, which is consistent with the process temperature, controlling the power supply to the heating element. This makes it impossible to flexibly adjust the target temperature. In contrast, constant-temperature water tanks that use temperature sensors to regulate the temperature can thus have the function of adjusting the target temperature.

[0003] Neither of the aforementioned two types of constant-temperature water tanks has the function of measuring the liquid level inside the tank. The water temperature control within the tank does not dynamically adjust the heating resistance wire power based on the water volume parameters, resulting in inaccurate water temperature control. Furthermore, in the production process, the constant-temperature water supply process requires manual intervention, making it impossible to achieve unmanned and fully automated operation.

[0004] Therefore, it is necessary to provide an apparatus to solve the problems existing in the prior art. Utility Model Content

[0005] The main purpose of this utility model is to provide an intelligent constant temperature hot water tank, so as to at least solve the problems of inaccurate water temperature control in the prior art, and the need for manual intervention in the constant temperature water supply process during production, which makes it impossible to achieve unmanned and fully automated constant temperature water supply.

[0006] To achieve the above objectives, this utility model provides an intelligent constant temperature hot water tank, comprising: a water storage structure for storing water; a heating structure disposed on the water storage structure for heating the water in the water storage structure; a sensor structure installed on the water storage structure for monitoring the liquid level and temperature information of the water in the water storage structure; a conveying structure installed on the water storage structure for conveying water to be heated to the water storage structure and conveying the heated water in the water storage structure to industrial production equipment; and a controller connected to the heating structure, the sensor structure, and the conveying structure, wherein the controller receives the liquid level and temperature information, and when it is determined that the liquid level in the water storage structure is lower than a preset liquid level value, controls the conveying structure to replenish water to the water storage structure, and adjusts the heating power of the heating structure when the temperature deviates from a preset temperature value.

[0007] Optionally, the water storage structure includes: a base; a tank body mounted on the base for storing water; and a top cover movably disposed on the top of the tank body for forming a closed inner cavity with the tank body, and for facilitating access to the tank body from the top cover during maintenance.

[0008] Optionally, the heating structure includes: a plurality of heating tubes, which are evenly arranged on the bottom plate of the housing, and the plurality of heating tubes are connected to the controller; wherein the controller is also used to control the heating power of the heating tubes.

[0009] Optionally, the sensor structure includes: a liquid level sensor, which is installed on the first side wall of the tank and connected to the controller; the liquid level sensor is used to monitor the water level in the tank and send the monitored liquid level information to the controller; and a temperature sensor, which is installed on the first side wall and connected to the controller; the temperature sensor is used to monitor the water temperature in the tank and send the monitored temperature information to the controller.

[0010] Optionally, the conveying structure includes: a water inlet, which is installed on the second side wall of the housing and connected to an external water supply device; the water inlet is used to convey water from the external water supply device into the housing; and a water supply outlet, which is installed at the bottom of the first side wall of the housing and is used to convey heated water from the housing to industrial production equipment; wherein, a first solenoid valve is installed on the water inlet, the first solenoid valve is connected to the controller, and the controller is used to control the opening and closing of the water inlet by controlling the opening and closing of the first solenoid valve; the first side wall is opposite to the second side wall.

[0011] Optionally, the intelligent constant temperature hot water tank further includes: a drain outlet, which is disposed on the second side wall and is used to drain water from the tank; and a return outlet, which is disposed on the first side wall and is used to recover the remaining hot water from the industrial production equipment.

[0012] A second solenoid valve is installed on the drain outlet. The second solenoid valve is connected to the controller. The controller is also used to control the second solenoid valve to open when the water level in the tank exceeds the limit value.

[0013] Optionally, the intelligent constant temperature hot water tank further includes: an audible and visual alarm, which is connected to a controller; the controller is also used to control the audible and visual alarm to sound an alarm and flash when it is determined that the water level in the tank exceeds the limit level value or the temperature exceeds the limit temperature value.

[0014] Optionally, the intelligent constant temperature hot water tank further includes:

[0015] An overflow port is provided on the upper part of the second side wall. The overflow port is used to drain water from the tank when the water level in the tank reaches the position of the overflow port.

[0016] Optionally, the intelligent constant temperature hot water tank further includes a mechanical thermometer, which is installed on the first side wall and is used to display the temperature of the water inside the tank.

[0017] Optionally, the intelligent constant temperature hot water tank further includes: a heat pipe power supply wiring compartment, which is sealed at the bottom of the tank body and fits against the third side wall of the tank body; the heat pipe power supply wiring compartment is used to arrange the power supply lines for multiple heating pipes.

[0018] This utility model discloses an intelligent constant temperature hot water tank, comprising: a water storage structure for storing water; a heating structure disposed on the water storage structure for heating the water in the water storage structure; a sensor structure installed on the water storage structure for monitoring the liquid level and temperature information of the water in the water storage structure; a conveying structure installed on the water storage structure for conveying water to be heated to the water storage structure and conveying the heated water in the water storage structure to industrial production equipment; a controller receiving the liquid level and temperature information, and controlling the conveying structure to replenish water to the water storage structure when the liquid level in the water storage structure is determined to be lower than a preset liquid level value, and adjusting the heating power of the heating structure when the temperature deviates from a preset temperature value. Thus, the water storage tank serves as the basic container, and together with the sensor structure, it monitors the water level and temperature changes in the tank in real time and transmits the data to the controller. The controller dynamically adjusts the heating structure to ensure that the water supply temperature is always at the preset value. On the other hand, through automatic water replenishment and heating control, the intelligent constant temperature hot water tank can autonomously complete the constant temperature water supply in an unattended state, which not only reduces the uncertainty caused by human intervention, but also significantly improves the operational reliability and safety of industrial production processes, and realizes full-process automated control. Attached Figure Description

[0019] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0020] Figure 1 This is a schematic diagram of an optional intelligent constant temperature hot water tank structure according to an embodiment of the present utility model;

[0021] Figure 2This is a front view of an optional intelligent constant temperature hot water tank according to an embodiment of the present utility model;

[0022] Figure 3 This is a left view of an optional intelligent constant temperature hot water tank according to an embodiment of the present utility model;

[0023] Figure 4 This is a right view of an optional intelligent constant temperature hot water tank according to an embodiment of the present utility model;

[0024] Figure 5 This is a rear view of an optional intelligent constant temperature hot water tank according to an embodiment of the present utility model;

[0025] Figure 6 This is a top view of an optional intelligent constant temperature hot water tank according to an embodiment of the present utility model.

[0026] Figure label:

[0027] 10. Water storage structure; 11. Base; 12. Box body; 13. Top cover; 20. Heating structure; 21. Heating tube; 30. Sensor structure; 31. Liquid level sensor; 32. Temperature sensor; 40. Conveying structure; 41. Water inlet; 42. Water supply outlet; 50. Water outlet; 60. Water return outlet; 70. Overflow outlet; 80. Mechanical thermometer mounting port; 90. Heat pipe power supply wiring compartment; 100. Temperature switch; 110. Drain outlet; 120. Cable inlet. Detailed Implementation

[0028] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0029] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, an intelligent constant temperature hot water tank includes:

[0030] Water storage structure 10, the water storage structure 10 being used to store water;

[0031] A heating structure 20 is disposed on the water storage structure 10 and is used to heat the water in the water storage structure 10;

[0032] The sensor structure 30 is installed on the water storage structure 10 and is used to monitor the water level and temperature information in the water storage structure 10.

[0033] A conveying structure 40 is installed on the water storage structure 10 and is used to convey water to be heated to the water storage structure 10 and to convey the heated water in the water storage structure 10 to industrial production equipment.

[0034] The controller is connected to the heating structure 20, the sensor structure 30 and the conveying structure 40 respectively. The controller is used to receive the liquid level information and the temperature information, and when it is determined that the liquid level in the water storage structure 10 is lower than the preset liquid level value, it controls the conveying structure 40 to replenish water to the water storage structure 10, and adjusts the heating power of the heating structure 20 when the temperature deviates from the preset temperature value.

[0035] Specifically, the intelligent constant-temperature hot water tank consists of a water storage structure 10, a heating structure 20, a sensor structure 30, a conveying structure 40, and a controller. The water storage structure 10 stores water. The heating structure 20, installed on the water storage structure 10, heats the water within. The sensor structure 30 monitors the liquid level and water temperature in the tank in real time and transmits the data to the controller. The conveying structure 40 replenishes the tank with water to be heated and delivers the heated water to industrial production equipment. The controller integrates a PLC program. The sensor structure 30 transmits the liquid level and temperature signals from the water storage structure 10 to the controller in real time. Based on the built-in PLC program, the controller uses a modified PID algorithm to dynamically calculate the received temperature and liquid level signals, thereby determining the required heating power.

[0036] In the control logic of an intelligent constant-temperature hot water tank, the coordinated calculation of liquid level and temperature is the core of achieving precise temperature control. The controller dynamically adjusts the heating power by collecting liquid level and temperature signals in real time, combined with preset liquid level thresholds and temperature targets. This process is essentially based on the fusion of thermodynamic models and feedback control. The liquid level directly determines the volume of water in the tank, thus affecting the system's heat capacity. When the liquid level decreases, the heat capacity decreases, and the temperature rise rate per unit power is faster. At this time, the heating power needs to be reduced to avoid overshoot; conversely, when the liquid level rises, the power needs to be increased to maintain heating efficiency. The integral term gain of the improved PID algorithm can be dynamically adjusted according to the liquid level. Through this adaptive parameter design, the controller can compensate for the impact of liquid level fluctuations on thermal inertia. When water replenishment is triggered when the liquid level is lower than the preset value, the added cold water will introduce instantaneous thermal disturbances. At this time, the controller needs to combine the liquid level change rate and the water replenishment flow rate to increase the heating power in advance through feedforward control. During steady-state operation, the closed-loop linkage of the controller between liquid level, temperature, and power enables the system to maintain a stable water temperature even under multiple disturbances such as water replenishment, heat dissipation, and heating.

[0037] If the liquid level is detected to be lower than the set value, the controller will activate the control conveying structure 40 to perform water replenishment according to the program instructions; and when the temperature deviates from the preset temperature value, the controller will adjust the power of the heating structure 20 to ensure that the water temperature is stable within a suitable range.

[0038] In summary, on the one hand, the water storage structure 10 in this application serves as the basic container, which, together with the high-precision sensor structure 30, monitors the changes in water level and temperature in the tank in real time and transmits the data to the controller. The controller dynamically adjusts the heating structure 20 based on the PID algorithm to keep the output water temperature at the preset temperature value. On the other hand, through automatic water replenishment and heating control, the device can autonomously complete the task of constant temperature water supply in an unattended state, which not only reduces the uncertainty caused by human intervention, but also significantly improves the operational reliability and safety of industrial production processes, and realizes full-process automated control.

[0039] In one possible implementation, the water storage structure 10 includes: a base 11; a tank 12 mounted on the base 11 for storing water; and a top cover 13 movably disposed on the top of the tank 12 for forming a closed inner cavity with the tank 12 and for facilitating access to the tank 12 from the top cover 13 during maintenance.

[0040] Specifically, the base 11 includes brackets welded to both sides below the box 12 to support the box 12 and reduce heat exchange between the hot water inside the box and the ground.

[0041] On one hand, the base 11 serves as a support component, ensuring the stable placement of the tank 12. On the other hand, the brackets are located on both sides below the tank to reduce unnecessary heat exchange between the hot water inside the tank and the ground. The tank 12 is made of stainless steel, and a top cover 13 is installed on the top of the tank 12. The top cover 13 can be opened and closed, forming a closed internal cavity with the tank 12 when closed. This effectively prevents dust and foreign objects from falling in and contaminating the water, and it can also be quickly opened for maintenance of internal components. A handle is installed on the top cover 13 for easy opening and closing.

[0042] In one possible implementation, the heating structure 20 includes:

[0043] Multiple heating tubes 21 are evenly arranged on the bottom plate of the housing 12, and the multiple heating tubes 21 are connected to the controller;

[0044] The controller is also used to control the heating power of the plurality of heating tubes 21.

[0045] Specifically, the heating structure 20 converts electrical energy into internal energy, which exchanges heat with the water inside the tank, raising the water temperature to heat the water in the tank 12. The heating structure 20 consists of multiple heating tubes 21 evenly arranged on the bottom plate of the tank 12. Each heating tube 21 is connected to a controller to form a closed-loop control system, ensuring uniform water temperature distribution and preventing localized overheating or undercooling. Based on real-time water temperature data fed back by the sensor structure 30, the controller dynamically adjusts the power output of the heating tubes 21. When the water temperature is below a preset value, the heating power is automatically increased; when it approaches the target temperature, the power is reduced, providing a stable and reliable constant-temperature hot water supply for industrial production. The heating tubes 21 use stainless steel armored resistance wire, evenly distributed at the bottom of the tank 12, and their power is adjusted by the heat pipe driver based on the analog signal output by the controller. In addition, multiple heating elements 21 are connected to the temperature switch 100 via power supply lines. The temperature switch 100 is located on the side wall of the housing 12. The opening and closing of the temperature switch 100 controls whether the heating elements 21 are powered. When there is no water in the housing 12, the temperature switch 100 is turned off to prevent the heating elements 21 from burning dry.

[0046] In one possible implementation, the sensor structure 30 includes:

[0047] A liquid level sensor 31 is installed on the first side wall of the tank 12 and connected to the controller; the liquid level sensor 31 is used to monitor the water level in the tank 12 and send the monitored liquid level information to the controller.

[0048] Temperature sensor 32 is installed on the first side wall and connected to the controller; temperature sensor 32 is used to monitor the water temperature inside the tank 12 and send the monitored temperature information to the controller.

[0049] Specifically, the liquid level sensor 31 adopts an integrated design of a magnetic float liquid level sensor and a 4-20mA signal output. The measuring tube of the liquid level sensor 31 is not in direct contact with the first side wall. The measuring tube is connected to the inside of the tank 12 through connecting tubes at both ends. The measuring tube displays the liquid level in real time and outputs an electronic signal to the controller. The temperature sensor 32 is located in the middle of the first side wall and adopts a PT-100 platinum resistance thermometer. Its probe is in direct contact with the water inside the tank 12. The monitoring signal of the temperature sensor 32 is converted into a standard current signal by a transmitter and input to the controller.

[0050] In one possible implementation, the conveying structure 40 includes:

[0051] Water inlet 41 is installed on the second side wall of the housing 12 and is connected to an external water supply device; the water inlet 41 is used to transport water from the external water supply device into the housing 12.

[0052] Water supply port 42 is installed at the bottom of the first side wall of the tank 12 and is used to transport heated water in the tank 12 to industrial production equipment.

[0053] The inlet 41 is equipped with a first solenoid valve, which is connected to the controller. The controller controls the opening and closing of the inlet 41 by controlling the opening and closing of the first solenoid valve. The first sidewall is opposite to the second sidewall.

[0054] Specifically, the water inlet 41 is installed below the second side wall of the tank 12. The water inlet 41 is connected to an external water supply device via a pipe, and the external water supply device sequentially injects heated softened water into the tank 12 through the pipe and the water inlet 41; wherein, the water inlet 41 is controlled by a solenoid valve. The water supply inlet 42 is installed at the bottom of the side wall of the tank 12 and is connected to industrial production equipment through an insulated pipe, and the heated water in the tank 12 is sequentially transported to the production equipment at the industrial production site through the water supply inlet 42 and the corresponding insulated pipe.

[0055] The inlet 41 is located below the second side wall of the tank 12 and is connected to the external water supply device. A first solenoid valve installed on it is controlled by a controller to ensure automated water replenishment. The bottom inlet design allows the newly added water to mix thoroughly with the existing hot water in the tank, preventing localized water temperature stratification. The outlet 42 is located at the bottom of the first side wall, forming a diagonal layout with the inlet. This allows the hot water to fully utilize natural convection to complete internal circulation, and the heated hot water flows out evenly from the bottom, preventing uneven water temperature caused by localized stagnation. The controller, by adjusting the opening of the first solenoid valve, can not only quickly respond to water level changes for precise water replenishment but also dynamically adjust the water inflow in conjunction with the operating status of the heating structure 20 to maintain a stable water level. This synergistic effect reduces manual intervention and optimizes water circulation efficiency through physical layout, ensuring that industrial production equipment receives a constant-temperature water supply with uniform temperature and stable flow. It also reduces heat loss caused by water flow impact, improving the overall system's energy utilization and operational reliability.

[0056] In one possible implementation, the intelligent constant temperature hot water tank further includes:

[0057] A drain outlet 50 is provided on the second side wall and is used to drain water from the tank 12.

[0058] A return water inlet 60 is provided on the first side wall and is used to recover the residual hot water from the industrial production equipment.

[0059] A second solenoid valve is installed on the drain outlet 50. The second solenoid valve is connected to the controller. The controller is also used to control the second solenoid valve to open when the water level in the tank 12 exceeds the limit value.

[0060] Specifically, the drain outlet 50 is located at the lower center of the rear part of the second side wall, connected to a DN50 drain pipe, allowing for rapid water discharge when the water level in the tank needs to be lowered. The return outlet 60 is located in the middle of the first side wall, facilitating the recovery and reheating of residual hot water from industrial equipment. The controller monitors the water level in real time via the level sensor 31. When the level exceeds the limit, it immediately controls the second solenoid valve to open the drain outlet to drain water, preventing safety hazards caused by excessively high water levels. The return outlet also recovers and reuses the heat from the hot water, improving energy efficiency. Furthermore, when the controller adjusts the heating power of the heating element 21, the heat from the recovered hot water is added. The synergistic effect of the drain outlet 50 and the return outlet 60 enables the water tank to accurately control the water level to prevent overflow accidents and achieve heat energy recycling, significantly improving the system's safety and energy efficiency. Simultaneously, it maintains a uniform and stable water temperature, providing reliable support for industrial production.

[0061] The water supply outlet 42 and the return outlet 60 are connected to the industrial production equipment through insulated pipes to form a closed loop.

[0062] In one possible implementation, the intelligent constant temperature hot water tank further includes:

[0063] An audible and visual alarm is provided, which is connected to a controller. The controller is also used to control the audible and visual alarm to sound an alarm and flash when it is determined that the water level in the tank 12 exceeds the limit level value or the temperature exceeds the limit temperature value.

[0064] Specifically, the audible and visual alarm is installed in a prominent position on the outside of the enclosure 12 and is connected to the controller via a signal cable. When the controller detects that the water level reported by the level sensor 31 exceeds the limit value, or the water temperature detected by the temperature sensor 32 exceeds the limit temperature value (the limit temperature value is a range including a minimum and a maximum temperature), the controller will immediately trigger the audible and visual alarm when the water temperature is below the minimum or above the maximum. The alarm simultaneously emits a high-frequency buzzing sound and a flashing red light. The buzzing sound has strong penetrating power and can attract the attention of workers in noisy industrial environments; the flashing light has long-distance visibility and can quickly identify abnormal conditions even at night or when visibility is obstructed.

[0065] In one possible implementation, the intelligent constant temperature hot water tank further includes:

[0066] An overflow port 70 is provided on the upper part of the second side wall. The overflow port 70 is used to discharge water from the tank 12 when the water level in the tank 12 reaches the position of the overflow port 70.

[0067] Specifically, the overflow port 70 is located at the uppermost part of the second side wall and is connected to a DN80 overflow pipe. The liquid level corresponding to its location is the maximum safe liquid level, i.e., the limit liquid level. The overflow port 70, together with the controller, the liquid level sensor 31, and the second solenoid valve, constitute a three-level linkage redundant protection system. When the liquid level reaches the position of the overflow port 70, water in the tank 12 flows out from the overflow port 70. If the liquid level in the tank 12 continues to rise until it exceeds the limit liquid level value, the controller opens the second solenoid valve to control the drain port 50 to drain water and simultaneously issues an alarm.

[0068] In addition, a drain outlet 110 is provided at the bottom of the second side wall. When cleaning the inside of the box 12, sewage is discharged from the drain outlet 110.

[0069] In one possible implementation, the intelligent constant temperature hot water tank further includes:

[0070] A mechanical thermometer is installed on the first side wall to display the temperature of the water inside the tank 12.

[0071] Specifically, the mechanical thermometer is a high-precision bimetallic thermometer, installed near the center of the first sidewall via the mechanical thermometer mounting port 80, for displaying the water temperature inside the tank 12 in the industrial production environment. As a direct temperature indicator, the mechanical thermometer can read the water temperature at any time without relying on electricity. It is particularly suitable for quickly checking the temperature status during equipment inspections, or as a backup monitoring method in case of electronic system failure. It requires no external power supply, has extremely high reliability, and is easy for operators to observe. Complementing the controller display screen, it makes temperature monitoring more comprehensive and reliable, providing dual safety guarantees for industrial production.

[0072] In one possible implementation, the intelligent constant temperature hot water tank further includes:

[0073] The heat pipe power supply wiring compartment 90 is sealed inside the bottom of the box 12 and fits against the third side wall of the box 12; the heat pipe power supply wiring compartment 90 is used to arrange the power supply lines of multiple heating pipes 21.

[0074] Specifically, the heat pipe power supply wiring compartment 90 is located inside the housing 12, and the portion within the housing 12 is sealed. The third sidewall is located between the first and second sidewalls, with the sidewall along the length of the heat pipe power supply wiring compartment 90 closely attached to the third sidewall and located at the bottom of the third sidewall, forming an independent safety area. Multiple power supply lines for the heating pipes 21 are arranged within the heat pipe power supply wiring compartment 90. This centralized wiring layout is more compact and rational, reducing line loss and electromagnetic interference. An inlet hole 120 is provided on the end face of the heat pipe power supply wiring compartment 90 for the power supply line to enter the compartment.

[0075] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An intelligent constant temperature hot water tank, characterized in that, include: A water storage structure (10) for storing water; A heating structure (20) is provided on the water storage structure (10) for heating the water in the water storage structure (10); A sensor structure (30) is installed on the water storage structure (10) for monitoring the water level and temperature information in the water storage structure (10); A conveying structure (40) is installed on the water storage structure (10) for conveying water to be heated to the water storage structure (10) and conveying the heated water in the water storage structure (10) to industrial production equipment; The controller is connected to the heating structure (20), the sensor structure (30) and the conveying structure (40) respectively. The controller is used to receive the liquid level information and the temperature information, and when it is determined that the liquid level in the water storage structure (10) is lower than the preset liquid level value, it controls the conveying structure (40) to replenish water to the water storage structure (10), and adjusts the heating power of the heating structure (20) when the temperature deviates from the preset temperature value. The water storage structure (10) includes: Base (11); A housing (12) is mounted on the base (11) and is used to store water; Top cover (13), the top cover (13) is movably disposed on the top of the box (12), the top cover (13) is used to form a closed inner cavity with the box (12), and to facilitate access to the box (12) from the top cover (13) during maintenance; The conveying structure (40) includes: Water inlet (41) is installed on the second side wall of the housing (12) and is connected to an external water supply device; the water inlet (41) is used to transport water from the external water supply device into the housing (12); Water supply port (42), the water supply port (42) is used to transport the heated water in the tank (12) to the industrial production equipment; The inlet (41) is equipped with a first solenoid valve, which is connected to the controller. The controller controls the opening and closing of the inlet (41) by controlling the opening and closing of the first solenoid valve.

2. The intelligent constant temperature hot water tank according to claim 1, characterized in that, The heating structure (20) includes: Multiple heating tubes (21) are evenly arranged on the bottom plate of the housing (12), and the multiple heating tubes (21) are connected to the controller; The controller is also used to control the heating power of the heating tube (21).

3. The intelligent constant temperature hot water tank according to claim 1, characterized in that, The sensor structure (30) includes: A liquid level sensor (31) is installed on the first side wall of the tank (12) and connected to the controller; the liquid level sensor (31) is used to monitor the water level in the tank (12) and send the monitored liquid level information to the controller; Temperature sensor (32) is installed on the first side wall and connected to the controller; the temperature sensor (32) is used to monitor the water temperature inside the tank (12) and send the monitored temperature information to the controller.

4. The intelligent constant temperature hot water tank according to claim 3, characterized in that, The water inlet (42) is installed at the bottom of the first side wall of the housing (12), and the first side wall is opposite to the second side wall.

5. The intelligent constant temperature hot water tank according to claim 4, characterized in that, The intelligent constant temperature hot water tank also includes: A drain outlet (50) is provided on the second side wall and is used to drain water from the tank (12). A return water inlet (60) is provided on the first side wall and is used to recover the remaining hot water from the industrial production equipment. The drain outlet (50) is equipped with a second solenoid valve, which is connected to the controller. The controller is also used to control the second solenoid valve to open when the water level in the tank (12) exceeds the limit level value.

6. The intelligent constant temperature hot water tank according to claim 5, characterized in that, The intelligent constant temperature hot water tank also includes: An audible and visual alarm is connected to a controller; the controller is also used to control the audible and visual alarm to issue an alarm and flash when it is determined that the water level in the tank (12) exceeds the limit level value or the temperature exceeds the limit temperature value.

7. The intelligent constant temperature hot water tank according to claim 5, characterized in that, The intelligent constant temperature hot water tank also includes: Overflow port (70) is located on the upper part of the second side wall. The overflow port (70) is used to discharge water from the tank (12) when the water level in the tank (12) reaches the position of the overflow port (70).

8. The intelligent constant temperature hot water tank according to claim 3, characterized in that, The intelligent constant temperature hot water tank also includes: A mechanical thermometer is installed on the first side wall to display the temperature of the water inside the tank (12).

9. The intelligent constant temperature hot water tank according to claim 2, characterized in that, The intelligent constant temperature hot water tank also includes: The heat pipe power supply wiring compartment (90) is sealed at the bottom of the box (12) and fits against the third side wall of the box (12); the heat pipe power supply wiring compartment (90) is used to arrange the power supply lines of multiple heating pipes (21).

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