Liquid medium heating power adjusting constant temperature device and control method thereof

Abstract

A liquid medium heating power adjusting constant temperature device comprises a liquid medium heating box, a sensor module, a control module and a power adjusting module. The liquid medium heating box is used for containing a liquid medium and heating the liquid medium; the sensor module is arranged in the liquid medium heating box and is used for monitoring the temperature and the pressure of the liquid medium; the control module is in communication connection with the sensor module and is used for acquiring the temperature and pressure of the liquid medium from the sensor module and generating a heating power control instruction according to the temperature and pressure; the power adjusting module is in communication connection with the control module and the liquid medium heating box and used for adjusting the heating power of the liquid medium heating box according to the heating power control instruction so as to adjust the temperature of the liquid medium.

Description

Technical Field

[0001] The invention relates to the field of thermal management and temperature control, and in particular to a liquid medium heating power regulating constant temperature device and a control method thereof. Background Art

[0002] With the increasing growth of social science and technology, along with the rapid development of new energy, the energy storage industry is constantly expanding, so the energy storage industry testing equipment industry is also rising, and liquid medium heating power regulation is also favored by people. The liquid medium heating power regulation thermostat mainly monitors the temperature rise, pressure and flow rate of the liquid, so as to evaluate the heat exchange performance of the product, so as to ensure the product's tolerance to various environments. The energy storage industry needs to evaluate the heat exchange performance, because the heat exchange performance is a key indicator to measure the thermal management efficiency of the energy storage system, which directly affects the energy efficiency, stability and safety of the system. The main objects of the evaluation are energy storage batteries and their thermal management systems. The heat exchange performance of these products determines whether the battery can work within the optimal temperature range, which in turn affects the battery life and system performance. Furthermore, the use of liquid medium heating power regulation thermostat is to achieve precise control of the temperature of the energy storage system. The device can flexibly adjust the flow and temperature of the liquid according to different working conditions and needs, thereby optimizing the thermal management effect and improving the overall energy efficiency of the energy storage system. Therefore, in the energy storage industry, it is crucial to evaluate the heat exchange performance and use liquid multi-power regulation devices.

[0003] Traditional liquid medium heating power adjustment thermostats usually use a single power for heating, which results in inaccurate temperature control during the heating process and is difficult to meet application scenarios with strict temperature requirements. Since the heating power is not adjustable or the adjustment range is limited, traditional devices are prone to temperature fluctuations during the heating process, affecting the heating effect and the stability of the liquid medium. The single power heating method consumes a lot of energy in the early stage of heating to quickly increase the temperature of the liquid medium, and in the later stage of heating, it may cause energy waste due to excessive power.

[0004] Therefore, how to enable the liquid medium heating power regulating constant temperature device to flexibly adjust the heating power according to actual needs to achieve a more precise temperature control effect is an urgent problem to be solved. Summary of the invention

[0005] The purpose of the present invention is to provide a liquid medium heating power regulating constant temperature device and a control method thereof to address the corresponding deficiencies of the prior art, so as to achieve a more precise temperature control effect through actual demand and real-time power adjustment.

[0006] The objective of the present invention is achieved by adopting the following scheme: The embodiment of the first aspect of the present invention provides a liquid medium heating power regulating constant temperature device, including a liquid medium heating box, a sensor module, a control module, and a power regulating module; The liquid medium heating box is used to contain the liquid medium and heat the liquid medium; The sensor module is installed in the liquid medium heating box to monitor the temperature and pressure of the liquid medium; The control module is in communication connection with the sensor module, and is used to obtain the temperature and pressure of the liquid medium from the sensor module, and generate a heating power control instruction according to the temperature and pressure; The power regulating module is communicatively connected with the control module and the liquid medium heating box, and is used to regulate the heating power of the liquid medium heating box according to the heating power control instruction, so as to regulate the temperature of the liquid medium.

[0007] The liquid medium heating box includes a plurality of main heaters for heating the liquid medium. The plurality of main heaters are installed in the liquid medium heating box along a preset spiral medium flow path.

[0008] Furthermore, the control module is also used to selectively start or shut down at least one of the multiple main heaters through the power regulation module according to a preset liquid medium target temperature or a current liquid medium residual amount.

[0009] Furthermore, the liquid medium heating power regulating constant temperature device also includes a liquid replenishing tank connected to the liquid medium heating box and used for replenishing the liquid medium in the liquid medium heating box.

[0010] Furthermore, the liquid medium heating power regulating constant temperature device also includes a flow regulating module, which is fluidically connected between the liquid replenishing tank and the liquid medium heating box and is used to regulate the flow of the liquid medium replenished by the liquid replenishing tank to the liquid medium heating box.

[0011] Furthermore, the liquid medium heating power regulating constant temperature device also includes a temperature equalizing module connected to the fluid of the liquid medium heating box, and the temperature equalizing module includes a medium flow pump for driving the liquid medium to form a circulating flow in the liquid medium heating box and the temperature equalizing module, so that the temperature of the liquid medium in each area of ​​the liquid medium heating box remains balanced.

[0012] Furthermore, the liquid medium heating power regulating constant temperature device also includes an auxiliary heater, which is arranged between the liquid medium heating box and the medium flow pump, and is used to heat the liquid medium when the ambient temperature is lower than a preset low temperature protection threshold.

[0013] Furthermore, the liquid medium heating power regulating constant temperature device also includes a sheet metal shell, which accommodates the liquid medium heating box, the sensor module, the control module, the power regulating module, the flow regulating module, the temperature equalizing module and the auxiliary heater.

[0014] Furthermore, the liquid medium heating power regulating constant temperature device also includes a protection switch, which is fixed on the sheet metal housing and electrically connected to the control module.

[0015] The second aspect of the present invention provides a control method for a liquid medium heating power regulating thermostat, which can be applied to the above-mentioned liquid medium heating power regulating thermostat, and the method comprises the following steps: S1, placing a liquid medium in the liquid medium heating box of the liquid medium heating power regulating constant temperature device, and heating the liquid medium; S2, monitoring the temperature and pressure of the liquid medium in the liquid medium heating box; S3, generating a heating power control instruction according to the temperature and pressure; S4, adjusting the heating power of the liquid medium heating box according to the heating power control instruction to adjust the temperature of the liquid medium.

[0016] The present invention provides a liquid medium heating power regulating thermostat and a corresponding control method. The main advantages of the liquid medium heating power regulating thermostat and the control method thereof are: through real-time power regulation technology, the heating power can be flexibly adjusted according to actual needs to achieve a more accurate temperature control effect; through the actual heat exchange power obtained by accurately calculating the flow rate and the temperature difference, the intuitive display and precise control of the thermal power are realized, which greatly improves the user's operation convenience and significantly improves the work efficiency; the method of sensing the applied power is adopted to ensure the consistency of the set power consumption and the actual power consumption, and the power regulation module is used to achieve accurate control of the power consumption; through the close cooperation of the sensor and the control instrument, the solid-state relay and the heater, the closed-loop control of the temperature is realized, and the consistency of the actual temperature and the set temperature is ensured, thereby improving the stability and accuracy of the heating system. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a functional module block diagram of a liquid medium heating power regulating constant temperature device according to an embodiment of the present invention; Figure 2 It is a schematic diagram of the three-dimensional structure of the liquid medium heating power regulating constant temperature device according to an embodiment of the present invention; Figure 3It is a three-dimensional structural schematic diagram of the liquid medium heating power regulating constant temperature device in another viewing angle after the liquid medium heating box is removed according to an embodiment of the present invention; Figure 4 The present invention is a flow chart of a method for controlling a liquid medium heating power regulating thermostatic device according to an embodiment of the present invention. DETAILED DESCRIPTION

[0018] The embodiment of the first aspect of the present invention provides a liquid medium heating power regulating thermostat device which can be applied to the chemical industry. The device can accurately control the temperature of the liquid medium in the reactor to ensure that the chemical reaction is carried out under the optimal temperature conditions, thereby improving product quality and production efficiency. In the pharmaceutical process, many chemical reactions and material treatments need to be carried out at a specific temperature. The device can accurately control the temperature of the reaction medium to ensure stability and consistency in the drug production process. In addition, the device is also applicable to industries such as food processing, and can meet the demand for accurate control of the temperature of the liquid medium.

[0019] like Figure 1-Figure 3 As shown, a preferred embodiment of the first aspect of the present invention provides a liquid medium heating power regulating constant temperature device, including a liquid medium heating box 300, a sensor module 400, a control module 500, and a power regulating module 600.

[0020] The liquid medium heating box 300 is used to hold the liquid medium and heat the liquid medium. The liquid medium heating box 300 includes a plurality of main heaters 310 for heating the liquid medium, and the plurality of main heaters 310 are installed in the liquid medium heating box 300 along a preset spiral medium flow path. The liquid medium heating box 300 adopts a quick-install threaded interface (female end), and the heater inlet end has a customized threaded interface (male end) for inserting into the quick-install threaded interface (female end) of the liquid medium heating box 300 to achieve a sealed connection. In this embodiment, the plurality of main heaters 310 preferably use 5 6KW heaters, and of course, their number and model can be changed in other embodiments.

[0021] The sensor module 400 is installed in the liquid medium heating box 300 to monitor the temperature and pressure of the liquid medium and provide accurate data support for the control module 500. These data can be used to evaluate the state of the heating process and ensure that the heating process is carried out under safe and stable conditions.

[0022] The control module 500 is in communication with the sensor module 400, and is used to obtain the temperature and pressure of the liquid medium from the sensor module 400, and generate a heating power control instruction according to the temperature and pressure. This intelligent control method improves the flexibility and response speed of the heating process, and can adjust the heating power according to the state of the liquid medium.

[0023] The power adjustment module 600 is in communication with the control module 500 and the liquid medium heating box 300, and is used to adjust the heating power of the liquid medium heating box 300 according to the heating power control instruction to adjust the temperature of the liquid medium. The heating power is adjusted according to real-time data so that the temperature of the liquid medium can be accurately controlled.

[0024] The control module 500 is further configured to selectively start or shut down at least one of the plurality of main heaters 310 through the power regulation module 600 according to a preset target temperature of the liquid medium or a current residual amount of the liquid medium.

[0025] The control module 500 monitors the actual temperature of the liquid medium in the heating box in real time through the sensor module 400 according to the preset target temperature of the liquid medium, calculates the error between the target temperature and the actual temperature, and adjusts the output of the main heater 310 according to the PID operation result. When the sensor module 400 detects that the actual temperature of the liquid medium is lower than the lower limit of the target temperature, the control module 500 will start the main heater through the power adjustment module 600 to start the heating process. When the actual temperature of the liquid medium reaches or exceeds the upper limit of the target temperature, the control module 500 will immediately turn off or reduce the power of the main heater 310 through the power adjustment module 600 to prevent overheating.

[0026] When the remaining amount of the liquid medium is insufficient, that is, the liquid level is lower than the preset safety threshold, the control module 500 will shut down all or part of the main heaters 310 through the power adjustment module 600 to prevent the main heaters 310 that are not immersed in the liquid medium from dry burning. When the remaining amount of the liquid medium returns to a safe range, the control module 600 will restart the main heaters 310 to resume the heating process.

[0027] The control module 500 includes a control meter, a solid-state relay and a controller. The controller receives the signal of the sensor module 400 and adjusts the heating power of the main heater 310 through the control meter and the solid-state relay according to the difference between the preset target temperature and the actual temperature, so as to achieve the consistency between the actual temperature of the liquid medium and the set temperature. The user can view the power consumption of the device in real time through the controller or related interface, and adjust the power size as needed.

[0028] The liquid medium heating power regulating constant temperature device further includes a liquid replenishing tank 100 connected to the liquid medium heating box 300 for replenishing the liquid medium in the liquid medium heating box 300. The capacity of the liquid replenishing tank 100 is 100 L. The liquid replenishing tank replenishes the liquid medium to the liquid medium heating box 300 through the water inlet 2.

[0029] The liquid medium heating power regulating constant temperature device further comprises a flow regulating module 200, which is fluidically connected between the liquid replenishing tank 100 and the liquid medium heating box 300, and is used to regulate the flow rate of the liquid replenishing tank 100 replenishing the liquid medium to the liquid medium heating box 300. The liquid medium heating box is preferably a 90L liquid medium heating box, and the capacity of the liquid medium inside the liquid medium can be accurately adjusted within the range of 30 liters to 90 liters.

[0030] The flow control module 500 includes a flow meter 210 and a regulating valve 220. The flow meter 210 is installed on the pipeline 4 between the liquid replenishment tank 100 and the liquid medium heating tank 300, close to the water inlet 2, and is used to monitor and record the flow of the liquid medium entering the liquid medium heating tank 300 in real time.

[0031] The regulating valve 220 is installed on the pipeline 4 between the liquid replenishing tank 100 and the liquid medium heating box 300, and is located after the flow meter 210, and is used to adjust the opening of the valve body according to the reading of the flow meter 210 to achieve precise control of the liquid medium flow.

[0032] The liquid medium heating power regulating constant temperature device also includes a temperature equalizing module 700 connected to the liquid medium heating box 300 fluid, and the temperature equalizing module 700 includes a medium flow pump 710, which is used to drive the liquid medium to form a circulation flow in the liquid medium heating box 300 and the temperature equalizing module 700, so as to keep the temperature of the liquid medium in each area of ​​the liquid medium heating box 300 balanced. The medium flow pump 710 is connected to the liquid medium heating box 300 through the pipeline 4, and is used to extract the liquid medium in the liquid medium heating box 300 and transport it back to different positions of the liquid medium heating box 300 through the pipeline 4 to form a circulation flow.

[0033] The liquid medium heating power regulating thermostatic device also includes an auxiliary heater 800, which is arranged between the liquid medium heating box 300 and the medium flow pump 710 and placed on the shelf 5, and is used to heat the liquid medium when the ambient temperature is lower than the preset low temperature protection threshold, which helps to protect related components from low temperature damage. The auxiliary heater 800 includes a built-in filter for removing impurities and particulate matter in the liquid medium, and the liquid medium is further filtered to ensure cleanliness and prevent clogging. The built-in filter is usually installed near the liquid inlet of the auxiliary heater 800, and the heating body is usually installed inside the auxiliary heater 800, connected to the power cord and the control circuit. The auxiliary heater adopts a PCT heater.

[0034] The liquid medium heating power regulating constant temperature device also includes a sheet metal shell 6, which accommodates the liquid medium heating box 300, the sensor module 400, the control module 500, the power regulation module 600, the flow regulation module 200, the temperature equalization module 700 and the auxiliary heater 800.

[0035] Furthermore, the liquid medium heating power regulating thermostat device also includes a protection switch 1, which is fixed on the sheet metal housing 6 and electrically connected to the control module 500. In case of emergency, the power supply of the control module 500 can be quickly cut off by the protection switch 1 to prevent the expansion of the fault and protect people and machines from damage. Through the combination of the sheet metal housing 6 and the protection switch 1, the live parts can be effectively isolated from the human body to reduce the risk of electric shock.

[0036] like Figure 4 As shown, a preferred embodiment of the second aspect of the present invention provides a control method for a liquid medium heating power regulating thermostat, which can be applied to the above-mentioned liquid medium heating power regulating thermostat. In this embodiment, the method includes the following steps: S1, placing a liquid medium in the liquid medium heating box 300 of the liquid medium heating power regulating constant temperature device, and heating the liquid medium; S2, monitoring the temperature and pressure of the liquid medium in the liquid medium heating box 300; S3, generating a heating power control instruction according to the temperature and pressure; S4, adjusting the heating power of the liquid medium heating box 300 according to the heating power control instruction to adjust the temperature of the liquid medium.

[0037] The liquid medium heating power regulating constant temperature device and the corresponding control method provided by the present invention use real-time power regulation technology to flexibly adjust the heating power according to actual needs to achieve a more accurate temperature control effect; by accurately calculating the actual heat exchange power obtained by the flow rate and the temperature difference, the intuitive display and precise control of the thermal power are realized, which greatly improves the user's operation convenience and significantly improves the work efficiency; the method of sensing the applied electric power is adopted to ensure the consistency between the set power consumption and the actual power consumption, and the precise control of the power consumption is achieved through the power regulation module; through the close cooperation of the sensor and the control instrument, the solid-state relay and the heater, the closed-loop control of the temperature is realized to ensure the consistency between the actual temperature and the set temperature, thereby improving the stability and accuracy of the heating system.

Claims

1. A liquid medium heating power regulating constant temperature device, characterized in that: It includes a liquid medium heating box, a sensor module, a control module, and a power regulation module; The liquid medium heating box is used to contain the liquid medium and heat the liquid medium; The sensor module is installed in the liquid medium heating box to monitor the temperature and pressure of the liquid medium; The control module is in communication connection with the sensor module, and is used to obtain the temperature and pressure of the liquid medium from the sensor module, and generate a heating power control instruction according to the temperature and pressure; The power regulating module is communicatively connected with the control module and the liquid medium heating box, and is used to regulate the heating power of the liquid medium heating box according to the heating power control instruction, so as to regulate the temperature of the liquid medium.

2. The liquid medium heating power regulating constant temperature device according to claim 1, characterized in that: The liquid medium heating box includes a plurality of main heaters for heating the liquid medium. The plurality of main heaters are installed in the liquid medium heating box along a preset spiral medium flow path.

3. The liquid medium heating power regulating constant temperature device according to claim 2, characterized in that: The control module is further configured to selectively start or shut down at least one of the plurality of main heaters through the power regulation module according to a preset target temperature of the liquid medium or a current residual amount of the liquid medium.

4. The liquid medium heating power regulating constant temperature device according to claim 1, characterized in that: It also includes a liquid replenishment tank that is connected to the liquid medium heating tank and is used to replenish the liquid medium in the liquid medium heating tank.

5. The liquid medium heating power regulating constant temperature device according to claim 4, characterized in that: It also includes a flow regulating module, which is fluidically connected between the liquid replenishing tank and the liquid medium heating tank and is used to regulate the flow of the liquid medium supplemented by the liquid replenishing tank to the liquid medium heating tank.

6. The liquid medium heating power regulating constant temperature device according to claim 5, characterized in that: It also includes a temperature equalization module connected to the fluid of the liquid medium heating box, and the temperature equalization module includes a medium flow pump for driving the liquid medium to form a circulation flow in the liquid medium heating box and the temperature equalization module to keep the temperature of the liquid medium in each area of ​​the liquid medium heating box balanced.

7. The liquid medium heating power regulating constant temperature device according to claim 6, characterized in that: It also includes an auxiliary heater, which is arranged between the liquid medium heating box and the medium flow pump and is used to heat the liquid medium when the ambient temperature is lower than a preset low-temperature protection threshold.

8. The liquid medium heating power regulating constant temperature device according to claim 1, characterized in that: It also includes a sheet metal shell, which accommodates the liquid medium heating box, the sensor module, the control module, the power regulation module, the flow regulation module, the temperature equalization module and the auxiliary heater.

9. The liquid medium heating power regulating constant temperature device according to claim 8, characterized in that: It also includes a protection switch, which is fixed on the sheet metal housing and electrically connected to the control module.

10. A control method for a liquid medium heating power regulating thermostat, implemented by the liquid medium heating power regulating thermostat as claimed in any one of claims 1 to 9, characterized in that: The following steps are involved: S1, placing a liquid medium in the liquid medium heating box of the liquid medium heating power regulating constant temperature device, and heating the liquid medium; S2, monitoring the temperature and pressure of the liquid medium in the liquid medium heating box; S3, generating a heating power control instruction according to the temperature and pressure; S4, adjusting the heating power of the liquid medium heating box according to the heating power control instruction to adjust the temperature of the liquid medium.

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