A constant temperature room temperature control system based on cold source and heat source

Abstract

The present invention provides a thermostatic chamber temperature regulating system based on a cold source and a heat source, wherein an air inlet and an air outlet are provided on the thermostatic chamber, and a plurality of temperature sensors are arranged in the thermostatic chamber; a heat exchange system is arranged outside the thermostatic chamber, and the heat exchange system comprises a heating structure for providing a heat source, a cooling structure for providing a cold source, and a heat-free throttling structure connected in parallel with each other, the heating structure comprises a heating pipe, a first control valve arranged on the heating pipe, a heat source heat exchanger, and a heat source medium, and the air in the heating pipe exchanges heat with the heat energy provided by the heat source medium in the heat source heat exchanger; the cooling structure comprises a cooling pipe, a second control valve arranged on the cooling pipe, a cold source heat exchanger, and a cold source medium, and the air in the cooling pipe exchanges heat with the cold energy provided by the cold source medium in the cold source heat exchanger; the heat-free throttling structure comprises a heat-free pipe and a third control valve arranged on the heat-free pipe. The system has relatively low layout cost and higher temperature control accuracy and sensitivity.

Description

Technical Field

[0001] The invention belongs to the field of temperature control, and in particular relates to a constant temperature room temperature regulating system based on a cold source and a heat source. Background Art

[0002] Constant temperature rooms are usually achieved by installing air conditioners in closed laboratories. However, as a complete daily commodity, air conditioners cannot be adapted to many situations, so the temperature of the constant temperature room cannot be accurately controlled. Other constant temperature room solutions usually use compressor heat exchange, lay air circulation pipes and temperature monitoring sensors to achieve temperature control in closed spaces. This solution usually requires large construction investment, and there are problems with insufficient temperature control sensitivity and accuracy due to unstable temperature of the heat exchanger.

[0003] Since the resistivity of a conductor is greatly affected by temperature, the high-precision detection of the resistivity of a conductor requires that the detection temperature be constant and controllable, thus placing a higher requirement on the stability of the ambient temperature of the detection laboratory. However, the prior art cannot provide a detection laboratory ambient temperature that meets the requirements.

[0004] In patent 99809644.X "Method and constant temperature device for controlling the temperature in a constant temperature chamber", the airflow is guided to flow through two heat exchangers to reach the ideal temperature, and then introduced into the constant temperature chamber to achieve constant temperature control. In this method, the constant temperature chamber is not completely sealed, and the heating and cooling temperatures of the heat exchanger cannot be accurately controlled, so a two-stage heat exchanger is required to achieve accurate intake air temperature control. Despite this, the temperature of the heat exchange equipment still has the problem of real-time fluctuations due to thermal inertia, which makes the intake air temperature after two-stage heat exchange inaccurate. Based on this, the present invention proposes a cold and heat source heat exchanger with a physically constant temperature to improve the temperature control accuracy of the constant temperature chamber. Summary of the invention

[0005] In order to overcome the disadvantage of insufficient temperature control sensitivity caused by the inconstant temperature of the cold and hot sources in the prior art, a constant temperature control system is provided in which the cold source is based on a solid-liquid mixed phase and the heat source is based on a gas-liquid mixed phase. The constant temperature control system has a relatively low layout cost and higher temperature control accuracy.

[0006] The present invention is achieved by at least one of the following technical solutions.

[0007] A constant temperature room temperature control system based on a cold source and a heat source comprises a constant temperature room, an air intake pipe, a first power device, a heat exchange system and an air outlet pipe.

[0008] An air inlet and an air outlet are provided on the constant temperature chamber, and a plurality of temperature sensors are arranged in the constant temperature chamber;

[0009] The inlet of the air intake pipe is communicated with the air inlet, and the first power device is used to transport the air in the constant temperature room from the air inlet to the heat exchange system through the air intake pipe;

[0010] The heat exchange system includes a heating structure for providing a heat source, a cooling structure for providing a cold source, and a heat-free throttling structure connected in parallel. The heating structure includes a heating pipe, a first control valve arranged on the heating pipe, a heat source heat exchanger, and a heat source medium. The air in the heating pipe exchanges heat with the heat energy provided by the heat source medium in the heat source heat exchanger; the cooling structure includes a cooling pipe, a second control valve arranged on the cooling pipe, a cold source heat exchanger, and a cold source medium. The air in the cooling pipe exchanges heat with the cold energy provided by the cold source medium in the cold source heat exchanger; the heat-free throttling structure includes a heat-free pipe and a third control valve arranged on the heat-free pipe. The inlets of the heating pipe, the heat-free pipe, and the cooling pipe are respectively communicated with the outlet of the air inlet pipe, the outlets of the heating pipe, the cooling pipe, and the heat-free pipe are respectively communicated with the inlet of the air outlet pipe, and the outlet of the air outlet pipe is communicated with the air outlet on the constant temperature chamber.

[0011] Furthermore, there is at least one air inlet and at least one air outlet. The number of air inlets and air outlets can be set according to actual needs, so that the temperature of different positions in the constant temperature room can be controlled in a targeted manner to improve the sensitivity of temperature regulation.

[0012] Furthermore, each air inlet and each air outlet is provided with a control valve. With such a configuration, the opening of the corresponding air inlet and air outlet can be controlled according to the local temperature in the constant temperature room, thereby accurately controlling the temperature of the constant temperature room.

[0013] Furthermore, a plurality of the temperature sensors are evenly distributed in the constant temperature chamber. By arranging the temperature sensors at different positions in the constant temperature chamber, the temperatures at different positions can be measured, so as to realize accurate temperature regulation of the constant temperature chamber.

[0014] Furthermore, an intake air temperature sensor for measuring the intake air temperature is arranged in front of the inlets of the heating pipe, the heat-free pipe and the cooling pipe, and an outlet air temperature sensor for measuring the outlet air temperature is arranged at the outlets of the heating pipe, the heat-free pipe and the cooling pipe.

[0015] Furthermore, the heating structure also includes a first storage element for accommodating the heat source medium, an electric heating rod in contact with the heat source medium to generate a heat source, a heat source input pipeline and a heat source output pipeline, and the first storage element, the heat source input pipeline, the heat source heat exchanger and the heat source output pipeline form a heat source loop.

[0016] Furthermore, the heating structure is also provided with a voltage stabilizing device for stabilizing the voltage of the first storage element.

[0017] Furthermore, it also includes a controller and a voltage stabilization sensor for monitoring the voltage stabilization device, and the voltage stabilization sensor is electrically connected to the controller.

[0018] Furthermore, the cooling structure also includes a second storage component for accommodating the cold source medium, a cold source input pipeline and a cold source output pipeline, and the second storage component, the cold source input pipeline, the cold source heat exchanger and the cold source output pipeline form a cold source loop.

[0019] Furthermore, the cooling structure also includes a second power device, the cold source medium is a solid-liquid mixture, and the second power device is used to make the liquid in the solid-liquid mixture that can provide cold energy flow through the cold source input pipe and the cold source heat exchanger to exchange heat with the air.

[0020] Compared with the prior art, the present invention can achieve at least the following beneficial effects:

[0021] (1) Since the present invention adopts a solid-liquid mixture cooling medium and a liquid-vapor mixture heating medium, the cooling source and the heating source have fixed temperatures, which reduces the variables in the circulating air heat exchange. The circulating air flow temperature is directly controlled by the opening of the control valve, so the outlet air flow temperature can be adjusted quickly and accurately, thereby achieving more accurate and sensitive constant temperature control performance.

[0022] (2) The installation cost of the present invention is relatively low compared to the existing constant temperature control system. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the system structure of the constant temperature room temperature control system of the present invention. DETAILED DESCRIPTION

[0024] In order to make the objectives, technical solutions and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0025] See also Figure 1A constant temperature room temperature control system based on a cold source and a heat source comprises a constant temperature room 1, an air inlet duct 2, a first power device 3, a heat exchange system and an air outlet duct 4. An air inlet 11 and an air outlet 12 are provided on the constant temperature room 1, and a plurality of temperature sensors 19 are provided in the constant temperature room. In this embodiment, there are three air inlets 11, which are respectively defined as a first air inlet R1, a second air inlet R2 and a third air inlet R3. The air inlet 11 is provided on one of the walls of the constant temperature room 1, and the three air inlets are arranged at equal intervals. There are three air outlets 12, which are respectively defined as a first air outlet C1, a second air outlet C2 and a third air outlet C3. The air outlet 12 is provided on another wall opposite to the air inlet 11, and the three air outlets 12 are arranged at equal intervals. It can be understood that the number of the air inlets 11 and the air outlets 12 can be increased or decreased according to actual needs. In this embodiment, there are five temperature sensors, namely the first temperature sensor W1, the second temperature sensor W2, the third temperature sensor W3, the fourth temperature sensor W4 and the fifth temperature sensor W5, which are evenly arranged in the constant temperature room 1 and can also be arranged at different positions of the constant temperature room as needed, and the temperature sensors are electronic thermometers.

[0026] The inlet of the air intake pipe 2 is connected to the three air intake ports 11. The first power device 3 is used to transport the air in the constant temperature chamber 1 from the air intake port 11 to the heat exchange system through the air intake pipe 2, so as to realize the circulation of air between the pipe and the constant temperature chamber. The first power device 3 in this embodiment is a turbo pump, which is used to transport the air in the constant temperature chamber 1 into the heat exchange system.

[0027] The heat exchange system is arranged outside the constant temperature chamber 1, and the heat exchange system comprises a heating structure for providing a heat source, a cooling structure for providing a cold source, and a non-heat exchange throttling structure which are connected in parallel with each other.

[0028] The heating structure includes a heating pipe, a first control valve 5 arranged on the heating pipe, a heat source heat exchanger and a heat source medium. The air in the heating pipe exchanges heat with the heat energy provided by the heat source medium in the heat source heat exchanger; the cooling structure includes a cooling pipe, a second control valve 6 arranged on the cooling pipe, a cold source heat exchanger and a cold source medium. The air in the cooling pipe exchanges heat with the cold energy provided by the cold source medium in the cold source heat exchanger; the non-heat exchange throttling structure includes a non-heat exchange pipe and a third control valve 7 arranged on the non-heat exchange pipe. The inlets of the heating pipe, the non-heat exchange pipe and the cooling pipe are respectively connected to the outlet of the air inlet pipe 2, and the outlets of the heating pipe, the cooling pipe and the non-heat exchange pipe are respectively connected to the inlet of the air outlet pipe 4, and the outlet of the air outlet pipe 4 is connected to the air outlet 12 on the constant temperature chamber 1. In addition, an intake air temperature sensor 8 for measuring the intake air temperature is provided in front of the inlet of the heating pipe, the non-heat exchange pipe and the cooling pipe, and an outlet air temperature sensor 9 for measuring the outlet air temperature is provided at the outlet of the heating pipe, the non-heat exchange pipe and the cooling pipe. The intake air temperature sensor 8 and the outlet air temperature sensor 9 in this embodiment are both electronic thermometers. By setting a non-heat exchange throttling structure to adjust the airflow size in the pipeline, that is, increasing the airflow entering the non-heat exchange pipe, the airflow entering the heating pipe or the cooling pipe will be reduced, so that the energy exchange power can be regulated, thereby realizing the precise regulation of the airflow temperature at the air outlet. The heat exchange power is controlled by changing the airflow size to achieve a more agile and accurate temperature control target.

[0029] The cooling structure also includes a second power device 10, a second storage component 13 for accommodating a cold source medium, a cold source input pipe and a cold source output pipe. The second storage component 13, the cold source input pipe, the cold source heat exchanger 18 and the cold source output pipe form a cold source circuit. The cold source medium is a solid-liquid mixture. The second power device 10 is used to pass the liquid in the solid-liquid mixture that can provide cold energy through the cold source input pipe and the cold source heat exchanger to exchange heat with the air. In this embodiment, the second storage element 13 is a box structure, the second power device 10 is a turbine pump, and the cold source medium is an ice-water mixture. According to actual needs, a solid-liquid mixture of other materials with suitable melting points can be selected (for example, if an ice-water mixture is used as a cold source medium, the temperature of the cold source is 0°C, and the required working temperature cannot be lower than 0°C. If the required constant temperature chamber working temperature is lower than 0°C, such as -5°C, it is necessary to select a material with a melting point lower than -5°C as a cold source medium, such as the melting point of mercury is -38.87°C). At this time, the liquid temperature is the melting point of the working fluid material. The water in the ice-water mixture is driven by the second power device 10 to flow clockwise (in the direction shown in the figure), that is, the water is transported to the cold source input pipeline, enters from the bottom of the cold source heat exchanger 18, and flows back to the second storage element 13 from the cold source output pipeline after heat exchange with air in the cold source heat exchanger 18. The air after heat exchange and cooling is supplied to the constant temperature chamber 1 through the outlet pipe 4 and the outlet 12.

[0030] The heating structure also includes a first storage element 14 for accommodating a heat source medium, an electric heating rod 16 that contacts the heat source medium to generate a heat source, a heat source input pipeline, and a heat source output pipeline. The first storage element 14, the heat source input pipeline, the heat source heat exchanger 17, and the heat source output pipeline form a heat source loop, and the heat source medium is a liquid-gas mixture. The first storage element 14 is also provided with a voltage stabilizing device for stabilizing the pressure of the first storage element 14. The voltage stabilizing device can be a variable volume pressure stabilizing container such as a balloon or a gas cylinder. In this embodiment, it is a pressure stabilizing balloon 15, and the pressure stabilizing balloon 15 is connected to the first storage element 14. It also includes a controller and a voltage stabilizing sensor for monitoring the voltage stabilizing device, which is arranged near the voltage stabilizing device. The voltage stabilizing sensor is electrically connected to the controller, and the magnitude of the current passed into the electric heating rod can be controlled by the controller. The voltage stabilizing sensor in this embodiment is a video monitoring sensor, and the controller is an STM32 single-chip microcomputer. The first storage unit 14 of this embodiment is a box structure, and the heat source is a water vapor mixture. According to actual needs, other liquid-gas mixtures of materials with suitable boiling points can be selected (for example, if a water vapor mixture is used as the heat source medium, the temperature of the heat source is 100°C, and the required working temperature cannot be higher than 100°C at this time. If the required constant temperature chamber working temperature is higher than 100°C, such as 105°C, it is necessary to select a substance with a boiling point higher than 105°C as the heat source medium, such as: p-xylene, boiling point 138°C), and the electric heating rod 16 is energized to heat the liquid. When the liquid reaches the boiling point, due to the presence of the pressure-stabilizing balloon 15, the air pressure remains basically unchanged, and the temperature of the liquid and its vapor is the boiling point of the working medium. The steam enters the heat source input pipeline on the right side of the figure, enters the heat source heat exchanger from the upper right end of the heat source heat exchanger 17, and condenses into liquid after heat exchange with air and cooling. Under the action of gravity, the liquid flows along the inner wall of the heat exchange plate in the heat source heat exchanger 17 into the heat source output pipeline on the left, and then returns to the first storage unit 14. When the electric heating rod 16 heats too much, the steam pressure in the bottle increases slightly, and the excess steam enters the pressure-stabilizing balloon, the volume of the pressure-stabilizing balloon increases, and the video monitoring sensor set near the pressure-stabilizing balloon is used to feed back to the controller. The controller reduces the input current, thereby reducing the heat input of the electric heating rod 16, and further reducing the generation of steam.

[0031] In this embodiment, the first control valve 5 , the second control valve 6 and the third control valve 7 are all throttle valves.

[0032] When the temperature control system provided in this embodiment is working, if the intake air temperature is higher than the set temperature of the thermostatic chamber, the first control valve 5 on the heating mechanism is closed, the electric heating rod 16 is powered off, and the rotation speed of the first power device 3 and the second power device 10 and the opening of the second control valve 6 and the third control valve 7 are adjusted, so that the temperature value measured by the outlet temperature sensor 7 is within the error range allowed by the set temperature (for example, the thermostatic chamber has a desired constant temperature value, which is set according to different actual working requirements, such as the need to measure the resistivity of the conductor at 25°C, and the temperature requirement of the thermostatic chamber is 25°C at this time, and a certain temperature fluctuation is usually allowed, such as a temperature fluctuation of 0.1°C, and the set temperature value is 24.9°C-25.1°C at this time). When the opening of the second control valve 6 increases and the opening of the third control valve 7 decreases, the air flow through the cold source heat exchanger increases, the cold source heat exchange increases, and the temperature reduction speed of the thermostatic chamber is accelerated; the increase in the rotation speed of the first power device 3 and the second power device 10 also achieves the purpose of increasing the cold source heat exchange. Among them, the second control valve 6 and the third control valve 7 are the main adjustment objects, and the first power device 3 and the second power device 10 are auxiliary adjustment objects.

[0033] If the intake air temperature is lower than the set temperature of the constant temperature room, the second control valve 6 is closed to close the cooling structure, the electric heating rod 16 is energized, and the current of the electric heating rod 16, the rotation speed of the first power device 3, and the opening of the first control valve 5 and the third control valve 7 are adjusted so that the temperature value measured by the outlet temperature sensor 7 is within the error range allowed by the set temperature. When the opening of the third control valve 7 increases and the opening of the first control valve 5 decreases, the airflow through the heat source heat exchanger 17 increases, and the heat exchange of the heat source increases, thereby accelerating the temperature increase speed of the constant temperature room. Among them, the first control valve 5 and the third control valve 7 are the main adjustment objects, and the current of the first power device 3 and the electric heating rod 16 are auxiliary adjustment objects.

[0034] In one embodiment, each temperature sensor 19 is connected to the input end of the controller to transmit the temperature signal to the controller, and a control valve is provided at each air inlet 11 and each air outlet 12, respectively. Each control valve is connected to the output end of the controller, so as to adjust the opening of the corresponding air inlet 11 or air outlet 12 according to the temperature signal of each temperature sensor 19 to achieve precise adjustment of the temperature of the constant temperature room, and the control valves are all throttle valves. For example, if the temperature measured by the first temperature sensor W1 exceeds the preset range, the temperature signal is transmitted to the controller, and the controller controls the control valve at the first air inlet R1 and the control valve at the first air outlet C1 near the first temperature sensor W1, and increases the opening of the two control valves, so that the high-temperature air near the first temperature sensor W1 can be sent to the heat exchange system through the air inlet pipe 2, and the air after heat exchange and cooling by the cooling mechanism can also be sent to the vicinity of the first temperature sensor W1 when the opening of the control valve at the first air outlet C1 is larger, thereby reducing the temperature there; if the temperature measured by the first temperature sensor W1 is lower than the preset temperature, the temperature signal is transmitted to the controller, and the controller reduces the opening of the control valve at the first air outlet C1 and increases the opening of the control valve at the first air outlet C1, so that the air heated by the heating structure enters the constant temperature room from the first air outlet C1, thereby increasing the temperature near the first temperature sensor W1. In the above, by using the temperature signals fed back by the temperature sensors set at different positions, the controller controls the opening of the control valve at the corresponding air inlet or outlet, and the temperature of the constant temperature room can be accurately adjusted. In this embodiment, multi-point temperature sensor monitoring and gas flow rate control are combined to achieve precise adjustment of the constant temperature chamber with high sensitivity.

[0035] In one embodiment, the first control valve 5, the second control valve 6, the third control valve 7, the first power device 3, and the second power device 10 are respectively connected to the output end of the controller. The temperature signal measured by each temperature sensor and the air pressure signal measured by the voltage stabilizing sensor enter the input end of the STM32 single-chip microcomputer after digital sampling. The single-chip microcomputer processes the received signal and drives the corresponding control valve and turbo pump to complete the regulation. That is, during the heat exchange process, the controller controls the first power device 3 to open so that it sends air into the heat exchange system. When the temperature in the constant temperature room 1 is lower than the preset range, the controller controls the opening of the third control valve 7 and the first control valve 5, and controls the power supply to the electric heating rod, the heating structure works, the air is heated, and the heated air enters the constant temperature room to increase the indoor temperature; when the temperature in the constant temperature room 1 is higher than the preset range, the controller controls the opening of the third control valve 7, the second control valve 6, and the second power device 10, the cooling structure works, the air is cooled, and the cooled air enters the constant temperature room to reduce the indoor temperature.

[0036] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A constant temperature room temperature control system based on a cold source and a heat source, characterized in that: It comprises a constant temperature chamber (1), an air intake pipe (2), a first power device (3), a heat exchange system and an air outlet pipe (4); The constant temperature chamber (1) is provided with an air inlet (11) and an air outlet (12), and a plurality of temperature sensors (19) are arranged in the constant temperature chamber; The inlet of the air intake pipe (2) is in communication with the air intake port (11), and the first power device (3) is used to transport the air in the constant temperature room (1) from the air intake port (11) to the heat exchange system via the air intake pipe (2); The heat exchange system comprises a heating structure for providing a heat source, a cooling structure for providing a cold source and a heat-free throttling structure which are connected in parallel to each other. The heating structure comprises a heating pipeline, a first control valve (5) arranged on the heating pipeline, a heat source heat exchanger (17) and a heat source medium. The air in the heating pipeline exchanges heat with the heat energy provided by the heat source medium in the heat source heat exchanger (17). The heat source medium is a liquid-gas mixture. The cooling structure comprises a cooling pipeline, a second control valve (6) arranged on the cooling pipeline, a cold source heat exchanger (18) and a cold source medium. The air in the cooling pipeline exchanges heat with the cold liquid provided by the cold source medium in the cold source heat exchanger. The cold source medium is a solid-liquid mixture. The heat-free throttling structure The structure comprises a non-heat exchange pipe and a third control valve (7) arranged on the non-heat exchange pipe, the inlets of the heating pipe, the non-heat exchange pipe and the cooling pipe are respectively communicated with the outlet of the air inlet pipe (2), the outlets of the heating pipe, the cooling pipe and the non-heat exchange pipe are respectively communicated with the inlet of the air outlet pipe (4), and the outlet of the air outlet pipe (4) is communicated with the air outlet (12) on the constant temperature chamber (1); the heating structure also comprises a first storage element (14) for accommodating the heat source medium, an electric heating rod (16) in contact with the heat source medium to generate a heat source, a heat source input pipe and a heat source output pipe, the first storage element (14), the heat source input pipe, the heat source heat exchanger and The heat source output pipeline forms a heat source loop; the heat exchange system is arranged outside the constant temperature room, and the heat exchange system includes a heating structure for providing a heat source, a cooling structure for providing a cold source, and a heat-free throttling structure connected in parallel; the heating structure includes a heating pipeline, a first control valve arranged on the heating pipeline, a heat source heat exchanger, and a heat source medium. The air in the heating pipeline exchanges heat with the heat energy provided by the heat source medium in the heat source heat exchanger; the cooling structure includes a cooling pipeline, a second control valve arranged on the cooling pipeline, a cold source heat exchanger, and a cold source medium. The air in the cooling pipeline exchanges heat with the cold energy provided by the cold source medium in the cold source heat exchanger; the heat-free throttling structure includes a heat-free pipeline and a third control valve arranged on the heat-free pipeline, the heating pipeline, the heat-free pipeline The inlets of the heating pipe, the cooling pipe and the heat-free pipe are respectively communicated with the outlet of the air inlet pipe, and the outlets of the heating pipe, the cooling pipe and the non-heat-exchange pipe are respectively communicated with the inlet of the air outlet pipe, and the outlet of the air outlet pipe is communicated with the air outlet on the constant temperature chamber; and an inlet air temperature sensor for measuring the inlet air temperature is arranged in front of the inlet of the heating pipe, the heat-free pipe and the cooling pipe, and an outlet air temperature sensor for measuring the outlet air temperature is arranged at the outlet of the heating pipe, the heat-free pipe and the cooling pipe. The airflow size in the pipeline is adjusted by setting a heat-free throttling structure, that is, increasing the airflow entering the heat-free pipe, and the airflow entering the heating pipe or the cooling pipe will be reduced, thereby realizing the regulation of the energy exchange power, thereby realizing the precise regulation of the airflow temperature at the air outlet;The heat exchange power can be controlled by changing the airflow size to achieve a more agile and accurate temperature control target; The cooling structure further includes a second power device, a second storage element for accommodating a cold source medium, a cold source input pipeline and a cold source output pipeline, wherein the second storage element, the cold source input pipeline, the cold source heat exchanger and the cold source output pipeline form a cold source loop, wherein the cold source medium is a solid-liquid mixture, and the second power device is used to pass the liquid in the solid-liquid mixture that can provide cold energy through the cold source input pipeline and the cold source heat exchanger to exchange heat with the air; When the electric heating rod heats too much, the steam pressure in the bottle increases, and the excess steam enters the pressure-stabilizing balloon, which increases in volume. The video monitoring sensor set near the pressure-stabilizing balloon feeds back to the controller, and the controller reduces the input current, thereby reducing the heat input of the electric heating rod, and further reducing the generation of steam. If the air intake temperature is lower than the set temperature of the constant temperature room, the second control valve is closed to close the cooling structure, the electric heating rod is energized, and the electric current of the electric heating rod, the rotation speed of the first power unit, and the opening of the first control valve and the third control valve are adjusted so that the temperature value measured by the outlet temperature sensor 7 is within the error range allowed by the set temperature; when the opening of the third control valve increases and the opening of the first control valve decreases, the airflow through the heat source heat exchanger increases, and the heat exchange of the heat source increases, thereby accelerating the temperature increase speed of the constant temperature room; among them, the first control valve and the third control valve are the main adjustment objects, and the first power unit and the electric current of the electric heating rod are auxiliary adjustment objects.

2. The constant temperature room temperature control system based on cold source and heat source according to claim 1, characterized in that: The number of the air inlet (11) is at least one, and the number of the air outlet (12) is at least one.

3. The constant temperature room temperature control system based on cold source and heat source according to claim 2, characterized in that: Each air inlet (11) and each air outlet is correspondingly provided with a control valve.

4. The constant temperature room temperature control system based on cold source and heat source according to claim 1, characterized in that: The plurality of temperature sensors are evenly distributed in the constant temperature room.

5. The constant temperature room temperature control system based on cold source and heat source according to claim 1, characterized in that: An intake air temperature sensor (8) for measuring the intake air temperature is arranged in front of the inlets of the heating pipe, the non-heat exchange pipe and the cooling pipe, and an outlet air temperature sensor (9) for measuring the outlet air temperature is arranged at the outlets of the heating pipe, the non-heat exchange pipe and the cooling pipe.

6. The constant temperature room temperature control system based on cold source and heat source according to claim 1, characterized in that: The heating structure is also provided with a voltage stabilizing device for stabilizing the voltage of the first storage element (14).

7. A constant temperature room temperature control system based on a cold source and a heat source according to claim 6, characterized in that: It also includes a controller and a voltage stabilization sensor for monitoring the voltage stabilization device, and the voltage stabilization sensor is electrically connected to the controller.

8. The constant temperature room temperature control system based on cold source and heat source according to claim 1, characterized in that: The cooling structure further comprises a second storage element (13) for accommodating the cold source medium, a cold source input pipeline and a cold source output pipeline, wherein the second storage element (13), the cold source input pipeline, the cold source heat exchanger and the cold source output pipeline form a cold source loop.

9. A constant temperature room temperature control system based on a cold source and a heat source according to any one of claims 1 to 8, characterized in that: The cooling structure further comprises a second power device (10), the cold source medium is a solid-liquid mixture, and the second power device (10) is used to allow the liquid in the solid-liquid mixture to flow through the cold source input pipeline and pass through the cold source heat exchanger to exchange heat with air.

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