Liquid temperature control device

Abstract

The utility model discloses a liquid temperature control device. The temperature control device comprises a temperature conveyor and a temperature control system; the temperature conveyor comprises a heating component, and the heating component is arranged in a hollow mode to form a refrigeration channel. A heat supply main body of the heating component is located in liquid to be subjected to temperature control, and the heating end of the heating component and the input end and the output end of the refrigeration channel are connected with the temperature control system. According to the temperature conveyor, the heating component in the temperature conveyor is arranged to be the hollow component, the hollow part forms the refrigerating channel, the heating and refrigerating integrated design is achieved, the situation that a heating system and a refrigerating system need to be connected with a sleeve pipeline system is avoided, system pipelines are simplified, and the complexity of system design and installation is reduced; through the structure, the problems of complicated installation, low efficiency and the like caused by separation of a heating system and a refrigerating system of a traditional liquid cooling device are solved.

Description

Technical Field

[0001] This utility model relates to the field of flow battery technology, specifically to a liquid temperature control device, and more particularly to an electrolyte temperature control device. Background Technology

[0002] In the energy storage industry, flow batteries are favored by the market due to their intrinsic safety characteristics caused by their aqueous electrolyte solution. Furthermore, their output power and energy storage capacity are independent of each other, resulting in diminishing marginal costs as the battery's lifespan increases. Their design and installation are flexible, making them suitable for large-scale, high-capacity, and long-duration energy storage. However, the aqueous nature of the electrolyte limits their operating temperature to 0–45°C, making them unsuitable for regions with extreme weather conditions. To address this, auxiliary measures such as heating and cooling of the electrolyte are typically implemented to ensure stable operation within the specified temperature range.

[0003] Currently, most cooling methods in the industry involve connecting a chiller to the outside of the liquid storage tank via pipelines. Heating is typically achieved using heating rods inside the liquid storage tank, or by adding heating belts and insulation cotton to the outside of the tank. The drawback of this method is that it requires two separate systems for heating and cooling, resulting in numerous and complex piping systems, causing installation inconvenience and affecting installation efficiency.

[0004] new content

[0005] This application provides a liquid temperature control device to solve the problems of complex installation and low efficiency caused by the separation of heating and cooling systems in the prior art. Specifically, the solution is: a liquid temperature control device, comprising: a temperature transmitter and a temperature control system;

[0006] The temperature transmitter includes a heating element, which is hollow to form a cooling channel;

[0007] The heating element's main heating component is located inside the liquid to be temperature controlled, and the heating end of the heating element, as well as the input and output ends of the cooling channel, are respectively connected to the temperature control system.

[0008] Preferably, the temperature control system includes a heater and a cooler;

[0009] The heater is connected to the heating end of the heating component;

[0010] The cooler is connected to the input and output ends of the cooling channel, respectively.

[0011] Preferably, the refrigerator includes a refrigerant and a refrigerant container for storing the refrigerant;

[0012] The input and output ends of the refrigeration channel are respectively connected to the refrigerant container, and electromagnetic switching valves are respectively installed between the input and output ends of the refrigeration channel and the refrigerant container.

[0013] Preferably, the heater is installed at the opening of the storage tank of the liquid to be heated, and the heater is provided with connection holes for the input end and the output end of the cooling channel;

[0014] The input and output ends of the cooling channel pass through the connecting hole, respectively.

[0015] Preferably, an insulation layer is provided between the input end and the output end of the cooling channel and the mounting hole.

[0016] Preferably, a sealing gasket is provided at the connection between the heater and the storage tank.

[0017] Preferably, the temperature control device is further equipped with a temperature sensor and a controller;

[0018] The temperature acquisition device is located inside the liquid to be temperature controlled;

[0019] The controller is connected to the temperature sensor, the heater, and the electromagnetic switch valve.

[0020] Preferably, the heating element extends into the heating body of the liquid to be temperature controlled, and protrudes outward to form several uniform heat dissipation sections.

[0021] Compared with the prior art, the beneficial effects of this application are as follows:

[0022] This application achieves an integrated heating and cooling design by setting the heating component in the temperature transmitter as a hollow component, in which the hollow part forms a cooling channel. Compared with the traditional liquid storage tank where the heating and cooling systems need to be connected to separate pipelines, this simplifies the system piping and reduces the complexity of system installation; it also solves the problems of complex installation and low efficiency caused by the separation of traditional cooling and heating systems.

[0023] This application uses a heating element to heat the liquid, ensuring that the liquid in the storage tank remains within the operating temperature for an extended period, preventing the liquid from becoming too cold and affecting its use; and uses a cooling channel to cool the liquid, ensuring that the system remains within the normal operating temperature, preventing high temperatures from affecting battery life.

[0024] This application heats the liquid using a heating element to keep the liquid in the storage tank within the operating temperature for a long time, so as not to make the liquid too cold and affect its use; and cools the liquid using a cooling channel to ensure that the system is within the normal operating temperature, so as not to make the battery life affected by high temperature. Attached Figure Description

[0025] Figure 1This is a schematic diagram of the structure of a liquid temperature control device according to an embodiment of this application;

[0026] Figure 2 This is a schematic diagram showing the connection between a liquid temperature control device and a storage tank in an embodiment of this application;

[0027] In the diagram: 1. Heating and cooling pipes; 2. Fixing bracket; 3. Liquid inlet valve; 4. Liquid outlet valve; 5. Heating plate; 6. Heating wire; 7. Mounting plate; 8. Mounting hole; 9. Temperature sensor; 10. Liquid storage tank. Detailed Implementation

[0028] A liquid temperature control device, the temperature control device comprising: a temperature transmitter and a temperature control system;

[0029] The temperature transmitter includes a heating element, which is hollow to form a cooling channel;

[0030] The heating element's main heating component is located inside the liquid to be temperature controlled, and the heating end of the heating element, as well as the input and output ends of the cooling channel, are respectively connected to the temperature control system.

[0031] It should be noted that:

[0032] In this application, the heating element is in the form of any one of the following structures, including but not limited to U-shape, V-shape, or similar U-shape and V-shape; the number of heating elements is at least one, the specific number matching the unit cross-section of the liquid to be temperature controlled, the length of the heating element's heating body matching the depth of the liquid to be temperature controlled, so that after it extends into the liquid to be temperature controlled, it maximizes the heating of the liquid to be temperature controlled; the heating element is an acid-resistant element.

[0033] The cooling channel is arranged along the extension direction of the heating component, and its two ends pass through the two ends of the heating component and are connected to the outside. The heating end of the heating component and the input and output ends of the cooling channel are respectively connected to the temperature control system located outside the liquid to be heated. In this way, the heating body of the heating component and the cooling channel are located inside the liquid to be temperature controlled. While realizing the integration of heating and cooling, the structure of the temperature control device connected to the liquid to be temperature controlled is simplified, and the complexity of system installation is reduced.

[0034] Furthermore, the temperature control system includes a heater and a cooler;

[0035] The heater is connected to the heating end of the heating component;

[0036] The cooler is connected to the input and output ends of the cooling channel, respectively.

[0037] It should be noted that:

[0038] In this application, the heater and the cooler are located outside the liquid to be temperature controlled, and the heater is an electric heater.

[0039] Furthermore, the refrigerator includes a refrigerant and a refrigerant container for storing the refrigerant;

[0040] The input and output ends of the refrigeration channel are respectively connected to the refrigerant container, and electromagnetic switching valves are respectively installed between the input and output ends of the refrigeration channel and the refrigerant container.

[0041] It should be noted that:

[0042] In this application, the input and output ends of the refrigeration channel are respectively connected to the refrigerant container through pipelines, and the refrigerant stored in the refrigerant container is controlled by an electromagnetic switch valve to control whether the refrigerant enters the refrigeration channel for cooling.

[0043] Furthermore, the heater is installed at the opening of the storage tank of the liquid to be heated, and the heater is provided with connection holes for the input and output ends of the cooling channel;

[0044] The input and output ends of the cooling channel pass through the connecting hole, respectively.

[0045] It should be noted that:

[0046] In this application, holes are specially provided on the heater for installing the input and output ends of the refrigeration channel. These holes are reserved to allow the refrigeration channel to be smoothly installed on the heater and to be connected to the liquid storage tank through pipes.

[0047] Furthermore, an insulation layer is provided between the input end and the output end of the cooling channel and the mounting hole, respectively.

[0048] It should be noted that:

[0049] In this application, the insulation layer includes, but is not limited to, corrosion-resistant and heat-insulating insulation rings made of materials such as PP, PE, polytetrafluoroethylene, and UPVC.

[0050] Its insulation ring is placed outside the pipes connecting the inlet and outlet ends of the refrigeration channel to the liquid storage tank.

[0051] Furthermore, a sealing gasket is provided at the connection between the heater and the storage tank.

[0052] Furthermore, the temperature control device is also equipped with a temperature sensor and a controller;

[0053] The temperature acquisition device is located inside the liquid to be temperature controlled;

[0054] The controller is connected to the temperature sensor, the heater, and the electromagnetic switch valve.

[0055] Furthermore, the heating element extends into the heating body of the liquid to be temperature controlled, and protrudes outward to form several uniform heat dissipation sections.

[0056] It should be noted that:

[0057] In this application, the heating element protrudes outward to form several uniform heat dissipation portions, the shapes of which include, but are not limited to, semi-circular, fan-shaped, square, triangular, or any other serrated protrusions, in order to increase the heat conduction area of ​​the heating element and improve the heating / cooling efficiency.

[0058] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0059] This embodiment takes the cooling and heating of the electrolyte in a flow battery as an example. In this embodiment, the heating component is a U-shaped tube with its opening facing upwards. Based on the cross-section of the electrolyte storage tank, two heating components are provided. Both heating components are U-shaped tubes with their openings facing upwards, and the bottoms of the two U-shaped tubes intersect to form a cross-shaped structure. The length of the heating component matches the height of the storage tube, so that the heating main body is located inside the storage tank. The heating end of the heating component, as well as the input and output ends of the cooling channel, are located inside the storage tank. Specifically:

[0060] As attached Figure 1-2 As shown, this embodiment provides a temperature control device for a flow battery. The device includes the following main components: a temperature transmitter consisting of a heating element and an integrated heating / cooling pipe 1 formed by an internally hollow structure;

[0061] The temperature control system includes a circular heater (i.e., heating plate 5 in this embodiment), refrigerant, inlet valve 3, and outlet valve 4. The heating and cooling pipe 1 is a U-shaped hollow electric heating pipe with a cooling channel inside, and both ends are connected to the refrigerant container through pipes. The heating body of the heating and cooling pipe 1 extends into the electrolyte storage tank, and its surface is evenly distributed with semi-circular heat dissipation protrusions to increase the heat conduction area.

[0062] The refrigerant container is connected to the input and output ends of the refrigeration channel of the heating and refrigeration pipe 1 through the inlet valve 3 and the outlet valve 4, respectively. The valves are electromagnetic switch valves and are controlled by the controller to open and close.

[0063] Heating wires 6 are embedded in the heating plate 5 and the heating-cooling pipe 1 respectively. The two are connected by heating wires 6. The controller of the heating plate 5 is wirelessly or wiredly connected to the controller. The center of the heating plate 5 is provided with a through hole extending in the direction of extension so that the pipes connected to the input and output ends of the cooling channel of the connected heating-cooling pipe 1 can pass through.

[0064] The auxiliary components for installing this device include: a mounting bracket 2 and a mounting plate 7, wherein the mounting plate 7 is provided with mounting holes 8; the device is installed on the storage tank 10 for storing electrolyte via the mounting plate, specifically: the mounting plate 7 is placed on the outside of the opening of the storage tank 10, the heating plate 5 is placed on top of the mounting plate 7, the heating tube body of the heating and cooling pipe 1 is placed inside the storage tank 13, and both ends pass through the heating plate 5 and are located on the outside of the heating plate 5; then the fixing bolts / screws are passed through the shell of the heating plate 5 and the mounting holes 8 in sequence to fix the heating plate 5 to the mounting plate 7; one end of the pipe connecting the input and output ends of the cooling channel is connected to the refrigerant container, and the other end is connected to the input and output ends of the cooling channel; the heating plate 5 and the opening of the storage tank 10 are sealed by a sealing gasket.

[0065] The fixing bracket 2 is installed on the outside of the heating pipe body of the heating and cooling pipe 1. The number of brackets is determined according to the overall length of the heating and cooling pipe 1, so as to fix the two heating and cooling pipes 1.

[0066] The temperature acquisition device 9 used to collect electrolyte temperature data is a temperature sensor, which is wirelessly connected to the controller.

[0067] Temperature sensor 9 is immersed in electrolyte to monitor the electrolyte temperature in real time and feed it back to the controller. The controller automatically adjusts the power of heating plate 5 and the opening and closing state of electromagnetic switch valve according to the set value to achieve precise temperature control.

[0068] The heating mode of this device is as follows: when the electrolyte temperature is lower than the set value, the controller starts the heating plate 5, and the heat is quickly conducted to the electrolyte through the pipe wall of the heating cooling pipe 1 and the heat dissipation protrusion.

[0069] The cooling mode of this device is as follows: when the temperature is too high, the controller opens the inlet valve 3 and the outlet valve 4, and the refrigerant flows from the refrigerant container into the cooling channel. After absorbing the heat of the electrolyte, it is circulated and discharged to achieve rapid cooling.

[0070] In this embodiment, when the temperature sensor detects that the electrolyte temperature is below 0°C, the controller controls the heating plate 5 to start heating. At this time, the wall of the cooling pipe 1 of the heating plate 5 is heated. When the temperature sensor detects that the electrolyte temperature in the storage tank reaches 10°C, the controller controls the heating plate 5 to stop heating. When the temperature detector detects that the temperature is above 45°C, the controller controls the opening of the inlet valve 3 and the outlet valve 4, and the refrigerant flows into the heating and cooling pipe 1 through the cooling channel to cool the electrolyte in the storage tank. Until the temperature sensor detects that the temperature is below 30°C, the controller controls the closing of the inlet valve 3 and the outlet valve 4 to stop the delivery of refrigerant.

[0071] It adopts an integrated design of U-shaped heating and cooling pipe 1 and heat dissipation protrusion, which has both heating and cooling functions, compact structure and high thermal efficiency.

[0072] This embodiment effectively reduces energy loss and leakage risk through the design of insulation layer and sealing gasket.

[0073] The controller is linked with the temperature acquisition unit, heating plate, inlet valve 3 and outlet valve 4 to achieve fully automatic temperature control, which is suitable for high-precision temperature control scenarios such as flow batteries.

[0074] This embodiment solves the problems of complex installation and low efficiency caused by the separation of heating and cooling systems in traditional liquid cooling devices through the above structure.

Claims

1. A liquid temperature control device, characterized in that, The temperature control device includes: a temperature transmitter and a temperature control system; The temperature transmitter includes a heating element, which is hollow to form a cooling channel; The heating element's main heating component is located inside the liquid to be temperature controlled, and the heating end of the heating element, as well as the input and output ends of the cooling channel, are respectively connected to the temperature control system.

2. The liquid temperature control device according to claim 1, characterized in that, The temperature control system includes a heater and a cooler; The heater is connected to the heating end of the heating component; The cooler is connected to the input and output ends of the cooling channel, respectively.

3. The liquid temperature control device according to claim 2, characterized in that, The refrigerator includes a refrigerant and a refrigerant container for storing the refrigerant; The input and output ends of the refrigeration channel are respectively connected to the refrigerant container, and electromagnetic switching valves are respectively installed between the input and output ends of the refrigeration channel and the refrigerant container.

4. A liquid temperature control device according to claim 3, characterized in that, The heater is installed at the opening of the storage tank of the liquid to be heated, and the heater is provided with connection holes for the input end and the output end of the cooling channel; The input and output ends of the cooling channel pass through the connecting hole, respectively.

5. A liquid temperature control device according to claim 4, characterized in that, Insulation layers are provided between the input and output ends of the cooling channel and the mounting holes, respectively.

6. A liquid temperature control device according to claim 4, characterized in that, A sealing gasket is provided at the connection between the heater and the storage tank.

7. A liquid temperature control device according to claim 3, characterized in that, The temperature control device is also equipped with a temperature sensor and a controller; The temperature acquisition device is located inside the liquid to be temperature controlled; The controller is connected to the temperature sensor, the heater, and the electromagnetic switch valve.

8. A liquid temperature control device according to claim 3, characterized in that, The heating element extends into the liquid to be regulated, and its heating body protrudes outward to form several uniform heat dissipation sections.

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