Vehicle-mounted mobile heating system, vehicle, and heating method

Abstract

The present invention relates to the field of energy storage, and specifically provides a vehicle-mounted mobile heating system, a vehicle, and a heating method. The vehicle-mounted mobile heating system includes a heat storage tank storing a thermochemical heat storage medium, a heating device, and a heat exchange device. The heating device is used to maintain the temperature of the heat storage tank above the reaction temperature of the thermochemical heat storage medium, and the heat exchange device exchanges heat between the thermochemical heat storage medium and a heat storage fluid. The vehicle-mounted mobile heating system also includes a thermochemical heat storage medium outlet and a heat storage fluid outlet. The thermochemical heat storage medium outlet is used to output the thermochemical heat storage medium after heat exchange with the heat storage fluid, and the heat storage fluid outlet is used to output the heat storage fluid after heat exchange with the thermochemical heat storage medium. Through its simple system structure, the vehicle-mounted mobile heating system solves the problems of existing mobile heating systems, such as low heat source temperature, the inability to move high-temperature heat sources and supply them to users, and the limited types of heat storage media that can be supplied.

Description

Technical Field

[0001] The present invention relates to the field of energy storage, and in particular to a vehicle-mounted mobile heating system. Background Art

[0002] With the development of industry and society, energy consumption remains high, which has led to problems such as energy waste. Storing and transporting excess heat has always been a research hotspot in the field of energy storage.

[0003] Traditional heat transport relies primarily on pipelines, where a heat storage medium flows through the pipes to move heat. However, when transporting heat storage media through pipelines, concerns arise regarding pipeline corrosion and excessive heat loss, which limit the transport of the heat storage medium. Furthermore, this traditional pipeline method requires significant investment in pipeline laying, whereas mobile heating systems can achieve heat transport without these issues.

[0004] Heat transport requires the selection of a suitable heat storage medium. Previously proposed mobile heating systems have mostly relied on sensible heat storage. For example, patent CN216620780 U discloses a mobile heating system that uses graphite for heat storage. However, this significantly reduces the amount of heat stored due to heat loss during transportation. Furthermore, the high-temperature heat source of these mobile heating systems cannot be moved or delivered to users, resulting in a limited selection of available heat storage media. Summary of the Invention

[0005] In response to the above problems, the present invention provides a vehicle-mounted mobile heating system based on thermochemical heat storage media. Through a simple system structure, it solves the problems of existing mobile heating systems, such as low heat source temperature, inability to move high-temperature heat sources and supply to users, and a relatively limited type of heat storage media that can be supplied.

[0006] The present invention provides a vehicle-mounted mobile heating system, comprising a heat storage tank storing a thermochemical heat storage medium, a heating device connected to the heat storage tank, and a heat exchange device. The heating device is used to maintain the temperature of the heat storage tank above the reaction temperature of the thermochemical heat storage medium. The heat exchange device is connected to the heat storage tank and exchanges heat between the thermochemical heat storage medium and a heat storage fluid. The vehicle-mounted mobile heating system also includes a thermochemical heat storage medium outlet and a heat storage fluid outlet. The thermochemical heat storage medium outlet is connected to the heat exchange device and is used to output the thermochemical heat storage medium after heat exchange with the heat storage fluid. The heat storage fluid outlet is connected to the heat exchange device and is used to output the heat storage fluid after heat exchange with the thermochemical heat storage medium.

[0007] Thermochemical heat storage media can store heat in a temperature range above 600°C, with a large heat storage capacity. The energy is mainly stored in the form of chemical energy, eliminating the problem of excessive heat loss during transportation due to excessively high heat source temperatures. The heating device can maintain the thermochemical heat storage medium in a temperature range above the reaction temperature before transporting it to the destination, preventing premature release of chemical energy. After transporting it to the destination, the heat exchange device can be selectively activated based on user needs. After the heat exchange device is activated, heat is exchanged between the thermochemical heat storage medium and the heat storage fluid. On the one hand, the thermochemical heat storage medium can be lowered to or near the reaction temperature range. The thermochemical heat storage medium is movable within the on-board mobile heating system. When a user needs to supply the thermochemical heat storage medium, the thermochemical heat storage medium outlet is used to output the thermochemical heat storage medium at the appropriate temperature to the user. On the other hand, the temperature of the heat storage fluid can be increased, and the heat storage fluid can be supplied to the user or vehicle when the user or vehicle itself needs the heat storage fluid. Through the above method, heat storage media of different types, different phases and different temperatures can be directly supplied to users to meet their different needs, improve the cooling rate of thermochemical heat storage media, and the heat in the cooling process will not be easily wasted.

[0008] In optional technical solutions of the present invention, the heat exchange device is a fan and the heat storage fluid is air; and / or the heat exchange device is a heat exchanger and the heat storage fluid is water. In some technical solutions, the fan can be used to cool the thermochemical heat storage medium, while the high-temperature air obtained by heat exchange is supplied or utilized. In other technical solutions, the heat exchanger can be used to exchange heat between the thermochemical heat storage medium and water, while the hot water or steam obtained by heat exchange is supplied to the user or utilized. In still other technical solutions, the fan and heat exchanger can be used in combination to more fully meet the different heat storage medium requirements of users.

[0009] In an optional technical solution of the present invention, the inner or outer wall of the heat storage tank is covered with an insulation layer. The insulation layer can effectively reduce energy loss during transportation and improve the energy utilization efficiency of the vehicle-mounted mobile heating system.

[0010] In an optional technical solution of the present invention, the heat storage tank has multiple chambers for storing different types of heat storage media. By dividing the storage space of the heat storage tank into multiple chambers, different types of heat storage media can be supplied to users according to their needs, further fully meeting their different heat storage medium needs.

[0011] In an optional technical solution of the present invention, the heat storage medium is a heat storage particle or a heat storage module, and the heat storage medium includes an inert heat storage medium and a thermochemical heat storage medium. The inert heat storage medium is a combination of one or more of quartz sand, silicon carbide, bauxite, and ceramics, and the thermochemical heat storage medium is a combination of one or more of metal oxides, carbonates, and hydrides.

[0012] A second aspect of the present invention provides a vehicle having an on-board mobile heating system.

[0013] A third aspect of the present invention provides a heat supply method, comprising the following steps:

[0014] a loading step of loading the thermochemical heat storage medium onto a vehicle;

[0015] a heating step of heating the thermochemical heat storage medium so that the temperature of the thermochemical heat storage medium is maintained above the reaction temperature;

[0016] a heat exchange step of exchanging heat between the thermochemical heat storage medium and the heat storage fluid;

[0017] The medium supply step uses a vehicle moving to the destination to supply one or more of the following: thermochemical heat storage medium that has not undergone heat exchange, thermochemical heat storage medium that has undergone heat exchange with a heat storage fluid, and heat storage fluid that has undergone heat exchange with a thermochemical heat storage medium.

[0018] In an optional technical solution of the present invention, the heat exchange step is to blow air into the thermochemical heat storage medium, and high-temperature air is supplied in the medium supply step; and / or, the heat exchange step is to use cold water to exchange heat with the thermochemical heat storage medium, and hot water or water vapor is supplied in the medium supply step.

[0019] In an optional technical solution of the present invention, the heat supply method further includes: a heat preservation step, providing a heat preservation layer covering the thermochemical heat storage medium.

[0020] In an optional technical solution of the present invention, in the loading step, different types of heat storage media are stored separately in multiple chambers; in the medium supplying step, one or more types of heat storage media are also supplied. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 Schematic diagram of the structure of the vehicle-mounted mobile heating system in an embodiment of the present invention.

[0022] Figure 2 Schematic diagram of the structure of the heat storage tank in an embodiment of the present invention.

[0023] Figure 3 Schematic diagram of the flow of a heat supply method based on thermochemical heat storage medium in an embodiment of the present invention.

[0024] Reference numerals:

[0025] 1-heat storage tank; 2-heating device; 3-heat exchanger; 4-transport channel; 5-fan; 6-control system; 7-insulation baffle; 8-container. DETAILED DESCRIPTION

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] Herein, "cold water" and "hot water" are relative to each other and do not limit the specific temperature range.

[0028] like Figure 1 As shown, an embodiment of the present invention provides a vehicle-mounted mobile heating system comprising: a heat storage tank 1, a heating device 2, a heat exchanger 3, a conveying channel 4, a fan 5, and a control system 6. The heat storage tank 3 stores at least a thermochemical heat storage medium. The heat exchanger 3 and the fan 5 are both heat exchange devices. The heat exchanger 3 exchanges heat with the thermochemical heat storage medium or other heat storage medium using cold water, while the fan 5 exchanges heat with the thermochemical heat storage medium or other heat storage medium by blowing air.

[0029] After passing through heat exchanger 3, cold water is converted into hot water or high-temperature water vapor. This hot water or high-temperature water vapor can be delivered to users via a hot water or high-temperature water vapor outlet on the vehicle's exterior. A high-temperature air collection unit is located on the other side of container 8, which holds the thermochemical heat storage medium, away from blower 5. This collected high-temperature air is delivered to users via a pipeline and a high-temperature air outlet on the vehicle's exterior. The hot water or high-temperature water vapor outlet and the high-temperature air outlet are the thermal storage fluid outlets in this embodiment. Delivery channel 4 is the outlet for supplying the thermochemical heat storage medium to the outside world, i.e., the thermochemical heat storage medium outlet.

[0030] Specifically, the heat storage tank 1 is used to store the thermochemical heat storage medium. As a heat source for mobile heating, the heat energy stored in the heat storage medium is in the form of sensible heat and chemical heat. At the same time, an insulating baffle 7 (such as Figure 2 As shown), it is convenient for storing thermochemical heat storage media of different types and temperatures.

[0031] The heating device 2 is on the outside of the heat storage tank and is composed of a temperature control system, insulation material, and a heater. The heat storage tank 1 is wrapped with insulation material to reduce heat loss caused by heat conduction and radiation, and to ensure that the temperature of the heat storage medium will not drop significantly during transportation. The thermal conductivity of the insulation material is <0.2W / m·K. It is best to use insulation materials such as slag wool and glass wool to reduce heat loss. The setting of the heating device 2 ensures that the temperature of the thermochemical heat storage medium will not drop significantly during transportation, avoids the premature release of chemical energy, and improves the efficiency of the transportation process. The heater can be an electric heater, a combustion heater, etc. to provide heat for the heat storage tank 1. In some embodiments, an external generator can also be connected to power the entire system to provide power guarantee for longer-distance heat transportation.

[0032] Control system 3 not only controls the opening of each valve in the entire system but also regulates the operating status of each device. Control system 3 is connected to the temperature control system of heating device 2. When it detects a drop in the temperature of the heat storage medium, the control system activates heating device 2. Upon reaching the heat supply destination, the control system controls heat exchanger 3, conveying channel 4, and fan 5 to exchange heat and unload the thermochemical heat storage medium. Conveying channel 4 delivers the thermochemical heat storage medium to the user.

[0033] The fan 5 can cool the thermochemical heat storage medium, making it convenient for users to use it, and help the thermochemical heat storage medium to be unloaded smoothly. It can also blow air to exchange heat with the thermochemical heat storage medium and deliver high-temperature air to users.

[0034] In the above manner, the vehicle-mounted mobile heating system uses a thermochemical heat storage medium as a heat storage medium. The thermochemical heat storage medium can be heated to a specified temperature by, for example, photothermal or electric heating, and enters the heat storage tank 1 for layered storage. During transportation, if the temperature of the thermochemical heat storage medium drops significantly, the heating device 2 starts working under the regulation of the control system 6 to ensure that the thermochemical heat storage medium maintains a high temperature. After arriving at the heating destination, the heat exchanger 3, the conveying channel 4 and the fan 5 are started to perform heat exchange and unloading of the thermochemical heat storage medium, thereby providing a stable heat source for the target users.

[0035] This embodiment of the present invention utilizes a vehicle-based method to deliver thermochemical heat storage media to users with varying heat needs. Compared to other heat transport methods, such as traditional pipeline transport, this reduces the movement of the heat storage media and saves on pipeline installation costs. Using a thermochemical heat storage medium as a circulating working fluid facilitates large-scale heat storage, providing users with continuous and stable high-temperature thermal energy without the limitations of distance. This embodiment enables efficient heat transport, reduces costs, and contributes to energy conservation and environmental protection.

[0036] Furthermore, the delivery channel 4 is provided with a high-temperature air outlet, which collects the high-temperature air blown out by the fan and exchanged with the thermochemical heat storage medium, and delivers the heat to the user in the form of air medium.

[0037] Furthermore, the heat released by the thermochemical heat storage medium can heat the air to 600 to 800°C. When the user needs high-temperature air, the thermochemical heat storage medium can quickly heat the air to the required temperature and deliver it to the user through the high-temperature air outlet of the delivery channel 4.

[0038] In a preferred embodiment of the present invention, the heat storage tank 1 of the thermochemical heat storage medium can be at least one of a vertical heat storage tank and a horizontal heat storage tank, wherein both heat storage tanks are provided with a high temperature inlet and a high temperature outlet, such as Figure 2 As shown, a multi-layer heat-insulating baffle 7 is provided inside the tank. Figure 2 The middle arrow indicates the direction of movement of the thermochemical heat storage medium. Dividing the medium into multiple layers or multiple independent chambers can facilitate the storage of thermochemical heat storage media of various temperatures and types, and supply them to users according to their different needs.

[0039] Furthermore, there are various types of heat storage media available, including but not limited to particles and solid modules. Particles are categorized as inert particles and thermochemical particles. Inert particles include but are not limited to quartz sand, silicon carbide, bauxite, and ceramics, while thermochemical particles include but are not limited to metal oxide particles, carbonate particles, and hydride particles. Solid modules include thermochemical modules and sensible heat modules. Thermochemical modules store heat in the form of chemical heat and sensible heat, while sensible heat modules store heat only in the form of sensible heat. These heat storage media can be used alone or in combination to achieve optimal heat storage results.

[0040] In a preferred embodiment of the present invention, when the temperature of the heat storage medium is higher than the user's target temperature, the fan 5 is started. The fan 5 can cool the heat storage medium before unloading; it can also lower the thermochemical heat storage medium in the heat storage medium to the reaction zone to provide heat; or it can generate air to transfer the heat of the heat storage medium to the air and deliver high-temperature air to the user.

[0041] Furthermore, the heat exchanger 3 may not only exchange heat with the thermochemical heat storage medium but also liquid water, heat storage liquid or other heat storage medium. The heat storage medium after heat exchange is delivered to the user through the delivery channel 4 to meet the user's different heat needs.

[0042] Furthermore, the conveying channel 4 may adopt devices such as a pump, a high-temperature resistant crawler, etc., in order to convey the high-temperature medium after heat exchange to the user.

[0043] In a preferred embodiment of the present invention, an external generator can be connected to power the entire system, providing power guarantee for longer-distance heat transportation.

[0044] Through the above methods, the vehicle-mounted mobile heating system provided in this embodiment can solve many problems caused by the application of thermochemical heat storage media to vehicle-mounted mobile heating systems through a simple system structure, such as the narrow applicable heat release temperature range, energy loss in the cooling process, and long time consumption. At the same time, it can meet different usage scenarios, making it possible to apply thermochemical heat storage media to vehicle-mounted mobile heating systems.

[0045] Continue to refer Figure 3 , Figure 3 The specific process of the heating method provided in this embodiment is shown. The heating method provided in this embodiment includes the following steps:

[0046] First, a loading step is performed to load the thermochemical heat storage medium onto the vehicle.

[0047] After the thermochemical heat storage medium is loaded onto the vehicle and before the thermochemical heat storage medium is delivered to the destination, the heating step is continuously performed to heat the thermochemical heat storage medium so that the temperature of the thermochemical heat storage medium is maintained above the reaction temperature.

[0048] Before or after the vehicle arrives at the destination, part of the thermochemical heat storage medium is taken out from the heat storage tank 1 and a heat exchange step is performed to exchange heat between the thermochemical heat storage medium and the heat storage fluid.

[0049] After the vehicle arrives at the destination, a medium supply step is performed, wherein one or more of the thermochemical heat storage medium that has not undergone heat exchange, the thermochemical heat storage medium that has undergone heat exchange with the heat storage fluid, and the heat storage fluid that has undergone heat exchange with the thermochemical heat storage medium are supplied using the vehicle that has moved to the destination.

[0050] Specifically, after transporting to the destination, the heat exchanger 3 and / or fan 5 can be selectively turned on according to different user needs. By exchanging heat between the thermochemical heat storage medium and water or air, on the one hand, the thermochemical heat storage medium can be reduced to or near the reaction temperature range. When the user needs to supply the thermochemical heat storage medium, the delivery channel 4 is used to output the thermochemical heat storage medium at the appropriate temperature to the user; on the other hand, the temperature of the water or air can be increased. When the user or the vehicle itself needs to supply hot water, hot steam or high-temperature air, the heat storage fluid is supplied to the user or vehicle. In this way, different types of heat storage media can be supplied to the user to meet the different needs of the user, the cooling rate of the thermochemical heat storage medium is improved, and the heat during the cooling process will not be easily wasted.

[0051] In some embodiments, the heat exchange step is to blow air into the thermochemical heat storage medium, and high-temperature air is supplied in the medium supply step; and / or, the heat exchange step is to use cold water to exchange heat with the thermochemical heat storage medium, and hot water or high-temperature steam is supplied in the medium supply step.

[0052] In some embodiments, the heat supply method further comprises: a heat preservation step, providing a heat preservation layer covering the thermochemical heat storage medium.

[0053] In some embodiments, in the loading step, different types of heat storage media are stored separately in a plurality of chambers; in the medium supplying step, one or more types of heat storage media are also supplied.

[0054] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A vehicle-mounted mobile heating system, characterized in that: include: A heat storage tank having a plurality of chambers for storing different types of heat storage media, wherein the plurality of chambers respectively store thermochemical heat storage media of different temperatures and types; a heating device connected to the heat storage tank and used to maintain the temperature of the heat storage tank above the reaction temperature of the thermochemical heat storage medium; a heat exchange device, in communication with the heat storage tank, for exchanging heat between the thermochemical heat storage medium and a heat storage fluid; a thermochemical heat storage medium outlet, connected to the heat exchange device, for directly outputting the thermochemical heat storage medium, or outputting the thermochemical heat storage medium after heat exchange with the heat storage fluid; The heat storage fluid outlet is connected to the heat exchange device and is used to output the heat storage fluid after heat exchange with the thermochemical heat storage medium.

2. The vehicle-mounted mobile heating system according to claim 1, characterized in that: The heat exchange device is a fan, and the heat storage fluid is air; and / or, The heat exchange device is a heat exchanger, and the heat storage fluid is water.

3. The vehicle-mounted mobile heating system according to claim 1, characterized in that: The inner wall or outer wall of the heat storage tank is covered with a heat insulation layer.

4. The vehicle-mounted mobile heating system according to claim 1, characterized in that: The heat storage medium is a heat storage particle or a heat storage module. The heat storage medium includes an inert heat storage medium and a thermochemical heat storage medium. The inert heat storage medium is a combination of one or more of quartz sand, silicon carbide, bauxite, and ceramics. The thermochemical heat storage medium is a combination of one or more of metal oxides, carbonates, and hydrides.

5. A vehicle, characterized in that: A vehicle-mounted mobile heating system according to any one of claims 1 to 4.

6. A heating method, characterized in that: The following steps are involved: a loading step of loading a plurality of thermochemical heat storage media of different temperatures and different types into a plurality of chambers of a heat storage tank of a vehicle in a manner separate from one another; a heating step of heating the thermochemical heat storage medium so that the temperature of the thermochemical heat storage medium is maintained above the reaction temperature; a heat exchange step of exchanging heat between the thermochemical heat storage medium and the heat storage fluid; The medium supply step uses a vehicle moving to the destination to supply one or more types of thermochemical heat storage media that have not undergone heat exchange, thermochemical heat storage media that have undergone heat exchange with a heat storage fluid, and one or more types of heat storage fluids that have undergone heat exchange with a thermochemical heat storage medium.

7. The heating method according to claim 6, characterized in that: The heat exchange step is to blow air to the thermochemical heat storage medium, and the medium supply step is to supply high-temperature air; and / or, the heat exchange step is to use cold water to exchange heat with the thermochemical heat storage medium, and the medium supply step is to supply hot water or water vapor.

8. The heating method according to claim 6, characterized in that: Also includes: The heat preservation step comprises providing a heat preservation layer covering the thermochemical heat storage medium.

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