Heat storage equipment and mobile heat storage device

Abstract

The invention relates to heat storage equipment and a movable heat storage device, and the heat storage equipment comprises a heat storage device which comprises a heat exchange pipe and a heat storage unit, and the heat exchange pipe penetrates through the heat storage unit, so that liquid flowing through the heat exchange pipe can absorb heat of the heat storage unit and then is evaporated; the temperature and pressure reducer comprises a gas inlet, a gas outlet and a liquid inlet, the gas inlet is communicated with the outlet of the heat exchange pipe, the gas outlet is used for discharging steam treated by the temperature and pressure reducer, and the liquid inlet is communicated with a second liquid supply pipe used for providing temperature and pressure reducing water for the temperature and pressure reducer. The temperature and pressure of the output steam can be stable so as to reach the set temperature and pressure.

Description

Technical Field

[0001] The present disclosure relates to the field of mobile heat storage technology, and in particular, to a heat storage device and a mobile heat storage apparatus. Background Art

[0002] At present, there are still a large number of areas in many cities in my country that cannot be covered by heating pipelines, while industrial enterprises, hotels, bathing centers, schools, hospitals and other users in the region have a large demand for thermal energy. On the contrary, in the vicinity of the city, a large number of factories have some waste heat that is directly discharged. The direct discharge of these waste heat will not only bring unnecessary energy waste, but also cause environmental pollution.

[0003] Based on this, the use of mobile heat storage heating technology can effectively improve the utilization rate of waste heat and avoid unnecessary energy waste. That is, mobile heat storage heating technology can be understood as recycling waste heat and other thermal energy resources in a certain place and storing them in a storage heat source device, transporting the heat energy to another place by vehicle, and then releasing the heat energy into the heating system, and finally providing the required heat energy to users through the heating system. Among them, a heat storage body for storing waste heat and other thermal energy resources is provided in the energy storage heat source device. The heat storage body can release its own stored heat into the heating system in the form of heat exchange, so as to be used for urban heating or factory production, for example. However, as the heat storage body continues to exchange heat, its own temperature continues to drop, which leads to the continuous change of the quality of the steam generated by the heat exchange. The quality of this steam often fails to meet the needs of industrial production and can only be used for some basic heating purposes. Summary of the invention

[0004] The purpose of the present disclosure is to provide a heat storage device and a mobile heat storage device, so as to stabilize the temperature and pressure of the output steam to reach the set temperature and pressure, so as to at least partially solve the above technical problems.

[0005] According to a first aspect of the present disclosure, a heat storage device is provided, comprising:

[0006] A heat storage device, comprising a heat exchange tube and a heat storage unit, wherein the heat exchange tube runs through the heat storage unit so that liquid flowing through the heat exchange tube can absorb heat from the heat storage unit and then evaporate; and

[0007] The temperature reducer and pressure reducer comprises a gas inlet, a gas outlet and a liquid inlet, wherein the gas inlet is connected to the outlet of the heat exchange tube, the gas outlet is used to discharge the steam processed by the temperature reducer and pressure reducer, and the liquid inlet is connected to a second liquid supply pipe for providing cooling water to the temperature reducer and pressure reducer.

[0008] Optionally, the heat storage device comprises a controller and a first liquid supply pipe connected to the inlet of the heat exchange tube, and the first liquid supply pipe is provided with a first flow regulating device connected to the controller signal; and / or,

[0009] The second liquid supply pipe is provided with a second flow regulating device which is connected to the controller signal.

[0010] Optionally, the first flow regulating device comprises a first liquid supply pump and / or a first flow regulating valve connected to the controller signal; and / or,

[0011] The second flow regulating device includes a second liquid supply pump and / or a second flow regulating valve connected to the controller signal.

[0012] Optionally, the heat storage device includes a liquid supply main pipe, and the liquid supply main pipe is connected to the inlet of the first liquid supply pipe and the inlet of the second liquid supply pipe respectively.

[0013] Optionally, the heat storage device includes a water tank and a connecting pipe connected to the water tank, the connecting pipe is respectively connected to the liquid supply main pipe, the inlet of the first liquid supply pipe and the inlet of the second liquid supply pipe, and the liquid supply main pipe, the first liquid supply pipe, the second liquid supply pipe and the connecting pipe are each provided with a stop valve.

[0014] Optionally, the heat storage device further comprises a first bypass pipe, the first bypass pipe is connected between the water tank and the first liquid supply pipe, and a first overflow valve is arranged on the first bypass pipe; and / or,

[0015] The heat storage device further includes a second bypass pipe, the second bypass pipe is connected between the water tank and the second liquid supply pipe, and a second overflow valve is arranged on the second bypass pipe.

[0016] Optionally, the heat storage device includes a shell, the heat storage device, the temperature and pressure reducing device and the water tank are all arranged in the shell, the shell is provided with a discharge port connected to the gas outlet, the liquid supply main pipe runs through the shell, and the inlet of the liquid supply main pipe is located outside the shell.

[0017] Optionally, the heat storage unit includes a heat storage material, the heat storage material includes a carbonaceous component and a graphite component, or the heat storage material includes a carbonaceous component, a graphite component and inorganic oxide particles.

[0018] Optionally, the carbonaceous component includes amorphous carbon, the graphite component includes at least one of natural graphite and artificial graphite, and the inorganic oxide particles include at least one of silicon oxide, boron oxide, zirconium oxide, titanium oxide and silicon carbide.

[0019] Optionally, based on the total weight of the heat storage material, the amount of the carbonaceous component is 8-30% by weight, the amount of the graphite component is 70-92% by weight, and the amount of the inorganic oxide particles is 0-15% by weight.

[0020] Optionally, the heat storage device includes a protective shell, the heat storage unit is arranged in the protective shell, the inlet and outlet of the heat exchange tube are located outside the protective shell, and the protective shell is provided with a carbon monoxide sensor for detecting carbon monoxide in the protective shell.

[0021] Optionally, the protective shell is filled with protective gas, and a first pressure sensor for detecting the pressure inside the protective shell is provided on the protective shell.

[0022] Optionally, the heat exchange tube includes a first interface tube, a second interface tube, a first heat exchange main tube, a second heat exchange main tube and a heat exchange sub-tube. The number of the first heat exchange main tubes is multiple, and the multiple first heat exchange main tubes are arranged side by side and are all connected to the first interface tube. The number of the second heat exchange main tubes is multiple, and the multiple second heat exchange main tubes are arranged side by side and are all connected to the second interface tube. The multiple first heat exchange main tubes and the multiple second heat exchange main tubes are respectively located on the opposite outer sides of the protective shell and are arranged symmetrically. The symmetrically arranged first heat exchange main tubes and the second heat exchange main tubes are both connected with the multiple heat exchange sub-tubes that pass through the protective shell and are arranged side by side. The second interface tube is connected to the gas inlet, and the first interface tube is connected to the first liquid supply pipe.

[0023] Optionally, the heat storage device further includes a heat storage inlet pipe and a heat storage outlet pipe, wherein the heat storage inlet pipe is connected to the inlet of the heat exchange tube and is used to provide a heat storage medium to the heat exchange tube so that the heat storage unit can absorb the heat of the heat storage medium, and the heat storage outlet pipe is connected to the outlet of the heat exchange tube.

[0024] Optionally, the heat storage device further comprises an electric heater, a heating tube of the electric heater is at least partially inserted into the heat storage unit.

[0025] According to a second aspect of the present disclosure, there is also provided a mobile heat storage device, comprising a vehicle and the heat storage equipment arranged on the vehicle.

[0026] Through the above technical solution, the liquid flowing through the heat exchange tube absorbs the heat of the heat storage unit and then evaporates. As the liquid continues to exchange heat with the heat storage unit, the temperature of the heat storage unit itself will continue to decrease, thereby making the temperature and pressure of the steam discharged from the heat exchange tube unstable. The unstable steam can be processed by a temperature and pressure reducer, so that the temperature and pressure of the processed steam can be stabilized and can reach the preset temperature and pressure, thereby ensuring that the quality (temperature and pressure) of the steam discharged from the heat storage device meets the requirements.

[0027] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0029] Figure 1 is a schematic diagram of a mobile heat storage device provided in an exemplary embodiment of the present disclosure;

[0030] Figure 2 Schematic diagram of the structure of a heat storage device provided in an exemplary embodiment of the present disclosure.

[0031] Description of Reference Numerals

[0032] 1-heat storage device; 110-heat exchange tube; 111-first interface tube; 112-second interface tube; 113-first heat exchange mother tube; 114-second heat exchange mother tube; 115-heat exchange sub-tube; 120-heat storage unit; 130-protective shell; 2-temperature and pressure reducer; 210-gas inlet; 220-gas outlet; 230-liquid inlet; 3-second liquid supply pipe; 4-first liquid supply pipe; 5-first liquid supply pump; 6-first flow regulating valve; 7-second liquid supply pump; 8-second flow regulating valve ;9-liquid supply main pipe;10-water tank;11-connecting pipe;12-stop valve;13-first bypass pipe;14-first overflow valve;15-second bypass pipe;16-housing;17-discharge port;18-carbon monoxide sensor;19-first pressure sensor;20-heat storage inlet pipe;21-heat storage outlet pipe;22-heating pipe;23-second overflow valve;24-vehicle;25-first temperature sensor;26-protective gas filling pipeline;27-first pipeline;28-second pipeline. DETAILED DESCRIPTION

[0033] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.

[0034] In the present disclosure, unless otherwise stated, the directional words used, such as "upper" and "lower", generally refer to the "upper" and "lower" relative to the gravity direction when the corresponding parts are in use, and "inner" and "outer" refer to the inside and outside relative to the outline of the parts or structures themselves. In addition, it should be noted that the terms used, such as "first" and "second", etc., are used to distinguish one element from another element and do not have order and importance. In addition, in the description with reference to the drawings, the same mark in different drawings represents the same element.

[0035] In order to achieve the above object, the present disclosure provides a heat storage device, referring to Figure 1 As shown, the heat storage device includes a heat storage device 1 and a temperature reducing and pressure reducing device 2. The heat storage device 1 includes a heat exchange tube 110 and a heat storage unit 120. The heat exchange tube 110 runs through the heat storage unit 120 so that the liquid flowing through the heat exchange tube 110 can absorb the heat of the heat storage unit 120 and then evaporate. The temperature reducing and pressure reducing device 2 includes a gas inlet 210, a gas outlet 220 and a liquid inlet 230. The gas inlet 210 is connected to the outlet of the heat exchange tube 110. The gas outlet 220 is used to discharge the steam processed by the temperature reducing and pressure reducing device 2. The liquid inlet 230 is connected to a second liquid supply pipe 3 for providing temperature reducing water to the temperature reducing and pressure reducing device 2.

[0036] Through the above technical solution, the liquid flowing through the heat exchange tube 110 absorbs the heat of the heat storage unit 120 and then evaporates. As the liquid continuously exchanges heat with the heat storage unit 120, the temperature of the heat storage unit 120 itself will continue to decrease, so that the temperature and pressure of the steam discharged from the heat exchange tube 110 are unstable. The unstable steam can be processed by the temperature reducer 2, so that the temperature and pressure of the processed steam can be stabilized and can reach the preset temperature and pressure, thereby ensuring that the quality (temperature and pressure) of the steam discharged from the heat storage device meets the requirements.

[0037] In order to provide the heat storage device with the heat exchange medium required in the heat release process, the heat storage device includes a controller and a first liquid supply pipe 4 connected to the inlet of the heat exchange tube 110, wherein the heat exchange medium can be a liquid such as boiler feed water. In the process of providing the heat exchange medium to the heat storage device 1, in order to be able to control the rate of providing the heat exchange medium to the heat storage device 1, a first flow regulating device connected to the controller signal can be provided on the first liquid supply pipe 4. The first flow regulating device includes a first liquid supply pump 5 connected to the controller signal and / or a first flow regulating valve 6 connected to the controller signal.

[0038] Through the preliminary control of the first flow regulating device, the flow of the liquid flowing through the heat exchange tube 110 can be adjusted, for example, the flow of the liquid flowing through the heat exchange tube 110 can be stabilized, or the flow of the liquid flowing through the heat exchange tube 110 can be controlled in real time according to the temperature of the heat storage unit 120 to preliminarily adjust the temperature of the steam after heat exchange. In addition, the steam enters the gas inlet 210 of the temperature reducer 2 from the outlet of the heat storage device 1, and in the internal space of the temperature reducer 2, it is combined with the desuperheated water treated by the atomizer integrated in the temperature reducer 2, and under the treatment of the pressure reducing valve and the throttling orifice plate integrated in the temperature reducer 2, a constant temperature and pressure stable steam is generated for user use. A relatively stable steam flow can reduce the difficulty of regulating the desuperheated water. Among them, the temperature and pressure reducing valve can adopt the existing structure, and its principle is to adjust the flow rate of the medium by controlling the opening of the opening and closing parts in the valve body to reduce the pressure of the medium. At the same time, the opening of the opening and closing parts is adjusted with the help of the pressure behind the valve to keep the pressure behind the valve within a certain range, and cooling water is sprayed in the valve body or behind the valve to reduce the temperature of the medium. This disclosure will not go into details.

[0039] In order to regulate the cooling water, a second flow regulating device connected to the controller signal is provided on the second liquid supply pipe 3. The second flow regulating device includes a second liquid supply pump 7 connected to the controller signal and / or a second flow regulating valve 8 connected to the controller signal.

[0040] In some specific embodiments, reference Figure 1 As shown in the figure, a first liquid supply pump 5 and a first flow regulating valve 6 are sequentially provided on the first liquid supply pipe 4 along the flow direction of the liquid. The first flow regulating valve 6 can be a first digital flow control valve integrated with a flow sensor. A plurality of first temperature sensors 25 for monitoring the temperature of the heat reservoir can be provided at the heat reservoir. Both the first digital flow control valve and the first temperature sensor 25 are connected to the controller signal. The controller can adjust the pressure and flow of the liquid in the first liquid supply pipe by controlling the opening of the first digital flow control valve and the operating frequency of the first liquid supply pump according to the real-time flow signal measured by the first digital flow control valve and the real-time temperature signal measured by the first temperature sensor 25.

[0041] Similarly, reference Figure 1 As shown in the figure, a second liquid supply pump 7 and a second flow regulating valve 8 are sequentially provided on the second liquid supply pipe 3 along the flow direction of the liquid. The second flow regulating valve 8 can be a second digital flow control valve integrated with a flow sensor. A second temperature sensor, a second flow sensor and a second pressure sensor can be provided on the first pipeline 27 connected between the gas inlet 210 and the heat exchange tube 110. The second digital flow control valve, the second temperature sensor and the second flow sensor are all connected to the controller signal.

[0042] In order to monitor the quality of the steam after being treated by the temperature reducer 2, and to determine the standard of the flow rate and pressure of the liquid in the first liquid supply pipe 4 and the second liquid supply pipe 3, a third pressure sensor, a third temperature sensor and a third flow sensor can be provided on the second pipeline 28 connected to the gas outlet 220. The third pressure sensor, the third temperature sensor and the third flow sensor are all connected to the controller signal. The controller compares the real-time pressure signal measured by the third pressure sensor, the real-time temperature signal measured by the third temperature sensor and the real-time flow signal measured by the third flow sensor with the flow rate, pressure and temperature values ​​of the steam required by the target user, and determines the flow rate and pressure of the liquid in the first liquid supply pipe and the second liquid supply pipe according to the numerical difference, so that the quality of the steam after being treated by the temperature reducer can meet the user's usage requirements.

[0043] Among them, in a feasible implementation manner, the controller adjusts the liquid pressure and flow rate in the second liquid supply pipe by controlling the opening of the second flow regulating valve 8 and the operating frequency of the second liquid supply pump according to the real-time temperature signal measured by the second temperature sensor, the real-time flow signal measured by the second flow sensor, and the second pressure signal measured by the second pressure sensor, and in combination with the real-time temperature signal measured by the third temperature sensor, the real-time pressure signal measured by the third pressure sensor, and the real-time flow signal measured by the third flow sensor, to achieve precise temperature and pressure regulation, so that the quality of the produced steam meets the requirements.

[0044] In some embodiments, reference Figure 1 As shown in the figure, the heat storage device may also include a first one-way valve and a second one-way valve. The first one-way valve is arranged on the first liquid supply pipe 4 and is located downstream of the first digital flow control valve. The second one-way valve is arranged on the second liquid supply pipe 3 and is located downstream of the second digital flow control valve. The first one-way valve and the second one-way valve can prevent the boiler feed water in the first liquid supply pipe 4 and the second liquid supply pipe 3 from flowing back, and can improve the directionality and stability of the boiler feed water flow in the pipeline.

[0045] Since boiler feed water is oxygen-free water treated by a deaerator, oxygen-free water has little damage to pipes and system components, so the heat exchange medium in the first liquid supply pipe 4 can be boiler feed water, and the cooling water in the second liquid supply pipe 3 can also be boiler feed water. In order to provide boiler feed water to the first liquid supply pipe 4 and the second liquid supply pipe 3, the heat storage device also includes a liquid supply main pipe 9, which is connected to the inlet of the first liquid supply pipe 4 and the inlet of the second liquid supply pipe 3 respectively. The inlet of the liquid supply main pipe 9 can obtain boiler feed water by connecting to the boiler feed water circulation system.

[0046] In some embodiments, reference Figure 1As shown in the figure, the heat storage device may also include a first filter and a second filter. The first filter is arranged on the first liquid supply pipe 4 and is located upstream of the first liquid supply pump 5. The second filter is arranged on the second liquid supply pipe 3 and is located upstream of the second liquid supply pump 7. The first filter and the second filter can filter out impurities brought in by the boiler feed water circulation system, thereby further increasing the quality of the final product steam.

[0047] The heat storage device requires a large amount of boiler feed water during the heat release process, and in actual use, it may be encountered that the boiler feed water required during the heat release process cannot be provided on site. In order to avoid this situation, the heat storage device can also include a water tank 10 and a connecting pipe 11 connected to the water tank 10, the connecting pipe 11 is respectively connected to the liquid supply main pipe 9, the inlet of the first liquid supply pipe 4 and the inlet of the second liquid supply pipe 3, and the liquid supply main pipe 9, the first liquid supply pipe 4, the second liquid supply pipe 3 and the connecting pipe 11 are respectively provided with a stop valve 12.

[0048] The heat storage device can provide boiler feed water for the heat release process by storing boiler feed water in the water tank in advance. Figure 1 As shown in the figure, a connecting pipe 11 is provided at the water tank, and the connecting pipe 11, the first liquid supply pipe 4, the second liquid supply pipe 3 and the liquid supply main pipe 9 can be connected together through a four-way joint. In order to prevent cross-flow between different pipelines, a first stop valve is provided at one end of the first liquid supply pipe 4 close to the four-way joint, a second stop valve is provided at one end of the second liquid supply pipe 3 close to the four-way joint, and a third stop valve is provided at one end of the connecting pipe 11 close to the four-way joint. At the same time, in order to control the connection between the heat storage device and the boiler feed water circulation system, a total stop valve is provided at one end of the liquid supply main pipe 9 close to the four-way joint.

[0049] In some embodiments, reference Figure 1 As shown in , a liquid level sensor may also be provided in the water tank 10, and the liquid level sensor can monitor the liquid level in the water tank, thereby determining the amount of water stored in the water tank.

[0050] In order to protect the heat storage device, the heat storage device may further include a housing 16. Figure 1 As shown in the figure, the heat storage device 1, the temperature reducer and pressure reducer 2 and the water tank 10 are all arranged in the outer shell 16, and the outer shell 16 is provided with a discharge port 17. The gas outlet 220 of the temperature reducer and pressure reducer 2 is connected to the discharge port 17 through the second pipeline 28. The liquid supply main pipe 9 runs through the outer shell, and the inlet of the liquid supply main pipe is located outside the outer shell 16.

[0051] The housing 16 can protect the pipelines in the heat storage device from external impact, protect the staff from the high temperature of the heat storage device, and facilitate the installation of the heat storage device on a vehicle. The housing 16 can be arranged in a container-like form, for example.

[0052] Excessive pressure in the pipeline may damage the pipeline. In order to protect the first liquid supply pipe 4, the heat storage device further includes a first bypass pipe 13. Figure 1 As shown in FIG, the first bypass pipe 13 is connected between the water tank 10 and the first liquid supply pipe 4, and a first overflow valve 14 is provided on the first bypass pipe 13. The working threshold of the first overflow valve 14 can be 2 MPa or any set value. For example, when the pressure of the first liquid supply pipe 4 is greater than 2 MPa, the first overflow valve 14 is opened to send part of the boiler feed water to the water tank 10.

[0053] In order to protect the second liquid supply pipe 3, the heat storage device further includes a second bypass pipe 15. Figure 1 As shown in FIG, the second bypass pipe 15 is connected between the water tank 10 and the second liquid supply pipe 3, and a second overflow valve 23 is provided on the second bypass pipe 15. The working threshold of the second overflow valve 23 can be an arbitrary set value of 2 MPa. For example, when the pressure of the second liquid supply pipe 3 is greater than 2 MPa, the second overflow valve 23 is opened to send part of the boiler feed water to the water tank 10.

[0054] In order to protect the first pipeline 27, a second pressure sensor and a first pressure relief valve can be set on the first pipeline 27. The first pressure relief valve and the second pressure sensor are both connected to the controller signal. The controller controls the state of the first pressure relief valve according to the real-time pressure signal measured by the second pressure sensor.

[0055] In order to protect the second pipeline 28, a second pressure relief valve may be provided on the second pipeline 28. The second pressure relief valve is connected to the controller signal. The controller controls the state of the second pressure relief valve according to the real-time pressure signal measured by the third pressure sensor.

[0056] Excessive pressure in the water tank 10 can also cause damage to the water tank 10. In order to protect the water tank 10, a breathing valve can be provided on the top of the water tank 10. The breathing valve ensures that the water tank 10 can be isolated from the atmosphere within a certain pressure range, and can be connected to the atmosphere when the pressure exceeds or falls below this pressure range to avoid damage to the water tank due to overpressure or vacuum. It can also reduce the evaporation loss of boiler feed water and solve the problem of increased oxygen content in the liquid caused by contact between boiler feed water and the atmosphere to a certain extent.

[0057] The heat storage unit 120 includes a heat storage material. To increase the heat storage density and thermal conductivity of the heat storage material, the heat storage material includes a carbonaceous component, a graphite component, or the heat storage material includes a carbonaceous component, a graphite component and inorganic oxide particles.

[0058] The carbonaceous component includes amorphous carbon, which is formed by high-temperature carbonization of a binder (asphalt or resin), the graphite component includes at least one of natural graphite and artificial graphite, and the inorganic oxide particles include at least one of silicon oxide, boron oxide, zirconium oxide, titanium oxide and silicon carbide.

[0059] Among them, based on the total weight of the heat storage material, the amount of carbonaceous components is 8-30% by weight, the amount of graphite components is 70-92% by weight, and the amount of inorganic oxide particles is 0-15% by weight. Specifically, the inorganic oxide particles have a particle size of 50-200 μm and contain at least one of silicon oxide, boron oxide, zirconium oxide, titanium oxide, and silicon carbide. The heat storage temperature of the heat storage material can reach up to 900°C, the thermal conductivity can reach up to 100W / mk, and the heat storage density is 900kJ / kg.

[0060] In the present disclosure, regarding the preparation of heat storage materials, the above-mentioned carbonaceous components, graphite components and inorganic oxide particles can be uniformly mixed in a certain proportion to obtain a mixture, the mixture is molded, and the molded blocks produced after molding are subjected to high-temperature heat treatment to finally obtain the heat storage material.

[0061] In order to monitor whether the heat exchange tube 110 is leaking, refer to Figure 1 As shown in , the heat storage device 1 includes a protective shell 130, the heat storage unit 120 is arranged in the protective shell 130, and the inlet and outlet of the heat exchange tube 110 are located outside the protective shell 130. Since the heat exchange tube 110 at least partially penetrates the heat storage unit 120, when the heat exchange tube 110 leaks, the heat exchange medium flowing inside the heat exchange tube 110 will also directly contact the heat storage material. When the heat exchange medium is boiler feed water, since carbonaceous components are used as components of the heat storage material, the boiler feed water and the heat storage material will react with water gas to produce carbon monoxide and hydrogen. The protective shell 130 can also prevent carbon monoxide and hydrogen from contacting with oxygen and exploding in a high temperature environment. In order to detect whether part of the heat exchange tubes in the protective shell 130 are leaking, a carbon monoxide sensor 18 for detecting carbon monoxide in the protective shell 130 is provided on the protective shell 130. The number of carbon monoxide sensors 18 can be multiple, and the multiple carbon monoxide sensors 18 are respectively arranged at different positions in the protective shell 130, so that the carbon monoxide content in the protective shell 130 can be detected in a timely and accurate manner. When the carbon monoxide sensor 18 detects that the carbon monoxide content is not 0, the carbon monoxide sensor sends out an alarm to notify the on-site staff to handle the problem.

[0062] In order to further increase the safety level of the heat storage device 1, the protective shell 130 is filled with a protective gas, which can be a nitrogen-like gas with stable chemical properties or an inert gas such as helium. Since the protective gas does not react with the heat storage material, nor with the hydrogen or carbon monoxide that may be produced, the safety level of the heat storage device can be improved. At the same time, the protective shell 130 is provided with a first pressure sensor 19 for detecting the pressure inside the protective shell. When the protective shell 130 leaks, the pressure inside the protective shell 130 will decrease abnormally. When the heat exchange tube 110 inside the protective shell 130 leaks, the pressure inside the protective shell 130 will increase abnormally. When the first pressure sensor 19 detects that the pressure inside the protective shell 130 is abnormal, it will sound an alarm to notify the on-site staff to handle it. Among them, a protective gas filling pipeline 26 can be provided on the protective shell 130 to fill the protective shell 130 with protective gas.

[0063] The heat exchange tube 110 can be arranged in any suitable manner according to actual needs, Figure 2 As shown in , the heat exchange tube 110 may include a first interface tube 111, a second interface tube 112, a first heat exchange mother tube 113, a second heat exchange mother tube 114 and a heat exchange sub-tube 115. The number of the first heat exchange mother tube 113 is multiple, and the multiple first heat exchange mother tubes 113 are arranged side by side and are all connected to the first interface tube 111. The number of the second heat exchange mother tube 114 is multiple, and the multiple second heat exchange mother tubes 114 are arranged side by side and are all connected to the second interface tube 112. The multiple first heat exchange mother tubes 113 and the multiple second heat exchange mother tubes 114 are respectively located in the protective shell 130 The two opposite outer sides are symmetrically arranged, and the symmetrically arranged first heat exchange mother pipe 113 and the second heat exchange mother pipe 114 are both connected with a plurality of heat exchange sub-tubes 115 that penetrate the protective shell 130 and are arranged side by side. The second interface pipe 112 is connected to the gas inlet 210, and the first interface pipe 111 is connected to the first liquid supply pipe 4. The heat storage material can be processed into any suitable shape to be placed in the protective shell. For example, the heat storage material can be processed into a block shape, and a plurality of block-shaped heat storage materials are arranged in a matrix to form an integral heat storage unit 120, and the present disclosure does not limit this. When the first liquid supply pump 5 is started, the liquid flows into the first interface pipe 111 through the first liquid supply pipe 4, and the liquid entering the first interface pipe 111 flows into the heat exchange sub-tube 115 through the first heat exchange mother pipe 113. After the liquid flows into the heat exchange sub-tube 115, the liquid exchanges heat with the heat storage unit 120 located outside the heat exchange sub-tube 115 and generates steam. The steam passes through the heat exchange sub-tube 115, the second heat exchange mother pipe 114, and the second interface pipe 112 in sequence, and then enters the temperature and pressure reducer 2 for treatment.

[0064] In some embodiments, in the heat storage device 1, the heat release process and the heat storage process can share the same set of heat exchange tubes 110. For example, the heat storage device also includes a heat storage inlet pipe 20 and a heat storage outlet pipe 21. The heat storage inlet pipe 20 is connected to the inlet of the heat exchange tube 110 and is used to provide a heat storage medium to the heat exchange tube 110 so that the heat storage unit 120 can absorb the heat of the heat storage medium. The heat storage outlet pipe 21 is connected to the outlet of the heat exchange tube 110.

[0065] In this way, the heat release process and the heat storage process of the heat storage device 1 can share a set of heat exchange tubes 110, so that the space occupied by a set of heat exchange tubes can be reduced within the limited heat storage body space, and the space can be used to increase the volume or quantity of heat storage materials to increase the heat storage capacity, or to increase the heat exchange area by increasing the number of heat exchange sub-tubes 115. In addition, the use of pipe materials can be reduced, reducing costs.

[0066] In addition, heat can be provided to the heat storage device 1 in other forms. For example, the heat storage device can also include an electric heater, and the heating tube 22 of the electric heater is at least partially inserted into the heat storage unit 120. Thus, valley electricity can be used to power the electric heater, and then the heat storage unit 120 is heated and stored through the heating tube 22.

[0067] On the basis of the above technical solution, the second aspect of the present disclosure further provides a mobile heat storage device, comprising a vehicle 24 and a heat storage device according to the above first aspect or any embodiment of the above first aspect disposed on the vehicle 24. By transporting the heat storage device in a vehicle-mounted form, the needs of different customers can be fully met, and the flexibility of use of the heat storage device can be improved.

[0068] The present disclosure exemplarily describes the process of long-distance heat transport using mobile heat storage and heating technology. The heat storage device can be installed on a vehicle 24. When the heat storage device needs to be used for heat storage, the vehicle 24 carrying the heat storage device can be driven to the location of the waste heat source, such as a factory, and then the heat storage unit 120 in the heat storage device is heated, that is, heat is stored by the heat storage unit 120. After storage, the heat storage device is moved by the vehicle to a location where the heat stored by the heat storage unit 120 is needed, thereby completing the use of the heat (water is heat-exchanged with the heat storage unit 120 to obtain steam).

[0069] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0070] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0071] In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A heat storage device, characterized in that: include: A heat storage device, comprising a heat exchange tube and a heat storage unit, wherein the heat exchange tube runs through the heat storage unit so that the liquid flowing through the heat exchange tube can absorb the heat of the heat storage unit and then evaporate; and The temperature reducer and pressure reducer comprises a gas inlet, a gas outlet and a liquid inlet, wherein the gas inlet is connected to the outlet of the heat exchange tube, the gas outlet is used to discharge the steam processed by the temperature reducer and pressure reducer, and the liquid inlet is connected to a second liquid supply pipe for providing cooling water to the temperature reducer and pressure reducer.

2. The heat storage device according to claim 1, characterized in that: The heat storage device comprises a controller and a first liquid supply pipe connected to the inlet of the heat exchange pipe, and the first liquid supply pipe is provided with a first flow regulating device connected to the controller signal; and / or, The second liquid supply pipe is provided with a second flow regulating device which is connected to the controller signal.

3. The heat storage device according to claim 2, characterized in that: The first flow regulating device comprises a first liquid supply pump and / or a first flow regulating valve connected to the controller signal; and / or, The second flow regulating device includes a second liquid supply pump and / or a second flow regulating valve connected to the controller signal.

4. The heat storage device according to claim 2, characterized in that: The heat storage device comprises a liquid supply main pipe, and the liquid supply main pipe is communicated with an inlet of the first liquid supply pipe and an inlet of the second liquid supply pipe respectively.

5. The heat storage device according to claim 4, characterized in that: The heat storage device includes a water tank and a connecting pipe connected to the water tank, the connecting pipe is respectively connected to the liquid supply main pipe, the inlet of the first liquid supply pipe and the inlet of the second liquid supply pipe, and the liquid supply main pipe, the first liquid supply pipe, the second liquid supply pipe and the connecting pipe are each provided with a stop valve.

6. The heat storage device according to claim 5, characterized in that: The heat storage device further comprises a first bypass pipe, the first bypass pipe is connected between the water tank and the first liquid supply pipe, and a first overflow valve is arranged on the first bypass pipe; and / or, The heat storage device further includes a second bypass pipe, the second bypass pipe is connected between the water tank and the second liquid supply pipe, and a second overflow valve is arranged on the second bypass pipe.

7. The heat storage device according to claim 5, characterized in that: The heat storage device includes a shell, the heat storage device, the temperature and pressure reducing device and the water tank are all arranged in the shell, the shell is provided with a discharge port connected to the gas outlet, the liquid supply main pipe runs through the shell, and the inlet of the liquid supply main pipe is located outside the shell.

8. The heat storage device according to claim 1, characterized in that: The heat storage unit includes a heat storage material, wherein the heat storage material includes a carbonaceous component and a graphite component, or the heat storage material includes a carbonaceous component, a graphite component and inorganic oxide particles.

9. The heat storage device according to claim 8, characterized in that: The carbonaceous component includes amorphous carbon, the graphite component includes at least one of natural graphite and artificial graphite, and the inorganic oxide particles include at least one of silicon oxide, boron oxide, zirconium oxide, titanium oxide and silicon carbide.

10. The heat storage device according to claim 8 or 9, characterized in that: Based on the total weight of the heat storage material, the amount of the carbonaceous component is 8-30% by weight, the amount of the graphite component is 70-92% by weight, and the amount of the inorganic oxide particles is 0-15% by weight.

11. The heat storage device according to claim 8, characterized in that: The heat storage device comprises a protective shell, the heat storage unit is arranged in the protective shell, the inlet and outlet of the heat exchange tube are located outside the protective shell, and the protective shell is provided with a carbon monoxide sensor for detecting carbon monoxide in the protective shell.

12. The heat storage device according to claim 11, characterized in that: The protective shell is filled with protective gas, and a first pressure sensor for detecting the pressure inside the protective shell is arranged on the protective shell.

13. The heat storage device according to claim 11, characterized in that: The heat exchange tubes include a first interface tube, a second interface tube, a first heat exchange main tube, a second heat exchange main tube and a heat exchange sub-tube. There are multiple first heat exchange main tubes, which are arranged side by side and are all connected to the first interface tube. There are multiple second heat exchange main tubes, which are arranged side by side and are all connected to the second interface tube. The multiple first heat exchange main tubes and the multiple second heat exchange main tubes are respectively located on the opposite outer sides of the protective shell and are arranged symmetrically. The symmetrically arranged first heat exchange main tube and the second heat exchange main tube are both connected with multiple heat exchange sub-tubes that penetrate the protective shell and are arranged side by side. The second interface tube is connected to the gas inlet, and the first interface tube is connected to the first liquid supply pipe.

14. The heat storage device according to claim 1, characterized in that: The heat storage device also includes a heat storage inlet pipe and a heat storage outlet pipe, wherein the heat storage inlet pipe is connected to the inlet of the heat exchange tube and is used to provide a heat storage medium to the heat exchange tube so that the heat storage unit can absorb the heat of the heat storage medium, and the heat storage outlet pipe is connected to the outlet of the heat exchange tube.

15. The heat storage device according to claim 1 or 14, characterized in that: The heat storage device further comprises an electric heater, a heating tube of which is at least partially inserted into the heat storage unit.

16. A mobile heat storage device, characterized in that: The invention comprises a vehicle and a heat storage device according to any one of claims 1 to 15 arranged on the vehicle.

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