Adsorption type movable heat storage vehicle

Abstract

The utility model relates to an adsorption type movable heat storage vehicle which comprises a heat storage device arranged in a carriage, the heat storage device comprises a plurality of heat storage modules, each heat storage module comprises a shell and a plurality of heat storage cores arranged in the shell in parallel, an air inlet pipe and an exhaust pipe are arranged at the positions, corresponding to the two ends of the heat storage cores, of the shell respectively, and the air inlet pipe and the exhaust pipe are communicated with the heat storage cores. The plurality of air inlet pipes are respectively communicated with the air inlet main pipe, and the plurality of exhaust pipes are respectively communicated with the exhaust main pipe; the heat storage core comprises a sleeve located outside and a ventilation pipe located in the middle of the sleeve, second ventilation holes are evenly formed in the pipe wall of the ventilation pipe, the space between the sleeve and the ventilation pipe is filled with granular heat storage materials, and the particle size of the heat storage materials is larger than that of the second ventilation holes. The adsorption type movable heat storage vehicle adopts a modular design, so that the standard production requirement can be conveniently met; and during heat storage, the heat loss is small, the heat storage density is large, and long-distance and large-time-span low-cost transportation and storage of low-grade heat such as industrial waste heat can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of heat storage heating, in particular to an adsorption-type mobile heat storage vehicle. Background Art

[0002] Phase change material thermal storage technology utilizes the heat absorption and release of materials during phase changes to store and release energy. It boasts high energy storage density, simple and compact devices, and a nearly constant temperature phase change process. Applications of phase change materials, such as in mobile thermal storage vehicles, hold great promise.

[0003] Existing medium and low temperature heat storage (below 120°C) mainly uses phase change material PCM or more traditional water tank heat storage. The heat storage density per unit mass of both is relatively low, which means that when transporting the same amount of energy, PCM and water heat storage require higher transportation costs. In addition, both PCM and water rely on convective heat transfer to achieve heat charging and discharging. During heat storage, the temperature of the heat storage body is much higher than the ambient temperature. The entire heat storage device has very high insulation requirements, but it is still impossible to completely eliminate heat loss. The above two points determine that PCM and water, two heat storage materials, cannot adjust the mismatch between heat supply and demand over a large time or space span. In addition, due to the limitation of the convective heat transfer coefficient, both PCM and water require a large heat exchange area and a large pump work to achieve large-scale heat charging and discharging in a short period of time.

[0004] Based on the above problems, there is an urgent need for an adsorption-type mobile heat storage vehicle with low heat loss, which can realize heat transportation over long distances and long time spans and has low transportation costs. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide an adsorption-type mobile heat storage vehicle, which adopts a modular design to meet the needs of standardized production; the heat loss during heat storage is small, the heat storage density is high, and low-cost transportation and storage of low-grade heat such as industrial waste heat can be achieved over long distances and long time spans.

[0006] In order to solve the above problems, the technical solution adopted by the present invention is:

[0007] An adsorption-type mobile thermal storage vehicle includes a thermal storage device disposed within a vehicle compartment, the thermal storage device including a plurality of thermal storage modules, the thermal storage modules including a housing and a plurality of thermal storage cores disposed in parallel within the housing, an air intake pipe and an exhaust pipe being disposed on the housing at positions corresponding to both ends of the thermal storage cores, the plurality of air intake pipes being respectively connected to an air intake main pipe, and the plurality of exhaust pipes being respectively connected to an exhaust main pipe;

[0008] The heat storage core includes a sleeve located on the outside and a ventilation pipe located in the middle of the sleeve, and second ventilation holes are evenly opened on the wall of the ventilation pipe. Granular heat storage material is filled between the sleeve and the ventilation pipe, and the particle size of the heat storage material is larger than the size of the second ventilation holes.

[0009] As an embodiment of the present invention, the outer shell includes a square shell with an open end and a sealing cover that is detachably arranged at the shell opening, the air inlet pipe is arranged in the middle of the sealing cover, and the exhaust pipe is arranged in the middle of the shell bottom opposite to the sealing cover.

[0010] As an embodiment of the present utility model, a compression box and a support box are respectively provided at both ends of the heat storage core in the shell, wherein the compression box is located on one side of the shell opening, a support block for supporting the support box is fixed on the shell, and a compression mechanism for clamping the compression box is provided on the sealing cover; the compression box and the support box are both flat square boxes, and first air holes for ventilation are evenly opened on both sides, and a wind shield corresponding to the air inlet pipe is provided in the middle of the outer side of the compression box.

[0011] As an embodiment of the present invention, the clamping mechanism includes a threaded hole opened at the corner of the sealing cover and a screw threaded in the threaded hole. The outer end of the screw is provided with a handle, and the inner end is connected to a pressure plate after passing through a through hole opened on the clamping box.

[0012] As an embodiment of the present invention, an annular first cover plate is detachably installed at both ends of the sleeve of the heat storage core, a first air vent is provided in the middle of the first cover plate, and an annular fixing ring is fixed in the middle of the inner side of the first cover plate at the position of the first air vent, and the outer diameter of the fixing ring is adapted to the inner diameter of the ventilation pipe.

[0013] As an embodiment of the present invention, a first annular cover plate and a second annular cover plate are detachably installed at both ends of the sleeve of the heat storage core, a first air hole is provided in the middle of the first cover plate, and an annular fixing ring is fixedly provided at the position of the first air hole in the middle of the inner side of the first cover plate, and the outer diameter of the fixing ring is adapted to the inner diameter of the ventilation pipe; a plurality of second air holes connected to the cavity between the sleeve and the ventilation pipe are evenly arranged on the circumference of the second cover plate, and a fixing block adapted to the inner diameter of the ventilation pipe is fixedly provided in the middle of the inner side of the second cover plate.

[0014] As an embodiment of the present invention, the ventilation pipe is cylindrical, the sleeve is cylindrical or cubic, and the heat storage cores are arranged in a rectangular array inside the shell.

[0015] As an embodiment of the present invention, the ventilation pipe is cylindrical, the sleeve is hexagonal, and the heat storage cores are interlaced and embedded in the outer shell.

[0016] As an embodiment of the present invention, the intake pipe and the intake main pipe, and the exhaust pipe and the exhaust main pipe are connected by quick-release connectors, and control valves are provided on the intake main pipe and the exhaust main pipe, and on the intake pipe and the exhaust pipe, and the intake main pipe and the exhaust main pipe both pass through the car body.

[0017] As an embodiment of the present invention, the shell is made of thermal insulation hard engineering plastic, or a high-temperature resistant heat-insulating layer is provided on the inner wall of the shell; the heat storage material is an adsorption-type heat storage material, such as aluminum silicate (silicate molecular sieve, modified aluminum silicate material, etc.), activated carbon, silica gel heat storage material, etc.

[0018] The beneficial effects of adopting the above technical solution are:

[0019] The heat storage material of this utility model adopts adsorption-type heat storage material. Through modular thermal battery design, an adsorption-type mobile heat storage vehicle is invented that can be used to recover low-grade waste heat from factories and then transport it to industrial and commercial buildings as a heat source for winter heating. It solves the pain points of mismatch between heat supply and demand in terms of low-grade industrial waste heat having nowhere to be used and energy shortage and environmental pollution in winter for civil heating.

[0020] The heat storage device in the adsorption-type mobile thermal storage vehicle utilizes a two-stage thermal storage unit: a thermal storage core and a thermal storage module. The thermal storage core is the smallest thermal storage unit, and multiple thermal storage cores are arranged and combined to form a thermal storage module. The entire thermal storage device is composed of 2 to 8 thermal storage modules. The thermal storage cores can be standardized and mass-produced according to production needs. The thermal storage modules can be connected in series and parallel according to the heat usage of the factory and heat users. Thermal storage vehicles with different heat storage capacities and heating temperatures can be designed. Furthermore, different numbers of thermal storage modules can be charged and discharged simultaneously according to the needs of heat users, thereby improving overall charging and discharging efficiency.

[0021] The heat storage material adopts adsorption type heat storage material, such as aluminum silicate (silicate molecular sieve, modified aluminum silicate material, etc.), activated carbon, silica gel heat storage material, etc. The heat storage material is selected according to the application requirements to make full use of the large amount of waste heat directly discharged in the industry. Since its heat storage principle is to utilize the adsorption and desorption of water, after the heat charging (desorption) is completed, as long as the inlet and outlet valves of the heat storage module are closed and no wet air enters, the heat storage material will not come into contact with water and will not release any heat. Therefore, using this kind of heat storage material to make a mobile heat storage vehicle can realize long-distance and long-time heat transportation, and the heat loss is very low. In theory, long-term zero heat loss heat storage can be achieved, and there will be no heat loss during the transportation process. When heat is needed, only wet air needs to be introduced. When the moisture is adsorbed by the heat storage material, heat is released. The air is dehumidified and heated at the same time. Then the high-temperature hot dry air can be connected to the heat exchanger to release heat to the water circulation of the building to meet the building's heat demand. Since the heat storage density per unit mass and per unit volume of the thermal storage material is much higher than that of traditional PCM and water, the mobile thermal storage vehicle can transport heat to users at a lower transportation cost. Under the condition of the same market value per unit heat, the economic transportation radius of factory waste heat can be greatly increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural diagram of the present utility model.

[0023] Figure 2 It is a schematic diagram of the top view of the heat storage device in the utility model.

[0024] Figure 3 It is a structural diagram of the heat storage module in the utility model.

[0025] Figure 4 It is a schematic cross-sectional structural diagram of the heat storage module in the present utility model.

[0026] Figure 5 yes Figure 4 Schematic diagram of the cross-sectional structure at AA in the middle.

[0027] Figure 6 yes Figure 5 Schematic diagram of the decomposed structure of the middle heat storage core.

[0028] Figure 7 yes Figure 5 Another structural cross-sectional diagram of the middle heat storage core.

[0029] Figure 8 yes Figure 4 Another structural diagram at AA in the middle.

[0030] Figure 9 yes Figure 4 Another structural diagram at AA in the middle.

[0031] Among them: 1 car head, 2 car body, 3 heat storage module, 4 air intake main pipe, 5 exhaust main pipe, 6 quick connector, 7 shell, 8 sealing cover, 801 threaded hole, 9 air intake pipe, 10 screw, 11 pressure plate, 12 handle, 13 pressing box, 14 first air vent, 1401 through hole, 15 wind shield, 16 support box, 17 support block, 18 exhaust pipe, 19 first bolt, 20 heat storage core, 21 sleeve, 22 ventilation pipe, 2201 second air vent, 23 first cover plate, 24 first air vent, 25 fixing ring, 26 second bolt, 27 heat storage material, 28 second cover plate, 29 second air vent, 30 fixing block. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention is described clearly and completely below in conjunction with specific embodiments.

[0033] like Figures 1-6 An adsorption-type mobile thermal storage vehicle is shown, comprising a thermal storage device disposed within a vehicle compartment 2. The thermal storage device comprises a plurality of thermal storage modules 3 fixed within the vehicle compartment 2 by bolts. Shock-absorbing material or a shock-absorbing device is disposed between the thermal storage modules 3 and the vehicle compartment 2. The thermal storage modules 3 comprise an outer shell and a plurality of thermal storage cores 20 disposed parallel therein. An air intake pipe 9 and an exhaust pipe 18 are disposed on the outer shell at positions corresponding to the ends of the thermal storage cores 20. The plurality of air intake pipes 9 are respectively connected to an air intake manifold 4, and the plurality of exhaust pipes 18 are respectively connected to an exhaust manifold 5.

[0034] The heat storage core 20 includes an external sleeve 21 and a ventilation tube 22 coaxially sleeved inside the sleeve 21. Second ventilation holes 2201 are evenly opened on the wall of the ventilation tube 22. Granular heat storage material 27 is filled between the sleeve 21 and the ventilation tube 22. The particle size of the heat storage material 27 is larger than the size of the second ventilation holes 2201.

[0035] The heat storage device in the adsorption-type mobile thermal storage vehicle utilizes a two-stage thermal storage unit, a thermal storage core 20 and a thermal storage module 3. The thermal storage core 20 is the smallest thermal storage unit, and multiple thermal storage cores 20 are arranged and combined to form a thermal storage module 3. The entire thermal storage device is composed of 2 to 8 thermal storage modules. The thermal storage cores 20 can be standardized and mass-produced according to production needs. The thermal storage modules 3 can be connected in series and parallel according to the heat usage of the factory and heat users. Thermal storage vehicles with different heat storage capacities and heating temperatures can be designed. Different numbers of thermal storage modules 3 can also be charged and discharged simultaneously according to the needs of heat users, thereby improving overall charging and discharging efficiency.

[0036] like Figure 4As shown, in this embodiment, the outer shell includes a square shell 7 with an open end and a sealing cover 8 that is detachably arranged at the opening of the shell 7, the air inlet pipe 9 is arranged in the middle of the sealing cover 8, and the exhaust pipe 18 is arranged in the middle of the shell bottom opposite to the sealing cover 8 on the shell 7.

[0037] As a further optimization, to facilitate the fastening of the heat storage core 20 within the heat storage module 3, a compression box 13 and a support box 16 are provided at both ends of the heat storage core 20 within the shell 7. The compression box 13 is located on one side of the opening of the shell 7. The shell 7 is fixed with a plurality of support blocks 17 for supporting the support box 16. The sealing cover 8 is provided with a compression mechanism for clamping the compression box 13. The compression box 13 and the support box 16 are both flat square boxes, and first air vents 14 for ventilation are evenly opened on both sides. A windshield 15 corresponding to the air inlet pipe 9 is provided in the middle of the outer side of the compression box 13. The provision of the compression box 13 and the support box 16 facilitates the fastening of the heat storage core 20 and the diversion of the gas entering the shell, ensuring that the gas flow rate within each heat storage core 20 is substantially the same, ensuring that the multiple heat storage cores 20 within the same shell have the same charging and discharging speed, and improving the charging and discharging efficiency. By providing the windshield 15 , the gas entering the housing through the air inlet pipe 9 is dispersed, preventing the gas from passing directly out through the heat storage cores 20 located in the middle of the housing.

[0038] The clamping mechanism includes a threaded hole 801 provided at the corner of the sealing cover 8 and a screw 10 screwed into the threaded hole 801. The outer end of the screw is provided with a handle 12, and the inner end passes through the through hole 1401 provided on the clamping box 13 and is connected to a pressure plate 11 whose size is larger than the through hole 1401. After the sealing cover 8 is fastened to the shell 7 by the first bolt 19, the clamping box 13 can be pressed onto the heat storage core 20 by rotating the handle 12. The pressure plate 11 is located inside the clamping box 13, connecting the clamping box 13 and the sealing cover 8 as a whole, which facilitates the installation of the clamping box 13 and the sealing cover 8. As a further optimization, the pressure plate 11 and the screw 10 are relatively rotatable and clamped together.

[0039] The structure of the heat storage core 20 has two forms, such as Figure 6 As shown in FIG. 1 , as an embodiment, an annular first cover plate 23 is detachably mounted on both ends of the sleeve 21 of the heat storage core 20 via a second bolt 26. A first vent hole 24 is provided in the middle of the first cover plate 23. An annular fixing ring 25 is fixed in the middle of the inner side of the first cover plate 23 at the position of the first vent hole 24. The outer diameter of the fixing ring 25 matches the inner diameter of the vent pipe 22. The fixing ring 25 can limit the vent pipe 22 to the center of the sleeve 21. Figure 7As shown, as another embodiment, an annular first cover plate 23 and a second cover plate 28 are detachably mounted at both ends of the sleeve 21 of the heat storage core 20. A first vent hole 24 is provided in the middle of the first cover plate 23. An annular fixing ring 25 is fixedly mounted in the middle of the inner side of the first cover plate 23 at the position of the first vent hole 24. The outer diameter of the fixing ring 25 matches the inner diameter of the vent tube 22. A plurality of second vent holes 29 are evenly arranged circumferentially on the second cover plate 28, communicating with the cavity between the sleeve 21 and the vent tube 22. A cylindrical fixing block 30 is fixedly mounted in the middle of the inner side of the second cover plate 28, matching the inner diameter of the vent tube 22. The fixing block 30 can limit the vent tube 22 to the center of the sleeve 21. Air is taken in through the first vent hole 24 in the middle of the first cover plate 23, and exhausted through the second vent holes 29 on the second cover plate 28.

[0040] like Figure 5 and Figure 8 As shown, as an embodiment, the ventilation pipe 22 is cylindrical, the sleeve 21 is cylindrical or cubic, and the heat storage cores 20 are arranged in a rectangular array in the shell.

[0041] like Figure 9 As shown, as another embodiment, the ventilation pipe 22 is cylindrical, the sleeve 21 is hexagonal, and the heat storage cores 20 are interlaced and embedded in the shell.

[0042] In this embodiment, the shell is made of high-temperature resistant heat-insulating hard engineering plastic, or a high-temperature resistant heat-insulating layer is fixed on the inner wall of the shell.

[0043] The intake pipe 9 and the intake main pipe 4, and the exhaust pipe 18 and the exhaust main pipe 5 are connected by quick-release connectors. Control valves are provided on the intake main pipe 4 and the exhaust main pipe 5, as well as on the intake pipe 9 and the exhaust pipe 18. The control valves are mechanical valves or solenoid valves. The intake main pipe 4 and the exhaust main pipe 5 both pass through the car 2.

[0044] The heat storage material 27 adopts adsorption type heat storage material, such as aluminum silicate (silicate molecular sieve, modified aluminum silicate material, etc.), activated carbon, silica gel heat storage material, etc. The heat storage material 27 is selected according to application requirements to make full use of the large amount of waste heat directly discharged in industry.

[0045] Specific working process:

[0046] Heat storage process:

[0047] After the high-temperature, low-humidity air is introduced into the main intake pipe 4 of the vehicle compartment 2, the hot air is distributed to each thermal storage module 3 and then to each thermal storage core 20. As the hot air flows through the ventilation pipe 22, the water vapor partial pressure difference drives the moisture in the thermal storage material 27 through the second air vents 2201 and into the air flowing through the ventilation pipe 22, where it is desorbed.

[0048] Exothermic process:

[0049] During heat release, low-temperature and high-humidity air is introduced into the intake main pipe 4, and the water vapor in the air diffuses into the heat storage material 27 and is adsorbed, while releasing heat to heat the air inside the ventilation pipe 22 and outside the sleeve 21. After the air passes through the ventilation pipe 22, the humidity decreases and the temperature increases, and then it is connected to the user-side heat exchange system through the exhaust main pipe 5 to complete the heat exchange.

[0050] Since the heat storage principle of the mobile heat storage vehicle is to utilize the adsorption and desorption of moisture, after the charging (desorption) is completed, as long as the inlet and outlet valves of the heat storage module 3 are closed and no humid air enters, the heat storage material 27 will not come into contact with moisture and will not release any heat. The mobile heat storage vehicle made in this way can realize long-distance and long-time heat transportation, and the heat loss is very low. In theory, it can achieve long-term zero heat loss heat storage, and there will be no heat loss during the transportation process. When heat is needed, only humid air needs to be introduced. When moisture is adsorbed by the heat storage material 27, heat is released. The air is dehumidified and heated at the same time. Then the high-temperature hot dry air can be connected to the heat exchanger to release heat to the water circulation of the building to meet the building's heat demand. The mobile heat storage vehicle can transport heat to users at a lower transportation cost. Under the condition of the same market value per unit heat, the economic transportation radius of the factory's waste heat can be greatly increased.

[0051] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An adsorption-type mobile thermal storage vehicle, characterized by: The heat storage device includes a heat storage device arranged in a vehicle compartment, the heat storage device includes a plurality of heat storage modules, the heat storage modules include a housing and a plurality of heat storage cores arranged in parallel in the housing, an air intake pipe and an exhaust pipe are respectively provided on the housing at positions corresponding to the two ends of the heat storage cores, the plurality of air intake pipes are respectively connected to the air intake main pipe, and the plurality of exhaust pipes are respectively connected to the exhaust main pipe; The heat storage core includes a sleeve located on the outside and a ventilation pipe located in the middle of the sleeve, and second ventilation holes are evenly opened on the wall of the ventilation pipe. Granular heat storage material is filled between the sleeve and the ventilation pipe, and the particle size of the heat storage material is larger than the size of the second ventilation holes.

2. The adsorption-type mobile thermal storage vehicle according to claim 1, characterized in that: The shell includes a square shell with one end open and a sealing cover detachably arranged at the shell opening. The air inlet pipe is arranged in the middle of the sealing cover, and the exhaust pipe is arranged in the middle of the shell bottom opposite to the sealing cover.

3. The adsorption-type mobile thermal storage vehicle according to claim 2, characterized in that: A compression box and a support box are respectively provided at both ends of the heat storage core in the shell, wherein the compression box is located on one side of the shell opening, a support block for supporting the support box is fixed on the shell, and a compression mechanism for clamping the compression box is provided on the sealing cover; the compression box and the support box are both flat square boxes, and first air holes for ventilation are evenly opened on both sides, and a wind shield corresponding to the air inlet pipe is provided in the middle of the outer side of the compression box.

4. The adsorption-type mobile thermal storage vehicle according to claim 3, characterized in that: The clamping mechanism includes a threaded hole opened at the corner of the sealing cover and a screw threaded in the threaded hole. The outer end of the screw is provided with a handle, and the inner end passes through the through hole opened on the clamping box and is connected to the pressing plate.

5. The adsorption-type mobile thermal storage vehicle according to claim 1, characterized in that: An annular first cover plate is detachably mounted at both ends of the sleeve of the heat storage core, a first vent hole is provided in the middle of the first cover plate, an annular fixing ring is fixed at the position of the first vent hole in the middle of the inner side of the first cover plate, and the outer diameter of the fixing ring is adapted to the inner diameter of the vent pipe.

6. The adsorption-type mobile thermal storage vehicle according to claim 1, characterized in that: Both ends of the sleeve of the heat storage core are detachably mounted with an annular first cover plate and a second cover plate, wherein a first vent hole is provided in the middle of the first cover plate, and an annular fixing ring is fixedly provided at the position of the first vent hole in the middle of the inner side of the first cover plate, and the outer diameter of the fixing ring is adapted to the inner diameter of the vent pipe; a plurality of second vent holes connected to the cavity between the sleeve and the vent pipe are evenly arranged on the circumference of the second cover plate, and a fixing block adapted to the inner diameter of the vent pipe is fixedly provided in the middle of the inner side of the second cover plate.

7. The adsorption-type mobile thermal storage vehicle according to claim 1, characterized in that: The ventilation pipe is cylindrical, the sleeve is cylindrical or cubic, and the heat storage cores are arranged in a rectangular array in the shell.

8. The adsorption-type mobile thermal storage vehicle according to claim 1, characterized in that: The ventilation pipe is cylindrical, the sleeve is hexagonal, and the heat storage cores are interlaced and embedded in the outer shell.

9. The adsorption-type mobile thermal storage vehicle according to any one of claims 1 to 8, characterized in that: The intake pipe and the intake main pipe, and the exhaust pipe and the exhaust main pipe are connected by quick-release connectors. Control valves are provided on the intake main pipe and the exhaust main pipe, and on the intake pipe and the exhaust pipe. The intake main pipe and the exhaust main pipe both pass through the car body.

10. The adsorption-type mobile thermal storage vehicle according to claim 1, characterized in that: The shell is made of heat-insulating hard engineering plastics, or a high-temperature resistant heat-insulating layer is fixed on the inner wall of the shell; the heat storage material is an adsorption-type heat storage material.

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