31results about How to "Improve heat storage efficiency" patented technology

The large sand heat storage device comprises a sand storage container, a heat storage sand layer, a heating system and a heat conduction system, wherein the sand storage container is filled with the heat storage sand layer, the heating system is used for heating the heat storage sand layer, and the heat conduction system is used for outputting heat in the heat storage sand layer. The heating system comprises a heat dissipation pipe set arranged in the sand storage container and an electric heating rod stretching into the heat dissipation pipe set. The heat conduction system comprises a heat collection pipe set arranged in the sand storage container and a guide-out unit driving heat conduction media in the heat collection pipe set to flow. The sand storage container is a rectangular box body, and the inner space of the sand storage container is filled with the heat storage sand layer; the radiating pipe group is vertically connected to a main pipe on the inner side of the top wall of the sand storage container and a plurality of branch pipes radially arranged at the lower end of the main pipe, the internal space of the branch pipes is communicated with the internal space of the main pipe, and the internal space of the main pipe is communicated with the outside of the sand storage container. The sand heat storage device is low in use cost and high in heat storage and heat transfer efficiency.

The invention relates to the technical field of compressed air energy storage, and discloses a cross-seasonal heat storage compressed air heat and power cogeneration system and an operation method thereof. The compressed air heat and power cogeneration system comprises a compression subsystem and an expansion subsystem. A compression assembly in the compression subsystem generates compressed air, the compressed air is cooled through a heat exchange assembly, a cross-season heat storage device exchanges heat with the compressed air in a heat exchanger to extract and store heat energy, and the cooled compressed air is stored in a compressed air storage device. The expansion subsystem firstly heats compressed air of the compressed air storage device through a heat exchanger and then conveys the compressed air to an expansion assembly for power generation. In the non-heating season, the cross-seasonal heat storage device can store heat energy and supply the heat energy to the heat supply assembly in the heating season, cross-seasonal utilization of the heat energy is achieved, the heat energy utilization efficiency is high, the heat energy is continuously generated and consumed when the system operates, and the cross-seasonal heat storage device, the compression assembly and the heat supply assembly share the heat exchanger; the occupied area of equipment and the cost are reduced.

The utility model relates to the technical field of building materials, in particular to a phase change heat storage floor which comprises a floor layer, a heat insulation layer, a phase change heat storage layer packaged in a heat preservation mode and a heating layer packaged in an insulation mode. The floor layer, the phase change heat storage layer and the heat insulation layer are sequentially stacked from top to bottom. The heating layer is arranged in the center of the interior of the phase change heat storage layer, and the electric control heating end of the heating layer is led out of the side face of the phase change heat storage layer; the phase change heat storage floor is high in heat storage efficiency and safety, modular installation is facilitated, the installation efficiency is improved, and the maintenance cost is reduced.

The invention discloses a thermocline type horizontal multi-tank water heat storage system which comprises a horizontal heat storage box body, an upper water distributor, a lower water distributor and a flow guide plate group are designed in the horizontal heat storage box body, two flow guide channels are designed in the horizontal heat storage box body to divide the horizontal heat storage box body into three water storage tanks, and the water storage tanks are communicated in series. And the water outlets of the upper water distributor and the lower water distributor respectively face the upper inner wall and the lower inner wall of the horizontal heat storage box body. The device is scientific and reasonable in design, space can be saved, water is layered for multiple times in the heat storage device, and therefore the heat storage effect is improved, the heat energy conversion efficiency is improved, and the construction and maintenance cost of the device can be reduced.

The present invention discloses a solar coupling system for recovering waste heat of waste water and waste gas, comprising a solar photovoltaic system, a waste heat recovery unit and an air source heat pump unit, wherein the solar photovoltaic system comprises a water storage unit and an electricity storage unit; the waste heat recovery unit comprises a waste water recovery unit, a first waste gas conversion unit, a waste gas recovery unit and a second waste gas conversion unit; wherein: the water storage unit sends hot water to the waste water recovery unit through a hot water supply tank; the waste water recovery unit sends treated water to the hot water supply tank by using the waste heat of waste water through the first waste gas conversion unit; the waste gas recovery unit sends the treated water that has been energy exchanged by using the waste heat of waste gas to a water reservoir through the second waste gas conversion unit and the first waste gas conversion unit in turn; the air source heat pump unit is connected to the hot water supply tank through a valve in turn; the present invention realizes a system that couples energy supply with waste gas, waste water waste heat recovery unit, solar photovoltaic system and air source heat pump unit, makes full use of recyclable and reusable energy and renewable energy, and greatly improves energy utilization efficiency.

The invention discloses a system for coupling ion solution heat storage circulation and high-temperature heat pump circulation and an adjusting method thereof.In a desorption tower of the system, a waste heat medium is introduced to desorb a CO2-amino functional ion solution, separated CO2 is stored in a first storage tank, the regenerated amino functional ion solution is conveyed to an absorption tower through a third storage tank, and the absorption tower is used for absorbing the CO2-amino functional ion solution; cO2 is absorbed in the absorption tower and heat is released, and a formed CO2-amino functional ion solution is stored in a second storage tank and is sent to a desorption tower for desorption, so that efficient storage and utilization of waste heat are realized; in the high-temperature heat pump cycle, the CO2 non-azeotropic mixed working medium is subjected to selective absorption of components through the absorption tower, and the concentration of the components of the mixed working medium is flexibly regulated and controlled by adjusting the pressure of the absorption tower and the CO2 flow, so that the performance and efficiency of the system under different working conditions are optimized.

A fluctuating steam thermal storage and heat exchange device and method are disclosed. The device includes a tank, a heat exchanger, and a spraying device. The spraying device is located in the upper part of the tank, and the heat exchanger is located in the lower part of the tank. The bottom of the tank is connected to the spraying device via an upper pipe section through an upper circulation inlet, and to the middle of the tank via a lower pipe section through a lower circulation inlet. A circulating water pump is installed on the lifting pipe. A steam inlet is provided on the tank between the spraying device and the lower circulation inlet. This invention also provides a thermal storage and heat exchange method based on this fluctuating steam thermal storage and heat exchange device. This invention can solve the problem of recovering and utilizing intermittent polluted steam, and produces clean, high-temperature secondary water that can be used for power generation or winter heating.

The invention discloses a phase-change material household cold and warm temperature control system based on virtual power plant power transaction, and the system comprises a heat pump air conditioning module which is communicated with a phase-change material energy storage module through a heat exchange fluid conveying module; the heat exchange fluid conveying module is provided with a heat exchanger and a heat exchange circulating pipeline, the heat exchange circulating pipeline sequentially passes through the heat exchanger and the phase change material energy storage module, the intelligent control module comprises a communication interface and a microprocessor, and the communication interface is connected into the microprocessor. The microprocessor is used for receiving time-of-use electricity price information of at least 24 hours in the future sent by the virtual power plant platform through the communication interface; through interaction between the intelligent control module and the virtual power plant platform, the electricity price and excitation signals can be real-time, the energy storage / release time sequence can be optimized, the response speed of electricity price adjustment is improved, and the use energy consumption of the heat pump air conditioner module is effectively reduced; and through a closed-loop feedback mechanism, aggregation scheduling of the virtual power plant can be promoted, and the flexibility of the power grid is improved.

The utility model belongs to the technical field of heat mass energy storage, and discloses heat mass storage and release integrated energy storage equipment, which comprises a heat storage and release integrated tank, a heating U-shaped calandria and a heat exchange U-shaped calandria are alternately arranged in the heat storage and release integrated tank in a staggered manner, and the heating U-shaped calandria is used for heating heat mass fused salt or heat conduction oil stored in the tank. The utility model has the following beneficial effects: the steam turbine and the generator are integrated by adopting modularization, molten salt and heat conduction oil do not need to be pumped out for heat exchange and power generation, heat exchange is directly completed in the equipment, and the heat energy loss is reduced. And parts are reduced, and faults are reduced. And a plurality of modules of the storage and generation integrated tank can be combined according to the energy storage capacity. The method is not affected by sites and is low in overall construction investment cost.

The invention discloses a gradient heat conduction wood fiber composite wallboard and a preparation method thereof, and belongs to the technical field of composite wallboard preparation.According to the gradient heat conduction wood fiber composite wallboard and the preparation method thereof, wood fibers and reinforced fibers are smashed and mixed and then poured into an adhesive, the wood fibers and the reinforced fibers are bonded through the adhesive, and the gradient heat conduction wood fiber composite wallboard is obtained; the preparation method comprises the following steps: mixing and adhering wood fibers and reinforced fibers, pouring the mixed and adhered wood fibers and reinforced fibers into a mold, pressurizing and drying to prepare a base material layer of the gradient heat-conducting wood fiber composite wallboard, so that the base material layer has better crack resistance and mechanical strength, and mixing a paraffin-based phase change material and expanded graphite according to a certain proportion to prepare the gradient heat-conducting wood fiber composite wallboard. The paraffin-based phase-change material fully utilizes the embedded space structure of the expanded graphite with large and small particle sizes, so that the thermal diffusion coefficient after the paraffin-based phase-change material and the expanded graphite are mixed is improved, the heat conduction enhancement layer has the best performance in the aspects of heat transfer efficiency, heat stability, heat storage efficiency and the like, and the heat conduction efficiency of the wallboard is improved.

The application discloses a free telescopic and detachable phase change heat storage and exchange device, which comprises a shell, one end of the shell is a fluid inlet, the other end is a fluid outlet, a phase change module is arranged in the shell, the phase change module comprises a shell layer phase change module and an internal phase change module of the shell, the shell layer phase change module is arranged close to the inner wall of the shell, and the internal phase change module of the shell is arranged in the cavity of the shell layer phase change module. The device has the advantages of the tube-shell type and the plate type phase change heat exchanger, the heat storage and release rate is obviously higher than that of the existing plate type and tube-shell type phase change heat storage and exchange devices, and the problems of thermal expansion and cold contraction of the PCM module are effectively solved. The device has the advantages of high heat storage density, fast heat storage and release rate, compact structure, less heat loss, no expansion and cracking problems, no melting "dead zone", easy disassembly, installation and cleaning and the like. Compared with the prior art, the device has outstanding substantial characteristics and significant progress.

The present invention relates to a heat storage flame retardant polyester fiber based on modified cesium tungsten bronze and a preparation method thereof, belonging to the technical field of functional fibers. The preparation method of the present invention comprises the following steps: S1, dropping an aminosilane coupling agent solution into a nano cesium tungsten bronze solution for stirring reaction to obtain modified cesium tungsten bronze; phosphorus trichloride, pentaerythritol and β-phenylethanol react in a first solvent to obtain a chlorine-containing cyclic phosphate flame retardant; S2, dispersing the chlorine-containing cyclic phosphate flame retardant in a second solvent, adding modified cesium tungsten bronze to react, and obtaining multifunctional cesium tungsten bronze; S3, granulating the multifunctional cesium tungsten bronze and polyester powder to obtain a multifunctional polyester masterbatch; S4, spinning the multifunctional polyester masterbatch and polyester chips to obtain a heat storage flame retardant polyester fiber based on modified cesium tungsten bronze, which has good heat storage performance and flame retardant performance, and less mechanical performance damage.

The present invention discloses a pressurized valley electricity heat storage device, which belongs to the technical field of valley electricity heat storage devices. It includes a heat storage tank body, a heat storage and release electric valve, a water mixer, a water mixing electric valve, a heating circulation pump, an electric vacuum hot water boiler and a heating electric valve. The top of the heat storage tank body is connected to a first connecting pipe, the bottom of the heat storage tank body is connected to a second connecting pipe, and a plurality of circular orifice plates are arranged in the heat storage tank body. By arranging a plurality of circular orifice plates at specific positions according to the height-to-diameter ratio of the heat storage tank body, the heat storage tank body is effectively reinforced to ensure the safety of the heat storage tank body structure; the openings can prevent turbulence of hot water in the heat storage tank body, forming a vertical laminar flow of high-temperature hot water from bottom to top during heat release and a vertical laminar flow of high-temperature hot water from top to bottom during heat storage, thereby ensuring temperature stratification and improving heat storage efficiency.

The application discloses a kind of RTO device assembly construction methods, and the risk of cross operation is reduced by specification process.Its core steps include: first, bottom air pipe, steel support and platform installation are carried out;Then hoist lifting valve, gas collecting chamber, heat storage chamber in turn;In heat storage chamber, fill heat storage ceramic according to the structure of "bottom ceramic square saddle ring, multilayer MLM honeycomb ceramic module, top square saddle ring";Hoist combustion chamber, burner again;Finally, install fan, air pipe and accessory structure.The air pipe welding adopts inside and outside mouthpiece fixed weld, effectively control gap and deformation.The method makes construction more standardized and efficient, reduces the risk of cross operation, improves the heat storage efficiency and is suitable for large RTO project.

The utility model discloses a supercritical heat storage top peak heat supply unit, including steam turbine system, steam heat storage system, heat network system and power grid system, steam turbine system includes the steam turbine and generator of cooperation, and steam heat storage system includes steam water heat exchanger and hot water heat storage jar, and heat network system includes first station, primary network heat supply pipe and heat user, and primary network heat supply pipe includes primary network backwater pipe and primary network water supply pipe, steam turbine passes through first station and connects primary network heat supply pipe, and primary network heat supply pipe is connected with heat user, and steam turbine passes through steam water heat exchanger and connects hot water heat storage jar, and hot water heat storage jar connects primary network heat supply pipe, sets up expansion water tank and water replenishing pump, and the water inlet of expansion water tank is connected with primary network backwater pipe, and the water outlet is connected with water replenishing pump inlet, and water replenishing pump outlet is connected with primary network water pipe, the utility model discloses the adjusting effect of expansion water tank can more effectively absorb and release heat, thereby improves the efficiency of heat storage, and reduces the operation pressure fluctuation of unit.

The invention relates to a heating terminal device, and belongs to the technical field of heating devices. According to the technical scheme, the assembly type double-row-pipe phase change heat storage heating terminal device comprises row pipes arranged in the vertical direction of a wall face, the row pipes are wrapped by heat preservation materials, the number of the row pipes is two, and the row pipes are spirally arranged side by side in a circuitous mode. The phase change heat storage material, the insulating layer, the heat preservation coating, the heat preservation shell, the outer wall and the outer wall heat preservation layer are sequentially arranged on the side, close to the outdoor space, of the heat preservation material from inside to outside. According to the heating terminal device, heat is provided for the indoor space in the daytime, meanwhile, the phase change heat storage material can store the heat, and the stored heat is released when the temperature is low at night, so that the indoor temperature is increased, the energy consumption requirement in building operation is met, and meanwhile the purposes of energy conservation and emission reduction can be achieved.

The invention belongs to the technical field of energy recovery, and discloses a compressed air energy storage heat recovery system and method.The compressed air energy storage heat recovery system comprises a heat storage tank, an expansion assembly, a first heat supply valve, a second heat supply valve, a heat exchange assembly, a heat release mechanism and a heat storage mechanism; the heat exchange assembly is connected to the other ends of the first heat supply valve and the second heat supply valve, the input end of the heat release assembly is connected to the hot side of the heat storage tank, the output end of the heat release assembly is connected to one end of the heat release valve, the other end of the heat release valve is connected to the cold side of the heat storage tank, and the input end of the heat storage assembly is connected to one end of the heat storage valve. The output end of the heat storage assembly is connected to the hot side of the heat storage tank, the other end of the heat storage valve is connected to the cold side of the heat storage tank, energy storage and heat supply of the compressed air energy storage heat recovery system are achieved, the comprehensive utilization rate of energy and the heat storage efficiency are improved, and the feasibility of thermocline heat storage of the heat storage tank is enhanced. It is guaranteed that only cold water exists in the heat storage tank before next energy charging and discharging circulation.

The present invention discloses a heat storage device for a tower-type solar thermal power station, comprising: a main body, a housing cavity provided in the main body; a solid heat storage component provided in the housing cavity; a fluid inlet provided in the main body for introducing a heat exchange fluid into the housing cavity; a heat supply component provided in the housing cavity, and a heat supply medium provided in the heat supply component; a fluid outlet provided in the main body for the outflow of the heat exchange fluid; wherein the heat exchange fluid in the housing cavity is in contact with the heat supply component and the solid heat storage component, and the heat exchange fluid absorbs and stores the heat of the heat supply medium; the solid heat storage component absorbs and stores the heat of the heat supply medium through conduction of the heat exchange fluid, or the heat exchange fluid absorbs and stores the heat released by the solid heat storage component. The heat storage structure of the device is stable and reliable, and the cost is low.

The utility model discloses a multi-heat-exchange-mode electric water heater which comprises a heat storage area, a backflow area and a heat exchange area, a heat storage module is arranged in the heat storage area, the backflow area is communicated with the heat storage area, and a heating module capable of being controlled to be opened and closed is arranged in the backflow area. The heat exchange area is communicated with the heat storage area and the backflow area, and a heat exchange module is arranged in the heat exchange area. The water heater further comprises a water inlet pipe and a water outlet pipe, the water inlet pipe extends into the heat exchange area, communicates with the heat exchange module and conveys water to be used into the heat exchange module, and the water outlet pipe extends into the heat exchange area, communicates with the heat exchange module and outputs the water to be used in the heat exchange module. The heat exchange medium can circulate in any two of the heat storage area, the backflow area and the heat exchange area or circulate in the three areas at the same time. According to the multi-heat-exchange-mode electric water heater, the water using time is prolonged, and water can be used while heat is stored.

The invention relates to the technical field of cross-seasonal heat storage / heat supply design and construction, and discloses a hollow floating heat preservation top cover for cross-seasonal water body heat storage and an application method.The hollow floating heat preservation top cover comprises a plurality of heat preservation modules which are connected and fixed through flexible connecting mechanisms; each flexible connecting mechanism comprises a reserved hole formed in the side wall of the corresponding heat preservation module, the cross section of each heat preservation module is rectangular, the heat preservation top cover is composed of the multiple independent heat preservation modules, each module comprises the waterproof layer, the heat preservation layer and the air space layer, and due to the design, transportation, storage and on-site assembly are facilitated; from a single module to the whole top cover, from factory manufacturing and transportation to on-site construction and installation, convenience is achieved, use of manpower resources is reduced, installation can be fast, the construction progress is accelerated, and the heat preservation module has the advantages of being high in practicability and efficient in heat preservation.

The invention discloses a heat storage device coupled with metal hydride and a photo-thermal power generation system, and relates to the technical field of energy storage. The heat storage device coupled with the metal hydride comprises a high-temperature fused salt storage tank and a hydrogen storage tank, the high-temperature fused salt storage tank is provided with a high-temperature fused salt input port and a high-temperature fused salt output port, a metal hydride storage tank is arranged in the high-temperature fused salt storage tank, the metal hydride storage tank is filled with the metal hydride, and the metal hydride storage tank is communicated with the hydrogen storage tank. The high-temperature fused salt heats the metal hydride in the metal hydride storage tank, so that the metal hydride is heated to release hydrogen and the hydrogen is stored in the hydrogen storage tank. And after the temperature of the fused salt is reduced, hydrogen in the hydrogen storage tank is released to the metal hydride storage tank, so that the dehydrogenation-state material absorbs the hydrogen and releases heat to heat the fused salt in the high-temperature fused salt storage tank, and heat storage and heat release are achieved. By combining the high heat storage density of the metal hydride and the good fluidity of the fused salt, the heat transfer performance and the heat storage efficiency of the heat storage device are improved.

The invention discloses a thermal power plant solid waste roasting heat storage ceramsite production device and a heat storage method thereof, and belongs to the technical field of heat storage, the thermal power plant solid waste roasting heat storage ceramsite production device comprises a raw material mixing stirrer, the raw material mixing stirrer is connected with an aging warehouse through a belt conveyor, and the raw material mixing stirrer is used for uniformly mixing solid waste in a thermal power plant with sludge or clay; the ceramsite production raw materials are conveyed to an aging warehouse through a belt conveyor to be subjected to aging treatment; the outlet end of the aging warehouse is connected with the rotary kiln furnace after sequentially passing through the hopper, the granulator and the shaping machine, and the output end of the rotary kiln furnace is connected with the heat storage and heat preservation chamber and used for carrying out heat storage and energy storage on the formed hot-state ceramsite products. The method has the advantages that resources can be recycled, negative effects of wastes on the environment are reduced, and meanwhile, positive contributions are made to energy conservation, emission reduction, cost reduction and environment protection through efficient production and energy efficiency improvement.

This invention relates to a horizontally cascaded phase change heat storage device, belonging to the field of phase change energy storage and enhanced heat transfer. It comprises an outer shell, a first inner cavity, a second inner cavity, an inner tube, a heat transfer fluid, a first phase change material, separating ribs, and a second phase change material. The invention utilizes separating ribs located at the lower part of the inner tube to divide the annular space between the outer shell and the inner tube into upper and lower chambers. The volume of the lower chamber increases from the inlet to the outlet. The first phase change material filled in the upper part of the first cavity has a higher melting point, while the phase change material filled in the lower part has a lower melting point. The combination of the separating ribs and different phase change materials reduces the heat storage time and improves the heat storage efficiency. Compared with traditional phase change heat exchangers, the heat storage time of this invention can be reduced by approximately 70%.

The utility model discloses a flue type waste heat recycling device, which belongs to the field of waste heat recovery and comprises a flue connecting pipe, a switch component arranged at the right end of the flue connecting pipe, a dust backflow prevention component arranged at the right end of the switch component, and a filter component arranged at the right end of the dust backflow prevention component. According to the technical scheme, the heat storage device is characterized in that reverse protruding blocks which are distributed in a staggered mode are arranged in a conveying pipe, dust backflow is effectively prevented, the situation that dust flows back to block a flue connecting pipe is avoided, a large-hole filtering plate and a small-hole filtering plate are sequentially arranged in the filtering assembly in a matched mode, and the heat storage assemblies are arranged at the outer end of the filtering assembly in a matched mode. The waste heat is filtered in a classified mode; meanwhile, the contact area with the waste heat is increased through spiral heat conduction pieces in the heat storage assembly, meanwhile, a circulation loop is formed through a backflow pipe, the waste heat circulates in the device, the heat storage assembly can be independently taken down to be used at other places, and waste heat recycling is effectively achieved.

The present invention belongs to the technical field of molten salt heat storage in thermal power plants, and specifically discloses a reheat steam staged regulation power station deep peak regulation heat storage and release system and method. Based on the use of reheat steam to heat low-temperature molten salt, the present invention adds electric heating, extracts air from the reheat steam to exchange heat with the molten salt, and adopts electric heating and molten salt heat exchange staged to improve the stability of the system, the flexibility of heat storage and the efficiency of heat storage. The present invention is suitable for the flexible transformation of thermal power plants.

The utility model belongs to the technical field of VOCs (volatile organic compounds) treatment, and provides a heat storage incinerator inlet and outlet airflow uniform distribution device which comprises a folded plate. And the folded plate is fixed in the furnace body, covers the upper part of the expanding section cavity, is positioned below the regular heat accumulator, and is formed by sequentially connecting at least two sieve plates. According to the device, the perforated folded plate is arranged in the limited space of the RTO inlet, gas is redistributed through the folded plate, gas flow can be promoted to be uniformly distributed, sintering ash can fall down through the holes in the folded plate, purging is facilitated, and blockage is prevented. According to the device, factors such as space saving, flow field uniform distribution, resistance reduction, energy conservation and consumption reduction, convenience in maintenance, convenience in dust collection and the like are synchronously considered, and a good flow equalizing effect can be achieved through reasonable trepanning shapes, trepanning distances and trepanning sizes.

The invention discloses a heat storage adjustable phase change device which comprises at least one box body, a high-temperature flow guide layer, a heat exchange layer and a low-temperature flow guide layer are arranged in the box body from top to bottom, and a first flow-equalizing water distributor and a second flow-equalizing water distributor are arranged between every two layers and are communicated through the first flow-equalizing water distributor and the second flow-equalizing water distributor; a heat storage water inlet and a heat release water outlet are formed in the two sides of the high-temperature flow guide layer, and a heat storage water outlet and a heat release water inlet are formed in the two sides of the low-temperature flow guide layer. The heat storage water inlet, the heat storage water outlet, the heat release water inlet and the heat release water outlet among the combined box bodies are respectively communicated through a first pipeline, a second pipeline, a third pipeline and a fourth pipeline, and the quantity of the box bodies for storing heat is controlled by an electromagnetic valve; and the phase change material is arranged in the heat exchange layer. Through temperature stratification and the design of the positions of the water inlet and the water outlet, the heat exchange efficiency of a water body is high, heat energy loss is small, meanwhile, the size and the using amount of the phase-change material heat storage array can be changed according to requirements, and personalized requirements are met.

The utility model belongs to the technical field of heating, and particularly discloses a floor heating heat supply energy storage heat cabinet which comprises a cabinet body, a control cabinet arranged on one side of the cabinet body, an energy storage cavity formed in the cabinet body, a plurality of sets of S-shaped guide pipes arranged side by side in the energy storage cavity, and partition plates arranged between every two sets of S-shaped guide pipes. The energy storage cavity is axially divided into a plurality of cavities by the partition plates, and each cavity is filled with a phase change material; a liquid inlet pipe and a liquid outlet pipe are arranged in the control cabinet and connected with an external heat source pipeline, and the liquid inlet pipe and the liquid outlet pipe are further communicated with each set of snakelike guide pipes respectively and used for heating the phase change materials; a floor heating liquid inlet pipe and a floor heating liquid outlet pipe are arranged on the liquid outlet pipe and used for being connected with an external floor heating pipe. The snakelike guide pipe is arranged in the energy storage cavity, the snakelike guide pipe is connected with the liquid inlet pipe and the liquid outlet pipe respectively, an external heat source flows to an external pipeline sequentially through the liquid inlet pipe, the snakelike guide pipe and the liquid outlet pipe, working medium circulation is formed, and the heat storage efficiency is improved.

The invention relates to the technical field of solar heat utilization, in particular to a heat collection and storage integrated solar water heater which comprises a water heater body, a plurality of heat collection pipes, a storage box, a heat conduction box, a driving mechanism, an adjusting mechanism and a rotating plate. The storage box is installed at the rear end of the water heater body, the heat conduction box is installed on the outer side of the storage box, the driving mechanism is installed at the heat conduction box, the adjusting mechanism and the rotating plate are both installed in the storage box, and the heat conduction box controls the driving mechanism according to temperature changes of the outside and the heat collection pipe. The driving mechanism drives the rotating plate to rotate through the adjusting mechanism, circulation between the heat collecting pipe and the water storage tank is opened and closed along with heat, then water in the heat collecting pipe circulates when the outside heat is high, and heat in the water storage tank is blocked when the outside heat is low.

The present invention relates to a calcium-based electrochemical fixed bed heat storage system, which includes a water collector, a water distributor, a condenser, a condensate tank, a steam generator, an electrochemical heat storage module, a hot water storage water circulation pump, a cooling water circulation pump, a condensate pump, a water supply pump, a steam regulating valve, a return water regulating valve, a return water shut-off valve, a return water bypass valve, a return water switching valve, a return water pump front shut-off valve, a condensate pump front shut-off valve and a steam main pipe regulating valve. During the charging process, the heat storage module is heated to generate water vapor, and the generated water vapor enters the condensation system for cooling. The heat generated during the cooling process is supplied to users, and the cooling water is stored; during the energy release process, the system generates water vapor that enters the heat storage module for reaction, generates a large amount of heat, and the generated heat is absorbed by the system's water supply and return system for use by users.