280 results about "Water source heat pump" patented technology

The invention discloses a heat allocation system based on a heat pump. The heat allocation system comprises a water tank; a water source heat pump; an air source heat pump; a cooling tower; a cooling water circulation system; a hot water circulation system; a chilled water circulation system; an exhaust heat recovery system; wherein the water tank, the water source heat pump, the air source heat pump, the cooling tower, the cooling water circulation system, the hot water circulation system, the chilled water circulation system and the exhaust heat recovery system are connected with one another to realize heat allocation, especially heat allocation of a coating pretreatment electrophoresis production line of a vehicle body or parts forming the vehicle body; according to the system, heat generated when the heat pump / refrigerating unit produces chilled water and / or heat taken away in exhaust air can be recycled and used for heating the heat using tail end. Therefore, the heat which is wasted originally can be fully utilized, the energy consumption is reduced, and the utilization efficiency of energy is improved.

The invention relates to a constant-pressure heat compensation compressed air energy storage system relying on a pumped storage power station and an operation method of the constant-pressure heat compensation compressed air energy storage system. The invention discloses a constant-pressure heat compensation compressed air energy storage system relying on a pumped storage power station. The constant-pressure heat compensation compressed air energy storage system comprises a constant-pressure compressed air energy storage subsystem and a water source heat pump subsystem. The constant-pressure compressed air energy storage subsystem comprises a constant-pressure compressor, a first heat exchanger, a constant-pressure air storage chamber, a second heat exchanger and a constant-pressure expansion machine which are sequentially connected through pipelines; the constant-pressure gas storage chamber is connected with an upper reservoir of the pumped storage power station through a pressure balance pipeline; the water source heat pump subsystem comprises a heat storage tank, a second heat exchanger, a heat pump expansion machine, a cold storage tank and a heat pump compressor which are sequentially connected through pipelines; the cold storage tank is connected with a lower reservoir of the pumped storage power station through a heat exchange pipeline; the constant-pressure compressed air energy storage subsystem and the water source heat pump subsystem are connected through a second heat exchanger and achieve energy interaction.

The invention belongs to the technical field of water source heat pump units, and particularly relates to a self-checking method of a vortex type water source heat pump unit, which comprises the following steps: 1, controlling a bypass valve to open according to a set period and driving a sampling pump through a controller in a detection part on the water source heat pump unit, and introducing a water source sample into a sampling tank in the detection part from a main pipeline, and the controller is electrically connected with a built-in control module of the detection component through an RS485 bus so as to transmit instructions. According to the self-checking method of the vortex type water source heat pump unit, by arranging the self-checking method of the vortex type water source heat pump unit, water quality self-checking can be conducted on the water source heat pump unit automatically and regularly, the water quality is detected through a pH sensor, a turbidimeter, a conductivity meter and a metal ion detector, the weight is dynamically adjusted through water sources, a segmented normalization algorithm is adopted, and the self-checking accuracy of the vortex type water source heat pump unit is improved. And the misjudgment problem of adapting to all water sources according to a fixed standard is avoided.

The water source heat pump hot water air conditioning unit comprises a compressor, a three-way electromagnetic valve, a four-way reversing valve, an air conditioning heat exchanger, a water source heat exchanger, a hot water heat exchanger and a gas-liquid separator. An exhaust pipe of the compressor is connected with an input port of the three-way electromagnetic valve, a first output port of the three-way electromagnetic valve is connected with a first valve port of the four-way reversing valve, and a second valve port of the four-way reversing valve is connected with a first port of the water source heat exchanger. A third valve port of the four-way reversing valve is connected with an inlet of the gas-liquid separator, and an outlet of the gas-liquid separator is connected with an air suction pipe of the compressor; a fourth valve port of the four-way reversing valve is connected with a first port of the air conditioner heat exchanger; a second filter, a second expansion valve and a third filter are arranged on a pipeline for connecting a second port of the water source heat exchanger and a second port of the air conditioner heat exchanger; a second output port of the three-way electromagnetic valve is connected with a first port of the hot water heat exchanger. A second port of the hot water heat exchanger is connected with a second port of the water source heat exchanger through a first filter and a first expansion valve.

The invention relates to the technical field of water source heat pumps, particularly discloses a recharge pressure influence analysis method based on recharge test data of a water source heat pump, and is used for solving the problems that in the prior art, recharge capacity evaluation is single, parameter identification precision is low, and multi-working-condition changes cannot be dynamically responded. Comprising the following steps: collecting experimental data, identifying a stable section, inverting permeability parameters, analyzing unit parameters, evaluating recharge performance, constructing a dynamic prediction model, dynamically calculating a permeability coefficient and an influence radius by constructing a stable section identification mechanism, combining high-frequency automatic monitoring data and utilizing a segmented inversion method, and introducing a well structure correction factor to improve the calculation precision; through the recharge pressure influence analysis method integrating high-frequency monitoring, stable section recognition, dynamic parameter inversion and multi-factor prediction, the limitation of traditional single-variable static evaluation is broken through, and fine modeling and dynamic response analysis of the recharge capacity of the water source heat pump system under multiple working conditions are achieved.

The utility model discloses a mine water source heat pump three-zone rotating wheel dehumidifying and cooling system which comprises an air processing unit and a temperature adjusting unit, and the temperature adjusting unit is connected with the air processing unit to cool or heat air of the air processing unit. The air processing unit comprises a fresh air channel, a blowing air channel and a regeneration air channel, the inlet end of the blowing air channel is connected with the fresh air channel, the outlet end of the blowing air channel is connected with the inlet end of the regeneration air channel, and the outlet end of the regeneration air channel is connected with the fresh air channel to feed regeneration air into the fresh air channel. The air processing unit comprises the fresh air channel, the blowing air channel and the regeneration air channel, the blowing air channel heats and dehumidifies the air flow, the heated and dehumidified air flow serves as regeneration air to be fed into the regeneration air channel, and the regeneration air enters the fresh air channel to be cooled and dehumidified after passing through the regeneration air channel. The energy consumption of the system is reduced, and deep dehumidification of mine airflow is achieved.

The invention relates to the technical field of waste water heat recovery. The invention discloses a waste water heat recycling device, method and system for a public kitchen dish washing machine. Comprising a data collection module used for reading, collecting and storing related data of waste water waste heat recovery of a public kitchen dish-washing machine and operation of a water heating system; the control module is used for controlling the water tank to supplement water and controlling the indirect sewage source heat pump unit to start and stop; and the waste heat recycling and water heating module is used for recycling waste heat and storing and preparing hot water. Heat of waste water discharged from the dish-washing machine to the oil separation tank is extracted through heat exchange, tap water is heated through the indirect sewage source heat pump unit and supplied to the dish-washing machine, and electric energy consumed by heating the tap water when the dish-washing machine works is reduced. Through the combination of the data collection module and the control module, the system can recycle heat in wastewater in the oil separation tank as much as possible on the premise of ensuring that the water temperature in the oil separation tank is not too low and ensuring the drainage safety.

The invention relates to the technical field of energy conversion, and discloses a cascade energy utilization system, a scheduling control method and device, equipment and a medium. The system comprises a photovoltaic power generation module, an electric heater, a hot molten salt tank, a cold molten salt tank, a steam generator, a primary heat exchanger, a secondary heat exchanger, a first water source heat pump unit, a second water source heat pump unit, a plurality of valves and a control module, wherein the valves comprise a first valve, a second valve, a third valve, a fourth valve, a fifth valve, a sixth valve and a seventh valve. The system provided by the invention aims at an energy system of a sewage treatment plant, high photovoltaic abandoned light, low efficiency of heat pumps, waste heat waste and island operation pain points, depends on photovoltaic energy, fused salt heat storage, a two-stage heat exchanger, double heat pumps and a dynamic control framework, stores photovoltaic energy by utilizing a fused salt heat storage system, preheats sewage through the two-stage heat exchanger, improves COP of the heat pumps, and reduces the energy consumption of the heat pumps. Waste heat is fully utilized, and dependence on a power grid is reduced.

The invention relates to the technical field of data processing, in particular to a water source heat pump air conditioning system emission reduction data evaluation method and system, and the method comprises the steps of data acquisition and processing, data complementation, reference scene modeling and simulation, actual emission calculation, emission reduction calculation and analysis, full life cycle emission calculation and result output. According to a traditional full-life-cycle evaluation method, specific resource conditions, environment cost, policy intensity and other regional factors of a project location are ignored, so that an evaluation result is lack of regional guiding significance; according to the method, a regional influence weight adjustment model constructed based on a multi-layer perceptron neural network is introduced, differential parameters such as underground water recharge cost, pollution control cost, recovery industry level and carbon policy intensity of a project location are taken as input, and weight coefficients of all life cycle stages are dynamically calculated; the evaluation result can dynamically reflect where emission reduction is implemented, the value is higher, and a more accurate scientific basis is provided for differentiated decisions of different areas.

The invention discloses an intelligent heat supply energy-saving control method based on deep learning, particularly relates to the technical field of water source heat pump heat supply, and is used for solving the problems of sudden increase of invalid power consumption of a compressor and recessive attenuation of energy efficiency caused by a monitoring blind area of a water body temperature field in the prior art. The method comprises the following steps: acquiring upstream water environment parameters of a heat absorption port in real time, and generating a downstream dynamic temperature distribution state by adopting deep learning enhanced dynamic heat transfer coupling analysis; on the basis of thermal gradient vortex structure recognition and water body heat capacity supplement rate unbalance judgment, a local low-temperature area is accurately positioned; establishing an electric hydraulic frequency domain coupling relation between the heat pump operation frequency and the water body flow velocity pulsation spectrum, and quantifying the hydraulic resonance triggering probability; ineffective power consumption increment is evaluated in combination with the low-temperature region state parameters and the resonance probability; and finally, the driving frequency of the compressor is dynamically adjusted according to the condition that the invalid power consumption increment exceeds the threshold value, and the flow of the circulating pump is synchronously optimized, so that full-chain control from local low-temperature region identification to energy efficiency closed-loop optimization is realized.

The invention relates to the technical field of water source heat pumps, in particular to a water source heat pump pretreatment device for a sewage plant, which comprises a sewage guide cylinder, a filter screen, a garbage self-cleaning mechanism, a linkage mechanism and a limiting frame, the sewage guide cylinder for guiding sewage is of an L-shaped structure, and the filter screen is fixed in a vertical cavity of the sewage guide cylinder; and the garbage self-cleaning mechanism is arranged at the turning point of the sewage guide cylinder. According to the water source heat pump pretreatment device, two core defects of the water source heat pump pretreatment device are effectively overcome, firstly, the linkage mechanism driven by water flow impact drives the garbage self-cleaning mechanism to realize online cleaning of the filter screen, so that the filtering efficiency can be always maintained in an initial state; compared with the traditional fixed filter screen, the efficiency attenuation caused by impurity accumulation has obvious advantages; secondly, the requirement of manual shutdown for cleaning is avoided through the dynamic cleaning mechanism; meanwhile, compared with an electric backwashing scheme, the self-cleaning system completely depending on hydraulic driving is more energy-saving.

The invention provides a water source heat pump heat exchanger inner and outer wall surface temperature iterative calculation method and system, and belongs to the technical field of heat exchange measurement. According to the flow state type of the fluid in the pipe, a corresponding correlation formula is selected based on the basic data to calculate the convective heat transfer Noschert number in the pipe; according to the heat exchange type of the medium on the outer surface of the pipe, a corresponding correlation formula is selected based on the basic data to calculate the convective heat exchange Noschert number outside the pipe; respectively calculating convective heat transfer coefficients of the inner wall and the outer wall of the pipeline on the basis of the intra-pipe and extra-pipe Knuchert numbers; and iteratively calculating the temperature of the inner and outer walls of the pipeline by using the heat balance equation, and recalculating the physical property parameter and the convective heat transfer coefficient according to the updated temperature value until the calculation result of the temperature of the inner and outer walls meets a preset target value. Working conditions are subdivided according to the in-pipe flow state and the out-pipe heat exchange type, the Noschert number and the convective heat exchange coefficient are calculated respectively, wall surface temperature iteration solution is conducted through a heat balance equation, and accurate calculation of the temperature of the inner wall and the outer wall of the water source heat pump heat exchanger is achieved.

The invention relates to the technical field of industrial wastewater treatment and energy recovery, in particular to a cooperative waste heat recovery system and method for shale gas drilling and production wastewater MVR treatment. The system comprises an MVR multi-effect evaporation crystallizer and a biochemical device, the water source heat pump unit comprises an evaporator, a compressor, a condenser and a throttle valve which form a refrigerant circulation loop; a condensate water outlet of the condensate water preheater is communicated with an inlet of the evaporator through a condensate water branch; an outlet of the evaporator is communicated with an inlet of the biochemical device; and the wastewater preheating branch is connected with an outlet of a raw water tank for storing the pretreated wastewater, and is used for sequentially conveying the wastewater to pass through a condenser and a condensate water preheater, then discharging the wastewater and then conveying the wastewater to an inlet of the MVR multi-effect evaporation crystallizer. According to the preheating recovery method based on the system, the technical problems that waste of low-temperature waste heat is serious during MVR treatment of the shale gas drilling and production wastewater, the energy consumption of wastewater preheating is high, and the adaptability to a back-end process is poor are solved.

This utility model belongs to the field of HVAC technology and discloses an anti-clogging water source heat pump system with automatic unclogging function. It includes a water source heat pump unit and a water supply well. A water source pump is installed in the water supply well, and the water source pump is sequentially connected to a well water outlet pipe, a cyclone separator, a self-clogging multi-stage filter box, a water tank outlet pipe, and the water source heat pump unit. The outlet of the water source heat pump unit is connected to a well water reinjection pipe via a pipeline, and the well water reinjection pipe is connected to a return water well. The outlet of the water source heat pump unit is also connected to an end user via a terminal water supply pipe. The end user is connected to the inlet of the water source heat pump unit via a terminal return water pipe. A terminal circulating water pump is installed on the terminal return water pipe, and the terminal return water pipe is also connected to an external makeup water pipe. This system has an automatic water source cleaning function, which can effectively and promptly clean impurities on the water source side and reduce labor costs. Furthermore, maintaining a balanced water volume between the pumping well and the reinjection well ensures the dynamic balance of groundwater and the stability of system operation.

The invention relates to the technical field of water source heat pumps, and particularly discloses a water source heat pump device applied to a sewage plant, the water source heat pump device comprises a supporting bracket, the top of the supporting bracket is fixedly connected with a suspended matter cleaning device, one side of the suspended matter cleaning device is fixedly connected with a sewage treatment box body, and one side of the sewage treatment box body is provided with an access hole; the side, away from the access hole, of the sewage treatment box body is fixedly connected with a scum cleaning box body, the bottom of the scum cleaning box body communicates with a first valve body water inlet through a pipeline, and the part, located at the bottom of the scum cleaning box body, of one side of the sewage treatment box body communicates with a gas heating mechanism through a pipeline; according to the water source heat pump device applied to the sewage plant, waste heat in the sewage is recycled while the sewage is purified, meanwhile, hot air flows into a water body through the air heating mechanism, so that heat generated by the sewage is decomposed through thermophilic aerobic bacteria, and meanwhile the heat of the hot air flows can be efficiently recycled.

The utility model is applicable to the technical field of filtering devices, and provides automatic filtering equipment for a sewage source heat pump, which comprises a shell, a water outlet pipe transversely communicated with the outer surface of the shell, an upper cover arranged at the top of the shell, and a filter cartridge with an open top arranged in an inner cavity of the shell, a water inlet pipe penetrating through the cover plate and extending to the inner cavity of the filter cartridge is arranged on the upper cover in a penetrating manner, a threaded lead screw penetrating through the cover plate and extending to the bottom of the inner cavity of the filter cartridge is rotatably and vertically arranged at the bottom of the upper cover, a threaded sleeve is in threaded connection with the surface of the threaded lead screw, a rotating sleeve is rotatably arranged on the surface of the threaded sleeve in a sleeving manner, and a cleaning assembly is arranged on the surface of the rotating sleeve. According to the automatic filtering equipment for the sewage source heat pump, the cleaning assembly is arranged in the inner cavity of the filtering cylinder, the filtering mechanism can be cleaned without taking out the filtering cylinder, a threaded rod and a screw rod are matched to drive the cleaning assembly to scrape and brush the ground from top to bottom, dirt remaining in the filtering cylinder can be cleaned more precisely, the repeated utilization rate of the filtering cylinder is increased, and the cleaning efficiency is improved. The cost is reduced.

The invention discloses a cold and heat demand coupling type waste heat recovery system, a control method and a storage medium. The cold and heat demand coupling type waste heat recovery system comprises a plurality of heat supply loops, a plurality of cold supply loops and a controller. A first temperature sensor is arranged on a water outlet pipe of the leaf storage room to obtain a first temperature; a third temperature sensor is arranged on a water outlet pipe at the heat absorption end of the heat exchanger to obtain a third temperature; the controller controls opening and closing of a heat supply loop and a cold supply loop according to the first temperature and the third temperature; the water source heat pump supplies heat to the tobacco leaf storage room and supplies cold to the tobacco shred storage room at the same time, cold and heat complementation of the tobacco leaf storage room and the tobacco shred storage room is achieved, the water inlet temperature of the low-temperature side of the water source heat pump is improved through the heat exchanger, and therefore the system energy efficiency is improved; the air source heat pump is arranged, relative cold and heat sources are supplemented in time when the cold and heat requirements of the system are not equal, and stable operation of the system is guaranteed; by arranging various heat supply loops and cold supply loops, heat supply in winter and heat supply and cold supply in summer can be met.

1. The name of this design product: Magnetic levitation water-source heat pump (complete unit). 2. Application of this design product: used for cooling and heating. 3. The key point of the design of this product lies in its shape. 4. The picture or photo that best illustrates the design points: Stereoscopic drawing 1.

The utility model relates to a kind of PV / T phase change energy storage water source heat pump heating system, including heat collection circulation loop, heat transfer circulation loop, heating circulation loop;Heat collection circulation loop includes cyclically communicated PV / T photovoltaic photo-thermal plate and phase change water tank;Heat transfer circulation loop includes cyclically communicated phase change water tank and double-source heat pump;Heating circulation loop includes cyclically communicated double-source heat pump and fan-coil unit.Wherein, phase change water tank includes shell, and the first spiral pipe heat exchanger and second spiral pipe heat exchanger of shell inside being set;First spiral pipe heat exchanger is connected with PV / T photovoltaic photo-thermal plate closed loop, and second spiral pipe heat exchanger is connected with double-source heat pump closed loop.Compared with prior art, the PV / T photovoltaic photo-thermal plate of the utility model system is collected solar heat while generating electricity, and the electric energy generated can drive heat pump to operate, and heat energy is used for auxiliary heating or storage;Heat pump utilizes double-source to improve heating energy efficiency, and phase change energy storage reduces energy loss.

The utility model relates to the technical field of heat exchange equipment, in particular to a double-effect double-source heat pump system which comprises a first plate heat exchanger, a first water circulation branch, a second plate heat exchanger, a high-temperature water source heat pump and a second water circulation branch. A fourth water circulation branch is arranged on the condensation side of the high-temperature water source heat pump. The utility model provides a double-effect double-source heat pump system which can generate high-temperature water on one hand and absorb heat of deoxidized water or normal-temperature water needing to be cooled on the other hand, so that energy consumption of heating and cooling environments is reduced.

This utility model discloses a brewery heating system with molten salt energy storage, including a water source heat pump module. The water source heat pump module comprises a first working fluid-water heat exchanger, an expander, a second working fluid-water heat exchanger, a compressor, a water storage tank, a second water pump, and a third water pump. The water source heat pump module is used to convert the low-quality heat from waste hot water generated in the brewery's process into high-quality heat. This utility model addresses the current situation of energy waste and steam demand in breweries by utilizing a water source heat pump module, a molten salt energy storage module, and a steam generation module. It can be designed to take advantage of the availability of off-peak electricity and renewable energy sources, and is equipped with a molten salt electric heater to fully utilize off-peak electricity or renewable energy, reducing steam costs in the industrial park. The heat pump system can recover heat from the waste hot water, improving energy efficiency.

The invention belongs to the technical field of solar energy utilization and building heating ventilation air conditioning, and provides a circulating type solar photovoltaic photo-thermal heat pump quadruple supply system which comprises a water source heat pump unit, a PV / T assembly, a domestic hot water tank, an air conditioner water tank, an air cooling heat pump unit, a photovoltaic inverter and a water source heat pump primary circulating pump. The PV / T assembly is organically integrated with core equipment such as the water source heat pump unit and the air-cooled heat pump unit, precise control under different seasons and different working conditions is achieved by means of the medium loop switching assembly and the cut-off assembly, the four-combined-supply functions of refrigerating, heating, water heating and power generation are integrated, the photovoltaic power generation efficiency is improved, energy waste is greatly reduced, and the energy consumption is reduced. The comprehensive energy efficiency of the system is improved, meanwhile, equipment loss caused by frequent switching of working conditions of a traditional system is avoided, the service life is prolonged, the installation space and cost of an independent system are reduced through integrated design, and the system is suitable for various building scenes and meets the requirements for building energy saving and renewable energy utilization.

This invention discloses an integrated energy cabinet for industrial and mining applications and its intelligent energy management system, relating to the field of automatic control technology. The integrated energy cabinet includes: a water source heat pump unit, a heat exchanger, a sensor network, a controller, and an energy storage and distribution device. The water source heat pump unit transfers heat energy to the energy storage and distribution device. The energy storage and distribution device includes: an energy storage section and an energy distribution section. The energy storage section includes: a flywheel energy storage device and a phase change energy storage device. The energy distribution section obtains and extracts energy from the energy storage section and transmits it to the target industrial and mining energy-consuming device. The controller is used to control the operation of the water source heat pump unit, the heat exchanger, the energy storage and distribution device, and each industrial and mining energy-consuming device according to various received control commands. This invention solves the problems of insufficient energy efficiency optimization, poor dynamic adjustment capability, limited intelligence, and low system integration in existing technologies.

The application provides a new energy heavy truck thermal management system, vehicle and method, relates to the vehicle thermal management technical field, wherein the thermal management system comprises: a refrigerant circuit and a coolant circuit; the coolant circuit is provided with a first water source heat pump connected with a cooling circuit of a battery pack and a second water source heat pump connected with a cooling circuit of a motor unit, the coolant circuit is connected with the refrigerant circuit through a cooler, the refrigerant circuit is communicated with an air conditioning device arranged in a driver cabin to heat the driver cabin through the battery pack and / or the motor unit; the cooling circuit of the battery pack is connected with the cooling circuit of the motor unit, so that the motor unit is used as a direct heat pump of the battery pack to heat the battery pack. The application improves the energy efficiency, reliability and environmental adaptability of the whole vehicle thermal management system.

The utility model discloses a water source heat pump type waste heat recovery hot water air conditioning unit which comprises a first compressor, a four-way reversing valve, an air conditioning heat exchanger, a shell-and-tube type water source heat exchanger, a first gas-liquid separator, a second compressor, a hot water heat exchanger and a second gas-liquid separator. An exhaust pipe of the first compressor is connected with a first valve port of the four-way reversing valve, a second valve port of the four-way reversing valve is sequentially connected with the air conditioner heat exchanger, the first filter, the first expansion valve, the third filter and a first port of the shell-and-tube water source heat exchanger, and a second port of the shell-and-tube water source heat exchanger is connected with a fourth valve port of the four-way reversing valve. And a third valve port of the four-way reversing valve is sequentially connected with a first gas-liquid separator and a first compressor. An exhaust pipe of the second compressor is sequentially connected with a hot water heat exchanger, a second filter, a second expansion valve and a third port of a shell-and-tube water source heat exchanger, and a fourth port of the shell-and-tube water source heat exchanger is sequentially connected with a second gas-liquid separator and an air suction pipe of the second compressor.

The invention belongs to the technical field of energy-saving cultivation, and relates to a water source heat pump bilateral energy-saving data acquisition system which comprises a water source heat pump circulating system, a sensor assembly, a controller and a magnetic driving assembly. The water source heat pump circulation system forms a warm water and cold water circulation loop through a pipeline and communicates with the water tank and the pool. The sensor assemblies are arranged in a plurality of culture ponds and used for collecting water quality parameters; the controller receives and processes the data. The magnetic driving assembly drives the driving unit internally provided with the first magnetic part to rotate through water flow in the pipe, and drives the driven unit externally provided with the second magnetic part to rotate synchronously through magnetic coupling so as to drive the auxiliary equipment. The system realizes two-way heat utilization and synchronous heat supply and refrigeration, so that the energy efficiency is improved; automatic control is integrated, the water temperature and the rotating speed of the oxygen generator are adjusted in real time, key parameters are recorded, and intelligent management is achieved; and rapid, uniform and stable measurement values of the sensor are ensured through non-contact magnetic driving, and the breeding efficiency and the product quality are improved.

The invention discloses a sludge drying intelligent management and control system based on Internet of Things, and belongs to the technical field of sludge drying. Comprising a sludge drying machine, a circulating fan, a pre-cooling heat exchanger, a condenser and a heater, the sludge drying machine is provided with a feed port, a discharge port, a hot air inlet and an exhaust port, the exhaust port of the sludge drying machine is connected with the circulating fan, and an air outlet of the circulating fan is connected with the hot air inlet of the sludge drying machine after passing through the pre-cooling heat exchanger, the condenser and the heater. The water source heat pump unit raises the environmental heat energy to 60-80 DEG C, the environmental heat energy is fed into the conveying belt through the air duct, the circulating fan circularly inputs the dried gas into the sludge drying machine after three-stage heat exchange (pre-cooling, condensation and preheating) to dry the sludge, the moisture condensation rate reaches 90%, and the waste heat recovery rate exceeds 80%.

The invention relates to the technical field of mineral separation, and provides a method for graded heating of flotation reagent preparation water based on cooling waste heat of a strong magnetic separator, which comprises the following steps: introducing normal-temperature water into the strong magnetic separator for cooling and heat exchange to obtain cooling hot water with increased temperature; one part of the cooling hot water is divided into a first water flow and a second water flow; the first path of water flow enters an air energy heat pump to be heated for the first time, and first-temperature hot water is obtained; the first-temperature water flow enters the water source heat pump to be heated for the second time, the second-path water flow enters the heat source side of the water source heat pump to serve as a heat source for heating for the second time, and second-temperature hot water higher than the first-temperature hot water is obtained; and supplying the hot water at the second temperature to a primary preparation process of the flotation reagent, and supplying the hot water at the first temperature to a secondary preparation process of the flotation reagent. Efficient recovery and gradient utilization of the cooling waste heat of the strong magnetic separator are achieved, two kinds of stable hot water at different temperatures can be synchronously produced, and the preparation procedure of the flotation reagent is precisely connected in a butt joint mode.

The invention belongs to the field of shallow geothermal resources, particularly provides a shallow geothermal energy multi-field coupling simulation experiment system, and aims to solve the problems that traditional numerical simulation lacks physical authenticity, and field test is high in cost, long in period and uncontrollable. An experiment platform box body integrated with a layered simulation geologic body is constructed, and systems such as groundwater runoff simulation, mesh temperature control, a heat interference source, buried pipe heat exchange and water pumping and filling wells and the like are cooperatively operated; a'heat-water-force 'multi-physical field coupling environment including underground water seepage, ground temperature field distribution and ground source / water source heat pump engineering activities is truly simulated, so that the development process of shallow geothermal energy is accurately simulated.

The application provides a water source heat pump heating system, which comprises a water source heat pump unit, an ice source heat pump unit and an ice crystal generating device. The water source heat pump unit is connected with a water source and is used for heat exchange with the water source. The ice source heat pump unit is used for heat exchange with the cold water from the water source heat pump unit to form supercooled water. The ice crystal generating device is used for removing the supercooling of the supercooled water to form an ice-water mixture. The ice-water separation device is used for separating the ice-water mixture into solid ice crystals and liquid water and is provided with a water outlet connected with the cold end inlet of the ice source heat pump unit. Firstly, the water source heat pump extracts the sensible heat of the water source to provide heat. Secondly, the ice source heat pump is used to cool the water to form supercooled water to further extract the heat of the water source. Then, the supercooled water is removed from the supercooling to form an ice crystal and water mixture. The liquid water is returned to the ice source heat pump for heat exchange to realize the utilization of the latent heat of the water source. Thus, the sensible heat and the latent heat of the water can be efficiently utilized while the heat supply is stable, the water can be used in the form of ice, the water consumption of the conventional water source heat pump is greatly reduced, and the waste of resources is reduced.