22 results about "Heating energy" patented technology

This invention relates to the field of low-grade thermal power generation technology, and more particularly to a Karina cycle power generation system based on an ORC working fluid pair and its application. The system includes a power generation unit with a circulating working fluid consisting of a first low-boiling-point component and a second high-boiling-point component. An external heat source is introduced into the heat exchange unit to heat the working fluid. A phase change separation unit separates the heated working fluid into a gas phase branch and a liquid phase branch. The gas phase branch is connected to a turbine expander to convert thermal energy into electrical energy. A control device acquires external heat source temperature distribution data and real-time phase change temperature data of the working fluid through a status acquisition module. A temperature difference calculation module generates heat exchange temperature difference data including temperature deviation values. A circulation control module receives the heat exchange temperature difference data and outputs flow regulation commands to a pressurized pumping unit to adjust the circulating flow rate of the working fluid, reduce the heat exchange temperature difference, and improve the thermoelectric conversion efficiency.

This utility model discloses a condensation-reheat type gas whitening device, belonging to the field of humid gas whitening technology. It includes: a hydrophobic storage system for storing steam condensate from a hydrophobic pipe and outputting high-humidity gas from the steam condensate; a condensation system connected to the hydrophobic storage system for condensing and drying the high-humidity gas output from the hydrophobic storage system into saturated humid gas before output; and a reheating device connected to the hydrophobic storage system and the condensation system for cooling the steam condensate output from the hydrophobic pipe before inputting it into the hydrophobic storage system, and simultaneously heating the saturated humid gas output from the condensation system to form unsaturated high-temperature gas before discharge. This application utilizes heat exchange between the saturated humid gas and the steam condensate in the reheating device, which can effectively reduce the temperature of the steam condensate entering the hydrophobic storage system, thereby mitigating the degree of flash evaporation of the steam condensate.

This invention discloses a method for regulating the operation of a low-temperature return water cogeneration heating system, comprising: determining the minimum supply water temperature t0 of the system; when the heating load is greater than the load threshold Q0, using a quality regulation method, the system operates at the maximum circulating water volume, and the supply water temperature gradually decreases from the design temperature to the minimum supply water temperature t0; when the heating load is less than or equal to the load threshold Q0, using a quantity regulation method, the circulating water volume can be changed within a set range to maintain the supply water temperature at the minimum supply water temperature t0; calculating the equivalent heating power of each stage of steam and each operating condition; using the lowest weighted equivalent heating power w of the power plant as the sorting principle, determining the steam extraction sequence and steam volume of each unit during the heating load change process. This invention achieves refined regulation of power plant heating, incorporating power plant circulating water volume, supply water temperature, heating steam matching, and unit back pressure into the heating regulation scope on the basis of traditional simple quality and quantity regulation, thereby optimizing the power plant's heating energy consumption.

The present application relates to water purification equipment technical field, especially a kind of water purifier anti-freezing system and method, in water purifier integration heat dissipation module, temperature detection module, heating water tank and control module, heat dissipation water tank and heating water tank are communicated;The first temperature detection unit of temperature detection module is used to detect the cavity temperature of water purifier;Second temperature detection unit is used to detect the temperature in heating water tank, in the night without using, control module in the cavity temperature of water purifier body is less than first preset temperature, and the temperature in heating water tank is not less than second preset temperature, control the water in heating water tank is transferred to heat dissipation water tank, and control heat dissipation device opens, to make the heat of heat dissipation water tank be transferred to the cavity inside of water purifier, so it is the heat of hot water in heating water tank to the cavity in water purifier, promote the temperature in cavity, prevent the situation that water cannot be discharged due to pipe icing caused by temperature in water purifier is too low, and avoid the waste of heat energy in heating water tank.

In thermal energy storage power generation, we provide a thermal energy storage system that can efficiently raise the temperature of the heat transfer medium using an electric heater. [Solution] The heat storage system 10 comprises a heat storage tank 20 configured to store a heat transfer medium HHM and extending in a first direction X, and a heating unit 11 configured to heat the heat transfer medium and in contact with the heat storage tank 20 in a second direction Y, wherein the heating unit 11 includes one or more heating tubes 13 configured through which the heat transfer medium flows and into the heat storage tank 20, and one or more electric heaters 14 configured to heat the heating tubes 13, wherein in the first direction X, the heating tubes 13 and the electric heaters 14 extend over approximately the entire length of the heat storage tank 20.

This application discloses a heating adaptive control method and system based on microclimate prediction, relating to the field of heating control technology. The method includes: acquiring microclimate prediction data for a future period; acquiring a predicted stored heat sequence based on predicted solar radiation intensity and outdoor temperature sequences; acquiring a predicted energy efficiency coefficient sequence based on predicted outdoor temperature and relative humidity sequences; calculating the target heat to be supplemented by a second heating unit based on the predicted stored heat sequence; converting the target heat into an operating plan for the second heating unit in the future period; making real-time adjustments to the operating plan; and generating execution commands to control the second heating unit to provide heating. This solves the technical problem of existing technologies being unable to adjust heating strategies in advance, leading to high heating energy consumption and decreased model control performance.

This disclosure applies to the field of thermal power energy storage, providing a scheduling method and system for coupling thermal power and thermal storage. When it is necessary to reduce the power generation of a thermal power unit, the flow rate of process steam drawn from the turbine unit of the thermal power unit is increased; the heated circulating thermal storage medium flows into an underground thermal storage unit, which includes heat exchange pipes buried in the soil. The circulating thermal storage medium is drawn from the underground thermal storage unit and transported to a heat exchanger, allowing the circulating thermal storage medium to exchange heat with the heat supply medium to heat the heat supply medium. By introducing an underground thermal storage unit coupled with buried pipes and a closed-loop system, this invention transfers the waste heat from the process steam of the turbine unit to the circulating thermal storage medium through a thermal storage heater, and then allows it to enter the underground thermal storage unit to exchange heat with the soil. Excess heat energy is stored in the underground soil over time periods, so that the regulation of power generation and the process of external heat supply are no longer intertwined.

Device for estimating the hot water consumption of a hot water production system, method and associated systems The present invention relates to a device (30) for estimating the hot water consumption of a hot water production system (10) over a time period comprising a tank (12) having a lower part (18) and a heating device (14), the estimating device (30) comprising: - an acquisition unit (34) measuring a temporal evolution of the water temperature of the lower part (18) during a period of use of the heating device (14), - an analysis unit (42) analyzing the variations of the temporal evolution to obtain a switching instant between a first sub-phase and a second sub-phase of a specific model of use of the heating device (14),and - a calculation unit (44) calculating a quantity representative of the heating energy of the volume of water consumed from the moment of switching. Figure for the abbreviation: figure 1,

The application discloses a burning furnace and a burning heat recovery system thereof, which comprises an inner heat preservation assembly, a shell and an air jacket assembly arranged in sequence from inside to outside, the air jacket assembly comprises an air interlayer, an air heat preservation layer and a protective layer arranged in sequence from inside to outside, the air interlayer is connected with a cold air fan and an air induction assembly, the cold air fan sends cold air into the air interlayer, and the air induction assembly leads hot air out of the air interlayer, so that the temperature of air in the air interlayer is between the temperature of the outer wall of the shell and the temperature of the protective layer. The air in the air interlayer and the shell are in natural or forced convection heat transfer, which can ensure that the temperature of the shell of the burning furnace is higher than the dew point temperature of the burning flue gas which may penetrate into the inner heat preservation layer and contact with the shell, thereby avoiding low-temperature corrosion. Meanwhile, in order to avoid scalding maintenance and inspection personnel, the air flow is accelerated through the cold air fan and the air induction assembly, so that the temperature in the air interlayer is reduced in a gradient, and the safety in use is ensured.

A heat storage and release system, belonging to the technical field of thermal power generation and thermal systems, includes a feedwater pump, an economizer, and a heat storage and release device. The economizer is located downstream of the feedwater pump along the feedwater flow direction, and its inlet is connected to the feedwater pump outlet via a main pipeline. The heat storage and release device has a heat storage structure and integrates a first heat exchange loop and a second heat exchange loop. The first heat exchange loop is a heat storage loop, with one end connected to the economizer outlet pipeline and the other end connected to the feedwater pump outlet pipeline. It is used to introduce a portion of the high-temperature feedwater from the economizer outlet into the heat storage and release device, where it exchanges heat with the heat storage structure through the first heat exchange loop to store thermal energy. The second heat exchange loop is a heat release loop, with one end connected to the economizer inlet pipeline and the other end connected to the feedwater pump outlet pipeline. It is used to introduce a portion of the low-temperature feedwater output from the feedwater pump into the heat storage and release device, where it exchanges heat with the heat storage structure through the second heat exchange loop. The stored thermal energy is used to preheat the low-temperature feedwater before it is sent to the economizer.

The application discloses a parallel type setting machine waste heat recovery system, which comprises a setting machine, a first waste heat recovery device and a second waste heat recovery device. The setting machine comprises a front setting section and a rear setting section. The front setting section is connected with a first waste gas pipeline, and the rear setting section is connected with a second waste gas pipeline. The fresh air channels of the first waste heat recovery device and the second waste heat recovery device are respectively connected with the air inlet of the front setting section and the air inlet of the rear setting section through a first fresh air outlet pipe and a second fresh air outlet pipe. Since the temperatures of the front waste heat and the rear waste heat are different, the temperatures of the heated fresh air are also different. The fresh air heated by the front waste heat is introduced into the front setting section, and the fresh air heated by the rear waste heat is introduced into the rear setting section, so that the conversion of different waste heat energies can be reasonably utilized.

[Problem] Thermal conductance of a heat source is grasped to contribute to the effective utilization of unused thermal energy. [Solution] A thermal conductance measuring method includes: connecting the other end of a thermal conduction path to a heat source to be measured, the thermal conduction path having a cooling source at one end (S10); installing a heating element in the thermal conduction path, the heating element controllable to fluctuate a heat generation amount by applying fluctuating heating energy to the heating element; measuring a temperature within the thermal conduction path and acquiring a first temperature affected by heat generation by the heating element and a second temperature not affected by heat generation by the heating element (S30, S50); and calculating thermal conductance of the heat source based on a difference between the first temperature and the second temperature (S60) and the heating energy when the first temperature was measured (S80). Since this allows the thermal conductance of the heat source to be calculated without the need to grasp a specific heat, mass, or the like of the heat source, it is possible to contribute to the effective utilization of the unused thermal energy possessed by the heat source.

The application discloses a kind of workshop drying equipment tail gas waste heat recovery system and process, the present application is aimed at the latent heat of high-temperature and high-humidity tail gas discharged by drying equipment is difficult to recover, which leads to low system energy efficiency, adopts cascade cooling and dehumidification and heat pump coupling recovery technology, sequentially carries out pre-filtering, primary heat exchange cooling, surface cooling and dehumidification and deep waste heat extraction on tail gas, and converts low-level waste heat into high-level heat energy and into hot air or hot water for production preheating and workshop heating;The system mainly comprises a tail gas heat exchange unit, a heat pump unit, a condensing heat exchange unit, a dehumidification unit and a control system, the dehumidification cold source is taken from the heat pump evaporation side refrigerant, without external independent cold source, the process is simple, and the energy consumption is lower;The present application can fully recover the sensible heat and latent heat in the tail gas, thereby reducing the risk of frost and blockage of the heat exchange surface, effectively improving the waste heat recovery rate and system operation stability.

This invention discloses a defrosting control method, device, electronic equipment, and air conditioner to solve the problem that existing defrosting control methods are unable to accurately determine the defrosting timing. The defrosting control method includes: acquiring the cumulative heating parameter values ​​up to the current detection time point within the heating defrosting cycle; acquiring the defrosting heat consumption parameter value corresponding to the current detection time point; determining, based on the cumulative heating parameter value and the defrosting heat consumption parameter value, whether the current detection time point is a target time point that ensures the cyclic heating parameters of the heating defrosting cycle meet target conditions; and, if the current detection time point is determined to be the target time point, determining the defrosting timing based on the current detection time point. This invention can more accurately determine the time point that optimizes or improves the heating energy consumption parameters within the cycle for defrosting, effectively solving the problems of low energy efficiency in traditional defrosting timing and "false defrosting" during frost-free defrosting.

This invention discloses an energy recovery and reuse system for the malt industry, comprising a first hot water heat pump, a second hot water heat pump, a plate heat exchanger, an energy storage tank, a steam condensate tank, a micro-pressure steam heat pump, and a steam compressor. This invention utilizes a modified heat pump system. A heat pump is a device that uses electrical energy to raise heat from a low temperature to a high temperature, offering advantages such as environmental friendliness, energy saving, economy, and convenience. In scenarios like malt factories where energy efficiency is crucial and both cooling and heating are required, the heat pump thermal energy system can flexibly adapt to different heating functions, achieving low-temperature waste heat recovery.

This application relates to the interdisciplinary field of thermal engineering and computational fluid dynamics, specifically a method and system for simulating the thermal performance of cooling tower rain zones based on a bimodal dynamic evolution model. This application fully considers the real physical characteristic of the rain zone's particle size distribution being "larger at the top and smaller at the bottom": the upper part of the rain zone (near the packing outlet) is dominated by large-diameter raindrops, interspersed with a small amount of small-diameter raindrops generated from primary breakage, forming the first redistribution; the lower part of the rain zone (near the collection pool) sees a significant increase in the proportion of small-diameter raindrops due to continuous breakage, forming the second redistribution. By extracting the distribution parameters of the large and small-diameter groups through on-site measurements, a bimodal injection model with dynamically correctable heat transfer coefficients is constructed. Under the premise of ensuring computational stability and mass conservation, an equivalent simulation of the raindrop breakage effect is achieved, thereby improving the prediction accuracy of the cooling tower's thermal performance.

This invention relates to the field of thermal energy storage technology, and more particularly to a dynamic thermal energy storage and heating regulation system and method based on energy efficiency optimization. This invention collaboratively models multiple parameters such as server load rate, cooling water return temperature, and heating-side supply and return water temperatures to convert instantaneous surplus heat into dispatchable thermal storage. By releasing the stored heat and adjusting the proportion of auxiliary heat sources, the temperature difference between the heating-side supply and return water is stabilized within the target range, avoiding room temperature deviations and energy efficiency deterioration caused by heat source fluctuations. Simultaneously, closed-loop corrections of the charging and releasing heat power, heating demand range, and index weights allow the system to gradually approach the balance point of minimum energy consumption and optimal thermal comfort during long-term operation. This significantly improves waste heat utilization and reduces unit heating energy consumption while ensuring the thermal comfort of the building complex, effectively solving the problems of insufficient heating stability and low waste heat utilization efficiency caused by asynchronous heating regulation and waste heat recovery responses.

This invention relates to the field of waste-to-energy incineration and discloses a system and method for deep recovery of waste-to-energy incineration flue gas. The system includes: passing waste-to-energy incineration flue gas into a metal heat exchanger to recover high-grade sensible heat; then passing it into a fluoroplastic heat exchanger for pre-cooling; passing the treated flue gas into a spray tower for deep cooling to recover latent heat of vaporization; and using a water treatment system to regulate circulating water parameters to remove acidic gases. The low-temperature hot water recovered from the spray tower is used as a heat source for a heat pump system, and the heat energy is transferred to a reheater. The flue gas is then reheated in the reheater, and the reheated flue gas is discharged through a chimney. This invention solves the problems of insufficient recovery of sensible and latent heat from waste-to-energy incineration flue gas, low utilization rate of low-grade waste heat, severe low-temperature acid dew point corrosion during deep cooling leading to easy damage to heat exchange equipment, direct emission of low-temperature wet flue gas forming white smoke with poor environmental appearance, and high water consumption in water-scarce areas due to the lack of recovery and reuse of flue gas condensate.

The utility model provides a system of waste heat power plant cooling tower top steam water recovery is carried out with the application of ground source heat pump, the system includes shallow ground heat energy heat extraction system, ground source heat pump system and cooling tower top steam water recovery system, shallow ground heat energy heat extraction system's output end is connected ground source heat pump system, and the output end of ground source heat pump system is connected cooling tower top steam water recovery system, the utility model will ground heat energy into cold energy, carries out condensation to the steam of cooling tower dissipation, can recover water resources.

This utility model discloses a four-source synergistic coupling heat pump system based on wind-solar hybrid power supply, including an air-source heat pump unit, a ground-source heat pump unit, a water-source heat pump unit, an energy storage tank, photovoltaic (PV) panels, a wind turbine generator, and a PLC control mechanism. The air-source heat pump unit is connected to the energy storage tank via a first circulation pipeline, the ground-source heat pump unit is connected to the first circulation pipeline via a second circulation pipeline, and the water-source heat pump unit is connected to the energy storage tank via a third circulation pipeline. The beneficial effects are: by coupling four types of heat sources—air, ground, water, and solar energy—and intelligently selecting the optimal combination, the limitations of a single heat source are significantly overcome, greatly improving the overall operating efficiency and stability of the heat pump system. It also captures data across multiple dimensions and environmental conditions on a broad scale and large scale, effectively improving the comprehensive utilization efficiency of thermal energy resources.

This invention discloses a solar-driven process-heated air latent heat recovery system for treating saline wastewater. Driven purely by solar energy, the system's core components include a process-heated evaporation separation device and a bubbling heat self-sustaining air latent heat recovery unit, forming four working fluid flow paths: solar-powered hot water, carrier air, saline wastewater, and condensate recovery. The system innovatively employs a process-heated energy supply method, replacing traditional fluid-carrying heat supply, achieving complete water-salt separation at a heat supply temperature below 65°C. Relying on the bubbling heat self-sustaining air latent heat recovery unit, it recovers 35-45% of the latent heat of vaporization from high-temperature, high-humidity air and utilizes it in stages, breaking through the 100% thermal performance coefficient limit of traditional systems. This invention requires no additional energy, achieves zero wastewater discharge, is suitable for various types of non-volatile saline wastewater, and boasts advantages of zero carbon footprint, high efficiency, and low cost. It can be widely applied in industrial high-salt wastewater treatment, wastewater recycling in remote areas, and small-scale seawater desalination.

This application discloses a dual-heat storage coupled heating system and its control method. The heating system includes a heat pump unit, a gas generator, a water supply pipeline, a first heat storage device, and a second heat storage device. The first heat storage device is deployed on the medium circulation pipeline of the heat pump unit and connected to the gas generator. The first heat storage device stores the waste heat generated by the gas generator during operation and releases the stored waste heat to the heat pump unit during operation. The second heat storage device is connected to the water supply pipeline, so that a portion of the water supplied from the heat pump unit to the water supply pipeline is stored in the second heat storage device and then flows back to the heat pump unit. This application forms a dual-heat storage coupled system by setting up a first heat storage device and a second heat storage device. By storing the waste heat generated by the gas furnace during operation through the first heat storage device, the waste heat recovery and utilization are decoupled in time, avoiding waste of waste heat and improving energy utilization efficiency. The second heat storage device provides an energy buffer for the main heat source formed by the heat pump and gas unit, storing the heat energy generated by the heat pump during periods of low electricity prices and releasing it preferentially during periods of high energy prices. This reduces the operating cost of the heating system and also smooths out water temperature fluctuations during heat source switching, avoiding discomfort to users caused by heat source switching.