316 results about "Heat output" patented technology

The invention relates to the technical field of heat energy recovery, in particular to an efficient multistage waste heat recovery and reutilization combined heat and power generation system which comprises a heat output calculation module, a temperature difference mode analysis module, a heat exchange efficiency analysis module, an optimal parameter identification module, a condenser management module and a condensate water recovery control module. According to the method, temperature, flow and pressure data of multiple positions are collected in real time, the heat fluctuation trend under multiple input conditions is accurately predicted, a basis is provided for follow-up optimization decision making, and through dynamic prediction of a temperature difference mode, the heat exchanger inlet and outlet temperature and the mutual relation between multiple equipment working parameters are combined, so that the heat exchange efficiency is improved. Real-time evaluation of the heat exchange efficiency is achieved, construction of a working model of a heat exchanger is combined, optimal working parameters under multiple temperature gradients are accurately recognized, optimization of working parameters of a condenser and condensate water recovery equipment is combined, the energy utilization rate of the combined heat and power generation system is increased, energy consumption is reduced, and resource waste is reduced.

The invention provides a high-temperature liquid cooling cabinet control system and method based on intelligent energy efficiency optimization, and relates to the technical field of intelligent adjustment control. And meanwhile, constructing a digital twin containing a heat flow coupling simulation model and multi-target dynamic optimization to process real-time operation data of the liquid-cooled cabinet acquired in real time, deducing a heat dissipation result, an energy consumption result and a heat recovery result of the liquid-cooled cabinet, and performing multi-target dynamic optimization by taking the deducing result as a basis. Simulation solution is carried out by taking the purposes of ensuring the safety of a computing chip, reducing the energy consumption and stabilizing the waste heat quality as targets, an optimal control instruction set is obtained, a global dynamic balance point is actively generated in each control period, and low-energy-consumption and stable high-temperature heat output are achieved while the optimal heat dissipation cooling efficiency is ensured. Multi-target maximization cooperation is achieved, the energy utilization rate and the cooling efficiency are improved, waste is avoided, and the cost is reduced.

The invention discloses a boiler direct carbon emission intensity correction method and a related device, and relates to the technical field of boiler carbon emission, and the method comprises the following steps: obtaining boiler efficiency, boiler direct carbon emission and boiler output heat obtained by performing an energy efficiency test and a carbon emission test on a boiler under a test condition; calculating a correction coefficient based on carbon in the fuel and a correction coefficient based on sulfur in the fuel based on the analysis value of the element or the component of the test fuel and the analysis value of the element or the component of the reference fuel; based on the boiler efficiency, the boiler direct carbon emission, the boiler output heat, the correction coefficient based on the carbon in the fuel and the correction coefficient based on the sulfur in the fuel, the corrected boiler direct carbon emission intensity corrected to the reference condition is obtained through calculation, and correction of the boiler direct carbon emission intensity when the test condition is inconsistent with the reference condition can be achieved; therefore, scientific evaluation of the carbon emission level of the boiler is realized.

The invention relates to a one-machine, three-device and four-working-medium full-effect power generation system technology for earth rock heat and other steam energy, in particular to a'gas-gas-steam-steam 'one-machine, three-device and four-cycle' micro-condensation cycle water feeder system, a double-water working medium heat exchanger system, a reverse Carnot cycle system and an earth rock heat output system which are matched with one another. A duplex reverse Carnot cycle system double-effect parallel medium two-direction progressive technological process, a single working medium through-flow structure and Rankine cycle uniform heat variable flow through-flow with'thermal unloading water and thermal loading water 'single working medium partition wall convection' micro-condensation heat regeneration and'main energy small flow steam and heated cycle huge running water 'double working medium partition wall convection heat exchange' are systematically created. The invention relates to a geothermal steam working medium independent heat exchange type output circulation, Rankine cycle power generation with two closed working media equal in heat and unequal in water through-flow, and a multi-system working principle that model selection is performed according to 6-20 times of through-flow and accumulation of small efficiency factors is equal to efficiency is combined, and a one-machine, three-device and four-cycle full-effect power generation system of general steam turbine distribution system full-efficiency power generation is included.

The invention relates to the technical field of heat energy storage and conversion, and discloses a multi-module fused salt phase change heat storage system capable of achieving stable heat output and a regulation and control method. The system comprises a plurality of standardized fused salt heat storage / heat exchange modules, a water tank, a water supply pipeline, a steam main loop and a central control system with a sensor. During operation, fused salt solidification heat release is utilized to generate steam, the steam flow, the liquid level and the fused salt temperature gradient of each module are monitored in real time through the central controller, and heat exchange attenuation caused by solidification layer thickening is predicted. And the liquid level, start and stop of the modules are dynamically adjusted by adopting sequential alternate regulation, so that the outputs of the modules in different attenuation states are subjected to superposition compensation, and the stability of the total steam flow is maintained. According to the invention, the heat exchange area does not need to be overmatched, the 100-200 DEG C saturated steam can be output, and the device is suitable for the fields of chemical industry and the like, and has both stability and economical efficiency.

The invention relates to a variable-power scale-free boiler and topology heat transfer quasi-super Stirling ecological heat engine technology, in particular to a working principle of direct-current scale-free super heat exchange high power density reaching 8-16 times fuel oil stress application variable power in the ZL2012105664497.4 patent achievement innovation field of the inventor, and the working principle is applied to normal low pressure, middle high pressure, critical pressure, high pressure, high pressure, high pressure, high pressure, high pressure, high pressure, high pressure, high pressure, high pressure, high pressure, high pressure, high pressure, high pressure, high pressure, high pressure, high pressure, high pressure, high pressure, high pressure, high pressure, high pressure, high pressure and high pressure. Various types of boilers are free of scale obstruction, super in heat exchange, high in power density, ultra-low in cost rate, and safe in multi-module unit combination of less than 30-90L; a boiler heat exchange heat output'boiler 'system formed by connecting ten to hundreds of congruent module (tube panel) units in parallel is integrally matched with a magnesium catalysis water-based combustion-supporting combustion science'boiler' system of a '8-16 times fuel oil stress application 'Stirling'heat engine', and meanwhile, a new era of human cosmic rock planet carbon dioxide and carbon rock particle energy ecological metallurgy is created. The invention relates to a Stirling ecological heat engine, in particular to a variable-power scale-free multi-module once-through boiler and a topology heat transfer Stirling ecological heat engine, wherein the variable-power scale-free multi-module once-through boiler and the topology heat transfer Stirling ecological heat engine are used for gathering metamorphosis heat radiation and a three-guide interlining heat transfer and exchange body heat output system under the constraint of extreme-effect

The invention belongs to the technical field of heat storage, and provides a paired metal hydride storage tank heat storage system and method for solar power generation. Wherein the paired metal hydride storage tank heat storage system is respectively communicated with the solar concentrating system and the electric power system through a heat exchange medium pipeline; the paired metal hydride storage tank heat storage system is configured in a multi-stage tandem mode, and at least two stages of heat storage systems are sequentially arranged in the flowing direction of heat exchange fluid in the heat output process. Under the operation requirement higher than the threshold load, all levels of heat storage systems are in an activated state, heat exchange fluid flows through each level of system according to a preset path, and heat released by each level of heat storage system is absorbed step by step; and under the condition that the load is lower than the threshold value for operation or the set working condition requirement, at least one stage of heat storage system bypass directly obtains the needed heat from other stages of heat storage systems.

The present invention provides an immersion liquid cooling device, control method, and system, relating to the field of heat dissipation technology. Preset sensors are used to obtain the temperatures at the inlet and outlet of a chip-level evaporator and the maximum chip temperature in real time, and determine the corresponding relationship between the inlet and outlet temperature difference and a preset threshold value. If the outlet temperature difference is less than the preset threshold, the valve opening of the pipeline valve corresponding to the outlet temperature difference is controlled to decrease as the outlet temperature difference increases, and the valve opening is determined in real time. When the valve opening reaches a minimum and the outlet temperature is still less than the preset threshold, the target fan speed is determined according to a first preset formula based on the maximum chip temperature and the chip heat output. If the outlet temperature difference is equal to the preset threshold, the target fan speed is determined based on the maximum chip temperature and the chip heat output. The present invention solves the problem in the prior art of lacking an immersion liquid cooling device, control method, and system with controllable cooling objects and cooling effects and a wide range of applicability.

The invention provides a model selection method and device for a solid electric heat storage system and relates to the technical field of solid electric heat storage, and the method comprises the steps that parameters of the solid electric heat storage system, parameters of a heat supply pipe network and daily heat demand of a user side are obtained; determining the target pipe network heat storage amount according to the heat supply pipe network parameters; according to the target pipe network heat storage capacity and the heat supply pipe network parameters, the output heat capable of being output to the user side by the pipe network is determined; based on the daily heat demand, the output heat, the solid electric heat storage system parameters and the heat supply pipe network parameters, first target heat storage capacity is determined; and a model selection scheme of the solid electric heat storage system is determined based on the first target heat storage amount, and the model selection scheme of the solid electric heat storage system with stable heat storage and lower cost is obtained.

The invention relates to the technical field of intelligent control, in particular to an intelligent control system and method for a substation air conditioner, and the system comprises a sensing measurement module, a load recognition module, a task unloading module, a path scheduling module and a control linkage module. According to the method, the air conditioner start-stop state and the environment data are collected and classified and fused, the recognition depth of the space environment is enhanced, the response matching capacity of a control system to operation changes is improved, the abnormal state in equipment operation is recognized based on analysis of the fan operation track and the compressor start-stop rhythm, the fault risk is reduced, and the safety of equipment operation is improved. Light load tasks with stable control period, low execution frequency and less resource occupation are screened, suspension and transfer are implemented, dynamic allocation of task resources is optimized, a control path is dynamically matched according to the current load condition of equipment, and the control efficiency is improved by integrating control instructions and linking wind speed regulation and cold and hot output control. And the regulation and control stability and the operation collaboration of the system are enhanced.

The invention relates to the technical field of flow measurement, in particular to a flow measurement deviation correction method and system based on multi-component gas mixing change. Comprising the following steps: acquiring actually measured sound velocity and temperature-pressure parameters by using an intelligent sensor; constructing a virtual component perception model, and inverting the instantaneous concentration ratio of each component in real time by using sound velocity and physical property association; the theoretical sound velocity reference value is dynamically corrected, the signal detection deviation is compensated, and the corrected operation volume flow is output; the component proportion is input into a state equation calculation engine, and a compression factor and real-time density are solved; finally, energy flow is output in combination with unit volume calorific value. Through second-level component inversion and physical property dynamic compensation, the problems of measurement response lag and precision reduction under the component fluctuation working condition are solved.

The invention relates to the technical field of heat storage devices, and discloses a phase change fused salt and solid heat storage combined heat storage device and a working method thereof. Comprising a combined heat storage device shell, a heat preservation material, a heat exchange gas channel, a solid heat storage brick, a shaped graphite-based solid heat storage block, a phase change fused salt packaging channel, a heater, an electrical wiring terminal, a power source, a gas fan and a heat exchanger. A layer of thermal insulation material is arranged in the combined heat storage device shell, a layer of solid heat storage bricks is arranged in the thermal insulation material, and the solid heat storage bricks are filled with the shaped graphite-based solid heat storage blocks; the heat exchange gas channels and the phase change fused salt packaging channels are alternately arranged in the shaped graphite-based solid heat storage block, and the two channels are arranged in parallel. According to the invention, through combination of the solid heat storage brick and the shaped graphite-based heat storage block, rapid heat storage and long-acting heat release are realized; the phase change fused salt packaging channel prolongs the heat output and improves the energy density.

The invention relates to a method (200) for determining a water content in an air flow (11) in a temperature-control system (100) having a refrigerant circuit (120) which contains a refrigerant (12) and comprises a compressor (124) for compressing the refrigerant (12) and a heat exchanger (130) for transferring heat between the refrigerant (12) and the air flow (11), in particular in a vehicle, the method (200) comprising determining (212) an air mass flow through the heat exchanger (130), determining (210) an enthalpy difference in the air flow (11) across the heat exchanger (130), determining (220) a heat output of the refrigerant (12) in the heat exchanger (130) and determining (218) the water content in the air flow (11) on the basis of the determined heat output of the refrigerant (12), the enthalpy difference and the air mass flow. The invention also proposes a computing unit (140) and a computer program for carrying out such a method.

The present invention provides a gas burner device and a cooking appliance that can suppress the generation of yellow flames caused by a rapid increase in the burner's heat output. [Solution] When the control means 60 receives an instruction via the heat output instruction means 57 to increase the heat output of the burner 39 from the first heat output to the second heat output, the control means 60 pauses the opening of the gas quantity control valve 55, which adjusts the amount of fuel gas supplied to the burner 39, for a predetermined time or slows down the opening speed of the gas quantity control valve 55 while it is in the process of changing the opening degree of the gas quantity control valve 55 from the first heat output opening degree to obtain the first heat output to the second heat output opening degree to obtain the second heat output.

The application provides a display device and a heat dissipation control method thereof. The display device comprises a shell, the shell defines an inner cavity; a heat dissipation structure is arranged in the inner cavity, the heat dissipation structure comprises a thermoelectric cooling device and a heat sink, the thermoelectric cooling device has a hot end and a cold end, the hot end exchanges heat with the heat sink, and the cold end exchanges heat with a heat output area of the display device. The application increases the passive heat dissipation mode, the size of the thermoelectric cooling device is usually thin, the heat dissipation efficiency of the display device is improved, the requirements for the air flow generating device and the space inside the display device are reduced, the layout and structure design of other electronic elements inside the display device are not affected, and the thinning of the display device is facilitated.

The present invention provides a heat recovery-based drinking fountain and its control method, comprising: a heat storage device, an instant heating heater, and a control valve sequentially connected via a water channel; the heat storage device is configured to heat raw water inputted into a water pipe at a first temperature to warm water at a second temperature; the second temperature warm water is then inputted into the instant heating heater; the instant heating heater is configured to heat the warm water to boiling water and input the boiling water into the control valve; the control valve is configured to split the boiling water into a first boiling water source and a second boiling water source; the first boiling water is inputted into the heat storage device; the heat storage device is further configured to recover heat from the first boiling water source and output warm water at a third temperature; the water channel is further configured to mix the third temperature warm water with the second boiling water source to output directly drinkable warm water at a first preset temperature. This drinking fountain can increase the output of water at a preset temperature, save electricity, and avoid situations where the water quality is poor.

The present invention provides a gas burner device and a cooking appliance that can suppress the accumulation of soot on heated objects such as cooking containers due to the yellow flame generated in the sub-burner section immediately after the transition from a simultaneous combustion state to a single combustion state. [Solution] In a gas burner device 16 having a main burner section 36 and a sub-burner section 38, where the minimum heat output in a simultaneous combustion state when the main burner section 36 and the sub-burner section 38 burn simultaneously is greater than the maximum heat output in a single combustion state when only the sub-burner section 38 burns, but the minimum simultaneous combustion heat output opening of the gas volume control valve 55 is set to be smaller than the maximum single combustion heat output opening, the control means 60 closes the on / off valve 56 when the opening of the gas volume control valve 55 is smaller than the maximum single combustion heat output opening and is greater than or equal to the minimum simultaneous combustion heat output opening, thereby switching the combustion state of the burner 39 from a simultaneous combustion state to a single combustion state.

The double-layer heat exchange methanol catalytic heating device comprises a heating barrel, a catalytic cavity is formed in the inner side of the heating barrel, and a methanol leading-in channel is installed at the upper end of the heating barrel; a heat exchange device is mounted in the catalytic cavity and comprises an inner pipe and an outer pipe, so that the storage amount of a heat-conducting medium and the stroke of the heat-conducting medium in the equipment are increased on the whole, heat output is more effective and more stable, and the heat output amount is larger; meanwhile, the outer side of the heating barrel is sleeved with an outer barrel, a hot oil cavity is formed between the inner side wall of the outer barrel and the outer side wall of the heating barrel, and in the heating process, heat conduction oil firstly enters the hot oil cavity to conduct heat exchange on the outer side of the heating barrel and then enters a heat exchange device in the catalysis cavity through a heat conduction oil liquid inlet to conduct direct heat exchange on the interior of the catalysis cavity; and through synchronous heat exchange between the inner side and the outer side of the heating barrel, the overall heat exchange area is greatly enlarged, and the heat exchange efficiency is further improved.

The invention discloses a dynamic matching heat supply method and device based on heat load prediction and a medium, and the method comprises the steps: obtaining real-time environment data and historical heat supply data of a target heat supply area to construct a multi-dimensional data source, inputting the multi-dimensional data source to a pre-trained long-short-term memory network model, and outputting a heat load prediction value in a future designated time period; real-time heat data of a municipal heat source is obtained, and a municipal heat source flow adjusting instruction and an air source heat pump output adjusting instruction are generated based on a preset heat source matching algorithm; the municipal heat source flow adjusting instruction is sent to a flow adjusting executing mechanism in a municipal heat supply pipe network to control the heat supply amount of a municipal heat source, and an air source heat pump output adjusting instruction is sent to an air source heat pump control unit to control the start-stop state and the heating output power of an air source heat pump; and the real-time heat supply amount of the municipal heat source and the air source heat pump is monitored in real time, and the real-time heat supply amount is compared with the heat load predicted value to adjust the municipal heat source flow adjusting instruction and the air source heat pump output adjusting instruction.

A method is proposed for operating a heating appliance (1) designed for the combustion of a fuel gas containing at least 80 percent hydrogen and comprising a burner (3) arranged in a combustion chamber (8), to which a combustion mixture of the fuel gas and combustion air with a combustion air ratio λ predetermined depending on the heat output Q of the heating appliance (1) is supplied, exits through a combustion zone (15) into the combustion chamber (8) and combusts, and the combustion air ratio λ to be set is stored as a characteristic curve depending on the heat output Q of the heating appliance (1) in a combustion control of the heating appliance (1), comprising at least the following steps: a) Determining a limiting combustion air ratio λ G (Q) (17) depending on the heat output Q of the heating device (1), b) Comparing the combustion air ratio λ according to the stored characteristic curve with the limit combustion air ratio λ determined in step a). G (Q) (17), and c) Operating the heating appliance (1) with the limiting combustion air ratio λ G (Q) (17) if, for the current heat output Q, the combustion air ratio λ specified according to the characteristic curve is less than the limiting combustion air ratio λ G (Q) (17) is, and operating the heating appliance (1) with the combustion air ratio λ specified according to the characteristic curve, if for the current heat output Q the combustion air ratio λ specified according to the characteristic curve is greater than the limit combustion air ratio λ G (Q) (17) is.

This invention relates to the field of edge computing technology, specifically to an edge computing monitoring system for rotational molding equipment for storage bins. The system includes a data access terminal, edge computing nodes, a state estimation program, and a control output terminal. The data access terminal obtains process formula numbers, stage switching signals, heating output status, temperature process values, rotation speed, and cooling execution status from the existing controller of the rotational molding equipment. The edge computing nodes generate a process state sequence according to time windows, identifying the heating, melting, homogenization, and cooling stages, and obtain a molding state estimate based on a thermal inertia state model that includes heat accumulation, heat dissipation attenuation, stage coupling, and boundary inheritance. The control output terminal outputs stage hold or stage switching correction commands based on the deviation between the molding state estimate and the target state trajectory. This system reflects the thermal inertia lag state of the rotational molding process locally on the equipment side, reducing molding state deviations caused by fixed time and single-point temperature judgments.

The utility model discloses a novel variable wind warmer host, including casing, the top of casing bolted with cover plate, the inside of casing is integratedly injection molded with volute hot air bin, the device drives wind wheel to rotate through first motor to generate air flow, cooperates with PTC ceramic heater to heat the air flow, forms stable hot air output, and the heating efficiency is improved. Meanwhile, a third motor is used for driving a swing plate and a swing arm to be linked so as to cooperatively drive an air guide plate to rotate oppositely, under the condition that the power of the first motor is not changed, the air pressure of an air outlet can be changed only through adjustment of a mechanical structure, hot air can cover a longer distance, and the heating range and comfort are remarkably improved; by means of the mechanical air pressure adjusting mode, the problem that energy consumption is increased due to traditional frequency conversion speed regulation is solved, stability of heat output is guaranteed, energy consumption is reduced, and the problem that the air supply distance of a traditional warmer is short is effectively solved while low cost is maintained.

This invention discloses a steep-pulse perforation ablation emergency stop energy release control system and method, relating to the field of perforation manufacturing technology. The system, through a comprehensive energy release analysis module, calculates the energy diffusion rate Ks and the heat-affected zone area Ry, and combines this with the perforation temperature Ckwd to obtain the energy release control index Snkz, predicting the heat diffusion behavior and temperature change trend in the material. The system sets a pulse frequency threshold F2 and generates an optimized energy release strategy by comparing it with the energy release control index Snkz. When the energy release control index Snkz exceeds the pulse frequency threshold F2, the system reduces and adjusts the pulse energy E and pulse frequency f to reduce heat output and prevent material overheating; when the energy release control index Snkz is below the pulse frequency threshold F2, the system appropriately increases the pulse energy E and pulse frequency f to improve processing efficiency. The system can maximize processing efficiency and heat control effect while ensuring safety.

The present invention belongs to the field of clean energy technology, specifically a heat storage and separation type solid electric heat storage device, including a bottom foundation, an insulation material layer, a heat exchange device, a heat circulation fan, an energy storage body, a support brick body A and several groups of direct heating components, each group of direct heating components includes a support brick body B and a heating unit group. The air is input into the low-temperature air chamber through the heat circulation fan, first passes through the support brick body A, the heating unit and the support brick body B to the high-temperature air chamber B, then passes through the energy storage body to enter the high-temperature air chamber A, and then is discharged from the air inlet end of the heat exchange device. The air that has undergone heat exchange in the heat exchange device returns to the low-temperature air chamber, thereby performing a circulation heat exchange. Compared with the traditional single-energy storage body electric heat storage device, the present invention sets a direct heating component separately from the energy storage body, so that the energy storage body has better heat dissipation and more uniform air mixing. It can perform heat exchange with the air for a long time. While the heat output is stable, its life is also extended and the cost of use is also lower.

A heating device and a method for manufacturing a soldered object that have a relatively simple configuration and that suppress the occurrence of temperature unevenness within an allowable range in both the temperature rising process and the temperature maintaining process are provided. [Solution] The heating device 1 includes a support member 18 that supports an object to be heated, and a heater 20 that heats the object to be heated supported by the support member 18 or the support member 18 that supports the object to be heated. The heater 20 has multiple annular heating elements 20P, each with a different circumferential length and arranged in a nested configuration, and is capable of outputting different amounts of heat from one another, and the amount of heat output is changeable. A method for manufacturing a solder-joined object using the heating device 1 includes supplying the object to be heated to the support member 18, causing the heating elements 20P to generate heat and raise the temperature of the object to a first predetermined temperature, changing the output ratio of the heating elements 20P to maintain the first predetermined temperature, supplying a reducing gas, increasing the output of the heating elements 20P to raise the temperature to a second predetermined temperature, and performing solder bonding.

The invention discloses a phase change material for a solar thermal collector and a phase change cavity applying the phase change material, and belongs to the heat storage technology of the solar thermal collector, the phase change material comprises the following components in parts by weight: 55-65 parts of capric acid, 25-35 parts of stearic acid, 7-13 parts of sodium chloride, and expanded graphite accounting for 3%-7% of the total weight of the capric acid, the stearic acid and the sodium chloride, and 0.2%-0.5% of a silane coupling agent. The phase change cavity is provided with a plurality of honeycomb-shaped through holes, space around the honeycomb-shaped through holes is filled with phase change materials, spiral fins are arranged in a part of the through holes, a heat collection panel is fixed at the bottom of the phase change cavity, and the heat collection panel is in contact with the phase change materials and the spiral fins respectively. The self-developed composite phase-change material is high in heat storage density, the heat storage capacity can be remarkably improved, the heat output time can be prolonged, and meanwhile the raw material cost is low; and meanwhile, the heat transfer area is increased through the honeycomb-shaped phase change cavities, the heat transfer rate can be increased through cooperation of the phase change cavities and the spiral fins, and then the overall heat collection and heat output efficiency of the solar heat collector is improved.

The invention relates to a thermal intermediate layer material (1) for providing a heat-conducting path between a heat output component (4) and a cooler (6), comprising: a planar solid foam (2), which is designed in the form of an open foam and which has a plurality of intermediate spaces (20); and a filling material (3) which is arranged in the intermediate space (20) of the solid foam (2) and completely fills the intermediate space (20), the intermediate layer material (1) being deformable in the event of an assembly force in order to enable tolerance compensation between the heat output component (4) and the cooler (6).

The application discloses an assembled pressure-bearing heating system and particularly relates to the technical field of heating, which comprises a container and a pressure-bearing water storage tank, the pressure-bearing water storage tank is installed in the container, a tank water outlet pipe is communicated with one side of the pressure-bearing water storage tank, a water inlet pipe is communicated with the other side of the pressure-bearing water storage tank, a connecting pipe is communicated with one end of the tank water outlet pipe, and a circulating pump for driving the circulation of hot water in the tank to a heating area is installed at the top of the connecting pipe. The water temperature is stably increased to above 100 DEG C, the heating heat output per unit area is greatly improved, the upper limit of the water temperature is broken through under high pressure, the heating area is significantly increased, the heating area of the traditional system with the same power is increased by more than one time, the core problem that the traditional system is difficult to meet the large-area heating demand is effectively solved, a three-stage pressure control mechanism ensures the stable operation of the high-pressure and high-temperature working condition, and the problems of the traditional system, such as the scattered arrangement of equipment, the independent installation of equipment, the large land occupation and the poor assembly adaptability, are solved.

The utility model discloses a heavy load bearing thin oil lubrication circulation structure for vertical pump, including bearing box, the oil storage room has in bearing box, install upper bearing body on bearing box, be provided with transmission sleeve in bearing box and upper bearing body, install deep groove ball bearing between transmission sleeve and upper bearing body, install upper bearing gland on upper bearing body, install spherical roller bearing between transmission sleeve and bearing box, install the shaft in transmission sleeve, install the oil separation sleeve between the shaft and bearing box, the oil separation sleeve has riser portion, set up lower thread structure and upper thread structure on transmission sleeve inner side wall, set up oil injection hole on transmission sleeve, set up pump oil chamber on transmission sleeve inner side wall, and pump oil chamber is located between lower thread structure and upper thread structure. The utility model adopts screw pump power, provides continuous stable thin oil lubrication for bearing, reduces bearing heat output, prolongs bearing service life, cancels radial oil hole, and the size specification of bearing is reduced.

A method includes determining a specified demand over time for thermal energy from a heat exchanger of a heat pump. The heat pump is configured to transfer thermal energy from a geothermal working fluid circulating in a closed loop geothermal well to the heat exchanger. The closed-loop geothermal well includes a first ground wellbore extending from a land surface to a geothermal subsurface; a second surface wellbore extending from the land surface to the geothermal subsurface; and a plurality of connection wellbores connecting the first surface wellbore to the second surface wellbore. The heat output of the heat exchanger is controlled by adjusting at least one of the flow or inlet temperature of geothermal working fluid in the closed loop geothermal well to meet specified requirements.