35results about How to "Guaranteed heating demand" patented technology

The invention relates a mixed water heat supply system, in particular to an intelligent energy-saving mixed water heat supply method. In the invention, developed from a system adopting the conventional valve throttling distribution, a corresponding intelligent energy-saving mixed water heat supply system consists of a mixed water station intelligent balance monitoring subsystem, a computer centralized monitoring center, a video monitoring subsystem and a secondary network intelligent balance and energy-conservation monitoring subsystem; and the operation optimization and energy conservation of the entire mixed water heat supply system are realized by the excellent cooperation of the four subsystems.

The invention discloses a heating-power system joint economic scheduling method by using heating network energy storage features. Influences of heating network energy storage on a thermoelectric unitare analyzed; constraints when the heating network keeps safe and stable operation after the thermoelectric unit changes a heating supply extraction flow are determined; according to specific reasonsfor wind curtailment generation by a power system containing a high proportion of thermoelectric units, a heating-power system two-stage scheduling policy considering the heating network energy storage is made; the system safety risk cost caused by wind power uncertainty is calculated; and a heating-power system joint economic scheduling model in consideration of heating network heat storage and wind power uncertainty cost and with the minimum wind curtailment amount as a target is built; and a fast particle swarm optimization algorithm is adopted to solve the model. The method of the invention can improve the peaking capability of the thermoelectric unit, the two-stage thermoelectric unit scheduling policy is adopted according to the specific wind curtailment reasons of the system in theheating supply stage, and system wind curtailment is thus reduced; and during the thermoelectric unit scheduling process, the wind power uncertainty is quantified as the risk cost and is added to a scheduling objective function, and the system operation cost and the risk can be coordinated.

The invention provides a heat pump air-conditioning system and a control method. The heat pump air-conditioning system comprises a compressor (1), an inner unit heat exchanger (2), an outer unit heatexchanger (3), a throttling gear (4), a refrigerant circulation loop for connecting the compressor (1), the inner unit heat exchanger (2), the outer unit heat exchanger (3) and the throttling gear (4)in series and a heat storage module (5) arranged in the refrigerant circulation loop, the heat storage module (5) is used for heating heat from a refrigerant in the refrigerant circulation loop and storing the heat when needed, and the refrigerant in the refrigerant circulation loop is heated by the heat storage module (5) when defrosting of the outer unit heat exchanger is needed. By means of the heat pump air-conditioning system and the control method, when the indoor heat load is low, redundant heat of the system can be stored to be used for defrosting, the heat is released through the heat storage module for defrosting in the defrosting process, indoor heating can be continuously carried out, the room temperature can be kept unchanged, and the room comfort is improved.

The invention relates to a distributed hot pump group control-based contact line power layered synergic stabilization strategy of an electric heating microgrid. A distributed heat storage water tank group matched with a distributed hot pump group in the electric heating microgrid is classified to management of the electric heating microgrid, a contact line original power PTL0 is obtained by measuring regenerative energy and load power in the microgrid, a power control target PTar is analyzed, the contribution of a storage battery and the hot pump group is adjusted according to the contributionof the regenerative energy and real time information of a user load and by combining energy storage state information of the storage battery and the heat storage water tank with regard to the acquired fluctuation power Pflu, so that the contact line fluctuation power stabilization of the electric heating microgrid is achieved. By taking synergic control of the storage battery and the hot pump group as a core, the matched heat storage resource of an air source hot pump is fully utilized, the heat supply requirement of each hot pump on a user is ensured as well as the power smoothness of the contact line is completed, the medium-frequency fluctuation stabilization is effectively participated by power adjustment of the hot pump, and the implementation cost of an optimization scheme is reduced.

The invention relates to the technical field of heat pumps, and discloses a cascade heat pump control method and system. The cascade heat pump control method comprises a heating mode, the heating mode comprises the steps that the precision preset value of the target parameter is obtained, the ideal temperature value T_set of the used side fluid is set, taking the current detected ambient temperature value as a recording ambient temperature value Tr_air; calculating a set parameter value of the target parameter according to the ideal temperature value T_set and the recorded ambient temperature value Tr_air; detecting a real-time parameter value of the working medium in the evaporative condenser, and calculating a parameter difference value between the real-time parameter value and the set parameter value; and adjusting the high-temperature stage compressor and or the operation frequency of the low-temperature stage compressor until the parameter difference value is smaller than or equal to the precision preset value. By means of the cascade heat pump control method and system, the use side fluid temperature can reach 80 DEG c to 140 DEG c, and a more energy-saving and environment-friendly technical solution is provided for the high-temperature heating requirements in the industrial field.

The invention discloses a long-distance heat supply pipe network operation heat storage adjusting method, which relates to the technical field of urban long-distance heat supply, and comprises the following steps: collecting structure size information and operation data of a pipe network, and cleaning the data; establishing a theoretical model of energy conservation, establishing a heat storage model, establishing an artificial intelligence model of energy conservation, verifying the obtained water supply temperature of the first station, establishing a resistance characteristic model, judging whether the current total resistance of the pipeline meets the requirement or not, establishing a numerical model of pressure characteristics, and judging whether the numerical model of the current pressure characteristics meets the requirement or not. And the water supply temperature for heat storage is output. The operation method is simple, the workload of operators is relieved, the heat transfer efficiency is high, the heat supply comfort of users is guaranteed, it is guaranteed that the long-distance heat supply pipe network prevents water hammers, and conveying energy consumption is reduced.

The pipe network heat storage system comprises a heat supply pipe network, the heat supply pipe network comprises a heat supply network initial station, a heating station, a circulating water pump, a primary network water return pipe and a primary network water supply pipe, and a heat supply network water bypass is installed between the primary network water supply pipe and the primary network water return pipe; an adjusting assembly is arranged on the heat supply network water bypass and used for adjusting the flow and pressure of heat supply network water flowing through the heat supply network water bypass, and the heat storage and heat release functions are achieved through an existing heat supply network. For a cogeneration heat supply system, the heat storage capacity of an existing huge heat supply pipe network is fully utilized to increase the peak regulation capacity of a cogeneration unit, and the huge investment cost of a newly-built energy storage device is saved.

The invention discloses an intelligent balance heat supply system and relates to the technical field of heat supply regulation. The intelligent balance heat supply system comprises a heat supply system body and is established on the basis that the heat supply system body comprises a heat exchange station, a unit and a household which are correspondingly transformed, an intelligent heat supply management platform is built on the basis of the intelligent balance heat supply system, and a control valve additionally arranged for transforming the heat exchange station in the heat supply system body further comprises a connecting pipe fitting. According to the intelligent balance heat supply system, a remote metering water meter is additionally arranged on the basis of thermal control measuring equipment of an original heat exchange station, in order to more conveniently observe and grasp the real-time dynamic water replenishing change condition of the system, electric unit balance valves are additionally arranged in all unit buildings of a heat supply community, the heat supply requirements of residents with poor heat supply conditions are met by adjusting the flow quantity, other residents also can be made not to be oversupplied, the overall heat supply efficiency is guaranteed, the number and the operation frequency of circulating pumps are dynamically adjusted according to the actual requirements of the community, and the intelligent balance heat supply system is used for improving the service management level and the technical guarantee.

The present invention discloses a heat pump appliance including a refrigerant circuit operable in a plurality of modes to transfer heat between an exterior atmosphere and an interior atmosphere via arefrigerant. The refrigerant circuit includes a compressor for compressing the refrigerant, a first heat exchanger for transferring heat between the refrigerant and the interior atmosphere, a throttling device for lowering the pressure of the refrigerant, and a second heat exchanger for transferring heat between the refrigerant and the exterior atmosphere. Wherein, the first heat exchanger operates as a condenser to cool the refrigerant in a heating mode and operates as an evaporator to vaporize the refrigerant in a cooling mode, the second heat exchanger operates as an evaporator in the heating mode. The appliance further includes a third heat exchanger connected in the refrigerant circuit and positioned near the second heat exchanger. The third heat exchanger is selectively hydraulicallycommunicated with the first heat exchanger for transferring heat released by the refrigerant at the first heat exchanger to the refrigerant at the third heat exchanger in a defrosting mode, thereby pre-heating the refrigerant entering the second heat exchanger. In this way, the heat energy condensed in the first heat exchanger can be partially used to defrost the coil-type second heat exchanger,so there is no need to reverse the refrigerant cycle in the defrosting mode. Accordingly, heating demands of users can be ensured on defrosting, moreover, the freezing risk of the interior plate-to-plate heat exchanger can be reduced, furthermore, the noise generated in reversing of the refrigerant cycle can be avoided.

The invention relates to the technical field of photovoltaic photo-thermal and heat pump equipment, in particular to a PVT light storage photo-thermal type water source heat pump system and an operation method.The PVT light storage photo-thermal type water source heat pump system comprises a plurality of PVT systems, a plurality of photovoltaic direct drive water source heat pump units and a plurality of users; the PVT system is connected with the photovoltaic direct-drive water source heat pump unit in series or in parallel, the photovoltaic direct-drive water source heat pump unit is connected with a user water pipeline, and the PVT system comprises a photovoltaic solar panel and a heat collector arranged behind the photovoltaic solar panel. Compared with the prior art, the PVT system and the water source heat pump system adopt direct-current equipment to realize a photovoltaic direct-current flexible power supply mode, and heat storage type combined heat and power generation optimization of the PVT system and the water source heat pump system ensures the photovoltaic power generation efficiency requirement, improves the heat supply temperature grade, and meets the heat supply parameter requirement and the heat supply quantity stability.

The invention relates to a method and a system for selecting a location of a regenerative electric boiler to be connected to a distribution network, which is characterized in that the method comprisesthe following steps: determining a heating supply area of the regenerative electric boiler according to the geographical position distribution of a building to be heated; according to the geographical position of the heating area of the regenerative electric boiler, determining the nodes of the distribution network involved in the heating area, and screening the nodes of the distribution network,according to the selected distribution network nodes and the pre-established working characteristic model of regenerative electric boiler, determining the constraint conditions of the multi-objectiveprogramming model for the location selection of regenerative electric boiler, according to the constraint conditions of the heating supply area of the regenerative electric boiler and the multi-objective programming model, solving the multi-objective programming model, obtaining the optimal distribution network node, and completing the location selection of the regenerative electric boiler connecting to the distribution network. The invention can be widely applied in the technical field of distribution network optimization planning.

The invention provides a burner. The burner comprises a combustion chamber, a feeding mechanism, a decoking mechanism and a power assembly, and is simple in overall structure, wherein the feeding mechanism conveys materials to the combustion chamber; the decoking mechanism removes ash residues and coke residues generated in the combustion chamber; the power assembly provides power for the feeding mechanism and the decoking mechanism; the combustion chamber is formed by combining a mounting frame and a combustion plate group formed by a first movable plate, a fixed plate and a second movable plate, a decoking plate does not need to be independently arranged, and the first movable plate and the second movable plate do certain regular movement relative to the fixed plate, so that the dual effects of material adding and decoking can be simultaneously realized; the combustion effect is good, and the decoking effect is good; and the power assembly adopts the combination of a power source, a conveying piece and a connecting rod assembly, and the conveying piece and the decoking rod connected with the connecting rod assembly are synchronously driven by one power source, so that the structure is simple, and implementation is easy. The invention further provides baking equipment, which comprises the burner. According to the baking equipment, the number of accessories is small, the heat supply requirement can be met, and practicability is high.

The invention relates to a gas heat storage oxidation fused salt heat storage peak regulation intelligent control method and system, and belongs to the field of fused salt peak regulation automatic control. The gas heat storage oxidation system comprises a gas heat storage oxidation device, the gas heat storage oxidation device is connected with a first heat supply device, and the gas heat storage oxidation device is further connected with a high-temperature air fused salt heat exchanger; the high-temperature air fused salt heat exchanger is connected with the fused salt device, the fused salt device is connected with the salt storage device, the salt storage device is connected with the fused salt hot air heat exchanger, the fused salt hot air heat exchanger is connected with the second heat supply device, and the gas heat storage oxidation device, the first heat supply device, the high-temperature air fused salt heat exchanger and the second heat supply device are connected with the management control system. The supply quantity of the heat supply system is automatically controlled through the management control system according to specific heat energy demand data of a user, convenience and rapidness are achieved, labor is greatly saved, efficiency is improved, meanwhile, the system treats a large amount of low-concentration gas in a centralized mode, and the dual significance of energy conservation and environment protection is achieved.

The invention provides a coupled power system with geothermal recovery function and its operation method. The system includes a compressed air energy storage unit, a solar photovoltaic photothermal unit, a geothermal well, and a heating unit; the thermal energy of the compressed air is stored in the geothermal well, and the solar energy The photovoltaic photothermal unit converts solar energy into electrical energy and thermal energy respectively, and provides electrical energy and thermal energy for the system respectively. The collected solar thermal energy is used for heating and heating the heat exchange medium in the compressed air energy storage unit; the heating module makes full use of solar energy, To supply heat to the outside, couple the compressed air energy storage with photovoltaic and photothermal systems, avoid the use of heat storage equipment in the compressed air energy storage system, and at the same time make effective use of the compression heat, while restoring the heat in the geothermal well to meet the requirements The current heating demand, realizing the effect of energy storage, heating and recovery of geothermal energy, is conducive to the promotion and application of geothermal utilization and compressed air energy storage technology.

The invention relates to the technical field of soil source heat pumps, and discloses a soil source heat pump energy-saving heat supplementing device which comprises a water storage tank. The bottom of the water storage tank is fixedly connected with a plurality of U-shaped heat exchange pipes arranged front and back, the two ends of each U-shaped heat exchange pipe penetrate and extend into the water storage tank, and the outer side of the horizontal part of each U-shaped heat exchange pipe is sleeved with a heat exchange sheath; every two front-and-back adjacent U-shaped heat exchange pipesare fixedly communicated through a plurality of communicating pipes, the upper end of the water storage tank is fixedly communicated with a water inlet cylinder and a water outlet cylinder, connectingpipes are inserted into the water inlet cylinder and the water outlet cylinder in a sleeved mode, and the upper ends of the two connecting pipes are fixedly communicated with a cold water pipe and ahot water pipe correspondingly; and a pump machine is fixedly arranged on the inner wall of the right side of the water storage tank. According to the soil source heat pump energy-saving heat supplementing device, effective heat supplementing operation can be carried out when a soil heat source is insufficient, and the heat supply requirement of a user is met.

The invention relates to the technical field of biomass boilers, in particular to a small biomass heat supply system for transforming a traditional cooking bench. The small biomass heat supply systemcomprises a cooking bench, a solar thermal collector, a heat radiator and domestic water equipment, wherein the cooking bench comprises a water tank, a hearth and a chimney, a water tank is arranged on the outer wall of the hearth, a partition plate is arranged in the water tank and divides the water tank into an inner water tank and an outer water tank, a water flow channel is formed in the wallsurface of the chimney, water in the water flow channel exchanges heat with smoke in the chimney, an water inlet of the solar thermal collector is connected with the municipal water supply, a water outlet of the solar thermal collector communicates with a water inlet of the inner water tank, and a water outlet of the inner water tank communicates with a water inlet of the heat radiator; and a water inlet of the water flow channel is connected with the municipal water supply, a water outlet of the water flow channel communicates with a water inlet of the outer water tank, a water outlet of theouter water tank communicates with a water inlet end of the domestic water equipment. The inner water tank and the outer water tank are arranged on the outer wall of the hearth, so that hot water canbe provided for heating and hot water for life can be provided as well.