44results about How to "Increase heat supply" patented technology

The invention provides a defrosting control method and system of a heat pump air-conditioning unit. The defrosting control method is used for defrosting multiple pipeline systems of the air-conditioning unit and comprises the following steps: whether pipeline systems meeting defrosting requirements exist is detected, if yes, the quantity of the pipeline systems meeting the defrosting requirements is detected; whether the percentage of the quantity of the pipeline systems meeting the defrosting requirements in the total quantity of the pipeline systems is larger than a preset percentage or not is determined; if yes, the pipeline systems meeting the defrosting requirements are sorted according to total run time of corresponding compressors; and a preset quantity of pipeline systems in the pipeline systems meeting the defrosting requirements are in a defrosting mode, and other pipeline systems are in a heating mode. According to the defrosting control method and system, in the defrosting process, part of the pipeline systems defrost, the other pipeline systems perform heating, so that heating continuity for users is guaranteed, the use comfort of the users is improved, the heating pipeline systems provide heat for the defrosting pipeline systems, and the defrosting efficiency is increased.

The invention discloses a transcritical CO2 compound heat pump and a control method thereof. The transcritical CO2 compound heat pump comprises a CO2 main path compressor, an air cooling-air cooling recombiner, a supercooling-evaporation recombiner, an evaporator and a CO2 auxiliary compressor, wherein the air cooling-air cooling recombiner comprises a CO2 main path, a CO2 auxiliary path and a water path; and the supercooling-evaporation recombiner comprises a CO2 main path supercooling section and a CO2 auxiliary evaporation section. According to the invention, the transcritical CO2 compound heat pump comprises two working modes according to the return water temperature, the application range of a unit is wider, and daily requirements are met; the transcritical CO2 compound heat pump only has one refrigerant and water heat exchanger, and compared with a conventional transcritical CO2 compound heat pump with three water and refrigerant heat exchangers, the transcritical CO2 compound heat pump has the advantages that a circulating water path is a single loop with one inlet and one outlet, the system is simple, and the failure rate is decreased; and an auxiliary loop adopts an inverter compressor, a heat pump water heater system can stably and reliably operate for a long time under the conditions of wider load and temperature, the power consumption is reduced, and the starting current of the compressor can be decreased.

The invention discloses a solar energy and air-source heat pump heating and water heating complementary system and method. The system comprises an air-source heat pump, wherein an indoor unit of the air-source heat pump and an insulation water tank form a closed water path, the indoor unit of the air-source heat pump and a floor heating system form a closed water path, and a solar heat collector is used for supplying heat to the insulation water tank through a heat exchange pipeline II and supplying heat to a heat exchanger and a water receiving tray of an outdoor unit of the air-source heat pump through a heat exchange pipeline I, so as to defrost; a central controller is used for controlling the opening/closing of various electromagnetic valves and setting various temperatures. According to the solar energy and air-source heat pump heating and water heating complementary system and method, disclosed by the invention, the problem that the volume of hot water for living supplied by solar energy in winter and rainy days is insufficient can be solved by an air-source heat pump system, and the heat supply amount and heat efficiency are greatly increased; in addition, heat supplied by the solar energy is used for removing the icing of the heat exchanger and the water receiving tray of the outdoor unit of the air-source heat pump, so that the stable operation of the air-source heat pump is guaranteed.

The invention provides a recycling treatment device and method of waste circuit boards. The recycling treatment device of waste circuit boards mainly comprises a crushing machine, a self-reduction smelting furnace, a Roots blower and an exhaust gas treatment device. The self-reduction smelting furnace is mainly composed of a smelting furnace body, a smelting spray gun, a vertically lifting flue, a cyclone separator and a combustion heat exchange tower, wherein the top of the smelting furnace body is provided with a charging port, a heat preservation gun port and a sampling port; the vertically lifting flue is connected with an inlet of the cyclone separator; an outlet of the cyclone separator is connected with the combustion heat exchange tower; an air heat exchanger is arranged inside the combustion heat exchange tower; and a hot air outlet is formed in the upper portion of the combustion heat exchange tower and connected with a smelting spray gun entering the smelting furnace through a pipeline. Through equipment transformation, process optimization and combination of recycled carbon particles as a reduction agent and recycled high-temperature process gas as heat, the recycling rate of valuable metal is effectively increased, the smoke volume of a system is reduced, energy is saved, and pollution is reduced.

The invention discloses a continuous heating and defrosting air source heat pump control method. Low-voltage protection of a heat pump system is actively shielded during the period of defrosting, andthe low-voltage protection is started after the defrosting period; when any group of outdoor heat exchangers of all outer heat exchangers meets a defrosting condition and enters a defrosting state, acontroller records pre-defrosting opening values of all main electronic expansion valves matched with a first group of outdoor heat exchangers to be defrosted at the same specified time before a four-way valve is switched; the first group of outdoor heat exchangers enters the defrosting state after the four-way valve is switched; and the main electronic expansion valves opening matched with the first group of outdoor heat exchangers is a specified defrosting opening, and remaining main electronic expansion valves are respectively regulate opening according to outlet superheat degree of the outdoor heat exchangers matched with the main electronic expansion valves in the defrosting period of the first group of outdoor heat exchangers. The method is characterized in that heat can be providedin the defrosting, the operation of the heat pump is more stable, the defrosting time can be shortened, and the heating load of the heat pump is improved.

The invention relates to a method for increasing the yield of super-thick material layer sintering. Hot pressing pellets with the alkalinity being the same as that of a sintering mixture are distributed into the sintering mixture, so that ventilation holes are formed in an upper sintering material layer during ignition sintering. The method comprises the steps that 55-70 wt% of iron concentrate and 30-45 wt% of soft coal are fully uniformly mixed, then quick lime is added into the iron concentrate and the soft coal to form a mixture, the binary alkalinity of the mixture is made to be the same as the alkalinity of the sintering mixture, the ratio of CaO to SiO2 is 1.8-2.4, 2-5 wt% of water is added into the mixture, and the mixture is fully stirred and uniformly mixed in a mixer; a uniformly mixed mixture is subjected to hot pressing forming through a ball press machine, wherein the forming pressure is 20-30 MPa, the hot pressing temperature is 350-550 DEG C, the hot pressing time is 8-15 min, and the diameters of obtained hot pressing pellets are 8-12 mm; and the hot pressing pellets are distributed into the sintering mixture layer through a distribution device arranged between a sintering distributor and an ignitor, wherein the amount of the hot pressing pellets distributed into the edge sintering mixture is 1-2.5 times that of the hot pressing pellets distributed into the middle sintering mixture, and the depth of the hot pressing pellets distributed into the sintering material layer is 20-200 mm.

An air supply temperature adjusting system provided by the invention comprises an air source, a flow regulating valve, a heating device and a controller; the air source is used for providing to-be-conveyed gas; the flow regulating valve is arranged at an outlet of the gas source and is used for regulating the output flow of the to-be-conveyed gas; the heating device is arranged on a gas path of the to-be-conveyed gas and used for adjusting the temperature of the to-be-conveyed gas; and the controller is used for adjusting the opening degree of the flow adjusting valve and the output power of the heating device according to the obtained temperature of the to-be-conveyed gas, so that the gas in a ready state meets the requirement of gas equipment on the gas temperature. The heating device can carry out heating on the gas output from the flow regulating valve, and heating is carried out on the to-be-conveyed gas according to the opening degree of the flow regulating valve and the output power of the heating device, so that the gas in the ready state meets the requirement of the gas equipment on the gas temperature. According to an adjusting method, a computer readable storage medium and electronic equipment, adjusting can be carried out on the gas flow and the temperature required by the gas equipment by means of the air supply adjusting system.

The invention relates to a combined heat and power generation system and method provided with an absorption heat pump. The combined heat and power generation system comprises a steam turbine, a heater, a deaerator and the absorption heat pump. The steam turbine is communicated with the heater through a steam extraction pipeline, the absorption heat pump comprises an absorber, a generator and a condenser, heat supply network return water in a heat supply network loop is firstly input into a condenser heat exchanger to be heated for the first time, and then the heat supply network return water heated for the first time is input into an absorber heat exchanger to be heated for the second time to reach the temperature of heat supply network water supply. The absorber steam extraction valve and the generator steam extraction valve are adjusting valves and can adjust the amount of steam input into the absorber and the generator. When the heat supply amount needs to be adjusted, the temperature of the solution in the absorber can be changed by directly changing the steam extraction amount of the steam extraction valve of the absorber, the temperature of the heat supply network water supply output from the heat exchanger of the absorber is changed, and the heat supply amount is increased or reduced.

The invention provides a deep geothermal well structure and a transformation method for a waste geothermal well. The deep geothermal well structure comprises a deep geothermal well body and a heat exchanger, wherein the deep geothermal well body comprises the waste geothermal well, and a plugging layer is arranged on the inner wall of the waste geothermal well; the heat exchanger is arranged in the length direction of the deep geothermal well body, a gap is reserved between the heat exchanger and the inner wall of the deep geothermal well body to enable an annular channel to be formed betweenthe heat exchanger and the deep geothermal well body, a heat exchange medium flows in the annular channel and exchanges heat with rock stratums around the deep geothermal well body, and the heat exchange medium flows into the heat exchanger from the tail end of the heat exchanger so as to be pumped to the ground along the heat exchanger for heating. According to the deep geothermal well structure,an existing waste geothermal well structure is transformed and utilized, the investment is reduced, only heat is collected, water is not collected, the economic value is generated while underground water and the environment are protected, and the unit investment heat taking amount of the geothermal heating technology and the geothermal heating economy are improved.

The invention provides a high-low pressure cylinder cutting thermoelectric decoupling mode and system based on exhaust steam built-in group injection, and belongs to the technical field of combined heat and power generation and centralized heating. A combined heat and power generation system is provided with an injection decoupling device for high-low pressure cylinder cutting, wherein a high-pressure driving steam inlet of an external high-pressure cylinder cutting injector is connected with a new steam pipe; a low-pressure inlet is connected with a high-pressure cylinder exhaust steam cold re-heating pipe; a medium-pressure exhaust steam port is connected with a boiler reheater inlet; a hot re-heating pipe is provided with a steam extraction port; a built-in low-pressure group injectionpipe bundle is arranged in an exhaust steam communicating pipe between a low-pressure cylinder and a condenser; a high-pressure driving steam inlet of the built-in low-pressure group injection pipe bundle communicates with a hot re-heating steam extraction port or a medium-pressure exhaust steam port; a low-pressure inlet is opened in the exhaust steam communicating pipe; medium-pressure exhaust steam is arranged in a front area of an exhaust steam inlet of the condenser; and a cooling water inlet and a cooling water outlet of the condenser communicate with a heat supply network return water inlet pipe and a heat supply network return water outlet pipe correspondingly and achieve heat supply network return water heating. According to the high-low pressure cylinder cutting thermoelectric decoupling mode and system based on exhaust steam built-in group injection, the near-full load heat supply and power generation adjusting capacity of a steam turbine can be achieved, the cold end loss is eliminated, and the thermal power operation flexibility is improved.

The invention discloses a built-in single-section circulating multilayer drying kiln. The built-in single-section circulating multilayer drying kiln comprises a kiln body, a heat supply main pipe and a moisture removal main pipe, wherein the inner side wall of the kiln body is covered with a heat preservation layer, a plurality of conveying rollers are arranged in the kiln body, a heat supply lower branch pipe and a heat supply upper branch pipe are arranged on and below each conveying roller correspondingly, a bidirectional draught fan is installed at the top of the kiln body, an air outlet of the draught fan is formed inside the kiln body and is connected to a heat supply side pipe extending to the side wall of the kiln body, the heat supply lower branch pipe and the heat supply upper branch pipe are both connected to the heat supply side pipe, a heat preservation partition plate is further arranged in the kiln body, a partition space is formed between the heat preservation partition plate and the upper wall of the kiln body, and an air inlet of the draught fan is formed in the partition space. According to the built-in single-section circulating multilayer drying kiln, ceramic tiles on the conveying rollers can be quickly dried, meanwhile, it can be guaranteed that the temperature of the transverse section of the kiln is consistent, moisture heat energy can be further released again after moisture matches with heat supply gas to be sucked into the draught fan, and the heat preservation effect of the heat preservation layer match, so that the purposes of saving energy and reducing consumption are achieved.

The invention relates to an automatic control water bath evaporation unit which is characterized in that a heating cavity is internally provided with a plurality of heating inlets and heating outlets, the plurality of heating inlets are respectively connected with an outlet of a heater, the plurality of heating outlets are respectively connected with a backflow port, a first temperature controller and a second temperature controller are arranged between the outlet of the heater and the plurality of heating inlets of the heating cavity and between the plurality of heating outlets and the backflow port respectively; the first temperature controller and the second temperature controller are both connected with a PLC (programmable logic controller) module, the heater is connected with the PLC module, and the PLC controls the starting and stopping of the heater. The beneficial effects are as follows: the PLC module is used to monitor in real time the temperature of a medium entering the heating cavity and flowing out of the heating cavity so as to turn on and turn off the heater, so that the heating stability of the heating cavity is guaranteed, energy sources are also saved at the same time, the medium is more uniformly distributed due to the plurality of heating inlets and outlets in the heating cavity, and a dead area is prevented from being produced in the heating cavity, so that the heating effect is much more balanced, the coefficient of heat conduction is increased, and the concentration benefit is improved.

A flexible radiating end comprises a radiator and a refrigerant/heat medium pipe; wherein the refrigerant/heat medium pipe is in direct or indirect contact with the radiator. The flexible radiating end structure of the invention can make the installation and configuration of the radiation end of the traditional radiation type air conditioner more convenient and reasonable, can be arranged at any position according to the need, reduces or avoids the possibility of dew condensation, and improves the comfort. The flexible radiating end structure of the invention can be made into a curtain, formedinto a projection curtain, and can be used for furniture and the like.

The invention puts forward a sludge drying ground heating device, which comprises a hot water pipe and a return pipe which are arranged at two sides of the drying ground. Steel radiators and PE heating pipes are connected between the hot water pipe at one side and the return pipe at the other side. The steel radiators are arranged within the drying ground of the upstream section during the sludge drying process. The PE heating pipes are arranged within the drying ground of the downstream section during the sludge drying process. In allusion to the characteristic that moisture evaporation velocity changes with sludge moisture content during the sludge drying process, the steel radiators are paved below sludge with high moisture content. By the utilization of the steel radiators' characteristic of high heat conductivity coefficient, supply of heat for sludge with high moisture content is increased, and evaporation of moisture is promoted. The PE heating pipes are paved below sludge with high moisture content. Loss of heat can be reduced under the precondition of satisfying heat supply.

The invention provides a combined cooling, heating and power waste incineration waste heat utilization device and method. The combined cooling, heating and power waste incineration waste heat utilization device comprises a waste incinerator, wherein the waste incinerator is provided with a household waste inlet and an air inlet; the waste incinerator is provided with a high-temperature flue gas outlet and a high-temperature slag outlet, and the high-temperature slag outlet and the high-temperature flue gas outlet are both connected to a steam Rankine cycle system; a low-temperature gas outlet formed in the steam Rankine cycle system is connected with a gas inlet of an organic Rankine cycle system; a waste heat outlet of the steam Rankine cycle system and a waste heat outlet of the organic Rankine cycle system are further connected with a heat exchange unit used for conducting heat exchange on heat supply network return water; and a low-temperature gas outlet of the heat exchange unit is connected with refrigeration equipment. According to the invention, heat in slag and flue gas at the bottom of the incinerator of the waste incineration power plant is recycled through a multi-stage heat recycling unit, then power is generated through the steam Rankine cycle and the organic Rankine cycle, and the output power of the waste incineration power plant is improved.