12results about How to "Lower heating costs" patented technology

The utility model belongs to the technical field of building equipment, and particularly relates to an assembly type green building construction wall which comprises a construction wall body, and installation assemblies are arranged on the two sides of the construction wall body. The mounting assembly comprises a mounting block, and the mounting block is fixedly connected to one side of the construction wall body. According to the utility model, the mounting assembly is arranged, and the mounting block is matched with the mounting groove, so that during mounting, the mounting block of one construction wall body is aligned with the mounting groove of the other construction wall body to be inserted, and then the screw rod, the gasket and the nut are used for fixing. Compared with a complex installation structure of a traditional fabricated construction wall, the design is simpler to operate, common constructors can master the installation method through simple training, dependence on professional technicians is greatly reduced, meanwhile, installation time and labor cost are reduced, construction efficiency is improved, and the construction cost is reduced. And the modern fast-paced building construction requirements can be better met.

The application relates to a power plant heat supply step control method and device based on dynamic matching of energy efficiency, wherein the method comprises the following steps: collecting at least one operation parameter of a power plant; inputting the at least one operation parameter into a preset energy loss online calculation model, calculating the system energy loss distribution of the power plant and the steam extraction energy threshold meeting a preset minimum condition, and outputting energy efficiency matching reference data; based on the energy efficiency matching reference data, constructing a target function of the power plant, calculating a control sequence meeting a preset optimal condition according to the target function, and in response to the control sequence meeting a preset constraint condition, performing step control on the steam extraction regulating valve opening degree, the heat pump frequency, the heat network pump rotating speed, the heat flywheel bypass valve position and the microcapsule bypass valve opening degree of the power plant, so as to generate a heat supply step control result of the power plant. Therefore, the problems of the related art, such as the absence of high-grade energy ladder matching, the large end difference of drainage, the high rigidity and cost of steam extraction regulation, the insufficient system level cooperation and the like, are solved.

The present application belongs to the technical field of combined heat and power generation, and discloses a plant-level combined heat and power generation unit combined heat supply system and an operation method thereof. The plant-level combined heat and power generation unit combined heat supply system comprises a first ejector, a second ejector, a heat storage heat exchanger, a heat storage device, a first ejector heater, an absorption heat pump, a peak heater, a compression heat pump and a basic heater group. In the present application, the heat network water is heated in the basic heater group, the first ejector heater, the absorption heat pump and the peak heater in stages, and then supplied to the outside, so that the heat exchange loss is reduced, the energy utilization efficiency is improved; by adopting the series connection of the basic heater group, the ejector and the heat pump, the low-temperature waste heat is fully utilized, the consumption of high-grade steam is reduced, and the heat supply cost is reduced; by adopting the heat storage technology and the compression heat pump auxiliary heat supply, the heat supply demand can still be met when the power plant participates in the grid peak regulation, and the heat supply capacity and the heat supply flexibility of the power plant are improved.

The application discloses a solar energy coupled electric auxiliary heat supply system and a control method, and relates to the field of heat exchange heat supply.The solar energy coupled electric auxiliary heat supply system comprises a heat storage water tank, a solar energy collector, a primary electric heater and a secondary electric heater; and the control method comprises the following steps: in a valley electricity time period, heat supply is preferentially performed by the solar energy collector, and when the heat supply heat is insufficient, the primary electric heater is started; in a time period before the valley electricity time period ends, meteorological data is predicted and used to calculate the heat supply capacity of the solar energy collector in a next peak electricity time period, and whether the secondary electric heater needs to be started to heat the heat storage water tank is judged according to the heat supply capacity; and in the peak electricity time period, only the solar energy collector is started to perform heat supply.Compared with the prior art, the application has the beneficial effect that the difference between peak electricity price and valley electricity price is fully utilized, and the electric auxiliary heat is not started in the peak electricity time period, so that the heat supply cost of the system is greatly reduced.

The utility model relates to an air separation unit precooling system suitable for a cold region. The air separation unit precooling system comprises an air compressor, a hot water heat exchanger, an air cooling tower and a water cooling tower, an air outlet of the air compressor is communicated with an air inlet of the hot water heat exchanger; an air outlet of the hot water heat exchanger is communicated with an air inlet of the air cooling tower; the hot water heat exchanger is provided with a circulating hot water inlet and outlet communicated with a hot water station; the air cooling tower comprises a cooling water section and a chilled water section, the chilled water section is provided with a chilled water inlet and is communicated with the chilled water outlet of the water cooling tower, the cooling water section is provided with a circulating cooling water inlet, an air inlet of the air cooling tower is arranged below the cooling water section, and an exhaust pipe is arranged at the top end of the air cooling tower; and the chilled water outlet of the water cooling tower is upwards provided with a waste nitrogen inlet and a circulating water supply inlet in sequence. According to the utility model, the power consumption for conveying cooling water of the air cooling tower is reduced, the consumption for heating hot water by using steam in a traditional hot water station is reduced, the heat utilization rate of the whole device is improved, and the operation cost of a factory is effectively reduced.

The utility model relates to the technical field of steam turbine heat supply, and discloses a steam turbine sub-cylinder collaborative cascade heat supply system which comprises a medium-pressure steam conveying pipeline, a medium-pressure cylinder, an industrial steam supply assembly and a coordination assembly. The medium-pressure steam conveying pipeline is connected with a steam inlet of the medium-pressure cylinder; the industrial steam supply assembly comprises a first pipeline, a first valve and an industrial steam supply pipeline; a steam outlet of the medium-pressure cylinder is connected with an industrial steam supply pipeline through a first pipeline, and a first valve is arranged on the first pipeline; the living steam supply unit comprises a first low-pressure cylinder, a second pipeline, a third pipeline, a fourth pipeline, a first valve group, a living steam supply pipeline and a condenser; the coordination assembly comprises a coordination pipeline and a fifth valve; according to the system, various heat supply requirements can be met cooperatively, operation is flexible and efficient, the energy utilization efficiency is improved, and the operation cost is reduced.

The utility model discloses an integrated heating radiator head relates to the field of heating radiator head. Integrated heating radiator head includes: the flow pipe, and the flow pipe is small -bore pipeline, connecting casing, the both ends of symmetry fixed connection in flow pipe, the both sides of connecting casing symmetry have the connector, wherein, connecting casing, connector and flow pipe between through pouring integrated setting, the utility model discloses an integrated pouring forming process, solves the quality and the aesthetic pain point of traditional welding type, and through small -bore flow pipe again, realizes the heating effect optimization of water -saving, speed -up, increase efficiency, on the structural innovation and performance promotion of heating radiator head, has the practical value and market advantage of remarkable.

This invention discloses a waste heat clean heating system and its application method, belonging to the field of heating and waste heat utilization technology. The system integrates a boiler flue gas waste heat recovery unit, a gasification black water waste heat recovery unit, a urea plant waste heat recovery unit, and a dual-loop system for heating and cooling. By using multi-source waste heat, including boiler flue gas, gasification black water, high- and low-temperature urea water, and steam condensate, to heat the heating return water in stages, the collected water drives a lithium bromide chiller unit, achieving dual-use (winter heating and summer cooling). This invention significantly improves the utilization rate of multi-source waste heat, reduces heating and cooling costs, and achieves dual energy savings, carbon reduction, cost reduction, and efficiency improvement.

The application discloses a rotary fluid heating device, both ends of a driving shaft are rotatably connected in a bearing seat, at least one rotating disc is installed in the middle of the driving shaft, a stator sleeve is installed on the driving shaft, the stator sleeve is arranged on the outer circumferential side of the rotating disc, a gap is arranged between the stator and the rotating disc, and the gap forms a closed space, at least one liquid inlet is arranged on one side end cover of the stator, at least one liquid outlet is arranged on the other side end cover of the stator, the liquid inlet and the liquid outlet are communicated with the closed space, and closed fluid is arranged in the closed space. The motor drives the rotor to rotate, part of the fluid in the closed space is converted into high-speed rotating fluid, the kinetic energy is converted into heat energy by using the cavitation phenomenon, the fluid is heated to the required temperature, the device can be used in places requiring hot water and steam-water mixture mixed with water vapor, and the device can also solve the problem that liquid, such as flammable, explosive and toxic liquid, cannot be heated by using open fire and electricity, the pollution emission generated by using fuel heating is eliminated, and the safety and reliability are improved.

The utility model relates to the technical field of heating and ventilation equipment, and discloses a wall-hanging stove radiator convenient to install, which comprises an installation plate and guide grooves arranged on two sides of the surface of the installation plate, and further comprises sliding plates sliding on the inner walls of the guide grooves, one sides of the surfaces of the sliding plates on two sides are bolted with an installation frame, and a radiator is arranged in the installation frame; through the cooperation of the guide groove, the sliding plate, the mounting frame and the transmission mechanism, the flexibility and adaptability of the radiator can be enhanced, the radiator can be connected with a heating pipeline more reasonably and smoothly, the flexibility is beneficial to improving the satisfaction degree and comfort degree of a user, meanwhile, the heating cost is reduced, the energy utilization efficiency is improved, and the energy consumption is reduced. Under the cooperation of the moving plate, the brush and the positioning mechanism, impurities on the surface of the radiator can be removed, heat can be transmitted into a room more smoothly, and therefore the radiating efficiency is improved, the indoor temperature can be kept stable, energy consumption can be reduced, and the heating cost can be reduced.

The utility model discloses a paint constant temperature heating device, including the box, the inside welding of box has installed support, and is equipped with heating pipe on installed support, heating pipe is provided with two groups, the temperature detection probe is installed on the inside wall of one side of box, the temperature controller and control box are installed on the outside of box, the bottom of box is provided with magnetic force stirring subassembly, the both sides of box upper end are all hinged with the apron, the box is built -in baffle and sealing assembly, the contactor, time relay and power module are built -in in control box. Its technical key points are: the mode of water bath heating is used instead of the conventional heating fan heating, because the heat conduction efficiency of water is higher than that of air, the problem of paint low temperature thickening can be effectively solved after using constant temperature heating device, compared with the time consumption and power consumption of air heating, the heating efficiency of water bath heating mode is effectively improved, and then the power consumption is saved, and the paint heating cost is reduced.

The utility model provides a lightweight aggregate calcining device. The lightweight aggregate calcining device comprises a segmented heating furnace body, a waste heat circulating module, a spiral conveyor and a cooling module, the segmented heating furnace body is divided into a preheating section, a main calcining section and a slow cooling section which are connected in sequence through a heat insulation assembly. The preheating section is provided with an electric heating part, the main calcining section is provided with a combustor, and the slow cooling section is provided with a cooling part. The upper portion of the kiln head is communicated with an outlet of the raw material pretreatment device, and a ventilation opening is formed in the lower portion of the kiln head. The kiln tail is connected with an inlet of the screw conveyor, and the screw conveyor is used for conveying the calcined lightweight aggregate to the cooling module for cooling and shaping. The waste heat circulation module comprises a first circulation pipeline arranged between the two heat insulation assemblies and a second circulation pipeline arranged between the slow cooling section and the ventilation opening. According to the utility model, multi-section gradient heating is adopted, so that local over-burning or under-burning is avoided. Heat insulation of all the sections is achieved, high-precision temperature control is achieved, and the stability of the partition temperature and the uniformity of gradient distribution are ensured.