540results about How to "Reduce heating energy consumption" patented technology

The invention discloses a dynamic climate compensation method for centralized heating. Firstly, the outdoor temperature is predicted, water supply and return temperatures are adjusted some time ahead according to the predicted value of the outdoor temperature, and the hysteresis of pipe network adjustment in the manner that adjustment is performed while sampling is overcome. The outdoor temperature of the next day is predicted according to local historical meteorological data and weather forecast of the meteorological department, and the value is used as basic data for prediction of a thermal load; and then the thermal load is predicted, that is, the thermal load curve of the next day is calculated according to the outdoor temperature. With the method, the outdoor temperature is reasonably predicted so as to realize advanced dynamic adjustment of a climate compensator; heating medium parameters of a heating system are adjusted by the aid of an adjusting model according to the thermal load value set in advance, a heat source is changed from original wide passive heating into active heating, on the premise that the indoor temperature for the user is stable, the operation adjusting indictor of the heating system within the specified time are given in advance, the heating efficiency is improved, and the heating energy consumption is reduced.

The invention relates to a combined type heat exchange unit. The combined type heat exchange unit is characterized in that a compression heat pump, an absorption heat pump, more than one water-water heat exchanger and connecting pipelines are included; the connecting pipelines are divided into the primary side pipeline and the secondary side pipeline; the primary side pipeline is in a step-by-step series connection, namely the primary side pipeline is sequentially communicated with a generator of the absorption heat pump, the water-water heat exchanger, an evaporator of the absorption heat pump and an evaporator of the compression heat pump; the secondary side pipeline is communicated to a heat consumer in the mode of first parallel connection and then series connection or step-by-step series connection or independent separating connection. According to the combined type heat exchange unit, the heat of primary network hot water can be utilized in a gradient mode, so that the temperature difference of water supply and water return of primary network hot water of a centralized heating system is greatly increased. Accordingly, the initial investment of a pipeline system and the power consumption of water pump operation can be greatly reduced, conditions are created for utilizing low-grade heat energy and even waste heat and the like of a power source, the comprehensive energy utilization efficiency of the system is improved, and the heat supply cost is lowered.

A design and control method for the optimizing control system of intermediate rolling mill and heating furnace in order to improve the heating quality of billet in the heating furnace and save energy features that the heating furnace and intermediate rolling mill constitute a closed loop system, the information (rolling force, temp, etc) is fed back to heating furnace for dynamically changing the heating temp, and the optimizing control strategy and control algorithm are used in the billet heating process.

The invention relates to a method for producing mash gas from municipal sludge through dry method anaerobic fermentation, which belongs to the field of solid waste reclamation, and can overcome the difficulties difficult mass transfer, difficult gas overflow and the like caused by dewatered sludge which has high viscosity, no fluidity, no gaps and the like. The method comprises the following steps of: performing biological pre-drying on the dewatered sludge, and stacking the dewatered sludge in an aerobic environment for 2 to 3 days; adding the material after the biological pre-drying into anaerobic granular sludge or biogas residues to perform inoculation, and performing static starting for 6 to 8 days; performing acidogenic fermentation on the material under an aerobic or anaerobic condition, performing spiral band type or anchor type stirring, and adjusting the pH if necessary; performing methanogenesis fermentation on the material after acid production under an anaerobic condition, performing extruding type stirring, keeping the temperature of the material to be 35+/-1 DEG C, and keeping the pH between 6.6 and 7.5; and performing refluxing inoculation on part of the biogas residues, and performing aerobic compost stabilization on the rest of the biogas residues. The method can be used for beneficial utilization of the municipal sludge and the recovery of biomass energy sources, and compared with wet fermentation, the method can save equipment investment and land occupation.

The invention discloses a method for preparing piperazine pyrophosphate. The method is a method A or a method B; in the method A, piperazine sulfate and phosphoric acid are mixed in a molar ratio of 1:1 in a reaction device and the mixture is subjected to dehydration condensation at the temperature of between 150 and 300 DEG C to form the piperazine pyrophosphate; and in the method B, piperazine sulfate and phosphoric acid are subjected to dehydration condensation in a molar ratio of 1:1 at the temperature of between 120 and 260 DEG C in a reaction device in the presence of an inert solvent, wherein the inert solvent has the boiling point of more than or equal to 100 DEG C, and the using amount of the inert solvent is more than three times the total weight of the piperazine sulfate and the phosphoric acid.

The invention discloses a continuous coating production system of sheet substrates. The continuous coating production system comprises a feeding area, a working area and a discharge area, all of which are orderly communicated with each other; the feeding area comprises a sheet feeding table; the working area comprises a plurality of pre-vacuumizing chambers, a first transition chamber, a coating deposition chamber, a quick atmosphere annealing chamber and a plurality of pre-vacuumizing chambers orderly in the coating process flow direction; the discharge area comprises a discharge table; each chamber of the working area is provided with the desired vacuum environment. The continuous coating production system further comprises a transporting device capable of realizing linear transmission; the transporting device penetrates through the whole feeding area, the working area and the discharge area. The continuous coating system has the advantages that the regional continuous film deposition and annealing of a one-layer or multi-layer composite film containing a hot color coating material in the same production line are realized, the production efficiency is obviously improved, and meanwhile, the material loss cost of the material in the off-line annealing process after coating is reduced. Due to unique structural design of the system, the problem of tempering stress loss can be obviously solved; the stress of the tempered glass based smart glass produced by the system is up to the stress standard of the national building energy-saving safety glass, namely greater than or equal to 90Mpa.

The invention relates to a solar energy heating system combined with a sitting and lying appliance, which comprises a sitting and lying appliance, a solar energy collector, an auxiliary heat source, a circulating pump, and correlative pipelines and valves, wherein a sealed inner shell is arranged in the sitting and lying appliance, a phase change heat-accumulating material is filled in the sealed inner shell, a heat exchange pipe is embedded in the phase change heat-accumulating material, the inlet and outlet ends of the heat exchange pipe are provided with valves, the heat exchange pipe is connected with the inlet and outlet valves, the circulating pump and the solar energy collector through a pipeline to form a closed loop, and a heat transfer fluid is filled in the heat exchange pipe. The heat exchange pipe can be a series type coil pipe or a parallel connection coil pipe, and can be arranged in a single layer or a plurality of layers. The sitting and lying appliance has the functions of both a heat accumulator and a heat radiator. The solar energy heating system making use of the solar energy, phase change heat accumulation and the sitting and lying appliance combination is clean, comfortable and safe, and can greatly reduce the area of the heat accumulator to improve the efficiency of the heat accumulator while building a local heat comfortable environment.

The invention discloses a heat pump driving solution moisture regulating and domestic hot water preparing system realizing energy balance. The system is characterized by comprising a heat pump circulating system and a solution moisture regulating system, the heat pump circulating system comprises a frequency-variable compressor, a four-way reversing valve, a solution cooling condenser, a stop valve, a throttling valve and an evaporator, and a water-cooling condenser is introduced to prepare domestic hot water; the solution moisture regulating system comprises a dehumidifier, a regenerator, a solution pump, a solution heat exchanger, a solution valve and a fan. The heat pump driving solution moisture regulating and domestic hot water preparing system combines a solution circulating system, the heat pump system and a domestic water preparing system, and domestic water is prepared by utilizing redundant condensing heat of a refrigerant while solution moisture regulating is realized through driving of a heat pump, so that system energy balance and effective utilization of energy resources are realized, and comprehensive performance of the system is improved.

An energy saving system utilizing neat accumulation of solar energy phase transition to provide complete heat recovery air is featured as utilizing heat collector of solar energy to convert solar energy to be hot water, utilizing phase transition heat accumulation unit to accumulate solar energy and to change solar energy to be heat energy by using hot water as heat media, utilizing air /water heat exchanger to heat air being completely heat- recovered by complete heat-recovery heat exchanger then sending heated air to air-conditioning room.

The invention discloses a waterproof type phase-change heat storing plaster wallboard formed by reinforcing straw fibers. The plaster wallboard is compounded from the following raw materials in percentage by weight: 20-60% of plaster gelate materials, 10-25% of phase-change heat storing microcapsules, 1-7% of a composite water repellent, 25-55% of mineral micro powder, 0.1-0.6% of straw fibers, 0.8-1.5% of a binder, 1-5% of an exciting agent and 0.2-1.5% of a water reducing agent. The preparation method comprises the following steps of: 1) firstly, adding the plaster gelate materials, the mineral micro powder, the straw fibers and the exciting agent into a reaction kettle, adding water, and uniformly stirring the plaster gelate materials, the mineral micro powder, the straw fibers, the exciting agent and the water so as to obtain a material A; 2) sequentially adding the phase-change heat storing microcapsules, the composite water repellent, the binder and the water reducing agent into the reaction kettle, and stirring the material A, the phase-change heat storing microcapsules, the composite water repellent, the binder and the water reducing agent once again so as to obtain a material B; and 3) directly pouring the material B in the reaction kettle into a mold through a grouting pump so as to obtain the phase-change heat storing plaster wallboard, wherein a fiber cement board is arranged on the inner surface of the mold. The waterproof type phase-change heat storing plaster wallboard disclosed by the invention has the advantages of being suitable for operation under humid environment, simple in production technology and environment-friendly.

The invention discloses an automobile body coating method. The automobile body coating method comprises the following steps of white automobile body coating degreasing and phosphating, electrophoreticcoating, electrophoretic drying and cooling, coating of a PVC sealant and anti-stone coating, spraying of damping adhesive, pre-drying and cooling of PVC adhesive, spraying of floating coat, sprayingof finishing coat, spraying of varnish and drying and cooling of the finishing coat. According to the automobile body coating method, medium-low-temperature degreasing is adopted, low-temperature phosphating is adopted for phosphating, and little or no steam heating is used according to room temperature conditions; high solid coat is used, the floating coat and the finishing coat are subjected towet-on-wet coating and then subjected to baking, and the floating coat drying process and the post-grinding process of the floating coat are omitted; through appropriate processes, equipment design and reasonable process parameter setting and monitoring, the coating surface quality state of the automobile body in each process is controlled; and the energy-saving automobile body coating method hasthe low energy consumption and low VOC.

A cold storage method without boiling for reeling silk includes cold storage of fresh cocoon, loading in netted basket, putting in vacuum tank, vacuumizing, hot water osmosis, discharging water and repeating relative steps. Its advantages are high efficiency and high quality.

A continuous quenching line for large-diameter tube and bar materials is provided. Along the moving direction of tube and bar materials, a V-shaped inclined roll transmission continuous heating furnace is connected to an end of an automatic material charging machine; a multifunctional quenching machine is connected to an end of the V-shaped inclined roll transmission continuous heating furnace; the multifunctional quenching machine is connected to an automatic material discharging machine; a water collecting pool is disposed at the lower part of the multifunctional quenching machine; an automatic control system controls the devices from the automatic material charging machine to the automatic material discharging machine; continuous horizontal heat processing of alloy steel, stainless steel, light alloy bar and tube materials with a diameter of 100-800 mm and a length of above 2000 mm (a wall thickness of below 100 mm) can be performed. During the heating and quenching processes, the material both moves forward and performs self-rotation, does not bend or deform, is heated and quenched uniformly, and has a deep quenched layer, and the invention has the functions of performing quenching, solid solution treatment, normalization processing, annealing processing and the like of alloy tool steel tube and bar materials, alloy structure steel tube and bar materials, heat resistant steel tube and bar materials, various stainless steel tube and bar materials, aluminium alloy tube and bar materials, and the like.

The invention relates to a formaldehyde-free bamboo glulam. The bamboo glulam is formed by splicing bamboo splints through radial surfaces and gluing the bamboo splints through tangential surfaces, wherein an adhesive of an adhesive layer arranged for splicing the radial surfaces is a polyvinyl acetate emulsion adhesive (white latex) or aqueous high-molecular isocyanate adhesive (API); and the adhesive of the adhesive layer arranged for gluing the tangential surfaces is the isocyanate adhesive. The invention also provides a method for preparing the bamboo glulam; and the method comprises the following steps of: preparing materials; applying the adhesive to the radial surfaces of the bamboo splints; splicing the tangential surfaces; applying the adhesive to the tangential surfaces of a single-layer bamboo laminated sheet; assembling the tangential surfaces; gluing the tangential surfaces; and performing post-processing and the like, wherein the adhesive used in the step of applying theadhesive to the radial surfaces is the white latex or API; and the adhesive used in the step of applying the adhesive to the tangential surfaces of the single-layer bamboo laminated sheet is the isocyanate adhesive. Due to the adoption of an aldehyde-free adhesive, the amount of the released formaldehyde of the bamboo glulam is below 0.1mg/L, and the gluing performance of the sheet is improved and the machining energy loss is reduced by applying the white latex or the API used in the splicing of the radial surfaces.

The invention discloses a mobile heat-insulating louver and an automatic control method thereof. The louver comprises a window frame and louver blades in the window frame, wherein the louver blades are connected with a louver border covered at the periphery of the louver blades; the two ends of the louver border are connected with fixed rotating shafts, one end of each rotating shaft is connected with a rotating motor, and the other end is connected with a bearing; a shell of the rotating motor and an outer race of the bearing are respectively and fixedly connected with a sliding body; each rotating motor and a sliding motor are respectively connected with the rotating command output end and the sliding command output end of a CPU (central processing unit); the set input end of a calculator is used for inputting a temperature threshold value and a motion threshold value, the signal input end of the calculator is connected with a temperature sensor and a radiation sensor, and the signal output end of the calculator is connected with a controller. The controller is used for receiving calculating results of the calculator and controlling the opening degree, the opening direction, the spreading or the retracting conditions of the louver blades. The invention can strengthen the heat insulating property and the air tightness of an outer window in winter, reduce heat absorbing of the outer window in summer, ensure smooth ventilation and improve the heat insulating performance of houses.

A horizontal forging technology for a middle-sized spline shaft yoke comprises the following steps that firstly, blanking is carried out, the diameter of a blank is 55 mm, the material 40Cr is adopted, and the length of the blank is 295 mm; secondly, upsetting is carried out, the end of the blank is heated, the heating temperature is 1,150 DEG C, the heated blank is a blank to be upset, then, the blank to be upset is placed in a spline shaft yoke cavity of a pre-forging female die of a spline shaft yoke horizontal forging die on a horizontal forging machine, then, a power drive end drives a pre-forging male die to carry out upsetting on the blank to be upset, and a pre-forged piece blank is formed after upsetting is finished; and thirdly, finish forging is carried out, the pre-forged piece blank is taken out and placed in a spline shaft yoke cavity of a finish forging female die of the spline shaft yoke horizontal forging die on the horizontal forging machine, the horizontal forging machine is operated, the power drive end drives a finish forging male die to conduct upset-extruding on the pre-forged piece blank, and a finish forged piece is formed after upset-extruding is finished. According to the horizontal forging technology, the design is reasonable, the structure is simple, the forged piece is easy to form, and the rejection rate of the forged piece is greatly reduced; and the production efficiency is improved, and the production cost and the die manufacturing cost are reduced.