979 results about "Air heating" patented technology

The utility model provides a high-enthalpy pure air heating device which is used for solving the technical problem that according to an existing heating mode, the attributes of incoming flow air and real air are different. The heating device comprises a gas inlet unit, a heating unit and a gas collecting unit, the air inlet unit is connected with the heating unit; the heating unit comprises a shell, and a heat transfer chamber and a combustion chamber which are arranged in the shell; the heat transfer chamber is coaxially installed in the shell, the radial section of the heat transfer chamber is of a circular ring structure, and the combustion chamber is axially installed in the center of the circular ring structure. A plurality of radial channels and axial channels which are mutually independent are arranged in the heat transfer chamber; the two ends of each radial channel communicate with the combustion chamber and the residual gas outlet correspondingly, and the radial channels are used for conveying high-temperature gas. The two ends of each axial channel communicate with the air inlet and the air outlet correspondingly, and the axial channels are used for conveying incoming flow air. And the gas collection unit is used for collecting the high-enthalpy air and transmitting the high-enthalpy air to external test equipment. The device is high in heating speed, and pure high-enthalpy air can be obtained.

The present application relates to air conditioning technology field, specifically relates to a kind of partition regulation formula refrigeration constant temperature and humidity air conditioning unit with air supply system, comprising: unit machine case;Constant temperature air supply structure for temperature regulation for air supply system air supply is equipped in the inside of unit machine case, and the air supply end of constant temperature air supply structure is connected with air duct for wind force transmission;The air duct is installed with constant humidity partition regulation structure for indoor partition regulation air supply in air outlet end.This application, in hot air heating mode, system can effectively deliver hot air to each partition by closing No. 1 and No. 3 electromagnetic valve, realize subarea heating, improve energy utilization efficiency, in cold air refrigeration mode, system is adjusted closed flap and starts compressor, so that cold air is delivered to each partition after refrigeration cycle, also realize subarea refrigeration, exhaust air and dust mode can extract indoor peculiar smell and dust, improve indoor air quality.

The invention discloses an air preheating biomass boiler, belongs to the technical field of boilers, and aims to solve the problems of low combustion efficiency, insufficient flue gas waste heat utilization and particulate matter emission of a traditional biomass boiler. Function optimization is achieved through a main body structure composed of a furnace body, a charging barrel and a rotating pipe, a double-spiral-disc heat exchange assembly is arranged in the charging barrel, biomass fuel is preheated through boiler exhaust smoke waste heat, meanwhile, smoke is discharged through exhaust holes after being distributed through spiral disc gas storage cavities, and unburned particles are filtered by a biomass layer and carried to a hearth to be subjected to secondary combustion; an air inlet cavity is formed in the rotating pipe, and air is preheated through the fixed pipe and the first connecting pipe and then input into the hearth. The exhaust assembly adopts a sliding rod and sealing block matched structure, and a convex block mechanism driven by a rotating pipe drives the sealing block to periodically move, so that gas in the charging barrel is intermittently exhausted through a double-layer filter screen. According to the boiler, the heat efficiency is improved through a smoke-air two-way preheating and particulate matter secondary combustion mechanism, and the biomass preheating, air heating and emission treatment process is optimized.

The invention relates to an energy-saving method for automatic adjustment and use of flue gas waste heat recovery of a garbage power plant, and solves the technical problems that an existing garbage incineration power plant is low in garbage incineration efficiency, the temperature of discharged flue gas is high, and heat of acid flue gas cannot be effectively utilized. A flue gas heat exchanger is arranged from the outlet of the bag-type dust collector to the middle section of the chimney for gas-water heat exchange, and sensible heat in flue gas is extracted to generate heat medium water; 2, the heating medium water is conveyed to a heat exchange unit through a pipeline, and temperature rising and heating of the deoxygenated water are achieved; and 3, the heat medium water subjected to heat exchange and cooling continues to provide heat for the air heating system, and primary air entering the garbage incinerator is heated or hot air entering the garbage bin is heated. The device can be widely applied to waste incineration occasions of waste incineration power plants.

The invention provides a double-rotor direct-drive coaxial reverse-propeller electric ducted fan, which is characterized in that a single motor with an inner rotor and an outer rotor directly drives two pairs of blades, an intermediate transmission device and an inner rotor excitation group to generate a rotating magnetic field, and a first-stage propulsion component and a second-stage propulsion component with the same rotational inertia are driven under the action of electromagnetic torque with the same acting force and counter-acting force; one-way rotation deflection torque is balanced, and coaxial reverse propeller movement is achieved; the rectification duct reduces the induced resistance of the blades and improves the propulsive efficiency, the convergence and expansion guide sleeve and the motor frame body dissipate heat to form circulating heat dissipation of the Brayton heat engine, meanwhile, air is heated, expanded and ejected out to generate thrust, the efficiency is high, and the thrust is large. The dual-rotor motor direct-driven coaxial reverse propeller ducted fan propulsion unit is simple in mechanism, light in structure, large in power-to-weight ratio, high in reliability, beneficial to use in a narrow space and vertical take-off and landing, especially suitable for an EVTOL (electric vertical take-off and landing aircraft), and capable of promoting popularization of small aircrafts and vertical take-off and landing urban transportation carriers.

The utility model relates to the technical field of desulfurization devices, in particular to a desulfurization digester dust removal system with a fluidizing air heating device, which comprises a digester main body internally provided with a cloth bag dust removal device, and the upper part of the digester main body conveys gas back to an absorption tower through a dust remover exhaust fan and a pipeline. The fluidization air pipeline is provided with a fluidization fan for providing fluidization air, the fluidization air pipeline extends into the digester main body and faces the bag-type dust removal device, and a steam heater for heating the fluidization air is arranged on the fluidization air pipeline. According to the utility model, the cloth bag dust removal device in the digester is heated and fluidized by utilizing the heated fluidizing air, and the water vapor content is reduced, so that the problems of cloth bag hardening and water vapor condensation generated in the operation process of the digester are solved.

The invention provides a compressed air and waste heat coupled energy storage hydrogen fuel cell cold start system, which is characterized in that a compressed air storage tank, an air heating pipeline and a humidifier are connected to form a heated air supply branch, and the heated air supply branch is communicated with an air inlet of an electric pile; the hydrogen storage bottle and the hydrogen heating pipeline are connected to form a heating hydrogen supply branch which is communicated with the hydrogen inlet of the electric pile; a cooling liquid outlet of the galvanic pile is communicated with the cooling liquid heat exchange pipeline, an outlet of the cooling liquid heat exchange pipeline is communicated with a cooling liquid inlet of the galvanic pile through a cooling liquid preheating branch, a cooling liquid circulating pump is arranged on the cooling liquid preheating branch, and the cooling liquid heat exchange pipeline exchanges heat with a heat storage medium; the heat storage device is used for storing waste heat of the pile cooling liquid in a heat storage medium or preheating the cooling liquid under the cold start working condition. Cathode air heating supply, anode hydrogen heating supply and galvanic pile preheating through cooling liquid under the cold start condition are achieved, and the advantages of being low in cold start energy consumption and fast in start response are achieved.

The utility model discloses a metal pipe ink jet drying device which comprises a fan, an air heating box and a drying pipe, the drying pipe comprises a straight pipe, an air inlet pipe opening and an air return pipe opening are formed in the two ends of the outer wall of the circumference of the straight pipe, and an air outlet of the air heating box is connected with the air inlet pipe opening through an air inlet pipeline. An air inlet of the fan is connected with the air return pipe orifice through an air return pipeline, and the fan is connected with the air heating box through a pipeline; an annular step groove A is formed in the initial end of the circumferential inner wall of the straight pipe, an air blowing guide sleeve is fixedly embedded in the annular step groove A, the inner side end of the air blowing guide sleeve is a conical necking opening, a conical annular air guiding cavity is formed between the conical necking opening of the air blowing guide sleeve and the annular step groove A of the straight pipe, and a blowing circular seam is formed between the tail end of the conical necking opening and the step face of the annular step groove A; the air inlet pipe opening is formed in the position of the conical annular air guide cavity; the air inlet pipeline is also connected with an airflow heating pipe; the drying device has the advantages of low energy consumption, high drying efficiency, improved production efficiency and the like.

The invention discloses a calcination and afterburning integrated coal gangue decarbonization device. The coal gangue decarbonization device comprises a shell, a multi-channel pulverized coal combustion gun and a secondary air heating combustor, an air reversing cavity, a combustion cavity and a calcination cavity which are sequentially communicated in the gas flowing direction are formed in the shell, the air reversing cavity is provided with a secondary combustion-supporting air inlet, the combustion cavity is provided with a primary air inlet and a tertiary combustion-supporting air inlet, and the calcination cavity is provided with a coal gangue feeding port. The multi-channel pulverized coal combustion gun is inserted into the primary air inlet, and the secondary air heating combustor is arranged close to the secondary combustion-supporting air inlet. The structure of the coal gangue calcining device is simplified, the problems of material cost, air leakage, heat loss and the like of external equipment and pipelines are reduced, and the construction and operation cost of the coal gangue calcining device is reduced. Meanwhile, through the hot air chamber furnace structure adapting to fine powder combustion and the high-temperature secondary air heating process design, the problems that the low-heating-value coal gangue is difficult to ignite and the heat value cannot be released are solved, and suspension calcination of the low-heating-value coal gangue is achieved.

The invention provides a cold region tunnel portal air curtain heat preservation system utilizing geothermal energy, comprising: a geothermal energy heat extraction device, the geothermal energy heat extraction device comprises a heat extraction drill hole arranged in the middle section surrounding rock of a tunnel and a heat extraction pipe arranged in the heat extraction drill hole, and the heat extraction pipe is internally provided with a heat extraction medium; the arc-shaped air curtain unit is provided with air curtain machines which are uniformly arranged in the circumferential direction of the inner side of the tunnel portal lining; the ground source heat pump is used for providing heat energy for the air heating cavity by taking geothermal energy as a heat source; clean and green geothermal energy and the air curtain technology are combined to achieve long-term prevention of cold damage to the tunnel portal in the cold region, the geothermal energy is transferred to the tunnel portal, a hot air curtain wall is formed at the portal through the air curtain technology, cold energy outside the tunnel is prevented from being transferred into the tunnel, and safety and no influence on driving installation are achieved.

The invention belongs to the technical field of carbon fiber pre-oxidation furnace heating, and particularly relates to the technical field of combustion methods of waste or low-grade fuel, in particular to a pre-oxidation furnace hot air heating method and system coupled with heat recovery. According to the method, fresh air to enter the pre-oxidation furnace is divided into two parts, one path of fresh air is mixed with return air of circulating air in the previous technological process of the pre-oxidation furnace after being subjected to gradient heating for multiple times, third gradient heating is carried out, fourth gradient heating is carried out through a heat conduction oil heater, and secondary gradient heating is carried out; and then another path of fresh air which is heated for one time and not mixed is introduced, the fresh air is mixed with the mixed air heated to the temperature higher than the process temperature again, and after the process temperature is reached, the mixed air is fed into the pre-oxidation furnace. And by controlling the flow of the newly introduced fresh air, the effect of accurately controlling the temperature of the mixed air at the process temperature is achieved.

The invention, which relates to the technical field of photovoltaic facilities, discloses an anti-snow-accumulation photovoltaic support comprising a base, a supporting plate, a rotating shaft, a rotating plate, a photovoltaic panel body, an electric control mechanism, an adjusting mechanism and the like. When a blowing fan rotates, outside air enters an electric control box through air inlet holes, a sponge plate removes moisture in the air, an electric heating wire heats the air into hot air, the hot air is blown into a rolling cylinder through an air blowing pipe, the hot air is evenly blown out of a ventilation groove through the rotating rolling cylinder, accumulated snow on the surface of a photovoltaic panel body is rapidly melted through the hot air, and the surface of the photovoltaic panel body is protected. The cleaning efficiency is improved; the inclination angle of the rotating plate is adjusted, so that the inclination angle of the photovoltaic panel body is adjusted, the photovoltaic panel can receive light better, and the adaptability is improved; the heat generated by the heating wire can be conveniently blocked, and the problem of damage caused by rapid temperature rise of the power supply, the central control machine and the Bluetooth module due to the heat is prevented.

The invention discloses a convex tube type heating core body of an air heating PTC electric heater of a new energy automobile, and relates to the technical field of heating cores, and the convex tube type heating core body comprises a composite device. According to the convex tube type heating core body of the air-heating PTC electric heater of the new energy automobile, through the design of a composite device, the heating core body is arranged in the bearing mechanism, the heating core body is fixed through the bearing mechanism, follow-up operation is facilitated, shaking in the operation process is avoided, the follow-up operation is prevented from being affected, the bearing mechanism drives a square sliding block to slide on the inner side of a sliding groove, and the heating core body is fixed. The grating covers are arranged on the two sides of the composite shell, the effect of preventing impurities from entering is achieved through the grating covers, dust entering and adsorbed to components is reduced, excessive accumulation of the impurities after long-time operation is prevented, and the situation that the operation effect of the heating core is affected is avoided; and meanwhile, airflow penetrates through the heating core body from the grating covers, so that efficient heating and heat transfer are achieved, and the operation requirements of parts are met.

The invention discloses a coal mine underground roadway air defogging method and system, the method comprises the steps of air cooling, air heating and air exhausting, humid air is cooled to be below the dew point temperature through a low-temperature heat exchange device, water vapor is separated out, and then the humid air is heated through a high-temperature heat exchange device to recover to the normal working temperature of a roadway; and finally discharging through a fan and a filtering device. The system comprises a low-temperature heat exchange device, a high-temperature heat exchange device, a compressor, a throttle valve, a fan, a filter device, a control device and a remote controller which form a closed refrigeration cycle system. By combining refrigeration dehumidification and heating temperature returning, efficient demisting of damp air in a roadway is achieved, dust is effectively removed through the filtering device, and secondary haze is prevented. The system can automatically adjust operation parameters according to the humidity of the roadway, has the advantages of being energy-saving, efficient, high in adaptability and the like, remarkably improves the underground operation environment, and improves the production safety and the health level of miners.

The utility model discloses an experimental tree shrew breeding observation box with a noise reduction structure, which comprises a horizontally placed support base, a protective cover corresponding to the support base is arranged above the support base, an observation window is fixedly arranged on the outer surface of the front side of the protective cover, a lower baffle is fixedly arranged on the upper surface of the support base, and a noise reduction structure is arranged on the lower baffle. The lower end of the protective cover and the lower baffle are mutually clamped, a ventilation net is fixedly installed on the surface of the front side of the lower baffle, a feeder and a water feeding trough which are fixedly installed on the supporting base are arranged on the inner side of the lower baffle, and a light supplementing lamp is fixedly installed on the inner wall of the upper end of the protective cover. According to the experimental tree shrew breeding observation box with the silencing structure, a novel structural design is adopted, air is conveyed into the movable box through an air inlet pump by utilizing a connecting pipe, the air is heated by utilizing an electric heater in the movable box and then conveyed into a protective cover, and the purpose of adjusting the temperature is achieved by matching with a temperature sensor; therefore, different environment conditions can be simulated.

The invention provides a processing method of a thick plush fabric, and relates to the technical field of textiles. The processing method of the thick plush fabric sequentially comprises the working procedures of weaving, dyeing, post-shaping and napping finishing, and is characterized in that after the working procedure of weaving and before the working procedure of dyeing, an air heating penetrating and beating working procedure is adopted to replace a traditional pre-shaping working procedure; the specific process of the air heating penetrating and flapping procedure is that the fabric is subjected to penetrating and flapping effects of high-speed hot air flow with the flow speed being 30-70 m / s in a loose or low-tension state, and meanwhile the environment temperature is maintained to be 90-170 DEG C. The method can effectively improve the bulkiness, softness and non-deformability of the finished product.

The utility model relates to the technical field of transformers, in particular to a moisture-proof transformer. Comprising a shell assembly, a ventilation assembly, a drying assembly and a mounting assembly, the shell assembly comprises an outer shell and a transformer body, the ventilation assembly comprises a ventilation box, a dustproof plate and a drying plate, the drying assembly comprises a cooling plate, the mounting assembly comprises a mounting bottom plate, and the outer wall of the cooling plate is connected with a heat insulation layer. The end, away from the cooling plate, of the heat insulation layer is connected with a heating piece, the top of the mounting bottom plate is connected with a side plate, and one end of the side plate is connected with a heating rod and a condensation plate. After the fan is started to run, air is filtered by the dustproof plate and then flows to the drying plates, then the air is treated by the two drying plates and then flows into the outer shell, moisture in the air is absorbed by drying the air flowing into the outer shell, and then the air heating effect of the heating rods and the heating pieces is improved.

The utility model discloses a slag powder production line waste heat recycling device which comprises a vertical mill, a hot blast stove and a finished product tank, a conveying device is arranged between a discharging port of the vertical mill and a feeding port of the finished product tank, a heat exchange pipe is arranged in the finished product tank, the top end of the heat exchange pipe is communicated with an air inlet pipe, and a heat preservation shell is arranged on the outer side of the vertical mill. A heat conduction plate is arranged on the inner side of the heat preservation shell, a heating cavity is formed in the heat preservation shell, the tail end of the heat exchange pipe communicates with an air supply pipe, one end of the air supply pipe penetrates and extends out of the finished product tank to communicate with the heating cavity, a fixing support is installed below the hot blast stove, and a fixing fan is installed on the fixing support. An air guide pipe is communicated between the air inlet end of the fixed fan and the heating cavity, and an air supply pipe is communicated between the air outlet end of the fixed fan and the hot blast stove. The hot blast stove has the advantages that double heating is achieved, waste heat can be fully utilized, the air heating efficiency is improved, and the energy consumption of the hot blast stove is reduced.

The present application relates to rewarming device technical field, a kind of limbs explosive wound rewarming device for alpine region, comprising: support plate;Two first grooves;Two first receiving grooves, first receiving groove is equipped with first air bag block;Two second grooves;Second receiving groove, second receiving groove is equipped with second air bag block;Blowing heater;Air supply pipe;Heat preservation cover, the bottom of the front side wall of heat preservation cover is equipped with arc-shaped gap, and the front end of heat preservation cover is hinged with the front end of support plate.The present application when in use, the wounded can lie on support plate after washing wound, by heat preservation cover, the entire body is covered, blowing heater is heated after air is sent to first air bag block and second air bag block by air supply pipe, first air bag block and second air bag block can blow warm wind to the limbs of the wounded, even in alpine region, the body temperature of the wounded can be kept normal, rewarming operation is carried out in the way of the wounded to hospital.

The utility model discloses a pet padding wood fiber smashing and cleaning device, and belongs to the technical field of pet supplies. The utility model discloses a pet padding wood fiber smashing and cleaning device which comprises a smashing bin and a dust removal bin, the smashing bin is provided with a plurality of bidirectional rotating cutter sets for fully cutting and smashing materials, and a dust removal brush is arranged in an interlayer of the dust removal bin for cleaning a dust removal barrel and further filtering dust. And a material pushing plate is arranged in the dust removal bin to scatter materials. The dust removal brush and the air bin are arranged outside the dust removal barrel, and dust in the dust removal inner barrel is adsorbed into the air bin to be recycled. When the crushed materials are wet, the air heating equipment is started to heat and dry the materials at low temperature, it is ensured that the padding is dry and free of mould or peculiar smell, dust can be effectively reduced, and meanwhile dryness and sanitation of the padding are ensured.

The utility model relates to the technical field of garbage bin heating, in particular to a garbage bin hot air heating coil pipe which comprises a coil pipe body, a shell, a sliding groove, a sliding block, a filter plate, a spring, an abutting block, a rotating shaft, a limiting ring, a rotating sleeve, blades and transverse plates. The bottom ends of the two compression springs are fixedly connected with right-angle rods, the surfaces of the two right-angle rods are rotationally sleeved with dust sticking rollers, and check rings are detachably and fixedly installed at one ends of the two right-angle rods and used for limiting the dust sticking rollers; by means of the arranged filtering mechanism, air can be filtered, dirt in the coil pipe is reduced, the working efficiency of the coil pipe is improved, and the problems that in the prior art, when a garbage bin hot air coil pipe runs, external air can be sucked in, and impurities in the external air are prone to being accumulated and blocked in the coil pipe are solved.

The utility model discloses a silica gel product drying device which comprises a silica gel product drying device body, a mixing pipe is fixedly installed on the top of the silica gel product drying device body, a transmission assembly is arranged on the left side of the mixing pipe, a drying assembly is arranged in the mixing pipe, and a heating box is fixedly connected to the back face of a support. According to the silica gel particle drying device, silica gel particles are placed in the mixing pipe, the heating wire and the fan are started, the fan blows air to the interior of the heating box, after being heated, air is conveyed into the hollow pipe through the pipeline and then discharged through the air spraying plate and the through opening, uniform drying can be conducted, meanwhile, a user starts the motor, and the drying efficiency is improved. The motor drives the hollow pipe to rotate, the hollow pipe rotates to drive the air injection plate to conduct mixing, the silica gel product drying equipment body achieves the uniform drying effect, an existing air blowing drying mode is replaced, and therefore uniform air blowing drying is achieved, and the phenomenon of drying dead corners is not prone to occurring.

This invention discloses a logic control method for a pneumatic ash conveying system. It is used to monitor and control particulate matter generated by a boiler during the pneumatic ash conveying process. In this process, hot compressed air is heated by an electric heater and then sent into the hopper pump through an ash hopper gasification pipe. This ensures the fluidity of the particulate matter in the ash hopper, facilitating smooth ash removal. Simultaneously, a make-up air valve automatically opens when the pressure in the ash conveying pipe gradually increases to a set opening pressure value, and automatically closes when the conveying pressure is lower than the opening pressure of the make-up air valve. This saves compressed air consumption, improves energy efficiency, reduces overload operation of pipelines and equipment, helps reduce the risk of equipment wear and damage, extends the system's service life, and reduces maintenance and replacement costs.

The invention provides a third-stage compression heat recovery device of a compressed air energy storage power station. The third-stage compression heat recovery device comprises a third compressor, a third-stage cooler, an underground gas storage, a gas storage outlet air heating heater, a first-stage expansion gas-water heat exchanger and a first-stage expansion gas molten salt heat exchanger which are sequentially connected according to the air flowing sequence. In the compression process of the first-stage expansion machine, compression heat after a third-stage compressor is stored in a heat storage tank, in the expansion process, the temperature of compressed air at an outlet of an underground gas storage is increased to the designed temperature through heat stored in the heat storage tank, and then the compressed air is heated through a subsequent first-stage expansion gas-water heat exchanger and a first-stage expansion gas-molten salt heat exchanger; and the air inlet temperature requirement of the expander is met. Compression heat of the third-stage compressor is used for heating air at the outlet of the air storage, the compression heat of the third-stage compressor is reasonably utilized, waste of the heat is avoided, the technical problem that the temperature of the air at the outlet of the underground air storage of the compressed air energy storage power station is too low is solved, and the stability of a subsequent heat storage and exchange system and the power generation efficiency of an expansion machine are ensured.

The utility model relates to the technical field of drying, in particular to a metal powder drying device which comprises a drying charging barrel and a device cover set, the device cover set covers the upper end of the drying charging barrel in a sealing mode, an air inlet pipe is fixedly installed on the lower left side of the drying charging barrel and externally connected with an air heating device, and a pressure relief valve set is fixedly installed on the upper right side of the drying charging barrel. A motor is fixedly installed at the upper end of the device cover set. When the metal powder drying device is used, warm airflow supplies heat to metal powder through the annular cavity and the inclined channel by the aid of the heating device connected into the air inlet pipe, steam in the metal powder is ensured to be evaporated, and the pressure relief valve group is opened for pressure relief to finish drying.

An aerosol-forming device configured to removably receive an aerosol-forming article (20) including an aerosol-forming substrate (23), the aerosol-forming article having a substantially rectangular parallelepiped shape defining two opposing main faces, the device comprising a heating chamber for removably and at least partially receiving the aerosol-forming article, the heating chamber defining an insertion direction and a convective air heater assembly arranged upstream of the heating chamber, the convective air heater including a resistive heater element (71) extending therein, the convective air heater being in fluidic connection with the heating chamber, wherein the convective air heater assembly includes two air heating channels (73) leading from each side of the aerosol-forming device to a central air channel, the central air channel leading fluidically to an air inlet of the aerosol-forming article, wherein the resistive heater element extends through the two air heating channels.

The invention discloses a coal-fired unit power generation system with peak shaving capacity and a peak shaving method, and belongs to the technical field of thermal power generation. The system comprises a coal-fired power generation subsystem, a fused salt heat storage subsystem and a primary air heating subsystem; the coal-fired power generation subsystem comprises a boiler and a steam turbine generator set; the fused salt heat storage subsystem comprises a fused salt steam heat exchanger, a high-temperature fused salt tank, a low-temperature fused salt tank and a fused salt water supply heat exchanger; the primary air heating subsystem comprises a steam air heat exchanger. The peak shaving method comprises the steps that when the coal-fired unit power generation system operates at a low load or reduces the load, main steam exchanges heat with low-temperature fused salt, and part of heat is stored; steam at an outlet of the fused salt steam heat exchanger exchanges heat through the steam-air heat exchanger to reheat primary hot air of the boiler; when the load of the coal-fired unit power generation system rises, heat is released, and feed water is heated through the fused salt feed water heat exchanger. The peak regulation depth of the unit is greatly increased by extracting steam and storing heat and increasing the primary air temperature, and the output and combustion state of the low-load coal mill is improved.

The utility model relates to the technical field of heater, concretely is a kind of heater with intelligent temperature control system, including installation platform and intelligent heater, be equipped with intelligent control module on the intelligent heater, be equipped with heat preservation box on the installation platform, air external mechanism and temperature detection mechanism are equipped on the heat preservation box, heating groove is set up in one side of the heat preservation box, the intelligent heater is located in the heating groove and is equipped with locking mechanism between the installation platform, heating assembly is equipped between the inside of the intelligent heater and the heat preservation box, this structure passes through intelligent control module, system can automatically adjust heating power according to the data of temperature detection mechanism, realize the accurate control to air heating temperature, adopt annular heating tube and conical plate on first heating plate and second heating plate, promote air to flow up by air hole staggered, to increase the contact area and time of air and heating assembly, can guarantee air to be heated evenly.

The utility model discloses a multistage hot air circulation device for titanium concentrate drying, which belongs to the technical field of mineral drying, and is characterized by comprising a working box, the right side of the working box is fixedly connected with a drying mechanism, the left side of the working box is fixedly connected with a circulation mechanism, and the front side of the working box is rotatably connected with a heat insulation door. The drying mechanism feeds hot air from the top and the bottom of the working box through the air inlet pipe and the air expanding hopper, multi-stage hot air heating is achieved, the titanium concentrate can be evenly heated in the working box, the drying uniformity and efficiency are improved, the drying mechanism can be automatically controlled through the PLC, and according to the characteristics and drying requirements of the titanium concentrate, the drying efficiency is improved. The working state of the hot air generator is adjusted, intelligent drying is achieved, the drying quality and the production efficiency are improved, the circulating mechanism can lead out hot air in the working box, the hot air is sent back into the working box after moisture absorption treatment, hot air recycling is achieved, and the energy utilization rate is increased.

The utility model relates to river sand production equipment technical field especially is a kind of river sand cleaning dewatering screening device, including screening bucket support assembly, screening bucket subassembly and dehydration drying assembly, in the utility model, by the rotating gas delivery shaft, stirring rod, air heater, gas delivery disc, exhaust box and exhaust nozzle being set, the device can make screening bucket body vibrate by vibration motor, river sand is stirred by stirring rod, air is heated by air heater simultaneously, hot air is shunted by gas delivery disc and rotating gas delivery shaft, hot air is discharged by exhaust box and exhaust nozzle, river sand is dried and dewatered by the hot air of circulating flow, both can make river sand that is agglomerated due to dampness fast dry, improve the speed of river sand screening, also can make the river sand that originally is accumulated together to dry is dispersed to different screen plate and is constantly turned over, improve the speed of drying and dewatering, this mode is shorter in time, and efficiency is higher.