55results about How to "Raise the dew point temperature" patented technology

The invention relates to a synergic-purification all-heat-recovery combined heat and power generation system which comprises a heat power plant waste heat utilization system and a heating station, wherein the heat power plant waste heat utilization system is connected with the heating station through a heat supply network return water supply pipeline; and the heat power plant waste heat utilization system comprises an air humidifier, a gas-water thermal tower, a water-to-water heat exchanger, an absorption heat pump, a steam-to-water heat exchanger and a steam condenser. In the heat power plant, the air is humidified to enhance the dew-point temperature of flue gas; the return water temperature is further lowered in the heating station, so that the heat supply network return water is lowered to 10 DEG C and even lower; and the two measures are integrated to recover all the flue gas waste heat and dead steam waste head. Meanwhile, a dosing port is arranged on a flue gas waste heat recovery spray water path, so that the flue gas is cleaned in the waste heat recovery process, thereby achieving favorable denitrification effects. The acidic condensation water is neutralized to achieve the discharge standard, thereby integrating the functions of waste heat recovery and flue gas purification. The synergic-purification all-heat-recovery combined heat and power generation system is suitable for combustible gas heat power plants, biomass heat power plants and the like, and can be further popularized to coal-burning heat power plants and boilers.

The invention provides a forced circulation hot water system with a self-power-outage-protection function. The provided hot water system mainly comprises a water return collection box, a water-cooling wall lower collection box, a water-cooling wall hearth, a water-cooling wall upper collection box, a drum, an economizer and recirculation pipes. The hearth is used as a low-temperature heating surface. The economizer is used as a high-temperature heating face for heat supply. According to the water circulation flow in a boiler, water flows to the water-cooling wall lower collection box from the water return collection box, enters the water-cooling wall upper collection box, flows to the drum, flows into the economizer from the drum and finally flows out of an outlet of the economizer. In addition, the first recirculation pipe and the second recirculation pipe are arranged; and when power outage happens to the hot water boiler, the water circulation between the drum and the water return collection box and the water circulation between the drum and the economizer are converted into to relatively independent natural circulation loops, the water flow direction of the normal work condition is kept, accidents caused by the fact that working media in a water-cooling wall of the hearth and a pipeline in the economizer are heated and vaporized are prevented, the self-power-outage-protection function of the hot water system of the hot water boiler is achieved, and the low-temperature corrosion to the heating surface is also effectively avoided.

The invention provides an air compressing water generator which comprises a bottom plate, a first compressing device, an air inlet device, a second compressing device, a condensing device, an air cylinder device and a filtering device. The bottom plate is provided with a collecting frame, a first supporting rod, a second supporting rod, a first sway rod, a first support and a second support. The first compressing device comprises a first air cylinder, a first pushing rod, a first compressing box, a first pushing plate, a first sealing ring, a first pushing ring, a first spring, a second spring and a first fixing rack. The air inlet device comprises an air inlet pipe, a fan, a first filter screen, a first sponge block and a third support. The second compressing device comprises a second air cylinder, a second pushing rod, a second compressing box, a second pushing plate and a second sealing ring. The second pushing plate is located on a third fixing rack below the second fixing rack. The condensing device comprises a condensing box, a condensing plate, a first pipeline and a fourth support. Vapor in air is converted into liquid water, efficiency is high, the conversion rate is large, and water resources in the air can be utilized fully.

The invention relates to a deep-recovery device for boiler flue gas waste heat. The deep-recovery device is characterized by comprising a boiler, a steam-water heat exchanger, a water-water heat exchanger and an N grades of flue-air total-heat exchange units, and each flue-air total-heat exchange unit comprises a flue-water heat exchanger and an air-water heat exchanger, wherein N is greater than or equal to 2. Compared with an existing recovery device for flue gas waste heat, the deep-recovery device has the advantages that the N grades of flue-air total-heat exchange units or a flue-water heat exchanger with N-1 liquid distribution units and an air-water heat exchanger with N-1 water pans are arranged, total-heat exchange of flue and air which are equivalent in temperature grade is performed respectively, temperature in flue outlet can be lowered by regulating spray water at all grades, temperature in the air outlet is raised, a flux matching state is achieved, problems about nonlinearity of a water steam saturation line and the like are solved, total-heat exchange efficiency of the flue and the air is remarkably improved, and the deep-recovery device is widely applicable to recovery devices of the boiler flue gas waste heat.

The invention provides a device and a system for white smoke elimination, emission reduction and deep waste heat recovery for coal-fired flue gas, and relates to the energy field. The device comprisesa flue gas desulfurization unit, a flue gas waste heat recovery unit, a flue gas-air total heat exchange unit and a flue gas white smoke elimination unit. Through the arrangement for the flue gas-airtotal heat exchange unit, flue gas waste heat is recovered, and the moisture content of combustion-supporting air is increased, so that the dew point temperature of the flue gas is increased; throughthe arrangement for the flue gas waste heat recovery unit and the flue gas white smoke elimination unit, vapor in the flue gas is condensed and recovered, and finally the moisture content of flue gasemission is lowered, and the generation of white smoke is reduced; the humidification degree of air is increased, a combustion temperature can be lowered, and the emission of NOx and SO2 is reduced;the technical problems that lots of flue gas waste heat is wasted and the phenomenon of white smoke is generated, in the prior art, are alleviated; and a natural cold source of outdoor air in winter is utilized as a main cooling and dehumidification source, mutual coupling in mechanism and mutual supplement are achieved, and the effect of integrating the functions of desulfurization, nitrogen reduction, waste heat recovery, white smoke elimination and the like is realized.

The invention discloses a self-heat recuperation wood drying system and method and belongs to the field of energy sources and power. The wood drying system comprises a drying tank (1), a compressor (2), a heating coil (3), a heat exchanger (4), a first gas-liquid separator (5), an expander (6), a condenser (7), a second gas-liquid separator (8) and a draught fan (9). According to the self-heat recuperation wood drying system, the dew point temperature of humid air at a drying outlet (11) is increased through compressing of the compressor (2), and latent heat of water vapor in dried air is recycled in an indirect heat exchange mode; evaporation of moisture in wood is accelerated in a wood-air direct heat exchange mode, and then consumed energy of the compressor compressing dry air in the humid air is recycled through acting of the expander; through the process, the heat absorbed in the drying process is transferred back to air in the drying tank so that self-heat recuperation at a high level can be formed, the wood drying system only needs to supplement a part of compression work and wasted work of the draught fan, and then operation can be achieved; and energy consumption is low, pollution is avoided, and the drying speed is high.

The invention relates to a flue gas waste heat deep recovery system. The flue gas waste heat deep recovery system comprises a vertical type thin-walled hollow barrel-shaped shell, a rotating core which is disposed coaxially on the upper part of the shell and can rotate relative to the self central axis, a separation plate which is arranged in the shell and passes through the central axis of the shell and the rotating core, a plurality of baffles, a spraying device and a plate heat exchanger connected to a water inlet and a water outlet of a heat releasing unit and a spraying device; the rotating core is in a vertical type thin-walled hollow barrel shape, the longitudinal section of the side wall of the rotating core is in a honeycomb shape, and the rotating core is filled with a hygroscopic material; the separation plate divides the inner space of the shell and the rotating core into two parts of an air flow passage and a flue gas flow passage; the multiple baffles are separately disposed between the top of the shell and the top of the rotating core, between the top, on one side of the flue gas flow passage, of the rotating core and the top of the partition plate, between the bottom, on one side of the air flow passage, of the rotating core and the baffles and between the bottom, on one side of the flue gas flow passage, of the rotating core and the shell; and the spraying device is disposed in the flue gas flow passage in the lower part of the shell.

The invention discloses a smoke waste heat recovery and hot water white smoke elimination system and a working method thereof. The system comprises an evaporator and a heater, the evaporator and the heater are embedded in a flue, the heater is arranged above the evaporator, a refrigerant outflow side port of the evaporator is connected with a refrigerant inflow side port of a compressor, a refrigerant outflow side port of the compressor is connected with a refrigerant inflow side port of a condenser, a refrigerant outflow side port of the condenser is connected with a refrigerant inflow side port of the evaporator, a white smoke eliminating hot water outflow side port of the heater is connected with a circulating hot water inflow side port of the condenser, and a circulating hot water outflow side port of the condenser is connected with a white smoke eliminating hot water inflow side port of the heater. According to the system, the evaporator is in direct contact with the smoke so that sensible heat and latent heat in the smoke are recycled; and the temperature of the cooled and dehumidified smoke is increased through the heater, the dew point temperature of the smoke is increased, the white smoke eliminating effect is achieved, and the combustion efficiency of a gas-fired boiler is effectively improved.

The invention discloses a nonferrous smelting flue gas adiabatic evaporation cooling acid washing arsenic removal purification system and method, and the system comprises a factory, an adiabatic evaporator, an acid liquid spray tower, a rotary dust remover, a demister, a plate-and-frame filter press, an inclined plate sedimentation separator, a liquid heat exchanger, a sinter plate dust remover, a water spray tower and a waste collection pool. A carbon steel flue is arranged between the exhaust end of the factory and the air inlet end of the adiabatic evaporator, the air outlet end of the adiabatic evaporator is connected with the air inlet end of the rotary dust remover through a pipeline, and the waste end of the rotary dust remover is connected with the feeding end of the waste collecting pool through a pipeline. The air outlet end of the rotary dust remover is connected with the air inlet end of the acid liquor spray tower through a pneumatic pump and a pipeline, and the air outlet end of the acid liquor spray tower is connected with the air inlet end of the demister through a pneumatic pump and a pipeline. The problems that in the prior art, the traditional flue gas arsenic removal process is tedious, and the operation cost is high are solved. The system and the method have the advantages of simple steps, low cost and the like.

The invention discloses a combined type pressurization dehumidification system, and belongs to the field of air conditioning equipment. The system is composed of a first-stage air compressor, a primary radiator, a second-stage air compressor, a secondary radiator, a heat regenerator A, a condenser, a high-pressure water separator, a first-stage turbine, a second-stage turbine, a rotary dehumidifier, a heat regenerator B, a pressure limiting valve, a fan and a motor. After to-be-treated wet air is subjected to pressure rising and cooling twice, most water vapor in the wet air is condensed into free water. And the water is separated from the wet air through the high-pressure water separator, the treated wet air is subjected to physical adsorption dehumidification through the rotary dehumidifier again to become dry air, and finally the initial temperature and pressure are recovered after being subjected to heat regeneration and pressure relief so that the dry air can be further used. According to the system, a pressurization dehumidification mode is adopted, compared with a traditional cooling dehumidification method, the dehumidification efficiency is higher, and high-dew-point temperature dehumidification can be realized. Meanwhile, in consideration of economical performance, deep dehumidification continues to be conducted through the rotary dehumidifier, and finally the state of the low dew point temperature is achieved. The system can be applied to air dehumidification in large spaces such as a factory buildings in a high-temperature and high-humidity environment.

The invention relates to a system and method for strengthening LNG air-temperature type gasification by utilizing photovoltaic power generation and heat radiation. During the daytime, a high efficiency photovoltaic power generation system transmits current to a heating wire, the heating wire heats superconducting liquid and further heats a base in a heat conducting mode, and the base radiates heatto a gasifier; at night, a storage battery pack transmits current to the heating wire, an electrical heated tube conducts heat to the base, and the base radiates the heat to an LNG air-temperature gasifier; and an energy transfer system is arranged behind a solar back plate in the high efficiency photovoltaic power generation system to transfer waste heat behind the solar back plate to a steel plate, and the steel plate transfers the heat to the LNG air-temperature gasifier in a heat radiation mode. The system uses solar energy and the waste heat at the back of the solar panel to transfer theheat to the gasifier in a photovoltaic power generation and heat radiation mode, the power generation efficiency of the solar panel is improved, the service life of the solar panel is prolonged, thegasification efficiency of the LNG air-temperature gasifier is improved, and the phenomena of frosting and icing on the surface of the gasifier are reduced.

The invention relates to a low-humidity temperature and humidity test box, which comprises a box body, a box door is arranged on the front surface of the box body, a door handle is installed on the box door, a test room is arranged in the front part of the box body, a sample rack is installed in the test room, the box The rear part of the body is equipped with circulating fan blades, steam pipes, heaters, and evaporators in sequence from top to bottom. On the outer top, the steam pipe is connected to the humidifying boiler, the inlet end of the evaporator is connected to the condenser through a pipe, a filter is arranged between the evaporator and the condenser, the inlet end of the condenser is connected to the compressor, and the outlet end of the evaporator is respectively passed through a pipe Connect the evaporating pressure regulating valve and the four solenoid valves, and the evaporating pressure regulating valve and the four solenoid valves are set in parallel; the invention realizes that the evaporator will not freeze during long-term operation, and at the same time achieves the effect of saving energy and reducing consumption, and solves the problem that the air in the box is The problem of the effect of drying on the temperature of the laboratory.

The invention provides an anti-condensation control method. The anti-condensation control method comprises the following steps: (S10) an air conditioner is started to operate by a refrigerating mode for first preset time; and at this time, a compressor of the air conditioner is operated by a first operation frequency; (S20) after the air conditioner is operated by the refrigerating mode for the first preset time, a control system controls the compressor to reduce from the first operation frequency to a second operation frequency, and the air conditioner is in an anti-condensation operation mode; and (S30) after the compressor is operated by the anti-condensation operation mode for second preset time, the control system controls the compressor to recover the first operation frequency to solve the problem of easy condensation in an indoor unit of the air conditioner in the prior art.