83results about How to "Achieve heat recovery" patented technology

A method for air condition utilizing cold and heat energy of solution combined with refrigeration compressor, which features utilizing the double side cold and heat energy of refrigeration compressor to process air and adjusting temperature, utilizing lithium salt solution to spraying air adjusting air humidity, then utilizing compressor energy condensing a d regenerating diluted solution to complete the process of sterilizing, dust removing and filtering.

The invention provides an air conditioner heat pump hot water unit and a working method thereof, the performance is optimized, waste heat generated by an air conditioning unit can be recycled, and a heat pump principle with high energy efficiency is utilized to produce hot water so as to save energy, protect environment and be favorable for realizing multi-mode and multifunctional control. The air conditioner heat pump hot water unit comprises a control system, an air conditioning outdoor unit, an indoor unit, a water heater and a plurality of refrigerant pipelines connected among the air conditioning outdoor unit, the indoor unit and the water heater, wherein the water heater comprises a water tank, a hot water generator and a water pipe; the air conditioning outdoor unit comprises a compressor, a heat exchanger, a throttling device and a refrigerant pipeline control device, and the compressor, the heat exchanger, the throttling device and the refrigerant pipeline control device are all connected via the refrigerant pipeline; the refrigerant pipeline control device of the air conditioning outdoor unit comprises a four-way valve A, the port 1 of the four-way valve A is connected with the hot water generator via the refrigerant pipeline; and each indoor unit is provided with a four-way valve, and the four-way valve arranged on the indoor unit is connected with the heat exchanger of the indoor unit via the refrigerant pipeline.

The invention discloses a heat storage type combustion device and method for processing dust-containing VOC waste gas. Efficient and energy-saving processing of the high-dust-containing VOC waste gas is finally achieved. The device comprises linked valve assemblies, a heat storage dust removal device, a heat storage chamber, an oxidization combustion chamber, combustors, a waste heat boiler and a quenching absorbing device. The upper portion of the heat storage chamber is provided with the oxidization combustion chamber which is communicated with the heat storage chamber. The lower portion of the heat storage chamber is provided with the heat storage dust removal device. The heat storage chamber is connected with a waste gas pipeline, a reverse blowing pipeline and a smoke pipeline through the linked valve assemblies. The combustors for combustion supporting are arranged on the oxidization combustion chamber. The heat storage chamber comprises a plurality of heat storage bins. The same linked valve assemblies are distributed below the heat storage bins. Efficient and energy-saving process of dust-containing, sulfur-containing, halogen-containing harmful VOC waste gas and large working condition fluctuation can be achieved. The heat recovery rate of 95% or above can be achieved, the removal rate of combustible components and harmful components can reach 99% or above, little NOX is generated, and the device is an ideal scheme for processing high-dust-containing VOC waste gas.

The invention relates to a vertical fresh air fan for heat recovery, comprising a cabinet, wherein an independent fresh air suction area, a secondary fresh air filtering area, a fresh air discharge area, a stale air discharge area, a stale air suction air and a heat exchange area are arranged in the cabinet; a first filter used for filtering outdoor air is inlaid in the fresh air suction area; an electrostatic precipitator and a fresh air fan are inlaid in the secondary fresh air filtering area, wherein the electrostatic precipitator is used for filtering fresh air passing through the first filter again, and the fresh air fan is used for discharging the fresh air passing through the electrostatic precipitator to the fresh air discharge area; a second filter used for carrying out third level of filtering on the fresh air discharged from the fresh air fan is inlaid in the fresh air discharge area; an exhaust fan used for discharging indoor stale air to the outside is inlaid in the stale air discharge area; and a plate heat exchanger used for carrying out energy exchange between the fresh air and / or the stale air is inlaid in the heat exchange area. The fresh air fan is high in filtering efficiency, capable of preventing blockage, large in fresh air inlet space, good in energy saving effect and strong in universality.

A small fresh air fan comprises a machine shell, an old air exhaust system, a fresh air system and a heat exchanger arranged between the old air exhaust system and the fresh air system, wherein the old air exhaust system and the fresh air system are arranged in the machine shell, the old air exhaust system comprises an old air suction area and an old air exhaust area which are separately arranged, the fresh air system comprises a fresh air suction are and a fresh air exhaust area which are separately arranged, a fresh air heat exchange outlet and a fresh air heat exchange inlet are correspondingly formed in the heat exchanger to form a fresh air channel, and an exhaust air heat exchange inlet and an exhaust air heat exchange outlet are correspondingly formed in the heat exchanger to form an exhaust air channel; the average wind velocity of the section of the heat exchanger is 0.7-1.1 m / s, and wind resistance is 90-120 Pa. The small fresh air fan is high in space utilization rate, low in noise, capable of preventing blocking, high in fresh air volume, high in comfort level, good in energy saving effect and high in exhaust efficiency, and high-efficiency operation of the whole machine can be ensured.

The invention relates to a fresh air ventilation system. The fresh air ventilation system comprises a peripheral ventilation pipe, an intermediate ventilation pipe and fans, wherein the intermediate ventilation pipe is arranged in the peripheral ventilation pipe; and the fans are arranged at one end of the peripheral ventilation pipe and one end of the intermediate ventilation pipe, and are used for blasting air and exhausting the air. By the optimized design and the structure provided by the invention, indoor and outdoor two-way ventilation can be realized; heat exchange can be performed on the blast air and the exhaust air through the wall of the intermediate ventilation pipe; heat recovery can be realized; and energy consumption can be reduced.

The invention discloses a clinical stomatology medical apparatus and instrument sterilizing device which comprises a sterilizing box, wherein a sliding frame is arranged in the sterilizing box, a filtering screen box is arranged on the sliding frame, a spraying pipe is arranged at the upper end of the sliding frame, an ultraviolet sterilizing lamp is arranged above the sliding frame, the lower endof the sterilizing box is connected with a steam inlet pump, the steam inlet pump is connected with a steam box, an air outlet connector is arranged at the upper end in the sterilizing box, a condensing and recovering tank is arranged at the rear end of the outer side of the sterilizing box, the two ends of the condensing and recovering tank are of opening structures, the two ends of the condensing and recovering tank are connected with end covers through bolts, the upper end and the lower end of the condensing and recovering tank are respectively connected with a cold water inlet connector and a hot water outlet connector, and a spiral condensing pipe is arranged in the condensing and recovering tank. The sterilizing device disclosed by the invention can quickly clean and sterilize the oral medical apparatuses and instruments, has a good cleaning effect and a good sterilizing effect, can achieve different liquid medicine washing and clean water washing, can achieve steam sterilization and ultraviolet sterilization and can achieve steam condensation and recovery and heat recovery.

The invention relates to a waste heat recycling system of an air compressor, consisting of a heat exchanger, a pipeline, a water pump, a valve, a water storage device, a ball cock and a thermometer. The heated radiating circular medium in a radiator of the air compressor is connected with a heat source inlet of the heat exchanger by the pipeline; a heat source outlet of the heat exchanger is connected with a reflux port of the radiator of the air compressor by the pipeline; a cold water outlet of the heat exchanger is in series connected with the thermometer and then connected with a water inlet of the water storage device; the water storage device is provided with two water outlets; one water outlet is connected with a water inlet of the water pump by the valve; a water outlet of the water pump is sequentially connected with a check valve and the valve; and the valve is connected with a user by the pipeline. The invention has the advantages of scientific and reasonable system construction, and the like, not only can achieve heat recovery, but also has high recovery efficiency, can save large amount of heat sources, and has considerable economic benefits and wide popularization and application values.

The invention relates to a fresh air fan for heat recovery, comprising a cabinet, wherein an independent fresh air suction area, a secondary fresh air filtering area, a fresh air discharge area, a stale air discharge area, a stale air suction air and a heat exchange area are arranged in the cabinet; a first filter used for filtering outdoor air is inlaid in the fresh air suction area; an electrostatic precipitator and a fresh air fan are inlaid in the secondary fresh air filtering area, wherein the electrostatic precipitator is used for filtering fresh air passing through the first filter again, and the fresh air fan is used for discharging the fresh air passing through the electrostatic precipitator to the fresh air discharge area; a second filter used for carrying out third level of filtering on the fresh air discharged from the fresh air fan is inlaid in the fresh air discharge area; an exhaust fan used for discharging indoor stale air to the outside is inlaid in the stale air discharge area; a plate heat exchanger used for carrying out energy exchange between the fresh air and / or the stale air is inlaid in the heat exchange area; and a fresh air bypass area is arranged between the fresh air suction area and the secondary fresh air filtering area, and a bypass valve is arranged in the fresh air bypass area. The fresh air fan is high in filtering efficiency, capable of preventing blockage, large in fresh air inlet space, good in energy saving effect and strong in universality.

Embodiments of the present invention disclose a heat dissipation apparatus and an electronic device. The heat dissipation apparatus comprises a thermoelectric generator, a heat sink and a first element. The heat sink comprises a cold end and a heat end. A first end of the thermoelectric generator is fitted with and connected with the heat end of the heat sink and is used for absorbing heat of the heat end of the heat sink. A second end of the thermoelectric generator is fitted with the cold end of the heat sink so as to form a temperature difference between the second end and the first end. The thermoelectric generator is used for converting the temperature difference between the first end and the second end into a voltage, and outputting the voltage to the first element, so that the first element runs based on the voltage.

The invention discloses a climate-adaptive multifunctional building component. The climate-adaptive multifunctional building component is arranged on an outer window of a building and comprises a plurality of first louvers, a plurality of second louvers, an inflow water pipe and a outflow water pipe; the plurality of first louvers are arranged on the upper portion of the outer window, the plurality of second louvers are arranged on the lower portion of the outer window, the first louvers are arranged horizontally, and the second louvers are arranged vertically; the first louvers and the secondlouvers can rotate and are each of a hollow structure; and a loop is formed among the second louvers, the inflow water pipe, the outflow water pipe and a heat storage water tank. According to the climate-adaptive multifunctional building component, the functions are more diversified, the requirements for ventilation, daylighting and sunshading of the building at all seasons and in different periods of one day can be met, and heat recovery and reuse of solar energy can be achieved; and according to the climate-adaptive multifunctional building component, the indoor environment is improved by making full use of renewable energy sources such as the solar energy and wind energy, and building energy consumption is reduced to the utmost extent.

The invention discloses a blast capacity variable fluorine pump energy-saving type air conditioner and a control method thereof. The air conditioner specifically comprises an air conditioner box body,a fluorine pump system, a refrigerating system, a forced draught blower, a bypass system and an automatic control system, wherein the fluorine pump system and the refrigerating system are arranged inthe air conditioner box body, and the automatic control system is used for controlling the fluorine pump system, the refrigerating system, the forced draught blower and the bypass system to work. According to the blast capacity variable fluorine pump energy-saving type air conditioner and the control method thereof, fluorine pump system and the refrigerating system are used for carrying out cooling and dehumidification and temperature rising and heating on a part of blast capacity, the bypass system is used for carrying out treating the other part of blast capacity, and air is fed through a nozzle; and the fluorine pump system is used for carrying out pre-cooling temperature reduction and pre-heating temperature rising, the load of the refrigerating system is reduced, the power of a fluorine pump is greatly lower than the power consumption of a compressor, and the energy consumption can be reduced. The blast capacity variable fluorine pump energy-saving type air conditioner and the control method thereof are reasonable in design, high in efficiency, capable of saving energy, high in environmental suitability, high in adjusting precision, intelligence degree and safety and stable and reliable in running and conform to the energy saving and environmental protection policy advocated by China, non-blind area precise adjustment of outlet air conditions can be achieved, and a stableand reliable running environment is provided for various application occasions.

The invention discloses a stokehole pulverized coal recovery type recirculating fluidized bed boiler, aiming at providing a stokehole pulverized coal recovery type recirculating fluidized bed boiler which has lower energy consumption and higher recovery efficiency. The stokehole pulverized coal recovery type recirculating fluidized bed boiler comprises a furnace hearth (1), an air inlet chamber (5) and a pulverized coal recovery system, wherein a hopper (2) is arranged at one side of the furnace hearth (1), a smoke discharging channel (11) is arranged at the upper part of the furnace hearth (1), a slag discharging channel (12) is arranged on the lateral wall at the bottom or the lower part of the furnace hearth (1), an air distribution plate (3) is also arranged on the lateral wall at the bottom or the lower part of the furnace hearth (1), a plurality of air hoods (4) are arranged on the air distribution plate (3), and the air inlet chamber (5) is in air communication with the air distribution plate (3) and the air hoods (4); and the pulverized coal recovery system comprises a pulverized coal recoverer (6) and a recovery channel (8), wherein the pulverized coal recoverer (6) is arranged at the upper part of the furnace hearth (1) at the same side of the hopper (2), the pulverized coal recoverer (6) is communicated with the air hoods (4) through the recovery channel (8), and a suction device (7) is arranged on the recovery channel (8). The invention can be widely applied to the field of boilers.

The invention discloses a heat-recovery water source multi-connected air-conditioning system. The heat-recovery water source multi-connected air-conditioning system comprises a first circulating system and a second circulating system, wherein when the system works, a refrigerant in the first circulating system absorbs heat from a first indoor unit and releases the heat to a first heat exchanger, and a refrigerant in the second circulating system absorbs heat from the first heat exchanger and releases the heat to a heat recovery device. According to the technical scheme provided by the embodiment of the invention, the second circulating system is added in the water source multi-connected air-conditioning system to ensure that the useless heat which is transferred to the first heat exchanger by a condensing agent in the first circulating system can be absorbed by the second circulating system and transferred to the heat recovery device for use of users, so that the heat of condensation is prevented from being wasted, the heat recovery is realized, and the utilization ratio of the air-conditioning system is improved.

The invention discloses a forced heat recovery type energy-saving tobacco curing barn which comprises a tobacco loading chamber (1) and a heating chamber (2), wherein the tobacco loading chamber (1) is separated from a heating chamber (2) through a heat insulation wall (13); humidity exhaust outlets (3) communicated with the tobacco loading chamber (1) are formed in two vertex angle positions of the heat insulation wall (13); an air inlet (4) is formed in the heating chamber (2); total heat exchangers (6) are respectively arranged on the humidity exhaust outlets (3) through heat insulating tubes (5) in a connecting manner; a fresh air outlet (61) of each total heat exchanger (6) faces the air inlet (4); fans (7) are respectively arranged on the fresh air outlets (61) and humidity exhaust gas outlets (62) of the total heat exchangers (6). The total heat exchangers are used for performing heat exchange on fresh air and hot humid air exhausted from the humidity exhaust outlets, and preheated fresh air blows towards the air inlet from the fresh air outlets, so that heat recovery of humidity exhaust gases is realized, the loss of heat in the humidity exhaust process is avoided, and electric energy is saved.

The invention relates to a ventilation system applicable to pig houses. The ventilation system comprises a chimney exhaust fan, a central channel, a dedusting and deodorizing heat recovery system, anair inlet pipe, air intake systems and a high-pressure chimney fan. The central channel is arranged at the top end of a pig house. The chimney exhaust fan is mounted at the top of the pig house and communicated with the central channel. The dedusting and deodorizing heat recovery system is arranged at an external end of the pig house. The high-pressure chimney fan is arranged at an external end, provided with the dedusting and deodorizing heat recovery system, of the pig house. One end of the dedusting and deodorizing heat recovery system is communicated with the central channel through the air inlet pipe. The other end of the dedusting and deodorizing heat recovery system is communicated with the high-pressure chimney fan. The air intake systems are arranged on two side walls of the pig house. The ventilation system has the advantages that the dedusting and deodorizing heat recovery system filters out hydrogen sulfide, dust and harmful gases such as ammonia, fresh air entering the pighouse is heated through heat generated by a heat exchange tube set, the illness possibility of pigs is reduced, air pollution is avoided, resources are saved, the environment of the pig house is improved, and heat recovery is realized.

The invention discloses a main body-externally arranged air conditioner. The main body-externally arranged air conditioner comprises a main body installed outside a room, an air tail end device installed in the room and an air connecting channel connecting the main body and the air tail end device; the main body-externally arranged air conditioner comprises two systems of an air processing systemand a refrigerating system; the refrigerating system is completely installed in the main body, and the refrigerating system supplies cooling capacity or heating capacity to the air processing system through an evaporator; and the refrigerating system adopts a single refrigerating mode or a heat pump mode, and the air processing system is composed of three parts of an air processing chamber installed in the main body, the air tail end device, the air connecting channel connecting the air processing chamber and the air tail end device and devices inside the three parts. The main body-externallyarranged air conditioner is simple in structure, reasonable in design, high in safety performance, low in technical requirements for mounting and moving machines, and capable of effectively avoiding the situation that dangerous refrigerants are leaked due to low technical level of mounting personnel.

The invention provides an energy-saving heat pump hot water air conditioner and a working method thereof. A condensing heat exchanger in an outdoor unit is arranged side by side with a heat exchanger, an outdoor ventilator is arranged on one end of the heat exchanger, and the outdoor air firstly passes the condensing heat exchanger and then passes the heat exchanger. The technical scheme of the invention is more energy-saving, the performance is more optimized, the applied environmental temperature range is wider, the waste heat generated by the air conditioner can be fully recycled, and hot water can be generated through the heat pump principle so as to save energy and protect the environment, and the energy-saving heat pump hot water air conditioner can also generate hot water and refrigerate at a higher temperature and generate hot water and refrigerate at a lower temperature to facilitate the realization of multi-mode multifunction control.

The invention discloses a heat supply system of a biomass boiler. A high-position soft water pool supplies water to the boiler, a boiler body is provided with a hot water outlet pipe connected to rooms, and a high-temperature tail gas pipe of the boiler body is connected to an air induction fan; valves are arranged in the rooms for controlling hot water bathing, solenoid valves are additionally arranged and are linked to fan coils for working, and a water return pipe gathers flow and returns; a coupling and a fan shaft of the air induction fan are assembled in a threaded mode, a fan impeller and the fan shaft of the air induction fan are assembled in a threaded mode, and the thread rotation direction is the automatic locking direction along with working and bearing; the fan impeller is in threaded and rigid connection with the fan shaft after pressing a copper-lead torsion composite pad; the coupling and the other end of the fan shaft are connected rigidly through a clamp part. According to the system, heat recovery and purification treatment of tail gas of the boiler are realized, the disassembly and assembly technology of the air induction fan of the boiler is greatly modified, the problems that the air induction fan of the boiler is continuously and automatically locked and is difficult to disassemble under the loading effect due to threaded assembly can be effectively solved, and large boiler fans can be disassembled conveniently and quickly after being locked in a threaded mode.

The invention relates to an improved multi-split system which comprises a compressor, outdoor heat exchangers and indoor heat exchangers. The two outdoor heat exchangers, namely, a heat exchanger I and a heat exchanger II are arranged; the multiple indoor heat exchangers are arranged; the first end of the heat exchanger I is respectively connected to an air suction port of the compressor through an electromagnetic valve I and connected to an exhaust port of the compressor through an electromagnetic valve II; the first end of the heat exchanger II is respectively connected to the air suction port of the compressor through an electromagnetic valve IV and connected to the exhaust port of the compressor through an electromagnetic valve III; the second end of the heat exchanger I and the secondend of the heat exchanger II are mutually connected in parallel so as to be connected to the middle end of each indoor heat exchanger; and the middle ends respectively pass through a heating one-wayvalve and a refrigerating one-way valve so as to be connected to liquid ends and gas ends of the indoor heat exchangers. The improved multi-split system provided by the invention can be used for heating and refrigerating at the same time so as to meet the multi-mode operation requirement of a user, and heat recovery is realized. The energy demand matching problem during small-load operation can befurther solved, and the energy utilization rate is improved.

The invention relates to the related fields of adhesive sticker processes, particularly to a waste gas treatment device for adhesive sticker surface paper production. The device includes a rack, a waste gas treatment box is installed in the rack and is a cylindrical structure, the top of the rack is externally connected to a gas pipeline, a gas conveying pump is mounted on the gas pipeline, a gasinlet hopper is arranged at the top of the waste gas treatment box, the top of the air inlet hopper is connected to a gas conveying end of the gas conveying pump through an air inlet pipe, a heat exchange cavity is disposed on a side edge wall of the waste gas treatment box, a pipeline notch is arranged in the heat exchange cavity, a support frame is installed at the bottom of the rack in a built-in way, a heat exchange pipe is installed on the support frame, the heat exchange pipe is embedded in the pipeline notch in a fit mode, and the heat exchange pipe is a spiral structure and is wound inthe inner cavity of the heat exchange cavity. By means of heat exchange, the device provided by the invention reaches the effects of heat recovery and heat utilization through heat exchange, and thenutilizes neutralization treatment to eliminate harmful substances in waste gas.

The invention discloses a granite wet dust collection type energy-saving coal-fired boiler. A high-temperature exhaust pipe of a boiler body is connected with an induced draft fan through a water-preheating shell-and-tube heat exchanger tube pass and a granite wet dust collector. A high-position soft water pond is preheated by a water-preheating shell-and-tube heat exchanger shell pass and then supplies water to the boiler through a high-pressure pump system. A coupling and a fan shaft of the induced draft fan are assembled in a threaded mode, a fan impeller and the fan shaft of the induced draft fan are also assembled in a threaded mode, and the thread turning direction is the direction for automatic locking along with work and loads. The fan impeller presses a copper-lead torsional composite gasket and then is connected with the fan shaft in a threaded rigid connection mode, and a hoop part enables the coupling and the other end of the fan shaft to be connected in a rigid connection mode. According to the granite wet dust collection type energy-saving coal-fired boiler, heat recovery and purification treatment of boiler exhaust are achieved, more importantly, the disassembling technology of the boiler induced draft fan is greatly improved, the problem that an existing boiler induced draft fan is assembled in a threaded mode, is automatically locked continuously under the action of loads and is not easy to disassemble can be effectively solved, and fans of large boilers can be conveniently disassembled after threaded locking.

The invention discloses a flue gas heat recycling system, and belongs to the technical field of heat recycling. The flue gas heat recycling system comprises a heat exchange wheel (2) which comprises a shell and moisture absorption packing; the shell comprises a regenerating portion (21) and a moisture absorption portion (22), wherein the regenerating portion (21) communicates with a flue gas inlet (1) and is used for bringing away water of the moisture absorption packing through flue gas entering the heat exchange wheel (2), and the moisture absorption portion (22) communicates with a flue gas outlet (4) and is used for absorbing water in the flue gas through the moisture absorption packing and exhausting the flue gas through the flue gas outlet (4); the moisture absorption packing is rotatably arranged in the shell and alternately rotates to the moisture absorption portion (22) and the regenerating portion (21). The flue gas heat recycling system further comprises a condenser (3), one end of the condenser (3) communicates with the regenerating portion (21) to receive the flue gas, and the other end of the condenser (3) communicates with the moisture absorption portion (22) to convey the flue gas and cool the flue gas through cooling water of which the temperature is lower than the dew point temperature of the flue gas entering the condenser (3), so that the water in the flue gas is condensed and drained. According to the flue gas heat recycling system, acidic substances in the flue gas can be removed while flue gas heat is recycled, and the diffusion speed of exhausted flue gas is increased.

The invention discloses a three-combined supply system capable of achieving heat recovery. The three-combined supply system capable of achieving heat recovery comprises a first compressor, a first four-way valve, a first gas-liquid separator, a first evaporator, a first stop valve, a second stop valve, a first throttling component, a third stop valve, a second throttling component, a first economizer, a first heat exchanger, a hot water tank and a first water pump. The first compressor is connected with the first four-way valve. The first four-way valve is connected with the first stop valve. The first stop valve is connected with the first heat exchanger. The first heat exchanger is connected with the first economizer. The first heat exchanger is also connected with the hot water tank. The first economizer is connected with the first throttling component. The first throttling component is connected with the first evaporator. The first evaporator is connected with the first four-way valve. The first four-way valve is connected with the gas-liquid separator. The first gas-liquid separator is connected with the first compressor. According to the three-combined supply system capable of achieving heat recovery, multi-function work such as heat recovery can be achieved; and in addition, the heat exchange speed is high, the performance is stable, the utilization rate is high, and the application range is wide.

The invention belongs to the technical field of gas turbine heat recovery, and discloses a gas turbine heat recovery device. The gas turbine heat recovery device comprises a gas turbine, a waste heathot water boiler, a fan and an exhaust gas emission tower. A smoke exhaust outlet of the gas turbine is connected with a smoke inlet of the waste heat hot water boiler, and a smoke outlet of the wasteheat hot water boiler is connected with an air inlet of the fan. An exhaust outlet is formed in the top of the exhaust gas emission tower, and a recovery region, a spraying region and an exhaust gastreatment region are arranged in the exhaust gas emission tower in sequence from top to bottom. According to the gas turbine heat recovery device, cold water in the waste heat hot water boiler is heated by the waste heat of the exhaust gas of the gas turbine, and therefore heat recovery of the gas turbine is achieved, and the energy saving purpose is achieved. Meanwhile, due to the fact that an alkali liquor pool, a circulating pump and spraying nozzles are arranged, the purpose of removing the acidic gas in the exhaust gas is achieved, the phenomenon that the atmospheric pollution is caused by the exhaust gas is avoided, and the purpose of environmental protection is achieved.

The invention relates to the technical field of heat exchange, in particular to a heat exchange method and structure for fluid and a heat recovery system for waste water. The heat exchange method is characterized in that cold flow and heat flow are separated through a heat exchange dividing wall, the heat exchange dividing wall is of a thin-wall cylinder-shaped structure extending in the axial direction, one of the cold flow and the heat flow continuously rotates around the axis of a cylinder while rising in the axial direction of the cylinder on the inner side of the heat exchange dividing wall, and the other one of the cold flow and the heat flow continuously rotates around the axis of the cylinder while rising in the axial direction of the cylinder. And the other one continuously rotates around the axis of the column body while descending along the axial direction of the column body on the outer side of the heat exchange dividing wall, and exchanges heat through the heat exchange dividing wall. Cold flow and hot flow strengthen heat exchange through reverse convection, and meanwhile two effects are generated through rotating motion, one effect is that the flowing direction of fluid is continuously changed in the circumferential direction, so that turbulent flow is generated, and the heat exchange efficiency is improved; and secondly, the heat exchange stroke of the fluid is prolonged, so that the heat exchange effect is further improved.

The invention relates to a tail gas purification and heat recovery system and method for sludge treatment. The tail gas purification and heat recovery system comprises a first heat exchange flow pathand a second purification and heat exchange flow path and a third gas purification and recovery flow path, ; the first heat exchange flow path comprises a first heat exchanger and a second heat exchanger arranged downstream of the first heat exchanger, and a first heat exchange medium is circulated in the first heat exchange flow path so as to heat treatment gas used for sludge treatment in the first heat exchanger; and the second purification and heat exchange flow path comprises a heat exchange tank containing a second liquid heat exchange medium, the tail gas obtained after sludge treatmentis discharged into the heat exchange tank, is cleaned by a second liquid heat exchange medium in the heat exchange box and transmits heat to the second liquid heat exchange medium so as to be cooled,the second heat exchanger is in heat exchange relation with the second liquid heat exchange medium in the heat exchange box so as to transfer the heat of the second liquid heat exchange medium to thefirst heat exchange medium in the second heat exchanger. According to the third purification gas recovery flow path, through the third gas purification and recovery flow path, at least a part of thetail gas purified by the heat exchange box is guided back to the first heat exchanger through a gas inlet so as to circularly utilize the processing gas.

The invention discloses an air conditioner hot water system. The system comprises a compressor, a first four-way valve, a condenser water tank, a second four-way valve, an outdoor heat exchanger and an indoor heat exchanger, and interfaces D1, E1, S1 and C1 of the first four-way valve are connected with an exhaust port of the compressor, one end of the indoor heat exchanger, an air suction port ofthe compressor and an inlet of the condenser water tank correspondingly; interfaces D2 and C2 of the second four-way valve are respectively connected with the condenser water tank and an outlet at one end of the outdoor heat exchanger, and the other end of the indoor heat exchanger is connected with the other end of the outdoor heat exchanger; the E2 connector and the S2 connector of the second four-way valve are in bypass connection between the indoor heat exchanger and the E1 of the first four-way valve and between the indoor heat exchanger and the outdoor heat exchanger respectively, condensation waste heat of the system can be recycled to produce hot water, and heat recovery is effectively achieved.

The invention discloses a membrane type dew point evaporative cooling heat exchanger in the technical field of heat exchangers. The membrane type dew point evaporative cooling heat exchanger is internally provided with first heat exchanging membranes and second heat exchanging membranes all of which are overlapped in an alternate manner, wherein a hydrophilic face of each first heat exchanging membrane and a hydrophilic face of the corresponding second heat exchanging membrane are oppositely arranged to form a wet heat exchanging channel layer, and a hydrophobic face of each first heat exchanging membrane and a hydrophobic face of the corresponding second heat exchanging membrane are oppositely arranged to form a dry heat exchanging channel layer; and a first foldable cavity face and a second foldable cavity face are combined at the semi-opening ends of the wet heat exchanging channel layers to form a water inlet and outlet cavity and are closed at the dry heat exchanging channel layers. By means of the membrane type dew point indirect evaporative cooling heat exchanger, mixing of countercurrent and cross-flow can be achieved, meanwhile, by improving cross section structures of thedry heat exchanging channels and the wet heat exchanging channels, while the relative small heat exchanging temperature difference is guaranteed, the flowing pressure drop is reduced, and the heat exchanging efficiency is improved.