42results about How to "Large drop in temperature" patented technology

The invention provides a laterally-arranged heat pump clothes drying cabinet of a deep dehumidification device. The laterally-arranged heat pump clothes drying cabinet comprises a drying room and a refrigeration and dehumidification device. The refrigeration and dehumidification device is arranged on the side face of the drying room to form a high-position air suction and low-position air exhaust mode or a low-position air suction and high-position air exhaust mode. The drying room air inlet is provided with an air bag, and drying air flows into the drying room through through-holes formed in the air bag. The refrigeration and dehumidification device comprises a first condenser, a second condenser, a third condenser and an evaporator, wherein wet air is divided into two ways, one way of wet air flows through the first condenser and the second condenser to perform heating and temperature rise so as to obtain high-temperature drying air, the other way of wet air flows through the evaporator to perform temperature reduction and passes through the third condenser to perform heating and temperature rise so as to obtain high-temperature drying air, and two ways of drying air are input into the drying room after being mixed. By means of the refrigeration and dehumidification device, the problem that condensation pressure and condensation temperature of a traditional heat pump clothes drying machine at a speed-reduction drying phase are continuously improved, accordingly power consumption, pressure difference and compression ratio of a compressor are improved, energy efficiency ratio is reduced, the working condition is severely worsened, and even the compressor is burned down is solved.

A process for continuously preparing the solid-state natural gas includes such steps as continuously moistening the pressurized natural gas by water, flowing the wet natural gas into reactor, spraying them from multiple nozzles of reactor for throttling expansion while high-speed rotating in reactor to quickly generate solid hydrate, solid-gas separation, discharging the particles of solid hydrate, mixing the unreacted gas with raw material gas in compressor while compressing, wetting, and continuing reaction in reactor. Its advantages are low cost, high productivity and high utilization rate of raw natural gas.

The invention relates to a kind of suppress-printing production technology of laser pattern. Install the printed matter and laser membrane on the production line respectively, spread a layer of ultraviolet ray oil on the printed matter surface, make the side with pressed line pattern of the laser membrane coincident with the printed matter, utilize the ultraviolet light to shine the printed matter to solidify the ultraviolet ray oil, the laser transparent membrane is separated from printed matter. In the above-mentioned course, send the cool air into the solidification case, control the temperature of the area between the solidification case printing opacity glass and the printed matter within the range from 30 DEG C to 60 DEG C . This production technology can solidify the ultraviolet ray oil in time, make the laser membrane and printed matter break away from each other automatically, and avoid the problem caused by overheating of the printed matter as bubbling and shape losing of the laser pattern , etc.

The invention discloses a cascade utilization method and device of waste gas of flue gas of a boiler for a thermal power unit. A first low pressure heater heat exchanger is arranged between an air preheater and a flue gas-oil heat exchanger, and a second low pressure heater heat exchanger is arranged at the flue gas outlet side of the flue gas-oil heat exchanger; a diversion pipe is additionally arranged on a low pressure water supply manifold which is arranged at the back of a condenser and in front of a first-stage low pressure heater, and a water inlet pipe is additionally arranged at the water inlet side of a deaerator; the diversion pipe is connected with a water inlet of the second low pressure heater heat exchanger, and the water inlet pipe is connected with a water outlet of the first low pressure heater heat exchanger; and a low pressure water supply pipeline is arranged between the water inlet of the first low pressure heater heat exchanger and the water outlet of the second low pressure heater heat exchanger. Through the arrangement of an additional economizer heating surface, the low pressure heat exchanger, the flue gas-oil heat exchanger and an air-oil heat exchanger, the temperature counterpart and cascade utilization of flue gas waste heat are realized, the boiler efficiency and the unit power generation efficiency are improved, the energy consumption of the thermal power unit is reduced, and meanwhile the carbon dioxide emission is reduced.

The invention discloses a trans-critical carbon dioxide refrigeration method and a device thereof. The method comprises the following steps that (1) superheated carbon dioxide steam is pressurized forprimary compression and primary cooling; (2) subcritical carbon dioxide is subjected to secondary compression and secondary cooling; (3) after supercritical carbon dioxide is cooled again, the supercritical carbon dioxide is throttled to be low-temperature subcritical carbon dioxide; (4) the throttled low-temperature subcritical carbon dioxide is sent to an evaporation tank to be evaporated intohigh-temperature low-pressure carbon dioxide gas; and (5) the high-temperature low-pressure carbon dioxide gas absorbs heat and then is converted into superheated carbon dioxide steam, and is fed intoa first compressor for boosting for cyclic utilization. According to the trans-critical carbon dioxide refrigeration method and the device thereof, an expansion machine is used for recycling and outputting mechanical energy to drive a compressor to complete compression, a double-compressor is used for improving the compression performance of the supercritical carbon dioxide, and a double-gas cooler and an internal regenerator are used for cooling the carbon dioxide gas so as to improve the cycle energy efficiency of the carbon dioxide.

The invention discloses an ecological field effect based regeneration method for shelterbelt networks in plain farmlands. Poplar trees are planted to form shelterbelts. A half-belt regeneration and/or in-belt regeneration way is adopted. Half-belt generation includes: a plurality of rows of trees on one side of one old shelterbelt are felled; a half belt remains; and a new shelterbelt is built in the felled half belt. In-belt regeneration includes: regeneration is performed among tree rows of one original shelterbelt or on the open space with trees felled; and shelterbelt regeneration is performed every three other years. The in-belt generation way is applicable to regeneration of ditch-road alternating type wide shelterbelts. The network in the plain farmlands regenerated by in-belt generation has good wind-breaking efficacy and also has a good ecological climate field effect. The ecological field effect based regeneration method for shelterbelt networks is important for scientific regeneration and reformation of the existing farmland shelterbelt networks, promotion on regeneration and healthy growth of the farmland shelterbelt networks, increase of regeneration quality and management level of the shelterbelt networks, and realization of continuity and stability of protective efficacy and comprehensive benefits of the shelterbelt networks.

The invention discloses a high-temperature waste gas purification treatment device which comprises a treatment barrel. A clapboard is fixed into the treatment barrel and divides the treatment barrel into a cooling chamber and a waste water recovery chamber from top to bottom; an air inlet pipe communicates to one side of the cooling chamber; an air outlet pipe communicates to the upper side of oneend of the cooling chamber; a barrel cover is fixed to the upper end of the treatment barrel; a water pump is fixed to one side of the upper end of the barrel cover; an inlet of the water pump communicates with a tap water pipe through a water inlet pipe; an outlet of the water pump communicates with a water outlet pipe; the water outlet pipe communicates with a circular water pipe; the circularwater pipe is fixed to the lower end of the barrel cover through a connecting rod and is located at the upper end of the cooling chamber; multiple atomizing nozzles are uniformly arranged on the lowerside of the circular water pipe; and a cleaning mechanism is arranged in the cooling chamber. High-temperature waste gas can be cooled through the structure, so that the high-temperature waste gas purification treatment device is good in cooling effect, simple in structure, easy to operate, low in cost, and convenient to clean.

The invention relates to the technical field of thermal power unit energy saving, in particular to a method and device for carrying out gradient utilization on boiler flue gas waste heat to improve efficiency of a thermal power unit. The device for carrying out gradient utilization on the boiler flue gas waste heat to improve the efficiency of the thermal power unit comprises an economizer of a boiler of the thermal power unit, an air pre-heater communicated with the economizer, and a main water feed pipe of a high-pressure heater. The device for carrying out gradient utilization on the boiler flue gas waste heat to improve the efficiency of the thermal power unit is characterized in that an additional heated surface is added to the economizer, an air-and-oil heat exchanger and a flue-gas-and-oil heat exchanger are additionally arranged on the cold side of the air pre-heater, the air-and-oil heat exchanger and the flue-gas-and-oil heat exchanger are connected through a circulation pipeline, heat-transfer medium conduction oil is injected into the circulation pipeline, and a bypass pipe is arranged on the main water feed pipe of the high-pressure heater. Due to the fact that the additional heated surface of the economizer, the flue-gas-and-oil heat exchanger and the air-and-oil heat exchanger are arranged, gradient utilization corresponding to the temperature of the flue gas waste heat is achieved, boiler efficiency and generating efficiency of the thermal power unit are improved, energy consumption of the thermal power unit is reduced, and emission of carbon dioxide is reduced.

The invention relates to a hot water type lithium bromide absorption-type cooling water unit with single-effect generating solution parallel connection and belongs to the technical field of refrigeration equipment. The hot water type lithium bromide absorption-type cooling water unit comprises a single-effect generator, a second-stage generator, a condenser, an evaporator, a second-stage absorber,a first-stage absorber, a first-stage generator, a first-stage heat exchanger, a second-stage heat exchanger, a single-effect heat exchanger, a refrigerant pump, a second-stage generating pump, a second-stage absorption pump and a first-stage single-effect generating pump. The hot water type lithium bromide absorption-type cooling water unit is characterized in that hot water is in series connection and enters the single-effect generator firstly, then enters the first-stage generator, and finally enters the second-stage generator; the interior of the unit is divided into three relatively independent solution circulation, namely the second-stage solution circulation, the first-stage solution circulation and the single-effect solution circulation, and the first-stage solution circulation and the single-effect solution circulation are in parallel connection; and four shielding pumps are used. According to the hot water type lithium bromide absorption-type cooling water unit, the coolingamplitude of medium (low) temperature waste heat water is large, the performance coefficient COP value is increased while heat of the waste heat water is more recycled, and the comprehensive economicand social benefits of energy saving and emission reduction are achieved.

The invention relates to a refrigeration system which is characterized by comprising liquid air, a heat preservation container which is capable of containing low temperature liquid air and guaranteeing the state of the liquid air, a liquid air inlet pipeline which is communicated with the heat preservation container, and is provided with a valve, a cold air outlet, an air outlet pipeline which is provided with a valve and connects the heat preservation container to the cold air outlet, and an air blower which is communicated with the bottom of the heat preservation container through an air inlet pipeline which is provided with an inlet valve. When in use, the liquid air is injected into the heat preservation container, the valve in the air outlet pipeline is opened, the air blower is started, the inlet valve is opened, and then cold air is blown out from the cold air outlet through the air outlet pipeline, thereby the temperature of an air conditioner is reduced. The refrigeration system has the advantages of low manufacturing cost, high efficiency, energy conservation, instantaneous temperature reduction, large temperature reduction range, large refrigeration capacity, low noise, environmental protection, low operation cost and strong practicability.

The invention discloses a supersonic-speed low-temperature separating device and a crude oil stabilizing and light hydrocarbon recovering method and device. The supersonic-speed low-temperature separating device comprises a crude oil heat exchanger, a flash tank, a pumping compressor, an air cooler, a heat exchanger, a separator, a separating device and a secondary separator. The crude oil heat exchanger heats introduced crude oil at the heating temperature smaller than 50 DEG C, the heated crude oil enters the flash tank, the pumping compressor pumps and compresses gas in the flash tank and makes the gas enter the air cooler, the air cooler cools the input gas, the gas then enters the heat exchanger, the heat exchanger cools an input medium through part of low-temperature gas separated bythe separating device, the cooled medium enters the separator to be primarily separated, a primarily-separated gas phase in the separator enters the separating device for supersonic-speed separation,condensate is collected in a circular seam of the separating device, and part of low-temperature gas separated by the separating device flows back to the flash tank for pressure adjusting.

The invention discloses an evaporation cooling and machine refrigeration-heating combined splash-prevention type air conditioner for bus. The air conditioner comprises an evaporation cooling and machine refrigeration-heating combined system arranged on the outside top of the bus, an air feeding passage arranged on the inner top part of the bus and an air return passage arranged on the rear part of the inner side of the bus, the evaporation cooling and machine refrigeration combined system and the air return passage are both connected with the air feeding passage. Through the adoption of the splash-prevention type air conditioner for bus, the air quality in the bus compartment can be obviously improved and the energy consumption is low.

The invention relates to an air conditioner fan achieving air incoming from two side faces simultaneously. The air conditioner fan comprises a body assembly, a fan assembly, a water storage tank and awater evaporation carrier assembly; the fan assembly comprises an air outlet located in the top of the fan assembly and two air inlets located in the two ends of the fan assembly; the water evaporation assembly is vertically arranged on the portion, close to the water tank end wall part, in the water storage tank and is next to the corresponding air inlet; when the fan assembly works, the negative pressure occurs in the inner air, the outside air is sucked under the action of the negative pressure and passes through the water evaporation carrier assembly and the air inlets and the air outletof the fan assembly in sequence, moisture in the water evaporation carrier assembly is blown away and evaporated into the peripheral air by means of airflow, and air cooling and humidification are achieved. Physical evaporation cooling is conducted through dual-port air incoming; by means of a drawer type water tank and the water evaporation carrier assembly convenient to remove, the cooling efficiency is high, water adding and cleaning are convenient, the air conditioner fan can move part of parts conveniently to serve as an ordinary fan or an air filter fan, the air conditioner fan has multiple purposes, and the use cost is reduced.

The invention discloses a mine cooling method based on outdoor temperature. The cooling method comprises the steps that a ventilation pipeline is arranged; a refrigerating system is arranged outside amine and communicates with the ventilating pipeline; a microcomputer unit is arranged, regulates and controls the refrigerating system based on the external temperature, and can communicate with theoutside through a remote control box; and the refrigerating system comprises a ventilation system and a water cooling system, the water cooling system provides a cold source for the ventilation system, cold air of the ventilation system from the water cooling system is fed into a mine operation platform through a fan, the temperature of the operation platform is kept at 25-28 DEG C, and when the external temperature is lower than 14 DEG C, the microcomputer unit reduces or stops the operation of a refrigeration host of the water cooling system and the air amount of the ventilation system according to enthalpy change regulation and control, and starts the refrigeration host of the water cooling system when the external temperature is higher than 14 DEG C. The mine cooling method has the advantages that the structure is simple, and the use is convenient.

The invention relates to the technical field of smoke purification devices, in particular to a spraying tower, an exhaust system and a boiler system. The spraying tower comprises a tower body, a first circulation assembly, a second circulation assembly and a cooling assembly. The tower body is internally provided with a first spraying layer, a second spraying layer, a first liquid storage groove and a second liquid storage groove, wherein the first liquid storage groove corresponds to the first spraying layer and is used for collecting liquid sprayed out through the first spraying layer, the second liquid storage groove corresponds to the second spraying layer and is used for collecting liquid sprayed out through the second spraying layer, and smoke of the tower body sequentially passes through the first spraying layer and the second spraying layer. The first circulation assembly is connected with the first spraying layer and the second liquid storage groove, and the liquid of the second liquid storage groove is conveyed into the first spraying layer. The second circulation assembly is connected with the second spraying layer and the first liquid storage groove, and the liquid in the first liquid storage groove is conveyed into the second spraying layer. The cooling assembly is arranged in the second circulation assembly and cools the liquid in the second circulation assembly.

The embodiment of the invention provides a condenser and an air conditioning unit, and relates to the field of air conditioners. The condenser comprises a condenser shell, a cooling water pipeline and a refrigerant steam pipeline, and a first cavity and a second cavity which are separated from each other are defined in the condenser shell; a refrigerant inlet and a first refrigerant outlet are formed in the condenser shell, the refrigerant inlet is communicated with the first refrigerant outlet, the refrigerant inlet is used for being communicated with the outlet end of the compressor, and the first refrigerant outlet is used for being communicated with the inlet end of the evaporator; the cooling water pipeline is arranged in the first cavity, a water inlet and a water outlet are formed in the condenser shell, and the two ends of the cooling water pipeline communicate with the water inlet and the water outlet correspondingly. And the refrigerant steam pipeline is arranged in the second cavity, an inlet of the refrigerant steam pipeline is used for communicating with the outlet end of the evaporator, an outlet of the refrigerant steam pipeline is used for communicating with the inlet end of the compressor, and the cooling effect on the coolant can be improved.