509results about How to "Raise the evaporation temperature" patented technology

Provided is a method of manufacturing a semiconductor device. After a semiconductor wafer is placed over a wafer stage with which a dry cleaning chamber of a film forming apparatus is equipped, dry cleaning treatment is given over the surface of the semiconductor wafer with a reducing gas. Then, the semiconductor wafer is heat treated at a first temperature of from 100 to 150° C. by using a shower head kept at 180° C. The semiconductor wafer is then vacuum-transferred to a heat treatment chamber, wherein the semiconductor wafer is heat treated at a second temperature of from 150 to 400° C. A product remaining over the main surface of the semiconductor wafer is thus removed. The present invention makes it possible to manufacture a semiconductor device having improved reliability and production yield by reducing variations in the electrical properties of a nickel silicide layer.

A method for increasing deposition rates of metal layers from metal-carbonyl precursors by mixing a vapor of the metal-carbonyl precursor with CO gas. The method includes providing a substrate in a process chamber of a deposition system, forming a process gas containing a metal-carbonyl precursor vapor and a CO gas, and exposing the substrate to the process gas to deposit a metal layer on the substrate by a thermal chemical vapor deposition process.

A method and a deposition system for increasing deposition rates of metal layers from metal-carbonyl precursors using CO gas and a dilution gas. The method includes providing a substrate in a process chamber of a processing system, forming a process gas containing a metal-carbonyl precursor vapor and a CO gas, diluting the process gas in the process chamber, and exposing the substrate to the diluted process gas to deposit a metal layer on the substrate by a thermal chemical vapor deposition process. The deposition system contains a substrate holder configured for supporting and heating a substrate in a process chamber having a vapor distribution system, a precursor delivery system configured for forming a process gas containing a metal-carbonyl precursor vapor and a CO gas and for introducing the process gas to the vapor distribution system, a dilution gas source configured for adding a dilution gas to the process gas in the process chamber, and a controller configured for controlling the deposition system during exposure of the substrate to the diluted process gas to deposit a metal layer on the substrate by a thermal chemical vapor deposition process.

A method for increasing deposition rates of metal layers from metal-carbonyl precursors by mixing a vapor of the metal-carbonyl precursor with CO gas. The method includes providing a substrate in a process chamber of a deposition system, forming a process gas containing a metal-carbonyl precursor vapor and a CO gas, and exposing the substrate to the process gas to deposit a metal layer on the substrate by a thermal chemical vapor deposition process.

A heater core for exchanging heat between a coolant and ventilation air to be blown into a vehicle interior is disposed in a high-pressure side heat-medium circulation circuit that allows for circulation of the coolant heated by a heat pump cycle. A radiator for exchanging heat between at least a part of the coolant flowing out of the heater core and a low-pressure refrigerant in the heat pump cycle is disposed in a low-pressure side heat-medium circulation circuit coupled to the high-pressure side heat-medium circulation circuit. Thus, excessive heat included in the coolant flowing out of the heater core and which is not used to heat the ventilation air can suppress frost formation on an exterior heat exchanger and can also defrost the exterior heat exchanger.

The inventive air-conditioning system comprises refrigeration and solution cycle systems. The refrigeration cycle system has a compressor, an evaporator, an expansion valve and a condenser. The solution cycle system has a dehumidifier, a regenerating unit, a solution reservoir, a solution pump, a mixed solution valve and a control valve. Because of adding a solution cycle system, the invention can realize the accuracy independent control of temperature and humidity.

The invention discloses an air-conditioning / water-heating compound machine which comrprises (1) a circulation loop for an air-conditioning system, consisting of a first compressor, a first heat exchanger, a second heat exchanger and a first throttle mechanism; and (2) a circulation loop for a water-heating system, consisting of a second compressor, a third heat exchanger, a fourth heat exchanger and a second throttle mechanism. The second heat exchanger and the third heat exchanger form a heat-transfer connection. The fourth heat exchanger and a hot-water pipeline form a water-passage connection. The hot-water pipeline is provided thereon with a water inlet and a water outlet. The invention can reduce energy consumption and has simple structure.

The invention relates to a multi-condenser and double-return-air bypass dehumidification fresh air unit and an air conditioning method. The multi-condenser and double-return-air bypass dehumidification fresh air unit comprises an air feed channel and an exhaust channel. A first heat exchanger and an air feeder are sequentially arranged at the position of the air feed channel. A second heat exchanger and an exhaust fan are sequentially arranged at the position of the exhaust channel. The second heat exchanger is connected with an auxiliary heat exchanger. A first return air bypass valve and a second return air bypass valve are arranged between the air feed channel and the exhaust channel. According to the multi-condenser and double-return-air bypass dehumidification fresh air unit, during refrigerating, the second heat exchanger serves as a condenser, a refrigerant is condensed through the indoor low-temperature exhaust air, the condensation temperature of the unit is reduced, and reheating is conducted through mixing of bypass return air and low-temperature fed air on the air feed side so that cooling capacity losses caused by cold and heat offset can be avoided; in a heating inner circulation mode, an outdoor unit can be started to rapidly increase the indoor environment temperature; and in an outer circulation mode, the second heat exchanger serves as an evaporator, the refrigerant is made to be evaporated through the heat of indoor exhaust air, the evaporation pressure and the heating capacity of the unit are increased, the power consumption of the unit is reduced, and the frosting risk of the unit is avoided.

The invention relates to a heat pump drying device with a humidity and temperature adjusting function. The heat pump drying device with the humidity and temperature adjusting function comprises a drying room, an air return flue, a circulation draught fan in the air return flue, an air exhaust flue communicated with the air return flue, an exhaust fan at an opening of the air exhaust flue, an air heat recovery device arranged at the intersection of the air return flue and the air exhaust flue, and a heat pump unit, wherein the air return flue is communicated with an air feeding opening and an air return opening of the drying room. The heat pump unit comprises a compressor, a temperature-adjusting condenser, a main condenser, an expansion valve, an indoor evaporator and a heat recovery evaporator which are sequentially connected in series through pipes, wherein the main condenser is arranged in the air return flue, and the heat recovery evaporator is arranged at an opening of the air exhaust flue. The temperature and humidity of the drying room can be adjusted directly at any time according to the need of a drying process, sensible heat and latent heat contained in high-temperature and high-humidity air exhausted out of the drying room are recovered to the maximum extent, the evaporating temperature of the heat pump drying device is increased so as to improve the efficiency of the drying device, and accordingly the heat pump drying device has higher properties of energy saving and environmental friendliness.

The invention discloses a method for controlling temperature / humidity of a multi-on-line air conditioning system and the multi-on-line air conditioning system; the method comprises the following steps: converging first refrigerating fluid input by the switching unit of an outdoor unit with second refrigerating fluid input by the third end of the outdoor unit, compressing refrigerating fluid through a shunting unit; shunting the refrigerating fluid; outputting the first refrigerating fluid and the second refrigerating fluid respectively; outputting the second refrigerating fluid output by the shunting unit to the first end of an indoor unit through the first end of the outdoor unit, wherein the second refrigerating fluid passes through a second condenser and a second evaporator of the indoor unit orderly and is flowed out of the third end of the indoor unit and is reflowed to the shunting unit through the third end of the outdoor unit; and switching to output the first refrigerating fluid output by the shunting unit and flowing the first refrigerating fluid through a first condenser and a first evaporator orderly, and flowing the first refrigerating fluid into the shunting unit. According to the invention, the operation energy efficiency ratio of the multi-on-line air conditioning system can also be increased.

A land-type solar seawater desalinating apparatus with capillary evaporation function is composed of seawater tube, seawater pump, seaweed removing unit, fresh water condensing plate and its cooling trough, capillary evaporator, sealed transparent casing, seawater distributing tube, concentrated saline collector, fresh water collector, etc.

A method and a deposition system for increasing deposition rates of metal layers from metal-carbonyl precursors using CO gas and a dilution gas. The method includes providing a substrate in a process chamber of a processing system, forming a process gas containing a metal-carbonyl precursor vapor and a CO gas, diluting the process gas in the process chamber, and exposing the substrate to the diluted process gas to deposit a metal layer on the substrate by a thermal chemical vapor deposition process. The deposition system contains a substrate holder configured for supporting and heating a substrate in a process chamber having a vapor distribution system, a precursor delivery system configured for forming a process gas containing a metal-carbonyl precursor vapor and a CO gas and for introducing the process gas to the vapor distribution system, a dilution gas source configured for adding a dilution gas to the process gas in the process chamber, and a controller configured for controlling the deposition system during exposure of the substrate to the diluted process gas to deposit a metal layer on the substrate by a thermal chemical vapor deposition process.

The invention relates to a heat pump air conditioner with adjustable humidity, belonging to the technical filed of refrigeration. The heat pump air conditioner comprises a compression heat pump system and a rotating wheel dehumidifying system, which are connected with each other. The rotating wheel dehumidifying system comprises a belt or gear, a dehumidifying rotating wheel, a heater, a heat regenerator, an outdoor blower, a motor, and an indoor blower, wherein the motor is connected with the dehumidifying rotating wheel via the belt or gear, the dehumidifying rotating wheel is respectively connected with the heater and heat regenerator in fresh air region via air pipes, the heat regenerator is connected with an indoor heat exchanger at fresh air side with an air pipe, the indoor heat exchanger is connected with the indoor blower, an outdoor heat exchanger subzone is connected with the heater via an air pipe, and the other side of the outdoor heat exchanger subzone is connected with an outdoor heat exchanger of the compression heat pump system via an air pipe. The invention can effectively utilize condensation of air conditioner to remove heat, and is an environmentally-friendly and energy-saving refrigeration unit with the advantages of simple structure, automatic operation, and no environmental pollution.

The invention discloses an electric vehicle heat pump system which comprises a refrigerant circulation loop and a coolant circulation loop. The coolant circulation loop comprises a double flow channel heat exchanger in pipeline connection, an electric water pump and at least a fourth heat exchanger. The refrigerant circulation circuit comprises a compressor for compressing refrigerant, a valve or a valve assembly for switching a refrigerant flow path, a heat exchanger outside a carriage, a throttle assembly and a heat exchanger in the carriage. The refrigerant circulation loop further comprises a double flow channel heat exchanger in pipeline connection at an air absorbing opening side of the compressor, and a first flow channel of the double flow channel heat exchanger is communicated with an air absorbing opening of the compressor and a fourth interface pipeline of a four-way valve. A second flow channel of the double flow channel heat exchanger is communicated with the coolant circulation loop. The electric vehicle heat pump system can not only achieve cooling of devices such as a battery and a converter under a refrigerating or a heating mode, and the whole evaporating temperature of operation of the heat pump system is improved.

The invention discloses a solution-spraying type air-conditioner heat pump unit, belonging to the field of refrigerating air-conditioning equipment. The solution-spraying type air-conditioner heat pump unit is technically characterized in that with the adoption of the solution spraying, the unit diffuses condensation heat to the environment in summer and takes heat from the outdoor air environment in winter; and the solution is regenerated by the using of exhausted gas of the compressor or hot water manufactured by the unit. Compared with an air source heat pump unit, the solution-spraying type air-conditioner heat pump unit has the obvious characteristics that the refrigeration efficiency is high, the continuous heating operation can be realized without defrosting in winter and the heating efficiency is high, and in addition, the structure of the unit is compact and the early-investment of the equipment is low.

The invention discloses operation modes and a structure of a heat-circulation heat pump drying unit. The structure is characterized in that the drying unit comprises a heat recovery air duct which forms a sealed air flow circulation loop with the inner cavity of the drying oven, an evaporator is installed in the air duct, and an air regulator for regulating and controlling the air flowing through the evaporator is arranged in the unit. The operation modes are a heating mode and a heat-circulation dehumidification mode. In the early operation stage of the unit, the heating mode is started, the heat pump system absorbs heat from the atmosphere, so that the air in the drying oven is heated to achieve the preset temperature; and then, the unit operates the heat-circulation dehumidification mode, the high-temperature high-humidity gas in the drying oven flows through the evaporator in the air duct to be cooled and dehumidified and then flows back to the drying oven, the sensible heat and latent heat absorbed by the evaporator are released into the drying oven by a condenser, and the air regulator enables the ratio of the condensation air quantity to evaporation air quantity to be greater than 2 and controls the inlet / outlet air temperature difference of the evaporator to be 10-25 DEG C. The unit has the advantages of high average COP and high latent heat ratio in the heat absorbed by the evaporator; and the dehydrating amount per kilowatt-hour is 5 kilograms or above, so that the efficiency is enhanced by 70-130% as compared with the conventional heat pump drying.

The invention relates to a temperature and humidity independent control air-conditioning system based on the membrane distillation technology, which comprises a lithium bromide absorption refrigerating system, a lithium bromide solution dehumidifying system and an auxiliary connecting part, wherein the lithium bromide absorption refrigerating system is utilized to control the supply air temperature, and the lithium bromide solution dehumidifying system is utilized to control the supply air humidity; the solution analysis process in the lithium bromide absorption refrigerating system and the solution regeneration process in the lithium bromide solution dehumidifying system are subjected to centralized treatment in a membrane distillation component; a concentrated lithium bromide solution after treatment is divided into two parts, wherein one part is taken as an absorbent solution of an absorber in the absorption refrigerating system, and the other part is taken as a spraying solution in the solution dehumidifying system to perform dehumidification treatment on the air; simultaneously a low-temperature diluted lithium bromide solution treated by the dehumidifying system is taken as a cooling solution of the absorber in the absorption refrigerating system to recover energy, so that the efficiency of the system is improved and the energy of the system is saved.

The invention discloses an evaporator for performing innocent treatment on sewage in industries of papermaking and the like. In an existing device, a secondary steam pipe is connected to an inlet of a compressor; an outlet of the compressor is connected with a steam inlet of a steady head tank; the other steam inlet pipe of the steady head tank is connected with a fresh steam pipe of a boiler; a steam outlet of the steady head tank is connected with a falling-film evaporator which is at least provided with one circulating pipe connected with a circulating pump; an outlet of a stripper plant of the falling-film evaporator is communicated with a non-condensable air pipe and a heavily-polluted condensate water outlet pipe which is communicated with a water inlet of a heavily-polluted condensate water tank; a water outlet of the heavily-polluted condensate water tank is communicated with a heavily-polluted condensate water delivery pipe; and a condensation water outlet pipe of a condenser is communicated with the water inlet of the heavily-polluted condensate water tank.

The invention discloses a heat and humidity segmented treatment air-conditioning device and method combined with radiation cold supply. The device mainly comprises a cold water unit, an air treater, a radiation coil pipe, a water pump, an electromagnetic valve and a pipeline. In a system, chilled water obtained by the cold water unit is used for cooling and dehumidifying air, and is supplied to a ceiling or a floor radiation coil pipe for radiation cold supply to realize segmented treatment of heat and humidity loads in a room. The radiation coil pipe is used for supplying cold and bearing a part of sensible heat load in the room, and dehumidified supply air is used for bearing the other part of sensible heat load in the room and indoor humidity load and preventing a radiation surface from moisture condensation. Chilled water is segmentally applied to dehumidification and radiation cold supply, and the temperature difference between supply water and return water is about 7-10 DEG C. A refrigeration cycle of a water chilling unit is realized with a non-azeotropic refrigerant, and good temperature matching of chilled water and the refrigerant in the heat exchanger is realized by means of the temperature slippage characteristic of the non-azeotropic refrigerant, so that the performance coefficient of the unit is increased.

The invention relates to the technical field of air-conditioners, and discloses an air-conditioner defrosting system. The air-conditioner defrosting system comprises a refrigerating fluid loop, the refrigerating fluid loop comprises a compressor, an indoor heat exchanger, a throttling gear and an outdoor heat exchanger which are connected through pipes, and the indoor heat exchanger is arranged in an indoor unit; the air-conditioner defrosting system further comprises a bypass branch way, a pipe temperature sensing package, an air outlet temperature sensing package, an electrical heating piece and a controller; the bypass branch way is used for defrosting for the outdoor heat exchanger, the first end of the bypass branch way is connected with the pipeline between the compressor and the indoor heat exchanger, the second end of the bypass branch way is connected with the pipeline between the throttling gear and the outdoor heat exchanger, and an adjusting valve for adjusting the refrigerating fluid flow is arranged on the bypass branch way; the pipe temperature sensing package is used for detecting the pipe temperature of the outdoor heat exchanger; the air outlet temperature sensing package is used for detecting the air outlet temperature of the indoor unit; the electrical heating piece is used for regulating and controlling the air outlet temperature of the indoor unit; and the controller is electrically connected with the adjusting valve, the pipe temperature sensing package, the air outlet temperature sensing package and the electrical heating piece. By means of the air-conditioner defrosting system, the fault rate of a reversing valve can be reduced, meanwhile, a user can be prevented from being blown with cold air, and the user comfort is improved.

The invention provides an air conditioning system which independently controls temperature and humidity and a refrigeration / dehumidifying method. A cooling media circulation system, a water circulation system and an air supply system of an air duct machine are assembled to realize independent control of the temperature and the humidity, thus greatly improving comfort of a user and realizing energy saving.

The invention provides an air conditioner and a heating control method thereof. Besides a refrigerant main loop of a compressor, a reversing valve, an indoor heat exchanger, a throttling device and anoutdoor heat exchanger connected in series, a bypass defrosting loop is additionally added, one end of the bypass defrosting loop is connected to the position between the compressor and the reversingvalve, and the other end of the bypass defrosting loop is connected to the position between the throttling device and the outdoor heat exchanger; and a controller is additionally arranged, so that when the air conditioner is in a heating mode and defrosting operation is started, the bypass valve is opened, part of refrigerant discharged by the compressor is directly discharged to the outdoor heatexchanger through the bypass defrosting loop, and the proportion of the refrigerant passing through the bypass defrosting loop to the refrigerant discharged by the compressor is adjusted according tothe temperature of a coil pipe of the outdoor heat exchanger. According to the air conditioner and the heating control method thereof, defrosting can be carried out during continuous heating operation without switching to a refrigeration mode, and therefore heat is not absorbed from a room; and the refrigerant flow of the refrigerant main loop and the bypass defrosting loop is controlled, so thatoutdoor defrosting can be guaranteed, and the indoor heating effect can be ensured.

A dual-temperature radiation heat pump type room air conditioner capable of processing fresh air comprises an air compressor. The air compressor is connected with an outdoor heat exchanger through a four-way reversing valve, the outdoor heat exchanger is connected with a metal radiation plate and an induction-type fresh air processor which are connected in parallel, a valve combination is arranged on a connecting pipeline, and the metal radiation plate and the induction-type fresh air processor are connected with the four-way reversing valve and the outdoor heat exchanger through an ejector and a three-way valve backwards. The refrigerant flow path is changed through the four-way reversing valve, the three-way valve and the valve combination to enable the metal radiation plate and the induction-type fresh air processor to serve as a parallel evaporator in the summer working condition and to serve as a parallel condenser and provide the defrosting working condition in the winter working condition. The dual-temperature radiation heat pump type room air conditioner meets the cold source requirement for temperature and humidity independent control in the summer working condition of the single air compressor, the dual advantages of radiation and fresh air heat / cold supplying are adopted in the winter working condition and the summer working condition, the quality of indoor air can be improved, the thermal comfort can be improved, secondary heat exchanging losses can be avoided and the energy utilization rate can be increased.

A refrigeration cycle device includes an interior condenser that exchanges heat between a high-pressure refrigerant and ventilation air to heat the ventilation air, an exterior heat exchanger that exchanges heat between outside air and the refrigerant downstream of the interior condenser, an interior evaporator that exchanges heat between a low-pressure refrigerant downstream of the exterior heat exchanger and the ventilation air before passing through the interior condenser, and an internal heat exchanger that exchanges heat between the refrigerant flowing out of the exterior heat exchanger and the refrigerant flowing out of the interior evaporator. The refrigeration cycle device further includes a gas-liquid separator that separates the refrigerant at a downstream side of the interior condenser into gas and liquid phase refrigerants. In a dehumidification heating mode of evaporating the refrigerant at the exterior heat exchanger, the liquid-phase refrigerant separated by the gas-liquid separator flows into the exterior heat exchanger.

The invention provides an adaptively-matched solar auxiliary air source heat pump device. The device comprises a refrigerant circulation loop subsystem, a solar hot water circulation loop subsystem and a user hot water loop subsystem, wherein the refrigerant circulation subsystem is the core of the whole system and controls the energy conversion and heat transmission; the refrigerant circulation subsystem comprises a compressor (1), an indoor condenser (2), a capillary pipe (3) and a sleeve heat exchanger (4); a refrigerant outlet of the indoor condenser (2) is connected with an inlet of the capillary pipe (3); an outlet of the capillary pipe (3) is connected with an in-pipe refrigerant inlet (11) of the sleeve heat exchanger (4); and an in-pipe refrigerant outlet (13) of the sleeve heat exchanger (4) is connected with a gas inlet of the compressor (1). Through the invention, the heat in the solar air source heat pump system can be reasonably distributed, and the energy consumption of the building can be saved.

The invention discloses a household fresh air purifying full-air-conditioning system which comprises a fresh air purifying air-conditioning unit, a circulation water route and an outdoor unit. The fresh air purifying air-conditioning unit comprises a pipe section with a fresh air inlet and a return air inlet. Fresh air fed from the fresh air inlet and return air fed from the return air inlet are mixed in a mixing section and filtered through a low-efficiency filter, and enter a surface type heat exchanger to exchange heat with freezing or cooling water for dehumidification, and air treated by the surface type heat exchanger enters a high-efficiency filter to be filtered again under the drive of an air feeder and then is fed into a room through an air feeding inlet. An outdoor unit comprises a compressor. The compressor is connected with an air cooling heat exchanger, a water cooling heat exchanger, a gas-liquid separator and the like through a four-way reversing valve. A freezing or cooling water inlet of the surface type heat exchanger is connected with a heat exchange water outlet of the water cooling heat exchanger, a freezing or cooling water outlet of the surface type heat exchanger is connected with a heat exchange water inlet of the water cooling heat exchanger, and therefore the circulation water route is formed. Indoor environment is adjusted and controlled in winter, summer and transition seasons, and a comfortable and healthy natural environment is simulated.

The invention relates to a solution spray type heat pump set, belonging to the field of refrigerating and air conditioning equipment. The solution spray type heat pump set has the technical characteristics that the set radiates condensed heat to the environment in summer and takes heat from the outdoor air environment in winter by using solution spray, and the solution is regenerated by using heat released by recooling a high-pressure liquid refrigerant. Compared with an air source heat pump unit, the solution spray type heat pump set has the obvious characteristics of compact set structure, low initial equipment investment, high energy efficiency ratio for refrigeration operation in summer, no need of defrosting in winter, efficient, continuous and stable refrigeration operation and the like.

The invention relates to a superhigh-temperature heat pump drying system. The superhigh-temperature heat pump drying system comprises a drying room, an air return duct, a circulating draught fan, an exhaust duct, an exhaust fan, an air heat recovering device and at least two heat pump units. The air return duct is communicated with an air supply port and an air return port of the drying room. The circulating draught fan is arranged in the air return duct. The exhaust duct is communicated with the air return duct. The exhaust fan is arranged at a duct opening of the exhaust duct. The air heat recovering device is arranged at the intersection of the air return duct and the exhaust duct. The heat pump units are used in parallel. According to the superhigh-temperature heat pump drying system, the two or more heat pump units work in parallel, and the drying room is heated by absorbing low-grade ambient air heat at the initial stage of the drying process, so that the temperature is increased; after the temperature is increased to a certain extent, high-temperature and high-humidity air exhausted out of the drying room is dehumidified, and sensible heat and latent heat contained in the high-temperature and high-humidity air are recovered to the maximum extent; due to the gradient difference of the temperature ranges of cycle working fluid of the heat pump units, relatively higher air supply temperature can be provided through the system, and meanwhile it is guaranteed that the evaporating temperature of the drying units is sufficiently increased.

The invention provides an air-conditioner system and a control method of the air-conditioner system. The air-conditioner system comprises a refrigerating system. A first port of a second four-way valve is connected to a pipeline between a first four-way valve and an indoor heat exchanger, and a second port of the second four-way valve is connected to a first position of a pipeline between the indoor heat exchanger and an outer heat exchanger. A first port of a first channel of an auxiliary heat exchanger communicates with a fourth port of the second four-way valve, a second port of the first channel is connected to a second position of the pipeline between the indoor heat exchanger and the outdoor heat exchanger, a first port of a second channel is connected to a third position of the pipeline between the indoor heat exchanger and the outdoor heat exchanger, and a second port of the second channel is connected to a pipeline between the outdoor heat exchanger and an air return port of a compressor. A first throttling component is arranged on a pipeline of the first channel. A second throttling component is arranged on a pipeline between the first port of the second channel and the third position.

The invention discloses a low refrigerant charging amount heat pump device and a control method thereof. The device comprises a compressor, a compressor refrigerant gas outlet is sequentially connected with an indoor heat exchanger, a throttling device and an outdoor heat exchanger through a four-way reversing valve, an outlet of the outdoor heat exchanger is connected with an inlet of a liquid storage device through the four-way reversing valve, an outlet of the liquid storage device is connected with an inlet of the compressor, and the device further comprises a bypass pipeline; an inlet of the bypass pipeline is located between the compressor and the four-way reversing valve, an outlet of the bypass pipeline is located between the four-way reversing valve and the liquid storage device or located on the side or bottom of a shell of the liquid storage device, and a bypass electromagnetic valve is located on the bypass pipeline; under the heating condition, when the device stably runs, a refrigerant exhausted out of the compressor flows into the indoor heat exchanger through the four-way reversing valve and then flows back to the compressor through the throttling device, the outdoor heat exchanger, the four-way reversing valve and the liquid storage device, and a heating cycle is formed; and under the refrigerating condition, stable running is opposite to the heating cycle flow path. The control method of the device is further provided. In the cold starting process, the problem that a large number of refrigerants are gathered in the liquid storage device and the compressor, and consequently the pressure of an air inlet of the compressor is too low is solved.