50results about How to "Reduce suction temperature" patented technology

The invention provides a heat pump system and an air conditioner. The heat pump system comprises two or more stages of compressors, an evaporator (5) and a condenser (6), and further comprises a flashdevice, the flash device can guide gas generated by flash into the two or more compressors, at least one cooler is further arranged between at least two adjacent compressors and can be used for cooling the exhaust gas of one compressor in the two adjacent compressors, and then enters the other one of the two adjacent compressors to be compressed together with the gas generated by flash generationof the flash device. According to the heat pump system and the air conditioner, the suction temperature of all the compressors except the lowest-stage compressor can be reduced, the final exhaust temperature of a compression system is reduced, the energy consumption of the compressor is reduced, so that the heat energy efficiency of the heat pump system is improved.

The invention belongs to the technical field of air conditioners, and particularly relates to an air conditioner and an oil return control method thereof. The air conditioner and the oil return control method thereof aim to solve the problem that the exhaust temperature of a compressor is too high due to the oil return mode of the existing air conditioner. The air conditioner comprises a compressor, a heat exchanger and an oil separator, wherein a first oil return branch and a second oil return branch are arranged between an air inlet of the compressor and an oil outlet of the oil separator inparallel, the first oil return branch directly makes the air inlet of the compressor connect with the oil outlet of the oil separator, and the second oil return branch makes the air inlet of the compressor with the oil outlet of the oil separator after flowing near the heat exchanger. The oil return control method comprises the following steps that1, outdoor ambient temperature is acquired; 2, according to the outdoor ambient temperature, the first oil return branch or the second oil return branch is selectively communicated to adaptively change the oil return temperature of the lubricating oil, so that the reflux temperature of the lubricating oil can always be matched with the exhaust temperature required by the compressor.

The invention discloses a high temperature heat pump system for distillation. Through the adoption of the system, high temperature steam for heating materials at the bottom of a distillation tower can be generated; meanwhile, cold quantity generated by the system can be used for condensing output products at the top of the distillation tower. According to the invention, the heat pump system is connected with a distillation system through two heat exchangers; the gas distilled at the upper part of the distillation tower is cooled through an evaporator of the heat pump, and latent heat in the gas is absorbed and supplied to the heating side of the tower bottom through heat pump cycle. The high temperature heat pump system for the distillation, disclosed by the invention, has the advantages that the temperature of a refrigerant for heating the materials at the bottom of the tower is increased to 150 DEG C through the adoption of a vortex tube and the application places of the heat pump in the distillation system are greatly expanded.

The invention relates to the field of air conditioners, and provides a method of reducing an operating load of a compressor and an air conditioner. A refrigeration control method comprises the following steps of acquiring a condenser coiler temperature in a refrigerating condition; and reducing an air speed gear of an indoor fan in a condition that the acquired condenser coiler temperature is higher than a temperature threshold value corresponding to the existing air speed gear. The suction temperature and the suction pressure of the compressor are reduced by reducing the air speed gear of theindoor fan, so that the exhausting temperature and the exhausting pressure of the compressor are further reduced. The operating load of the compressor is reduced timely, so that shutdown caused by overload protection of the compressor in a high-temperature and high-load condition is avoided when the air conditioner refrigerates.

The invention relates to the technical field of air conditioning, in particular to a control method of an air conditioner and the air conditioner. The problem that a condenser is easy to block in a sand and dust weather is solved; the air conditioner comprises a compressor, a condenser, a throttling device and an evaporator which are connected in sequence; the condenser is provided with an external fan, and the evaporator is provided with an internal fan; the air conditioner further comprises a pressure reducing branch, the two ends of the pressure reducing branch respectively communicate witha liquid outlet of the throttling device and an air suction port of the compressor, and a valve mechanism is arranged on the pressure reduction branch; and the control method comprises the followingsteps that an operation mode of the air conditioner is acquired; when an operation mode is a sand and dust mode, the external fan is controlled to reduce the speed, and the valve mechanism is controlled to be opened at the same time, before or after the external fan begins to decrease the speed. Through the control mode, under the premises that the running effect of the air conditioner is guaranteed, the control method of the air conditioner can reduce the suction of the wind and sand of an outdoor unit, and the service life of the air conditioner is prolonged.

The invention discloses a top-air-intake electronic cigarette atomizing device, which comprises an inner tube, an inner sleeve, an outer sleeve, an air distributing seat, an air-liquid diversion seat and a base. The inner tube, the inner sleeve and the outer sleeve are fixedly connected from two ends by virtue of the air distributing seat and the air-liquid diversion seat. An air suction passage is formed in the inner tube; an annular air intake path is formed between the inner tube and the inner sleeve; and an annular liquid storage chamber is arranged between the inner sleeve and the outer sleeve. The air distributing seat is provided with an air outlet and an air inlet; and the air outlet and the air inlet are sealed and separated by virtue of the inner tube. The air-liquid diversion seat is provided with an air vent and a liquid guide hole; an atomizing chamber is arranged in the air-liquid diversion seat; the air vent communicates the annular air intake path and an air inlet of the electronic cigarette atomizing chamber; and the liquid guide hole communicates with the annular liquid storage chamber and an oil inlet of the electronic cigarette atomizing chamber. The base is arranged at the lower side of the air-liquid diversion seat; the base is of a barrel-shaped structure provided with a single bottom; and the barrel wall of the barrel-shaped structure is in sealing connection to the outer wall of the air-liquid diversion seat. With the application of the atomizing device disclosed by the invention, top air intake is achieved, and the bottom of the atomizing device is relatively sealed, so that liquid leakage is avoided; and meanwhile, an effect on cooling electronic cigarette smoke is achieved.

The invention discloses a moderate-and-low temperature integrated cold storage/refrigeration system with the function of exhaust and defrosting. The system comprises a moderate-and-low temperature compressor unit, a moderate-and-low temperature evaporator, control valves, a regulating valve, a one-way valve and an expansion valve; and switchover control is carried out between the refrigeration circulation and the defrosting circulation by the action combination of a plurality of control valves. The invention also discloses a method for switching between two working states in the system. When a first control valve is open, a second control valve is closed, and a fourth control valve is closed to the refrigerant pipeline of a liquid receiver, refrigeration circulation is carried out; when the first control valve is closed, the second control valve is open, and the fourth control valve is closed to the refrigerant pipeline of an inter cooler, exhaust and defrosting are carried out. By adopting the system and the switchover method in the invention, the refrigeration circulation and the exhaust and defrosting circulation are realized, and the heat exchange between a moderate temperature system and a low temperature system can be used for improving the operating efficiency of the entire system.

The invention relates to internal cooling, which is a cooling method adopted by an adiabatic internal combustion engine and an opaque and adiabatic internal combustion engine. The internal cooling method aims to solve the technical problem that the adiabatic internal combustion engine cannot be normally used due to over high temperature. The internal cooling method adopts the technical scheme that water mist is sprayed into an air inlet manifold and fully mixed with air, so as to form mixed gas; the mixed gas passes through four strokes of an internal combustion engine and can cool and reduce the working temperature and the air exhaust temperature; and the water content of the mixed gas cannot exceed a certain range, and the normal combustion of fuel oil cannot be influenced within the range.

The invention provides a double-temperature condensing two-stage compressing heat pump system. The double-temperature condensing two-stage compressing heat pump system is characterized by comprising a high pressure stage compressing mechanism, a low pressure stage compressing mechanism, a high temperature stage condensing mechanism, a low-temperature stage condensing mechanism, a high temperature stage evaporation mechanism, a low temperature stage evaporation mechanism, a frictional condensing mechanism, a heat exchanging mechanism, a first throttle mechanism, a second throttle mechanism and a third throttle mechanism; the high pressure stage compressing mechanism, the high temperature stage condensing mechanism, the frictional condensing mechanism, the low temperature stage condensing mechanism, the first throttle mechanism, the low temperature stage evaporation mechanism, the low pressure stage compressing mechanism and the heat exchanging mechanism are sequentially connected to form into a loop; the frictional condensing mechanism is connected with the second throttle mechanism and the third throttle mechanism; the third throttle mechanism is connected with the high pressure stage evaporation mechanism; the high pressure stage evaporation mechanism is connected with the low pressure stage compressing mechanism; the second throttle mechanism is connected with the heat exchanging mechanism. The double-temperature condensing two-stage compressing heat pump system has the advantages of reducing energy loss, improving stability of system operation, meanwhile enabling low temperature heat source in different stages to be used and enabling heat of a low temperature condensing mechanism to be fully used.

A reaction-speed-controllable chemical oxygen self-rescuer comprises a soft mask, a spiral hose, a reactor and an air sac, wherein the soft mask is provided with a goggle. Spacing cotton is fixed on the soft mask and corresponds to the nose bridge of a user. Oxygen generating agent is filled in the reactor, one end of the spiral hose is connected with the soft mask, and the other end of the spiral hose is connected with the reactor. The reactor is connected with the air sac through a pipeline, and the air sac is provided with an air plug. In case of accidents in a well, oxygen can be inhaled. Besides, the chemical oxygen self-rescuer is low in inhalation temperature and resistance, good in CO2 absorbency and light in weight, and self-rescue ability in mining disaster is improved.

The present invention relates to a spray device of a high temperature air-conditioning refrigeration system, which belongs to the air-conditioning device technical field. The present invention is characterized in that a dry filter outlet copper pipe is connected with a copper pipe, the copper pipe is electrically connected with an electromagnetic valve, the electromagnetic valve is connected with a spray capillary pipe, the spray capillary pipe is connected with the copper pipe, and the copper pipe is connected with an air suction pipe. The present invention has the advantages that the structure is simple, severe and reasonable, the production cost is low, and the control is convenient, the air discharge temperature is effectively reduced through spraying liquid refrigerant to the air suction port of a compressor, the operation state of the compressor is obviously improved, thereby the normal operation of the air conditioner in an outside high temperature environment with 75 DEG C is ensured.

Provided are an absorbing/compressing mixed cycle system with a liquid spraying loop and a heat pump heating method. The invention relates to the absorbing/compressing mixed cycle system with the liquid spraying loop. A generator (1), an absorber (9), a second solution flowing path and the liquid spraying loop are included, the generator comprises a generator first heat exchanging channel and a generator second heat exchanging channel; the absorber (9) comprises an absorber first heat exchanging channel and an absorber second heat exchanging channel; a refrigerating agent dilute solution generated in the generator second heat exchanging channel flows through a solution pump (8) and then flows to the absorber second heat exchanging channel; refrigerating agent dry gas and a refrigerating agent saturated solution are generated in a compressor; and the refrigerating agent saturated solution in the refrigerating agent flowing path flows through an ejector and then enters a mixer (4), and is mixed with refrigerant agent wet gas coming from the generator second heat exchanging channel in the mixer (4). Compared with the prior art, the absorbing/compressing mixed cycle system with the liquid spraying loop remarkably lowers the gas absorbing temperature of the compressor, the power consumption of the compressor is lowered, and the system COP is improved.

The invention relates to the technical field of refrigeration, and discloses a rectification type auto-cascade refrigeration system with a pre-cooling function. The system comprises a rectification type auto-cascade refrigeration loop and a pre-cooling loop, the pre-cooling loop is coupled with the rectification type auto-cascade refrigeration loop into a whole through a tower top subcooler, a tower top heat exchanger and a kettle bottom subcooler in the rectification type auto-cascade refrigeration loop; the cooling capacity is provided for the rectification process; the tower top temperatureof the rectifying device can be kept stable and at a target temperature; a separation effect and an oil removal effect in the rectification process are ensured; the capacity of the system for copingwith severe working conditions is enhanced, the supercooling degree is provided for working media of the tower top and the kettle bottom at the same time, the air suction temperature of a compressor is reduced, the operation working condition of the compressor is improved, reliable and stable system operation is guaranteed, the refrigeration performance coefficient of the system is increased, andthe operation cost is reduced.

The invention provides a refrigerator system using a tiny moving-magnetic type series-connection double-stage linear compressor. The refrigerator system comprises the moving-magnetic type series-connection double-stage linear compressor, a cold storing and refrigerating system and a freezing and refrigerating system. The cold storing and refrigerating system comprises a compressor, a condenser, a dry filter, an electromagnetic valve 1, a cold storing chamber capillary pipe, a cold storing chamber evaporator and a liquid storing device 1. The freezing and refrigerating system comprises a compressor, a condenser, a dry filter, an electromagnetic valve 2, a freezing chamber capillary pipe, a freezing chamber evaporator and a liquid storing device 2. The refrigerator system adopts the tiny moving-magnetic type series-connection double-stage linear compressor, and is compact in structure, small in size, free of oil lubrication and high in efficiency. The refrigerator system has three operation modes which comprise a single cold storage operation mode, a single freezing operation mode and a cold storing and freezing simultaneous operation mode. According to the refrigerator system, by the adoption of the series-connection double-stage linear compressor, the pressure ratio can be increased effectively, and lower temperature can be obtained.

The invention discloses a solar and air energy heat pump water heater control method and a system. The solar and air energy heat pump water heater comprises a main pipeline which is connected to a position between an outlet of a condenser and an inlet of an evaporator and an auxiliary pipeline which is connected to a position between an outlet of the condenser and an outlet of the evaporator, a main throttling element is arranged in the main pipeline, and an auxiliary throttling element is arranged in the auxiliary pipeline. The control method comprises the following steps that the opening degree of the main throttling element is detected, and when the opening degree of the main throttling element is maximum, the air suction superheat degree delta Ts and the air exhaust superheat degree delta Tp of a compressor are obtained, and when the air suction superheat degree delta Ts is larger than or equal to T11 and the air exhaust superheat degree delta Tp is larger than or equal to T12, the auxiliary throttling element is started. According to the method, through control, when evaporation overheating occurs, the auxiliary pipeline is opened, one path of refrigerant is throttled and cooled through the auxiliary pipeline, the other path is evaporated through an evaporator, and the evaporated overheating refrigerant and the low-temperature refrigerant throttled through the auxiliary pipeline are mixed and gathered to be sucked into the compressor, so that the air suction temperature is reduced, the air exhaust of the compressor is reduced, and a unit runs more reliably.

The invention discloses a precise temperature control system suitable for factory cooling water. The precise temperature control system comprises a PCW factory service cooling water system used for cooling factory service cooling water, a compressor refrigerant refrigerating system used for changing low-temperature and low-pressure refrigerant gas into high-temperature and high-pressure gas and a circulating liquid system used for supplying circulating liquid with stable temperature control to client equipment. According to the precise temperature control system, the problems that the coverage range of the temperature control range of an existing refrigerating system is not wide, and the opening degree of an electronic expansion valve cannot be adjusted to be too small can be solved.

The invention relates to a miniature moving-magnetic series-connection two-stage linear compressor which comprises a low-pressure-stage compressor, a middle kit and a high-pressure-stage compressor. The high-pressure-stage compressor and the low-pressure-stage compressor are oppositely arranged, are the same in structure and each comprise a shell, an overall rack, a linear motor and a rotor part. An air inlet is formed in the middle kit, saturated refrigerant steam coming out of a middle cooler enters a cavity of the middle kit through the air inlet, is mixed with refrigerant gas exhausted by the low-pressure-stage compressor in a compressed mode, and then enters an air suction cavity of the high-pressure-stage compressor through a round air suction hole in the overall rack of the high-pressure-stage compressor. When a high-pressure-stage compressor piston moves towards the compression cavity side, refrigerant gas is compressed, and two-stage compression is achieved. The low-pressure-stage linear compressor and the high-pressure-stage linear compressor are connected in series for operation, the pressure ratio and efficiency are improved, the exhaust temperature is reduced, and vibration and noise of the compressor are reduced.