1193results about "Refrigeration components" patented technology

A ventilation system including a ventilator; and an outdoor unit, wherein the ventilator includes a housing including a first intake, a second intake, a first outlet and a second outlet, a plurality of dampers to change flow paths of air flowing through the housing, first and second air blowers, a heat exchanger in the housing, and a processor to control the dampers and first and second air blowers to form a first flow path in which outside air flows through the heat exchanger, or form a second flow path in which room air flows through the heat exchanger, to thereby form a flow path in the ventilator, while air flows through the flow path, control the outdoor unit to form frost on the heat exchanger, and control the outdoor unit to stop operating based on a preset frosting termination condition so that the frost melts to clean the heat exchanger.

The invention relates to the technical field of refrigeration cycle, and discloses a dry filter of an air conditioner refrigeration cycle system, which comprises a shell, a liquid inlet at the front end of the shell and a liquid outlet at the tail end of the shell, and a front filter plate and a rear filter plate are respectively mounted in the hollow annular table in a sliding manner. The space of the front drying cavity is increased, so that when small particles generated by pulverization of a drying agent are led to the rear drying cavity, the drying agent in the rear drying cavity is kept in a compact state at the moment, and it is ensured that the rear drying cavity has the capacity of adsorbing moisture in a refrigerant; when the space of the rear drying cavity is increased, small particles generated by pulverization of the drying agent are discharged out of the drying cavity, at the moment, the drying agent in the front drying cavity is kept in a compact state, and it is ensured that the front drying cavity has the capacity of adsorbing moisture in the refrigerant. Therefore, small particles generated by pulverization of the drying agent can be effectively cleaned, and moisture in the refrigerant can be reliably removed.

A vehicle thermal management system includes a refrigerant system configured to cause, while refrigerant circulates along a refrigerant line, the refrigerant to sequentially pass through an external condenser and a first expansion valve, a component thermal management system including a battery or a power electric (PE) component connected by a coolant line and configured to perform, using the refrigerant distributed from the refrigerant system and coolant circulating along the coolant line, thermal management on the battery or the power electric (PE) component, and a heat-exchanger including a heat-exchange portion connected to the coolant line and provided to allow the coolant circulating through the component thermal management system to pass through the heat-exchange portion, wherein the heat-exchanger is provided on the refrigerant line between the external condenser and the first expansion valve and performs heat-exchange between the coolant passing through the heat-exchange portion and the refrigerant injected from the refrigerant line.

The invention provides an air source heat pump system. The air source heat pump system comprises a compressor, a fin heat exchanger, a shell tube heat exchanger and a gas-liquid separator, wherein the shell tube heat exchanger comprises a gas tube, a liquid tube, a heat exchange tube and a liquid separating device, the air source heat pump system further comprises a four-way valve, the four-way valve is correspondingly communication with the compressor, the gas-liquid separator, the fin heat exchanger and the gas pipe, the fin heat exchanger is in communication with the liquid separating device through a orifice plate and a first one-way valve; the fin heat exchanger is in communication with the liquid tube through an expansion valve and a second one-way valve; the first one-way valve is used for the one-way conduction of the fin heat exchanger to the liquid separating device; the second one-way valve is used for the one-way conduction of the liquid pipe to the fin heat exchanger. By the adoption of the system, a liquid storage device of the liquid refrigerant does not need to be added in the system, so that the cost is saved; a large amount of liquid refrigerant cannot flow back to the compressor after defrosting is finished; during the refrigeration mode, the refrigerant running shell pass does not need to be subjected to suction superheat, so that the air suction pressure and the operation efficiency of the refrigeration mode are improved; and the overall use valve of the system is less, and the reliability is high.

A refrigerant flow path module (40) includes a flow path unit (32) provided with a first refrigerant flow path (R1) and a second refrigerant flow path (R2) through which a refrigerant flows, and a casing (33) that accommodates the flow path unit (32), in which the flow path unit (32) is formed with a synthetic resin or a material containing aluminum as a main component, and the casing (33) is formed with a steel material.

The invention discloses a CO2 transcritical refrigeration system recooling gas-liquid separation device and method, two-stage throttling is adopted, and a recooler and a gas-liquid separator are arranged after first-stage throttling. The recooler takes low-temperature saturated gas shunted from an outlet of the evaporator as a cold source to cool a two-phase mixture subjected to primary throttling; saturated liquid separated by the gas-liquid separator enters the evaporator after being subjected to secondary throttling, and saturated gas flows back to an inlet of the recooler. On the basis of two rigid constraints, namely evaporation pressure reference and charge volume fixation, the equivalent condensation pressure which is physically locked is introduced into the transcritical cycle for the first time, so that the system obtains fixed high-pressure reference. Thermodynamic derivation shows that the recooling ratio is determined by evaporation pressure and uniqueness, and the operation is completely physically adaptive. Simulation results show that the COP under the air conditioner working condition reaches 3.038, is improved by 38.2% compared with that of a basic system and is superior to that of an existing split-flow supercooling technology (17.62%). The compressor only needs to maintain simple frequency modulation of evaporation pressure without a complex algorithm. The device is suitable for CO2 transcritical systems such as air conditioners, heat pumps and freezing and refrigerating.

The invention discloses an electronic expansion valve and an air conditioning system, and relates to the technical field of electronic expansion valves.The electronic expansion valve comprises a first valve needle and a valve port assembly, the valve port assembly comprises a connecting base, a valve port ring and a pressing sleeve, the connecting base comprises a limiting part, a connecting part located below the limiting part and a hollow inner cavity, and the valve port ring is arranged in the inner cavity; the valve port ring is arranged in the inner cavity and abuts against the limiting part, the pressing sleeve is connected with the connecting part, the valve port ring and the limiting part axially press the valve port ring, the valve port ring is provided with a valve port communicated with the inner cavity, the first valve needle is movably arranged on the connecting base, and the second valve needle is movably arranged on the connecting base. And a flow path through which the connecting seat is communicated with the valve port is opened and closed. The technical scheme provided by the invention aims to solve the problems of separation and internal leakage of the sealing ring caused by insufficient limiting of the sealing ring by a valve port piece under the condition of a large-diameter valve port of the electronic expansion valve.

To provide a refrigeration cycle system that can suppress malfunctions of the four-way valve at low ambient temperatures. [Solution] The refrigeration cycle device comprises a four-way valve and a control unit. The four-way valve has a compressor, an indoor heat exchanger, an expansion valve, and an outdoor heat exchanger, and switches the direction of flow of the refrigerant that is circulated by the compressor in a refrigerant circuit and connected to the refrigerant circuit. The control unit controls the compressor and switches between heating operation, in which the refrigerant is circulated in a heating cycle, cooling operation, in which the refrigerant is circulated in a cooling cycle with the opposite flow direction to the heating cycle, and defrosting operation, in which frost has formed on the outdoor heat exchanger due to heating operation is removed in the cooling cycle, by switching the four-way valve. When the control unit receives an operation stop signal and is performing defrosting operation, it stops the compressor after performing heating operation for a predetermined time or longer after the completion of defrosting operation.

The utility model discloses a high-pressure liquid storage tank of a vehicle-mounted air conditioner, which belongs to the technical field of liquid storage tanks and comprises a liquid storage tank main body, the liquid storage tank main body comprises a first tank body and a second tank body, the second tank body is positioned at the bottom of the first tank body, and a refrigerant filling pipe is arranged at one end of the top of the first tank body. A gas inlet pipe is arranged at the other end of the top of the first tank body, a gas outlet pipe is arranged at the top of the first tank body, a connecting mechanism used for connecting the first tank body and the second tank body is arranged at the top of the second tank body, and the first tank body and the second tank body can be conveniently disassembled; the interior of the first tank body and the interior of the second tank body are convenient to maintain, a drying agent is convenient to replace and the like, only corresponding parts need to be replaced when local damage occurs, overall replacement is not needed, the maintenance cost is reduced, a limiting mechanism can effectively prevent a circular rotating ring from rotating, and then the first tank body and the second tank body can fall off conveniently. And the connection reliability is improved.

An HEV mode and a BEV mode is a hybrid electric vehicle capable of traveling, comprising: a radiator; an air conditioner including a condenser and a pressure sensor for performing air conditioning in a room; a cooling fan that operates in response to the rotation of the engine to blow cooling air to the radiator and the condenser; and a control unit that controls the operation of the engine and the air conditioner, wherein the control unit reduces the amount of heat dissipation of the condenser when the high pressure of the cooler detected by the pressure sensor during traveling in BEV mode becomes equal to or higher than the first pressure.

The invention relates to a device for cooling a sputtering target (101), comprising a cooling element (102) with a contact surface (103) with which mechanical contact is made with the sputtering target (101), wherein the cooling element (102) is penetrated by at least one cooling channel (104), so that the cooling element (102) has at least one cooling channel inlet (105) and at least one cooling channel outlet (106), and wherein a fluid flows through the cooling channel (104), wherein a) the cooling channel outlet (106) is connected to the inlet of a compressor (109) by means of a first pipeline (107); b) the outlet of the compressor (109) is connected to the inlet of a pressure stage (113) by means of a second pipeline (110); c) a first sub-region of the second pipeline (110) extends through a first heat exchanger (13); d) the outlet of the pressure stage (113) is connected to the cooling channel inlet (105) by means of a third pipeline (114); e) the fluid is a coolant, wherein the coolant has a boiling temperature of lower than 0°C at a pressure of 1 bar and a boiling temperature of lower than -10°C at a pressure of 0.7 bar; and f) the pressure stage (113) is configured in such a way that it brings about a pressure reduction of at least 2 bar on average over time from the pressure stage inlet (112) to the pressure stage outlet (115).

The utility model provides a cooling device of a rock drill testboard, and relates to the technical field of mechanical engineering. The cooling device of the rock drill test bench comprises a water tank, a water cooler, a test bench rack, an air cooler and a hydraulic system, the test bench comprises a punched head and a drilling tool, the drilling tool is connected with the punched head, a first water guide pipe is arranged on the drilling tool, and a second water guide pipe is arranged on the punched head; the water tank is connected with the water cooler, the water cooler is connected with the first water guide pipe and the second water guide pipe, and the first water guide pipe and the second water guide pipe are both connected with the water tank. The water cooler is also connected with the hydraulic system; the water tank is connected with the air cooler which is connected with the water tank. The cooling water is conveyed to the drilling tool and the punched head through the first water guide pipe and the second water guide pipe to cool the high-temperature parts, the used cooling water is not directly discharged, but is cooled through the air cooler and then flows back into the water tank again, a cyclic utilization closed-loop system is formed, and waste of the cooling water is reduced.

Disclosed are a method and device for controlling an air conditioner. The air conditioner includes an outdoor heat exchanger, an indoor heat exchanger, a heat storage heat exchanger, a compressor, a four-way valve assembly, and a throttling assembly, wherein the outdoor heat exchanger is connected to the indoor heat exchanger by means of a first pipeline and a bypass, the outdoor heat exchanger is connected to the compressor by means of a second pipeline, the indoor heat exchanger is connected to the compressor by means of a third pipeline, the heat storage heat exchanger is arranged on the bypass, the throttling assembly is arranged on the bypass, the four-way valve assembly includes a first four-way valve and a second four-way valve, the first four-way valve is arranged on the second pipeline, and the second four-way valve is arranged on the third pipeline.

The utility model discloses a throttling device for a heat pump system, which comprises a heat pump system body, a rotating rod is rotatably mounted in the heat pump system body, a gear is fixedly mounted on the outer wall of the rotating rod, a fixing plate is fixedly mounted on the outer wall of the heat pump system body, and a connecting block is fixedly mounted on the inner wall of the fixing plate through a telescopic mechanism. A toothed plate is fixedly mounted on the outer wall of the connecting block through a connecting mechanism and meshed with the gear, a filter box is fixedly mounted on the outer wall of the heat pump system body, and a cleaning opening is formed in the outer wall of the filter box. By arranging the rotating rod, the gear, the toothed plate and other components, the toothed plate can be driven to move when the connecting block moves, the rotating rod can be driven to rotate when the toothed plate and the gear are meshed with each other, and the throttling plate can be driven to turn over when the rotating rod rotates, so that the throttling degree of the heat pump system can be flexibly controlled, and the fluid flow can be adjusted in time; efficient and stable operation of the system is guaranteed.

The application discloses an air conditioner and relates to the technical field of air conditioners. The air conditioner comprises a high-pressure pressure sensor configured to detect the exhaust pressure of a compressor; and a controller configured to periodically acquire the exhaust pressure of the compressor and the change rate thereof when the air conditioner operates in a reverse defrosting mode; determine whether the exhaust pressure reaches a first threshold P1 and the change rate reaches a first set value; if yes, control the compressor to operate at a reduced frequency and the frequency reduction amplitude is △H1; if no, when the exhaust pressure reaches a second threshold P2 and the change rate reaches a second set value, control the compressor to operate at a reduced frequency and the frequency reduction amplitude is △H2; wherein P1>P2 and △H1>△H2. By setting two different frequency reduction nodes and combining real-time judgment of the change rate of the exhaust pressure, a dynamic and conditional hierarchical frequency reduction control strategy is constructed, so that the dual optimization of defrosting efficiency and noise control is simultaneously realized under the premise of ensuring the defrosting effect.

The utility model relates to the technical field of air inlet and dust removal of a cooling-water machine, in particular to a high-dust-proof air-cooled cooling-water machine, which comprises a dust-proof air inlet mechanism arranged on a cooling-water machine body, the dust-proof air inlet mechanism comprises a front air inlet pipe and a rear air inlet pipe which are used for feeding air into the cooling-water machine body, and the front air inlet pipe is communicated with the rear air inlet pipe through a middle piece. And an atomizing nozzle is arranged at the top of the front air inlet pipe. The dustproof air inlet mechanism is additionally arranged on the cooling-water machine body to prevent dust and dust, and sand and dust in the air are prevented from entering the cooling-water machine body to cause adverse effects. According to the dustproof air inlet mechanism, large-particle gravels are blocked through the filter plate at the top of the air inlet box, then dust in air is removed through spraying, and finally the air is filtered for the last time through the filter element, so that the air entering the cooling-water machine body finally is clean and dustless, the energy consumption of the cooling-water machine is reduced, and the service life of the cooling-water machine is prolonged.

The utility model relates to the technical field of agent side heat exchanger, especially, it is a kind of new agent side valve plate isolation net structure, its adjustment structure, more not easy because of impurity accumulation blockage, installation dismounting is convenient, has improved material utilization, reduced raw material cost;Including equipment main body, equipment main body upper end is installation connection position, and equipment main body is installed with multistage filtering component.

The application discloses a compressor and an electrical appliance, the compressor comprising: a compressor body; a liquid accumulator in communication with the compressor body; a bracket arranged between the compressor body and the liquid accumulator and comprising a fixing part and a supporting part, the fixing part being fixedly connected with the compressor body through a plurality of fixing positions, the supporting part comprising two supporting parts at two ends of the fixing part in the extension direction of the bracket, and the two supporting parts abutting against the liquid accumulator, wherein the maximum spacing of the plurality of fixing positions in the extension direction of the bracket is W, the maximum diameter of the liquid accumulator is D1, W / D1 is greater than or equal to 0.22, and W / D1 is less than or equal to 0.24. According to the compressor provided in the application, the supporting rigidity can be enhanced, the rigidity of the connecting system of the liquid accumulator and the compressor body can be improved, the inherent frequency of the liquid accumulator can be improved, the low-frequency resonance of the liquid accumulator can be avoided, the vibration of the compressor can be reduced, the noise can be reduced, and the cost can be avoided from increasing.

A process for conversion of a first refrigeration system including a first medium temperature circuit and a first low temperature circuit configured to circulate a synthetic refrigerant to a second refrigeration system includes replacing the first low temperature circuit with a second low temperature circuit by adding a heat exchanger to the first refrigeration system such that the second low temperature circuit is in a heat exchange relationship with the first medium temperature circuit, replacing a condenser of the first medium temperature circuit with a gas cooler, and connecting the second low temperature circuit to the first medium temperature circuit via pipe connections such that the low temperature compressor is fluidly connected to a medium temperature compressor of the first medium temperature circuit.

A vapor-liquid separator includes a first flow path extending between a fluid inlet and a fluid outlet and including a helical portion, a second flow path extending between and fluidly transferring vapor from the first flow path to the vapor outlet and defining a helical portion, and one or more bridges fluidly coupling the first flow path to the second flow. The helical portion of the first flow path causes a reduction in static pressure and an increase in velocity of a fluid flowing through the first flow path and generates a vapor that flows into the second flow path via the one or more bridges. The vapor received within the second flow path is discharged from the vapor outlet and the fluid flowing through the first flow path is discharged from the fluid outlet.

The utility model relates to the technical field of air conditioners, and provides a support structure and a multi-split air conditioner system.The support structure comprises a chassis and a support assembly, the support assembly is arranged on the chassis and provided with a first installation position and a second installation position adjacent to the first installation position, and the first installation position is used for installing an oil separator; the second mounting position is used for mounting an electromagnetic valve. According to the support structure provided by the utility model, the first mounting position for mounting the oil separator and the second mounting position for mounting the electromagnetic valve are designed on the support assembly, so that the integrated design of the oil separator and the electromagnetic valve on the support assembly is realized; the bracket structure integrated with the oil separator and the electromagnetic valve can realize quick assembly in the multi-split air conditioner, so that the production efficiency is improved.

The objective is to reduce carrier ripple current and to reduce the outflow of carrier ripple current to the power supply. [Solution] The power converter 50 includes a rectifier circuit 2 that converts the three-phase AC input voltage (phase-to-phase voltage Vac) input from AC input terminals 55r, 55s, and 55t into a DC voltage; a converter 31 that outputs an output voltage Vo set to a set voltage value from the DC voltage output from the rectifier circuit 2; a smoothing capacitor 6 connected between the positive converter output terminal (DC output terminal 64p) and the negative converter output terminal (DC output terminal 64n) of the converter 31 that outputs the output voltage Vo; an LC filter 30 having a filter reactor 8 and a filter capacitor 9 arranged between the AC input terminals 55r, 55s, and 55t and the converter 31; and a controller 10 that controls the converter 31.

The air conditioner liquid storage device comprises a body internally provided with a liquid storage cavity, the body comprises a shell, a liquid inlet end cover is arranged at one end of the shell, a liquid outlet end cover is arranged at the other end of the shell, a liquid inlet pipe is installed on the liquid inlet end cover, and a liquid outlet pipe is installed on the liquid outlet end cover; the liquid inlet end cover is provided with a liquid inlet protection pipe facing one side of the shell, and the liquid outlet end cover is provided with a liquid outlet protection pipe facing one side of the shell. A filter assembly is detachably mounted between the liquid outlet end cover and the shell and comprises a frame body and a filter screen; the liquid outlet end cover is detachably connected with the shell, a supporting structure used for abutting against the frame is arranged on the side, facing the shell, of the inner wall of the liquid outlet end cover, and a limiting structure used for limiting the frame is arranged on the portion, corresponding to the supporting structure, of the inner wall of the shell. The liquid storage device is stable in structure, high in strength and reliable in sealing, the liquid outlet end cover can be detached regularly, the filtering assembly can be taken out to be cleaned or replaced, the filter screen is prevented from being blocked, long-term use of the liquid storage device is guaranteed, and working performance is reliable.

The invention relates to a method for controlling a thermal conditioning system comprising: - a main refrigerant circulation loop (A) (10) including: - a compressor (7), - a first heat exchanger (1), - a first expansion valve (31), - a second expansion valve (32), - a second heat exchanger (2), - a first bypass branch (B) including a third expansion valve (33), - a fourth bypass branch (E) including a fifth expansion valve (35), the method comprising the steps: (ii) circulating high-pressure refrigerant through the first heat exchanger (1), through the first branch (B) and through the fourth branch (E), (iv) reducing the refrigerant from the first heat exchanger (1) and the fourth branch (E) to an intermediate pressure, and circulating it through the third heat exchanger (3),(vi) reduce the refrigerant from the third heat exchanger (3) to a low pressure and mix it with the low-pressure refrigerant from the first branch (B). Figure 3,

The application relates to the technical field of heat pumps, in particular to a fluorine cooling and water cooling coupled heat dissipation driving plate system, which comprises a compressor, a first heat exchanger, a second heat exchanger, a first electronic expansion valve and a driving plate radiator, one end of the compressor is communicated with one end of the first heat exchanger, the other end of the compressor is communicated with one end of the second heat exchanger, the other end of the first heat exchanger is communicated with the other end of the second heat exchanger, the first electronic expansion valve is connected in series in a passage communicated between the first heat exchanger and the second heat exchanger, and a water inlet pipe of the first heat exchanger, the driving plate radiator and a water outlet pipe of the first heat exchanger are communicated in sequence. The fluorine cooling and water cooling coupled heat dissipation driving plate system can overcome the low heat exchange efficiency of the existing fluorine cooling heat pump unit, can improve the heat exchange efficiency under the condition that the ambient temperature is relatively low, can reduce the waste of resources, and can improve the energy-saving economy of the system.

A heat pump system for a vehicle may efficiently adjust the temperature of heating elements by using one chiller where a refrigerant and a coolant exchange heat. At the same time, the heat pump system may efficiently perform cooling and heating of a rear seat by using a rear heating, ventilation, and air conditioning (HVAC) module provided with one heat-exchanger.

A thermal management system for a vehicle is disclosed. The system includes a compressor, a condenser, a refrigerant branch part, a first refrigerant line branching off from the refrigerant branch part toward one side, provided with a first expansion valve and a first heat exchanger, and configured to allow a refrigerant to circulate therethrough, a second refrigerant line branching off from the refrigerant branch part toward the other side, provided with a second expansion valve and a second heat exchanger, and configured to allow a refrigerant to circulate therethrough, an internal heat exchanger configured to allow the refrigerant, which passes through the condenser and moves to the refrigerant branch part, and the refrigerant, which passes through the first heat exchanger or the second heat exchanger and moves to the compressor, to exchange heat with each other, and a bypass line connected to allow refrigerant to bypass the internal heat exchanger.

The utility model discloses an air conditioning unit. The air conditioning unit comprises a compressor, an oil tank, an evaporator and a cooling separator. The oil tank is connected with the compressor and used for receiving high-temperature lubricating oil output by the compressor. The cooling separator is connected with the oil groove and the evaporator and used for separating the mixture of the low-temperature lubricating oil and the liquid refrigerant output by the evaporator and receiving the high-temperature lubricating oil, so that the mixture of the low-temperature lubricating oil and the liquid refrigerant exchanges heat with the high-temperature lubricating oil, and medium-temperature lubricating oil is obtained. The cooling separator is further connected with an air suction port of the compressor so that the liquid refrigerant can be gasified into a gaseous refrigerant. The oil groove is further used for receiving medium-temperature lubricating oil. The compressor is used for receiving and compressing a gaseous refrigerant. The liquid refrigerant is gasified in the cooling separator instead of being gasified in the oil tank, and the low-temperature lubricating oil is kept at a higher temperature after heat exchange, so that the problem of lower oil temperature of the lubricating oil caused by the gasification of the liquid refrigerant in the oil tank is avoided, and the air conditioning unit is prevented from alarming and stopping caused by unstable oil supply.

A sensor-integrated expansion valve includes: a PT sensor installed in a sensor hole of a valve body to detect pressure and temperature of refrigerant in a refrigerant flow path, the PT sensor including a sensor body assembled to the valve body portion around the sensor hole, a sensing rod inserted from the sensor body into the sensor hole and having an end portion exposed into the refrigerant flow path, and a sensor circuit board configured to process data on the pressure and the temperature of the refrigerant detected by the sensing rod and transmit the data to a main circuit board of the on the valve body; a thread fastening assembly part configured to threadedly fasten and remove the PT sensor to and from the sensor hole of the valve body; and an electrical connection part configured to constantly electrically connect the sensor circuit board to the main circuit board.

To provide a compressor and refrigeration cycle system that offer excellent installability while also being able to utilize the supercharging effect. [Solution] The compressor comprises a sealed container, an electric motor, a compression mechanism, and an accumulator 20 connected to the compression mechanism. The accumulator 20 comprises a stepped cylindrical container 31, a partition plate 39 that divides the internal space of the container 31 into a gas-liquid separation chamber SR and a buffer chamber BR, an inlet pipe 40 connected to the gas-liquid separation chamber SR, a connecting pipe 41 that passes through the partition plate 39 and connects the gas-liquid separation chamber SR and the buffer chamber BR, and at least one outlet pipe 43 connected to the buffer chamber BR. The at least one outlet pipe 43 is provided on the side of the container 31 where the buffer chamber BR is located, and the maximum outer diameter D1 of the container 31 where the gas-liquid separation chamber SR is located is larger than the maximum outer diameter D2 of the container 31 where the buffer chamber BR is located.