31results about How to "Control cooling capacity" patented technology

The invention discloses a refrigeration device having a plurality of refrigeration compartments. The present invention relates to a refrigeration device (100) having a first refrigeration compartment (101-1) for storing refrigerated goods at a first temperature, said first refrigeration compartment comprising a first evaporator (103-1) with a first controllable expansion valve (105-1) at the refrigerant inlet (107-1) of the first evaporator (103-1), and having a second refrigeration compartment (101-2) for storing refrigerated goods at a second temperature, said second refrigeration compartment comprising a second evaporator (103-2) with a second controllable expansion valve (105-2) at the refrigerant inlet (107-2) of the second evaporator (103-2), in which refrigeration device a refrigerant outlet (109-1) of the first evaporator (103-1) is connected to the second controllable expansion valve (105-2) at the refrigerant inlet (107-2) of the second evaporator (103-2).

A cooling device contained in a casing unit of a computer includes a compressor, a condenser, an evaporator, a capillary tube functioning as expanding means, and a blower fan. These components constituting the cooling device are connected to one another by tubular pipes. Moreover, in the present invention, the compressor, the condenser, and the blower fan are placed at two-dimensionally different positions, and longitudinal directions of the condenser and the compressor are placed in an L shape in a vicinity of the blower fan. With this configuration, a two-dimensional size of the cooling device can be made compact, so that the cooling device would not limit a layout of other components contained in the casing unit.

A redundant cooling method and system are provided. The method comprises: providing a plurality of variable refrigerant flow air cooling units, wherein the number of air cooling units is at least one more than required to meet a selected maximum cooling load when operating the air cooling units at up to a maximum cooling capacity; coupling the plurality of variable refrigerant flow air cooling units in thermal communication with the air in a conditioned space; determining a select optimum operating condition for each of the plurality of variable refrigerant flow air cooling units which will result in about a lowest overall energy consumption for the redundant cooling system, while maintaining an average temperature of the air in the conditioned space at a required setpoint; and operating said plurality of air cooling units in about the select optimum operating conditions for each of the air cooling units.

The invention discloses a VRF air conditioning system recooling circuit flow control method and device; the method comprises the following steps: calculating a pressure difference between two ends of a second electron expansion valve according to pressure values of a first pressure sensor and a second pressure sensor; obtaining a first refrigerant flow of a heating inner machine, and obtaining a second refrigerant flow of a refrigeration inner machine; calculating a third refrigerant flow according to the first and second refrigerant flows; controlling opening degree of the second electron expansion valve according to the pressure difference and the third refrigerant flow. The VRF air conditioning system recooling circuit flow control method can accurately control refrigerating capacity of the refrigeration inner machine.

The invention discloses an air duct system of a reliability test bed for a drive line of a high-speed motor train unit, aiming at solving the problem that the service life of the test bed is greatly influenced when heat cannot be exhausted and dissipated timely. The air duct system of the reliability test bed for the drive line of the high-speed motor train unit comprises an air duct cement foundation (A), a cooling fan system (B), an air inlet cylinder system (C) and an air outlet cylinder system (D). The air inlet cylinder system (C) is fixedly arranged on the right end of the air duct cement foundation (A) by an air-inlet pre-embedded anchor hook square-shaped plate (h) pre-cast in the air duct cement foundation (A), the cooling air system (B) is arranged on a middle position of the air duct cement foundation (A) by a fan interface fixing frame assembly body (c) and a cooling fan damper assembly body (b) which are pre-cast in the air duct cement foundation (A), and the air outlet cylinder system (D) is arranged on the left end of the air duct cement foundation (A) through an air outlet duct welding plate (k) pre-cast in the air duct cement foundation (A).

The invention discloses a cooling system and magnetic resonance equipment. The cooling system comprises a cooling loop cooling a to-be-cooled component. The cooling loop has a first cooling loop, a second cooling loop and an adjusting device, wherein the first and second cooling loops partially share a pipeline; and the adjusting device can adjust flow amount of cooling medium flowing through the first and second cooling loops. The cooling system and the magnetic resonance equipment can adjust flow amount of the cooling medium according to practical cooling demands of the magnetic resonance system, and then control one-time refrigerating capacity of a water cooling system, so cooling resource waste can be reduced.

The invention relates to arrangement combined with cooling of a vehicle power device, in particular to a vehicle radiator. The invention further relates to a control method of the radiator. By means of the radiator, the heat dissipation capacity can be controlled precisely, the noise is lower, and the failure rate is lower. By means of the control method, the heat dissipation capacity can be controlled precisely, more energy is saved, and the noise is lower. The radiator comprises a switch clutch and at least two electromagnetic fan clutches. Input shafts of all the electromagnetic fan clutches are connected with an output shaft of the switch clutch through transmission devices. Output shafts of the electromagnetic fan clutches are connected with fans respectively. The total heat dissipation capacity of all the fans can be controlled by controlling the state of the switch clutch and the states of the electromagnetic fan clutches according to actual heat dissipation requirements, and the radiator and the control method can be applied to vehicle heat dissipation systems.

The invention provides a device for facilitating control of a substrate temperature in diamond synthesis equipment. The device comprises a substrate table and a substrate, the top of the substrate table is provided with a plurality of first heat conducting rods, the substrate is supported on the substrate table by the first heat conducting rods, and the cross sections of the first heat conductingrods are of polygonal structures. By arranging a plurality of the first heat conducting rods between the substrate table and the substrate for supporting, a worker can change the thermal conductivitybetween the substrate table and the substrate by changing the number of the first heat conducting rods, thereby achieving reasonable control of the heat dissipation capability of the substrate, sincethe cross sections of the first heat conducting rods are of the polygonal structures, no relative sliding occurs between the substrate table and the substrate, so that the thermal conductivity betweenthe substrate table and the substrate is away stable after the first heat conducting rods are well placed, and the control effect of the heat dissipation capability of the substrate is more reproducible. The device is applied to the field of the diamond synthesis equipment.

The invention relates to a high-accuracy automobile engine air inlet air conditioner unit with a cold source. The high-accuracy automobile engine air inlet air conditioner unit with the cold source is composed of a unit air supply control system and a unit refrigeration bypass control system. When the unit air supply control system runs, part of supplied air is conveyed to an engine for testing through an air supply outlet and the other part of the supplied air is adjusted through an inner circulating air returning inlet, an inner circulating air pipe and an inner circulating air valve and flows out through an inner circulating air returning outlet and then is mixed with fresh air which is filtered by an air filter through a fresh air inlet and via a fresh air valve. When the unit refrigeration bypass control system runs, one circuit of exhaust steam of a compressor is connected with a steam-liquid mixing head through a fin type condenser, a liquid feed stop valve, a drying filter and a liquid supply electromagnetic valve, the other circuit of the exhaust steam is connected with a bypass stop valve, exhaust air bypass volume of the steam-liquid mixing head from the compressor can be adjusted by the bypass stop valve. The high-accuracy automobile engine air inlet air conditioner unit with the cold source has the advantages of being high in response speed, high in control accuracy, high in efficiency, saving in energy, and capable of adapting to different weather conditions all year round, and stable in use.

The invention discloses a natural cooling refrigeration system, and aims at providing the energy-saving, efficient and stable natural cooling refrigeration system. The main point of the technical scheme in that the natural cooling refrigeration system comprises a compressor, wherein an oil separator is arranged on the compressor in a communication mode, a first filter and an air cooling condenserare respectively arranged on the oil separator in a communication mode, the compressor communicates with the first filter, the compressor, the oil separator and the first filter form a first circuit,a second filter is arranged on the air cooling condenser in a communication mode, a flash evaporation type economizer is arranged at the bottom of the second filter in a communication mode, the flashevaporation type economizer communicates with the compressor, the compressor, the oil separator, the air cooling condenser, the second filter and the flash evaporation type economizer form a second circuit, an evaporator is arranged on the flash evaporation type economizer in a communication mode, a natural cooling system is arranged on the evaporator, a water route of the natural cooling system and a water route of the evaporator communicate with each other in a series connection or parallel connection mode, and the natural cooling system is of an integrated structure or external separating type structure.

The invention discloses a cold drink machine with a power control type electronic expansion valve. The cold drink machine comprises a direct-current mixing motor, the electronic expansion valve, a compressor, a condenser and an evaporator, wherein the compressor, the condenser, the electronic expansion valve and the evaporator are connected in sequence end to end; a power signal of the direct-current mixing motor is transmitted between the direct-current mixing motor and the electronic expansion valve to control the opening degree of the electronic expansion valve so as to adjust the refrigerating capacity output of the compressor. The invention further discloses a control method with the same conception as the cold drink machine.

The invention provides a large-power light emitting diode (LED) active radiating device for a car lamp. The large-power LED active radiating device is characterized in that a heat plate is tightly adhered to the end surface of a cold source for a semiconductor refrigerating plate; a large-power LED is arranged at the top of the heat plate; the upper end surface of a radiator is tightly adhered to the end surface of a heat source for the semiconductor refrigerating plate; the bottom of the radiator is connected with a fan, the heat plate and the semiconductor refrigerating plate are arranged on an installing seat, and a cover plate arranged on the installing seat covers the exposed part of the heat plate; the output end of a heat dissipation temperature sensor arranged on the radiator, the output end of a heat conduction temperature sensor arranged on the heat plate and the output ends of environment temperature sensors arranged inside and outside a lamp are respectively connected to the input end of a micro-processing controller; and the refrigerating power supply control end of the micro-processing controller is connected with the power supply of the semiconductor refrigerating plate, and a fan motor control end is connected with the power supply for a fan motor, and a light source driving end is connected with the power end of the large-power LED. The large-power LED active radiating device has the advantage that active heat dissipation is adopted, so that the operating temperature of the LED is stabilized and controlled below the environment temperature.

The invention discloses an oil-gas separation device for an air leakage test of an engine piston. According to the oil-gas separation device, the problems of low oil-gas separation efficiency, complex structure and low universality in the prior art are solved. The oil-gas separation device comprises an oil-gas separator body, a heat sink and a cooling water control system, wherein the heat sink is obliquely arranged in the oil-gas separator body, a lower water chamber of the heat sink stretches out of an arc-shaped through hole in a right side cylinder wall of the oil-gas separator body, the upper end of a flow cavity of the heat sink stretches out of the left side of a top cover of the oil-gas separator body, the lower water chamber is in welded connection with the right side cylinder wall of the oil-gas separator body, the upper end of the flow cavity of the heat sink is in welded connection with the left side of the top cover of the oil-gas separator body, and the flow cavity is in welded connection with a contact part on the inner surface of the oil-gas separator body; and an electric two-way valve in the cooling water control system is mounted on a cooling water supply pipe connected with the cooling water tower, and a temperature sensor in the cooling water control system is mounted on a pipeline connected to an oil-gas outlet of the oil-gas separator body.

The invention discloses an air duct system of a reliability test bed for a drive line of a high-speed motor train unit, aiming at solving the problem that the service life of the test bed is greatly influenced when heat cannot be exhausted and dissipated timely. The air duct system of the reliability test bed for the drive line of the high-speed motor train unit comprises an air duct cement foundation (A), a cooling fan system (B), an air inlet cylinder system (C) and an air outlet cylinder system (D). The air inlet cylinder system (C) is fixedly arranged on the right end of the air duct cement foundation (A) by an air-inlet pre-embedded anchor hook square-shaped plate (h) pre-cast in the air duct cement foundation (A), the cooling air system (B) is arranged on a middle position of the air duct cement foundation (A) by a fan interface fixing frame assembly body (c) and a cooling fan damper assembly body (b) which are pre-cast in the air duct cement foundation (A), and the air outlet cylinder system (D) is arranged on the left end of the air duct cement foundation (A) through an air outlet duct welding plate (k) pre-cast in the air duct cement foundation (A).

Assembly for the beverage processing industry having several individual machines, including at least a blow molding machine, a labeling machine and a filler, including a common water cooling circuit with a radiator for components of the individual machines to be cooled and a corresponding method for cooling such an assembly.

The invention relates to the field of air conditioners and provides a cold water air conditioner and a cooling water unit and a cooling water control method thereof. The cooling water unit comprises acold water cooling pipeline, a unit cooling pipeline, a water pump, a cold water cooling device and an adjusting pipeline. The cold water cooling device is arranged on the cold water cooling pipeline, and the adjusting pipeline, the cold water cooling pipeline and the unit cooling pipeline are connected in parallel. The water pump is arranged on the cold water cooling pipeline, and at least of the adjusting pipeline and the unit cooling pipeline is provided with a flow adjusting valve; or the water pump is arranged on the unit cooling pipeline, and at least one of the cold water cooling pipeline and the adjusting pipeline is provided with a flow adjusting valve. The cooling degree of a condenser is controlled by controlling the unit cooling pipeline by adjusting the apertures of the flowadjusting valves, so that the condenser is prevented from being cooled excessively and a phenomenon that the pressure difference between a condensing pressure and an evaporating pressure is too low isavoided, and therefore, normal operation of a unit is kept for a long time in a low-temperature environment favorably.

The invention discloses an intelligent heat radiation type variable-frequency cabinet body. The intelligent heat radiation type variable-frequency cabinet body comprises a support framework, a first plate body, a second plate body, an upper plate body, a lower plate body, a limiting plate, an extruding plate, a push-pull rod, a control device, an air suction fan and an air filter cotton, wherein the support framework is in an oblong shape; the support framework consists of an upper fixed framework, a lower fixed framework and connecting columns; the upper fixed framework and the lower fixed framework are respectively of an oblong-shaped framework structure; the upper fixed framework is positioned just above the upper fixed framework; the four corners of the upper fixed framework and the corresponding four corners of the lower fixed framework are respectively connected by the connecting columns; the upper plate body is covered at the top part of the upper fixed framework; the lower plate body is covered at the bottom part of the lower fixed framework. The intelligent heat radiation type variable-frequency cabinet body has the advantages that the air suction fan is connected with thecontrol device, so that the output power of the air suction fan is adjustable, and the heat radiation ability of the cabinet body is controlled; while the heat radiation effect is guaranteed, the electric energy is effectively saved.

The invention relates to arrangement combined with cooling of a vehicle power device, in particular to a vehicle radiator. The invention further relates to a control method of the radiator. By means of the radiator, the heat dissipation capacity can be controlled precisely, the noise is lower, and the failure rate is lower. By means of the control method, the heat dissipation capacity can be controlled precisely, more energy is saved, and the noise is lower. The radiator comprises a switch clutch and at least two electromagnetic fan clutches. Input shafts of all the electromagnetic fan clutches are connected with an output shaft of the switch clutch through transmission devices. Output shafts of the electromagnetic fan clutches are connected with fans respectively. The total heat dissipation capacity of all the fans can be controlled by controlling the state of the switch clutch and the states of the electromagnetic fan clutches according to actual heat dissipation requirements, and the radiator and the control method can be applied to vehicle heat dissipation systems.

The invention discloses a high-precision oil cooler and a control method, wherein the high-precision oil cooler includes a refrigeration system and a circulating oil system, and the refrigeration system includes a main flow system and a side branch flow system; The circuit system includes a frequency conversion compressor, a condenser, a fan, an electronic expansion valve, and an evaporator connected in sequence; the fan is arranged on the condenser; the bypass flow system includes a bypass flow regulating valve, and the bypass flow The regulating valve is arranged in parallel with the condenser and the electronic expansion valve; the circulating oil circuit system includes an oil tank and an oil pump; the oil inlet of the oil tank communicates with the oil outlet of the machine tool, and the oil outlet of the oil tank communicates with the inlet of the oil pump The oil port is connected, the oil outlet of the oil pump is connected with the oil inlet of the evaporator, and the oil outlet of the evaporator is connected with the oil inlet of the machine tool. The high-precision oil cooler of the present invention can not only realize precise temperature control, but also save energy.

The invention relates to a high-accuracy automobile engine air inlet air conditioner unit with a cold source. The high-accuracy automobile engine air inlet air conditioner unit with the cold source is composed of a unit air supply control system and a unit refrigeration bypass control system. When the unit air supply control system runs, part of supplied air is conveyed to an engine for testing through an air supply outlet and the other part of the supplied air is adjusted through an inner circulating air returning inlet, an inner circulating air pipe and an inner circulating air valve and flows out through an inner circulating air returning outlet and then is mixed with fresh air which is filtered by an air filter through a fresh air inlet and via a fresh air valve. When the unit refrigeration bypass control system runs, one circuit of exhaust steam of a compressor is connected with a steam-liquid mixing head through a fin type condenser, a liquid feed stop valve, a drying filter and a liquid supply electromagnetic valve, the other circuit of the exhaust steam is connected with a bypass stop valve, exhaust air bypass volume of the steam-liquid mixing head from the compressor can be adjusted by the bypass stop valve. The high-accuracy automobile engine air inlet air conditioner unit with the cold source has the advantages of being high in response speed, high in control accuracy, high in efficiency, saving in energy, and capable of adapting to different weather conditions all year round, and stable in use.

The invention discloses a regulation control method for a cooling fan of a switch cabinet, and the regulation control method is applied to a cooling fan system. The cooling fan system comprises a temperature probe, a first set of fans and a second set of fans, and the temperature probe, the first set of fans and the second set of fans are installed at the same area. According to the method, after the current of the switch cabinet and ambient temperature are monitored, graded regulation control over the first set of fans and the second set of fans is achieved, and the refrigerating capacity of the fans is regulated; repeated start and stop of the fans are avoided, and the situation that the fans continuously run at high load even when the fans are not needed is avoided; therefore, the service life of the fans is prolonged; furthermore, by setting the first preset time before the first group of fans are stopped and the second preset time before the second group of fans are stopped, delayed shutdown of the fans is realized; and the possibility of damage due to frequent start and stop of the fans is further reduced.

The invention provides a device for facilitating control of a substrate temperature in diamond synthesis equipment. The device comprises a substrate table and a substrate, the top of the substrate table is provided with a plurality of first heat conducting rods, the substrate is supported on the substrate table by the first heat conducting rods, and the cross sections of the first heat conductingrods are of polygonal structures. By arranging a plurality of the first heat conducting rods between the substrate table and the substrate for supporting, a worker can change the thermal conductivitybetween the substrate table and the substrate by changing the number of the first heat conducting rods, thereby achieving reasonable control of the heat dissipation capability of the substrate, sincethe cross sections of the first heat conducting rods are of the polygonal structures, no relative sliding occurs between the substrate table and the substrate, so that the thermal conductivity betweenthe substrate table and the substrate is away stable after the first heat conducting rods are well placed, and the control effect of the heat dissipation capability of the substrate is more reproducible. The device is applied to the field of the diamond synthesis equipment.

The invention discloses a multi-stage compression refrigeration device. The multi-stage compression refrigeration device of the present invention includes: a compression part, which compresses refrigerant at a plurality of compression ends; a condensation part, connected to the compression part, wherein the refrigerant passing through the compression part is condensed through heat exchange; a liquid storage device which is connected to the condensation part and stores a condensed liquid refrigerant in the condensation part; a first expansion valve part which is arranged in the pipe connected to the liquid storage device and expands the refrigerant discharged from the liquid storage device; a gas-liquid separation part, which receives the refrigerant passing through the first expansion valve part and separates the refrigerant into a liquid refrigerant and a gaseous refrigerant, and supplies the gaseous refrigerant to the compression part; a second expansion valve part which is arranged in a pipe connected to the gas-liquid separation part and expands the refrigerant discharged from the gas-liquid separation part; and an evaporating part which is connected to the gas-liquid separation part and the compression part, and converts the liquid refrigerant discharged from the gas-liquid separation part into a gaseous refrigerant through heat exchange. The gas-liquid separation part may be provided downstream of the liquid storage part.

The invention relates to a package structure, which includes a lead frame and a package shell. The lead frame is used for installing chips and provided with lead trays, the package shell is used for packaging the lead frame, and the bottom surface of the package shell is provided with a plurality of hollow parts; the lead trays are exposed to the multiple hollow parts, and a plurality of exposed areas of the lead trays are formed; and the exposed areas of the lead trays are separated by the package shell to avoid penetration of soldering tin into the exposed areas of other lead trays when welding the corresponding exposed area of each lead tray. According to the package structure, bottom end trays of the lead frame are designed as the lead trays with arc-shaped parts, the chips can be supported, and a non-uniform strong magnetic field can be generated by the arc-shaped parts of the lead trays to provide an auxiliary magnetic field for the chips of a sensor needing the auxiliary magnetic field.

The invention discloses a cooling system and a magnetic resonance apparatus. The cooling system includes a cooling circuit for cooling the component to be cooled, and the cooling circuit includes a first cooling circuit, a second cooling circuit, and a regulating device, wherein, The first cooling circuit and the second cooling circuit share a part of the pipeline, and the regulating device is used for regulating the flow rate of the cooling medium flowing through the first cooling circuit and the second cooling circuit. The cooling system and the magnetic resonance equipment disclosed in the present invention can adjust the flow of the cooling medium according to the actual cooling demand of the magnetic resonance system, thereby controlling the cooling capacity of the primary water cooling system and reducing the waste of cooling resources.

The invention discloses an oil-gas separation device for an air leakage test of an engine piston. According to the oil-gas separation device, the problems of low oil-gas separation efficiency, complex structure and low universality in the prior art are solved. The oil-gas separation device comprises an oil-gas separator body, a heat sink and a cooling water control system, wherein the heat sink is obliquely arranged in the oil-gas separator body, a lower water chamber of the heat sink stretches out of an arc-shaped through hole in a right side cylinder wall of the oil-gas separator body, the upper end of a flow cavity of the heat sink stretches out of the left side of a top cover of the oil-gas separator body, the lower water chamber is in welded connection with the right side cylinder wall of the oil-gas separator body, the upper end of the flow cavity of the heat sink is in welded connection with the left side of the top cover of the oil-gas separator body, and the flow cavity is in welded connection with a contact part on the inner surface of the oil-gas separator body; and an electric two-way valve in the cooling water control system is mounted on a cooling water supply pipe connected with the cooling water tower, and a temperature sensor in the cooling water control system is mounted on a pipeline connected to an oil-gas outlet of the oil-gas separator body.

The invention discloses a high-precision oil cooling machine and a control method. The high-precision oil cooling machine comprises a refrigerating system and a circulating oil path system, and the refrigerating system comprises a main flow path system and a bypass flow path system; the main flow path system comprises an inverter compressor, a condenser, a fan, an electronic expansion valve and anevaporator which are sequentially communicated end to end; the fan is arranged on the condenser; the bypass flow path system comprises a bypass flow regulating valve, and the bypass flow regulating valve is connected with the condenser and the electronic expansion valve in parallel; the circulating oil path system comprises an oil tank and an oil pump; an oil inlet of the oil tank is communicatedwith an oil outlet of a machine tool, an oil outlet of the oil tank is communicated with an oil inlet of the oil pump, an oil outlet of the oil pump is communicated with an oil inlet of the evaporator, and an oil outlet of the evaporator is communicated with an oil inlet of the machine tool. According to the high-precision oil cooling machine, the accurate temperature control can be achieved, andmore energy is saved.

The invention discloses a laser light source system for balancing laser service life and eliminating speckles for a cinema. The laser light source system comprises a plurality of laser light source modules (1), wherein the back surface of each laser light source module (1) is mounted on the cold surface of a semiconductor refrigerating sheet (8) in a laminated mode, and the hot surfaces of all semiconductor refrigerating sheets (8) are mounted at the cooling end of a heat dissipation circulating system in the laminated mode; each laser light source module (1) is integrated with a temperature sensor (2), each temperature sensor (2) is connected with a temperature control system (3), each temperature control system (3) is connected with a constant-current driving system (6), and each constant-current driving system (6) is connected with the corresponding semiconductor refrigerating sheet (8). According to the laser light source system, the temperature of the laser light source is accurately controlled by rapidly switching the working states of the semiconductor refrigerating sheets, so that laser output of different wavelengths is realized, and the speckle problem of laser imaging iseliminated.

The invention belongs to the technical field of air conditioner control, and discloses a control method and a control device of an air conditioner. The air conditioner comprises a heat dissipation component, wherein the heat dissipation component comprises a first heat dissipation module, a second heat dissipation module and a superconductive heat pipe, a refrigerant pipe is arranged in the firstheat dissipation module, the first heat dissipation module and the second heat dissipation module are connected through the superconducting heat pipe, and the first heat dissipation module further comprises a first electromagnetic expansion valve. The control method comprises the steps of acquiring a first temperature of the second heat dissipation module, and controlling the opening degree of thefirst electromagnetic expansion valve according to the first temperature. According to the control method provided by the embodiment of the invention, the opening degree of the first electromagneticexpansion valve can be adjusted according to the temperature of the second heat dissipation module so as to dissipate different heat, and the heat dissipation capacity is improved.