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469 results about "Refrigeration compressor" patented technology

Intelligent control method and system for refrigeration house

The invention provides an intelligent control method and system for a refrigeration house, and relates to the field of control. A refrigeration house space thermodynamic diagram model is constructed based on temperature measuring points, and a historical temperature sequence, a house door opening and closing state sequence, cargo warehouse-in and warehouse-out records and external environment parameters are obtained; predicting a temperature change track of each node in a future control time domain by using a space-time diagram convolutional network; establishing an equipment health state evaluation model based on a hidden Markov model, evaluating the health state of each refrigeration compressor unit and quantifying the health state into an equipment health index; and solving the rolling optimization objective function in the control time domain to obtain an optimal start-stop time sequence and operation power combination instruction of each refrigeration compressor unit and auxiliary equipment, and issuing the combination instruction to a corresponding field controller for execution. The temperature change of each area in the refrigeration house can be accurately predicted, the operation load can be reasonably distributed according to the health condition of the unit, the service life of equipment is effectively prolonged, and the sudden failure risk and the maintenance cost of the whole life cycle are reduced.
Owner:中建五局第四建设有限公司

Intelligent start-stop control method and system for magnetic suspension refrigeration compressor

The invention discloses an intelligent start-stop control method and system for a magnetic suspension refrigeration compressor, and the method comprises the steps: obtaining a position perception enhancement source through collecting and analyzing the current response data of a magnetic bearing coil, and extracting the current response change characteristics; rotor position estimation is carried out based on current response change characteristics, a positioning precision driving source is extracted from estimation deviation, and a non-impact starting excitation current instruction is generated; a multi-sensor fusion data network is established, configuration is reconstructed through an abnormal response activation signal, and a degradation operation fault-tolerant mode is formed; converting a response preparation gain according to the shutdown instruction signal, performing shutdown state evaluation in combination with signal reconstruction configuration, and generating an emergency shutdown trigger condition; and the power supply state of a bus capacitor is detected, gradient control potential is released, the active damping control opportunity is determined, a damping force control instruction is generated, finally intelligent start-stop control over the magnetic suspension refrigeration compressor is achieved, and safe and reliable operation of the system under various working conditions is ensured.
Owner:SHANGHAI ENVIRONMENT PROTECTION GROUP +1

Air source heat pump control method and device of magnetic suspension refrigeration compressor

The invention discloses an air source heat pump control method and device for a magnetic suspension refrigeration compressor. Adjusting deviation mapping is generated by constructing a temperature response curve and a load demand curve and executing relevance evaluation, an out-of-tolerance mismatch window is detected, and load sudden change characteristics are extracted to determine an adjusting period; positioning an overlapping section in an adjusting period, establishing a refrigerant flow distribution grid to identify a cooperative constraint degree, executing resource conflict identification, marking conflict positions, generating comprehensive weights, and arranging the comprehensive weights in a descending order to form a scheduling sorting table to recombine a compressor operation time sequence; adjusting capacity is preset and fused with a temperature response curve to form an adjustable power range, an area with insufficient margin is identified, margin compensation parameters are generated, and a dynamic adjusting limit is determined; the method comprises the following steps: performing time sequence splitting on environment temperature change based on a dynamic adjustment limit to generate a sudden change component and a slow change component, respectively generating a compressor speed regulation sequence and a heat exchanger adjustment sequence, fusing and establishing a control instruction, and realizing supply and demand accurate matching, resource conflict resolution and dynamic response optimization.
Owner:YAZHIJIE INTELLIGENT EQUIP (JIANGSU) CO LTD +2

A combined projection welding process and device for a refrigeration compressor housing

The present invention discloses a combined projection welding process for a refrigeration compressor housing, and discloses a method of combined welding of multiple workstations through one device and one process. For metal workpieces with different shapes, materials, positions, etc., the combined projection welding of the housing assembly is completed by performing one-time clamping and positioning welding on the housing through a combined projection welding device for the refrigeration compressor housing, which is easy to realize an automated projection welding production line; a combined projection welding device for a refrigeration compressor housing is also disclosed. By setting a combined power head with a combined power piston and a pushing device inside, an upper electrode seat and a lower electrode seat, the clamping and projection welding operations of multiple workpieces are realized simultaneously, effectively accelerating the production rhythm and improving production efficiency; by setting a combined power piston and multiple pushing devices at the tops of different upper electrodes, and lower electrodes with different depths at the lower electrode seat, the welding quality of simultaneous projection welding of different workpieces is improved, and the energy consumption and manufacturing cost of the device are reduced.
Owner:HUANGSHI DONPER COMPRESSOR CO LTD

Solution concentration maintaining and adding device for heat source tower

The technical scheme of the utility model discloses a heat source tower solution concentration maintaining and adding device which comprises a refrigeration compressor, a coil pipe type evaporation heat exchanger, an air cooler, a condenser and a gas-liquid separator which are sequentially connected, and a hot gas bypass electromagnetic valve is arranged between an inlet of the refrigeration compressor and an inlet of the condenser. The coil pipe type evaporation heat exchanger is arranged in the vacuum evaporation tank, and an outlet of the solution tank is sequentially connected with the liquid supplementing electromagnetic valve, the heat recovery plate type heat exchanger and a liquid inlet of the vacuum evaporation tank; a steam outlet of the vacuum evaporation tank is sequentially connected with a condenser and a purified water tank; an air outlet of the vacuum evaporation tank is connected with the purification water tank, the purification water tank is connected with a gas inlet of the vacuum ejector, and a liquid inlet and a mixed liquid outlet of the vacuum ejector are connected with the circulating water tank; an evaporation coil I is arranged in the circulating water tank, and an evaporation coil II is arranged in the purification water tank, so that the integration of low-temperature evaporation of the solution, system liquid supplement and solution recovery is realized, the solution purification efficiency is high, and the energy consumption is low.
Owner:王进杰

System volume-adjustable device and method for evaluating starting characteristic of refrigeration compressor

The present invention relates to the technical field of compressor performance testing and testing equipment manufacturing. Disclosed are a system volume-adjustable device and method for evaluating the starting characteristic of a refrigeration compressor. The evaluation device comprises a sample under test, a test refrigeration system and a test control system. By means of controlling a high-pressure-end volume regulator, a low-pressure-end volume regulator and a condensing coil, the evaluation device precisely adjusts a refrigeration system volume, so as to match the test requirements of different compressors for the refrigeration system volume, and provide a volume-adjustable substitute refrigeration system for starting characteristic testing. The present invention synchronously collects transient characteristic parameters such as intake and exhaust pressure, inter-phase voltage, phase line current and housing vibration acceleration at the instant of a compressor start, and non-transient characteristic parameters such as the in-housing temperature of a variable-frequency driver, the temperature of a power module and the temperature of a rectifier bridge, so as to accurately measure and evaluate the starting characteristics of the refrigeration compressor in specific environments.
Owner:ZHEJIANG UNIV OF TECH

Welded ceramic wiring terminal for refrigeration compressor

The utility model discloses a welding ceramic wiring terminal for a refrigeration compressor, which comprises a terminal board, a welding ceramic motor wiring terminal and a nut, the welding ceramic motor wiring terminal and the terminal board are welded and fixed, and the welding ceramic motor wiring terminal is composed of a double-thread wiring terminal, a ceramic welding seat, a ceramic tube and a metal sealing cap. Wherein the double-end thread binding post and the metal sealing cap, the metal sealing cap and the ceramic tube, and the ceramic tube and the ceramic welding seat are connected in a brazing manner, the surface of the ceramic tube is metalized at the welding position, and the two ends of the double-end thread binding post are respectively exposed out of the two end parts of the ceramic tube. And the terminal plate is electrically connected to an outgoing line and a power line of a motor winding, and is fixedly arranged on a shell of the refrigeration compressor. The wiring terminal of the refrigeration compressor can meet the requirements of creepage distance and electrical clearance when the voltage is higher, and can be used for the wiring terminal of the refrigeration compressor with higher power supply voltage.
Owner:BEIJING CHANGSHUN ANDA MEASUREMENT & CONTROL TECH CO LTD

High-power charging station liquid cooling system

The utility model provides a high-power charging station liquid cooling system, and particularly relates to the technical field of new energy automobile charging pile cooling systems, the high-power charging station liquid cooling system comprises a water tank, cooling liquid is pressurized by a cooling liquid water pump, passes through a flow meter and then is divided into two paths to respectively enter a battery and a charging liquid cooling cable for heat exchange and cooling, and the cooling liquid is cooled. A cooling liquid pressure sensor detects the pressure of the cooling liquid and adjusts the flow of the cooling liquid, so that the cooled cooling liquid flows out to a second Y-shaped pipe and enters the heat exchanger, a cooling fan cools the heat exchanger, a liquid return temperature sensor detects the temperature of the cooled cooling liquid, and a liquid supply temperature sensor detects the temperature of the cooled cooling liquid after heat exchange; in the process, no refrigeration compressor system works, electric energy is saved, and the operation energy efficiency of the new energy storage charging station battery and the charging liquid cooling cable system is improved.
Owner:JIANGSU SHINCO CENT AIR CONDITIONING

A portable refrigeration device for transporting red wine

The present invention discloses a portable refrigeration device for transporting red wine, and relates to the field of household red wine refrigeration. The portable refrigeration device for transporting red wine comprises a storage box, a refrigeration compressor, a plurality of extrusion units, a support unit, a plurality of adjustment units and a plurality of sealing units. The portable refrigeration device for transporting red wine clamps red wine bottles of different sizes through the extrusion unit to prevent the red wine from colliding due to shaking, and ensures the preservation of each bottle of wine stored in the storage box by transmitting the cold air generated by the refrigeration compressor through the main connecting pipe and the slave connecting pipe. The red wine cork is limited in the red wine bottle mouth by the sealing block contacting and extruding the red wine bottle mouth, ensuring the sealing effect of the red wine, pushing the limit plate to the center position, and limiting the red wine bottle mouth with the bottle body, so that the red wine limitation is more stable.
Owner:ZHEJIANG AIDEWO ELECTRONIC TECH CO LTD

Intelligent power-saving control method and device for centrifugal refrigeration compressor

The invention relates to the technical field of refrigeration system automation and energy-saving control, and provides an intelligent power-saving control method and device for a centrifugal refrigeration compressor. The method comprises the steps that closed-loop control over the frequency of the frequency converter is conducted according to the current current of the compressor, and the pressure fluctuation allowable range is determined; target pressure is determined according to the target flow, and closed-loop control over the opening degree of the pressure regulating valve is conducted according to the target pressure and the pressure fluctuation allowable range; and closed-loop control over the opening degree of the expansion valve is conducted according to the target flow. The current, the pressure and the flow which are mutually associated are decoupled, the frequency converter is mainly used for controlling the flow, the pressure regulating valve is used for controlling the pressure, and the expansion valve is used for controlling the flow, so that orderly regulation of the current, the pressure and the flow is realized, and the pressure fluctuation allowable range is determined by using the current. And the pressure fluctuation allowable range is used for adjusting and controlling the opening degree of the pressure regulating valve, so that the pressure overshoot can be effectively reduced.
Owner:SINOSTEEL WUHAN SAFEY&ENVIRONMENT PROTECTION RES

Multi-grade waste heat grading recovery device for poultry processing plant

The invention provides a multi-grade waste heat grading recovery device for a poultry processing factory, and solves the technical problems that existing waste heat recovery equipment is mainly designed for single-grade and low-impurity-content waste heat resources and is difficult to adapt to feather drying waste gas with high impurities and exhaust temperature fluctuation of a refrigeration house compressor in a poultry processing scene. The device can be widely applied to the field of waste heat recovery equipment. The system specifically comprises a feather drying waste gas treatment system, a refrigeration house waste heat pressure stabilizing system and a comprehensive control system, wherein the feather drying waste gas treatment system comprises a cyclone separator and an electrostatic degreaser; a gas inlet pipe of the cyclone separator is communicated with a waste gas discharge pipe, waste gas enters from the tangential direction of the cylindrical section of the separator, and solid impurities are thrown to the wall of the separator and fall to a bottom ash hopper along the wall surface; the waste gas subjected to dust removal enters an electrostatic degreaser, a high-voltage electrode and a grounding polar plate are arranged in the degreaser, grease particles in the waste gas are ionized under the action of a high-voltage electric field, and the grease particles with negative electricity are adsorbed to the grounding polar plate.
Owner:中暖新能源(青岛)有限公司 +1

Device and method for testing starting characteristics of refrigeration compressor with adjustable system volume

The present disclosure relates to the technical field of compressor performance tests and detection apparatus manufacturing, and discloses a device and method for testing starting characteristics of a refrigeration compressor with adjustable system volume. The device includes tested samples, a test refrigeration system and a test control system. The testing device realizes accurate adjustment of volume of the refrigeration system by means of control of a high-voltage terminal volume adjuster, a low-voltage terminal volume adjuster and condensing coils, and matches test requirements of different compressors for the volume of the refrigeration system, such that a substitute refrigeration system with adjustable volume is provided for testing the starting characteristics.
Owner:ZHEJIANG UNIV OF TECH

Magnetic suspension integrated energy-saving refrigeration compressor

The invention provides a magnetic suspension integrated energy-saving refrigeration compressor, and relates to the technical field of refrigeration equipment, the magnetic suspension integrated energy-saving refrigeration compressor comprises a main body assembly, and the two ends of the main body assembly are in threaded connection with volute assemblies; the two volute assemblies are connected through a gas-liquid circulation assembly, a magnetic suspension motor unit is installed in the main body assembly, an impeller assembly is in driving connection with the interior of the magnetic suspension motor unit, and a magnetic suspension control module and a motor monitoring module are installed on the two side walls of the main body assembly respectively. Full magnetic suspension supporting is adopted, mechanical friction is avoided, energy is saved, consumption is reduced, the service life of a unit is prolonged, and operation noise is reduced. The integrated structure is matched with the sealing piece, gas and liquid leakage is prevented, gas circuit and system circulation is optimized, and the refrigeration energy efficiency is improved. The stable and efficient operation of the compressor is guaranteed through the wear resistance of the impeller and real-time monitoring and regulation of the intelligent module.
Owner:BEIJING GAOFU POWER TECH CO LTD

Freeze-drying control method and system based on dynamic parameter regulation and control and heat and mass transfer simulation

The invention relates to the technical field of freeze-drying control, and discloses a freeze-drying control method and system based on dynamic parameter regulation and control and heat and mass transfer simulation. The method comprises the steps that a multi-point temperature sensor collects temperature gradient and mass change rate data; a chaos butterfly effect algorithm identifies a nonlinear transition point and predicts an ice crystal growth trend; evaluating the heat conductivity coefficient of the material, and dividing kernel, middle and surface regions; designing a differentiated cooling curve; and cooperative control instructions of the refrigeration compressor unit, the vacuum pump unit and the heating plate array are generated, and multi-stage cooperative control is achieved. The problems of uneven ice crystal distribution and material structure damage caused by extensive temperature control in a traditional building material freeze-drying process are solved.
Owner:XINXIANG UNIV

Silencing cavity structure for totally-enclosed refrigeration compressor

The silencing cavity structure comprises an upper cavity, a lower cavity and a first partition plate arranged between the upper cavity and the lower cavity, an air inlet channel is formed in the outer side face of the lower cavity, and a snakelike communicating vessel assembly connected to the first partition plate is arranged in the lower cavity. The snakelike communicating vessel assembly comprises a snakelike communicating pipe and at least one second partition plate arranged on the snakelike communicating pipe, the second partition plate divides the lower cavity into a plurality of small cavities, the wall of one small cavity is connected with an air inlet channel, one end of the snakelike communicating pipe corresponds to the air inlet channel, and the other end of the snakelike communicating pipe is connected to the first partition plate. The air passes through each small cavity; a third partition plate is arranged in the snakelike communicating pipe in the bending path direction of the snakelike communicating pipe. The snakelike communicating pipe and the third partition plate are provided with notches in the space where the remaining small cavities are located. A fourth partition plate is arranged in the air inlet channel in the air inlet direction. By adopting the scheme, the noise reduction characteristic of the target frequency band can be improved under the condition that the air suction efficiency is not influenced.
Owner:HUANGSHI DONPER COMPRESSOR CO LTD

Scattered gas recycling and liquefying system

The utility model discloses a scattered gas recycling and liquefying system, and belongs to the field of liquefying equipment. The system comprises a natural gas input pipeline, a first cold box, a second cold box, a first refrigeration compressor, a second refrigeration compressor, a third refrigeration compressor, a first JT throttle valve, a second JT throttle valve, a third JT throttle valve and a fourth JT throttle valve. The first refrigeration compressor, a third channel of the first cold box, a third channel of the second cold box, a third JT throttle valve, a second channel of the second cold box and a second channel of the first cold box are sequentially connected to form a loop; the second refrigeration compressor, a fifth channel of the first cold box, the second JT throttle valve and a fourth channel of the first cold box are sequentially connected to form a loop; a third refrigeration compressor, a seventh channel of the first cold box, a first JT throttle valve and a sixth channel of the first cold box are sequentially connected to form a loop; the natural gas input pipeline is sequentially connected with a first pipeline of the first cold box, a first pipeline of the second cold box and the fourth JT throttling valve. According to the utility model, the cost is reduced.
Owner:SICHUAN HUISHITE ENERGY EQUIP CO LTD

Multi-stage compression magnetic suspension centrifugal compressor with independent rotating speed

The utility model relates to the technical field of centrifugal refrigeration compressors, in particular to a multistage compression magnetic suspension centrifugal compressor with an independent rotating speed. The compressor comprises a flange plate, a first-stage motor and a second-stage motor, the first-stage motor and the second-stage motor operate independently, the two sides of the flange plate are fixedly connected to one end of the first-stage motor and one end of the second-stage motor, and the first-stage motor and the second-stage motor basically extend in the direction of a first straight line L1; a first-stage impeller and a second-stage impeller are respectively arranged in the first-stage motor and the second-stage motor, and the number of the first-stage impeller and the number of the second-stage impeller are respectively one or a plurality of the first-stage impeller and the second-stage impeller which are connected in series. According to the compressor, adjustment of different rotating speeds of the first-stage motor and the second-stage motor of the compressor can be achieved, adjustment of optimal inter-stage pressure of the compressor under the large pressure ratio is achieved, the optimal isentropic compression efficiency is achieved, and then the energy-saving effect is achieved.
Owner:XINLEI COMPRESSOR CO LTD

Testing device and method for measuring heat exchange performance of thermosyphon evaporator

The invention provides a test device and method for measuring the heat exchange performance of a thermosyphon evaporator, and belongs to the technical field of heat exchangers. The device comprises a refrigeration compressor, an oil-gas separator, a high-pressure condenser, a cooling tower, a circulating water tank, a circulating water pump, a liquid reservoir, a gas-liquid separator, a thermosyphon evaporator, a secondary refrigerant water tank, a secondary refrigerant pump and a mixing tank which are communicated with one another, and monitoring the measuring instrument for the test according to a specified time interval and recording data through the computer, and calculating the total heat transfer coefficient of the thermosyphon evaporator. By adjusting the height of the gas-liquid separator and utilizing the ratio of the mass flow measured at the liquid inlet of the thermosyphon evaporator to the gas mass flow of the gas-liquid two-phase flow measured at the gas outlet of the thermosyphon evaporator, the refrigerant circulation multiplying power under different liquid column static pressure heads is measured and calculated, and better test data support can be provided for the pipeline design of the thermosyphon evaporator.
Owner:TAIZHOU SPECIAL EQUIP INSPECTION & TESTING RES INST

Pyrolysis product compression using CO2 loop

Processes, systems, and apparatus are provided for producing a compressed process gas comprising light olefin such as ethylene. The process utilizes a pyrolysis reactor to produce the process gas. A power generator utilizes a turbine operated based on an Allam cycle to produce shaft power for operating one or more compressors involved in processing of the process gas while producing a reduced or minimized amount of CO2 that is released as a low-pressure gas phase product. Examples of using the shaft power for processing of the process gas can include compressing the process gas a process gas compressor powered by the produced shaft power and cooling the process gas using a refrigeration compressor powered by the produced shaft power.
Owner:EXXONMOBIL ENG & TECH CO

Combined structure of current type starter and protector

The combined structure of the current type starter and the protector comprises the current type starter and the protector, the current type starter is provided with an S pin and an M pin, the protector is provided with a protector pin, and the combined structure is characterized by further comprising an integrated installation mechanism which comprises a protector pin supporting seat and a protector pin locking cover, the protector pin supporting seat is located on the upward side of a current type starter cover plate of the current type starter and corresponds to the upper portion of the S pin and the upper portion of the M pin across the current type starter cover plate, and the protector pin is supported on the protector pin supporting seat and corresponds to the upper portion between the S pin and the M pin. And the protector pin locking cover is matched with the protector pin supporting seat in an inserting and embedding manner at a position corresponding to the upper part of the protector pin so as to lock the protector pin on the protector pin supporting seat. The method has the advantages that volume increase and obvious cost increase are avoided; assembly process links are reduced, and assembly efficiency is improved; and the reliability and the safety of the three-line column assembled on the refrigeration compressor are ensured.
Owner:CHANGSHU TIANYN ELECTROMECHANICAL CO LTD

Electric drive device for a vehicle

The invention relates to an electric drive device (1) for a vehicle, comprising an electric machine (12), an inverter (13) electrically connected to the electric machine (12), and a refrigerant compressor (14), wherein the electric drive device (1) has a housing (10) having a first chamber (22) in which the electric machine (12) is arranged, and a second chamber (23) in which the inverter (13) is arranged, and having a partition (45) separating the first chamber (22) from the second chamber (23), wherein a cooling channel (30) for cooling the inverter (13) is provided in the partition (45), wherein the cooling channel (30) has an inlet (31) and an outlet (32), and wherein the refrigerant compressor (14) is arranged in a refrigerant compressor housing (24) of the electric drive device (1).wherein the refrigerant compressor housing (24) has a refrigerant inlet (25) for the inlet of the refrigerant (70) to be compressed into the refrigerant compressor housing (24) and a refrigerant outlet (26) for the outlet of the compressed refrigerant (70) from the refrigerant compressor housing (24). The outlet (32) of the cooling channel (30) is connected to the refrigerant inlet (25) of the refrigerant compressor housing (24).
Owner:ROBERT BOSCH GMBH

Electronic control valve of automobile refrigeration compressor

The utility model provides an electric control valve of an automobile refrigeration compressor, which relates to the technical field of electric control valves, and comprises a refrigeration compressor main body and an electric control valve main body, and a limiting bulge for installing the electric control valve main body is formed at the upper top end of the refrigeration compressor main body. The refrigeration compressor body and the electric control valve body can be quickly connected through the quick release mechanism, when the electric control valve body is damaged, the electric control valve body can be replaced in time, time is saved, and the use efficiency is improved, the quick release mechanism is composed of an upper structure and a lower structure, and a first mounting plate and a second mounting plate are matched with each other; and the first clamping base and the second arc-shaped clamping block are connected in a sleeving mode, the second clamping base and the first arc-shaped clamping block are connected in a sleeving mode, finally, the second arc-shaped clamping block and the magnetic attraction rack on the outer wall of the first arc-shaped clamping block are clamped in a limiting mode through the magnetic attraction rack, and the situation that the magnetic attraction rack falls off in the using process is avoided.
Owner:MAGFA (SHANGHAI) TECHNOLOGY CO LTD

Semi-closed reciprocating refrigeration compressor for ammonia

The invention discloses a semi-closed reciprocating refrigeration compressor for ammonia, and relates to the technical field of refrigeration. Comprising a semi-closed machine shell, and a compression mechanism and a driving motor which are arranged in the machine shell. A stator winding of the driving motor is made of an aluminum or aluminum alloy material so as to resist corrosion of an ammonia refrigerant; the compression mechanism is of a reciprocating piston type structure; in addition, the driving motor directly drives the reciprocating piston type compression structure to operate, and a traditional shaft seal and a traditional coupler are omitted. The crankshaft also serves as a motor shaft, and direct connection driving is achieved. And integrally-formed radiating fins are arranged at the position, corresponding to the motor, outside the shell so as to enhance the radiating and structural strength. And the air suction port is communicated to the motor cavity, so that low-temperature ammonia gas flows through the motor to cool the motor before being compressed. The invention effectively solves the problems of ammonia corrosion and leakage, has the advantages of high sealing property, high transmission efficiency, low operation noise and the like, is particularly suitable for ammonia refrigeration scenes with medium and small cooling capacity and high pressure ratio, and fills the technical blank in the field.
Owner:JIANGSU XUEMEI REFRIGERATION EQUIP

Electric appliance module assembly of refrigeration compressor

The utility model relates to an electric appliance module assembly of a refrigeration compressor, which comprises a plastic shell, and an overheat overload protector, a PTC (Positive Temperature Coefficient) starting relay and an operation capacitor are arranged in the plastic shell. The overheat and overload protector, the PTC starting relay and the operation capacitor are arranged in the same shell to form an electric appliance module assembly, and the electric appliance module assembly is externally provided with two groups of wiring terminals: one group of wiring terminals forms a power supply connecting end by an L insertion piece and an N insertion piece, and the other group of wiring terminals forms a compressor connecting end by a C insertion hole, an S insertion hole and an M insertion hole; one side of the overheat overload protector is connected with the L insertion sheet, and the other side is connected with the C insertion hole; after the PTC starting relay and the operation capacitor are connected in parallel, one side is connected with the N insertion piece and the M insertion hole, and the other side is connected with the S insertion hole. The electric appliance module assembly of the refrigeration compressor adopts the flame-retardant plastic shell, is small in size and simple in structure, reduces the product raw material cost and the installation labor cost, and is convenient to install and use.
Owner:ANHUI HAOYE ELECTRIC CO LTD

Compressor wire tube condenser with efficient refrigeration function

The utility model discloses an efficient refrigeration compressor wire tube condenser, which comprises a condenser body, an air inlet, an air outlet, an air inlet, an air outlet, an air inlet, an air outlet, an air outlet, an air inlet and an air outlet and is characterized in that the condenser body is provided with an inlet end and an outlet end, and a plurality of parallel condensing pipeline parts are arranged between the inlet end and the outlet end; the heat dissipation wires are wound on the condensation pipeline part, and the condensation pipeline part is provided with a plurality of heat dissipation wires which are arranged at equal intervals in the width direction of the condensation pipeline part; the bracket is used for supporting the condenser body; and the intervals of the heat dissipation wires on the condensing pipeline parts which are sequentially arranged from the inlet end to the outlet end are gradually increased. Compared with the prior art, the wire tube condenser solves the problem of low heat dissipation efficiency caused by consistent distribution density of heat dissipation wires on multiple layers of condensation pipelines in an existing wire tube condenser.
Owner:SUZHOU RUITAIKE COOLING TECH CO LTD

Ionic liquid additive, preparation method thereof, refrigerating machine oil and working fluid composition for refrigerating machine

The invention relates to the field of refrigerating systems, and discloses an ionic liquid additive, a preparation method of the ionic liquid additive, refrigerating machine oil and a working fluid composition for a refrigerating machine. The ionic liquid additive has a structure as shown in a formula 1, wherein R1 and R2 are independently selected from C1-C10 alkyl groups. The invention provides a novel ionic liquid additive, the ionic liquid additive comprises BF4-anions and cations optimized and improved based on a guanidine structure, the BF4-anions and the cations are synergistically used for refrigerating machine oil, excellent wear resistance and metal stability can be shown, the friction coefficient of a friction pair can be remarkably reduced, and the ionic liquid additive has excellent thermal stability; the ionic liquid additive has the non-volatile characteristic, almost has no vapor pressure, has the characteristics of odorlessness, non-combustibility and the like, is environment-friendly, has good oil solubility in the base oil, and is suitable for being used as an anti-wear additive of the refrigerating machine oil; formula 1.
Owner:GREE ELECTRIC APPLIANCE INC OF ZHUHAI

Piston refrigeration compressor with overheating protection

The utility model discloses a piston type refrigeration compressor with overheating protection, including compressor main part and casing, both sides of casing are equipped with through -hole, and casing is through the through -hole and is equipped with in the outside of compressor main part, and the one end vertical of casing is equipped with the air outlet pipe, and the other end is equipped with the air inlet pipe, and the one end of air inlet pipe is installed with the liquid storage shell away from casing, and the center of liquid storage shell bottom surface is equipped with the air inlet hole, and the pipeline is installed in the air inlet hole, and the inside installation of pipeline has the heat dissipation fan, and the liquid storage groove is formed between pipeline and liquid storage shell, and a plurality of ultrasonic atomizing pieces are installed in the liquid storage groove. The utility model discloses simple structure, and the wind of heat dissipation fan produces can be discharged from the air outlet pipe to the outer wall of casing and compressor main part upwards, and along with the improvement of heat, the water mist of ultrasonic atomizing piece can be blown into the casing, and until along the air outlet pipe and is discharged, through the contact of water mist and compressor main part and with the contact of casing inside air, can quickly absorb its heat, to increase the cooling efficiency.
Owner:ZHEJIANG ANKANG REFRIGERATION EQUIPMENT CO LTD

Lid (refrigeration compressor)

1. Name of the product in this design: Cover (Refrigeration Compressor). 2. Purpose of this design: For use in refrigeration compressor parts. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.
Owner:HUBEI POLYTECHNIC UNIV

A highly stable binary refrigeration compressor unit

This invention discloses a highly stable binary refrigeration compressor unit, comprising: a base, an evaporator mechanism, a condenser, a liquid receiver, a first compressor, a second compressor, an oil separator, a dryer filter, a first solenoid valve, a first outlet throttling valve, a first return throttling valve, a check valve, a plate heat exchanger, a second solenoid valve, a second outlet throttling valve, and a second return throttling valve. The evaporator mechanism is located on the outer right side of the base, and its interior includes adjustable evaporator components, adjustment components, and auxiliary heat exchange components. This highly stable binary refrigeration compressor unit can achieve a matching relationship between the compressor, condenser, throttling valve, and evaporator, providing an accurate basis combining theoretical calculations and practical application heat absorption and release coefficients, achieving optimal configuration of the entire refrigeration system. Furthermore, it can instantly adjust the evaporator's operating efficiency according to actual needs, achieving energy saving and noise reduction.
Owner:XI AN JIAOTONG UNIV

Ice-making water storage barrel and central water-cooling air conditioner

The ice-making water storage barrel comprises a water barrel body, a refrigeration compressor, a cold water tower, an expansion valve and a capillary tube, the water barrel body comprises an outer water barrel and an inner water barrel, the inner water barrel is located in the outer water barrel, a refrigeration pipe is located between the outer water barrel and the inner water barrel, a water inlet bin is arranged on the inner water barrel, and a water outlet bin is arranged on the outer water barrel. A plurality of first through holes are formed in the water inlet bin and communicated with the outer water bucket and the inner water bucket, an air bag is arranged in the water inlet bin and connected with an air inlet pump and an air extracting pump of the outer water bucket, and the refrigeration compressor can make ice from water in the water bucket body through the condenser, the expansion valve and the capillary tube. In the ice making process, the air bag is filled with air, the first pass is closed, when ice making is stopped, the air bag discharges air to flow out of the first pass, ice melts and enters the inner water bucket, water in the inner water bucket is cooled, the structure can prolong the refrigeration time and improve the refrigeration efficiency, and the operation mode of ice making is simple.
Owner:中山市水之源节能科技服务部