72 results about "Refrigeration" patented technology

The present invention relates to a refrigeration or air-conditioning apparatus which utilizes a vapor compression refrigeration system having a refrigerant circulating therethrough that comprises a compressor powered by an engine exhaust gas driven turbine. A mini centrifugal compressor may advantageously be used with such an apparatus, thus allowing the use of low GWP refrigerants. The present invention further relates to methods for powering a compressor, such as a mini-centrifugal compressor, in a refrigeration or air-conditioning apparatus, and methods for controlling compressor surge, impeller speed and cooling capacity.

The invention provides a vacuum spray freeze-drying device and method. The vacuum spray freeze-drying device is characterized in that the device comprises a closed container used for containing materials in the vacuum spray freeze-drying process, atomizing nozzles, a vacuum system and a temperature regulating jacket; the atomizing nozzles are used for atomizing and dispersing liquid to be freeze-dried into liquid drops and spraying the liquid drops into the container; the vacuum system is used for forming a vacuum environment in the container in the vacuum spray-freezing pelletizing stage to enable part of components in the liquid drops to be vaporized so as to absorb heat, and then the liquid drops are cooled and frozen to form particles, and the vacuum system is also used for carrying out continuous vacuumizing in the drying stage so as to maintain the vacuum environment; the temperature regulating jacket is used for carrying out refrigeration in the vacuum spray-freezing pelletizing stage to prevent part of components in the particles from being molten, and the temperature regulating jacket is also used for providing sublimation heat for part of the components in the particles in the drying stage. In the fast freezing process of the materials, and no refrigerants are adopted to contact with the materials, so that the risk of material pollution is completely eliminated, and sterility of the freeze-drying process is guaranteed.

The invention provides a data center energy consumption scheduling method and a data center energy consumption scheduling device. The method comprises the following steps of acquiring resource utilization rate and/or environment temperature of one or a plurality of cabinets of a data center; and scheduling energy consumption of the data center according to the acquired resource utilization rate and/or the environment temperature. By the data center energy consumption scheduling method and the data center energy consumption scheduling device, the problems that reduction treatment on the energy consumption of a data center is incomplete by using a correlation technique and the energy using efficiency of the data center is not high are solved, energy consumption scheduling of load distribution can be realized, and energy consumption of refrigeration equipment of the data center is reduced to a certain degree.

A hermetic compressor comprises a hermetic container, an electric motor and a compressing mechanism installed inside of the hermetic container, lubricating oil and refrigerant gas enclosed within the hermetic container, a first temperature detector disposed to a predetermined location within the hermetic container, and a second temperature detector disposed to a location adjacent to a surface of the lubricating oil in the hermetic container. The predetermined location where the first temperature detector is disposed is one of a location near an upper end and another location near a lower end within a space inside the hermetic container, and an amount of the lubricating oil in the hermetic container is determined according to temperatures detected by the first temperature detector and the second temperature detector.

The invention discloses a freezing device. When the opening of the electronic expansion valve (14) is less than the specified opening, or the superheat of the evaporator (15) is greater than the specified superheat, it is judged that the refrigerant circulation is insufficient, and the evaporator fan ( 22) The air volume is reduced.

The invention discloses a magnetic collector for magnetic pulse forming, and relates to a magnetic collector. The invention aims at solving the problem that the structural strength of a magnetic collector, the insulation capacity of the gap of a longitudinal joint of the magnetic collector, and the insulation capacity between a working area of the magnetic collector and the machined workpiece are reduced due to a rapid temperature rise generated during a continuous magnetic pulse forming process, so that short circuit and structural damages among the longitudinal joint of the magnetic collector, the magnetic collector and the workpiece are caused, and finally the formation production chain is broken. According to the invention, at least one cooling channel ring is machined on a longitudinal arm; each cooling channel ring comprises a plurality of cooling channels; each cooling channel penetrates through an inner sleeve body in the longitudinal length direction and is internally charged with a refrigeration gas or a refrigeration liquid; and every two cooling channels are communicated through an external tube so as to form a serial cooling pipeline or a parallel cooling pipeline; and the Joule heat generated by the magnetic collector during multiple charge-discharge processes is brought away by charging the refrigeration gas or the refrigeration liquid in the cooling channel rings, thus effectively assisting to cool the magnetic collector. The magnetic collector disclosed by the invention is used in a magnetic pulse forming process.

The invention discloses a self-operated three-way reversal valve. The reversal valve comprises a valve body, and a first piston, a second piston, a sliding guide and a sliding block which are arranged in the valve body, and a spring. A valve seat, an adaptor tube C, an adaptor tube E and an adaptor tube D which are arranged on the valve body form a receiving cavity together with a low-pressure capillary tube and a high-pressure capillary tube. The sliding block is arranged on the valve seat. The sliding guide is fixed with the sliding block. The sliding guide is connected with the first piston and the second piston to form a piston and sliding guide assembly which can move axially in the valve body. The spring is arranged between the second piston and a left end cap. The sliding block is provided with a radially limiting structure in the valve body. The radially limiting structure is as follows: the sliding block comprises a transverse structure and a vertical structure arranged above the transverse structure; and the bottom of the transverse structure is closely attached to the valve seat; a top surface of the vertical structure of the sliding block has a longitudinal groove; and top surfaces of twp convex parts of a convex shape of the groove are closely attached an inner wall of the valve body. The structure of the valve can improve heat tube circulation refrigeration efficiency and is high in efficiency and energy-saving.

The invention relates to an efficient bone powder preparing system which comprises a bearing base, bearing vertical columns, a high-pressure prefabricated bin, a low-temperature crushing bin and a conveying pipe. The bearing vertical columns are vertically connected with the upper surface of the bearing base, and the high-pressure prefabricated bin and the low-temperature crushing bin are slidablyconnected with the side surfaces of the bearing vertical columns through driving sliding rails. The high-pressure prefabricated bin mutually communicates with the low-temperature crushing bin throughthe conveying pipe. The high-pressure prefabricated bin comprises a tank body, a stirring device, an ultrasonic vibration mechanism, an irradiation heating device and high-temperature and high-pressure water vapor connecting end openings. The low-temperature crushing bin comprises a smashing cabin, crushing rollers, a bone powder grinding mechanism, an ultrasonic crushing mechanism, an ultrasonicvibration mechanism and a refrigerating unit. A using method of the efficient bone powder preparing system comprises three steps of bone material pretreatment, material conveying and low-temperaturepowder preparing. The production efficiency and quality of bone powder products can be effectively improved, and standardization of the bone powder preparing process can further be effectively improved.

The invention discloses a refrigerator load control monitoring system in the technical field of load monitoring. The refrigerator load control monitoring system comprises a refrigerator control plate; output ends of a refrigeration illuminating lamp, a temperature change door decorating lamp, a refrigeration air door heating wire and a temperature change air door heating wire are electrically connected with an input end of a 12-V direct-current voltage detecting module; an output end of a fan is electrically connected with an input end of a fan rotating speed monitoring module; a detecting plate detects a working state of a load; data is transmitted to an upper computer in real time; the upper computer displays and stores the data in a chart form to conveniently analyze and view the data; refrigerator control rules can be set and detected to reduce the analysis workload of the testing data; testers can leave during testing; the data is automatically recorded to conveniently view later; the upper computer can automatically judge if each logic relation and load operating state in refrigerator control accord with the specification requirements; each control relation can be opened or closed; and various parameters can be modified.

A three-purpose air conditioner for refrigeration, heating and heating water, which features increasing water cooling exchanger and electromagnetic valve in small air conditioner and water cooling exchanger, thermo-insulation water tank and hot water circulation pump in intermediate and large air conditioner, which can be used in all seasons with simple structure, easy making, low cost, high efficiency, and stable and reliable performance.

The invention discloses a building distributed energy supply system based on a hydrogen fuel cell and an operation method. The building distributed energy supply system comprises a hydrogen fuel cell system, an air source heat pump system and a waste heat recovery system; the hydrogen fuel cell system generates electric power, and the electric power stored by a storage battery is used for driving a compressor and supplying power to a building; and when the air source heat pump system is in a refrigeration mode, a refrigerant prepares chilled water for refrigeration through a plate heat exchanger, when the air source heat pump system is in a heating mode, the refrigerant extracts heat from air through a finned heat exchanger and prepares hot water for heating through the plate heat exchanger, and the waste heat recovery system recovers waste heat of the hydrogen fuel cell for preparing domestic hot water and serves as an auxiliary heat source of the air source heat pump system when the temperature is low in winter. The electric power and waste heat of the hydrogen fuel cell are fully and reasonably utilized, the purposes of building power supply, refrigeration, heating and domestic hot water supply are achieved, the energy utilization rate is increased, the current energy policy requirements of energy conservation and emission reduction are met, and social benefits are remarkable.

The invention discloses a recovery method of an alkyl-halide fire extinguishing agent in a fire extinguishing bottle for aviation, which belongs to the technical range of recovery of fire extinguishing agents. The recovery method comprises the following steps of: firstly, establishing a fire extinguishing agent recovery system which enables a fire extinguishing agent to be liquefied by reducing the temperature and increasing the pressure simultaneously; setting the temperature of a refrigeration house to be -40 DEG C and the volume of a pressure storage tank to be 35L according to practical needs; placing the pressure storage tank in the small refrigeration house or refrigerator, placing the fire extinguishing bottle outside the small refrigeration house or refrigerator; connecting the pressure storage tank to the fire extinguishing bottle and the fire extinguishing agent storage tank respectively; opening an inlet shutoff valve to release the fire extinguishing agent in the fire extinguishing bottle to the pressure storage tank, wherein the pressure storage tank is higher than the fire extinguishing agent storage tank, and the liquid fire extinguishing agent in the pressure storage tank flows towards the fire extinguishing agent storage tank under the action of gravity; and automatically recovering according to specific pressure. The recovery method diclosed by the invention has the advantages that the fire extinguishing agent discharged into the atmosphere is obviously reduced, so that the environment is protected, and the purposes of reducing the waste of the fire extinguishing agent and improving the recovery efficiency of the fire extinguishing agent are fulfilled.

The invention provides a straight pipeline for LNG return and liquid inlet. The straight pipeline comprises an outer pipeline body and an inner pipeline body. The inner pipeline body is arranged in the outer pipeline body and connected with inner pipeline flanges. The outer pipeline body is connected with an outer pipeline flange. An outer pipeline flange sealing face and a matching face are arranged on the outer pipeline flange. The horizontal plane where the matching face is located is lower than the horizontal plane where the sealing face of the outer pipeline flange is located. An inner pipeline flange sealing face and a matching edge are arranged on each inner pipeline flange, the horizontal plane where the matching edges are located is lower than the horizontal plane where the sealing faces of the inner pipeline flanges are located, and the matching edges are arranged on the matching face. A gap allowing liquid to pass is formed in each inner pipeline flange. The outer pipeline flange sealing face and the inner pipeline flange sealing faces are located in the same horizontal plane. In use, the liquid flowing into a gas dispenser flows in the inner pipeline body, and gas flowing out of the gas dispenser flows between the inner pipeline body and the outer pipeline body. By the adoption of the straight pipeline for LNG return and liquid inlet, the on-site heat preservation construction workload can be reduced effectively, the heat preservation performance of the pipeline is improved, the loss of refrigeration capacity is reduced, and BOG generation is reduced.

The invention relates to a thermal expansion valve, belonging to the technical field of refrigeration control. The thermal expansion valve comprises an upper valve body, a lower valve body, a transmission rod and a valve core, wherein the upper valve body is provided with a first cavity, a second cavity and a pair of air return pipes; the lower valve is fixedly connected with the upper valve bodyand is provided with a pair of throttling pipes; the displacement of the transmission rod varies due to the influence of the temperature/pressure of a temperature sensing component; the valve core isarranged in the first cavity, and the displacement of the transmission rod controls the movement of the valve core so as to control the opening degree of a throttle port. The thermal expansion valve is characterized in that the directions of a refrigerant flowing across the throttle port are the same when the thermal expansion valve is in a forward throttling state and a backward throttling state. The invention overcomes the difference between forward throttling and backward throttling in the prior art, and can simultaneously prevent the refrigerant from generating nonuniform impact on the transmission rod during the throttling process, thus, the thermal expansion valve not only can increase the movement reliability of the transmission rod, but also can obviously reduce noise.

The invention relates to a distributed type energy system based on demand side energy supply and a control method. The problems that the demand side and the supply side are not matched, and the energyutilization rate at the energy supply valley is low exist in a distributed type energy system, and the overall system energy efficiency is influenced. The distributed type energy system comprises a demand side, prime mover equipment, waste heat refrigeration/heating equipment, waste heat power generation equipment, a smoke flow distributing device, a main control system, a smoke flow distributingcontrol line, a prime mover control line and an energy demand feedback line. The main control system is connected with the prime mover equipment. The prime mover equipment is connected with the smokeflow distributing device. The main control system is connected with the smoke flow distributing device. The smoke flow distributing device is connected with the waste heat refrigeration/heating equipment and the waste heat power generation equipment. The waste heat refrigeration/heating equipment and the waste heat power generation equipment are both connected with the energy demand side, and theenergy demand side is connected with the main control system. According to the distributed type energy system based on demand side energy supply and the control method, the energy supply quantity ismatched with the energy demand quantity, and the energy utilization rate is increased.

The invention discloses an inverter air conditioner, which includes the structural parts of the external unit of the air conditioner, and also includes a heat dissipation module, an electric control board, an electrical box, PETG tube one, PETG tube two, a needle valve, and a fan. Leaf, condenser module, partition, PETG tube 3. Power pump, motor bracket, heat dissipation module, condenser module and power pump form a closed-loop circulation system. The internal cooling liquid absorbs heat and is driven by the power pump to flow down to the condenser module. The high-temperature cooling liquid dissipates its own heat through the rotation of the fan, and the cooled and heated liquid becomes the condensation end, so that the heat absorbed by the heat dissipation module can be conducted in time Go out and achieve the purpose of cooling down. Compared with the prior art, the invention is not partly controlled by the refrigeration system, is an independent closed-loop circulation system, has low cost and is easy to produce and process.

The invention discloses a milk pot cover with a mark for ice box cold insulation. The pot cover is provided with a through hole which is communicated into a milk pot, the inner wall of the through hole is provided with a circle of first steps, the lower end of an ice box set can pass through the through hole and enters the milk pot, a circle of second steps are formed at the upper end of the ice box set, the second steps just can be positioned on the first steps, one side of a turnover cover is articulated to one side of the pot cover, one surface of the turnover cover towards the pot cover is provided with a circles of protrusions, the protrusions just can be hermetically placed in the through hole, the bottom surface of the protrusion is provided with a turnover cover inner plate, the underside of the turnover cover inner plate just can prop against the upside of the ice box set, the other side of the pot cover is provided with an upswept milk discharging groove, the other side of the turnover cover is matched and covered on the milk discharging groove, a milk outlet is formed between the other side edge of the turnover cover and the milk discharging groove, and the milk outlet is communicated to the pot. During use, only the turnover cover needs to be opened, the ice box set is taken out to pre-refrigerate the turnover cover, the turnover cover is positioned in the through hole of the pot cover after the pre-refrigeration is finished, the turnover cover is closed, and the whole milk pot cover is hermetically arranged at a cup mouth. The milk pot cover is convenient to operate during use, and has a simple structure.

The present invention relates to an air conditioner. The air conditioner according to the present embodiment has a refrigeration capacity of 11 kW to 16 kW, inclusive, and uses R134a as a refrigerant circulating therein, and since a refrigerant pipe therein is made of a ductile stainless steel material having 1% or less of a delta-ferrite matrix structure with respect to the grain size area thereof, the refrigerant pipe can maintain strength and hardness as good as or better than those of a copper pipe, while also maintaining good processability.

The invention provides an air conditioner air outlet cover which can be used for solving the directivity problems of an air conditioner air outlet to reduce the energy waste sometimes. The air conditioner air outlet cover comprises an abutting part for abutted with the air conditioner air outlet; and one end of the abutting part is provided with a corrugated pipe with an adjustable bent direction. When the air conditioner air outlet cover is used, the abutting part is clamped at the air conditioner air outlet, then the bending direction of the corrugated pipe is adjusted to enable the corrugated pipe to point to the area needing refrigeration, so that the outlet air of the air conditioner air outlet can be converged at one point, the area can be refrigerated without large power, and the purpose of saving energy sources is achieved.

A flywheel energy storage mixed type superconducting magnetic bearing is composed of a stainless steel spindle (1), a radial electromagnetic bearing stator (2), a low-temperature Dewar (3), a superconducting bearing permanent magnetic rotor (4), a superconducting bearing block stator (5), a superconducting bearing coiling stator (6), a superconducting bearing iron magnetic suction force disk rotor(7), a flywheel (8)m a radial electromagnetic bearing iron magnetic ring rotor (9) and a superconducting bearing iron core magnetic yoke (10). The superconducting bearing block stator (5) and the superconducting bearing coiling stator (6) are arranged inside the low-temperature Dewar (3) and installed on the stainless steel spindle (1) in a sleeving mode, and liquid nitrogen or a refrigeration machine is used for cooling. The superconducting bearing coiling stator (6) is arranged below or around the superconducting bearing block stator (5). The radial electromagnetic bearing stator (2) is installed on the upper portion of the stainless steel spindle (1) in a sleeving mode. The superconducting bearing iron magnetic suction force disk rotor (7) is installed outside the low-temperature Dewar(3) and installed on the stainless steel spindle (1) in a sleeving mode.

The invention discloses a self-cleaning system of an indoor unit of an air conditioner. The system comprises a cold expansion control module, an exhaust pipe heat exchange device, a press exhaust pipe, and a refrigerant pipeline serially connected with an indoor unit heat exchange module, wherein the cold expansion control module is electrically connected with an air conditioner refrigerating system for receiving trigger signals of the air conditioner opening a self-cleaning function; an indoor heat exchanger is controlled to heat after refrigeration, and then, frosting and defrosting operations are respectively carried out; the refrigerant pipeline and the press exhaust pipe respectively communicate with the exhaust pipe heat exchange device; and in the exhaust pipe heat exchange device,a refrigerant and gas in the exhaust pipe finish heat exchange. Meanwhile, the invention further provides a control method of the self-cleaning system. On the one hand, through heat exchange, the self-cleaning system and the control method thereof cool press exhausted air to protect the system stability; and meanwhile, on the other hand, the temperature of the refrigerant is increased to accelerate the defrosting speed.

The invention relates to a degradable capacitor plastic shell which is composed of the following components in parts by weight: 35 parts of polyvinyl alcohol resin, 15 parts of gelatin, 10 parts of methyl-silicone rubber, 5 parts of hyaluronic acid, 5 parts of tribasic lead sulfate, 5 parts of nano silicon dioxide, 5 parts of modified wood-plastic powder, 2 parts of chlorinated paraffin, 2 parts of propanediol, 2 parts of palm oil, 5 parts of carbon fiber, 5 parts of metallocene polyethylene, 2 parts of methylsilicone oil, 0.5 part of tobacco cellulose, 2 parts of plasticizer, 2 parts of oxidized polyethylene, 2 parts of dioctyl adipate, 2 parts of rare-earth light conversion agent, 2 parts of cotton fiber, 2 parts of corn starch, 2 parts of polyester rubber powder, 2 parts of butyl acetate and 2 parts of talcum powder. The method has the advantages of simple components and low cost; the finished product is degradable, has stable performance, and does not have toxicity or harm in a high-temperature environment; and meanwhile, by changing the traditional preparation technique and adding the refrigeration procedure, the product has higher safety and still has favorable stability at higher temperature.

The invention belongs to the technical field of air conditioners, and particularly relates to a self-cleaning control method for an air conditioner. According to the technical scheme, the air conditioner comprises a pulse vibration device arranged on an indoor heat exchanger, the indoor heat exchanger, an outdoor heat exchanger, a compressor, an electronic expansion valve and a four-way valve, wherein the indoor heat exchanger, the outdoor heat exchanger, the compressor, the electronic expansion valve and the four-way valve can form a closed-loop refrigerant circulation system. The self-cleaning control method comprises the following steps of closing the electronic expansion valve firstly under the refrigeration working condition, and then closing an electromagnetic valve on the low-pressure side of the compressor after a preset time; starting the pulse vibration device to crush dirt inside the indoor heat exchanger; and opening the electronic expansion valve to a preset opening degree, opening the electromagnetic valve, and upconverting the compressor so that the crushed dirt inside the indoor heat exchanger can be flushed through the refrigerant. According to the self-cleaning control method, the interior of the indoor heat exchanger can be strongly cleaned by means of a mode of vibration firstly and then flushing, so that dirt adhering to the interior of the indoor heat exchanger can be quickly and thoroughly removed, and the cleaning efficiency and the cleaning effect of the indoor heat exchanger are ensured.