2375 results about "Refrigeration plant" patented technology

Disclosed is an efficient refrigeration apparatus that provides refrigerant based energy storage and cooling. When connected to a condensing unit, the system has the ability to store energy capacity during one time period and provide cooling from the stored energy during a second time period. The system requires minimal energy to operate during either time period, and only a fraction of the energy required to operate the system during the first time period is required to operate the system during the second time period using an optional refrigerant pump.

The invention discloses a refrigeration cooling system under a mine. The refrigeration cooling system comprises a main roadway under the mine or a refrigerating unit of a main roadway equipment cavern, and the refrigerating unit is communicated with a first mine heat exchanging device and a second mine heat exchanging device; the refrigerating unit is a refrigeration circulating system formed by connection of a condenser, an evaporator and a compressor, and the condenser is connected with the second mine heat exchanging unit through a cooling water pump to form a closed cooling-water circulating system; the evaporator is connected with the first mine heat exchanging unit through a refrigerated water pump to form a closed refrigerated-water circulating system. The refrigeration cooling system is simple in structure, low in loss of refrigeration capacity, high in heat exchanging rate and low in operation cost. Being the novel refrigeration cooling system, the refrigeration cooling system can be widely applied to a mine cooling system.

The invention discloses a door body of a refrigeration plant and a refrigerator with the door body. The door body comprises a frame, a door liner and a glass panel, wherein the frame comprises a left vertical post, a right vertical post, an upper end cover and a lower end cover, the upper end cover is connected with the upper ends of the left vertical post and the right vertical post, and the lower end cover is connected with the lower ends of the left vertical post and the right vertical post; the door liner is used for closing the back surface of the frame; and the glass panel is arranged on the front surface of the frame so as to close the front surface of the frame, and an insulation material space is defined by the glass panel, the frame and the door liner; and the back surface of the glass panel is provided with a left connecting piece and a right connecting piece which stretch in an up-and-down direction, the left connecting piece is adjacent to the left side edge of the glass panel and is connected with the left vertical post, and the right connecting piece is adjacent to the right side edge of the glass panel and is connected with the right vertical post. According to theinvention, the door body of the refrigeration plant is simple and beautiful in appearance and structure and easy to assemble.

An air conditioner includes a refrigerant circuit which connects an outdoor circuit and a plurality of indoor circuits connected in parallel. The air conditioner includes a leak detection section which detects leak of a refrigerant from the indoor circuits, and a control section which circulates the refrigerant to perform a refrigeration cycle when the leak detection section detects leak of the refrigerant such that the refrigerant in the indoor circuits of the refrigerant circuit is at a low pressure. Providing the control section in the air conditioner can reduce the leak of the refrigerant from the indoor circuit at low cost.

The invention relates to an air quantity regulation mechanism, which comprises an air door, a gear and a driving lever. The air door is provided with an air door shaft and an air door blade installed at one end of the air door shaft; the gear is installed at the other end of the air door shaft; and the driving lever is provided with a rack which is meshed with the gear so as to convert the linear motion of the driving lever into the rotary motion of the gear. The air quantity is easy to control by the air quantity regulation mechanism of the invention, air quantity control and reasonable distribution can be realized and the air quantity regulation mechanism has reasonable appearance design and compact and beautiful appearance. The invention also relates to an air channel device with the air quantity regulation mechanism and a refrigerator with the air channel device.

The present invention to an energy-storing phase change material and energy-stored air source heat pump defrosting system, belonging to the field of refrigeration equipment technology. The chemical component of said energy-storing phase change material is formed from CaCl2.6H2O and nucleating agent. Said invention also provides the concrete structure of said system. Said system can implement the function conversion from system heat production, waste heat energy storage, energy-releasing defrosting and heat production.

A fresh keeper used in refrigerating apparatus comprises a lid (1), an outer drawer (2) and at least one inner drawer (3) which is contained in said outer drawer, a gap is formed between the outer drawer and the inner drawer such that said outer drawer (2), said inner drawer (3) and said lid (1) form a sealed space when they are in mounting state. The effect of heat preservation is improved due to the air insulating layer, thereby the temperature inside the fresh keeper is not easily influenced by the ambience and the temperature inside the fresh keeper is more stable. Because of the double-layer structure used in the invention, an air layer is formed. The pressure of the vapor in the air layer is much more than that of the inner drawer, thus it is difficult for the vapor in the inner drawer to diffuse into the air layer, and thereby the moisture in the inner drawer is ensured so that the humidity is kept to be a high value.

A refrigeration apparatus includes a multi-stage compression mechanism, heat source-side and usage side heat exchangers each operable as a radiator/evaporator, a switching mechanism switchable between cooling and heating operation states, a second-stage injection tube, an intermediate heat exchanger and an intermediate heat exchanger bypass tube. The intermediate heat exchanger bypass tube ensures that refrigerant discharged from the first-stage compression element and drawn into the second-stage compression element is not cooled by the intermediate heat exchanger during a heating operation. Injection rate optimization controls a flow rate of refrigerant returned to the second-stage compression element through the second-stage injection tube so that an injection ratio is greater during the heating operation than during a cooling operation. The injection ratio is a ratio of flow rate of the refrigerant returned to the second-stage compression element through the second-stage injection tube relative to flow rate of the refrigerant discharged from the compression mechanism.

The invention relates to a permanent magnet system used in rotary magnetic refrigerator, wherein, the stator comprises a hollow cylinder permanent magnet and a magnetic conductive polar shoe; the hollow cylinder magnet is assembled symmetry around the central axle of the section of magnet via even permanent magnets; the magnetic direction of permanent magnet is decided by Halbach rotation theory; the magnetic conductive polar shoes are formed by two metals with better magnetic conductivity, while one side face is engaged with the wall of the chamber of permanent magnet, while another side is arc; two magnetic conductive polar shoes are contacted on the wall of chamber at the center of N and S polarities, with 180 degree spatial difference. The rotor comprises a rotary axle, a magnetic conductive iron corn and a magnetic medium; the rotary is cylinder; the iron corn is made from magnetic conductive magnet, as the cylinder with central hole or with cut-off two edges, sheathing the rotary axle while the rotary axle is at the center; two magnetic mediums are mounted on two outer arc faces of magnetic conductive iron corn, while the spatial positions are 180 degree different. The invention can be used as rotational permanent magnetic device.

An outside air temperature sensor (231) for detecting the temperature of outside air, and a control means (240) for controlling the operating capacity of a supercool compressor (221) are provided. The control means (240) controls the operation of the supercool compressor (221) based on the state of refrigerant of a refrigerant circuit (20) flowing through a supercool heat exchanger (210) and the temperature of outside air detected by the outside air temperature sensor (231).

A refrigeration appliance is provided which includes a cabinet with a first openable door providing access to a first refrigeration compartment and a second openable door providing access to a second refrigeration compartment. The second openable door has a portion thereof positioned below a portion of the first openable door. A rail separates the first refrigeration compartment and the second refrigeration compartment. A water dispenser is contained in the rail, as well as electronic controls for the refrigeration appliance. The dispenser is arranged to be stationary relative to the refrigeration appliance while the doors are open or closed. The rail may be removed and replaced, and with the water and electronic controls located in the rail, repairs are performed more efficiently and flexibility in manufacturing is enhanced. A drip tray is formed in an exterior side of the second openable door below the dispenser. When the door is opened, the drip tray moves away from the dispenser, permitting the dispenser to be used with larger receptacles than can be accommodated with the drip tray under the dispenser.

The invention relates to a refrigerating appliance (1) including a body (2) in which a refrigerating compartment (3) is defined and a door (4) connected to said body to open and close said compartment, and a height adjustable support assembly (10,10',100) connected to said body and/or said door. The refrigerating appliance (1) further comprises a rail (23a,23b;23a',23b') including a rack portion (21) attached to said body (2) within said compartment (3) and/or to said door (4), the rail extending substantially along a vertical axis. The height adjustable support assembly (10;10';100) comprises: a support member (11;11';11") to support items to be refrigerated/frozen; a height adjustment gear (15a,15b) rotatably connected to the support member (11;11';11"), the gear meshing with the rack portion (21) so that the support member can be vertically moved along the rail (23a,23b;23a',23b');a unidirectional stopper unit (19; 70) to regulate rotation of the height adjustment gear (15a,15b) when meshed with the rack portion (21), allowing an upward movement of the support member (11;11';11 ") along the vertical axis and blocking downward movements along the vertical axis; and a lever (50) coupled to the unidirectional stopper unit, the lever being apt to disengage the unidirectional stopper unit so as to allow a downward movement of the support member (11;11';11") along the vertical axis when operated.

An engine unit (U1) containing an electricity generator (22), an electricity-generator engine (21), and a console panel (29) is mounted in the lower part of a trailer. A refrigeration equipment unit (U2) containing a converter (23), inverters (24, 25, 26), and a refrigerant circuit (30) is mounted in the ceiling part of a refrigeration storage compartment (C). The engine unit (U1) and the refrigeration equipment unit (U2) are connected together by electric wiring.

An air conditioning unit for a combined refrigeration plant and heat pump mode of operation for vehicles is disclosed, wherein the air conditioning unit includes a primary circuit and a secondary passage, and a power consumption required by the air conditioning unit to heat the passenger compartment is minimized.

In a soil cold-storage and soil coupling heat pump integrated system, between the condenser and the cooling tower of the refrigeration plant, between the condenser and the underground built-in pipe heat exchanger, between the condenser and the users the pipeline is connected to the circuit, between the evaporator and the users, between the evaporator and the underground built-in pipe heat exchanger the pipeline is connected to the circuit, between the underground built-in pipe heat exchanger and the users the pipeline is connected to the circuit.

A high efficient and reliable adsorption refrigerator based on isolation heat pipe is used in refrigeration plant technical field. It includes left adsorption bed, left condenser and left isolator comprising left vacuum cavity, right adsorption bed, right condenser and right isolator comprising right vacuum cavity, evaporator, left isolator and right isolator forming heat pipe working cavity , the left and right vacuum cavities and heat pipe working cavity forming an integration by enclosure, cold water inlet and outlet linked to evaporator, acuum valve linking left and right vacuum cavities which has cooling agent in them, heat pipe working substance filled in heat pipe working cavity components linked to valve component include heat medium, left and right adsorption bed, inlet and outlet pipe of heat medium and inlet and outlet pipe of inlet and outlet pipe. The invention has simple structure, automatic operation effective use of low gradeheat energy and no pollution, it is a green energy-saving refrigeration component.

In a refrigerating apparatus in which a plurality of application-side heat exchangers (41, 45, 51) are connected to a heat-source side heat exchanger (4), liquid lines for a plurality of channels in a refrigerant circuit (1E) share a liquid side communication pipe (11) in order to reduce the number of pipes. Further, the liquid side communication pipe (11) is provided adjacent to a low-pressure gas side communication pipe (15) for at least one channel so as to contact it in order to supercool a liquid refrigerant by a low-pressure gas refrigerant. Thus, workability for connecting the pipes is improved and a refrigerating ability may not be decreased even if communication pipes (11, 15, 17) become long.

A refrigeration apparatus (1) is disclosed which is provided with multiple systems of utilization-side heat exchangers (20, 30, 40) and in which liquid-side interunit piping lines (53, 54, 55) are combined into a single liquid-side interunit piping line in multiple systems of liquid lines. When the refrigeration apparatus (1) provides space heating of 100% heat recovery without the use of an outdoor heat exchanger (15), the flow of refrigerant in a refrigerant circuit (50) is stabilized even when the temperature of outside air is low, thereby preventing the capacity to provide refrigeration from decreasing. In addition, in order to prevent shutdown of the refrigeration apparatus (1) due to malfunction, a liquid refrigerant inflow passageway (66) is connected to a heat source-side liquid pipe (62) of an outdoor unit (10), the heat source-side liquid pipe (62) being connected to an integrated liquid pipe (53) of the liquid-side interunit piping lines (53, 54, 55), and to an inlet port of the a receiver (17), and a switch valve (SV1) capable of being on-off controlled is disposed in the liquid refrigerant inflow passageway (66).

The invention discloses a master batch composition, a compound board and a preparation method of the compound board, and a refrigeration plant. The master batch composition comprises 20-40 parts by weight of a matrix resin which is selected from HIPS (High Impact Polystyrene), 30-50 parts by weight of a flexibilizer which is selected from at least one of SBS (Styrene-Butadiene-Styrene), butadiene styrene rubber, naphthenic oil, PE-g-PS (Polythene-g-Polystyrene), POE-g-PS (Polyolefin-g-Polystyrene), EPDM-g-PS (Ethylene-Propylene-Diene Monomer-g-Polystyrene), 3-20 parts by weight of pigment, 0-10 parts by weight of a brightener, 0-3 parts by weight of an anti-light and oxygen ageing agent and 5-20 parts by weight of an antistatic agent. Thus, the master batch composition can effectively prepare a liner and can further increase the strength of the surface of the liner, increase the anti-cracking ability and particularly the resistance to chemical corrosions such as oils, cleaning agents and the like, increase the weather resistance and the surface gloss and increase the antistatic and dirt-proof functions, so that the liner is easier to clean.