CN104903663A - Refrigeration appliance with two evaporators - Google Patents

Refrigeration appliance with two evaporators Download PDF

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Publication number
CN104903663A
CN104903663A CN201380052861.8A CN201380052861A CN104903663A CN 104903663 A CN104903663 A CN 104903663A CN 201380052861 A CN201380052861 A CN 201380052861A CN 104903663 A CN104903663 A CN 104903663A
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CN
China
Prior art keywords
evaporimeter
reversal valve
output
cold
dislocation
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Granted
Application number
CN201380052861.8A
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Chinese (zh)
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CN104903663B (en
Inventor
A·巴布克
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BSH Hausgeraete GmbH
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BSH Bosch und Siemens Hausgeraete GmbH
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Publication of CN104903663A publication Critical patent/CN104903663A/en
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Publication of CN104903663B publication Critical patent/CN104903663B/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B5/00—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity
    • F25B5/02—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity arranged in parallel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
    • F25B41/22—Disposition of valves, e.g. of on-off valves or flow control valves between evaporator and compressor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/30—Expansion means; Dispositions thereof
    • F25B41/385—Dispositions with two or more expansion means arranged in parallel on a refrigerant line leading to the same evaporator
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B49/00—Arrangement or mounting of control or safety devices
    • F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
    • F25D11/02—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures
    • F25D11/022—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures with two or more evaporators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/04—Refrigeration circuit bypassing means
    • F25B2400/0409—Refrigeration circuit bypassing means for the evaporator
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/05—Compression system with heat exchange between particular parts of the system
    • F25B2400/052—Compression system with heat exchange between particular parts of the system between the capillary tube and another part of the refrigeration cycle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/05—Compression system with heat exchange between particular parts of the system
    • F25B2400/054—Compression system with heat exchange between particular parts of the system between the suction tube of the compressor and another part of the cycle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2600/00—Control issues
    • F25B2600/05—Refrigerant levels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2600/00—Control issues
    • F25B2600/25—Control of valves
    • F25B2600/2511—Evaporator distribution valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2600/00—Control issues
    • F25B2600/25—Control of valves
    • F25B2600/2519—On-off valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2700/00—Sensing or detecting of parameters; Sensors therefor
    • F25B2700/21—Temperatures
    • F25B2700/2106—Temperatures of fresh outdoor air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B40/00—Subcoolers, desuperheaters or superheaters

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)

Abstract

The invention relates to a refrigeration appliance with a refrigerant circuit (200), which has a compressor (202), at least one first evaporator (214) and a second evaporator (216). The refrigerant circuit (200) has a main branch (278), at least one first parallel branch (274) and a second parallel branch (276), wherein the compressor (202) is arranged in the main branch (278), the first evaporator (214) is arranged in the first parallel branch (274) and the second evaporator (216) is arranged in a second parallel branch (276). A diverter valve (208) having at least one inlet (222), a first outlet (224) and a second outlet (226) is arranged between a compressor outlet (234) of the compressor (202), an evaporator inlet (248) of the first evaporator (214) and an evaporator inlet (256) of the second evaporator (216), wherein the inlet (222) of said diverter valve is connected to the main branch (278), the first outlet (224) of the diverter valve is connected to the first parallel branch (274) and the second outlet (226) of the diverter valve is connected to the second parallel branch (276) so as to carry refrigerant. According to the invention, a second diverter valve (218) having at least one first inlet (228), a second inlet (230) and an outlet (232) is arranged among a compressor inlet (264) of the compressor (202), an evaporator outlet (250) of the first evaporator (214) and an evaporator outlet (258) of the second evaporator (216), wherein the first inlet (228) of said second diverter valve is connected to the first parallel branch (274), the second inlet (230) of the second diverter valve is connected to the second parallel branch (276) and the outlet (232) of the second diverter valve is connected to the refrigerant circuit (200) so as to carry refrigerant.

Description

There is the refrigerating appliance of two evaporimeters
The present invention relates to a kind of refrigerating appliance with refrigerant loop, described refrigerant loop has a compressor and at least the first evaporimeter and the second evaporimeter, wherein, described refrigerant loop has main branch road and at least the first branch road arranged side by side and the second branch road arranged side by side, wherein, compressor is arranged in the main branch, first evaporimeter is arranged in the first branch road arranged side by side and the second evaporimeter is arranged in the second branch road arranged side by side, and wherein, the reversal valve with input and at least the first output and the second output is furnished with at the output of compressor with between the input of the first evaporimeter and the input of the second evaporimeter, wherein, input and refrigerant loop, first output with the first branch road arranged side by side and the second output be connected to guide the mode of cold-producing medium with the second branch road arranged side by side.
Refrigerating appliance, the refrigerating appliance being especially configured to home appliances are known and family expenses be used in the family or in catering field, to deposit perishable food and/or beverage at the temperature determined.
From the known refrigerating appliance with refrigerant loop of DE 10 2,006 015 989 A1, this refrigerant loop has two evaporimeters except compressor, and described two evaporimeters are arranged in refrigerant loop mutually side by side.In addition, refrigerant loop has two position three-way valve (3/2-Wegeventil), and described two position three-way valve is with the output of compressor and be connected with each input of two evaporimeters.Each evaporimeter in two evaporimeters is attached troops to a unit each cold lattice.In the refrigerating appliance with more than one evaporimeter, the distribution of cold-producing medium in refrigerant loop is most important, optimally to fill two evaporimeters.Evaporimeter is run, to reach high evaporating temperature respectively with the compactedness optimized.Avoid the spilling of liquid cold-producing medium, because the suction tube cooling therefore caused causes the loss of cooling power simultaneously.In the evaporimeter of such connection arranged side by side, as such as guaranteed in two frost-free system (Tein-Nofrost-System), by the cold-producing medium not condensation in colder evaporimeter of evaporating when the comparatively warm cold lattice in two cold lattice run.For this reason, DE 10 2,006 015 989 A1 is arranged, and when there is refrigerant requirements in the first cold lattice, first loads the evaporimeter of the second cold lattice in preliminary step with cold-producing medium.Then, be closed to the refrigerant loop of the evaporimeter of the second cold lattice, and only also load the evaporimeter of the first cold lattice with cold-producing medium.Be check-valves to this alternative solution, this check-valves is arranged between in compressor and two evaporimeters.So, can by running the evaporimeter of attaching troops to a unit in comparatively warm cold lattice with the compactedness improved from the colder evaporimeter suction refrigeration agent in two evaporimeters.But described suction needs energy and therefore improves the energy requirement of refrigerating appliance.
Therefore, the task based on the present invention is to provide the refrigerating appliance of the energy requirement with reduction.
This task solves according to the theme of the feature of independent claims by having.Favourable expansion scheme is the theme of dependent claims, description and accompanying drawing.
The present invention is based on such understanding: can run with the compactedness optimized the evaporimeter be not separated at that time by of fully separating in described two evaporimeters.
According to first aspect, task according to the present invention is solved by such refrigerating appliance, in this refrigerating appliance, at the compressor input of compressor be furnished with second reversal valve with at least first input end, the second input and an output between the evaporimeter output of the first evaporimeter and the evaporimeter output of the second evaporimeter, wherein, described first input end and the first branch road arranged side by side, the second input with the second branch road arranged side by side and output be connected to guide the mode of cold-producing medium with refrigerant loop.Realize such technological merit thus, in described two evaporimeters can be run respectively with the compactedness optimized.Thus, from evaporimeter suction refrigeration agent other be at that time no longer required.Therefore, costs energy need not be used for suction refrigeration agent, thus reduce the energy requirement of refrigerating appliance.By the first reversal valve, cold-producing medium can be directed to selectively in the first or second branch road arranged side by side, and, by the second reversal valve, the first or second branch road arranged side by side can be made selectively to be connected with refrigerant loop.Not only the first reversal valve but also the second reversal valve can be two position three-way valves.Two position three-way valve has two valve seats, wherein, always alternately stays open or close in described two valve seats.Therefore, when the first reversal valve, in the first dislocation of the first reversal valve, open the first output and close the second output, or in the second dislocation of the first reversal valve, close the first output and open the second output.When the second reversal valve, in the first dislocation of the second reversal valve, open first input end and close the second input, or in the second dislocation of the second reversal valve, close first input end and open the second input.
In a kind of favourable embodiment, between the first reversal valve and the evaporimeter input of the first evaporimeter, be furnished with first throttle device, and be furnished with second choke between the second reversal valve and the evaporimeter input of the second evaporimeter.Realize such technological merit thus, before each evaporimeter, connect a flow controller mated with this evaporimeter.Therefore, the operation of efficiency that has of two evaporimeters is possible.
In a kind of favourable embodiment, at compressor be furnished with suction tube-throttle pipe-heat exchanger between the first evaporimeter and the second evaporimeter in refrigerant loop, described suction tube-throttle pipe-heat exchanger in heat transmission mode with first throttle device and/or be connected with second choke.Realize such technological merit thus, use from evaporimeter flow out cold-producing medium more than cold because from first throttle device and/or second choke cold-producing medium extract heat.
In a kind of favourable embodiment, first reversal valve has the first dislocation, in this first dislocation, first output of the first reversal valve with for cold-producing medium by mode be connected with the evaporimeter input of the first evaporimeter, and the second output of the first reversal valve with for cold-producing medium not by mode locking.Realize such technological merit thus, the environment temperature such as different from different rim conditions matchingly, neatly running refrigerating utensil be possible.
In a kind of favourable embodiment, first reversal valve has the second dislocation, in this second dislocation the first reversal valve the second output with by mode be connected with the evaporimeter input of the second evaporimeter, and the first output of the first reversal valve with for cold-producing medium not by mode locking.Realize such technological merit thus, the environment temperature such as different from different rim conditions matchingly, neatly running refrigerating utensil be possible.
In a kind of favourable embodiment, second reversal valve has the first dislocation, in this first dislocation, the first input end of the second reversal valve with for cold-producing medium by mode be connected with the evaporimeter output of the first evaporimeter, and the second input of the second reversal valve with for cold-producing medium not by mode locking.Realize such technological merit thus, the environment temperature such as different from different rim conditions matchingly, neatly running refrigerating utensil be possible.
In a kind of favourable embodiment, second reversal valve has the second dislocation, in this second dislocation, second input of the second reversal valve with by mode be connected with the evaporimeter output of the second evaporimeter, and the first input end of the second reversal valve with for cold-producing medium not by mode locking.Realize such technological merit thus, by cold-producing medium is transferred to another cold lattice from cold lattice, the environment temperature such as different from different rim conditions matchingly, neatly running refrigerating utensil be possible.
In a kind of favourable embodiment, refrigerating appliance can run in common operation, and in this common operation, the first reversal valve is at least temporarily in the first dislocation and the second reversal valve is in the first dislocation simultaneously.Realize such technological merit thus, the first evaporimeter can be linked in refrigerant loop and the second evaporimeter can separate with refrigerant loop completely.Therefore, eliminate cold-producing medium to transfer to undesirably the first evaporimeter from the second evaporimeter.Therefore, the operation with the compactedness of optimization is possible.
In a kind of favourable embodiment, refrigerating appliance can run in common operation, and in this common operation, the first reversal valve is at least temporarily in the second dislocation and the second reversal valve is in the second dislocation simultaneously.Realize such technological merit thus, the second evaporimeter can be linked in refrigerant loop and the first evaporimeter can separate with refrigerant loop completely.Thus, it is possible for running two evaporimeters with having the compactedness of optimization respectively.
In a kind of favourable embodiment, refrigerating appliance can run in transmission runs, and in this transmission runs, the first reversal valve is at least temporarily in the first dislocation and the second reversal valve is in the second dislocation simultaneously.Realize such technological merit thus, cold-producing medium can be transferred to the second evaporimeter from the first evaporimeter.Therefore, compactedness can be mated by transmitting operating operation.
In a kind of favourable embodiment, refrigerating appliance can run in transmission runs, and in this transmission runs, the first reversal valve is at least temporarily in the second dislocation and the second reversal valve is in the first dislocation simultaneously.Realize such technological merit thus, cold-producing medium also can be transferred to the first evaporimeter from the second evaporimeter.Therefore, can by transmitting operating operation to mate the compactedness of two evaporimeters.
In a kind of favourable embodiment, refrigerant loop has liquefier, wherein, between described liquefier and the first reversal valve, is provided with stop valve.Realize such technological merit thus, the less desirable transfer of cold-producing medium from liquefier to evaporimeter during the dwell time of compressor can be compressed on.
In a kind of favourable embodiment, in transmission runs, when compressor is driven, stop valve at least temporarily forbids the flow of refrigerant in refrigerant loop.Realize such technological merit thus, can from the first evaporimeter and/or the second evaporimeter suction refrigeration agent by the swabbing action of compressor.
In a kind of favourable embodiment, refrigerating appliance has control device, and this control device is at least connected with the first reversal valve and the second reversal valve for controlling the first reversal valve and the second reversal valve.Realize such technological merit thus, by controlling targetedly, the environment temperature such as different from different rim conditions matchingly, neatly running refrigerating utensil be possible.
In a kind of favourable embodiment, described control device is at least connected with temperature sensor in the mode transmitting measuring-signal.Realize such technological merit thus, such as when higher than threshold value given in advance, for sensed temperature, described control device from common operation change to transmit run and therefore automatically carry out the coupling of compactedness, thus as such as also run with the compactedness optimized in the torrid zone at extreme temperature.
Other embodiment is explained referring to accompanying drawing.Accompanying drawing illustrates:
The front view of Fig. 1 refrigerating appliance, and
The indicative icon of the refrigerant loop of the refrigerating appliance of Fig. 2 Fig. 1.
Fig. 1 illustrates that refrigerator is as the embodiment for refrigerating appliance 100., this refrigerating appliance is configured to refrigerating combination in the ongoing illustrated embodiment and also has two frost-free system in the ongoing illustrated embodiment.
In the ongoing illustrated embodiment, refrigerating appliance 100 has the first cold lattice 102 on top, and in the ongoing illustrated embodiment, these first cold lattice are configured to freezer.In addition, in the ongoing illustrated embodiment, refrigerating appliance 100 has the second cold lattice 104 of bottom, and in the ongoing illustrated embodiment, these second cold lattice are configured to refrigerate lattice.
Fig. 2 illustrates the embodiment of the refrigerant loop 200 of such refrigerating appliance 100.
Refrigerant loop 200 has compressor 202, liquefier 204, stop valve 206, first reversal valve 208, first throttle device 210, second choke 212, first evaporimeter 214, second evaporimeter 216, second reversal valve 218 and suction tube-throttle pipe-heat exchanger 220.
In the ongoing illustrated embodiment, compressor 202 is mechanically operated component, this component from two evaporimeters 214, a suction refrigeration agent steam in 216 and be delivered to liquefier 204 against higher pressure.
Liquefier 204 is configured to heat exchanger, and in this heat exchanger, the cold-producing medium through evaporation is released heat by cooling medium externally and surrounding air and is liquefied after being compressed.
In the ongoing illustrated embodiment, the first evaporimeter 214 and the second evaporimeter 216 are configured to heat exchanger, and in this heat exchanger, namely liquid cold-producing medium after inflation by being evaporated in the absorption of air of cooling cabinet inside heat from medium to be cooled.In addition, in the ongoing illustrated embodiment, the first evaporimeter 214 and/or the second evaporimeter 216 are configured to static evaporimeter.Thus, there is no need for the ventilation blower of the forced flow making the first evaporimeter 214 and/or the second evaporimeter 216.
At this, in the ongoing illustrated embodiment, the first evaporimeter 214 is attached troops to a unit in the first cold lattice 102 and the second evaporimeter 216 is attached troops to a unit in the second cold lattice 104.In the ongoing illustrated embodiment, not only the first evaporimeter 214 but also the second evaporimeter 216 are configured to flake evaporators (Lamellenverdampfer).
First throttle device 210 is attached troops to a unit in the first evaporimeter 214 and second choke 212 is attached troops to a unit in the second evaporimeter 216.Flow controller 210,212 is the device for reducing pressure by reducing cross-sectional area.
First throttle device 210 and the first evaporimeter 214 are connected, and second choke 212 and the second evaporimeter 216 are connected, and wherein, in the ongoing illustrated embodiment, these two series connection connect side by side.That is, refrigerant loop 200 is divided into two branch roads 274,276 arranged side by side, and wherein, in the ongoing illustrated embodiment, compressor 202, liquefier 204, stop valve 206 and suction tube-throttle pipe-heat exchanger 220 are arranged in the main branch road 278 of refrigerant loop 200.
Cold-producing medium is a kind of fluid, this fluid is used in and is producing heat trnasfer in cold system, this system absorbs heat when the temperature of fluid is low and pressure is low, and releases heat when the temperature of fluid is higher and pressure is higher, and the state wherein generally including fluid changes.
In addition, in the ongoing illustrated embodiment, refrigerant loop 200 comprises stop valve 206, and in the ongoing illustrated embodiment, this stop valve is controlled magnet valve, can interrupt the flow of refrigerant in refrigerant loop 200 by means of this magnet valve.
In addition, in the ongoing illustrated embodiment, refrigerant loop 200 comprises suction tube-throttle pipe-heat exchanger 220, thus also use from evaporimeter flow out cold-producing medium more than cold.
In the ongoing illustrated embodiment, the first reversal valve 208 has input 222 and the first output 224 and the second output 226.Second reversal valve 218 has first input end 228 and the second input 230 and output 232.By the first reversal valve 208, selectively cold-producing medium can be directed in the first branch road 274 arranged side by side or in the second branch road 276 arranged side by side, and the first branch road 274 arranged side by side or the second branch road 276 arranged side by side can be made selectively to be connected with compressor 202 by the second reversal valve 218.
In the ongoing illustrated embodiment, not only the first reversal valve 208 but also the second reversal valve 218 are configured to two position three-way valve.Two position three-way valve has two valve seats, and wherein, one in described two valve seats always alternately stays open or closes.Therefore, when the first reversal valve, in the first dislocation of the first reversal valve 208, open the first output 224 and close the second output 226, or in the second dislocation of the first reversal valve 208, close the first output 224 and open the second output 226.When second reversal valve 218, in the first dislocation of the second reversal valve 218, open first input end 228 and close the second input 230, or in the second dislocation of the second reversal valve 218, close first input end 228 and open the second input 230.
Compressor 202 has compressor output end 234, and this compressor output end is connected to guide the mode of cold-producing medium with the liquefier input 236 of liquefier 204.
The liquefier output 238 of liquefier 204 is connected to guide the mode of cold-producing medium with the input joint 240 of stop valve 206.
The output end connector 242 of stop valve 206 is connected to guide the mode of cold-producing medium with the input 222 of the first reversal valve 208.
First output 224 of the first reversal valve 208 is connected with the flow controller input 244 of first throttle device 210.
The flow controller output 246 of first throttle device 210 is connected to guide the mode of cold-producing medium with the evaporimeter input 248 of the first evaporimeter 214.
The evaporimeter output 250 of the first evaporimeter 214 is connected to guide the mode of cold-producing medium with the first input end 230 of the second reversal valve 218.
Second output 226 of the first reversal valve 208 is connected to guide the mode of cold-producing medium with the flow controller input 252 of second choke 212.
The flow controller output 254 of second choke 212 is connected to guide the mode of cold-producing medium with the evaporimeter input 256 of the second evaporimeter 216.
The evaporimeter output 258 of the second evaporimeter 214 is connected to guide the mode of cold-producing medium with the second input 228 of the second reversal valve 218.
The output 232 of the second reversal valve 218 is connected to guide the mode of cold-producing medium with the heat exchanger input 260 of suction tube-throttle pipe-heat exchanger 220.
The heat exchanger output 262 of suction tube-throttle pipe-heat exchanger 220 is connected to guide the mode of cold-producing medium with the compressor input 264 of compressor 202 by suction tube 266.
First reversal valve 208 is connected with control device 268 in the mode of transfer control signal by control circuit 270 with the second reversal valve 218.In addition, stop valve 206 by control circuit 280 and compressor 202 be connected with control device 268 in the mode of transfer control signal by control circuit 282.
When common operation, the first reversal valve 208 and the second reversal valve 218 control in the first dislocation by control device 268.Meanwhile, the second reversal valve 218 controls in the first dislocation by control device 268.Thus, run in the first stage of circulation common, flow of refrigerant through first throttle device 210 and the first evaporimeter 214 and therefore cooling is attached troops to a unit in the cold lattice 102 of the first evaporimeter 214.Relatively, run in the first stage of circulation common, second choke 212 and the second evaporimeter 216 are separated with refrigerant loop 200.
Run in the second stage of circulation common, the first reversal valve 208 controls in the second dislocation by control device 268.Meanwhile, the second reversal valve 218 controls in the second dislocation by control device 268.Thus, run in the second stage of circulation common, flow of refrigerant is through second choke 212 and the second evaporimeter 216, and therefore cooling is attached troops to a unit in the cold lattice 104 of the second evaporimeter 216.Relatively, run in the second stage of circulation common, first throttle device 210 and the first evaporimeter 214 are separated with refrigerant loop 200.
With in current embodiment differently, commonly run circulation and can start with second stage illustrated above, the first stage follows.
By making flow controller 210 respectively, 212 and evaporimeter 214,216 alternately separate, can respectively with the loading of the optimization of cold-producing medium, namely with optimize compactedness run not only the first evaporimeter 214 but also the second evaporimeter 216.Therefore, need not from another evaporimeter 214,216 suction refrigeration agent at that time, thus for this reason need not costs energy.Therefore, the energy ezpenditure of refrigerating appliance 100 is reduced.
In addition, in the ongoing illustrated embodiment, control device 268 can run the first reversal valve 208 and the second reversal valve 218 when transmitting and running.
Transmit run time, such as, from the second evaporimeter 216 suction refrigeration agent, there to be sufficient cold-producing medium can for the operation of the first evaporimeter 214.For this reason, the first reversal valve 208 controls in its first dislocation by control device 268.In addition, the second reversal valve 218 controls in its second dislocation by control device 268.Now, then change to common operation from the second evaporimeter 216 suction refrigeration agent.
In addition, in the ongoing illustrated embodiment, also can from the first evaporimeter 214 suction refrigeration agent.For this reason, the first reversal valve 208 controls in its second dislocation by control device 268.In addition, the second reversal valve 218 controls in its first dislocation by control device 268.Now, then change to common operation from the first evaporimeter 214 suction refrigeration agent.
Due to the compactedness that liquefier 204 is different when the first evaporimeter 214 runs with the second evaporimeter 216, produce the change of effective refrigerant charge in from the first stage of common operation to each replacing of second stage.Transmit operation by such as changing to from common operation in interval given in advance, achieve: due to the different running temperature of the first evaporimeter 214 and the second evaporimeter 216 cause, when common operation the transfer of cold-producing medium again against carrying out, thus the operation with the compactedness optimized respectively of the first evaporimeter 214 and the second evaporimeter 216 can be guaranteed.Alternatively, or additionally, when transmitting operation, stop valve 206 can be made to be in its blocking when running compressor 202, thus interrupt the less desirable flow of refrigerant in refrigerant loop 200.Then, by the swabbing action of compressor 202, can from the first evaporimeter 214 and/or the second evaporimeter 216 suction refrigeration agent.
In addition, in the ongoing illustrated embodiment, control device 268 is connected with temperature sensor 272.When the environment temperature of the temperature value sensed by temperature sensor 272, such as refrigerating appliance is higher than threshold value given in advance, changed to transmitting operation by control device 268, to make refrigerant amount and to account for mating of leading rim condition.Therefore, such as under the rim condition (the high cold conduction caused due to the high environment temperature when air humidity is high) in the torrid zone, moisture condensation on suction tube 266 is stoped.
In addition, refrigerant loop 200 can be used in, except the second cold lattice 104 that the be configured to freezer first cold lattice 102 and being configured to refrigerate lattice, and cooling the 3rd cold lattice, such as fresh-keeping lattice or also have other cold lattice, as the 4th or the 5th cold lattice etc.So, each in described cold lattice is respectively attached troops to a unit and is had an evaporimeter, and this evaporimeter is arranged in the branch road arranged side by side of refrigerant loop 200.Therefore, the quantity of evaporimeter equals the quantity of the branch road arranged side by side of refrigerant loop 200.Correspondingly, the first reversal valve 208 has the output of the quantity corresponding to the quantity of branch road arranged side by side, and the second reversal valve 218 has the input of respective numbers.So, in addition, the first reversal valve 208 and the second reversal valve 218 have the dislocation of the quantity corresponding to the quantity of branch road arranged side by side.
Reference numerals list
100 refrigerating appliances
102 first cold lattice
104 second cold lattice
200 refrigerant loops
202 compressors
204 liquefiers
206 stop valves
208 first reversal valves
210 first throttle devices
212 second choke
214 first evaporimeters
216 second evaporimeters
218 second reversal valves
220 suction tubes-throttle pipe-heat exchanger
The input of 222 first reversal valves
First output of 224 first reversal valves
Second output of 226 first reversal valves
The first input end of 228 second reversal valves
Second input of 230 second reversal valves
The output of 232 second reversal valves
234 compressor output ends
236 liquefier inputs
238 liquefier outputs
240 input joints
242 output end connectors
The flow controller input of 244 first throttle devices
The flow controller output of 246 first throttle devices
The evaporimeter input of 248 first evaporimeters
The evaporimeter output of 250 first evaporimeters
The flow controller input of 252 second choke
The flow controller output of 254 second choke
The evaporimeter input of 256 second evaporimeters
The evaporimeter output of 258 second evaporimeters
260 heat exchanger inputs
262 heat exchanger outputs
264 compressor inputs
266 suction tubes
268 control device
270 control circuits
272 temperature sensors
274 first branch roads arranged side by side
276 second branch roads arranged side by side
278 main branch roads
280 control circuits
282 control circuits

Claims (15)

1. there is the refrigerating appliance (100) of refrigerant loop (200), described refrigerant loop has compressor (202) and at least the first evaporimeter (214) and the second evaporimeter (216), wherein, described refrigerant loop (200) has main branch road (278) and at least has the first branch road (274) arranged side by side and the second branch road (276) arranged side by side, wherein, described compressor (202) is arranged in described main branch road (278), described first evaporimeter (214) is arranged in the described first branch road (274) arranged side by side and described second evaporimeter (216) is arranged in the described second branch road (276) arranged side by side, and wherein, at the compressor output end (234) of described compressor (202) be furnished with between the evaporimeter input (248) of described first evaporimeter (214) and the evaporimeter input (256) of described second evaporimeter (216) and there is input (222) and the reversal valve (208) at least with the first output (224) and the second output (226), wherein, described input (222) and described main branch road (278), described first output (224) with the described first branch road (274) arranged side by side and described second output (226) be connected to guide the mode of cold-producing medium with the described second branch road (276) arranged side by side, it is characterized in that, at the compressor input (264) of described compressor (202) and being furnished with between the evaporimeter output (250) of described first evaporimeter (214) and the evaporimeter output (258) of described second evaporimeter (216), at least there is first input end (228) and the second input (230) and there is second reversal valve (218) of output (232), wherein, described first input end (230) and the described first branch road (274) arranged side by side, described second input (230) with the described second branch road (276) arranged side by side and described output (232) be connected to guide the mode of cold-producing medium with described refrigerant loop (200).
2. refrigerating appliance according to claim 1 (100), it is characterized in that, between described first reversal valve (208) and the described evaporimeter input (248) of described first evaporimeter (214), be furnished with first throttle device (210), and be furnished with second choke (212) between described second reversal valve (218) and the described evaporimeter input (256) of described second evaporimeter (216).
3. refrigerating appliance according to claim 2 (100), it is characterized in that, at described compressor (202) be furnished with suction tube-throttle pipe-heat exchanger (220) between described first evaporimeter (214) and described second evaporimeter (216) in described refrigerant loop (200), described suction tube-throttle pipe-heat exchanger in heat transmission mode with described first throttle device (210) and/or be connected with described second choke (212).
4. the refrigerating appliance (100) according to any one of the preceding claims, it is characterized in that, described first reversal valve (208) has the first dislocation, in this first dislocation, described first output (224) of described first reversal valve (208) with for cold-producing medium by mode be connected with the described evaporimeter input (248) of described first evaporimeter (214), and described second output (226) of described first reversal valve (208) with for cold-producing medium not by mode locking.
5. refrigerating appliance according to claim 4 (100), it is characterized in that, described first reversal valve (208) has the second dislocation, in this second dislocation, described second output (226) of described first reversal valve (208) with by mode be connected with the described evaporimeter input (256) of described second evaporimeter (216), and described first output (224) of described first reversal valve (208) with for cold-producing medium not by mode locking.
6. the refrigerating appliance (100) according to any one of the preceding claims, it is characterized in that, described second reversal valve (218) has the first dislocation, in this first dislocation, the described first input end (228) of described second reversal valve (218) with for cold-producing medium by mode be connected with the described evaporimeter output (250) of described first evaporimeter (214), and described second input (230) of described second reversal valve (218) with for cold-producing medium not by mode locking.
7. refrigerating appliance according to claim 6 (100), it is characterized in that, described second reversal valve (218) has the second dislocation, in this second dislocation, described second input (230) of described second reversal valve (218) with by mode be connected with the described evaporimeter output (258) of described second evaporimeter (216), and the described first input end (228) of described second reversal valve (218) with for cold-producing medium not by mode locking.
8. the refrigerating appliance (100) according to any one of the preceding claims, it is characterized in that, described refrigerating appliance (100) can run in common operation, in this common operation, described first reversal valve (208) is at least temporarily in the first dislocation and described second reversal valve (218) is in the first dislocation simultaneously, wherein, in described first dislocation of described first reversal valve (208), described first output (224) of described first reversal valve (208) with for cold-producing medium by mode to be connected with the described evaporimeter input (248) of described first evaporimeter (214) and described second output (226) of described first reversal valve (208) with for cold-producing medium not by mode locking, and wherein, in described first dislocation of described second reversal valve (218), the described first input end (228) of described second reversal valve (218) with for cold-producing medium by mode be connected with the described evaporimeter output (250) of described first evaporimeter (214), and described second input (230) of described second reversal valve (218) with for cold-producing medium not by mode locking.
9. the refrigerating appliance (100) according to any one of the preceding claims, it is characterized in that, described refrigerating appliance (100) can run in common operation, in this common operation, described first reversal valve (208) is at least temporarily in the second dislocation and described second reversal valve (218) is in the second dislocation simultaneously, wherein, in the second dislocation of described first reversal valve (208), described second output (226) of described first reversal valve (208) with by mode be connected with the evaporimeter input (256) of described second evaporimeter (216), and described first output (224) of described first reversal valve (208) with for cold-producing medium not by mode locking, and wherein, in described second dislocation of described second reversal valve (218), described second input (230) of described second reversal valve (218) with by mode be connected with the evaporimeter output (258) of described second evaporimeter (216), and, the described first input end (228) of described second reversal valve (218) with for cold-producing medium not by mode locking.
10. the refrigerating appliance (100) according to any one of the preceding claims, it is characterized in that, described refrigerating appliance (100) can run in transmission runs, in this transmission runs, described first reversal valve (208) is at least temporarily in the first dislocation and described second reversal valve (218) is in the second dislocation simultaneously, wherein, in described first dislocation of described first reversal valve (208), described first output (224) of described first reversal valve (208) with for cold-producing medium by mode to be connected with the described evaporimeter input (248) of described first evaporimeter (214) and described second output (226) of described first reversal valve (208) with for cold-producing medium not by mode locking, and wherein, in described second dislocation of described second reversal valve (218), described second input (230) of described second reversal valve (218) with by mode be connected with the described evaporimeter output (258) of described second evaporimeter (216), and the described first input end (228) of described second reversal valve (218) with for cold-producing medium not by mode locking.
11. refrigerating appliances (100) according to any one of the preceding claims, it is characterized in that, described refrigerating appliance (100) can run in transmission runs, in this transmission runs, described first reversal valve (208) is at least temporarily in the second dislocation and described second reversal valve (218) is in the first dislocation simultaneously, wherein, in described second dislocation of described first reversal valve (208), described second output (226) of described first reversal valve (208) with by mode be connected with the described evaporimeter input (256) of described second evaporimeter (216), and described first output (224) of described first reversal valve (208) with for cold-producing medium not by mode locking, and wherein, in described first dislocation of described second reversal valve (218), the described first input end (228) of described second reversal valve (218) with for cold-producing medium by mode be connected with the described evaporimeter output (250) of described first evaporimeter (214), and described second input (230) of described second reversal valve (218) with for cold-producing medium not by mode locking.
12. refrigerating appliances (100) according to any one of the preceding claims, it is characterized in that, described refrigerant loop (200) has liquefier (204), wherein, between described liquefier (204) and described first reversal valve (218), stop valve (206) is provided with.
13. refrigerating appliances according to claim 13 (100), it is characterized in that, in transmission runs, when compressor (202) is by driving, stop valve (206) at least temporarily forbids the flow of refrigerant in described refrigerant loop (200).
14. refrigerating appliances (100) according to any one of the preceding claims, it is characterized in that, described refrigerating appliance (100) has control device (268), and this control device is at least connected for controlling described first reversal valve (208) and described second reversal valve (218) with described first reversal valve (208) and described second reversal valve (218).
15. refrigerating appliances according to claim 14 (100), it is characterized in that, described refrigerating appliance (100) has control device (268), and described control device is at least connected with temperature sensor (272) in the mode transmitting measuring-signal.
CN201380052861.8A 2012-10-09 2013-10-02 There are two the refrigerating appliances of evaporator for tool Active CN104903663B (en)

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CN106595109A (en) * 2015-09-15 2017-04-26 惠而浦股份有限公司 Multi-evaporative cooling system
CN108700348A (en) * 2016-03-09 2018-10-23 Bsh家用电器有限公司 Refrigerating appliance with freezing cell compartment and refrigerant-cycle systems and the method for running refrigerating appliance
CN109539618A (en) * 2018-12-25 2019-03-29 长虹美菱股份有限公司 The multi-cycle refrigeration system and its control method of wind cooling refrigerator

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DE102014217673A1 (en) * 2014-09-04 2016-03-10 BSH Hausgeräte GmbH Refrigerating appliance and chiller for it
DE102019201291A1 (en) * 2019-02-01 2020-08-06 BSH Hausgeräte GmbH Refrigerator with parallel evaporators and operating procedures therefor
CN112833604B (en) * 2019-11-25 2024-01-12 博西华电器（江苏）有限公司 Refrigeration device and method for a refrigeration device
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Publication number Priority date Publication date Assignee Title
CN106595109A (en) * 2015-09-15 2017-04-26 惠而浦股份有限公司 Multi-evaporative cooling system
CN106595109B (en) * 2015-09-15 2020-06-26 恩布拉科压缩机工业和制冷解决方案有限公司 Multi-evaporative cooling system
CN108700348A (en) * 2016-03-09 2018-10-23 Bsh家用电器有限公司 Refrigerating appliance with freezing cell compartment and refrigerant-cycle systems and the method for running refrigerating appliance
CN109539618A (en) * 2018-12-25 2019-03-29 长虹美菱股份有限公司 The multi-cycle refrigeration system and its control method of wind cooling refrigerator

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CN104903663B (en) 2019-04-23
DE102012218345A1 (en) 2014-04-10

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