CN111238160A - Cold-storage heat-storage cold-heat combined fresh box lunch distribution self-lifting cabinet and control method - Google Patents
Cold-storage heat-storage cold-heat combined fresh box lunch distribution self-lifting cabinet and control method Download PDFInfo
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- CN111238160A CN111238160A CN202010153563.XA CN202010153563A CN111238160A CN 111238160 A CN111238160 A CN 111238160A CN 202010153563 A CN202010153563 A CN 202010153563A CN 111238160 A CN111238160 A CN 111238160A
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- 238000005338 heat storage Methods 0.000 title claims description 77
- 238000000034 method Methods 0.000 title claims description 7
- 238000009825 accumulation Methods 0.000 claims abstract description 63
- 238000010438 heat treatment Methods 0.000 claims abstract description 49
- 230000001105 regulatory effect Effects 0.000 claims abstract description 21
- 238000004321 preservation Methods 0.000 claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 124
- 239000007788 liquid Substances 0.000 claims description 50
- 239000003795 chemical substances by application Substances 0.000 claims description 28
- 239000003507 refrigerant Substances 0.000 claims description 28
- 238000005057 refrigeration Methods 0.000 claims description 26
- 235000012054 meals Nutrition 0.000 claims description 19
- 238000001816 cooling Methods 0.000 claims description 3
- 230000001954 sterilising effect Effects 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims 1
- 239000002994 raw material Substances 0.000 claims 1
- 230000032696 parturition Effects 0.000 abstract description 8
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 235000013305 food Nutrition 0.000 description 10
- 239000002826 coolant Substances 0.000 description 5
- 238000007599 discharging Methods 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 238000004659 sterilization and disinfection Methods 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 235000013361 beverage Nutrition 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 235000013410 fast food Nutrition 0.000 description 1
- 235000021022 fresh fruits Nutrition 0.000 description 1
- 230000036512 infertility Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000011232 storage material Substances 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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- 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
- F25D31/00—Other cooling or freezing apparatus
- F25D31/005—Combined cooling and heating devices
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- 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
- F25B29/00—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously
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- 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
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/02—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating liquids, e.g. brine
-
- 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
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
- F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
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- 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
- F25D19/00—Arrangement or mounting of refrigeration units with respect to devices or objects to be refrigerated, e.g. infrared detectors
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- 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
- F25D23/00—General constructional features
- F25D23/12—Arrangements of compartments additional to cooling compartments; Combinations of refrigerators with other equipment, e.g. stove
-
- 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
- F25D29/00—Arrangement or mounting of control or safety devices
- F25D29/001—Arrangement or mounting of control or safety devices for cryogenic fluid 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
- F25D29/00—Arrangement or mounting of control or safety devices
- F25D29/005—Mounting of control devices
-
- 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
- F25D3/00—Devices using other cold materials; Devices using cold-storage bodies
- F25D3/005—Devices using other cold materials; Devices using cold-storage bodies combined with heat exchangers
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
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- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The invention discloses a cold and heat accumulation combined cold and heat supply fresh box lunch distribution self-lifting cabinet, which comprises a heat pump unit, a first storage cabinet, a second storage cabinet, a first heat exchange system and a second heat exchange system, wherein the first heat exchange system is connected with the heat pump unit; the first heat exchange system comprises a first flow regulating valve, a first circulating pump and a first heat exchanger, and the first flow regulating valve, the first circulating pump and the first heat exchanger are sequentially connected to the heating end of the heat pump unit through pipelines; the second heat exchange system comprises a second flow regulating valve, a second circulating pump and a second heat exchanger, and the second flow regulating valve, the second circulating pump and the second heat exchanger are sequentially connected to a refrigerating end of the heat pump unit through pipelines. The device can effectively utilize the heat that heat pump set work produced, refrigerates and heats the cabinet of difference simultaneously, has improved energy utilization greatly, has reduced the equipment energy consumption, reduces the running cost to can effectually save the article of different heat preservation demands such as giving birth to bright and lunch-box.
Description
Technical Field
The invention relates to the technical field of fresh food cold chain and catering distribution industry equipment, in particular to a cold and heat storage combined supply fresh boxed meal distribution self-lifting cabinet and a control method.
Background
Along with the development of the fresh and food and beverage distribution industry, the intelligent self-service cabinet for the fresh and food cold chain logistics, take-out express delivery and fresh boxed meal appears in the visual field of people and can be developed at a high speed. The fresh cold chain/takeaway box lunch self-picking cabinet is a cabinet which is placed in a community and is specially used for placing fresh fruits and vegetables and takeaway box lunch, and a user can take the cabinet in leisure time; the fresh cold chain intelligent self-lifting cabinet has the effects of fresh keeping and refrigeration; the takeout box lunch cabinet has the characteristics of heat preservation, safety and sterility. For the situation that fresh goods are delivered to home, a courier delivers the fresh goods to the home of a consumer in many times, the consumer is not at home and cannot deliver the fresh goods to the hands of the consumer, the fresh goods are easy to lose, and the goods are not fresh when the fresh goods are delivered at night; when the takeaway box lunch is delivered and the environment temperature is low, the heat of the meal is greatly dissipated, the taste of the meal is seriously influenced, and the customer experience is greatly reduced.
In the fresh/boxed meal distribution industry, nowadays, as the fire develops, the fresh cold chain/take-out boxed meal intelligent self-service cabinet plays an important role in the fresh/boxed meal distribution industry; the fresh food cold chain intelligent self-picking cabinet has irreplaceability, becomes an effective means for solving the last hundred meters of express delivery difficulty, is approved by a plurality of people, solves the pain point of end distribution in the view of the scale of the use of the fresh food self-picking cabinet, and has no completely reflected value.
The intelligent fresh/boxed meal self-service cabinet is used as a facility for storage at a refrigeration terminal, and a logistics chain of an electric supplier of the fresh/boxed meal is completely formed. Give birth to bright cold chain commodity circulation, box lunch distribution and community storage terminal arrive user's refrigerator and dining table again, general condition courier sends commodity to express delivery department and just no longer manages, in locating to the user hand from the express delivery, this process of refrigerator and insulation can is a blank, the bright product of giving birth that does not have cold-stored processing is rotten easily, the box lunch does not have the box lunch that heat preservation was handled and consequently gives birth to the joining of bright box lunch intelligence self-service cabinet, real complete distribution logistics chain of having accomplished, the quality of giving birth to bright has been ensured. The development trend of the fresh cold chain intelligent self-lifting cabinet can be more hot and hot in terms of feedback of various industries at present.
Disclosure of Invention
The invention provides a cold and heat accumulation combined supply fresh box lunch distribution self-lifting cabinet, which solves the problem that the existing self-lifting cabinet cannot realize heat preservation and fresh keeping at the same time so as to be used for storing different foods.
The technical means adopted by the invention are as follows:
a cold and heat accumulation combined cold and heat supply fresh box lunch distribution self-lifting cabinet comprises a heat pump unit, a first storage cabinet, a second storage cabinet, a first heat exchange system and a second heat exchange system;
the first heat exchange system comprises a first flow regulating valve, a first circulating pump and a first heat exchanger, the first flow regulating valve is installed at a water outlet of a heating end of the heat pump unit, the first circulating pump is connected with a water inlet end of the first heat exchanger through a pipeline, the first heat exchanger is arranged in the first storage cabinet, and a water outlet end of the first heat exchanger is connected with a water return port of the heating end of the heat pump unit through a pipeline;
the second heat exchange system comprises a second flow regulating valve, a second circulating pump and a second heat exchanger, the second flow regulating valve is installed at a water outlet of a refrigerating end of the heat pump unit, the second circulating pump is connected with a water inlet end of the second heat exchanger through a pipeline, the second heat exchanger is arranged in the second storage cabinet, and a water outlet end of the second heat exchanger is connected with a water return port of the refrigerating end of the heat pump unit through a pipeline.
The heat pump unit is characterized by further comprising an air heat exchange system, wherein the air heat exchange system comprises a first electromagnetic valve, a second electromagnetic valve, a third electromagnetic valve, a fourth electromagnetic valve, a fifth electromagnetic valve, a sixth electromagnetic valve and an air heat exchanger, the first electromagnetic valve is installed on a pipeline between the water outlet end of the first circulating pump and the water inlet end of the first heat exchanger, the water inlet end of the air heat exchanger is connected with the water outlet end of the first circulating pump through a pipeline, the third electromagnetic valve is installed on a pipeline between the water inlet end of the air heat exchanger and the water outlet end of the first circulating pump, the water return end of the air heat exchanger is connected with the water return port of the heating end of the heat pump unit through a pipeline, and the fifth electromagnetic valve is arranged on a pipeline between the water return end of the air heat exchanger and the water return port of the heating end of the heat;
the second electromagnetic valve is installed on a pipeline between the water outlet end of the second circulating pump and the water inlet end of the second heat exchanger, the water inlet end of the air heat exchanger is connected with the water outlet end of the second circulating pump through a pipeline, the fourth electromagnetic valve is installed on a pipeline between the water inlet end of the air heat exchanger and the water outlet end of the second circulating pump, the water return end of the air heat exchanger is connected with the refrigerating end water return port of the heat pump unit through a pipeline, and the sixth electromagnetic valve is arranged on a pipeline between the water return end of the air heat exchanger and the refrigerating end water return port of the heat pump unit.
Furthermore, the first heat exchanger and the second heat exchanger are both flat plate type heat exchangers, the first heat exchanger and the second heat exchanger are both provided with a plurality of heat exchangers, the plurality of heat exchangers are installed in the first storage cabinet in a layered mode to form a bearing plate, and the plurality of heat exchangers are installed in the second storage cabinet in a layered mode to form a bearing plate.
Further, the first heat exchanger is inclined towards the inner side of the first storage cabinet, and the second heat exchanger is inclined towards the inner side of the second storage cabinet.
Furthermore, a pipeline connecting a water outlet end of the first circulating pump and a water inlet end of the first heat exchanger comprises a first main liquid supply pipe and a plurality of first branch liquid supply pipes, the water inlet end of the first heat exchanger is connected with the first main liquid supply pipe through the first branch liquid supply pipes, and seventh electromagnetic valves are respectively arranged on the plurality of first branch liquid supply pipes;
the water outlet end of the second circulating pump and the pipeline connected with the water inlet end of the second heat exchanger comprise a second main liquid supply pipe and a plurality of second branch liquid supply pipes, the water inlet end of the second heat exchanger is connected with the second main liquid supply pipe through the second branch liquid supply pipe, and the second branch liquid supply pipes are provided with eighth electromagnetic valves respectively.
Further, still include heat accumulation jar and cold storage tank, the heat accumulation jar is installed heat pump set with between the first flow control valve, the cold storage tank is installed heat pump set with between the second flow control valve.
Further, the system also comprises a heat accumulation loop and a cold accumulation loop; the heat storage loop comprises a heat storage loop pipe, a ninth electromagnetic valve and an eleventh electromagnetic valve, the ninth electromagnetic valve is arranged on a pipeline between the first circulating pump and the water inlet end of the first heat exchanger, one end of the heat storage loop pipe is connected to a pipeline between the ninth electromagnetic valve and the first circulating pump, the other end of the heat storage loop pipe is connected with a water return port of the heating end of the heat pump unit, and the eleventh electromagnetic valve is arranged on the heat storage loop pipe;
the cold accumulation loop comprises a cold accumulation loop pipe, a tenth electromagnetic valve and a twelfth electromagnetic valve, the tenth electromagnetic valve is arranged on a pipeline of the second circulating pump and the water inlet end of the second heat exchanger, one end of the cold accumulation loop pipe is connected to a pipeline between the tenth electromagnetic valve and the second circulating pump, the other end of the cold accumulation loop pipe is connected with a water return port of the refrigeration end of the heat pump unit, and the twelfth electromagnetic valve is arranged on the cold accumulation loop pipe.
Further, a heating device is arranged in the heat storage tank.
Furthermore, a degerming and sterilizing device is arranged in the first storage cabinet and the second storage cabinet.
A control method of a cold and heat accumulation combined supply fresh boxed meal delivery self-lifting cabinet comprises the steps of turning on a heat pump unit by electrifying, turning on a first electromagnetic valve, an eleventh electromagnetic valve and a twelfth electromagnetic valve, turning off a third electromagnetic valve, a ninth electromagnetic valve, a fourth electromagnetic valve and a tenth electromagnetic valve, enabling a first circulating pump and a second circulating pump to work, driving a heat-carrying agent to circulate at a heating end of the heat accumulation tank and the heat pump unit to realize heat accumulation of the heat accumulation tank by the first circulating pump, and driving a secondary refrigerant to circulate at a refrigerating end of the cold accumulation tank and the heat pump unit to realize cold accumulation of the cold accumulation tank by the second circulating pump;
when the heat-carrying agent in the heat storage tank reaches a set first temperature, the third electromagnetic valve is kept closed, the ninth electromagnetic valve is opened, the eleventh electromagnetic valve is closed, the seventh electromagnetic valve is opened, and the first circulating pump drives the heat-carrying agent to circulate at the heating ends of the heat storage tank, the first heat exchanger and the heat pump unit to realize the heat preservation of the first storage cabinet;
when the secondary refrigerant in the cold accumulation tank reaches a set second temperature, the fourth electromagnetic valve is kept closed, the tenth electromagnetic valve is opened, the twelfth electromagnetic valve is closed, the eighth electromagnetic valve is opened, and the second circulating pump drives the secondary refrigerant to circulate at the cold accumulation tank, the second heat exchanger and the refrigerating end of the heat pump unit to realize the refrigeration of the second storage cabinet;
when the heat-carrying agent in the heat storage tank exceeds a set third temperature, a third electromagnetic valve and a fifth electromagnetic valve are opened, a fourth electromagnetic valve and a sixth electromagnetic valve are closed, a fan works, a first circulating pump drives part of the heat-carrying agent to circulate at the heating ends of the heat storage tank, the first heat exchanger and the heat pump unit to realize heat preservation of the first storage cabinet, and meanwhile, the first circulating pump drives the other part of the heat-carrying agent to circulate at the heating ends of the heat storage tank, the air heat exchanger and the heat pump unit to realize heat exchange between the heat-carrying agent and the outside;
when the secondary refrigerant in the cold accumulation tank exceeds a set fourth temperature, the third electromagnetic valve and the fifth electromagnetic valve are closed, the fourth electromagnetic valve and the sixth electromagnetic valve are opened, the fan works, the second circulating pump drives part of the secondary refrigerant to circulate at the cold accumulation tank, the second heat exchanger and the refrigerating end of the heat pump unit to realize the refrigeration of the second storage cabinet, and meanwhile, the second circulating pump drives the other part of the secondary refrigerant to circulate at the cold accumulation tank, the air heat exchanger and the refrigerating end of the heat pump unit to realize the heat exchange between the secondary refrigerant and the outside;
when the external temperature is lower than the set fifth temperature, the heat pump unit does not work, the second circulating pump is not started, the third electromagnetic valve and the eleventh electromagnetic valve are closed, the ninth electromagnetic valve and the seventh electromagnetic valve are started, the heating device in the heat storage tank works, and the first circulating pump drives the heat-carrying agent to circulate in the heat storage tank and the first heat exchanger to realize the heat preservation of the first storage cabinet.
Compared with the prior art, the cold and heat accumulation combined supply fresh box lunch distribution self-lifting cabinet provided by the invention has the advantages that the first heat exchange system and the second heat exchange system are arranged, the first heat exchange system and the second heat exchange system are respectively connected with the refrigerating system and the heating system of the heat pump unit and respectively control the temperatures of different storage cabinets, so that the two storage cabinets can be controlled at two temperatures for heat preservation and freshness preservation by using one heat pump unit, foods with different temperature requirements such as fresh foods, box lunch and the like can be stored conveniently, the energy utilization rate is greatly improved, the energy consumption of equipment is reduced, the operation cost is reduced, the quality of the fresh foods and the taste of the fast food box lunch are improved, the safety of the foods is improved, and the labor intensity of personnel contact and a meal delivery worker is reduced.
Drawings
Fig. 1 is a structural diagram of a cold and heat storage combined supply fresh boxed meal distribution self-service cabinet disclosed in embodiment 1 of the present invention.
In the figure: 1. a heat pump unit, 2, a first storage cabinet, 3, a second storage cabinet, 40, a first flow rate regulating valve, 41, a first circulation pump, 42, a first heat exchanger, 43, a first main liquid supply pipe, 44, a first branch liquid supply pipe, 45, a first main liquid return pipe, 46, a first branch liquid return pipe, 47, a seventh solenoid valve, 48, a ninth solenoid valve, 49, an eleventh solenoid valve, 490, a heat storage liquid return pipe, 50, a second flow rate regulating valve, 51, a second circulation pump, 52, a second heat exchanger, 53, a second main liquid supply pipe, 54, a second branch liquid supply pipe, 55, a second main liquid return pipe, 56, a second branch liquid return pipe, 57, an eighth solenoid valve, 58, a tenth solenoid valve, 59, a twelfth solenoid valve, 590, a cold storage liquid return pipe, 60, a first solenoid valve, 61, a second solenoid valve, 62, a third solenoid valve, 63, a fourth solenoid valve, 64, a fifth solenoid valve, 65, a sixth solenoid valve, 66. the air heat exchanger, 67, the fan, 70, the cold accumulation jar, 71, the heat accumulation jar, 72, the heating device, 73, the degerming sterilizing device.
Detailed Description
Fig. 1 shows a cold and heat accumulation combined cold and heat supply fresh box lunch distribution self-service cabinet disclosed by the invention, which comprises a heat pump unit 1, a first storage cabinet 2, a second storage cabinet 3, a first heat exchange system and a second heat exchange system; the first heat exchange system comprises a first flow regulating valve 40, a first circulating pump 41 and a first heat exchanger 42, the heat pump unit can be a carbon dioxide heat pump unit or a freon heat pump unit, the first flow regulating valve 40 is installed at a water outlet end of a heating end of the heat pump unit 1, the first circulating pump 41 is connected with a water inlet end of the first heat exchanger 42 through a pipeline, the first heat exchanger 42 is arranged in the first storage cabinet 2, the water outlet end of the first heat exchanger 42 is connected with a water return end of the heating end of the heat pump unit 1 through a pipeline, a heat carrier is arranged in the first heat exchange system, preferably, the heat carrier adopts alcohol or salt media, the heat carrier circulates in the first heat exchange system under the driving of the first circulating pump 41 and exchanges heat with a condenser in the heat pump unit 1, and becomes a high-temperature medium after exchanging heat with the condenser in the heat pump unit 1, the first flow control valve 40 controls the flow of the heat carrier in the first heat exchange system, the first circulating pump 41 pumps the high-temperature medium into the first heat exchanger 42, and the first heat exchanger 42 heats the first storage cabinet to maintain the temperature in the first storage cabinet at a higher temperature, in this embodiment, the temperature of the first storage cabinet is maintained at 50 to 60 degrees centigrade, so that boxed meals and other articles needing high-temperature heat preservation are stored in the first storage cabinet.
The second heat exchange system comprises a second flow regulating valve 50, a second circulating pump 51 and a second heat exchanger 52, the second flow regulating valve 50 is installed at a water outlet of a refrigeration end of the heat pump unit 1, the second circulating pump 51 is connected with a water inlet end of the second heat exchanger 52 through a pipeline, the second heat exchanger 52 is arranged in the second storage cabinet 3, a water outlet end of the second heat exchanger 52 is connected with a water return port of the refrigeration end of the heat pump unit 1 through a pipeline, a coolant is arranged in the second heat exchange system, preferably, the coolant adopts an alcohol or salt medium, the coolant circulates in the second heat exchange system under the driving of the second circulating pump 51 and exchanges heat with an evaporator in the heat pump unit 1, the coolant becomes a low-temperature medium after exchanging heat with the evaporator in the heat pump unit 1, and the second flow regulating valve 50 controls the flow of the coolant in the second heat exchange system, second circulating pump 51 is gone into low temperature medium pump to second heat exchanger 52 in, and second heat exchanger 52 refrigerates the second cabinet for the temperature in the second cabinet maintains at lower temperature, and in this embodiment, the temperature of second cabinet maintains 3 to 7 degrees centigrade so that deposit the fresh goods that need low temperature fresh-keeping such as giving birth to bright.
Further, the first heat exchanger 42 and the second heat exchanger 52 are both flat plate heat exchangers, preferably, a flat plate micro-channel heat exchanger is used as the flat plate heat exchanger, the first heat exchanger 42 and the second heat exchanger 52 are both provided with a plurality of, in the figure, the number is 3, the plurality of first heat exchangers 42 are installed in the first storage cabinet 2 in a layered manner to form a multi-layer bearing plate, the plurality of second heat exchangers 52 are installed in the second storage cabinet 3 in a layered manner to form a bearing plate, the water outlet end of the first circulating pump 41 is connected with the first main liquid supply pipe 43, the other end of the first main liquid supply pipe 43 is connected with the plurality of first branch liquid supply pipes 44, the other end of the first branch liquid supply pipe 44 is connected with the water inlet port of the first heat exchanger 42, the water outlet port of the first heat exchanger 42 is connected with the first branch liquid pipe 46, the other end of the first branch liquid pipe 46 is connected with the first main liquid, the other end of the first main liquid return pipe 45 is connected with a water return port end of a heating end of the heat pump unit 1. The water outlet end of the second circulation pump 51 is connected with a second main liquid supply pipe 53, the other end of the second main liquid supply pipe 53 is connected with a plurality of second branch liquid supply pipes 54, the other end of the second branch liquid supply pipes 54 is connected with the water inlet port of the second heat exchanger 52, the water outlet port of the second heat exchanger 52 is connected with a second branch liquid return pipe 56, the other end of the second branch liquid return pipe 56 is connected with a second main liquid return pipe 55, and the other end of the second main liquid return pipe 55 is connected with the refrigeration end water return port end of the heat pump unit 1. The heat exchanger adopts flat heat exchanger to by the direct bearing plate structure that forms the cabinet of heat exchanger, the article that needs storage such as giving birth to bright or boxed meal are directly placed on the heat exchanger, in order to keep fresh or keep warm, directly refrigerate or keep warm to boxed meal etc. giving birth to bright through the heat exchanger, have reduced the flow of air in the cabinet, and then can reduce the evaporation of water that gives birth to bright, have reduced the dry consumption of giving birth to bright, have guaranteed the fresh of giving birth to bright. The flat plate heat exchanger can also be a flat plate micro-channel heat exchanger, a drawn aluminum profile or a water cooling plate, and the flat plate micro-channel heat exchanger, the drawn aluminum profile and the water cooling plate are all in the prior art and are not described in detail here.
Further, the first heat exchanger 42 is inclined towards the inner side of the first storage cabinet 2, the second heat exchanger 52 is inclined towards the inner side of the second storage cabinet 3, specifically, one end of the flat micro-channel heat exchanger close to the cabinet door is higher than one end of the flat micro-channel heat exchanger far away from the cabinet door, and a condensed water collecting and discharging pipeline, preferably a condensed water collecting and discharging pipeline, is arranged in the storage cabinet. The inclination angle of the heat exchanger is 2-10 degrees, so that the condensed water can conveniently flow into the condensed water collecting and discharging pipeline to discharge the condensed water.
Furthermore, the plurality of first branch liquid supply pipes 44 are respectively provided with a seventh electromagnetic valve 47, the plurality of seventh electromagnetic valves 47 can be opened or closed simultaneously or individually, and by controlling the opening or closing of one or more seventh electromagnetic valves 47, the heating of one or more first heat exchangers in the first storage cabinet can be realized, so that the power consumption of the first storage cabinet can be reduced when the number of delivered meals is small;
the plurality of second branch liquid supply pipes 54 are respectively provided with an eighth electromagnetic valve 57, the plurality of eighth electromagnetic valves 57 can be opened or closed simultaneously or independently, and the opening or closing of one or more eighth electromagnetic valves 57 is controlled, so that the refrigeration of one or more second heat exchangers in the second storage cabinet can be realized, and further, the power consumption of the second storage cabinet can be reduced when the fresh quantity is less.
Further, a heat storage tank 70 and a cold storage tank 71 are included, the heat storage tank 70 is installed between the heat pump unit 1 and the first flow regulating valve 40, the cold storage tank 71 is installed between the heat pump unit 1 and the second flow regulating valve 50, and the heat of the secondary refrigerant or the heat carrier can be stored through the cold storage tank and the heat storage tank, so as to further save energy, specifically, the time of the peak period of use of the first storage cabinet (hot cabinet) and the second storage cabinet (cold cabinet) may be different, for example, the peak period of use of the first storage cabinet (hot cabinet) is the lunch and dinner time period, and the time period of the second storage cabinet (cold cabinet) from 3 pm to 5 pm in the peak period of use is different, therefore, the heat generated by the first heat exchange system and the second heat exchange system in different time periods is different due to the difference of the time periods of the peak periods of use of the two storage cabinets, the heat can be stored through the cold accumulation tank and the heat accumulation tank, so that the heat exchange is carried out on the first storage cabinet and the second storage cabinet through the heat released by the cold accumulation tank and the heat accumulation tank in the use peak period. Furthermore, the first circulating pump and the second circulating pump are variable frequency pumps, and the flow of the heat-carrying agent and/or the secondary refrigerant can be adjusted by using the circulating pump and the flow adjusting valve according to the temperature in the heat storage tank and/or the cold storage tank so as to accurately control the temperature in the storage cabinet.
Further, the heat pump unit also comprises an air heat exchange system, the air heat exchange system comprises a first electromagnetic valve 60, a second electromagnetic valve 61, a third electromagnetic valve 62, a fourth electromagnetic valve 63, a fifth electromagnetic valve 64, a sixth electromagnetic valve 65 and an air heat exchanger 66, the first electromagnetic valve 60 is installed on a pipeline between the water outlet end of the first circulating pump 41 and the water inlet end of the first heat exchanger 42, the water inlet end of the air heat exchanger 66 is connected with the water outlet end of the first circulating pump 41 through a pipeline, the third electromagnetic valve 62 is installed on a pipeline between the water inlet end of the air heat exchanger 66 and the water outlet end of the first circulating pump 41, the water return end of the air heat exchanger 66 is connected with the water return port at the heating end of the heat pump unit 1 through a pipeline, the fifth electromagnetic valve 64 is arranged on a pipeline between the water return end of the air heat exchanger 66 and the water return port at the heating end of the heat pump unit 1, a fan 67 is arranged on the air heat exchanger 66;
the second electromagnetic valve 61 is installed on a pipeline between the water outlet end of the second circulating pump 51 and the water inlet end of the second heat exchanger 52, the water inlet end of the air heat exchanger 66 is connected with the water outlet end of the second circulating pump 51 through a pipeline, the fourth electromagnetic valve 63 is installed on a pipeline between the water inlet end of the air heat exchanger 66 and the water outlet end of the second circulating pump 51, the water return end of the air heat exchanger 66 is connected with the water return port of the refrigeration end of the heat pump unit 1 through a pipeline, and the sixth electromagnetic valve 65 is arranged on a pipeline between the water return end of the air heat exchanger 66 and the water return port of the refrigeration end of the heat pump unit 1. When the cold-storage and heat-storage combined supply fresh box lunch distribution self-lifting cabinet disclosed by the invention normally works, the first electromagnetic valve 60 and the second electromagnetic valve 61 are in an open state, the third electromagnetic valve 62, the fourth electromagnetic valve 63, the fifth electromagnetic valve 64 and the sixth electromagnetic valve 65 are in a closed state, the circulating pump pumps the secondary refrigerant and the heat-carrying agent into the heat exchanger in the storage cabinet for temperature control, when the temperatures of the second heat exchange system (the second storage cabinet) and the cold accumulation tank are lower than the set lowest temperature (when the side load of the hot cabinet is large), the third electromagnetic valve 62 and the fifth electromagnetic valve 64 are in a closed state, the fourth electromagnetic valve 63 and the sixth electromagnetic valve 65 are opened, the fan 67 on the air heat exchanger 66 works, and the secondary refrigerant is pumped into the air heat exchanger 66 under the action of the second circulating pump 51, exchanges heat with the outside air and then flows back into the heat pump unit under the action of the fan. When the temperatures of the first heat exchange system (the first storage cabinet) and the heat storage tank are higher than the set maximum temperature (the side load of the refrigerator is large), the third electromagnetic valve 62 and the fifth electromagnetic valve 64 are opened, the fourth electromagnetic valve 63 and the sixth electromagnetic valve 65 are closed, the fan 67 on the air heat exchanger 66 works, the heat carrier is pumped into the air heat exchanger 66 under the action of the first circulating pump 41 and flows back to the heat pump unit after exchanging heat with the outside air under the action of the fan, the heat exchange between the equipment and the outside air can be realized by arranging the air heat exchange system, and the reliability of the work is ensured.
Further, the system also comprises a heat accumulation loop and a cold accumulation loop; the heat storage loop comprises a heat storage loop pipe 490, a ninth electromagnetic valve 48 and an eleventh electromagnetic valve 49, the ninth electromagnetic valve 48 is arranged on the first main liquid supply pipe 43, one end of the heat storage loop pipe 490 is connected to a pipeline between the ninth electromagnetic valve 48 and the first electromagnetic valve 60, the other end of the heat storage loop pipe is connected with a water return port at the heating end of the heat pump unit 1, and the eleventh electromagnetic valve 49 is arranged on the heat storage loop pipe 490; when the self-lifting cabinet for cold and heat storage combined supply fresh box lunch distribution is powered on and opened, the third electromagnetic valve 62 and the ninth electromagnetic valve 48 are closed, the first electromagnetic valve 60 and the eleventh electromagnetic valve 49 are opened, the first circulating pump 41 can circulate the heat-carrying agent at the heat storage tank 70 and the heating end of the heat pump unit 1, and the heat-carrying agent flows into the heat storage tank 70 after heat exchange is carried out by the heat pump unit 1, so that heat storage of the heat storage tank is realized, stable heat is provided for the first storage cabinet through the heat storage tank, and the temperature of the first storage cabinet is ensured to be constant. After the heat storage of the heat storage tank is completed, the ninth electromagnetic valve 48 is opened, the eleventh electromagnetic valve 49 is closed, and the first circulating pump 41 can realize the circulation of the heat-carrying agent at the heating ends of the heat storage tank, the first heat exchanger and the heat pump unit 1 so as to realize the heat preservation of the first storage cabinet.
The cold accumulation loop comprises a cold accumulation loop pipe 590, a tenth electromagnetic valve 58 and a twelfth electromagnetic valve 59, the tenth electromagnetic valve 58 is arranged on the second main liquid supply pipeline 53, one end of the cold accumulation loop pipe 590 is connected on a pipeline between the tenth electromagnetic valve 58 and the second electromagnetic valve 61, the other end is connected with a refrigeration end water return port of the heat pump unit 1, the twelfth electromagnetic valve 59 is arranged on the cold accumulation loop pipe 590, when the cold accumulation and heat accumulation combined supply fresh box lunch distribution self-lifting cabinet disclosed by the invention is powered on and opened, the fourth electromagnetic valve 63 and the tenth electromagnetic valve 58 are closed, the second electromagnetic valve 61 and the twelfth electromagnetic valve 59 are opened, the second circulating pump 51 can circulate secondary refrigerant at the refrigeration ends of the cold accumulation tank 71 and the heat pump unit 1, and the secondary refrigerant flows into the cold accumulation tank 71 after heat exchange is carried out by the heat pump unit 1, so as to realize cold accumulation of the cold accumulation tank, so as to provide stable heat for the second storage cabinet through the cold accumulation tank, guarantee the constancy of temperature of second storage cabinet. After the cold accumulation of the cold accumulation tank is completed, the tenth electromagnetic valve 58 is opened, the twelfth electromagnetic valve 59 is closed, and the second circulating pump 51 can realize the circulation of the secondary refrigerant at the refrigeration ends of the cold accumulation tank, the second heat exchanger and the heat pump unit 1 so as to realize the refrigeration of the second storage cabinet. Meanwhile, when the first storage cabinet (the second storage cabinet) needs to be maintained or repaired, for example, the heat exchanger, the pipeline or the electromagnetic valve needs to be replaced or maintained, the ninth electromagnetic valve (the tenth electromagnetic valve) can be closed to close the loop of the first storage cabinet (the second storage cabinet), so that the first storage cabinet (the second storage cabinet) can be conveniently maintained or repaired.
Further, the heat storage tank 70 is further provided with a heating device 72, when the external temperature is low, for example, in winter in a high latitude area and in extreme low temperature weather, the evaporator and the second heat exchange system of the heat pump unit 1 can be turned off when the second storage cabinet (freezer) does not need to operate, and at this time, the heating device operates to heat the heat storage agent in the heat storage tank, and heats the first storage cabinet (hot cabinet) under the action of the first circulation pump, so that the normal operation of the first storage cabinet is ensured.
Further, a sterilization and disinfection device 73 is further arranged in the first storage cabinet 2 and the second storage cabinet 3, and the sterilization and disinfection device can be an ultraviolet lamp or an ozone generator so as to sterilize and disinfect the storage cabinets and ensure the sanitation and safety of the storage cabinets.
A control method of a self-lifting cabinet for distribution and delivery of cold-heat storage combined supply fresh boxed meal comprises,
should carry the cabinet on-stream time heat accumulation jar and cold-storage jar and carry out heat accumulation and cold-storage: the critical heat pump unit 1 is powered on and opened, the first electromagnetic valve 60, the first electromagnetic valve 61, the eleventh electromagnetic valve 49 and the twelfth electromagnetic valve 59 are opened, the third electromagnetic valve 62, the ninth electromagnetic valve 48, the fourth electromagnetic valve 63 and the tenth electromagnetic valve 58 are closed, the first circulating pump 41 and the second circulating pump 51 work, the first circulating pump 41 drives a heat-carrying agent to circulate in the heat storage tank 70 and the heating end of the heat pump unit 1 to realize heat storage of the heat storage tank, and the second circulating pump 51 drives a secondary refrigerant to circulate in the cold storage tank 71 and the refrigerating end of the heat pump unit 1 to realize cold storage of the cold storage tank;
should carry the cabinet from normal work: when the heat-carrying agent in the heat storage tank 70 reaches the set first temperature, in this embodiment, the first temperature is set to 60 ℃, the first temperature value may also be set to other values according to actual needs, the third electromagnetic valve 62 is kept closed, the ninth electromagnetic valve 48 is opened, the eleventh electromagnetic valve 49 is closed, the seventh electromagnetic valve 47 is opened, and the first circulation pump 41 drives the heat-carrying agent to circulate in the heat storage tank 70, the first heat exchanger 42 and the heating end of the heat pump unit 1 to realize heat preservation of the first storage cabinet 2;
when the secondary refrigerant in the cold accumulation tank 71 reaches the set second temperature, in this embodiment, the second temperature is set to 0 ℃, the second temperature value may also be set to other values according to actual needs, the fourth electromagnetic valve 63 is kept closed, the tenth electromagnetic valve 58 is opened, the twelfth electromagnetic valve 59 is closed, the eighth electromagnetic valve 57 is opened, and the second circulation pump 51 drives the secondary refrigerant to circulate at the cold accumulation tank 71, the second heat exchanger 52 and the refrigeration end of the heat pump unit 1 to realize the refrigeration of the second storage cabinet 3;
when the load of the second storage cabinet (refrigeration cabinet) is large: when the heat-carrying agent in the heat storage tank 70 exceeds a set third temperature, in this embodiment, the third temperature is set to 65 ℃, the third temperature value can also be set to other values according to actual needs, the third electromagnetic valve 62 and the fifth electromagnetic valve 64 are opened, the fourth electromagnetic valve 63 and the sixth electromagnetic valve 65 are closed, the fan 67 works, the first circulation pump 41 drives part of the heat-carrying agent to circulate at the heat storage tank 70, the first heat exchanger 42 and the heating end of the heat pump unit 1 to realize heat preservation of the first storage cabinet 2, and simultaneously, the first circulation pump 41 drives the other part of the heat-carrying agent to circulate at the heat storage tank 70, the air heat exchanger 66 and the heating end of the heat pump unit 1 to realize heat exchange between the heat-carrying agent and the outside;
when the first storage cabinet (heating cabinet) is under a large load: when the secondary refrigerant in the cold storage tank 71 exceeds a set fourth temperature, in this embodiment, the fourth temperature is set to-5 ℃, the fourth temperature value can also be set to other values according to actual needs, the third electromagnetic valve 62 and the fifth electromagnetic valve 64 are closed, the fourth electromagnetic valve 63 and the sixth electromagnetic valve 65 are opened, the fan 67 works, the second circulating pump 51 drives part of the secondary refrigerant to circulate in the cold storage tank 71, the second heat exchanger 52 and the refrigeration end of the heat pump unit 1 to realize refrigeration of the second storage cabinet 2, and meanwhile, the second circulating pump 51 drives the other part of the secondary refrigerant to circulate in the cold storage tank 71, the air heat exchanger 66 and the refrigeration end of the heat pump unit 1 to realize heat exchange between the secondary refrigerant and the outside;
in winter and in extreme low-temperature weather in high latitude areas: when the external temperature is lower than the set fifth temperature, in this embodiment, the fifth temperature is set to 0 ℃, the fifth temperature value may also be set to other values according to actual needs, the heat pump unit 1 does not operate, the second circulation pump 51 is not turned on, the third electromagnetic valve 62 and the eleventh electromagnetic valve 49 are closed, the ninth electromagnetic valve 48 and the seventh electromagnetic valve 47 are opened, the heating device 72 in the heat storage tank 70 operates, and the first circulation pump 41 drives the heat carrier to circulate in the heat storage tank 70 and the first heat exchanger 42 to realize heat preservation of the first storage cabinet 2.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (10)
1. The utility model provides a cold-storage heat accumulation cold and hot allies oneself with supplies give birth to bright box lunch delivery and carry cabinet certainly which characterized in that: the heat pump unit comprises a heat pump unit (1), a first storage cabinet (2), a second storage cabinet (3), a first heat exchange system and a second heat exchange system;
the first heat exchange system comprises a first flow regulating valve (40), a first circulating pump (41) and a first heat exchanger (42), the first flow regulating valve (40) is installed at a water outlet of a heating end of the heat pump unit (1), a water outlet end of the first circulating pump (41) is connected with a water inlet end of the first heat exchanger (42) through a pipeline, the first heat exchanger (42) is arranged in the first storage cabinet (2), and a water outlet end of the first heat exchanger (42) is connected with a water return port of the heating end of the heat pump unit (1) through a pipeline;
the second heat exchange system comprises a second flow regulating valve (50), a second circulating pump (51) and a second heat exchanger (52), the second flow regulating valve (50) is installed at a water outlet of a refrigerating end of the heat pump unit (1), a water outlet end of the second circulating pump (51) is connected with a water inlet end of the second heat exchanger (52) through a pipeline, the second heat exchanger (52) is arranged in the second storage cabinet (3), and a water outlet end of the second heat exchanger (52) is connected with a water return port of the refrigerating end of the heat pump unit (1) through a pipeline.
2. The cold-storage and heat-storage combined cooling-heating fresh box lunch distribution self-service cabinet as claimed in claim 1, characterized in that: the heat pump unit further comprises an air heat exchange system, the air heat exchange system comprises a first electromagnetic valve (60), a second electromagnetic valve (61), a third electromagnetic valve (62), a fourth electromagnetic valve (63), a fifth electromagnetic valve (64), a sixth electromagnetic valve (65) and an air heat exchanger (66), the first electromagnetic valve (60) is installed on a pipeline of a water outlet end of the first circulating pump (41) and a pipeline of a water inlet end of the first heat exchanger (42), a water inlet end of the air heat exchanger (66) is connected with a water outlet end of the first circulating pump (41) through a pipeline, the third electromagnetic valve (62) is installed on a pipeline of a water inlet end of the air heat exchanger (66) and a water outlet end of the first circulating pump (41), a water return end of the air heat exchanger (66) is connected with a water return port of a heating end of the heat pump unit (1) through a pipeline, and the fifth electromagnetic valve (64) is arranged at a water return end of the air heat exchanger (66) and the heat pump unit (1 On the pipeline between the heating end water return ports;
the second electromagnetic valve (61) is installed on a pipeline of a water outlet end of the second circulating pump (51) and a water inlet end of the second heat exchanger (52), a water inlet end of the air heat exchanger (66) is connected with a water outlet end of the second circulating pump (51) through a pipeline, the fourth electromagnetic valve (63) is installed on a pipeline of a water inlet end of the air heat exchanger (66) and a water outlet end of the second circulating pump (51), a water return end of the air heat exchanger (66) is connected with a refrigeration end water return port of the heat pump unit (1) through a pipeline, and the sixth electromagnetic valve (65) is arranged on a pipeline between a water return end of the air heat exchanger (66) and the refrigeration end water return port of the heat pump unit (1).
3. The cold-storage and heat-storage combined cold and heat-supply fresh boxed meal distribution self-service cabinet as claimed in claim 1 or 2, characterized in that: the first heat exchanger (42) and the second heat exchanger (52) are both flat plate type heat exchangers, the first heat exchanger (42) and the second heat exchanger (52) are respectively provided with a plurality of heat exchangers, the plurality of first heat exchangers (42) are installed in the first storage cabinet (2) in a layered mode to form a bearing plate, and the plurality of second heat exchangers (52) are installed in the second storage cabinet (3) in a layered mode to form a bearing plate.
4. The cold-storage and heat-storage combined cooling-heating fresh box lunch distribution self-service cabinet as claimed in claim 3, characterized in that: the first heat exchanger (42) is inclined to the inside of the first storage cabinet (2), and the second heat exchanger (52) is inclined to the inside of the second storage cabinet (3).
5. The cold-storage and heat-storage combined cooling-heating fresh box lunch distribution self-service cabinet as claimed in claim 3, characterized in that: a pipeline connecting a water outlet end of the first circulating pump (41) and a water inlet end of the first heat exchanger (42) comprises a first main liquid supply pipe (43) and a plurality of first branch liquid supply pipes (44), a water inlet end of the first heat exchanger (42) is connected with the first main liquid supply pipe (43) through the first branch liquid supply pipes (44), and seventh electromagnetic valves (47) are respectively arranged on the plurality of first branch liquid supply pipes (44);
the pipeline that the water outlet end of the second circulating pump (51) is connected with the water inlet end of the second heat exchanger (52) comprises a second main liquid supply pipe (53) and a plurality of second branch liquid supply pipes (54), the water inlet end of the second heat exchanger (52) is connected with the second main liquid supply pipe (53) through the second branch liquid supply pipes (54), and eighth electromagnetic valves (57) are respectively arranged on the plurality of second branch liquid supply pipes (54).
6. The cold-storage and heat-storage combined cooling-heating fresh box lunch distribution self-service cabinet as claimed in claim 1, characterized in that: still include heat accumulation jar (70) and cold-storage jar (71), heat accumulation jar (70) are installed heat pump set (1) with between first flow control valve (40), cold-storage jar (71) are installed heat pump set (1) with between second flow control valve (50).
7. The cold-storage and heat-storage combined cooling-heating fresh box lunch distribution self-service cabinet as claimed in claim 6, characterized in that: the system also comprises a heat accumulation loop and a cold accumulation loop;
the heat storage loop comprises a heat storage loop pipe (490), a ninth electromagnetic valve (48) and an eleventh electromagnetic valve (49), the ninth electromagnetic valve (48) is arranged on a pipeline between the first circulating pump (41) and a water inlet end of the first heat exchanger (42), one end of the heat storage loop pipe (490) is connected to a pipeline between the ninth electromagnetic valve (48) and the first circulating pump (41), the other end of the heat storage loop pipe is communicated with a water return port of a heating end of the heat pump unit (1), and the eleventh electromagnetic valve (49) is arranged on the heat storage loop pipe (490);
the cold accumulation loop comprises a cold accumulation loop pipe (590), a tenth electromagnetic valve (58) and a twelfth electromagnetic valve (59), the tenth electromagnetic valve (58) is arranged on a pipeline of a water inlet end of the second circulating pump (51) and the second heat exchanger (52), one end of the cold accumulation loop pipe (590) is connected to a pipeline between the tenth electromagnetic valve (58) and the second circulating pump (51), the other end of the cold accumulation loop pipe is communicated with a water return port of a refrigeration end of the heat pump unit (1), and the twelfth electromagnetic valve (59) is arranged on the cold accumulation loop pipe (590).
8. The cold-storage and heat-storage combined cooling-heating fresh box lunch distribution self-service cabinet as claimed in claim 6, characterized in that: and a heating device (72) is also arranged in the heat storage tank (70).
9. The cold-storage and heat-storage combined cooling-heating fresh box lunch distribution self-service cabinet as claimed in claim 1, characterized in that: and a degerming and sterilizing device (73) is also arranged in the first storage cabinet (2) and the second storage cabinet (3).
10. A cold-storage and heat-storage combined cold and heat-supply fresh boxed meal distribution self-lifting cabinet control method is characterized by comprising the following steps: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
the heat pump unit (1) is powered on, the first electromagnetic valve (60), the first electromagnetic valve (61), the eleventh electromagnetic valve (49) and the twelfth electromagnetic valve (59) are opened, the third electromagnetic valve (62), the ninth electromagnetic valve (48), the fourth electromagnetic valve (63) and the tenth electromagnetic valve (58) are closed, the first circulating pump (41) and the second circulating pump (51) work, the first circulating pump (41) drives the heat-carrying agent to circulate at the heat storage tank (70) and the heating end of the heat pump unit (1) to realize heat storage of the heat storage tank, and the second circulating pump (51) drives the secondary refrigerant to circulate at the cold storage tank (71) and the cooling end of the heat pump unit (1) to realize cold storage of the cold storage tank;
when the heat-carrying agent in the heat storage tank (70) reaches a set first temperature, the third electromagnetic valve (62) is kept closed, the ninth electromagnetic valve (48) is opened, the eleventh electromagnetic valve (49) is closed, the seventh electromagnetic valve (47) is opened, and the first circulating pump (41) drives the heat-carrying agent to circulate at the heat storage tank (70), the first heat exchanger (42) and the heating end of the heat pump unit (1) to realize the heat preservation of the first storage cabinet (2);
when the secondary refrigerant in the cold storage tank (71) reaches a set second temperature, the fourth electromagnetic valve (63) is kept closed, the tenth electromagnetic valve (58) is opened, the twelfth electromagnetic valve (59) is closed, the eighth electromagnetic valve (57) is opened, and the second circulating pump (51) drives the secondary refrigerant to circulate at the cold storage tank (71), the second heat exchanger (52) and the refrigerating end of the heat pump unit (1) to realize the refrigeration of the second storage cabinet (3);
when the heat-carrying agent in the heat storage tank (70) exceeds a set third temperature, a third electromagnetic valve (62) and a fifth electromagnetic valve (64) are opened, a fourth electromagnetic valve (63) and a sixth electromagnetic valve (65) are closed, a fan (67) works, a first circulating pump (41) drives part of the heat-carrying agent to circulate at the heating ends of the heat storage tank (70), a first heat exchanger (42) and a heat pump unit (1) to realize heat preservation of the first storage cabinet (2), and meanwhile, the first circulating pump (41) drives the other part of the heat-carrying agent to circulate at the heating ends of the heat storage tank (70), an air heat exchanger (66) and the heat pump unit (1) to realize heat exchange between the heat-carrying agent and the outside;
when the secondary refrigerant in the cold storage tank (71) exceeds a set fourth temperature, the third electromagnetic valve (62) and the fifth electromagnetic valve (64) are closed, the fourth electromagnetic valve (63) and the sixth electromagnetic valve (65) are opened, the fan (67) works, the second circulating pump (51) drives part of the secondary refrigerant to circulate at the cold storage tank (71), the second heat exchanger (52) and the refrigerating end of the heat pump unit (1) to realize the refrigeration of the second storage cabinet (2), and meanwhile, the second circulating pump (51) drives the other part of the secondary refrigerant to circulate at the cold storage tank (71), the air heat exchanger (66) and the refrigerating end of the heat pump unit (1) to realize the heat exchange between the secondary refrigerant and the outside;
when the external temperature is lower than a set fifth temperature, the heat pump unit (1) does not work, the second circulating pump (51) is not started, the third electromagnetic valve (62) and the eleventh electromagnetic valve (49) are closed, the ninth electromagnetic valve (48) and the seventh electromagnetic valve (47) are started, the heating device (72) in the heat storage tank (70) works, and the first circulating pump (41) drives the heat-carrying agent to circulate in the heat storage tank (70) and the first heat exchanger (42) to realize the heat preservation of the first storage cabinet (2).
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| CN117760124A (en) * | 2024-02-22 | 2024-03-26 | 天津欧适能新能源科技有限公司 | Air source heat pump with energy storage function and capable of simultaneously supplying cold and heat |
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