CN115451606B - Heat exchange type air-cooled mobile energy station device and energy-saving defrosting method thereof - Google Patents
Heat exchange type air-cooled mobile energy station device and energy-saving defrosting method thereof Download PDFInfo
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- CN115451606B CN115451606B CN202211256418.XA CN202211256418A CN115451606B CN 115451606 B CN115451606 B CN 115451606B CN 202211256418 A CN202211256418 A CN 202211256418A CN 115451606 B CN115451606 B CN 115451606B
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Classifications
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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
- F25B13/00—Compression machines, plants or systems, with reversible cycle
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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
- F25B41/00—Fluid-circulation arrangements
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
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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
- F25B47/00—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
- F25B47/02—Defrosting cycles
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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
- 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
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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
- F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
- F25D21/06—Removing frost
- F25D21/08—Removing frost by electric heating
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Abstract
The invention relates to the technical field of temporary cooling and heating of buildings, in particular to a heat exchange type air-cooled movable energy station device and an energy-saving defrosting method thereof.
Description
Technical Field
The invention relates to the technical field of temporary cooling and heating of buildings, in particular to a heat exchange type air cooling mobile energy station device and an energy-saving defrosting method thereof.
Background
The mobile energy station is particularly suitable for the initial stage and the transition stage of the building to be put into use because of the outstanding advantages of flexibility, convenience, high efficiency and the like, and is increasingly attracting attention of equipment manufacturers, energy utilization clients and the like. The mobile energy station can be classified into a water-cooled type and an air-cooled type according to different cooling classifications, and the air-cooled type mobile energy station does not need an external water source, can simultaneously meet the requirements of cooling in summer and heating in winter, and has higher flexibility and wider application range.
When the load required by the mobile energy station exceeds the capacity of a conventional single air cooling and heating pump, a plurality of air cooling heat pumps are often required to be combined, and meanwhile, as the medium for heat exchange of the air cooling heat exchanger is air, the heat exchange effect is poor due to the fact that the installation distance between the heat pump units is short, and therefore ideal refrigerating and heating effects cannot be achieved, and the air cooling type mobile energy station is compact in structure and not compatible with the energy efficiency of the units; meanwhile, because the air is low in temperature and high in humidity in winter, the heat exchanger exchanging heat with the air is extremely prone to frosting under the heating condition in winter, the defrosting is usually carried out by adopting a mode of stopping the unit and additionally adopting electric heating in engineering, and therefore the energy supply effect is affected, and the heat exchanger is one of factors of high energy consumption in winter.
Disclosure of Invention
In order to solve the problems, the invention provides a heat exchange type air-cooled mobile energy station device and an energy-saving defrosting method thereof.
The invention adopts the following technical scheme: the utility model provides a heat transfer formula forced air cooling removes energy station device, includes quick-witted case main part and many forced air cooling heat pump units, forced air cooling heat pump unit includes compressor, cross valve, heat exchanger, choke valve and plate heat exchanger, the middle part of machine case main part separates its inner chamber into upper and lower distributed's wind chamber and end chamber through setting up the baffle, be equipped with interconnect's compressor, cross valve, choke valve and plate heat exchanger in the end chamber, heat exchanger is the annular, and a plurality of heat exchangers stack in proper order and are chimney form cover and establish on the lateral wall of wind chamber, be equipped with the fence formula vent rather than the adaptation on the heat exchanger, make wind chamber and external intercommunication, the upper end of machine case main part is equipped with many fans that communicate with the wind chamber, be equipped with many electronic shutters in the wind chamber, electronic shutter is located between the adjacent heat exchanger to separate into a plurality of working chamber with the wind chamber, the lower extreme of machine case main part is equipped with inlet tube and outlet pipe through the branch road respectively with each plate heat exchanger's entrance point, the outlet pipe is through being connected with each plate heat exchanger's exit end respectively, still be equipped with in the end chamber and be used for controlling opening of motor-driven shutter and fan or fan.
Preferably, the case body is further provided with a defrosting unit, the defrosting unit comprises a first wind pressure sensor arranged at the ventilation opening of the uppermost layer heat exchanger, a second wind pressure sensor arranged at the air outlet of the fan and four electric heating plates arranged on four side walls of the bottom cavity, the electric heating plates are connected with the side walls of the bottom cavity in a vertical sliding mode, when the wind pressure difference detected by the first wind pressure sensor and the second wind pressure sensor exceeds a set value, the controller controls the electric heating plates to move upwards to cover all the heat exchangers and electrifies the electric heating plates, and when the wind pressure difference detected by the first wind pressure sensor and the second wind pressure sensor is smaller than the set value, the controller controls the electric heating plates to move downwards to reset and simultaneously cuts off the power of the electric heating plates.
Preferably, the first wind pressure sensor is disposed inside the uppermost heat exchanger vent.
Preferably, the ventilation openings on four sides of the uppermost layer heat exchanger are respectively provided with a first wind pressure sensor, and the controller controls the electric heating plate to move up and down according to wind pressure difference obtained by comparing the wind pressure average value detected by the four first wind pressure sensors with the wind pressure value detected by the second wind pressure sensor.
Preferably, the electric heating plate is located at the outer side of the heat exchanger, and a plurality of through holes are uniformly distributed on the electric heating plate.
Preferably, electric guide rails are arranged on two sides of four side walls of the case main body, the electric guide rails on one side of the case main body are arranged in opposite directions, two sides of the electric heating plate are connected with sliding blocks of the two corresponding electric guide rails, and the controller is connected with the electric guide rails.
Preferably, solar cell panels are arranged on four side walls of the lower end of the case body, each solar cell panel is electrically connected with an electric heating plate on the same side of the case body, and the solar cell panels are connected with the controller.
Preferably, one end of the solar cell panel is connected with the side wall of the case main body at the position where the partition board is located, the other end of the solar cell panel is inclined downwards and forms an included angle of 30-40 degrees with the horizontal plane, and the electric heating plate is located at the inner side of the solar cell panel.
An energy-saving defrosting method for a heat exchange type air-cooled mobile energy station device comprises the following specific steps of:
s1, setting a target pressure difference delta P of a first wind pressure sensor and a second wind pressure sensor 1 Acquiring wind pressure values of the first wind pressure sensor and the second wind pressure sensor in real time and obtaining an actual wind pressure difference delta P 2 Obtaining the absolute value delta P of the difference between the target pressure difference and the actual pressure difference 3 ；
S2, when DeltaP 3 When the pressure is more than 50Pa, the defrosting condition is triggered, the electric heating plate is electrified and moves upwards along the electric guide rail to cover all heat exchangers, and the thermal power of the electric heating plate is Q 0 ；
S3, when 25Pa is less than or equal to delta P 3 When the pressure is less than or equal to 50Pa, the thermal power Q=K multiplied by delta P of the electric heating plate 3 K is a constant;
s4, when 0Pa is less than delta P 3 When the pressure is less than 25Pa, the thermal power of the electric heating plate is delta P 3 Q when=25 Pa 1 ；
S5, when DeltaP 3 When the pressure is=0Pa, defrosting is finished, and the electric heating plate is powered off and reset.
The invention has at least one of the following beneficial effects:
in the invention, the heat exchangers of the air-cooled heat pump units are overlapped one by one in the vertical direction, no extra reserved space is needed between the units, and the structure is compact; the heat exchangers of the annular structures are overlapped to enable the air cavity to form a chimney effect, negative pressure is formed in the air cavity under the action of the fan, air around the air cavity can enter the air cavity at 360 degrees under the action of pressure difference, so that heat in the heat exchanger is taken away or absorbed by the heat exchanger, the refrigerating or heating function of the air-cooled heat pump unit is achieved, air can be introduced into four sides of the air cavity, wind resistance of each side is balanced and smaller, work done by the fan can be effectively reduced, and refrigerating or heating efficiency of the air-cooled heat pump unit is high; when the building load is reduced and the air-cooled heat pump units are required to be stopped, the corresponding air-cooled heat pump units can be stopped according to the sequence of the heat exchangers from bottom to top, and the corresponding electric shutters are closed, so that air flow only enters the air cavity along the heat exchanger corresponding to the running unit, the heat exchanger of the running unit is ensured to work stably, the energy consumption of the fan can be reduced, and the refrigerating and heating of the air-cooled heat pump unit can be more efficient. In the defrosting process in winter, the electric heating plate with solar energy as an energy source is adopted for defrosting, so that on one hand, the high-quality electric energy consumption of conventional electric heating can be reduced, meanwhile, the electric heating plate moves upwards through the electric guide rail to surround the frosted heat exchanger inside the electric heating plate, under the action of a fan, air is forced to exchange heat through the electric heating plate to raise the temperature and then remove the frost, and the hot air circulates in a small range to play roles of shortening defrosting time and improving defrosting efficiency.
Drawings
FIG. 1 is a schematic view of a preferred embodiment of the present invention;
FIG. 2 is a schematic view showing the internal structure of a preferred embodiment of the present invention;
FIG. 3 is a schematic view showing the structure of the uppermost heat exchanger in the preferred embodiment of the present invention;
FIG. 4 is an enlarged schematic view of portion A of FIG. 1;
fig. 5 is a schematic diagram of a wind cooling and heating pump assembly in a preferred embodiment of the present invention.
Reference numerals illustrate:
10 machine case main part, 11 baffles, 12 wind chambers, 13 bottom chamber, 14 fans, 15 electronic shutter, 16 controllers, 20 air-cooled heat pump unit, 21 compressors, 22 cross valve, 23 heat exchanger, 231 vent, 24 choke valve, 25 plate heat exchanger, 26 inlet tube, 27 outlet pipe, 30 defrosting unit, 31 first wind pressure sensor, 32 second wind pressure sensor, 33 electric plate, 331 through-hole, 34 electric guide rail, 35 solar cell panel.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be understood that the terms "center, longitudinal, lateral, length, width, thickness, upper, lower, front, rear, left, right, vertical, horizontal, top, bottom, inner, outer, clockwise, counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Referring to fig. 1 to 5, a preferred embodiment of the present invention is a high-efficiency compact heat exchange type air-cooled mobile energy station device, which comprises a case main body 10 and a plurality of air-cooled heat pump units 20, the air-cooled heat pump units 20 comprise a compressor 21, a four-way valve 22, a heat exchanger 23, a throttle valve 24 and a plate heat exchanger 25, the middle part of the case main body 10 divides the inner cavity of the case main body into an air cavity 12 and a bottom cavity 13 which are distributed up and down by arranging a partition 11, the bottom cavity 13 is internally provided with a compressor 21, the four-way valve 22, the throttle valve 24 and the plate heat exchanger 25 which are connected with each other, the heat exchanger 23 is in a ring shape, the plurality of heat exchangers 23 are sequentially overlapped and sleeved on the side wall of the air cavity 12 in a chimney shape, the heat exchanger 23 is provided with a fence type ventilation opening 231 which is matched with the heat exchanger, the air cavity 12 is communicated with the outside, the upper end of the case main body 10 is provided with a plurality of fans 14 which are communicated with the air cavity 10, the electric shutters 15 are arranged in the air cavity 14, the electric shutters 15 are positioned between the adjacent heat exchangers 23, the air cavity 12 are separated into a plurality of working cavities by the partition, the air cavity 10, the lower end of the case main body 10 is provided with a water inlet pipe 26 and outlet pipe 27, each of the air inlet pipe 26 and outlet pipe 26 is respectively connected with each plate heat exchanger 25 through each branch passage 27 and each air outlet port 20 respectively, the air outlet pipe is connected with each air heat exchanger 15 through each air shutter 16 respectively to the control end of the air heat exchanger 20.
In the invention, the heat exchangers 23 of the air-cooled heat pump units 20 are overlapped one by one in the vertical direction, no extra reserved space is needed between the units, and the structure is compact; the heat exchangers 23 of the annular structures are overlapped to enable the air cavity 12 to form a chimney effect, negative pressure is formed in the air cavity 12 under the action of the fan 14, air around the air cavity 12 can enter the air cavity 12 at 360 degrees under the action of pressure difference, so that heat in the heat exchanger 23 is taken away or absorbed by the heat exchanger 23 to achieve the refrigerating or heating function of the air-cooled heat pump unit 20, air can be introduced into four sides of the air cavity 12, wind resistance of each side is balanced and smaller, work of the fan 14 can be effectively reduced, and refrigerating or heating efficiency of the air-cooled heat pump unit 20 is high; when the building load is reduced and the air-cooled heat pump unit 20 is required to be stopped, the corresponding air-cooled heat pump unit 20 can be stopped according to the sequence of the heat exchangers 23 from bottom to top, and the corresponding electric louver 15 is closed, so that air flow only enters the air cavity 12 along the heat exchanger 23 corresponding to the running unit, the heat exchanger 23 of the running unit is ensured to work stably, the energy consumption of the fan 14 can be reduced, and the refrigerating and heating of the invention can be more efficient.
In the defrosting process in winter, the electric heating plate 33 with solar energy as an energy source is adopted for defrosting, so that on one hand, the high-quality electric energy consumption of conventional electric heating can be reduced, meanwhile, the electric heating plate 33 moves upwards through the electric guide rail 34, the frosted heat exchanger 23 is enclosed inside the electric heating plate 33, under the action of the fan 14, air is forced to exchange heat through the electric heating plate 33 to raise the temperature and then remove the frost, and the hot air circulates in a small range, so that the defrosting time is shortened, and the defrosting efficiency is improved.
In the present embodiment, the working principles of the air-cooled heat pump unit 20 and the electric louver 15 are well known to those skilled in the art, and thus are not described in detail herein; in this embodiment, four air cooling and heating pump units 20 are provided, three electric shutters 15 are provided, the electric shutters 15 divide the air cavity 12 into four working cavities, each heat exchanger 23 corresponds to one working cavity, when the building load is reduced, the air cooling heat pump unit 20 corresponding to the lower heat exchanger 23 is preferably closed, meanwhile, the electric shutter 15 at the lowest layer is closed, so that the working cavity at the lowest layer is closed, the negative pressure generated by the fan 14 cannot act on the air cooling heat pump unit, therefore, under the condition that the power of the fan 14 is unchanged, the air flow rate passing through the ventilation opening 231 of the upper heat exchanger 23 is higher, the heat exchange efficiency of the heat exchanger 23 is higher, or the power of the fan 14 can be reduced, the air flow rate passing through the ventilation opening 231 of the upper heat exchanger 23 is unchanged, and the heat exchange efficiency of the heat exchanger 23 is maintained; in the specific implementation, the number of the air-cooled heat pump units 20 to be stopped is determined according to the amount of the building load to be reduced.
As a preferred embodiment of the invention, it may also have the following additional technical features:
the case main body 10 is also provided with a defrosting unit 30, the defrosting unit 30 comprises a first wind pressure sensor 31 arranged at a ventilation opening 231 of the heat exchanger 23 at the uppermost layer, a second wind pressure sensor 32 arranged at an air outlet of the fan 14 and four electric heating plates 33 arranged on four side walls of the bottom cavity 13, the electric heating plates 33 are connected with the side walls of the bottom cavity 13 in a sliding mode up and down, when the wind pressure difference detected by the first wind pressure sensor 31 and the second wind pressure sensor 32 exceeds a set value, the controller 16 controls the electric heating plates 33 to move up to cover all the heat exchangers 23 and electrifies the electric heating plates 33, and when the wind pressure difference detected by the first wind pressure sensor 31 and the second wind pressure sensor 32 is lower than the set value, the controller 16 controls the electric heating plates 33 to move down to reset and simultaneously cuts off power to the electric heating plates 33; in the initial state, the data of the first wind pressure sensor 31 is slightly larger than the data of the second wind pressure sensor 32, when the ventilation opening 231 of the heat exchanger 23 frosts, the air flow speed passing through the ventilation opening 231 is faster, the wind pressure data detected by the first wind pressure sensor 31 is larger, so that the wind pressure difference between the first wind pressure sensor 31 and the second wind pressure sensor 32 is larger, when the wind pressure difference exceeds a set value, the controller 16 judges that the frosting condition of the heat exchanger 23 exists, and drives the electric heating plate 33 to move upwards to bake the heat exchanger 23 until the wind pressure difference is lower than the set value, the successful defrosting is indicated, and then the electric heating plate 33 is powered off and reset.
The first wind pressure sensor 31 is provided inside the ventilation opening 231 of the uppermost heat exchanger 23, and the position of the first wind pressure sensor 31 does not affect the up-and-down movement of the electric heating plate 33.
The first wind pressure sensors 31 are arranged at the ventilation openings 231 on four sides of the heat exchanger 23 at the uppermost layer, the controller 16 controls the electric heating plate 33 to move up and down according to the wind pressure difference obtained by comparing the wind pressure average value detected by the four first wind pressure sensors 31 with the wind pressure value detected by the second wind pressure sensor 32, when frost formation occurs at the positions of the single or a plurality of first wind pressure sensors 31 and the frost formation degree does not reach the frost melting starting condition, the corresponding first wind pressure sensors 31 detect the situation that the data is smaller or larger, if only one first wind pressure sensor 31 possibly occurs early defrosting, so that the operating frequency of the defrosting unit 30 is high, the energy saving is not facilitated, the service life of the defrosting unit 30 is easily influenced, the situation can be effectively avoided by adopting a plurality of first wind pressure sensors 31, and the situation that the defrosting unit 30 operates in advance can be effectively improved by comparing the average value detected by each first wind pressure sensor 31 with the detection value of the second wind pressure sensor 32.
The electric plate 33 is located the outside of heat exchanger 23, and evenly distributed has a plurality of through-holes 331 on the electric plate 33, and electric plate 33 is located the outside and makes things convenient for its reciprocates, can avoid electric plate 33 to plug up the vent 231 on the heat exchanger 23 through setting up through-hole 331, reduces the influence to heat exchanger 23 heat exchange efficiency.
The two sides of the four side walls of the case body 10 are provided with electric guide rails 34, the electric guide rails 34 on one side of the case body 10 are arranged in opposite directions, two sides of the electric heating plates 33 are connected with the sliding blocks of the two corresponding electric guide rails 34, the controller 16 is connected with the electric guide rails 34, and when the defrosting condition is achieved, the controller 16 controls the electric guide rails 34 to drive the electric heating plates 33 to move upwards and electrifies the electric heating plates 33; in the present embodiment, the structure and the principle of the electric rail 34 are well known to those skilled in the art, so they will not be described in detail herein; in this embodiment, eight electric rails 34 are provided in total.
Solar cell panels 35 are arranged on four side walls of the lower end of the case body 10, each solar cell panel 35 is respectively and electrically connected with an electric heating plate 33 on the same side, the solar cell panels 35 are connected with the controller 16, the solar cell panels 35 generate electricity through solar energy and supply power to the electric heating plates 33, so that the electric heating plates 33 do not need an external power supply, when defrosting conditions are met, the controller 16 controls the solar cell panels 35 to supply power to the electric heating plates 33, and when defrosting is finished, the controller 16 controls the solar cell panels 35 to cut off power to the electric heating plates 33; in this embodiment, the controller 16 is a CPU.
One end of the solar cell panel 35 is connected with the side wall of the case main body 10 where the partition plate 11 is positioned, the other end of the solar cell panel is inclined downwards and forms an included angle of 30-40 degrees with the horizontal plane, the electric heating plate 33 is positioned on the inner side of the solar cell panel 35, and the solar cell panel 35 and the ground keep a certain angle so as to better absorb sunlight and play a role in guiding flow, so that air can more smoothly enter the air cavity 12 through the ventilation opening 231; in this embodiment, one side of the solar panel 35 is actually connected to the side wall of the electric rail 34.
An energy-saving defrosting method for a heat exchange type air-cooled mobile energy station device comprises the following specific steps:
s1, setting a target pressure difference delta P of a first wind pressure sensor 31 and a second wind pressure sensor 32 1 Acquiring the wind pressure values of the first wind pressure sensor 31 and the second wind pressure sensor 32 in real time and obtaining the actual wind pressure difference delta P 2 Obtaining the absolute value delta P of the difference between the target pressure difference and the actual pressure difference 3 ；
S2, when DeltaP 3 When the pressure is more than 50Pa, the defrosting condition is triggered, the electric heating plate 33 is electrified and moves upwards along the electric guide rail 34 to cover all the heat exchangers 23, and the heat of the electric heating plate 33Power of Q 0 ；
S3, when 25Pa is less than or equal to delta P 3 At 50Pa or less, the thermal power Q=KxDeltaP of the electric heating plate 33 3 K is a constant;
s4, when 0Pa is less than delta P 3 When < 25Pa, the thermal power of the electric heating plate 33 is ΔP 3 Q when=25 Pa 1 ；
S5, when DeltaP 3 When=0pa, defrosting is completed, and the electric heating plate 33 is powered off and reset.
When DeltaP 3 When the pressure is less than 50Pa, the wind pressure value monitored by the first wind pressure sensor 31 is reduced, namely the wind force passing through the ventilation opening of the heat exchanger 23 is reduced, but the wind quantity is increased, and at the moment, the proper reduction of the thermal power of the electric heating plate 33 does not affect the defrosting efficiency, and the energy consumption of the electric heating plate 33 can be effectively reduced in the defrosting process; when 0Pa < ΔP 3 When the pressure is less than 25Pa, the power of the electric heating plate 33 is Q to ensure the normal operation of the electric heating plate 33 and maintain the defrosting efficiency 1 The energy-saving agent is kept unchanged until defrosting is finished, so that the energy-saving effect is achieved.
In the present embodiment, ΔP 1 The value of (2) is generally 700Pa to 800Pa.
The above additional technical features can be freely combined and superimposed by a person skilled in the art without conflict.
The foregoing is only a preferred embodiment of the present invention, and all technical solutions for achieving the object of the present invention by substantially the same means are within the scope of the present invention.
Claims (8)
1. The utility model provides a heat exchange type air-cooled mobile energy station device, includes quick-witted case main part (10) and many air-cooled heat pump units (20), air-cooled heat pump unit (20) include compressor (21), cross valve (22), heat exchanger (23), choke valve (24) and plate heat exchanger (25), characterized in that, the middle part of machine case main part (10) is through setting up baffle (11) with its inner chamber partition become wind chamber (12) and end chamber (13) that distributes from top to bottom, be equipped with interconnect's compressor (21), cross valve (22), choke valve (24) and plate heat exchanger (25) in end chamber (13), heat exchanger (23) are the annular, and a plurality of heat exchangers (23) stack in proper order are chimney-like cover and are established on the lateral wall of wind chamber (12), are equipped with on heat exchanger (23) rather than fence formula vent (231) of adaptation, make wind chamber (12) and external intercommunication, the upper end of machine case main part (10) is equipped with fan (14) with wind chamber (12) intercommunication, be equipped with motor (15) in shutter (12), be equipped with fan (15) in fan chamber (12) and fan chamber (15) that are equipped with interconnect, fan (15) and are located between a plurality of adjacent fan chamber (15) and the water outlet pipe (27) and are equipped with between the machine case main part (10), the water inlet pipe (26) is respectively connected with the inlet ends of the plate heat exchangers (25) through branches, the water outlet pipe (27) is respectively connected with the outlet ends of the plate heat exchangers (25) through branches, and a controller (16) for controlling the air-cooled heat pump unit (20), the electric louver (15) and the fan (14) to be opened or closed is further arranged in the bottom cavity (13);
the case is characterized in that a defrosting unit (30) is further arranged on the case body (10), the defrosting unit (30) comprises a first wind pressure sensor (31) arranged at a ventilation opening (231) of the uppermost heat exchanger (23), a second wind pressure sensor (32) arranged at an air outlet of the fan (14) and four electric heating plates (33) arranged on four side walls of the bottom cavity (13), the electric heating plates (33) are connected with the side walls of the bottom cavity (13) in a vertical sliding mode, when the wind pressure difference detected by the first wind pressure sensor (31) and the second wind pressure sensor (32) exceeds a set value, the controller (16) controls the electric heating plates (33) to move upwards to cover all the heat exchangers (23), and is electrified, and when the wind pressure difference detected by the first wind pressure sensor (31) and the second wind pressure sensor (32) is lower than the set value, the controller (16) controls the electric heating plates (33) to move downwards to reset, and meanwhile, the electric heating plates (33) are powered off.
2. A heat exchange type air-cooled mobile power station apparatus as claimed in claim 1, wherein the first wind pressure sensor (31) is provided inside the ventilation opening (231) of the uppermost heat exchanger (23).
3. The heat exchange type air-cooled mobile energy station device according to claim 2, wherein the first air pressure sensors (31) are arranged at the ventilation openings (231) of the four sides of the uppermost heat exchanger (23), and the controller (16) controls the electric heating plate (33) to move up and down according to the air pressure difference obtained by comparing the average air pressure value detected by the four first air pressure sensors (31) with the air pressure value detected by the second air pressure sensor (32).
4. The heat exchange type air-cooled mobile energy station device as claimed in claim 1, wherein the electric heating plate (33) is located at the outer side of the heat exchanger (23), and a plurality of through holes (331) are uniformly distributed on the electric heating plate (33).
5. The heat exchange type air-cooled mobile energy station device according to claim 1, wherein electric guide rails (34) are arranged on two sides of four side walls of the case body (10), the electric guide rails (34) on one side of the case body (10) are arranged in opposite directions, two sides of the electric heating plate (33) are connected with sliding blocks of the two corresponding electric guide rails (34), and the controller (16) is connected with the electric guide rails (34).
6. The heat exchange type air-cooled mobile energy station device according to claim 1, wherein solar cell panels (35) are arranged on four side walls of the lower end of the case body (10), each solar cell panel (35) is electrically connected with an electric heating plate (33) on the same side, and the solar cell panels (35) are connected with a controller (16).
7. The heat exchange type air-cooled mobile energy station device according to claim 6, wherein one end of the solar panel (35) is connected with the side wall of the case body (10) where the partition plate (11) is located, the other end of the solar panel is inclined downwards and forms an included angle of 30-40 degrees with the horizontal plane, and the electric heating plate (33) is located on the inner side of the solar panel (35).
8. An energy-saving defrosting method for a heat exchange type air-cooled mobile energy station device is characterized by comprising the following specific steps of:
s1, setting a first windTarget differential pressure DeltaP of pressure sensor (31) and second wind pressure sensor (32) 1 Acquiring wind pressure values of a first wind pressure sensor (31) and a second wind pressure sensor (32) in real time and obtaining an actual wind pressure difference delta P 2 Obtaining the absolute value delta P of the difference between the target pressure difference and the actual pressure difference 3 ；
S2, when DeltaP 3 When the pressure is more than 50Pa, the defrosting condition is triggered, the electric heating plate (33) is electrified and moves upwards along the electric guide rail (34) to cover all the heat exchangers (23), and the thermal power of the electric heating plate (33) is Q 0 ；
S3, when 25Pa is less than or equal to delta P 3 When the pressure is less than or equal to 50Pa, the thermal power Q=K×ΔP of the electric heating plate (33) 3 K is a constant;
s4, when 0Pa is less than delta P 3 When the pressure is less than 25Pa, the thermal power of the electric heating plate (33) is delta P 3 Q when=25 Pa 1 ；
S5, when DeltaP 3 When the pressure is equal to or lower than 0Pa, defrosting is finished, and the electric heating plate (33) is powered off and reset.
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006071162A (en) * | 2004-09-01 | 2006-03-16 | Matsushita Electric Ind Co Ltd | Air-conditioner |
| KR100674180B1 (en) * | 2006-06-01 | 2007-01-24 | 양승덕 | Wind pressure defrost point of time detector device of evaporation heat exchanger for air conditioner |
| CN105283712A (en) * | 2013-06-14 | 2016-01-27 | 三菱电机株式会社 | Outdoor unit for air conditioner and production method for outdoor unit for air conditioner |
| CN210921667U (en) * | 2019-10-28 | 2020-07-03 | 苏州亿凡嘉机电科技有限公司 | Vortex type air-cooled heat pump with efficient auxiliary heat source |
| CN111578390A (en) * | 2020-05-26 | 2020-08-25 | 河北工业大学 | Air-cooled PVT air conditioner external unit and operation method |
| CN212408833U (en) * | 2020-04-24 | 2021-01-26 | 北京华誉能源技术股份有限公司 | Movable air source heat pump energy station |
| CN213178927U (en) * | 2020-09-22 | 2021-05-11 | 武汉万居隆暖通设备有限公司 | Defrosting structure of air-cooled heat pump water chiller |
| CN113056146A (en) * | 2021-04-25 | 2021-06-29 | 阳光电源股份有限公司 | Air-cooled energy storage container, wind power energy storage system and multi-energy complementary energy station |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2950574B1 (en) * | 2009-09-29 | 2012-03-23 | Valeo Systemes Thermiques | THERMAL EXCHANGE BLOCK FOR MOTOR VEHICLE |
-
2022
- 2022-10-13 CN CN202211256418.XA patent/CN115451606B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006071162A (en) * | 2004-09-01 | 2006-03-16 | Matsushita Electric Ind Co Ltd | Air-conditioner |
| KR100674180B1 (en) * | 2006-06-01 | 2007-01-24 | 양승덕 | Wind pressure defrost point of time detector device of evaporation heat exchanger for air conditioner |
| CN105283712A (en) * | 2013-06-14 | 2016-01-27 | 三菱电机株式会社 | Outdoor unit for air conditioner and production method for outdoor unit for air conditioner |
| CN210921667U (en) * | 2019-10-28 | 2020-07-03 | 苏州亿凡嘉机电科技有限公司 | Vortex type air-cooled heat pump with efficient auxiliary heat source |
| CN212408833U (en) * | 2020-04-24 | 2021-01-26 | 北京华誉能源技术股份有限公司 | Movable air source heat pump energy station |
| CN111578390A (en) * | 2020-05-26 | 2020-08-25 | 河北工业大学 | Air-cooled PVT air conditioner external unit and operation method |
| CN213178927U (en) * | 2020-09-22 | 2021-05-11 | 武汉万居隆暖通设备有限公司 | Defrosting structure of air-cooled heat pump water chiller |
| CN113056146A (en) * | 2021-04-25 | 2021-06-29 | 阳光电源股份有限公司 | Air-cooled energy storage container, wind power energy storage system and multi-energy complementary energy station |
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