CN104879964A - Heat pump directly-heating type heating system with heat return device - Google Patents
Heat pump directly-heating type heating system with heat return device Download PDFInfo
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- CN104879964A CN104879964A CN201510264587.1A CN201510264587A CN104879964A CN 104879964 A CN104879964 A CN 104879964A CN 201510264587 A CN201510264587 A CN 201510264587A CN 104879964 A CN104879964 A CN 104879964A
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- heating radiator
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- heating
- regenerator
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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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D3/00—Hot-water central heating systems
- F24D3/18—Hot-water central heating systems using heat pumps
-
- 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
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D2200/00—Heat sources or energy sources
- F24D2200/12—Heat pump
- F24D2200/123—Compression type heat pumps
-
- 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
- F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
- F25B2313/027—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means
- F25B2313/02741—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means using one four-way valve
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Sorption Type Refrigeration Machines (AREA)
Abstract
The invention relates to a heat pump directly-heating type heating system with a heat return device. The system comprises a compressor, an outdoor heat exchanger, a throttling part, a first heating heat dissipater, a four-way valve and the heat return device. The high-pressure refrigerant input end of the heat return device is connected with the output end of the first heating heat dissipater. The high-pressure refrigerant output end of the heat return device is connected with the input end of the throttling part. The low-pressure gas input end of the heat return device is connected with the output end of the outdoor heat exchanger. The low-pressure gas output end of the heat return device is connected with a second port of the four-way valve. As the heat return device is additionally arranged, the temperature falls before refrigerants are throttled, which is beneficial for improving a heat pump system energy efficiency ratio; meanwhile, as the gas absorbing temperature of the compressor is increased to be beneficial for increasing the exhaust temperature of the compressor, the temperature of the refrigerants entering the heating heat dissipater can be higher, and more heat is dissipated into a room.
Description
Technical field
The present invention relates to field of heating, particularly a kind of heat pump directly-heated type heating system with regenerator.
Background technology
Existing heating system as described in Figure 1, comprise compressor 01, outdoor heat exchanger 02, throttle part 03, first heating radiator 04 and cross valve 05, the exhaust outlet of described compressor 01 is connected with the first port of described cross valve 05, and the air inlet of described compressor 01 is connected with the 3rd port of described cross valve 05; 4th port of described cross valve 05 is connected with the input of described first heating radiator 04, the output of described first heating radiator 04 is connected with the input of described throttle part 03, and the output of described throttle part 03 is connected with the second port of described cross valve 05 by described outdoor heat exchanger 02; Its feature heating circulation directly the condenser that heating radiator is used as heat pump is used, and what circulate inside heating radiator is HTHP carbon dioxide from compressor or freon refrigerant.The shortcoming of this type systematic be heating radiator by free convection and radiation mode heat radiation, heat dissipation capacity is limited, makes refrigerant gas can not be sufficiently cooled in heating radiator, and before causing cold-producing medium throttling, temperature is too high, and system energy efficiency is not high.
Summary of the invention
The invention provides a kind of heat pump directly-heated type heating system with regenerator, too high with temperature before solving the throttling of above-mentioned heating system cold-producing medium, the technical problem that system energy efficiency is not high.
In order to solve the problems of the technologies described above, the invention provides a kind of heat pump directly-heated type heating system with regenerator, comprise compressor, outdoor heat exchanger, throttle part, the first heating radiator and cross valve, the exhaust outlet of described compressor is connected with the first port of described cross valve, and the air inlet of described compressor is connected with the 3rd port of described cross valve; 4th port of described cross valve is connected with the input of described first heating radiator, the output of described first heating radiator is connected with the input of described throttle part, and the output of described throttle part is connected with the second port of described cross valve by described outdoor heat exchanger; Also comprise regenerator, the high-pressure refrigerant input of described regenerator is connected with the output of described first heating radiator, the high-pressure refrigerant output of described regenerator is connected with the input of described throttle part, the low-pressure gas input of described regenerator is connected with the output of described outdoor heat exchanger, and the low-pressure gas output of described regenerator is connected with the second port of described cross valve.
The invention has the beneficial effects as follows: the high-temperature high-pressure refrigerant from compressor enters regenerator after radiating and cooling in the first heating radiator, with the cold-producing medium generation heat exchange from the outdoor unit heat exchanger as evaporimeter, because the latter's temperature is lower, the former is further cooled, and after through throttle part throttling laggard enter outdoor unit heat exchanger evaporation endothermic, return regenerator heat absorption get back to compressor; The present invention is by increasing regenerator, and before making cold-producing medium throttling, temperature reduces, and is conducive to improving heat pump Energy Efficiency Ratio, simultaneously, the raising of compressor air suction temperature is conducive to promoting compressor exhaust temperature, and make the refrigerant temperature entering heating radiator higher, more heat spills into room.
Further, described heating system also comprises first flow control valve, and the input of described first flow control valve is connected with the 4th end of described cross valve, and the output of described first flow control valve connects and is connected with the input of described first heating radiator.
The beneficial effect of above-mentioned further scheme is adopted to be: the flow being regulated cold-producing medium by first flow control valve, with the demand of satisfied different indoor temperature.
Further, described heating system also comprises second control valve, the input of described second control valve is connected with the output of described first heating radiator, and the output of described second control valve connects and is connected with the high-pressure refrigerant input of described regenerator.
Adopt the beneficial effect of above-mentioned further scheme to be: by synchronization action and the control of first, second flow control valve, the temperature of the first heat collector radiator is controlled more accurate.
Further, described heating system also comprises the second heating radiator, and the input of described second heating radiator is connected with the output of described first flow control valve, and the output of described second heating radiator is connected with the input of described first heating radiator.
The beneficial effect of above-mentioned further scheme is adopted to be: two or more heating radiator is cascaded, and the temperature of the first heating radiator higher than the second heating radiator, can meet the requirement of different indoor temperature.
Further, described system also comprises the second heating radiator, the input of described second heating radiator is connected with the 4th port of described cross valve by the 3rd flow control valve, and the output of described second heating radiator is connected with the high-pressure refrigerant input of described regenerator.
Adopt the beneficial effect of above-mentioned further scheme to be: two or more heating radiator is connected in parallel, and the temperature of the first heating radiator is substantially identical with the temperature of the second heating radiator, guarantee that different indoor temperature keeps phase same level.
Further, described heating system also comprises the 4th flow control valve, and described 4th flow control valve is connected with the output of described second heating radiator and the high-pressure refrigerant input of described regenerator respectively.
Adopt the beneficial effect of above-mentioned further scheme to be: by synchronization action and the control of the 3rd, the 4th flow control valve, the temperature of the second heat collector radiator is controlled more accurate.
Further, described system also comprises the 3rd heating radiator, and the input of described 3rd heating radiator is connected with the output of described 3rd flow control valve, and the output of described 3rd heating radiator is connected with the input of described second heating radiator.
The beneficial effect of above-mentioned further scheme is adopted to be: by the parallel connection of heating heat exchanger and the combination of series connection, to realize the heating combined effect of various temperature, different demand.
Further, input and the output of described first heating radiator, described second heating radiator and described 3rd heating radiator lay respectively on diagonal position, and input is upper, output under.
The beneficial effect of above-mentioned further scheme is adopted to be: heating radiator entrance and exit diagonal angle arranges the thermal conversion efficiency improving heating radiator.
Further, the cold-producing medium in described compressor is carbon dioxide or freon.
The beneficial effect of above-mentioned further scheme is adopted to be: freon is a kind of conventional cold-producing medium, applies comparatively extensive; Carbon dioxide is a kind of cold-producing medium of environmental protection.
Accompanying drawing explanation
Fig. 1 is the structure chart of prior art heating system,
Fig. 2 is heat pump directly-heated type heating system embodiment one structural representation of band regenerator of the present invention,
Fig. 3 is heat pump directly-heated type heating system embodiment two structural representation of band regenerator of the present invention,
Fig. 4 is heat pump directly-heated type heating system embodiment three structural representation of band regenerator of the present invention,
Fig. 5 is heat pump directly-heated type heating system embodiment four structural representation of band regenerator of the present invention,
Fig. 6 is heat pump directly-heated type heating system embodiment five structural representation of band regenerator of the present invention,
Fig. 7 is heat pump directly-heated type heating system embodiment six structural representation of band regenerator of the present invention,
Fig. 8 is heating radiator embodiment one structural representation in the heat pump directly-heated type heating system of band regenerator of the present invention.
In accompanying drawing, the list of parts representated by each label is as follows:
01, compressor, 02, outdoor heat exchanger, 03, throttle part, the 04, first heating radiator, 05, cross valve, 06, regenerator, 07, first flow control valve, 08, second control valve, 09, the second heating radiator, 10, the 3rd flow control valve, the 11, the 4th flow control valve, the 12, the 3rd heating radiator
Detailed description of the invention
Below in conjunction with drawings and embodiments, the present invention is further illustrated.
Heat pump directly-heated type heating system embodiment one structural representation of band regenerator of the present invention is see Fig. 2, comprise compressor 01, outdoor heat exchanger 02, throttle part 03, first heating radiator 04 and cross valve 05, the exhaust outlet of compressor 01 is connected with the first port of cross valve 05, and the air inlet of compressor 01 is connected with the 3rd port of cross valve 05; 4th port of cross valve 05 is connected with the input of the first heating radiator 04, and the output of the first heating radiator 04 is connected with the input of throttle part 03, and the output of throttle part 03 is connected with the second port of cross valve 05 by outdoor heat exchanger 02; Also comprise regenerator 06, the high-pressure refrigerant input of regenerator 06 is connected with the output of the first heating radiator 04, the high-pressure refrigerant output of regenerator 06 is connected with the input of throttle part 03, the low-pressure gas input of regenerator 06 is connected with the output of outdoor heat exchanger 02, and the low-pressure gas output of regenerator 06 is connected with the second port of cross valve 05.
The flow direction of high-temperature high-pressure refrigerant steam as shown by the arrows in Figure 2, high-temperature high-pressure refrigerant from compressor passes through the first, the 4th port of cross valve, to enter in the first heating radiator after radiating and cooling, regenerator is entered from high-pressure refrigerant input, with the cold-producing medium generation heat exchange from the outdoor heat exchanger as evaporimeter, because the latter's temperature is lower, the former is further cooled, and after through throttle part throttling laggard enter outdoor unit heat exchanger evaporation endothermic, return regenerator heat absorption get back to compressor; The present invention is by increasing regenerator, and before making cold-producing medium throttling, temperature reduces, and is conducive to improving heat pump Energy Efficiency Ratio, simultaneously, the raising of compressor air suction temperature is conducive to promoting compressor exhaust temperature, and make the refrigerant temperature entering heating radiator higher, more heat spills into room.
Heat pump directly-heated type heating system embodiment two structural representation of band regenerator of the present invention is see Fig. 3, compared with embodiment one, its difference is, heating system also comprises first flow control valve 07, the input of first flow control valve 07 is connected with the 4th end of cross valve 05, and the output of first flow control valve 07 connects and is connected with the input of the first heating radiator 04.。
The flow of cold-producing medium is regulated, with the demand of satisfied different indoor temperature by first flow control valve; If heating radiator temperature is too high, turn the refrigerant flow of first flow control valve down to reduce the temperature of heating radiator; If heating radiator temperature is too low, tune up the refrigerant flow of first flow control valve to raise the temperature of heating radiator.
Heat pump directly-heated type heating system embodiment three structural representation of band regenerator of the present invention is see Fig. 4, compared with embodiment two, its difference is, heating system also comprises second control valve 08, the input of second control valve 08 is connected with the output of the first heating radiator 04, and the output of second control valve 08 connects and is connected with the high-pressure refrigerant input of regenerator 06.
By synchronization action and the control of first, second flow control valve, the temperature of the first heat collector radiator is controlled more accurate.
Heat pump directly-heated type heating system embodiment four structural representation of band regenerator of the present invention is see Fig. 5, compared with embodiment three, its difference is, heating system also comprises the second heating radiator 09, the input of the second heating radiator 09 is connected with the output of first flow control valve 07, and the output of the second heating radiator 09 is connected with the input of the first heating radiator 04.
Two heating radiators are cascaded, and the temperature of the first heating radiator higher than the second heating radiator, can meet the requirement of the different heating temperatures in different chamber, in actual applications, can to connect according to actual needs plural multiple heating radiator, the flow direction of high-temperature high-pressure refrigerant steam as shown by the arrows in Figure 4, cold-producing medium flows out from the 4th port of cross valve, enter the input of the first heating radiator, then the first heating radiator is flowed through, flow out from the output of the first heating radiator, enter the input of the second heating radiator, flow through the second heating radiator, flow out from the output of the second heating radiator, enter regenerator, with the cold-producing medium generation heat exchange from the outdoor heat exchanger as evaporimeter, because the latter's temperature is lower, the former is further cooled, and after through throttle part throttling laggard enter outdoor unit heat exchanger evaporation endothermic, return regenerator heat absorption and get back to compressor.
Heat pump directly-heated type heating system embodiment five structural representation of band regenerator of the present invention is see Fig. 6, compared with embodiment three, its difference is, extraction system also comprises the second heating radiator 09, the input of the second heating radiator 09 is connected with the 4th port of cross valve 04 by the 3rd flow control valve 10, and the output of the second heating radiator 09 is connected with the high-pressure refrigerant input of regenerator 06; Heating system also comprises the 4th flow control valve the 11, four flow control valve 11 and is connected with the output of the second heating radiator 09 and the high-pressure refrigerant input of regenerator 06 respectively.
Two or more heating radiator is connected in parallel, and the temperature of the first heating radiator is substantially identical with the temperature of the second heating radiator, guarantees that different indoor temperature keeps phase same level.
Heat pump directly-heated type heating system embodiment six structural representation of band regenerator of the present invention is see Fig. 7, compared with embodiment five, its difference is, system also comprises the 3rd heating radiator 12, the input of the 3rd heating radiator 12 is connected with the output of the 3rd flow control valve 17, and the output of the 3rd heating radiator 12 is connected with the input of the second heating radiator 09.
By the parallel connection of heating heat exchanger and the combination of series connection, realize the heating combined effect of various temperature, different demand; The flow direction of high-temperature high-pressure refrigerant steam as shown by the arrows in Figure 7, cold-producing medium flows out from the 4th port of cross valve, wherein a road cold-producing medium enters the input of the first heating radiator by first flow control valve, then the first heating radiator is flowed through, flow out from the output of the first heating radiator, enter regenerator through second control valve; Another road cold-producing medium enters the input of the 3rd heating radiator by the 3rd flow control valve, then flows through the second heating radiator, then flows out from the output of the second heating radiator, enters regenerator through the 4th flow control valve; With the cold-producing medium generation heat exchange from the outdoor heat exchanger as evaporimeter, because the latter's temperature is lower, the former is further cooled, and after through throttle part throttling laggard enter outdoor unit heat exchanger evaporation endothermic, return regenerator heat absorption get back to compressor.
In the heat pump directly-heated type heating system of band regenerator of the present invention, heating radiator embodiment one structural representation is see Fig. 8, input and the output of the first heating radiator 04, second heating radiator 09 and the 3rd heating radiator 12 lay respectively on diagonal position, and input is upper, output under.Heating radiator entrance and exit diagonal angle arranges the thermal conversion efficiency improving heating radiator.
In describing the invention, it is to be appreciated that term " first ", " second ", " the 3rd ", " the 4th " only for describing object, and can not be interpreted as instruction or hint relative importance or the implicit quantity indicating indicated technical characteristic.Thus, be limited with " first ", " second ", " the 3rd ", " the 4th " feature can express or impliedly comprise at least one this feature.
In the present invention, being connected is make the connection of two element internals or the interaction relationship of two elements by pipeline.For the ordinary skill in the art, above-mentioned term concrete meaning in the present invention can be understood as the case may be.
Above the heat pump directly-heated type heating system of band regenerator of the present invention is described in detail, applies specific case herein and principle of the present invention and embodiment are set forth.The explanation of above embodiment just understands core concept of the present invention for helping; Meanwhile, for one of ordinary skill in the art, according to thought of the present invention, all will change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (9)
1. the heat pump directly-heated type heating system with regenerator, comprise compressor (01), outdoor heat exchanger (02), throttle part (03), the first heating radiator (04) and cross valve (05), the exhaust outlet of described compressor (01) is connected with the first port of described cross valve (05), and the air inlet of described compressor (01) is connected with the 3rd port of described cross valve (05); 4th port of described cross valve (05) is connected with the input of described first heating radiator (04), the output of described first heating radiator (04) is connected with the input of described throttle part (03), and the output of described throttle part (03) is connected with the second port of described cross valve (05) by described outdoor heat exchanger (02); It is characterized in that, also comprise regenerator (06), the high-pressure refrigerant input of described regenerator (06) is connected with the output of described first heating radiator (04), the high-pressure refrigerant output of described regenerator (06) is connected with the input of described throttle part (03), the low-pressure gas input of described regenerator (06) is connected with the output of described outdoor heat exchanger (02), and the low-pressure gas output of described regenerator (06) is connected with the second port of described cross valve (05).
2. the heat pump directly-heated type heating system of band regenerator according to claim 1, it is characterized in that, described heating system also comprises first flow control valve (07), the input of described first flow control valve (07) is connected with the 4th end of described cross valve (05), and the output of described first flow control valve (07) connects and is connected with the input of described first heating radiator (04).
3. the heat pump directly-heated type heating system of band regenerator according to claim 2, it is characterized in that, described heating system also comprises second control valve (08), the input of described second control valve (08) is connected with the output of described first heating radiator (04), and the output of described second control valve (08) connects and is connected with the high-pressure refrigerant input of described regenerator (06).
4. the heat pump directly-heated type heating system of the band regenerator according to Claims 2 or 3, it is characterized in that, described heating system also comprises the second heating radiator (09), the input of described second heating radiator (09) is connected with the output of described first flow control valve (07), and the output of described second heating radiator (09) is connected with the input of described first heating radiator (04).
5. the heat pump directly-heated type heating system of the band regenerator according to Claims 2 or 3, it is characterized in that, described system also comprises the second heating radiator (09), the input of described second heating radiator (09) is connected with the 4th port of described cross valve (04) by the 3rd flow control valve (10), and the output of described second heating radiator (09) is connected with the high-pressure refrigerant input of described regenerator (06).
6. the heat pump directly-heated type heating system of band regenerator according to claim 5, it is characterized in that, described heating system also comprises the 4th flow control valve (11), and described 4th flow control valve (11) is connected with the output of described second heating radiator (09) and the high-pressure refrigerant input of described regenerator (06) respectively.
7. the heat pump directly-heated type heating system of band regenerator according to claim 6, it is characterized in that, described system also comprises the 3rd heating radiator (12), the input of described 3rd heating radiator (12) is connected with the output of described 3rd flow control valve (10), and the output of described 3rd heating radiator (12) is connected with the input of described second heating radiator (09).
8. the heat pump directly-heated type heating system of band regenerator according to claim 7, it is characterized in that, input and the output of described first heating radiator (04), described second heating radiator (09) and described 3rd heating radiator (12) lay respectively on diagonal position, and input is upper, output under.
9. the heat pump directly-heated type heating system of band regenerator according to claim 8, is characterized in that, the cold-producing medium in described compressor (03) is carbon dioxide or freon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510264587.1A CN104879964A (en) | 2015-05-21 | 2015-05-21 | Heat pump directly-heating type heating system with heat return device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510264587.1A CN104879964A (en) | 2015-05-21 | 2015-05-21 | Heat pump directly-heating type heating system with heat return device |
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| CN104879964A true CN104879964A (en) | 2015-09-02 |
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| CN201510264587.1A Pending CN104879964A (en) | 2015-05-21 | 2015-05-21 | Heat pump directly-heating type heating system with heat return device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106247664A (en) * | 2016-08-09 | 2016-12-21 | 江苏杰英能源科技有限公司 | A kind of carbon dioxide air source heat pump |
| DE102021002899A1 (en) | 2021-06-08 | 2022-12-08 | Gea Refrigeration Netherlands N.V. | Heat exchanger arrangement for heat pump and heat pump with the same |
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| DE102021002899A1 (en) | 2021-06-08 | 2022-12-08 | Gea Refrigeration Netherlands N.V. | Heat exchanger arrangement for heat pump and heat pump with the same |
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