CN2524181Y - Multiple system blowing pipe style heat pump defroster - Google Patents
Multiple system blowing pipe style heat pump defroster Download PDFInfo
- Publication number
- CN2524181Y CN2524181Y CN 01278829 CN01278829U CN2524181Y CN 2524181 Y CN2524181 Y CN 2524181Y CN 01278829 CN01278829 CN 01278829 CN 01278829 U CN01278829 U CN 01278829U CN 2524181 Y CN2524181 Y CN 2524181Y
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- heat pump
- heat exchanger
- defrosting
- circulating device
- pump circulating
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- Air Conditioning Control Device (AREA)
- Defrosting Systems (AREA)
Abstract
The utility model discloses a multi system wind pipe heat pump to remove the frost which comprises a plurality of heat pump circulating devices which mainly comprises a compressor 8, a four way inverting valve 9, an outdoor heat exchanger 10, an expansion valve 14 and an indoor heat exchanger 11. The utility model is characterized in that the indoor heat exchanger 11 is positioned in a mixed heat exchanger 12 and each copper tube 13 of the indoor heat exchanger 11 is arrayed neighboringly and staggerly. Therefore the coil of the system can exchange the heat directly and enhance the frost removing efficiency. The utility model needs a short time and can prevent the cold wind when removing the frost.
Description
The utility model discloses a kind of defroster that is applied to multi system air duct formula source pump and modularization Air-Cooled Heat Pump Unit, particularly a kind of multi system air duct blow type heat pump machine frost eliminating device.
In the air-conditioning equipment, the multi system air duct blow source pump when heating operation, when outdoor temperature low, outdoor heat exchanger (evaporimeter) surface meeting frosting gradually, along with the thickening of frost layer, the leaving air temp of indoor heat exchanger and heating capacity can reduce gradually, and should defrost this moment.
The multi system air duct blow source pump adopts the anti-simultaneously circulation defrosting of multisystem at present mostly, promptly when the defrost controller has detected one or more systems and has needed defrost, the promptly counter simultaneously defrosting that circulates of each system, as shown in Figure 1, for system 1, four-way change-over valve 1-1 action as condenser, defrosts outdoor heat exchanger 1-3 during defrosting to its conveying capacity.Detailed process is: the compressed machine 1-2 of cold-producing medium is compressed into high temperature and high pressure gas, through four-way change-over valve 1-1 inlet chamber external heat exchanger 1-3 (condenser), transfer the thermalization frost in the effect of outdoor fan 1-5, become cryogenic liquid through expansion valve 1-4 throttling again, then in heat absorption evaporation in indoor heat exchanger 7 (evaporimeter) under the effect of indoor fan 6, be back to compressor 1-2 by four-way change-over valve 1-1 once more at last, defrost so circulates.System 2 also is like this.To arbitrary system, when its defrost controller detected native system and need not defrost, system promptly stopped defrost, waited for that then other system's defrost finishes, and carries out the heating condition operation more together when all system's defrosts finish.
The main feature of anti-simultaneously circulation defrosting is: as long as there is a system to need defrosting, each system promptly defrosts simultaneously, the indoor and outdoor blower fan is out of service, need wait for when system's defrost finishes that other system's defrost finishes, and then carry out the heating condition operation together.The main following points of the shortcoming of this Defrost method:
1, defrosting scarce capacity, the defrost time is long.Mainly contain following several reasons: consider for comfortableness that 1) indoor fan is shut down during defrost, indoor load is very for a short time to be difficult to cold scattering, and the expansion valve flow descends rapidly and causes underfed, and the defrosting heat reduces; 2) after the defrosting beginning, the thermal expansion valve opening reduces, and attenuation process of the high and low generation in the refrigeration system is easy to generate low-voltage variation, has prolonged defrosting time, and refrigeration system is produced compression shock; 3) the indoor and outdoor heat exchanger fan is out of service, and the origin of heat of defrosting is mainly electric power that compressor consumes and amount of stored heat two parts of compressor housing.Compare with the standard cooling condition, compressor power output under defrosting operating condition reduces, and causes the defrosting ability drop, might produce the incomplete problem of defrosting.
As long as 2 have a system to need defrosting, each system promptly defrosts simultaneously.When multi system air duct blow unit heating operation, have only the part system to need defrosting sometimes, simultaneously counter follow not defrost make some systems that do not need Defrost operation also be forced to defrost, very uneconomical.
3, " anti-circulation defrosting simultaneously " defrosts and heats synchronously and carry out, and will wait for when system's defrosting finishes that other system's defrosting finishes, and causes the defrosting time waste, and the heating operation time reduces.
The objective of the invention is provides a kind of raising defrost effect for the deficiency that solves above-mentioned technology, reduces the multi system air duct blow type heat pump machine frost eliminating device of defrosting time, raising unit operation economy.
In order to achieve the above object, the designed multi system air duct blow type heat pump machine frost eliminating device of the utility model comprises the heat pump circulating device that many groups mainly are made up of compressor, four-way change-over valve, outdoor heat exchanger expansion valve and indoor heat exchanger, the indoor heat exchanger that it is characterized in that respectively organizing in the heat pump circulating device is arranged in same the mixing assortment heat exchanger, and the copper pipe of each indoor heat exchanger is by intersecting adjacent arrangement along separate routes.At work, when one group of heat pump circulating device was in the defrost operating condition, all the other heat pump circulating devices still carried out the heat operation.For dual system, when one of heat pump circulating device was in defrosting operating condition, two of heat pump circulating device must carry out heating operation.
The multi system air duct blow type heat pump machine frost eliminating device that the utility model obtains adopts in when defrosting and to intersect defrosting, and each group heat pump circulating device is taked defrost in turn, and during a certain system defrost, all the other systems still are in the operation of heat pump state.Compare with " anti-circulation defrosting simultaneously ", has following advantage: 1) because its indoor heat converter adopts the assortment mode of mixing, each system chambers inner coil pipe can directly carry out heat exchange, just the evaporimeter in the system of Defrost operation can be from just absorbing heat the condenser of heating operation system, increase the origin of heat of defrosting, strengthened defrosting effect.2) expansion valve opening is bigger, and cold medium flux is big when adopting " anti-circulation defrosting simultaneously ", is difficult for producing low-voltage variation, and is little to the impact of refrigeration system, reduced defrosting time.3) because each system defrosts respectively, and some system is not forced to defrost and wait for the problem that defrosting finishes when not having employing " anti-circulation defrosting simultaneously ", the time of heating is prolonged, and has improved the economy of unit operation.4) help combining, improve defrosting efficiency and human body comfort with other Defrost method (as the electric defrosting method).When adopting " anti-circulation defrosting simultaneously " defrosting, in order to prevent to blow a cold wind over, improve human body comfort, if simultaneously in conjunction with electric defrosting, because all units defrost simultaneously, required electrical heating power is very big, often is difficult to meet the demands.When adopting " anti-circulation defrosting simultaneously " defrosting, has only a system in defrosting for a certain special time, the refrigeratory capacity of defrost system may can be offset even be surpassed to other heating capacities that are in the heating operation system, and (dual system) power demand is also very little when needing electrical heating.
Fig. 1 is a multi system air duct blow source pump structural representation;
Fig. 2 is two group heat pump circulating device structural representations;
Fig. 3 is that the indoor heat exchanger copper pipe is by shunt cross arrangement structural representation.
The utility model will be further described by embodiment below in conjunction with accompanying drawing.
Embodiment:
The multi system air duct blow type heat pump machine frost eliminating device that present embodiment is described, comprise the heat pump circulating device that many groups mainly are made up of compressor 8, four-way change-over valve 9, outdoor heat exchanger 10, expansion valve 14 and indoor heat exchanger 11, each indoor heat exchanger 11 of organizing in the heat pump circulating device is arranged in same the mixing assortment heat exchanger 12, and the copper pipe 13 of each indoor heat exchanger 11 is by intersecting adjacent arrangement along separate routes.At work, when one group of heat pump circulating device was in the defrost operating condition, all the other heat pump circulating devices still carried out the heat operation.For dual system, when heat pump circulating device 1 was in defrosting operating condition, heat pump circulating device 2 must carry out heating operation.Adopt " mixing the assortment heat exchanger " form as multisystem unit indoor heat exchanger, each heat pump circulating device indoor heat exchanger copper pipe is by cross arrangement along separate routes, when heat pump circulating device 1 is in defrosting operating condition, cold-producing medium is by compressor 8, the four-way change-over valve 9 of flowing through, outdoor heat exchanger 10, expansion valve 14, when arriving indoor mixing assortment heat exchanger 12, since this moment indoor heat exchanger 11 be the evaporimeter of heat pump circulating device 1 be again the condenser of heat pump circulating device 2 simultaneously, the cold-producing medium of heat pump circulating device 1 evaporates by the condensation heat that indoor heat exchanger has absorbed heat pump circulating device 2, and then be back to compressor 8 by four-way change-over valve 9, so circulation; At this moment, heat pump circulating device 2 is in heating operation.When the defrost controller of heat pump circulating device 1 receives the signal that stops defrost, promptly stop defrost, carry out the heating condition operation with heat pump circulating device 2 then.If heat pump circulating device 1 defrost does not also finish, and heat pump circulating device 2 is when itself also having defrosting to require, and heat pump circulating device 2 must wait for that 1 defrosts finish, and just can enter heating condition then; Because the 1 required defrost time of heat pump circulating device is not grown (being generally a few minutes), 2 short time of heat pump circulating device force heating operation that its normal operation is not had much influences.On the contrary, if heat pump circulating device 2 requirement that do not defrost when heat pump circulating device 1 defrosting, then when heat pump circulating device 1 defrosting finishes, two heat pump circulating devices are in heating condition after operation a period of time together, because the 2 continuous heating operation times of heat pump circulating device are longer, when heat pump circulating device 2 received the defrosting order prior to heat pump circulating device 1, heat pump circulating device 2 promptly entered defrosting operating condition, at this moment, heat pump circulating device 1 still carries out heating operation, defrost so in turn.
Claims (1)
1, a kind of multi system air duct blow type heat pump machine frost eliminating device, comprise the heat pump circulating device that many groups mainly are made up of compressor (8), four-way change-over valve (9), outdoor heat exchanger (10) expansion valve (14) and indoor heat exchanger (11), the indoor heat exchanger (11) that it is characterized in that respectively organizing in the heat pump circulating device is arranged in same the mixing assortment heat exchanger (12), and the copper pipe (13) of each indoor heat exchanger (11) is by intersecting adjacent arrangement along separate routes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01278829 CN2524181Y (en) | 2001-12-20 | 2001-12-20 | Multiple system blowing pipe style heat pump defroster |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01278829 CN2524181Y (en) | 2001-12-20 | 2001-12-20 | Multiple system blowing pipe style heat pump defroster |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2524181Y true CN2524181Y (en) | 2002-12-04 |
Family
ID=33682241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01278829 Expired - Fee Related CN2524181Y (en) | 2001-12-20 | 2001-12-20 | Multiple system blowing pipe style heat pump defroster |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2524181Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102589083A (en) * | 2011-01-17 | 2012-07-18 | 珠海格力电器股份有限公司 | Defrosting control method for multi-system air conditioning equipment |
| CN105650947A (en) * | 2009-07-28 | 2016-06-08 | 东芝开利株式会社 | Heat source unit |
-
2001
- 2001-12-20 CN CN 01278829 patent/CN2524181Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105650947A (en) * | 2009-07-28 | 2016-06-08 | 东芝开利株式会社 | Heat source unit |
| CN102589083A (en) * | 2011-01-17 | 2012-07-18 | 珠海格力电器股份有限公司 | Defrosting control method for multi-system air conditioning equipment |
| CN102589083B (en) * | 2011-01-17 | 2014-03-19 | 珠海格力电器股份有限公司 | Defrosting control method for multi-system air conditioning equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |