CN102072536A - Outdoor unit of split air conditioner used for ship - Google Patents
Outdoor unit of split air conditioner used for ship Download PDFInfo
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- CN102072536A CN102072536A CN2010105922835A CN201010592283A CN102072536A CN 102072536 A CN102072536 A CN 102072536A CN 2010105922835 A CN2010105922835 A CN 2010105922835A CN 201010592283 A CN201010592283 A CN 201010592283A CN 102072536 A CN102072536 A CN 102072536A
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Abstract
The invention relates to an outdoor unit of a split air conditioner used for a ship, comprising a stainless steel case and a digital vortex compressor arranged in the stainless steel case, a liquid storage tube, an L-shaped condenser, an axial flow fan and a drying filter, wherein the digital vortex compressor is connected with the L-shaped condenser, the L-shaped condenser is fixed with two adjacent sides of the stainless steel case, the outlet of the L-shaped condenser is connected with a liquid storage device, the liquid storage device is connected with the drying filter, the axial flow fan is fixed on the stainless steel case, and the air outlet of the axial flow fan faces towards the L-shaped condenser. The L-shaped condenser is adopted, and especially the digital vortex compressor is adopted in the invention, thus the volume of the outdoor unit is small, stepless capacity output is realized, the energy efficiency ratio is high, the indoor temperature is controlled to be stable, the dehumidification capability is high, the oil return performance is good, no electromagnetic interference is produced, the reliability is high, the compactness is good, and especially the effect of saving energy is achieved.
Description
Technical field
The present invention relates to a kind of high-performance off-premises station of split-type air conditioner peculiar to vessel, belong to air conditioner technical field.
Background technology
Air conditioning of variable refrigerant volume has obtained using widely in actual engineering at present, the corresponding product of each big numerous and confused release of air-conditioning producer, the nineties in 20th century, China introduced converter technique from Japan, each domestic air-conditioning producer such as sky Canada-United States, Haier etc. also developed frequency-conversion air-conditioning system one after another.
Frequency conversion: the capacity of compressor is that the rotating speed by the frequency-changeable compressor motor changes, and when indoor load required to improve, the frequency of compressor motor increased thereupon, thereby causes motor rotary speed faster, and capacity is higher.Similarly, when indoor load required to decrease, the frequency of compressor reduced, thereby capacity is reduced.
From frequency-changeable compressor motor speed formula (1) as can be seen, under the condition that motor is selected, frequency and rotating speed are to concern one to one.Regulate the motor incoming frequency, can change rotating speed of motor, thereby the control cold medium flux is to adapt to different indoor loads.
Formula (1) n=s60f/P, wherein, n-motor speed, r/min; F-motor stator frequency of supply, Hz; The revolutional slip of s-motor; P-motor number of pole-pairs;
The operating frequency level range of frequency-changeable compressor is between 30 hertz to 117 hertz, and adjustable range is between 50%～130%.Frequency conversion off-premises station with a 10P is an example, and there are two 5P compressors inside, and one is common constant speed control, and one is VFC.When loading when 5P is following, frequency-changeable compressor starts and changes its output quantity of adjusting according to amount of capacity.When load increases to 5P when above gradually, constant speed compressor full load operation, frequency-changeable compressor are only exported its insufficient section.When loading when 10P is above, off-premises station is that several 8P or 10P module are formed in parallel, and a frequency conversion off-premises station is only arranged, and is constant speed compressor in other the off-premises station.Like this, when the minimum capacity rank of 5P compressor was 25%, the minimum capacity rank of 10P then was 12.5%, and 20P then is 6.25%, promptly exists module many more, the characteristics that its minimum capacity rank is more little.But its load variable capacity rank is limited, and its output is interrupted.And, when indoor load suddenly from little change when big, the frequency of compressor increases to be needed through the middle transition section.This just means that when the indoor load changes in demand, compressor then will have the time of one section response to new load.
The loss of frequency converter accounts for 15% of power consumption greatly, has so just reduced the COP of system.When indoor total capacity requires to hang down (as 10%, 20% or 30%), frequency conversion system must use the hot-gas bypass of cold-producing medium to carry out capacity regulating.Require under the lower situation in indoor total capacity, because the hot-gas bypass of cold-producing medium, energy can be lossy, and the COP of system reduces.Room temperature control is general, and behind long-play, indoor temperature tends towards stability and near design temperature.But a new volume change (as opened several indoor sets in same refrigeration system) if desired, Frequency Converter Control just need little by little improve frequency, and is unstable in this transitional period indoor temperature control more.At sultry plum rain season, refrigeration duty may be very low, and in this case, the rotating speed of frequency-changeable compressor can be very low, and the speed of return-air also can be very low.Higher evaporating pressure and evaporating temperature have so just been caused.Therefore, the dehumidifying effect of this moment reduces.
When refrigeration duty was low, the oil return difficulty improved, because the frequency-changeable compressor rotating speed is very low.Therefore, the low speed of return-air has just caused oil return because of difficulty.For addressing this problem, frequency conversion system must add many oil return circulations after operation at set intervals.This is more obvious for the big more outdoor unit of capacity, because the return-air caliber is very big, return-air speed is very low under the sub-load situation.Therefore need more frequent oil return circulation, and consume more electric power, the poor stability of system.PCB of off-premises station (printed circuit board (PCB)) and pipeline are very complicated.PCB comprises thousands of parts, and pipeline is labyrinth-like, comprises oil eliminator, bypass circulation etc.The Frequency Converter Control plate produces a large amount of heatings, and burn summer easily.
Frequency-variable controller can produce higher hamonic wave, causes some problems, and the precision of, precision instrument overheated as transformer/capacitor reduces and the transmission of interfering TV signal, movable signal and subway station signal etc.For solving electromagnetic interference problem, off-premises station/indoor set all need add noise filter or choke coil, thereby has improved the cost of system.
Existing ship makes up with two single face condensers with split-type air conditioner high-performance outdoor machine system, and the off-premises station volume is big, and weight is big; Existing ship is used common totally-enclosed compressor mostly with the split off-premises station, performance is better uses frequency-changeable compressor, but also there are shortcomings such as capacity output is interrupted, efficiency is low, indoor temperature control is unstable, wet-out property is low, the oil return difficulty is big, electromagnetic interference is big in frequency-changeable compressor.
Summary of the invention
The objective of the invention is to overcome the deficiency that prior art exists, a kind of off-premises station of split-type air conditioner peculiar to vessel is provided.
Purpose of the present invention is achieved through the following technical solutions:
The off-premises station of split-type air conditioner peculiar to vessel, characteristics are: comprise Stainless Steel Shell and the digital scroll compressor, liquid storage pipe, L shaped condenser, axial flow blower, the device for drying and filtering that are installed in the Stainless Steel Shell, described digital scroll compressor connects L type condenser, two adjacent side of described L type condenser and Stainless Steel Shell fix, the outlet of described L type condenser connects reservoir, described reservoir connects device for drying and filtering, described axial flow blower is fixed on the Stainless Steel Shell, and the air outlet of axial flow blower is towards L type condenser.
The substantive distinguishing features of technical solution of the present invention and progressive being mainly reflected in:
Air-conditioner outdoor unit of the present invention has adopted L shaped condenser, after particularly having adopted digital scroll compressor, make little, the no level capacity output of this off-premises station volume, Energy Efficiency Ratio height, indoor temperature control is stable, dehumidifying effect is strong, good, the no electromagnetic interference of oil return performance, reliability height, compactness are good, especially reached energy-conservation effect, be rated as have novelty, the good technology of creativeness, practicality.
Description of drawings
Below in conjunction with accompanying drawing technical solution of the present invention is described further:
Fig. 1: organigram of the present invention.
The implication of each Reference numeral sees the following form among the figure:
The specific embodiment
As shown in Figure 1, the off-premises station of split-type air conditioner peculiar to vessel, comprise Stainless Steel Shell 2 and the digital scroll compressor 3 that is installed in the Stainless Steel Shell, liquid storage pipe 4, L shaped condenser 5, axial flow blower 6, device for drying and filtering 7, intake valve links to each other with the low-pressure end of digital scroll compressor 3, the high-pressure side of digital scroll compressor 3 be connected L type condenser 5, L type condenser 5 fixes with two adjacent side of Stainless Steel Shell, the outlet of L type condenser 5 connects reservoir 4, reservoir 4 connects device for drying and filtering 7, the outlet of device for drying and filtering 7 is equipped with liquid valve 9, axial flow blower 6 is fixed on the stainless steel casing 2, and the air outlet of axial flow blower 6 is towards L type condenser 5.
The refrigerant gas of low-temp low-pressure enters digital scroll compressor 3 by intake valve, by digital scroll compressor 3 compressions, behind the gas with refrigerant gas boil down to HTHP, enter L type condenser 5, under axial flow blower 6 operation, behind the liquid of warm high pressure, enter reservoir 4 during the refrigerant gas of HTHP is cooled to by L type condenser, after passing through the dry filter of device for drying and filtering 7 then, enter indoor set by liquid valve 9.On the suction line of digital scroll compressor He on the gas exhaust piping Pressure gauge 1 is installed, shows height pressure, the height pressure by pressure control switch 8 control digital scroll compressors 3 plays a protective role.Unit casing adopts stainless steel material to make, and L shaped condenser 5 adopts the copper pipe copper fin, and condenser tube plate adopts stainless steel material.Axial-flow fan motor 6 adopts marine electric machine.
Adopt digital scroll compressor, digital vortex principle to be, compressor capacity is that the periodicity engagement by scroll plate changes with throwing off.When the external electric magnet valve was closed, digital vortex was worked as the standard type compressor, and capacity reaches 100%, and when the external electric magnet valve was opened, two vortexs broke away from a little.Compressor did not have cold-producing medium and was compressed this moment, thereby had capacity output yet.
Adopt digital scroll compressor, digital scroll compressor has following characteristics:
1 no level capacity output
The output of digital vortex is between 10% to 100%.Owing to can change compressor output by the ratio that changes the load time, thereby realize continuous capacity output, promptly stepless output.Because the output of continuous capacity is provided, compressor can more accurate control indoor temperature, and more energy-conservation.
2 Energy Efficiency Ratio/COP
Digital vortex: do not have the frequency converter loss, equally also do not have the hot-gas bypass of cold-producing medium, therefore in 10% to 100% load range, COP is functional.Energy loss very low (only being 10%) when unloaded, this also makes digital vortex, and COP also can be higher under the situation of sub-load.
The control of 3 indoor temperatures
Digital vortex: room temperature control is good, and in the whole service scope (10%-100%), digital scroll compressor can be realized continuous, stepless capacity regulating.A new volume change (as opened several indoor sets in same refrigeration system) if desired, the output capacity of compressor can promptly be adjusted to another ratio from a ratio more.Reaction more rapidly can be made to load variations by the digital scroll compressor system that makes.
4 wet-out properties
Digital vortex: at sultry plum rain season, although refrigeration duty may be very low.In each circulation (as 10s), the oepration at full load state in several seconds is arranged still.Make the speed corrugate of return-air rise and fall, this makes average evaporating pressure and temperature lower, and wet-out property is better.
5 oil return performances
Digital vortex: oil return is good, in each circulation (as 10s), the oepration at full load state in several seconds is arranged still.This makes the speed corrugate of return-air rise and fall, so oil return is better.Simultaneously, in each unloaded phase, there is not exhaust in the compressor, so this moment, unlubricated oil was discharged.Service life is long.The PCB of off-premises station compares with the connected system with pipeline, seems very simple, no bypass circulation.A PCB is just enough.
6 environmental protection
Digital vortex: meet the requirement of EMC electromagnetic compatibility, a series of problems that the higher hamonic wave that no frequency conversion system produces etc. is brought.
Digital scroll compressor has adopted varying capacity technology-digital vortex technology of upgrading, and the electromagnetic interference source-frequency converter in the variable speed technology of abandoning adopts load and unloading to replace control technology, has stopped to produce the possibility of a large amount of higher hamonic waves.And, when a fairly large number of equipment is installed, because of equipment produces the also reduction greatly of risk that the disturbing wave stack causes the electromagnetic interference reinforcement so that influences the miscellaneous equipment normal operation, bring more healthy, safer environment-guarantee for life, work, scientific research, medical treatment, aviation etc.Studies show that according to relevant electromagnetic interference influences equipment, medical imaging device, aerial navigation etc. to signal emitting and receiving equipment, programme-controlled exchange, precision instrument, sound equipment and has a negative impact, even influences health.
In sum, because this air-conditioner outdoor unit has adopted L shaped condenser, after particularly having adopted digital scroll compressor, make little, the no level capacity output of this off-premises station volume, Energy Efficiency Ratio height, indoor temperature control is stable, dehumidifying effect is strong, good, the no electromagnetic interference of oil return performance, reliability height, compactness are good, has especially reached energy-conservation effect.
It is emphasized that: above only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, every foundation technical spirit of the present invention all still belongs in the scope of technical solution of the present invention any simple modification, equivalent variations and modification that above embodiment did.
Claims (3)
1. the off-premises station of split-type air conditioner peculiar to vessel, it is characterized in that: comprise Stainless Steel Shell and the digital scroll compressor, liquid storage pipe, L shaped condenser, axial flow blower, the device for drying and filtering that are installed in the Stainless Steel Shell, described digital scroll compressor connects L type condenser, two adjacent side of described L type condenser and Stainless Steel Shell fix, the outlet of described L type condenser connects reservoir, described reservoir connects device for drying and filtering, described axial flow blower is fixed on the Stainless Steel Shell, and the air outlet of axial flow blower is towards L type condenser.
2. the off-premises station of split-type air conditioner peculiar to vessel according to claim 1 is characterized in that: on the suction line of described digital scroll compressor He on the gas exhaust piping Pressure gauge is installed.
3. the off-premises station of split-type air conditioner peculiar to vessel according to claim 1, it is characterized in that: the outlet of described device for drying and filtering is equipped with liquid valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105922835A CN102072536A (en) | 2010-12-16 | 2010-12-16 | Outdoor unit of split air conditioner used for ship |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010105922835A CN102072536A (en) | 2010-12-16 | 2010-12-16 | Outdoor unit of split air conditioner used for ship |
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| CN102072536A true CN102072536A (en) | 2011-05-25 |
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| CN2010105922835A Pending CN102072536A (en) | 2010-12-16 | 2010-12-16 | Outdoor unit of split air conditioner used for ship |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102353128A (en) * | 2011-08-20 | 2012-02-15 | 江苏阿尔特空调实业有限责任公司 | Installation structure of drying and filtering device and liquid reservoir in air conditioner |
| CN103851854A (en) * | 2014-02-10 | 2014-06-11 | 中船重工天禾船舶设备江苏有限公司 | Air cooling refrigerating device for ships |
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| CN101408327A (en) * | 2007-10-11 | 2009-04-15 | 乐金电子(天津)电器有限公司 | Fixing structure of compressor of outdoor unit of air conditioner |
| CN201637005U (en) * | 2009-11-04 | 2010-11-17 | 中国船舶重工集团公司第七○四研究所 | Marine clean air conditioner |
| CN201897268U (en) * | 2010-12-16 | 2011-07-13 | 张家港市江南利玛特设备制造有限公司 | Outdoor unit of marine split air conditioner |
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2010
- 2010-12-16 CN CN2010105922835A patent/CN102072536A/en active Pending
Patent Citations (9)
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| JP2005140365A (en) * | 2003-11-05 | 2005-06-02 | Mitsubishi Electric Corp | Air conditioner with ventilator |
| JP4298470B2 (en) * | 2003-11-05 | 2009-07-22 | 三菱電機株式会社 | Air conditioner with ventilation function |
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| CN101408327A (en) * | 2007-10-11 | 2009-04-15 | 乐金电子(天津)电器有限公司 | Fixing structure of compressor of outdoor unit of air conditioner |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102353128A (en) * | 2011-08-20 | 2012-02-15 | 江苏阿尔特空调实业有限责任公司 | Installation structure of drying and filtering device and liquid reservoir in air conditioner |
| CN102353128B (en) * | 2011-08-20 | 2014-02-05 | 江苏阿尔特空调实业有限责任公司 | Installation structure of drying and filtering device and liquid reservoir in air conditioner |
| CN103851854A (en) * | 2014-02-10 | 2014-06-11 | 中船重工天禾船舶设备江苏有限公司 | Air cooling refrigerating device for ships |
| CN103851854B (en) * | 2014-02-10 | 2016-01-13 | 中船重工天禾船舶设备江苏有限公司 | A kind of air-cooled cold storage plant peculiar to vessel |
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Application publication date: 20110525 |