CN102042644B - Split-type air conditioner outdoor unit with double rising inhalation pipe - Google Patents
Split-type air conditioner outdoor unit with double rising inhalation pipe Download PDFInfo
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- CN102042644B CN102042644B CN200910070861.6A CN200910070861A CN102042644B CN 102042644 B CN102042644 B CN 102042644B CN 200910070861 A CN200910070861 A CN 200910070861A CN 102042644 B CN102042644 B CN 102042644B
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- air intake
- intake duct
- air
- inhalation pipe
- housing
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Abstract
The present invention discloses a split-type air conditioner outdoor unit with a double rising inhalation pipe, which comprises a housing, a chassis, a compressor, a condenser, a fan motor, an outdoor fan, a baffle plate, a liquid storage tank, and an inhalation pipe connected between an indoor set and the liquid storage tank and flowed the gaseous refrigerant and the liquid oil after heat exchange with the indoor set. Wherein the inhalation pipe is divided into a L-shaped first inhalation pipe and a L-shaped second inhalation pipe through a three-way oil gathering bend at one side of bending section of the bottom end of the inhalation pipe, the first inhalation pipe and the second inhalation pipe are merged through the three-way oil gathering bend at a vertical section of the inhalation pipe, and the caliber of the first inhalation pipe is less than that of the second inhalation pipe. The system of the invention operates with low pressure drop, and can ensure the oil return when the system operates at a low-load situation to solve the problem of the contradiction between the pressure drop control and the oil return. Particularly, the present invention has more obvious effect on frequency conversion air-conditioning whose change of the refrigerant flow velocity is large.
Description
Technical field
The present invention relates to air-conditioning, especially a kind of Split type air conditioner outdoor machine with two rising air intake ducts.
Background technology
In general, air conditioner is arranged on the wall of the interior spaces such as office or family, the refrigerating/heating household electrical appliance that room air is freezed or heated.Air conditioner forms refrigerating/heating circulation by compressor, condenser, expansion valve, evaporimeter.
Air conditioner forms with the indoor set that is arranged on interior of building by being arranged on outdoor off-premises station.On off-premises station, be provided with condenser (outdoor heat converter) and compressor, on indoor set, be provided with evaporimeter (indoor heat converter).
The kind of air conditioner is roughly divided into off-premises station and the indoor type-dividing conditioner being separated from each other and off-premises station and indoor set and forms an overall integrated air conditioner.
As shown in Figure 1, the air-conditioner outdoor unit of prior art mainly comprises: form four sides of off-premises station, front end face is provided with air discharge grille, and rear end face is provided with the housing of multiple air inlets; The chassis 2 that is arranged on the bottom of housing and the each parts of off-premises station can be installed on it; Be arranged on top one side on chassis 2, low-temp low-pressure gaseous coolant can be compressed into the compressor 3 of HTHP gaseous coolant; Be arranged on the rear part edge place on chassis 2, the condenser 4 that can make refrigerant mobile in it and its surrounding air carry out heat exchange; Be arranged on the top in 2 opposite side centres, chassis, after switching on power, can produce the fan electromotor 5 of rotary power; Be connected with the output shaft of fan electromotor, thereby can under the revolving force effect of fan electromotor, rotate, thereby by extraneous air the air inlet from housing rear end face be drawn into the inside of housing and by the air that carried out heat exchange with condenser 4 air discharge grille from housing front end face discharged to the outdoor fan 6 of the exterior space; Be vertically set on the baffle plate 7 between compressor 3 and condenser 4 and outdoor fan 6; And can be arranged on the top cover on housing top.Fluid reservoir 8 is positioned at compressor 3 sides, and air intake duct 9 is connected between indoor set and fluid reservoir 8, and the gaseous coolant (being entrained with liquid oil) after indoor set heat exchange flows into fluid reservoir 8 through air intake duct 9, then flows back to compressor 3.
The air intake duct 9 of prior art is the circular winding pipe of a uniform diameter, and form oil return curved 10 in air intake duct bending section least significant end, in gaseous coolant due to the oil return of flowing through curved 10, be entrained with liquid oil, air-conditioning is when low load operation, for guaranteeing oil return, the general air intake duct caliber of selecting is less, and still, the little meeting of caliber causes the pressure drop when running at full capacity excessive.For guaranteeing the normal operation of machine, generally can select to bear excessive pressure drop.
Summary of the invention
Technical problem to be solved by this invention is, provides a kind of system operation pressure drop little, can guarantee the Split type air conditioner outdoor machine with two rising air intake ducts of oil return when low load operation.
For technical solution problem, the technical solution used in the present invention is: a kind of Split type air conditioner outdoor machine with two rising air intake ducts, comprising: form four sides of off-premises station, front end face is provided with air discharge grille, and rear end face is provided with the housing of multiple air inlets; The chassis that is arranged on the bottom of housing and the each parts of off-premises station are installed on it; Be arranged on top one side on chassis, low-temp low-pressure gaseous coolant be compressed into the compressor of HTHP gaseous coolant; Be arranged on the rear part edge place on chassis, the condenser that makes refrigerant mobile in it and its surrounding air carry out heat exchange; Be arranged on the top in opposite side centre, chassis, after switching on power, produce the fan electromotor of rotary power; Be connected with the output shaft of fan electromotor, under the revolving force effect of fan electromotor, rotate, the air inlet by extraneous air from housing rear end face be drawn into the inside of housing and by the air that carried out heat exchange with condenser the air discharge grille from housing front end face discharged to the outdoor fan of the exterior space; Be vertically set on the baffle plate between compressor and condenser and outdoor fan; Be arranged on the top cover on housing top; Be positioned at the fluid reservoir of compressor side; Be connected between indoor set and fluid reservoir, gaseous coolant after indoor set heat exchange and the air intake duct of fluid oil are flowing, in air intake duct lowermost end bending section one side, air intake duct is divided into the first L shaped air intake duct and the second L shaped air intake duct through threeway oil-collecting elbow, it is the caliber that the caliber of one, the first air intake duct is less than the second air intake duct that the first air intake duct and the second air intake duct converge through threeway oil-collecting elbow at vertical section of air intake duct.
The caliber of the first air intake duct and the second air intake duct, at full capacity time, the first air intake duct and the second air intake duct are used simultaneously, and two tube section sums can guarantee that tube refrigerant has band speed oil, and do not produce excessive Pressure Drop; When minimum load, only the first air intake duct is used, can oil return when the size of the caliber of the first air intake duct guarantees minimum load.
The invention has the beneficial effects as follows: system operation pressure drop is little, and can guarantee can guarantee oil return when low load operation, solved the contradiction of controlling pressure drop and oil return.Especially the convertible frequency air-conditioner changing greatly for refrigerant flow rate has more obvious effect.
Accompanying drawing explanation
Fig. 1 is the part-structure stereogram of the air conditioner outdoor unit of prior art.
Fig. 2 is the part-structure stereogram of the Split type air conditioner outdoor machine with two rising air intake ducts of the present invention.
Fig. 3 is the partial enlarged drawing of Fig. 2.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail:
As shown in Figure 2,3, the Split type air conditioner outdoor machine with two rising air intake ducts of the present invention, comprising: form four sides of off-premises station, front end face is provided with air discharge grille, and rear end face is provided with the housing of multiple air inlets; The chassis 2 that is arranged on the bottom of housing and the each parts of off-premises station are installed on it; Be arranged on top one side on chassis 2, low-temp low-pressure gaseous coolant be compressed into the compressor 3 of HTHP gaseous coolant; Be arranged on the rear part edge place on chassis 2, the condenser 4 that makes refrigerant mobile in it and its surrounding air carry out heat exchange; Be arranged on the top in 2 opposite side centres, chassis, after switching on power, produce the fan electromotor 5 of rotary power; Be connected with the output shaft of fan electromotor, under the revolving force effect of fan electromotor, rotate, the air inlet by extraneous air from housing rear end face be drawn into the inside of housing and by the air that carried out heat exchange with condenser 4 air discharge grille from housing front end face discharged to the outdoor fan 6 of the exterior space; Be vertically set on the baffle plate 7 between compressor 3 and condenser 4 and outdoor fan 6; Be arranged on the top cover on housing top; Be positioned at the fluid reservoir 8 of compressor 3 sides; Be connected between indoor set and fluid reservoir 8, gaseous coolant after indoor set heat exchange and the air intake duct 19 of fluid oil are flowing, in air intake duct lowermost end bending section one side, air intake duct is divided into the first L shaped air intake duct 21 and the second L shaped air intake duct 22 through threeway oil-collecting elbow, it is the caliber that the caliber of one, the first air intake duct 21 is less than the second air intake duct 22 that the first air intake duct 21 and the second air intake duct 22 converge through threeway oil-collecting elbow at vertical section of air intake duct.
The caliber of the first air intake duct 21 and the second air intake duct 22, at full capacity time, the first air intake duct 21 and the second air intake duct 22 are used simultaneously, and two tube section sums can guarantee that tube refrigerant has band speed oil, and do not produce excessive Pressure Drop; When minimum load, only the first air intake duct 21 is used, can oil return when the size of the caliber of the first air intake duct 21 guarantees minimum load.
Below, the course of work of the two rising air intake ducts to Split type air conditioner outdoor machine of the present invention is elaborated:
The air-breathing standpipe of two risings, the first air intake duct 21 calibers are less, and the size of its caliber is to select according to the minimum load that may occur, can oil return when it guarantees minimum load.The second air intake duct 22 calibers are larger.Two oil-collecting elbows of the first air intake duct 21 and the second air intake duct 22 use are connected.At full capacity time, the first air intake duct 21 and 22 two pipes of the second air intake duct are used simultaneously, and two tube section sums can guarantee that tube refrigerant has band speed oil, and do not produce excessive Pressure Drop.When variable load operation, start two pipes uses simultaneously, along with the reduction of load, velocity in pipes reduces, lubricating oil is gradually accumulated in elbow, until elbow is sealed, the second air intake duct 22 is cut off, and only depends on the first air intake duct 21 to work, the first air intake duct 21 velocities in pipes improve, can oil return while guaranteeing underload.Recovering after oepration at full load, because velocity in pipes increases, lubricating oil is discharged from elbow, and the first air intake duct 21 and 22 two pipes of the second air intake duct are worked again simultaneously.
System operation pressure drop of the present invention is little, and can guarantee can guarantee oil return when low load operation, has solved the contradiction of controlling pressure drop and oil return.Especially the convertible frequency air-conditioner changing greatly for refrigerant flow rate has more obvious effect.
In sum, content of the present invention is not limited in the above-described embodiment, and the knowledgeable people in same area can propose easily other embodiment within technological guidance's thought of the present invention, but this embodiment comprises within the scope of the present invention.
Claims (1)
1. with a Split type air conditioner outdoor machine for two rising air intake ducts, comprising: form four sides of off-premises station, front end face is provided with air discharge grille, and rear end face is provided with the housing of multiple air inlets, the chassis (2) that is arranged on the bottom of housing and the each parts of off-premises station are installed on it, be arranged on top one side on chassis (2), low-temp low-pressure gaseous coolant be compressed into the compressor (3) of HTHP gaseous coolant, be arranged on the rear part edge place on chassis (2), the condenser (4) that makes refrigerant mobile in it and its surrounding air carry out heat exchange, be arranged on the top in opposite side centre, chassis (2), after switching on power, produce the fan electromotor (5) of rotary power, be connected with the output shaft of fan electromotor, under the revolving force effect of fan electromotor, rotate, the air discharge grille of the air that the air inlet by extraneous air from housing rear end face is drawn into the inside of housing and will carries out heat exchange with condenser (4) from housing front end face is discharged to the outdoor fan (6) of the exterior space, be vertically set on the baffle plate (7) between compressor (3) and condenser (4) and outdoor fan (6), be arranged on the top cover on housing top, be positioned at the fluid reservoir (8) of compressor (3) side, be connected between indoor set and fluid reservoir (8), gaseous coolant after indoor set heat exchange and the air intake duct (19) of fluid oil are flowing, it is characterized in that, in air intake duct lowermost end bending section one side, air intake duct is divided into L shaped the first air intake duct (21) and L shaped the second air intake duct (22) through threeway oil-collecting elbow, it is one that the first air intake duct (21) and the second air intake duct (22) converge through threeway oil-collecting elbow vertical section of air intake duct, the caliber of the first air intake duct (21) is less than the caliber of the second air intake duct (22), the caliber of the first air intake duct (21) and the second air intake duct (22), at full capacity time, the first air intake duct (21) and the second air intake duct (22) are used simultaneously, two tube section sums can guarantee that tube refrigerant has band speed oil, and do not produce excessive Pressure Drop, when minimum load, only the first air intake duct (21) is used, can oil return when the size of the caliber of the first air intake duct (21) guarantees minimum load.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910070861.6A CN102042644B (en) | 2009-10-19 | 2009-10-19 | Split-type air conditioner outdoor unit with double rising inhalation pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910070861.6A CN102042644B (en) | 2009-10-19 | 2009-10-19 | Split-type air conditioner outdoor unit with double rising inhalation pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102042644A CN102042644A (en) | 2011-05-04 |
| CN102042644B true CN102042644B (en) | 2014-04-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200910070861.6A Expired - Fee Related CN102042644B (en) | 2009-10-19 | 2009-10-19 | Split-type air conditioner outdoor unit with double rising inhalation pipe |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105737466A (en) * | 2016-01-30 | 2016-07-06 | 珠海格力电器股份有限公司 | Oil return system and compressor system |
| CN109483104A (en) * | 2018-12-05 | 2019-03-19 | 格力电器（合肥）有限公司 | A kind of welding protecting tool set-up |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1417534A (en) * | 2001-11-09 | 2003-05-14 | 三洋电机株式会社 | Air conditioner |
| CN101086349A (en) * | 2006-06-07 | 2007-12-12 | 乐金电子(天津)电器有限公司 | Outdoor machine of air regulator |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004069101A (en) * | 2002-08-02 | 2004-03-04 | Yanmar Co Ltd | Accumulator, air conditioning equipment with accumulator, and its operating method |
| JP2004286240A (en) * | 2003-03-19 | 2004-10-14 | Yanmar Co Ltd | Engine drive heat pump |
-
2009
- 2009-10-19 CN CN200910070861.6A patent/CN102042644B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1417534A (en) * | 2001-11-09 | 2003-05-14 | 三洋电机株式会社 | Air conditioner |
| CN101086349A (en) * | 2006-06-07 | 2007-12-12 | 乐金电子(天津)电器有限公司 | Outdoor machine of air regulator |
Non-Patent Citations (2)
| Title |
|---|
| JP特开2004-286240A 2004.10.14 |
| JP特开2004-69101A 2004.03.04 |
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| CN102042644A (en) | 2011-05-04 |
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