CN201318754Y - Large ducted machine unit - Google Patents
Large ducted machine unit Download PDFInfo
- Publication number
- CN201318754Y CN201318754Y CNU2008202052617U CN200820205261U CN201318754Y CN 201318754 Y CN201318754 Y CN 201318754Y CN U2008202052617 U CNU2008202052617 U CN U2008202052617U CN 200820205261 U CN200820205261 U CN 200820205261U CN 201318754 Y CN201318754 Y CN 201318754Y
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- compressor
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- heat exchanger
- indoor heat
- indoor
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Abstract
The utility model relates to a large ducted machine unit, which comprises an indoor unit and an outdoor unit, wherein the indoor unit comprises one or more indoor heat exchangers and one or more throttling elements; the outdoor unit comprises one or more compression units; each compression unit comprises a first compressor and a second compressor; a cooling medium outlet of the first compressor is communicated with a first one-way valve through a first oil separator; a cooling medium outlet of the second compressor is communicated with a second one-way valve through a second oil separator; an outlet of the first one-way valve and an outlet of the second one-way valve are connected in parallel and then are communicated to a first interface of a four-way valve; a second interface of the four-way valve is communicated with a cooling medium outlet of an outdoor heat exchanger; the cooling medium outlet of the outdoor heat exchanger is communicated with a cooling medium inlet of the first indoor heat exchanger by the first throttling element; and a cooling medium outlet of the first indoor heat exchanger is communicated to a fourth interface of the four-way valve. The utility model has the characteristics of low manufacturing cost, convenient mounting, flexible operation, reliable performance and high energy efficiency.
Description
Technical field
The utility model relates to a kind of large-scale air-cooled ducted air conditioner unit.
Background technology
Common large-scale air-cooled ducted air conditioner unit is made up of an off-premises station and an indoor set.Off-premises station adopts a compressor, and indoor set comprises a throttling arrangement and an evaporimeter.This large-scale air-cooled ducted air conditioner unit is owing to forming a system by a compressor, and is so that the off-premises station volume is bigger, extremely inconvenient when transportation and installation, the coupling difficult design, it is not high to control complicated reliability, and cost is higher, maintenance cost is also high, simultaneously impacts bigger to electrical network during compressor start.
A kind of super split module residential central air-air-cooled ducted air conditioner is disclosed among the Chinese patent literature CN 2639781Y, mainly constitute: outdoor section, indoor section and automatic control system by three parts, it is characterized in that: outdoor section comprises 1～4 split-type air conditioner off-premises station, according to payload and computer program, with one is that a module forms a plurality of module combinations, and indoor section comprises by identical or different the having independent cooling or heat the multichannel energy-saving evaporator that pipeline is formed of multichannel capacity.Indoor multichannel energy-saving evaporator has separate refrigeration by multichannel or heats pipeline and a shared surface cooler is formed, and its each road all has a tracheae and the liquid Guan Keyu air-conditioner outdoor unit that is complementary to link to each other.Complex structure, the cost of manufacture of this central air-conditioning air-cooled ducted air conditioner is higher, control is cumbersome.
The utility model content
The purpose of this utility model aim to provide a kind of simple and reasonable, cost of manufacture is low, easy for installation, control flexibly, dependable performance, large-scale air-cooled ducted air conditioner unit that efficiency is high, to overcome weak point of the prior art.
A kind of large-scale air-cooled ducted air conditioner unit by this purpose design, comprise off-premises station and indoor set, wherein indoor set comprises one or above indoor heat exchanger and one or above restricting element, off-premises station comprises one and above compression unit, each compression unit comprises first compressor and second compressor, the refrigerant exit of first compressor is communicated with first check valve by first oil eliminator, the refrigerant exit of second compressor is communicated with second check valve by second oil eliminator, be connected with first interface of cross valve after the outlet parallel connection of the outlet of first check valve and second check valve, second interface of cross valve is connected with the refrigerant of outdoor heat exchanger inlet, the refrigerant exit of outdoor heat exchanger is connected with the refrigerant inlet of first indoor heat exchanger by the first throttle element, the refrigerant exit of first indoor heat exchanger is connected with the 4th interface of cross valve, the 3rd interface of cross valve is communicated with low-pressure liquid storing tank, and low-pressure liquid storing tank is communicated with the refrigerant inlet of first compressor and second compressor.
Be provided with the first oil return capillary between described first oil eliminator and first compressor, the first oil return capillary, one end is connected with first oil eliminator, and the other end is connected with the refrigerant inlet of first compressor.
Be provided with the second oil return capillary between described second oil eliminator and second compressor, the second oil return capillary, one end is connected with second oil eliminator, and the other end is connected with the refrigerant inlet of second compressor.
Described off-premises station comprises two compression units, and indoor set comprises two indoor heat exchangers and two restricting elements, and two compression units are communicated with two indoor heat exchangers respectively, and two indoor heat exchangers are installed in the indoor set side by side.
The utility model has only the compression unit of an indoor set and a plurality of off-premises stations, each compression unit comprises the compressor of two parallel connections, each compression unit is formed a relatively independent refrigeration system, can regulate the unlatching number of compression unit in the off-premises station according to the actual loading situation, make working capacity and actual loading coupling.
When the utility model used, the compression unit of a plurality of off-premises stations can be opened in timesharing, and the compressor in each compression unit also timesharing is opened.Independent operating does not disturb mutually between each refrigeration system, has increased system reliability; The timesharing of compressor starts to reduce to be impacted electrical network; Adopt a plurality of compression unit designs to make that the off-premises station volume is little, make things convenient for the off-premises station installation and transportation, save cost more.
Description of drawings
Fig. 1 is the utility model one example structure schematic diagram.
Among the figure: 1 is first compressor, and 2 is second compressor, and 3 is the first oil return capillary, 4 is the second oil return capillary, and 5 is first oil eliminator, and 6 is second oil eliminator, 7 is first check valve, and 8 is second check valve, and 9 is cross valve, 10 is outdoor heat exchanger, and 11 is the first throttle element, and 12 is first indoor heat exchanger, 13 is fluid reservoir, 14 is second restricting element, and 15 is second indoor heat exchanger, and 20 is compression unit.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is further described.
Referring to Fig. 1, this large-scale air-cooled ducted air conditioner unit, comprise off-premises station and indoor set, off-premises station comprises two compression units 20, indoor set comprises two indoor heat exchangers 12 and two restricting elements 11, two compression units are communicated with two indoor heat exchangers respectively, and two indoor heat exchangers 12 are installed in the indoor set side by side.These two compression units form two non-interfering refrigeration systems respectively.
Each compression unit comprises first compressor 1 and second compressor 2, the refrigerant exit of first compressor is communicated with first check valve 7 by first oil eliminator 5, the refrigerant exit of second compressor is communicated with second check valve 8 by second oil eliminator 6, be connected with first interface of cross valve 9 after the outlet parallel connection of the outlet of first check valve and second check valve, second interface of cross valve is connected with the refrigerant of outdoor heat exchanger 10 inlet, the refrigerant exit of outdoor heat exchanger is connected with the refrigerant inlet of first indoor heat exchanger 12 by first throttle element 11, the refrigerant exit of first indoor heat exchanger is connected with the 4th interface of cross valve, the 3rd interface of cross valve is communicated with low-pressure liquid storing tank 13, and low-pressure liquid storing tank 13 is communicated with the refrigerant inlet of first compressor and second compressor.
Be provided with the first oil return capillary, 3, the first oil return capillaries, 3 one ends between first oil eliminator 5 and first compressor 1 and be connected with first oil eliminator 5, the other end is connected with the refrigerant inlet of first compressor 1.Be provided with the second oil return capillary, 4, the second oil return capillaries, 4 one ends between second oil eliminator 6 and second compressor 2 and be connected with second oil eliminator 6, the other end is connected with the refrigerant inlet of second compressor 2.
Under refrigeration mode, cross valve is closed, and refrigerant flows to and is following order: compressor, oil eliminator, check valve, cross valve, outdoor heat exchanger, interior machine throttle capillary tube, indoor and outdoor heat exchanger, cross valve, low-pressure liquid storing tank and compressor.A plurality of system units are independent mutually, do not disturb mutually.
Under heating mode, this moment, cross valve was opened, and refrigerant flows to and is following order: compressor, oil eliminator, check valve, cross valve, indoor and outdoor heat exchanger, interior machine throttle capillary tube, outdoor heat exchanger, cross valve, low-pressure liquid storing tank and compressor.A plurality of system units are independent mutually, do not disturb mutually.
Claims (4)
1. one kind large-scale air-cooled ducted air conditioner unit, comprise off-premises station and indoor set, wherein indoor set comprises one or above indoor heat exchanger (12) and one or above restricting element (11), it is characterized in that off-premises station comprises one and above compression unit (20), each compression unit comprises first compressor (1) and second compressor (2), the refrigerant exit of first compressor is communicated with first check valve (7) by first oil eliminator (5), the refrigerant exit of second compressor is communicated with second check valve (8) by second oil eliminator (6), be connected with first interface of cross valve (9) after the outlet parallel connection of the outlet of first check valve and second check valve, second interface of cross valve is connected with the refrigerant inlet of outdoor heat exchanger (10), the refrigerant exit of outdoor heat exchanger is connected with the refrigerant inlet of first indoor heat exchanger (12) by first throttle element (11), the refrigerant exit of first indoor heat exchanger is connected with the 4th interface of cross valve, the 3rd interface of cross valve is communicated with low-pressure liquid storing tank (13), and low-pressure liquid storing tank (13) is communicated with the refrigerant inlet of first compressor and second compressor.
2. according to the described large-scale air-cooled ducted air conditioner unit of claim 1, it is characterized in that being provided with between described first oil eliminator and first compressor first oil return capillary (3), the first oil return capillary, one end is connected with first oil eliminator, and the other end is connected with the refrigerant inlet of first compressor.
3. according to the described large-scale air-cooled ducted air conditioner unit of claim 1, it is characterized in that being provided with between described second oil eliminator and second compressor second oil return capillary (4), the second oil return capillary, one end is connected with second oil eliminator, and the other end is connected with the refrigerant inlet of second compressor.
4. according to the described large-scale air-cooled ducted air conditioner unit of claim 1, it is characterized in that described off-premises station comprises two compression units (20), indoor set comprises two indoor heat exchangers (12) and two restricting elements (11), two compression units are communicated with two indoor heat exchangers respectively, and two indoor heat exchangers (12) are installed in the indoor set side by side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202052617U CN201318754Y (en) | 2008-12-11 | 2008-12-11 | Large ducted machine unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202052617U CN201318754Y (en) | 2008-12-11 | 2008-12-11 | Large ducted machine unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201318754Y true CN201318754Y (en) | 2009-09-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202052617U Expired - Fee Related CN201318754Y (en) | 2008-12-11 | 2008-12-11 | Large ducted machine unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201318754Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102563976A (en) * | 2012-02-01 | 2012-07-11 | 美的集团有限公司 | Oil return system of compressor |
| CN103206757A (en) * | 2013-04-09 | 2013-07-17 | 林开生 | Double-circulation constant temperature-humidity air-conditioner and control device thereof |
| CN112797598A (en) * | 2020-12-30 | 2021-05-14 | 宁波奥克斯电气股份有限公司 | Indoor unit control method and device of multi-connected air conditioner and air conditioner |
-
2008
- 2008-12-11 CN CNU2008202052617U patent/CN201318754Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102563976A (en) * | 2012-02-01 | 2012-07-11 | 美的集团有限公司 | Oil return system of compressor |
| CN103206757A (en) * | 2013-04-09 | 2013-07-17 | 林开生 | Double-circulation constant temperature-humidity air-conditioner and control device thereof |
| CN112797598A (en) * | 2020-12-30 | 2021-05-14 | 宁波奥克斯电气股份有限公司 | Indoor unit control method and device of multi-connected air conditioner and air conditioner |
| CN112797598B (en) * | 2020-12-30 | 2022-07-26 | 宁波奥克斯电气股份有限公司 | Indoor unit control method and device of multi-connected air conditioner and air conditioner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: MIDEA GROUP CO., LTD. Free format text: FORMER OWNER: MEIDI ELECTRIC APPLIANCES CO., LTD., GUANGDONG Effective date: 20140113 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 528300 FOSHAN, GUANGDONG PROVINCE TO: 528311 FOSHAN, GUANGDONG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20140113 Address after: 528311 Guangdong, Foshan, Beijiao, the United States, the United States and the United States on the avenue of the United States, the headquarters of the United States building B floor, District, 26-28 Patentee after: Midea Group Co., Ltd. Address before: 528300 Penglai Road, Beijiao Town, Shunde District, Guangdong, Foshan Patentee before: Meidi Electric Appliances Co., Ltd., Guangdong |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090930 Termination date: 20161211 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |