CN106288470A - Fully-closed vortex twin-stage low temperature unit - Google Patents
Fully-closed vortex twin-stage low temperature unit Download PDFInfo
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- CN106288470A CN106288470A CN201510309753.5A CN201510309753A CN106288470A CN 106288470 A CN106288470 A CN 106288470A CN 201510309753 A CN201510309753 A CN 201510309753A CN 106288470 A CN106288470 A CN 106288470A
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- compressor
- mixing drum
- intermediate mixing
- stage
- low temperature
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Abstract
The present invention relates to a kind of fully-closed vortex twin-stage low temperature unit, including electric cabinet, two stage compressor, one split-compressor, reservoir and oil eliminator, the exhaustor of said two stage compressor is respectively communicated with the collector of horizontally set, this collector is coaxially connected with intermediate mixing drum, this intermediate mixing drum will pass through the air entry of the pressure duct input split-compressor that vertically connection is arranged after the high-pressure gaseous refrigerant hybrid cooling of input, the air vent of this split-compressor connects the input port of oil eliminator, the delivery outlet of this oil eliminator connects condenser, described intermediate mixing drum connects charge air cooler, described stage compressor and split-compressor are scroll compressor；Described intermediate mixing drum is arranged on the rear portion of I and II compressor.The present invention make original can only evaporating temperature-20 DEG C use unit expand at evaporating temperature-40 DEG C use, Energy Efficiency Ratio (COP) reaches 3.87, compared with single-stage refrigeration unit efficiency improve 30%.
Description
Technical field
The invention belongs to refrigeration technology field, especially a kind of fully-closed vortex twin-stage low temperature unit.
Background technology
In existing freezing cold storage refrigeration system, generally use single-stage compressor, but single-stage compressor is dragging down temperature time system
Cold scope is little, compression ratio is high and runs often in limiting condition, so greatly reduces the compressor life-span, improves maintenance rate,
And power consumption is big.
Traditional low temperature unit there is a problem in that: 1, the overall dimensions of Spiral Lobe Refrigeration Compressor is big, takies bigger space.
2, the intermediate mixing drum of unit is typically mounted at the front portion of compressor so that the maintenance of compressor is complicated.3, intermediate mixing drum holds
Easily put aside more oils and fats, thus affect it and normally work.4, the end at whole unit installs valve, changes reservoir outfan
Filter time, the cold-producing medium of whole unit all need to be reclaimed, not only lose time, and the loss of cold-producing medium is big.
Through retrieval, finds one patent document relevant to present patent application: one single stage compress cryogenic refrigerating system,
Notification number (CN103868267A), this patent disclosure is: include compressor, the input of described compressor and first
The outfan of gas-liquid separator connects, and its outfan is connected with condenser；The outfan of described condenser and the second gas-liquid separator
Input connect, the first outfan of described second gas-liquid separator is connected to the of the first heat exchanger by the first expansion valve
One input, the first outfan of described first heat exchanger is connected to the input of described first gas-liquid separator.
Being contrasted by technical characteristic, there is relatively big difference with present patent application in document disclosed above in technical scheme.
Summary of the invention
It is an object of the invention to overcome the deficiencies in the prior art, it is provided that a kind of compact conformation, the fully-closed vortex of good refrigeration effect
Twin-stage low temperature unit.
The solution of the present invention is achieved in that
A kind of fully-closed vortex twin-stage low temperature unit, including electric cabinet, two stage compressor, split-compressor, liquid storages
Device and oil eliminator, the exhaustor of said two stage compressor is respectively communicated with the collector of horizontally set, and this collector mixes with centre
Conjunction bucket is coaxially connected, the high pressure that this intermediate mixing drum will be arranged by vertical connection after the high-pressure gaseous refrigerant hybrid cooling of input
The air entry of pipeline input split-compressor, the air vent of this split-compressor connects the input port of oil eliminator, this oil eliminator
Delivery outlet connect condenser, described intermediate mixing drum connect charge air cooler, described stage compressor and split-compressor are vortex
Formula compressor；Described intermediate mixing drum is arranged on the rear portion of I and II compressor.
And, described intermediate mixing drum with the attachment structure of pressure duct is: the one end of described pressure duct be radially inserted in
Between in tempering tank, the pressure duct sidewall being positioned at intermediate mixing drum inner bottom part is shaped with a spill port.
And, a diameter of 5-6 millimeter of described spill port.
And, the pressure duct end being inlaid in intermediate mixing drum is inclined-plane.
And, the pipeline of described reservoir outlet is installed filter, the pipeline of this filter outlet end is installed a ball valve.
And, the diameter of described intermediate mixing drum is more than the diameter of collector.
Advantages of the present invention and good effect be:
Compression process is divided into the compression of one-level low pressure and two grades of high pressure compressed two parts, the refrigeration that the compression of one-level low pressure is discharged by the unit
Agent temperature after the cooling of intermediate mixing drum is reduced to the saturation temperature under this pressure, subsequently into two grades of high pressure compressed parts
In split-compressor, thus reduce two grades of high pressure compressor portion suction temperatures, improve the operation of split-compressor greatly
Operating mode, it is to avoid problem during single-stage refrigeration cycle during low temperature.The present invention make original can only evaporating temperature-20 DEG C use
Unit expands to use at evaporating temperature-40 DEG C, considerably increases the range of unit, and Energy Efficiency Ratio (COP) reaches 3.87,
Efficiency improves 30% compared with single-stage refrigeration unit.
Accompanying drawing explanation
Fig. 1 is the perspective view of the present invention；
Fig. 2 is the rearview of Fig. 1；
Fig. 3 is the intermediate mixing drum connection sectional view with pressure duct of the present invention.
Detailed description of the invention
The invention will be further described below in conjunction with the accompanying drawings and by specific embodiment.
A kind of fully-closed vortex twin-stage low temperature unit, as shown in Figure 1 and Figure 2, including 5, two stage compressor 4 of electric cabinet,
One split-compressor 2, reservoir 8 and oil eliminator 1, the exhaustor of said two stage compressor is respectively communicated with and laterally sets
The collector 9 put, this collector is coaxially connected with intermediate mixing drum 3, and this intermediate mixing drum is by the high-pressure gaseous refrigerant mixing of input
Inputted the air entry of split-compressor after cooling by the pressure duct 10 that vertically connection is arranged, the air vent of this split-compressor is even
Connecing the input port of oil eliminator, the delivery outlet of this oil eliminator connects condenser (not shown), and described intermediate mixing drum is even
Connect charge air cooler 11.
1, described stage compressor and split-compressor are scroll compressor, and its advantage is that noise is little, reliability and durability, takes up an area
Area is little, energy consumption is low.
2, described intermediate mixing drum is arranged on the rear portion of I and II compressor, the most attractive in appearance, it is most important that compressor maintenance side
Just.
3, described intermediate mixing drum and the attachment structure of pressure duct, as shown in Figure 3:
The one end of described pressure duct is radially inserted in intermediate mixing drum, and the high-voltage tube terminal being inlaid in intermediate mixing drum
Portion is inclined-plane, its objective is to increase the area sucking high-pressure gaseous refrigerant, is positioned at the high-voltage tube trackside of intermediate mixing drum inner bottom part
Wall is shaped with a spill port 12, a diameter of 5-6 millimeter of this spill port, and its effect is to suck a small amount of oil in intermediate mixing drum
Fat enters in reservoir by pipeline after being discharged by spill port, puts aside substantial amounts of oils and fats, be effectively ensured in preventing intermediate mixing drum
Whole set steady, run reliably.
4, filter 6 is installed on the pipeline of described reservoir outlet, the pipeline of this filter outlet end is installed a ball valve 7.Logical
Cross and ball valve is arranged at the port of export of filter so that refrigerant-recovery amount is greatly reduced, be effectively improved work efficiency, and system
The loss of cryogen is little.
5, the diameter of described intermediate mixing drum is more than the diameter of collector, effectively reduces and flows into tempering tank inner high voltage gaseous refrigerant
Flow velocity.
Advantages of the present invention effect is:
1, the unit uses twin-stage scroll compressor kind of refrigeration cycle, makes original unit extension that can only use evaporating temperature-20 DEG C
Use at evaporating temperature-40 DEG C, considerably increase the range of unit, and Energy Efficiency Ratio (COP) reaches 3.87, with list
Level refrigeration unit is compared efficiency and is improved 30%.
2, the intermediate mixing drum in the unit is arranged on the rear portion of I and II compressor, reasonable in design, is easy to compressor
Maintenance.
3, present configuration is simple, design science is reasonable, be skillfully constructed, and not only ensures stable, the reliability service of whole unit,
And it is convenient and swift to change filter, compact conformation, good refrigeration effect.
It is emphasized that embodiment of the present invention is illustrative rather than determinate, therefore the present invention includes also
It is not limited to the embodiment described in detailed description of the invention, every is drawn according to technical scheme by those skilled in the art
Other embodiments, also belong to the scope of protection of the invention.
Claims (6)
1. a fully-closed vortex twin-stage low temperature unit, it is characterised in that: include electric cabinet, two stage compressor, one two
Level compressor, reservoir and oil eliminator, the exhaustor of said two stage compressor is respectively communicated with the collector of horizontally set,
This collector is coaxially connected with intermediate mixing drum, and this intermediate mixing drum passes through after the high-pressure gaseous refrigerant hybrid cooling of input vertically
The air entry of the pressure duct input split-compressor that connection is arranged, the air vent of this split-compressor connects the input of oil eliminator
Mouthful, the delivery outlet of this oil eliminator connects condenser, and described intermediate mixing drum connects charge air cooler, described stage compressor and two grades
Compressor is scroll compressor；Described intermediate mixing drum is arranged on the rear portion of I and II compressor.
Fully-closed vortex twin-stage low temperature unit the most according to claim 1, it is characterised in that: described intermediate mixing drum is with high
The attachment structure on pressure pipe road is: the one end of described pressure duct is radially inserted in intermediate mixing drum, is positioned at intermediate mixing drum
The pressure duct sidewall of bottom is shaped with a spill port.
Fully-closed vortex twin-stage low temperature unit the most according to claim 2, it is characterised in that: described spill port a diameter of
5-6 millimeter.
4. according to the fully-closed vortex twin-stage low temperature unit described in Claims 2 or 3, it is characterised in that: it is inlaid in middle mixing
Pressure duct end in Tong is inclined-plane.
Fully-closed vortex twin-stage low temperature unit the most according to claim 4, it is characterised in that: the pipe of described reservoir outlet
Filter is installed on road, the pipeline of this filter outlet end is installed a ball valve.
Fully-closed vortex twin-stage low temperature unit the most according to claim 5, it is characterised in that: described intermediate mixing drum straight
Footpath is more than the diameter of collector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510309753.5A CN106288470A (en) | 2015-06-08 | 2015-06-08 | Fully-closed vortex twin-stage low temperature unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510309753.5A CN106288470A (en) | 2015-06-08 | 2015-06-08 | Fully-closed vortex twin-stage low temperature unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106288470A true CN106288470A (en) | 2017-01-04 |
Family
ID=57659924
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510309753.5A Pending CN106288470A (en) | 2015-06-08 | 2015-06-08 | Fully-closed vortex twin-stage low temperature unit |
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| US20090193839A1 (en) * | 2008-02-06 | 2009-08-06 | Minoru Tsukamoto | Turbo compressor and refrigerator |
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| CN202792668U (en) * | 2012-09-17 | 2013-03-13 | 苏州必信空调有限公司 | Water chilling unit |
| US20130081424A1 (en) * | 2011-10-04 | 2013-04-04 | Yonghee Jang | Scroll compressor and air conditioner including the same |
| CN202885326U (en) * | 2012-10-31 | 2013-04-17 | 南京五洲制冷集团有限公司 | Double-unit twin-stage compression refrigerating unit |
| CN103673430A (en) * | 2012-09-17 | 2014-03-26 | 珠海格力电器股份有限公司 | Mixer for air supplement, compressor and air conditioning system |
| CN103868267A (en) * | 2012-12-17 | 2014-06-18 | 李书明 | Multi-compressor dual-grade compression low-temperature machine unit |
| CN203869359U (en) * | 2014-06-04 | 2014-10-08 | 南京金陵鸿博环境科技发展有限公司 | Hot-gas defrosting type digital scroll parallel unit |
| CN204705068U (en) * | 2015-06-08 | 2015-10-14 | 天津市丹华宏业制冷技术有限公司 | A kind of fully-closed vortex twin-stage low temperature unit |
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2015
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200943971Y (en) * | 2006-08-01 | 2007-09-05 | 北京市京科伦冷冻设备有限公司 | Refrigerating unit structure |
| CN101029782A (en) * | 2007-04-12 | 2007-09-05 | 武汉新世界制冷工业有限公司 | Dual-locomotive and dual-stage screw refrigerating compressor set |
| WO2009048463A1 (en) * | 2007-10-10 | 2009-04-16 | Carrier Corporation | Multi-stage refrigerant system with different compressor types |
| US20090193839A1 (en) * | 2008-02-06 | 2009-08-06 | Minoru Tsukamoto | Turbo compressor and refrigerator |
| US20130081424A1 (en) * | 2011-10-04 | 2013-04-04 | Yonghee Jang | Scroll compressor and air conditioner including the same |
| CN202581915U (en) * | 2012-05-25 | 2012-12-05 | 南京金陵鸿博环境科技发展有限公司 | Digital scroll paralleled unit |
| CN202792668U (en) * | 2012-09-17 | 2013-03-13 | 苏州必信空调有限公司 | Water chilling unit |
| CN103673430A (en) * | 2012-09-17 | 2014-03-26 | 珠海格力电器股份有限公司 | Mixer for air supplement, compressor and air conditioning system |
| CN202885326U (en) * | 2012-10-31 | 2013-04-17 | 南京五洲制冷集团有限公司 | Double-unit twin-stage compression refrigerating unit |
| CN103868267A (en) * | 2012-12-17 | 2014-06-18 | 李书明 | Multi-compressor dual-grade compression low-temperature machine unit |
| CN203869359U (en) * | 2014-06-04 | 2014-10-08 | 南京金陵鸿博环境科技发展有限公司 | Hot-gas defrosting type digital scroll parallel unit |
| CN204705068U (en) * | 2015-06-08 | 2015-10-14 | 天津市丹华宏业制冷技术有限公司 | A kind of fully-closed vortex twin-stage low temperature unit |
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Application publication date: 20170104 |