CN107631526A - A kind of Large Copacity gas-liquid separation suction manifold applied to refrigeration unit - Google Patents
A kind of Large Copacity gas-liquid separation suction manifold applied to refrigeration unit Download PDFInfo
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- CN107631526A CN107631526A CN201711011019.6A CN201711011019A CN107631526A CN 107631526 A CN107631526 A CN 107631526A CN 201711011019 A CN201711011019 A CN 201711011019A CN 107631526 A CN107631526 A CN 107631526A
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Abstract
The present invention relates to a kind of Large Copacity gas-liquid separation suction manifold applied to refrigeration unit, including evaporator muffler, compressor discharge and compressor suction duct, the evaporator muffler and compressor suction duct are from top to bottom radially into middle part or top or middle and upper part in compressor discharge vertically, compressor suction duct lower end mouth of pipe in compressor discharge is higher than evaporator muffler lower end mouth of pipe in compressor discharge, oil return tubule lower end is from top to bottom radially into compressor discharge inner bottom part vertically, the compressor suction duct includes the vertical section being sequentially connected, turn to section and suction out section, vertical section, the direction for turning to section and sucking-off section is uniformly identical, vertical section lower end is stretched into compressor discharge, the sucking-off section of non-vertical section of connection compressor suction duct of oil return tubule.
Description
Technical field
The present invention relates to a kind of refrigerating plant, specifically a kind of Large Copacity gas-liquid separation air-breathing applied to refrigeration unit
Collector.
Background technology
In the refrigeration system of dry type evaporation, evaporator is controlled by heating power or electric expansion valve, can be incited somebody to action under normal circumstances
Liquid 100% in evaporator gasifies, and sucks back compressor.But under some disturbing factors, such as evaporated in last defrosing cycle
The frost on device surface does not melt thoroughly, switches back into frost layer knot in cooling cycle and obtains thicker, very big heat transfer heat is produced in air side
Resistance, the liquid evaporation in evaporator is influenceed, partially liq evaporation is endless, and compressor air suction mouth is flowed back to gas.In addition, pressure
When contracting machine compression refrigerant and exhaust, parts of lubricating oil can be in company with exhaust discharge compressor, into refrigeration system, finally also can be by
Absorbing gas belt returns compressor air entry.Therefore, be generally all designed with special gas-liquid separator in refrigerating plant, for by gas from
Separated in liquid, gas is directly sucked in compressor, and the mixture of lubricating oil and refrigerant liquid on air intake duct then by opening
Throttle orifice, control mixture inhalation flow, realize that refrigerant liquid and lubricating oil are eventually returned to compressor.
In multi-compressor head refrigeration unit in parallel, compressor shares a suction manifold, at this moment using special gas-liquid
Separator, can produce two problems, and first to be that set structure is controlled not compact, and second is the gas when only part head operates
Air-breathing tedge flow velocity is inadequate in liquid/gas separator, and band will not be deposited in the lubricating oil and refrigerant mixture of bottom.At this moment can be with
Design improvement directly is subject to suction manifold, realizes gas-liquid separation and oil return effect.Introduced in the first patent of invention of applicant
A kind of design of suction manifold, principle is that compressor air suction collector is inserted at the height of collector 1/2 ~ 2/3 from bottom, by siphon
Pipe oil suction.The structure is adapted to suction manifold square topology layout on the compressor, if suction manifold is below compressor not
It is easy to use.In addition, when accumulation liquid is close to compressor air suction branch pipe upper surface, liquid level fluctuates under air-flow drive, it is possible to
Compressor air suction branch pipe can be entered, it is meant that a part of space on collector top can not play gas liquid separating function, overall to store liquid
Capacity is small.
The content of the invention
, can be to greatest extent using empty inside collector object of the present invention is to provide a kind of new suction manifold design
Between, gas-liquid separation effect is realized, while again by siphon principle, the Large Copacity liquid refrigerant and lubricating oil that will be accumulated in collector
Mixture slowly sucks back compressor, the refrigeration unit especially suitable for Multi-compressor parallel.
The technical solution adopted by the present invention is：A kind of Large Copacity gas-liquid separation suction manifold applied to refrigeration unit, bag
Include evaporator muffler, compressor discharge and compressor suction duct, it is characterised in that：The evaporator muffler and compressor
Air intake duct is from top to bottom radially into middle part or top or middle and upper part, compressor suction duct in compressor discharge and pressed vertically
The lower end mouth of pipe is higher than evaporator muffler lower end mouth of pipe in compressor discharge in contracting machine discharge, and oil return tubule lower end is by upper
Compressor discharge inner bottom part is radially into vertically to lower, and the compressor suction duct includes vertical section, the steering being sequentially connected
Section and sucking-off section, the direction of vertical section, steering section and sucking-off section is uniformly identical, and vertical section lower end is stretched into compressor discharge,
The sucking-off section of non-vertical section of connection compressor suction duct of oil return tubule.
The oil return tubule is siphon pipe.
The gas-liquid mixture returned from evaporator muffler enters compressor discharge, because space becomes big, flow velocity suddenly
Reduce, liquid particles are heavier, fall in compressor gas collection bottom of the tube.In addition, liquid particles are because inertia ratio gas is big, also can edge
Original flow direction is down moved, and into liquid pool, and is not easy reverse flow into compressor suction duct thereon.Gas then enters compression
Machine air intake duct, sucked and compress by compressor.The liquid of accumulation produces fluid-tight to siphon pipe in compressor discharge, due to compressor
Suction, the pressure of large space is low in the pressure ratio compressors discharge at compressor air suction valve, under the promotion of this pressure difference, pressure
Liquid in contracting machine discharge just flows into compressor air suction mouth along oil return tubule.Because oil return tubule is thinner, the soakage of liquid
It is smaller, just it is atomized after sucking compressor in the gas of big flow, thus liquid hammer/oil will not be produced to the compression mechanism of compressor
Hit.Compressor suction duct is divided into the vertical section being sequentially connected, turns to section and suctions out section, non-vertical section of connection compression of oil return tubule
The sucking-off section of machine air intake duct, suctions out liquid when effectively can ensure gas by suctioning out section, while prevent liquid from passing through compressor
Air intake duct vertical section flows backwards, and improves and inhales air-liquid efficiency.
The beneficial effect that the present invention reaches is：1）The internal volume that suction manifold can be maximally utilized accumulates more return
Liquid.By calculating, using the collector of the design, its liquid storage content exceedes the liquid storage content of the special gas-liquid separator of equity, separation effect
Fruit is obvious；2）Compared with special gas-liquid separator, avoid inspiratory flow rate when Partial shrinkage machine is shut down and be not enough to carrying of liquids
The shortcomings that returning compressor；3）Be advantageous to refrigeration complete machine structure design of the suction manifold below compressor, and cause overall design
It is obvious compact.
Brief description of the drawings
Fig. 1 is schematic structural view of the invention.
In figure：Compressor discharge 1, evaporator muffler 2, compressor air suction, pipe 3, air intake duct vertical section 31, air intake duct
Section 32 is turned to, air intake duct suctions out section 33, oil return tubule 4, oil return tubule vertical section 41, non-vertical section 42 of oil return tubule.
Embodiment
It is described further below in conjunction with drawings and examples.
Shown in Fig. 1：A kind of Large Copacity gas-liquid separation suction manifold applied to refrigeration unit include evaporator muffler 2,
Compressor discharge 1, compressor suction duct 3 and oil return tubule 4, evaporator muffler 2 and compressor suction duct 3 are from top to bottom
It is vertical to be radially into middle part or top or middle and upper part in compressor discharge 1, under compressor suction duct is in compressor discharge
End pipe mouth is higher than evaporator muffler lower end mouth of pipe in compressor discharge, and compressor suction duct includes the air-breathing being sequentially connected
Pipe vertical section, air intake duct turn to section and air intake duct suctions out section, and air intake duct vertical section, air intake duct turn to section and air intake duct suctions out section
Direction is uniformly identical, and air intake duct vertical section lower end is stretched into compressor discharge, under the oil return tubule vertical section 41 of oil return tubule 4
End is from top to bottom radially into the inner bottom part of compressor discharge 1, non-vertical section 42 connection compressor suction duct of oil return tubule vertically
Air intake duct suction out section 33.
Claims (2)
1. a kind of Large Copacity gas-liquid separation suction manifold applied to refrigeration unit, including evaporator muffler, compressor gas collection
Pipe and compressor suction duct, it is characterised in that：The evaporator muffler and compressor suction duct from top to bottom it is vertical radially
Middle part or top or middle and upper part, compressor suction duct lower end mouth of pipe in compressor discharge in compressor discharge is stretched into be higher than
Evaporator muffler lower end mouth of pipe in compressor discharge, oil return tubule lower end are from top to bottom radially into compressor collection vertically
Tracheae inner bottom part, the compressor suction duct include the vertical section, steering section and sucking-off section being sequentially connected, vertical section, turn to section
Uniformly identical with the direction of sucking-off section, vertical section lower end is stretched into compressor discharge, non-vertical section of connection pressure of oil return tubule
The sucking-off section of contracting machine air intake duct.
2. a kind of Large Copacity gas-liquid separation suction manifold applied to refrigeration unit according to claim 1, it is characterized in that：
The oil return tubule is siphon pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711011019.6A CN107631526A (en) | 2017-10-25 | 2017-10-25 | A kind of Large Copacity gas-liquid separation suction manifold applied to refrigeration unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711011019.6A CN107631526A (en) | 2017-10-25 | 2017-10-25 | A kind of Large Copacity gas-liquid separation suction manifold applied to refrigeration unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107631526A true CN107631526A (en) | 2018-01-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711011019.6A Pending CN107631526A (en) | 2017-10-25 | 2017-10-25 | A kind of Large Copacity gas-liquid separation suction manifold applied to refrigeration unit |
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| Country | Link |
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| CN (1) | CN107631526A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109631430A (en) * | 2018-11-28 | 2019-04-16 | 青岛海尔空调器有限总公司 | A kind of liquid receiver for compressor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001033113A (en) * | 1999-07-21 | 2001-02-09 | Daikin Ind Ltd | Refrigeration system |
| CN101464081A (en) * | 2008-12-31 | 2009-06-24 | 李世岗 | Siphon type gas-liquid separation and oil return apparatus in parallel compression refrigeration units |
| CN203719223U (en) * | 2014-03-13 | 2014-07-16 | 山东神舟制冷设备有限公司 | Frozen digital scroll parallel unit |
| 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 |
| CN207487191U (en) * | 2017-10-25 | 2018-06-12 | 江苏科立德制冷设备有限公司 | A kind of large capacity gas-liquid separation suction manifold applied to refrigeration unit |
-
2017
- 2017-10-25 CN CN201711011019.6A patent/CN107631526A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001033113A (en) * | 1999-07-21 | 2001-02-09 | Daikin Ind Ltd | Refrigeration system |
| CN101464081A (en) * | 2008-12-31 | 2009-06-24 | 李世岗 | Siphon type gas-liquid separation and oil return apparatus in parallel compression refrigeration units |
| CN203719223U (en) * | 2014-03-13 | 2014-07-16 | 山东神舟制冷设备有限公司 | Frozen digital scroll parallel unit |
| 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 |
| CN207487191U (en) * | 2017-10-25 | 2018-06-12 | 江苏科立德制冷设备有限公司 | A kind of large capacity gas-liquid separation suction manifold applied to refrigeration unit |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109631430A (en) * | 2018-11-28 | 2019-04-16 | 青岛海尔空调器有限总公司 | A kind of liquid receiver for compressor |
| CN109631430B (en) * | 2018-11-28 | 2020-11-03 | 青岛海尔空调器有限总公司 | Liquid storage device for compressor |
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| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180126 |
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| WD01 | Invention patent application deemed withdrawn after publication |