CN201209980Y - Energy-conserving type full liquid type evaporator - Google Patents
Energy-conserving type full liquid type evaporator Download PDFInfo
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- CN201209980Y CN201209980Y CNU2008200605536U CN200820060553U CN201209980Y CN 201209980 Y CN201209980 Y CN 201209980Y CN U2008200605536 U CNU2008200605536 U CN U2008200605536U CN 200820060553 U CN200820060553 U CN 200820060553U CN 201209980 Y CN201209980 Y CN 201209980Y
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Abstract
The utility relates to an energy-saving type flooded type evaporator. The evaporator of existing technology has many defects of uneven liquid separation, insufficient gasification process and reduced heat transfer performance. The utility comprises a cylinder, a high interface for oil return, a high interface for oil return, a inhalation dispenser, a inhalation tube, an evaporation pipe bundle, a support board, a liquid dispenser, a intake tube, a tube sheet and secondary refrigerant inlet or outlet. The inhalation dispenser and evaporation tube bundle constitutes an enough big phase-change gasification space; the refrigerant flows uniformly into inhalation tube from the inhalation dispenser in a low flowing speed; high and low oil return interface can effectively returns oil. The flooded type evaporator of the utility can dispense liquid of vapor-liquid refrigerant mixture uniformly, gasify fully and promote energy efficiency and save energy 10-15% than traditional flooded type evaporator; refrigerant has same boiling kinetic energy along cylinder length and breadth.
Description
Technical field
The utility model relates to a kind of heat exchanger apparatus, particularly relates to a kind of flooded evaporator in refrigerated air-conditioning system.
Background technology
Critical piece in the refrigerated air-conditioning system comprises: compressor, oil eliminator, condenser, reservoir, expansion valve, pipeline and control panels such as evaporimeter.Its kind of refrigeration cycle process is that cold-producing medium and the refrigeration oil gas phase mixture of high pressure superheater that compressor is discharged carries out after gas-liquid two-phase separates through oil eliminator, cold-producing medium enters in the condenser again and is condensed into high-pressure sub-cooled liquid by the heat absorption of normal temperature refrigerating medium, change into the low area overheat steam and sucked by compressor through putting hot gas by the normal temperature refrigerating medium in evaporimeter after the expansion valve throttling again, circulation realizes process of refrigerastion and so forth.Wherein flooded evaporator is to the energy-saving and cost-reducing central role that plays key of whole refrigeration air-conditioner.
In refrigerated air-conditioning system, the prior art flooded evaporator that generally uses remains the defective aspect following at present: 1) at first owing to separatory in the evaporimeter is inhomogeneous, cause the gas-liquid refrigerant mixture inhomogeneous along the kinetic energy of the length of cylinder and width boiling, make the gas-liquid cold-producing medium insufficient, cause heat transfer property to descend through the gasification after the heat exchange; 2) secondly because air-breathing unreasonable distribution causes back the liquid phenomenon easily, cause efficiency to reduce; 3) since on the cylinder position of oil return interface unreasonable, make the refrigeration air-conditioner unit when operation at part load because liquid level reduces and effectively oil return, lead reduction of system efficiency and compressor oil starvation and increase energy consumption.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art, it is the purpose of this utility model place that a kind of energy-saving flooded evaporator is provided.This flooded evaporator is a kind of simple in structure, and vapour-liquid refrigerant mixture separatory is even, the air-breathing liquid that do not return, the unit effective energy-saving flooded evaporator of oil return when operation at part load.The technical solution of the utility model is that knockout, steam-generating bank, air-breathing distributor are installed in the horizontal steel cylinder from the bottom up in proper order, to leave enough big phase transformation gasification space between air-breathing distributor and the steam-generating bank, cold-producing medium can fully be gasified through entering the phase transformation gasification space after the refrigerating medium heat exchange.Cold-producing medium after the gasification is flowed to air intake duct equably and is entered compressor by a plurality of airflow holes on the air-breathing distributor, and a small amount of not refrigerant liquid of gasification is blocked by air-breathing distributor.Refrigeration oil then forms liquid level oil slick layer in the process of boiling, enter compressor by the oil return interface by the high pressure injection.The technical solution of the utility model is come specific implementation by following technical measures: a kind of energy-saving flooded evaporator is characterized in that it comprises that cylinder 1, the low interface 2 of oil return, oil return high interface 3, air-breathing distributor 4, air intake duct 5, steam-generating bank 6, support plate 7, knockout 8, feed tube 9, tube sheet 10 and refrigerating medium import and export 11.Wherein: the cross section is the below that trapezoidal knockout 8 is installed in horizontal steel cylinder 1 along its length, and connect with the feed tube 9 that passes cylinder 1 bottom and to communicate, form the branch sap cavity of a relative closure, this minute sap cavity length than the short 5-10% of the length of cylinder 1, on knockout 8 both sides trapezoidal, be evenly equipped with a plurality of pilot holes on plane and the inclined-plane, the 1.2-2 that these pilot hole cross section sums should be feed tube 9 latus rectums doubly makes cold-producing medium be uniformly distributed in the steam-generating bank 6 with constant flow velocity along the length and the width of cylinder 1; The top of knockout 8 is array steam-generating bank 6, and steam-generating bank 6 is fixed with two ends tube sheet 10 expanded joints, and is middle with support plate 7 supports; The cross section is that trapezoidal air-breathing distributor 4 is installed in the top in the cylinder 1, and connect with the air intake duct 5 that passes cylinder 1 top and to communicate, the length of air-breathing distributor 4 is identical with the length of cylinder 1, leaves enough big phase transformation gasification space between air-breathing distributor 4 and the steam-generating bank 6; Be evenly distributed with a plurality of airflow holes on trapezoidal two inclined-planes of air-breathing distributor 4, the cross section sum of these airflow holes should be latus rectum 2-5 a times of air intake duct 5, in order that make the cold-producing medium after the gasification enter air intake duct 5 with lower flow velocity equably by air-breathing distributor 4; The trapezoidal bottom plane of air-breathing distributor 4 also has retaining liquid function; Low interface 2 of oil return and the high interface 3 of oil return are arranged in the liquid level oil slick layer in the cylinder 1, and making liquid level oil slick layer in the cylinder 1 not have the height of sinking can both timely and effective oil return or low; Refrigerating medium import and export 11 are separately positioned on the left and right two ends of cylinder 1, also can all be arranged on the same end of cylinder 1.
Described low pressure vapour-liquid cold-producing medium and refrigeration oil mixture enter knockout 8 by feed tube 9, mixing vapour-liquid is uniformly distributed in the steam-generating bank 6 with constant flow velocity through the pilot hole on the knockout 8, make cold-producing medium identical with the kinetic energy of width boiling, enter the phase transformation gasification space after the heat exchange of cold-producing medium process refrigerating medium and fully gasify along the length of cylinder 1.Cold-producing medium after the gasification is flowed to air intake duct 5 equably and is entered compressor by the airflow hole on the air-breathing distributor 4, and a small amount of not refrigerant liquid of gasification is blocked by air-breathing distributor 4.Refrigeration oil then forms liquid level oil slick layer in the process of boiling, enter compressor by the oil return interface by the high pressure injection.
Good effect of the present utility model is: compare with traditional flooded evaporator, vapour-liquid refrigerant mixture separatory of the present utility model is even, cold-producing medium is identical with the kinetic energy of width boiling along the length of cylinder, and gasification is abundant, has improved heat transfer property.The air-breathing liquid that do not return has improved efficiency.Unit is effectively oil return when operation at part load, has reduced energy consumption.Than the energy-conservation 10-15% of traditional flooded evaporator.
Description of drawings
The radially sectional structure schematic diagram of Fig. 1, the energy-saving flooded evaporator embodiment of the utility model.
The axial section structural representation of Fig. 2, the energy-saving flooded evaporator embodiment of the utility model.
Each legend mark is represented following meaning respectively in the accompanying drawing:
The low interface of 1----cylinder, 2----oil return, the high interface of 3----oil return, the air-breathing distributor of 4----,
5----air intake duct, 6----tube bank, 7----support plate, 8----knockout,
9----feed tube, 10----tube sheet, 11----refrigerating medium are imported and exported
The specific embodiment
Below in conjunction with accompanying drawing 1,2 and embodiment the utility model is further specified:
Present embodiment be a kind of be applied on the refrigeration air-conditioner that model is EMZ34HF, refrigerating capacity is the energy-saving flooded evaporator of 650kW.By a kind of energy-saving flooded evaporator that the structure of Fig. 1 and Fig. 2 assembles, comprise that length is that 3400mm, external diameter are that the low interface 2 of steel cylinder 1, oil return, the high interface 3 of oil return, air-breathing distributor 4, the latus rectum of Φ 516mm is that steel air intake duct 5, steam-generating bank 6, support plate 7, knockout 8, the latus rectum of DN100mm is that steel feed tube 9, tube sheet 10 and the refrigerating medium of DN40mm imports and exports 11.Wherein: the cross section is the below that trapezoidal knockout 8 is installed in horizontal cylinder 1 along its length, and connect with the feed tube 9 that passes cylinder 1 bottom and to communicate, form the branch sap cavity of a relative closure, this minute sap cavity length than the short 170mm of the length of cylinder 1, on knockout both sides trapezoidal, be distributed with number row pilot holes on plane and the inclined-plane, these pilot hole cross section sums are 1.5 times of feed tube 9 latus rectums, and cold-producing medium is uniformly distributed in the steam-generating bank 6 with constant flow velocity along the length and the width of cylinder 1; The top of knockout 9 is array steam-generating bank 6, and steam-generating bank 6 is fixed with two ends tube sheet 10 expanded joints, and is middle with support plate 7 supports; The cross section is that trapezoidal air-breathing distributor 4 is installed in the top in the cylinder 1, and connect with the air intake duct 5 that passes cylinder 1 top and to communicate, the length of air-breathing distributor 4 is identical with the length of cylinder 1, leaves enough big phase transformation gasification space between air-breathing distributor 4 and the steam-generating bank 6; Be evenly distributed with a plurality of airflow holes on trapezoidal two inclined-planes of air-breathing distributor 4, the cross section sum of these airflow holes should be 3 times of the latus rectums of air intake duct 5, in order that make the cold-producing medium after the gasification enter air intake duct 5 with lower flow velocity equably by air-breathing distributor 4; The trapezoidal bottom plane of air-breathing distributor 4 also has retaining liquid function; Low interface 2 of oil return and the high interface 3 of oil return are arranged in the liquid level oil slick layer in the cylinder 1, and making liquid level oil slick layer in the cylinder 1 not have the height of sinking can both timely and effective oil return or low; Refrigerating medium import and export 11 are separately positioned on the left and right two ends of cylinder 1.
Present embodiment can be than the energy-conservation 10-15% of traditional flooded evaporator.
Claims (5)
1. energy-saving flooded evaporator, it is characterized in that it comprises cylinder [1], interface [2] is hanged down in oil return, the high interface of oil return [3], air-breathing distributor [4], air intake duct [5], steam-generating bank [6], support plate [7], knockout [8], feed tube [9], tube sheet [10] and refrigerating medium are imported and exported [11], wherein: the cross section is the below that trapezoidal knockout [8] is installed in horizontal steel cylinder [1] along its length, and connect with the feed tube [9] that passes cylinder [1] bottom and to communicate, form the branch sap cavity of a relative closure, the separatory cavity length is shorter than cylinder [1], trapezoidal going up on plane and the inclined-plane in knockout [8] both sides is evenly equipped with a plurality of pilot holes, these pilot hole cross section sums should be equal to or greater than the latus rectum of feed tube [9], and cold-producing medium is uniformly distributed in the steam-generating bank [6] with constant flow velocity along the length and the width of cylinder [1]; The top of knockout [8] is array steam-generating bank [6], and steam-generating bank [6] is fixed with two ends tube sheet [10] expanded joint, and is middle with support plate [7] support; The cross section is that trapezoidal air-breathing distributor [4] is installed in the top in the cylinder [1], and communicates with air intake duct [5] connection of passing cylinder [1] top, leaves the phase transformation gasification space between air-breathing distributor [4] and the steam-generating bank [6]; Be evenly distributed with a plurality of airflow holes on trapezoidal two inclined-planes of air-breathing distributor [4], the cross section sum of these airflow holes should be greater than the latus rectum of air intake duct [5], in order that make the cold-producing medium after the gasification enter air intake duct [5] with lower flow velocity equably by air-breathing distributor [4]; The trapezoidal bottom surface of air-breathing distributor [4] also has retaining liquid function; Interface [2] is hanged down in oil return and the high interface of oil return [3] is arranged in the interior liquid level oil slick layer of cylinder [1], to guarantee timely and effective oil return; Refrigerating medium is imported and exported the left and right two ends that [11] are separately positioned on cylinder [1], also can all be arranged on the same end of cylinder [1].
2. energy-saving flooded evaporator according to claim 1 is characterized in that the length of branch sap cavity of the described relative closure of being made up of knockout [8] and cylinder [1] is shorter by 5 one 10% than the length of cylinder [1],
3. energy-saving flooded evaporator according to claim 1 is characterized in that the pilot hole on the described knockout [8], and these pilot hole cross section sums should be 1.2-2 times of feed tube [9] latus rectum,
4. energy-saving flooded evaporator according to claim 1 is characterized in that a plurality of airflow holes on the described air-breathing distributor [4], and the cross section sum of these airflow holes should be latus rectum 2-5 a times of air intake duct [5],
5. energy-saving flooded evaporator according to claim 1 is characterized in that the length of described air-breathing distributor [4] is identical with the length of cylinder [1],
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200605536U CN201209980Y (en) | 2008-05-13 | 2008-05-13 | Energy-conserving type full liquid type evaporator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200605536U CN201209980Y (en) | 2008-05-13 | 2008-05-13 | Energy-conserving type full liquid type evaporator |
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| CN201209980Y true CN201209980Y (en) | 2009-03-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU2008200605536U Expired - Lifetime CN201209980Y (en) | 2008-05-13 | 2008-05-13 | Energy-conserving type full liquid type evaporator |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102003851A (en) * | 2010-12-15 | 2011-04-06 | 广州联合冷热设备有限公司 | Flooded type evaporator structure |
| CN102042781A (en) * | 2010-12-02 | 2011-05-04 | 海尔集团公司 | Refrigerant distributing device |
| CN102052803A (en) * | 2010-12-13 | 2011-05-11 | 上海环球制冷设备有限公司 | Integrated condensing flooded evaporator device and using method thereof |
| CN102226606A (en) * | 2011-04-25 | 2011-10-26 | 浙江盾安人工环境股份有限公司 | Hydraulic filling type evaporation and condensation double-purpose heat exchanger for sewage source heat pump |
| CN103925748A (en) * | 2013-01-16 | 2014-07-16 | 珠海格力电器股份有限公司 | Flooded evaporator and water-cooled air conditioning unit with same |
| CN103925747A (en) * | 2013-01-16 | 2014-07-16 | 珠海格力电器股份有限公司 | Flooded evaporator and water-cooled air conditioning unit with same |
| CN103925746A (en) * | 2013-01-16 | 2014-07-16 | 珠海格力电器股份有限公司 | Flooded evaporator and water-cooled air conditioning unit with same |
| CN104457003A (en) * | 2013-09-12 | 2015-03-25 | 同方人工环境有限公司 | Water cooling cold water/heat pump set suitable for inland river ship |
| CN104654675A (en) * | 2015-02-10 | 2015-05-27 | 珠海格力电器股份有限公司 | Flooded evaporator and air conditioning unit |
| CN104791014A (en) * | 2014-01-22 | 2015-07-22 | 山西易通环能科技集团有限公司 | Oil-return device used for low-temperature waste-heat power generator sets |
| CN104949397A (en) * | 2014-03-28 | 2015-09-30 | 荏原冷热***株式会社 | Evaporator of turbine refrigerator and turbine refrigerator having evaporator |
| CN104976828A (en) * | 2014-04-01 | 2015-10-14 | 同方人工环境有限公司 | Sea ship flooded evaporator oil return device |
| JP2016539308A (en) * | 2013-12-05 | 2016-12-15 | リンデ アクチエンゲゼルシャフトＬｉｎｄｅ Ａｋｔｉｅｎｇｅｓｅｌｌｓｃｈａｆｔ | Heat exchanger with collecting passage for discharging liquid phase |
| CN110530066A (en) * | 2019-09-11 | 2019-12-03 | 上海工程技术大学 | Low pressure refrigerant flooded evaporator |
-
2008
- 2008-05-13 CN CNU2008200605536U patent/CN201209980Y/en not_active Expired - Lifetime
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102042781A (en) * | 2010-12-02 | 2011-05-04 | 海尔集团公司 | Refrigerant distributing device |
| CN102042781B (en) * | 2010-12-02 | 2012-09-05 | 海尔集团公司 | Refrigerant distributing device |
| CN102052803A (en) * | 2010-12-13 | 2011-05-11 | 上海环球制冷设备有限公司 | Integrated condensing flooded evaporator device and using method thereof |
| CN102052803B (en) * | 2010-12-13 | 2012-11-28 | 上海环球制冷设备有限公司 | Integrated condensing flooded evaporator device and using method thereof |
| CN102003851A (en) * | 2010-12-15 | 2011-04-06 | 广州联合冷热设备有限公司 | Flooded type evaporator structure |
| CN102226606A (en) * | 2011-04-25 | 2011-10-26 | 浙江盾安人工环境股份有限公司 | Hydraulic filling type evaporation and condensation double-purpose heat exchanger for sewage source heat pump |
| CN103925746B (en) * | 2013-01-16 | 2016-08-24 | 珠海格力电器股份有限公司 | Flooded evaporator and there is the Water-cooling type air conditioner unit of this evaporimeter |
| CN103925746A (en) * | 2013-01-16 | 2014-07-16 | 珠海格力电器股份有限公司 | Flooded evaporator and water-cooled air conditioning unit with same |
| CN103925747A (en) * | 2013-01-16 | 2014-07-16 | 珠海格力电器股份有限公司 | Flooded evaporator and water-cooled air conditioning unit with same |
| CN103925748B (en) * | 2013-01-16 | 2016-08-24 | 珠海格力电器股份有限公司 | Flooded evaporator and there is the Water-cooling type air conditioner unit of this evaporimeter |
| CN103925748A (en) * | 2013-01-16 | 2014-07-16 | 珠海格力电器股份有限公司 | Flooded evaporator and water-cooled air conditioning unit with same |
| CN103925747B (en) * | 2013-01-16 | 2016-08-24 | 珠海格力电器股份有限公司 | Flooded evaporator and there is the Water-cooling type air conditioner unit of this evaporimeter |
| CN104457003A (en) * | 2013-09-12 | 2015-03-25 | 同方人工环境有限公司 | Water cooling cold water/heat pump set suitable for inland river ship |
| JP2016539308A (en) * | 2013-12-05 | 2016-12-15 | リンデ アクチエンゲゼルシャフトＬｉｎｄｅ Ａｋｔｉｅｎｇｅｓｅｌｌｓｃｈａｆｔ | Heat exchanger with collecting passage for discharging liquid phase |
| CN104791014A (en) * | 2014-01-22 | 2015-07-22 | 山西易通环能科技集团有限公司 | Oil-return device used for low-temperature waste-heat power generator sets |
| CN104949397B (en) * | 2014-03-28 | 2018-11-09 | 荏原冷热***株式会社 | The evaporator of turborefrigerator and the turborefrigerator for having the evaporator |
| CN104949397A (en) * | 2014-03-28 | 2015-09-30 | 荏原冷热***株式会社 | Evaporator of turbine refrigerator and turbine refrigerator having evaporator |
| CN104976828A (en) * | 2014-04-01 | 2015-10-14 | 同方人工环境有限公司 | Sea ship flooded evaporator oil return device |
| CN104654675A (en) * | 2015-02-10 | 2015-05-27 | 珠海格力电器股份有限公司 | Flooded evaporator and air conditioning unit |
| CN110530066A (en) * | 2019-09-11 | 2019-12-03 | 上海工程技术大学 | Low pressure refrigerant flooded evaporator |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090318 |