CN2784831Y - Flooded evaporator with oil return device - Google Patents
Flooded evaporator with oil return device Download PDFInfo
- Publication number
- CN2784831Y CN2784831Y CN 200520068207 CN200520068207U CN2784831Y CN 2784831 Y CN2784831 Y CN 2784831Y CN 200520068207 CN200520068207 CN 200520068207 CN 200520068207 U CN200520068207 U CN 200520068207U CN 2784831 Y CN2784831 Y CN 2784831Y
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- Prior art keywords
- oil return
- ball float
- flexible pipe
- liquid
- flooded evaporator
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Abstract
The utility model relates to a flooded evaporator with an oil return device in a refrigeration system of an air conditioner. In the utility model, the appropriate position of the outer side of a casing (5) is provided with a main member of the oil return device, which is composed of an oil return joint (11), a sleeve pipe (12), a slide pipe (13) and a floating ball (14), or a main member of the oil return device, which is composed of the oil return joint (11), a U-shapes flexible pipe (213) and the floating ball (14), wherein the combining part of the slide pipe (13) and the float ball (14) or the combining part of the U-shaped flexible pipe (213) and the float ball (14) is provided with an oil return hole; the oil return joint (11) is connected with the low pressure side of a compressor through an external connection pipe; the slide pipe (13) and the float ball (14) or the U-shapes flexible pipe (213) and the float ball (14) fluctuate following the up and down fluctuation of a liquid level; lubricating oil on the liquid level position is pumped by the low pressure side of the compressor all along. The lubricating oil is not accumulated in the flooded evaporator, therefore the flooded evaporator can be ensured to operate in high efficiency.
Description
Affiliated technical field
The utility model relates to the flooded evaporator in a kind of air-conditioning refrigeration system, especially the flooded evaporator of taking back oily device in the air-conditioning refrigeration system.
Background technology
In air-conditioning refrigeration system, cold-producing medium sucks compression, is condensed into liquid, realizes kind of refrigeration cycle in choke valve throttling step-down with at evaporimeter heat absorption evaporation back-steam in the condenser heat release through compressor.Evaporimeter has the branch of shell-tube type, bushing type and fin-tube type.The branch that dry type and full-liquid type are arranged in shell and tube evaporator.The flow through shell side of evaporimeter of the cold-producing medium tube side of evaporimeter of flowing through in the dry evaporator, refrigerating medium.The lubricating oil of lubricate compressors generally is slightly soluble in the cold-producing medium.Because cold-producing medium is at the flow velocity height of dry evaporator tube side, there is not the problem of oil return difficulty in dry evaporator.Dry evaporator exists pressure to fall big and shortcomings such as feed flow distribution inequality and complex structure, makes complete machine energy efficiency poor than full-liquid type.The flow through tube side of evaporimeter of the cold-producing medium shell side of evaporimeter of flowing through in the flooded evaporator, refrigerating medium.Because cold-producing medium is low at the flow velocity of flooded evaporator shell side, there is the problem of oil return difficulty in flooded evaporator.Along with the prolongation of compressor operating time, lubricating oil will accumulate in flooded evaporator, and it will increase heat transfer resistance, worsen heat-transfer effect, can not get oil return as compressor, will cause the unit cisco unity malfunction.Flooded evaporator exists pressure to fall little and heat transfer efficiency height and advantages of simple structure and simple, makes complete machine energy efficiency height.From energy-conservation angle, flooded evaporator will be widely used.
In order to solve the problem that there is the oil return difficulty in flooded evaporator, prior art adopts the regular oil return mode of the outer comb oil-collecting of housing (5), the regular oil return mode of housing (5) inner swash plate oil-collecting and housing (5) low level rich oil district's oil return mode.
The regular oil return mode of the outer comb oil-collecting of housing (5) exists establishes oil catcher and oil return complicated operation in addition and only is applicable to ammonia system and is not suitable for the problem of freon system; The regular oil return mode of housing (5) inner swash plate oil-collecting exist liquid level descend can not oil-collecting problem; There is the problem that saturated oils district, liquid level position can not oil return in housing (5) low level rich oil district's oil return mode.
Summary of the invention
The problem that exists for the prior art that solves the regular oil return mode of the outer comb oil-collecting of housing (5), the regular oil return mode of housing (5) inner swash plate oil-collecting and housing (5) low level rich oil district's oil return mode, the utility model proposes the flooded evaporator of taking back oily device in a kind of air-conditioning refrigeration system, its oil return apparatus can the oil return swimmingly along with the lifting of liquid level.
Flooded evaporator is except that the water cover at tube side two ends, form by tube sheet (1), superheater tube (2), return tube group (3), liquid barrier (4), housing (5), gripper shoe (6), evaporation tube (7), liquid-distributing plate (8) and feed pipe group (9) etc., cold-producing medium enters in the housing (5) from feed pipe group (9), cold-producing medium is in evaporation tube (7) outside, evaporation tube (7) all is immersed in the cold-producing medium, is provided with evaporating space between evaporation tube (7) and the superheater tube (2).Slightly soluble has the cold-producing medium of lubricating oil to absorb the heat of the inboard refrigerating medium of evaporation tube (7) of flowing through in evaporation tube (7) outside and evaporates.
The flooded evaporator of taking back oily device disposes plinth (10) in the appropriate location in the outside of its housing (5), back leakage connection (11), sleeve pipe (12), sliding tube (13), ball float (14), liquid-sighting glass (15), liquid-sighting glass seat (16) and adapter (17), back leakage connection (11) and plinth (10) are by being threaded, sleeve pipe (12) is integral with back leakage connection (11), ball float (14) is integral with sliding tube (13), sliding tube (13) can slide sleeve pipe (12) in sleeve pipe (12), sliding tube (13) and ball float (14) place by plinth (10), liquid-sighting glass (15), in the inner chamber that liquid-sighting glass seat (16) and adapter (17) are formed; Perhaps dispose plinth (10), back leakage connection (11), U-shaped flexible pipe (213), ball float (14), liquid-sighting glass (15), liquid-sighting glass seat (16) and take over (17), back leakage connection (11) and plinth (10) are by being threaded, ball float (14), U-shaped flexible pipe (213) are integral with back leakage connection (11), U-shaped flexible pipe (213) can stretch along with fluctuating of ball float (14), and U-shaped flexible pipe (213) and ball float (14) place by plinth (10), liquid-sighting glass (15), liquid-sighting glass seat (16) and take over the inner chamber that (17) are formed.Form the main member of oil return apparatus by back leakage connection (11), sleeve pipe (12), sliding tube (13) and ball float (14), perhaps form the main member of oil return apparatus by back leakage connection (11), U-shaped flexible pipe (213) and ball float (14).Joint portion at sliding tube (13) or U-shaped flexible pipe (213) and ball float (14) has spill port; Back leakage connection (11) is connected with the low-pressure side of compressor by extension tube attached.
Sliding tube (13) or U-shaped flexible pipe (213) fluctuate along with the fluctuation up and down of liquid level with ball float (14), and the lubricating oil at liquid level position is taken away by the low-pressure side of compressor all the time.
The beneficial effects of the utility model are, no matter compressor operating how long or the oily accident of running quickly takes place, lubricating oil will not accumulate in flooded evaporator, thereby has guaranteed the high-efficiency operation of flooded evaporator.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is an embodiment of vertical section structural map who takes back the flooded evaporator of oily device.
Fig. 2 is another embodiment of vertical section structural map that takes back the flooded evaporator of oily device.
1. tube sheets among the figure, 2. superheater tube, 3. return tube group, 4. liquid barrier, 5. housing, 6. gripper shoe, 7. evaporation tube, 8. liquid-distributing plate, 9. feed pipe group, 10. plinth, 11. back leakage connections, 12. sleeve pipes, 13. sliding tube, 14. ball floats, 15. liquid-sighting glass, 16. liquid-sighting glass seats, 17. take over 213.U shape flexible pipe.
The specific embodiment
Press Fig. 1 or Fig. 2 and form the flooded evaporator shell side by tube sheet (1), superheater tube (2), return tube group (3), liquid barrier (4), housing (5), gripper shoe (6), evaporation tube (7), liquid-distributing plate (8) and feed pipe group (9) etc.; At the appropriate location in the outside of its housing (5) configuration plinth (10), back leakage connection (11), sleeve pipe (12), sliding tube (13), ball float (14), liquid-sighting glass (15), liquid-sighting glass seat (16) with take over (17), perhaps dispose plinth (10), back leakage connection (11), U-shaped flexible pipe (213), ball float (14), liquid-sighting glass (15), liquid-sighting glass seat (16) and take over (17) and form oil return apparatus.Joint portion at sliding tube (13) or U-shaped flexible pipe (213) and ball float (14) has spill port; Back leakage connection (11) is connected with the low-pressure side of compressor by extension tube attached.The lubricating oil at liquid level position is taken away by the low-pressure side of compressor all the time.
Claims (3)
1. the flooded evaporator in the air-conditioning refrigeration system, take back oily device, it is characterized in that: in the configuration of the appropriate location in the outside of its housing (5) by back leakage connection (11), sleeve pipe (12), sliding tube (13) and ball float (14) are formed the main member of oil return apparatus, back leakage connection (11) and plinth (10) are by being threaded, sleeve pipe (12) is integral with back leakage connection (11), ball float (14) is integral with sliding tube (13), sliding tube (13) can slide sleeve pipe (12) in sleeve pipe (12), sliding tube (13) and ball float (14) place by plinth (10), liquid-sighting glass (15), in the inner chamber that liquid-sighting glass seat (16) and adapter (17) are formed.
2. according to the flooded evaporator of claim 1, take back oily device, it is characterized in that: in the configuration of the appropriate location in the outside of its housing (5) by back leakage connection (11), U-shaped flexible pipe (213) and ball float (14) are formed the main member of oil return apparatus, back leakage connection (11) and plinth (10) are by being threaded, ball float (14), U-shaped flexible pipe (213) is integral with back leakage connection (11), U-shaped flexible pipe (213) can stretch along with fluctuating of ball float (14), and U-shaped flexible pipe (213) and ball float (14) place by plinth (10), liquid-sighting glass (15), in the inner chamber that liquid-sighting glass seat (16) and adapter (17) are formed.
3. according to the oil return apparatus of claim 1 and claim 2, it is characterized in that: the joint portion at sliding tube (13) or U-shaped flexible pipe (213) and ball float (14) has spill port; Back leakage connection (11) is connected with the low-pressure side of compressor by extension tube attached; Sliding tube (13) or U-shaped flexible pipe (213) fluctuate along with the fluctuation up and down of liquid level with ball float (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520068207 CN2784831Y (en) | 2005-01-12 | 2005-01-12 | Flooded evaporator with oil return device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520068207 CN2784831Y (en) | 2005-01-12 | 2005-01-12 | Flooded evaporator with oil return device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2784831Y true CN2784831Y (en) | 2006-05-31 |
Family
ID=36771804
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520068207 Expired - Lifetime CN2784831Y (en) | 2005-01-12 | 2005-01-12 | Flooded evaporator with oil return device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2784831Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102435022A (en) * | 2011-12-06 | 2012-05-02 | 克莱门特捷联制冷设备(上海)有限公司 | Multicompressor parallel connection unit using flooded type shell and tube evaporator |
| CN102563982A (en) * | 2012-02-14 | 2012-07-11 | 温岭市钱江化工机械有限公司 | Evaporating plant in refrigerating system |
| CN103047799A (en) * | 2012-12-26 | 2013-04-17 | 上海环球制冷设备有限公司 | Automatic oil returning device of flooded evaporator and utilizing method of automatic oil returning device |
| CN105641962A (en) * | 2016-03-15 | 2016-06-08 | 山东科灵节能装备股份有限公司 | Falling-film evaporator and organic Rankine cycle power generating system using same |
| CN109458762A (en) * | 2018-12-17 | 2019-03-12 | 江苏世林博尔制冷设备有限公司 | A kind of oil return mechanism of vertical bar type evaporator |
| CN110220337A (en) * | 2019-07-11 | 2019-09-10 | 格兰立方能源科技(江苏)有限公司 | A kind of novel float-type oil return apparatus for flooded evaporator |
| CN111219911A (en) * | 2020-01-09 | 2020-06-02 | 珠海格力电器股份有限公司 | Injection oil return device and refrigeration equipment |
-
2005
- 2005-01-12 CN CN 200520068207 patent/CN2784831Y/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102435022A (en) * | 2011-12-06 | 2012-05-02 | 克莱门特捷联制冷设备(上海)有限公司 | Multicompressor parallel connection unit using flooded type shell and tube evaporator |
| CN102563982A (en) * | 2012-02-14 | 2012-07-11 | 温岭市钱江化工机械有限公司 | Evaporating plant in refrigerating system |
| CN103047799A (en) * | 2012-12-26 | 2013-04-17 | 上海环球制冷设备有限公司 | Automatic oil returning device of flooded evaporator and utilizing method of automatic oil returning device |
| CN103047799B (en) * | 2012-12-26 | 2015-08-05 | 上海环球制冷设备有限公司 | Flooded evaporator automatic oil-return device and using method |
| CN105641962A (en) * | 2016-03-15 | 2016-06-08 | 山东科灵节能装备股份有限公司 | Falling-film evaporator and organic Rankine cycle power generating system using same |
| CN109458762A (en) * | 2018-12-17 | 2019-03-12 | 江苏世林博尔制冷设备有限公司 | A kind of oil return mechanism of vertical bar type evaporator |
| CN110220337A (en) * | 2019-07-11 | 2019-09-10 | 格兰立方能源科技(江苏)有限公司 | A kind of novel float-type oil return apparatus for flooded evaporator |
| CN111219911A (en) * | 2020-01-09 | 2020-06-02 | 珠海格力电器股份有限公司 | Injection oil return device and refrigeration equipment |
| CN111219911B (en) * | 2020-01-09 | 2020-12-11 | 珠海格力电器股份有限公司 | Injection oil return device and refrigeration equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20150112 Granted publication date: 20060531 |
|
| DD01 | Delivery of document by public notice |
Addressee: Jin Wanda Document name: Notification of Expiration of Patent Right Duration |