CN106322848A - Flooded evaporator - Google Patents
Flooded evaporator Download PDFInfo
- Publication number
- CN106322848A CN106322848A CN201510398943.9A CN201510398943A CN106322848A CN 106322848 A CN106322848 A CN 106322848A CN 201510398943 A CN201510398943 A CN 201510398943A CN 106322848 A CN106322848 A CN 106322848A
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- heat exchange
- flooded evaporator
- tubes
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- tube layer
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Abstract
The invention provides a flooded evaporator. The flooded evaporator comprises an outer cylinder, the interior of the outer cylinder comprises at least three heat exchange pipe layers which are vertically arranged from bottom to top, each heat exchange pipe layer internally comprises at least one heat exchange pipe set, all the heat exchange pipe sets are horizontally arranged in the corresponding heat exchange pipe layers, each heat exchange pipe set comprises three heat exchange pipes which are triangularly arranged, and the area defined by three heat exchange pipes in the heat exchange pipe layer on the lower layer is smaller than the area defined by three heat exchange pipes in the heat exchange pipe layer on the upper layer. According to the flooded evaporator, the transverse and longitudinal intervals between the heat exchange pipes are sequentially increased from bottom to top, the influence of bubbles on heat exchange of the heat exchange pipes is reduced, particularly the influence on the heat exchange performance of the heat exchange pipes located at the higher position, the whole heat exchange effect of the evaporator is improved, and the heat exchange effect can be effectively improved by 15%.
Description
Technical field
The invention belongs to air-conditioning equipment field, particularly relate to a kind of flooded evaporator.
Background technology
The development trend of flooded evaporator is in the case of keeping certain exchange capability of heat at present, to the greatest extent
Amount makes volume miniaturization and cost-effective, the wherein size of the exchange capability of heat of flooded evaporator, mainly
Depend on selection and the arrangement of heat exchanger tube radical；The selection of heat exchanger tube radical simultaneously and arrangement
Also the volume size of flooded evaporator and the number of material are determined.
When flooded evaporator works, tube wall surface liquid refrigerant vaporizes after being heated, and will produce
Bubble, bubble can continuous agglomeration and be attached to tube bank on, in heat transfer process, bubble can more come
The most, if bubble can not flow away in this case, be equivalent to increase between cold-producing medium and heat exchanger tube
Heat transfer resistance, reduces effective heat transfer area of heat exchange pipe group, thus exchanges the heat transfer outside a tube performance of heat pipe
Generation has a strong impact on, and affects vaporizer overall heat exchange effect further.
Summary of the invention
Therefore, the present invention provides a kind of by increasing the spacing between heat exchanger tube by avoiding bubble shadow
Ring and then improve the flooded evaporator of vaporizer overall heat exchange effect.
A kind of flooded evaporator, including outer cylinder body, includes at least 3 layers of heat exchange inside described outer cylinder body
Tube layer, all described heat exchange tube layer are the most vertically arranged, and arrange inside every layer of described heat exchange tube layer
Have least one set set of heat exchange tubes, all described set of heat exchange tubes in corresponding described heat exchange tube layer in level
Arrangement, and often organize described set of heat exchange tubes and include three heat exchanger tubes in triangle arrangement, heat exchanger tube described in lower floor
The area that three described heat exchanger tubes in Ceng surround is less than three described heat exchange in heat exchange tube layer described in upper strata
The area that circumference of cannon bone becomes.
Often organize two described heat exchanger tubes in described set of heat exchange tubes three heat exchanger tubes along being perpendicular to level
Arrange in direction, face.
Often organizing in described set of heat exchange tubes three heat exchanger tubes is isosceles triangle arrangement.
The hypotenuse length that described set of heat exchange tubes in heat exchange tube layer described in lower floor is formed is less than upper
The hypotenuse length that described set of heat exchange tubes in the described heat exchange tube layer of layer is formed.
The height of the triangle in all described set of heat exchange tubes increases 1mm the most successively.
Being 22.5mm at the bottom of the triangle of the described set of heat exchange tubes in described heat exchange tube layer under, waist is a length of
22.5mm。
The spacing of all described heat exchange tube layer is identical.
The spacing of all described heat exchange tube layer is 22.5mm, heat exchanger tube external diameter be φ 18.92mm or
φ19.05mm。
The flooded evaporator that the present invention provides, by increasing the horizontal stroke between heat exchanger tube the most successively
To and longitudinal pitch, reduce the impact of bubble heat exchanging, particularly to the heat exchange being in higher position
The impact of the heat exchange property of pipe, and then improve vaporizer overall heat exchange effect, 15% can be effectively increased
Heat transfer effect.
Figure of description
Fig. 1 is the sectional view of the flooded evaporator that the present invention provides；
Fig. 2 is the structural representation of the heat exchange tube layer of the flooded evaporator that the present invention provides；
Fig. 3 is the structural representation of the set of heat exchange tubes of the flooded evaporator that the present invention provides；
Fig. 4 is the horizontal spacing heat exchanging effect of the heat exchanger tube of the flooded evaporator that the present invention provides
Influence curve；
Fig. 5 is the longitudinal pitch heat exchanging effect of the heat exchanger tube of the flooded evaporator that the present invention provides
Influence curve.
Detailed description of the invention
Below by specific embodiment and combine accompanying drawing to describe the present invention in detail.
Flooded evaporator as shown in Figure 1, including shell 1, described shell 1 is internal includes at least 3
Layer heat exchange tube layer 2, all described heat exchange tube layer 2 the most vertically arrange, every layer of described heat exchange tube layer
2 are internally provided with least one set set of heat exchange tubes 3, and all described set of heat exchange tubes 3 are in corresponding described heat exchange
In horizontal arrangement in tube layer 2, and often organize described set of heat exchange tubes 3 and include three heat exchanger tubes 4 in triangle arrangement,
The area that three described heat exchanger tubes 4 in heat exchange tube layer 2 described in lower floor surround is less than heat exchange described in upper strata
The area that the interior three described heat exchanger tubes 4 of tube layer 2 surround.
By increasing the spacing between described heat exchanger tube 4, make the described heat exchange tube layer 2 that position is under relatively
Produced bubble is more prone to rise to liquid level, it is to avoid bubble to location comparison top described in change
The impact of the heat transfer effect of heat pipe layer 2.
Often organize two described heat exchanger tubes 4 in three heat exchanger tubes 4 in described set of heat exchange tubes 3 along vertically
Arrange in horizontal plane direction, it is ensured that the thickness of each described heat exchange tube layer 2 is identical, makes described heat exchanger tube
Layer 2 conveniently processes, produce, keep in repair and the work such as replacement.
Three heat exchanger tubes 4 often organized in described set of heat exchange tubes 3 are arranged in isosceles triangle.
Described set of heat exchange tubes 3 in heat exchange tube layer 2 described in lower floor as shown in Figures 2 and 3 is formed
Hypotenuse length is less than three of described set of heat exchange tubes 3 formation in heat exchange tube layer 2 described in upper strata
The hypotenuse length of dihedral.
The height of the triangle in all described set of heat exchange tubes 3 increases 1mm the most successively.
Increase the height of triangle successively, in the case of keeping base identical, be equivalent to increase triangle
The waist of shape is long, i.e. increases the spacing between described heat exchanger tube 4.
It is 22.5mm at the bottom of the triangle of the described set of heat exchange tubes 3 in described heat exchange tube layer 2 under, waist
A length of 22.5mm.
The spacing of all described heat exchange tube layer 2 is identical.
The spacing of all described heat exchange tube layer 2 is 22.5mm.
Embodiment
4 layers of described heat exchange tube layer 2 are included inside the flooded evaporator of the application；
Described heat exchanger tube 4 material is copper tube, and female thread form, and described heat exchanger tube 4 external diameter is φ
18.92mm or φ 19.05mm.Transverse pipe ethnic group quantity and vertical duct ethnic group quantity are the design such as not,
And be also to differ and unequal design in the tube pitch of each nest of tubes of transverse pipe ethnic group.
Wherein, the waist length of triangle that described set of heat exchange tubes 3 is formed be followed successively by from the bottom to top 22.5mm,
22.9mm, 23mm and 23.4mm.
As shown in Figure 4 and Figure 5, increase interbank horizontal spacing and longitudinal pitch can effectively promote
Tube bank surface film thermal conductance.When the increase scope of horizontal spacing and longitudinal pitch is between 0.1-1mm,
It is maximum that tube bank surface film thermal conductance promotes amplitude.
The present invention provide flooded evaporator, by increase the most successively described heat exchanger tube 4 it
Between horizontal and vertical spacing, reduce the impact of bubble heat exchanging, particularly to being in higher position
The impact of heat exchange property of described heat exchanger tube 4, and then improve vaporizer overall heat exchange effect, can have
Effect increases by the heat transfer effect of 15%.
It is only the preferred embodiment of the present invention by the above, it is noted that for the art
Those of ordinary skill for, under the premise without departing from the principles of the invention, it is also possible to make some changing
Entering and retouch, these improvements and modifications also should be regarded as protection scope of the present invention.
Claims (8)
1. a flooded evaporator, including outer cylinder body, it is characterised in that: the internal bag of described outer cylinder body
Including at least 3 layers of heat exchange tube layer, all described heat exchange tube layer are the most vertically arranged, and change described in every layer
Heat pipe layer is internally provided with least one set set of heat exchange tubes, and all described set of heat exchange tubes are changed described in corresponding
In horizontal arrangement in heat pipe layer, and often organize described set of heat exchange tubes and include three heat exchanger tubes in triangle arrangement,
The area that three described heat exchanger tubes in heat exchange tube layer described in lower floor surround is less than heat exchange tube layer described in upper strata
The area that interior three described heat exchanger tubes surround.
Flooded evaporator the most according to claim 1, it is characterised in that: often organize described heat exchange
Two described heat exchanger tubes in three heat exchanger tubes in pipe group are along being perpendicular to the arrangement of horizontal plane direction.
Flooded evaporator the most according to claim 2, it is characterised in that: often organize described heat exchange
Three heat exchanger tubes in pipe group are isosceles triangle arrangement.
Flooded evaporator the most according to claim 3, it is characterised in that: heat exchange described in lower floor
The hypotenuse length that described set of heat exchange tubes in tube layer is formed is less than in heat exchange tube layer described in upper strata
Described set of heat exchange tubes formed hypotenuse length.
Flooded evaporator the most according to claim 4, it is characterised in that: all described heat exchange
The height of the triangle in pipe group increases 1mm the most successively.
Flooded evaporator the most according to claim 5, it is characterised in that: described heat exchange under
It is 22.5mm at the bottom of the triangle of the described set of heat exchange tubes in tube layer, a length of 22.5mm of waist.
Flooded evaporator the most according to claim 1, it is characterised in that: all described heat exchange
The spacing of tube layer is identical.
Flooded evaporator the most according to claim 7, it is characterised in that: all described heat exchange
The spacing of tube layer is 22.5mm, and heat exchanger tube external diameter is φ 18.92mm or φ 19.05mm.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510386117 | 2015-06-30 | ||
| CN2015103861172 | 2015-06-30 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106322848A true CN106322848A (en) | 2017-01-11 |
| CN106322848B CN106322848B (en) | 2019-02-15 |
Family
ID=57725584
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510398943.9A Active CN106322848B (en) | 2015-06-30 | 2015-07-09 | Flooded evaporator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106322848B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108844259A (en) * | 2018-07-25 | 2018-11-20 | 珠海格力电器股份有限公司 | Evaporator and air conditioning unit |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2313903A (en) * | 1995-05-25 | 1997-12-10 | American Standard Inc | Falling film evaporator with refrigerant distribution system |
| US6868695B1 (en) * | 2004-04-13 | 2005-03-22 | American Standard International Inc. | Flow distributor and baffle system for a falling film evaporator |
| CN102062500A (en) * | 2011-01-26 | 2011-05-18 | 天津商业大学 | Boiling heat exchanger outside ultrasonic oscillating tube |
| CN203163349U (en) * | 2012-12-27 | 2013-08-28 | 麦克维尔空调制冷(武汉)有限公司 | Falling film evaporator provided with unique gas passages |
| CN103925749A (en) * | 2013-12-30 | 2014-07-16 | 麦克维尔空调制冷(武汉)有限公司 | Falling film evaporator |
| CN104303000A (en) * | 2012-04-23 | 2015-01-21 | 大金应用美国股份有限公司 | Heat exchanger |
| CN104676978A (en) * | 2015-01-21 | 2015-06-03 | 山东御嘉空调设备有限公司 | Water source heat pump unit system for low temperature water source |
-
2015
- 2015-07-09 CN CN201510398943.9A patent/CN106322848B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2313903A (en) * | 1995-05-25 | 1997-12-10 | American Standard Inc | Falling film evaporator with refrigerant distribution system |
| US6868695B1 (en) * | 2004-04-13 | 2005-03-22 | American Standard International Inc. | Flow distributor and baffle system for a falling film evaporator |
| CN102062500A (en) * | 2011-01-26 | 2011-05-18 | 天津商业大学 | Boiling heat exchanger outside ultrasonic oscillating tube |
| CN104303000A (en) * | 2012-04-23 | 2015-01-21 | 大金应用美国股份有限公司 | Heat exchanger |
| CN203163349U (en) * | 2012-12-27 | 2013-08-28 | 麦克维尔空调制冷(武汉)有限公司 | Falling film evaporator provided with unique gas passages |
| CN103925749A (en) * | 2013-12-30 | 2014-07-16 | 麦克维尔空调制冷(武汉)有限公司 | Falling film evaporator |
| CN104676978A (en) * | 2015-01-21 | 2015-06-03 | 山东御嘉空调设备有限公司 | Water source heat pump unit system for low temperature water source |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108844259A (en) * | 2018-07-25 | 2018-11-20 | 珠海格力电器股份有限公司 | Evaporator and air conditioning unit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106322848B (en) | 2019-02-15 |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20181204 Address after: 230601 No. 1, No. 2, No. 3 Haier Innovation Industrial Park, 3456 Shixin Road, Hefei Economic and Technological Development Zone, Anhui Province Applicant after: Hefei Haier Air Conditioning Electronics Co., Ltd. Address before: 266101 Haier Industrial Park, 1 Haier Road, Laoshan District, Qingdao, Shandong. Applicant before: Electronics Co., Ltd. of air conditioner of Haier of Qingdao |
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| GR01 | Patent grant |