CN106225334A - A kind of vertically coiled pipe falling film evaporation condenser and method - Google Patents
A kind of vertically coiled pipe falling film evaporation condenser and method Download PDFInfo
- Publication number
- CN106225334A CN106225334A CN201610785888.3A CN201610785888A CN106225334A CN 106225334 A CN106225334 A CN 106225334A CN 201610785888 A CN201610785888 A CN 201610785888A CN 106225334 A CN106225334 A CN 106225334A
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- Prior art keywords
- water
- condensing heat
- upper pool
- vertical
- pipe
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B39/00—Evaporators; Condensers
- F25B39/04—Condensers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2339/00—Details of evaporators; Details of condensers
- F25B2339/04—Details of condensers
- F25B2339/041—Details of condensers of evaporative condensers
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention discloses a kind of vertically coiled pipe falling film evaporation condenser and method；Including the vertical condensing heat-exchanging pipe of array arrangement, the kink in vertical condensing heat-exchanging pipe upper end is provided with upper pool, and the kink of its upper end is placed in this upper pool, and under the cooling water liquid level being submerged in upper pool；Cooling water in upper pool is by being opened in the cloth water-bound bottom upper pool, whole outer tube wall along vertical condensing heat-exchanging pipe flows downward, the water coolers flowed downward overlays on the whole outer tube wall of vertical condensing heat-exchanging pipe, and forms the water film persistently flowed downward；This water film forms falling film evaporation, absorbs heat, thus reduces the condensation temperature of vertical condensing heat-exchange tube refrigerant, improves refrigerating efficiency.
Description
Technical field
The present invention relates to field of heat transfer of freezing, particularly relate to a kind of vertically coiled pipe falling film evaporation condenser and method.
Background technology
Evaporative condenser is made in making coil pipe mainly by gasification latent heat during heat exchanger tube outer spraying cooling water evaporation
Refrigerant vapor condenses.Being united two into one by the cooling twice heat transfer process of traditional water-cooled and air-cooled cooling tower, it is unnecessary to eliminate
Cooling tower and the heat exchanger of pilot process, its heat transfer efficiency height, compact conformation, volume is little, quantity of circulating water is few, greatly reduces
The initial cost of equipment, day by day promotes in industries such as power, chemical industry, food, petrochemical industry, refrigeration, and achieves the biggest success.Evaporation
Formula condenser is mainly made up of heat exchanger, water circulation system and blower fan three part.
Existing evaporative condenser includes two kinds of primitive forms.A kind of is the counter flow type evaporative condenser without filler,
Another kind is the evaporative condenser of band filler.Its condenser heat exchange core component is all based on " transverse tube ", main to its research
Concentrate on the development of efficient heat conducting tube and improve and the process aspect of tube-surface, using the various strengthening such as elliptical tube, twisted tube to pass
Heat pipe replaces existing smooth pipe, and uses nano-fluid technology, and its heat-transfer effect is greatly improved；To strengthen biography
Based on heat pipe, improve evaporative condenser heat-transfer effect and be difficult to make a breakthrough technically.
Without the counter flow type evaporative condenser of filler owing to there is no filler, in the heat exchange of condenser portion, air and water
Using countercurrent flow, the cooling of water places one's entire reliance upon, and the water of lower pouring is skyborne with air to be contacted, and the heat exchange of air and water can only
Aloft completing, owing to water is little with air contact area, heat transfer effect is the most inconspicuous.The water of higher temperatures is directly entered collecting-tank,
The temperature of pool inner water of making to catchment raises, and the temperature of spray water on condenser is higher, and heat exchange efficiency is low, and energy consumption is high.
Condenser and cooling tower are united two into one by filler evaporation type condenser, and retaining one section in condenser coil bottom has filler
Heat exchange layers.In the equidirectional inflow of coil portions current and air flow parallel, then cross-flow is flowed out；And air stream is handed in filler heat
Change layer segment and mainly use cross-current configuration.This condenser air and water in filler heat exchange layers have carried out secondary caloic and have handed over
Change, greatly reduce coolant water temperature, and then improve the unit are heat exchange amount of condenser coil.But volume increases, floor space
Increase.
Summary of the invention
It is an object of the invention to overcome the shortcoming and defect of above-mentioned prior art, it is provided that a kind of high efficient heat exchanging, minimizing system
The vertical coiled pipe falling film evaporation condenser of cryogen burden and method.
The present invention is achieved through the following technical solutions:
A kind of vertically coiled pipe falling film evaporation condenser, including the vertical condensing heat-exchanging pipe 1 of array arrangement, this vertically condenses and changes
The kink of heat pipe 1 lower end connects with lower collector tube 3 respectively；The kink of described vertical condensing heat-exchanging pipe 1 upper end is provided with water
Pond 5, the kink of its upper end is placed in this upper pool 5, and under the cooling water liquid level being submerged in upper pool 5；
Cooling water in described upper pool 5 is by being opened in the cloth water-bound bottom upper pool 5, along vertical condensing heat-exchange
The whole outer tube wall of pipe 1 flows downward, and the water coolers flowed downward overlays on the whole outer tube wall of vertical condensing heat-exchanging pipe 1,
And form the water film persistently flowed downward；Vertical condensing heat-exchanging pipe 1 is lowered the temperature by this water film.
It is provided with collecting-tank 6 below the kink of described vertical condensing heat-exchanging pipe 1 lower end；Collecting-tank 6 for collect from
Cooling water in pond 5；
Described vertical coiled pipe falling film evaporation condenser also includes one for the cooling water in collecting-tank 6 is fed back to upper water
The water recovery apparatus in pond 5.
Described water recovery apparatus includes suction pump 8 and return pipe 81.
Described upper pool 5 is provided with water supplement port, water supplement port connection external water source；Water supplement port is provided with float-valve type automatic water supplement mechanism
9；
When the cooling water of upper pool 5 due to evaporation less than designated water level time, the valve of this float-valve type automatic water supplement mechanism 9
Automatically open up, upper pool 5 is carried out moisturizing；
When the water level of upper pool 5 reaches designated water level, the valve of this float-valve type automatic water supplement mechanism 9 is automatically switched off, and stops
Only moisturizing.
Described cloth water-bound is to run through the dentation through hole 7 bottom upper pool 5；Vertically the outer tube wall of condensing heat-exchanging pipe 1 passes
This dentation through hole 7, cooling water is flowed out by the dentation gap between this dentation through hole 7 and outer tube wall, and along vertical condensing heat-exchange
The whole outer tube wall of pipe 1 flows downward, and the water coolers flowed downward overlays on the whole outer tube wall of vertical condensing heat-exchanging pipe 1,
Make it form, at whole outer tube wall, the water film persistently flowed downward, and then realize vertical condensing heat-exchanging pipe by this water film
The cooling of 1.
The end of described lower collector tube 3 is provided with liquid seal device 4.
A kind of method reducing condenser tube inner refrigerant condensation temperature is as follows:
Cold-producing medium after compressor compresses is entered vertical condensing heat-exchanging pipe 1 by inlet 2, and at vertical condensing heat-exchanging pipe
Constantly condensing in 1, cold-producing medium flows downward along the inwall of vertical condensing heat-exchanging pipe 1 under gravity, and is collected to next part
Liquid pipe 3；
Meanwhile, the cooling water in upper pool 5 is flowed out by the dentation gap between this dentation through hole 7 and outer tube wall, and
Whole outer tube wall along vertical condensing heat-exchanging pipe 1 flows downward, and the water coolers flowed downward overlays on vertical condensing heat-exchanging pipe 1
Whole outer tube wall so that it is form, at whole outer tube wall, the water film persistently flowed downward, this water film formed falling liquid film steam
Send out, absorb heat, thus reduce the condensation temperature of vertical condensing heat-exchanging pipe 1 inner refrigerant, improve refrigerating efficiency.
The method also includes one for the backwater step that the cooling water in collecting-tank 6 is fed back to upper pool 5.
The method also includes a upper pool 5 automatic water supplement step；When the cooling water of upper pool 5 due to evaporation less than setting
When determining water level, the valve of float-valve type automatic water supplement mechanism 9 automatically opens up, and then upper pool 5 is carried out moisturizing；
When the water level of upper pool 5 reaches designated water level, the valve of this float-valve type automatic water supplement mechanism 9 is automatically switched off, and enters
And stop moisturizing.
The present invention, relative to prior art, has such advantages as and effect:
High-temperature high-pressure refrigerant after compressor compresses enters vertical condensing heat-exchanging pipe 1, the most constantly condenses, refrigeration
Agent flows downward under gravity, flows into lower collector tube.Due to the acceleration of gravity, the very thin thickness of liquid film, therefore, make
The liquid phase burden of cryogen is the least, and the refrigerant amount needed for refrigeration system greatly reduces.Vertically the outer wall of condensing heat-exchanging pipe 1 due to
Cooling water flows downward along tube wall, and the water coolers flowed downward overlays on the whole outer tube wall of vertical condensing heat-exchanging pipe 1, makes
It forms, at whole outer tube wall, the water film persistently flowed downward, and water film forms falling film evaporation, absorbs heat, reduces water
Temperature, thus reduce the condensation temperature of tube refrigerant, improve refrigerating efficiency.
Cooling water flows out from the dentation gap between dentation through hole 7 and outer tube wall, and dentalation is conducive to cooling down water can be more
Good fits with vertical condensing heat-exchanging pipe 1 surface.
Cooling water in collecting-tank 6 is recycled in upper pool 5 be repeatedly circulated by water recovery apparatus, reduces water consumption,
Reduce and use water cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention vertical coiled pipe falling film evaporation condenser.
Fig. 2 is upper pool plan structure schematic diagram.
Fig. 3 is the joint close-up schematic view of dentation through hole and vertical condensing heat-exchanging pipe.
Fig. 4 be this outbreak be the application schematic diagram of the condenser of refrigeration system.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is more specifically described in detail.
Embodiment
As shown in Figures 1 to 4.The invention discloses a kind of vertically coiled pipe falling film evaporation condenser, erecting including array arrangement
Straight condensing heat-exchanging pipe 1, the kink of this vertical condensing heat-exchanging pipe 1 lower end connects with lower collector tube 3 respectively；Described vertical condensation is changed
The kink of heat pipe 1 upper end is provided with upper pool 5, and the kink of its upper end is placed in this upper pool 5, and is submerged in upper pool 5
Cooling water liquid level under；
Cooling water in described upper pool 5 is by being opened in the cloth water-bound bottom upper pool 5, along vertical condensing heat-exchange
The whole outer tube wall of pipe 1 flows downward, and the water coolers flowed downward overlays on the whole outer tube wall of vertical condensing heat-exchanging pipe 1,
And form the water film persistently flowed downward；Vertical condensing heat-exchanging pipe 1 is lowered the temperature by this water film.
It is provided with collecting-tank 6 below the kink of described vertical condensing heat-exchanging pipe 1 lower end；Collecting-tank 6 for collect from
Cooling water in pond 5；
Described vertical coiled pipe falling film evaporation condenser also includes one for the cooling water in collecting-tank 6 is fed back to upper water
The water recovery apparatus in pond 5.
Described water recovery apparatus includes suction pump 8 and return pipe 81.
Described upper pool 5 is provided with water supplement port, water supplement port connection external water source；Water supplement port is provided with float-valve type automatic water supplement mechanism
9；
When the cooling water of upper pool 5 due to evaporation less than designated water level time, the valve of this float-valve type automatic water supplement mechanism 9
Automatically open up, upper pool 5 is carried out moisturizing；
When the cooling water water level in upper pool 5 reaches designated water level, the valve of this float-valve type automatic water supplement mechanism 9 is automatic
Close, stop moisturizing.
Described cloth water-bound is to run through the dentation through hole 7 bottom upper pool 5；Vertically the outer tube wall of condensing heat-exchanging pipe 1 passes
This dentation through hole 7, cooling water is flowed out by the dentation gap between this dentation through hole 7 and outer tube wall, and along vertical condensing heat-exchange
The whole outer tube wall of pipe 1 flows downward, and the water coolers flowed downward overlays on the whole outer tube wall of vertical condensing heat-exchanging pipe 1,
Make it form, at whole outer tube wall, the water film persistently flowed downward, and then realize vertical condensing heat-exchanging pipe by this water film
The cooling of 1.
The end of described lower collector tube 3 is provided with liquid seal device 4.
The present invention reduces the method for condenser tube inner refrigerant condensation temperature, can be achieved by the steps of:
Cold-producing medium after compressor compresses is entered vertical condensing heat-exchanging pipe 1 by inlet 2, and at vertical condensing heat-exchanging pipe
Constantly condensing in 1, cold-producing medium flows downward along the inwall of vertical condensing heat-exchanging pipe 1 under gravity, and is collected to next part
Liquid pipe 3；
Meanwhile, the cooling water in upper pool 5 is flowed out by the dentation gap between this dentation through hole 7 and outer tube wall, and
Whole outer tube wall along vertical condensing heat-exchanging pipe 1 flows downward, and the water coolers flowed downward overlays on vertical condensing heat-exchanging pipe 1
Whole outer tube wall so that it is form, at whole outer tube wall, the water film persistently flowed downward, this water film formed falling liquid film steam
Send out, absorb heat, thus reduce the condensation temperature of vertical condensing heat-exchanging pipe 1 inner refrigerant, improve refrigerating efficiency.Dentation through hole 7
It is also similar to that flakes.
This method also includes one for the cooling water in collecting-tank 6 is fed back to the backwater step of upper pool 5 and one
Upper pool 5 automatic water supplement step；When the cooling water of upper pool 5 is less than designated water level due to evaporation, float-valve type automatic water supplement
The valve of mechanism 9 automatically opens up, and then upper pool 5 is carried out moisturizing；When the water level of upper pool 5 reaches designated water level, this floats
The valve of valve type automatic water supplement mechanism 9 is automatically switched off, and then stops moisturizing.
As it has been described above, just can preferably realize the present invention.
Embodiments of the present invention are also not restricted to the described embodiments, other any spirit without departing from the present invention
With the change made under principle, modify, substitute, combine, simplify, all should be the substitute mode of equivalence, be included in the present invention's
Within protection domain.
Claims (9)
1. a vertical coiled pipe falling film evaporation condenser, including the vertical condensing heat-exchanging pipe (1) of array arrangement, this vertically condenses and changes
The kink of heat pipe (1) lower end connects with lower collector tube (3) respectively；It is characterized in that: described vertical condensing heat-exchanging pipe (1) upper end
Kink be provided with upper pool (5), in the kink of its upper end is placed in this upper pool (5), and be submerged in upper pool (5) cold
But under water liquid level；
Cooling water in described upper pool (5) is by being opened in the cloth water-bound of upper pool (5) bottom, along vertical condensing heat-exchange
The whole outer tube wall of pipe (1) flows downward, and the water coolers flowed downward overlays on the whole outer tube wall of vertical condensing heat-exchanging pipe (1)
Face, and form the water film persistently flowed downward；Vertical condensing heat-exchanging pipe (1) is lowered the temperature by this water film.
The most vertical coiled pipe falling film evaporation condenser, it is characterised in that: described vertical condensing heat-exchanging pipe
(1) collecting-tank (6) it is provided with below the kink of lower end；Collecting-tank (6) is for collecting from the cooling water in upper pool (5)；
Described vertical coiled pipe falling film evaporation condenser also includes one for the cooling water in collecting-tank (6) is fed back to upper pool
(5) water recovery apparatus.
The most vertical coiled pipe falling film evaporation condenser, it is characterised in that: described water recovery apparatus includes drawing water
Pump (8) and return pipe (81).
The most vertical coiled pipe falling film evaporation condenser, it is characterised in that: described upper pool (5) is provided with benefit
The mouth of a river, water supplement port connection external water source；Water supplement port is provided with float-valve type automatic water supplement mechanism (9)；
When the cooling water in upper pool (5) is less than designated water level due to evaporation, the valve of this float-valve type automatic water supplement mechanism (9)
Door automatically opens up, and upper pool (5) is carried out moisturizing；
When the cooling water water level in upper pool (5) reaches designated water level, the valve of this float-valve type automatic water supplement mechanism (9) is automatic
Close, stop moisturizing.
The most vertical coiled pipe falling film evaporation condenser, it is characterised in that: described cloth water-bound for running through on
The dentation through hole (7) of bottom, pond (5)；Vertically the outer tube wall of condensing heat-exchanging pipe (1) is through this dentation through hole (7), cooling water by
Dentation gap between this dentation through hole (7) and outer tube wall is flowed out, and along vertical condensing heat-exchanging pipe (1) whole outer tube wall to
Lower flowing, the water coolers flowed downward overlays on the whole outer tube wall of vertical condensing heat-exchanging pipe (1) so that it is at whole outer tube wall
Face forms the water film persistently flowed downward, and then is realized the cooling of vertical condensing heat-exchanging pipe (1) by this water film.
The most vertical coiled pipe falling film evaporation condenser, it is characterised in that: the end of described lower collector tube (3)
Portion is provided with liquid seal device (4).
7. the method reducing condenser tube inner refrigerant condensation temperature, it is characterised in that use in claim 1 to 6 arbitrary
The described vertical coiled pipe falling film evaporation condenser of item realizes, and it comprises the steps:
Cold-producing medium after compressor compresses is entered vertical condensing heat-exchanging pipe (1) by inlet (2), and at vertical condensing heat-exchanging pipe
(1) constantly condensing in, cold-producing medium flows downward along the inwall of vertical condensing heat-exchanging pipe (1) under gravity, and is collected to
Lower collector tube (3)；
Meanwhile, the cooling water in upper pool (5) is flowed out by the dentation gap between this dentation through hole (7) and outer tube wall, and
Whole outer tube wall along vertical condensing heat-exchanging pipe (1) flows downward, and the water coolers flowed downward overlays on vertical condensing heat-exchange
The whole outer tube wall of pipe (1) so that it is form the water film persistently flowed downward at whole outer tube wall, this water film forms fall
Film evaporates, and absorbs heat, thus reduces the condensation temperature of vertical condensing heat-exchanging pipe (1) inner refrigerant, improves refrigerating efficiency.
The method reducing condenser tube inner refrigerant condensation temperature the most according to claim 7, it is characterised in that also include one
The individual backwater step for the cooling water in collecting-tank (6) being fed back to upper pool (5).
The method reducing condenser tube inner refrigerant condensation temperature the most according to claim 7, it is characterised in that also include one
Individual upper pool (5) automatic water supplement step；
When the cooling water of upper pool (5) is less than designated water level due to evaporation, the valve of float-valve type automatic water supplement mechanism (9) is certainly
Move and open, and then upper pool (5) is carried out moisturizing；
When the water level of upper pool (5) reaches designated water level, the valve of this float-valve type automatic water supplement mechanism (9) is automatically switched off, and enters
And stop moisturizing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610785888.3A CN106225334A (en) | 2016-08-31 | 2016-08-31 | A kind of vertically coiled pipe falling film evaporation condenser and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610785888.3A CN106225334A (en) | 2016-08-31 | 2016-08-31 | A kind of vertically coiled pipe falling film evaporation condenser and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106225334A true CN106225334A (en) | 2016-12-14 |
Family
ID=58072802
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610785888.3A Pending CN106225334A (en) | 2016-08-31 | 2016-08-31 | A kind of vertically coiled pipe falling film evaporation condenser and method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108771947A (en) * | 2018-06-11 | 2018-11-09 | 北京科技大学 | A kind of high-humidity flue gas depth waste heat recovery and CO2Trap integrated apparatus and method |
| CN115615054A (en) * | 2022-09-27 | 2023-01-17 | 广东省安佳空调制冷有限公司 | Falling curtain type condenser |
| CN117398711A (en) * | 2023-12-15 | 2024-01-16 | 山东长信化学科技股份有限公司 | Condensing and separating system for removing light components |
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| CN1055421A (en) * | 1991-05-25 | 1991-10-16 | 北京化工学院 | Falling-film absorption type heat pump |
| CN1394662A (en) * | 2002-08-08 | 2003-02-05 | 刘小江 | Reduced pressure evaporation falling-film heat exchanging equipment |
| CN2886446Y (en) * | 2006-04-18 | 2007-04-04 | 冰人制冰系统设备(重庆)有限公司 | Falling-film type water chiller |
| KR20110105561A (en) * | 2010-03-19 | 2011-09-27 | 한라공조주식회사 | Condenser having integrated receiver drier |
| CN104990316A (en) * | 2015-07-31 | 2015-10-21 | 华南理工大学 | Superheat section and condensing section-separately arranged evaporation type condensation heat exchanger and method thereof |
| CN206207807U (en) * | 2016-08-31 | 2017-05-31 | 华南理工大学 | A kind of vertical coiled pipe falling film evaporation condenser |
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2016
- 2016-08-31 CN CN201610785888.3A patent/CN106225334A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1055421A (en) * | 1991-05-25 | 1991-10-16 | 北京化工学院 | Falling-film absorption type heat pump |
| CN1394662A (en) * | 2002-08-08 | 2003-02-05 | 刘小江 | Reduced pressure evaporation falling-film heat exchanging equipment |
| CN2886446Y (en) * | 2006-04-18 | 2007-04-04 | 冰人制冰系统设备(重庆)有限公司 | Falling-film type water chiller |
| KR20110105561A (en) * | 2010-03-19 | 2011-09-27 | 한라공조주식회사 | Condenser having integrated receiver drier |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108771947A (en) * | 2018-06-11 | 2018-11-09 | 北京科技大学 | A kind of high-humidity flue gas depth waste heat recovery and CO2Trap integrated apparatus and method |
| CN115615054A (en) * | 2022-09-27 | 2023-01-17 | 广东省安佳空调制冷有限公司 | Falling curtain type condenser |
| CN117398711A (en) * | 2023-12-15 | 2024-01-16 | 山东长信化学科技股份有限公司 | Condensing and separating system for removing light components |
| CN117398711B (en) * | 2023-12-15 | 2024-02-27 | 山东长信化学科技股份有限公司 | Condensing and separating system for removing light components |
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