CN101706184A - Evaporative condenser - Google Patents
Evaporative condenser Download PDFInfo
- Publication number
- CN101706184A CN101706184A CN200910253879A CN200910253879A CN101706184A CN 101706184 A CN101706184 A CN 101706184A CN 200910253879 A CN200910253879 A CN 200910253879A CN 200910253879 A CN200910253879 A CN 200910253879A CN 101706184 A CN101706184 A CN 101706184A
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- condenser
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- condenser pipe
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 45
- 238000012856 packing Methods 0.000 claims abstract description 8
- 230000001788 irregular Effects 0.000 claims abstract description 6
- 239000007921 spray Substances 0.000 abstract description 3
- 238000005457 optimization Methods 0.000 abstract 1
- 239000003507 refrigerant Substances 0.000 description 9
- 238000012546 transfer Methods 0.000 description 9
- 238000009833 condensation Methods 0.000 description 8
- 230000005494 condensation Effects 0.000 description 8
- 238000001816 cooling Methods 0.000 description 7
- 239000012530 fluid Substances 0.000 description 7
- 239000000498 cooling water Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 238000005057 refrigeration Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 239000002826 coolant Substances 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- 239000006200 vaporizer Substances 0.000 description 1
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Abstract
The invention discloses an evaporative condenser having high heat exchanging efficiency, which comprises a direct-coupled exhaust fan, a spray header nozzle, a high pressure air inlet pipe, an superheat air returning pipe, a condensing coil, a high pressure drain pipe, a low pressure air inlet pipe, an air inlet, a heat exchange packing layer, a water feeding pipe, a water circulating pump, a filter, a filter screen, a water tank, an overhauling channel and a superheat pipe group, wherein the condensing coil comprises a spiral condenser pipe of which the pipe periphery is in spiral line point contact; a continuous irregular spiral channel is arranged between pipe bundles; the curvature of the top end face of the spiral condenser pipe is greater than that of other parts; the outer surface of the alternative curved surface of the spiral condenser pipe is twisted to form a spiral; and the cross section of the spiral condenser pipe is a variable cross section. By changing the structural form of the condenser pipe, the evaporative condenser of the invention changes the flow and the water film coverage of steam, increases the heat exchanging efficiency, and improves the energy-saving optimization of the evaporative condenser by increasing the mutual heat exchanging efficiency between the superheat returned air of a refrigerating pipe and condensed water.
Description
Technical field
The present invention relates to a kind of condenser, relate in particular to a kind of evaporative condenser.
Background technology
Condenser is as one of main heat-exchange apparatus of industries such as refrigeration, metallurgy and chemical industry, and range of application is very extensive.Condenser commonly used generally can be divided into three types by its cooling medium and the type of cooling: water-cooled (being divided into shell-tube type, bushing type, immersion again), air-cooled type, vaporation-type, wherein evaporative condenser is economized the consumption heat transmission equipment as a kind of novel energy-conserving, simplified cooling process, compact conformation, floor space is less, and easy for installation, the maintenance work amount is little, has obtained huge development and application widely in recent years especially.
Evaporative condenser integrates conventional tube shell tube condenser, cooling tower, circulating water pool, water pump etc., with the mixture of water and air as cooling medium, the latent heat of condensation that the gaseous refrigerant condensation process is discharged relies on the cooling evaporation of water to be pulled away, actual water consumption is about water-cooled 5～10%, condensation temperature is lower with water cooled condenser than air-cooled, can make the input power of compressor reduce 3～5%.Because rely on evaporation latent heat to come the heat exchange cooling, the water yield of cooling water and the change of water temperature are less to the condensation effect influence, operating condition is more stable.
Though evaporative condenser is a kind of energy-efficient heat transmission equipment, it still exists certain limitation and shortcoming.At present in evaporative condenser, be tending towards the surface with respect to the film condensation of coil pipe more, flowing of steam and condensate liquid is not subjected to the restriction of certain mobile size.In the horizontal tube condenser system of forced convection, steam flow heat exchanging efficient has strong influence, and steam flow is subjected to the influence of steam at the tube wall cohesion rate, and heat exchanger effectiveness is low.
Summary of the invention
The purpose of this invention is to provide the high evaporative condenser of a kind of heat exchanger effectiveness.
For achieving the above object, the technical solution used in the present invention is:
A kind of evaporative condenser, comprise the associated mode air exhauster, the shower water ozzle, high-pressure pipe, overheated muffler, condenser coil, the high pressure drain pipe, low-pressure inlet pipe, air inlet, the heat exchange packing layer, upper hose, water circulating pump, filter, filter screen, water tank, access path, the superheater tube group, it is characterized in that: condenser coil comprises spiral condenser pipe, the pipe outer rim of spiral condenser pipe is the contact of helix point, it between the tube bank continuous irregular spirality channel, the top end face curvature of spiral condenser pipe is greater than other positions, the alternating curved outer surface distortion of spiral condenser pipe, form helical form, the cross section of spiral condenser pipe is a variable cross-section.
The present invention is by changing the version of condenser pipe, change steam flow and moisture film covers, increase heat exchange efficiency, the mutual heat exchange of and condensed water overheated by the return-air that increases refrigeration pipe improves the evaporative condenser energy saving optimizing.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the structural representation of superheater among the present invention;
Fig. 3 is the section structure schematic diagram of spiral condenser pipe among the present invention;
Fig. 4 is the structural representation of spiral condenser pipe among the present invention.
In the accompanying drawing:
1, associated mode air exhauster 2, shower water ozzle 3, high-pressure pipe 4, overheated muffler
5, condenser coil 6, high pressure drain pipe 7, low-pressure inlet pipe 8, air inlet
9, heat exchange packing layer 10, upper hose 11, water circulating pump 12, filter
13, filter screen 14, water tank 15, access path 16, superheater tube group
17, overheated return-air collector 18, sewage draining exit 19, spiral condenser pipe
The specific embodiment
Below in conjunction with the drawings and specific embodiments the present invention is further described:
A kind of evaporative condenser, as Fig. 1, Fig. 2, Fig. 3, shown in Figure 4, comprise associated mode air exhauster 1, shower water ozzle 2, high-pressure pipe 3, overheated muffler 4, condenser coil 5, high pressure drain pipe 6, low-pressure inlet pipe 7, air inlet 8, heat exchange packing layer 9, upper hose 10, water circulating pump 11, filter 12, filter screen 13, water tank 14, access path 15, superheater tube group 16, condenser coil 5 comprises spiral condenser pipe 19, the pipe outer rim of spiral condenser pipe 19 is the contact of helix point, it between the tube bank continuous irregular spirality channel, the top end face curvature of spiral condenser pipe 19 is greater than other positions, the alternating curved outer surface distortion of spiral condenser pipe 19, form helical form, the cross section of spiral condenser pipe 19 is a variable cross-section.
The present invention relates to refrigeration technology field, be used for big-and-middle-sized food refrigerated and freezer.
At present about many in the patent of evaporative condenser with pipe and elliptical tube condenser pipe as cold-producing medium, the pipe outer rim of the spiral condenser pipe among the present invention is the contact of helix point, form continuous irregular spirality channel between the tube bank, air stream is subjected to action of centrifugal force therein and constantly changes speed and direction, thereby strengthened the radially mixing of air stream, therefore spiral condenser pipe is the most obvious with respect to pipe and the formed eddy current of elliptical tube, and formed air flow field perturbation is also the strongest in the tube bank.
The top end face curvature of the spiral condenser pipe among the present invention is bigger, water is easy to adhere to and form moisture film, make air be easy to wrap moisture film, thereby it is two-sided moistening to form tube-surface, increased the moisture film coverage rate, and alternating curved bellows windward side eddy current behind is obviously also many than pipe and elliptical tube.Average big than elliptical tube and pipe of formed thermograde causes the driving force of heat transfer of alternating curved on average big than pipe and elliptical tube around the spiral condenser pipe, and this has just increased heat transfer efficiency greatly.
The alternating curved outer surface distortion of the spiral condenser pipe among the present invention forms helical form, has increased heat transfer area.In addition, because its cross section is a kind of typical variable cross-section, form continuous, irregular spirality channel between the heat-exchanging tube bundle, air can produce during forced flow therein complicated gig flow point from the strong disturbance phenomenon of mixing and depositing, form secondary circulation at wall, make segment fluid flow directly wash away wall in some place, significantly attenuate terminal pressure.Form the wake flow that breaks away from tube wall when the fluid in the tube bank passes through the contact point of adjacent pipe, strengthened the turbulent extent of fluid equally, destroyed the boundary layer of fluid on tube wall, reduced thermal resistance, increase thermograde, improved driving force of heat transfer, strengthened heat transfer effect.
Spiral condenser pipe of the present invention is as the main body of evaporative condenser, and condenser system has following distinguishing feature with respect to circle and oval condenser pipe in the past:
1, spiral condenser pipe surface is can be two-sided moistening and increase the moisture film coverage rate, overcome the shortcoming of existing tubular easy formation " dry spot ", slow down scale velocity, simultaneously because the guiding and the stress effect of helical channel, the easy film forming of moisture film and coming off, can accelerate the moisture film renewal rate, reduce water film thickness, and increase the moisture film less turbulence;
2, air constantly changes the flow direction between spiral condenser pipe, promptly keep higher flow velocity with less flow, increase the severe degree of heat and mass, and because the rationalization that local velocity district and fluid distribute, the heat conduction is balanced more, and the fluid flow path lengthening also can make the caloic exchange more abundant;
3, take helix tube and straight tube alternately to occur, pigtail can be accelerated the process of refrigerastion of refrigerant vapour, and the straight tube steady section then helps condensate liquid and separates;
4, reduce flow resistance by heat exchanger tube oblique arrangement and coil pipe series of modular.
The factor that influences the evaporative condenser heat exchange property has a lot, resembles water sprinkle density and temperature, the malleation of the air inlet air output that heads on, and the exhaust air rate of the negative pressure axial flow blower of air outlet and wet-bulb temperature etc. can influence the evaporative condenser heat exchange property.Total heat and mass transfer coefficient of existing evaporative condenser generally can increase with the sprinkle density and the face velocity of cooling water, when sprinkle density increase to 0.05kg/ (ms), when face velocity increases to 3.0m/s, it is constant that total heat and mass transfer coefficient can be tending towards, and operating mode at this moment is the best heat exchange operating mode of evaporative condenser just.
Changing sprinkle density and wind speed has certain relation to the heat exchange property that improves evaporative condenser, but this does not embody the effect of the energy-conservation province consumption of evaporative condenser self.The present invention takes shower water and refrigerating system low-temperature return-air house steward's heat exchange, temperature with the reduction shower water is a purpose, and reached the suction temperature of hot vaporizer, the cold-producing medium of return piston formula compresser cylinder is vaporized fully, stopped the generation owing to the band liquid hammer fault that liquid caused in the return-air of Piston Refrigerant Compreessor, cross the delivery temperature of cold cold-producing medium simultaneously, make whole refrigeration system be in power save mode.The every reduction of condensation temperature once, the operation energy consumption of compressor can reduce by 2%～5%, and optimal design of the present invention is compared with existing evaporative condenser, can make condensation temperature reduce by 5～8 ℃, especially use the large-scale low-temperature refrigeration system, energy-conservation effectiveness is inestimable.
The present invention mainly comprises associated mode air exhauster, shower water ozzle, high-pressure pipe, overheated muffler, condenser coil, high pressure drain pipe, low-pressure inlet pipe, air inlet, heat exchange packing layer, upper hose, water circulating pump, filter, filter screen, water tank, access path, superheater tube group.The shower water of condensating refrigerant is from the recirculated water of water tank, extract by water circulating pump, arrive the shower water ozzle through upper hose, the spray that cooling water is evenly continuous is after forming the moisture film cover layer on the surface of superheater tube group, to returned the refrigerant superheat of the low temperature vapour-liquid mixed state of the low-pressure inlet pipe of flowing through in the superheater tube group by evaporimeter.Because heat exchange, the cooling water of overheated muffler of the flowing through cooling of being lowered the temperature, the high temperature and high pressure gaseous refrigerant that flow to being entered in the condenser coil by compressor cools off, the spiral condenser pipe curvature bigger top end face of shower water in condenser coil is easy to adhere to and form moisture film, and make air be easy to wrap moisture film and to form tube-surface two-sided moistening, increased the moisture film coverage rate, its effect is more obvious at the ripple windward side of alternating curved eddy current behind than present existing elliptical tube and pipe, formed on every side thermograde mean value also strengthens, cause the driving force of heat transfer of alternating curved to strengthen, this has just increased heat transfer efficiency greatly.The chilling spray current are through PVC heat exchange packing layer, the PVC heat exchange packing layer that flow over of the air intake by air inlet, and the temperature of cooling water reduces once more, goes forward side by side into water tank, and screen cloth, filter enter upper hose by water circulating pump again and continue circular flow after filtration.The condenser coil that the associated mode air exhauster contains the high warm refrigerant of high pressure with the evaporative condenser casing carries out wet-hot steam that heat exchange produced to be extracted out and goes, and by access path, and the moisture content that evaporated and the ruuning situation of equipment are done regular inspection.Wherein the high pressure admission mouth of pipe of condenser coil upper end is connected with the exhaust outlet of compressor, and the high pressure fluid mouth of pipe of condenser coil lower end is connected with throttling arrangement.
The structure of return-air superheater connects the many overheated mufflers that communicate by low-pressure inlet pipe by overheated return-air collector and rearranges, the outlet of the overheated return-air collector of overheated muffler upper end is connected with the return-air mouth of compressor cylinder, make the gaseous refrigerant after overheated enter compressor, the sewage draining exit of overheated return-air collector lower end can regularly be got rid of greasy dirt.Because condensed water that the shower water ozzle flows out and the low temperature agent in the overheated muffler produce heat exchange, make the high temperature refrigerant in the cooling condensation coil pipe that the temperature of condensed water helps after being cooled, and the cold-producing medium that is not vaporized in the overheated muffler has obtained sufficient vaporization.
Claims (1)
1. evaporative condenser, comprise associated mode air exhauster (1), shower water ozzle (2), high-pressure pipe (3), overheated muffler (4), condenser coil (5), high pressure drain pipe (6), low-pressure inlet pipe (7), air inlet (8), heat exchange packing layer (9), upper hose (10), water circulating pump (11), filter (12), filter screen (13), water tank (14), access path (15), superheater tube group (16), it is characterized in that: condenser coil (5) comprises spiral condenser pipe (19), the pipe outer rim of spiral condenser pipe (19) is the contact of helix point, it between the tube bank continuous irregular spirality channel, the top end face curvature of spiral condenser pipe (19) is greater than other positions, the alternating curved outer surface distortion of spiral condenser pipe (19), form helical form, the cross section of spiral condenser pipe (19) is a variable cross-section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910253879A CN101706184A (en) | 2009-12-02 | 2009-12-02 | Evaporative condenser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910253879A CN101706184A (en) | 2009-12-02 | 2009-12-02 | Evaporative condenser |
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| Publication Number | Publication Date |
|---|---|
| CN101706184A true CN101706184A (en) | 2010-05-12 |
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|---|---|---|---|
| CN200910253879A Pending CN101706184A (en) | 2009-12-02 | 2009-12-02 | Evaporative condenser |
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| Country | Link |
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| CN (1) | CN101706184A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102252536A (en) * | 2011-04-28 | 2011-11-23 | 上海理工大学 | Evaporative cooler or condenser of full pipe bundle distributed water |
| CN103148644A (en) * | 2013-03-22 | 2013-06-12 | 郭永 | Micro-channel falling film evaporation type condenser |
| CN103851836A (en) * | 2012-12-07 | 2014-06-11 | 昆山台佳机电有限公司 | Upper air inlet type evaporative condensing device |
| CN106006797A (en) * | 2016-08-02 | 2016-10-12 | 北京科净源科技股份有限公司 | Evaporation condenser circulating water treatment method |
| CN106370026A (en) * | 2016-10-20 | 2017-02-01 | 湖南野森环保科技有限责任公司 | Environment-friendly type radiator for metallurgical plant |
| CN113465436A (en) * | 2021-06-22 | 2021-10-01 | 南京航空航天大学 | Variable-curvature coiled steam generator spiral coil assembly |
| CN113494856A (en) * | 2020-03-20 | 2021-10-12 | 中国科学院广州能源研究所 | Vertical falling film evaporation type condenser |
| CN113587497A (en) * | 2021-07-12 | 2021-11-02 | 浙江国祥股份有限公司 | Double-cooling composite efficient evaporative condenser |
| CN113847704A (en) * | 2021-08-26 | 2021-12-28 | 青岛海尔空调电子有限公司 | Fault judgment method of air conditioning unit |
| CN119436624A (en) * | 2025-01-13 | 2025-02-14 | 保定炬地新能源科技有限公司 | A condenser system with integrated temperature control optimization |
-
2009
- 2009-12-02 CN CN200910253879A patent/CN101706184A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102252536A (en) * | 2011-04-28 | 2011-11-23 | 上海理工大学 | Evaporative cooler or condenser of full pipe bundle distributed water |
| CN103851836A (en) * | 2012-12-07 | 2014-06-11 | 昆山台佳机电有限公司 | Upper air inlet type evaporative condensing device |
| CN103148644A (en) * | 2013-03-22 | 2013-06-12 | 郭永 | Micro-channel falling film evaporation type condenser |
| CN103148644B (en) * | 2013-03-22 | 2015-12-16 | 郭永 | Microchannel falling-film evaporating condenser |
| CN106006797A (en) * | 2016-08-02 | 2016-10-12 | 北京科净源科技股份有限公司 | Evaporation condenser circulating water treatment method |
| CN106370026A (en) * | 2016-10-20 | 2017-02-01 | 湖南野森环保科技有限责任公司 | Environment-friendly type radiator for metallurgical plant |
| CN113494856A (en) * | 2020-03-20 | 2021-10-12 | 中国科学院广州能源研究所 | Vertical falling film evaporation type condenser |
| CN113465436A (en) * | 2021-06-22 | 2021-10-01 | 南京航空航天大学 | Variable-curvature coiled steam generator spiral coil assembly |
| CN113587497A (en) * | 2021-07-12 | 2021-11-02 | 浙江国祥股份有限公司 | Double-cooling composite efficient evaporative condenser |
| CN113847704A (en) * | 2021-08-26 | 2021-12-28 | 青岛海尔空调电子有限公司 | Fault judgment method of air conditioning unit |
| CN119436624A (en) * | 2025-01-13 | 2025-02-14 | 保定炬地新能源科技有限公司 | A condenser system with integrated temperature control optimization |
| CN119436624B (en) * | 2025-01-13 | 2025-03-11 | 保定炬地新能源科技有限公司 | Condenser system integrating temperature control optimization |
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Open date: 20100512 |