CN113494856A - Vertical falling film evaporation type condenser - Google Patents

Vertical falling film evaporation type condenser Download PDF

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Publication number
CN113494856A
CN113494856A CN202010200502.4A CN202010200502A CN113494856A CN 113494856 A CN113494856 A CN 113494856A CN 202010200502 A CN202010200502 A CN 202010200502A CN 113494856 A CN113494856 A CN 113494856A
Authority
CN
China
Prior art keywords
vertical
falling film
condensing
vertical falling
heat exchange
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202010200502.4A
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Chinese (zh)
Inventor
朱冬生
陈二雄
刘世杰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangzhou Institute of Energy Conversion of CAS
Original Assignee
Guangzhou Institute of Energy Conversion of CAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Guangzhou Institute of Energy Conversion of CAS filed Critical Guangzhou Institute of Energy Conversion of CAS
Priority to CN202010200502.4A priority Critical patent/CN113494856A/en
Publication of CN113494856A publication Critical patent/CN113494856A/en
Pending legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28BSTEAM OR VAPOUR CONDENSERS
    • F28B1/00Condensers in which the steam or vapour is separate from the cooling medium by walls, e.g. surface condenser
    • F28B1/02Condensers in which the steam or vapour is separate from the cooling medium by walls, e.g. surface condenser using water or other liquid as the cooling medium
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D5/00Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, using the cooling effect of natural or forced evaporation
    • F28D5/02Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, using the cooling effect of natural or forced evaporation in which the evaporating medium flows in a continuous film or trickles freely over the conduits
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00Tubular elements; Assemblies of tubular elements
    • F28F1/02Tubular elements of cross-section which is non-circular
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F25/00Component parts of trickle coolers
    • F28F25/02Component parts of trickle coolers for distributing, circulating, and accumulating liquid
    • F28F25/08Splashing boards or grids, e.g. for converting liquid sprays into liquid films; Elements or beds for increasing the area of the contact surface
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02Header boxes; End plates

Abstract

The invention relates to the technical field of condensers, in particular to a vertical falling film evaporative condenser, which comprises a tank body, wherein a vertical falling film efficient condensing device, a spraying system and a water collecting disc are arranged in the tank body; the vertical falling film high-efficiency condensing device comprises a first inlet header, a first outlet header and a plurality of vertical condensing devices, wherein the vertical condensing devices are vertically arranged between the first inlet header and the first outlet header; the vertical condensing device comprises a second inlet header, a second outlet header and vertical condensing heat exchange tubes, and the vertical condensing heat exchange tubes are vertically arranged between the second inlet header and the second outlet header. Compared with the horizontal coil or the coil arranged in a regular triangular staggered manner in the prior art, the spray water forms a descending water film on the outer surface of the vertical condensation heat exchange tube from top to bottom; under the effect of shower water, under the condition of the same water yield, the flow speed of the shower water forming the water film can be accelerated, and the condensation effect is realized more efficiently.

Description

Vertical falling film evaporation type condenser
Technical Field
The invention relates to the technical field of condensers, in particular to a vertical falling film evaporative condenser.
Background
The closed cooling tower is a high-efficiency cooling device, mainly utilizes the evaporation latent heat of water to take away the heat of process fluid, completes the cooling of the process fluid, and simultaneously realizes the cyclic utilization of spray water, and mainly utilizes the evaporation cooling technology, so that the process fluid in the pipe can not generate phase change.
The evaporative condenser utilizes an evaporative condensation technology to manage the phase change of the process fluid. For evaporative condensers, the process fluid flows within the coil, conducting heat out of the tube through the tube walls, and the process fluid condenses from a gaseous state to a liquid state.
Meanwhile, spray water is sprayed outside the pipe, a water film is formed on the outer wall of the pipe, and a heat exchange process of heat transfer and mass transfer is carried out outside the pipe through spray evaporation under the action of air, so that heat transfer is realized. The evaporative condenser can ensure that the working medium in the pipe is not polluted, well protects the high-efficiency operation of the main equipment and prolongs the service life.
The tubular evaporative cooling coil and the filler heat exchange layer are used as core components of the evaporative condenser, and the performance of the tubular evaporative cooling coil and the filler heat exchange layer directly influences the cooling effect of the evaporative condenser. The evaporative condenser filler heat exchange layer has the function of further cooling spray water which is heated by heat exchange with process fluid in the coil pipe by increasing the contact surface area of water and air and prolonging the contact time, so that the efficiency of the cooling tower is improved.
The existing evaporative condenser mostly adopts a horizontal tube type heat exchanger as heat exchange equipment, and a coil pipe mostly adopts a smooth metal round tube, so that the heat exchange efficiency is relatively low, the material consumption is high, the manufacturing cost is high, and the use and the popularization of the evaporative condenser are limited to a certain extent due to the factors.
In the horizontal coil evaporative condenser, spray water collides with a smooth circular tube for heat exchange, and when the spray water flow is large, the coil is easy to resonate, and the collision noise is large. The spray water flows from top to bottom, the cooling water in the pipe flows horizontally, the spray water and the cooling water flow in a staggered manner, and the logarithmic mean temperature difference of the spray water and the cooling water is smaller than that of a pure countercurrent; in addition, because the coil pipes are mostly arranged in a regular triangle staggered mode, the area of the cross section of air circulation is small, the resistance is large, and scales are easily formed on the windward side, so that the heat exchange effect is influenced and the service life is prolonged.
The evaporative condenser is widely applied to cooling systems in the fields of refrigeration, electric power, chemical industry, food and the like, and the condenser is used as important equipment, so that the selection of the scheme directly influences the overall performance and energy consumption of the system. But also the requirements for size, weight, capacity and efficiency of the evaporative condenser are more and more emphasized in the aspects of high efficiency and energy saving.
Disclosure of Invention
The invention aims to: the invention provides a method for solving the problems in the prior art.
In order to solve the problems in the prior art, the invention adopts the following technical scheme:
a vertical falling film evaporative condenser comprises a tank body, wherein a vertical falling film efficient condensing device, a spraying system and a water collecting tray are arranged in the tank body; the vertical falling film high-efficiency condensing device is arranged at the upper part of the vertical falling film evaporative condenser and comprises a first inlet header, a first outlet header and a plurality of vertical condensing devices, and the vertical condensing devices are vertically arranged between the first inlet header and the first outlet header; the vertical condensing device comprises a second inlet header, a second outlet header and vertical condensing heat exchange tubes, and the vertical condensing heat exchange tubes are vertically arranged between the second inlet header and the second outlet header; a plurality of second inlet headers are all horizontally connected with the first inlet header, and a plurality of second outlet headers are all horizontally connected with the first outlet header; the spraying system comprises a spraying device, the spraying device is arranged above the vertical falling film efficient condensing device, and the water collecting tray is arranged below the vertical falling film efficient condensing device.
As an improvement of the technical solution of the vertical falling film evaporative condenser of the present invention, the first inlet header is disposed at the upper part of the vertical falling film high efficiency condensing device, and the first outlet header is disposed at the lower part of the vertical falling film high efficiency condensing device.
As an improvement of the technical scheme of the vertical falling film evaporative condenser, the first inlet header and the first outlet header are both arranged at the upper part of the vertical falling film high-efficiency condensing device.
As an improvement of the technical scheme of the vertical falling film evaporative condenser, the vertical condensation heat exchange tube is a twisted tube.
As an improvement of the technical scheme of the vertical falling film evaporative condenser, the twisted tubes are elliptical tubes, and when the center distance between two adjacent elliptical tubes is equal to the long axis distance outside the elliptical tubes, a plurality of contact points exist between the two elliptical tubes.
As an improvement of the technical scheme of the vertical falling film evaporative condenser, gaps with equal distances exist between the adjacent vertical condensing tubes.
As an improvement of the technical scheme of the vertical falling film evaporative condenser, the gap is 5-100 mm.
As an improvement of the technical scheme of the vertical falling film evaporative condenser, the gap is internally provided with a filler.
As an improvement of the technical scheme of the vertical falling film evaporative condenser, the spraying system further comprises a spraying water pump and a water pipe, and the spraying water pump, the spraying device and the water collecting tray are connected through the water pipe.
As an improvement of the technical scheme of the vertical falling film evaporative condenser, the side wall of the box body is provided with a side vent, the upper part of the box body is provided with an upper vent, and a fan is arranged in the upper vent.
The invention has the beneficial effects that:
compared with the horizontal coil or the coil arranged in the regular triangle staggered manner in the prior art, the vertical condensation heat exchange tube has the advantages that the descending water film is formed on the outer surface of the vertical condensation heat exchange tube from top to bottom by the spray water under the action of gravity, meanwhile, the flowing speed of the spray water forming the water film can be accelerated under the condition of the same water volume under the action of the spray water, and the condensation effect is realized more efficiently.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural diagram of a first embodiment of a vertical falling film high-efficiency condensing device in the invention;
FIG. 3 is a left side view of FIG. 2;
FIG. 4 is a schematic structural diagram of a second embodiment of the vertical falling film high-efficiency condensing device in the invention;
FIG. 5 is a left side view of FIG. 4;
FIG. 6 is a schematic structural diagram of a third embodiment of the vertical falling film high efficiency condensing unit in the invention;
fig. 7 is a left side view of fig. 6.
Description of reference numerals: 1-a box body; 2-vertical falling film high-efficiency condensing equipment; 3-a first inlet header; 4-a first outlet header; 5-a second inlet header; 6-a second outlet header; 7-vertical condensation heat exchange tubes; 8-a spraying device; 9-a water collecting tray; 10-clearance; 11-a water pipe; 12-a spray water pump; 13-a fan.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of embodiments of the present invention, and not all embodiments.
As shown in fig. 1, a vertical falling film evaporative condenser comprises a tank 1, wherein a vertical falling film efficient condensing device 2, a spraying system and a water collecting tray 9 are arranged in the tank 1.
The vertical falling film high-efficiency condensing device 2 is arranged at the upper part of the box body 1, the vertical falling film high-efficiency condensing device 2 comprises a first inlet header 3, a first outlet header 4 and a plurality of vertical condensing devices, and the plurality of vertical condensing devices are vertically arranged between the first inlet header 3 and the first outlet header 4.
The vertical condensing device comprises a second inlet header 5, a second outlet header 6 and vertical condensing heat exchange tubes 7, wherein the vertical condensing heat exchange tubes 7 are vertically arranged between the second inlet header 5 and the second outlet header 6.
A number of second inlet headers 5 are each horizontally connected to the first inlet header 3 and a number of second outlet headers 6 are each horizontally connected to the first outlet header 4.
The spraying system comprises a spraying device 8, the spraying device 8 is arranged above the vertical falling film efficient condensing device 2, and a water collecting tray 9 is arranged below the vertical falling film efficient condensing device 2.
In the present invention, the process fluid passes from the first inlet header 3 into the second inlet header 5, then into the vertical condensing heat exchange tubes 7, then from the vertical condensing heat exchange tubes 7 into the second outlet header 6, then into the first outlet header 4. The vertical arrangement of the present invention is ensured because the vertical condensing heat exchange tubes 7 are vertically disposed between the second inlet header 5 and the second outlet header 6, the second inlet header 5 being connected in parallel with the first inlet header 3, and the second outlet header 6 being connected in parallel with the first outlet header 4. When the vertical falling-film high-efficiency condensing device is used, water is sprayed to the vertical falling-film high-efficiency condensing device 2 through the spraying device 8 in the spraying system, a descending water film flowing from top to bottom is formed on the outer surface of the vertical condensing heat exchange tube 7 by the sprayed water, and the condensing effect is more obvious and more efficient through the heat and moisture exchange of the descending water film and the process fluid in the vertical condensing heat exchange tube 7.
In the invention, the connections between the first inlet header 3 and the second inlet header 5, between the first outlet header 4 and the second outlet header 6, and between the vertical condensation heat exchange tubes 7 and the second inlet header 5 and the second outlet header 6 are all welded, so that the process fluid can be prevented from flowing out of the vertical condensation heat exchange tubes 7, and the spray water can be prevented from entering the vertical condensation heat exchange tubes 7.
As a first embodiment of the vertical falling film high-efficiency condensing device 2 in the invention, as shown in fig. 2 and fig. 3, in the present embodiment, a first inlet header 3 is disposed at the upper part of the vertical falling film high-efficiency condensing device 2, a first outlet header 4 is disposed at the lower part of the vertical falling film high-efficiency condensing device 2, and a plurality of vertical condensing devices are vertically arranged between the first inlet header 3 and the first outlet header 4, namely, a process fluid adopts a flow mode of entering from top to bottom in the vertical condensing heat exchange tubes 7. When the spraying water is sprayed, the spraying direction is from top to bottom, the spraying water flows from top to bottom, the spraying water forms a descending water film on the outer surface of the vertical condensation heat exchange tube 7, the water film absorbs heat of process fluid in the vertical condensation heat exchange tube 7 to generate heat and humidity exchange and heat up, partial water vapor is taken away by air, the temperature of the spraying water is reduced, and the efficient condensation effect through the vertical falling film is realized. Compare with the coil pipe that horizontal coil pipe or regular triangle form fork row mode among the prior art arranged, under the effect of gravity, the shower water down forms descending formula water film on vertical condensation heat exchange tube 7's surface from last, simultaneously, under the effect of shower water, under the condition of the same water yield, can accelerate the flow rate of the shower water that forms the water film, realizes the effect of condensation more efficiently.
In detail, the direction of the shower water outside the vertical condensing heat exchange tube 7 is consistent with the air flowing direction, and the falling water film flows along the axial direction of the vertical condensing heat exchange tube 7. Because the air and the spray water flow on the same direction and pass through the outer surface of the vertical condensation heat exchange tube 7, the spray water can well cover the outer surface of the vertical condensation heat exchange tube 7 and form a descending water film by virtue of the wind force of the water, the outer surface of the vertical condensation heat exchange tube 7 is ensured to be completely wet, and the possibility of dry spots or scaling formed on the windward side of the vertical condensation heat exchange tube 7 by the air and the water flowing in the same direction can be reduced. Meanwhile, when the vertical falling film high-efficiency condenser is used, the falling water film and the air flow are in the same direction and driven by the air flow, the flowing speed of the falling water film is accelerated, the outer surface of the vertical condensation heat exchange tube 7 is in a turbulent flow state, and then the boundary layer of the falling water film on the outer surface of the vertical condensation heat exchange tube 7 is thin, so that the heat exchange effect of the falling water film and the vertical condensation heat exchange tube 7 is better, the utilization rate of spray water can be saved, the power of a spray water pump is reduced, the overall heat exchange effect of the vertical falling film high-efficiency condenser is more efficient, the floor area of the vertical falling film high-efficiency condenser is reduced, the weight of the vertical falling film high-efficiency condenser is reduced, the consumable material of the vertical falling film high-efficiency condenser is saved, and the cost of the vertical falling film high-efficiency condenser is lower.
As a second embodiment of the vertical falling film high-efficiency condensing device 2 according to the present invention, as shown in fig. 4 and 5, each vertical condensing heat exchange tube 7 is a twisted tube based on the first embodiment, and the twisted tube can increase the distance of the water flow forming the water film flowing on the outer surface of the vertical condensing heat exchange tube 7 and prolong the time of the water film flowing.
As a third embodiment of the vertical falling film high efficiency condensing device 2 according to the present invention, as shown in fig. 6 and 7, the first inlet header 3 and the second inlet header 5 are both placed at the upper part of the vertical falling film high efficiency condenser. The process fluid enters the vertical condensation heat exchange tubes 7 through the first inlet header 3 and then flows out of the first outlet header 4, namely the process fluid flows in the vertical condensation heat exchange tubes 7 in an upward-out flowing mode, the effect of two flowing processes of the process fluid is realized in the vertical condensation heat exchange tubes 7, and the vertical falling film high-efficiency condenser is suitable for the situation that when the vertical falling film high-efficiency condenser is in a limited place due to the large volume. Preferably, adjacent vertical condensing heat exchange tubes 7 are close to each other, and the gap 10 is reduced, so that the volume of the vertical falling film high-efficiency condenser can be further reduced. Furthermore, the present embodiment is suitable for the case where the number of flow paths in the vertical condensing heat exchange tube 7 is greater than two.
In detail, in the third embodiment of the vertical falling film high efficiency condensing unit 2 of the present invention, the process fluid enters the vertical condensing heat exchange tubes 7 at the first inlet header 3 and then flows out from the first outlet header 4. The process fluid enters the vertical condensing heat exchange tubes 7 from the first inlet header 3, and the process that the process fluid enters the upper parts of the vertical condensing heat exchange tubes 7, flows downwards along the axial direction of the vertical condensing heat exchange tubes 7 and reaches the lower parts of the vertical condensing heat exchange tubes 7 is a first flow process because the first inlet header 3 is arranged on the upper parts of the vertical falling film high-efficiency condensers. Also since the first outlet header 4 is also placed on the upper part of the vertical falling film high efficiency condenser, the process fluid flowing from the lower part of the vertical condensing heat exchange tubes 7 into the first outlet header 4 is the second flow process. Furthermore, the vertical condensation heat exchange tube 7 is a vertical coil, process fluid flows out of the first outlet header 4 after entering the vertical condensation heat exchange tube 7 from the first inlet header 3 and flowing through a plurality of flowing processes, the flowing time of the process fluid in the vertical condensation heat exchange tube 7 is prolonged through the plurality of flowing processes, and the effect of condensation can be realized more effectively.
Preferably, the twisted pipe is an oval pipe, and when the center distance between two adjacent oval pipes is equal to the long axis distance outside the oval pipe, a plurality of contact points exist between the two oval pipes.
In detail, the horizontal section of the oval tube is oval, and the oval comprises a long end and a short end. Because the twisted pipe is an oval pipe, when the center distance between two adjacent oval pipes is equal to the long-axis distance outside the oval pipe, a plurality of contact points exist between the two oval pipes, namely when the center distance between the two adjacent oval pipes is equal to the long-axis distance outside the oval pipe, the long ends of the adjacent oval pipes are in contact with each other to form a plurality of contact points. When the spray water is sprayed, the situation that the vertical condensation heat exchange tube 7 vibrates can be avoided through a plurality of contact points when the flow of the spray water is large, so that the flow velocity of air outside the vertical condensation heat exchange tube 7 can be improved, the effect of enhancing the heat transfer performance of the air outside the vertical condensation heat exchange tube 7 is realized, and the collision noise between the adjacent vertical condensation heat exchange tubes 7 can be reduced when the vertical condensation heat exchange tube 7 vibrates.
Further, gaps 10 with equal distances exist between adjacent vertical condensation heat exchange tubes 7. In detail, as a plurality of vertical condensing heat exchange tubes 7 are vertically arranged between the first inlet header 3 and the first outlet header 4,
further, gaps 10 with equal distances exist between adjacent vertical condensation heat exchange tubes 7. In detail, as the plurality of vertical condensation heat exchange tubes 7 are vertically arranged between the first inlet header 3 and the first outlet header 4, namely, a plurality of gaps 10 exist in the vertical falling film high-efficiency condenser, and the distances among the gaps are equal, the production of the vertical condensation heat exchange tubes 7 in batches is facilitated, and the production cost is reduced.
Preferably, the gap 10 is 5-100mm, and within the range of the gap 10, the distance between the adjacent vertical condensation heat exchange tubes 7 can be avoided from being too large, and a plurality of contact points can be formed between the adjacent elliptical tubes. Meanwhile, the cooling effect can be ensured.
Further, be provided with the filler in clearance 10, can prolong the time that the water film descends through filling, prevent that the shower water from directly dripping, can also increase the area of contact of shower water and air simultaneously, effectively reduce its temperature, make the heat exchange effect of shower water and vertical condensation heat exchange tube 7 more obvious, more high-efficient.
The spraying system also comprises a spraying water pump 12 and a water pipe 11, wherein the spraying water pump 12, the spraying device 8 and the water collecting tray 9 are connected through the water pipe 11. Spray set 8 is arranged in to the high-efficient condensing equipment 2 shower of vertical falling liquid film, and the shower water drops to water-collecting tray 9 through vertical condensation heat exchange tube 7, then under the effect of water pump, extracts the water in the water-collecting tray 9 to spray set 8 in, forms a hydrologic cycle like this, can reduce the wasting of resources's of shower water the condition and appear.
Preferably, the spraying device 8 comprises at least one spraying nozzle, and each spraying nozzle is arranged right above the vertical falling film efficient condensing device 2, so that the spraying range of the spraying water covers two sides of the vertical falling film efficient condensing device 2.
A side vent is arranged on the side wall of the box body 1, an upper vent is arranged on the upper part of the box body 1, and a fan 13 is arranged in the upper vent. Under the effect of fan 13, the air can be accelerated and enter into in the box 1 from the side vent to from the vent discharge, form the circulation of an air, guarantee the circulation of air in box 1, can realize the effect of condensation more efficiently.
All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.

Claims (10)

1. A vertical falling film evaporative condenser comprises a tank body, and is characterized in that a vertical falling film efficient condensing device, a spraying system and a water collecting tray are arranged in the tank body;
the vertical falling film efficient condensing device is arranged at the upper part of the box body and comprises a first inlet header, a first outlet header and a plurality of vertical condensing devices, and the vertical condensing devices are vertically arranged between the first inlet header and the first outlet header;
the vertical condensing device comprises a second inlet header, a second outlet header and vertical condensing heat exchange tubes, and the vertical condensing heat exchange tubes are vertically arranged between the second inlet header and the second outlet header;
a plurality of second inlet headers are all horizontally connected with the first inlet header, and a plurality of second outlet headers are all horizontally connected with the first outlet header;
the spraying system comprises a spraying device, the spraying device is arranged above the vertical falling film efficient condensing device, and the water collecting tray is arranged below the vertical falling film efficient condensing device.
2. The vertical falling film evaporative condenser, as recited in claim 1, wherein the first inlet header is disposed at an upper portion of the vertical falling film high efficiency condensing unit and the first outlet header is disposed at a lower portion of the vertical falling film high efficiency condensing unit.
3. The vertical falling film evaporative condenser, as recited in claim 1, wherein the first inlet header and the first outlet header are both placed in the upper portion of the vertical falling film high efficiency condensing unit.
4. The vertical falling film evaporative condenser, as recited in any one of claims 1 to 3, wherein the vertical condensing heat exchange tubes are twisted tubes.
5. The vertical falling film evaporative condenser, as recited in claim 4, wherein the twisted tubes are oval tubes, and when the center distance between two adjacent oval tubes is equal to the long axis distance outside the oval tubes, there are several contact points between the two oval tubes.
6. The vertical falling film evaporative condenser, as recited in claim 5, wherein there are gaps between adjacent vertical condensing tubes that are equally spaced.
7. The vertical falling film evaporative condenser, as recited in claim 6, wherein the gap is 5-100 mm.
8. The vertical falling film evaporative condenser, as recited in claim 7, wherein a filler material is disposed in the gap.
9. The vertical falling film evaporative condenser, as recited in claim 1, wherein the spray system further comprises a spray water pump and a water pipe, and the spray water pump, the spray device and the water collection tray are connected through the water pipe.
10. The vertical falling film evaporative condenser, as recited in claim 1, wherein side vents are provided on the side wall of the tank body, an upper vent is provided on the upper portion of the tank body, and a fan is provided in the upper vent.
CN202010200502.4A 2020-03-20 2020-03-20 Vertical falling film evaporation type condenser Pending CN113494856A (en)

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Application Number Priority Date Filing Date Title
CN202010200502.4A CN113494856A (en) 2020-03-20 2020-03-20 Vertical falling film evaporation type condenser

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Application Number Priority Date Filing Date Title
CN202010200502.4A CN113494856A (en) 2020-03-20 2020-03-20 Vertical falling film evaporation type condenser

Publications (1)

Publication Number Publication Date
CN113494856A true CN113494856A (en) 2021-10-12

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2039019A (en) * 1978-08-18 1980-07-30 Rosenblad Corp Surface condensers
CN101706184A (en) * 2009-12-02 2010-05-12 枣庄冰先制冷设备有限公司 Evaporative condenser
CN102393152A (en) * 2011-12-01 2012-03-28 上海宝丰机械制造有限公司 Finned mixed flow type evaporative condenser and condensing coil thereof
CN103148644A (en) * 2013-03-22 2013-06-12 郭永 Micro-channel falling film evaporation type condenser
CN103575146A (en) * 2012-07-20 2014-02-12 广州市华德工业有限公司 Heat exchange tube fin for filler coupling coil evaporative condenser
CN204723782U (en) * 2015-05-21 2015-10-28 中国科学院广州能源研究所 Little temperature difference shell journey becomes the no baffle plate high-efficiency energy-saving evaporator in space

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2039019A (en) * 1978-08-18 1980-07-30 Rosenblad Corp Surface condensers
CN101706184A (en) * 2009-12-02 2010-05-12 枣庄冰先制冷设备有限公司 Evaporative condenser
CN102393152A (en) * 2011-12-01 2012-03-28 上海宝丰机械制造有限公司 Finned mixed flow type evaporative condenser and condensing coil thereof
CN103575146A (en) * 2012-07-20 2014-02-12 广州市华德工业有限公司 Heat exchange tube fin for filler coupling coil evaporative condenser
CN103148644A (en) * 2013-03-22 2013-06-12 郭永 Micro-channel falling film evaporation type condenser
CN204723782U (en) * 2015-05-21 2015-10-28 中国科学院广州能源研究所 Little temperature difference shell journey becomes the no baffle plate high-efficiency energy-saving evaporator in space

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