CN105674761B - Mixing condenser - Google Patents
Mixing condenser Download PDFInfo
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- CN105674761B CN105674761B CN201610234963.7A CN201610234963A CN105674761B CN 105674761 B CN105674761 B CN 105674761B CN 201610234963 A CN201610234963 A CN 201610234963A CN 105674761 B CN105674761 B CN 105674761B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28B—STEAM OR VAPOUR CONDENSERS
- F28B3/00—Condensers in which the steam or vapour comes into direct contact with the cooling medium
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Abstract
The present invention provides a kind of mixing condenser, including：Mixing condenser ontology is provided with fixed gas pipe at the top of mixing condenser ontology, and bottom is provided with cooling water return pipe, and secondary steam pipe is communicated with below mixing condenser ontology side；Level-one cooling device is provided with above the secondary steam pipe；The level-one cooling device includes：Level-one cooling water supply pipe, level-one cooling water chamber, level-one fair current injection nozzle；The 37 DEG C of temperature losses lost in former countercurrent condenser are changed into the effective temperature difference of multi-effect evaporation system by the present invention, improve heat utilization efficiency, realize Increasing Production and Energy Saving.Relative to traditional contraflow condenser, the mixed-flow condenser inlet and outlet that the present invention is transformed can realize zero flow resistance, and internal structure is simple, is not easy to plug, and safeguards simple.
Description
Technical field
The technology that patent of the present invention is related to the industries multi-effect evaporation system mixing condenser such as saltcake, caustic soda, vacuum salt production changes
Make method.
Background technology
Evaporation and concentration is common a kind of technique in Production in Chemical Plant.In evaporating concentration process, vacuum is heat transfer
Motive force.Under the promotion of end effect vacuum pressure, feed liquid is reused by repeatedly evaporation, the latent heat of vaporization of water vapour.
The height of end effect vacuum degree and opposite production intensity substantial connection, with the raising of end effect vacuum degree, production intensity increases rapidly.
Therefore, it is always the energy-efficient key point of multi-effect evaporation system to maintain higher end effect vacuum degree.
Existing vacuum system is mostly by mixing condenser with multistage steam injector and water stream injection pump (or liquid-ring type vacuum
Pump) ensure vacuum degree.Wherein, mixing condenser condenses steam by direct heat transfer mass transfer between carbonated drink to generate vacuum,
It is the core equipment to form vacuum；Steam jet ejector and water stream injection pump are mainly used for extracting the fixed gas in system.Condensation by mixing
The operational effect of device is to influence the key equipment of multi-effect evaporation system end effect vacuum degree.
At present condenser be mostly reverse-flow mixing condenser, internal structure has board-like, tubular type, injecting type and simultaneously
Streaming.Indirect steam or fixed gas enter from condenser bottom in countercurrent condenser, are carried out with top-down cooling water inverse
Stream contact, fixed gas are extracted from top by vacuum equipment.Indirect steam or fixed gas will not only overcome pipeline in flow process
With the resistance of equipment, the resistance of cooling water is also overcome, therefore this countercurrent condenser is generally deposited in practical engineering application
It is easily blocking, the shortcomings of flow resistance is big.In general, the flow resistance of countercurrent condenser is 2000-4000Pa, corresponding temperature difference loss
About 3-7 DEG C, account for about the 10-20% of effective temperature difference, greatly reduce the thermal efficiency, result in the decline of production intensity.Therefore it drops
The effective temperature difference of system can be improved 3-7 DEG C by the resistance of low mixing condenser, and same period production capacity improves 10-20%.
Invention content
It is an object of the invention to solve the problems of the above-mentioned prior art, provide a kind of complete in guarantee indirect steam
Under the premise of condensation, to the internal structure of existing countercurrent condenser, the distribution of cooling water and nozzle layout pattern are changed
Make, provide it is a kind of integrate pumping and condensation, the mixing condenser of zero flow resistance.
A kind of mixing condenser, including：Mixing condenser ontology is provided with fixed gas at the top of mixing condenser ontology
Pipe, bottom is provided with cooling water return pipe, secondary steam pipe is communicated with below mixing condenser ontology side；
Level-one cooling device is provided with above the secondary steam pipe；
The level-one cooling device includes：Level-one cooling water supply pipe, level-one cooling water chamber, level-one fair current injection nozzle；
The level-one cooling water chamber is fixed on the outer of secondary steam pipe and places, and the level-one cooling water supply pipe is mounted on level-one cooling water
It is used to provide water source for it on the outer wall of room；The level-one fair current injection nozzle is mounted in secondary steam pipe, the level-one fair current
Injection nozzle is connected with the level-one cooling water chamber.
Further, mixing condenser as described above sets two level cooling device in the lower section of mixing condenser ontology；
The two level cooling device includes：Two level injection nozzle, two level cooling water chamber, two level cooling water supply pipe；It is described
Two level cooling water chamber is arranged on the inside of mixing condenser ontology, and one end of the two level cooling water supply pipe and the two level are cold
But connection is fixed at the top of hydroecium, and the other end is stretched out outside the side wall of mixing condenser ontology；The two level injection nozzle distribution
On the surrounding side wall of two level cooling water chamber.
Further, mixing condenser as described above is provided with three-level cooling dress in the middle part of mixing condenser ontology
It puts；
The three-level cooling device includes：Three-level cooling water chamber, three-level cooling water supply pipe, three swirler atomizer；
The three-level cooling water chamber is fixed on the outer of mixing condenser ontology and places, and it is cold that the three-level cooling water supply pipe is mounted on three-level
But it is used to provide water source for it on the outer wall of hydroecium；The three swirler atomizer is mounted in mixing condenser ontology, should
Three swirler atomizer is connected with the three-level cooling water chamber.
Further, mixing condenser as described above is set in mixing condenser ontology, below three-level cooling device
It is equipped with the first splash board.
Further, mixing condenser as described above is provided with level Four cooling dress on the top of mixing condenser ontology
It puts；
The level Four cooling device includes：Level Four cooling water chamber, level Four cooling water supply pipe, level Four rotational flow atomized spray injector；
The level Four cooling water chamber is fixed on the outer of mixing condenser ontology and places, and it is cold that the level Four cooling water supply pipe is mounted on level Four
But it is used to provide water source for it on the outer wall of hydroecium；The level Four rotational flow atomized spray injector is mounted in mixing condenser ontology, should
Level Four rotational flow atomized spray injector is connected with the level Four cooling water chamber.
Further, mixing condenser as described above is set in mixing condenser ontology, below level Four cooling device
It is equipped with the second splash board.
Further, mixing condenser as described above is provided with water drenching ring below the second splash board.
Further, mixing condenser as described above, the three swirler atomizer, level Four rotational flow atomized spray injector
For flow in the range of 4-50t/h, work water pressure is 6-12mH2O, nozzle diameter are 12-50mm, and Average droplet diameter is equal
Less than 2mm.
Further, mixing condenser as described above, the water drenching from the first splash board to level Four rotational flow atomized spray injector are close
It spends for 100-180t/m2·h。
The invention has the advantages that the 3-7 DEG C of temperature loss lost in former countercurrent condenser is changed into multiple-effect
The effective temperature difference of vapo(u)rization system improves heat utilization efficiency, realizes Increasing Production and Energy Saving.Relative to traditional contraflow condenser, the present invention changes
The mixed-flow condenser inlet and outlet made can realize zero flow resistance, and internal structure is simple, is not easy to plug, and safeguard simple.
Description of the drawings
Fig. 1 is mixing condenser body construction schematic diagram of the present invention；
Fig. 2 is level-one fair current injection nozzle layout type structure diagram of the present invention；
Fig. 3 is two level injection nozzle layout type structure diagram of the present invention；
Fig. 4 is the present invention three, level Four nozzle layout type structure diagram.
1- secondary steam pipes；2- level-one cooling water supply pipes；3- level-one cooling water chambers；4- level-one fair current injection nozzles；5-
Level Four cooling water chamber；6- mixing condenser ontologies；7- three-level cooling water chambers；8- cooling water return pipe；9- two level injection nozzles；
10- two level cooling water chambers；11- two level cooling water supply pipes；The first splash boards of 12-；13- three-level cooling water supply pipes；14- three-levels
Rotational flow atomized spray injector；15- water drenching rings；The second splash boards of 16-；17- level Four cooling water supply pipes；18- level Four rotational flow atomized spray injectors；
19- fixed gas pipes.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, the technical solution below in the present invention carries out clear
Chu is fully described by, it is clear that described embodiment is part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without creative efforts
Embodiment shall fall within the protection scope of the present invention.
As shown in Figure 1 and Figure 2, mixing condenser provided by the invention, including：Mixing condenser ontology 6, mixing condenser
The top of ontology 6 is provided with fixed gas pipe 19, and bottom is provided with cooling water return pipe 8, under 6 side of mixing condenser ontology
Side is communicated with secondary steam pipe 1；
The top of the secondary steam pipe 1 is provided with level-one cooling device；
The level-one cooling device includes：Level-one cooling water supply pipe 2, level-one cooling water chamber 3, level-one fair current injection nozzle
4；The level-one cooling water chamber 3 is fixed on the outer of secondary steam pipe 1 and places, and the level-one cooling water supply pipe 2 is mounted on level-one
It is used to provide water source for it on the outer wall of cooling water chamber 3；The level-one fair current injection nozzle 4 is mounted in secondary steam pipe 1, should
Level-one fair current injection nozzle 4 is connected with the level-one cooling water chamber 3.
Preferably, mixing condenser as described above, the lower section of mixing condenser ontology 6 setting two level cooling device,
Middle part is provided with three-level cooling device, top is provided with level Four cooling device；
The two level cooling device includes：Two level injection nozzle 9, two level cooling water chamber 10, two level cooling water supply pipe 11；
The two level cooling water chamber 10 is arranged on the inside of mixing condenser ontology 6, one end of the two level cooling water supply pipe 11 with
Connection is fixed at the top of the two level cooling water chamber 10, and the other end is stretched out outside the side wall of mixing condenser ontology 6；The two level
9 distributing installation of injection nozzle is on the surrounding side wall of two level cooling water chamber 10.
The three-level cooling device includes：Three-level cooling water chamber 7, three-level cooling water supply pipe 13, three swirler atomization spray
First 14；The three-level cooling water chamber 7 is fixed on the outer of mixing condenser ontology 6 and places, and the three-level cooling water supply pipe 13 is pacified
It is used to provide water source for it on the outer wall of three-level cooling water chamber 7；It is cold that the three swirler atomizer 14 is mounted on mixing
In condenser ontology 6, which connects with the three-level cooling water chamber 7.
The level Four cooling device includes：Level Four cooling water chamber 5, level Four cooling water supply pipe 17, the spray of level Four swirling flow atomizing
First 18；The level Four cooling water chamber 5 is fixed on the outer of mixing condenser ontology 6 and places, and the level Four cooling water supply pipe 17 is pacified
It is used to provide water source for it on the outer wall of level Four cooling water chamber 5；It is cold that the level Four rotational flow atomized spray injector 18 is mounted on mixing
In condenser ontology 6, which connects with the level Four cooling water chamber 5.
Preferably, it is provided with the first splash board 12 in mixing condenser ontology 6, below three-level cooling device.Mixed
It closes in condenser ontology 6, be provided with the second splash board 16 below level Four cooling device.It is set in the lower section of the second splash board 16
There is water drenching ring 15.
Using existing end effect secondary steam pipeline, one layer of level-one fair current injection nozzle 4 is set in the pipeline, i.e., by end effect
Secondary pipe is transformed into parallel-flow condenser.Existing vacuum salt production, caustic soda, saltcake industry vapo(u)rization system, the ratio of end effect secondary steam
Hold larger, designed by flow velocity for 45-60m/s, so end effect secondary steam pipe diameter is larger.Therefore the present invention is in end effect secondary steam
One layer of level-one fair current injection nozzle 4 in pipe is set, plays injection end effect secondary steam and fixed gas, to overcome equipment and pipe
The fluid resistance in road；End effect secondary steam is flowed under the action of pressure difference convection current with supersonic speed to jet stream initial segment simultaneously, part
Steam is condensed.The reasonable Arrangement of this layer of nozzle makes spray cover entire pipeline section, and spraying spray density is less than 40t/m2·
h。
Increase one layer of two level injection nozzle 9 newly in 6 bottom of mixing condenser ontology, in the gas of last evaporator evaporation, no
There is only condensated gas (water vapours), and also there are part fixed gases.Usual fixed gas is by setting vacuum equipment after the condenser to take out
It removes.Since fixed gas is than condensated gas weight, the present invention sets one layer of two level injection nozzle 9 in condenser bottom, this layer of nozzle has concurrently
Condensed steam and the double action for extracting fixed gas, and generate fair current vacuum.
Two layers of seedpod of the lotus nozzle of existing condenser secondary steam pipe entrance top is changed to three swirler atomizer respectively
14th, level Four rotational flow atomized spray injector 18, it is therefore an objective to increase the contact area between steam and cooling water, strengthen mass transfer effect.Each
The flow of rotational flow atomized spray injector is in the range of 4-50t/h, work water pressure 6-12mH2O, nozzle diameter 12-50mm, it is average
Fogdrop diameter is less than 2mm, and in 3m heads, that is, aerosolizable, and pump energy consumption is only the 1/3-1/4 of pressure atomization nozzle.Two layers
Rotational flow atomized spray injector is arranged in a ring, to ensure that the initial segment spray in jet stream does not interfere with each other.
The water drenching of mixing condenser ontology top half (from the first splash board 12 to level Four rotational flow atomized spray injector 18) is close
It spends from 200-280t/m2H is down to 100-180t/m2·h.6 bottom two layers nozzle of secondary steam pipe 1 and mixing condenser ontology
Extracting for condensation and fixed gas to water vapour, effectively reduces the water vapour amount of mixing condenser ontology top half and does not coagulate
Tolerance, therefore present invention reduces the spray densities on mixing condenser top.
Indirect steam from end effect vaporization chamber is in end effect steam pipe 1, the cooling sprayed by level-one fair current injection nozzle 4
Water jet.When the carbonated drink temperature difference is more than 8 DEG C, indirect steam is flowed with supersonic speed to jet stream initial segment；When the carbonated drink temperature difference is 8 DEG C
When, water vapour is with velocity of sound to jet stream convection current.Indirect steam under the ejector action of level-one fair current injection nozzle 4, be cooled water into
Row part cools down, and enters in mixing condenser ontology 6.Into the gas in mixing condenser, a part is by condenser bottom
9 injection of two level injection nozzle to the bottom of mixing condenser ontology 6, water vapour is by the cooling water from two level cooling water chamber 10
Condensation, drains through cooling water return pipe 8；Part fixed gas is under the ejector action of cooling water as cooling water return water is through cooling water
Return pipe 8 is drained.Another part indirect steam is by the three swirler atomizer 14 on condenser top, level Four rotational flow atomized spray injector
The droplet cooling of 18 injections, fixed gas are drained from top fixed gas pipe 19 by vacuum equipment.
In the present invention, four layers of nozzle are set altogether in secondary steam pipe 1 and mixing condenser ontology 6.Wherein, level-one fair current is drawn
The major function for penetrating nozzle 4 and two level injection nozzle 9 is injection indirect steam and fixed gas；Three swirler atomizer 14 and four
The major function of grade rotational flow atomized spray injector 18 is total condensation indirect steam.
To ensure the total condensation of indirect steam, below three swirler atomizer 14 and level Four rotational flow atomized spray injector 18
First splash board 12 and the second splash board 16 are set respectively, by the secondary sputtering of cooling water, increase the time of contact with indirect steam,
And it effectively prevent forming short circuit and dead angle.In the middle part of mixing condenser ontology 6 setting water drenching ring 15, prevent cooling water from forming wall
Stream.
The techno-economic effect of this mixing condenser technological transformation method is as follows：
Embodiment one：Technological transformation method according to the invention, saltworks is produced per year 180,000 tons four-effect evaporation vacuum system it is mixed
It closes condenser and has carried out technological transformation.Protoatmosphere mixing condenser cylinder section size is Φ 2200x6500, inside sets three-level spray,
It is seedpod of the lotus nozzle, the drop size of generation is larger, and vapour-liquid contact area is smaller；In the cooling water complete or collected works of air mixing condenser
In mixer, sprinkle density is up to 289t/m2·h；Mixing condenser inlet vacuum is -0.086MPa, and steam jet ejector enters
The vacuum of mouth is -0.090MPa, i.e. the drag losses of air mixing condenser are 4000Pa, are equivalent to effective temperature difference and about have lost
7℃.According to the technology of the present invention remodeling method, condenser drag losses have dropped 3000Pa, and end effect secondary steam temperature has dropped
5-7 DEG C, same period volume increase 10% is truly realized energy-saving.
Embodiment two：Technological transformation method using the present invention, produce 400000 tons per year to saltcake factory five imitate evaporation in vacuo systems
Mixing condenser has carried out technological transformation.It is 40t/h, cooling water inflow 3600t/h to design mixing condenser quantity of steam, and original designs
Vacuum acquirement mode be that countercurrent spray condenser adds vapor jet vacuum to pump.The working steam pressure of steam is 0.5Mpa, is steamed
Steam consumption is 1.4t/h, and the end effect vacuum degree of original system is 0.086-0.088MPa, and design objective is not achieved in system throughput.Through changing
System after making is run in the state of steam jet ejector is stopped, end effect vacuum degree be 0.093MPa, 42 DEG C of end effect material temperature, yield
Working steam pressure more than design objective, and first effect is down to 0.20MPa, achieves prominent energy-saving effect.
Finally it should be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
The present invention is described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that：It still may be used
To modify to the technical solution recorded in foregoing embodiments or carry out equivalent replacement to which part technical characteristic；
And these modification or replace, various embodiments of the present invention technical solution that it does not separate the essence of the corresponding technical solution spirit and
Range.
Claims (2)
1. a kind of mixing condenser, which is characterized in that including：Mixing condenser ontology (6), the top of mixing condenser ontology (6)
Portion is provided with fixed gas pipe (19), and bottom is provided with cooling water return pipe (8), in the lower section of mixing condenser ontology (6) side
It is communicated with secondary steam pipe (1)；
Level-one cooling device is provided with above the secondary steam pipe (1)；
The level-one cooling device includes：Level-one cooling water supply pipe (2), level-one cooling water chamber (3), level-one fair current injection nozzle
(4)；The level-one cooling water chamber (3) is fixed on outer the placing of secondary steam pipe (1), level-one cooling water supply pipe (2) peace
It is used to provide water source for it on the outer wall of level-one cooling water chamber (3)；The level-one fair current injection nozzle (4) is mounted on secondary
In steam pipe (1), which connects with the level-one cooling water chamber (3)；
In the lower section of mixing condenser ontology (6), two level cooling device is set；
The two level cooling device includes：Two level injection nozzle (9), two level cooling water chamber (10), two level cooling water supply pipe
(11)；The two level cooling water chamber (10) is arranged on the inside of mixing condenser ontology (6), the two level cooling water supply pipe
(11) one end is fixed with the top of the two level cooling water chamber (10) and is connected, and the other end is stretched out in mixing condenser ontology (6)
Side wall outside；Two level injection nozzle (9) distributing installation is on the surrounding side wall of two level cooling water chamber (10)；
Three-level cooling device is provided in the middle part of mixing condenser ontology (6)；
The three-level cooling device includes：Three-level cooling water chamber (7), three-level cooling water supply pipe (13), three swirler atomization spray
Head (14)；The three-level cooling water chamber (7) is fixed on outer the placing of mixing condenser ontology (6), the three-level cooling water
(13) are managed to be used to provide water source for it on the outer wall of three-level cooling water chamber (7)；The three swirler atomizer (14)
In mixing condenser ontology (6), which connects with the three-level cooling water chamber (7)；
The first splash board (12) is provided in mixing condenser ontology (6), below three-level cooling device；
The top of mixing condenser ontology (6) is provided with level Four cooling device；
The level Four cooling device includes：Level Four cooling water chamber (5), level Four cooling water supply pipe (17), the spray of level Four swirling flow atomizing
Head (18)；The level Four cooling water chamber (5) is fixed on outer the placing of mixing condenser ontology (6), the level Four cooling water
(17) are managed to be used to provide water source for it on the outer wall of level Four cooling water chamber (5)；The level Four rotational flow atomized spray injector (18)
In mixing condenser ontology (6), which connects with the level Four cooling water chamber (5)；
The second splash board (16) is provided in mixing condenser ontology (6), below level Four cooling device；
The three swirler atomizer (14), level Four rotational flow atomized spray injector (18) flow in the range of 4-50t/h, work
Hydraulic pressure is 6-12mH2O, nozzle diameter are 12-50mm, and Average droplet diameter is respectively less than 2mm；
It is 100-180t/m from the first splash board (12) to the spray density of level Four rotational flow atomized spray injector (18)2·h。
2. mixing condenser according to claim 1, which is characterized in that be provided with leaching below the second splash board (16)
Water ring (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610234963.7A CN105674761B (en) | 2016-04-13 | 2016-04-13 | Mixing condenser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610234963.7A CN105674761B (en) | 2016-04-13 | 2016-04-13 | Mixing condenser |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105674761A CN105674761A (en) | 2016-06-15 |
| CN105674761B true CN105674761B (en) | 2018-07-03 |
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ID=56310184
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610234963.7A Expired - Fee Related CN105674761B (en) | 2016-04-13 | 2016-04-13 | Mixing condenser |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106839797B (en) * | 2017-03-31 | 2022-12-20 | 丁新平 | Condenser for producing foam products |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3423078A (en) * | 1966-03-17 | 1969-01-21 | Gen Electric | Combined jet and direct air condenser |
| JPS5482506A (en) * | 1977-12-15 | 1979-06-30 | Toshiba Corp | Spray type steam condenser |
| JPS6026956B2 (en) * | 1979-05-15 | 1985-06-26 | 富士電機株式会社 | Direct contact multi-stage pressure condenser |
| CN1045174A (en) * | 1990-03-22 | 1990-09-05 | 魏仕英 | Jet-type mixing condenser |
| HU206409B (en) * | 1990-07-18 | 1992-10-28 | Energiagazdalkodasi Intezet | Mixing condensator |
| CN2413254Y (en) * | 2000-04-07 | 2001-01-03 | 唐山嘉恒实业有限公司 | Slag granulating steam condensation recovery plant |
| CN2520494Y (en) * | 2002-01-17 | 2002-11-13 | 自贡市蓝光应用技术研究所 | Empty tower spray condenser |
| CN201093884Y (en) * | 2007-09-04 | 2008-07-30 | 广西工院糖业科技有限责任公司 | Cross current type jet condenser capable of regulating and controlling |
| CN203928787U (en) * | 2014-06-19 | 2014-11-05 | 济宁市隆基新型建材有限公司 | The remaining vapour condensate recycling device of still kettle |
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2016
- 2016-04-13 CN CN201610234963.7A patent/CN105674761B/en not_active Expired - Fee Related
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