CN103900400A - Air lift heat exchanger system convenient in starch dirt removing and processing method of air lift heat exchanger system - Google Patents
Air lift heat exchanger system convenient in starch dirt removing and processing method of air lift heat exchanger system Download PDFInfo
- Publication number
- CN103900400A CN103900400A CN201410117668.4A CN201410117668A CN103900400A CN 103900400 A CN103900400 A CN 103900400A CN 201410117668 A CN201410117668 A CN 201410117668A CN 103900400 A CN103900400 A CN 103900400A
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- Prior art keywords
- air
- heat exchanger
- pipeline
- ball valve
- starch
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- 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.)
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- 229920002472 Starch Polymers 0.000 title claims abstract description 43
- 235000019698 starch Nutrition 0.000 title claims abstract description 43
- 239000008107 starch Substances 0.000 title claims abstract description 43
- 238000003672 processing method Methods 0.000 title claims description 6
- 239000007864 aqueous solution Substances 0.000 claims abstract description 21
- 102000004190 Enzymes Human genes 0.000 claims abstract description 19
- 108090000790 Enzymes Proteins 0.000 claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000002689 soil Substances 0.000 claims description 14
- 238000013329 compounding Methods 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 4
- 239000007921 spray Substances 0.000 claims description 3
- -1 by centrifugal pump Substances 0.000 claims 1
- 239000000243 solution Substances 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 14
- 238000005406 washing Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 19
- 229940088598 enzyme Drugs 0.000 description 12
- 238000012546 transfer Methods 0.000 description 7
- 230000005494 condensation Effects 0.000 description 6
- 238000009833 condensation Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 102000004139 alpha-Amylases Human genes 0.000 description 2
- 108090000637 alpha-Amylases Proteins 0.000 description 2
- 229940024171 alpha-amylase Drugs 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 229920001353 Dextrin Polymers 0.000 description 1
- 239000004375 Dextrin Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000001351 cycling effect Effects 0.000 description 1
- 238000005262 decarbonization Methods 0.000 description 1
- 238000005261 decarburization Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- 235000019425 dextrin Nutrition 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000000615 nonconductor Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention relates to an air lift heat exchanger system convenient in starch dirt removing and a method for removing starch dirt. The air lift heat exchanger system comprises a blower, an air heat exchanger, an air separator, a starch liquefying enzyme aqueous solution storage, DN20 ball valves and a gas pipeline system. The air entered the blower enters the air heat exchanger through a pipeline. Heat exchange of analytical gas and the air is performed in the air heat exchanger. The air after heat exchange enters the air separator through the pipeline and then enters an air lift tower. The analytical gas after heat exchange is emptied. The DN20 ball valves are disposed on the pipelines of the blower and the air heat exchanger. The aqueous solution in the starch liquefying enzyme aqueous solution storage enters the air heat exchanger through the ball valves and is pumped into water for washing through the ball valves.
Description
Technical field
The present invention relates to a kind of air lift heat exchanger system and starch soil method thereof, be particularly convenient to remove the air lift heat exchanger system of starch-containing dirt and remove starch soil method.
Background technology
Biogas desulfurization decarburization is produced in the process of natural gas, because decarbonization system air lift air used need be through K cryogenic treatment, make plate-fin heat exchanger that air cooling-down uses owing to containing starch granules in surrounding environment, contact with starch-containing air for a long time, heat exchanger inner surface forms solid-state dirt gradually, they exist with the form of mixture conventionally, it is hot non-conductor, its thermal conductivity factor generally only has heat-transfer surface mainly to use 1/10th of material carbon steel, once heat-transfer surface has had dirt, heat transfer resistance between liquid and heat exchange wall just increases, the overall heat-transfer coefficient K of heat exchanger will reduce, according to formula: Q=KA Δ T, the heat transfer area that completes a heat exchange required by task will increase.
The existence of dirt has not only worsened the heat transfer property of heat exchanger, increase raw-material consumption, but also can cause circulation area to reduce because dirt layer thickens, in the situation that flow remains constant, this will cause mean flow rate to increase, dirt also makes the roughness of water passage surface increase, cause that coefficient of friction and coefficient of partial resistance increase, this flow resistance pressure drop Δ P that will cause whole heat exchanger increases, in order to maintain, exchanger heat transfer capacity is constant and required air quantity is constant, only has the consumed power that increases air blast.
The conventional method that solves this difficult problem is waterpower ablution; the method utilizes high-pressure pump ejection water under high pressure to remove dirt; but use the method must shut down laggard line operate; elimination efficiency is low; in heat exchanger, dirt only has on a small quantity and is taken out of by water, increases the operating time, thereby causes and stop for a long time air blast; production technology fluctuation is larger, affects productivity effect.
Can use in addition mechanical chipping method, heat exchanger is taken apart, utilize brush, the instrument cleaning dirts such as blade, the method need be stopped air blast for a long time, causes system to stop production, and dirt in cannot detergent line, also have Flows resistance, both affected productivity effect, and weak effect, labour intensity are large.
Summary of the invention
The present invention aims to provide is convenient to remove the air lift heat exchanger system of starch-containing dirt and removes starch soil method.
A starch soil processing method for air lift heat exchanger system, described air lift heat exchanger system comprises air blast, air heat exchanger, air separator, starch liquefacation enzyme aqueous solution holder, DN20 ball valve, gas pipeline system; Wherein, the air that enters air blast enters air heat exchanger by pipeline, resolves gas and air and in air heat exchanger, carries out heat exchange, and the air after heat exchange enters air separator through pipeline, then enters stripping tower; Parsing gas after heat exchange is emptying; On the pipeline of air blast and air heat exchanger, be provided with DN20 ball valve, starch liquefacation enzyme aqueous solution enters air heat exchanger spray contact starch soil through ball valve, then pumps into water by ball valve and rinses.Utilize vapor heating compounding starch liquefacation enzyme aqueous solution, beat to ball valve entrance by centrifugal pump.
An air lift heat exchanger system of being convenient to remove starch soil, is characterized in that, comprises air blast, air heat exchanger, air separator, DN20 ball valve, starch liquefacation enzyme aqueous solution holder, gas pipeline system; Blower conduits connects air heat exchanger, and air heat exchanger pipeline connects air separator; Resolve gas and count air heat exchanger through pipeline, the parsing gas after heat exchange is emptying; On the pipeline of air blast and air heat exchanger, be provided with DN20 ball valve, DN20 ball valve pipeline connects starch liquefacation enzyme aqueous solution holder and intake pump.
Described air heat exchanger is plate-fin heat exchanger.Described air blast is 2.
Described air separator is condensation of gas dewater unit, comprises condensation of gas chamber, condensate film, compressor, heat exchange metal tube, vacuum pump, is positioned at the pressure sensor of condensation of gas chamber rear and front end; Described condensation of gas chamber is tubular, and bottom has guiding gutter, and two ends connect respectively the valvular gas transmission pipeline of tool, and described guiding gutter is connected with the discharge pipe with angle valve, and described discharge pipe connects vacuum pump; The flat shape of described condensate film is major segment, described major segment is that arc arc is greater than the arc of semicircle, its arc-shaped edges coordinates and contacts with condensation of gas chamber wall, coiling heat exchange metal tube in condensate film, described condensate film is multiple, condensate film is divided into two groups by the upper and lower symmetry of adjacent two condensate films, staggered being fixed in condensation of gas chamber; Described compressor has two, is connected respectively with the heat exchange metal tube of laterally zygomorphic two groups of condensate films.
This method adopts increases by a DN20 ball valve in blower export and air heat exchanger inlet ductwork, utilize vapor heating compounding starch liquefacation enzyme aqueous solution, beat to ball valve entrance by centrifugal pump, under the effect of starch liquefacation enzyme, starch in pipeline, heat exchanger is converted into dextrin and compound sugar, the solubility of starch is increased, be taken to separator with the aqueous solution and be expelled to the water-soluble liquid bath of α-amylase and recycle.
The method does not need to stop production, and the operating time is short, cost is low, and starch based dirt removal efficiency is high, and centrifugal pump metered flow is 30m
3/ h, utilizes the cycling of the α-amylase aqueous solution, in the situation that air mass flow is constant, and air blast pressure decreased 1KPa/min, stable equipment operation in operating process, simple.Schematic flow sheet is as follows.
Accompanying drawing explanation
Fig. 1 is starch soil treating apparatus and the method process chart of air lift heat exchanger system of the present invention.
The specific embodiment
As shown in Figure 1: air lift heat exchanger system of the present invention comprises air blast, air heat exchanger, air separator, DN20 ball valve, starch liquefacation enzyme aqueous solution holder, gas pipeline system; Blower conduits connects air heat exchanger, and air heat exchanger pipeline connects air separator; Resolve gas and count air heat exchanger through pipeline, the parsing gas after heat exchange is emptying; On the pipeline of air blast and air heat exchanger, be provided with DN20 ball valve, DN20 ball valve pipeline connects starch liquefacation enzyme aqueous solution holder and intake pump.Described air heat exchanger is plate-fin heat exchanger.Described air blast is 2.
A starch soil processing method for air lift heat exchanger system, described air lift heat exchanger system comprises air blast, air heat exchanger, air separator, starch liquefacation enzyme aqueous solution holder, DN20 ball valve, gas pipeline system; Wherein, the air that enters air blast enters air heat exchanger by pipeline, resolves gas and air and in air heat exchanger, carries out heat exchange, and the air after heat exchange enters air separator through pipeline, then enters stripping tower; Parsing gas after heat exchange is emptying; On the pipeline of air blast and air heat exchanger, be provided with DN20 ball valve, starch liquefacation enzyme aqueous solution enters air heat exchanger spray contact starch soil through ball valve, then pumps into water by ball valve and rinses.Utilize vapor heating compounding starch liquefacation enzyme aqueous solution, beat to ball valve entrance by centrifugal pump.
More than show and described basic principle of the present invention and principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; that in above-described embodiment and description, describes just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (6)
1. a starch soil processing method for air lift heat exchanger system, described air lift heat exchanger system comprises air blast, air heat exchanger, air separator, starch liquefacation enzyme aqueous solution holder, DN20 ball valve, gas pipeline system; Wherein, the air that enters air blast enters air heat exchanger by pipeline, resolves gas and air and in air heat exchanger, carries out heat exchange, and the air after heat exchange enters air separator through pipeline, then enters stripping tower; Parsing gas after heat exchange is emptying; On the pipeline of air blast and air heat exchanger, be provided with DN20 ball valve, starch liquefacation enzyme aqueous solution enters air heat exchanger spray contact starch soil through ball valve, then pumps into water by ball valve and rinses.
2. the starch soil processing method of air lift heat exchanger system as claimed in claim 2, is characterized in that, utilizes vapor heating compounding starch liquefacation enzyme aqueous solution, by centrifugal pump, solution is pumped into ball valve.
3. an air lift heat exchanger system of being convenient to remove starch soil, is characterized in that, comprises air blast, air heat exchanger, air separator, ball valve, starch liquefacation enzyme aqueous solution holder, gas pipeline system; Blower conduits connects air heat exchanger, and air heat exchanger pipeline connects air separator; Resolve gas and count air heat exchanger through pipeline, the parsing gas after heat exchange is emptying; On the pipeline of air blast and air heat exchanger, be provided with ball valve, ball valve pipeline connects starch liquefacation enzyme aqueous solution holder and intake pump.
4. air lift heat exchanger system as claimed in claim 3, is characterized in that, described air heat exchanger is plate-fin heat exchanger.
5. air lift heat exchanger system as claimed in claim 3, is characterized in that, described air blast is 2.
6. air lift heat exchanger system as claimed in claim 3, is characterized in that, described ball valve is DN20 ball valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410117668.4A CN103900400A (en) | 2014-03-26 | 2014-03-26 | Air lift heat exchanger system convenient in starch dirt removing and processing method of air lift heat exchanger system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410117668.4A CN103900400A (en) | 2014-03-26 | 2014-03-26 | Air lift heat exchanger system convenient in starch dirt removing and processing method of air lift heat exchanger system |
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| Publication Number | Publication Date |
|---|---|
| CN103900400A true CN103900400A (en) | 2014-07-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410117668.4A Pending CN103900400A (en) | 2014-03-26 | 2014-03-26 | Air lift heat exchanger system convenient in starch dirt removing and processing method of air lift heat exchanger system |
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| Country | Link |
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| CN (1) | CN103900400A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109751913A (en) * | 2018-12-26 | 2019-05-14 | 南通正拓气体有限公司 | Starch dirt treatment system and treatment process of air stripping heat exchanger system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5599402A (en) * | 1991-03-08 | 1997-02-04 | Novo Nordisk A/S | Method for cleaning plate heat exchangers |
| JPH0972694A (en) * | 1995-09-05 | 1997-03-18 | Hisaka Works Ltd | Method and apparatus for cleaning plate heat exchanger |
| CN201331295Y (en) * | 2008-12-16 | 2009-10-21 | 宁夏鲁西化工化肥有限公司 | Scale deposit removing device for plate type heat exchanger |
| CN102154390A (en) * | 2011-02-24 | 2011-08-17 | 江苏联海生物科技有限公司 | Method for producing ethyl acetate by taking starchiness as main raw materials |
| CN202692827U (en) * | 2012-08-01 | 2013-01-23 | 大唐鲁北发电有限责任公司 | Plate-type heat exchanger flushing device |
-
2014
- 2014-03-26 CN CN201410117668.4A patent/CN103900400A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5599402A (en) * | 1991-03-08 | 1997-02-04 | Novo Nordisk A/S | Method for cleaning plate heat exchangers |
| JPH0972694A (en) * | 1995-09-05 | 1997-03-18 | Hisaka Works Ltd | Method and apparatus for cleaning plate heat exchanger |
| CN201331295Y (en) * | 2008-12-16 | 2009-10-21 | 宁夏鲁西化工化肥有限公司 | Scale deposit removing device for plate type heat exchanger |
| CN102154390A (en) * | 2011-02-24 | 2011-08-17 | 江苏联海生物科技有限公司 | Method for producing ethyl acetate by taking starchiness as main raw materials |
| CN202692827U (en) * | 2012-08-01 | 2013-01-23 | 大唐鲁北发电有限责任公司 | Plate-type heat exchanger flushing device |
Non-Patent Citations (1)
| Title |
|---|
| 刘国胜: "NHD脱碳工艺节能改进", 《山西化工》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109751913A (en) * | 2018-12-26 | 2019-05-14 | 南通正拓气体有限公司 | Starch dirt treatment system and treatment process of air stripping heat exchanger system |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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Application publication date: 20140702 |