CN107490320B - A kind of system of automatic solution air cooler bias current - Google Patents
A kind of system of automatic solution air cooler bias current Download PDFInfo
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- CN107490320B CN107490320B CN201710589800.5A CN201710589800A CN107490320B CN 107490320 B CN107490320 B CN 107490320B CN 201710589800 A CN201710589800 A CN 201710589800A CN 107490320 B CN107490320 B CN 107490320B
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- 238000001514 detection method Methods 0.000 claims abstract description 85
- 239000000463 material Substances 0.000 claims abstract description 38
- 238000005070 sampling Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 8
- 230000003139 buffering effect Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000012824 chemical production Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011143 downstream manufacturing Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F27/00—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Separation By Low-Temperature Treatments (AREA)
Abstract
The present invention relates to a kind of automatic systems for solving air cooler bias current, include: flow sensing unit, automatic adjustment unit, data processing unit；The shunt volume of cold material is exported at the total flow and two of the flow sensing unit detection detection air cooler entrance thermal material, the data on flows detected is sent to data processing unit, data processing unit receives data on flows, pass through automatic adjustment unit, the flow that cold material is exported at two is reached balance by the shunt volume that the total flow mean allocation of air cooler entrance thermal material is exported to cold material at two.The present invention distributes each rate of discharge according to air cooler inlet flow rate is average automatically, is adjusted using lag, fundamentally solves the problems, such as air cooler outlet flow deflection.
Description
Technical field
The invention belongs to automation field, in particular to a kind of automatic system for solving air cooler bias current.
Background technique
Air cooler is as a kind of common heat exchanger of chemical industry, in normal chemical production process, since produce load is promoted
Or reduce, cause air cooler treating capacity to generate variation, inlet flow rate also changes therewith, and air cooler branch outlet is also due to pressure
Inequality generates bias current, causes one outlet flow excessive, and the small flow of one outlet.And bias current production can be caused it is huge
Harm, it declines air cooler heat exchange efficiency, and if thermal material can not be cooled to technique required temperature, downstream process equipment will meet with
It is shut down, the excessive direct row pressure of pressure to torch burning, or even reveals dangerous chemical material.
And air cooler bias current is solved automatically and is also noted that automatic control system lag issues, air cooler inlet flow rate fluctuated
When big, adjustable side can not finely be automatically adjusted, and also result in bias current in this way, and be more difficult to recover air cooler and normally given birth to
It produces.
Summary of the invention
It is an object of that present invention to provide a kind of automatic systems for solving air cooler bias current.
A kind of system of automatic solution air cooler bias current characterized by comprising flow sensing unit, automatic adjustment are single
Member, data processing unit；Outlet is cold at the total flow and two of the flow sensing unit detection detection air cooler entrance thermal material
The shunt volume of material, the data on flows detected are sent to data processing unit, and data processing unit receives data on flows, lead to
Automatic adjustment unit is crossed, the total flow mean allocation of air cooler entrance thermal material is exported to the shunt volume of cold material at two, it will
The flow that cold material is exported at two reaches balance.
Further, the flow sensing unit is acoustic wave, specially detection air cooler entrance thermal material pipeline
Internal first samples acoustic wave flow signal, and the second sampling acoustic wave flow signal inside cold material pipeline is exported at air cooler two
And third samples acoustic wave flow signal；Wherein, the first sampling acoustic wave flow letter inside air cooler entrance thermal material pipeline is detected
Number it is divided at two again and detects, wherein preferentially to provide the detection air cooler entrance hot object at the air cooler one at main detection
The first sampling acoustic wave flow signal inside pipe material, is the detector from 50 meters at main detection at redundant detection, at main detection
When acoustic signals generate fluctuation, starts and carry out lag adjusting at redundant detection.
Further, startup hysteresis adjusting condition is, differs 10% with the data detected at main detection at redundant detection.
Further, the first sampling acoustic wave flow signal inside the detection air cooler entrance thermal material pipeline is specifically examined
Mark is quasi- are as follows: when being disturbed in controlled process and make controlled parameter drift-out to point value, is preferentially received partially at redundant detection
From signal, operation signal is sent to data processing unit, data processing unit sends operation signal to the automatic adjustment unit,
Valve opening adjusting is adjusted using the operation signal at redundant detection in the automatic adjustment unit；By at main detection with it is spare
After 50 meters of deviation buffer strip at detection, offset signal is detected at main detection, the automatic adjustment unit uses main inspection at this time
Valve opening adjusting is adjusted in the operation signal sent at survey.
Further, the automatic adjustment unit Selfstabilizing is adjusted specifically: when offset signal occurs, is controlled parameter hair
It is raw to change, at main detection with replace transmission operation signal at redundant detection, the automatic adjustment unit is according to controlled parameter at this time
And the deviation and variation tendency of given value, speed further correct, and existing parameter constant is kept after correction, waits a main detection
It the time that place is adjusted with the buffering lag at redundant detection, is then corrected again, after system trends are substantially constant, at main detection
When differing with the detection signal at redundant detection less than 5%, using at main detection send operation signal, redundant detection everywhere in
Stand-by state.
Further, it further includes being installed on the temperature detector exported at air cooler two that automatic adjustment unit, which executes signal,
Outlet temperature detection opens automatic adjustment unit and is adjusted to normal value down to setting value at air cooler two.
Beneficial effects of the present invention:
1. the present invention when air cooler is due to outlet material flow imbalance, adjusts in time, restore normal process production.
2. the present invention in air cooler self-regulating process, using double fluid gauge, solves hysteresis.
Detailed description of the invention
Fig. 1 is a kind of system structure diagram of automatic system for solving air cooler bias current of the invention.
Specific embodiment
Below with reference to Detailed description of the invention a specific embodiment of the invention.
It is an object of that present invention to provide a kind of automatic systems for solving air cooler bias current.
A kind of system of automatic solution air cooler bias current characterized by comprising flow sensing unit, automatic adjustment are single
Member, data processing unit；Outlet is cold at the total flow and two of the flow sensing unit detection detection air cooler entrance thermal material
The shunt volume of material, the data on flows detected are sent to data processing unit, and data processing unit receives data on flows, lead to
Automatic adjustment unit is crossed, the total flow mean allocation of air cooler entrance thermal material is exported to the shunt volume of cold material at two, it will
The flow that cold material is exported at two reaches balance.The flow sensing unit is acoustic wave, and specially detection air cooler enters
First inside mouth thermal material pipeline samples acoustic wave flow signal, and the second sampling inside cold material pipeline is exported at air cooler two
Acoustic wave flow signal and third sample acoustic wave flow signal；Wherein, first inside air cooler entrance thermal material pipeline is detected to adopt
Sample acoustic wave flow signal, which is divided into again at two, to be detected, wherein being that it is empty preferentially to provide the detection at air cooler one at main detection
First inside cooler entrance thermal material pipeline samples acoustic wave flow signal, is the detection from 50 meters at main detection at redundant detection
Device when acoustic signals generate fluctuation at main detection, starts and carries out lag adjusting at redundant detection.Startup hysteresis adjusting condition exists
In, at redundant detection at main detection detect data differ 10%.The inside the detection air cooler entrance thermal material pipeline
The one sampling specific examination criteria of acoustic wave flow signal are as follows: make controlled parameter drift-out to point value when being disturbed in controlled process
When, it is preferentially received offset signal at redundant detection, sends operation signal to data processing unit, data processing unit sends behaviour
Make signal to the automatic adjustment unit, the automatic adjustment unit is adjusted valve using the operation signal at redundant detection and opens
Degree is adjusted；By detecting offset signal at main detection, at this time at main detection and after 50 meters of deviation buffer strip at redundant detection
Valve opening adjusting is adjusted using the operation signal sent at main detection in the automatic adjustment unit.The automatic adjustment unit
Selfstabilizing is adjusted specifically: when offset signal occurs, controlled parameter changes, at main detection with replace hair at redundant detection
Send operation signal, at this time the automatic adjustment unit according to the deviation and variation tendency of controlled parameter and given value, speed come into
One step correction, existing parameter constant is kept after correction, wait at a main detection with redundant detection at buffering lag adjust when
Between, it is then corrected, after system trends are substantially constant, is differed with the detection signal at redundant detection less than 5% at main detection again
When, using the operation signal sent at main detection, redundant detection is everywhere in stand-by state.It is describedAutomatic adjustment unit executes signal
It further include being installed on the temperature detector exported at air cooler two, outlet temperature detection is opened down to setting value at air cooler two
It opens automatic adjustment unit and is adjusted to normal value.
Claims (4)
1. a kind of automatic system for solving air cooler bias current characterized by comprising flow sensing unit, automatic adjustment unit,
Data processing unit；Cold material is exported at the total flow and two of the flow sensing unit detection detection air cooler entrance thermal material
Shunt volume, the data on flows detected is sent to data processing unit, and data processing unit receives data on flows, by from
It is dynamic to adjust unit, the total flow mean allocation of air cooler entrance thermal material is exported to the shunt volume of cold material at two, at two
The flow of outlet cold material reaches balance, and the flow sensing unit is acoustic wave, specially detection air cooler entrance heat
First inside material pipe samples acoustic wave flow signal, and the second sampling sound wave inside cold material pipeline is exported at air cooler two
Flow signal and third sample acoustic wave flow signal；Wherein, the first sampling sound inside air cooler entrance thermal material pipeline is detected
Wave flow signal, which is divided into again at two, to be detected, wherein being preferentially to provide the detection air cooler at air cooler one at main detection
First inside entrance thermal material pipeline samples acoustic wave flow signal, is the detector from 50 meters at main detection at redundant detection,
When acoustic signals generate fluctuation at main detection, starts and carry out lag adjusting at redundant detection.
2. the system of automatic solution air cooler bias current according to claim 1, which is characterized in that startup hysteresis adjusting condition
It is, differs 10% with the data detected at main detection at redundant detection.
3. the system of automatic solution air cooler bias current according to claim 1, which is characterized in that the detection air cooler enters
The first sampling specific examination criteria of acoustic wave flow signal inside mouthful thermal material pipeline are as follows: make when being disturbed in controlled process
When controlled parameter drift-out is to point value, it is preferentially received offset signal at redundant detection, sends operation signal to data processing unit,
Data processing unit sends operation signal to the automatic adjustment unit, and the automatic adjustment unit is using the behaviour at redundant detection
Valve opening is adjusted as signal to adjust；After 50 meters of deviation buffer strip at main detection and at redundant detection, at main detection
Detect offset signal, valve opening tune is adjusted using the operation signal sent at main detection in the automatic adjustment unit at this time
Section.
4. the system of automatic solution air cooler bias current according to claim 3, which is characterized in that the automatic adjustment unit
Selfstabilizing is adjusted specifically: when offset signal occurs, controlled parameter changes, at main detection with replace hair at redundant detection
Send operation signal, at this time the automatic adjustment unit according to the deviation and variation tendency of controlled parameter and given value, speed come into
One step correction, existing parameter constant is kept after correction, wait at a main detection with redundant detection at buffering lag adjust when
Between, it is then corrected, after system trends are substantially constant, is differed with the detection signal at redundant detection less than 5% at main detection again
When, using the operation signal sent at main detection, redundant detection is everywhere in stand-by state.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710589800.5A CN107490320B (en) | 2017-07-19 | 2017-07-19 | A kind of system of automatic solution air cooler bias current |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710589800.5A CN107490320B (en) | 2017-07-19 | 2017-07-19 | A kind of system of automatic solution air cooler bias current |
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| CN107490320A CN107490320A (en) | 2017-12-19 |
| CN107490320B true CN107490320B (en) | 2019-12-03 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101140131A (en) * | 2007-08-24 | 2008-03-12 | 浙江理工大学 | Hydrocracking reaction effluence system based on asymmetry analyse |
| US9354002B2 (en) * | 2013-03-07 | 2016-05-31 | Spx Cooling Technologies, Inc. | Air cooled condenser apparatus and method |
| CN105757312A (en) * | 2016-05-10 | 2016-07-13 | 莱芜钢铁集团电子有限公司 | Automatic control method and device for heat exchanger valve |
| CN206037587U (en) * | 2016-09-05 | 2017-03-22 | 上海宝钢气体有限公司 | Prevent condenser of bias flow |
-
2017
- 2017-07-19 CN CN201710589800.5A patent/CN107490320B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101140131A (en) * | 2007-08-24 | 2008-03-12 | 浙江理工大学 | Hydrocracking reaction effluence system based on asymmetry analyse |
| US9354002B2 (en) * | 2013-03-07 | 2016-05-31 | Spx Cooling Technologies, Inc. | Air cooled condenser apparatus and method |
| CN105757312A (en) * | 2016-05-10 | 2016-07-13 | 莱芜钢铁集团电子有限公司 | Automatic control method and device for heat exchanger valve |
| CN206037587U (en) * | 2016-09-05 | 2017-03-22 | 上海宝钢气体有限公司 | Prevent condenser of bias flow |
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| CN107490320A (en) | 2017-12-19 |
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Effective date of registration: 20230906 Address after: Group 34, Shengli Ju, Jiang'an Town, Rugao City, Nantong City, Jiangsu Province, 226500 Patentee after: Jiangsu Christe Refrigeration Equipment Co.,Ltd. Address before: 226500 group 1, lianlianlianxin village, Jiang'an Town, Rugao City, Nantong City, Jiangsu Province Patentee before: Jiangsu tafen Equipment Technology Co.,Ltd. |
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