CN107490320A - A kind of automatic system for solving air cooler bias current - Google Patents
A kind of automatic system for solving air cooler bias current Download PDFInfo
- Publication number
- CN107490320A CN107490320A CN201710589800.5A CN201710589800A CN107490320A CN 107490320 A CN107490320 A CN 107490320A CN 201710589800 A CN201710589800 A CN 201710589800A CN 107490320 A CN107490320 A CN 107490320A
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- China
- Prior art keywords
- air cooler
- detection
- signal
- adjustment unit
- flow
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- 238000001514 detection method Methods 0.000 claims abstract description 83
- 239000000463 material Substances 0.000 claims abstract description 38
- 238000005070 sampling Methods 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 6
- 230000003139 buffering effect Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011143 downstream manufacturing Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
Classifications
-
- 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
Abstract
The present invention relates to a kind of automatic system for solving air cooler bias current, including：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 total flow mean allocation of air cooler entrance thermal material is exported to the shunt volume of cold material at two, the flow that cold material is exported at two is reached into balance.The present invention averagely distributes each rate of discharge automatically according to air cooler inlet flow rate, is adjusted using hysteresis, fundamentally solves the problems, such as air cooler outlet flow deflection.
Description
Technical field
The invention belongs to automation field, more particularly to a kind of automatic system for solving air cooler bias current.
Background technology
The heat exchanger that air cooler is commonly used as a kind of chemical industry, in normal chemical process, because produce load is lifted
Or reduce, cause air cooler treating capacity to produce change, inlet flow rate also changes therewith, and air cooler branch outlet is also due to pressure
Inequality produces bias current, causes one outlet flow excessive, and one outlet low discharge.And bias current can to production cause it is huge
Harm, it declines air cooler heat exchange efficiency, and if thermal material can not be cooled to temperature needed for technique, downstream process equipment will meet with
Shut down, the excessive directly row pressure of pressure to torch burning, or even the dangerous chemical material of leakage.
And solve air cooler bias current automatically and be 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 so also result in bias current, and be more difficult to recovery air cooler and normally given birth to
Production.
The content of the invention
Present invention aims at provide a kind of automatic system for solving air cooler bias current.
A kind of automatic system for solving air cooler bias current, it is characterised in that including：Flow sensing unit, automatically adjust list
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 send to data processing unit, data processing unit and receive 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, will
The flow that cold material is exported at two reaches balance.
Further, the flow sensing unit is acoustic wave, specially detects 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 the 3rd sampling 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 into again at two and detects, wherein being at the air cooler one at main detection, preferentially provides the detection hot thing of air cooler entrance
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 produce fluctuation, start and carry out hysteresis regulation at redundant detection.
Further, startup hysteresis adjusting condition is, 10% is differed 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 standard is：When being disturbed in controlled process and make controlled parameter drift-out to point value, it 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 regulation is adjusted using the operation signal at redundant detection in the automatic adjustment unit；By at main detection with it is standby
After 50 meters of deviation buffer strip at detection, offset signal is detected at main detection, now the automatic adjustment unit uses main inspection
Valve opening regulation is adjusted in the operation signal sent at survey.
Further, the automatic adjustment unit Selfstabilizing, which is adjusted, is specially：When offset signal occurs, parameter hair is controlled
It is raw to change, operation signal is sent with replacing at redundant detection at main detection, now the automatic adjustment unit is according to controlled parameter
And the deviation and variation tendency of set-point, speed are further corrected, and existing parameter constant is kept after correction, waits a main detection
Place and the time of the buffering hysteresis regulation at redundant detection, then it is corrected again, after system trends are substantially constant, at main detection
Differed with the detection signal at redundant detection less than 5% when, using at main detection send operation signal, redundant detection everywhere in
Stand-by state.
Further, automatic adjustment unit performs signal and also includes being installed on the temperature detector exported at air cooler two,
The outlet temperature detection as little as setting value at air cooler two, opens automatic adjustment unit and adjusts to normal value.
Beneficial effects of the present invention：
1. the present invention when air cooler is due to outlet material flow imbalance, adjustment in time, recovers normal process production.
2. the present invention in air cooler self-regulating process, using double fluid gauge, solves hysteresis.
Brief description of the drawings
Fig. 1 is a kind of system structure diagram of the automatic system for solving air cooler bias current of the present invention.
Embodiment
Below with reference to the embodiment of the brief description of the drawings present invention.
Present invention aims at provide a kind of automatic system for solving air cooler bias current.
A kind of automatic system for solving air cooler bias current, it is characterised in that including：Flow sensing unit, automatically adjust list
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 send to data processing unit, data processing unit and receive 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, will
The flow that cold material is exported at two reaches balance.The flow sensing unit is acoustic wave, specially detects air cooler and 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 the 3rd sampling acoustic wave flow signal；Wherein, first inside air cooler entrance thermal material pipeline is detected to adopt
Sample acoustic wave flow signal is divided at two again to be detected, wherein being at air cooler one at main detection, it is empty preferentially to provide the 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 produce fluctuation at main detection, start and carry out hysteresis regulation at redundant detection.Startup hysteresis adjusting condition exists
In the data at redundant detection with detection at main detection differ 10%.The inside the detection air cooler entrance thermal material pipeline
One, which samples the specific examination criteria of acoustic wave flow signal, is：Make controlled parameter drift-out to point value when being disturbed in controlled process
When, offset signal is preferentially received at redundant detection, operation signal to data processing unit, data processing unit is sent and sends behaviour
Make signal to the automatic adjustment unit, the automatic adjustment unit valve is adjusted using the operation signal at redundant detection and opens
Degree regulation；After 50 meters of deviation buffer strip at main detection and at redundant detection, offset signal is detected at main detection, now
Valve opening regulation is adjusted using the operation signal sent at main detection in the automatic adjustment unit.The automatic adjustment unit
Selfstabilizing is adjusted：When offset signal occurs, controlled parameter changes, with replacing hair at redundant detection at main detection
Operation signal is sent, now the automatic adjustment unit enters according to the deviation and variation tendency of controlled parameter and set-point, speed
One step correct, existing parameter constant is kept after correction, wait at a main detection with redundant detection at buffering hysteresis regulation when
Between, then it is corrected, after system trends are substantially constant, is differed at main detection with the detection signal at redundant detection less than 5% again
When, using the operation signal sent at main detection, redundant detection is everywhere in stand-by state.It is describedAutomatic adjustment unit performs signal
Also include being installed on the temperature detector exported at air cooler two, outlet temperature detection as little as setting value, is opened at air cooler two
Automatic adjustment unit is opened to adjust to normal value.
Claims (6)
- A kind of 1. automatic system for solving air cooler bias current, it is characterised in that including：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 sent to data processing unit, and data processing unit receives data on flows, by from Dynamic adjustment 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.
- 2. the automatic system for solving air cooler bias current according to claim 1, it is characterised in that the flow sensing unit For acoustic wave, the first sampling acoustic wave flow signal inside air cooler entrance thermal material pipeline, air cooler are specially detected The the second sampling acoustic wave flow signal and the 3rd sampling acoustic wave flow signal inside cold material pipeline are exported at two；Wherein, detect Inside air cooler entrance thermal material pipeline first sampling acoustic wave flow signal is divided into again at two detect, wherein at main detection for by At near-space cooler one, the first sampling acoustic wave flow signal inside the detection air cooler entrance thermal material pipeline is preferentially provided, It is the detector from 50 meters at main detection at redundant detection, when acoustic signals produce fluctuation at main detection, starts at redundant detection Carry out hysteresis regulation.
- 3. the automatic system for solving air cooler bias current according to claim 2, it is characterised in that startup hysteresis adjusting condition It is, 10% is differed with the data detected at main detection at redundant detection.
- 4. the automatic system for solving air cooler bias current according to claim 2, it is characterised in that the detection air cooler enters First inside mouth thermal material pipeline, which samples the specific examination criteria of acoustic wave flow signal, is：Make when being disturbed in controlled process When controlled parameter drift-out is to point value, offset signal is preferentially received 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 regulation is adjusted as signal；After 50 meters of deviation buffer strip at main detection and at redundant detection, at main detection Offset signal is detected, now valve opening tune is adjusted using the operation signal sent at main detection in the automatic adjustment unit Section.
- 5. the automatic system for solving air cooler bias current according to claim 4, it is characterised in that the automatic adjustment unit Selfstabilizing is adjusted：When offset signal occurs, controlled parameter changes, with replacing hair at redundant detection at main detection Operation signal is sent, now the automatic adjustment unit enters according to the deviation and variation tendency of controlled parameter and set-point, speed One step correct, existing parameter constant is kept after correction, wait at a main detection with redundant detection at buffering hysteresis regulation when Between, then it is corrected, after system trends are substantially constant, is differed at main detection with the detection signal at redundant detection less than 5% again When, using the operation signal sent at main detection, redundant detection is everywhere in stand-by state.
- 6. the automatic system for solving air cooler bias current according to claim 1, it is characterised in thatIt is describedAutomatic adjustment unit Performing signal also includes being installed on the temperature detector exported at air cooler two, and outlet temperature is detected and as little as set at air cooler two Definite value, open automatic adjustment unit and adjust to normal value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| 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 |
|---|---|---|---|
| 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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| Publication Number | Publication Date |
|---|---|
| CN107490320A true CN107490320A (en) | 2017-12-19 |
| CN107490320B CN107490320B (en) | 2019-12-03 |
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| CN201710589800.5A Active CN107490320B (en) | 2017-07-19 | 2017-07-19 | A kind of system of automatic solution air cooler bias current |
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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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| Publication number | Publication date |
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| CN107490320B (en) | 2019-12-03 |
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Effective date of registration: 20201104 Address after: Group 1, Lianlian Xincun, Jiang'an Town, Rugao City, Nantong City, Jiangsu Province, 226500 Patentee after: Jiangsu tafen Equipment Technology Co.,Ltd. Address before: 362000 e-commerce Park jq395, Qianyuan village, Luoyang Town, Quanzhou, Fujian Province Patentee before: Quanzhou Taishang investment zone Xinkeli New Material Co.,Ltd. |
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